Preliminary Proxy

Parsing PDF files in C++ can be a complex task due to the intricacies of the PDF format. However, you can use third-party libraries to simplify the process. One popular library for PDF parsing in C++ is "Poppler."

Here are the basic steps to parse PDF files using the Poppler library:

1. Install Poppler:

   • On Linux: You can typically install Poppler using the package manager for your distribution (e.g., apt-get install poppler-utils on Ubuntu).
   • On Windows: You can download the Poppler binaries from the official Poppler release page or use package managers like MSYS2 or vcpkg.

2. Use Poppler in C++:

   • Here's a simple example using Poppler in C++ to extract text from a PDF file:

#include 
#include 

int main() {
    // Replace "your_file.pdf" with the path to your PDF file
    QString pdfFilePath = "your_file.pdf";

    // Open the PDF file
    Poppler::Document* document = Poppler::Document::load(pdfFilePath);

    if (document) {
        // Iterate through pages
        for (int i = 0; i < document->numPages(); ++i) {
            Poppler::Page* pdfPage = document->page(i);

            // Extract text from the page
            QString text = pdfPage->text();
            std::cout << text.toStdString() << std::endl;

            delete pdfPage;
        }

        delete document;
    } else {
        std::cerr << "Failed to open the PDF file." << std::endl;
    }

    return 0;
}

Build and Link:

• Make sure to link your C++ program with the Poppler library. For example, using g++ on Linux:

g++ your_program.cpp -o your_program -lpoppler-qt5

4. Run the Program:

   • Execute your compiled program and provide the path to the PDF file as a command-line argument.

Keep in mind that this is a simple example, and Poppler provides more functionalities for extracting various information from PDF files. You might need to adapt the code based on your specific requirements.

Managing extensions in Selenium involves adding, removing, or interacting with browser extensions during your automated testing or web scraping tasks. Selenium provides mechanisms to handle extensions in different browsers. Below are examples for managing extensions in Chrome and Firefox using Selenium.

Chrome

Adding an Extension:

from selenium import webdriver

chrome_options = webdriver.ChromeOptions()
chrome_options.add_extension('/path/to/extension.crx')  # Replace with the path to your extension

driver = webdriver.Chrome(options=chrome_options)

Removing an Extension

Removing an extension is not directly supported in ChromeOptions. Instead, you can manually remove the extension directory after launching the browser.

Firefox

Adding an Extension:

from selenium import webdriver

firefox_options = webdriver.FirefoxOptions()
firefox_options.add_extension('/path/to/extension.xpi')  # Replace with the path to your extension

driver = webdriver.Firefox(options=firefox_options)

Removing an Extension

from selenium import webdriver
import os

firefox_options = webdriver.FirefoxOptions()
firefox_options.add_extension('/path/to/extension.xpi')  # Replace with the path to your extension

driver = webdriver.Firefox(options=firefox_options)

# After performing your tasks, remove the extension
os.remove('/path/to/extension.xpi')  # Replace with the path to your extension

Note:

Replace /path/to/extension.crx and /path/to/extension.xpi with the actual paths to your Chrome extension (CRX) and Firefox extension (XPI) files, respectively.

Ensure that the extension files are valid and compatible with the browser versions you are using.

Managing extensions is browser-specific. Chrome uses CRX files, while Firefox uses XPI files.

Adding extensions using these methods is done during the browser instance creation, so it should be done before calling driver.get().

Removing an extension may require additional steps based on your specific use case, such as removing the extension directory or modifying browser profiles.

Always check the documentation and terms of use for the extensions you are working with to ensure compliance with their licensing and usage terms.

To hide the Chrome browser during Selenium C# tests, you can use the --headless flag when initializing the ChromeDriver. The --headless flag runs Chrome in headless mode, which means it will run in the background without a visible user interface.

Here's an example of how to set up a headless Chrome browser using Selenium C#:

First, install the necessary NuGet packages for Selenium WebDriver and ChromeDriver:

Install-Package OpenQA.Selenium.Chrome
Install-Package OpenQA.Selenium.WebDriver

Then, create a new C# class for your Selenium test, for example, HeadlessChromeExample.cs.

Write the test code:

using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;
using System;

namespace HeadlessChromeExample
{
    class Program
    {
        static void Main(string[] args)
        {
            // Set the path to the ChromeDriver executable
            string driverPath = "/path/to/chromedriver";

            // Create a new instance of the ChromeDriver with the --headless flag
            IWebDriver driver = new ChromeDriver(driverPath, new ChromeOptions()
            {
                // Set the headless mode to true
                Headless = true
            });

            // Navigate to the webpage
            driver.Navigate().GoToUrl("http://example.com");

            // Perform your test actions here

            // Close the WebDriver instance
            driver.Quit();
        }
    }
}

Run the test:

You can run your test using your preferred C# IDE or by using the command line. If you're using a console application, you can run the test by pressing Ctrl + F5.

This should help you set up a headless Chrome browser using Selenium C# and execute your test without the browser being visible. Make sure to replace "/path/to/chromedriver" with the actual path to your ChromeDriver executable and "http://example.com" with the URL of the webpage you want to test.

In Windows, proxy settings for local connections are made through the "Network and Sharing Center" (from the "Control Panel"). You need to select "Browser Properties", then go to "Connections" and click on "Network Setting". And there you can set either the script or the parameters for the proxy.

Deactivating the proxy on android is a reverse process. To do this, you will need to go back to the previous settings in the browser, if that is where you set the installation parameters. In the item "Change proxy status", namely in the ProxyDroid app, set the "Off" position.