Mercurial > libervia-backend
annotate sat/plugins/plugin_xep_0234.py @ 3969:8e7d5796fb23
plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Mon, 31 Oct 2022 04:09:34 +0100 |
| parents | 3ef988734869 |
| children | 524856bd7b19 |
| rev | line source |
|---|---|
| 3028 | 1 #!/usr/bin/env python3 |
| 3137 | 2 |
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3 # SàT plugin for Jingle File Transfer (XEP-0234) |
| 3479 | 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 from collections import namedtuple |
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20 import mimetypes |
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21 import os.path |
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22 |
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23 from twisted.internet import defer |
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24 from twisted.internet import reactor |
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25 from twisted.internet import error as internet_error |
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26 from twisted.python import failure |
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27 from twisted.words.protocols.jabber import jid |
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28 from twisted.words.protocols.jabber.xmlstream import XMPPHandler |
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29 from twisted.words.xish import domish |
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30 from wokkel import disco, iwokkel |
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31 from zope.interface import implementer |
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32 |
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33 from sat.core import exceptions |
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34 from sat.core.constants import Const as C |
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35 from sat.core.i18n import D_, _ |
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36 from sat.core.log import getLogger |
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37 from sat.tools import utils |
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38 from sat.tools import stream |
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39 from sat.tools.common import date_utils |
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40 from sat.tools.common import regex |
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41 |
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42 |
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43 log = getLogger(__name__) |
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44 |
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45 NS_JINGLE_FT = "urn:xmpp:jingle:apps:file-transfer:5" |
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46 |
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47 PLUGIN_INFO = { |
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48 C.PI_NAME: "Jingle File Transfer", |
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49 C.PI_IMPORT_NAME: "XEP-0234", |
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50 C.PI_TYPE: "XEP", |
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51 C.PI_MODES: C.PLUG_MODE_BOTH, |
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52 C.PI_PROTOCOLS: ["XEP-0234"], |
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53 C.PI_DEPENDENCIES: ["XEP-0166", "XEP-0300", "FILE"], |
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54 C.PI_MAIN: "XEP_0234", |
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55 C.PI_HANDLER: "yes", |
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56 C.PI_DESCRIPTION: _("""Implementation of Jingle File Transfer"""), |
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57 } |
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58 |
| 3040 | 59 EXTRA_ALLOWED = {"path", "namespace", "file_desc", "file_hash", "hash_algo"} |
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60 Range = namedtuple("Range", ("offset", "length")) |
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61 |
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62 |
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63 class XEP_0234: |
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64 # TODO: assure everything is closed when file is sent or session terminate is received |
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65 # TODO: call self._f.unregister when unloading order will be managing (i.e. when |
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66 # dependencies will be unloaded at the end) |
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67 Range = Range # we copy the class here, so it can be used by other plugins |
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68 name = PLUGIN_INFO[C.PI_NAME] |
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69 human_name = D_("file transfer") |
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70 |
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71 def __init__(self, host): |
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72 log.info(_("plugin Jingle File Transfer initialization")) |
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73 self.host = host |
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74 host.registerNamespace("jingle-ft", NS_JINGLE_FT) |
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75 self._j = host.plugins["XEP-0166"] # shortcut to access jingle |
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76 self._j.registerApplication(NS_JINGLE_FT, self) |
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77 self._f = host.plugins["FILE"] |
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78 self._f.register(self, priority=10000) |
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79 self._hash = self.host.plugins["XEP-0300"] |
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80 host.bridge.addMethod( |
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81 "fileJingleSend", |
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82 ".plugin", |
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83 in_sign="ssssa{ss}s", |
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84 out_sign="", |
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85 method=self._fileSend, |
| 3028 | 86 async_=True, |
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87 ) |
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88 host.bridge.addMethod( |
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89 "fileJingleRequest", |
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90 ".plugin", |
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91 in_sign="sssssa{ss}s", |
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92 out_sign="s", |
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93 method=self._fileJingleRequest, |
| 3028 | 94 async_=True, |
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95 ) |
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96 |
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97 def getHandler(self, client): |
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98 return XEP_0234_handler() |
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99 |
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100 def getProgressId(self, session, content_name): |
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101 """Return a unique progress ID |
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102 |
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103 @param session(dict): jingle session |
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104 @param content_name(unicode): name of the content |
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105 @return (unicode): unique progress id |
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106 """ |
| 3028 | 107 return "{}_{}".format(session["id"], content_name) |
