Mercurial > libervia-backend
annotate src/plugins/plugin_exp_command_export.py @ 2221:a6c9bc4d1de0
jp (pubsub/node): added create and delete commands
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Mon, 03 Apr 2017 00:23:01 +0200 |
| parents | 33c8c4973743 |
| children | 074c2f157dc9 |
| rev | line source |
|---|---|
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1 #!/usr/bin/env python2 |
| 604 | 2 # -*- coding: utf-8 -*- |
| 3 | |
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4 # SAT plugin to export commands (experimental) |
| 1766 | 5 # Copyright (C) 2009-2016 Jérôme Poisson (goffi@goffi.org) |
| 604 | 6 |
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7 # This program is free software: you can redistribute it and/or modify |
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8 # it under the terms of the GNU Affero General Public License as published by |
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9 # the Free Software Foundation, either version 3 of the License, or |
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10 # (at your option) any later version. |
| 604 | 11 |
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12 # This program is distributed in the hope that it will be useful, |
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 # GNU Affero General Public License for more details. |
| 604 | 16 |
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17 # You should have received a copy of the GNU Affero General Public License |
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 604 | 19 |
| 771 | 20 from sat.core.i18n import _ |
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21 from sat.core.constants import Const as C |
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22 from sat.core.log import getLogger |
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23 log = getLogger(__name__) |
| 604 | 24 from twisted.words.protocols.jabber import jid |
| 25 from twisted.internet import reactor, protocol | |
| 26 | |
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27 from sat.tools import trigger |
| 604 | 28 from sat.tools.utils import clean_ustr |
| 29 | |
| 30 PLUGIN_INFO = { | |
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31 C.PI_NAME: "Command export plugin", |
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32 C.PI_IMPORT_NAME: "EXP-COMMANS-EXPORT", |
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33 C.PI_TYPE: "EXP", |
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34 C.PI_PROTOCOLS: [], |
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35 C.PI_DEPENDENCIES: [], |
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36 C.PI_MAIN: "CommandExport", |
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37 C.PI_HANDLER: "no", |
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38 C.PI_DESCRIPTION: _("""Implementation of command export""") |
| 604 | 39 } |
| 40 | |
| 41 class ExportCommandProtocol(protocol.ProcessProtocol): | |
| 42 """ Try to register an account with prosody """ | |
| 43 | |
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44 def __init__(self, parent, client, target, options): |
| 604 | 45 self.parent = parent |
| 46 self.target = target | |
| 47 self.options = options | |
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48 self.client = client |
| 604 | 49 |
| 50 def _clean(self, data): | |
| 51 if not data: | |
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52 log.error ("data should not be empty !") |
| 604 | 53 return u"" |
| 54 decoded = data.decode('utf-8', 'ignore')[:-1 if data[-1] == '\n' else None] | |
| 55 return clean_ustr(decoded) | |
| 56 | |
| 57 def connectionMade(self): | |
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58 log.info("connectionMade :)") |
| 604 | 59 |
| 60 def outReceived(self, data): | |
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61 self.client.sendMessage(self.target, {'': self._clean(data)}, no_trigger=True) |
| 604 | 62 |
| 63 def errReceived(self, data): | |
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64 self.client.sendMessage(self.target, {'': self._clean(data)}, no_trigger=True) |
| 604 | 65 |
| 66 def processEnded(self, reason): | |
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67 log.info (u"process finished: %d" % (reason.value.exitCode,)) |
| 604 | 68 self.parent.removeProcess(self.target, self) |
| 69 | |
| 70 def write(self, message): | |
| 71 self.transport.write(message.encode('utf-8')) | |
| 72 | |
| 73 def boolOption(self, key): | |
| 74 """ Get boolean value from options | |
| 75 @param key: name of the option | |
| 76 @return: True if key exists and set to "true" (case insensitive), | |
| 77 False in all other cases """ | |
| 78 value = self.options.get(key, "") | |
