Use pip conditional requirements to not install playwright for ARM (unsupported)

Co-authored-by: bwees <branonwees@gmail.com>

.github/ISSUE_TEMPLATE/bug_report.md

@@ -7,6 +7,20 @@ assignees: 'dgtlmoon'
 
 ---
 
+**DO NOT USE THIS FORM TO REPORT THAT A PARTICULAR WEBSITE IS NOT SCRAPING/WATCHING AS EXPECTED**
+
+This form is only for direct bugs and feature requests todo directly with the software.
+
+Please report watched websites (full URL and _any_ settings) that do not work with changedetection.io as expected [**IN THE DISCUSSION FORUMS**](https://github.com/dgtlmoon/changedetection.io/discussions) or your report will be deleted
+
+CONSIDER TAKING OUT A SUBSCRIPTION FOR A SMALL PRICE PER MONTH, YOU GET THE BENEFIT OF USING OUR PAID PROXIES AND FURTHERING THE DEVELOPMENT OF CHANGEDETECTION.IO
+
+THANK YOU
+
+
+
+
+
 **Describe the bug**
 A clear and concise description of what the bug is.
 
@@ -21,7 +35,7 @@ Steps to reproduce the behavior:
 3. Scroll down to '....'
 4. See error
 
-! ALWAYS INCLUDE AN EXAMPLE URL WHERE IT IS POSSIBLE TO RE-CREATE THE ISSUE !
+! ALWAYS INCLUDE AN EXAMPLE URL WHERE IT IS POSSIBLE TO RE-CREATE THE ISSUE - USE THE 'SHARE WATCH' FEATURE AND PASTE IN THE SHARE-LINK!
 
 **Expected behavior**
 A clear and concise description of what you expected to happen.

.github/workflows/containers.yml

@@ -85,8 +85,8 @@ jobs:
           version: latest
           driver-opts: image=moby/buildkit:master
 
-      # master always builds :latest
-      - name: Build and push :latest
+      # master branch -> :dev container tag
+      - name: Build and push :dev
         id: docker_build
         if: ${{ github.ref }} == "refs/heads/master"
         uses: docker/build-push-action@v2
@@ -95,12 +95,12 @@ jobs:
           file: ./Dockerfile
           push: true
           tags: |
-            ${{ secrets.DOCKER_HUB_USERNAME }}/changedetection.io:latest,ghcr.io/${{ github.repository }}:latest
+            ${{ secrets.DOCKER_HUB_USERNAME }}/changedetection.io:dev,ghcr.io/${{ github.repository }}:dev
           platforms: linux/amd64,linux/arm64,linux/arm/v6,linux/arm/v7
           cache-from: type=local,src=/tmp/.buildx-cache
           cache-to: type=local,dest=/tmp/.buildx-cache
 
-      # A new tagged release is required, which builds :tag
+      # A new tagged release is required, which builds :tag and :latest
       - name: Build and push :tag
         id: docker_build_tag_release
         if: github.event_name == 'release' && startsWith(github.event.release.tag_name, '0.')
@@ -110,7 +110,10 @@ jobs:
           file: ./Dockerfile
           push: true
           tags: |
-            ${{ secrets.DOCKER_HUB_USERNAME }}/changedetection.io:${{ github.event.release.tag_name }},ghcr.io/dgtlmoon/changedetection.io:${{ github.event.release.tag_name }}
+            ${{ secrets.DOCKER_HUB_USERNAME }}/changedetection.io:${{ github.event.release.tag_name }}
+            ghcr.io/dgtlmoon/changedetection.io:${{ github.event.release.tag_name }}
+            ${{ secrets.DOCKER_HUB_USERNAME }}/changedetection.io:latest
+            ghcr.io/dgtlmoon/changedetection.io:latest
           platforms: linux/amd64,linux/arm64,linux/arm/v6,linux/arm/v7
           cache-from: type=local,src=/tmp/.buildx-cache
           cache-to: type=local,dest=/tmp/.buildx-cache
@@ -125,5 +128,3 @@ jobs:
           key: ${{ runner.os }}-buildx-${{ github.sha }}
           restore-keys: |
             ${{ runner.os }}-buildx-
-
-

.github/workflows/test-container-build.yml

@@ -0,0 +1,55 @@
+name: ChangeDetection.io Container Build Test
+
+# Triggers the workflow on push or pull request events
+
+# This line doesnt work, even tho it is the documented one
+#on: [push, pull_request]
+
+on:
+  push:
+    paths:
+      - requirements.txt
+      - Dockerfile
+
+  pull_request:
+    paths:
+      - requirements.txt
+      - Dockerfile
+
+  # Changes to requirements.txt packages and Dockerfile may or may not always be compatible with arm etc, so worth testing
+  # @todo: some kind of path filter for requirements.txt and Dockerfile
+jobs:
+  test-container-build:
+    runs-on: ubuntu-latest
+    steps:
+        - uses: actions/checkout@v2
+        - name: Set up Python 3.9
+          uses: actions/setup-python@v2
+          with:
+            python-version: 3.9
+
+        # Just test that the build works, some libraries won't compile on ARM/rPi etc
+        - name: Set up QEMU
+          uses: docker/setup-qemu-action@v1
+          with:
+            image: tonistiigi/binfmt:latest
+            platforms: all
+
+        - name: Set up Docker Buildx
+          id: buildx
+          uses: docker/setup-buildx-action@v1
+          with:
+            install: true
+            version: latest
+            driver-opts: image=moby/buildkit:master
+
+        - name: Test that the docker containers can build
+          id: docker_build
+          uses: docker/build-push-action@v2
+          # https://github.com/docker/build-push-action#customizing
+          with:
+            context: ./
+            file: ./Dockerfile
+            platforms: linux/arm/v7,linux/arm/v6,linux/amd64,linux/arm64,
+            cache-from: type=local,src=/tmp/.buildx-cache
+            cache-to: type=local,dest=/tmp/.buildx-cache

.github/workflows/test-only.yml

@@ -1,28 +1,25 @@
-name: ChangeDetection.io Test
+name: ChangeDetection.io App Test
 
 # Triggers the workflow on push or pull request events
 on: [push, pull_request]
 
 jobs:
-  test-build:
+  test-application:
     runs-on: ubuntu-latest
     steps:
-
       - uses: actions/checkout@v2
       - name: Set up Python 3.9
         uses: actions/setup-python@v2
         with:
           python-version: 3.9
 
-      - name: Show env vars
-        run: set
-
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
           pip install flake8 pytest
           if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
           if [ -f requirements-dev.txt ]; then pip install -r requirements-dev.txt; fi
+
       - name: Lint with flake8
         run: |
           # stop the build if there are Python syntax errors or undefined names
@@ -39,7 +36,4 @@ jobs:
           # Each test is totally isolated and performs its own cleanup/reset
           cd changedetectionio; ./run_all_tests.sh
 
-      # https://github.com/docker/build-push-action/blob/master/docs/advanced/test-before-push.md ?
-      # https://github.com/docker/buildx/issues/59 ? Needs to be one platform?
 
-      # https://github.com/docker/buildx/issues/495#issuecomment-918925854

CONTRIBUTING.md

@@ -6,7 +6,7 @@ Otherwise, it's always best to PR into the `dev` branch.
 
 Please be sure that all new functionality has a matching test!
 
-Use `pytest` to validate/test, you can run the existing tests as `pytest tests/test_notifications.py` for example
+Use `pytest` to validate/test, you can run the existing tests as `pytest tests/test_notification.py` for example
 
 ```
 pip3 install -r requirements-dev

Dockerfile

@@ -5,13 +5,14 @@ FROM python:3.8-slim as builder
 ARG CRYPTOGRAPHY_DONT_BUILD_RUST=1
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    libssl-dev \
-    libffi-dev \
+    g++ \
     gcc \
     libc-dev \
+    libffi-dev \
+    libssl-dev \
     libxslt-dev \
-    zlib1g-dev \
-    g++
+    make \
+    zlib1g-dev
 
 RUN mkdir /install
 WORKDIR /install
@@ -20,10 +21,9 @@ COPY requirements.txt /requirements.txt
 
 RUN pip install --target=/dependencies -r /requirements.txt
 
-# Playwright is an alternative to Selenium
-# Excluded this package from requirements.txt to prevent arm/v6 and arm/v7 builds from failing
-RUN pip install --target=/dependencies playwright~=1.20 \
-    || echo "WARN: Failed to install Playwright. The application can still run, but the Playwright option will be disabled."
+RUN pip install --target=/dependencies jq~=1.3 \
+    || echo "WARN: Failed to install JQ. The application can still run, but the Jq: filter option will be disabled."
+
 
 # Final image stage
 FROM python:3.8-slim
@@ -58,6 +58,7 @@ EXPOSE 5000
 
 # The actual flask app
 COPY changedetectionio /app/changedetectionio
+
 # The eventlet server wrapper
 COPY changedetection.py /app/changedetection.py
 

MANIFEST.in

@@ -2,6 +2,7 @@ recursive-include changedetectionio/api *
 recursive-include changedetectionio/templates *
 recursive-include changedetectionio/static *
 recursive-include changedetectionio/model *
+recursive-include changedetectionio/tests *
 include changedetection.py
 global-exclude *.pyc
 global-exclude node_modules

README-pip.md

@@ -1,45 +1,48 @@
-#  changedetection.io
-![changedetection.io](https://github.com/dgtlmoon/changedetection.io/actions/workflows/test-only.yml/badge.svg?branch=master)
-<a href="https://hub.docker.com/r/dgtlmoon/changedetection.io" target="_blank" title="Change detection docker hub">
-  <img src="https://img.shields.io/docker/pulls/dgtlmoon/changedetection.io" alt="Docker Pulls"/>
-</a>
-<a href="https://hub.docker.com/r/dgtlmoon/changedetection.io" target="_blank" title="Change detection docker hub">
-  <img src="https://img.shields.io/github/v/release/dgtlmoon/changedetection.io" alt="Change detection latest tag version"/> 
-</a>
+## Web Site Change Detection, Monitoring and Notification.
 
-## Self-hosted open source change monitoring of web pages.
+Live your data-life pro-actively, track website content changes and receive notifications via Discord, Email, Slack, Telegram and 70+ more
 
-_Know when web pages change! Stay ontop of new information!_ 
-
-Live your data-life *pro-actively* instead of *re-actively*, do not rely on manipulative social media for consuming important information.
+[<img src="https://raw.githubusercontent.com/dgtlmoon/changedetection.io/master/docs/screenshot.png" style="max-width:100%;" alt="Self-hosted web page change monitoring"  title="Self-hosted web page change monitoring"  />](https://lemonade.changedetection.io/start?src=pip)
 
 
-<img src="https://raw.githubusercontent.com/dgtlmoon/changedetection.io/master/screenshot.png" style="max-width:100%;" alt="Self-hosted web page change monitoring"  title="Self-hosted web page change monitoring"  />
-
-
-**Get your own private instance now! Let us host it for you!**
-
-[**Try our $6.99/month subscription - unlimited checks, watches and notifications!**](https://lemonade.changedetection.io/start), choose from different geographical locations, let us handle everything for you. 
-
+[**Don't have time? Let us host it for you! try our extremely affordable subscription use our proxies and support!**](https://lemonade.changedetection.io/start) 
 
 
 #### Example use cases
 
-Know when ...
-
-- Government department updates (changes are often only on their websites)
-- Local government news (changes are often only on their websites)
+- Products and services have a change in pricing
+- _Out of stock notification_ and _Back In stock notification_
+- Governmental department updates (changes are often only on their websites)
 - New software releases, security advisories when you're not on their mailing list.
 - Festivals with changes
 - Realestate listing changes
+- Know when your favourite whiskey is on sale, or other special deals are announced before anyone else
 - COVID related news from government websites
+- University/organisation news from their website
 - Detect and monitor changes in JSON API responses 
-- API monitoring and alerting
+- JSON API monitoring and alerting
+- Changes in legal and other documents
+- Trigger API calls via notifications when text appears on a website
+- Glue together APIs using the JSON filter and JSON notifications
+- Create RSS feeds based on changes in web content
+- Monitor HTML source code for unexpected changes, strengthen your PCI compliance
+- You have a very sensitive list of URLs to watch and you do _not_ want to use the paid alternatives. (Remember, _you_ are the product)
+
+_Need an actual Chrome runner with Javascript support? We support fetching via WebDriver and Playwright!</a>_
+
+#### Key Features
+
+- Lots of trigger filters, such as "Trigger on text", "Remove text by selector", "Ignore text", "Extract text", also using regular-expressions!
+- Target elements with xPath and CSS Selectors, Easily monitor complex JSON with JSONPath or jq
+- Switch between fast non-JS and Chrome JS based "fetchers"
+- Easily specify how often a site should be checked
+- Execute JS before extracting text (Good for logging in, see examples in the UI!)
+- Override Request Headers, Specify `POST` or `GET` and other methods
+- Use the "Visual Selector" to help target specific elements
 
-**Get monitoring now!**
 
 ```bash
-$ pip3 install changedetection.io   
+$ pip3 install changedetection.io
 ```
 
 Specify a target for the *datastore path* with `-d` (required) and a *listening port* with `-p` (defaults to `5000`)
@@ -51,17 +54,5 @@ $ changedetection.io -d /path/to/empty/data/dir -p 5000
 
 Then visit http://127.0.0.1:5000 , You should now be able to access the UI.
 
-### Features
-- Website monitoring
-- Change detection of content and analyses
-- Filters on change (Select by CSS or JSON)
-- Triggers (Wait for text, wait for regex)
-- Notification support
-- JSON API Monitoring
-- Parse JSON embedded in HTML
-- (Reverse) Proxy support
-- Javascript support via WebDriver
-- RaspberriPi (arm v6/v7/64 support)
-
 See https://github.com/dgtlmoon/changedetection.io for more information.
 

README.md

@@ -1,38 +1,36 @@
-#  changedetection.io
+## Web Site Change Detection, Monitoring and Notification.
+
+Live your data-life pro-actively, track website content changes and receive notifications via Discord, Email, Slack, Telegram and 70+ more
+
+[<img src="https://raw.githubusercontent.com/dgtlmoon/changedetection.io/master/docs/screenshot.png" style="max-width:100%;" alt="Self-hosted web page change monitoring"  title="Self-hosted web page change monitoring"  />](https://lemonade.changedetection.io/start?src=github)
+
 [![Release Version][release-shield]][release-link] [![Docker Pulls][docker-pulls]][docker-link] [![License][license-shield]](LICENSE.md)
 
 ![changedetection.io](https://github.com/dgtlmoon/changedetection.io/actions/workflows/test-only.yml/badge.svg?branch=master)
 
-## Self-Hosted, Open Source, Change Monitoring of Web Pages
+Know when important content changes, we support notifications via Discord, Telegram, Home-Assistant, Slack, Email and 70+ more
 
-_Know when web pages change! Stay ontop of new information!_ 
+[**Don't have time? Let us host it for you! try our $6.99/month subscription - use our proxies and support!**](https://lemonade.changedetection.io/start) , _half the price of other website change monitoring services and comes with unlimited watches & checks!_
 
-Live your data-life *pro-actively* instead of *re-actively*.
-
-Free, Open-source web page monitoring, notification and change detection. Don't have time? [**Try our $6.99/month subscription - unlimited checks and watches!**](https://lemonade.changedetection.io/start)
+- Chrome browser included.
+- Super fast, no registration needed setup.
+- Start watching and receiving change notifications instantly.
 
 
-[<img src="https://raw.githubusercontent.com/dgtlmoon/changedetection.io/master/docs/screenshot.png" style="max-width:100%;" alt="Self-hosted web page change monitoring"  title="Self-hosted web page change monitoring"  />](https://lemonade.changedetection.io/start)
+Easily see what changed, examine by word, line, or individual character.
 
-
-**Get your own private instance now! Let us host it for you!**
-
-[**Try our $6.99/month subscription - unlimited checks and watches!**](https://lemonade.changedetection.io/start) , _half the price of other website change monitoring services and comes with unlimited watches & checks!_
-
-
-
-- Automatic Updates, Automatic Backups, No Heroku "paused application", don't miss a change!
-- Javascript browser included
-- Unlimited checks and watches!
+<img src="https://raw.githubusercontent.com/dgtlmoon/changedetection.io/master/docs/screenshot-diff.png" style="max-width:100%;" alt="Self-hosted web page change monitoring context difference "  title="Self-hosted web page change monitoring context difference " />
 
 
 #### Example use cases
 
 - Products and services have a change in pricing
+- _Out of stock notification_ and _Back In stock notification_
 - Governmental department updates (changes are often only on their websites)
 - New software releases, security advisories when you're not on their mailing list.
 - Festivals with changes
 - Realestate listing changes
+- Know when your favourite whiskey is on sale, or other special deals are announced before anyone else
 - COVID related news from government websites
 - University/organisation news from their website
 - Detect and monitor changes in JSON API responses 
@@ -44,21 +42,28 @@ Free, Open-source web page monitoring, notification and change detection. Don't
 - Monitor HTML source code for unexpected changes, strengthen your PCI compliance
 - You have a very sensitive list of URLs to watch and you do _not_ want to use the paid alternatives. (Remember, _you_ are the product)
 
-_Need an actual Chrome runner with Javascript support? We support fetching via WebDriver!</a>_
+_Need an actual Chrome runner with Javascript support? We support fetching via WebDriver and Playwright!</a>_
+
+#### Key Features
+
+- Lots of trigger filters, such as "Trigger on text", "Remove text by selector", "Ignore text", "Extract text", also using regular-expressions!
+- Target elements with xPath and CSS Selectors, Easily monitor complex JSON with JSONPath or jq
+- Switch between fast non-JS and Chrome JS based "fetchers"
+- Easily specify how often a site should be checked
+- Execute JS before extracting text (Good for logging in, see examples in the UI!)
+- Override Request Headers, Specify `POST` or `GET` and other methods
+- Use the "Visual Selector" to help target specific elements
+- Configurable [proxy per watch](https://github.com/dgtlmoon/changedetection.io/wiki/Proxy-configuration)
+
+We [recommend and use Bright Data](https://brightdata.grsm.io/n0r16zf7eivq) global proxy services, Bright Data will match any first deposit up to $100 using our signup link.
 
 ## Screenshots
 
-### Examine differences in content.
-
-Easily see what changed, examine by word, line, or individual character.
-
-<img src="https://raw.githubusercontent.com/dgtlmoon/changedetection.io/master/docs/screenshot-diff.png" style="max-width:100%;" alt="Self-hosted web page change monitoring context difference "  title="Self-hosted web page change monitoring context difference " />
-
 Please :star: star :star: this project and help it grow! https://github.com/dgtlmoon/changedetection.io/
 
-### Target elements with the Visual Selector tool.
+### Filter by elements using the Visual Selector tool.
 
-Available when connected to a <a href="https://github.com/dgtlmoon/changedetection.io/wiki/Playwright-content-fetcher">playwright content fetcher</a> (available also as part of our subscription service)
+Available when connected to a <a href="https://github.com/dgtlmoon/changedetection.io/wiki/Playwright-content-fetcher">playwright content fetcher</a> (included as part of our subscription service)
 
 <img src="https://raw.githubusercontent.com/dgtlmoon/changedetection.io/master/docs/visualselector-anim.gif" style="max-width:100%;" alt="Self-hosted web page change monitoring context difference "  title="Self-hosted web page change monitoring context difference " />
 
@@ -67,14 +72,18 @@ Available when connected to a <a href="https://github.com/dgtlmoon/changedetecti
 ### Docker
 
 With Docker composer, just clone this repository and..
+
 ```bash
 $ docker-compose up -d
 ```
+
 Docker standalone
 ```bash
 $ docker run -d --restart always -p "127.0.0.1:5000:5000" -v datastore-volume:/datastore --name changedetection.io dgtlmoon/changedetection.io
 ```
 
+`:latest` tag is our latest stable release, `:dev` tag is our bleeding edge `master` branch.
+
 ### Windows
 
 See the install instructions at the wiki https://github.com/dgtlmoon/changedetection.io/wiki/Microsoft-Windows
@@ -112,9 +121,9 @@ See the wiki for more information https://github.com/dgtlmoon/changedetection.io
 
 
 ## Filters
-XPath, JSONPath and CSS support comes baked in! You can be as specific as you need, use XPath exported from various XPath element query creation tools.
 
-(We support LXML re:test, re:math and re:replace.)
+XPath, JSONPath, jq, and CSS support comes baked in! You can be as specific as you need, use XPath exported from various XPath element query creation tools. 
+(We support LXML `re:test`, `re:math` and `re:replace`.)
 
 ## Notifications
 
@@ -142,7 +151,7 @@ Now you can also customise your notification content!
 
 ## JSON API Monitoring
 
-Detect changes and monitor data in JSON API's by using the built-in JSONPath selectors as a filter / selector.
+Detect changes and monitor data in JSON API's by using either JSONPath or jq to filter, parse, and restructure JSON as needed.
 
 ![image](https://raw.githubusercontent.com/dgtlmoon/changedetection.io/master/docs/json-filter-field-example.png)
 
@@ -150,9 +159,20 @@ This will re-parse the JSON and apply formatting to the text, making it super ea
 
 ![image](https://raw.githubusercontent.com/dgtlmoon/changedetection.io/master/docs/json-diff-example.png)
 
+### JSONPath or jq?
+
+For more complex parsing, filtering, and modifying of JSON data, jq is recommended due to the built-in operators and functions. Refer to the [documentation](https://stedolan.github.io/jq/manual/) for more specifc information on jq.
+
+One big advantage of `jq` is that you can use logic in your JSON filter, such as filters to only show items that have a value greater than/less than etc.
+
+See the wiki https://github.com/dgtlmoon/changedetection.io/wiki/JSON-Selector-Filter-help for more information and examples
+
+Note: `jq` library must be added separately (`pip3 install jq`)
+
+
 ### Parse JSON embedded in HTML!
 
-When you enable a `json:` filter, you can even automatically extract and parse embedded JSON inside a HTML page! Amazingly handy for sites that build content based on JSON, such as many e-commerce websites. 
+When you enable a `json:` or `jq:` filter, you can even automatically extract and parse embedded JSON inside a HTML page! Amazingly handy for sites that build content based on JSON, such as many e-commerce websites. 
 
