Mercurial > libervia-pubsub
annotate twisted/plugins/pubsub.py @ 426:6f8e1c180c83
added "~/.config/sat" as search patch for config
author | Goffi <goffi@goffi.org> |
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date | Sun, 13 Sep 2020 15:52:17 +0200 |
parents | 89736353f6be |
children | 34bd55179e22 |
rev | line source |
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414 | 1 #!/usr/bin/env python3 |
233 | 2 #-*- coding: utf-8 -*- |
3 | |
384 | 4 # Copyright (c) 2012-2019 Jérôme Poisson |
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5 # Copyright (c) 2003-2011 Ralph Meijer |
233 | 6 |
7 | |
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8 # This program is free software: you can redistribute it and/or modify |
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9 # it under the terms of the GNU Affero General Public License as published by |
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10 # the Free Software Foundation, either version 3 of the License, or |
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11 # (at your option) any later version. |
233 | 12 |
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13 # This program is distributed in the hope that it will be useful, |
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14 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 # GNU Affero General Public License for more details. |
233 | 17 |
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18 # You should have received a copy of the GNU Affero General Public License |
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19 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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20 # -- |
233 | 21 |
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22 # This program is based on Idavoll (http://idavoll.ik.nu/), |
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23 # originaly written by Ralph Meijer (http://ralphm.net/blog/) |
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24 # It is sublicensed under AGPL v3 (or any later version) as allowed by the original |
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25 # license. |
233 | 26 |
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27 # -- |
233 | 28 |
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29 # Here is a copy of the original license: |
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30 |
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31 # Copyright (c) 2003-2011 Ralph Meijer |
233 | 32 |
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33 # Permission is hereby granted, free of charge, to any person obtaining |
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34 # a copy of this software and associated documentation files (the |
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35 # "Software"), to deal in the Software without restriction, including |
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36 # without limitation the rights to use, copy, modify, merge, publish, |
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37 # distribute, sublicense, and/or sell copies of the Software, and to |
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38 # permit persons to whom the Software is furnished to do so, subject to |
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39 # the following conditions: |
233 | 40 |
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41 # The above copyright notice and this permission notice shall be |
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42 # included in all copies or substantial portions of the Software. |
233 | 43 |
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44 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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45 # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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46 # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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47 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
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48 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
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49 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
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50 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
233 | 51 |
155 | 52 |
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53 import sys |
380 | 54 import csv |
418
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55 from os.path import expanduser, realpath |
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56 import configparser |
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57 # patch for Python 3.8 compatibility |
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58 from sat_tmp.twisted import install as install_twisted_patches |
