Mercurial > libervia-backend
annotate src/plugins/plugin_exp_command_export.py @ 633:6a29a4d574bd
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| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Sun, 08 Sep 2013 18:05:19 +0200 |
| parents | 84a6e83157c2 |
| children | 7ea6d5a86e58 |
| rev | line source |
|---|---|
| 604 | 1 #!/usr/bin/python |
| 2 # -*- coding: utf-8 -*- | |
| 3 | |
|
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84a6e83157c2
fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents:
604
diff
changeset
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4 # SAT plugin to export commands (experimental) |
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84a6e83157c2
fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents:
604
diff
changeset
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5 # Copyright (C) 2009, 2010, 2011, 2012, 2013 Jérôme Poisson (goffi@goffi.org) |
| 604 | 6 |
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84a6e83157c2
fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents:
604
diff
changeset
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7 # This program is free software: you can redistribute it and/or modify |
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84a6e83157c2
fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents:
604
diff
changeset
|
8 # it under the terms of the GNU Affero General Public License as published by |
|
84a6e83157c2
fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents:
604
diff
changeset
|
9 # the Free Software Foundation, either version 3 of the License, or |
|
84a6e83157c2
fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents:
604
diff
changeset
|
10 # (at your option) any later version. |
| 604 | 11 |
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609
84a6e83157c2
fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents:
604
diff
changeset
|
12 # This program is distributed in the hope that it will be useful, |
|
84a6e83157c2
fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents:
604
diff
changeset
|
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
84a6e83157c2
fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents:
604
diff
changeset
|
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
84a6e83157c2
fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents:
604
diff
changeset
|
15 # GNU Affero General Public License for more details. |
| 604 | 16 |
|
609
84a6e83157c2
fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents:
604
diff
changeset
|
17 # You should have received a copy of the GNU Affero General Public License |
|
84a6e83157c2
fixed licences in docstrings (they are now in comments)
Goffi <goffi@goffi.org>
parents:
604
diff
changeset
|
18 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 604 | 19 |
| 20 from logging import debug, info, warning, error | |
| 21 from twisted.words.protocols.jabber import jid | |
| 22 from twisted.internet import reactor, protocol | |
| 23 | |
| 24 from sat.tools.misc import SkipOtherTriggers | |
| 25 from sat.tools.utils import clean_ustr | |
| 26 | |
| 27 PLUGIN_INFO = { | |
| 28 "name": "Command export plugin", | |
| 29 "import_name": "EXP-COMMANS-EXPORT", | |
| 30 "type": "EXP", | |
| 31 "protocols": [], | |
| 32 "dependencies": [], | |
| 33 "main": "CommandExport", | |
| 34 "handler": "no", | |
| 35 "description": _("""Implementation of command export""") | |
| 36 } | |
| 37 | |
| 38 class ExportCommandProtocol(protocol.ProcessProtocol): | |
| 39 """ Try to register an account with prosody """ | |
| 40 | |
| 41 def __init__(self, parent, target, options, profile): | |
| 42 self.parent = parent | |
| 43 self.target = target | |
| 44 self.options = options | |
| 45 self.profile = profile | |
| 46 | |
| 47 def _clean(self, data): | |
| 48 if not data: | |
| 49 error ("data should not be empty !") | |
| 50 return u"" | |
| 51 decoded = data.decode('utf-8', 'ignore')[:-1 if data[-1] == '\n' else None] | |
| 52 return clean_ustr(decoded) | |
| 53 | |
| 54 def connectionMade(self): | |
| 55 info("connectionMade :)") | |
| 56 | |
| 57 def outReceived(self, data): | |
| 58 self.parent.host.sendMessage(self.target, self._clean(data), no_trigger=True, profile_key=self.profile) | |
