Class: Girl::Proxyd

Inherits:
Object
  • Object
show all
Defined in:
lib/girl/proxyd.rb

Instance Method Summary collapse

Constructor Details

#initialize(config_path = nil) ⇒ Proxyd

Returns a new instance of Proxyd.



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# File 'lib/girl/proxyd.rb', line 14

def initialize( config_path = nil )
  if config_path then
    raise "not found config file #{ config_path }" unless File.exist?( config_path )
    conf = JSON.parse( IO.binread( config_path ), symbolize_names: true )
    puts "load #{ config_path } #{ conf.inspect }"
    proxyd_port = conf[ :proxyd_port ]
    memd_port = conf[ :memd_port ]
    nameserver = conf[ :nameserver ]
    reset_traff_day = conf[ :reset_traff_day ]
    ims = conf[ :ims ]
    p2d_host = conf[ :p2d_host ]
    p2d_port = conf[ :p2d_port ]
    head_len = conf[ :head_len ]               # 头长度
    h_a_new_source = conf[ :h_a_new_source ]   # A
    h_a_new_p2 = conf[ :h_a_new_p2 ]           # B
    h_dst_close = conf[ :h_dst_close ]         # D
    h_heartbeat = conf[ :h_heartbeat ]         # H
    h_p1_close = conf[ :h_p1_close ]           # I
    h_p2_close = conf[ :h_p2_close ]           # J
    h_p2_traffic = conf[ :h_p2_traffic ]       # K
    h_p1_overflow = conf[ :h_p1_overflow ]     # L
    h_p1_underhalf = conf[ :h_p1_underhalf ]   # M
    h_p2_overflow = conf[ :h_p2_overflow ]     # N
    h_p2_underhalf = conf[ :h_p2_underhalf ]   # O
    h_query = conf[ :h_query ]                 # Q
    h_response = conf[ :h_response ]           # R
    h_src_close = conf[ :h_src_close ]         # S
    h_traffic = conf[ :h_traffic ]             # T
    h_src_overflow = conf[ :h_src_overflow ]   # U
    h_src_underhalf = conf[ :h_src_underhalf ] # V
    h_dst_overflow = conf[ :h_dst_overflow ]   # W
    h_dst_underhalf = conf[ :h_dst_underhalf ] # X
    expire_connecting = conf[ :expire_connecting ]     # 连接多久没有建成关闭（秒）
    expire_long_after = conf[ :expire_long_after ]     # 长连接多久没有新流量关闭（秒）
    expire_proxy_after = conf[ :expire_proxy_after ]   # proxy多久没有收到流量重建（秒）
    expire_resolv_cache = conf[ :expire_resolv_cache ] # dns查询结果缓存多久（秒）
    expire_short_after = conf[ :expire_short_after ]   # 短连接创建多久后关闭（秒）
    is_debug = conf[ :is_debug ]
  end

  proxyd_port = proxyd_port ? proxyd_port.to_i : 6060
  memd_port = memd_port ? memd_port.to_i : proxyd_port + 1

  if nameserver then
    nameservers = nameserver.split( ' ' )
  else
    nameservers = []
    resolv_path = '/etc/resolv.conf'

    if File.exist?( resolv_path ) then
      text = IO.read( '/etc/resolv.conf' )

      text.split( "\n" ).each do | line |
        match_data = /^nameserver \d{1,3}\.\d{1,3}\.\d{1,3}.\d{1,3}/.match( line )

        if match_data then
          nameservers << match_data[ 0 ].split(' ')[ 1 ].strip
          break if nameservers.size >= 3
        end
      end
    end
  end

