Aria2 Proxy

To quickly scrape a large number of sites using Node.js, you can leverage asynchronous programming and utilize libraries like axios for making HTTP requests and cheerio for parsing HTML. Additionally, you may consider using the p-queue library to manage the concurrency and control the rate of requests. Here's a basic example to get you started

Install Required Packages:

npm install axios cheerio p-queue

Create a Scraper Script:

const axios = require('axios');
const cheerio = require('cheerio');
const PQueue = require('p-queue');

// List of sites to scrape
const sites = [
  'https://example1.com',
  'https://example2.com',
  // Add more URLs as needed
];

// Set the concurrency level (adjust as needed)
const concurrency = 5;

// Initialize a queue with concurrency control
const queue = new PQueue({ concurrency });

// Function to scrape a single site
async function scrapeSite(url) {
  try {
    const response = await axios.get(url);
    const $ = cheerio.load(response.data);

    // Use Cheerio to parse and extract data
    const title = $('title').text();
    console.log(`Scraped ${url} - Title: ${title}`);
  } catch (error) {
    console.error(`Error scraping ${url}: ${error.message}`);
  }
}

// Enqueue scraping tasks for each site
sites.forEach((site) => {
  queue.add(() => scrapeSite(site));
});

// Wait for all tasks to complete
queue.onIdle().then(() => {
  console.log('All scraping tasks completed.');
});

This example uses axios for making HTTP requests, cheerio for HTML parsing, and p-queue for controlling concurrency.

Run the Script:

node your_scraper_script.js

Adjust the sites array with the URLs you want to scrape.

This example uses a simple queue system to control the number of concurrent requests, preventing potential issues with rate limiting or overwhelming the target websites. However, be mindful of the websites' terms of service and robots.txt rules to avoid scraping restrictions.

If Selenium is not loading the specified browser profile, there are several possible reasons and solutions to investigate. Here are some steps you can take to troubleshoot and resolve the issue:

1. Check Profile Path:

   • Verify that the path to the specified browser profile is correct. Provide the absolute path to the profile directory when setting up the browser profile.

2. Ensure Browser Compatibility:

   • Make sure that the version of Selenium WebDriver you are using is compatible with the version of the browser. Compatibility issues can sometimes cause profile-related problems.

3. Use Browser-Specific Options:

   • Different browsers may have specific options for setting up a profile. For example, in Chrome, you can use user-data-dir to specify the user data directory (profile).

from selenium import webdriver

chrome_options = webdriver.ChromeOptions()
chrome_options.add_argument('--user-data-dir=/path/to/profile')

driver = webdriver.Chrome(options=chrome_options)

• Profile Settings Conflict:

  • Check if there are conflicting settings in the specified profile that might interfere with Selenium. Manually inspect the profile directory to ensure it is in a clean state.

• Clear Browser Cache and Cookies:

  • If you are using an existing profile, clearing the browser cache and cookies might help. Create a clean profile or clear the existing one before running your Selenium script.

• Profile Locking:

  • Ensure that the specified profile is not locked by another instance of the browser. Make sure that no other browser instances are using the same profile concurrently.

• Browser Version Mismatch:

  • If you have recently updated your browser, there might be compatibility issues with the existing profile. Create a new profile or update the existing one to match the browser version.

• Handle Security Restrictions:

  • Some browsers, especially when used in automated testing, may impose security restrictions on loading specific profiles. Review browser settings or consider adjusting security settings to allow profile loading.

• Check for Selenium Updates:

  • Ensure that you are using the latest version of the Selenium WebDriver library. Updates may include fixes for profile-related issues.

• Logging and Debugging:

  • Enable browser and WebDriver logs to capture any error messages or warnings related to the profile. This can provide insights into what might be going wrong.

• Use Browser-Specific Drivers:

  • If you are using a specific browser (e.g., Chrome, Firefox), make sure you are using the appropriate browser-specific WebDriver executable (ChromeDriver, GeckoDriver).

If your Selenium ChromeDriver with Python has stopped working, there could be various reasons behind it. Here are some common troubleshooting steps to identify and resolve the issue:

1. Check ChromeDriver Version:

   • Ensure that the version of ChromeDriver you are using is compatible with the version of Google Chrome installed on your machine. Download the latest ChromeDriver version from the official website if needed.

2. Update Chrome Browser:

   • Make sure your Google Chrome browser is up to date. An incompatible ChromeDriver version may not work correctly with an outdated browser.

3. Update Selenium WebDriver:

   • Ensure that you have the latest version of the Selenium WebDriver library installed. You can update it using:

pip install --upgrade selenium

• Check Chrome Browser Version:

  • Verify the version of your Google Chrome browser. You can find this information in the Chrome browser by going to "Settings -> About Chrome." Ensure that the ChromeDriver version matches this version.

• Provide ChromeDriver Path Explicitly:

  • Specify the path to ChromeDriver explicitly when creating a WebDriver instance. For example:

from selenium import webdriver

driver = webdriver.Chrome(executable_path='/path/to/chromedriver')

• • Replace '/path/to/chromedriver' with the actual path to your ChromeDriver executable.

• Check for Errors and Logs:

  • Examine any error messages or logs generated during the execution of your Selenium script. These messages can provide clues about what might be going wrong.

