Mercurial > libervia-backend
view libervia/backend/plugins/plugin_exp_command_export.py @ 4294:a0ed5c976bf8 default tip @
component conferences, plugin XEP-0167, XEP-0298: add stream user metadata:
A/V conference now adds user metadata about the stream it is forwarding through XEP-0298.
This is parsed and added to metadata during confirmation on client side.
rel 448
author | Goffi <goffi@goffi.org> |
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date | Tue, 06 Aug 2024 23:43:11 +0200 |
parents | 0d7bb4df2343 |
children |
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#!/usr/bin/env python3 # SAT plugin to export commands (experimental) # Copyright (C) 2009-2021 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 libervia.backend.core.i18n import _ from libervia.backend.core.constants import Const as C from libervia.backend.core.log import getLogger log = getLogger(__name__) from twisted.words.protocols.jabber import jid from twisted.internet import reactor, protocol from libervia.backend.tools import trigger from libervia.backend.tools.utils import clean_ustr PLUGIN_INFO = { C.PI_NAME: "Command export plugin", C.PI_IMPORT_NAME: "EXP-COMMANS-EXPORT", C.PI_TYPE: "EXP", C.PI_PROTOCOLS: [], C.PI_DEPENDENCIES: [], C.PI_MAIN: "CommandExport", C.PI_HANDLER: "no", C.PI_DESCRIPTION: _("""Implementation of command export"""), } class ExportCommandProtocol(protocol.ProcessProtocol): """Try to register an account with prosody""" def __init__(self, parent, client, target, options): self.parent = parent self.target = target self.options = options self.client = client def _clean(self, data): if not data: log.error("data should not be empty !") return "" 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.client.sendMessage(self.target, {"": self._clean(data)}, no_trigger=True) def errReceived(self, data): self.client.sendMessage(self.target, {"": self._clean(data)}, no_trigger=True) def processEnded(self, reason): log.info("process finished: %d" % (reason.value.exitCode,)) self.parent.removeProcess(self.target, self) def write(self, message): self.transport.write(message.encode("utf-8")) def bool_option(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. # FIXME: spawned should be a client attribute, not a class one def __init__(self, host): log.info(_("Plugin command export initialization")) self.host = host self.spawned = {} # key = entity host.trigger.add( "message_received", self.message_received_trigger, priority=10000 ) host.bridge.add_method( "command_export", ".plugin", in_sign="sasasa{ss}s", out_sign="", method=self._export_command, ) 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.client.profile)] processes_set.discard(process) if not processes_set: del self.spawned[(entity, process.client.profile)] except ValueError: pass def message_received_trigger(self, client, message_elt, post_treat): """Check if source is linked and repeat message, else do nothing""" from_jid = jid.JID(message_elt["from"]) spawned_key = (from_jid.userhostJID(), client.profile) if spawned_key in self.spawned: try: body = next(message_elt.elements(C.NS_CLIENT, "body")) except StopIteration: # do not block message without body (chat state notification...) return True mess_data = str(body) + "\n" processes_set = self.spawned[spawned_key] _continue = False exclusive = False for process in processes_set: process.write(mess_data) _continue &= process.bool_option("continue") exclusive |= process.bool_option("exclusive") if exclusive: raise trigger.SkipOtherTriggers return _continue return True def _export_command(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 message_received handling """ client = self.host.get_client(profile_key) for target in targets: try: _jid = jid.JID(target) if not _jid.user or not _jid.host: raise jid.InvalidFormat _jid = _jid.userhostJID() except (RuntimeError, jid.InvalidFormat, AttributeError): log.info("invalid target ignored: %s" % (target,)) continue process_prot = ExportCommandProtocol(self, client, _jid, options) self.spawned.setdefault((_jid, client.profile), set()).add(process_prot) reactor.spawnProcess( process_prot, command, args, usePTY=process_prot.bool_option("pty") )