feat: add proxies (#39)

.github/workflows/docker-image.yml

@@ -1,4 +1,6 @@
 name: ci
+requires:
+  - unit-tests
 on:
   push:
     branches: ["master"]

.github/workflows/unit-tests.yml

@@ -0,0 +1,25 @@
+name: Unit Tests
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  unit-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install pdm
+        run: pip install pdm
+
+      - name: Install project dependencies
+        run: pdm install
+
+      - name: Run tests
+        run: PYTHONPATH=. pdm run pytest api/backend/tests

api/backend/models.py

@@ -23,8 +23,9 @@ class CapturedElement(pydantic.BaseModel):
 
 
 class JobOptions(pydantic.BaseModel):
-    multi_page_scrape: bool
-    custom_headers: Optional[dict[str, Any]]
+    multi_page_scrape: bool = False
+    custom_headers: Optional[dict[str, Any]] = {}
+    proxies: Optional[list[str]] = []
 
 
 class RetrieveScrapeJobs(pydantic.BaseModel):

api/backend/routers/job_router.py

@@ -5,7 +5,6 @@ from io import StringIO
 import csv
 import logging
 import random
-from typing import Optional
 
 # PDM
 from fastapi import Depends, APIRouter
@@ -27,7 +26,7 @@ from api.backend.models import (
     Job,
 )
 from api.backend.schemas import User
-from api.backend.auth.auth_utils import get_current_user, EMPTY_USER
+from api.backend.auth.auth_utils import get_current_user
 from api.backend.utils import clean_text
 
 LOG = logging.getLogger(__name__)

api/backend/scraping.py

@@ -1,6 +1,7 @@
 import logging
 from typing import Any, Optional
 import time
+import random
 
 from bs4 import BeautifulSoup
 from lxml import etree
@@ -12,7 +13,6 @@ from selenium.webdriver.common.by import By
 from selenium.webdriver.support.ui import WebDriverWait
 from selenium.webdriver.chrome.options import Options as ChromeOptions
 from urllib.parse import urlparse, urljoin
-
 from api.backend.models import Element, CapturedElement
 
 LOG = logging.getLogger(__name__)
@@ -60,7 +60,7 @@ def interceptor(headers: dict[str, Any]):
     return _interceptor
 
 
-def create_driver():
+def create_driver(proxies: Optional[list[str]] = []):
     ua = UserAgent()
     chrome_options = ChromeOptions()
     chrome_options.add_argument("--headless")
@@ -68,7 +68,23 @@ def create_driver():
     chrome_options.add_argument("--disable-dev-shm-usage")
     chrome_options.add_argument(f"user-agent={ua.random}")
 
-    return webdriver.Chrome(options=chrome_options)
+    sw_options = {}
+    if proxies:
+        selected_proxy = proxies[random.randint(0, len(proxies) - 1)]
+        LOG.info(f"Using proxy: {selected_proxy}")
+
+        sw_options = {
+            "proxy": {
+                "https": f"https://{selected_proxy}",
+                "http": f"http://{selected_proxy}",
+            }
+        }
+
+    driver = webdriver.Chrome(
+        options=chrome_options,
+        seleniumwire_options=sw_options,
+    )
+    return driver
 
 
 async def make_site_request(
@@ -78,13 +94,14 @@ async def make_site_request(
     visited_urls: set[str] = set(),
     pages: set[tuple[str, str]] = set(),
     original_url: str = "",
+    proxies: Optional[list[str]] = [],
 ) -> None:
     """Make basic `GET` request to site using Selenium."""
     # Check if URL has already been visited
     if url in visited_urls:
         return
 
-    driver = create_driver()
+    driver = create_driver(proxies)
     driver.implicitly_wait(10)
 
     if headers:
@@ -93,6 +110,7 @@ async def make_site_request(
     try:
         LOG.info(f"Visiting URL: {url}")
         driver.get(url)
+
         final_url = driver.current_url
         visited_urls.add(url)
         visited_urls.add(final_url)
@@ -173,6 +191,7 @@ async def scrape(
     xpaths: list[Element],
     headers: Optional[dict[str, Any]],
     multi_page_scrape: bool = False,
+    proxies: Optional[list[str]] = [],
 ):
     visited_urls: set[str] = set()
     pages: set[tuple[str, str]] = set()
@@ -184,6 +203,7 @@ async def scrape(
         visited_urls=visited_urls,
         pages=pages,
         original_url=url,
+        proxies=proxies,
     )
 
     elements: list[dict[str, dict[str, list[CapturedElement]]]] = list()

api/backend/tests/factories/job_factory.py

@@ -5,12 +5,14 @@ from faker import Faker
 fake = Faker()
 
