Mercurial > libervia-backend
annotate sat/bridge/bridge_constructor/constructors/dbus/constructor.py @ 3104:118d91c932a7
plugin XEP-0384: OMEMO for MUC implementation:
- encryption is now allowed for group chats
- when an encryption is requested for a MUC, real jids or all occupants are used to
encrypt the message
- a cache for plain text message sent to MUC is used, because for security reason we can't
encrypt message for our own device with OMEMO (that would prevent ratchet and break the
prefect forward secrecy). Thus, message sent in MUC are cached for 5 min, and the
decrypted version is used when found. We don't send immediately the plain text message
to frontends and history because we want to keep the same MUC behaviour as for plain
text, and receiving a message means that it was received and sent back by MUC service
- <origin-id> is used to identify messages sent by our device
- a feedback_jid is now use to use correct entity for feedback message in case of problem:
with a room we have to send feedback message to the room and not the the emitter
- encryptMessage now only accepts list in the renamed "entity_bare_jids" argument
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Mon, 30 Dec 2019 20:59:46 +0100 |
| parents | 964abd07dc03 |
| children | 9d0df638c8b4 |
| rev | line source |
|---|---|
| 3028 | 1 #!/usr/bin/env python3 |
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2 # -*- coding: utf-8 -*- |
| 2085 | 3 |
| 4 # SàT: a XMPP client | |
| 2771 | 5 # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org) |
| 2085 | 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 | |
| 20 from sat.bridge.bridge_constructor import base_constructor | |
| 21 | |
| 22 | |
| 23 class DbusConstructor(base_constructor.Constructor): | |
| 24 NAME = "dbus" | |
| 25 CORE_TEMPLATE = "dbus_core_template.py" | |
| 2086 | 26 CORE_DEST = "dbus_bridge.py" |
| 2085 | 27 CORE_FORMATS = { |
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28 "signals": """\ |
| 2085 | 29 @dbus.service.signal(const_INT_PREFIX+const_{category}_SUFFIX, |
| 30 signature='{sig_in}') | |
| 31 def {name}(self, {args}): | |
| 32 {body}\n""", | |
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33 "methods": """\ |
| 2085 | 34 @dbus.service.method(const_INT_PREFIX+const_{category}_SUFFIX, |
| 35 in_signature='{sig_in}', out_signature='{sig_out}', | |
| 36 async_callbacks={async_callbacks}) | |
| 37 def {name}(self, {args}{async_comma}{async_args_def}): | |
| 38 {debug}return self._callback("{name}", {args_result}{async_comma}{async_args_call})\n""", | |
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39 "signal_direct_calls": """\ |
| 2085 | 40 def {name}(self, {args}): |
| 41 self.dbus_bridge.{name}({args})\n""", | |
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42 } |
| 2085 | 43 |
| 44 FRONTEND_TEMPLATE = "dbus_frontend_template.py" | |
| 45 FRONTEND_DEST = CORE_DEST | |
| 46 FRONTEND_FORMATS = { | |
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47 "methods": """\ |
| 2085 | 48 def {name}(self, {args}{async_comma}{async_args}): |
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49 {error_handler}{blocking_call}{debug}return {result}\n""", |
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50 "async_methods": """\ |
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51 def {name}(self{async_comma}{args}): |
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52 loop = asyncio.get_running_loop() |
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53 fut = loop.create_future() |
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54 reply_handler = lambda ret=None: loop.call_soon_threadsafe(fut.set_result, ret) |
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55 error_handler = lambda err: loop.call_soon_threadsafe(fut.set_exception, dbus_to_bridge_exception(err)) |
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56 self.db_{category}_iface.{name}({args_result}{async_comma}timeout=const_TIMEOUT, reply_handler=reply_handler, error_handler=error_handler) |
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57 {debug}return fut\n""", |
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58 } |
| 2085 | 59 |
| 60 def core_completion_signal(self, completion, function, default, arg_doc, async_): | |
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61 completion["category"] = completion["category"].upper() |
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62 completion["body"] = ( |
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63 "pass" |
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64 if not self.args.debug |
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65 else 'log.debug ("{}")'.format(completion["name"]) |
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66 ) |
| 2085 | 67 |
| 68 def core_completion_method(self, completion, function, default, arg_doc, async_): | |
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69 completion.update( |
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70 { |
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71 "debug": "" |
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72 if not self.args.debug |
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73 else 'log.debug ("%s")\n%s' % (completion["name"], 8 * " "), |
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74 "args_result": self.getArguments( |
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75 function["sig_in"], name=arg_doc, unicode_protect=self.args.unicode |
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76 ), |
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77 "async_comma": ", " if async_ and function["sig_in"] else "", |
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78 "async_args_def": "callback=None, errback=None" if async_ else "", |
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79 "async_args_call": "callback=callback, errback=errback" if async_ else "", |
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80 "async_callbacks": "('callback', 'errback')" if async_ else "None", |
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81 "category": completion["category"].upper(), |
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82 } |
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83 ) |
| 2085 | 84 |
| 85 def frontend_completion_method(self, completion, function, default, arg_doc, async_): | |
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86 completion.update( |
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87 { |
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88 # XXX: we can manage blocking call in the same way as async one: if callback is None the call will be blocking |
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89 "debug": "" |
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90 if not self.args.debug |
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91 else 'log.debug ("%s")\n%s' % (completion["name"], 8 * " "), |
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92 "args_result": self.getArguments(function["sig_in"], name=arg_doc), |
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93 "async_args": "callback=None, errback=None", |
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94 "async_comma": ", " if function["sig_in"] else "", |
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95 "error_handler": """if callback is None: |
| 2085 | 96 error_handler = None |
| 97 else: | |
| 98 if errback is None: | |
| 99 errback = log.error | |
| 100 error_handler = lambda err:errback(dbus_to_bridge_exception(err)) | |
| 101 """, | |
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102 } |
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103 ) |
| 2085 | 104 if async_: |
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105 completion["blocking_call"] = "" |
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106 completion[ |
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107 "async_args_result" |
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108 ] = "timeout=const_TIMEOUT, reply_handler=callback, error_handler=error_handler" |
| 2085 | 109 else: |
| 110 # XXX: To have a blocking call, we must have not reply_handler, so we test if callback exists, and add reply_handler only in this case | |
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111 completion[ |
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112 "blocking_call" |
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113 ] = """kwargs={} |
| 2085 | 114 if callback is not None: |
| 115 kwargs['timeout'] = const_TIMEOUT | |
| 116 kwargs['reply_handler'] = callback | |
| 117 kwargs['error_handler'] = error_handler | |
| 118 """ | |
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119 completion["async_args_result"] = "**kwargs" |
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120 result = ( |
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121 "self.db_%(category)s_iface.%(name)s(%(args_result)s%(async_comma)s%(async_args_result)s)" |
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122 % completion |
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123 ) |
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124 completion["result"] = ( |
| 3028 | 125 "str(%s)" if self.args.unicode and function["sig_out"] == "s" else "%s" |
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126 ) % result |