80ef13612b
- moved directories from src and frontends/src to sat and sat_frontends, which is the recommanded naming convention - move twisted directory to root - removed all hacks from setup.py, and added missing dependencies, it is now clean - use https URL for website in setup.py - removed "Environment :: X11 Applications :: GTK", as wix is deprecated and removed - renamed sat.sh to sat and fixed its installation - added python_requires to specify Python version needed - replaced glib2reactor which use deprecated code by gtk3reactor sat can now be installed directly from virtualenv without using --system-site-packages anymore \o/
249 lines
11 KiB
Python
Executable file
249 lines
11 KiB
Python
Executable file
#!/usr/bin/env python2
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# -*- coding: utf-8 -*-
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# SAT plugin for Pubsub Hooks
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# Copyright (C) 2009-2018 Jérôme Poisson (goffi@goffi.org)
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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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# 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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# 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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from sat.core.i18n import _
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from sat.core.constants import Const as C
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from sat.core import exceptions
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from sat.core.log import getLogger
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from sat.memory import persistent
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from twisted.words.protocols.jabber import jid
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from twisted.internet import defer
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log = getLogger(__name__)
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NS_PUBSUB_HOOK = 'PUBSUB_HOOK'
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PLUGIN_INFO = {
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C.PI_NAME: "PubSub Hook",
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C.PI_IMPORT_NAME: NS_PUBSUB_HOOK,
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C.PI_TYPE: "EXP",
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C.PI_PROTOCOLS: [],
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C.PI_DEPENDENCIES: ["XEP-0060"],
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C.PI_MAIN: "PubsubHook",
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C.PI_HANDLER: "no",
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C.PI_DESCRIPTION: _("""Experimental plugin to launch on action on Pubsub notifications""")
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}
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# python module
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HOOK_TYPE_PYTHON = u'python'
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# python file path
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HOOK_TYPE_PYTHON_FILE = u'python_file'
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# python code directly
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HOOK_TYPE_PYTHON_CODE = u'python_code'
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HOOK_TYPES = (HOOK_TYPE_PYTHON, HOOK_TYPE_PYTHON_FILE, HOOK_TYPE_PYTHON_CODE)
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class PubsubHook(object):
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def __init__(self, host):
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log.info(_(u"PubSub Hook initialization"))
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self.host = host
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self.node_hooks = {} # keep track of the number of hooks per node (for all profiles)
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host.bridge.addMethod("psHookAdd", ".plugin",
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in_sign='ssssbs', out_sign='',
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method=self._addHook
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)
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host.bridge.addMethod("psHookRemove", ".plugin",
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in_sign='sssss', out_sign='i',
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method=self._removeHook
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)
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host.bridge.addMethod("psHookList", ".plugin",
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in_sign='s', out_sign='aa{ss}',
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method=self._listHooks
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)
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@defer.inlineCallbacks
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def profileConnected(self, client):
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hooks = client._hooks = persistent.PersistentBinaryDict(NS_PUBSUB_HOOK, client.profile)
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client._hooks_temporary = {}
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yield hooks.load()
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for node in hooks:
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self._installNodeManager(client, node)
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def profileDisconnected(self, client):
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for node in client._hooks:
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self._removeNodeManager(client, node)
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def _installNodeManager(self, client, node):
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if node in self.node_hooks:
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log.debug(_(u"node manager already set for {node}").format(node=node))
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self.node_hooks[node] += 1
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else:
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# first hook on this node
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self.host.plugins['XEP-0060'].addManagedNode(node, items_cb=self._itemsReceived)
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self.node_hooks[node] = 0
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log.info(_(u"node manager installed on {node}").format(
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node = node))
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def _removeNodeManager(self, client, node):
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try:
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self.node_hooks[node] -= 1
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except KeyError:
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log.error(_(u"trying to remove a {node} without hook").format(node=node))
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else:
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if self.node_hooks[node] == 0:
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del self.node_hooks[node]
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self.host.plugins['XEP-0060'].removeManagedNode(node, self._itemsReceived)
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log.debug(_(u"hook removed"))
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else:
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log.debug(_(u"node still needed for an other hook"))
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def installHook(self, client, service, node, hook_type, hook_arg, persistent):
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if hook_type not in HOOK_TYPES:
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raise exceptions.DataError(_(u'{hook_type} is not handled').format(hook_type=hook_type))
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if hook_type != HOOK_TYPE_PYTHON_FILE:
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raise NotImplementedError(_(u'{hook_type} hook type not implemented yet').format(hook_type=hook_type))
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self._installNodeManager(client, node)
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hook_data = {'service': service,
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'type': hook_type,
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'arg': hook_arg
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}
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if persistent:
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hooks_list = client._hooks.setdefault(node,[])
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hooks_list.append(hook_data)
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client._hooks.force(node)
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else:
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hooks_list = client._hooks_temporary.setdefault(node,[])
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hooks_list.append(hook_data)
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log.info(_(u"{persistent} hook installed on {node} for {profile}").format(
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persistent = _(u'persistent') if persistent else _(u'temporary'),
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node = node,
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profile = client.profile))
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def _itemsReceived(self, client, itemsEvent):
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node = itemsEvent.nodeIdentifier