• Firewall/Antivirus:

  • Check if your firewall or antivirus software is blocking ChromeDriver. Temporarily disable these to test if they are causing the issue.

• Headless Mode:

  • If you are running ChromeDriver in headless mode, try running it without headless mode to see if the issue persists.

• Temporary Directory Access:

  • Ensure that the process running your Selenium script has the necessary permissions to write to the temporary directory. ChromeDriver may need to write to the system's temporary directory during execution.

• Try a Different Browser:

  • If the issue persists with Chrome, try using a different browser (e.g., Firefox) to see if the problem is specific to Chrome or if it's a more general WebDriver issue.

• Reinstall ChromeDriver:

  • Consider reinstalling ChromeDriver by downloading the latest version and replacing the existing executable.

• Check for System Updates:

  • Ensure that your operating system is up to date. Some issues may be resolved by updating the underlying system libraries.

• Check Browser Extensions:

  • Disable any browser extensions or plugins that might interfere with the WebDriver.

• • Replace '/path/to/chromedriver' with the actual path to your ChromeDriver executable.

• Check for Errors and Logs:

  • Examine any error messages or logs generated during the execution of your Selenium script. These messages can provide clues about what might be going wrong.

• Firewall/Antivirus:

  • Check if your firewall or antivirus software is blocking ChromeDriver. Temporarily disable these to test if they are causing the issue.

• Headless Mode:

  • If you are running ChromeDriver in headless mode, try running it without headless mode to see if the issue persists.

• Temporary Directory Access:

  • Ensure that the process running your Selenium script has the necessary permissions to write to the temporary directory. ChromeDriver may need to write to the system's temporary directory during execution.

• Try a Different Browser:

  • If the issue persists with Chrome, try using a different browser (e.g., Firefox) to see if the problem is specific to Chrome or if it's a more general WebDriver issue.

• Reinstall ChromeDriver:

  • Consider reinstalling ChromeDriver by downloading the latest version and replacing the existing executable.

• Check for System Updates:

  • Ensure that your operating system is up to date. Some issues may be resolved by updating the underlying system libraries.

• Check Browser Extensions:

  • Disable any browser extensions or plugins that might interfere with the WebDriver.

Combining Selenium with a Telegram Bot allows you to create an automated system that can interact with web pages and send updates to a Telegram chat. To achieve this, you'll need to follow these steps:

Create a Telegram Bot and get the API token.

Set up a Telegram Bot using the API token.

Use Selenium to interact with the web pages.

Send updates from the Selenium script to the Telegram Bot.

Here's a step-by-step guide:

Create a Telegram Bot and get the API token:

- Start a new chat with the BotFather (@BotFather) on Telegram.

- Send the command /newbot and follow the instructions to create a new bot.

- Note down the bot's username (e.g., YourBotName).

- Send the command /setname YourBotName to set the bot's name.

- Send the command /token to receive the API token. Save the API token securely.

Set up a Telegram Bot using the API token:

- Install a Telegram bot library, such as python-telegram-bot: pip install python-telegram-bot.

- Create a new Python script and import the required libraries:

from telegram.ext import Updater, CommandHandler, MessageHandler, Filters
import logging

logging.basicConfig(format='%(asctime)s - %(name)s - %(levelname)s - %(message)s', level=logging.INFO)

Set up the Telegram Bot with the API token:

API_TOKEN = "your_telegram_bot_api_token"
updater = Updater(API_TOKEN, use_context=True)
dispatcher = updater.dispatcher

Create a function to handle incoming messages:

def echo(update, context):
    context.bot.send_message(chat_id=update.effective_chat.id, text=update.message.text)

Add a command handler and message handler to the dispatcher:

start_cmd = CommandHandler('start', echo)
dispatcher.add_handler(start_cmd)

message_handler = MessageHandler(Filters.text & ~Filters.command, echo)
dispatcher.add_handler(message_handler)

Start the bot:

updater.start_polling()
updater.idle()

Use Selenium to interact with the web pages:

Create a Selenium script to interact with the web pages as needed. For example, you can use the script to scrape data, log in to a website, or perform other actions.

Send updates from the Selenium script to the Telegram Bot:

Modify the echo function in the Telegram Bot script to accept data from the Selenium script and send it as an update. You can pass the data as a string or use other formats like JSON.

Here's an example of sending data as a string:

def echo(update, context):
    data = context.bot.send_message(chat_id=update.effective_chat.id, text="Received data:")
    context.bot.send_message(chat_id=update.effective_chat.id, text=data)

And here's an example of sending data as JSON:

import json

def echo(update, context):
    data = context.bot.send_message(chat_id=update.effective_chat.id, text="Received data:")
    data_json = json.dumps(data)
    context.bot.send_message(chat_id=update.effective_chat.id, text=data_json)

Now, when you run both the Selenium script and the Telegram Bot script simultaneously, the bot will receive updates with the data from the Selenium script and send it to the chat.

Remember to replace "your_telegram_bot_api_token" with your actual API token. Also, ensure that the bot has the necessary permissions to send messages in the chat where you want to receive updates.

On the PC you can use SOCKS5 proxies, for example, through the browser Firefox. There are such a function in the settings, you just need to activate it. The only nuance: the connection speed or ping indicators in this case may be slowed down.