Mercurial > libervia-backend
annotate libervia/backend/plugins/plugin_xep_0470.py @ 4335:430d5d99a740
plugin XEP-0358: "Publishing Available Jingle Sessions" implementation:
rel 453
author | Goffi <goffi@goffi.org> |
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date | Tue, 03 Dec 2024 00:13:07 +0100 |
parents | 0d7bb4df2343 |
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1 #!/usr/bin/env python3 |
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2 |
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3 # Libervia plugin for Pubsub Attachments |
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4 # Copyright (C) 2009-2022 Jérôme Poisson (goffi@goffi.org) |
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5 |
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6 # This program is free software: you can redistribute it and/or modify |
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7 # it under the terms of the GNU Affero General Public License as published by |
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8 # the Free Software Foundation, either version 3 of the License, or |
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9 # (at your option) any later version. |
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10 |
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11 # This program is distributed in the hope that it will be useful, |
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 # GNU Affero General Public License for more details. |
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15 |
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16 # You should have received a copy of the GNU Affero General Public License |
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17 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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18 |
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19 from typing import List, Tuple, Dict, Any, Callable, Optional |
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20 |
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21 from twisted.words.protocols.jabber import jid, xmlstream, error |
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22 from twisted.words.xish import domish |
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23 from twisted.internet import defer |
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24 from zope.interface import implementer |
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25 from wokkel import pubsub, disco, iwokkel |
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26 |
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27 from libervia.backend.core.constants import Const as C |
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28 from libervia.backend.core.i18n import _ |
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29 from libervia.backend.core.log import getLogger |
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30 from libervia.backend.core.core_types import SatXMPPEntity |
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31 from libervia.backend.core import exceptions |
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32 from libervia.backend.tools.common import uri, data_format, date_utils |
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33 from libervia.backend.tools.utils import as_deferred, xmpp_date |
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34 |
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35 |
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36 log = getLogger(__name__) |
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37 |
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38 IMPORT_NAME = "XEP-0470" |
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39 |
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40 PLUGIN_INFO = { |
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41 C.PI_NAME: "Pubsub Attachments", |
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42 C.PI_IMPORT_NAME: IMPORT_NAME, |
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43 C.PI_TYPE: C.PLUG_TYPE_XEP, |
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44 C.PI_MODES: C.PLUG_MODE_BOTH, |
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45 C.PI_PROTOCOLS: [], |
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46 C.PI_DEPENDENCIES: ["XEP-0060"], |
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47 C.PI_MAIN: "PubsubAttachments", |
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48 C.PI_HANDLER: "yes", |
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49 C.PI_DESCRIPTION: _("""Pubsub Attachments implementation"""), |
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50 } |
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51 NS_PREFIX = "urn:xmpp:pubsub-attachments:" |
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52 NS_PUBSUB_ATTACHMENTS = f"{NS_PREFIX}1" |
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53 NS_PUBSUB_ATTACHMENTS_SUM = f"{NS_PREFIX}summary:1" |
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54 |
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55 |
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56 class PubsubAttachments: |
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57 namespace = NS_PUBSUB_ATTACHMENTS |
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58 |
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59 def __init__(self, host): |
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60 log.info(_("XEP-0470 (Pubsub Attachments) plugin initialization")) |
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61 host.register_namespace("pubsub-attachments", NS_PUBSUB_ATTACHMENTS) |
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62 self.host = host |
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63 self._p = host.plugins["XEP-0060"] |
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64 self.handlers: Dict[Tuple[str, str], dict[str, Any]] = {} |
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65 host.trigger.add("XEP-0277_send", self.on_mb_send) |
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66 self.register_attachment_handler( |
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67 "noticed", NS_PUBSUB_ATTACHMENTS, self.noticed_get, self.noticed_set |
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68 ) |
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69 self.register_attachment_handler( |
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70 "reactions", NS_PUBSUB_ATTACHMENTS, self.reactions_get, self.reactions_set |
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71 ) |
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72 host.bridge.add_method( |
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73 "ps_attachments_get", |
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74 ".plugin", |
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75 in_sign="sssasss", |
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76 out_sign="(ss)", |
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77 method=self._get, |
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78 async_=True, |
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79 ) |
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80 host.bridge.add_method( |
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81 "ps_attachments_set", |
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82 ".plugin", |
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83 in_sign="ss", |
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84 out_sign="", |
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85 method=self._set, |
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86 async_=True, |
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87 ) |
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88 |
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89 def get_handler(self, client): |
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90 return PubsubAttachments_Handler() |