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59 install_twisted_patches() |
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60 from zope.interface import implementer |
369 | 61 from twisted.application.service import IServiceMaker |
62 from twisted.application import service | |
380 | 63 from twisted.python import usage, log |
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64 from twisted.plugin import IPlugin |
369 | 65 from twisted.words.protocols.jabber.jid import JID |
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66 import sat_pubsub |
369 | 67 |
68 | |
69 | |
70 | |
380 | 71 def coerceListType(value): |
414 | 72 return next(csv.reader( |
380 | 73 [value], delimiter=",", quotechar='"', skipinitialspace=True |
414 | 74 )) |
380 | 75 |
76 | |
77 def coerceJidListType(value): | |
78 values = [JID(v) for v in coerceListType(value)] | |
79 if any((j.resource for j in values)): | |
414 | 80 raise ValueError("you must use bare jids") |
380 | 81 return values |
82 | |
83 | |
84 | |
369 | 85 OPT_PARAMETERS_BOTH = [ |
86 ['jid', None, None, 'JID this component will be available at'], | |
87 ['xmpp_pwd', None, None, 'XMPP server component password'], | |
88 ['rhost', None, '127.0.0.1', 'XMPP server host'], | |
89 ['rport', None, '5347', 'XMPP server port'], | |
90 ['backend', None, 'pgsql', 'Choice of storage backend'], | |
91 ['db_user', None, None, 'Database user (pgsql backend)'], | |
92 ['db_name', None, 'pubsub', 'Database name (pgsql backend)'], | |
93 ['db_pass', None, None, 'Database password (pgsql backend)'], | |
94 ['db_host', None, None, 'Database host (pgsql backend)'], | |
95 ['db_port', None, None, 'Database port (pgsql backend)'], | |
96 ] | |
97 # here for future use | |
380 | 98 OPT_PARAMETERS_CFG = [ |
99 ["admins_jids_list", None, [], "List of administrators' bare jids", | |
100 coerceJidListType] | |
101 ] | |
369 | 102 |
414 | 103 CONFIG_FILENAME = 'sat' |
369 | 104 # List of the configuration filenames sorted by ascending priority |
105 CONFIG_FILES = [realpath(expanduser(path) + CONFIG_FILENAME + '.conf') for path in ( | |
106 '/etc/', '/etc/{}/'.format(CONFIG_FILENAME), | |
107 '~/', '~/.', | |
108 '.config/', '.config/.', | |
426
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109 '.config/{}/'.format(CONFIG_FILENAME), |
369 | 110 '', '.')] |
111 CONFIG_SECTION = 'pubsub' | |
112 | |
113 | |
114 class Options(usage.Options): | |
115 optParameters = OPT_PARAMETERS_BOTH | |
116 | |
117 optFlags = [ | |
118 ('verbose', 'v', 'Show traffic'), | |
119 ('hide-nodes', None, 'Hide all nodes for disco') | |
120 ] | |
121 | |
122 def __init__(self): | |
123 """Read SàT Pubsub configuration file in order to overwrite the hard-coded default values. | |
124 | |
125 Priority for the usage of the values is (from lowest to highest): | |
126 - hard-coded default values | |
127 - values from SàT configuration files | |
128 - values passed on the command line | |
129 """ | |
130 # If we do it the reading later: after the command line options have been parsed, there's no good way to know | |
131 # if the options values are the hard-coded ones or if they have been passed on the command line. | |
132 | |
133 # FIXME: must be refactored + code can be factorised with backend | |
414 | 134 config_parser = configparser.ConfigParser() |
369 | 135 config_parser.read(CONFIG_FILES) |
136 for param in self.optParameters + OPT_PARAMETERS_CFG: | |
137 name = param[0] | |
138 try: | |
139 value = config_parser.get(CONFIG_SECTION, name) | |
140 try: | |
141 param[2] = param[4](value) | |
142 except IndexError: # the coerce method is optional | |
143 param[2] = value | |
380 | 144 except Exception as e: |
414 | 145 log.err('Invalid value for setting "{name}": {msg}'.format( |
380 | 146 name=name, msg=e)) |
147 sys.exit(1) | |
414 | 148 except (configparser.NoSectionError, configparser.NoOptionError): |
369 | 149 pass |
150 usage.Options.__init__(self) | |
151 for opt_data in OPT_PARAMETERS_CFG: | |
152 self[opt_data[0]] = opt_data[2] | |
155 | 153 |
369 | 154 def postOptions(self): |
155 if self['backend'] not in ['pgsql', 'memory']: | |
406 | 156 raise usage.UsageError("Unknown backend!") |
369 | 157 if self['backend'] == 'memory': |
158 raise NotImplementedError('memory backend is not available at the moment') | |
159 | |
160 self['jid'] = JID(self['jid']) if self['jid'] else None | |
161 | |
162 | |
414 | 163 @implementer(IServiceMaker, IPlugin) |
369 | 164 class SatPubsubMaker(object): |
165 tapname = "sat-pubsub" | |
414 | 166 description = "Salut à Toi Publish-Subscribe Service Component" |
369 | 167 options = Options |
168 | |
169 def makeService(self, config): | |
417
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170 from wokkel.component import Component |
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171 from wokkel.disco import DiscoHandler |
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172 from wokkel.generic import FallbackHandler, VersionHandler |
