Mercurial > libervia-backend
view src/plugins/plugin_exp_command_export.py @ 1618:0de5f210fe56
plugin XEP-0300: implemented hashing:
- parseHashElt do what it says
- calculateHashElt can calculate a whole hash in a non-blocking way
- or getHasher can be used for progressive hashing
- getBestPeerAlgo return the best available hashing algorithm of an entity
author | Goffi <goffi@goffi.org> |
---|---|
date | Tue, 17 Nov 2015 19:48:19 +0100 |
parents | 3265a2639182 |
children | 22a8e770cb7b |
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#!/usr/bin/python # -*- coding: utf-8 -*- # SAT plugin to export commands (experimental) # Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Jérôme Poisson (goffi@goffi.org) # 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 sat.core.i18n import _ from sat.core.log import getLogger log = getLogger(__name__) from twisted.words.protocols.jabber import jid from twisted.internet import reactor, protocol from sat.tools import trigger from sat.tools.utils import clean_ustr PLUGIN_INFO = { "name": "Command export plugin", "import_name": "EXP-COMMANS-EXPORT", "type": "EXP", "protocols": [], "dependencies": [], "main": "CommandExport", "handler": "no", "description": _("""Implementation of command export""") } class ExportCommandProtocol(protocol.ProcessProtocol): """ Try to register an account with prosody """ def __init__(self, parent, target, options, profile): self.parent = parent self.target = target self.options = options self.profile = profile def _clean(self, data): if not data: log.error ("data should not be empty !") return u"" decoded = data.decode('utf-8', 'ignore')[:-1 if data[-1] == '\n' else None] return clean_ustr(decoded) def connectionMade(self): log.info("connectionMade :)") def outReceived(self, data): self.parent.host.sendMessage(self.target, self._clean(data), no_trigger=True, profile_key=self.profile) def errReceived(self, data): self.parent.host.sendMessage(self.target, self._clean(data), no_trigger=True, profile_key=self.profile) def processEnded(self, reason): log.info (u"process finished: %d" % (reason.value.exitCode,)) self.parent.removeProcess(self.target, self) def write(self, message): self.transport.write(message.encode('utf-8')) def boolOption(self, key): """ Get boolean value from options @param key: name of the option @return: True if key exists and set to "true" (case insensitive), False in all other cases """ value = self.options.get(key, "") return value.lower() == "true" class CommandExport(object): """Command export plugin: export a command to an entity""" #XXX: This plugin can be potentially dangerous if we don't trust entities linked # this is specially true if we have other triggers. def __init__(self, host): log.info(_("Plugin command export initialization")) self.host = host self.spawned = {} # key = entity host.trigger.add("MessageReceived", self.MessageReceivedTrigger, priority=10000) host.bridge.addMethod("exportCommand", ".plugin", in_sign='sasasa{ss}s', out_sign='', method=self._exportCommand) def removeProcess(self, entity, process): """ Called when the process is finished @param entity: jid.JID attached to the process @param process: process to remove""" try: processes_set = self.spawned[(entity, process.profile)] processes_set.discard(process) if not processes_set: del(self.spawned[(entity, process.profile)]) except ValueError: pass def MessageReceivedTrigger(self, message, post_treat, profile): """ Check if source is linked and repeat message, else do nothing """ from_jid = jid.JID(message["from"]) spawned_key = (from_jid.userhostJID(), profile) try: body = [e for e in message.elements() if e.name == 'body'][0] except IndexError: # do not block message without body (chat state notification...) log.warning("No body element found in message, following normal behaviour") return True mess_data = unicode(body) + '\n' if spawned_key in self.spawned: processes_set = self.spawned[spawned_key] _continue = False exclusive = False for process in processes_set: process.write(mess_data) _continue &= process.boolOption("continue") exclusive |= process.boolOption("exclusive") if exclusive: raise trigger.SkipOtherTriggers return _continue return True def _exportCommand(self, command, args, targets, options, profile_key): """ Export a commands to authorised targets @param command: full path of the command to execute @param args: list of arguments, with command name as first one @param targets: list of allowed entities @param options: export options, a dict which can have the following keys ("true" to set booleans): - exclusive: if set, skip all other triggers - loop: if set, restart the command once terminated #TODO - pty: if set, launch in a pseudo terminal - continue: continue normal MessageReceived handling """ profile = self.host.memory.getProfileName(profile_key) if not profile: log.warning(u"Unknown profile [%s]" % (profile,)) return for target in targets: try: _jid = jid.JID(target) if not _jid.user or not _jid.host: raise jid.InvalidFormat _jid = _jid.userhostJID() except (jid.InvalidFormat, RuntimeError): log.info(u"invalid target ignored: %s" % (target,)) continue process_prot = ExportCommandProtocol(self, _jid, options, profile) self.spawned.setdefault((_jid, profile),set()).add(process_prot) reactor.spawnProcess(process_prot, command, args, usePTY = process_prot.boolOption('pty'))