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91 |
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92 def register_attachment_handler( |
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93 self, |
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94 name: str, |
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95 namespace: str, |
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96 get_cb: Callable[[SatXMPPEntity, domish.Element, Dict[str, Any]], None], |
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97 set_cb: Callable[ |
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98 [SatXMPPEntity, Dict[str, Any], Optional[domish.Element]], |
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99 Optional[domish.Element], |
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100 ], |
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101 ) -> None: |
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102 """Register callbacks to handle an attachment |
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103 |
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104 @param name: name of the element |
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105 @param namespace: namespace of the element |
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106 (name, namespace) couple must be unique |
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107 @param get: method to call when attachments are retrieved |
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108 it will be called with (client, element, data) where element is the |
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109 <attachments> element to parse, and data must be updated in place with |
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110 parsed data |
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111 @param set: method to call when the attachment need to be set or udpated |
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112 it will be called with (client, data, former_elt of None if there was no |
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113 former element). When suitable, ``operation`` should be used to check if we |
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114 request an ``update`` or a ``replace``. |
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115 The callback can be either a blocking method, a Deferred or a coroutine |
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116 """ |
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117 key = (name, namespace) |
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118 if key in self.handlers: |
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119 raise exceptions.ConflictError( |
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120 f"({name}, {namespace}) attachment handlers are already registered" |
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121 ) |
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122 self.handlers[(name, namespace)] = {"get": get_cb, "set": set_cb} |
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123 |
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124 def get_attachment_node_name(self, service: jid.JID, node: str, item: str) -> str: |
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125 """Generate name to use for attachment node""" |
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126 target_item_uri = uri.build_xmpp_uri( |
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127 "pubsub", path=service.userhost(), node=node, item=item |
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128 ) |
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129 return f"{NS_PUBSUB_ATTACHMENTS}/{target_item_uri}" |
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130 |
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131 def is_attachment_node(self, node: str) -> bool: |
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132 """Return True if node name is an attachment node""" |
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133 return node.startswith(f"{NS_PUBSUB_ATTACHMENTS}/") |
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134 |
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135 def attachment_node_2_item(self, node: str) -> Tuple[jid.JID, str, str]: |
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136 """Retrieve service, node and item from attachement node's name""" |
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137 if not self.is_attachment_node(node): |
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138 raise ValueError("this is not an attachment node!") |
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139 prefix_len = len(f"{NS_PUBSUB_ATTACHMENTS}/") |
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140 item_uri = node[prefix_len:] |
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141 parsed_uri = uri.parse_xmpp_uri(item_uri) |
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142 if parsed_uri["type"] != "pubsub": |
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143 raise ValueError(f"unexpected URI type, it must be a pubsub URI: {item_uri}") |
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144 try: |
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145 service = jid.JID(parsed_uri["path"]) |
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146 except RuntimeError: |
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147 raise ValueError(f"invalid service in pubsub URI: {item_uri}") |
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148 node = parsed_uri["node"] |
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149 item = parsed_uri["item"] |
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150 return (service, node, item) |
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151 |
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152 async def on_mb_send( |
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153 self, |
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154 client: SatXMPPEntity, |
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155 service: jid.JID, |
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156 node: str, |
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157 item: domish.Element, |
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158 data: dict, |
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159 ) -> bool: |
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160 """trigger to create attachment node on each publication""" |
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161 await self.create_attachments_node( |
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162 client, service, node, item["id"], autocreate=True |
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163 ) |
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164 return True |
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165 |
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166 async def create_attachments_node( |
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167 self, |
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168 client: SatXMPPEntity, |
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169 service: jid.JID, |
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170 node: str, |
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171 item_id: str, |
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172 autocreate: bool = False, |
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173 ): |
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174 """Create node for attachements if necessary |
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175 |
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176 @param service: service of target node |
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177 @param node: node where target item is published |
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178 @param item_id: ID of target item |