 
-def create_job():
+def create_job(
+    job_options: JobOptions = JobOptions(multi_page_scrape=False, custom_headers={})
+):
     return Job(
         id=uuid.uuid4().hex,
         url="https://example.com",
         elements=[Element(name="test", xpath="xpath")],
-        job_options=JobOptions(multi_page_scrape=False, custom_headers={}),
+        job_options=job_options,
     )
 
 

api/backend/tests/job/test_download_job.py

@@ -9,12 +9,18 @@ client = TestClient(app)
 
 mocked_job = create_completed_job().model_dump()
 mock_results = [mocked_job]
+mocked_random_int = 123456
 
 
 @pytest.mark.asyncio
-@patch("api.backend.app.query")
-async def test_download(mock_query: AsyncMock):
+@patch("api.backend.routers.job_router.query")
+@patch("api.backend.routers.job_router.random.randint")
+async def test_download(mock_randint: AsyncMock, mock_query: AsyncMock):
+    # Ensure the mock returns immediately
     mock_query.return_value = mock_results
+    mock_randint.return_value = mocked_random_int
+
+    # Create a DownloadJob instance
     download_job = DownloadJob(ids=[mocked_job["id"]])
 
     # Make a POST request to the /download endpoint
@@ -26,5 +32,9 @@ async def test_download(mock_query: AsyncMock):
 
     # Check the content of the CSV
     csv_content = response.content.decode("utf-8")
-    expected_csv = f"id,url,element_name,xpath,text,user,time_created\r\n{mocked_job['id']},https://example.com,element_name,//div,example,{mocked_job['user']},{mocked_job['time_created']}\r\n"
+    expected_csv = (
+        f'"id","url","element_name","xpath","text","user","time_created"\r\n'
+        f'"{mocked_job["id"]}-{mocked_random_int}","https://example.com","element_name","//div","example",'
+        f'"{mocked_job["user"]}","{mocked_job["time_created"]}"\r\n'
+    )
     assert csv_content == expected_csv

api/backend/tests/scraping/test_scraping.py

@@ -0,0 +1,33 @@
+import pytest
+from unittest.mock import AsyncMock, patch, MagicMock
+from api.backend.tests.factories.job_factory import create_job
+from api.backend.models import JobOptions
+from api.backend.scraping import create_driver
+
+
+mocked_job = create_job(
+    job_options=JobOptions(
+        multi_page_scrape=False, custom_headers={}, proxies=["127.0.0.1:8080"]
+    )
+).model_dump()
+
+
+@pytest.mark.asyncio
+@patch("seleniumwire.webdriver.Chrome.get")
+async def test_proxy(mock_get: AsyncMock):
+    # Mock the response of the requests.get call
+    mock_response = MagicMock()
+    mock_get.return_value = mock_response
+
+    driver = create_driver(proxies=["127.0.0.1:8080"])
+    assert driver is not None
+
+    # Simulate a request
+    driver.get("http://example.com")
+    response = driver.last_request
+
+    # Check if the proxy header is set correctly
+    if response:
+        assert response.headers["Proxy"] == "127.0.0.1:8080"
+
+    driver.quit()

api/backend/worker/job_worker.py

@@ -23,6 +23,7 @@ async def process_job():
                 [Element(**j) for j in job["elements"]],
                 job["job_options"]["custom_headers"],
                 job["job_options"]["multi_page_scrape"],
+                job["job_options"]["proxies"],
             )
             LOG.info(
                 f"Scraped result for url: {job['url']}, with elements: {job['elements']}\n{scraped}"

docker-compose.dev.yml

@@ -19,4 +19,4 @@ services:
     ports:
       - "8000:8000"
     volumes:
-      - "$PWD/api:/project/app/api"
+      - "$PWD/api:/project/api"

src/components/submit/job-submitter/job-submitter-options/job-submitter-options.tsx

