eventmachine-proxy

Minimal CONNECT proxy server.

Features

Tiny.
Efficient. It uses EM-native proxying methods.
Backpressure handling. To keep memory usage low and bounded, connections are paused if the receiver is slower than the sender.
Secure. Only global unicast addresses are allowed by default.

$ gem install eventmachine-proxy

require "eventmachine-proxy"

EventMachine.run do
  EventMachine.start_server("127.0.0.1", 3128, EventMachine::Protocols::CONNECT)
end

The code above starts an HTTPS proxy server on port 3128. To test it:

$ curl -px 127.0.0.1:3128 https://example.org

The following options can be passed as the last argument.

Option	Description	Default
`connect_timeout`	Timeout to establish proxy connection	20.0 s
`connection_inactivity_timeout`	Auto-close connection after this inactivity timeout	0
`connection_buffer_size`	Proxy buffer size, one way	8 MiB
`request_buffer_size`	CONNECT request buffer size	1 KiB
`allow_all`	Allow addresses other than global unicast	false

Pull requests are welcome.

To run tests:

$ ruby -Ilib test/test_*

To run the benchmark:

$ ruby -Ilib benchmark.rb