bin/service/netrpc_server.py

   1 # -*- coding: utf-8 -*-
   2
   3 #
   4 # Copyright P. Christeas <p_christ@hol.gr> 2008,2009
   5 #    Copyright (C) 2004-2009 Tiny SPRL (<http://tiny.be>).
   6 #
   7 #    This program is free software: you can redistribute it and/or modify
   8 #    it under the terms of the GNU Affero General Public License as
   9 #    published by the Free Software Foundation, either version 3 of the
  10 #    License, or (at your option) any later version.
  11 #
  12 #    This program is distributed in the hope that it will be useful,
  13 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 #    GNU Affero General Public License for more details.
  16 #
  17 #    You should have received a copy of the GNU Affero General Public License
  18 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 #
  20 ##############################################################################
  21
  22 """ This file contains instance of the net-rpc server
  23
  24
  25 """
  26 import netsvc
  27 import threading
  28 import tools
  29 import os
  30 import select
  31 import socket
  32
  33 import tiny_socket
  34
  35 class TinySocketClientThread(threading.Thread, netsvc.OpenERPDispatcher):
  36     def __init__(self, sock, threads):
  37         threading.Thread.__init__(self)
  38         self.sock = sock
  39         # Only at the server side, use a big timeout: close the
  40         # clients connection when they're idle for 20min.
  41         self.sock.settimeout(1200)
  42         self.threads = threads
  43
  44     def __del__(self):
  45         if self.sock:
  46             try:
  47                 self.socket.shutdown(
  48                     getattr(socket, 'SHUT_RDWR', 2))
  49             except: pass
  50             # That should garbage-collect and close it, too
  51             self.sock = None
  52
  53     def run(self):
  54         self.running = True
  55         try:
  56             ts = tiny_socket.mysocket(self.sock)
  57         except:
  58             self.threads.remove(self)
  59             self.running = False
  60             return False
  61         while self.running:
  62             try:
  63                 msg = ts.myreceive()
  64             except:
  65                 self.threads.remove(self)
  66                 self.running = False
  67                 return False
  68             try:
  69                 result = self.dispatch(msg[0], msg[1], msg[2:])
  70                 ts.mysend(result)
  71             except netsvc.OpenERPDispatcherException, e:
  72                 try:
  73                     new_e = Exception(tools.exception_to_unicode(e.exception)) # avoid problems of pickeling
  74                     ts.mysend(new_e, exception=True, traceback=e.traceback)
  75                 except:
  76                     self.running = False
  77                     break
  78             except Exception, e:
  79                 # this code should not be reachable, therefore we warn
  80                 netsvc.Logger().notifyChannel("net-rpc", netsvc.LOG_WARNING, "exception: %s" % str(e))
  81                 break
  82
  83         self.threads.remove(self)
  84         self.running = False
  85         return True
  86
  87     def stop(self):
  88         self.running = False
  89
  90
  91 class TinySocketServerThread(threading.Thread,netsvc.Server):
  92     def __init__(self, interface, port, secure=False):
  93         threading.Thread.__init__(self, name="Net-RPC socket")
  94         netsvc.Server.__init__(self)
  95         self.__port = port
  96         self.__interface = interface
  97         self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
  98         self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
  99         self.socket.bind((self.__interface, self.__port))
 100         self.socket.listen(5)
 101         self.threads = []
 102         netsvc.Logger().notifyChannel("web-services", netsvc.LOG_INFO,
 103                          "starting NET-RPC service at %s port %d" % (interface or '0.0.0.0', port,))
 104
 105     def run(self):
 106         try:
 107             self.running = True
 108             while self.running:
 109                 timeout = self.socket.gettimeout()
 110                 fd_sets = select.select([self.socket], [], [], timeout)
 111                 if not fd_sets[0]:
 112                     continue
 113                 (clientsocket, address) = self.socket.accept()
 114                 ct = TinySocketClientThread(clientsocket, self.threads)
 115                 clientsocket = None
 116                 self.threads.append(ct)
 117                 ct.start()
 118                 lt = len(self.threads)
 119                 if (lt > 10) and (lt % 10 == 0):
 120                      # Not many threads should be serving at the same time, so log
 121                      # their abuse.
 122                      netsvc.Logger().notifyChannel("web-services", netsvc.LOG_DEBUG,
 123                         "Netrpc: %d threads" % len(self.threads))
 124             self.socket.close()
 125         except Exception, e:
 126             import logging
 127             logging.getLogger('web-services').warning("Netrpc: closing because of exception %s" % str(e))
 128             self.socket.close()
 129             return False
 130
 131     def stop(self):
 132         self.running = False
 133         for t in self.threads:
 134             t.stop()
 135         self._close_socket()
 136
 137     def stats(self):
 138         res = "Net-RPC: " + ( (self.running and "running") or  "stopped")
 139         i = 0
 140         for t in self.threads:
 141             i += 1
 142             res += "\nNet-RPC #%d: %s " % (i, t.name)
 143             if t.isAlive():
 144                 res += "running"
 145             else:
 146                 res += "finished"
 147             if t.sock:
 148                 res += ", socket"
 149         return res
 150
 151 netrpcd = None
 152
 153 def init_servers():
 154     global netrpcd
 155     if tools.config.get_misc('netrpcd','enable', True):
 156         netrpcd = TinySocketServerThread(tools.config.get_misc('netrpcd','interface', ''), \
 157             int(tools.config.get_misc('netrpcd','port', tools.config.get('netport', 8070))))