@@ -1,13 +1,14 @@
+import { RawJobOptions } from "@/types/job";
 import { Box, FormControlLabel, Checkbox, TextField } from "@mui/material";
 import { Dispatch, SetStateAction } from "react";
 
-import { JobOptions } from "@/types/job";
-
 export type JobSubmitterOptionsProps = {
-  jobOptions: JobOptions;
-  setJobOptions: Dispatch<SetStateAction<JobOptions>>;
+  jobOptions: RawJobOptions;
+  setJobOptions: Dispatch<SetStateAction<RawJobOptions>>;
   customJSONSelected: boolean;
   setCustomJSONSelected: Dispatch<SetStateAction<boolean>>;
+  handleSelectProxies: () => void;
+  proxiesSelected: boolean;
 };
 
 export const JobSubmitterOptions = ({
@@ -15,24 +16,69 @@ export const JobSubmitterOptions = ({
   setJobOptions,
   customJSONSelected,
   setCustomJSONSelected,
+  handleSelectProxies,
+  proxiesSelected,
 }: JobSubmitterOptionsProps) => {
+  const handleMultiPageScrapeChange = () => {
+    setJobOptions((prevJobOptions) => ({
+      ...prevJobOptions,
+      multi_page_scrape: !prevJobOptions.multi_page_scrape,
+    }));
+  };
+
+  const handleProxiesChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    setJobOptions((prevJobOptions) => ({
+      ...prevJobOptions,
+      proxies: e.target.value,
+    }));
+  };
+
+  const handleCustomHeadersChange = (
+    e: React.ChangeEvent<HTMLInputElement>
+  ) => {
+    setJobOptions((prevJobOptions) => ({
+      ...prevJobOptions,
+      custom_headers: e.target.value,
+    }));
+  };
+
   return (
     <Box bgcolor="background.paper" className="flex flex-col mb-2 rounded-md">
       <div id="options" className="p-2 flex flex-row space-x-2">
         <FormControlLabel
           label="Multi-Page Scrape"
+          className="mr-0"
           control={
             <Checkbox
               checked={jobOptions.multi_page_scrape}
-              onChange={() =>
-                setJobOptions((prevJobOptions) => ({
-                  ...prevJobOptions,
-                  multi_page_scrape: !prevJobOptions.multi_page_scrape,
-                }))
-              }
+              onChange={handleMultiPageScrapeChange}
             />
           }
         ></FormControlLabel>
+        <FormControlLabel
+          label="Proxies"
+          control={
+            <Checkbox
+              checked={proxiesSelected}
+              onChange={handleSelectProxies}
+            />
+          }
+        ></FormControlLabel>
+        {proxiesSelected ? (
+          <div id="proxies">
+            <TextField
+              InputLabelProps={{ shrink: false }}
+              fullWidth
+              multiline={false}
+              variant="outlined"
+              value={jobOptions.proxies || ""}
+              onChange={handleProxiesChange}
+              inputProps={{
+                style: { whiteSpace: "nowrap", overflowX: "auto" },
+              }}
+            />
+          </div>
+        ) : null}
         <FormControlLabel
           label="Custom Headers (JSON)"
           control={
@@ -58,14 +104,8 @@ export const JobSubmitterOptions = ({
             minRows={4}
             variant="outlined"
             value={jobOptions.custom_headers || ""}
-            onChange={(e) =>
-              setJobOptions((prevJobOptions) => ({
-                ...prevJobOptions,
-                custom_headers: e.target.value,
-              }))
-            }
+            onChange={handleCustomHeadersChange}
             style={{ maxHeight: "20vh", overflow: "auto" }}
-            className="mt-2"
           />
         </div>
       ) : null}

src/components/submit/job-submitter/job-submitter.tsx

@@ -4,11 +4,12 @@ import React, { useEffect, useState, Dispatch } from "react";
 import { Element } from "@/types";
 import { useAuth } from "@/contexts/AuthContext";
 import { useRouter } from "next/router";
-import { Constants } from "@/lib";
-
+import { RawJobOptions } from "@/types/job";
+import { parseJobOptions, validateURL } from "@/lib";
 import { JobSubmitterHeader } from "./job-submitter-header";
 import { JobSubmitterInput } from "./job-submitter-input";
 import { JobSubmitterOptions } from "./job-submitter-options";
+import { ApiService } from "@/services";
 
 interface StateProps {
   submittedURL: string;
@@ -25,22 +26,20 @@ interface Props {
   stateProps: StateProps;
 }
 