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179 @param autocrate: if True, target node is create if it doesn't exist |
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180 """ |
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181 try: |
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182 node_config = await self._p.getConfiguration(client, service, node) |
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183 except error.StanzaError as e: |
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184 if e.condition == "item-not-found" and autocreate: |
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185 # we auto-create the missing node |
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186 await self._p.createNode(client, service, node) |
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187 node_config = await self._p.getConfiguration(client, service, node) |
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188 elif e.condition in ("forbidden", "feature-not-implemented"): |
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189 node_config = self._p.make_configuration_form({}) |
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190 else: |
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191 raise e |
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192 try: |
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193 # FIXME: check if this is the best publish_model option |
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194 node_config.fields["pubsub#publish_model"].value = "open" |
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195 except KeyError: |
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196 log.warning("pubsub#publish_model field is missing") |
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197 attachment_node = self.get_attachment_node_name(service, node, item_id) |
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198 # we use the same options as target node |
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199 try: |
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200 await self._p.create_if_new_node( |
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201 client, service, attachment_node, options=dict(node_config) |
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202 ) |
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203 except Exception as e: |
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204 log.warning(f"Can't create attachment node {attachment_node}: {e}") |
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205 |
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206 def items_2_attachment_data( |
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207 self, client: SatXMPPEntity, items: List[domish.Element] |
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208 ) -> List[Dict[str, Any]]: |
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209 """Convert items from attachment node to attachment data""" |
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210 list_data = [] |
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211 for item in items: |
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212 try: |
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213 attachments_elt = next( |
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214 item.elements(NS_PUBSUB_ATTACHMENTS, "attachments") |
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215 ) |
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216 except StopIteration: |
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217 log.warning( |
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218 "item is missing <attachments> elements, ignoring it: {item.toXml()}" |
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219 ) |
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220 continue |
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221 item_id = item["id"] |
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222 publisher_s = item.getAttribute("publisher") |
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223 # publisher is not filled by all pubsub service, so we can't count on it |
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224 if publisher_s: |
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225 publisher = jid.JID(publisher_s) |
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226 if publisher.userhost() != item_id: |
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227 log.warning( |
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228 f"publisher {publisher.userhost()!r} doesn't correspond to item " |
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229 f"id {item['id']!r}, ignoring. This may be a hack attempt.\n" |
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230 f"{item.toXml()}" |
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231 ) |
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232 continue |
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233 try: |
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234 jid.JID(item_id) |
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235 except RuntimeError: |
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236 log.warning( |
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237 "item ID is not a JID, this is not compliant and is ignored: " |
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238 f"{item.toXml}" |
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239 ) |
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240 continue |
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241 data = {"from": item_id} |
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242 for handler in self.handlers.values(): |
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243 handler["get"](client, attachments_elt, data) |
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244 if len(data) > 1: |
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245 list_data.append(data) |
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246 return list_data |
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247 |
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248 def _get( |
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249 self, |
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250 service_s: str, |
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251 node: str, |
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252 item: str, |
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253 senders_s: List[str], |
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254 extra_s: str, |
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255 profile_key: str, |
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256 ) -> defer.Deferred: |
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257 client = self.host.get_client(profile_key) |
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258 extra = data_format.deserialise(extra_s) |
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259 senders = [jid.JID(s) for s in senders_s] |
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260 d = defer.ensureDeferred( |
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261 self.get_attachments(client, jid.JID(service_s), node, item, senders) |
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262 ) |
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263 d.addCallback( |
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264 lambda ret: (data_format.serialise(ret[0]), data_format.serialise(ret[1])) |
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265 ) |
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266 return d |
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267 |
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268 async def get_attachments( |
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269 self, |
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270 client: SatXMPPEntity, |
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271 service: jid.JID, |