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108 |
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109 async def canHandleFileSend(self, client, peer_jid, filepath): |
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110 if peer_jid.resource: |
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111 return await self.host.hasFeature(client, NS_JINGLE_FT, peer_jid) |
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112 else: |
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113 # if we have a bare jid, Jingle Message Initiation will be tried |
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114 return True |
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115 |
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116 # generic methods |
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117 |
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118 def buildFileElement( |
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119 self, client, name=None, file_hash=None, hash_algo=None, size=None, |
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120 mime_type=None, desc=None, modified=None, transfer_range=None, path=None, |
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121 namespace=None, file_elt=None, **kwargs): |
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122 """Generate a <file> element with available metadata |
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123 |
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124 @param file_hash(unicode, None): hash of the file |
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125 empty string to set <hash-used/> element |
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126 @param hash_algo(unicode, None): hash algorithm used |
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127 if file_hash is None and hash_algo is set, a <hash-used/> element will be |
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128 generated |
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129 @param transfer_range(Range, None): where transfer must start/stop |
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130 @param modified(int, unicode, None): date of last modification |
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131 0 to use current date |
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132 int to use an unix timestamp |
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133 else must be an unicode string which will be used as it (it must be an XMPP |
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134 time) |
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135 @param file_elt(domish.Element, None): element to use |
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136 None to create a new one |
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137 @param **kwargs: data for plugin extension (ignored by default) |
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138 @return (domish.Element): generated element |
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139 @trigger XEP-0234_buildFileElement(file_elt, extra_args): can be used to extend |
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140 elements to add |
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141 """ |
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142 if file_elt is None: |
| 3028 | 143 file_elt = domish.Element((NS_JINGLE_FT, "file")) |
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144 for name, value in ( |
| 3028 | 145 ("name", name), |
| 146 ("size", size), | |
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147 ("media-type", mime_type), |
| 3028 | 148 ("desc", desc), |
| 149 ("path", path), | |
| 150 ("namespace", namespace), | |
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151 ): |
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152 if value is not None: |
| 3028 | 153 file_elt.addElement(name, content=str(value)) |
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154 |
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155 if modified is not None: |
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156 if isinstance(modified, int): |
| 3028 | 157 file_elt.addElement("date", utils.xmpp_date(modified or None)) |
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158 else: |
| 3028 | 159 file_elt.addElement("date", modified) |
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160 elif "created" in kwargs: |
| 3028 | 161 file_elt.addElement("date", utils.xmpp_date(kwargs.pop("created"))) |
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162 |
| 3028 | 163 range_elt = file_elt.addElement("range") |
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164 if transfer_range is not None: |
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165 if transfer_range.offset is not None: |
| 3028 | 166 range_elt["offset"] = transfer_range.offset |
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167 if transfer_range.length is not None: |
| 3028 | 168 range_elt["length"] = transfer_range.length |
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169 if file_hash is not None: |
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170 if not file_hash: |
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171 file_elt.addChild(self._hash.buildHashUsedElt()) |
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172 else: |
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173 file_elt.addChild(self._hash.buildHashElt(file_hash, hash_algo)) |
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174 elif hash_algo is not None: |
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175 file_elt.addChild(self._hash.buildHashUsedElt(hash_algo)) |
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176 self.host.trigger.point( |
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177 "XEP-0234_buildFileElement", client, file_elt, extra_args=kwargs) |
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178 if kwargs: |
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179 for kw in kwargs: |
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180 log.debug("ignored keyword: {}".format(kw)) |
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181 return file_elt |
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182 |
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183 def buildFileElementFromDict(self, client, file_data, **kwargs): |
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184 """like buildFileElement but get values from a file_data dict |
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185 |
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186 @param file_data(dict): metadata to use |
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187 @param **kwargs: data to override |
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188 """ |
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189 if kwargs: |
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190 file_data = file_data.copy() |
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191 file_data.update(kwargs) |
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192 try: |
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193 file_data["mime_type"] = ( |
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194 f'{file_data.pop("media_type")}/{file_data.pop("media_subtype")}' |
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195 ) |
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196 except KeyError: |
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197 pass |
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198 return self.buildFileElement(client, **file_data) |
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199 |
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200 async def parseFileElement( |
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201 self, client, file_elt, file_data=None, given=False, parent_elt=None, |
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202 keep_empty_range=False): |