 ```
 <html>
@@ -162,11 +182,11 @@ When you enable a `json:` filter, you can even automatically extract and parse e
 </script>
 ```  
 
-`json:$.price` would give `23.50`, or you can extract the whole structure
+`json:$.price` or `jq:.price` would give `23.50`, or you can extract the whole structure
 
-## Proxy configuration
+## Proxy Configuration
 
-See the wiki https://github.com/dgtlmoon/changedetection.io/wiki/Proxy-configuration
+See the wiki https://github.com/dgtlmoon/changedetection.io/wiki/Proxy-configuration , we also support using [BrightData proxy services where possible]( https://github.com/dgtlmoon/changedetection.io/wiki/Proxy-configuration#brightdata-proxy-support)
 
 ## Raspberry Pi support?
 

changedetection.py

@@ -6,6 +6,36 @@
 # Read more https://github.com/dgtlmoon/changedetection.io/wiki
 
 from changedetectionio import changedetection
+import multiprocessing
+import signal
+import os
+
+def sigchld_handler(_signo, _stack_frame):
+    import sys
+    print('Shutdown: Got SIGCHLD')
+    # https://stackoverflow.com/questions/40453496/python-multiprocessing-capturing-signals-to-restart-child-processes-or-shut-do
+    pid, status = os.waitpid(-1, os.WNOHANG | os.WUNTRACED | os.WCONTINUED)
+
+    print('Sub-process: pid %d status %d' % (pid, status))
+    if status != 0:
+        sys.exit(1)
+
+    raise SystemExit
 
 if __name__ == '__main__':
-    changedetection.main()
+
+    #signal.signal(signal.SIGCHLD, sigchld_handler)
+
+    # The only way I could find to get Flask to shutdown, is to wrap it and then rely on the subsystem issuing SIGTERM/SIGKILL
+    parse_process = multiprocessing.Process(target=changedetection.main)
+    parse_process.daemon = True
+    parse_process.start()
+    import time
+
+    try:
+        while True:
+            time.sleep(1)
+
+    except KeyboardInterrupt:
+        #parse_process.terminate() not needed, because this process will issue it to the sub-process anyway
+        print ("Exited - CTRL+C")

changedetectionio/.gitignore

@@ -1 +1,2 @@
 test-datastore
+package-lock.json

changedetectionio/__init__.py

@@ -1,16 +1,5 @@
 #!/usr/bin/python3
 
-
-# @todo logging
-# @todo extra options for url like , verify=False etc.
-# @todo enable https://urllib3.readthedocs.io/en/latest/user-guide.html#ssl as option?
-# @todo option for interval day/6 hour/etc
-# @todo on change detected, config for calling some API
-# @todo fetch title into json
-# https://distill.io/features
-# proxy per check
-#  - flask_cors, itsdangerous,MarkupSafe
-
 import datetime
 import os
 import queue
@@ -20,6 +9,7 @@ from copy import deepcopy
 from threading import Event
 
 import flask_login
+import logging
 import pytz
 import timeago
 from feedgen.feed import FeedGenerator
@@ -43,7 +33,7 @@ from flask_wtf import CSRFProtect
 from changedetectionio import html_tools
 from changedetectionio.api import api_v1
 
-__version__ = '0.39.14'
+__version__ = '0.39.20.4'
 
 datastore = None
 
@@ -53,7 +43,7 @@ ticker_thread = None
 
 extra_stylesheets = []
 
-update_q = queue.Queue()
+update_q = queue.PriorityQueue()
 
 notification_q = queue.Queue()
 
@@ -75,7 +65,7 @@ app.config['LOGIN_DISABLED'] = False
 
 # Disables caching of the templates
 app.config['TEMPLATES_AUTO_RELOAD'] = True
-
+app.jinja_env.add_extension('jinja2.ext.loopcontrols')
 csrf = CSRFProtect()
 csrf.init_app(app)
 
@@ -107,25 +97,26 @@ def _jinja2_filter_datetime(watch_obj, format="%Y-%m-%d %H:%M:%S"):
     # Worker thread tells us which UUID it is currently processing.
     for t in running_update_threads:
         if t.current_uuid == watch_obj['uuid']:
-            return "Checking now.."
+            return '<span class="loader"></span><span> Checking now</span>'
 
     if watch_obj['last_checked'] == 0:
         return 'Not yet'
 
     return timeago.format(int(watch_obj['last_checked']), time.time())
 
-
-# @app.context_processor
-# def timeago():
-#    def _timeago(lower_time, now):
-#        return timeago.format(lower_time, now)
-#    return dict(timeago=_timeago)
-
 @app.template_filter('format_timestamp_timeago')
 def _jinja2_filter_datetimestamp(timestamp, format="%Y-%m-%d %H:%M:%S"):
+    if timestamp == False:
+        return 'Not yet'
+
     return timeago.format(timestamp, time.time())
-    # return timeago.format(timestamp, time.time())
-    # return datetime.datetime.utcfromtimestamp(timestamp).strftime(format)
+
+@app.template_filter('format_seconds_ago')
+def _jinja2_filter_seconds_precise(timestamp):
+    if timestamp == False:
+        return 'Not yet'
+
+    return format(int(time.time()-timestamp), ',d')
 
 # When nobody is logged in Flask-Login's current_user is set to an AnonymousUser object.
 class User(flask_login.UserMixin):
@@ -203,6 +194,9 @@ def changedetection_app(config=None, datastore_o=None):
     watch_api.add_resource(api_v1.Watch, '/api/v1/watch/<string:uuid>',
                            resource_class_kwargs={'datastore': datastore, 'update_q': update_q})
 
+    watch_api.add_resource(api_v1.SystemInfo, '/api/v1/systeminfo',
+                           resource_class_kwargs={'datastore': datastore, 'update_q': update_q})
+
 
 
 
@@ -297,7 +291,7 @@ def changedetection_app(config=None, datastore_o=None):
         # Sort by last_changed and add the uuid which is usually the key..
         sorted_watches = []
 
-        # @todo needs a .itemsWithTag() or something
+        # @todo needs a .itemsWithTag() or something - then we can use that in Jinaj2 and throw this away
         for uuid, watch in datastore.data['watching'].items():
 
             if limit_tag != None:
@@ -312,7 +306,7 @@ def changedetection_app(config=None, datastore_o=None):
                 watch['uuid'] = uuid
                 sorted_watches.append(watch)
 
-        sorted_watches.sort(key=lambda x: x['last_changed'], reverse=True)
+        sorted_watches.sort(key=lambda x: x.last_changed, reverse=False)
 
         fg = FeedGenerator()
         fg.title('changedetection.io')
@@ -331,7 +325,7 @@ def changedetection_app(config=None, datastore_o=None):
             if not watch.viewed:
                 # Re #239 - GUID needs to be individual for each event
                 # @todo In the future make this a configurable link back (see work on BASE_URL https://github.com/dgtlmoon/changedetection.io/pull/228)
-                guid = "{}/{}".format(watch['uuid'], watch['last_changed'])
+                guid = "{}/{}".format(watch['uuid'], watch.last_changed)
                 fe = fg.add_entry()
 
                 # Include a link to the diff page, they will have to login here to see if password protection is enabled.
@@ -351,9 +345,8 @@ def changedetection_app(config=None, datastore_o=None):
                 latest_fname = watch.history[dates[-1]]
 
                 html_diff = diff.render_diff(prev_fname, latest_fname, include_equal=False, line_feed_sep="</br>")
-                fe.description(description="<![CDATA["
-                                           "<html><body><h4>{}</h4>{}</body></html>"
-                                           "]]>".format(watch_title, html_diff))
+                fe.content(content="<html><body><h4>{}</h4>{}</body></html>".format(watch_title, html_diff),
+                           type='CDATA')
 
                 fe.guid(guid, permalink=False)
                 dt = datetime.datetime.fromtimestamp(int(watch.newest_history_key))
@@ -361,7 +354,7 @@ def changedetection_app(config=None, datastore_o=None):
                 fe.pubDate(dt)
 
         response = make_response(fg.rss_str())
-        response.headers.set('Content-Type', 'application/rss+xml')
+        response.headers.set('Content-Type', 'application/rss+xml;charset=utf-8')
         return response
 
     @app.route("/", methods=['GET'])
@@ -370,20 +363,20 @@ def changedetection_app(config=None, datastore_o=None):
         from changedetectionio import forms
 
         limit_tag = request.args.get('tag')
-        pause_uuid = request.args.get('pause')
-
         # Redirect for the old rss path which used the /?rss=true
         if request.args.get('rss'):
             return redirect(url_for('rss', tag=limit_tag))
 
-        if pause_uuid:
-            try:
-                datastore.data['watching'][pause_uuid]['paused'] ^= True
-                datastore.needs_write = True
+        op = request.args.get('op')
+        if op:
+            uuid = request.args.get('uuid')
+            if op == 'pause':
+                datastore.data['watching'][uuid]['paused'] ^= True
+            elif op == 'mute':
+                datastore.data['watching'][uuid]['notification_muted'] ^= True
 
-                return redirect(url_for('index', tag = limit_tag))
-            except KeyError:
-                pass
+            datastore.needs_write = True
+            return redirect(url_for('index', tag = limit_tag))
 
         # Sort by last_changed and add the uuid which is usually the key..
         sorted_watches = []
@@ -403,12 +396,9 @@ def changedetection_app(config=None, datastore_o=None):
                 watch['uuid'] = uuid
                 sorted_watches.append(watch)
 
-        sorted_watches.sort(key=lambda x: x['last_changed'], reverse=True)
-
         existing_tags = datastore.get_all_tags()
 
         form = forms.quickWatchForm(request.form)
-
         output = render_template("watch-overview.html",
                                  form=form,
                                  watches=sorted_watches,
@@ -419,7 +409,7 @@ def changedetection_app(config=None, datastore_o=None):
                                  # Don't link to hosting when we're on the hosting environment
                                  hosted_sticky=os.getenv("SALTED_PASS", False) == False,
                                  guid=datastore.data['app_guid'],
-                                 queued_uuids=update_q.queue)
+                                 queued_uuids=[uuid for p,uuid in update_q.queue])
 
 
         if session.get('share-link'):
@@ -433,7 +423,9 @@ def changedetection_app(config=None, datastore_o=None):
     def ajax_callback_send_notification_test():
 
         import apprise
-        apobj = apprise.Apprise()
+        from .apprise_asset import asset
+        apobj = apprise.Apprise(asset=asset)
+
 
         # validate URLS
         if not len(request.form['notification_urls'].strip()):
@@ -458,25 +450,39 @@ def changedetection_app(config=None, datastore_o=None):
 
         return 'OK'
 
-    @app.route("/scrub", methods=['GET', 'POST'])
+
+    @app.route("/clear_history/<string:uuid>", methods=['GET'])
     @login_required
-    def scrub_page():
+    def clear_watch_history(uuid):
+        try:
+            datastore.clear_watch_history(uuid)
+        except KeyError:
+            flash('Watch not found', 'error')
+        else:
+            flash("Cleared snapshot history for watch {}".format(uuid))
+
+        return redirect(url_for('index'))
+
+    @app.route("/clear_history", methods=['GET', 'POST'])
+    @login_required
+    def clear_all_history():
 
         if request.method == 'POST':
             confirmtext = request.form.get('confirmtext')
 
-            if confirmtext == 'scrub':
+            if confirmtext == 'clear':
                 changes_removed = 0
                 for uuid in datastore.data['watching'].keys():
-                    datastore.scrub_watch(uuid)
+                    datastore.clear_watch_history(uuid)
+                    #TODO: KeyError not checked, as it is above
 
-                flash("Cleared all snapshot history")
+                flash("Cleared snapshot history for all watches")
             else:
                 flash('Incorrect confirmation text.', 'error')
 
             return redirect(url_for('index'))
 
-        output = render_template("scrub.html")
+        output = render_template("clear_all_history.html")
         return output
 
 
@@ -489,7 +495,7 @@ def changedetection_app(config=None, datastore_o=None):
         from changedetectionio import fetch_site_status
 
         # Get the most recent one
-        newest_history_key = datastore.get_val(uuid, 'newest_history_key')
+        newest_history_key = datastore.data['watching'][uuid].get('newest_history_key')
 
         # 0 means that theres only one, so that there should be no 'unviewed' history available
         if newest_history_key == 0:
@@ -538,16 +544,13 @@ def changedetection_app(config=None, datastore_o=None):
         # be sure we update with a copy instead of accidently editing the live object by reference
         default = deepcopy(datastore.data['watching'][uuid])
 
-        # Show system wide default if nothing configured
-        if datastore.data['watching'][uuid]['fetch_backend'] is None:
-            default['fetch_backend'] = datastore.data['settings']['application']['fetch_backend']
-
         # Show system wide default if nothing configured
         if all(value == 0 or value == None for value in datastore.data['watching'][uuid]['time_between_check'].values()):
             default['time_between_check'] = deepcopy(datastore.data['settings']['requests']['time_between_check'])
 
         # Defaults for proxy choice
         if datastore.proxy_list is not None:  # When enabled
+            # @todo
             # Radio needs '' not None, or incase that the chosen one no longer exists
             if default['proxy'] is None or not any(default['proxy'] in tup for tup in datastore.proxy_list):
                 default['proxy'] = ''
@@ -561,11 +564,17 @@ def changedetection_app(config=None, datastore_o=None):
             # @todo - Couldn't get setattr() etc dynamic addition working, so remove it instead
             del form.proxy
         else:
-            form.proxy.choices = [('', 'Default')] + datastore.proxy_list
+            form.proxy.choices = [('', 'Default')]
+            for p in datastore.proxy_list:
+                form.proxy.choices.append(tuple((p, datastore.proxy_list[p]['label'])))
+
 
         if request.method == 'POST' and form.validate():
             extra_update_obj = {}
 
+            if request.args.get('unpause_on_save'):
+                extra_update_obj['paused'] = False
+
             # Re #110, if they submit the same as the default value, set it to None, so we continue to follow the default
             # Assume we use the default value, unless something relevant is different, then use the form value
             # values could be None, 0 etc.
@@ -581,10 +590,8 @@ def changedetection_app(config=None, datastore_o=None):
             if form.fetch_backend.data == datastore.data['settings']['application']['fetch_backend']:
                 extra_update_obj['fetch_backend'] = None
 
-            # Notification URLs
-            datastore.data['watching'][uuid]['notification_urls'] = form.notification_urls.data
 
-            # Ignore text
+             # Ignore text
             form_ignore_text = form.ignore_text.data
             datastore.data['watching'][uuid]['ignore_text'] = form_ignore_text
 
@@ -605,24 +612,23 @@ def changedetection_app(config=None, datastore_o=None):
             datastore.data['watching'][uuid].update(form.data)
             datastore.data['watching'][uuid].update(extra_update_obj)
 
-            flash("Updated watch.")
+            if request.args.get('unpause_on_save'):
+                flash("Updated watch - unpaused!.")
+            else:
+                flash("Updated watch.")
 
             # Re #286 - We wait for syncing new data to disk in another thread every 60 seconds
             # But in the case something is added we should save straight away
             datastore.needs_write_urgent = True
 
-            # Queue the watch for immediate recheck
-            update_q.put(uuid)
+            # Queue the watch for immediate recheck, with a higher priority
+            update_q.put((1, uuid))
 
             # Diff page [edit] link should go back to diff page
-            if request.args.get("next") and request.args.get("next") == 'diff' and not form.save_and_preview_button.data:
+            if request.args.get("next") and request.args.get("next") == 'diff':
                 return redirect(url_for('diff_history_page', uuid=uuid))
-            else:
-                if form.save_and_preview_button.data:
-                    flash('You may need to reload this page to see the new content.')
-                    return redirect(url_for('preview_page', uuid=uuid))
-                else:
-                    return redirect(url_for('index'))
+
+            return redirect(url_for('index'))
 
         else:
             if request.method == 'POST' and not form.validate():
@@ -633,17 +639,27 @@ def changedetection_app(config=None, datastore_o=None):
             # Only works reliably with Playwright
             visualselector_enabled = os.getenv('PLAYWRIGHT_DRIVER_URL', False) and default['fetch_backend'] == 'html_webdriver'
 
+            # JQ is difficult to install on windows and must be manually added (outside requirements.txt)
+            jq_support = True
+            try:
+                import jq
+            except ModuleNotFoundError:
+                jq_support = False
 
             output = render_template("edit.html",
-                                     uuid=uuid,
-                                     watch=datastore.data['watching'][uuid],
-                                     form=form,
-                                     has_empty_checktime=using_default_check_time,
-                                     using_global_webdriver_wait=default['webdriver_delay'] is None,
                                      current_base_url=datastore.data['settings']['application']['base_url'],
                                      emailprefix=os.getenv('NOTIFICATION_MAIL_BUTTON_PREFIX', False),
+                                     form=form,
+                                     has_default_notification_urls=True if len(datastore.data['settings']['application']['notification_urls']) else False,
+                                     has_empty_checktime=using_default_check_time,
+                                     jq_support=jq_support,
+                                     playwright_enabled=os.getenv('PLAYWRIGHT_DRIVER_URL', False),
+                                     settings_application=datastore.data['settings']['application'],
+                                     using_global_webdriver_wait=default['webdriver_delay'] is None,
+                                     uuid=uuid,
                                      visualselector_data_is_ready=visualselector_data_is_ready,
-                                     visualselector_enabled=visualselector_enabled
+                                     visualselector_enabled=visualselector_enabled,
+                                     watch=datastore.data['watching'][uuid],
                                      )
 
         return output
@@ -655,26 +671,34 @@ def changedetection_app(config=None, datastore_o=None):
 
         default = deepcopy(datastore.data['settings'])
         if datastore.proxy_list is not None:
+            available_proxies = list(datastore.proxy_list.keys())
             # When enabled
             system_proxy = datastore.data['settings']['requests']['proxy']
             # In the case it doesnt exist anymore
-            if not any([system_proxy in tup for tup in datastore.proxy_list]):
+            if not system_proxy in available_proxies:
                 system_proxy = None
 
-            default['requests']['proxy'] = system_proxy if system_proxy is not None else datastore.proxy_list[0][0]
+            default['requests']['proxy'] = system_proxy if system_proxy is not None else available_proxies[0]
             # Used by the form handler to keep or remove the proxy settings
-            default['proxy_list'] = datastore.proxy_list
+            default['proxy_list'] = available_proxies[0]
 
 
         # Don't use form.data on POST so that it doesnt overrid the checkbox status from the POST status
         form = forms.globalSettingsForm(formdata=request.form if request.method == 'POST' else None,
                                         data=default
                                         )
+
+        # Remove the last option 'System default'
+        form.application.form.notification_format.choices.pop()
+
         if datastore.proxy_list is None:
             # @todo - Couldn't get setattr() etc dynamic addition working, so remove it instead
             del form.requests.form.proxy
         else:
-            form.requests.form.proxy.choices = datastore.proxy_list
+            form.requests.form.proxy.choices = []
+            for p in datastore.proxy_list:
+                form.requests.form.proxy.choices.append(tuple((p, datastore.proxy_list[p]['label'])))
+
 
         if request.method == 'POST':
             # Password unset is a GET, but we can lock the session to a salted env password to always need the password
@@ -687,7 +711,14 @@ def changedetection_app(config=None, datastore_o=None):
                     return redirect(url_for('settings_page'))
 
             if form.validate():
-                datastore.data['settings']['application'].update(form.data['application'])
+                # Don't set password to False when a password is set - should be only removed with the `removepassword` button
+                app_update = dict(deepcopy(form.data['application']))
+
+                # Never update password with '' or False (Added by wtforms when not in submission)
+                if 'password' in app_update and not app_update['password']:
+                    del (app_update['password'])
+
+                datastore.data['settings']['application'].update(app_update)
                 datastore.data['settings']['requests'].update(form.data['requests'])
 
                 if not os.getenv("SALTED_PASS", False) and len(form.application.form.password.encrypted_password):
@@ -708,7 +739,8 @@ def changedetection_app(config=None, datastore_o=None):
                                  current_base_url = datastore.data['settings']['application']['base_url'],
                                  hide_remove_pass=os.getenv("SALTED_PASS", False),
                                  api_key=datastore.data['settings']['application'].get('api_access_token'),
-                                 emailprefix=os.getenv('NOTIFICATION_MAIL_BUTTON_PREFIX', False))
+                                 emailprefix=os.getenv('NOTIFICATION_MAIL_BUTTON_PREFIX', False),
+                                 settings_application=datastore.data['settings']['application'])
 
         return output
 
@@ -725,7 +757,7 @@ def changedetection_app(config=None, datastore_o=None):
                 importer = import_url_list()
                 importer.run(data=request.values.get('urls'), flash=flash, datastore=datastore)
                 for uuid in importer.new_uuids:
-                    update_q.put(uuid)
+                    update_q.put((1, uuid))
 
                 if len(importer.remaining_data) == 0:
                     return redirect(url_for('index'))
@@ -738,7 +770,7 @@ def changedetection_app(config=None, datastore_o=None):
                 d_importer = import_distill_io_json()
                 d_importer.run(data=request.values.get('distill-io'), flash=flash, datastore=datastore)
                 for uuid in d_importer.new_uuids:
-                    update_q.put(uuid)
+                    update_q.put((1, uuid))
 
 
 
@@ -787,8 +819,10 @@ def changedetection_app(config=None, datastore_o=None):
 
         newest_file = history[dates[-1]]
 
+        # Read as binary and force decode as UTF-8
+        # Windows may fail decode in python if we just use 'r' mode (chardet decode exception)
         try:
-            with open(newest_file, 'r') as f:
+            with open(newest_file, 'r', encoding='utf-8', errors='ignore') as f:
                 newest_version_file_contents = f.read()
         except Exception as e:
             newest_version_file_contents = "Unable to read {}.\n".format(newest_file)
@@ -801,13 +835,13 @@ def changedetection_app(config=None, datastore_o=None):
             previous_file = history[dates[-2]]
 
         try:
-            with open(previous_file, 'r') as f:
+            with open(previous_file, 'r', encoding='utf-8', errors='ignore') as f:
                 previous_version_file_contents = f.read()
         except Exception as e:
             previous_version_file_contents = "Unable to read {}.\n".format(previous_file)
 
 
-        screenshot_url = datastore.get_screenshot(uuid)
+        screenshot_url = watch.get_screenshot()
 
         system_uses_webdriver = datastore.data['settings']['application']['fetch_backend'] == 'html_webdriver'
 
@@ -819,7 +853,7 @@ def changedetection_app(config=None, datastore_o=None):
                                  newest=newest_version_file_contents,
                                  previous=previous_version_file_contents,
                                  extra_stylesheets=extra_stylesheets,
-                                 versions=dates[1:],
+                                 versions=dates[:-1], # All except current/last
                                  uuid=uuid,
                                  newest_version_timestamp=dates[-1],
                                  current_previous_version=str(previous_version),
@@ -827,7 +861,11 @@ def changedetection_app(config=None, datastore_o=None):
                                  extra_title=" - Diff - {}".format(watch['title'] if watch['title'] else watch['url']),
                                  left_sticky=True,
                                  screenshot=screenshot_url,
-                                 is_html_webdriver=is_html_webdriver)
+                                 is_html_webdriver=is_html_webdriver,
+                                 last_error=watch['last_error'],
+                                 last_error_text=watch.get_error_text(),
+                                 last_error_screenshot=watch.get_error_snapshot()
+                                 )
 
         return output
 
@@ -842,67 +880,82 @@ def changedetection_app(config=None, datastore_o=None):
         if uuid == 'first':
             uuid = list(datastore.data['watching'].keys()).pop()
 
-        extra_stylesheets = [url_for('static_content', group='styles', filename='diff.css')]
-
         try:
             watch = datastore.data['watching'][uuid]
         except KeyError:
             flash("No history found for the specified link, bad link?", "error")
             return redirect(url_for('index'))
 
-        if watch.history_n >0:
-            timestamps = sorted(watch.history.keys(), key=lambda x: int(x))
-            filename = watch.history[timestamps[-1]]
-            try:
-                with open(filename, 'r') as f:
-                    tmp = f.readlines()
-
-                    # Get what needs to be highlighted
-                    ignore_rules = watch.get('ignore_text', []) + datastore.data['settings']['application']['global_ignore_text']
-
-                    # .readlines will keep the \n, but we will parse it here again, in the future tidy this up
-                    ignored_line_numbers = html_tools.strip_ignore_text(content="".join(tmp),
-                                                                        wordlist=ignore_rules,
-                                                                        mode='line numbers'
-                                                                        )
-
-                    trigger_line_numbers = html_tools.strip_ignore_text(content="".join(tmp),
-                                                                        wordlist=watch['trigger_text'],
-                                                                        mode='line numbers'
-                                                                        )
-                    # Prepare the classes and lines used in the template
-                    i=0
-                    for l in tmp:
-                        classes=[]
-                        i+=1
-                        if i in ignored_line_numbers:
-                            classes.append('ignored')
-                        if i in trigger_line_numbers:
-                            classes.append('triggered')
-                        content.append({'line': l, 'classes': ' '.join(classes)})
-
-
-            except Exception as e:
-                content.append({'line': "File doesnt exist or unable to read file {}".format(filename), 'classes': ''})
-        else:
-            content.append({'line': "No history found", 'classes': ''})
-
-        screenshot_url = datastore.get_screenshot(uuid)
         system_uses_webdriver = datastore.data['settings']['application']['fetch_backend'] == 'html_webdriver'
+        extra_stylesheets = [url_for('static_content', group='styles', filename='diff.css')]
+
 
         is_html_webdriver = True if watch.get('fetch_backend') == 'html_webdriver' or (
                 watch.get('fetch_backend', None) is None and system_uses_webdriver) else False
 
+        # Never requested successfully, but we detected a fetch error
+        if datastore.data['watching'][uuid].history_n == 0 and (watch.get_error_text() or watch.get_error_snapshot()):
+            flash("Preview unavailable - No fetch/check completed or triggers not reached", "error")
+            output = render_template("preview.html",
+                                     content=content,
+                                     history_n=watch.history_n,
+                                     extra_stylesheets=extra_stylesheets,
+#                                     current_diff_url=watch['url'],
+                                     watch=watch,
+                                     uuid=uuid,
+                                     is_html_webdriver=is_html_webdriver,
+                                     last_error=watch['last_error'],
+                                     last_error_text=watch.get_error_text(),
+                                     last_error_screenshot=watch.get_error_snapshot())
+            return output
+
+        timestamp = list(watch.history.keys())[-1]
+        filename = watch.history[timestamp]
+        try:
+            with open(filename, 'r', encoding='utf-8', errors='ignore') as f:
+                tmp = f.readlines()
+
+                # Get what needs to be highlighted
+                ignore_rules = watch.get('ignore_text', []) + datastore.data['settings']['application']['global_ignore_text']
+
+                # .readlines will keep the \n, but we will parse it here again, in the future tidy this up
+                ignored_line_numbers = html_tools.strip_ignore_text(content="".join(tmp),
+                                                                    wordlist=ignore_rules,
+                                                                    mode='line numbers'
+                                                                    )
+
+                trigger_line_numbers = html_tools.strip_ignore_text(content="".join(tmp),
+                                                                    wordlist=watch['trigger_text'],
+                                                                    mode='line numbers'
+                                                                    )
+                # Prepare the classes and lines used in the template
+                i=0
+                for l in tmp:
+                    classes=[]
+                    i+=1
+                    if i in ignored_line_numbers:
+                        classes.append('ignored')
+                    if i in trigger_line_numbers:
+                        classes.append('triggered')
+                    content.append({'line': l, 'classes': ' '.join(classes)})
+
+        except Exception as e:
+            content.append({'line': "File doesnt exist or unable to read file {}".format(filename), 'classes': ''})
+
         output = render_template("preview.html",
                                  content=content,
+                                 history_n=watch.history_n,
                                  extra_stylesheets=extra_stylesheets,
                                  ignored_line_numbers=ignored_line_numbers,
                                  triggered_line_numbers=trigger_line_numbers,
                                  current_diff_url=watch['url'],
-                                 screenshot=screenshot_url,
+                                 screenshot=watch.get_screenshot(),
                                  watch=watch,
                                  uuid=uuid,
-                                 is_html_webdriver=is_html_webdriver)
+                                 is_html_webdriver=is_html_webdriver,
+                                 last_error=watch['last_error'],
+                                 last_error_text=watch.get_error_text(),
+                                 last_error_screenshot=watch.get_error_snapshot())
 
         return output
 
@@ -911,7 +964,7 @@ def changedetection_app(config=None, datastore_o=None):
     def notification_logs():
         global notification_debug_log
         output = render_template("notification-log.html",
-                                 logs=notification_debug_log if len(notification_debug_log) else ["No errors or warnings detected"])
+                                 logs=notification_debug_log if len(notification_debug_log) else ["Notification logs are empty - no notifications sent yet."])
 
         return output
 
@@ -934,9 +987,6 @@ def changedetection_app(config=None, datastore_o=None):
 
         # create a ZipFile object
         backupname = "changedetection-backup-{}.zip".format(int(time.time()))
-
-        # We only care about UUIDS from the current index file
-        uuids = list(datastore.data['watching'].keys())
         backup_filepath = os.path.join(datastore_o.datastore_path, backupname)
 
         with zipfile.ZipFile(backup_filepath, "w",
@@ -952,12 +1002,12 @@ def changedetection_app(config=None, datastore_o=None):
             # Add the flask app secret
             zipObj.write(os.path.join(datastore_o.datastore_path, "secret.txt"), arcname="secret.txt")
 
-            # Add any snapshot data we find, use the full path to access the file, but make the file 'relative' in the Zip.
-            for txt_file_path in Path(datastore_o.datastore_path).rglob('*.txt'):
-                parent_p = txt_file_path.parent
-                if parent_p.name in uuids:
-                    zipObj.write(txt_file_path,
-                                 arcname=str(txt_file_path).replace(datastore_o.datastore_path, ''),
+            # Add any data in the watch data directory.
+            for uuid, w in datastore.data['watching'].items():
+                for f in Path(w.watch_data_dir).glob('*'):
+                    zipObj.write(f,
+                                 # Use the full path to access the file, but make the file 'relative' in the Zip.
+                                 arcname=os.path.join(f.parts[-2], f.parts[-1]),
                                  compress_type=zipfile.ZIP_DEFLATED,
                                  compresslevel=8)
 
@@ -1002,11 +1052,12 @@ def changedetection_app(config=None, datastore_o=None):
             if datastore.data['settings']['application']['password'] and not flask_login.current_user.is_authenticated:
                 abort(403)
 
+            screenshot_filename = "last-screenshot.png" if not request.args.get('error_screenshot') else "last-error-screenshot.png"
+
             # These files should be in our subdirectory
             try:
                 # set nocache, set content-type
-                watch_dir = datastore_o.datastore_path + "/" + filename
-                response = make_response(send_from_directory(filename="last-screenshot.png", directory=watch_dir, path=watch_dir + "/last-screenshot.png"))
+                response = make_response(send_from_directory(os.path.join(datastore_o.datastore_path, filename), screenshot_filename))
                 response.headers['Content-type'] = 'image/png'
                 response.headers['Cache-Control'] = 'no-cache, no-store, must-revalidate'
                 response.headers['Pragma'] = 'no-cache'
@@ -1042,9 +1093,9 @@ def changedetection_app(config=None, datastore_o=None):
         except FileNotFoundError:
             abort(404)
 
-    @app.route("/api/add", methods=['POST'])
+    @app.route("/form/add/quickwatch", methods=['POST'])
     @login_required
-    def form_watch_add():
+    def form_quick_watch_add():
         from changedetectionio import forms
         form = forms.quickWatchForm(request.form)
 
@@ -1057,13 +1108,19 @@ def changedetection_app(config=None, datastore_o=None):
             flash('The URL {} already exists'.format(url), "error")
             return redirect(url_for('index'))
 
-        # @todo add_watch should throw a custom Exception for validation etc
-        new_uuid = datastore.add_watch(url=url, tag=request.form.get('tag').strip())
-        if new_uuid:
+        add_paused = request.form.get('edit_and_watch_submit_button') != None
+        new_uuid = datastore.add_watch(url=url, tag=request.form.get('tag').strip(), extras={'paused': add_paused})
+
+
+        if not add_paused and new_uuid:
             # Straight into the queue.
-            update_q.put(new_uuid)
+            update_q.put((1, new_uuid))
             flash("Watch added.")
 
+        if add_paused:
+            flash('Watch added in Paused state, saving will unpause.')
+            return redirect(url_for('edit_page', uuid=new_uuid, unpause_on_save=1))
+
         return redirect(url_for('index'))
 
 
@@ -1094,7 +1151,7 @@ def changedetection_app(config=None, datastore_o=None):
             uuid = list(datastore.data['watching'].keys()).pop()
 
         new_uuid = datastore.clone(uuid)
-        update_q.put(new_uuid)
+        update_q.put((5, new_uuid))
         flash('Cloned.')
 
         return redirect(url_for('index'))
@@ -1115,7 +1172,7 @@ def changedetection_app(config=None, datastore_o=None):
 
         if uuid:
             if uuid not in running_uuids:
-                update_q.put(uuid)
+                update_q.put((1, uuid))
             i = 1
 
         elif tag != None:
@@ -1123,7 +1180,7 @@ def changedetection_app(config=None, datastore_o=None):
             for watch_uuid, watch in datastore.data['watching'].items():
                 if (tag != None and tag in watch['tag']):
                     if watch_uuid not in running_uuids and not datastore.data['watching'][watch_uuid]['paused']:
-                        update_q.put(watch_uuid)
+                        update_q.put((1, watch_uuid))
                         i += 1
 
         else:
@@ -1131,11 +1188,68 @@ def changedetection_app(config=None, datastore_o=None):
             for watch_uuid, watch in datastore.data['watching'].items():
 
                 if watch_uuid not in running_uuids and not datastore.data['watching'][watch_uuid]['paused']:
-                    update_q.put(watch_uuid)
+                    update_q.put((1, watch_uuid))
                     i += 1
         flash("{} watches are queued for rechecking.".format(i))
         return redirect(url_for('index', tag=tag))
 
+    @app.route("/form/checkbox-operations", methods=['POST'])
+    @login_required
+    def form_watch_list_checkbox_operations():
+        op = request.form['op']
+        uuids = request.form.getlist('uuids')
+
+        if (op == 'delete'):
+            for uuid in uuids:
+                uuid = uuid.strip()
+                if datastore.data['watching'].get(uuid):
+                    datastore.delete(uuid.strip())
+            flash("{} watches deleted".format(len(uuids)))
+
+        elif (op == 'pause'):
+            for uuid in uuids:
+                uuid = uuid.strip()
+                if datastore.data['watching'].get(uuid):
+                    datastore.data['watching'][uuid.strip()]['paused'] = True
+
+            flash("{} watches paused".format(len(uuids)))
+
+        elif (op == 'unpause'):
+            for uuid in uuids:
+                uuid = uuid.strip()
+                if datastore.data['watching'].get(uuid):
+                    datastore.data['watching'][uuid.strip()]['paused'] = False
+            flash("{} watches unpaused".format(len(uuids)))
+
+        elif (op == 'mute'):
+            for uuid in uuids:
+                uuid = uuid.strip()
+                if datastore.data['watching'].get(uuid):
+                    datastore.data['watching'][uuid.strip()]['notification_muted'] = True
+            flash("{} watches muted".format(len(uuids)))
+
+        elif (op == 'unmute'):
+            for uuid in uuids:
+                uuid = uuid.strip()
+                if datastore.data['watching'].get(uuid):
+                    datastore.data['watching'][uuid.strip()]['notification_muted'] = False
+            flash("{} watches un-muted".format(len(uuids)))
+
+        elif (op == 'notification-default'):
+            from changedetectionio.notification import (
+                default_notification_format_for_watch
+            )
+            for uuid in uuids:
+                uuid = uuid.strip()
+                if datastore.data['watching'].get(uuid):
+                    datastore.data['watching'][uuid.strip()]['notification_title'] = None
+                    datastore.data['watching'][uuid.strip()]['notification_body'] = None
+                    datastore.data['watching'][uuid.strip()]['notification_urls'] = []
+                    datastore.data['watching'][uuid.strip()]['notification_format'] = default_notification_format_for_watch
+            flash("{} watches set to use default notification settings".format(len(uuids)))
+
+        return redirect(url_for('index'))