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272 node: str, |
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273 item: str, |
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274 senders: Optional[List[jid.JID]], |
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275 extra: Optional[dict] = None, |
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276 ) -> Tuple[List[Dict[str, Any]], dict]: |
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277 """Retrieve data attached to a pubsub item |
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278 |
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279 @param service: pubsub service where the node is |
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280 @param node: pubsub node containing the item |
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281 @param item: ID of the item for which attachments will be retrieved |
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282 @param senders: bare JIDs of entities that are checked. Attachments from those |
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283 entities will be retrieved. |
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284 If None, attachments from all entities will be retrieved |
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285 @param extra: extra data, will be used as ``extra`` argument when doing |
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286 ``get_items`` call. |
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287 @return: A tuple with: |
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288 - the list of attachments data, one item per found sender. The attachments |
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289 data are dict containing attachment, no ``extra`` field is used here |
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290 (contrarily to attachments data used with ``set_attachements``). |
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291 - metadata returned by the call to ``get_items`` |
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292 """ |
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293 if extra is None: |
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294 extra = {} |
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295 attachment_node = self.get_attachment_node_name(service, node, item) |
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296 item_ids = [e.userhost() for e in senders] if senders else None |
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297 items, metadata = await self._p.get_items( |
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298 client, service, attachment_node, item_ids=item_ids, extra=extra |
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299 ) |
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300 list_data = self.items_2_attachment_data(client, items) |
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301 |
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302 return list_data, metadata |
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303 |
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304 def _set(self, attachments_s: str, profile_key: str) -> None: |
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305 client = self.host.get_client(profile_key) |
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306 attachments = data_format.deserialise(attachments_s) or {} |
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307 return defer.ensureDeferred(self.set_attachements(client, attachments)) |
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308 |
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309 async def apply_set_handler( |
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310 self, |
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311 client: SatXMPPEntity, |
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312 attachments_data: dict, |
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313 item_elt: Optional[domish.Element], |
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314 handlers: Optional[List[Tuple[str, str]]] = None, |
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315 from_jid: Optional[jid.JID] = None, |
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316 ) -> domish.Element: |
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317 """Apply all ``set`` callbacks to an attachments item |
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318 |
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319 @param attachments_data: data describing the attachments |
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320 ``extra`` key will be used, and created if not found |
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321 @param from_jid: jid of the author of the attachments |
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322 ``client.jid.userhostJID()`` will be used if not specified |
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323 @param item_elt: item containing an <attachments> element |
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324 will be modified in place |
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325 if None, a new element will be created |
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326 @param handlers: list of (name, namespace) of handlers to use. |
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327 if None, all registered handlers will be used. |
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328 @return: updated item_elt if given, otherwise a new item_elt |
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329 """ |
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330 attachments_data.setdefault("extra", {}) |
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331 if item_elt is None: |
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332 item_id = client.jid.userhost() if from_jid is None else from_jid.userhost() |
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333 item_elt = pubsub.Item(item_id) |
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334 item_elt.addElement((NS_PUBSUB_ATTACHMENTS, "attachments")) |
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335 |
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336 try: |
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337 attachments_elt = next( |
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338 item_elt.elements(NS_PUBSUB_ATTACHMENTS, "attachments") |
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339 ) |
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340 except StopIteration: |
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341 log.warning( |
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342 f"no <attachments> element found, creating a new one: {item_elt.toXml()}" |
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343 ) |
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344 attachments_elt = item_elt.addElement((NS_PUBSUB_ATTACHMENTS, "attachments")) |
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345 |
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346 if handlers is None: |
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347 handlers = list(self.handlers.keys()) |
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348 |
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349 for name, namespace in handlers: |
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350 try: |
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351 handler = self.handlers[(name, namespace)] |
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352 except KeyError: |
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353 log.error( |
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354 f"unregistered handler ({name!r}, {namespace!r}) is requested, " |
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355 "ignoring" |
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356 ) |
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357 continue |
