Mercurial > libervia-backend
annotate src/plugins/plugin_adhoc_dbus.py @ 1569:44854fb5d3b2
plugin XEP-0065: fixed CHUNK_SIZE to 4096 to avoid wild disconnection by some proxies (Prosody's proxy65 disconnect if it receive bigger chunks)
author | Goffi <goffi@goffi.org> |
---|---|
date | Sun, 08 Nov 2015 14:44:33 +0100 |
parents | 94901070478e |
children | d17772b0fe22 |
rev | line source |
---|---|
822 | 1 #!/usr/bin/python |
2 # -*- coding: utf-8 -*- | |
3 | |
4 # SAT plugin for adding D-Bus to Ad-Hoc Commands | |
1396 | 5 # Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Jérôme Poisson (goffi@goffi.org) |
822 | 6 |
7 # This program is free software: you can redistribute it and/or modify | |
8 # it under the terms of the GNU Affero General Public License as published by | |
9 # the Free Software Foundation, either version 3 of the License, or | |
10 # (at your option) any later version. | |
11 | |
12 # This program is distributed in the hope that it will be useful, | |
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 # GNU Affero General Public License for more details. | |
16 | |
17 # You should have received a copy of the GNU Affero General Public License | |
18 # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 | |
1540
9a4e95c62380
plugin ad-hoc D-Bus: exception fixe + minor fixes
Goffi <goffi@goffi.org>
parents:
1396
diff
changeset
|
20 from sat.core.i18n import _ |
916
1a759096ccbd
core: use of Const for profile_key + replaced '@DEFAULT@' default profile_key by '@NONE@'
Goffi <goffi@goffi.org>
parents:
822
diff
changeset
|
21 from sat.core.constants import Const as C |
993
301b342c697a
core: use of the new core.log module:
Goffi <goffi@goffi.org>
parents:
916
diff
changeset
|
22 from sat.core.log import getLogger |
301b342c697a
core: use of the new core.log module:
Goffi <goffi@goffi.org>
parents:
916
diff
changeset
|
23 log = getLogger(__name__) |
1540
9a4e95c62380
plugin ad-hoc D-Bus: exception fixe + minor fixes
Goffi <goffi@goffi.org>
parents:
1396
diff
changeset
|
24 from sat.core import exceptions |
9a4e95c62380
plugin ad-hoc D-Bus: exception fixe + minor fixes
Goffi <goffi@goffi.org>
parents:
1396
diff
changeset
|
25 from twisted.internet import defer |
822 | 26 from wokkel import data_form |
1542
94901070478e
plugins: added new MissingModule exceptions to plugins using third party modules
Goffi <goffi@goffi.org>
parents:
1540
diff
changeset
|
27 try: |
94901070478e
plugins: added new MissingModule exceptions to plugins using third party modules
Goffi <goffi@goffi.org>
parents:
1540
diff
changeset
|
28 from lxml import etree |
94901070478e
plugins: added new MissingModule exceptions to plugins using third party modules
Goffi <goffi@goffi.org>
parents:
1540
diff
changeset
|
29 except ImportError: |
94901070478e
plugins: added new MissingModule exceptions to plugins using third party modules
Goffi <goffi@goffi.org>
parents:
1540
diff
changeset
|
30 raise exceptions.MissingModule(u"Missing module lxml, please download/install it from http://lxml.de/") |
94901070478e
plugins: added new MissingModule exceptions to plugins using third party modules
Goffi <goffi@goffi.org>
parents:
1540
diff
changeset
|
31 import os.path |
822 | 32 import uuid |
33 import dbus | |
34 from dbus.mainloop.glib import DBusGMainLoop | |
35 DBusGMainLoop(set_as_default=True) | |
36 | |
37 FD_NAME = "org.freedesktop.DBus" | |
38 FD_PATH = "/org/freedekstop/DBus" | |
39 INTROSPECT_IFACE = "org.freedesktop.DBus.Introspectable" | |
40 | |
41 INTROSPECT_METHOD = "Introspect" | |
42 IGNORED_IFACES_START = ('org.freedesktop', 'org.qtproject', 'org.kde.KMainWindow') # commands in interface starting with these values will be ignored | |
43 FLAG_LOOP = 'LOOP' | |
44 | |
45 PLUGIN_INFO = { | |
46 "name": "Ad-Hoc Commands - D-Bus", | |
47 "import_name": "AD_HOC_DBUS", | |
48 "type": "Misc", | |
49 "protocols": [], | |
50 "dependencies": ["XEP-0050"], | |
51 "main": "AdHocDBus", | |
52 "handler": "no", | |
53 "description": _("""Add D-Bus management to Ad-Hoc commands""") | |
54 } | |
55 | |
56 | |
57 class AdHocDBus(object): | |
58 | |
59 def __init__(self, host): | |
993
301b342c697a
core: use of the new core.log module:
Goffi <goffi@goffi.org>
parents:
916
diff
changeset
|
60 log.info(_("plugin Ad-Hoc D-Bus initialization")) |
822 | 61 self.host = host |