-interface JobOptions {
-  multi_page_scrape: boolean;
-  custom_headers: null | string;
-}
+const initialJobOptions: RawJobOptions = {
+  multi_page_scrape: false,
+  custom_headers: null,
+  proxies: null,
+};
 
 export const JobSubmitter = ({ stateProps }: Props) => {
   const { user } = useAuth();
   const router = useRouter();
-
   const { job_options } = router.query;
 
   const {
     submittedURL,
-    setSubmittedURL,
     rows,
-    isValidURL,
     setIsValidUrl,
     setSnackbarMessage,
     setSnackbarOpen,
@@ -49,22 +48,16 @@ export const JobSubmitter = ({ stateProps }: Props) => {
 
   const [urlError, setUrlError] = useState<string | null>(null);
   const [loading, setLoading] = useState<boolean>(false);
-  const [jobOptions, setJobOptions] = useState<JobOptions>({
-    multi_page_scrape: false,
-    custom_headers: null,
-  });
+  const [jobOptions, setJobOptions] =
+    useState<RawJobOptions>(initialJobOptions);
   const [customJSONSelected, setCustomJSONSelected] = useState<boolean>(false);
+  const [proxiesSelected, setProxiesSelected] = useState<boolean>(false);
 
-  function validateURL(url: string): boolean {
-    try {
-      new URL(url);
-      return true;
-    } catch (_) {
-      return false;
-    }
-  }
+  const handleSelectProxies = () => {
+    setProxiesSelected(!proxiesSelected);
+  };
 
-  const handleSubmit = () => {
+  const handleSubmit = async () => {
     if (!validateURL(submittedURL)) {
       setIsValidUrl(false);
       setUrlError("Please enter a valid URL.");
@@ -76,6 +69,7 @@ export const JobSubmitter = ({ stateProps }: Props) => {
     setLoading(true);
 
     let customHeaders;
+
     try {
       customHeaders = jobOptions.custom_headers
         ? JSON.parse(jobOptions.custom_headers)
@@ -88,21 +82,14 @@ export const JobSubmitter = ({ stateProps }: Props) => {
       return;
     }
 
-    fetch(`${Constants.DOMAIN}/api/submit-scrape-job`, {
-      method: "POST",
-      headers: { "content-type": "application/json" },
-      body: JSON.stringify({
-        url: submittedURL,
-        elements: rows,
-        user: user?.email,
-        time_created: new Date().toISOString(),
-        job_options: {
-          ...jobOptions,
-          custom_headers: customHeaders,
-        },
-      }),
-    })
-      .then((response) => {
+    await ApiService.submitJob(
+      submittedURL,
+      rows,
+      user,
+      jobOptions,
+      customHeaders
+    )
+      .then(async (response) => {
         if (!response.ok) {
           return response.json().then((error) => {
             throw new Error(error.error);
@@ -126,26 +113,15 @@ export const JobSubmitter = ({ stateProps }: Props) => {
       .finally(() => setLoading(false));
   };
 
+  // Parse the job options from the query string
   useEffect(() => {
     if (job_options) {
-      const jsonOptions = JSON.parse(job_options as string);
-      const newJobOptions: JobOptions = {
-        multi_page_scrape: false,
-        custom_headers: null,
-      };
-
-      if (
-        jsonOptions.custom_headers &&
-        Object.keys(jsonOptions.custom_headers).length
-      ) {
-        setCustomJSONSelected(true);
-        newJobOptions.custom_headers = JSON.stringify(
-          jsonOptions.custom_headers
-        );
-      }
-
-      newJobOptions.multi_page_scrape = jsonOptions.multi_page_scrape;
-      setJobOptions(newJobOptions);
+      parseJobOptions(
+        job_options as string,
+        setCustomJSONSelected,
+        setProxiesSelected,
+        setJobOptions
+      );
     }
   }, [job_options]);
 
