VK User Bot: Accept friend requests automatically

[konard]

🤖 AI-Powered Solution

This pull request automatically solves issue #93 by implementing friend request auto-acceptance functionality for the VK User Bot.

📋 Issue Reference

Fixes #93

✅ Implementation Summary

Added friend request auto-acceptance functionality to the VK User Bot:

New Features

• Background monitoring: Automatically checks for new friend requests every 30 seconds (configurable)
• Automatic acceptance: Immediately accepts all pending friend requests using VK User API
• Error handling: Comprehensive error handling for all VK API error codes (blocked users, not found, too many friends, etc.)
• Configurable: Can be enabled/disabled and check interval can be adjusted
• Logging: Detailed logging of all friend request operations

Files Modified

• python/userbot.py: Extended UserBot class with friend request methods
• python/__main__.py: Integrated friend request monitoring into bot startup
• python/config.py: Added configuration options
• python/README.md: Updated documentation with setup instructions

Files Added

• python/test_friend_requests.py: Test script to verify functionality

🛠️ Technical Implementation

UserBot Class Extensions

1. get_friend_requests() - Retrieves pending friend request user IDs
2. accept_friend_request(user_id) - Accepts individual friend requests
3. check_and_accept_friend_requests() - Checks and accepts all pending requests
4. start_friend_request_monitor() - Starts background monitoring thread
5. stop_friend_request_monitor() - Stops background monitoring

Configuration Options

FRIEND_REQUEST_AUTO_ACCEPT = True  # Enable/disable feature
FRIEND_REQUEST_CHECK_INTERVAL = 30  # Check interval in seconds

🧪 Testing

Run the test script to verify functionality:

cd python
python3 test_friend_requests.py

📚 Usage

1. Set USER_TOKEN in tokens.py with VK user token (requires "friends" permission)
2. Ensure FRIEND_REQUEST_AUTO_ACCEPT = True in config.py (default)
3. Start the bot: python3 __main__.py

The bot will automatically:

• Start friend request monitoring on startup
• Check for new requests every 30 seconds
• Accept all pending friend requests
• Log all operations and errors

🔒 Security & Error Handling

The implementation handles all VK API error scenarios:

• User blocked/blocking situations
• Invalid user IDs
• Rate limiting
• API permission issues
• Network errors

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