62 host.bridge.addMethod("adHocDBusAddAuto", ".plugin", in_sign='sasasasasasass', out_sign='(sa(sss))', | |
63 method=self._adHocDBusAddAuto, | |
64 async=True) | |
65 self.session_bus = dbus.SessionBus() | |
66 self.fd_object = self.session_bus.get_object(FD_NAME, FD_PATH, introspect=False) | |
67 self.XEP_0050 = host.plugins['XEP-0050'] | |
68 | |
69 def _DBusAsyncCall(self, proxy, method, *args, **kwargs): | |
70 """ Call a DBus method asynchronously and return a deferred | |
71 @param proxy: DBus object proxy, as returner by get_object | |
72 @param method: name of the method to call | |
73 @param args: will be transmitted to the method | |
74 @param kwargs: will be transmetted to the method, except for the following poped values: | |
75 - interface: name of the interface to use | |
76 @return: a deferred | |
77 | |
78 """ | |
79 d = defer.Deferred() | |
80 interface = kwargs.pop('interface', None) | |
81 kwargs['reply_handler'] = lambda ret=None: d.callback(ret) | |
82 kwargs['error_handler'] = d.errback | |
83 proxy.get_dbus_method(method, dbus_interface=interface)(*args, **kwargs) | |
84 return d | |
85 | |
86 def _DBusListNames(self): | |
87 return self._DBusAsyncCall(self.fd_object, "ListNames") | |
88 | |
89 def _DBusIntrospect(self, proxy): | |
90 return self._DBusAsyncCall(proxy, INTROSPECT_METHOD, interface=INTROSPECT_IFACE) | |
91 | |
92 def _acceptMethod(self, method): | |
93 """ Return True if we accept the method for a command | |
94 @param method: etree.Element | |
95 @return: True if the method is acceptable | |
96 | |
97 """ | |
98 if method.xpath("arg[@direction='in']"): # we don't accept method with argument for the moment | |
99 return False | |
100 return True | |
101 | |
102 @defer.inlineCallbacks | |
103 def _introspect(self, methods, bus_name, proxy): | |
993
301b342c697a
core: use of the new core.log module:
Goffi <goffi@goffi.org>
parents:
916
diff
changeset
|
104 log.debug("introspecting path [%s]" % proxy.object_path) |
822 | 105 introspect_xml = yield self._DBusIntrospect(proxy) |
106 el = etree.fromstring(introspect_xml) | |
107 for node in el.iterchildren('node', 'interface'): | |
108 if node.tag == 'node': | |
1540
9a4e95c62380
plugin ad-hoc D-Bus: exception fixe + minor fixes
Goffi <goffi@goffi.org>
parents:
1396
diff
changeset
|
109 new_path = os.path.join(proxy.object_path, node.get('name')) |
822 | 110 new_proxy = self.session_bus.get_object(bus_name, new_path, introspect=False) |
111 yield self._introspect(methods, bus_name, new_proxy) | |
112 elif node.tag == 'interface': | |
113 name = node.get('name') | |
114 if any(name.startswith(ignored) for ignored in IGNORED_IFACES_START): | |
993
301b342c697a
core: use of the new core.log module:
Goffi <goffi@goffi.org>
parents:
916
diff
changeset
|
115 log.debug('interface [%s] is ignored' % name) |
822 | 116 continue |
993
301b342c697a
core: use of the new core.log module:
Goffi <goffi@goffi.org>
parents:
916
diff
changeset
|
117 log.debug("introspecting interface [%s]" % name) |
822 | 118 for method in node.iterchildren('method'): |
119 if self._acceptMethod(method): | |
120 method_name = method.get('name') | |
993
301b342c697a
core: use of the new core.log module:
Goffi <goffi@goffi.org>
parents:
916
diff
changeset
|
121 log.debug("method accepted: [%s]" % method_name) |
822 | 122 methods.add((proxy.object_path, name, method_name)) |
123 | |
124 def _adHocDBusAddAuto(self, prog_name, allowed_jids, allowed_groups, allowed_magics, forbidden_jids, forbidden_groups, flags, profile_key): | |
125 return self.adHocDBusAddAuto(prog_name, allowed_jids, allowed_groups, allowed_magics, forbidden_jids, forbidden_groups, flags, profile_key) | |
126 | |
127 @defer.inlineCallbacks | |
916
1a759096ccbd
core: use of Const for profile_key + replaced '@DEFAULT@' default profile_key by '@NONE@'
Goffi <goffi@goffi.org>
parents:
822
diff
changeset
|
128 def adHocDBusAddAuto(self, prog_name, allowed_jids=None, allowed_groups=None, allowed_magics=None, forbidden_jids=None, forbidden_groups=None, flags=None, profile_key=C.PROF_KEY_NONE): |
822 | 129 bus_names = yield self._DBusListNames() |
130 bus_names = [bus_name for bus_name in bus_names if '.' + prog_name in bus_name] | |
131 if not bus_names: | |
993
301b342c697a
core: use of the new core.log module:
