require 'fcgi'
require 'socket'
require 'rack/content_length'
require 'rack/rewindable_input'
if defined? FCGI::Stream
class FCGI::Stream
alias _rack_read_without_buffer read
def read(n, buffer=nil)
buf = _rack_read_without_buffer n
buffer.replace(buf.to_s) if buffer
buf
end
end
end
module Rack
module Handler
class FastCGI
def self.run(app, options={})
if options[:File]
STDIN.reopen(UNIXServer.new(options[:File]))
elsif options[:Port]
STDIN.reopen(TCPServer.new(options[:Host], options[:Port]))
end
FCGI.each { |request|
serve request, app
}
end
def self.valid_options
environment = ENV['RACK_ENV'] || 'development'
default_host = environment == 'development' ? 'localhost' : '0.0.0.0'
{
"Host=HOST" => "Hostname to listen on (default: #{default_host})",
"Port=PORT" => "Port to listen on (default: 8080)",
"File=PATH" => "Creates a Domain socket at PATH instead of a TCP socket. Ignores Host and Port if set.",
}
end
def self.serve(request, app)
env = request.env
env.delete "HTTP_CONTENT_LENGTH"
env["SCRIPT_NAME"] = "" if env["SCRIPT_NAME"] == "/"
rack_input = RewindableInput.new(request.in)
env.update({"rack.version" => Rack::VERSION,
"rack.input" => rack_input,
"rack.errors" => request.err,
"rack.multithread" => false,
"rack.multiprocess" => true,
"rack.run_once" => false,
"rack.url_scheme" => ["yes", "on", "1"].include?(env["HTTPS"]) ? "https" : "http"
})
env[QUERY_STRING] ||= ""
env["HTTP_VERSION"] ||= env["SERVER_PROTOCOL"]
env["REQUEST_PATH"] ||= "/"
env.delete "CONTENT_TYPE" if env["CONTENT_TYPE"] == ""
env.delete "CONTENT_LENGTH" if env["CONTENT_LENGTH"] == ""
begin
status, headers, body = app.call(env)
begin
send_headers request.out, status, headers
send_body request.out, body
ensure
body.close if body.respond_to? :close
end
ensure
rack_input.close
request.finish
end
end
def self.send_headers(out, status, headers)
out.print "Status: #{status}\r\n"
headers.each { |k, vs|
vs.split("\n").each { |v|
out.print "#{k}: #{v}\r\n"
}
}
out.print "\r\n"
out.flush
end
def self.send_body(out, body)
body.each { |part|
out.print part
out.flush
}
end
end
end
end
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