+
     @app.route("/api/share-url", methods=['GET'])
     @login_required
     def form_share_put_watch():
@@ -1182,7 +1296,8 @@ def changedetection_app(config=None, datastore_o=None):
 
 
         except Exception as e:
-            flash("Could not share, something went wrong while communicating with the share server.", 'error')
+            logging.error("Error sharing -{}".format(str(e)))
+            flash("Could not share, something went wrong while communicating with the share server - {}".format(str(e)), 'error')
 
         # https://changedetection.io/share/VrMv05wpXyQa
         # in the browser - should give you a nice info page - wtf
@@ -1230,6 +1345,8 @@ def check_for_new_version():
 
 def notification_runner():
     global notification_debug_log
+    from datetime import datetime
+    import json
     while not app.config.exit.is_set():
         try:
             # At the moment only one thread runs (single runner)
@@ -1238,13 +1355,17 @@ def notification_runner():
             time.sleep(1)
 
         else:
-            # Process notifications
+
+            now = datetime.now()
+            sent_obj = None
+
             try:
                 from changedetectionio import notification
-                notification.process_notification(n_object, datastore)
+
+                sent_obj = notification.process_notification(n_object, datastore)
 
             except Exception as e:
-                print("Watch URL: {}  Error {}".format(n_object['watch_url'], str(e)))
+                logging.error("Watch URL: {}  Error {}".format(n_object['watch_url'], str(e)))
 
                 # UUID wont be present when we submit a 'test' from the global settings
                 if 'uuid' in n_object:
@@ -1254,14 +1375,20 @@ def notification_runner():
                 log_lines = str(e).splitlines()
                 notification_debug_log += log_lines
 
-                # Trim the log length
-                notification_debug_log = notification_debug_log[-100:]
-
+            # Process notifications
+            notification_debug_log+= ["{} - SENDING - {}".format(now.strftime("%Y/%m/%d %H:%M:%S,000"), json.dumps(sent_obj))]
+            # Trim the log length
+            notification_debug_log = notification_debug_log[-100:]
 
 # Thread runner to check every minute, look for new watches to feed into the Queue.
 def ticker_thread_check_time_launch_checks():
+    import random
     from changedetectionio import update_worker
-    import logging
+
+    proxy_last_called_time = {}
+
+    recheck_time_minimum_seconds = int(os.getenv('MINIMUM_SECONDS_RECHECK_TIME', 20))
+    print("System env MINIMUM_SECONDS_RECHECK_TIME", recheck_time_minimum_seconds)
 
     # Spin up Workers that do the fetching
     # Can be overriden by ENV or use the default settings
@@ -1294,14 +1421,12 @@ def ticker_thread_check_time_launch_checks():
         while update_q.qsize() >= 2000:
             time.sleep(1)
 
+
+        recheck_time_system_seconds = int(datastore.threshold_seconds)
+
         # Check for watches outside of the time threshold to put in the thread queue.
-        now = time.time()
-
-        recheck_time_minimum_seconds = int(os.getenv('MINIMUM_SECONDS_RECHECK_TIME', 60))
-        recheck_time_system_seconds = datastore.threshold_seconds
-
         for uuid in watch_uuid_list:
-
+            now = time.time()
             watch = datastore.data['watching'].get(uuid)
             if not watch:
                 logging.error("Watch: {} no longer present.".format(uuid))
@@ -1312,20 +1437,58 @@ def ticker_thread_check_time_launch_checks():
                 continue
 
             # If they supplied an individual entry minutes to threshold.
-            threshold = now
+
             watch_threshold_seconds = watch.threshold_seconds()
-            if watch_threshold_seconds:
-                threshold -= watch_threshold_seconds
-            else:
-                threshold -= recheck_time_system_seconds
+            threshold = watch_threshold_seconds if watch_threshold_seconds > 0 else recheck_time_system_seconds
 
-            # Yeah, put it in the queue, it's more than time
-            if watch['last_checked'] <= max(threshold, recheck_time_minimum_seconds):
-                if not uuid in running_uuids and uuid not in update_q.queue:
-                    update_q.put(uuid)
+            # #580 - Jitter plus/minus amount of time to make the check seem more random to the server
+            jitter = datastore.data['settings']['requests'].get('jitter_seconds', 0)
+            if jitter > 0:
+                if watch.jitter_seconds == 0:
+                    watch.jitter_seconds = random.uniform(-abs(jitter), jitter)
 
-        # Wait a few seconds before checking the list again
-        time.sleep(3)
+            seconds_since_last_recheck = now - watch['last_checked']
+
+            if seconds_since_last_recheck >= (threshold + watch.jitter_seconds) and seconds_since_last_recheck >= recheck_time_minimum_seconds:
+                if not uuid in running_uuids and uuid not in [q_uuid for p,q_uuid in update_q.queue]:
+
+                    # Proxies can be set to have a limit on seconds between which they can be called
+                    watch_proxy = datastore.get_preferred_proxy_for_watch(uuid=uuid)
+                    if watch_proxy and watch_proxy in list(datastore.proxy_list.keys()):
+                        # Proxy may also have some threshold minimum
+                        proxy_list_reuse_time_minimum = int(datastore.proxy_list.get(watch_proxy, {}).get('reuse_time_minimum', 0))
+                        if proxy_list_reuse_time_minimum:
+                            proxy_last_used_time = proxy_last_called_time.get(watch_proxy, 0)
+                            time_since_proxy_used = int(time.time() - proxy_last_used_time)
+                            if time_since_proxy_used < proxy_list_reuse_time_minimum:
+                                # Not enough time difference reached, skip this watch
+                                print("> Skipped UUID {} using proxy '{}', not enough time between proxy requests {}s/{}s".format(uuid,
+                                                                                                                         watch_proxy,
+                                                                                                                         time_since_proxy_used,
+                                                                                                                         proxy_list_reuse_time_minimum))
+                                continue
+                            else:
+                                # Record the last used time
+                                proxy_last_called_time[watch_proxy] = int(time.time())
+
+                    # Use Epoch time as priority, so we get a "sorted" PriorityQueue, but we can still push a priority 1 into it.
+                    priority = int(time.time())
+                    print(
+                        "> Queued watch UUID {} last checked at {} queued at {:0.2f} priority {} jitter {:0.2f}s, {:0.2f}s since last checked".format(
+                            uuid,
+                            watch['last_checked'],
+                            now,
+                            priority,
+                            watch.jitter_seconds,
+                            now - watch['last_checked']))
+                    # Into the queue with you
+                    update_q.put((priority, uuid))
+
+                    # Reset for next time
+                    watch.jitter_seconds = 0
+
+        # Wait before checking the list again - saves CPU
+        time.sleep(1)
 
         # Should be low so we can break this out in testing
-        app.config.exit.wait(1)
+        app.config.exit.wait(1)

changedetectionio/api/api_v1.py

@@ -24,7 +24,7 @@ class Watch(Resource):
             abort(404, message='No watch exists with the UUID of {}'.format(uuid))
 
         if request.args.get('recheck'):
-            self.update_q.put(uuid)
+            self.update_q.put((1, uuid))
             return "OK", 200
 
         # Return without history, get that via another API call
@@ -100,7 +100,7 @@ class CreateWatch(Resource):
         extras = {'title': json_data['title'].strip()} if json_data.get('title') else {}
 
         new_uuid = self.datastore.add_watch(url=json_data['url'].strip(), tag=tag, extras=extras)
-        self.update_q.put(new_uuid)
+        self.update_q.put((1, new_uuid))
         return {'uuid': new_uuid}, 201
 
     # Return concise list of available watches and some very basic info
@@ -113,12 +113,46 @@ class CreateWatch(Resource):
             list[k] = {'url': v['url'],
                        'title': v['title'],
                        'last_checked': v['last_checked'],
-                       'last_changed': v['last_changed'],
+                       'last_changed': v.last_changed,
                        'last_error': v['last_error']}
 
         if request.args.get('recheck_all'):
             for uuid in self.datastore.data['watching'].keys():
-                self.update_q.put(uuid)
+                self.update_q.put((1, uuid))
             return {'status': "OK"}, 200
 
         return list, 200
+
+class SystemInfo(Resource):
+    def __init__(self, **kwargs):
+        # datastore is a black box dependency
+        self.datastore = kwargs['datastore']
+        self.update_q = kwargs['update_q']
+
+    @auth.check_token
+    def get(self):
+        import time
+        overdue_watches = []
+
+        # Check all watches and report which have not been checked but should have been
+
+        for uuid, watch in self.datastore.data.get('watching', {}).items():
+            # see if now - last_checked is greater than the time that should have been
+            # this is not super accurate (maybe they just edited it) but better than nothing
+            t = watch.threshold_seconds()
+            if not t:
+                # Use the system wide default
+                t = self.datastore.threshold_seconds
+
+            time_since_check = time.time() - watch.get('last_checked')
+
+            # Allow 5 minutes of grace time before we decide it's overdue
+            if time_since_check - (5 * 60) > t:
+                overdue_watches.append(uuid)
+
+        return {
+                   'queue_size': self.update_q.qsize(),
+                   'overdue_watches': overdue_watches,
+                   'uptime': round(time.time() - self.datastore.start_time, 2),
+                   'watch_count': len(self.datastore.data.get('watching', {}))
+               }, 200

changedetectionio/apprise_asset.py

@@ -0,0 +1,11 @@
+import apprise
+
+# Create our AppriseAsset and populate it with some of our new values:
+# https://github.com/caronc/apprise/wiki/Development_API#the-apprise-asset-object
+asset = apprise.AppriseAsset(
+   image_url_logo='https://raw.githubusercontent.com/dgtlmoon/changedetection.io/master/changedetectionio/static/images/avatar-256x256.png'
+)
+
+asset.app_id = "changedetection.io"
+asset.app_desc = "ChangeDetection.io best and simplest website monitoring and change detection"
+asset.app_url = "https://changedetection.io"

changedetectionio/changedetection.py

@@ -4,6 +4,7 @@
 
 import getopt
 import os
+import signal
 import sys
 
 import eventlet
@@ -11,7 +12,21 @@ import eventlet.wsgi
 from . import store, changedetection_app, content_fetcher
 from . import __version__
 
+# Only global so we can access it in the signal handler
+datastore = None
+app = None
+
+def sigterm_handler(_signo, _stack_frame):
+    global app
+    global datastore
+#    app.config.exit.set()
+    print('Shutdown: Got SIGTERM, DB saved to disk')
+    datastore.sync_to_json()
+#    raise SystemExit
+
 def main():
+    global datastore
+    global app
     ssl_mode = False
     host = ''
     port = os.environ.get('PORT') or 5000
@@ -35,11 +50,6 @@ def main():
     create_datastore_dir = False
 
     for opt, arg in opts:
-        #        if opt == '--purge':
-        # Remove history, the actual files you need to delete manually.
-        #            for uuid, watch in datastore.data['watching'].items():
-        #                watch.update({'history': {}, 'last_checked': 0, 'last_changed': 0, 'previous_md5': None})
-
         if opt == '-s':
             ssl_mode = True
 
@@ -72,9 +82,12 @@ def main():
                 "Or use the -C parameter to create the directory.".format(app_config['datastore_path']), file=sys.stderr)
             sys.exit(2)
 
+
     datastore = store.ChangeDetectionStore(datastore_path=app_config['datastore_path'], version_tag=__version__)
     app = changedetection_app(app_config, datastore)
 
+    signal.signal(signal.SIGTERM, sigterm_handler)
+
     # Go into cleanup mode
     if do_cleanup:
         datastore.remove_unused_snapshots()
@@ -89,6 +102,14 @@ def main():
                     has_password=datastore.data['settings']['application']['password'] != False
                     )
 
+    # Monitored websites will not receive a Referer header
+    # when a user clicks on an outgoing link.
+    @app.after_request
+    def hide_referrer(response):
+        if os.getenv("HIDE_REFERER", False):
+            response.headers["Referrer-Policy"] = "no-referrer"
+        return response
+
     # Proxy sub-directory support
     # Set environment var USE_X_SETTINGS=1 on this script
     # And then in your proxy_pass settings
@@ -111,4 +132,3 @@ def main():
     else:
         eventlet.wsgi.server(eventlet.listen((host, int(port))), app)
 
-

changedetectionio/content_fetcher.py

@@ -6,38 +6,64 @@ import requests
 import time
 import sys
 
-class PageUnloadable(Exception):
-    def __init__(self, status_code, url):
+
+class Non200ErrorCodeReceived(Exception):
+    def __init__(self, status_code, url, screenshot=None, xpath_data=None, page_html=None):
         # Set this so we can use it in other parts of the app
         self.status_code = status_code
         self.url = url
+        self.screenshot = screenshot
+        self.xpath_data = xpath_data
+        self.page_text = None
+
+        if page_html:
+            from changedetectionio import html_tools
+            self.page_text = html_tools.html_to_text(page_html)
+        return
+
+
+class JSActionExceptions(Exception):
+    def __init__(self, status_code, url, screenshot, message=''):
+        self.status_code = status_code
+        self.url = url
+        self.screenshot = screenshot
+        self.message = message
+        return
+
+class PageUnloadable(Exception):
+    def __init__(self, status_code, url, screenshot=False, message=False):
+        # Set this so we can use it in other parts of the app
+        self.status_code = status_code
+        self.url = url
+        self.screenshot = screenshot
+        self.message = message
         return
-    pass
 
 class EmptyReply(Exception):
-    def __init__(self, status_code, url):
+    def __init__(self, status_code, url, screenshot=None):
         # Set this so we can use it in other parts of the app
         self.status_code = status_code
         self.url = url
+        self.screenshot = screenshot
         return
-    pass
 
 class ScreenshotUnavailable(Exception):
-    def __init__(self, status_code, url):
+    def __init__(self, status_code, url, page_html=None):
         # Set this so we can use it in other parts of the app
         self.status_code = status_code
         self.url = url
+        if page_html:
+            from html_tools import html_to_text
+            self.page_text = html_to_text(page_html)
         return
-    pass
 
 class ReplyWithContentButNoText(Exception):
-    def __init__(self, status_code, url):
+    def __init__(self, status_code, url, screenshot=None):
         # Set this so we can use it in other parts of the app
         self.status_code = status_code
         self.url = url
+        self.screenshot = screenshot
         return
-    pass
-
 
 class Fetcher():
     error = None
@@ -46,6 +72,7 @@ class Fetcher():
     headers = None
 
     fetcher_description = "No description"
+    webdriver_js_execute_code = None
     xpath_element_js = """               
                 // Include the getXpath script directly, easier than fetching
                 !function(e,n){"object"==typeof exports&&"undefined"!=typeof module?module.exports=n():"function"==typeof define&&define.amd?define(n):(e=e||self).getXPath=n()}(this,function(){return function(e){var n=e;if(n&&n.id)return'//*[@id="'+n.id+'"]';for(var o=[];n&&Node.ELEMENT_NODE===n.nodeType;){for(var i=0,r=!1,d=n.previousSibling;d;)d.nodeType!==Node.DOCUMENT_TYPE_NODE&&d.nodeName===n.nodeName&&i++,d=d.previousSibling;for(d=n.nextSibling;d;){if(d.nodeName===n.nodeName){r=!0;break}d=d.nextSibling}o.push((n.prefix?n.prefix+":":"")+n.localName+(i||r?"["+(i+1)+"]":"")),n=n.parentNode}return o.length?"/"+o.reverse().join("/"):""}});
@@ -62,12 +89,12 @@ class Fetcher():
                       break;
                     }
                     if('' !==r.id) {
-                      chained_css.unshift("#"+r.id);
-                      final_selector= chained_css.join('>');
+                      chained_css.unshift("#"+CSS.escape(r.id));
+                      final_selector= chained_css.join(' > ');
                       // Be sure theres only one, some sites have multiples of the same ID tag :-(
                       if (window.document.querySelectorAll(final_selector).length ==1 ) {
                         return final_selector;
-                      }
+                        }
                       return null;
                     } else {
                       chained_css.unshift(r.tagName.toLowerCase());
@@ -175,12 +202,11 @@ class Fetcher():
 
     # Will be needed in the future by the VisualSelector, always get this where possible.
     screenshot = False
-    fetcher_description = "No description"
     system_http_proxy = os.getenv('HTTP_PROXY')
     system_https_proxy = os.getenv('HTTPS_PROXY')
 
     # Time ONTOP of the system defined env minimum time
-    render_extract_delay=0
+    render_extract_delay = 0
 
     @abstractmethod
     def get_error(self):
@@ -267,7 +293,15 @@ class base_html_playwright(Fetcher):
 
         # allow per-watch proxy selection override
         if proxy_override:
-            self.proxy = {'server': proxy_override}
+            # https://playwright.dev/docs/network#http-proxy
+            from urllib.parse import urlparse
+            parsed = urlparse(proxy_override)
+            proxy_url = "{}://{}:{}".format(parsed.scheme, parsed.hostname, parsed.port)
+            self.proxy = {'server': proxy_url}
+            if parsed.username:
+                self.proxy['username'] = parsed.username
+            if parsed.password:
+                self.proxy['password'] = parsed.password
 
     def run(self,
             url,
@@ -281,13 +315,15 @@ class base_html_playwright(Fetcher):
         from playwright.sync_api import sync_playwright
         import playwright._impl._api_types
         from playwright._impl._api_types import Error, TimeoutError
+        response = None
 
         with sync_playwright() as p:
             browser_type = getattr(p, self.browser_type)
 
             # Seemed to cause a connection Exception even tho I can see it connect
             # self.browser = browser_type.connect(self.command_executor, timeout=timeout*1000)
-            browser = browser_type.connect_over_cdp(self.command_executor, timeout=timeout * 1000)
+            # 60,000 connection timeout only
+            browser = browser_type.connect_over_cdp(self.command_executor, timeout=60000)
 
             # Set user agent to prevent Cloudflare from blocking the browser
             # Use the default one configured in the App.py model that's passed from fetch_site_status.py
@@ -300,40 +336,81 @@ class base_html_playwright(Fetcher):
                 accept_downloads=False
             )
 
+            if len(request_headers):
+                context.set_extra_http_headers(request_headers)
+
             page = context.new_page()
             try:
-               # Bug - never set viewport size BEFORE page.goto
-                response = page.goto(url, timeout=timeout * 1000, wait_until='commit')
-                # Wait_until = commit
-                # - `'commit'` - consider operation to be finished when network response is received and the document started loading.
-                # Better to not use any smarts from Playwright and just wait an arbitrary number of seconds
-                # This seemed to solve nearly all 'TimeoutErrors'
-                extra_wait = int(os.getenv("WEBDRIVER_DELAY_BEFORE_CONTENT_READY", 5)) + self.render_extract_delay
-                page.wait_for_timeout(extra_wait * 1000)
+                page.set_default_navigation_timeout(90000)
+                page.set_default_timeout(90000)
+
+                # Listen for all console events and handle errors
+                page.on("console", lambda msg: print(f"Playwright console: Watch URL: {url} {msg.type}: {msg.text} {msg.args}"))
+
+                # Bug - never set viewport size BEFORE page.goto
+
+                # Waits for the next navigation. Using Python context manager
+                # prevents a race condition between clicking and waiting for a navigation.
+                with page.expect_navigation():
+                    response = page.goto(url, wait_until='load')
+
+
             except playwright._impl._api_types.TimeoutError as e:
                 context.close()
                 browser.close()
-                raise EmptyReply(url=url, status_code=None)
+                # This can be ok, we will try to grab what we could retrieve
+                pass
+
             except Exception as e:
+                print("other exception when page.goto")
+                print(str(e))
                 context.close()
                 browser.close()
-                raise PageUnloadable(url=url, status_code=None)
+                raise PageUnloadable(url=url, status_code=None, message=e.message)
 
             if response is None:
                 context.close()
                 browser.close()
+                print("response object was none")
                 raise EmptyReply(url=url, status_code=None)
 
-            if len(page.content().strip()) == 0:
-                context.close()
-                browser.close()
-                raise EmptyReply(url=url, status_code=None)
 
-            # Bug 2(?) Set the viewport size AFTER loading the page
-            page.set_viewport_size({"width": 1280, "height": 1024})
+            # Removed browser-set-size, seemed to be needed to make screenshots work reliably in older playwright versions
+            # Was causing exceptions like 'waiting for page but content is changing' etc
+            # https://www.browserstack.com/docs/automate/playwright/change-browser-window-size 1280x720 should be the default
+                        
+            extra_wait = int(os.getenv("WEBDRIVER_DELAY_BEFORE_CONTENT_READY", 5)) + self.render_extract_delay
+            time.sleep(extra_wait)
+
+            if self.webdriver_js_execute_code is not None:
+                try:
+                    page.evaluate(self.webdriver_js_execute_code)
+                except Exception as e:
+                    # Is it possible to get a screenshot?
+                    error_screenshot = False
+                    try:
+                        page.screenshot(type='jpeg',
+                                        clip={'x': 1.0, 'y': 1.0, 'width': 1280, 'height': 1024},
+                                        quality=1)
+
+                        # The actual screenshot
+                        error_screenshot = page.screenshot(type='jpeg',
+                                                           full_page=True,
+                                                           quality=int(os.getenv("PLAYWRIGHT_SCREENSHOT_QUALITY", 72)))
+                    except Exception as s:
+                        pass
+
+                    raise JSActionExceptions(status_code=response.status, screenshot=error_screenshot, message=str(e), url=url)
+
+                else:
+                    # JS eval was run, now we also wait some time if possible to let the page settle
+                    if self.render_extract_delay:
+                        page.wait_for_timeout(self.render_extract_delay * 1000)
+
+            page.wait_for_timeout(500)
 
-            self.status_code = response.status
             self.content = page.content()
+            self.status_code = response.status
             self.headers = response.all_headers()
 
             if current_css_filter is not None:
@@ -346,17 +423,31 @@ class base_html_playwright(Fetcher):
             # Bug 3 in Playwright screenshot handling
             # Some bug where it gives the wrong screenshot size, but making a request with the clip set first seems to solve it
             # JPEG is better here because the screenshots can be very very large
+
+            # Screenshots also travel via the ws:// (websocket) meaning that the binary data is base64 encoded
+            # which will significantly increase the IO size between the server and client, it's recommended to use the lowest
+            # acceptable screenshot quality here
             try:
-                page.screenshot(type='jpeg', clip={'x': 1.0, 'y': 1.0, 'width': 1280, 'height': 1024})
-                self.screenshot = page.screenshot(type='jpeg', full_page=True, quality=92)
+                # Quality set to 1 because it's not used, just used as a work-around for a bug, no need to change this.
+                page.screenshot(type='jpeg', clip={'x': 1.0, 'y': 1.0, 'width': 1280, 'height': 1024}, quality=1)
+                # The actual screenshot
+                self.screenshot = page.screenshot(type='jpeg', full_page=True, quality=int(os.getenv("PLAYWRIGHT_SCREENSHOT_QUALITY", 72)))
             except Exception as e:
                 context.close()
                 browser.close()
                 raise ScreenshotUnavailable(url=url, status_code=None)
 
+            if len(self.content.strip()) == 0:
+                context.close()
+                browser.close()
+                print("Content was empty")
+                raise EmptyReply(url=url, status_code=None, screenshot=self.screenshot)
+
             context.close()
             browser.close()
 
+            if not ignore_status_codes and self.status_code!=200:
+                raise Non200ErrorCodeReceived(url=url, status_code=self.status_code, page_html=self.content, screenshot=self.screenshot)
 
 class base_html_webdriver(Fetcher):
     if os.getenv("WEBDRIVER_URL"):
@@ -428,7 +519,11 @@ class base_html_webdriver(Fetcher):
 
         self.driver.set_window_size(1280, 1024)
         self.driver.implicitly_wait(int(os.getenv("WEBDRIVER_DELAY_BEFORE_CONTENT_READY", 5)))
-        self.screenshot = self.driver.get_screenshot_as_png()
+
+        if self.webdriver_js_execute_code is not None:
+            self.driver.execute_script(self.webdriver_js_execute_code)
+            # Selenium doesn't automatically wait for actions as good as Playwright, so wait again
+            self.driver.implicitly_wait(int(os.getenv("WEBDRIVER_DELAY_BEFORE_CONTENT_READY", 5)))
 
         # @todo - how to check this? is it possible?
         self.status_code = 200
@@ -440,6 +535,8 @@ class base_html_webdriver(Fetcher):
         self.content = self.driver.page_source
         self.headers = {}
 
+        self.screenshot = self.driver.get_screenshot_as_png()
+
     # Does the connection to the webdriver work? run a test connection.
     def is_ready(self):
         from selenium import webdriver
@@ -478,7 +575,12 @@ class html_requests(Fetcher):
             ignore_status_codes=False,
             current_css_filter=None):
 
-        proxies={}
+        # Make requests use a more modern looking user-agent
+        if not 'User-Agent' in request_headers:
+            request_headers['User-Agent'] = os.getenv("DEFAULT_SETTINGS_HEADERS_USERAGENT",
+                                                      'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.66 Safari/537.36')
+
+        proxies = {}
 
         # Allows override the proxy on a per-request basis
         if self.proxy_override:
@@ -506,10 +608,14 @@ class html_requests(Fetcher):
             if encoding:
                 r.encoding = encoding
 
+        if not r.content or not len(r.content):
+            raise EmptyReply(url=url, status_code=r.status_code)
+
         # @todo test this
         # @todo maybe you really want to test zero-byte return pages?
-        if (not ignore_status_codes and not r) or not r.content or not len(r.content):
-            raise EmptyReply(url=url, status_code=r.status_code)
+        if r.status_code != 200 and not ignore_status_codes:
+            # maybe check with content works?
+            raise Non200ErrorCodeReceived(url=url, status_code=r.status_code, page_html=r.text)
 
         self.status_code = r.status_code
         self.content = r.text

changedetectionio/fetch_site_status.py

@@ -1,4 +1,5 @@
 import hashlib
+import logging
 import os
 import re
 import time
@@ -10,48 +11,37 @@ urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
 
 
 # Some common stuff here that can be moved to a base class
+# (set_proxy_from_list)
 class perform_site_check():
+    screenshot = None
+    xpath_data = None
 
     def __init__(self, *args, datastore, **kwargs):
         super().__init__(*args, **kwargs)
         self.datastore = datastore
 
-    # If there was a proxy list enabled, figure out what proxy_args/which proxy to use
-    # if watch.proxy use that
-    # fetcher.proxy_override = watch.proxy or main config proxy
-    # Allows override the proxy on a per-request basis
-    # ALWAYS use the first one is nothing selected
+    # Doesn't look like python supports forward slash auto enclosure in re.findall
+    # So convert it to inline flag "foobar(?i)" type configuration
+    def forward_slash_enclosed_regex_to_options(self, regex):
+        res = re.search(r'^/(.*?)/(\w+)$', regex, re.IGNORECASE)
 
-    def set_proxy_from_list(self, watch):
-        proxy_args = None
-        if self.datastore.proxy_list is None:
-            return None
-
-        # If its a valid one
-        if any([watch['proxy'] in p for p in self.datastore.proxy_list]):
-            proxy_args = watch['proxy']
-
-        # not valid (including None), try the system one
+        if res:
+            regex = res.group(1)
+            regex += '(?{})'.format(res.group(2))
         else:
-            system_proxy = self.datastore.data['settings']['requests']['proxy']
-            # Is not None and exists
-            if any([system_proxy in p for p in self.datastore.proxy_list]):
-                proxy_args = system_proxy
+            regex += '(?{})'.format('i')
 
-        # Fallback - Did not resolve anything, use the first available
-        if proxy_args is None:
-            proxy_args = self.datastore.proxy_list[0][0]
+        return regex
 
-        return proxy_args
 
     def run(self, uuid):
-        timestamp = int(time.time())  # used for storage etc too
-
         changed_detected = False
         screenshot = False  # as bytes
         stripped_text_from_html = ""
 
-        watch = self.datastore.data['watching'][uuid]
+        watch = self.datastore.data['watching'].get(uuid)
+        if not watch:
+            return
 
         # Protect against file:// access
         if re.search(r'^file', watch['url'], re.IGNORECASE) and not os.getenv('ALLOW_FILE_URI', False):
@@ -62,7 +52,7 @@ class perform_site_check():
         # Unset any existing notification error
         update_obj = {'last_notification_error': False, 'last_error': False}
 
-        extra_headers = self.datastore.get_val(uuid, 'headers')
+        extra_headers =self.datastore.data['watching'][uuid].get('headers')
 
         # Tweak the base config with the per-watch ones
         request_headers = self.datastore.data['settings']['headers'].copy()
@@ -74,11 +64,13 @@ class perform_site_check():
         if 'Accept-Encoding' in request_headers and "br" in request_headers['Accept-Encoding']:
             request_headers['Accept-Encoding'] = request_headers['Accept-Encoding'].replace(', br', '')
 
-        timeout = self.datastore.data['settings']['requests']['timeout']
-        url = self.datastore.get_val(uuid, 'url')
-        request_body = self.datastore.get_val(uuid, 'body')
-        request_method = self.datastore.get_val(uuid, 'method')
-        ignore_status_code = self.datastore.get_val(uuid, 'ignore_status_codes')
+        timeout = self.datastore.data['settings']['requests'].get('timeout')
+
+        url = watch.link
+
+        request_body = self.datastore.data['watching'][uuid].get('body')
+        request_method = self.datastore.data['watching'][uuid].get('method')
+        ignore_status_codes = self.datastore.data['watching'][uuid].get('ignore_status_codes', False)
 
         # source: support
         is_source = False
@@ -94,9 +86,13 @@ class perform_site_check():
             # If the klass doesnt exist, just use a default
             klass = getattr(content_fetcher, "html_requests")
 
+        proxy_id = self.datastore.get_preferred_proxy_for_watch(uuid=uuid)
+        proxy_url = None
+        if proxy_id:
+            proxy_url = self.datastore.proxy_list.get(proxy_id).get('url')
+            print ("UUID {} Using proxy {}".format(uuid, proxy_url))
 
-        proxy_args = self.set_proxy_from_list(watch)
-        fetcher = klass(proxy_override=proxy_args)
+        fetcher = klass(proxy_override=proxy_url)
 
         # Configurable per-watch or global extra delay before extracting text (for webDriver types)
         system_webdriver_delay = self.datastore.data['settings']['application'].get('webdriver_delay', None)
@@ -105,9 +101,15 @@ class perform_site_check():
         elif system_webdriver_delay is not None:
             fetcher.render_extract_delay = system_webdriver_delay
 
-        fetcher.run(url, timeout, request_headers, request_body, request_method, ignore_status_code, watch['css_filter'])
+        if watch['webdriver_js_execute_code'] is not None and watch['webdriver_js_execute_code'].strip():
+            fetcher.webdriver_js_execute_code = watch['webdriver_js_execute_code']
+
+        fetcher.run(url, timeout, request_headers, request_body, request_method, ignore_status_codes, watch['css_filter'])
         fetcher.quit()
 
+        self.screenshot = fetcher.screenshot
+        self.xpath_data = fetcher.xpath_data
+
         # Fetching complete, now filters
         # @todo move to class / maybe inside of fetcher abstract base?
 
@@ -141,12 +143,15 @@ class perform_site_check():
             has_filter_rule = True
 
         if has_filter_rule:
-            if 'json:' in css_filter_rule:
-                stripped_text_from_html = html_tools.extract_json_as_string(content=fetcher.content, jsonpath_filter=css_filter_rule)
+            json_filter_prefixes = ['json:', 'jq:']
+            if any(prefix in css_filter_rule for prefix in json_filter_prefixes):
+                stripped_text_from_html = html_tools.extract_json_as_string(content=fetcher.content, json_filter=css_filter_rule)
                 is_html = False
 
         if is_html or is_source:
+            
             # CSS Filter, extract the HTML that matches and feed that into the existing inscriptis::get_text
+            fetcher.content = html_tools.workarounds_for_obfuscations(fetcher.content)
             html_content = fetcher.content
 
             # If not JSON,  and if it's not text/plain..
@@ -189,7 +194,7 @@ class perform_site_check():
         # Treat pages with no renderable text content as a change? No by default
         empty_pages_are_a_change = self.datastore.data['settings']['application'].get('empty_pages_are_a_change', False)
         if not is_json and not empty_pages_are_a_change and len(stripped_text_from_html.strip()) == 0:
-            raise content_fetcher.ReplyWithContentButNoText(url=url, status_code=200)
+            raise content_fetcher.ReplyWithContentButNoText(url=url, status_code=fetcher.get_last_status_code(), screenshot=screenshot)
 
         # We rely on the actual text in the html output.. many sites have random script vars etc,
         # in the future we'll implement other mechanisms.
@@ -209,44 +214,64 @@ class perform_site_check():
         if len(extract_text) > 0:
             regex_matched_output = []
             for s_re in extract_text:
-                result = re.findall(s_re.encode('utf8'), stripped_text_from_html,
-                                    flags=re.MULTILINE | re.DOTALL | re.LOCALE)
-                if result:
-                    regex_matched_output.append(result[0])
+                # incase they specified something in '/.../x'
+                regex = self.forward_slash_enclosed_regex_to_options(s_re)
+                result = re.findall(regex.encode('utf-8'), stripped_text_from_html)
 
+                for l in result:
+                    if type(l) is tuple:
+                        #@todo - some formatter option default (between groups)
+                        regex_matched_output += list(l) + [b'\n']
+                    else:
+                        # @todo - some formatter option default (between each ungrouped result)
+                        regex_matched_output += [l] + [b'\n']
+
+            # Now we will only show what the regex matched
+            stripped_text_from_html = b''
+            text_content_before_ignored_filter = b''
             if regex_matched_output:
-                stripped_text_from_html = b'\n'.join(regex_matched_output)
+                # @todo some formatter for presentation?
+                stripped_text_from_html = b''.join(regex_matched_output)
                 text_content_before_ignored_filter = stripped_text_from_html
 
+
         # Re #133 - if we should strip whitespaces from triggering the change detected comparison
         if self.datastore.data['settings']['application'].get('ignore_whitespace', False):
             fetched_md5 = hashlib.md5(stripped_text_from_html.translate(None, b'\r\n\t ')).hexdigest()
         else:
             fetched_md5 = hashlib.md5(stripped_text_from_html).hexdigest()
 
-        # On the first run of a site, watch['previous_md5'] will be None, set it the current one.
-        if not watch.get('previous_md5'):
-            watch['previous_md5'] = fetched_md5
-            update_obj["previous_md5"] = fetched_md5
-
-        blocked_by_not_found_trigger_text = False
+        ############ Blocking rules, after checksum #################
+        blocked = False
 
         if len(watch['trigger_text']):
-            # Yeah, lets block first until something matches
-            blocked_by_not_found_trigger_text = True
+            # Assume blocked
+            blocked = True
             # Filter and trigger works the same, so reuse it
             # It should return the line numbers that match
             result = html_tools.strip_ignore_text(content=str(stripped_text_from_html),
                                                   wordlist=watch['trigger_text'],
                                                   mode="line numbers")
-            # If it returned any lines that matched..
+            # Unblock if the trigger was found
             if result:
-                blocked_by_not_found_trigger_text = False
+                blocked = False
 
-        if not blocked_by_not_found_trigger_text and watch['previous_md5'] != fetched_md5:
+
+        if len(watch['text_should_not_be_present']):
+            # If anything matched, then we should block a change from happening
+            result = html_tools.strip_ignore_text(content=str(stripped_text_from_html),
+                                                  wordlist=watch['text_should_not_be_present'],
+                                                  mode="line numbers")
+            if result:
+                blocked = True
+
+        # The main thing that all this at the moment comes down to :)
+        if watch['previous_md5'] != fetched_md5:
             changed_detected = True
-            update_obj["previous_md5"] = fetched_md5
-            update_obj["last_changed"] = timestamp
+
+        # Looks like something changed, but did it match all the rules?
+        if blocked:
+            changed_detected = False
 
         # Extract title as title
         if is_html:
@@ -254,4 +279,21 @@ class perform_site_check():
                 if not watch['title'] or not len(watch['title']):
                     update_obj['title'] = html_tools.extract_element(find='title', html_content=fetcher.content)
 
-        return changed_detected, update_obj, text_content_before_ignored_filter, fetcher.screenshot, fetcher.xpath_data
+        if changed_detected:
+            if watch.get('check_unique_lines', False):
+                has_unique_lines = watch.lines_contain_something_unique_compared_to_history(lines=stripped_text_from_html.splitlines())
+                # One or more lines? unsure?
+                if not has_unique_lines:
+                    logging.debug("check_unique_lines: UUID {} didnt have anything new setting change_detected=False".format(uuid))
+                    changed_detected = False
+                else:
+                    logging.debug("check_unique_lines: UUID {} had unique content".format(uuid))
+
+        # Always record the new checksum
+        update_obj["previous_md5"] = fetched_md5
+
+        # On the first run of a site, watch['previous_md5'] will be None, set it the current one.
