Description

Make TCP inactivity timeout configurable

Previously, mitmproxy used a hardcoded TCP inactivity timeout of 10 minutes (600 seconds) for all TCP connections. This change makes the timeout configurable through a new tcp_timeout option, allowing users to adjust the timeout based on their specific use cases.

Changes:

• Added tcp_timeout option to mitmproxy/options.py with default value of 600 seconds
• Updated mitmproxy/proxy/server.py to use the configurable timeout instead of hardcoded TCP_TIMEOUT
• Added command-line support for the new option in mitmproxy/tools/cmdline.py
• Added comprehensive tests for the new option in test/mitmproxy/test_options.py
• Updated web interface TypeScript definitions to include the new option

Usage:

# Set TCP timeout to 5 minutes
mitmproxy --set tcp_timeout=300

# Set TCP timeout to 30 minutes  
mitmproxy --set tcp_timeout=1800

This change maintains backward compatibility by keeping the same default timeout value while providing the flexibility to adjust it for different network environments and use cases.

Checklist

• I have updated tests where applicable.
• I have added an entry to the CHANGELOG.md