@@ -165,6 +141,8 @@ export const JobSubmitter = ({ stateProps }: Props) => {
           setJobOptions={setJobOptions}
           customJSONSelected={customJSONSelected}
           setCustomJSONSelected={setCustomJSONSelected}
+          handleSelectProxies={handleSelectProxies}
+          proxiesSelected={proxiesSelected}
         />
       </div>
     </>

src/lib/helpers/index.ts

@@ -0,0 +1,2 @@
+export * from "./parse-job-options";
+export * from "./validate-url";

src/lib/helpers/parse-job-options.ts

@@ -0,0 +1,36 @@
+import { Dispatch, SetStateAction } from "react";
+
+import { RawJobOptions } from "@/types";
+
+export const parseJobOptions = (
+  job_options: string,
+  setCustomJSONSelected: Dispatch<SetStateAction<boolean>>,
+  setProxiesSelected: Dispatch<SetStateAction<boolean>>,
+  setJobOptions: Dispatch<SetStateAction<RawJobOptions>>
+) => {
+  if (job_options) {
+    const jsonOptions = JSON.parse(job_options as string);
+    const newJobOptions: RawJobOptions = {
+      multi_page_scrape: false,
+      custom_headers: null,
+      proxies: null,
+    };
+
+    if (
+      jsonOptions.custom_headers &&
+      Object.keys(jsonOptions.custom_headers).length
+    ) {
+      setCustomJSONSelected(true);
+      newJobOptions.custom_headers = JSON.stringify(jsonOptions.custom_headers);
+    }
+
+    newJobOptions.multi_page_scrape = jsonOptions.multi_page_scrape;
+
+    if (jsonOptions.proxies) {
+      setProxiesSelected(true);
+      newJobOptions.proxies = jsonOptions.proxies.join(",");
+    }
+
+    setJobOptions(newJobOptions);
+  }
+};

src/lib/helpers/validate-url.ts

@@ -0,0 +1,8 @@
+export function validateURL(url: string): boolean {
+  try {
+    new URL(url);
+    return true;
+  } catch (_) {
+    return false;
+  }
+}

src/lib/index.ts

@@ -1,2 +1,3 @@
 export * from "./constants";
 export * from "./utils";
+export * from "./helpers";

src/services/api-service/api-service.ts

@@ -0,0 +1,5 @@
+import * as functions from "./functions";
+
+export const ApiService = {
+  ...functions,
+};

src/services/api-service/functions/index.ts

@@ -0,0 +1 @@
+export * from "./submit-job";

src/services/api-service/functions/submit-job.ts

@@ -0,0 +1,25 @@
+import { Constants } from "@/lib";
+
+export const submitJob = async (
+  submittedURL: string,
+  rows: any[],
+  user: any,
+  jobOptions: any,
+  customHeaders: any
+) => {
+  return await fetch(`${Constants.DOMAIN}/api/submit-scrape-job`, {
+    method: "POST",
+    headers: { "content-type": "application/json" },
+    body: JSON.stringify({
+      url: submittedURL,
+      elements: rows,
+      user: user?.email,
+      time_created: new Date().toISOString(),
+      job_options: {
+        ...jobOptions,
+        custom_headers: customHeaders,
+        proxies: jobOptions.proxies ? jobOptions.proxies.split(",") : [],
+      },
+    }),
+  });
+};

src/services/api-service/index.ts

@@ -0,0 +1 @@
+export * from "./api-service";

src/services/index.ts

@@ -0,0 +1 @@
+export * from "./api-service";

src/types/job.ts

@@ -15,4 +15,11 @@ export interface Job {
 export type JobOptions = {
   multi_page_scrape: boolean;
   custom_headers: null | string;
+  proxies: string[];
+};
+
+export type RawJobOptions = {
+  multi_page_scrape: boolean;
+  custom_headers: string | null;
+  proxies: string | null;
 };