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173 from wokkel.iwokkel import IPubSubResource |
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174 from wokkel import data_form |
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175 from wokkel import pubsub |
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176 from wokkel import rsm |
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177 from wokkel import mam |
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178 from sat_pubsub import const |
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179 from sat_pubsub import mam as pubsub_mam |
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180 from sat_pubsub import pubsub_admin |
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181 from sat_pubsub.backend import BackendService, ExtraDiscoHandler |
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182 from sat_pubsub.schema import SchemaHandler |
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183 from sat_pubsub.privilege import PrivilegesHandler |
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184 from sat_pubsub.delegation import DelegationsHandler |
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185 |
369 | 186 if not config['jid'] or not config['xmpp_pwd']: |
187 raise usage.UsageError("You must specify jid and xmpp_pwd") | |
188 s = service.MultiService() | |
189 | |
190 # Create backend service with storage | |
191 | |
192 if config['backend'] == 'pgsql': | |
193 from twisted.enterprise import adbapi | |
194 from sat_pubsub.pgsql_storage import Storage | |
195 from psycopg2.extras import NamedTupleConnection | |
196 keys_map = { | |
197 'db_user': 'user', | |
198 'db_pass': 'password', | |
199 'db_name': 'database', | |
200 'db_host': 'host', | |
201 'db_port': 'port', | |
202 } | |
203 kwargs = {} | |
414 | 204 for config_k, k in keys_map.items(): |
369 | 205 v = config.get(config_k) |
206 if v is None: | |
207 continue | |
208 kwargs[k] = v | |
209 dbpool = adbapi.ConnectionPool('psycopg2', | |
210 cp_reconnect=True, | |
211 client_encoding='utf-8', | |
212 connection_factory=NamedTupleConnection, | |
213 **kwargs | |
214 ) | |
215 st = Storage(dbpool) | |
216 elif config['backend'] == 'memory': | |
406 | 217 raise NotImplementedError('memory backend is not available at the moment') |
369 | 218 |
380 | 219 bs = BackendService(st, config) |
369 | 220 bs.setName('backend') |
221 bs.setServiceParent(s) | |
222 | |
223 # Set up XMPP server-side component with publish-subscribe capabilities | |
224 | |
225 cs = Component(config["rhost"], int(config["rport"]), | |
226 config["jid"].full(), config["xmpp_pwd"]) | |
227 cs.setName('component') | |
228 cs.setServiceParent(s) | |
229 | |
230 cs.factory.maxDelay = 900 | |
231 | |
232 if config["verbose"]: | |
233 cs.logTraffic = True | |
234 | |
235 FallbackHandler().setHandlerParent(cs) | |
414 | 236 VersionHandler('SàT Pubsub', sat_pubsub.__version__).setHandlerParent(cs) |
369 | 237 DiscoHandler().setHandlerParent(cs) |
238 | |
239 ph = PrivilegesHandler(config['jid']) | |
240 ph.setHandlerParent(cs) | |
241 bs.privilege = ph | |
242 | |
243 resource = IPubSubResource(bs) | |
244 resource.hideNodes = config["hide-nodes"] | |
245 resource.serviceJID = config["jid"] | |
246 | |
247 ps = (rsm if const.FLAG_ENABLE_RSM else pubsub).PubSubService(resource) | |
248 ps.setHandlerParent(cs) | |
249 resource.pubsubService = ps | |
250 | |
251 if const.FLAG_ENABLE_MAM: | |
252 mam_resource = pubsub_mam.MAMResource(bs) | |
253 mam_s = mam.MAMService(mam_resource) | |
254 mam_s.addFilter(data_form.Field(var=const.MAM_FILTER_CATEGORY)) | |
255 mam_s.setHandlerParent(cs) | |
256 | |
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257 pa = pubsub_admin.PubsubAdminHandler(bs) |
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258 pa.setHandlerParent(cs) |
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259 |
369 | 260 sh = SchemaHandler() |
261 sh.setHandlerParent(cs) | |
262 | |
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263 # wokkel.pubsub doesn't handle non pubsub# disco |
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264 # and we need to announce other feature, so this is a workaround |
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265 # to add them |
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266 # FIXME: propose a patch upstream to fix this situation |
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267 ed = ExtraDiscoHandler() |
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268 ed.setHandlerParent(cs) |
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269 |
369 | 270 # XXX: delegation must be instancied at the end, |
271 # because it does some MonkeyPatching on handlers | |
272 dh = DelegationsHandler() | |
273 dh.setHandlerParent(cs) | |
274 bs.delegation = dh | |
275 | |
276 return s | |
277 | |
278 serviceMaker = SatPubsubMaker() |