241 lines
7.6 KiB
Python
241 lines
7.6 KiB
Python
# -*- coding: utf-8 -*-
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# Nemubot is a modulable IRC bot, built around XML configuration files.
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# Copyright (C) 2012 Mercier Pierre-Olivier
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import logging
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import queue
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import re
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import threading
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import traceback
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import sys
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import bot
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from server.DCC import DCC
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from message import Message
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from response import Response
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import server
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logger = logging.getLogger("nemubot.consumer")
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class MessageConsumer:
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"""Store a message before treating"""
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def __init__(self, srv, msg):
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self.srv = srv
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self.msgs = [ msg ]
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self.responses = None
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def first_treat(self, msg):
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"""Qualify a new message/response
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Argument:
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msg -- The Message or Response to qualify
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"""
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if not hasattr(msg, "qual") or msg.qual is None:
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# Assume this is a message with no particulariry
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msg.qual = "def"
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# Define the source server if not already done
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if not hasattr(msg, "server") or msg.server is None:
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msg.server = self.srv.id
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if isinstance(msg, Message):
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if msg.cmd == "PRIVMSG" or msg.cmd == "NOTICE":
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msg.is_owner = (msg.nick == self.srv.owner)
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msg.private = msg.private or (len(msg.receivers) == 1 and msg.receivers[0] == self.srv.nick)
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if msg.private:
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msg.qual = "ask"
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# Remove nemubot:
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if msg.qual != "cmd" and msg.text.find(self.srv.nick) == 0 and len(msg.text) > len(self.srv.nick) + 2 and msg.text[len(self.srv.nick)] == ":":
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msg.text = msg.text[len(self.srv.nick) + 1:].strip()
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msg.qual = "ask"
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return msg
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def pre_treat(self, hm):
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"""Modify input Messages
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Arguments:
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hm -- Hooks manager
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"""
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new_msg = list()
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new_msg += self.msgs
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self.msgs = list()
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while len(new_msg) > 0:
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msg = new_msg.pop(0)
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for h in hm.get_hooks("pre", msg.cmd, msg.qual):
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if h.match(message=msg, server=self.srv):
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res = h.run(msg)
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if isinstance(res, list):
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for i in xrange(len(res)):
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if res[i] == msg:
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res.pop(i)
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break
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new_msg += res
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elif res is not None and res != msg:
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new_msg.append(res)
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msg = None
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break
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elif res is None or res == False:
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msg = None
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break
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if msg is not None:
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self.msgs.append(msg)
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def in_treat(self, hm):
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"""Treat Messages and store responses
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Arguments:
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hm -- Hooks manager
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"""
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self.responses = list()
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for msg in self.msgs:
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for h in hm.get_hooks("in", msg.cmd, msg.qual):
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if h.match(message=msg, server=self.srv):
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res = h.run(msg)
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if isinstance(res, list):
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for r in res:
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if isinstance(r, Response):
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r.set_sender(msg.sender)
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self.responses += res
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elif res is not None:
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if isinstance(res, Response):
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res.set_sender(msg.sender)
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self.responses.append(res)
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def post_treat(self, hm):
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"""Modify output Messages
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Arguments:
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hm -- Hooks manager
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"""
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new_msg = list()
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new_msg += self.responses
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self.responses = list()
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while len(new_msg) > 0:
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msg = self.first_treat(new_msg.pop(0))
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for h in hm.get_hooks("post"):
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if h.match(message=msg, server=self.srv):
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res = h.run(msg)
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if isinstance(res, list):
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for i in xrange(len(res)):
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if res[i] == msg:
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res.pop(i)
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break
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new_msg += res
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elif res is not None and res != msg:
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new_msg.append(res)
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msg = None
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break
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elif res is None or res == False:
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msg = None
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break
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if msg is not None:
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self.responses.append(msg)
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def run(self, context):
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"""Create, parse and treat the message"""
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try:
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for msg in self.msgs:
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self.first_treat(msg)
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# Run pre-treatment: from Message to [ Message ]
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self.pre_treat(context.hooks)
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# Run in-treatment: from Message to [ Response ]
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if len(self.msgs) > 0:
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self.in_treat(context.hooks)
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# Run post-treatment: from Response to [ Response ]
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if self.responses is not None and len(self.responses) > 0:
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self.post_treat(context.hooks)
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except:
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logger.exception("Error occurred during the processing of the message: %s", self.msgs[0].raw)
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for res in self.responses:
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to_server = None
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if res.server is None:
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to_server = self.srv
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res.server = self.srv.id
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elif isinstance(res.server, str) and res.server in context.servers:
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to_server = context.servers[res.server]
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if to_server is None:
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logger.error("The server defined in this response doesn't "
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"exist: %s", res.server)
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continue
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# Sent the message only if treat_post authorize it
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to_server.send_response(res)
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class EventConsumer:
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"""Store a event before treating"""
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def __init__(self, evt, timeout=20):
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self.evt = evt
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self.timeout = timeout
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def run(self, context):
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try:
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self.evt.check()
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except:
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logger.exception("Error during event end")
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# Reappend the event in the queue if it has next iteration
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if self.evt.next is not None:
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context.add_event(self.evt, eid=self.evt.id)
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# Or remove reference of this event
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elif hasattr(self.evt, "module_src") and self.evt.module_src is not None:
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self.evt.module_src.REGISTERED_EVENTS.remove(self.evt.id)
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class Consumer(threading.Thread):
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"""Dequeue and exec requested action"""
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def __init__(self, context):
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self.context = context
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self.stop = False
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threading.Thread.__init__(self)
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def run(self):
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try:
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while not self.stop:
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stm = self.context.cnsr_queue.get(True, 20)
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stm.run(self.context)
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self.context.cnsr_queue.task_done()
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except queue.Empty:
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pass
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finally:
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self.context.cnsr_thrd_size -= 2
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self.context.cnsr_thrd.remove(self)
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