mirror of
https://github.com/dgtlmoon/changedetection.io.git
synced 2025-12-18 14:05:34 +00:00
96 lines
4.9 KiB
Python
96 lines
4.9 KiB
Python
from flask import Blueprint, request, url_for, flash, render_template, redirect
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import time
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from loguru import logger
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from changedetectionio.store import ChangeDetectionStore
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from changedetectionio.auth_decorator import login_optionally_required
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from changedetectionio import html_tools
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def construct_blueprint(datastore: ChangeDetectionStore):
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preview_blueprint = Blueprint('ui_preview', __name__, template_folder="../ui/templates")
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@preview_blueprint.route("/preview/<string:uuid>", methods=['GET'])
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@login_optionally_required
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def preview_page(uuid):
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content = []
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versions = []
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timestamp = None
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# More for testing, possible to return the first/only
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if uuid == 'first':
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uuid = list(datastore.data['watching'].keys()).pop()
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try:
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watch = datastore.data['watching'][uuid]
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except KeyError:
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flash("No history found for the specified link, bad link?", "error")
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return redirect(url_for('watchlist.index'))
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system_uses_webdriver = datastore.data['settings']['application']['fetch_backend'] == 'html_webdriver'
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extra_stylesheets = [url_for('static_content', group='styles', filename='diff.css')]
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is_html_webdriver = False
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if (watch.get('fetch_backend') == 'system' and system_uses_webdriver) or watch.get('fetch_backend') == 'html_webdriver' or watch.get('fetch_backend', '').startswith('extra_browser_'):
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is_html_webdriver = True
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triggered_line_numbers = []
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ignored_line_numbers = []
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blocked_line_numbers = []
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if datastore.data['watching'][uuid].history_n == 0 and (watch.get_error_text() or watch.get_error_snapshot()):
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flash("Preview unavailable - No fetch/check completed or triggers not reached", "error")
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else:
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# So prepare the latest preview or not
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preferred_version = request.args.get('version')
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versions = list(watch.history.keys())
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timestamp = versions[-1]
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if preferred_version and preferred_version in versions:
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timestamp = preferred_version
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try:
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versions = list(watch.history.keys())
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content = watch.get_history_snapshot(timestamp=timestamp)
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triggered_line_numbers = html_tools.strip_ignore_text(content=content,
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wordlist=watch.get('trigger_text'),
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mode='line numbers'
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)
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ignored_line_numbers = html_tools.strip_ignore_text(content=content,
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wordlist=watch.get('ignore_text'),
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mode='line numbers'
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)
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blocked_line_numbers = html_tools.strip_ignore_text(content=content,
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wordlist=watch.get("text_should_not_be_present"),
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mode='line numbers'
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)
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except Exception as e:
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content.append({'line': f"File doesnt exist or unable to read timestamp {timestamp}", 'classes': ''})
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from changedetectionio.pluggy_interface import get_fetcher_capabilities
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capabilities = get_fetcher_capabilities(watch, datastore)
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output = render_template("preview.html",
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capabilities=capabilities,
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content=content,
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current_diff_url=watch['url'],
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current_version=timestamp,
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extra_stylesheets=extra_stylesheets,
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extra_title=f" - Diff - {watch.label} @ {timestamp}",
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highlight_ignored_line_numbers=ignored_line_numbers,
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highlight_triggered_line_numbers=triggered_line_numbers,
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highlight_blocked_line_numbers=blocked_line_numbers,
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history_n=watch.history_n,
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is_html_webdriver=is_html_webdriver,
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last_error=watch['last_error'],
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last_error_screenshot=watch.get_error_snapshot(),
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last_error_text=watch.get_error_text(),
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screenshot=watch.get_screenshot(),
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uuid=uuid,
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versions=versions,
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watch=watch,
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)
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return output
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return preview_blueprint
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