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nemubot/hooks.py

138 lines
5.0 KiB
Python

# -*- coding: utf-8 -*-
# Nemubot is a modulable IRC bot, built around XML configuration files.
# Copyright (C) 2012 Mercier Pierre-Olivier
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from response import Response
class MessagesHook:
def __init__(self, context):
self.context = context
# Store specials hook
self.all_pre = list() # Treated before any parse
#self.all_post = list() # Treated before send message to user
# Store direct hook
self.cmd_hook = dict()
self.ask_hook = dict()
self.msg_hook = dict()
# Store regexp hook
self.cmd_rgxp = list()
self.ask_rgxp = list()
self.msg_rgxp = list()
# Store default hooks (after other hooks if no match)
self.cmd_default = list()
self.ask_default = list()
self.msg_default = list()
def add_hook(self, store, hook, module_src=None):
"""Insert in the right place a hook into the given store"""
if module_src is None:
print ("\033[1;35mWarning:\033[0m No source module was passed to "
"add_hook function, please fix it in order to be "
"compatible with unload feature")
if store in self.context.hooks_cache:
del self.context.hooks_cache[store]
if not hasattr(self, store):
print ("\033[1;35mWarning:\033[0m unrecognized hook store")
return
attr = getattr(self, store)
if isinstance(attr, dict) and hook.name is not None:
if hook.name not in attr:
attr[hook.name] = list()
attr[hook.name].append(hook)
elif isinstance(attr, list):
attr.append(hook)
else:
print ("\033[1;32mWarning:\033[0m unrecognized hook store type")
return
if module_src is not None:
module_src.REGISTERED_HOOKS.append((store, hook))
def register_hook_attributes(self, store, module, node):
if node.hasAttribute("name"):
self.add_hook(store + "_hook", Hook(getattr(module, node["call"]),
node["name"]),
module)
elif node.hasAttribute("regexp"):
self.add_hook(store + "_rgxp", Hook(getattr(module, node["call"]),
None, None, node["regexp"]),
module)
def register_hook(self, module, node):
"""Create a hook from configuration node"""
if node.name == "message" and node.hasAttribute("type"):
if node["type"] == "cmd" or node["type"] == "all":
self.register_hook_attributes("cmd", module, node)
if node["type"] == "ask" or node["type"] == "all":
self.register_hook_attributes("ask", module, node)
if (node["type"] == "msg" or node["type"] == "answer" or
node["type"] == "all"):
self.register_hook_attributes("answer", module, node)
def del_hook(self, store, hook):
"""Remove a registered hook from a given store"""
if store in self.context.hooks_cache:
del self.context.hooks_cache[store]
if not hasattr(self, store):
print ("Warning: unrecognized hook store type")
return
attr = getattr(self, store)
if isinstance(attr, dict) and hook.name is not None:
if hook.name in attr:
attr[hook.name].remove(hook)
else:
attr.remove(hook)
class Hook:
"""Class storing hook informations"""
def __init__(self, call, name=None, data=None, regexp=None, channels=list()):
self.name = name
self.call = call
self.regexp = regexp
self.data = data
self.times = -1
self.channels = channels
def is_matching(self, strcmp, channel):
"""Test if the current hook correspond to the message"""
return (len(self.channel) <= 0 or channel in self.channels) and (
(self.name is not None and strcmp == self.name) or (
self.regexp is not None and re.match(self.regexp, strcmp)))
def run(self, msg):
"""Run the hook"""
if self.times != 0:
self.times -= 1
if self.data is None:
return self.call(msg)
elif isinstance(self.data, dict):
return self.call(msg, **self.data)
else:
return self.call(msg, self.data)