  nameservers << '8.8.8.8' if nameservers.empty?
  reset_traff_day = reset_traff_day ? reset_traff_day.to_i : 1
  ims = [] unless ims
  p2d_host = p2d_host ? p2d_host.to_s : '127.0.0.1'
  p2d_port = p2d_port ? p2d_port.to_i : proxyd_port + 2
  head_len = head_len ? head_len.to_i : 59
  h_a_new_source = h_a_new_source ? h_a_new_source.to_s : 'A'
  h_a_new_p2 = h_a_new_p2 ? h_a_new_p2.to_s : 'B'
  h_dst_close = h_dst_close ? h_dst_close.to_s : 'D'
  h_heartbeat = h_heartbeat ? h_heartbeat.to_s : 'H'
  h_p1_close = h_p1_close ? h_p1_close.to_s : 'I'
  h_p2_close = h_p2_close ? h_p2_close.to_s : 'J'
  h_p2_traffic = h_p2_traffic ? h_p2_traffic.to_s : 'K'
  h_p1_overflow = h_p1_overflow ? h_p1_overflow.to_s : 'L'
  h_p1_underhalf = h_p1_underhalf ? h_p1_underhalf.to_s : 'M'
  h_p2_overflow = h_p2_overflow ? h_p2_overflow.to_s : 'N'
  h_p2_underhalf = h_p2_underhalf ? h_p2_underhalf.to_s : 'O'
  h_query = h_query ? h_query.to_s : 'Q'
  h_response = h_response ? h_response.to_s : 'R'
  h_src_close = h_src_close ? h_src_close.to_s : 'S'
  h_traffic = h_traffic ? h_traffic.to_s : 'T'
  h_src_overflow = h_src_overflow ? h_src_overflow.to_s : 'U'
  h_src_underhalf = h_src_underhalf ? h_src_underhalf.to_s : 'V'
  h_dst_overflow = h_dst_overflow ? h_dst_overflow.to_s : 'W'
  h_dst_underhalf = h_dst_underhalf ? h_dst_underhalf.to_s : 'X'
  expire_connecting = expire_connecting ? expire_connecting.to_i : 5
  expire_long_after = expire_long_after ? expire_long_after.to_i : 3600
  expire_proxy_after = expire_proxy_after ? expire_proxy_after.to_i : 60
  expire_resolv_cache = expire_resolv_cache ? expire_resolv_cache.to_i : 600
  expire_short_after = expire_short_after ? expire_short_after.to_i : 5
  is_server_fastopen = false

  if RUBY_PLATFORM.include?( 'linux' ) then
    IO.popen( 'sysctl -n net.ipv4.tcp_fastopen' ) do | io |
      output = io.read
      val = output.to_i % 4

      if [ 2, 3 ].include?( val ) then
        is_server_fastopen = true
      end
    end
  end

  puts "girl proxyd #{ Girl::VERSION }"
  puts "#{ proxyd_port } #{ memd_port } #{ p2d_host } #{ p2d_port } #{ nameservers.inspect } #{ reset_traff_day } #{ is_server_fastopen }"

  if %w[ darwin linux ].any?{ | plat | RUBY_PLATFORM.include?( plat ) } then
    Process.setrlimit( :NOFILE, RLIMIT )
    puts "NOFILE #{ Process.getrlimit( :NOFILE ).inspect }"
  end

  worker = Girl::ProxydWorker.new(
    proxyd_port,
    memd_port,
    nameservers,
    reset_traff_day,
    ims,
    p2d_host,
    p2d_port,
    head_len,
    h_a_new_source,
    h_a_new_p2,
    h_dst_close,
    h_heartbeat,
    h_p1_close,
    h_p2_close,
    h_p2_traffic,
    h_p1_overflow,
    h_p1_underhalf,
    h_p2_overflow,
    h_p2_underhalf,
    h_query,
    h_response,
    h_src_close,
    h_traffic,
    h_src_overflow,
    h_src_underhalf,
    h_dst_overflow,
    h_dst_underhalf,
    expire_connecting,
    expire_long_after,
    expire_proxy_after,
    expire_resolv_cache,
    expire_short_after,
    is_debug,
    is_server_fastopen )

  Signal.trap( :TERM ) do
    puts 'exit'
    worker.quit!
  end

  worker.looping
end