Goffi <goffi@goffi.org>
parents:
916
diff
changeset
|
132 log.info("Can't find any bus for [%s]" % prog_name) |
822 | 133 return |
134 bus_names.sort() | |
135 for bus_name in bus_names: | |
136 if bus_name.endswith(prog_name): | |
137 break | |
993
301b342c697a
core: use of the new core.log module:
Goffi <goffi@goffi.org>
parents:
916
diff
changeset
|
138 log.info("bus name found: [%s]" % bus_name) |
822 | 139 proxy = self.session_bus.get_object(bus_name, '/', introspect=False) |
140 methods = set() | |
141 | |
142 yield self._introspect(methods, bus_name, proxy) | |
143 | |
144 if methods: | |
145 self._addCommand(prog_name, bus_name, methods, | |
146 allowed_jids = allowed_jids, | |
147 allowed_groups = allowed_groups, | |
148 allowed_magics = allowed_magics, | |
149 forbidden_jids = forbidden_jids, | |
150 forbidden_groups = forbidden_groups, | |
151 flags = flags, | |
152 profile_key = profile_key) | |
153 | |
154 defer.returnValue((bus_name, methods)) | |
155 | |
156 | |
916
1a759096ccbd
core: use of Const for profile_key + replaced '@DEFAULT@' default profile_key by '@NONE@'
Goffi <goffi@goffi.org>
parents:
822
diff
changeset
|
157 def _addCommand(self, adhoc_name, bus_name, methods, allowed_jids=None, allowed_groups=None, allowed_magics=None, forbidden_jids=None, forbidden_groups=None, flags=None, profile_key=C.PROF_KEY_NONE): |
822 | 158 if flags is None: |
159 flags = set() | |
160 | |
161 def DBusCallback(command_elt, session_data, action, node, profile): | |
162 actions = session_data.setdefault('actions',[]) | |
163 names_map = session_data.setdefault('names_map', {}) | |
164 actions.append(action) | |
165 | |
166 if len(actions) == 1: | |
167 # it's our first request, we ask the desired new status | |
168 status = self.XEP_0050.STATUS.EXECUTING | |
169 form = data_form.Form('form', title=_('Command selection')) | |
170 options = [] | |
171 for path, iface, command in methods: | |
172 label = command.rsplit('.',1)[-1] | |
173 name = str(uuid.uuid4()) | |
174 names_map[name] = (path, iface, command) | |
175 options.append(data_form.Option(name, label)) | |
176 | |
177 field = data_form.Field('list-single', 'command', options=options, required=True) | |
178 form.addField(field) | |
179 | |
180 payload = form.toElement() | |
181 note = None | |
182 | |
183 elif len(actions) == 2: | |
184 # we should have the answer here | |
185 try: | |
186 x_elt = command_elt.elements(data_form.NS_X_DATA,'x').next() | |
187 answer_form = data_form.Form.fromElement(x_elt) | |
188 command = answer_form['command'] | |
1540
9a4e95c62380
plugin ad-hoc D-Bus: exception fixe + minor fixes
Goffi <goffi@goffi.org>
parents:
1396
diff
changeset
|
189 except (KeyError, StopIteration): |
822 | 190 raise self.XEP_0050.AdHocError(self.XEP_0050.ERROR.BAD_PAYLOAD) |
191 | |
192 if command not in names_map: | |
193 raise self.XEP_0050.AdHocError(self.XEP_0050.ERROR.BAD_PAYLOAD) | |
194 | |
195 path, iface, command = names_map[command] | |
196 proxy = self.session_bus.get_object(bus_name, path) | |
197 | |
1540
9a4e95c62380
plugin ad-hoc D-Bus: exception fixe + minor fixes
Goffi <goffi@goffi.org>
parents:
1396
diff
changeset
|
198 self._DBusAsyncCall(proxy, command, interface=iface) |
822 | 199 |
200 # job done, we can end the session, except if we have FLAG_LOOP | |
201 if FLAG_LOOP in flags: | |
202 # We have a loop, so we clear everything and we execute again the command as we had a first call (command_elt is not used, so None is OK) | |
203 del actions[:] | |
204 names_map.clear() | |
205 return DBusCallback(None, session_data, self.XEP_0050.ACTION.EXECUTE, node, profile) | |
206 form = data_form.Form('form', title=_(u'Updated')) | |
207 form.addField(data_form.Field('fixed', u'Command sent')) | |
208 status = self.XEP_0050.STATUS.COMPLETED | |
209 payload = None | |
210 note = (self.XEP_0050.NOTE.INFO, _(u"Command sent")) | |
211 else: | |
212 raise self.XEP_0050.AdHocError(self.XEP_0050.ERROR.INTERNAL) | |
213 | |
214 return (payload, status, None, note) | |
215 | |
216 self.XEP_0050.addAdHocCommand(DBusCallback, adhoc_name, | |
217 allowed_jids = allowed_jids, | |
218 allowed_groups = allowed_groups, | |
219 allowed_magics = allowed_magics, | |
220 forbidden_jids = forbidden_jids, | |
221 forbidden_groups = forbidden_groups, | |
222 profile_key = profile_key) |