+        if not watch.get('previous_md5'):
+            watch['previous_md5'] = fetched_md5
+
+        return changed_detected, update_obj, text_content_before_ignored_filter

changedetectionio/forms.py

@@ -303,22 +303,44 @@ class ValidateCSSJSONXPATHInput(object):
 
                 # Re #265 - maybe in the future fetch the page and offer a
                 # warning/notice that its possible the rule doesnt yet match anything?
+                if not self.allow_json:
+                    raise ValidationError("jq not permitted in this field!")
+
+            if 'jq:' in line:
+                try:
+                    import jq
+                except ModuleNotFoundError:
+                    # `jq` requires full compilation in windows and so isn't generally available
+                    raise ValidationError("jq not support not found")
+
+                input = line.replace('jq:', '')
+
+                try:
+                    jq.compile(input)
+                except (ValueError) as e:
+                    message = field.gettext('\'%s\' is not a valid jq expression. (%s)')
+                    raise ValidationError(message % (input, str(e)))
+                except:
+                    raise ValidationError("A system-error occurred when validating your jq expression")
 
 
 class quickWatchForm(Form):
     url = fields.URLField('URL', validators=[validateURL()])
     tag = StringField('Group tag', [validators.Optional()])
+    watch_submit_button = SubmitField('Watch', render_kw={"class": "pure-button pure-button-primary"})
+    edit_and_watch_submit_button = SubmitField('Edit > Watch', render_kw={"class": "pure-button pure-button-primary"})
+
 
 # Common to a single watch and the global settings
 class commonSettingsForm(Form):
-
-    notification_urls = StringListField('Notification URL list', validators=[validators.Optional(), ValidateNotificationBodyAndTitleWhenURLisSet(), ValidateAppRiseServers()])
-    notification_title = StringField('Notification title', default=default_notification_title, validators=[validators.Optional(), ValidateTokensList()])
-    notification_body = TextAreaField('Notification body', default=default_notification_body, validators=[validators.Optional(), ValidateTokensList()])
-    notification_format = SelectField('Notification format', choices=valid_notification_formats.keys(), default=default_notification_format)
+    notification_urls = StringListField('Notification URL list', validators=[validators.Optional(), ValidateAppRiseServers()])
+    notification_title = StringField('Notification title', validators=[validators.Optional(), ValidateTokensList()])
+    notification_body = TextAreaField('Notification body', validators=[validators.Optional(), ValidateTokensList()])
+    notification_format = SelectField('Notification format', choices=valid_notification_formats.keys())
     fetch_backend = RadioField(u'Fetch method', choices=content_fetcher.available_fetchers(), validators=[ValidateContentFetcherIsReady()])
     extract_title_as_title = BooleanField('Extract <title> from document and use as watch title', default=False)
-    webdriver_delay = IntegerField('Wait seconds before extracting text', validators=[validators.Optional(), validators.NumberRange(min=1, message="Should contain one or more seconds")] )
+    webdriver_delay = IntegerField('Wait seconds before extracting text', validators=[validators.Optional(), validators.NumberRange(min=1,
+                                                                                                                                    message="Should contain one or more seconds")])
 
 class watchForm(commonSettingsForm):
 
@@ -340,10 +362,19 @@ class watchForm(commonSettingsForm):
     body = TextAreaField('Request body', [validators.Optional()])
     method = SelectField('Request method', choices=valid_method, default=default_method)
     ignore_status_codes = BooleanField('Ignore status codes (process non-2xx status codes as normal)', default=False)
+    check_unique_lines = BooleanField('Only trigger when new lines appear', default=False)
     trigger_text = StringListField('Trigger/wait for text', [validators.Optional(), ValidateListRegex()])
+    text_should_not_be_present = StringListField('Block change-detection if text matches', [validators.Optional(), ValidateListRegex()])
+
+    webdriver_js_execute_code = TextAreaField('Execute JavaScript before change detection', render_kw={"rows": "5"}, validators=[validators.Optional()])
+
     save_button = SubmitField('Save', render_kw={"class": "pure-button pure-button-primary"})
-    save_and_preview_button = SubmitField('Save & Preview', render_kw={"class": "pure-button pure-button-primary"})
+
     proxy = RadioField('Proxy')
+    filter_failure_notification_send = BooleanField(
+        'Send a notification when the filter can no longer be found on the page', default=False)
+
+    notification_muted = BooleanField('Notifications Muted / Off', default=False)
 
     def validate(self, **kwargs):
         if not super().validate():
@@ -363,7 +394,9 @@ class watchForm(commonSettingsForm):
 class globalSettingsRequestForm(Form):
     time_between_check = FormField(TimeBetweenCheckForm)
     proxy = RadioField('Proxy')
-
+    jitter_seconds = IntegerField('Random jitter seconds ± check',
+                                  render_kw={"style": "width: 5em;"},
+                                  validators=[validators.NumberRange(min=0, message="Should contain zero or more seconds")])
 
 # datastore.data['settings']['application']..
 class globalSettingsApplicationForm(commonSettingsForm):
@@ -372,7 +405,6 @@ class globalSettingsApplicationForm(commonSettingsForm):
     global_subtractive_selectors = StringListField('Remove elements', [ValidateCSSJSONXPATHInput(allow_xpath=False, allow_json=False)])
     global_ignore_text = StringListField('Ignore Text', [ValidateListRegex()])
     ignore_whitespace = BooleanField('Ignore whitespace')
-    real_browser_save_screenshot = BooleanField('Save last screenshot when using Chrome?')
     removepassword_button = SubmitField('Remove password', render_kw={"class": "pure-button pure-button-primary"})
     empty_pages_are_a_change =  BooleanField('Treat empty pages as a change?', default=False)
     render_anchor_tag_content = BooleanField('Render anchor tag content', default=False)
@@ -380,6 +412,11 @@ class globalSettingsApplicationForm(commonSettingsForm):
     api_access_token_enabled = BooleanField('API access token security check enabled', default=True, validators=[validators.Optional()])
     password = SaltyPasswordField()
 
+    filter_failure_notification_threshold_attempts = IntegerField('Number of times the filter can be missing before sending a notification',
+                                                                  render_kw={"style": "width: 5em;"},
+                                                                  validators=[validators.NumberRange(min=0,
+                                                                                                     message="Should contain zero or more attempts")])
+
 
 class globalSettingsForm(Form):
     # Define these as FormFields/"sub forms", this way it matches the JSON storage

changedetectionio/html_tools.py

@@ -1,23 +1,29 @@
-import json
-import re
-from typing import List
 
 from bs4 import BeautifulSoup
-from jsonpath_ng.ext import parse
-import re
 from inscriptis import get_text
 from inscriptis.model.config import ParserConfig
+from jsonpath_ng.ext import parse
+from typing import List
+import json
+import re
 
+class FilterNotFoundInResponse(ValueError):
+    def __init__(self, msg):
+        ValueError.__init__(self, msg)
 
 class JSONNotFound(ValueError):
     def __init__(self, msg):
         ValueError.__init__(self, msg)
 
+
 # Given a CSS Rule, and a blob of HTML, return the blob of HTML that matches
 def css_filter(css_filter, html_content):
     soup = BeautifulSoup(html_content, "html.parser")
     html_block = ""
-    for item in soup.select(css_filter, separator=""):
+    r = soup.select(css_filter, separator="")
+    if len(html_content) > 0 and len(r) == 0:
+        raise FilterNotFoundInResponse(css_filter)
+    for item in r:
         html_block += str(item)
 
     return html_block + "\n"
@@ -42,8 +48,19 @@ def xpath_filter(xpath_filter, html_content):
     tree = html.fromstring(bytes(html_content, encoding='utf-8'))
     html_block = ""
 
-    for item in tree.xpath(xpath_filter.strip(), namespaces={'re':'http://exslt.org/regular-expressions'}):
-        html_block+= etree.tostring(item, pretty_print=True).decode('utf-8')+"<br/>"
+    r = tree.xpath(xpath_filter.strip(), namespaces={'re': 'http://exslt.org/regular-expressions'})
+    if len(html_content) > 0 and len(r) == 0:
+        raise FilterNotFoundInResponse(xpath_filter)
+
+    #@note: //title/text() wont work where <title>CDATA..
+
+    for element in r:
+        if type(element) == etree._ElementStringResult:
+            html_block += str(element) + "<br/>"
+        elif type(element) == etree._ElementUnicodeResult:
+            html_block += str(element) + "<br/>"
+        else:
+            html_block += etree.tostring(element, pretty_print=True).decode('utf-8') + "<br/>"
 
     return html_block
 
@@ -62,19 +79,35 @@ def extract_element(find='title', html_content=''):
     return element_text
 
 #
-def _parse_json(json_data, jsonpath_filter):
-    s=[]
-    jsonpath_expression = parse(jsonpath_filter.replace('json:', ''))
-    match = jsonpath_expression.find(json_data)
+def _parse_json(json_data, json_filter):
+    if 'json:' in json_filter:
+        jsonpath_expression = parse(json_filter.replace('json:', ''))
+        match = jsonpath_expression.find(json_data)
+        return _get_stripped_text_from_json_match(match)
 
+    if 'jq:' in json_filter:
+
+        try:
+            import jq
+        except ModuleNotFoundError:
+            # `jq` requires full compilation in windows and so isn't generally available
+            raise Exception("jq not support not found")
+
+        jq_expression = jq.compile(json_filter.replace('jq:', ''))
+        match = jq_expression.input(json_data).all()
+
+        return _get_stripped_text_from_json_match(match)
+
+def _get_stripped_text_from_json_match(match):
+    s = []
     # More than one result, we will return it as a JSON list.
     if len(match) > 1:
         for i in match:
-            s.append(i.value)
+            s.append(i.value if hasattr(i, 'value') else i)
 
     # Single value, use just the value, as it could be later used in a token in notifications.
     if len(match) == 1:
-        s = match[0].value
+        s = match[0].value if hasattr(match[0], 'value') else match[0]
 
     # Re #257 - Better handling where it does not exist, in the case the original 's' value was False..
     if not match:
@@ -86,16 +119,16 @@ def _parse_json(json_data, jsonpath_filter):
 
     return stripped_text_from_html
 
-def extract_json_as_string(content, jsonpath_filter):
+def extract_json_as_string(content, json_filter):
 
     stripped_text_from_html = False
 
     # Try to parse/filter out the JSON, if we get some parser error, then maybe it's embedded <script type=ldjson>
     try:
-        stripped_text_from_html = _parse_json(json.loads(content), jsonpath_filter)
+        stripped_text_from_html = _parse_json(json.loads(content), json_filter)
     except json.JSONDecodeError:
 
-        # Foreach <script json></script> blob.. just return the first that matches jsonpath_filter
+        # Foreach <script json></script> blob.. just return the first that matches json_filter
         s = []
         soup = BeautifulSoup(content, 'html.parser')
         bs_result = soup.findAll('script')
@@ -114,7 +147,7 @@ def extract_json_as_string(content, jsonpath_filter):
                 # Just skip it
                 continue
             else:
-                stripped_text_from_html = _parse_json(json_data, jsonpath_filter)
+                stripped_text_from_html = _parse_json(json_data, json_filter)
                 if stripped_text_from_html:
                     break
 
@@ -202,3 +235,17 @@ def html_to_text(html_content: str, render_anchor_tag_content=False) -> str:
 
     return text_content
 
+def workarounds_for_obfuscations(content):
+    """
+    Some sites are using sneaky tactics to make prices and other information un-renderable by Inscriptis
+    This could go into its own Pip package in the future, for faster updates
+    """
+
+    # HomeDepot.com style <span>$<!-- -->90<!-- -->.<!-- -->74</span>
+    # https://github.com/weblyzard/inscriptis/issues/45
+    if not content:
+        return content
+
+    content = re.sub('<!--\s+-->', '', content)
+
+    return content

changedetectionio/model/App.py

@@ -1,29 +1,24 @@
-import collections
-import os
-
-import uuid as uuid_builder
-
+from os import getenv
 from changedetectionio.notification import (
     default_notification_body,
     default_notification_format,
     default_notification_title,
 )
 
+_FILTER_FAILURE_THRESHOLD_ATTEMPTS_DEFAULT = 6
+
 class model(dict):
     base_config = {
             'note': "Hello! If you change this file manually, please be sure to restart your changedetection.io instance!",
             'watching': {},
             'settings': {
                 'headers': {
-                    'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.66 Safari/537.36',
-                    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9',
-                    'Accept-Encoding': 'gzip, deflate',  # No support for brolti in python requests yet.
-                    'Accept-Language': 'en-GB,en-US;q=0.9,en;'
                 },
                 'requests': {
-                    'timeout': 15,  # Default 15 seconds
+                    'timeout': int(getenv("DEFAULT_SETTINGS_REQUESTS_TIMEOUT", "45")),  # Default 45 seconds
                     'time_between_check': {'weeks': None, 'days': None, 'hours': 3, 'minutes': None, 'seconds': None},
-                    'workers': 10,  # Number of threads, lower is better for slow connections
+                    'jitter_seconds': 0,
+                    'workers': int(getenv("DEFAULT_SETTINGS_REQUESTS_WORKERS", "10")),  # Number of threads, lower is better for slow connections
                     'proxy': None # Preferred proxy connection
                 },
                 'application': {
@@ -32,7 +27,8 @@ class model(dict):
                     'base_url' : None,
                     'extract_title_as_title': False,
                     'empty_pages_are_a_change': False,
-                    'fetch_backend': os.getenv("DEFAULT_FETCH_BACKEND", "html_requests"),
+                    'fetch_backend': getenv("DEFAULT_FETCH_BACKEND", "html_requests"),
+                    'filter_failure_notification_threshold_attempts': _FILTER_FAILURE_THRESHOLD_ATTEMPTS_DEFAULT,
                     'global_ignore_text': [], # List of text to ignore when calculating the comparison checksum
                     'global_subtractive_selectors': [],
                     'ignore_whitespace': True,
@@ -42,7 +38,6 @@ class model(dict):
                     'notification_title': default_notification_title,
                     'notification_body': default_notification_body,
                     'notification_format': default_notification_format,
-                    'real_browser_save_screenshot': True,
                     'schema_version' : 0,
                     'webdriver_delay': None  # Extra delay in seconds before extracting text
                 }

changedetectionio/model/Watch.py

@@ -1,30 +1,30 @@
+from distutils.util import strtobool
+import logging
 import os
-import uuid as uuid_builder
+import time
+import uuid
 
 minimum_seconds_recheck_time = int(os.getenv('MINIMUM_SECONDS_RECHECK_TIME', 60))
+mtable = {'seconds': 1, 'minutes': 60, 'hours': 3600, 'days': 86400, 'weeks': 86400 * 7}
 
 from changedetectionio.notification import (
-    default_notification_body,
-    default_notification_format,
-    default_notification_title,
+    default_notification_format_for_watch
 )
 
 
 class model(dict):
     __newest_history_key = None
     __history_n=0
-
     __base_config = {
             'url': None,
             'tag': None,
             'last_checked': 0,
-            'last_changed': 0,
             'paused': False,
             'last_viewed': 0,  # history key value of the last viewed via the [diff] link
             #'newest_history_key': 0,
             'title': None,
             'previous_md5': False,
-            'uuid': str(uuid_builder.uuid4()),
+            'uuid': str(uuid.uuid4()),
             'headers': {},  # Extra headers to send
             'body': None,
             'method': 'GET',
@@ -32,25 +32,33 @@ class model(dict):
             'ignore_text': [],  # List of text to ignore when calculating the comparison checksum
             # Custom notification content
             'notification_urls': [],  # List of URLs to add to the notification Queue (Usually AppRise)
-            'notification_title': default_notification_title,
-            'notification_body': default_notification_body,
-            'notification_format': default_notification_format,
+            'notification_title': None,
+            'notification_body': None,
+            'notification_format': default_notification_format_for_watch,
+            'notification_muted': False,
             'css_filter': '',
+            'last_error': False,
             'extract_text': [],  # Extract text by regex after filters
             'subtractive_selectors': [],
             'trigger_text': [],  # List of text or regex to wait for until a change is detected
+            'text_should_not_be_present': [], # Text that should not present
             'fetch_backend': None,
+            'filter_failure_notification_send': strtobool(os.getenv('FILTER_FAILURE_NOTIFICATION_SEND_DEFAULT', 'True')),
+            'consecutive_filter_failures': 0, # Every time the CSS/xPath filter cannot be located, reset when all is fine.
             'extract_title_as_title': False,
+            'check_unique_lines': False, # On change-detected, compare against all history if its something new
             'proxy': None, # Preferred proxy connection
             # Re #110, so then if this is set to None, we know to use the default value instead
             # Requires setting to None on submit if it's the same as the default
             # Should be all None by default, so we use the system default in this case.
             'time_between_check': {'weeks': None, 'days': None, 'hours': None, 'minutes': None, 'seconds': None},
-            'webdriver_delay': None
+            'webdriver_delay': None,
+            'webdriver_js_execute_code': None, # Run before change-detection
         }
+    jitter_seconds = 0
 
     def __init__(self, *arg, **kw):
-        import uuid
+
         self.update(self.__base_config)
         self.__datastore_path = kw['datastore_path']
 
@@ -62,7 +70,10 @@ class model(dict):
             self.update(kw['default'])
             del kw['default']
 
-        # goes at the end so we update the default object with the initialiser
+        # Be sure the cached timestamp is ready
+        bump = self.history
+
+        # Goes at the end so we update the default object with the initialiser
         super(model, self).__init__(*arg, **kw)
 
     @property
@@ -72,22 +83,77 @@ class model(dict):
 
         return False
 
+    def ensure_data_dir_exists(self):
+        if not os.path.isdir(self.watch_data_dir):
+            print ("> Creating data dir {}".format(self.watch_data_dir))
+            os.mkdir(self.watch_data_dir)
+
+    @property
+    def link(self):
+        url = self.get('url', '')
+        if '{%' in url or '{{' in url:
+            from jinja2 import Environment
+            # Jinja2 available in URLs along with https://pypi.org/project/jinja2-time/
+            jinja2_env = Environment(extensions=['jinja2_time.TimeExtension'])
+            return str(jinja2_env.from_string(url).render())
+        return url
+
+    @property
+    def label(self):
+        # Used for sorting
+        if self['title']:
+            return self['title']
+        return self['url']
+
+    @property
+    def last_changed(self):
+        # last_changed will be the newest snapshot, but when we have just one snapshot, it should be 0
+        if self.__history_n <= 1:
+            return 0
+        if self.__newest_history_key:
+            return int(self.__newest_history_key)
+        return 0
+
     @property
     def history_n(self):
         return self.__history_n
 
     @property
     def history(self):
+        """History index is just a text file as a list
+            {watch-uuid}/history.txt
+
+            contains a list like
+
+            {epoch-time},{filename}\n
+
+            We read in this list as the history information
+
+        """
         tmp_history = {}
-        import logging
-        import time
 
         # Read the history file as a dict
-        fname = os.path.join(self.__datastore_path, self.get('uuid'), "history.txt")
+        fname = os.path.join(self.watch_data_dir, "history.txt")
         if os.path.isfile(fname):
-            logging.debug("Disk IO accessed " + str(time.time()))
+            logging.debug("Reading history index " + str(time.time()))
             with open(fname, "r") as f:
-                tmp_history = dict(i.strip().split(',', 2) for i in f.readlines())
+                for i in f.readlines():
+                    if ',' in i:
+                        k, v = i.strip().split(',', 2)
+
+                        # The index history could contain a relative path, so we need to make the fullpath
+                        # so that python can read it
+                        if not '/' in v and not '\'' in v:
+                            v = os.path.join(self.watch_data_dir, v)
+                        else:
+                            # It's possible that they moved the datadir on older versions
+                            # So the snapshot exists but is in a different path
+                            snapshot_fname = v.split('/')[-1]
+                            proposed_new_path = os.path.join(self.watch_data_dir, snapshot_fname)
+                            if not os.path.exists(v) and os.path.exists(proposed_new_path):
+                                v = proposed_new_path
+
+                        tmp_history[k] = v
 
         if len(tmp_history):
             self.__newest_history_key = list(tmp_history.keys())[-1]
@@ -98,7 +164,7 @@ class model(dict):
 
     @property
     def has_history(self):
-        fname = os.path.join(self.__datastore_path, self.get('uuid'), "history.txt")
+        fname = os.path.join(self.watch_data_dir, "history.txt")
         return os.path.isfile(fname)
 
     # Returns the newest key, but if theres only 1 record, then it's counted as not being new, so return 0.
@@ -114,38 +180,30 @@ class model(dict):
         bump = self.history
         return self.__newest_history_key
 
-
     # Save some text file to the appropriate path and bump the history
     # result_obj from fetch_site_status.run()
     def save_history_text(self, contents, timestamp):
-        import uuid
-        from os import mkdir, path, unlink
-        import logging
 
-        output_path = "{}/{}".format(self.__datastore_path, self['uuid'])
+        self.ensure_data_dir_exists()
+        snapshot_fname = "{}.txt".format(str(uuid.uuid4()))
 
-        # Incase the operator deleted it, check and create.
-        if not os.path.isdir(output_path):
-            mkdir(output_path)
-
-        snapshot_fname = "{}/{}.stripped.txt".format(output_path, uuid.uuid4())
-        logging.debug("Saving history text {}".format(snapshot_fname))
-
-        with open(snapshot_fname, 'wb') as f:
+        # in /diff/ and /preview/ we are going to assume for now that it's UTF-8 when reading
+        # most sites are utf-8 and some are even broken utf-8
+        with open(os.path.join(self.watch_data_dir, snapshot_fname), 'wb') as f:
             f.write(contents)
             f.close()
 
         # Append to index
         # @todo check last char was \n
-        index_fname = "{}/history.txt".format(output_path)
+        index_fname = os.path.join(self.watch_data_dir, "history.txt")
         with open(index_fname, 'a') as f:
             f.write("{},{}\n".format(timestamp, snapshot_fname))
             f.close()
 
         self.__newest_history_key = timestamp
-        self.__history_n+=1
+        self.__history_n += 1
 
-        #@todo bump static cache of the last timestamp so we dont need to examine the file to set a proper ''viewed'' status
+        # @todo bump static cache of the last timestamp so we dont need to examine the file to set a proper ''viewed'' status
         return snapshot_fname
 
     @property
@@ -157,9 +215,75 @@ class model(dict):
 
     def threshold_seconds(self):
         seconds = 0
-        mtable = {'seconds': 1, 'minutes': 60, 'hours': 3600, 'days': 86400, 'weeks': 86400 * 7}
         for m, n in mtable.items():
             x = self.get('time_between_check', {}).get(m, None)
             if x:
                 seconds += x * n
         return seconds
+
+    # Iterate over all history texts and see if something new exists
+    def lines_contain_something_unique_compared_to_history(self, lines: list):
+        local_lines = set([l.decode('utf-8').strip().lower() for l in lines])
+
+        # Compare each lines (set) against each history text file (set) looking for something new..
+        existing_history = set({})
+        for k, v in self.history.items():
+            alist = set([line.decode('utf-8').strip().lower() for line in open(v, 'rb')])
+            existing_history = existing_history.union(alist)
+
+        # Check that everything in local_lines(new stuff) already exists in existing_history - it should
+        # if not, something new happened
+        return not local_lines.issubset(existing_history)
+
+    def get_screenshot(self):
+        fname = os.path.join(self.watch_data_dir, "last-screenshot.png")
+        if os.path.isfile(fname):
+            return fname
+
+        return False
+
+    def __get_file_ctime(self, filename):
+        fname = os.path.join(self.watch_data_dir, filename)
+        if os.path.isfile(fname):
+            return int(os.path.getmtime(fname))
+        return False
+
+    @property
+    def error_text_ctime(self):
+        return self.__get_file_ctime('last-error.txt')
+
+    @property
+    def snapshot_text_ctime(self):
+        if self.history_n==0:
+            return False
+
+        timestamp = list(self.history.keys())[-1]
+        return int(timestamp)
+
+    @property
+    def snapshot_screenshot_ctime(self):
+        return self.__get_file_ctime('last-screenshot.png')
+
+    @property
+    def snapshot_error_screenshot_ctime(self):
+        return self.__get_file_ctime('last-error-screenshot.png')
+
+    @property
+    def watch_data_dir(self):
+        # The base dir of the watch data
+        return os.path.join(self.__datastore_path, self['uuid'])
+    
+    def get_error_text(self):
+        """Return the text saved from a previous request that resulted in a non-200 error"""
+        fname = os.path.join(self.watch_data_dir, "last-error.txt")
+        if os.path.isfile(fname):
+            with open(fname, 'r') as f:
+                return f.read()
+        return False
+
+    def get_error_snapshot(self):
+        """Return path to the screenshot that resulted in a non-200 error"""
+        fname = os.path.join(self.watch_data_dir, "last-error-screenshot.png")
+        if os.path.isfile(fname):
+            return fname
+        return False

changedetectionio/notification.py

@@ -14,16 +14,19 @@ valid_tokens = {
     'current_snapshot': ''
 }
 
+default_notification_format_for_watch = 'System default'
+default_notification_format = 'Text'
+default_notification_body = '{watch_url} had a change.\n---\n{diff}\n---\n'
+default_notification_title = 'ChangeDetection.io Notification - {watch_url}'
+
 valid_notification_formats = {
     'Text': NotifyFormat.TEXT,
     'Markdown': NotifyFormat.MARKDOWN,
     'HTML': NotifyFormat.HTML,
+    # Used only for editing a watch (not for global)
+    default_notification_format_for_watch: default_notification_format_for_watch
 }
 
-default_notification_format = 'Text'
-default_notification_body = '{watch_url} had a change.\n---\n{diff}\n---\n'
-default_notification_title = 'ChangeDetection.io Notification - {watch_url}'
-
 def process_notification(n_object, datastore):
 
     # Get the notification body from datastore
@@ -34,7 +37,6 @@ def process_notification(n_object, datastore):
         valid_notification_formats[default_notification_format],
     )
 
-
     # Insert variables into the notification content
     notification_parameters = create_notification_parameters(n_object, datastore)
 
@@ -48,9 +50,10 @@ def process_notification(n_object, datastore):
     # Anything higher than or equal to WARNING (which covers things like Connection errors)
     # raise it as an exception
     apobjs=[]
+    sent_objs=[]
+    from .apprise_asset import asset
     for url in n_object['notification_urls']:
-
-        apobj = apprise.Apprise(debug=True)
+        apobj = apprise.Apprise(debug=True, asset=asset)
         url = url.strip()
         if len(url):
             print(">> Process Notification: AppRise notifying {}".format(url))
@@ -63,23 +66,36 @@ def process_notification(n_object, datastore):
 
                 # So if no avatar_url is specified, add one so it can be correctly calculated into the total payload
                 k = '?' if not '?' in url else '&'
-                if not 'avatar_url' in url:
+                if not 'avatar_url' in url and not url.startswith('mail'):
                     url += k + 'avatar_url=https://raw.githubusercontent.com/dgtlmoon/changedetection.io/master/changedetectionio/static/images/avatar-256x256.png'
 
                 if url.startswith('tgram://'):
+                    # Telegram only supports a limit subset of HTML, remove the '<br/>' we place in.
+                    # re https://github.com/dgtlmoon/changedetection.io/issues/555
+                    # @todo re-use an existing library we have already imported to strip all non-allowed tags
+                    n_body = n_body.replace('<br/>', '\n')
+                    n_body = n_body.replace('</br>', '\n')
                     # real limit is 4096, but minus some for extra metadata
                     payload_max_size = 3600
                     body_limit = max(0, payload_max_size - len(n_title))
                     n_title = n_title[0:payload_max_size]
                     n_body = n_body[0:body_limit]
 
-                elif url.startswith('discord://'):
+                elif url.startswith('discord://') or url.startswith('https://discordapp.com/api/webhooks') or url.startswith('https://discord.com/api'):
                     # real limit is 2000, but minus some for extra metadata
                     payload_max_size = 1700
                     body_limit = max(0, payload_max_size - len(n_title))
                     n_title = n_title[0:payload_max_size]
                     n_body = n_body[0:body_limit]
 
+                elif url.startswith('mailto'):
+                    # Apprise will default to HTML, so we need to override it
+                    # So that whats' generated in n_body is in line with what is going to be sent.
+                    # https://github.com/caronc/apprise/issues/633#issuecomment-1191449321
+                    if not 'format=' in url and (n_format == 'text' or n_format == 'markdown'):
+                        prefix = '?' if not '?' in url else '&'
+                        url = "{}{}format={}".format(url, prefix, n_format)
+
                 apobj.add(url)
 
                 apobj.notify(
@@ -96,6 +112,15 @@ def process_notification(n_object, datastore):
                 log_value = logs.getvalue()
                 if log_value and 'WARNING' in log_value or 'ERROR' in log_value:
                     raise Exception(log_value)
+                
+                sent_objs.append({'title': n_title,
+                                  'body': n_body,
+                                  'url' : url,
+                                  'body_format': n_format})
+
+    # Return what was sent for better logging - after the for loop
+    return sent_objs
+
 
 # Notification title + body content parameters get created here.
 def create_notification_parameters(n_object, datastore):

changedetectionio/run_all_tests.sh

@@ -9,6 +9,8 @@
 # exit when any command fails
 set -e
 
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
 find tests/test_*py -type f|while read test_name
 do
   echo "TEST RUNNING $test_name"
@@ -23,6 +25,13 @@ export BASE_URL="https://really-unique-domain.io"
 pytest tests/test_notification.py
 
 
+## JQ + JSON: filter test
+# jq is not available on windows and we should just test it when the package is installed
+# this will re-test with jq support
+pip3 install jq~=1.3
+pytest tests/test_jsonpath_jq_selector.py
+
+
 # Now for the selenium and playwright/browserless fetchers
 # Note - this is not UI functional tests - just checking that each one can fetch the content
 
@@ -32,16 +41,62 @@ docker run -d --name $$-test_selenium  -p 4444:4444 --rm --shm-size="2g"  seleni
 sleep 5
 export WEBDRIVER_URL=http://localhost:4444/wd/hub
 pytest tests/fetchers/test_content.py
+pytest tests/test_errorhandling.py
 unset WEBDRIVER_URL
 docker kill $$-test_selenium
 
 echo "TESTING WEBDRIVER FETCH > PLAYWRIGHT/BROWSERLESS..."
-# Not all platforms support playwright (not ARM/rPI), so it's not packaged in requirements.txt
-pip3 install playwright~=1.22
 docker run -d --name $$-test_browserless -e "DEFAULT_LAUNCH_ARGS=[\"--window-size=1920,1080\"]" --rm  -p 3000:3000  --shm-size="2g"  browserless/chrome:1.53-chrome-stable
 # takes a while to spin up
 sleep 5
 export PLAYWRIGHT_DRIVER_URL=ws://127.0.0.1:3000
 pytest tests/fetchers/test_content.py
+pytest tests/test_errorhandling.py
+pytest tests/visualselector/test_fetch_data.py
+
 unset PLAYWRIGHT_DRIVER_URL
-docker kill $$-test_browserless
+docker kill $$-test_browserless
+
+# Test proxy list handling, starting two squids on different ports
+# Each squid adds a different header to the response, which is the main thing we test for.
+docker run -d --name $$-squid-one --rm -v `pwd`/tests/proxy_list/squid.conf:/etc/squid/conf.d/debian.conf -p 3128:3128 ubuntu/squid:4.13-21.10_edge
+docker run -d --name $$-squid-two --rm -v `pwd`/tests/proxy_list/squid.conf:/etc/squid/conf.d/debian.conf -p 3129:3128 ubuntu/squid:4.13-21.10_edge
+
+
+# So, basic HTTP as env var test
+export HTTP_PROXY=http://localhost:3128
+export HTTPS_PROXY=http://localhost:3128
+pytest tests/proxy_list/test_proxy.py
+docker logs $$-squid-one 2>/dev/null|grep one.changedetection.io
+if [ $? -ne 0 ]
+then
+  echo "Did not see a request to one.changedetection.io in the squid logs (while checking env vars HTTP_PROXY/HTTPS_PROXY)"
+fi
+unset HTTP_PROXY
+unset HTTPS_PROXY
+
+
+# 2nd test actually choose the preferred proxy from proxies.json
+cp tests/proxy_list/proxies.json-example ./test-datastore/proxies.json
+# Makes a watch use a preferred proxy
+pytest tests/proxy_list/test_multiple_proxy.py
+
+# Should be a request in the default "first" squid
+docker logs $$-squid-one 2>/dev/null|grep chosen.changedetection.io
+if [ $? -ne 0 ]
+then
+  echo "Did not see a request to chosen.changedetection.io in the squid logs (while checking preferred proxy)"
+fi
+
+# And one in the 'second' squid (user selects this as preferred)
+docker logs $$-squid-two 2>/dev/null|grep chosen.changedetection.io
+if [ $? -ne 0 ]
+then
+  echo "Did not see a request to chosen.changedetection.io in the squid logs (while checking preferred proxy)"
+fi
+
+# @todo - test system override proxy selection and watch defaults, setup a 3rd squid?
+docker kill $$-squid-one
+docker kill $$-squid-two
+
+

changedetectionio/static/images/bell-off.svg

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+<svg
+   width="15"
+   height="16.363636"
+   viewBox="0 0 15 16.363636"
+   version="1.1"
+   id="svg4"
+   sodipodi:docname="bell-off.svg"
+   inkscape:version="1.1.1 (1:1.1+202109281949+c3084ef5ed)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview5"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     showgrid="false"
+     fit-margin-top="0"
+     fit-margin-left="0"
+     fit-margin-right="0"
+     fit-margin-bottom="0"
+     inkscape:zoom="28.416667"
+     inkscape:cx="-0.59824046"
+     inkscape:cy="12"
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+     inkscape:window-maximized="0"
+     inkscape:current-layer="svg4" />
+  <defs
+     id="defs8" />
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+     id="path2"
+     style="fill:#f8321b;stroke-width:0.681818;fill-opacity:1" />
+</svg>

changedetectionio/static/images/notice.svg

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+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
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+   height="21.43125mm"
+   viewBox="0 0 20.108334 21.43125"
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+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <defs
+     id="defs2" />
+  <g
+     id="layer1"
+     transform="translate(-141.05873,-76.816635)">
+    <image
+       width="20.108334"
+       height="21.43125"
+       preserveAspectRatio="none"
+       style="image-rendering:optimizeQuality"
+       xlink:href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEwAAABRCAYAAAB430BuAAAABHNCSVQICAgIfAhkiAAABLxJREFU
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+"
+       id="image832"
+       x="141.05873"
+       y="76.816635" />
+  </g>
+</svg>

changedetectionio/static/images/play.svg

@@ -0,0 +1,122 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   version="1.1"
+   id="Capa_1"
+   x="0px"
+   y="0px"
+   viewBox="0 0 15 14.998326"
+   xml:space="preserve"
+   width="15"
+   height="14.998326"
+   sodipodi:docname="play.svg"
+   inkscape:version="1.1.1 (1:1.1+202109281949+c3084ef5ed)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:dc="http://purl.org/dc/elements/1.1/"><sodipodi:namedview
+   id="namedview21"
+   pagecolor="#ffffff"
+   bordercolor="#666666"
+   borderopacity="1.0"
+   inkscape:pageshadow="2"
+   inkscape:pageopacity="0.0"
+   inkscape:pagecheckerboard="0"
+   showgrid="false"
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+   inkscape:cy="7.4991632"
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+   inkscape:window-height="896"
+   inkscape:window-x="3048"
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+   inkscape:window-maximized="0"
+   inkscape:current-layer="Capa_1" /><metadata
+   id="metadata39"><rdf:RDF><cc:Work
+       rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
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+   id="defs37" />
+<path
+   id="path2"
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+   transform="translate(-0.01903604,0.02221043)">
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+   id="g24"
+   transform="translate(-0.01903604,0.02221043)">
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+   id="g26"
+   transform="translate(-0.01903604,0.02221043)">
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+   id="g28"
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+   id="g30"
+   transform="translate(-0.01903604,0.02221043)">
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+<g
+   id="g32"
+   transform="translate(-0.01903604,0.02221043)">
+</g>
+<path
+   sodipodi:type="star"
+   style="fill:#ffffff;fill-opacity:1;stroke-width:37.7953;paint-order:stroke fill markers"
+   id="path1203"
+   inkscape:flatsided="false"
+   sodipodi:sides="3"
+   sodipodi:cx="7.2964563"
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+   sodipodi:r2="1.9026089"
+   sodipodi:arg1="-0.0017436774"
+   sodipodi:arg2="1.0454539"
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+   inkscape:randomized="0"
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+   inkscape:transform-center-y="0.0033175346" /></svg>

changedetectionio/static/images/spread-white.svg

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   width="18"
+   height="19.92"
+   viewBox="0 0 18 19.92"
+   version="1.1"
+   id="svg6"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <defs
+     id="defs10" />
+  <path
+     d="M -3,-2 H 21 V 22 H -3 Z"
+     fill="none"
+     id="path2" />
+  <path
+     d="m 15,14.08 c -0.76,0 -1.44,0.3 -1.96,0.77 L 5.91,10.7 C 5.96,10.47 6,10.24 6,10 6,9.76 5.96,9.53 5.91,9.3 L 12.96,5.19 C 13.5,5.69 14.21,6 15,6 16.66,6 18,4.66 18,3 18,1.34 16.66,0 15,0 c -1.66,0 -3,1.34 -3,3 0,0.24 0.04,0.47 0.09,0.7 L 5.04,7.81 C 4.5,7.31 3.79,7 3,7 1.34,7 0,8.34 0,10 c 0,1.66 1.34,3 3,3 0.79,0 1.5,-0.31 2.04,-0.81 l 7.12,4.16 c -0.05,0.21 -0.08,0.43 -0.08,0.65 0,1.61 1.31,2.92 2.92,2.92 1.61,0 2.92,-1.31 2.92,-2.92 0,-1.61 -1.31,-2.92 -2.92,-2.92 z"
+     id="path4"
+     style="fill:#ffffff;fill-opacity:1" />
+</svg>

changedetectionio/static/js/diff-overview.js

@@ -10,7 +10,13 @@ $(document).ready(function () {
         if (hash_name === '#screenshot') {
             $("img#screenshot-img").attr('src', screenshot_url);
             $("#settings").hide();
-        } else {
+        } else if (hash_name === '#error-screenshot') {
+            $("img#error-screenshot-img").attr('src', error_screenshot_url);
+            $("#settings").hide();
+        }
+
+
+        else {
             $("#settings").show();
         }
     }

changedetectionio/static/js/notifications.js

