Proxy 18

Enter the settings using the gear icon (home screen) and click on it. Under "Wireless Networks", click on "Wi-Fi" and then click on "WiredSSID" and select "Change Network". Check the "Advanced" checkbox, and then select "Manual" for the proxy server. Click "Save" and close the settings.

The main scenarios for using a proxy server: bypassing blocking, hiding the real IP, protection of confidential data when connecting to public WiFi access points, interaction with blocked applications, connection to closed portals, forums (which operate only in one country, region).

Proper parsing in C# often involves using libraries that provide robust and efficient parsing capabilities. Here are examples of parsing different types of data using standard C# libraries and techniques:

Parsing JSON with Newtonsoft.Json:

Ensure you have the Newtonsoft.Json NuGet package installed.

using Newtonsoft.Json;

// Example JSON string
string jsonString = "{\"name\": \"John\", \"age\": 25}";

// Deserialize JSON string to an object
var person = JsonConvert.DeserializeObject(jsonString);

// Define the corresponding C# class
public class Person
{
    public string Name { get; set; }
    public int Age { get; set; }
}

Parsing XML with System.Xml:

using System.Xml.Linq;

// Example XML string
string xmlString = "John25";

// Parse XML string
var xmlElement = XElement.Parse(xmlString);

// Access XML elements and attributes
string name = xmlElement.Element("name").Value;
int age = int.Parse(xmlElement.Element("age").Value);

Parsing DateTime from a String:

// Example date string
string dateString = "2022-01-01";

// Parse string to DateTime
DateTime parsedDate;
if (DateTime.TryParse(dateString, out parsedDate))
{
    // Use parsedDate
    Console.WriteLine(parsedDate.ToString("yyyy-MM-dd"));
}
else
{
    Console.WriteLine("Invalid date format");
}

Parsing Integers from a String:

// Example integer string
string numberString = "123";

// Parse string to integer
if (int.TryParse(numberString, out int parsedNumber))
{
    // Use parsedNumber
    Console.WriteLine(parsedNumber);
}
else
{
    Console.WriteLine("Invalid integer format");
}

Parsing CSV Data:

You can use the TextFieldParser class from the Microsoft.VisualBasic.FileIO namespace.

using Microsoft.VisualBasic.FileIO;
using System.IO;

// Example CSV file path
string csvFilePath = "example.csv";

// Parse CSV file
using (TextFieldParser parser = new TextFieldParser(csvFilePath))
{
    parser.TextFieldType = FieldType.Delimited;
    parser.SetDelimiters(",");

    while (!parser.EndOfData)
    {
        // Read current line
        string[] fields = parser.ReadFields();

        // Process fields
        foreach (string field in fields)
        {
            Console.Write(field + " ");
        }
        Console.WriteLine();
    }
}

Always handle exceptions appropriately when parsing, especially when dealing with user input or data from external sources.

To run Firefox with Selenium and connected extensions, you'll need to use the FirefoxDriverService and FirefoxOptions. You can also set the path to the Firefox executable and the path to the extensions' .xpi files using the FirefoxBinary and FirefoxProfile classes. Here's an example of how to do this:

Install the required NuGet packages:

Install-Package OpenQA.Selenium.Firefox.WebDriver -Version 3.141.0
Install-Package OpenQA.Selenium.Support.UI -Version 3.141.0

Create a method to add extensions to the Firefox profile:

using OpenQA.Selenium;
using OpenQA.Selenium.Firefox;
using System.IO;
using System.Linq;

public static IWebDriver CreateFirefoxDriverWithExtensions(string[] extensionPaths)
{
    var firefoxOptions = new FirefoxOptions();
    var firefoxBinary = new FirefoxBinary(Path.GetDirectoryName(FirefoxDriverService.DefaultServicePath));
    var firefoxProfile = new FirefoxProfile();

