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annotate sat/plugins/plugin_xep_0447.py @ 3913:944f51f9c2b4

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core (xmpp): make `send` a blocking method, fix `sendMessageData` calls: original `send` method is blocking, and it is used as such by Wokkel and thus can't be changed to an async method easily. However, an Async method is necessary to have an async trigger at the very end of the send workflow for end-to-end encryption. To workaround that, `send` is an async method which call `a_send`, an async method which actually does the sending. This way legacy method can still call `send` while `a_send` can be await otherwise. Fix calls to `sendMessageData`: the method now being an `async` one, `ensureDeferred` had to be used in some calls.
author Goffi <goffi@goffi.org>
date Sat, 24 Sep 2022 16:31:39 +0200
parents 4b7106eede0c
children 0ff265725489
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3897
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
1 #!/usr/bin/env python3
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2
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3 # Copyright (C) 2009-2022 Jérôme Poisson (goffi@goffi.org)
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4
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5 # This program is free software: you can redistribute it and/or modify
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6 # it under the terms of the GNU Affero General Public License as published by
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7 # the Free Software Foundation, either version 3 of the License, or
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8 # (at your option) any later version.
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9
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10 # This program is distributed in the hope that it will be useful,
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11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 # GNU Affero General Public License for more details.
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14
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15 # You should have received a copy of the GNU Affero General Public License
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16 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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17
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
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18 from typing import Optional, Dict, List, Tuple, Union, Any
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19
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
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20 from twisted.words.xish import domish
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21
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
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22 from sat.core.constants import Const as C
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23 from sat.core.i18n import _
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24 from sat.core.log import getLogger
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25 from sat.core import exceptions
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26
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27 log = getLogger(__name__)
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28
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29
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30 PLUGIN_INFO = {
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31 C.PI_NAME: "Stateless File Sharing",
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32 C.PI_IMPORT_NAME: "XEP-0447",
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33 C.PI_TYPE: "XEP",
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34 C.PI_MODES: C.PLUG_MODE_BOTH,
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35 C.PI_PROTOCOLS: ["XEP-0447"],
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36 C.PI_DEPENDENCIES: ["XEP-0103", "XEP-0446"],
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37 C.PI_MAIN: "XEP_0447",
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38 C.PI_HANDLER: "no",
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39 C.PI_DESCRIPTION: _("""Implementation of XEP-0447 (Stateless File Sharing)"""),
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40 }
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41
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42 NS_SFS = "urn:xmpp:sfs:0"
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43
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44
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
Goffi <goffi@goffi.org>
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45 class XEP_0447:
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46 namespace = NS_SFS
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47
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48 def __init__(self, host):
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49 log.info(_("XEP-0447 (Stateless File Sharing) plugin initialization"))
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50 host.registerNamespace("sfs", NS_SFS)
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51 self._u = host.plugins["XEP-0103"]
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52 self._m = host.plugins["XEP-0446"]
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53
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54 def get_file_sharing_elt(
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55 self,
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56 sources: List[Dict[str, Any]],
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57 disposition: Optional[str] = None,
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58 name: Optional[str] = None,
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Goffi <goffi@goffi.org>
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59 media_type: Optional[str] = None,
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60 desc: Optional[str] = None,
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61 size: Optional[int] = None,
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62 file_hash: Optional[Tuple[str, str]] = None,
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63 date: Optional[Union[float, int]] = None,
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64 width: Optional[int] = None,
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65 height: Optional[int] = None,
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66 length: Optional[int] = None,
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67 thumbnail: Optional[str] = None,
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68 **kwargs,
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69 ) -> domish.Element:
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70 """Generate the <file-sharing/> element
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71
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72 @param extra: extra metadata describing how to access the URL
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73 @return: ``<sfs/>`` element
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74 """
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75 file_sharing_elt = domish.Element((NS_SFS, "file-sharing"))
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76 if disposition is not None:
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77 file_sharing_elt["disposition"] = disposition
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78 file_sharing_elt.addChild(
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79 self._m.get_file_metadata_elt(
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80 name=name,
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81 media_type=media_type,
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82 desc=desc,
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83 size=size,
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84 file_hash=file_hash,
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85 date=date,
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86 width=width,
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87 height=height,
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88 length=length,
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89 thumbnail=thumbnail,
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90 )
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91 )
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92 sources_elt = file_sharing_elt.addElement("sources")
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93 for source_data in sources:
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94 if "url" in source_data:
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parents:
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95 sources_elt.addChild(
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96 self._u.get_url_data_elt(**source_data)
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97 )
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98 else:
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99 raise NotImplementedError(
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100 f"source data not implemented: {source_data}"
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101 )
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102
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103 return file_sharing_elt
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104
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105 def parse_file_sharing_elt(
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106 self,
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107 file_sharing_elt: domish.Element
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108 ) -> Dict[str, Any]:
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parents:
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109 """Parse <file-sharing/> element and return file-sharing data
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Goffi <goffi@goffi.org>
parents:
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110
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parents:
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111 @param file_sharing_elt: <file-sharing/> element
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112 @return: file-sharing data. It a dict whose keys correspond to
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Goffi <goffi@goffi.org>
parents:
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113 [get_file_sharing_elt] parameters
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
Goffi <goffi@goffi.org>
parents:
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114 """
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Goffi <goffi@goffi.org>
parents:
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115 if file_sharing_elt.name != "file-sharing":
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Goffi <goffi@goffi.org>
parents:
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116 try:
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Goffi <goffi@goffi.org>
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117 file_sharing_elt = next(
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118 file_sharing_elt.elements(NS_SFS, "file-sharing")
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Goffi <goffi@goffi.org>
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119 )
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
Goffi <goffi@goffi.org>
parents:
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120 except StopIteration:
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Goffi <goffi@goffi.org>
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121 raise exceptions.NotFound
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Goffi <goffi@goffi.org>
parents:
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122 try:
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Goffi <goffi@goffi.org>
parents:
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123 data = self._m.parse_file_metadata_elt(file_sharing_elt)
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
124 except exceptions.NotFound:
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Goffi <goffi@goffi.org>
parents:
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125 data = {}
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Goffi <goffi@goffi.org>
parents:
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126 disposition = file_sharing_elt.getAttribute("disposition")
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
Goffi <goffi@goffi.org>
parents:
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127 if disposition is not None:
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Goffi <goffi@goffi.org>
parents:
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128 data["disposition"] = disposition
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Goffi <goffi@goffi.org>
parents:
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129 sources = data["sources"] = []
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
Goffi <goffi@goffi.org>
parents:
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130 try:
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Goffi <goffi@goffi.org>
parents:
diff changeset
131 sources_elt = next(file_sharing_elt.elements(NS_SFS, "sources"))
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
132 except StopIteration:
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
133 raise ValueError(f"<sources/> element is missing: {file_sharing_elt.toXml()}")
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
134 for elt in sources_elt.elements():
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
135 if elt.name == "url-data" and elt.uri == self._u.namespace:
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
136 source_data = self._u.parse_url_data_elt(elt)
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
137 else:
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
138 log.warning(f"unmanaged file sharing element: {elt.toXml}")
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
139 continue
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
140 sources.append(source_data)
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
141
4b7106eede0c plugin XEP-0447: Stateless File Sharing implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
142 return data