@@ -40,13 +40,19 @@ $(document).ready(function() {
     $.ajax({
       type: "POST",
       url: notification_base_url,
-      data : data
+      data : data,
+        statusCode: {
+        400: function() {
+            // More than likely the CSRF token was lost when the server restarted
+          alert("There was a problem processing the request, please reload the page.");
+        }
+      }
     }).done(function(data){
       console.log(data);
       alert('Sent');
     }).fail(function(data){
       console.log(data);
-      alert('Error: '+data.responseJSON.error);
+      alert('There was an error communicating with the server.');
     })
   });
 });

changedetectionio/static/js/tabs.js

@@ -1,51 +1,44 @@
 // Rewrite this is a plugin.. is all this JS really 'worth it?'
 
-
-if(!window.location.hash) {
-  var tab=document.querySelectorAll("#default-tab a");
-  tab[0].click();
-}
-
-window.addEventListener('hashchange', function() {
-  var tabs = document.getElementsByClassName('active');
-  while (tabs[0]) {
-    tabs[0].classList.remove('active')
-  }
-  set_active_tab();
+window.addEventListener('hashchange', function () {
+    var tabs = document.getElementsByClassName('active');
+    while (tabs[0]) {
+        tabs[0].classList.remove('active')
+    }
+    set_active_tab();
 }, false);
 
-var has_errors=document.querySelectorAll(".messages .error");
+var has_errors = document.querySelectorAll(".messages .error");
 if (!has_errors.length) {
-    if (document.location.hash == "" ) {
-        document.location.hash = "#general";
-        document.getElementById("default-tab").className = "active";
+    if (document.location.hash == "") {
+        document.querySelector(".tabs ul li:first-child a").click();
     } else {
         set_active_tab();
     }
 } else {
-  focus_error_tab();
+    focus_error_tab();
 }
 
 function set_active_tab() {
-  var tab=document.querySelectorAll("a[href='"+location.hash+"']");
-  if (tab.length) {
-    tab[0].parentElement.className="active";
-  }
+    var tab = document.querySelectorAll("a[href='" + location.hash + "']");
+    if (tab.length) {
+        tab[0].parentElement.className = "active";
+    }
     // hash could move the page down
     window.scrollTo(0, 0);
 }
 
 function focus_error_tab() {
-  // time to use jquery or vuejs really,
-  // activate the tab with the error
-    var tabs = document.querySelectorAll('.tabs li a'),i;
+    // time to use jquery or vuejs really,
+    // activate the tab with the error
+    var tabs = document.querySelectorAll('.tabs li a'), i;
     for (i = 0; i < tabs.length; ++i) {
-      var tab_name=tabs[i].hash.replace('#','');
-      var pane_errors=document.querySelectorAll('#'+tab_name+' .error')
-      if (pane_errors.length) {
-        document.location.hash = '#'+tab_name;
-        return true;
-      }
+        var tab_name = tabs[i].hash.replace('#', '');
+        var pane_errors = document.querySelectorAll('#' + tab_name + ' .error')
+        if (pane_errors.length) {
+            document.location.hash = '#' + tab_name;
+            return true;
+        }
     }
     return false;
 }

changedetectionio/static/js/watch-overview.js

@@ -22,5 +22,18 @@ $(function () {
       });
   });
 
+    // checkboxes - check all
+    $("#check-all").click(function (e) {
+        $('input[type=checkbox]').not(this).prop('checked', this.checked);
+    });
+    // checkboxes - show/hide buttons
+    $("input[type=checkbox]").click(function (e) {
+        if ($('input[type=checkbox]:checked').length) {
+            $('#checkbox-operations').slideDown();
+        } else {
+            $('#checkbox-operations').slideUp();
+        }
+    });
+
 });
 

changedetectionio/static/js/watch-settings.js

@@ -1,16 +1,40 @@
 $(document).ready(function() {
     function toggle() {
-        if ($('input[name="fetch_backend"]:checked').val() != 'html_requests') {
-            $('#requests-override-options').hide();
+        if ($('input[name="fetch_backend"]:checked').val() == 'html_webdriver') {
+            if(playwright_enabled) {
+                // playwright supports headers, so hide everything else
+                // See #664
+                $('#requests-override-options #request-method').hide();
+                $('#requests-override-options #request-body').hide();
+
+                // @todo connect this one up
+                $('#ignore-status-codes-option').hide();
+            } else {
+                // selenium/webdriver doesnt support anything afaik, hide it all
+                $('#requests-override-options').hide();
+            }
+
+
             $('#webdriver-override-options').show();
+
         } else {
+
             $('#requests-override-options').show();
+            $('#requests-override-options *:hidden').show();
             $('#webdriver-override-options').hide();
         }
     }
+
     $('input[name="fetch_backend"]').click(function (e) {
         toggle();
     });
     toggle();
 
+    $('#notification-setting-reset-to-default').click(function (e) {
+        $('#notification_title').val('');
+        $('#notification_body').val('');
+        $('#notification_format').val('System default');
+        $('#notification_urls').val('');
+        e.preventDefault();
+    });
 });

changedetectionio/static/styles/.gitignore

@@ -1 +1,3 @@
 node_modules
+package-lock.json
+

changedetectionio/static/styles/parts/_arrows.scss

@@ -0,0 +1,26 @@
+.arrow {
+  border: solid #1b98f8;
+  border-width: 0 2px 2px 0;
+  display: inline-block;
+  padding: 3px;
+
+  &.right {
+    transform: rotate(-45deg);
+    -webkit-transform: rotate(-45deg);
+  }
+
+  &.left {
+    transform: rotate(135deg);
+    -webkit-transform: rotate(135deg);
+  }
+
+  &.up, &.asc {
+    transform: rotate(-135deg);
+    -webkit-transform: rotate(-135deg);
+  }
+
+  &.down, &.desc {
+    transform: rotate(45deg);
+    -webkit-transform: rotate(45deg);
+  }
+}

changedetectionio/static/styles/styles.css

@@ -1,11 +1,27 @@
 /*
  * -- BASE STYLES --
  * Most of these are inherited from Base, but I want to change a few.
- * nvm use v14.18.1
- * npm install
- * npm run build
+ * nvm use v14.18.1 && npm install && npm run build
  * or npm run watch
  */
+.arrow {
+  border: solid #1b98f8;
+  border-width: 0 2px 2px 0;
+  display: inline-block;
+  padding: 3px; }
+  .arrow.right {
+    transform: rotate(-45deg);
+    -webkit-transform: rotate(-45deg); }
+  .arrow.left {
+    transform: rotate(135deg);
+    -webkit-transform: rotate(135deg); }
+  .arrow.up, .arrow.asc {
+    transform: rotate(-135deg);
+    -webkit-transform: rotate(-135deg); }
+  .arrow.down, .arrow.desc {
+    transform: rotate(45deg);
+    -webkit-transform: rotate(45deg); }
+
 body {
   color: #333;
   background: #262626; }
@@ -55,6 +71,12 @@ code {
     white-space: normal; }
   .watch-table th {
     white-space: nowrap; }
+    .watch-table th a {
+      font-weight: normal; }
+      .watch-table th a.active {
+        font-weight: bolder; }
+      .watch-table th a.inactive .arrow {
+        display: none; }
   .watch-table .title-col a[target="_blank"]::after, .watch-table .current-diff-url::after {
     content: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAAQElEQVR42qXKwQkAIAxDUUdxtO6/RBQkQZvSi8I/pL4BoGw/XPkh4XigPmsUgh0626AjRsgxHTkUThsG2T/sIlzdTsp52kSS1wAAAABJRU5ErkJggg==);
     margin: 0 3px 0 5px; }
@@ -105,24 +127,6 @@ body:after, body:before {
   -webkit-clip-path: polygon(100% 0, 0 0, 0 77.5%, 1% 77.4%, 2% 77.1%, 3% 76.6%, 4% 75.9%, 5% 75.05%, 6% 74.05%, 7% 72.95%, 8% 71.75%, 9% 70.55%, 10% 69.3%, 11% 68.05%, 12% 66.9%, 13% 65.8%, 14% 64.8%, 15% 64%, 16% 63.35%, 17% 62.85%, 18% 62.6%, 19% 62.5%, 20% 62.65%, 21% 63%, 22% 63.5%, 23% 64.2%, 24% 65.1%, 25% 66.1%, 26% 67.2%, 27% 68.4%, 28% 69.65%, 29% 70.9%, 30% 72.15%, 31% 73.3%, 32% 74.35%, 33% 75.3%, 34% 76.1%, 35% 76.75%, 36% 77.2%, 37% 77.45%, 38% 77.5%, 39% 77.3%, 40% 76.95%, 41% 76.4%, 42% 75.65%, 43% 74.75%, 44% 73.75%, 45% 72.6%, 46% 71.4%, 47% 70.15%, 48% 68.9%, 49% 67.7%, 50% 66.55%, 51% 65.5%, 52% 64.55%, 53% 63.75%, 54% 63.15%, 55% 62.75%, 56% 62.55%, 57% 62.5%, 58% 62.7%, 59% 63.1%, 60% 63.7%, 61% 64.45%, 62% 65.4%, 63% 66.45%, 64% 67.6%, 65% 68.8%, 66% 70.05%, 67% 71.3%, 68% 72.5%, 69% 73.6%, 70% 74.65%, 71% 75.55%, 72% 76.35%, 73% 76.9%, 74% 77.3%, 75% 77.5%, 76% 77.45%, 77% 77.25%, 78% 76.8%, 79% 76.2%, 80% 75.4%, 81% 74.45%, 82% 73.4%, 83% 72.25%, 84% 71.05%, 85% 69.8%, 86% 68.55%, 87% 67.35%, 88% 66.2%, 89% 65.2%, 90% 64.3%, 91% 63.55%, 92% 63%, 93% 62.65%, 94% 62.5%, 95% 62.55%, 96% 62.8%, 97% 63.3%, 98% 63.9%, 99% 64.75%, 100% 65.7%);
   clip-path: polygon(100% 0, 0 0, 0 77.5%, 1% 77.4%, 2% 77.1%, 3% 76.6%, 4% 75.9%, 5% 75.05%, 6% 74.05%, 7% 72.95%, 8% 71.75%, 9% 70.55%, 10% 69.3%, 11% 68.05%, 12% 66.9%, 13% 65.8%, 14% 64.8%, 15% 64%, 16% 63.35%, 17% 62.85%, 18% 62.6%, 19% 62.5%, 20% 62.65%, 21% 63%, 22% 63.5%, 23% 64.2%, 24% 65.1%, 25% 66.1%, 26% 67.2%, 27% 68.4%, 28% 69.65%, 29% 70.9%, 30% 72.15%, 31% 73.3%, 32% 74.35%, 33% 75.3%, 34% 76.1%, 35% 76.75%, 36% 77.2%, 37% 77.45%, 38% 77.5%, 39% 77.3%, 40% 76.95%, 41% 76.4%, 42% 75.65%, 43% 74.75%, 44% 73.75%, 45% 72.6%, 46% 71.4%, 47% 70.15%, 48% 68.9%, 49% 67.7%, 50% 66.55%, 51% 65.5%, 52% 64.55%, 53% 63.75%, 54% 63.15%, 55% 62.75%, 56% 62.55%, 57% 62.5%, 58% 62.7%, 59% 63.1%, 60% 63.7%, 61% 64.45%, 62% 65.4%, 63% 66.45%, 64% 67.6%, 65% 68.8%, 66% 70.05%, 67% 71.3%, 68% 72.5%, 69% 73.6%, 70% 74.65%, 71% 75.55%, 72% 76.35%, 73% 76.9%, 74% 77.3%, 75% 77.5%, 76% 77.45%, 77% 77.25%, 78% 76.8%, 79% 76.2%, 80% 75.4%, 81% 74.45%, 82% 73.4%, 83% 72.25%, 84% 71.05%, 85% 69.8%, 86% 68.55%, 87% 67.35%, 88% 66.2%, 89% 65.2%, 90% 64.3%, 91% 63.55%, 92% 63%, 93% 62.65%, 94% 62.5%, 95% 62.55%, 96% 62.8%, 97% 63.3%, 98% 63.9%, 99% 64.75%, 100% 65.7%); }
 
-.arrow {
-  border: solid black;
-  border-width: 0 3px 3px 0;
-  display: inline-block;
-  padding: 3px; }
-  .arrow.right {
-    transform: rotate(-45deg);
-    -webkit-transform: rotate(-45deg); }
-  .arrow.left {
-    transform: rotate(135deg);
-    -webkit-transform: rotate(135deg); }
-  .arrow.up {
-    transform: rotate(-135deg);
-    -webkit-transform: rotate(-135deg); }
-  .arrow.down {
-    transform: rotate(45deg);
-    -webkit-transform: rotate(45deg); }
-
 .button-small {
   font-size: 85%; }
 
@@ -203,13 +207,18 @@ body:after, body:before {
   border-radius: 10px;
   margin-bottom: 1em; }
   #new-watch-form input {
-    width: auto !important;
-    display: inline-block; }
+    display: inline-block;
+    margin-bottom: 5px; }
   #new-watch-form .label {
     display: none; }
   #new-watch-form legend {
     color: #fff;
     font-weight: bold; }
+  #new-watch-form #watch-add-wrapper-zone > div {
+    display: inline-block; }
+  @media only screen and (max-width: 760px) {
+    #new-watch-form #watch-add-wrapper-zone #url {
+      width: 100%; } }
 
 #diff-col {
   padding-left: 40px; }
@@ -268,11 +277,15 @@ footer {
 #new-version-text a {
   color: #e07171; }
 
-.paused-state.state-False img {
-  opacity: 0.2; }
-
-.paused-state.state-False:hover img {
-  opacity: 0.8; }
+.watch-controls {
+  /* default */ }
+  .watch-controls .state-on img {
+    opacity: 0.8; }
+  .watch-controls img {
+    opacity: 0.2; }
+  .watch-controls img:hover {
+    transition: opacity 0.3s;
+    opacity: 0.8; }
 
 .monospaced-textarea textarea {
   width: 100%;
@@ -353,6 +366,8 @@ and also iPads specifically.
     /* Hide table headers (but not display: none;, for accessibility) */ }
     .watch-table thead, .watch-table tbody, .watch-table th, .watch-table td, .watch-table tr {
       display: block; }
+    .watch-table .last-checked > span {
+      vertical-align: middle; }
     .watch-table .last-checked::before {
       color: #555;
       content: "Last Checked "; }
@@ -370,7 +385,8 @@ and also iPads specifically.
     .watch-table td {
       /* Behave  like a "row" */
       border: none;
-      border-bottom: 1px solid #eee; }
+      border-bottom: 1px solid #eee;
+      vertical-align: middle; }
       .watch-table td:before {
         /* Top/left values mimic padding */
         top: 6px;
@@ -490,3 +506,75 @@ ul {
 
 #api-key-copy {
   color: #0078e7; }
+
+/* spinner */
+.loader,
+.loader:after {
+  border-radius: 50%;
+  width: 10px;
+  height: 10px; }
+
+.loader {
+  margin: 0px auto;
+  font-size: 3px;
+  vertical-align: middle;
+  display: inline-block;
+  text-indent: -9999em;
+  border-top: 1.1em solid rgba(38, 104, 237, 0.2);
+  border-right: 1.1em solid rgba(38, 104, 237, 0.2);
+  border-bottom: 1.1em solid rgba(38, 104, 237, 0.2);
+  border-left: 1.1em solid #2668ed;
+  -webkit-transform: translateZ(0);
+  -ms-transform: translateZ(0);
+  transform: translateZ(0);
+  -webkit-animation: load8 1.1s infinite linear;
+  animation: load8 1.1s infinite linear; }
+
+@-webkit-keyframes load8 {
+  0% {
+    -webkit-transform: rotate(0deg);
+    transform: rotate(0deg); }
+  100% {
+    -webkit-transform: rotate(360deg);
+    transform: rotate(360deg); } }
+
+@keyframes load8 {
+  0% {
+    -webkit-transform: rotate(0deg);
+    transform: rotate(0deg); }
+  100% {
+    -webkit-transform: rotate(360deg);
+    transform: rotate(360deg); } }
+
+.snapshot-age {
+  padding: 4px;
+  background-color: #dfdfdf;
+  border-radius: 3px;
+  font-weight: bold;
+  margin-bottom: 4px; }
+  .snapshot-age.error {
+    background-color: #ff0000;
+    color: #fff; }
+
+#checkbox-operations {
+  background: rgba(0, 0, 0, 0.05);
+  padding: 1em;
+  border-radius: 10px;
+  margin-bottom: 1em;
+  display: none; }
+
+.checkbox-uuid > * {
+  vertical-align: middle; }
+
+.inline-warning {
+  border: 1px solid #ff3300;
+  padding: 0.5rem;
+  border-radius: 5px;
+  color: #ff3300; }
+  .inline-warning > span {
+    display: inline-block;
+    vertical-align: middle; }
+  .inline-warning img.inline-warning-icon {
+    display: inline;
+    height: 26px;
+    vertical-align: middle; }

changedetectionio/static/styles/styles.scss

@@ -1,11 +1,11 @@
 /*
  * -- BASE STYLES --
  * Most of these are inherited from Base, but I want to change a few.
- * nvm use v14.18.1
- * npm install
- * npm run build
+ * nvm use v14.18.1 && npm install && npm run build
  * or npm run watch
  */
+@import "parts/_arrows.scss";
+
 body {
   color: #333;
   background: #262626;
@@ -70,6 +70,17 @@ code {
 
   th {
     white-space: nowrap;
+    a {
+      font-weight: normal;
+      &.active {
+        font-weight: bolder;
+      }
+      &.inactive {
+        .arrow {
+          display: none;
+        }
+      }
+    }
   }
 
   .title-col a[target="_blank"]::after, .current-diff-url::after {
@@ -139,36 +150,13 @@ body:after, body:before {
   clip-path: polygon(100% 0, 0 0, 0 77.5%, 1% 77.4%, 2% 77.1%, 3% 76.6%, 4% 75.9%, 5% 75.05%, 6% 74.05%, 7% 72.95%, 8% 71.75%, 9% 70.55%, 10% 69.3%, 11% 68.05%, 12% 66.9%, 13% 65.8%, 14% 64.8%, 15% 64%, 16% 63.35%, 17% 62.85%, 18% 62.6%, 19% 62.5%, 20% 62.65%, 21% 63%, 22% 63.5%, 23% 64.2%, 24% 65.1%, 25% 66.1%, 26% 67.2%, 27% 68.4%, 28% 69.65%, 29% 70.9%, 30% 72.15%, 31% 73.3%, 32% 74.35%, 33% 75.3%, 34% 76.1%, 35% 76.75%, 36% 77.2%, 37% 77.45%, 38% 77.5%, 39% 77.3%, 40% 76.95%, 41% 76.4%, 42% 75.65%, 43% 74.75%, 44% 73.75%, 45% 72.6%, 46% 71.4%, 47% 70.15%, 48% 68.9%, 49% 67.7%, 50% 66.55%, 51% 65.5%, 52% 64.55%, 53% 63.75%, 54% 63.15%, 55% 62.75%, 56% 62.55%, 57% 62.5%, 58% 62.7%, 59% 63.1%, 60% 63.7%, 61% 64.45%, 62% 65.4%, 63% 66.45%, 64% 67.6%, 65% 68.8%, 66% 70.05%, 67% 71.3%, 68% 72.5%, 69% 73.6%, 70% 74.65%, 71% 75.55%, 72% 76.35%, 73% 76.9%, 74% 77.3%, 75% 77.5%, 76% 77.45%, 77% 77.25%, 78% 76.8%, 79% 76.2%, 80% 75.4%, 81% 74.45%, 82% 73.4%, 83% 72.25%, 84% 71.05%, 85% 69.8%, 86% 68.55%, 87% 67.35%, 88% 66.2%, 89% 65.2%, 90% 64.3%, 91% 63.55%, 92% 63%, 93% 62.65%, 94% 62.5%, 95% 62.55%, 96% 62.8%, 97% 63.3%, 98% 63.9%, 99% 64.75%, 100% 65.7%)
 }
 
-.arrow {
-  border: solid black;
-  border-width: 0 3px 3px 0;
-  display: inline-block;
-  padding: 3px;
-    &.right {
-      transform: rotate(-45deg);
-      -webkit-transform: rotate(-45deg);
-    }
-    &.left {
-      transform: rotate(135deg);
-      -webkit-transform: rotate(135deg);
-    }
-    &.up {
-      transform: rotate(-135deg);
-      -webkit-transform: rotate(-135deg);
-    }
-    &.down {
-      transform: rotate(45deg);
-      -webkit-transform: rotate(45deg);
-    }
-}
-
 .button-small {
   font-size: 85%;
 }
 
 .fetch-error {
   padding-top: 1em;
-  font-size: 60%;
+  font-size: 80%;
   max-width: 400px;
   display: block;
 }
@@ -269,8 +257,8 @@ body:after, body:before {
   border-radius: 10px;
   margin-bottom: 1em;
   input {
-    width: auto !important;
     display: inline-block;
+    margin-bottom: 5px;
   }
   .label {
     display: none;
@@ -279,6 +267,17 @@ body:after, body:before {
     color: #fff;
     font-weight: bold;
   }
+
+  #watch-add-wrapper-zone {
+    > div {
+      display: inline-block;
+    }
+    @media only screen and (max-width: 760px) {
+      #url {
+        width: 100%;
+      }
+    }
+  }
 }
 
 
@@ -353,14 +352,25 @@ footer {
   color: #e07171;
 }
 
-.paused-state {
-  &.state-False img {
+.watch-controls {
+  .state-on {
+    img {
+      opacity: 0.8;
+    }
+  }
+
+  /* default */
+  img {
     opacity: 0.2;
   }
 
-  &.state-False:hover img {
-    opacity: 0.8;
+  img {
+    &:hover {
+      transition: opacity 0.3s;
+      opacity: 0.8;
+    }
   }
+
 }
 
 .monospaced-textarea {
@@ -487,6 +497,12 @@ and also iPads specifically.
       display: block;
     }
 
+    .last-checked {
+      > span {
+        vertical-align: middle;
+      }
+    }
+
     .last-checked::before {
       color: #555;
       content: "Last Checked ";
@@ -517,7 +533,7 @@ and also iPads specifically.
       /* Behave  like a "row" */
       border: none;
       border-bottom: 1px solid #eee;
-
+      vertical-align: middle;
       &:before {
         /* Top/left values mimic padding */
         top: 6px;
@@ -701,3 +717,90 @@ ul {
 #api-key-copy {
   color: #0078e7;
 }
+
+/* spinner */
+.loader,
+.loader:after {
+  border-radius: 50%;
+  width: 10px;
+  height: 10px;
+}
+.loader {
+  margin: 0px auto;
+  font-size: 3px;
+  vertical-align: middle;
+  display: inline-block;
+  text-indent: -9999em;
+  border-top: 1.1em solid rgba(38,104,237, 0.2);
+  border-right: 1.1em solid rgba(38,104,237, 0.2);
+  border-bottom: 1.1em solid rgba(38,104,237, 0.2);
+  border-left: 1.1em solid #2668ed;
+  -webkit-transform: translateZ(0);
+  -ms-transform: translateZ(0);
+  transform: translateZ(0);
+  -webkit-animation: load8 1.1s infinite linear;
+  animation: load8 1.1s infinite linear;
+}
+@-webkit-keyframes load8 {
+  0% {
+    -webkit-transform: rotate(0deg);
+    transform: rotate(0deg);
+  }
+  100% {
+    -webkit-transform: rotate(360deg);
+    transform: rotate(360deg);
+  }
+}
+@keyframes load8 {
+  0% {
+    -webkit-transform: rotate(0deg);
+    transform: rotate(0deg);
+  }
+  100% {
+    -webkit-transform: rotate(360deg);
+    transform: rotate(360deg);
+  }
+}
+
+.snapshot-age {
+  padding: 4px;
+  background-color: #dfdfdf;
+  border-radius: 3px;
+  font-weight: bold;
+  margin-bottom: 4px;
+  &.error {
+    background-color: #ff0000;
+    color: #fff;
+  }
+}
+
+#checkbox-operations {
+  background: rgba(0, 0, 0, 0.05);
+  padding: 1em;
+  border-radius: 10px;
+  margin-bottom: 1em;
+  display: none;
+}
+.checkbox-uuid {
+  > * {
+    vertical-align: middle;
+  }
+}
+
+.inline-warning {
+  > span {
+    display: inline-block;
+    vertical-align: middle;
+  }
+
+  img.inline-warning-icon {
+    display: inline;
+    height: 26px;
+    vertical-align: middle;
+  }
+
+  border: 1px solid #ff3300;
+  padding: 0.5rem;
+  border-radius: 5px;
+  color: #ff3300;
+}

changedetectionio/store.py

@@ -8,7 +8,7 @@ import threading
 import time
 import uuid as uuid_builder
 from copy import deepcopy
-from os import mkdir, path, unlink
+from os import path, unlink
 from threading import Lock
 import re
 import requests
@@ -30,14 +30,14 @@ class ChangeDetectionStore:
     def __init__(self, datastore_path="/datastore", include_default_watches=True, version_tag="0.0.0"):
         # Should only be active for docker
         # logging.basicConfig(filename='/dev/stdout', level=logging.INFO)
-        self.needs_write = False
+        self.__data = App.model()
         self.datastore_path = datastore_path
         self.json_store_path = "{}/url-watches.json".format(self.datastore_path)
+        self.needs_write = False
         self.proxy_list = None
+        self.start_time = time.time()
         self.stop_thread = False
 
-        self.__data = App.model()
-
         # Base definition for all watchers
         # deepcopy part of #569 - not sure why its needed exactly
         self.generic_definition = deepcopy(Watch.model(datastore_path = datastore_path, default={}))
@@ -81,8 +81,6 @@ class ChangeDetectionStore:
         except (FileNotFoundError, json.decoder.JSONDecodeError):
             if include_default_watches:
                 print("Creating JSON store at", self.datastore_path)
-
-                self.add_watch(url='http://www.quotationspage.com/random.php', tag='test')
                 self.add_watch(url='https://news.ycombinator.com/', tag='Tech news')
                 self.add_watch(url='https://changedetection.io/CHANGELOG.txt', tag='changedetection.io')
 
@@ -113,9 +111,7 @@ class ChangeDetectionStore:
             self.__data['settings']['application']['api_access_token'] = secret
 
         # Proxy list support - available as a selection in settings when text file is imported
-        # CSV list
-        # "name, address", or just "name"
-        proxy_list_file = "{}/proxies.txt".format(self.datastore_path)
+        proxy_list_file = "{}/proxies.json".format(self.datastore_path)
         if path.isfile(proxy_list_file):
             self.import_proxy_list(proxy_list_file)
 
@@ -158,13 +154,11 @@ class ChangeDetectionStore:
     @property
     def threshold_seconds(self):
         seconds = 0
-        mtable = {'seconds': 1, 'minutes': 60, 'hours': 3600, 'days': 86400, 'weeks': 86400 * 7}
-        minimum_seconds_recheck_time = int(os.getenv('MINIMUM_SECONDS_RECHECK_TIME', 60))
-        for m, n in mtable.items():
+        for m, n in Watch.mtable.items():
             x = self.__data['settings']['requests']['time_between_check'].get(m)
             if x:
                 seconds += x * n
-        return max(seconds, minimum_seconds_recheck_time)
+        return seconds
 
     @property
     def has_unviewed(self):
@@ -246,20 +240,26 @@ class ChangeDetectionStore:
 
         return False
 
-    def get_val(self, uuid, val):
-        # Probably their should be dict...
-        return self.data['watching'][uuid].get(val)
-
     # Remove a watchs data but keep the entry (URL etc)
-    def scrub_watch(self, uuid):
+    def clear_watch_history(self, uuid):
         import pathlib
 
-        self.__data['watching'][uuid].update({'history': {}, 'last_checked': 0, 'last_changed': 0, 'previous_md5': False})
-        self.needs_write_urgent = True
+        self.__data['watching'][uuid].update(
+            {'last_checked': 0,
+             'last_viewed': 0,
+             'previous_md5': False,
+             'last_notification_error': False,
+             'last_error': False})
 
-        for item in pathlib.Path(self.datastore_path).rglob(uuid+"/*.txt"):
+        # JSON Data, Screenshots, Textfiles (history index and snapshots), HTML in the future etc
+        for item in pathlib.Path(os.path.join(self.datastore_path, uuid)).rglob("*.*"):
             unlink(item)
 
+        # Force the attr to recalculate
+        bump = self.__data['watching'][uuid].history
+
+        self.needs_write_urgent = True
+
     def add_watch(self, url, tag="", extras=None, write_to_disk_now=True):
 
         if extras is None:
@@ -280,14 +280,16 @@ class ChangeDetectionStore:
                                      headers={'App-Guid': self.__data['app_guid']})
                 res = r.json()
 
-                # List of permisable stuff we accept from the wild internet
+                # List of permissible attributes we accept from the wild internet
                 for k in ['url', 'tag',
-                                   'paused', 'title',
-                                   'previous_md5', 'headers',
-                                   'body', 'method',
-                                   'ignore_text', 'css_filter',
-                                   'subtractive_selectors', 'trigger_text',
-                                   'extract_title_as_title', 'extract_text']:
+                          'paused', 'title',
+                          'previous_md5', 'headers',
+                          'body', 'method',
+                          'ignore_text', 'css_filter',
+                          'subtractive_selectors', 'trigger_text',
+                          'extract_title_as_title', 'extract_text',
+                          'text_should_not_be_present',
+                          'webdriver_js_execute_code']:
                     if res.get(k):
                         apply_extras[k] = res[k]
 
@@ -314,25 +316,12 @@ class ChangeDetectionStore:
             new_watch.update(apply_extras)
             self.__data['watching'][new_uuid]=new_watch
 
-        # Get the directory ready
-        output_path = "{}/{}".format(self.datastore_path, new_uuid)
-        try:
-            mkdir(output_path)
-        except FileExistsError:
-            print(output_path, "already exists.")
+        self.__data['watching'][new_uuid].ensure_data_dir_exists()
 
         if write_to_disk_now:
             self.sync_to_json()
         return new_uuid
 
-    def get_screenshot(self, watch_uuid):
-        output_path = "{}/{}".format(self.datastore_path, watch_uuid)
-        fname = "{}/last-screenshot.png".format(output_path)
-        if path.isfile(fname):
-            return fname
-
-        return False
-
     def visualselector_data_is_ready(self, watch_uuid):
         output_path = "{}/{}".format(self.datastore_path, watch_uuid)
         screenshot_filename = "{}/last-screenshot.png".format(output_path)
@@ -343,17 +332,38 @@ class ChangeDetectionStore:
         return False
 
     # Save as PNG, PNG is larger but better for doing visual diff in the future
-    def save_screenshot(self, watch_uuid, screenshot: bytes):
-        output_path = "{}/{}".format(self.datastore_path, watch_uuid)
-        fname = "{}/last-screenshot.png".format(output_path)
-        with open(fname, 'wb') as f:
+    def save_screenshot(self, watch_uuid, screenshot: bytes, as_error=False):
+        if not self.data['watching'].get(watch_uuid):
+            return
+
+        if as_error:
+            target_path = os.path.join(self.datastore_path, watch_uuid, "last-error-screenshot.png")
+        else:
+            target_path = os.path.join(self.datastore_path, watch_uuid, "last-screenshot.png")
+
+        self.data['watching'][watch_uuid].ensure_data_dir_exists()
+
+        with open(target_path, 'wb') as f:
             f.write(screenshot)
             f.close()
 
-    def save_xpath_data(self, watch_uuid, data):
-        output_path = "{}/{}".format(self.datastore_path, watch_uuid)
-        fname = "{}/elements.json".format(output_path)
-        with open(fname, 'w') as f:
+    def save_error_text(self, watch_uuid, contents):
+        if not self.data['watching'].get(watch_uuid):
+            return
+        target_path = os.path.join(self.datastore_path, watch_uuid, "last-error.txt")
+
+        with open(target_path, 'w') as f:
+            f.write(contents)
+
+    def save_xpath_data(self, watch_uuid, data, as_error=False):
+        if not self.data['watching'].get(watch_uuid):
+            return
+        if as_error:
+            target_path = os.path.join(self.datastore_path, watch_uuid, "elements-error.json")
+        else:
+            target_path = os.path.join(self.datastore_path, watch_uuid, "elements.json")
+
+        with open(target_path, 'w') as f:
             f.write(json.dumps(data))
             f.close()
 
@@ -423,20 +433,42 @@ class ChangeDetectionStore:
                     unlink(item)
 
     def import_proxy_list(self, filename):
-        import csv
-        with open(filename, newline='') as f:
-            reader = csv.reader(f, skipinitialspace=True)
-            # @todo This loop can could be improved
-            l = []
-            for row in reader:
-                if len(row):
-                    if len(row)>=2:
-                        l.append(tuple(row[:2]))
-                    else:
-                        l.append(tuple([row[0], row[0]]))
-            self.proxy_list = l if len(l) else None
+        with open(filename) as f:
+            self.proxy_list = json.load(f)
+            print ("Registered proxy list", list(self.proxy_list.keys()))
 
 
+    def get_preferred_proxy_for_watch(self, uuid):
+        """
+        Returns the preferred proxy by ID key
+        :param uuid: UUID
+        :return: proxy "key" id
+        """
+
+        proxy_id = None
+        if self.proxy_list is None:
+            return None
+
+        # If its a valid one
+        watch = self.data['watching'].get(uuid)
+
+        if watch.get('proxy') and watch.get('proxy') in list(self.proxy_list.keys()):
+            return watch.get('proxy')
+
+        # not valid (including None), try the system one
+        else:
+            system_proxy_id = self.data['settings']['requests'].get('proxy')
+            # Is not None and exists
+            if self.proxy_list.get(system_proxy_id):
+                return system_proxy_id
+
+        # Fallback - Did not resolve anything, use the first available
+        if system_proxy_id is None:
+            first_default = list(self.proxy_list)[0]
+            return first_default
+
+        return None
+
     # Run all updates
     # IMPORTANT - Each update could be run even when they have a new install and the schema is correct
     #             So therefor - each `update_n` should be very careful about checking if it needs to actually run
@@ -507,3 +539,47 @@ class ChangeDetectionStore:
                 # But we should set it back to a empty dict so we don't break if this schema runs on an earlier version.
                 # In the distant future we can remove this entirely
                 self.data['watching'][uuid]['history'] = {}
+
+    # We incorrectly stored last_changed when there was not a change, and then confused the output list table
+    def update_3(self):
+        # see https://github.com/dgtlmoon/changedetection.io/pull/835
+        return
+
+    # `last_changed` not needed, we pull that information from the history.txt index
+    def update_4(self):
+        for uuid, watch in self.data['watching'].items():
+            try:
+                # Remove it from the struct
+                del(watch['last_changed'])
+            except:
+                continue
+        return
+
+    def update_5(self):
+        # If the watch notification body, title look the same as the global one, unset it, so the watch defaults back to using the main settings
+        # In other words - the watch notification_title and notification_body are not needed if they are the same as the default one
+        current_system_body = self.data['settings']['application']['notification_body'].translate(str.maketrans('', '', "\r\n "))
+        current_system_title = self.data['settings']['application']['notification_body'].translate(str.maketrans('', '', "\r\n "))
+        for uuid, watch in self.data['watching'].items():
+            try:
+                watch_body = watch.get('notification_body', '')
+                if watch_body and watch_body.translate(str.maketrans('', '', "\r\n ")) == current_system_body:
+                    # Looks the same as the default one, so unset it
+                    watch['notification_body'] = None
+
+                watch_title = watch.get('notification_title', '')
+                if watch_title and watch_title.translate(str.maketrans('', '', "\r\n ")) == current_system_title:
+                    # Looks the same as the default one, so unset it
+                    watch['notification_title'] = None
+            except Exception as e:
+                continue
+        return
+
+
+    # We incorrectly used common header overrides that should only apply to Requests
+    # These are now handled in content_fetcher::html_requests and shouldnt be passed to Playwright/Selenium
+    def update_7(self):
+        # These were hard-coded in early versions
+        for v in ['User-Agent', 'Accept', 'Accept-Encoding', 'Accept-Language']:
+            if self.data['settings']['headers'].get(v):
+                del self.data['settings']['headers'][v]

changedetectionio/templates/_common_fields.jinja

@@ -1,20 +1,21 @@
 
 {% from '_helpers.jinja' import render_field %}
 
-{% macro render_common_settings_form(form, current_base_url, emailprefix) %}
+{% macro render_common_settings_form(form, emailprefix, settings_application) %}
                         <div class="pure-control-group">
                             {{ render_field(form.notification_urls, rows=5, placeholder="Examples:
     Gitter - gitter://token/room
     Office365 - o365://TenantID:AccountEmail/ClientID/ClientSecret/TargetEmail
     AWS SNS - sns://AccessKeyID/AccessSecretKey/RegionName/+PhoneNo
-    SMTPS - mailtos://user:pass@mail.domain.com?to=receivingAddress@example.com", class="notification-urls")
+    SMTPS - mailtos://user:pass@mail.domain.com?to=receivingAddress@example.com",
+    class="notification-urls" )
                             }}
                             <div class="pure-form-message-inline">
                               <ul>
                                 <li>Use <a target=_new href="https://github.com/caronc/apprise">AppRise URLs</a> for notification to just about any service! <i><a target=_new href="https://github.com/dgtlmoon/changedetection.io/wiki/Notification-configuration-notes">Please read the notification services wiki here for important configuration notes</a></i>.</li>
                                 <li><code>discord://</code> only supports a maximum <strong>2,000 characters</strong> of notification text, including the title.</li>
                                 <li><code>tgram://</code> bots cant send messages to other bots, so you should specify chat ID of non-bot user.</li>
-                                <li>Go here for <a href="{{url_for('notification_logs')}}">notification debug logs</a></li>
+                                <li><code>tgram://</code> only supports very limited HTML and can fail when extra tags are sent, <a href="https://core.telegram.org/bots/api#html-style">read more here</a> (or use plaintext/markdown format)</li>
                               </ul>
                             </div>
                             <br/>
@@ -22,18 +23,20 @@
 {% if emailprefix %}
                             <a id="add-email-helper" class="pure-button button-secondary button-xsmall" style="font-size: 70%">Add email</a>
 {% endif %}
+                            <a href="{{url_for('notification_logs')}}" class="pure-button button-secondary button-xsmall" style="font-size: 70%">Notification debug logs</a>
                         </div>
                         <div id="notification-customisation" class="pure-control-group">
                             <div class="pure-control-group">
-                                {{ render_field(form.notification_title, class="m-d notification-title") }}
+                                {{ render_field(form.notification_title, class="m-d notification-title", placeholder=settings_application['notification_title']) }}
                                 <span class="pure-form-message-inline">Title for all notifications</span>
                             </div>
                             <div class="pure-control-group">
-                                {{ render_field(form.notification_body , rows=5, class="notification-body") }}
+                                {{ render_field(form.notification_body , rows=5, class="notification-body", placeholder=settings_application['notification_body']) }}
                                 <span class="pure-form-message-inline">Body for all notifications</span>
                             </div>
                             <div class="pure-control-group">
-                                {{ render_field(form.notification_format , rows=5, class="notification-format") }}
+                            <!-- unsure -->
+                                {{ render_field(form.notification_format , class="notification-format") }}
                                 <span class="pure-form-message-inline">Format for all notifications</span>
                             </div>
                             <div class="pure-controls">
@@ -93,7 +96,7 @@
                                 </table>
                                 <br/>
                                 URLs generated by changedetection.io (such as <code>{diff_url}</code>) require the <code>BASE_URL</code> environment variable set.<br/>
-                                Your <code>BASE_URL</code> var is currently "{{current_base_url}}"
+                                Your <code>BASE_URL</code> var is currently "{{settings_application['current_base_url']}}"
                             </span>
                             </div>
                         </div>

changedetectionio/templates/_pagination.jinja

@@ -0,0 +1,7 @@
+{% macro pagination(sorted_watches, total_per_page, current_page) %}
+  {{ sorted_watches|length }}
+
+  {% for row in sorted_watches|batch(total_per_page, ' ') %}
+    {{ loop.index}}
+  {% endfor %}
+{% endmacro %}

changedetectionio/templates/clear_all_history.html

@@ -3,22 +3,22 @@
 {% block content %}
 <div class="edit-form">
     <div class="box-wrap inner">
-    <form class="pure-form pure-form-stacked" action="{{url_for('scrub_page')}}" method="POST">
+    <form class="pure-form pure-form-stacked" action="{{url_for('clear_all_history')}}" method="POST">
         <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
         <fieldset>
             <div class="pure-control-group">
-                This will remove ALL version snapshots/data, but keep your list of URLs. <br/>
+                This will remove version history (snapshots) for ALL watches, but keep your list of URLs! <br/>
                 You may like to use the <strong>BACKUP</strong> link first.<br/>
             </div>
             <br/>
             <div class="pure-control-group">
                 <label for="confirmtext">Confirmation text</label>
                 <input type="text" id="confirmtext" required="" name="confirmtext" value="" size="10"/>
-                <span class="pure-form-message-inline">Type in the word <strong>scrub</strong> to confirm that you understand!</span>
+                <span class="pure-form-message-inline">Type in the word <strong>clear</strong> to confirm that you understand.</span>
             </div>
             <br/>
             <div class="pure-control-group">
-                <button type="submit" class="pure-button pure-button-primary">Scrub!</button>
+                <button type="submit" class="pure-button pure-button-primary">Clear History!</button>
             </div>
             <br/>
             <div class="pure-control-group">

changedetectionio/templates/diff.html

@@ -3,6 +3,9 @@
 {% block content %}
 <script>
     const screenshot_url="{{url_for('static_content', group='screenshot', filename=uuid)}}";
+    {% if last_error_screenshot %}
+    const error_screenshot_url="{{url_for('static_content', group='screenshot', filename=uuid, error_screenshot=1) }}";
+    {% endif %}
 </script>
 <script type="text/javascript" src="{{url_for('static_content', group='js', filename='diff-overview.js')}}" defer></script>
 
@@ -22,7 +25,7 @@
             {% if versions|length >= 1 %}
             <label for="diff-version">Compare newest (<span id="current-v-date"></span>) with</label>
             <select id="diff-version" name="previous_version">
-                {% for version in versions %}
+                {% for version in versions|reverse %}
                 <option value="{{version}}" {% if version== current_previous_version %} selected="" {% endif %}>
                     {{version}}
                 </option>
@@ -43,15 +46,31 @@
 <script type="text/javascript" src="{{url_for('static_content', group='js', filename='tabs.js')}}" defer></script>
 <div class="tabs">
     <ul>
-        <li class="tab" id="default-tab"><a href="#text">Text</a></li>
+        {% if last_error_text %}<li class="tab" id="error-text-tab"><a href="#error-text">Error Text</a></li> {% endif %}
+        {% if last_error_screenshot %}<li class="tab" id="error-screenshot-tab"><a href="#error-screenshot">Error Screenshot</a></li> {% endif %}
+        <li class="tab" id=""><a href="#text">Text</a></li>
         <li class="tab" id="screenshot-tab"><a href="#screenshot">Screenshot</a></li>
     </ul>
 </div>
 
 <div id="diff-ui">
+    <div class="tab-pane-inner" id="error-text">
+        <div class="snapshot-age error">{{watch_a.error_text_ctime|format_seconds_ago}} seconds ago</div>
+        <pre>
+            {{ last_error_text }}
+        </pre>
+    </div>
+
+    <div class="tab-pane-inner" id="error-screenshot">
+        <div class="snapshot-age error">{{watch_a.snapshot_error_screenshot_ctime|format_seconds_ago}} seconds ago</div>
+        <img id="error-screenshot-img"  style="max-width: 80%" alt="Current error-ing screenshot from most recent request"/>
+    </div>
+
      <div class="tab-pane-inner" id="text">
          <div class="tip">Pro-tip: Use <strong>show current snapshot</strong> tab to visualise what will be ignored.
          </div>
