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annotate libervia/backend/plugins/plugin_xep_0166/models.py @ 4351:6a0a081485b8

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plugin autocrypt: Autocrypt protocol implementation: Implementation of autocrypt: `autocrypt` header is checked, and if present and no public key is known for the peer, the key is imported. `autocrypt` header is also added to outgoing message (only if an email gateway is detected). For the moment, the JID is use as identifier, but the real email used by gateway should be used in the future. rel 456
author Goffi <goffi@goffi.org>
date Fri, 28 Feb 2025 09:23:35 +0100
parents 0d7bb4df2343
children
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1 #!/usr/bin/env python3
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2
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3 # Libervia plugin for Jingle (XEP-0166)
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4 # Copyright (C) 2009-2021 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
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20 import abc
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21 from dataclasses import dataclass
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22 from typing import Awaitable, Callable, Union
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23
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24 from twisted.internet import defer
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25 from twisted.words.xish import domish
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26
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27 from libervia.backend.core import exceptions
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28 from libervia.backend.core.core_types import SatXMPPEntity
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29 from libervia.backend.core.i18n import _
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32 class BaseApplicationHandler(abc.ABC):
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33
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34 @abc.abstractmethod
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35 async def jingle_preflight(
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36 self, client: SatXMPPEntity, session: dict, description_elt: domish.Element
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37 ) -> None:
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38 """Called when preparation steps are needed by a plugin
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39
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40 Notably used by XEP-0353 when a initiation message is received
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41 """
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42 pass
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44 @abc.abstractmethod
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45 async def jingle_preflight_info(
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46 self,
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47 client: SatXMPPEntity,
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48 session: dict,
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49 info_type: str,
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50 info_data: dict | None = None,
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51 ) -> None:
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52 """Called when we have new information during preflight
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53
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54 Notably used by XEP-0353 to signal ringing
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55 """
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56 pass
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57
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58 @abc.abstractmethod
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59 async def jingle_preflight_cancel(
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60 self, client: SatXMPPEntity, session: dict, cancel_error: exceptions.CancelError
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61 ) -> None:
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62 """Called when preflight initiation is cancelled
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63
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64 Notably used by XEP-0353 when an initiation message is cancelled
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65 """
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66 pass
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67
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68 @abc.abstractmethod
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69 def jingle_request_confirmation(
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70 self,
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71 client: SatXMPPEntity,
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72 action: str,
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73 session: dict,
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74 content_name: str,
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75 desc_elt: domish.Element,
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76 ) -> Union[
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77 Callable[..., Union[bool, defer.Deferred]], Callable[..., Awaitable[bool]]
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78 ]:
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79 """If present, it is called on when session must be accepted.
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80 If not present, a generic accept dialog will be used.
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81
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82 @param session: Jingle Session
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83 @param desc_elt: <description> element
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84 @return: True if the session is accepted.
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85 A Deferred can be returned.
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86 """
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87 pass
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88
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89 @abc.abstractmethod
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90 def jingle_session_init(
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91 self, client: SatXMPPEntity, session: dict, content_name: str, *args, **kwargs
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92 ) -> Union[Callable[..., domish.Element], Callable[..., Awaitable[domish.Element]]]:
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93 """Must return the domish.Element used for initial content.
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94
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95 @param client: SatXMPPEntity instance
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96 @param session: Jingle Session
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97 @param content_name: Name of the content
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98 @return: The domish.Element used for initial content
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99 """
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100 pass
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101
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102 @abc.abstractmethod
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103 def jingle_handler(
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104 self,
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105 client: SatXMPPEntity,
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106 action: str,
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107 session: dict,
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108 content_name: str,
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109 transport_elt: domish.Element,
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110 ) -> Union[Callable[..., None], Callable[..., Awaitable[None]]]:
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111 """Called on several actions to negotiate the application or transport.
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112
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113 @param client: SatXMPPEntity instance
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114 @param action: Jingle action
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115 @param session: Jingle Session
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116 @param content_name: Name of the content
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117 @param transport_elt: Transport element
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118 """
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119 pass
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120
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121 @abc.abstractmethod
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122 def jingle_terminate(
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123 self,
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124 client: SatXMPPEntity,
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125 action: str,
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126 session: dict,
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127 content_name: str,
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128 reason_elt: domish.Element,
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129 ) -> Union[Callable[..., None], Callable[..., Awaitable[None]]]:
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130 """Called on session terminate, with reason_elt.
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131 May be used to clean session.
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132
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133 @param reason_elt: Reason element
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134 """
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135 pass
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136
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137
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138 class BaseTransportHandler(abc.ABC):
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139
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140 def is_usable(self, client, content_data: "ContentData") -> bool:
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141 """Return True if this transport is usable with given content
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142
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143 This method provides a default implementation that always returns True. It can
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144 be overridden in subclasses to provide custom usability logic.
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145
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146 @param client: SatXMPPEntity instance
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147 @param content_data: Jingle content data.
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148 @return: True if the transport is usable with this content, False otherwise
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149 """
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150 return True
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151
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152 @abc.abstractmethod
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153 def jingle_session_init(
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154 self, client: SatXMPPEntity, session: dict, content_name: str, *args, **kwargs
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155 ) -> Union[Callable[..., domish.Element], Callable[..., Awaitable[domish.Element]]]:
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156 """Must return the domish.Element used for initial content.
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157
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158 @param client: SatXMPPEntity instance
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159 @param session: Jingle Session
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160 @param content_name: Name of the content
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161 @return: The domish.Element used for initial content
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162 """
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163 pass
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164
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165 @abc.abstractmethod
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166 def jingle_handler(
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167 self,
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168 client: SatXMPPEntity,
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169 action: str,
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170 session: dict,
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171 content_name: str,
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172 reason_elt: domish.Element,
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173 ) -> Union[Callable[..., None], Callable[..., Awaitable[None]]]:
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174 """Called on several actions to negotiate the application or transport.
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175
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176 @param client: SatXMPPEntity instance
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177 @param action: Jingle action
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178 @param session: Jingle Session
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179 @param content_name: Name of the content
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180 @param reason_elt: <reason> element
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181 """
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182 pass
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183
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184
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185 @dataclass(frozen=True)
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186 class ApplicationData:
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187 namespace: str
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188 handler: BaseApplicationHandler
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189 priority: int
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190
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191
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192 @dataclass(frozen=True)
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193 class TransportData:
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194 namespace: str
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195 handler: BaseTransportHandler
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196 priority: int
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197
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198
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199 @dataclass(frozen=True)
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200 class ContentData:
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201 application: ApplicationData
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202 app_args: list
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203 app_kwargs: dict
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204 transport_data: dict
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205 content_name: str