| 79 return value.lower() == "true" | |
| 80 | |
| 81 | |
| 82 class CommandExport(object): | |
| 83 """Command export plugin: export a command to an entity""" | |
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84 # XXX: This plugin can be potentially dangerous if we don't trust entities linked |
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85 # this is specially true if we have other triggers. |
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86 # FIXME: spawned should be a client attribute, not a class one |
| 604 | 87 |
| 88 def __init__(self, host): | |
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89 log.info(_("Plugin command export initialization")) |
| 604 | 90 self.host = host |
| 91 self.spawned = {} # key = entity | |
| 92 host.trigger.add("MessageReceived", self.MessageReceivedTrigger, priority=10000) | |
| 93 host.bridge.addMethod("exportCommand", ".plugin", in_sign='sasasa{ss}s', out_sign='', method=self._exportCommand) | |
| 94 | |
| 95 def removeProcess(self, entity, process): | |
| 96 """ Called when the process is finished | |
| 97 @param entity: jid.JID attached to the process | |
| 98 @param process: process to remove""" | |
| 99 try: | |
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100 processes_set = self.spawned[(entity, process.client.profile)] |
| 604 | 101 processes_set.discard(process) |
| 102 if not processes_set: | |
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103 del(self.spawned[(entity, process.client.profile)]) |
| 604 | 104 except ValueError: |
| 105 pass | |
| 106 | |
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107 def MessageReceivedTrigger(self, client, message_elt, post_treat): |
| 604 | 108 """ Check if source is linked and repeat message, else do nothing """ |
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109 from_jid = jid.JID(message_elt["from"]) |
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110 spawned_key = (from_jid.userhostJID(), client.profile) |
| 604 | 111 |
| 112 if spawned_key in self.spawned: | |
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113 try: |
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114 body = message_elt.elements(C.NS_CLIENT, 'body').next() |
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115 except StopIteration: |
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116 # do not block message without body (chat state notification...) |
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117 return True |
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118 |
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119 mess_data = unicode(body) + '\n' |
| 604 | 120 processes_set = self.spawned[spawned_key] |
| 121 _continue = False | |
| 122 exclusive = False | |
| 123 for process in processes_set: | |
| 124 process.write(mess_data) | |
| 125 _continue &= process.boolOption("continue") | |
| 126 exclusive |= process.boolOption("exclusive") | |
| 127 if exclusive: | |
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128 raise trigger.SkipOtherTriggers |
| 604 | 129 return _continue |
| 130 | |
| 131 return True | |
| 132 | |
| 133 def _exportCommand(self, command, args, targets, options, profile_key): | |
| 134 """ Export a commands to authorised targets | |
| 135 @param command: full path of the command to execute | |
| 136 @param args: list of arguments, with command name as first one | |
| 137 @param targets: list of allowed entities | |
| 138 @param options: export options, a dict which can have the following keys ("true" to set booleans): | |
| 139 - exclusive: if set, skip all other triggers | |
| 140 - loop: if set, restart the command once terminated #TODO | |
| 141 - pty: if set, launch in a pseudo terminal | |
| 142 - continue: continue normal MessageReceived handling | |
| 143 """ | |
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144 client = self.host.getClient(profile_key) |
| 604 | 145 for target in targets: |
| 146 try: | |
| 147 _jid = jid.JID(target) | |
| 148 if not _jid.user or not _jid.host: | |
| 149 raise jid.InvalidFormat | |
| 150 _jid = _jid.userhostJID() | |
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151 except (RuntimeError, jid.InvalidFormat, AttributeError): |
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152 log.info(u"invalid target ignored: %s" % (target,)) |
| 604 | 153 continue |
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154 process_prot = ExportCommandProtocol(self, client, _jid, options) |
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155 self.spawned.setdefault((_jid, client.profile),set()).add(process_prot) |
| 604 | 156 reactor.spawnProcess(process_prot, command, args, usePTY = process_prot.boolOption('pty')) |
| 157 |