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 select
  30 import socket
  31
  32 import tiny_socket
  33
  34 class TinySocketClientThread(threading.Thread, netsvc.OpenERPDispatcher):
  35     def __init__(self, sock, threads):
  36         threading.Thread.__init__(self)
  37         self.sock = sock
  38         # Only at the server side, use a big timeout: close the
  39         # clients connection when they're idle for 20min.
  40         self.sock.settimeout(1200)
  41         self.threads = threads
  42
  43     def __del__(self):
  44         if self.sock:
  45             try:
  46                 self.socket.shutdown(
  47                     getattr(socket, 'SHUT_RDWR', 2))
  48             except: pass
  49             # That should garbage-collect and close it, too
  50             self.sock = None
  51
  52     def run(self):
  53         self.running = True
  54         try:
  55             ts = tiny_socket.mysocket(self.sock)
  56         except:
  57             self.threads.remove(self)
  58             self.running = False
  59             return False
  60         while self.running:
  61             try:
  62                 msg = ts.myreceive()
  63             except:
  64                 self.threads.remove(self)
  65                 self.running = False
  66                 return False
  67             try:
  68                 result = self.dispatch(msg[0], msg[1], msg[2:])
  69                 ts.mysend(result)
  70             except netsvc.OpenERPDispatcherException, e:
  71                 try:
  72                     new_e = Exception(tools.exception_to_unicode(e.exception)) # avoid problems of pickeling
  73                     ts.mysend(new_e, exception=True, traceback=e.traceback)
  74                 except:
  75                     self.running = False
  76                     break
  77             except Exception, e:
  78                 # this code should not be reachable, therefore we warn
  79                 netsvc.Logger().notifyChannel("net-rpc", netsvc.LOG_WARNING, "exception: %s" % str(e))
  80                 break
  81
  82         self.threads.remove(self)
  83         self.running = False
  84         return True
  85
  86     def stop(self):
  87         self.running = False
  88
  89
  90 class TinySocketServerThread(threading.Thread,netsvc.Server):
  91     def __init__(self, interface, port, secure=False):
  92         threading.Thread.__init__(self, name="Net-RPC socket")
  93         netsvc.Server.__init__(self)
  94         self.__port = port
  95         self.__interface = interface
  96         self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
  97         self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
  98         self.socket.bind((self.__interface, self.__port))
  99         self.socket.listen(5)
 100         self.threads = []
 101         netsvc.Logger().notifyChannel("web-services", netsvc.LOG_INFO,
 102                          "starting NET-RPC service at %s port %d" % (interface or '0.0.0.0', port,))
 103
 104     def run(self):
 105         try:
 106             self.running = True
 107             while self.running:
 108                 timeout = self.socket.gettimeout()
 109                 fd_sets = select.select([self.socket], [], [], timeout)
 110                 if not fd_sets[0]:
 111                     continue
 112                 (clientsocket, address) = self.socket.accept()
 113                 ct = TinySocketClientThread(clientsocket, self.threads)
 114                 clientsocket = None
 115                 self.threads.append(ct)
 116                 ct.start()
 117                 lt = len(self.threads)
 118                 if (lt > 10) and (lt % 10 == 0):
 119                      # Not many threads should be serving at the same time, so log
 120                      # their abuse.
 121                      netsvc.Logger().notifyChannel("web-services", netsvc.LOG_DEBUG,
 122                         "Netrpc: %d threads" % len(self.threads))
 123             self.socket.close()
 124         except Exception, e:
 125             import logging
 126             logging.getLogger('web-services').warning("Netrpc: closing because of exception %s" % str(e))
 127             self.socket.close()
 128             return False
 129
 130     def stop(self):
 131         self.running = False
 132         for t in self.threads:
 133             t.stop()
 134         self._close_socket()
 135
 136     def stats(self):
 137         res = "Net-RPC: " + ( (self.running and "running") or  "stopped")
 138         i = 0
 139         for t in self.threads:
 140             i += 1
 141             res += "\nNet-RPC #%d: %s " % (i, t.name)
 142             if t.isAlive():
 143                 res += "running"
 144             else:
 145                 res += "finished"
 146             if t.sock:
 147                 res += ", socket"
 148         return res
 149
 150 netrpcd = None
 151
 152 def init_servers():
 153     global netrpcd
 154     if tools.config.get('netrpc', False):
 155         netrpcd = TinySocketServerThread(
 156             tools.config.get('netrpc_interface', ''),
 157             int(tools.config.get('netrpc_port', 8070)))