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#!/usr/bin/env ruby |
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|
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require 'rubygems' |
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require 'daemons' |
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require 'geoip' |
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require 'socket' |
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require "optparse" |
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|
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ENV["RAILS_ENV"] ||= "production" |
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require File.dirname(__FILE__)+'/../config/environment' |
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|
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Rails.configuration.log_level = :info # Disable debug |
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ActiveRecord::Base.allow_concurrency = true |
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|
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BASE_PATH = File.expand_path(GitoriousConfig['repository_base_path']) |
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|
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TIMEOUT = 30 |
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MAX_CHILDREN = 30 |
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$children_reaped = 0 |
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$children_active = 0 |
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|
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module Git |
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class Daemon |
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include Daemonize |
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|
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SERVICE_REGEXP = /(\w{4})(git\-upload\-pack)\s(.+)\x0host=([\w\.\-]+)/.freeze |
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|
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def initialize(options) |
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@options = options |
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end |
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|
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def start |
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if @options[:daemonize] |
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daemonize(@options[:logfile]) |
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File.open(@options[:pidfile], "w") do |f| |
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f.write(Process.pid) |
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end |
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end |
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@socket = TCPServer.new(@options[:host], @options[:port]) |
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log(Process.pid, "Listening on #{@options[:host]}:#{@options[:port]}...") |
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run |
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end |
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|
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def run |
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while session = @socket.accept |
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connections = $children_active - $children_reaped |
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if connections > MAX_CHILDREN |
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log(Process.pid, "too many active children #{connections}/#{MAX_CHILDREN}") |
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session.close |
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next |
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end |
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|
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run_service(session) |
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end |
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end |
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|
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def run_service(session) |
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$children_active += 1 |
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ip_family, port, name, ip = session.peeraddr |
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|
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line = session.recv(1000) |
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|
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if line =~ SERVICE_REGEXP |
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start_time = Time.now |
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code = $1 |
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service = $2 |
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base_path = $3 |
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host = $4 |
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|
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path = File.expand_path("#{BASE_PATH}/#{base_path}") |
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if !path.index(BASE_PATH) == 0 || !File.directory?(path) |
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log(Process.pid, "Invalid path: #{base_path}") |
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session.close |
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$children_active -= 1 |
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return |
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end |
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|
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if !File.exist?(File.join(path, "git-daemon-export-ok")) |
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session.close |
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$children_active -= 1 |
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return |
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end |
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|
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Dir.chdir(path) do |
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cmd = "git-upload-pack --strict --timeout=#{TIMEOUT} ." |
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|
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fork do |
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repository = nil |
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|
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begin |
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repository = ::Repository.find_by_path(path) |
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rescue => e |
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log(Process.pid, "AR error: #{e.class.name} #{e.message}:\n #{e.backtrace.join("\n ")}") |
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end |
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|
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pid = Process.pid |
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log(pid, "Connection from #{ip} for #{path.inspect}") |
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|
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$stdout.reopen(session) |
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$stdin.reopen(session) |
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session.close |
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|
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if repository |
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if ip_family == "AF_INET6" |
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repository.cloned_from(ip) |
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else |
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geoip = GeoIP.new(File.join(RAILS_ROOT, "data", "GeoIP.dat")) |
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localization = geoip.country(ip) |
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repository.cloned_from(ip, localization[3], localization[5]) |
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end |
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else |
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log(pid, "Cannot find repository: #{path}") |
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end |
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log(Process.pid, "Deferred in #{'%0.5f' % (Time.now - start_time)}s") |
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|
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exec(cmd) |
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# FIXME; we don't ever get here since we exec(), so reaped count may be incorrect |
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$children_reaped += 1 |
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exit! |
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end |
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end rescue Errno::EAGAIN |
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else |
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$stderr.puts "Invalid request from #{ip}: #{line}" |
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session.close |
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$children_active -= 1 |
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end |
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end |
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|
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def handle_stop(signal) |
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log(Process.pid, "Received #{signal}, exiting..") |
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exit 0 |
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end |
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|
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def handle_cld |
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loop do |
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pid = nil |
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begin |
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pid = Process.wait(-1, Process::WNOHANG) |
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rescue Errno::ECHILD |
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break |
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end |
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|
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if pid && $? |
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$children_reaped += 1 |
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log(pid, "Disconnected. (status=#{$?.exitstatus})") if pid > 0 |
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if $children_reaped == $children_active |
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$children_reaped = 0 |
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$children_active = 0 |
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end |
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|
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next |
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end |
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break |
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end |
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end |
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|
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def log(pid, msg) |
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$stderr.puts "#{Time.now.strftime("%Y-%m-%d %H:%M:%S")} [#{pid}] #{msg}" |
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end |
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|
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end |
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end |
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|
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options = { |
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:port => 9418, |
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:host => "0.0.0.0", |
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:logfile => File.join(RAILS_ROOT, "log", "git-daemon.log"), |
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:pidfile => File.join(RAILS_ROOT, "log", "git-daemon.pid"), |
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:daemonize => false |
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|
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} |
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|
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OptionParser.new do |opts| |
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opts.banner = "Usage: #{$0} [options]" |
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|
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opts.on("-p", "--port=[port]", Integer, "Port to listen on", "Default: #{options[:port]}") do |o| |
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options[:port] = o |
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end |
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|
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opts.on("-a", "--address=[host]", "Host to listen on", "Default: #{options[:host]}") do |o| |
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options[:host] = o |
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end |
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|
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opts.on("-l", "--logfile=[file]", "File to log to", "Default: #{options[:logfile]}") do |o| |
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options[:logfile] = o |
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end |
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|
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opts.on("-P", "--pidfile=[file]", "PID file to use (if daemonized)", "Default: #{options[:pidfile]}") do |o| |
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options[:pidfile] = o |
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end |
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|
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opts.on("-d", "--daemonize", "Daemonize or run in foreground", "Default: #{options[:daemonize]}") do |o| |
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options[:daemonize] = o |
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end |
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|
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opts.on_tail("-h", "--help", "Show this help message.") do |
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puts opts |
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exit |
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end |
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|
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# opts.on("-e", "--environment", "RAILS_ENV to use") do |o| |
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# options[:port] = o |
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# end |
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end.parse! |
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|
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@git_daemon = Git::Daemon.new(options) |
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|
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trap("SIGKILL") { @git_daemon.handle_stop("SIGKILL") } |
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trap("TERM") { @git_daemon.handle_stop("TERM") } |
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trap("SIGINT") { @git_daemon.handle_stop("SIGINT") } |
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trap("CLD") { @git_daemon.handle_cld } |
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|
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@git_daemon.start |
