rust-rpxy/TODO.md

TODO List

• [Done in 0.6.0] Fix strategy for h2c requests on forwarded requests upstream. This needs to update forwarder definition. Also, maybe forwarder would have a cache corresponding to the following task.

• [Try in v0.6.0] Cache option for the response with Cache-Control: public header directive (#55)

• Improvement of path matcher

• More flexible option for rewriting path

• Refactoring

  • Split backend module into three parts

    • backend(s): struct containing info, defined for each served domain with multiple paths
    • upstream/upstream group: information on targeted destinations for each set of (a domain + a path)
    • load-balance: load balancing mod for a domain + path

• Unit tests

• Options to serve custom http_error page.

• Prometheus metrics

• Documentation

• Client certificate

  • support intermediate certificate. Currently, only supports client certificates directly signed by root CA.
  • Currently, we took the following approach (caveats)
    • For Http2 and 1.1, prepare rustls::ServerConfig for each domain name and hence client CA cert is set for each one.
    • For Http3, use aggregated rustls::ServerConfig for multiple domain names except for ones requiring client-auth. So, if a domain name is set with client authentication, http3 doesn't work for the domain.

• Make the session-persistance option for load-balancing sophisticated. (mostly done in v0.3.0)

  • add option for sticky cookie name
  • add option for sticky cookie duration

• Done in v0.5.0 Use gchr.io

• Done in v0.5.0: Consideration on migrating from quinn and h3-quinn to other QUIC implementations (#57)

• Done in v0.4.0: Benchmark with other reverse proxy implementations like Sozu (#58) Currently, Sozu can work only on amd64 format due to its HTTP message parser limitation... Since the main developer have only arm64 (Apple M1) laptops, so we should do that on VPS?

• Done in v0.4.0: Split rpxy source codes into rpxy-lib and rpxy-bin to make the core part (reverse proxy) isolated from the misc part like toml file loader. This is in order to make the configuration-related part more flexible (related to #33)

• etc.