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README.md

SurroGate

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SurroGate is a generic purrpose TCP-to-TCP proxy for Ruby implemented using epoll.

Installation

Add this line to your application's Gemfile:

gem 'surro-gate'

And then execute:

$ bundle

Or install it yourself as:

$ gem install surro-gate

Usage

require 'surro-gate'

proxy = SurroGate.new

# Create a pair of TCP socket connections
sock_1 = TCPSocket.new('localhost', 1111)
sock_2 = TCPSocket.new('localhost', 2222)

# Push the pair of sockets to the proxy
proxy.push(sock_1, sock_2)

loop do
  # Select with a 1 second timeout
  proxy.select(1000)

  # Do some hard work
  proxy.each_ready do |left, right|
    begin
      right.write_nonblock(left.read_nonblock(4096))
    rescue => ex
      # ...
      proxy.pop(left, right) # Remove the failed connection pair from the proxy
    end
  end
end

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/skateman/surro-gate.

License

The gem is available as open source under the terms of the MIT License.

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A general purrpose TCP-to-TCP proxy implemented in Ruby

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