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for hooks in (client._hooks, client._hooks_temporary):
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if node not in hooks:
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continue
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hooks_list = hooks[node]
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for hook_data in hooks_list[:]:
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if hook_data['service'] != itemsEvent.sender.userhostJID():
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continue
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try:
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callback = hook_data['callback']
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except KeyError:
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# first time we get this hook, we create the callback
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hook_type = hook_data['type']
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try:
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if hook_type == HOOK_TYPE_PYTHON_FILE:
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hook_globals = {}
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execfile(hook_data['arg'], hook_globals)
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callback = hook_globals['hook']
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else:
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raise NotImplementedError(_(u'{hook_type} hook type not implemented yet').format(
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hook_type=hook_type))
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except Exception as e:
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log.warning(_(u"Can't load Pubsub hook at node {node}, it will be removed: {reason}").format(
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node=node, reason=e))
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hooks_list.remove(hook_data)
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continue
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for item in itemsEvent.items:
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try:
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callback(self.host, client, item)
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except Exception as e:
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log.warning(_(u"Error while running Pubsub hook for node {node}: {msg}").format(
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node = node,
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msg = e))
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def _addHook(self, service, node, hook_type, hook_arg, persistent, profile):
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client = self.host.getClient(profile)
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service = jid.JID(service) if service else client.jid.userhostJID()
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return self.addHook(client, service, unicode(node), unicode(hook_type), unicode(hook_arg), persistent)
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def addHook(self, client, service, node, hook_type, hook_arg, persistent):
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r"""Add a hook which will be triggered on a pubsub notification
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@param service(jid.JID): service of the node
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@param node(unicode): Pubsub node
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@param hook_type(unicode): type of the hook, one of:
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- HOOK_TYPE_PYTHON: a python module (must be in path)
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module must have a "hook" method which will be called
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- HOOK_TYPE_PYTHON_FILE: a python file
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file must have a "hook" method which will be called
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- HOOK_TYPE_PYTHON_CODE: direct python code
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/!\ Python hooks will be executed in SàT context,
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with host, client and item as arguments, it means that:
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- they can do whatever they wants, so don't run untrusted hooks
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- they MUST NOT BLOCK, they are run in Twisted async environment and blocking would block whole SàT process
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- item are domish.Element
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@param hook_arg(unicode): argument of the hook, depending on the hook_type
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can be a module path, file path, python code
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"""
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assert service is not None
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return self.installHook(client, service, node, hook_type, hook_arg, persistent)
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def _removeHook(self, service, node, hook_type, hook_arg, profile):
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client = self.host.getClient(profile)
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service = jid.JID(service) if service else client.jid.userhostJID()
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return self.removeHook(client, service, node, hook_type or None, hook_arg or None)
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def removeHook(self, client, service, node, hook_type=None, hook_arg=None):
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"""Remove a persistent or temporaty root
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@param service(jid.JID): service of the node
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@param node(unicode): Pubsub node
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@param hook_type(unicode, None): same as for [addHook]
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match all if None
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@param hook_arg(unicode, None): same as for [addHook]
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match all if None
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@return(int): number of hooks removed
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"""
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removed = 0
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for hooks in (client._hooks, client._hooks_temporary):
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if node in hooks:
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for hook_data in hooks[node]:
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if (service != hook_data[u'service']
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or hook_type is not None and hook_type != hook_data[u'type']
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or hook_arg is not None and hook_arg != hook_data[u'arg']):
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continue
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hooks[node].remove(hook_data)
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removed += 1
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if not hooks[node]:
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# no more hooks, we can remove the node
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del hooks[node]
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self._removeNodeManager(client, node)
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else:
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if hooks == client._hooks:
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hooks.force(node)
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return removed
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def _listHooks(self, profile):
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hooks_list = self.listHooks(self.host.getClient(profile))
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for hook in hooks_list:
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hook[u'service'] = hook[u'service'].full()
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hook[u'persistent'] = C.boolConst(hook[u'persistent'])
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return hooks_list
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def listHooks(self, client):
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"""return list of registered hooks"""
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hooks_list = []
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for hooks in (client._hooks, client._hooks_temporary):
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persistent = hooks is client._hooks
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for node, hooks_data in hooks.iteritems():
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for hook_data in hooks_data:
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hooks_list.append({u'service': hook_data[u'service'],
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u'node': node,
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u'type': hook_data[u'type'],
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u'arg': hook_data[u'arg'],
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u'persistent': persistent
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})
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return hooks_list
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