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# Copyright (c) 2005 Zed A. Shaw
# You can redistribute it and/or modify it under the same terms as Ruby.
#
# Additional work donated by contributors. See http://mongrel.rubyforge.org/attributions.html
# for more information.
require 'mongrel'
require 'cgi'
require 'action_controller/dispatcher'
module Rails
module MongrelServer
# Implements a handler that can run Rails and serve files out of the
# Rails application's public directory. This lets you run your Rails
# application with Mongrel during development and testing, then use it
# also in production behind a server that's better at serving the
# static files.
#
# The RailsHandler takes a mime_map parameter which is a simple suffix=mimetype
# mapping that it should add to the list of valid mime types.
#
# It also supports page caching directly and will try to resolve a request
# in the following order:
#
# * If the requested exact PATH_INFO exists as a file then serve it.
# * If it exists at PATH_INFO+".html" exists then serve that.
# * Finally, construct a Mongrel::CGIWrapper and run Dispatcher.dispatch to have Rails go.
#
# This means that if you are using page caching it will actually work with Mongrel
# and you should see a decent speed boost (but not as fast as if you use a static
# server like Apache or Litespeed).
class RailsHandler < Mongrel::HttpHandler
# Construct a Mongrel::CGIWrapper and dispatch.
def process(request, response)
return if response.socket.closed?
cgi = Mongrel::CGIWrapper.new(request, response)
cgi.handler = self
# We don't want the output to be really final until we're out of the lock
cgi.default_really_final = false
ActionController::Dispatcher.dispatch(cgi, ActionController::CgiRequest::DEFAULT_SESSION_OPTIONS, response.body)
# This finalizes the output using the proper HttpResponse way
cgi.out("text/html",true) {""}
rescue Errno::EPIPE
response.socket.close
rescue Object => rails_error
STDERR.puts "#{Time.now.httpdate}: Error dispatching #{rails_error.inspect}"
STDERR.puts rails_error.backtrace.join("\n")
end
end
end
end
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