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358 try: |
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359 former_elt = next(attachments_elt.elements(namespace, name)) |
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360 except StopIteration: |
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361 former_elt = None |
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362 new_elt = await as_deferred( |
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363 handler["set"], client, attachments_data, former_elt |
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364 ) |
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365 if new_elt != former_elt: |
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366 if former_elt is not None: |
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367 attachments_elt.children.remove(former_elt) |
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368 if new_elt is not None: |
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369 attachments_elt.addChild(new_elt) |
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370 return item_elt |
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371 |
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372 async def set_attachements( |
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373 self, client: SatXMPPEntity, attachments_data: Dict[str, Any] |
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374 ) -> None: |
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375 """Set or update attachments |
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376 |
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377 Former <attachments> element will be retrieved and updated. Individual |
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378 attachments replace or update their elements individually, according to the |
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379 "operation" key. |
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380 |
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381 "operation" key may be "update" or "replace", and defaults to update, it is only |
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382 used in attachments where "update" makes sense (e.g. it's used for "reactions" |
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383 but not for "noticed"). |
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384 |
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385 @param attachments_data: data describing attachments. Various keys (usually stored |
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386 in attachments_data["extra"]) may be used depending on the attachments |
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387 handlers registered. The keys "service", "node" and "id" MUST be set. |
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388 ``attachments_data`` is thought to be compatible with microblog data. |
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389 |
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390 """ |
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391 try: |
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392 service = jid.JID(attachments_data["service"]) |
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393 node = attachments_data["node"] |
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394 item = attachments_data["id"] |
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395 except (KeyError, RuntimeError): |
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396 raise ValueError('data must have "service", "node" and "id" set') |
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397 attachment_node = self.get_attachment_node_name(service, node, item) |
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398 try: |
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399 items, __ = await self._p.get_items( |
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400 client, service, attachment_node, item_ids=[client.jid.userhost()] |
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401 ) |
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402 except exceptions.NotFound: |
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403 item_elt = None |
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404 else: |
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405 if not items: |
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406 item_elt = None |
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407 else: |
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408 item_elt = items[0] |
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409 |
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410 item_elt = await self.apply_set_handler( |
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411 client, |
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412 attachments_data, |
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413 item_elt=item_elt, |
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414 ) |
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415 |
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416 try: |
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417 await self._p.send_items(client, service, attachment_node, [item_elt]) |
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418 except error.StanzaError as e: |
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419 if e.condition == "item-not-found": |
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420 # the node doesn't exist, we can't publish attachments |
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421 log.warning( |
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422 f"no attachment node found at {service} on {node!r} for item " |
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423 f"{item!r}, we can't update attachments." |
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424 ) |
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425 raise exceptions.NotFound("No attachment node available") |
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426 else: |
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427 raise e |
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428 |
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429 async def subscribe( |
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430 self, |
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431 client: SatXMPPEntity, |
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432 service: jid.JID, |
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433 node: str, |
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434 item: str, |
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plugin pubsub attachments: partial implementation of pubsub-attachments protoXEP:
Goffi <goffi@goffi.org>
parents:
diff
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|
435 ) -> None: |
ac255a0fbd4c
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parents:
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|
436 """Subscribe to attachment node targeting the item |
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parents:
diff
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|
437 |
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parents:
diff
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|
438 @param service: service of target item (will also be used for attachment node) |
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plugin pubsub attachments: partial implementation of pubsub-attachments protoXEP:
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parents:
diff
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|
439 @param node: node of target item (used to get attachment node's name) |
ac255a0fbd4c
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parents:
diff
changeset
|
440 @param item: name of target item (used to get attachment node's name) |
