Rails Proxy

Parsing is the collection of all information. Accordingly, parsing a site is copying all of its source code as presented. You can use it to edit the site further or to analyze it for security purposes.

There are many free VPN services. But it is not safe to use them. After all, they are just engaged in parsing. That is, they collect information about users. Most often - their IP-addresses, as well as text data (these are search queries and their personal information).

And it depends on what purpose the proxy is used for. But you should definitely give preference to paid proxies. They are more reliable, always available, and with that comes a guarantee of privacy. Unfortunately, personal data is often stolen from free proxies.

The error message "cannot create temp dir for user data dir" typically occurs when Selenium is unable to create a temporary directory for its user data. This issue can be caused by several factors, such as insufficient permissions or a full disk.

Here are some steps you can take to resolve this issue:

Check available disk space:

Ensure that your system has enough free disk space to create a temporary directory. If your disk is almost full, consider clearing some space or moving files to another storage location.

Check permissions:

Make sure that your user account has the necessary permissions to create and modify files and directories in the specified location. You can try changing the permissions of the directory or creating a new directory with the appropriate permissions.

Specify a custom user data directory:

You can specify a custom user data directory for Selenium by using the --user-data-dir option in the ChromeOptions class. This allows you to choose a location with enough free space and the appropriate permissions.

Here's an example of how to set a custom user data directory in Python:

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

chrome_options = Options()
chrome_options.add_argument("--user-data-dir=/path/to/custom/user/data/dir")

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

# Rest of your code

driver.quit()

Replace /path/to/custom/user/data/dir with the path to the directory you want to use as the user data directory.

Check for antivirus or security software interference:

Sometimes, antivirus or security software can interfere with the creation of temporary directories. Try temporarily disabling your antivirus or security software to see if it resolves the issue. If it does, you may need to add an exception for Selenium or change your antivirus settings.

Restart your system:

In some cases, simply restarting your system can resolve the issue. This can help free up disk space and resolve any temporary issues with permissions or disk access.

If you've tried all these steps and are still encountering the error, please provide more information about your system, including the operating system, disk space, and any relevant error messages or logs. This will help diagnose the issue further and find a suitable solution.

If your proxy gives you a 504 error, it means the server failed to complete the request within the time period you specified. Refreshing the page may help. Another option is to switch to another browser. You can also use the incognito mode, pre-clearing the browser cache. Pay attention to plug-ins that can also cause this error.