    // Add extensions to the Firefox profile
    foreach (var extensionPath in extensionPaths)
    {
        var extensionFile = new FileInfo(extensionPath);
        if (extensionFile.Exists)
        {
            firefoxProfile.AddExtension(extensionPath);
        }
    }

    firefoxOptions.BinaryLocation = firefoxBinary.Path;
    firefoxOptions.Profile = firefoxProfile;

    // Start the FirefoxDriverService with the specified Firefox binary
    var driverService = FirefoxDriverService.CreateDefaultService(firefoxBinary.Path, FirefoxDriverService.DefaultPort);
    driverService.EnableVerboseLogging = true;

    // Create the FirefoxDriver with the specified options
    var driver = new FirefoxDriver(driverService, firefoxOptions);

    return driver;
}

Use the CreateFirefoxDriverWithExtensions method in your test code:

using OpenQA.Selenium;
using System;

namespace SeleniumFirefoxExtensionsExample
{
    class Program
    {
        static void Main(string[] args)
        {
            // Paths to the extensions' .xpi files
            string[] extensionPaths = new[]
            {
                @"path\to\extension1.xpi",
                @"path\to\extension2.xpi"
            };

            // Create the FirefoxDriver with connected extensions
            using (var driver = CreateFirefoxDriverWithExtensions(extensionPaths))
            {
                // Set up the WebDriver
                driver.Manage().Window.Maximize();

                // Navigate to the target web page
                driver.Navigate().GoToUrl("https://www.example.com");

                // Perform any additional actions as needed

                // Close the browser
                driver.Quit();
            }
        }
    }
}

In this example, we first create a method called CreateFirefoxDriverWithExtensions that takes an array of extension paths as input. Inside the method, we set up the FirefoxOptions, FirefoxBinary, and FirefoxProfile to include the specified extensions. Then, we start the FirefoxDriverService with the specified Firefox binary and create the FirefoxDriver with the specified options.

In the test code, we call the CreateFirefoxDriverWithExtensions method with the paths to the extensions' .xpi files and use the returned IWebDriver instance to interact with the browser.

Remember to replace "path\to\extension1.xpi" and "path\to\extension2.xpi" with the actual paths to the extensions' .xpi files you want to connect.

To optimize the performance of Selenium with Chrome and Chromedriver, you can consider several strategies:

Latest Versions:
Ensure that you are using the latest version of Chrome and Chromedriver. They are frequently updated to include performance improvements and bug fixes.

Chromedriver Version Compatibility:
Make sure that the version of Chromedriver you are using is compatible with the version of Chrome installed on your machine. Mismatched versions may lead to unexpected behavior.

Headless Mode:
If you don't need to see the browser window during automation, consider running Chrome in headless mode. Headless mode can significantly improve the speed of browser automation.

chrome_options.add_argument('--headless')

Chrome Options:
Experiment with different Chrome options to see how they affect performance. For example, you can set options related to GPU usage, image loading, and more.

chrome_options.add_argument('--disable-gpu')
chrome_options.add_argument('--blink-settings=imagesEnabled=false')

Page Loading Strategy:
Adjust the page loading strategy. For example, you can set pageLoadStrategy to 'eager' or 'none' if it fits your use case.

chrome_options.add_argument('--pageLoadStrategy=eager')

Timeouts:
Adjust timeouts appropriately. For example, setting script timeouts or implicit waits can help to avoid unnecessary waiting times.

driver.set_script_timeout(10)
driver.implicitly_wait(5)

Parallel Execution:
Consider parallel execution of tests. Running tests in parallel can significantly reduce overall execution time.

Browser Window Size:
Set a specific window size to avoid unnecessary rendering.

chrome_options.add_argument('window-size=1920x1080')

Disable Extensions:
Disable unnecessary Chrome extensions during testing.

chrome_options.add_argument('--disable-extensions')

Logging:
Enable logging to identify any issues or bottlenecks.

service_args = ['--verbose', '--log-path=/path/to/chromedriver.log']
service = ChromeService(executable_path='/path/to/chromedriver', service_args=service_args)