| 59 | |
| 60 def errReceived(self, data): | |
| 61 self.parent.host.sendMessage(self.target, self._clean(data), no_trigger=True, profile_key=self.profile) | |
| 62 | |
| 63 def processEnded(self, reason): | |
| 64 info (u"process finished: %d" % (reason.value.exitCode,)) | |
| 65 self.parent.removeProcess(self.target, self) | |
| 66 | |
| 67 def write(self, message): | |
| 68 self.transport.write(message.encode('utf-8')) | |
| 69 | |
| 70 def boolOption(self, key): | |
| 71 """ Get boolean value from options | |
| 72 @param key: name of the option | |
| 73 @return: True if key exists and set to "true" (case insensitive), | |
| 74 False in all other cases """ | |
| 75 value = self.options.get(key, "") | |
| 76 return value.lower() == "true" | |
| 77 | |
| 78 | |
| 79 class CommandExport(object): | |
| 80 """Command export plugin: export a command to an entity""" | |
| 81 #XXX: This plugin can be potentially dangerous if we don't trust entities linked | |
| 82 # this is specially true if we have other triggers. | |
| 83 | |
| 84 def __init__(self, host): | |
| 85 info(_("Plugin command export initialization")) | |
| 86 self.host = host | |
| 87 self.spawned = {} # key = entity | |
| 88 host.trigger.add("MessageReceived", self.MessageReceivedTrigger, priority=10000) | |
| 89 host.bridge.addMethod("exportCommand", ".plugin", in_sign='sasasa{ss}s', out_sign='', method=self._exportCommand) | |
| 90 | |
| 91 def removeProcess(self, entity, process): | |
| 92 """ Called when the process is finished | |
| 93 @param entity: jid.JID attached to the process | |
| 94 @param process: process to remove""" | |
| 95 try: | |
| 96 processes_set = self.spawned[(entity, process.profile)] | |
| 97 processes_set.discard(process) | |
| 98 if not processes_set: | |
| 99 del(self.spawned[(entity, process.profile)]) | |
| 100 except ValueError: | |
| 101 pass | |
| 102 | |
| 103 def MessageReceivedTrigger(self, message, profile): | |
| 104 """ Check if source is linked and repeat message, else do nothing """ | |
| 105 from_jid = jid.JID(message["from"]) | |
| 106 spawned_key = (from_jid.userhostJID(), profile) | |
| 107 try: | |
| 108 body = [e for e in message.elements() if e.name == 'body'][0] | |
| 109 except IndexError: | |
| 110 warning("Received message without body") | |
| 111 return False | |
| 112 | |
| 113 mess_data = unicode(body) + '\n' | |
| 114 | |
| 115 if spawned_key in self.spawned: | |
| 116 processes_set = self.spawned[spawned_key] | |
| 117 _continue = False | |
| 118 exclusive = False | |
| 119 for process in processes_set: | |
| 120 process.write(mess_data) | |
| 121 _continue &= process.boolOption("continue") | |
| 122 exclusive |= process.boolOption("exclusive") | |
| 123 if exclusive: | |
| 124 raise SkipOtherTriggers | |
| 125 return _continue | |
| 126 | |
| 127 return True | |
| 128 | |
| 129 def _exportCommand(self, command, args, targets, options, profile_key): | |
| 130 """ Export a commands to authorised targets | |
| 131 @param command: full path of the command to execute | |
| 132 @param args: list of arguments, with command name as first one | |
| 133 @param targets: list of allowed entities | |
| 134 @param options: export options, a dict which can have the following keys ("true" to set booleans): | |
| 135 - exclusive: if set, skip all other triggers | |
| 136 - loop: if set, restart the command once terminated #TODO | |
| 137 - pty: if set, launch in a pseudo terminal | |
| 138 - continue: continue normal MessageReceived handling | |
| 139 """ | |
| 140 profile = self.host.memory.getProfileName(profile_key) | |
| 141 if not profile: | |
| 142 warning("Unknown profile [%s]" % (profile,)) | |
| 143 return | |
| 144 | |
| 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() | |
| 151 except (jid.InvalidFormat, RuntimeError): | |
| 152 info(u"invalid target ignored: %s" % (target,)) | |
| 153 continue | |
| 154 process_prot = ExportCommandProtocol(self, _jid, options, profile) | |
| 155 self.spawned.setdefault((_jid, profile),set()).add(process_prot) | |
| 156 reactor.spawnProcess(process_prot, command, args, usePTY = process_prot.boolOption('pty')) | |
| 157 |