+         <div class="snapshot-age">{{watch_a.snapshot_text_ctime|format_timestamp_timeago}}</div>
+
          <table>
              <tbody>
              <tr>
@@ -70,10 +89,10 @@
          <div class="tip">
              For now, Differences are performed on text, not graphically, only the latest screenshot is available.
          </div>
-         </br>
          {% if is_html_webdriver %}
            {% if screenshot %}
-             <img style="max-width: 80%" id="screenshot-img" alt="Current screenshot from most recent request"/>
+            <div class="snapshot-age">{{watch_a.snapshot_screenshot_ctime|format_timestamp_timeago}}</div>
+            <img style="max-width: 80%" id="screenshot-img" alt="Current screenshot from most recent request"/>
            {% else %}
               No screenshot available just yet! Try rechecking the page.
            {% endif %}
@@ -88,7 +107,6 @@
 
 <script defer="">
 
-
 var a = document.getElementById('a');
 var b = document.getElementById('b');
 var result = document.getElementById('result');

changedetectionio/templates/edit.html

@@ -7,6 +7,7 @@
     const notification_base_url="{{url_for('ajax_callback_send_notification_test')}}";
     const watch_visual_selector_data_url="{{url_for('static_content', group='visual_selector_data', filename=uuid)}}";
     const screenshot_url="{{url_for('static_content', group='screenshot', filename=uuid)}}";
+    const playwright_enabled={% if playwright_enabled %} true {% else %} false {% endif %};
 
 {% if emailprefix %}
     const email_notification_prefix=JSON.parse('{{ emailprefix|tojson }}');
@@ -22,9 +23,9 @@
 
     <div class="tabs collapsable">
         <ul>
-            <li class="tab" id="default-tab"><a href="#general">General</a></li>
+            <li class="tab" id=""><a href="#general">General</a></li>
             <li class="tab"><a href="#request">Request</a></li>
-            <li class="tab"><a id="visualselector-tab" href="#visualselector">Visual Selector</a></li>
+            <li class="tab"><a id="visualselector-tab" href="#visualselector">Visual Filter Selector</a></li>
             <li class="tab"><a href="#filters-and-triggers">Filters &amp; Triggers</a></li>
             <li class="tab"><a href="#notifications">Notifications</a></li>
         </ul>
@@ -32,14 +33,15 @@
 
     <div class="box-wrap inner">
         <form class="pure-form pure-form-stacked"
-              action="{{ url_for('edit_page', uuid=uuid, next = request.args.get('next') ) }}" method="POST">
+              action="{{ url_for('edit_page', uuid=uuid, next = request.args.get('next'), unpause_on_save = request.args.get('unpause_on_save')) }}" method="POST">
              <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
 
             <div class="tab-pane-inner" id="general">
                 <fieldset>
                     <div class="pure-control-group">
                         {{ render_field(form.url, placeholder="https://...", required=true, class="m-d") }}
-                        <span class="pure-form-message-inline">Some sites use JavaScript to create the content, for this you should <a href="https://github.com/dgtlmoon/changedetection.io/wiki/Fetching-pages-with-WebDriver">use the Chrome/WebDriver Fetcher</a></span>
+                        <span class="pure-form-message-inline">Some sites use JavaScript to create the content, for this you should <a href="https://github.com/dgtlmoon/changedetection.io/wiki/Fetching-pages-with-WebDriver">use the Chrome/WebDriver Fetcher</a></span><br/>
+                        <span class="pure-form-message-inline">You can use variables in the URL, perfect for inserting the current date and other logic, <a href="https://github.com/dgtlmoon/changedetection.io/wiki/Handling-variables-in-the-watched-URL">help and examples here</a></span><br/>
                     </div>
                     <div class="pure-control-group">
                         {{ render_field(form.title, class="m-d") }}
@@ -61,6 +63,12 @@
                     <div class="pure-control-group">
                         {{ render_checkbox_field(form.extract_title_as_title) }}
                     </div>
+                    <div class="pure-control-group">
+                        {{ render_checkbox_field(form.filter_failure_notification_send) }}
+                        <span class="pure-form-message-inline">
+                         Sends a notification when the filter can no longer be seen on the page, good for knowing when the page changed and your filter will not work anymore.
+                        </span>
+                    </div>
                 </fieldset>
             </div>
 
@@ -70,6 +78,7 @@
                         <span class="pure-form-message-inline">
                             <p>Use the <strong>Basic</strong> method (default) where your watched site doesn't need Javascript to render.</p>
                             <p>The <strong>Chrome/Javascript</strong> method requires a network connection to a running WebDriver+Chrome server, set by the ENV var 'WEBDRIVER_URL'. </p>
+                            Tip: <a href="https://github.com/dgtlmoon/changedetection.io/wiki/Proxy-configuration#brightdata-proxy-support">Connect using BrightData Proxies, find out more here.</a>
                         </span>
                     </div>
                 {% if form.proxy %}
@@ -80,34 +89,43 @@
                         </span>
                     </div>
                 {% endif %}
-                <fieldset id="webdriver-override-options">
-                    <div class="pure-form-message-inline">
-                        <strong>If you're having trouble waiting for the page to be fully rendered (text missing etc), try increasing the 'wait' time here.</strong>
-                        <br/>
-                        This will wait <i>n</i> seconds before extracting the text.
+                    <div  class="pure-control-group inline-radio">
+                        {{ render_checkbox_field(form.ignore_status_codes) }}
                     </div>
+                <fieldset id="webdriver-override-options">
                     <div class="pure-control-group">
                         {{ render_field(form.webdriver_delay) }}
+                        <div class="pure-form-message-inline">
+                            <strong>If you're having trouble waiting for the page to be fully rendered (text missing etc), try increasing the 'wait' time here.</strong>
+                            <br/>
+                            This will wait <i>n</i> seconds before extracting the text.
+                            {% if using_global_webdriver_wait %}
+                            <br/><strong>Using the current global default settings</strong>
+                            {% endif %}
+                        </div>
                     </div>
-                    {% if using_global_webdriver_wait %}
-                    <div class="pure-form-message-inline">
-                        <strong>Using the current global default settings</strong>
+                    <div class="pure-control-group">
+                        {{ render_field(form.webdriver_js_execute_code) }}
+                        <div class="pure-form-message-inline">
+                            Run this code before performing change detection, handy for filling in fields and other actions <a href="https://github.com/dgtlmoon/changedetection.io/wiki/Run-JavaScript-before-change-detection">More help and examples here</a>
+                        </div>
                     </div>
-                    {% endif %}
                 </fieldset>
                 <fieldset class="pure-group" id="requests-override-options">
-                    <div class="pure-form-message-inline">
-                        <strong>Request override is currently only used by the <i>Basic fast Plaintext/HTTP Client</i> method.</strong>
-                    </div>
-                    <div class="pure-control-group">
+                    {% if not playwright_enabled %}
+                        <div class="pure-form-message-inline">
+                            <strong>Request override is currently only used by the <i>Basic fast Plaintext/HTTP Client</i> method.</strong>
+                        </div>
+                    {% endif %}
+                    <div class="pure-control-group" id="request-method">
                         {{ render_field(form.method) }}
                     </div>
-                    <div class="pure-control-group">
+                    <div class="pure-control-group" id="request-headers">
 {{ render_field(form.headers, rows=5, placeholder="Example
 Cookie: foobar
 User-Agent: wonderbra 1.0") }}
                     </div>
-                    <div class="pure-control-group">
+                    <div class="pure-control-group" id="request-body">
                                         {{ render_field(form.body, rows=5, placeholder="Example
 {
    \"name\":\"John\",
@@ -115,18 +133,24 @@ User-Agent: wonderbra 1.0") }}
    \"car\":null
 }") }}
                     </div>
-                    <div>
-                        {{ render_checkbox_field(form.ignore_status_codes) }}
-                    </div>
                 </fieldset>
-                <br/>
             </div>
 
             <div class="tab-pane-inner" id="notifications">
-                <strong>Note: <i>These settings override the global settings for this watch.</i></strong>
                 <fieldset>
-                    <div class="field-group">
-                        {{ render_common_settings_form(form, current_base_url, emailprefix) }}
+                    <div  class="pure-control-group inline-radio">
+                      {{ render_checkbox_field(form.notification_muted) }}
+                    </div>
+                    <div class="field-group" id="notification-field-group">
+                        {% if has_default_notification_urls %}
+                        <div class="inline-warning">
+                            <img class="inline-warning-icon" src="{{url_for('static_content', group='images', filename='notice.svg')}}" alt="Look out!" title="Lookout!"/>
+                            There are <a href="{{ url_for('settings_page')}}#notifications">system-wide notification URLs enabled</a>, this form will override notification settings for this watch only &dash; an empty Notification URL list here will still send notifications.
+                        </div>
+                        {% endif %}
+                        <a href="#notifications" id="notification-setting-reset-to-default" class="pure-button button-xsmall" style="right: 20px; top: 20px; position: absolute; background-color: #5f42dd; border-radius: 4px; font-size: 70%; color: #fff">Use system defaults</a>
+
+                        {{ render_common_settings_form(form, emailprefix, settings_application) }}
                     </div>
                 </fieldset>
             </div>
@@ -143,18 +167,43 @@ User-Agent: wonderbra 1.0") }}
                                 </li>
                             </ul>
                     </div>
+                    <fieldset>
+                        <div class="pure-control-group">
+                            {{ render_checkbox_field(form.check_unique_lines) }}
+                            <span class="pure-form-message-inline">Good for websites that just move the content around, and you want to know when NEW content is added, compares new lines against all history for this watch.</span>
+                        </div>
+                    </fieldset>
                     <div class="pure-control-group">
-                        {{ render_field(form.css_filter, placeholder=".class-name or #some-id, or other CSS selector rule.",
-                        class="m-d") }}
+                        {% set field = render_field(form.css_filter,
+                            placeholder=".class-name or #some-id, or other CSS selector rule.",
+                            class="m-d")
+                        %}
+                        {{ field }}
+                        {% if '/text()' in  field %}
+                          <span class="pure-form-message-inline"><strong>Note!: //text() function does not work where the &lt;element&gt; contains &lt;![CDATA[]]&gt;</strong></span><br/>
+                        {% endif %}
                         <span class="pure-form-message-inline">
                     <ul>
                         <li>CSS - Limit text to this CSS rule, only text matching this CSS rule is included.</li>
-                        <li>JSON - Limit text to this JSON rule, using <a href="https://pypi.org/project/jsonpath-ng/">JSONPath</a>, prefix with <code>"json:"</code>, use <code>json:$</code> to force re-formatting if required,  <a
-                                href="https://jsonpath.com/" target="new">test your JSONPath here</a></li>
-                        <li>XPath - Limit text to this XPath rule, simply start with a forward-slash, example  <code>//*[contains(@class, 'sametext')]</code> or <code>xpath://*[contains(@class, 'sametext')]</code>, <a
+                        <li>JSON - Limit text to this JSON rule, using either <a href="https://pypi.org/project/jsonpath-ng/" target="new">JSONPath</a> or <a href="https://stedolan.github.io/jq/" target="new">jq</a> (if installed).
+                            <ul>
+                                <li>JSONPath: Prefix with <code>json:</code>, use <code>json:$</code> to force re-formatting if required,  <a href="https://jsonpath.com/" target="new">test your JSONPath here</a>.</li>
+                                {% if jq_support %}
+                                <li>jq: Prefix with <code>jq:</code> and <a href="https://jqplay.org/" target="new">test your jq here</a>. Using <a href="https://stedolan.github.io/jq/" target="new">jq</a> allows for complex filtering and processing of JSON data with built-in functions, regex, filtering, and more. See examples and documentation <a href="https://stedolan.github.io/jq/manual/" target="new">here</a>.</li>
+                                {% else %}
+                                <li>jq support not installed</li>
+                                {% endif %}
+                            </ul>
+                        </li>
+                        <li>XPath - Limit text to this XPath rule, simply start with a forward-slash,
+                            <ul>
+                                <li>Example:  <code>//*[contains(@class, 'sametext')]</code> or <code>xpath://*[contains(@class, 'sametext')]</code>, <a
                                 href="http://xpather.com/" target="new">test your XPath here</a></li>
+                                <li>Example: Get all titles from an RSS feed <code>//title/text()</code></li>
+                            </ul>
+                            </li>
                     </ul>
-                    Please be sure that you thoroughly understand how to write CSS or JSONPath, XPath selector rules before filing an issue on GitHub! <a
+                    Please be sure that you thoroughly understand how to write CSS, JSONPath, XPath{% if jq_support %}, or jq selector{%endif%} rules before filing an issue on GitHub! <a
                                 href="https://github.com/dgtlmoon/changedetection.io/wiki/CSS-Selector-help">here for more CSS selector help</a>.<br/>
                 </span>
                     </div>
@@ -177,7 +226,7 @@ nav
                     <span class="pure-form-message-inline">
                         <ul>
                             <li>Each line processed separately, any line matching will be ignored (removed before creating the checksum)</li>
-                            <li>Regular Expression support, wrap the line in forward slash <code>/regex/</code></li>
+                            <li>Regular Expression support, wrap the entire line in forward slash <code>/regex/</code></li>
                             <li>Changing this will affect the comparison checksum which may trigger an alert</li>
                             <li>Use the preview/show current tab to see ignores</li>
                         </ul>
@@ -199,13 +248,36 @@ nav
                         </span>
                     </div>
                 </fieldset>
+                <fieldset>
+                    <div class="pure-control-group">
+                        {{ render_field(form.text_should_not_be_present, rows=5, placeholder="For example: Out of stock
+Sold out
+Not in stock
+Unavailable") }}
+                        <span class="pure-form-message-inline">
+                            <ul>
+                                <li>Block change-detection while this text is on the page, all text and regex are tested <i>case-insensitive</i>, good for waiting for when a product is available again</li>
+                                <li>Block text is processed from the result-text that comes out of any CSS/JSON Filters for this watch</li>
+                                <li>All lines here must not exist (think of each line as "OR")</li>
+                                <li>Note: Wrap in forward slash / to use regex  example: <code>/foo\d/</code></li>
+                            </ul>
+                        </span>
+                    </div>
+                </fieldset>
                 <fieldset>
                     <div class="pure-control-group">
                         {{ render_field(form.extract_text, rows=5, placeholder="\d+ online") }}
                         <span class="pure-form-message-inline">
                     <ul>
-                        <li>Extracts text in the final output after other filters using regular expressions, for example <code>\d+ online</code></li>
-                        <li>One line per regular-expression.</li>
+                        <li>Extracts text in the final output (line by line) after other filters using regular expressions;
+                            <ul>
+                                <li>Regular expression &dash; example <code>/reports.+?2022/i</code></li>
+                                <li>Use <code>//(?aiLmsux))</code> type flags (more <a href="https://docs.python.org/3/library/re.html#index-15">information here</a>)<br/></li>
+                                <li>Keyword example &dash; example <code>Out of stock</code></li>
+                                <li>Use groups to extract just that text &dash; example <code>/reports.+?(\d+)/i</code> returns a list of years only</li>
+                            </ul>
+                        </li>
+                        <li>One line per regular-expression/ string match</li>
                     </ul>
                         </span>
                     </div>
@@ -214,7 +286,7 @@ nav
 
             <div class="tab-pane-inner visual-selector-ui" id="visualselector">
                 <img id="beta-logo" src="{{url_for('static_content', group='images', filename='beta-logo.png')}}">
-
+                <strong>Pro-tip:</strong> This tool is only for limiting which elements will be included on a change-detection, not for interacting with browser directly.
                 <fieldset>
                     <div class="pure-control-group">
                         {% if visualselector_enabled %}
@@ -254,11 +326,11 @@ nav
 
             <div id="actions">
                 <div class="pure-control-group">
-
-                      {{ render_button(form.save_button) }} {{ render_button(form.save_and_preview_button) }}
-
+                    {{ render_button(form.save_button) }}
                     <a href="{{url_for('form_delete', uuid=uuid)}}"
                        class="pure-button button-small button-error ">Delete</a>
+                    <a href="{{url_for('clear_watch_history', uuid=uuid)}}"
+                       class="pure-button button-small button-error ">Clear History</a>
                     <a href="{{url_for('form_clone', uuid=uuid)}}"
                        class="pure-button button-small ">Create Copy</a>
                 </div>

changedetectionio/templates/import.html

@@ -5,7 +5,7 @@
 
     <div class="tabs collapsable">
         <ul>
-            <li class="tab" id="default-tab"><a href="#url-list">URL List</a></li>
+            <li class="tab" id=""><a href="#url-list">URL List</a></li>
             <li class="tab"><a href="#distill-io">Distill.io</a></li>
         </ul>
     </div>

changedetectionio/templates/notification-log.html

@@ -4,7 +4,7 @@
 <div class="edit-form">
      <div class="inner">
 
-         <h4 style="margin-top: 0px;">The following issues were detected when sending notifications</h4>
+         <h4 style="margin-top: 0px;">Notification debug log</h4>
                 <div id="notification-error-log">
                 <ul style="font-size: 80%; margin:0px; padding: 0 0 0 7px">
                 {% for log in logs|reverse %}

changedetectionio/templates/preview.html

@@ -3,23 +3,39 @@
 {% block content %}
 <script>
     const screenshot_url="{{url_for('static_content', group='screenshot', filename=uuid)}}";
+    {% if last_error_screenshot %}
+    const error_screenshot_url="{{url_for('static_content', group='screenshot', filename=uuid, error_screenshot=1) }}";
+    {% endif %}
 </script>
 <script type="text/javascript" src="{{url_for('static_content', group='js', filename='diff-overview.js')}}" defer></script>
 
-<div id="settings">
-    <h1>Current - {{watch.last_checked|format_timestamp_timeago}}</h1>
-</div>
-
 <script type="text/javascript" src="{{url_for('static_content', group='js', filename='tabs.js')}}" defer></script>
 <div class="tabs">
     <ul>
-        <li class="tab" id="default-tab"><a href="#text">Text</a></li>
+        {% if last_error_text %}<li class="tab" id="error-text-tab"><a href="#error-text">Error Text</a></li> {% endif %}
+        {% if last_error_screenshot %}<li class="tab" id="error-screenshot-tab"><a href="#error-screenshot">Error Screenshot</a></li> {% endif %}
+        {% if history_n > 0 %}
+        <li class="tab" id="text-tab"><a href="#text">Text</a></li>
         <li class="tab" id="screenshot-tab"><a href="#screenshot">Screenshot</a></li>
+        {% endif %}
     </ul>
 </div>
 
 <div id="diff-ui">
+    <div class="tab-pane-inner" id="error-text">
+        <div class="snapshot-age error">{{watch.error_text_ctime|format_seconds_ago}} seconds ago</div>
+        <pre>
+            {{ last_error_text }}
+        </pre>
+    </div>
+
+    <div class="tab-pane-inner" id="error-screenshot">
+        <div class="snapshot-age error">{{watch.snapshot_error_screenshot_ctime|format_seconds_ago}} seconds ago</div>
+        <img id="error-screenshot-img"  style="max-width: 80%" alt="Current erroring screenshot from most recent request"/>
+    </div>
+
     <div class="tab-pane-inner" id="text">
+        <div class="snapshot-age">{{watch.snapshot_text_ctime|format_timestamp_timeago}}</div>
         <span class="ignored">Grey lines are ignored</span> <span class="triggered">Blue lines are triggers</span>
         <table>
             <tbody>
@@ -33,6 +49,7 @@
             </tbody>
         </table>
     </div>
+
      <div class="tab-pane-inner" id="screenshot">
          <div class="tip">
              For now, Differences are performed on text, not graphically, only the latest screenshot is available.
@@ -40,6 +57,7 @@
          </br>
          {% if is_html_webdriver %}
            {% if screenshot %}
+             <div class="snapshot-age">{{watch.snapshot_screenshot_ctime|format_timestamp_timeago}}</div>
              <img style="max-width: 80%" id="screenshot-img" alt="Current screenshot from most recent request"/>
            {% else %}
               No screenshot available just yet! Try rechecking the page.

changedetectionio/templates/settings.html

@@ -16,7 +16,7 @@
 <div class="edit-form">
     <div class="tabs collapsable">
         <ul>
-            <li class="tab" id="default-tab"><a href="#general">General</a></li>
+            <li class="tab" id=""><a href="#general">General</a></li>
             <li class="tab"><a href="#notifications">Notifications</a></li>
             <li class="tab"><a href="#fetching">Fetching</a></li>
             <li class="tab"><a href="#filters">Global Filters</a></li>
@@ -32,6 +32,17 @@
                         {{ render_field(form.requests.form.time_between_check, class="time-check-widget") }}
                         <span class="pure-form-message-inline">Default time for all watches, when the watch does not have a specific time setting.</span>
                     </div>
+                    <div class="pure-control-group">
+                        {{ render_field(form.requests.form.jitter_seconds, class="jitter_seconds") }}
+                        <span class="pure-form-message-inline">Example - 3 seconds random jitter could trigger up to 3 seconds earlier or up to 3 seconds later</span>
+                    </div>
+                    <div class="pure-control-group">
+                        {{ render_field(form.application.form.filter_failure_notification_threshold_attempts, class="filter_failure_notification_threshold_attempts") }}
+                        <span class="pure-form-message-inline">After this many consecutive times that the CSS/xPath filter is missing, send a notification
+                            <br/>
+                        Set to <strong>0</strong> to disable
+                        </span>
+                    </div>
                     <div class="pure-control-group">
                         {% if not hide_remove_pass %}
                             {% if current_user.is_authenticated %}
@@ -49,7 +60,7 @@
                         {{ render_field(form.application.form.base_url, placeholder="http://yoursite.com:5000/",
                         class="m-d") }}
                         <span class="pure-form-message-inline">
-                            Base URL used for the {base_url} token in notifications and RSS links.<br/>Default value is the ENV var 'BASE_URL' (Currently "{{current_base_url}}"),
+                            Base URL used for the <code>{base_url}</code> token in notifications and RSS links.<br/>Default value is the ENV var 'BASE_URL' (Currently "{{settings_application['current_base_url']}}"),
                             <a href="https://github.com/dgtlmoon/changedetection.io/wiki/Configurable-BASE_URL-setting">read more here</a>.
                         </span>
                     </div>
@@ -58,12 +69,6 @@
                         {{ render_checkbox_field(form.application.form.extract_title_as_title) }}
                         <span class="pure-form-message-inline">Note: This will automatically apply to all existing watches.</span>
                     </div>
-
-                    <div class="pure-control-group">
-                        {{ render_checkbox_field(form.application.form.real_browser_save_screenshot) }}
-                        <span class="pure-form-message-inline">When using a Chrome browser, a screenshot from the last check will be available on the Diff page</span>
-                    </div>
-
                     <div class="pure-control-group">
                         {{ render_checkbox_field(form.application.form.empty_pages_are_a_change) }}
                         <span class="pure-form-message-inline">When a page contains HTML, but no renderable text appears (empty page), is this considered a change?</span>
@@ -82,7 +87,7 @@
             <div class="tab-pane-inner" id="notifications">
                 <fieldset>
                     <div class="field-group">
-                        {{ render_common_settings_form(form.application.form, current_base_url, emailprefix) }}
+                        {{ render_common_settings_form(form.application.form, emailprefix, settings_application) }}
                     </div>
                 </fieldset>
             </div>
@@ -94,6 +99,8 @@
                         <p>Use the <strong>Basic</strong> method (default) where your watched sites don't need Javascript to render.</p>
                         <p>The <strong>Chrome/Javascript</strong> method requires a network connection to a running WebDriver+Chrome server, set by the ENV var 'WEBDRIVER_URL'. </p>
                     </span>
+                    <br/>
+                    Tip: <a href="https://github.com/dgtlmoon/changedetection.io/wiki/Proxy-configuration#brightdata-proxy-support">Connect using BrightData Proxies, find out more here.</a>
                 </div>
                 <fieldset class="pure-group" id="webdriver-override-options">
                     <div class="pure-form-message-inline">
@@ -143,7 +150,7 @@ nav
                         <ul>
                             <li>Note: This is applied globally in addition to the per-watch rules.</li>
                             <li>Each line processed separately, any line matching will be ignored (removed before creating the checksum)</li>
-                            <li>Regular Expression support, wrap the line in forward slash <code>/regex/</code></li>
+                            <li>Regular Expression support, wrap the entire line in forward slash <code>/regex/</code></li>
                             <li>Changing this will affect the comparison checksum which may trigger an alert</li>
                             <li>Use the preview/show current tab to see ignores</li>
                         </ul>
@@ -168,7 +175,7 @@ nav
                 <div class="pure-control-group">
                     {{ render_button(form.save_button) }}
                     <a href="{{url_for('index')}}" class="pure-button button-small button-cancel">Back</a>
-                    <a href="{{url_for('scrub_page')}}" class="pure-button button-small button-cancel">Delete History Snapshot Data</a>
+                    <a href="{{url_for('clear_all_history')}}" class="pure-button button-small button-cancel">Clear Snapshot History</a>
                 </div>
 
             </div>

changedetectionio/templates/watch-overview.html

@@ -1,21 +1,40 @@
 {% extends 'base.html' %}
 {% block content %}
-{% from '_helpers.jinja' import render_simple_field %}
+{% from '_helpers.jinja' import render_simple_field, render_field %}
+{% from '_pagination.jinja' import pagination %}
 <script type="text/javascript" src="{{url_for('static_content', group='js', filename='jquery-3.6.0.min.js')}}"></script>
 <script type="text/javascript" src="{{url_for('static_content', group='js', filename='watch-overview.js')}}" defer></script>
 
 <div class="box">
 
-    <form class="pure-form" action="{{ url_for('form_watch_add') }}" method="POST" id="new-watch-form">
+    <form class="pure-form" action="{{ url_for('form_quick_watch_add') }}" method="POST" id="new-watch-form">
         <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
         <fieldset>
             <legend>Add a new change detection watch</legend>
-                {{ render_simple_field(form.url, placeholder="https://...", required=true) }}
-                {{ render_simple_field(form.tag, value=active_tag if active_tag else '', placeholder="watch group") }}
-            <button type="submit" class="pure-button pure-button-primary">Watch</button>
+            <div id="watch-add-wrapper-zone">
+                <div>
+                    {{ render_simple_field(form.url, placeholder="https://...", required=true) }}
+                    {{ render_simple_field(form.tag, value=active_tag if active_tag else '', placeholder="watch group") }}
+                </div>
+                <div>
+                    {{ render_simple_field(form.watch_submit_button, title="Watch this URL!" ) }}
+                    {{ render_simple_field(form.edit_and_watch_submit_button, title="Edit first then Watch") }}
+                </div>
+            </div>
         </fieldset>
-        <span style="color:#eee; font-size: 80%;"><img style="height: 1em;display:inline-block;" src="{{url_for('static_content', group='images', filename='spread.svg')}}" /> Tip: You can also add 'shared' watches. <a href="https://github.com/dgtlmoon/changedetection.io/wiki/Sharing-a-Watch">More info</a></a></span>
+        <span style="color:#eee; font-size: 80%;"><img style="height: 1em;display:inline-block;" src="{{url_for('static_content', group='images', filename='spread-white.svg')}}" /> Tip: You can also add 'shared' watches. <a href="https://github.com/dgtlmoon/changedetection.io/wiki/Sharing-a-Watch">More info</a></a></span>
     </form>
+
+    <form class="pure-form" action="{{ url_for('form_watch_list_checkbox_operations') }}" method="POST" id="watch-list-form">
+    <input type="hidden" name="csrf_token" value="{{ csrf_token() }}"/>
+    <div id="checkbox-operations">
+        <button class="pure-button button-secondary button-xsmall" style="font-size: 70%"  name="op" value="pause">Pause</button>
+        <button class="pure-button button-secondary button-xsmall" style="font-size: 70%"  name="op" value="unpause">UnPause</button>
+        <button class="pure-button button-secondary button-xsmall" style="font-size: 70%"  name="op" value="mute">Mute</button>
+        <button class="pure-button button-secondary button-xsmall" style="font-size: 70%"  name="op" value="unmute">UnMute</button>
+        <button class="pure-button button-secondary button-xsmall" style="font-size: 70%" name="op" value="notification-default">Use default notification</button>
+        <button class="pure-button button-secondary button-xsmall" style="background: #dd4242; font-size: 70%" name="op" value="delete">Delete</button>
+    </div>
     <div>
         <a href="{{url_for('index')}}" class="pure-button button-tag {{'active' if not active_tag }}">All</a>
         {% for tag in tags %}
@@ -25,22 +44,32 @@
         {% endfor %}
     </div>
 
+    {% set sort_order = request.args.get('order', 'asc') == 'asc' %}
+    {% set sort_attribute = request.args.get('sort', 'last_changed')   %}
+    {% set pagination_page = request.args.get('page', 0) %}
+
     <div id="watch-table-wrapper">
         <table class="pure-table pure-table-striped watch-table">
             <thead>
             <tr>
-                <th>#</th>
+                <th><input style="vertical-align: middle" type="checkbox" id="check-all"/> #</th>
                 <th></th>
-                <th></th>
-                <th>Last Checked</th>
-                <th>Last Changed</th>
+                {% set link_order = "desc" if sort_order else "asc" %}
+                {% set arrow_span = "" %}
+                <th><a class="{{ 'active '+link_order if sort_attribute == 'label' else 'inactive' }}" href="{{url_for('index', sort='label', order=link_order)}}">Website <span class='arrow {{link_order}}'></span></a></th>
+                <th><a class="{{ 'active '+link_order if sort_attribute == 'last_checked' else 'inactive' }}" href="{{url_for('index', sort='last_checked', order=link_order)}}">Last Checked <span class='arrow {{link_order}}'></span></a></th>
+                <th><a class="{{ 'active '+link_order if sort_attribute == 'last_changed' else 'inactive' }}" href="{{url_for('index', sort='last_changed', order=link_order)}}">Last Changed <span class='arrow {{link_order}}'></span></a></th>
                 <th></th>
             </tr>
             </thead>
             <tbody>
 
+            {% set sorted_watches = watches|sort(attribute=sort_attribute, reverse=sort_order) %}
+            {% for watch in sorted_watches %}
 
-            {% for watch in watches %}
+            {# WIP for pagination, disabled for now
+              {% if not ( loop.index >= 3 and loop.index <=4) %}{% continue %}{% endif %} -->
+             #}
             <tr id="{{ watch.uuid }}"
                 class="{{ loop.cycle('pure-table-odd', 'pure-table-even') }}
                 {% if watch.last_error is defined and watch.last_error != False %}error{% endif %}
@@ -48,11 +77,17 @@
                 {% if watch.paused is defined and watch.paused != False %}paused{% endif %}
                 {% if watch.newest_history_key| int > watch.last_viewed and watch.history_n>=2 %}unviewed{% endif %}
                 {% if watch.uuid in queued_uuids %}queued{% endif %}">
-                <td class="inline">{{ loop.index }}</td>
-                <td class="inline paused-state state-{{watch.paused}}"><a href="{{url_for('index', pause=watch.uuid, tag=active_tag)}}"><img src="{{url_for('static_content', group='images', filename='pause.svg')}}" alt="Pause" title="Pause"/></a></td>
-
+                <td class="inline checkbox-uuid" ><input name="uuids"  type="checkbox" value="{{ watch.uuid}} "/> <span>{{ loop.index }}</span></td>
+                <td class="inline watch-controls">
+                    {% if not watch.paused %}
+                    <a class="state-off" href="{{url_for('index', op='pause', uuid=watch.uuid, tag=active_tag)}}"><img src="{{url_for('static_content', group='images', filename='pause.svg')}}" alt="Pause checks" title="Pause checks"/></a>
+                    {% else %}
+                    <a class="state-on" href="{{url_for('index', op='pause', uuid=watch.uuid, tag=active_tag)}}"><img src="{{url_for('static_content', group='images', filename='play.svg')}}" alt="UnPause checks" title="UnPause checks"/></a>
+                    {% endif %}
+                    <a class="state-{{'on' if watch.notification_muted}}" href="{{url_for('index', op='mute', uuid=watch.uuid, tag=active_tag)}}"><img src="{{url_for('static_content', group='images', filename='bell-off.svg')}}" alt="Mute notifications" title="Mute notifications"/></a>
+                </td>
                 <td class="title-col inline">{{watch.title if watch.title is not none and watch.title|length > 0 else watch.url}}
-                    <a class="external" target="_blank" rel="noopener" href="{{ watch.url.replace('source:','') }}"></a>
+                    <a class="external" target="_blank" rel="noopener" href="{{ watch.link.replace('source:','') }}"></a>
                     <a href="{{url_for('form_share_put_watch', uuid=watch.uuid)}}"><img style="height: 1em;display:inline-block;" src="{{url_for('static_content', group='images', filename='spread.svg')}}" /></a>
 
                     {%if watch.fetch_backend == "html_webdriver" %}<img style="height: 1em; display:inline-block;" src="{{url_for('static_content', group='images', filename='Google-Chrome-icon.png')}}" />{% endif %}
@@ -67,8 +102,8 @@
                     <span class="watch-tag-list">{{ watch.tag}}</span>
                     {% endif %}
                 </td>
-                <td class="last-checked">{{watch|format_last_checked_time}}</td>
-                <td class="last-changed">{% if watch.history_n >=2 and watch.last_changed %}
+                <td class="last-checked">{{watch|format_last_checked_time|safe}}</td>
+                <td class="last-changed">{% if watch.history_n >=2 and watch.last_changed >0 %}
                     {{watch.last_changed|format_timestamp_timeago}}
                     {% else %}
                     Not yet
@@ -81,7 +116,7 @@
                     {% if watch.history_n >= 2 %}
                     <a href="{{ url_for('diff_history_page', uuid=watch.uuid) }}" target="{{watch.uuid}}" class="pure-button button-small pure-button-primary diff-link">Diff</a>
                     {% else %}
-                        {% if watch.history_n == 1 %}
+                        {% if watch.history_n == 1 or (watch.history_n ==0 and watch.error_text_ctime )%}
                             <a href="{{ url_for('preview_page', uuid=watch.uuid)}}" target="{{watch.uuid}}" class="pure-button button-small pure-button-primary">Preview</a>
                         {% endif %}
                     {% endif %}
@@ -104,6 +139,11 @@
                 <a href="{{ url_for('rss', tag=active_tag , token=app_rss_token)}}"><img alt="RSS Feed" id="feed-icon" src="{{url_for('static_content', group='images', filename='Generic_Feed-icon.svg')}}" height="15"></a>
             </li>
         </ul>
+        {# WIP for pagination, disabled for now
+         {{ pagination(sorted_watches,3, pagination_page) }}
+         #}
+
     </div>
+    </form>
 </div>
 {% endblock %}

changedetectionio/tests/conftest.py

@@ -32,6 +32,8 @@ def app(request):
     """Create application for the tests."""
     datastore_path = "./test-datastore"
 
+    # So they don't delay in fetching
+    os.environ["MINIMUM_SECONDS_RECHECK_TIME"] = "0"
     try:
         os.mkdir(datastore_path)
     except FileExistsError:

changedetectionio/tests/fetchers/test_content.py

@@ -2,7 +2,7 @@
 
 import time
 from flask import url_for
-from ..util import live_server_setup
+from ..util import live_server_setup, wait_for_all_checks
 import logging
 
 
@@ -29,14 +29,8 @@ def test_fetch_webdriver_content(client, live_server):
 
     assert b"1 Imported" in res.data
     time.sleep(3)
-    attempt = 0
-    while attempt < 20:
-        res = client.get(url_for("index"))
-        if not b'Checking now' in res.data:
-            break
-        logging.getLogger().info("Waiting for check to not say 'Checking now'..")
-        time.sleep(3)
-        attempt += 1
+
+    wait_for_all_checks(client)
 
 
     res = client.get(

changedetectionio/tests/proxy_list/__init__.py

@@ -0,0 +1,2 @@
+"""Tests for the app."""
+

changedetectionio/tests/proxy_list/conftest.py

@@ -0,0 +1,14 @@
+#!/usr/bin/python3
+
+from .. import conftest
+
+#def pytest_addoption(parser):
+#    parser.addoption("--url_suffix", action="store", default="identifier for request")
+
+
+#def pytest_generate_tests(metafunc):
+#    # This is called for every test. Only get/set command line arguments
+#    # if the argument is specified in the list of test "fixturenames".
+#    option_value = metafunc.config.option.url_suffix
+#    if 'url_suffix' in metafunc.fixturenames and option_value is not None:
