This pull request introduces several new features and improvements, including enhanced trusted proxy management, more flexible configuration via startup flags, and updates to documentation and Docker workflow. The most notable changes are the addition of trusted proxy APIs, dynamic path initialization based on startup flags, and improvements to ACME certificate renewal logic.

Notes: Unlike previous rc-1 which finalize the new feature sets, this release only contains a subset of new features and introduce a new implementation to dpcore which some users might find really helpful. More features will be added in rc-2 after the Lunar New Year holiday.

Trusted Proxy Management:

• Added a new set of API endpoints and handlers for managing trusted proxies, including listing, adding, removing, and updating trusted proxies, as well as toggling the TrustProxyHeadersOnly setting in src/accesslist.go and registering these APIs in src/api.go. [1] [2]
• Introduced a TrustProxyHeadersOnly field to the default access rule in src/mod/access/access.go.

Configuration and Startup Improvements:

• Refactored configuration path constants to be initialized dynamically from startup flags, allowing users to specify paths for configuration, database, and temporary folders at runtime. Updated related usages and removed hardcoded paths in src/def.go and initialized them in src/main.go. [1] [2] [3] [4] [5] [6]
• Updated the admin account reset logic to use the configurable database path in src/main.go.
• Changed the backup logic to use the dynamic database path in src/config.go.

ACME Certificate Renewal Logic:

• Improved ACME certificate renewal to more robustly restore only those settings that were changed during the process, clarifying and fixing the logic for temporary changes to HTTP/HTTPS redirect and port 80 listener in src/acme.go. [1] [2] [3]

API and Feature Updates:

• Added new API endpoint for toggling PROXY protocol support and for WebDAV server controls, while removing the file manager APIs from the static web server API registration in src/api.go. [1] [2]

Documentation and Workflow Updates:

• Updated the Docker workflow to support environment variable overrides for Docker account, repo, cache, platforms, and runner, making it more flexible for different environments in .github/workflows/docker.yml.
• Expanded the README.md with new command-line options, configuration flags, and a section for community-contributed features. [1] [2] [3] [4]