MQTT Proxy

To enable proxies in your MacBook, you need to go to "System Preferences" (from the "Apple" menu), then open "Network", then - specify the type of connection you are using. Then select "Advanced Settings" (can be named as "Advanced"), then click on "Proxy". And then - either set the parameters manually, or specify a configuration file.

If you're working with Spring Boot in Java and need to parse JSON with multiple attachments, you might be dealing with a scenario involving HTTP requests with JSON payload and file attachments. In this case, you can use @RequestPart in your controller method to handle JSON and multipart requests.

Here's a basic example

Create a DTO (Data Transfer Object) class:

public class RequestDto {
    private String jsonData;
    private MultipartFile file1;
    private MultipartFile file2;

    // getters and setters
}

Create a controller with a method to handle the request:

import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestPart;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

@RestController
@RequestMapping("/api")
public class ApiController {

    @PostMapping("/processRequest")
    public ResponseEntity processRequest(@RequestPart("requestDto") RequestDto requestDto,
                                                @RequestPart("file1") MultipartFile file1,
                                                @RequestPart("file2") MultipartFile file2) {
        // Process JSON data in requestDto and handle file attachments
        // ...

        return ResponseEntity.ok("Request processed successfully");
    }
}

3. Send a multipart request with JSON and attachments:

Using tools like Postman or curl, you can send a multipart request. Here's an example using Postman:

• Set the request type to POST.
• Set the URL to http://localhost:8080/api/processRequest.
• Under the "Body" tab, select "form-data".
• Add three key-value pairs:
  • Key: requestDto, Value: {"jsonData": "your_json_data"}
  • Key: file1, Value: select a file
  • Key: file2, Value: select another file

Make sure you have the appropriate dependencies in your project for handling multipart requests. If you're using Maven, you can include the following dependency in your pom.xml:

    org.springframework.boot
    spring-boot-starter-web

Adjust the example based on your specific use case and the structure of your JSON data. The key point is to use @RequestPart to handle both JSON and file attachments in the same request.

To disable WebRTC in Chrome using Selenium ChromeDriver in C#, you can use ChromeOptions to set the necessary command-line arguments. Here's an example:

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

class Program
{
    static void Main()
    {
        ChromeOptions chromeOptions = new ChromeOptions();

        // Disable WebRTC
        chromeOptions.AddArgument("--disable-webrtc");

        // Other options (customize as needed)
        // chromeOptions.AddArgument("--use-fake-device-for-media-stream");
        // chromeOptions.AddArgument("--use-fake-ui-for-media-stream");

        IWebDriver driver = new ChromeDriver(chromeOptions);

        // Your Selenium script...

        driver.Quit();
    }
}

In this example:

--disable-webrtc is added as a command-line argument to disable WebRTC in Chrome.

Additional options related to WebRTC are provided in comments. Uncomment and customize them based on your specific requirements.

Make sure to replace the "Your Selenium script..." comment with the actual logic of your Selenium script.

Connecting to a Selenium Hub via a corporate proxy can be challenging, as the proxy may require authentication or have specific settings that need to be configured. To connect to the Selenium Hub through a corporate proxy, you'll need to configure the proxy settings in your Selenium client and Hub.

Here's a step-by-step guide on how to set up a Selenium Hub and client with corporate proxy settings:

Configure the Selenium Hub:

First, you need to configure the Selenium Hub to use the corporate proxy. You can do this by modifying the Hub's configuration file (usually hub.yml or hub.json) and adding the proxy settings.

For example, if you're using the hub.yml file, add the following configuration:

proxy:
  type: http
  httpProxy: http://username:password@proxy.example.com:port
  nonProxyHosts: localhost, 127.0.0.1, .example.com

Replace username, password, proxy.example.com, and port with the appropriate values for your corporate proxy. The nonProxyHosts setting specifies a list of hosts that should not use the proxy.

Configure the Selenium client:

Next, configure the Selenium client to use the corporate proxy. You can do this by setting the proxy settings in your WebDriver configuration.

For example, in Python with the Chrome WebDriver, you can configure the proxy as follows:

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.proxy import Proxy, ProxyType

proxy = Proxy()
proxy.proxy_type = ProxyType.MANUAL
proxy.http_proxy = "http://username:password@proxy.example.com:port"
proxy.ssl_proxy = "http://username:password@proxy.example.com:port"

chrome_options = Options()
chrome_options.add_argument("--proxy-server=%s" % proxy.proxy)

driver = webdriver.Chrome(options=chrome_options)
driver.get('your_url')

# Rest of your code

driver.quit()

Replace username, password, proxy.example.com, and port with the appropriate values for your corporate proxy.

Start the Selenium Hub and connect the client:

Start the Selenium Hub and connect the client to the Hub using the appropriate configuration settings.

For example, if you're using the hub.yml file, start the Hub with the following command:

selenium-server-standalone jar hub.yml

Connect the client to the Hub using the appropriate configuration settings. For example, in Python, you can connect the client to the Hub as follows:

from selenium import webdriver
from selenium.webdriver.remote.webdriver import WebDriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities

desired_caps = DesiredCapabilities.CHROME
desired_caps['proxy'] = {
    'httpProxy': 'http://username:password@proxy.example.com:port',
    'ftpProxy': 'http://username:password@proxy.example.com:port',
}

driver = WebDriver(desired_caps=desired_caps)
driver.get('your_url')

# Rest of your code

driver.quit()

Replace username, password, proxy.example.com, and port with the appropriate values for your corporate proxy.

By following these steps, you should be able to connect to a Selenium Hub via a corporate proxy and use the Selenium client to interact with webpages.

Telegram is a popular messenger, the activity of which is prohibited in some countries. It is possible to bypass the blocking with the help of anonymous proxy-servers working on the SOCKS5 protocol. They redirect traffic from Telegram to third-party IP addresses from other countries. Proxy servers guarantee the anonymity of correspondence, allow you to create chatbots, promote several accounts simultaneously, which will not be afraid of blocking.