+#        metafunc.parametrize("url_suffix", [option_value])

changedetectionio/tests/proxy_list/proxies.json-example

@@ -0,0 +1,10 @@
+{
+  "proxy-one": {
+    "label": "One",
+    "url": "http://127.0.0.1:3128"
+  },
+  "proxy-two": {
+    "label": "two",
+    "url": "http://127.0.0.1:3129"
+  }
+}

changedetectionio/tests/proxy_list/squid.conf

@@ -0,0 +1,41 @@
+acl localnet src 0.0.0.1-0.255.255.255  # RFC 1122 "this" network (LAN)
+acl localnet src 10.0.0.0/8             # RFC 1918 local private network (LAN)
+acl localnet src 100.64.0.0/10          # RFC 6598 shared address space (CGN)
+acl localnet src 169.254.0.0/16         # RFC 3927 link-local (directly plugged) machines
+acl localnet src 172.16.0.0/12          # RFC 1918 local private network (LAN)
+acl localnet src 192.168.0.0/16         # RFC 1918 local private network (LAN)
+acl localnet src fc00::/7               # RFC 4193 local private network range
+acl localnet src fe80::/10              # RFC 4291 link-local (directly plugged) machines
+acl localnet src 159.65.224.174
+acl SSL_ports port 443
+acl Safe_ports port 80          # http
+acl Safe_ports port 21          # ftp
+acl Safe_ports port 443         # https
+acl Safe_ports port 70          # gopher
+acl Safe_ports port 210         # wais
+acl Safe_ports port 1025-65535  # unregistered ports
+acl Safe_ports port 280         # http-mgmt
+acl Safe_ports port 488         # gss-http
+acl Safe_ports port 591         # filemaker
+acl Safe_ports port 777         # multiling http
+acl CONNECT method CONNECT
+
+http_access deny !Safe_ports
+http_access deny CONNECT !SSL_ports
+http_access allow localhost manager
+http_access deny manager
+http_access allow localhost
+http_access allow localnet
+http_access deny all
+http_port 3128
+coredump_dir /var/spool/squid
+refresh_pattern ^ftp:           1440    20%     10080
+refresh_pattern ^gopher:        1440    0%      1440
+refresh_pattern -i (/cgi-bin/|\?) 0     0%      0
+refresh_pattern \/(Packages|Sources)(|\.bz2|\.gz|\.xz)$ 0 0% 0 refresh-ims
+refresh_pattern \/Release(|\.gpg)$ 0 0% 0 refresh-ims
+refresh_pattern \/InRelease$ 0 0% 0 refresh-ims
+refresh_pattern \/(Translation-.*)(|\.bz2|\.gz|\.xz)$ 0 0% 0 refresh-ims
+refresh_pattern .               0       20%     4320
+logfile_rotate 0
+

changedetectionio/tests/proxy_list/test_multiple_proxy.py

@@ -0,0 +1,38 @@
+#!/usr/bin/python3
+
+import time
+from flask import url_for
+from ..util import live_server_setup
+
+def test_preferred_proxy(client, live_server):
+    time.sleep(1)
+    live_server_setup(live_server)
+    time.sleep(1)
+    url = "http://chosen.changedetection.io"
+
+    res = client.post(
+        url_for("import_page"),
+        # Because a URL wont show in squid/proxy logs due it being SSLed
+        # Use plain HTTP or a specific domain-name here
+        data={"urls": url},
+        follow_redirects=True
+    )
+
+    assert b"1 Imported" in res.data
+
+    time.sleep(2)
+    res = client.post(
+        url_for("edit_page", uuid="first"),
+        data={
+                "css_filter": "",
+                "fetch_backend": "html_requests",
+                "headers": "",
+                "proxy": "proxy-two",
+                "tag": "",
+                "url": url,
+              },
+        follow_redirects=True
+    )
+    assert b"Updated watch." in res.data
+    time.sleep(2)
+    # Now the request should appear in the second-squid logs

changedetectionio/tests/proxy_list/test_proxy.py

@@ -0,0 +1,19 @@
+#!/usr/bin/python3
+
+import time
+from flask import url_for
+from ..util import live_server_setup, wait_for_all_checks, extract_UUID_from_client
+
+# just make a request, we will grep in the docker logs to see it actually got called
+def test_check_basic_change_detection_functionality(client, live_server):
+    live_server_setup(live_server)
+    res = client.post(
+        url_for("import_page"),
+        # Because a URL wont show in squid/proxy logs due it being SSLed
+        # Use plain HTTP or a specific domain-name here
+        data={"urls": "http://one.changedetection.io"},
+        follow_redirects=True
+    )
+
+    assert b"1 Imported" in res.data
+    time.sleep(3)

changedetectionio/tests/test_access_control.py

@@ -19,7 +19,6 @@ def test_check_access_control(app, client):
         )
 
         assert b"Password protection enabled." in res.data
-        assert b"LOG OUT" not in res.data
 
         # Check we hit the login
         res = c.get(url_for("index"), follow_redirects=True)
@@ -38,7 +37,40 @@ def test_check_access_control(app, client):
             follow_redirects=True
         )
 
+        # Yes we are correctly logged in
         assert b"LOG OUT" in res.data
+
+        # 598 - Password should be set and not accidently removed
+        res = c.post(
+            url_for("settings_page"),
+            data={
+                  "requests-time_between_check-minutes": 180,
+                  'application-fetch_backend': "html_requests"},
+            follow_redirects=True
+        )
+
+        res = c.get(url_for("logout"),
+            follow_redirects=True)
+
+        res = c.get(url_for("settings_page"),
+            follow_redirects=True)
+
+
+        assert b"Login" in res.data
+
+        res = c.get(url_for("login"))
+        assert b"Login" in res.data
+
+
+        res = c.post(
+            url_for("login"),
+            data={"password": "foobar"},
+            follow_redirects=True
+        )
+
+        # Yes we are correctly logged in
+        assert b"LOG OUT" in res.data
+
         res = c.get(url_for("settings_page"))
 
         # Menu should be available now

changedetectionio/tests/test_api.py

@@ -95,6 +95,8 @@ def test_api_simple(client, live_server):
     assert watch_uuid in json.loads(res.data).keys()
     before_recheck_info = json.loads(res.data)[watch_uuid]
     assert before_recheck_info['last_checked'] != 0
+    #705 `last_changed` should be zero on the first check
+    assert before_recheck_info['last_changed'] == 0
     assert before_recheck_info['title'] == 'My test URL'
 
     set_modified_response()
@@ -145,6 +147,16 @@ def test_api_simple(client, live_server):
     # @todo how to handle None/default global values?
     assert watch['history_n'] == 2, "Found replacement history section, which is in its own API"
 
+    # basic systeminfo check
+    res = client.get(
+        url_for("systeminfo"),
+        headers={'x-api-key': api_key},
+    )
+    info = json.loads(res.data)
+    assert info.get('watch_count') == 1
+    assert info.get('uptime') > 0.5
+
+
     # Finally delete the watch
     res = client.delete(
         url_for("watch", uuid=watch_uuid),

changedetectionio/tests/test_backend.py

@@ -90,6 +90,14 @@ def test_check_basic_change_detection_functionality(client, live_server):
     res = client.get(url_for("diff_history_page", uuid="first"))
     assert b'Compare newest' in res.data
 
+    # Check the [preview] pulls the right one
+    res = client.get(
+        url_for("preview_page", uuid="first"),
+        follow_redirects=True
+    )
+    assert b'which has this one new line' in res.data
+    assert b'Which is across multiple lines' not in res.data
+
     time.sleep(2)
 
     # Do this a few times.. ensures we dont accidently set the status

changedetectionio/tests/test_backup.py

@@ -1,18 +1,31 @@
 #!/usr/bin/python3
 
-import time
+from .util import set_original_response, set_modified_response, live_server_setup
 from flask import url_for
 from urllib.request import urlopen
-from . util import set_original_response, set_modified_response, live_server_setup
+from zipfile import ZipFile
+import re
+import time
 
 
 def test_backup(client, live_server):
-
     live_server_setup(live_server)
 
+    set_original_response()
+
     # Give the endpoint time to spin up
     time.sleep(1)
 
+    # Add our URL to the import page
+    res = client.post(
+        url_for("import_page"),
+        data={"urls": url_for('test_endpoint', _external=True)},
+        follow_redirects=True
+    )
+
+    assert b"1 Imported" in res.data
+    time.sleep(3)
+
     res = client.get(
         url_for("get_backup"),
         follow_redirects=True
@@ -20,6 +33,19 @@ def test_backup(client, live_server):
 
     # Should get the right zip content type
     assert res.content_type == "application/zip"
+
     # Should be PK/ZIP stream
     assert res.data.count(b'PK') >= 2
 
+    # ZipFile from buffer seems non-obvious, just save it instead
+    with open("download.zip", 'wb') as f:
+        f.write(res.data)
+
+    zip = ZipFile('download.zip')
+    l = zip.namelist()
+    uuid4hex = re.compile('^[a-f0-9]{8}-?[a-f0-9]{4}-?4[a-f0-9]{3}-?[89ab][a-f0-9]{3}-?[a-f0-9]{12}.*txt', re.I)
+    newlist = list(filter(uuid4hex.match, l))  # Read Note below
+
+    # Should be two txt files in the archive (history and the snapshot)
+    assert len(newlist) == 2
+

changedetectionio/tests/test_block_while_text_present.py

@@ -0,0 +1,137 @@
+#!/usr/bin/python3
+
+import time
+from flask import url_for
+from . util import live_server_setup
+from changedetectionio import html_tools
+
+def set_original_ignore_response():
+    test_return_data = """<html>
+       <body>
+     Some initial text</br>
+     <p>Which is across multiple lines</p>
+     </br>
+     So let's see what happens.  </br>
+     </body>
+     </html>
+
+    """
+
+    with open("test-datastore/endpoint-content.txt", "w") as f:
+        f.write(test_return_data)
+
+
+def set_modified_original_ignore_response():
+    test_return_data = """<html>
+       <body>
+     Some NEW nice initial text</br>
+     <p>Which is across multiple lines</p>
+     </br>
+     So let's see what happens.  </br>
+     <p>new ignore stuff</p>
+     <p>out of stock</p>
+     <p>blah</p>
+     </body>
+     </html>
+
+    """
+
+    with open("test-datastore/endpoint-content.txt", "w") as f:
+        f.write(test_return_data)
+
+
+# Is the same but includes ZZZZZ, 'ZZZZZ' is the last line in ignore_text
+def set_modified_response_minus_block_text():
+    test_return_data = """<html>
+       <body>
+     Some NEW nice initial text</br>
+     <p>Which is across multiple lines</p>
+     <p>now on sale $2/p>
+     </br>
+     So let's see what happens.  </br>
+     <p>new ignore stuff</p>
+     <p>blah</p>
+     </body>
+     </html>
+
+    """
+
+    with open("test-datastore/endpoint-content.txt", "w") as f:
+        f.write(test_return_data)
+
+
+def test_check_block_changedetection_text_NOT_present(client, live_server):
+    sleep_time_for_fetch_thread = 3
+    live_server_setup(live_server)
+    # Use a mix of case in ZzZ to prove it works case-insensitive.
+    ignore_text = "out of stoCk\r\nfoobar"
+
+    set_original_ignore_response()
+
+    # Give the endpoint time to spin up
+    time.sleep(1)
+
+    # Add our URL to the import page
+    test_url = url_for('test_endpoint', _external=True)
+    res = client.post(
+        url_for("import_page"),
+        data={"urls": test_url},
+        follow_redirects=True
+    )
+    assert b"1 Imported" in res.data
+
+    # Give the thread time to pick it up
+    time.sleep(sleep_time_for_fetch_thread)
+
+    # Goto the edit page, add our ignore text
+    # Add our URL to the import page
+    res = client.post(
+        url_for("edit_page", uuid="first"),
+        data={"text_should_not_be_present": ignore_text, "url": test_url, 'fetch_backend': "html_requests"},
+        follow_redirects=True
+    )
+    assert b"Updated watch." in res.data
+
+    # Give the thread time to pick it up
+    time.sleep(sleep_time_for_fetch_thread)
+    # Check it saved
+    res = client.get(
+        url_for("edit_page", uuid="first"),
+    )
+    assert bytes(ignore_text.encode('utf-8')) in res.data
+
+    # Trigger a check
+    client.get(url_for("form_watch_checknow"), follow_redirects=True)
+
+    # Give the thread time to pick it up
+    time.sleep(sleep_time_for_fetch_thread)
+
+    # It should report nothing found (no new 'unviewed' class)
+    res = client.get(url_for("index"))
+    assert b'unviewed' not in res.data
+    assert b'/test-endpoint' in res.data
+
+    # The page changed, BUT the text is still there, just the rest of it changes, we should not see a change
+    set_modified_original_ignore_response()
+
+    # Trigger a check
+    client.get(url_for("form_watch_checknow"), follow_redirects=True)
+    # Give the thread time to pick it up
+    time.sleep(sleep_time_for_fetch_thread)
+
+    # It should report nothing found (no new 'unviewed' class)
+    res = client.get(url_for("index"))
+    assert b'unviewed' not in res.data
+    assert b'/test-endpoint' in res.data
+
+
+    # Now we set a change where the text is gone, it should now trigger
+    set_modified_response_minus_block_text()
+    client.get(url_for("form_watch_checknow"), follow_redirects=True)
+    time.sleep(sleep_time_for_fetch_thread)
+
+    res = client.get(url_for("index"))
+    assert b'unviewed' in res.data
+
+    res = client.get(url_for("form_delete", uuid="all"), follow_redirects=True)
+    assert b'Deleted' in res.data

changedetectionio/tests/test_errorhandling.py

@@ -11,16 +11,17 @@ def test_setup(live_server):
     live_server_setup(live_server)
 
 
-def test_error_handler(client, live_server):
+def _runner_test_http_errors(client, live_server, http_code, expected_text):
 
+    with open("test-datastore/endpoint-content.txt", "w") as f:
+        f.write("Now you going to get a {} error code\n".format(http_code))
 
-    # Give the endpoint time to spin up
-    time.sleep(1)
 
     # Add our URL to the import page
     test_url = url_for('test_endpoint',
-                       status_code=403,
+                       status_code=http_code,
                        _external=True)
+
     res = client.post(
         url_for("import_page"),
         data={"urls": test_url},
@@ -28,20 +29,39 @@ def test_error_handler(client, live_server):
     )
     assert b"1 Imported" in res.data
 
-    # Trigger a check
-    client.get(url_for("form_watch_checknow"), follow_redirects=True)
-
     # Give the thread time to pick it up
-    time.sleep(3)
-
+    time.sleep(2)
 
     res = client.get(url_for("index"))
+    # no change
     assert b'unviewed' not in res.data
-    assert b'Status Code 403' in res.data
-    assert bytes("just now".encode('utf-8')) in res.data
+    assert bytes(expected_text.encode('utf-8')) in res.data
+
+
+    # Error viewing tabs should appear
+    res = client.get(
+        url_for("preview_page", uuid="first"),
+        follow_redirects=True
+    )
+
+    assert b'Error Text' in res.data
+
+    # 'Error Screenshot' only when in playwright mode
+    #assert b'Error Screenshot' in res.data
+
+
+    res = client.get(url_for("form_delete", uuid="all"), follow_redirects=True)
+    assert b'Deleted' in res.data
+
+
+def test_http_error_handler(client, live_server):
+    _runner_test_http_errors(client, live_server, 403, 'Access denied')
+    _runner_test_http_errors(client, live_server, 404, 'Page not found')
+    _runner_test_http_errors(client, live_server, 500, '(Internal server Error) received')
+    _runner_test_http_errors(client, live_server, 400, 'Error - Request returned a HTTP error code 400')
 
 # Just to be sure error text is properly handled
-def test_error_text_handler(client, live_server):
+def test_DNS_errors(client, live_server):
     # Give the endpoint time to spin up
     time.sleep(1)
 
@@ -53,13 +73,11 @@ def test_error_text_handler(client, live_server):
     )
     assert b"1 Imported" in res.data
 
-    # Trigger a check
-    client.get(url_for("form_watch_checknow"), follow_redirects=True)
-
     # Give the thread time to pick it up
     time.sleep(3)
 
     res = client.get(url_for("index"))
     assert b'Name or service not known' in res.data
+    # Should always record that we tried
     assert bytes("just now".encode('utf-8')) in res.data
 

changedetectionio/tests/test_extract_regex.py

@@ -15,7 +15,7 @@ def set_original_response():
      </br>
      So let's see what happens.  </br>
      <div id="sametext">Some text thats the same</div>
-     <div id="changetext">Some text that will change</div>
+     <div class="changetext">Some text that will change</div>     
      </body>
      </html>
     """
@@ -33,7 +33,8 @@ def set_modified_response():
      </br>
      So let's see what happens.  </br>
      <div id="sametext">Some text thats the same</div>
-     <div id="changetext">Some text that did change ( 1000 online <br/> 80 guests)</div>
+     <div class="changetext">Some text that did change ( 1000 online <br/> 80 guests<br/>  2000 online )</div>
+     <div class="changetext">SomeCase insensitive 3456</div>
      </body>
      </html>
     """
@@ -44,11 +45,78 @@ def set_modified_response():
     return None
 
 
-def test_check_filter_and_regex_extract(client, live_server):
-    sleep_time_for_fetch_thread = 3
+def set_multiline_response():
+    test_return_data = """<html>
+       <body>
+     
+     <p>Something <br/>
+        across 6 billion multiple<br/>
+        lines
+     </p>
+     
+     <div>aaand something lines</div>
+     </body>
+     </html>
+    """
+
+    with open("test-datastore/endpoint-content.txt", "w") as f:
+        f.write(test_return_data)
+
+    return None
+
+
+def test_setup(client, live_server):
 
     live_server_setup(live_server)
-    css_filter = "#changetext"
+
+def test_check_filter_multiline(client, live_server):
+
+    set_multiline_response()
+
+    # Add our URL to the import page
+    test_url = url_for('test_endpoint', _external=True)
+    res = client.post(
+        url_for("import_page"),
+        data={"urls": test_url},
+        follow_redirects=True
+    )
+    assert b"1 Imported" in res.data
+
+    time.sleep(3)
+
+    # Goto the edit page, add our ignore text
+    # Add our URL to the import page
+    res = client.post(
+        url_for("edit_page", uuid="first"),
+        data={"css_filter": '',
+              'extract_text': '/something.+?6 billion.+?lines/si',
+              "url": test_url,
+              "tag": "",
+              "headers": "",
+              'fetch_backend': "html_requests"
+              },
+        follow_redirects=True
+    )
+
+    assert b"Updated watch." in res.data
+    time.sleep(3)
+
+    res = client.get(
+        url_for("preview_page", uuid="first"),
+        follow_redirects=True
+    )
+
+
+    assert b'<div class="">Something' in res.data
+    assert b'<div class="">across 6 billion multiple' in res.data
+    assert b'<div class="">lines' in res.data
+
+    # but the last one, which also says 'lines' shouldnt be here (non-greedy match checking)
+    assert b'aaand something lines' not in res.data
+
+def test_check_filter_and_regex_extract(client, live_server):
+    sleep_time_for_fetch_thread = 3
+    css_filter = ".changetext"
 
     set_original_response()
 
@@ -64,6 +132,7 @@ def test_check_filter_and_regex_extract(client, live_server):
     )
     assert b"1 Imported" in res.data
 
+    time.sleep(1)
     # Trigger a check
     client.get(url_for("form_watch_checknow"), follow_redirects=True)
 
@@ -75,7 +144,7 @@ def test_check_filter_and_regex_extract(client, live_server):
     res = client.post(
         url_for("edit_page", uuid="first"),
         data={"css_filter": css_filter,
-              'extract_text': '\d+ online\n\d+ guests',
+              'extract_text': '\d+ online\r\n\d+ guests\r\n/somecase insensitive \d+/i\r\n/somecase insensitive (345\d)/i',
               "url": test_url,
               "tag": "",
               "headers": "",
@@ -86,15 +155,6 @@ def test_check_filter_and_regex_extract(client, live_server):
 
     assert b"Updated watch." in res.data
 
-    # Check it saved
-    res = client.get(
-        url_for("edit_page", uuid="first"),
-    )
-    assert b'\d+ online' in res.data
-
-    # Trigger a check
-#    client.get(url_for("form_watch_checknow"), follow_redirects=True)
-
     # Give the thread time to pick it up
     time.sleep(sleep_time_for_fetch_thread)
 
@@ -119,9 +179,20 @@ def test_check_filter_and_regex_extract(client, live_server):
 
     # Class will be blank for now because the frontend didnt apply the diff
     assert b'<div class="">1000 online' in res.data
-    
+
+    # All regex matching should be here
+    assert b'<div class="">2000 online' in res.data
+
     # Both regexs should be here
     assert b'<div class="">80 guests' in res.data
 
+    # Regex with flag handling should be here
+    assert b'<div class="">SomeCase insensitive 3456' in res.data
+
+    # Singular group from /somecase insensitive (345\d)/i
+    assert b'<div class="">3456' in res.data
+
+    # Regex with multiline flag handling should be here
+
     # Should not be here
-    assert b'Some text that did change' not in res.data
+    assert b'Some text that did change' not in res.data

changedetectionio/tests/test_filter_exist_changes.py

@@ -0,0 +1,134 @@
+#!/usr/bin/python3
+
+# https://www.reddit.com/r/selfhosted/comments/wa89kp/comment/ii3a4g7/?context=3
+import os
+import time
+from flask import url_for
+from .util import set_original_response, live_server_setup
+from changedetectionio.model import App
+
+
+def set_response_without_filter():
+    test_return_data = """<html>
+       <body>
+     Some initial text</br>
+     <p>Which is across multiple lines</p>
+     </br>
+     So let's see what happens.  </br>
+     <div id="nope-doesnt-exist">Some text thats the same</div>     
+     </body>
+     </html>
+    """
+
+    with open("test-datastore/endpoint-content.txt", "w") as f:
+        f.write(test_return_data)
+    return None
+
+
+def set_response_with_filter():
+    test_return_data = """<html>
+       <body>
+     Some initial text</br>
+     <p>Which is across multiple lines</p>
+     </br>
+     So let's see what happens.  </br>
+     <div class="ticket-available">Ticket now on sale!</div>     
+     </body>
+     </html>
+    """
+
+    with open("test-datastore/endpoint-content.txt", "w") as f:
+        f.write(test_return_data)
+    return None
+
+def test_filter_doesnt_exist_then_exists_should_get_notification(client, live_server):
+#  Filter knowingly doesn't exist, like someone setting up a known filter to see if some cinema tickets are on sale again
+#  And the page has that filter available
+#  Then I should get a notification
+
+    live_server_setup(live_server)
+
+    # Give the endpoint time to spin up
+    time.sleep(1)
+    set_response_without_filter()
+
+    # Add our URL to the import page
+    test_url = url_for('test_endpoint', _external=True)
+    res = client.post(
+        url_for("form_quick_watch_add"),
+        data={"url": test_url, "tag": 'cinema'},
+        follow_redirects=True
+    )
+    assert b"Watch added" in res.data
+
+    # Give the thread time to pick up the first version
+    time.sleep(3)
+
+    # Goto the edit page, add our ignore text
+    # Add our URL to the import page
+    url = url_for('test_notification_endpoint', _external=True)
+    notification_url = url.replace('http', 'json')
+
+    print(">>>> Notification URL: " + notification_url)
+
+    # Just a regular notification setting, this will be used by the special 'filter not found' notification
+    notification_form_data = {"notification_urls": notification_url,
+                              "notification_title": "New ChangeDetection.io Notification - {watch_url}",
+                              "notification_body": "BASE URL: {base_url}\n"
+                                                   "Watch URL: {watch_url}\n"
+                                                   "Watch UUID: {watch_uuid}\n"
+                                                   "Watch title: {watch_title}\n"
+                                                   "Watch tag: {watch_tag}\n"
+                                                   "Preview: {preview_url}\n"
+                                                   "Diff URL: {diff_url}\n"
+                                                   "Snapshot: {current_snapshot}\n"
+                                                   "Diff: {diff}\n"
+                                                   "Diff Full: {diff_full}\n"
+                                                   ":-)",
+                              "notification_format": "Text"}
+
+    notification_form_data.update({
+        "url": test_url,
+        "tag": "my tag",
+        "title": "my title",
+        "headers": "",
+        "css_filter": '.ticket-available',
+        "fetch_backend": "html_requests"})
+
+    res = client.post(
+        url_for("edit_page", uuid="first"),
+        data=notification_form_data,
+        follow_redirects=True
+    )
+    assert b"Updated watch." in res.data
+    time.sleep(3)
+
+    # Shouldn't exist, shouldn't have fired
+    assert not os.path.isfile("test-datastore/notification.txt")
+    # Now the filter should exist
+    set_response_with_filter()
+    client.get(url_for("form_watch_checknow"), follow_redirects=True)
+    time.sleep(3)
+
+    assert os.path.isfile("test-datastore/notification.txt")
+
+    with open("test-datastore/notification.txt", 'r') as f:
+        notification = f.read()
+
+    assert 'Ticket now on sale' in notification
+    os.unlink("test-datastore/notification.txt")
+
+
+    # Test that if it gets removed, then re-added, we get a notification
+    # Remove the target and re-add it, we should get a new notification
+    set_response_without_filter()
+    client.get(url_for("form_watch_checknow"), follow_redirects=True)
+    time.sleep(3)
+    assert not os.path.isfile("test-datastore/notification.txt")
+
+    set_response_with_filter()
+    client.get(url_for("form_watch_checknow"), follow_redirects=True)
+    time.sleep(3)
+    assert os.path.isfile("test-datastore/notification.txt")
+
+# Also test that the filter was updated after the first one was requested

changedetectionio/tests/test_filter_failure_notification.py

@@ -0,0 +1,144 @@
+import os
+import time
+import re
+from flask import url_for
+from .util import set_original_response, live_server_setup
+from changedetectionio.model import App
+
+
+def set_response_with_filter():
+    test_return_data = """<html>
+       <body>
+     Some initial text</br>
+     <p>Which is across multiple lines</p>
+     </br>
+     So let's see what happens.  </br>
+     <div id="nope-doesnt-exist">Some text thats the same</div>     
+     </body>
+     </html>
+    """
+
+    with open("test-datastore/endpoint-content.txt", "w") as f:
+        f.write(test_return_data)
+    return None
+
+def run_filter_test(client, content_filter):
+
+    # Give the endpoint time to spin up
+    time.sleep(1)
+    # cleanup for the next
+    client.get(
+        url_for("form_delete", uuid="all"),
+        follow_redirects=True
+    )
+    if os.path.isfile("test-datastore/notification.txt"):
+        os.unlink("test-datastore/notification.txt")
+
+    # Add our URL to the import page
+    test_url = url_for('test_endpoint', _external=True)
+    res = client.post(
+        url_for("form_quick_watch_add"),
+        data={"url": test_url, "tag": ''},
+        follow_redirects=True
+    )
+
+    assert b"Watch added" in res.data
+
+    # Give the thread time to pick up the first version
+    time.sleep(3)
+
+    # Goto the edit page, add our ignore text
+    # Add our URL to the import page
+    url = url_for('test_notification_endpoint', _external=True)
+    notification_url = url.replace('http', 'json')
+
+    print(">>>> Notification URL: " + notification_url)
+
+    # Just a regular notification setting, this will be used by the special 'filter not found' notification
+    notification_form_data = {"notification_urls": notification_url,
+                              "notification_title": "New ChangeDetection.io Notification - {watch_url}",
+                              "notification_body": "BASE URL: {base_url}\n"
+                                                   "Watch URL: {watch_url}\n"
+                                                   "Watch UUID: {watch_uuid}\n"
+                                                   "Watch title: {watch_title}\n"
+                                                   "Watch tag: {watch_tag}\n"
+                                                   "Preview: {preview_url}\n"
+                                                   "Diff URL: {diff_url}\n"
+                                                   "Snapshot: {current_snapshot}\n"
+                                                   "Diff: {diff}\n"
+                                                   "Diff Full: {diff_full}\n"
+                                                   ":-)",
+                              "notification_format": "Text"}
+
+    notification_form_data.update({
+        "url": test_url,
+        "tag": "my tag",
+        "title": "my title",
+        "headers": "",
+        "filter_failure_notification_send": 'y',
+        "css_filter": content_filter,
+        "fetch_backend": "html_requests"})
+
+    res = client.post(
+        url_for("edit_page", uuid="first"),
+        data=notification_form_data,
+        follow_redirects=True
+    )
+    assert b"Updated watch." in res.data
+    time.sleep(3)
+
+    # Now the notification should not exist, because we didnt reach the threshold
+    assert not os.path.isfile("test-datastore/notification.txt")
+
+    for i in range(0, App._FILTER_FAILURE_THRESHOLD_ATTEMPTS_DEFAULT):
+        res = client.get(url_for("form_watch_checknow"), follow_redirects=True)
+        time.sleep(3)
+
+    # We should see something in the frontend
+    assert b'Warning, filter' in res.data
+
+    # Now it should exist and contain our "filter not found" alert
+    assert os.path.isfile("test-datastore/notification.txt")
+    notification = False
+    with open("test-datastore/notification.txt", 'r') as f:
+        notification = f.read()
+    assert 'CSS/xPath filter was not present in the page' in notification
+    assert content_filter.replace('"', '\\"') in notification
+
+    # Remove it and prove that it doesnt trigger when not expected
+    os.unlink("test-datastore/notification.txt")
+    set_response_with_filter()
+
+    for i in range(0, App._FILTER_FAILURE_THRESHOLD_ATTEMPTS_DEFAULT):
+        client.get(url_for("form_watch_checknow"), follow_redirects=True)
+        time.sleep(3)
+
+    # It should have sent a notification, but..
+    assert os.path.isfile("test-datastore/notification.txt")
+    # but it should not contain the info about the failed filter
+    with open("test-datastore/notification.txt", 'r') as f:
+        notification = f.read()
+    assert not 'CSS/xPath filter was not present in the page' in notification
+
+    # cleanup for the next
+    client.get(
+        url_for("form_delete", uuid="all"),
+        follow_redirects=True
+    )
+    os.unlink("test-datastore/notification.txt")
+
+
+def test_setup(live_server):
+    live_server_setup(live_server)
+
+def test_check_css_filter_failure_notification(client, live_server):
+    set_original_response()
+    time.sleep(1)
+    run_filter_test(client, '#nope-doesnt-exist')
+
+def test_check_xpath_filter_failure_notification(client, live_server):
+    set_original_response()
+    time.sleep(1)
+    run_filter_test(client, '//*[@id="nope-doesnt-exist"]')
+
+# Test that notification is never sent

changedetectionio/tests/test_ignorestatuscode.py

@@ -137,54 +137,3 @@ def test_403_page_check_works_with_ignore_status_code(client, live_server):
     res = client.get(url_for("index"))
     assert b'unviewed' in res.data
 
-
-# Tests the whole stack works with staus codes ignored
-def test_403_page_check_fails_without_ignore_status_code(client, live_server):
-    sleep_time_for_fetch_thread = 3
-
-    set_original_response()
-
-    # Give the endpoint time to spin up
-    time.sleep(1)
-
-    # Add our URL to the import page
-    test_url = url_for('test_endpoint', status_code=403, _external=True)
-    res = client.post(
-        url_for("import_page"),
-        data={"urls": test_url},
-        follow_redirects=True
-    )
-    assert b"1 Imported" in res.data
-
-    # Trigger a check
-    client.get(url_for("form_watch_checknow"), follow_redirects=True)
-
-    # Give the thread time to pick it up
-    time.sleep(sleep_time_for_fetch_thread)
-
-    # Goto the edit page, check our ignore option
-    # Add our URL to the import page
-    res = client.post(
-        url_for("edit_page", uuid="first"),
-        data={"url": test_url, "tag": "", "headers": "", 'fetch_backend': "html_requests"},
-        follow_redirects=True
-    )
-    assert b"Updated watch." in res.data
-
-    # Trigger a check
-    client.get(url_for("form_watch_checknow"), follow_redirects=True)
-
-    # Give the thread time to pick it up
-    time.sleep(sleep_time_for_fetch_thread)
-    #  Make a change
-    set_some_changed_response()
-
-    # Trigger a check
-    client.get(url_for("form_watch_checknow"), follow_redirects=True)
-    # Give the thread time to pick it up
-    time.sleep(sleep_time_for_fetch_thread)
-
-    # It should have 'unviewed' still
-    # Because it should be looking at only that 'sametext' id
-    res = client.get(url_for("index"))
-    assert b'Status Code 403' in res.data

changedetectionio/tests/test_jinja2.py

@@ -0,0 +1,33 @@
+#!/usr/bin/python3
+
+import time
+from flask import url_for
+from .util import live_server_setup
+
+
+# If there was only a change in the whitespacing, then we shouldnt have a change detected
+def test_jinja2_in_url_query(client, live_server):
+    live_server_setup(live_server)
+
+    # Give the endpoint time to spin up
+    time.sleep(1)
+
+    # Add our URL to the import page
+    test_url = url_for('test_return_query', _external=True)
+
+    # because url_for() will URL-encode the var, but we dont here
+    full_url = "{}?{}".format(test_url,
+                              "date={% now 'Europe/Berlin', '%Y' %}.{% now 'Europe/Berlin', '%m' %}.{% now 'Europe/Berlin', '%d' %}", )
+    res = client.post(
+        url_for("form_quick_watch_add"),
+        data={"url": full_url, "tag": "test"},
+        follow_redirects=True
+    )
+    assert b"Watch added" in res.data
+    time.sleep(3)
+    # It should report nothing found (no new 'unviewed' class)
+    res = client.get(
+        url_for("preview_page", uuid="first"),
+        follow_redirects=True
+    )
+    assert b'date=2' in res.data

changedetectionio/tests/test_jsonpath_jq_selector.py

@@ -2,10 +2,15 @@
 # coding=utf-8
 
 import time
-from flask import url_for
+from flask import url_for, escape
 from . util import live_server_setup
 import pytest
+jq_support = True
 
+try:
+    import jq
+except ModuleNotFoundError:
+    jq_support = False
 
 def test_setup(live_server):
     live_server_setup(live_server)
@@ -36,16 +41,28 @@ and it can also be repeated
     from .. import html_tools
 
     # See that we can find the second <script> one, which is not broken, and matches our filter
-    text = html_tools.extract_json_as_string(content, "$.offers.price")
+    text = html_tools.extract_json_as_string(content, "json:$.offers.price")
     assert text == "23.5"
 
-    text = html_tools.extract_json_as_string('{"id":5}', "$.id")
+    # also check for jq
+    if jq_support:
+        text = html_tools.extract_json_as_string(content, "jq:.offers.price")
+        assert text == "23.5"
+
+        text = html_tools.extract_json_as_string('{"id":5}', "jq:.id")
+        assert text == "5"
+
+    text = html_tools.extract_json_as_string('{"id":5}', "json:$.id")
     assert text == "5"
 
     # When nothing at all is found, it should throw JSONNOTFound
     # Which is caught and shown to the user in the watch-overview table
     with pytest.raises(html_tools.JSONNotFound) as e_info:
-        html_tools.extract_json_as_string('COMPLETE GIBBERISH, NO JSON!', "$.id")
+        html_tools.extract_json_as_string('COMPLETE GIBBERISH, NO JSON!', "json:$.id")
+
+    if jq_support:
+        with pytest.raises(html_tools.JSONNotFound) as e_info:
+            html_tools.extract_json_as_string('COMPLETE GIBBERISH, NO JSON!', "jq:.id")
 
 def set_original_ext_response():
     data = """
@@ -66,6 +83,7 @@ def set_original_ext_response():
 
     with open("test-datastore/endpoint-content.txt", "w") as f:
         f.write(data)
+    return None
 
 def set_modified_ext_response():
     data = """
@@ -86,6 +104,7 @@ def set_modified_ext_response():
 
     with open("test-datastore/endpoint-content.txt", "w") as f:
         f.write(data)
+    return None
 
 def set_original_response():
     test_return_data = """
@@ -184,10 +203,10 @@ def test_check_json_without_filter(client, live_server):
     assert b'&#34;&lt;b&gt;' in res.data
     assert res.data.count(b'{\n') >= 2
 
+    res = client.get(url_for("form_delete", uuid="all"), follow_redirects=True)
+    assert b'Deleted' in res.data
 
-def test_check_json_filter(client, live_server):
-    json_filter = 'json:boss.name'
-
+def check_json_filter(json_filter, client, live_server):
     set_original_response()
 
     # Give the endpoint time to spin up
@@ -226,7 +245,7 @@ def test_check_json_filter(client, live_server):
     res = client.get(
         url_for("edit_page", uuid="first"),
     )
-    assert bytes(json_filter.encode('utf-8')) in res.data
+    assert bytes(escape(json_filter).encode('utf-8')) in res.data
 
     # Trigger a check
     client.get(url_for("form_watch_checknow"), follow_redirects=True)
@@ -252,10 +271,17 @@ def test_check_json_filter(client, live_server):
     # And #462 - check we see the proper utf-8 string there
     assert "Örnsköldsvik".encode('utf-8') in res.data
 
+    res = client.get(url_for("form_delete", uuid="all"), follow_redirects=True)
+    assert b'Deleted' in res.data
 
-def test_check_json_filter_bool_val(client, live_server):
-    json_filter = "json:$['available']"
+def test_check_jsonpath_filter(client, live_server):
+    check_json_filter('json:boss.name', client, live_server)
 
+def test_check_jq_filter(client, live_server):
+    if jq_support:
+        check_json_filter('jq:.boss.name', client, live_server)
+
+def check_json_filter_bool_val(json_filter, client, live_server):
     set_original_response()
 
     # Give the endpoint time to spin up
@@ -304,14 +330,22 @@ def test_check_json_filter_bool_val(client, live_server):
     # But the change should be there, tho its hard to test the change was detected because it will show old and new versions
     assert b'false' in res.data
 
+    res = client.get(url_for("form_delete", uuid="all"), follow_redirects=True)
+    assert b'Deleted' in res.data
+
+def test_check_jsonpath_filter_bool_val(client, live_server):
+    check_json_filter_bool_val("json:$['available']", client, live_server)
+
+def test_check_jq_filter_bool_val(client, live_server):
+    if jq_support:
+        check_json_filter_bool_val("jq:.available", client, live_server)
+
 # Re #265 - Extended JSON selector test
 # Stuff to consider here
 # - Selector should be allowed to return empty when it doesnt match (people might wait for some condition)
 # - The 'diff' tab could show the old and new content
 # - Form should let us enter a selector that doesnt (yet) match anything
-def test_check_json_ext_filter(client, live_server):
-    json_filter = 'json:$[?(@.status==Sold)]'
-
+def check_json_ext_filter(json_filter, client, live_server):
     set_original_ext_response()
 
     # Give the endpoint time to spin up
@@ -350,7 +384,7 @@ def test_check_json_ext_filter(client, live_server):
     res = client.get(
         url_for("edit_page", uuid="first"),
     )
-    assert bytes(json_filter.encode('utf-8')) in res.data
+    assert bytes(escape(json_filter).encode('utf-8')) in res.data
 
     # Trigger a check
     client.get(url_for("form_watch_checknow"), follow_redirects=True)
@@ -376,3 +410,12 @@ def test_check_json_ext_filter(client, live_server):
     assert b'ForSale' not in res.data
     assert b'Sold' in res.data
 
+    res = client.get(url_for("form_delete", uuid="all"), follow_redirects=True)
+    assert b'Deleted' in res.data
+
+def test_check_jsonpath_ext_filter(client, live_server):
+    check_json_ext_filter('json:$[?(@.status==Sold)]', client, live_server)
+
+def test_check_jq_ext_filter(client, live_server):
+    if jq_support:
+        check_json_ext_filter('jq:.[] | select(.status | contains("Sold"))', client, live_server)

changedetectionio/tests/test_notification.py

@@ -4,7 +4,13 @@ import re
 from flask import url_for
 from . util import set_original_response, set_modified_response, set_more_modified_response, live_server_setup
 import logging
-from changedetectionio.notification import default_notification_body, default_notification_title
+
+from changedetectionio.notification import (
+    default_notification_body,
+    default_notification_format,
+    default_notification_title,
+    valid_notification_formats,
+)
 
 def test_setup(live_server):
     live_server_setup(live_server)
@@ -20,9 +26,26 @@ def test_check_notification(client, live_server):
 
     # Re 360 - new install should have defaults set
     res = client.get(url_for("settings_page"))
+    notification_url = url_for('test_notification_endpoint', _external=True).replace('http', 'json')
+
     assert default_notification_body.encode() in res.data
     assert default_notification_title.encode() in res.data
 
+    #####################
+    # Set this up for when we remove the notification from the watch, it should fallback with these details
+    res = client.post(
+        url_for("settings_page"),
+        data={"application-notification_urls": notification_url,
+              "application-notification_title": "fallback-title "+default_notification_title,
+              "application-notification_body": "fallback-body "+default_notification_body,