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plugin pubsub attachments: partial implementation of pubsub-attachments protoXEP:
Goffi <goffi@goffi.org>
parents:
diff
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|
441 """ |
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442 attachment_node = self.get_attachment_node_name(service, node, item) |
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parents:
diff
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|
443 await self._p.subscribe(client, service, attachment_node) |
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parents:
diff
changeset
|
444 |
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diff
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445 def set_timestamp(self, attachment_elt: domish.Element, data: dict) -> None: |
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parents:
diff
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|
446 """Check if a ``timestamp`` attribute is set, parse it, and fill data |
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parents:
diff
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|
447 |
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Goffi <goffi@goffi.org>
parents:
diff
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|
448 @param attachments_elt: element where the ``timestamp`` attribute may be set |
ac255a0fbd4c
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parents:
diff
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|
449 @param data: data specific to the attachment (i.e. not the whole microblog data) |
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parents:
diff
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|
450 ``timestamp`` field will be set there if timestamp exists and is parsable |
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parents:
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|
451 """ |
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parents:
diff
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|
452 timestamp_raw = attachment_elt.getAttribute("timestamp") |
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plugin pubsub attachments: partial implementation of pubsub-attachments protoXEP:
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parents:
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|
453 if timestamp_raw: |
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parents:
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|
454 try: |
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parents:
diff
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|
455 timestamp = date_utils.date_parse(timestamp_raw) |
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Goffi <goffi@goffi.org>
parents:
diff
changeset
|
456 except date_utils.ParserError: |
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parents:
diff
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|
457 log.warning(f"can't parse timestamp: {timestamp_raw}") |
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|
458 else: |
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parents:
diff
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459 data["timestamp"] = timestamp |
ac255a0fbd4c
plugin pubsub attachments: partial implementation of pubsub-attachments protoXEP:
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parents:
diff
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|
460 |
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461 def noticed_get( |
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462 self, |
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|
463 client: SatXMPPEntity, |
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|
464 attachments_elt: domish.Element, |
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|
465 data: Dict[str, Any], |
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parents:
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|
466 ) -> None: |
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|
467 try: |
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468 noticed_elt = next(attachments_elt.elements(NS_PUBSUB_ATTACHMENTS, "noticed")) |
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|
469 except StopIteration: |
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parents:
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changeset
|
470 pass |
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|
471 else: |
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472 noticed_data = {"noticed": True} |
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|
473 self.set_timestamp(noticed_elt, noticed_data) |
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parents:
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changeset
|
474 data["noticed"] = noticed_data |
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parents:
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changeset
|
475 |
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|
476 def noticed_set( |
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parents:
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changeset
|
477 self, |
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plugin pubsub attachments: partial implementation of pubsub-attachments protoXEP:
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changeset
|
478 client: SatXMPPEntity, |
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|
479 data: Dict[str, Any], |
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|
480 former_elt: Optional[domish.Element], |
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parents:
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|
481 ) -> Optional[domish.Element]: |
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parents:
diff
changeset
|
482 """add or remove a <noticed> attachment |
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plugin pubsub attachments: partial implementation of pubsub-attachments protoXEP:
Goffi <goffi@goffi.org>
parents:
diff
changeset
|
483 |
ac255a0fbd4c
plugin pubsub attachments: partial implementation of pubsub-attachments protoXEP:
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parents:
diff
changeset
|
484 if data["noticed"] is True, element is added, if it's False, it's removed, and |
ac255a0fbd4c
plugin pubsub attachments: partial implementation of pubsub-attachments protoXEP:
Goffi <goffi@goffi.org>
parents:
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changeset
|
485 it's not present or None, the former element is kept. |
ac255a0fbd4c
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parents:
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changeset
|
486 """ |
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Goffi <goffi@goffi.org>
parents:
diff
changeset
|
487 noticed = data["extra"].get("noticed") |
ac255a0fbd4c
plugin pubsub attachments: partial implementation of pubsub-attachments protoXEP:
Goffi <goffi@goffi.org>
parents:
diff
changeset
|
488 if noticed is None: |
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Goffi <goffi@goffi.org>
parents:
diff
changeset
|
489 return former_elt |
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parents:
diff
changeset
|
490 elif noticed: |
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Goffi <goffi@goffi.org>
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|
491 return domish.Element( |
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|
492 (NS_PUBSUB_ATTACHMENTS, "noticed"), attribs={"timestamp": xmpp_date()} |
3864
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parents:
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changeset
|
493 ) |
ac255a0fbd4c
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Goffi <goffi@goffi.org>
parents:
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changeset
|
494 else: |
ac255a0fbd4c
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parents:
diff
changeset
|
495 return None |
ac255a0fbd4c
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Goffi <goffi@goffi.org>
parents:
