Mercurial > libervia-backend
annotate sat/plugins/plugin_exp_command_export.py @ 2910:b2f323237fce
jp, plugin merge-requests: used u'' as default for item id in pubsub arguments + fixed some required arguments:
u"" is now used as defaut item id instead of node, as it needs to be serialised anyway. This is temporary solution, as empty string can be used for item id (not forbidden by XEP-0060), but for now this is not handled correctly in jp/SàT (see https://bugs.goffi.org/bugs/view/289). Correct solution will probably need to use a special key in extra to mark empty string in id.
Added/removed some required values for node or item when it made sense.
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Sun, 14 Apr 2019 08:21:51 +0200 |
| parents | 003b8b4b56a7 |
| children | ab2696e34d29 |
| 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) |
| 2771 | 5 # Copyright (C) 2009-2019 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 |
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24 log = getLogger(__name__) |
| 604 | 25 from twisted.words.protocols.jabber import jid |
| 26 from twisted.internet import reactor, protocol | |
| 27 | |
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28 from sat.tools import trigger |
| 604 | 29 from sat.tools.utils import clean_ustr |
| 30 | |
| 31 PLUGIN_INFO = { | |
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32 C.PI_NAME: "Command export plugin", |
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33 C.PI_IMPORT_NAME: "EXP-COMMANS-EXPORT", |
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34 C.PI_TYPE: "EXP", |
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35 C.PI_PROTOCOLS: [], |
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36 C.PI_DEPENDENCIES: [], |
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37 C.PI_MAIN: "CommandExport", |
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38 C.PI_HANDLER: "no", |
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39 C.PI_DESCRIPTION: _("""Implementation of command export"""), |
| 604 | 40 } |
| 41 | |
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42 |
| 604 | 43 class ExportCommandProtocol(protocol.ProcessProtocol): |
| 44 """ Try to register an account with prosody """ | |
| 45 | |
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46 def __init__(self, parent, client, target, options): |
| 604 | 47 self.parent = parent |
| 48 self.target = target | |
| 49 self.options = options | |
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50 self.client = client |
| 604 | 51 |
| 52 def _clean(self, data): | |
| 53 if not data: | |
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54 log.error("data should not be empty !") |
| 604 | 55 return u"" |
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56 decoded = data.decode("utf-8", "ignore")[: -1 if data[-1] == "\n" else None] |
| 604 | 57 return clean_ustr(decoded) |
| 58 | |
| 59 def connectionMade(self): | |
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60 log.info("connectionMade :)") |
| 604 | 61 |
| 62 def outReceived(self, data): | |
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63 self.client.sendMessage(self.target, {"": self._clean(data)}, no_trigger=True) |
| 604 | 64 |
| 65 def errReceived(self, data): | |
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66 self.client.sendMessage(self.target, {"": self._clean(data)}, no_trigger=True) |
| 604 | 67 |
| 68 def processEnded(self, reason): | |
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69 log.info(u"process finished: %d" % (reason.value.exitCode,)) |
| 604 | 70 self.parent.removeProcess(self.target, self) |
| 71 | |
| 72 def write(self, message): | |
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73 self.transport.write(message.encode("utf-8")) |
| 604 | 74 |
| 75 def boolOption(self, key): | |
| 76 """ Get boolean value from options | |
| 77 @param key: name of the option | |
| 78 @return: True if key exists and set to "true" (case insensitive), | |
| 79 False in all other cases """ | |
| 80 value = self.options.get(key, "") | |
| 81 return value.lower() == "true" | |
| 82 | |
| 83 | |
| 84 class CommandExport(object): | |
| 85 """Command export plugin: export a command to an entity""" | |
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86 |
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87 # XXX: This plugin can be potentially dangerous if we don't trust entities linked |
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88 # this is specially true if we have other triggers. |
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89 # FIXME: spawned should be a client attribute, not a class one |
| 604 | 90 |
| 91 def __init__(self, host): | |
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92 log.info(_("Plugin command export initialization")) |
| 604 | 93 self.host = host |
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94 self.spawned = {} # key = entity |
| 604 | 95 host.trigger.add("MessageReceived", self.MessageReceivedTrigger, priority=10000) |
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96 host.bridge.addMethod( |
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97 "exportCommand", |
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98 ".plugin", |
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99 in_sign="sasasa{ss}s", |
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100 out_sign="", |
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101 method=self._exportCommand, |
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102 ) |
| 604 | 103 |
| 104 def removeProcess(self, entity, process): | |
| 105 """ Called when the process is finished | |
| 106 @param entity: jid.JID attached to the process | |
| 107 @param process: process to remove""" | |
| 108 try: | |
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109 processes_set = self.spawned[(entity, process.client.profile)] |
| 604 | 110 processes_set.discard(process) |
| 111 if not processes_set: | |
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112 del (self.spawned[(entity, process.client.profile)]) |
| 604 | 113 except ValueError: |
| 114 pass | |
| 115 | |
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116 def MessageReceivedTrigger(self, client, message_elt, post_treat): |
| 604 | 117 """ Check if source is linked and repeat message, else do nothing """ |
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118 from_jid = jid.JID(message_elt["from"]) |
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119 spawned_key = (from_jid.userhostJID(), client.profile) |
| 604 | 120 |
| 121 if spawned_key in self.spawned: | |
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122 try: |
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123 body = message_elt.elements(C.NS_CLIENT, "body").next() |
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124 except StopIteration: |
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125 # do not block message without body (chat state notification...) |
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126 return True |
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127 |
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128 mess_data = unicode(body) + "\n" |
| 604 | 129 processes_set = self.spawned[spawned_key] |
| 130 _continue = False | |
| 131 exclusive = False | |
| 132 for process in processes_set: | |
| 133 process.write(mess_data) | |
| 134 _continue &= process.boolOption("continue") | |
| 135 exclusive |= process.boolOption("exclusive") | |
| 136 if exclusive: | |
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137 raise trigger.SkipOtherTriggers |
| 604 | 138 return _continue |
| 139 | |
| 140 return True | |
| 141 | |
| 142 def _exportCommand(self, command, args, targets, options, profile_key): | |
| 143 """ Export a commands to authorised targets | |
| 144 @param command: full path of the command to execute | |
| 145 @param args: list of arguments, with command name as first one | |
| 146 @param targets: list of allowed entities | |
| 147 @param options: export options, a dict which can have the following keys ("true" to set booleans): | |
| 148 - exclusive: if set, skip all other triggers | |
| 149 - loop: if set, restart the command once terminated #TODO | |
| 150 - pty: if set, launch in a pseudo terminal | |
| 151 - continue: continue normal MessageReceived handling | |
| 152 """ | |
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153 client = self.host.getClient(profile_key) |
| 604 | 154 for target in targets: |
| 155 try: | |
| 156 _jid = jid.JID(target) | |
| 157 if not _jid.user or not _jid.host: | |
| 158 raise jid.InvalidFormat | |
| 159 _jid = _jid.userhostJID() | |
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160 except (RuntimeError, jid.InvalidFormat, AttributeError): |
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161 log.info(u"invalid target ignored: %s" % (target,)) |
| 604 | 162 continue |
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163 process_prot = ExportCommandProtocol(self, client, _jid, options) |
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164 self.spawned.setdefault((_jid, client.profile), set()).add(process_prot) |
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165 reactor.spawnProcess( |
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166 process_prot, command, args, usePTY=process_prot.boolOption("pty") |
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167 ) |