+              "application-notification_format": default_notification_format,
+              "requests-time_between_check-minutes": 180,
+              'application-fetch_backend': "html_requests"},
+        follow_redirects=True
+    )
+
+    assert b"Settings updated." in res.data
+
     # When test mode is in BASE_URL env mode, we should see this already configured
     env_base_url = os.getenv('BASE_URL', '').strip()
     if len(env_base_url):
@@ -36,7 +59,7 @@ def test_check_notification(client, live_server):
     # Add our URL to the import page
     test_url = url_for('test_endpoint', _external=True)
     res = client.post(
-        url_for("form_watch_add"),
+        url_for("form_quick_watch_add"),
         data={"url": test_url, "tag": ''},
         follow_redirects=True
     )
@@ -47,8 +70,6 @@ def test_check_notification(client, live_server):
 
     # Goto the edit page, add our ignore text
     # Add our URL to the import page
-    url = url_for('test_notification_endpoint', _external=True)
-    notification_url = url.replace('http', 'json')
 
     print (">>>> Notification URL: "+notification_url)
 
@@ -154,6 +175,34 @@ def test_check_notification(client, live_server):
     time.sleep(1)
     assert os.path.exists("test-datastore/notification.txt") == False
 
+    res = client.get(url_for("notification_logs"))
+    # be sure we see it in the output log
+    assert b'New ChangeDetection.io Notification - ' + test_url.encode('utf-8') in res.data
+
+    set_original_response()
+    res = client.post(
+        url_for("edit_page", uuid="first"),
+        data={
+        "url": test_url,
+        "tag": "my tag",
+        "title": "my title",
+        "notification_urls": '',
+        "notification_title": '',
+        "notification_body": '',
+        "notification_format": default_notification_format,
+        "fetch_backend": "html_requests"},
+        follow_redirects=True
+    )
+    assert b"Updated watch." in res.data
+
+    time.sleep(2)
+
+    # Verify what was sent as a notification, this file should exist
+    with open("test-datastore/notification.txt", "r") as f:
+        notification_submission = f.read()
+    assert "fallback-title" in notification_submission
+    assert "fallback-body" in notification_submission
+
     # cleanup for the next
     client.get(
         url_for("form_delete", uuid="all"),
@@ -168,7 +217,7 @@ def test_notification_validation(client, live_server):
     # Add our URL to the import page
     test_url = url_for('test_endpoint', _external=True)
     res = client.post(
-        url_for("form_watch_add"),
+        url_for("form_quick_watch_add"),
         data={"url": test_url, "tag": 'nice one'},
         follow_redirects=True
     )
@@ -176,20 +225,20 @@ def test_notification_validation(client, live_server):
     assert b"Watch added" in res.data
 
     # Re #360 some validation
-    res = client.post(
-        url_for("edit_page", uuid="first"),
-        data={"notification_urls": 'json://localhost/foobar',
-              "notification_title": "",
-              "notification_body": "",
-              "notification_format": "Text",
-              "url": test_url,
-              "tag": "my tag",
-              "title": "my title",
-              "headers": "",
-              "fetch_backend": "html_requests"},
-        follow_redirects=True
-    )
-    assert b"Notification Body and Title is required when a Notification URL is used" in res.data
+#    res = client.post(
+#        url_for("edit_page", uuid="first"),
+#        data={"notification_urls": 'json://localhost/foobar',
+#              "notification_title": "",
+#              "notification_body": "",
+#              "notification_format": "Text",
+#              "url": test_url,
+#              "tag": "my tag",
+#              "title": "my title",
+#              "headers": "",
+#              "fetch_backend": "html_requests"},
+#        follow_redirects=True
+#    )
+#    assert b"Notification Body and Title is required when a Notification URL is used" in res.data
 
     # Now adding a wrong token should give us an error
     res = client.post(
@@ -211,3 +260,5 @@ def test_notification_validation(client, live_server):
         url_for("form_delete", uuid="all"),
         follow_redirects=True
     )
+
+

changedetectionio/tests/test_notification_errors.py

@@ -16,7 +16,7 @@ def test_check_notification_error_handling(client, live_server):
     # use a different URL so that it doesnt interfere with the actual check until we are ready
     test_url = url_for('test_endpoint', _external=True)
     res = client.post(
-        url_for("form_watch_add"),
+        url_for("form_quick_watch_add"),
         data={"url": "https://changedetection.io/CHANGELOG.txt", "tag": ''},
         follow_redirects=True
     )

changedetectionio/tests/test_obfuscations.py

@@ -0,0 +1,43 @@
+#!/usr/bin/python3
+
+import time
+from flask import url_for
+from .util import live_server_setup
+
+
+def set_original_ignore_response():
+    test_return_data = """<html>
+       <body>
+     <span>The price is</span><span>$<!-- -->90<!-- -->.<!-- -->74</span>
+     </body>
+     </html>
+
+    """
+
+    with open("test-datastore/endpoint-content.txt", "w") as f:
+        f.write(test_return_data)
+
+
+def test_obfuscations(client, live_server):
+    set_original_ignore_response()
+    live_server_setup(live_server)
+    time.sleep(1)
+    # Add our URL to the import page
+    test_url = url_for('test_endpoint', _external=True)
+    res = client.post(
+        url_for("import_page"),
+        data={"urls": test_url},
+        follow_redirects=True
+    )
+    assert b"1 Imported" in res.data
+
+    # Give the thread time to pick it up
+    time.sleep(3)
+
+    # Check HTML conversion detected and workd
+    res = client.get(
+        url_for("preview_page", uuid="first"),
+        follow_redirects=True
+    )
+
+    assert b'$90.74' in res.data

changedetectionio/tests/test_unique_lines.py

@@ -0,0 +1,104 @@
+#!/usr/bin/python3
+
+import time
+from flask import url_for
+from .util import live_server_setup
+
+
+def set_original_ignore_response():
+    test_return_data = """<html>
+     <body>
+     <p>Some initial text</p>
+     <p>Which is across multiple lines</p>
+     <p>So let's see what happens.</p>
+     </body>
+     </html>
+    """
+
+    with open("test-datastore/endpoint-content.txt", "w") as f:
+        f.write(test_return_data)
+
+
+# The same but just re-ordered the text
+def set_modified_swapped_lines():
+    # Re-ordered and with some whitespacing, should get stripped() too.
+    test_return_data = """<html>
+     <body>
+     <p>Some initial text</p>
+     <p>   So let's see what happens.</p>
+     <p>&nbsp;Which is across multiple lines</p>     
+     </body>
+     </html>
+    """
+
+    with open("test-datastore/endpoint-content.txt", "w") as f:
+        f.write(test_return_data)
+
+
+def set_modified_with_trigger_text_response():
+    test_return_data = """<html>
+     <body>
+     <p>Some initial text</p>
+     <p>So let's see what happens.</p>
+     <p>and a new line!</p>
+     <p>Which is across multiple lines</p>     
+     </body>
+     </html>
+    """
+
+    with open("test-datastore/endpoint-content.txt", "w") as f:
+        f.write(test_return_data)
+
+
+def test_unique_lines_functionality(client, live_server):
+    live_server_setup(live_server)
+
+    sleep_time_for_fetch_thread = 3
+
+    set_original_ignore_response()
+    # Give the endpoint time to spin up
+    time.sleep(1)
+
+    # Add our URL to the import page
+    test_url = url_for('test_endpoint', _external=True)
+    res = client.post(
+        url_for("import_page"),
+        data={"urls": test_url},
+        follow_redirects=True
+    )
+    assert b"1 Imported" in res.data
+    time.sleep(sleep_time_for_fetch_thread)
+
+    # Add our URL to the import page
+    res = client.post(
+        url_for("edit_page", uuid="first"),
+        data={"check_unique_lines": "y",
+              "url": test_url,
+              "fetch_backend": "html_requests"},
+        follow_redirects=True
+    )
+    assert b"Updated watch." in res.data
+    assert b'unviewed' not in res.data
+
+    #  Make a change
+    set_modified_swapped_lines()
+
+    time.sleep(sleep_time_for_fetch_thread)
+    # Trigger a check
+    client.get(url_for("form_watch_checknow"), follow_redirects=True)
+
+    # Give the thread time to pick it up
+    time.sleep(sleep_time_for_fetch_thread)
+
+    # It should report nothing found (no new 'unviewed' class)
+    res = client.get(url_for("index"))
+    assert b'unviewed' not in res.data
+
+
+    # Now set the content which contains the new text and re-ordered existing text
+    set_modified_with_trigger_text_response()
+    client.get(url_for("form_watch_checknow"), follow_redirects=True)
+    time.sleep(sleep_time_for_fetch_thread)
+    res = client.get(url_for("index"))
+    assert b'unviewed' in res.data
+

changedetectionio/tests/test_xpath_selector.py

@@ -86,6 +86,7 @@ def test_check_xpath_filter_utf8(client, live_server):
         follow_redirects=True
     )
     assert b"1 Imported" in res.data
+    time.sleep(1)
     res = client.post(
         url_for("edit_page", uuid="first"),
         data={"css_filter": filter, "url": test_url, "tag": "", "headers": "", 'fetch_backend': "html_requests"},
@@ -99,6 +100,68 @@ def test_check_xpath_filter_utf8(client, live_server):
     assert b'Deleted' in res.data
 
 
+# Handle utf-8 charset replies https://github.com/dgtlmoon/changedetection.io/pull/613
+def test_check_xpath_text_function_utf8(client, live_server):
+    filter='//item/title/text()'
+
+    d='''<?xml version="1.0" encoding="UTF-8"?>
+<rss xmlns:taxo="http://purl.org/rss/1.0/modules/taxonomy/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" xmlns:dc="http://purl.org/dc/elements/1.1/" version="2.0">
+	<channel>
+		<title>rpilocator.com</title>
+		<link>https://rpilocator.com</link>
+		<description>Find Raspberry Pi Computers in Stock</description>
+		<lastBuildDate>Thu, 19 May 2022 23:27:30 GMT</lastBuildDate>
+		<image>
+			<url>https://rpilocator.com/favicon.png</url>
+			<title>rpilocator.com</title>
+			<link>https://rpilocator.com/</link>
+			<width>32</width>
+			<height>32</height>
+		</image>
+		<item>
+			<title>Stock Alert (UK): RPi CM4</title>
+			<foo>something else unrelated</foo>
+		</item>
+		<item>
+			<title>Stock Alert (UK): Big monitor</title>
+			<foo>something else unrelated</foo>
+		</item>		
+	</channel>
+</rss>'''
+
+    with open("test-datastore/endpoint-content.txt", "w") as f:
+        f.write(d)
+
+    # Add our URL to the import page
+    test_url = url_for('test_endpoint', _external=True, content_type="application/rss+xml;charset=UTF-8")
+    res = client.post(
+        url_for("import_page"),
+        data={"urls": test_url},
+        follow_redirects=True
+    )
+    assert b"1 Imported" in res.data
+    time.sleep(1)
+    res = client.post(
+        url_for("edit_page", uuid="first"),
+        data={"css_filter": filter, "url": test_url, "tag": "", "headers": "", 'fetch_backend': "html_requests"},
+        follow_redirects=True
+    )
+    assert b"Updated watch." in res.data
+    time.sleep(3)
+    res = client.get(url_for("index"))
+    assert b'Unicode strings with encoding declaration are not supported.' not in res.data
+
+    # The service should echo back the request headers
+    res = client.get(
+        url_for("preview_page", uuid="first"),
+        follow_redirects=True
+    )
+
+    assert b'<div class="">Stock Alert (UK): RPi CM4' in res.data
+    assert b'<div class="">Stock Alert (UK): Big monitor' in res.data
+
+    res = client.get(url_for("form_delete", uuid="all"), follow_redirects=True)
+    assert b'Deleted' in res.data
 
 def test_check_markup_xpath_filter_restriction(client, live_server):
     sleep_time_for_fetch_thread = 3

changedetectionio/tests/util.py

@@ -2,6 +2,8 @@
 
 from flask import make_response, request
 from flask import url_for
+import logging
+import time
 
 def set_original_response():
     test_return_data = """<html>
@@ -68,6 +70,31 @@ def extract_api_key_from_UI(client):
     api_key = m.group(1)
     return api_key.strip()
 
+
+# kinda funky, but works for now
+def extract_UUID_from_client(client):
+    import re
+    res = client.get(
+        url_for("index"),
+    )
+    # <span id="api-key">{{api_key}}</span>
+
+    m = re.search('edit/(.+?)"', str(res.data))
+    uuid = m.group(1)
+    return uuid.strip()
+
+def wait_for_all_checks(client):
+    # Loop waiting until done..
+    attempt=0
+    while attempt < 60:
+        time.sleep(1)
+        res = client.get(url_for("index"))
+        if not b'Checking now' in res.data:
+            break
+        logging.getLogger().info("Waiting for watch-list to not say 'Checking now'.. {}".format(attempt))
+
+        attempt += 1
+
 def live_server_setup(live_server):
 
     @live_server.app.route('/test-endpoint')
@@ -132,4 +159,10 @@ def live_server_setup(live_server):
         ret = " ".join([auth.username, auth.password, auth.type])
         return ret
 
+    # Just return some GET var
+    @live_server.app.route('/test-return-query', methods=['GET'])
+    def test_return_query():
+        return request.query_string
+
     live_server.start()
+

changedetectionio/tests/visualselector/__init__.py

@@ -0,0 +1,2 @@
+"""Tests for the app."""
+

changedetectionio/tests/visualselector/conftest.py

@@ -0,0 +1,3 @@
+#!/usr/bin/python3
+
+from .. import conftest

changedetectionio/tests/visualselector/test_fetch_data.py

@@ -0,0 +1,54 @@
+#!/usr/bin/python3
+
+import time
+from flask import url_for
+from ..util import live_server_setup, wait_for_all_checks, extract_UUID_from_client
+
+# Add a site in paused mode, add an invalid filter, we should still have visual selector data ready
+def test_visual_selector_content_ready(client, live_server):
+    import os
+    import json
+
+    assert os.getenv('PLAYWRIGHT_DRIVER_URL'), "Needs PLAYWRIGHT_DRIVER_URL set for this test"
+    live_server_setup(live_server)
+    time.sleep(1)
+
+    # Add our URL to the import page, because the docker container (playwright/selenium) wont be able to connect to our usual test url
+    test_url = "https://changedetection.io/ci-test/test-runjs.html"
+
+    res = client.post(
+        url_for("form_quick_watch_add"),
+        data={"url": test_url, "tag": '', 'edit_and_watch_submit_button': 'Edit > Watch'},
+        follow_redirects=True
+    )
+    assert b"Watch added in Paused state, saving will unpause" in res.data
+
+    res = client.post(
+        url_for("edit_page", uuid="first", unpause_on_save=1),
+        data={
+              "url": test_url,
+              "tag": "",
+              "headers": "",
+              'fetch_backend': "html_webdriver",
+              'webdriver_js_execute_code': 'document.querySelector("button[name=test-button]").click();'
+        },
+        follow_redirects=True
+    )
+    assert b"unpaused" in res.data
+    time.sleep(1)
+    wait_for_all_checks(client)
+    uuid = extract_UUID_from_client(client)
+
+    # Check the JS execute code before extract worked
+    res = client.get(
+        url_for("preview_page", uuid="first"),
+        follow_redirects=True
+    )
+    assert b'I smell JavaScript' in res.data
+
+    assert os.path.isfile(os.path.join('test-datastore', uuid, 'last-screenshot.png')), "last-screenshot.png should exist"
+    assert os.path.isfile(os.path.join('test-datastore', uuid, 'elements.json')), "xpath elements.json data should exist"
+
+    # Open it and see if it roughly looks correct
+    with open(os.path.join('test-datastore', uuid, 'elements.json'), 'r') as f:
+        json.load(f)

changedetectionio/update_worker.py

@@ -1,24 +1,124 @@
+import os
 import threading
 import queue
 import time
 
 from changedetectionio import content_fetcher
+from changedetectionio.html_tools import FilterNotFoundInResponse
+
 # A single update worker
 #
 # Requests for checking on a single site(watch) from a queue of watches
 # (another process inserts watches into the queue that are time-ready for checking)
 
+import logging
+import sys
 
 class update_worker(threading.Thread):
     current_uuid = None
 
     def __init__(self, q, notification_q, app, datastore, *args, **kwargs):
+        logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
         self.q = q
         self.app = app
         self.notification_q = notification_q
         self.datastore = datastore
         super().__init__(*args, **kwargs)
 
+    def send_content_changed_notification(self, t, watch_uuid):
+
+        from changedetectionio import diff
+
+        from changedetectionio.notification import (
+            default_notification_format_for_watch
+        )
+
+        n_object = {}
+        watch = self.datastore.data['watching'].get(watch_uuid, False)
+        if not watch:
+            return
+
+        watch_history = watch.history
+        dates = list(watch_history.keys())
+        # Theoretically it's possible that this could be just 1 long,
+        # - In the case that the timestamp key was not unique
+        if len(dates) == 1:
+            raise ValueError(
+                "History index had 2 or more, but only 1 date loaded, timestamps were not unique? maybe two of the same timestamps got written, needs more delay?"
+            )
+
+        n_object['notification_urls'] = watch['notification_urls'] if len(watch['notification_urls']) else \
+            self.datastore.data['settings']['application']['notification_urls']
+
+        n_object['notification_title'] = watch['notification_title'] if watch['notification_title'] else \
+            self.datastore.data['settings']['application']['notification_title']
+
+        n_object['notification_body'] = watch['notification_body'] if watch['notification_body'] else \
+            self.datastore.data['settings']['application']['notification_body']
+
+        n_object['notification_format'] = watch['notification_format'] if watch['notification_format'] != default_notification_format_for_watch else \
+            self.datastore.data['settings']['application']['notification_format']
+
+
+        # Only prepare to notify if the rules above matched
+        if 'notification_urls' in n_object and n_object['notification_urls']:
+            # HTML needs linebreak, but MarkDown and Text can use a linefeed
+            if n_object['notification_format'] == 'HTML':
+                line_feed_sep = "</br>"
+            else:
+                line_feed_sep = "\n"
+
+            with open(watch_history[dates[-1]], 'rb') as f:
+                snapshot_contents = f.read()
+
+            n_object.update({
+                'watch_url': watch['url'],
+                'uuid': watch_uuid,
+                'current_snapshot': snapshot_contents.decode('utf-8'),
+                'diff': diff.render_diff(watch_history[dates[-2]], watch_history[dates[-1]], line_feed_sep=line_feed_sep),
+                'diff_full': diff.render_diff(watch_history[dates[-2]], watch_history[dates[-1]], True, line_feed_sep=line_feed_sep)
+            })
+            logging.info (">> SENDING NOTIFICATION")
+            self.notification_q.put(n_object)
+        else:
+            logging.info (">> NO Notification sent, notification_url was empty in both watch and system")
+
+    def send_filter_failure_notification(self, watch_uuid):
+
+        threshold = self.datastore.data['settings']['application'].get('filter_failure_notification_threshold_attempts')
+        watch = self.datastore.data['watching'].get(watch_uuid, False)
+        if not watch:
+            return
+
+        n_object = {'notification_title': 'Changedetection.io - Alert - CSS/xPath filter was not present in the page',
+                    'notification_body': "Your configured CSS/xPath filter of '{}' for {{watch_url}} did not appear on the page after {} attempts, did the page change layout?\n\nLink: {{base_url}}/edit/{{watch_uuid}}\n\nThanks - Your omniscient changedetection.io installation :)\n".format(
+                        watch['css_filter'],
+                        threshold),
+                    'notification_format': 'text'}
+
+        if len(watch['notification_urls']):
+            n_object['notification_urls'] = watch['notification_urls']
+
+        elif len(self.datastore.data['settings']['application']['notification_urls']):
+            n_object['notification_urls'] = self.datastore.data['settings']['application']['notification_urls']
+
+        # Only prepare to notify if the rules above matched
+        if 'notification_urls' in n_object:
+            n_object.update({
+                'watch_url': watch['url'],
+                'uuid': watch_uuid
+            })
+            self.notification_q.put(n_object)
+            print("Sent filter not found notification for {}".format(watch_uuid))
+
+    def cleanup_error_artifacts(self, uuid):
+        # All went fine, remove error artifacts
+        cleanup_files = ["last-error-screenshot.png", "last-error.txt"]
+        for f in cleanup_files:
+            full_path = os.path.join(self.datastore.datastore_path, uuid, f)
+            if os.path.isfile(full_path):
+                os.unlink(full_path)
+
     def run(self):
         from changedetectionio import fetch_site_status
 
@@ -27,7 +127,7 @@ class update_worker(threading.Thread):
         while not self.app.config.exit.is_set():
 
             try:
-                uuid = self.q.get(block=False)
+                priority, uuid = self.q.get(block=False)
             except queue.Empty:
                 pass
 
@@ -35,17 +135,17 @@ class update_worker(threading.Thread):
                 self.current_uuid = uuid
 
                 if uuid in list(self.datastore.data['watching'].keys()):
-
                     changed_detected = False
-                    contents = ""
+                    contents = b''
                     screenshot = False
                     update_obj= {}
                     xpath_data = False
+                    process_changedetection_results = True
+                    print("> Processing UUID {} Priority {} URL {}".format(uuid, priority, self.datastore.data['watching'][uuid]['url']))
                     now = time.time()
 
                     try:
-                        changed_detected, update_obj, contents, screenshot, xpath_data = update_handler.run(uuid)
-
+                        changed_detected, update_obj, contents = update_handler.run(uuid)
                         # Re #342
                         # In Python 3, all strings are sequences of Unicode characters. There is a bytes type that holds raw bytes.
                         # We then convert/.decode('utf-8') for the notification etc
@@ -53,33 +153,108 @@ class update_worker(threading.Thread):
                             raise Exception("Error - returned data from the fetch handler SHOULD be bytes")
                     except PermissionError as e:
                         self.app.logger.error("File permission error updating", uuid, str(e))
+                        process_changedetection_results = False
                     except content_fetcher.ReplyWithContentButNoText as e:
                         # Totally fine, it's by choice - just continue on, nothing more to care about
                         # Page had elements/content but no renderable text
-                        if self.datastore.data['watching'][uuid].get('css_filter'):
-                            self.datastore.update_watch(uuid=uuid, update_obj={'last_error': "Got HTML content but no text found (CSS / xPath Filter not found in page?)"})
+                        # Backend (not filters) gave zero output
+                        self.datastore.update_watch(uuid=uuid, update_obj={'last_error': "Got HTML content but no text found (With {} reply code).".format(e.status_code)})
+                        if e.screenshot:
+                            self.datastore.save_screenshot(watch_uuid=uuid, screenshot=e.screenshot)
+                        process_changedetection_results = False
+
+                    except content_fetcher.Non200ErrorCodeReceived as e:
+                        if e.status_code == 403:
+                            err_text = "Error - 403 (Access denied) received"
+                        elif e.status_code == 404:
+                            err_text = "Error - 404 (Page not found) received"
+                        elif e.status_code == 500:
+                            err_text = "Error - 500 (Internal server Error) received"
                         else:
-                            self.datastore.update_watch(uuid=uuid, update_obj={'last_error': "Got HTML content but no text found."})
-                        pass
+                            err_text = "Error - Request returned a HTTP error code {}".format(str(e.status_code))
+
+                        if e.screenshot:
+                            self.datastore.save_screenshot(watch_uuid=uuid, screenshot=e.screenshot, as_error=True)
+                        if e.xpath_data:
+                            self.datastore.save_xpath_data(watch_uuid=uuid, data=e.xpath_data, as_error=True)
+                        if e.page_text:
+                            self.datastore.save_error_text(watch_uuid=uuid, contents=e.page_text)
+
+                        self.datastore.update_watch(uuid=uuid, update_obj={'last_error': err_text,
+                                                                           # So that we get a trigger when the content is added again
+                                                                           'previous_md5': ''})
+                        process_changedetection_results = False
+
+                    except FilterNotFoundInResponse as e:
+                        if not self.datastore.data['watching'].get(uuid):
+                            continue
+
+                        err_text = "Warning, filter '{}' not found".format(str(e))
+                        self.datastore.update_watch(uuid=uuid, update_obj={'last_error': err_text,
+                                                                           # So that we get a trigger when the content is added again
+                                                                           'previous_md5': ''})
+
+                        # Only when enabled, send the notification
+                        if self.datastore.data['watching'][uuid].get('filter_failure_notification_send', False):
+                            c = self.datastore.data['watching'][uuid].get('consecutive_filter_failures', 5)
+                            c += 1
+                            # Send notification if we reached the threshold?
+                            threshold = self.datastore.data['settings']['application'].get('filter_failure_notification_threshold_attempts',
+                                                                                           0)
+                            print("Filter for {} not found, consecutive_filter_failures: {}".format(uuid, c))
+                            if threshold > 0 and c >= threshold:
+                                if not self.datastore.data['watching'][uuid].get('notification_muted'):
+                                    self.send_filter_failure_notification(uuid)
+                                c = 0
+
+                            self.datastore.update_watch(uuid=uuid, update_obj={'consecutive_filter_failures': c})
+
+                        process_changedetection_results = True
+
                     except content_fetcher.EmptyReply as e:
                         # Some kind of custom to-str handler in the exception handler that does this?
-                        err_text = "EmptyReply: Status Code {}".format(e.status_code)
+                        err_text = "EmptyReply - try increasing 'Wait seconds before extracting text', Status Code {}".format(e.status_code)
                         self.datastore.update_watch(uuid=uuid, update_obj={'last_error': err_text,
                                                                            'last_check_status': e.status_code})
                     except content_fetcher.ScreenshotUnavailable as e:
-                        err_text = "Screenshot unavailable, page did not render fully in the expected time"
+                        err_text = "Screenshot unavailable, page did not render fully in the expected time - try increasing 'Wait seconds before extracting text'"
+                        self.datastore.update_watch(uuid=uuid, update_obj={'last_error': err_text,
+                                                                           'last_check_status': e.status_code})
+                        process_changedetection_results = False
+                    except content_fetcher.JSActionExceptions as e:
+                        err_text = "Error running JS Actions - Page request - "+e.message
+                        if e.screenshot:
+                            self.datastore.save_screenshot(watch_uuid=uuid, screenshot=e.screenshot, as_error=True)
                         self.datastore.update_watch(uuid=uuid, update_obj={'last_error': err_text,
                                                                            'last_check_status': e.status_code})
                     except content_fetcher.PageUnloadable as e:
                         err_text = "Page request from server didnt respond correctly"
+                        if e.message:
+                            err_text = "{} - {}".format(err_text, e.message)
+
+                        if e.screenshot:
+                            self.datastore.save_screenshot(watch_uuid=uuid, screenshot=e.screenshot, as_error=True)
+
                         self.datastore.update_watch(uuid=uuid, update_obj={'last_error': err_text,
                                                                            'last_check_status': e.status_code})
-
                     except Exception as e:
                         self.app.logger.error("Exception reached processing watch UUID: %s - %s", uuid, str(e))
                         self.datastore.update_watch(uuid=uuid, update_obj={'last_error': str(e)})
-
+                        # Other serious error
+                        process_changedetection_results = False
                     else:
+                        # Crash protection, the watch entry could have been removed by this point (during a slow chrome fetch etc)
+                        if not self.datastore.data['watching'].get(uuid):
+                            continue
+
+                        # Mark that we never had any failures
+                        if not self.datastore.data['watching'][uuid].get('ignore_status_codes'):
+                            update_obj['consecutive_filter_failures'] = 0
+
+                        self.cleanup_error_artifacts(uuid)
+
+                    # Different exceptions mean that we may or may not want to bump the snapshot, trigger notifications etc
+                    if process_changedetection_results:
                         try:
                             watch = self.datastore.data['watching'][uuid]
                             fname = "" # Saved history text filename
@@ -87,59 +262,19 @@ class update_worker(threading.Thread):
                             # For the FIRST time we check a site, or a change detected, save the snapshot.
                             if changed_detected or not watch['last_checked']:
                                 # A change was detected
-                                fname = watch.save_history_text(contents=contents, timestamp=str(round(time.time())))
+                                watch.save_history_text(contents=contents, timestamp=str(round(time.time())))
 
-                            # Generally update anything interesting returned
                             self.datastore.update_watch(uuid=uuid, update_obj=update_obj)
 
                             # A change was detected
                             if changed_detected:
-                                n_object = {}
                                 print (">> Change detected in UUID {} - {}".format(uuid, watch['url']))
 
                                 # Notifications should only trigger on the second time (first time, we gather the initial snapshot)
                                 if watch.history_n >= 2:
+                                    if not self.datastore.data['watching'][uuid].get('notification_muted'):
+                                        self.send_content_changed_notification(self, watch_uuid=uuid)
 
-                                    dates = list(watch.history.keys())
-                                    prev_fname = watch.history[dates[-2]]
-
-
-                                    # Did it have any notification alerts to hit?
-                                    if len(watch['notification_urls']):
-                                        print(">>> Notifications queued for UUID from watch {}".format(uuid))
-                                        n_object['notification_urls'] = watch['notification_urls']
-                                        n_object['notification_title'] = watch['notification_title']
-                                        n_object['notification_body'] = watch['notification_body']
-                                        n_object['notification_format'] = watch['notification_format']
-
-                                    # No? maybe theres a global setting, queue them all
-                                    elif len(self.datastore.data['settings']['application']['notification_urls']):
-                                        print(">>> Watch notification URLs were empty, using GLOBAL notifications for UUID: {}".format(uuid))
-                                        n_object['notification_urls'] = self.datastore.data['settings']['application']['notification_urls']
-                                        n_object['notification_title'] = self.datastore.data['settings']['application']['notification_title']
-                                        n_object['notification_body'] = self.datastore.data['settings']['application']['notification_body']
-                                        n_object['notification_format'] = self.datastore.data['settings']['application']['notification_format']
-                                    else:
-                                        print(">>> NO notifications queued, watch and global notification URLs were empty.")
-
-                                    # Only prepare to notify if the rules above matched
-                                    if 'notification_urls' in n_object:
-                                        # HTML needs linebreak, but MarkDown and Text can use a linefeed
-                                        if n_object['notification_format'] == 'HTML':
-                                            line_feed_sep = "</br>"
-                                        else:
-                                            line_feed_sep = "\n"
-
-                                        from changedetectionio import diff
-                                        n_object.update({
-                                            'watch_url': watch['url'],
-                                            'uuid': uuid,
-                                            'current_snapshot': contents.decode('utf-8'),
-                                            'diff': diff.render_diff(prev_fname, fname, line_feed_sep=line_feed_sep),
-                                            'diff_full': diff.render_diff(prev_fname, fname, True, line_feed_sep=line_feed_sep)
-                                        })
-
-                                        self.notification_q.put(n_object)
 
                         except Exception as e:
                             # Catch everything possible here, so that if a worker crashes, we don't lose it until restart!
@@ -147,15 +282,16 @@ class update_worker(threading.Thread):
                             self.app.logger.error("Exception reached processing watch UUID: %s - %s", uuid, str(e))
                             self.datastore.update_watch(uuid=uuid, update_obj={'last_error': str(e)})
 
-                    finally:
-                        # Always record that we atleast tried
-                        self.datastore.update_watch(uuid=uuid, update_obj={'fetch_time': round(time.time() - now, 3),
-                                                                           'last_checked': round(time.time())})
-                        # Always save the screenshot if it's available
-                        if screenshot:
-                            self.datastore.save_screenshot(watch_uuid=uuid, screenshot=screenshot)
-                        if xpath_data:
-                            self.datastore.save_xpath_data(watch_uuid=uuid, data=xpath_data)
+
+                    # Always record that we atleast tried
+                    self.datastore.update_watch(uuid=uuid, update_obj={'fetch_time': round(time.time() - now, 3),
+                                                                       'last_checked': round(time.time())})
+
+                    # Always save the screenshot if it's available
+                    if update_handler.screenshot:
+                        self.datastore.save_screenshot(watch_uuid=uuid, screenshot=update_handler.screenshot)
+                    if update_handler.xpath_data:
+                        self.datastore.save_xpath_data(watch_uuid=uuid, data=update_handler.xpath_data)
 
 
                 self.current_uuid = None  # Done

docker-compose.yml

@@ -6,6 +6,8 @@ services:
       hostname: changedetection
       volumes:
         - changedetection-data:/datastore
+# Configurable proxy list support, see https://github.com/dgtlmoon/changedetection.io/wiki/Proxy-configuration#proxy-list-support
+#        - ./proxies.json:/datastore/proxies.json
 
   #    environment:
   #        Default listening port, can also be changed with the -p option
@@ -24,13 +26,13 @@ services:
   #             https://selenium-python.readthedocs.io/api.html#module-selenium.webdriver.common.proxy
   #
   #       Alternative Playwright URL, do not use "'s or 's!
-  #      - PLAYWRIGHT_DRIVER_URL=ws://playwright-chrome:3000/
+  #      - PLAYWRIGHT_DRIVER_URL=ws://playwright-chrome:3000/?stealth=1&--disable-web-security=true
   #
   #       Playwright proxy settings playwright_proxy_server, playwright_proxy_bypass, playwright_proxy_username, playwright_proxy_password
   #
   #             https://playwright.dev/python/docs/api/class-browsertype#browser-type-launch-option-proxy
   #
-  #        Plain requsts - proxy support example.
+  #        Plain requests - proxy support example.
   #      - HTTP_PROXY=socks5h://10.10.1.10:1080
   #      - HTTPS_PROXY=socks5h://10.10.1.10:1080
   #
@@ -43,6 +45,9 @@ services:
   #        Respect proxy_pass type settings, `proxy_set_header Host "localhost";` and `proxy_set_header X-Forwarded-Prefix /app;`
   #        More here https://github.com/dgtlmoon/changedetection.io/wiki/Running-changedetection.io-behind-a-reverse-proxy-sub-directory
   #      - USE_X_SETTINGS=1
+  #
+  #        Hides the `Referer` header so that monitored websites can't see the changedetection.io hostname.
+  #      - HIDE_REFERER=true
 
       # Comment out ports: when using behind a reverse proxy , enable networks: etc.
       ports:
@@ -73,6 +78,17 @@ services:
 #        hostname: playwright-chrome
 #        image: browserless/chrome
 #        restart: unless-stopped
+#        environment:
+#            - SCREEN_WIDTH=1920
+#            - SCREEN_HEIGHT=1024
+#            - SCREEN_DEPTH=16
+#            - ENABLE_DEBUGGER=false
+#            - PREBOOT_CHROME=true
+#            - CONNECTION_TIMEOUT=300000
+#            - MAX_CONCURRENT_SESSIONS=10
+#            - CHROME_REFRESH_TIME=600000
+#            - DEFAULT_BLOCK_ADS=true
+#            - DEFAULT_STEALTH=true
 
 volumes:
   changedetection-data:

requirements.txt

@@ -1,31 +1,36 @@
-flask~= 2.0
+flask~=2.0
 flask_wtf
 eventlet>=0.31.0
 validators
-timeago ~=1.0
-inscriptis ~= 2.2
-feedgen ~= 0.9
-flask-login ~= 0.5
+timeago~=1.0
+inscriptis~=2.2
+feedgen~=0.9
+flask-login~=0.5
 flask_restful
 pytz
 
 # Set these versions together to avoid a RequestsDependencyWarning
-requests[socks] ~= 2.26
-urllib3 > 1.26
-chardet > 2.3.0
+# >= 2.26 also adds Brotli support if brotli is installed
+brotli~=1.0
+requests[socks] ~=2.28
 
-wtforms ~= 3.0
-jsonpath-ng ~= 1.5.3
+urllib3>1.26
+chardet>2.3.0
+
+wtforms~=3.0
+jsonpath-ng~=1.5.3
+
+# jq not available on Windows so must be installed manually
 
 # Notification library
-apprise ~= 0.9.9
+apprise~=1.1.0
 
 # apprise mqtt https://github.com/dgtlmoon/changedetection.io/issues/315
 paho-mqtt
 
 # Pinned version of cryptography otherwise
 # ERROR: Could not build wheels for cryptography which use PEP 517 and cannot be installed directly
-cryptography ~= 3.4
+cryptography~=3.4
 
 # Used for CSS filtering
 bs4
@@ -34,11 +39,17 @@ bs4
 lxml
 
 # 3.141 was missing socksVersion, 3.150 was not in pypi, so we try 4.1.0
-selenium ~= 4.1.0
+selenium~=4.1.0
 
 # https://stackoverflow.com/questions/71652965/importerror-cannot-import-name-safe-str-cmp-from-werkzeug-security/71653849#71653849
 # ImportError: cannot import name 'safe_str_cmp' from 'werkzeug.security'
 # need to revisit flask login versions
-werkzeug ~= 2.0.0
+werkzeug~=2.0.0
+
+# Templating, so far just in the URLs but in the future can be for the notifications also
+jinja2~=3.1
+jinja2-time
+
+playwright~=1.26; python_version >= "3.8" and "arm" not in platform_machine and "aarch" not in platform_machine
+
 
-# playwright is installed at Dockerfile build time because it's not available on all platforms