Sci-Hub Proxy

It is a service that provides the ability to use a proxy server. It provides connection data (IP address and port number) as well as remote equipment that acts as a "gateway" for transferring traffic.

When parsing RSS feeds and avoiding duplicates, you typically need to maintain a record of previously parsed items and compare new items to this record to ensure that you don't process the same item multiple times. Below is an example using Node.js and the rss-parser library, which simplifies working with RSS feeds.

Install Dependencies

Install the required npm package:

npm install rss-parser

Write the Parsing Script

Create a Node.js script (e.g., parse_rss.js) with the following code:

const Parser = require('rss-parser');
const fs = require('fs');

const parser = new Parser();
const rssFeedUrl = 'https://example.com/rss-feed'; // Replace with the URL of the RSS feed

// Function to load and parse the previously processed items
function loadProcessedItems() {
    try {
        const data = fs.readFileSync('processedItems.json');
        return JSON.parse(data);
    } catch (error) {
        return [];
    }
}

// Function to save the processed items to a file
function saveProcessedItems(processedItems) {
    fs.writeFileSync('processedItems.json', JSON.stringify(processedItems, null, 2));
}

async function parseRSS() {
    const processedItems = loadProcessedItems();
    const feed = await parser.parseURL(rssFeedUrl);

    for (const item of feed.items) {
        // Check if the item has been processed before
        if (!processedItems.includes(item.link)) {
            // Process the new item (replace with your processing logic)
            console.log('New item found:', item.title);

            // Add the item link to the list of processed items
            processedItems.push(item.link);
        }
    }

    // Save the updated list of processed items
    saveProcessedItems(processedItems);
}

// Run the RSS parsing process
parseRSS();

Replace 'https://example.com/rss-feed' with the URL of the RSS feed you want to parse.

Run the Script

Run the script using Node.js:

node parse_rss.js

This script uses the rss-parser library to fetch and parse an RSS feed. It maintains a list of processed item links in a JSON file (processedItems.json). Each time the script runs, it loads the processed items, compares them to the new items in the feed, processes only the new items, and then updates the list of processed items.

In Selenium, you can add headers to your web requests using the webdriver.ChromeOptions class. This is useful when you want to simulate certain HTTP headers in your Selenium-driven browser. Here's an example of how to add headers to Selenium using the Chrome WebDriver:

from selenium import webdriver

# Create ChromeOptions object
chrome_options = webdriver.ChromeOptions()

# Add headers to the options
chrome_options.add_argument("--disable-blink-features=AutomationControlled")  # Example header

# Instantiate the Chrome WebDriver with options
driver = webdriver.Chrome(options=chrome_options)

# Now you can use the driver for your automation tasks
driver.get("https://example.com")

# Close the browser window when done
driver.quit()

In this example, we use the add_argument method of ChromeOptions to add headers. The specific argument --disable-blink-features=AutomationControlled is an example of a header that might be used to mitigate detection mechanisms that check for automation.

You can customize the headers by adding more add_argument calls with the desired headers. Here's an example of adding custom headers:

chrome_options.add_argument("user-agent=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36")
chrome_options.add_argument("accept-language=en-US,en;q=0.9")
# Add more headers as needed

Remember to adapt the headers based on your requirements and the website you are interacting with. The headers you add should mimic those of a regular user to reduce the chances of detection.

Changing the WebRTC (Web Real-Time Communication) value in Selenium involves modifying the browser's configuration options. WebRTC settings are not directly exposed through Selenium WebDriver, so you need to use browser-specific options or preferences.

Below are examples for changing WebRTC settings in Chrome and Firefox using Selenium in Python. Keep in mind that the availability of certain options may vary depending on the browser version, and these examples may need adjustments based on your specific requirements.

from selenium import webdriver
from selenium.webdriver.chrome.options import Options

chrome_options = Options()

# Disable WebRTC
chrome_options.add_argument('--disable-webrtc')

# Other options (customize as needed)
# chrome_options.add_argument('--use-fake-device-for-media-stream')
# chrome_options.add_argument('--use-fake-ui-for-media-stream')

driver = webdriver.Chrome(chrome_options=chrome_options)

# Your Selenium script...

driver.quit()

In this example, --disable-webrtc is used to disable WebRTC. You can explore other Chrome command-line options related to WebRTC here.

Firefox

from selenium import webdriver
from selenium.webdriver.firefox.options import Options

firefox_options = Options()

# Disable WebRTC
firefox_options.set_preference('media.peerconnection.enabled', False)

# Other preferences (customize as needed)
# firefox_options.set_preference('media.navigator.streams.fake', True)
# firefox_options.set_preference('media.navigator.permission.disabled', True)

driver = webdriver.Firefox(firefox_options=firefox_options)

# Your Selenium script...

driver.quit()

In this example, media.peerconnection.enabled is set to False to disable WebRTC in Firefox. Additional preferences can be adjusted based on your needs. You can find more Firefox preferences related to WebRTC here.

Remember that changing browser preferences may have implications on the behavior of your application, and modifying settings like WebRTC should be done responsibly and in accordance with the terms of service of the websites you are interacting with.

In Selenium Python, you can use the send_keys method to simulate typing keys into an input field. To press keys correctly, you can use the Keys enumeration provided by the selenium.webdriver.common.keys module. Here's an example of how to use the send_keys method to press keys in Selenium Python:

Install the required package:

pip install selenium

Create a method to press keys in an input field:

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

def press_keys(driver, locator, keys_to_press):
    element = WebDriverWait(driver, 10).until(EC.visibility_of_element_located(locator))
    element.clear()
    element.send_keys(keys_to_press)
    element.send_keys(Keys.RETURN)

Use the press_keys method in your test code:

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

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

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

# Locate the input field
locator = (By.ID, "username")

# Press keys in the input field
press_keys(driver, locator, "your_username")

# Perform any additional actions as needed

# Close the browser
driver.quit()

In this example, we first create a method called press_keys that takes a driver instance, a locator tuple containing the locator strategy and locator value, and a keys_to_press string containing the keys to press. Inside the method, we use the WebDriverWait class to wait for the element to become visible and then clear the input field, send the keys to press, and simulate pressing the Enter key using the Keys.RETURN enumeration value.

In the test code, we set up the WebDriver, navigate to the target web page, and locate the input field using the locator variable. We then call the press_keys method with the driver, locator, and "your_username" as input. After pressing the keys, you can perform any additional actions as needed.

Remember to replace "https://www.example.com", "username", and "your_username" with the actual URL, input field ID or name, and the text you want to type into the input field.