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changeset
|
496 |
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|
497 def reactions_get( |
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changeset
|
498 self, |
ac255a0fbd4c
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parents:
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changeset
|
499 client: SatXMPPEntity, |
ac255a0fbd4c
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Goffi <goffi@goffi.org>
parents:
diff
changeset
|
500 attachments_elt: domish.Element, |
ac255a0fbd4c
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parents:
diff
changeset
|
501 data: Dict[str, Any], |
ac255a0fbd4c
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Goffi <goffi@goffi.org>
parents:
diff
changeset
|
502 ) -> None: |
ac255a0fbd4c
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parents:
diff
changeset
|
503 try: |
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parents:
3869
diff
changeset
|
504 reactions_elt = next( |
aa7197b67c26
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parents:
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diff
changeset
|
505 attachments_elt.elements(NS_PUBSUB_ATTACHMENTS, "reactions") |
3864
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Goffi <goffi@goffi.org>
parents:
diff
changeset
|
506 ) |
ac255a0fbd4c
plugin pubsub attachments: partial implementation of pubsub-attachments protoXEP:
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parents:
diff
changeset
|
507 except StopIteration: |
ac255a0fbd4c
plugin pubsub attachments: partial implementation of pubsub-attachments protoXEP:
Goffi <goffi@goffi.org>
parents:
diff
changeset
|
508 pass |
ac255a0fbd4c
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parents:
diff
changeset
|
509 else: |
3888
aa7197b67c26
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parents:
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diff
changeset
|
510 reactions_data = {"reactions": []} |
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parents:
3869
diff
changeset
|
511 reactions = reactions_data["reactions"] |
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parents:
3869
diff
changeset
|
512 for reaction_elt in reactions_elt.elements(NS_PUBSUB_ATTACHMENTS, "reaction"): |
aa7197b67c26
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parents:
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diff
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|
513 reactions.append(str(reaction_elt)) |
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|
514 self.set_timestamp(reactions_elt, reactions_data) |
3888
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parents:
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diff
changeset
|
515 data["reactions"] = reactions_data |
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diff
changeset
|
516 |
4037
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changeset
|
517 def reactions_set( |
3864
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parents:
diff
changeset
|
518 self, |
ac255a0fbd4c
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parents:
diff
changeset
|
519 client: SatXMPPEntity, |
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Goffi <goffi@goffi.org>
parents:
diff
changeset
|
520 data: Dict[str, Any], |
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|
521 former_elt: Optional[domish.Element], |
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diff
changeset
|
522 ) -> Optional[domish.Element]: |
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parents:
diff
changeset
|
523 """update the <reaction> attachment""" |
3888
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parents:
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diff
changeset
|
524 reactions_data = data["extra"].get("reactions") |
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parents:
3869
diff
changeset
|
525 if reactions_data is None: |
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parents:
diff
changeset
|
526 return former_elt |
3888
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parents:
3869
diff
changeset
|
527 operation_type = reactions_data.get("operation", "update") |
3864
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diff
changeset
|
528 if operation_type == "update": |
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|
529 former_reactions = ( |
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|
530 {str(r) for r in former_elt.elements(NS_PUBSUB_ATTACHMENTS, "reaction")} |
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|
531 if former_elt is not None |
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|
532 else set() |
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|
533 ) |
3888
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parents:
3869
diff
changeset
|
534 added_reactions = set(reactions_data.get("add") or []) |
aa7197b67c26
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Goffi <goffi@goffi.org>
parents:
3869
diff
changeset
|
535 removed_reactions = set(reactions_data.get("remove") or []) |
aa7197b67c26
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parents:
3869
diff
changeset
|
536 reactions = list((former_reactions | added_reactions) - removed_reactions) |
3864
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parents:
diff
changeset
|
537 elif operation_type == "replace": |
3888
aa7197b67c26
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Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
538 reactions = reactions_data.get("reactions") or [] |
3864
ac255a0fbd4c
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parents:
diff
changeset
|
539 else: |
ac255a0fbd4c
plugin pubsub attachments: partial implementation of pubsub-attachments protoXEP:
Goffi <goffi@goffi.org>
parents:
diff
changeset
|
540 raise exceptions.DataError(f"invalid reaction operation: {operation_type!r}") |
ac255a0fbd4c
plugin pubsub attachments: partial implementation of pubsub-attachments protoXEP:
Goffi <goffi@goffi.org>
parents:
diff
changeset
|
541 if reactions: |
3888
aa7197b67c26
component AP gateway: AP <=> XMPP reactions conversions:
Goffi <goffi@goffi.org>
parents:
3869
diff
changeset
|
542 reactions_elt = domish.Element( |
4270
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4263
diff
changeset
|
543 (NS_PUBSUB_ATTACHMENTS, "reactions"), attribs={"timestamp": xmpp_date()} |
3864
ac255a0fbd4c
plugin pubsub attachments: partial implementation of pubsub-attachments protoXEP:
Goffi <goffi@goffi.org>
parents:
diff
changeset
|
544 ) |
3888
aa7197b67c26
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Goffi <goffi@goffi.org>
parents:
3869
diff
changeset
|
545 for reactions_data in reactions: |
aa7197b67c26
component AP gateway: AP <=> XMPP reactions conversions:
Goffi <goffi@goffi.org>
parents:
3869
diff
changeset
|
546 reactions_elt.addElement("reaction", content=reactions_data) |
aa7197b67c26
component AP gateway: AP <=> XMPP reactions conversions:
Goffi <goffi@goffi.org>
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547 return reactions_elt |
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548 else: |
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549 return None |
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550 |
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551 |
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552 @implementer(iwokkel.IDisco) |
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553 class PubsubAttachments_Handler(xmlstream.XMPPHandler): |
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554 |
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555 def getDiscoInfo(self, requestor, service, nodeIdentifier=""): |
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556 return [disco.DiscoFeature(NS_PUBSUB_ATTACHMENTS)] |
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557 |
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558 def getDiscoItems(self, requestor, service, nodeIdentifier=""): |
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559 return [] |