Plantuml Proxy

A proxy is a service that allows access to websites blocked in different countries, while hiding your own IP address. It is a kind of intermediary between the end server and the owner's computer. A VPN provides an encrypted connection to the network, which not only allows you to keep your privacy, hide your IP address, encrypt Internet traffic, but also bypasses firewalls.

Scraping data from a community wall on VK (Vkontakte) using the VK API requires authentication and making requests to the API endpoints. VK provides an official API that you can use to access various data, including posts from community walls.

Here's a general guide on how to scrape posts from a community wall using the VK API:

1. Create a VK App:

   • Go to the VK Developers website and create a VK app.
   • Obtain the "App ID" and "Secure Key" for your app.

2. Authentication:

   • Get an access token to authenticate your requests. You can use the Implicit Flow for user authentication or the Client Credentials Flow for app authentication.

3. Make API Requests:

   • Use the obtained access token to make requests to the VK API. The endpoint for getting wall posts is wall.get.
   • You'll need the community's ID or screen name to get its wall posts.

Here's an example using Python and the requests library:

import requests

# Replace with your VK app details and access token
app_id = 'your_app_id'
secure_key = 'your_secure_key'
access_token = 'your_access_token'

# Replace with the community ID or screen name
community_id = 'your_community_id_or_screen_name'

# API endpoint for getting wall posts
api_url = f'https://api.vk.com/method/wall.get?owner_id=-{community_id}&count=10&access_token={access_token}&v=5.131'

# Make the API request
response = requests.get(api_url)
data = response.json()

# Extract and print the posts
if 'response' in data and 'items' in data['response']:
    posts = data['response']['items']
    for post in posts:
        print(post['text'])
else:
    print('Error fetching wall posts')

Note: Make sure to handle errors and check the VK API documentation for more details on available parameters and responses.

Clicking an AJAX button in Selenium can be a bit tricky, as AJAX buttons often rely on JavaScript to perform the click action instead of using the traditional HTML click event. To click an AJAX button in Selenium, you can follow these steps:

1. Locate the AJAX button element using its unique identifier (e.g., ID, name, CSS selector, or XPath).

2. Use JavaScript to simulate the click action on the button element.

Here's an example using Python with the Selenium WebDriver:

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.action_chains import ActionChains

# Set up the Chrome WebDriver
driver = webdriver.Chrome()

# Navigate to the page containing the AJAX button
driver.get("https://example.com")

# Locate the AJAX button element
button = driver.find_element(By.ID, "ajaxButton")

# Click the AJAX button using JavaScript
driver.execute_script("arguments[0].click();", button)

Alternatively, you can use the ActionChains class to perform a right-click and then a left-click sequence, which can sometimes simulate a button click:

from selenium.webdriver.common.action_chains import ActionChains

# Locate the AJAX button element
button = driver.find_element(By.ID, "ajaxButton")

# Perform a right-click and then a left-click sequence
action = ActionChains(driver)
action.context_click(button).perform()
action.click(button).perform()

Remember to replace "https://example.com" and "ajaxButton" with the actual URL and element identifier of the page and button you're working with.

Keep in mind that these methods may not work for all AJAX buttons, as some buttons may use more complex JavaScript events or require additional steps to be executed before the click action can be performed. In such cases, you may need to inspect the button's JavaScript code and replicate the necessary steps in your Selenium script.

Technically, the ISP cannot block all VPN servers. But it is possible to block some of them. In this case, you can use any other VPN service. But you have to be careful with "free" ones, as they often make money from collecting and selling users' confidential data.

A web proxy is a web application that is installed on a web server. It acts as an intermediary for downloading certain content from various websites. The user gets the opportunity, thanks to the web proxy, to remain anonymous while downloading all kinds of web resources. Web proxies are good for such tasks as speeding up the loading of websites, providing anonymous access to websites, bypassing restrictions and gaining access to closed websites.