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203 """Parse a <file> element and file dictionary accordingly |
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204 |
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205 @param file_data(dict, None): dict where the data will be set |
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206 following keys will be set (and overwritten if they already exist): |
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207 name, file_hash, hash_algo, size, mime_type, desc, path, namespace, range |
|
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208 if None, a new dict is created |
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209 @param given(bool): if True, prefix hash key with "given_" |
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210 @param parent_elt(domish.Element, None): parent of the file element |
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211 if set, file_elt must not be set |
| 3040 | 212 @param keep_empty_range(bool): if True, keep empty range (i.e. range when offset |
| 213 and length are None). | |
| 214 Empty range is useful to know if a peer_jid can handle range | |
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215 @return (dict): file_data |
| 3040 | 216 @trigger XEP-0234_parseFileElement(file_elt, file_data): can be used to parse new |
| 217 elements | |
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218 @raise exceptions.NotFound: there is not <file> element in parent_elt |
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219 @raise exceptions.DataError: if file_elt uri is not NS_JINGLE_FT |
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220 """ |
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221 if parent_elt is not None: |
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222 if file_elt is not None: |
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223 raise exceptions.InternalError( |
| 3028 | 224 "file_elt must be None if parent_elt is set" |
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225 ) |
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226 try: |
| 3028 | 227 file_elt = next(parent_elt.elements(NS_JINGLE_FT, "file")) |
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228 except StopIteration: |
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229 raise exceptions.NotFound() |
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230 else: |
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231 if not file_elt or file_elt.uri != NS_JINGLE_FT: |
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232 raise exceptions.DataError( |
| 3028 | 233 "invalid <file> element: {stanza}".format(stanza=file_elt.toXml()) |
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234 ) |
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235 |
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236 if file_data is None: |
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237 file_data = {} |
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238 |
| 3028 | 239 for name in ("name", "desc", "path", "namespace"): |
|
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240 try: |
| 3028 | 241 file_data[name] = str(next(file_elt.elements(NS_JINGLE_FT, name))) |
|
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242 except StopIteration: |
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243 pass |
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244 |
| 3028 | 245 name = file_data.get("name") |
| 246 if name == "..": | |
|
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247 # we don't want to go to parent dir when joining to a path |
| 3028 | 248 name = "--" |
| 249 file_data["name"] = name | |
| 3040 | 250 elif name is not None and ("/" in name or "\\" in name): |
| 3028 | 251 file_data["name"] = regex.pathEscape(name) |
|
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252 |
|
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253 try: |
| 3028 | 254 file_data["mime_type"] = str( |
| 255 next(file_elt.elements(NS_JINGLE_FT, "media-type")) | |
|
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256 ) |
|
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257 except StopIteration: |
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258 pass |
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259 |
|
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260 try: |
| 3028 | 261 file_data["size"] = int( |
| 262 str(next(file_elt.elements(NS_JINGLE_FT, "size"))) | |
|
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263 ) |
|
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264 except StopIteration: |
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265 pass |
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266 |
|
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267 try: |
| 3028 | 268 file_data["modified"] = date_utils.date_parse( |
| 269 next(file_elt.elements(NS_JINGLE_FT, "date")) | |
|
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270 ) |
|
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271 except StopIteration: |
|
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|
272 pass |
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273 |
|
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274 try: |
| 3028 | 275 range_elt = next(file_elt.elements(NS_JINGLE_FT, "range")) |
|
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276 except StopIteration: |
|
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changeset
|
277 pass |
|
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|
278 else: |
|
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279 offset = range_elt.getAttribute("offset") |
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280 length = range_elt.getAttribute("length") |
|
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|
281 if offset or length or keep_empty_range: |
| 3028 | 282 file_data["transfer_range"] = Range(offset=offset, length=length) |
|
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|
283 |
| 3028 | 284 prefix = "given_" if given else "" |
| 285 hash_algo_key, hash_key = "hash_algo", prefix + "file_hash" | |
|
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|
286 try: |
|
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287 file_data[hash_algo_key], file_data[hash_key] = self._hash.parseHashElt( |
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288 file_elt |
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289 ) |
|
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290 except exceptions.NotFound: |
|
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291 pass |
|
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|
292 |
|
3314
5887fb414758
component file sharing: add/parse affiliation when possible
Goffi <goffi@goffi.org>
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3303
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changeset
|
293 self.host.trigger.point("XEP-0234_parseFileElement", client, file_elt, file_data) |
|
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294 |
|
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295 return file_data |
|
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296 |
|
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297 # bridge methods |
|
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298 |
|
3403
404d4b29de52
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|
299 def _fileSend( |
|
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300 self, |
|
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301 peer_jid, |
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302 filepath, |
|
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|
303 name="", |
|
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304 file_desc="", |
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305 extra=None, |
|
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|
306 profile=C.PROF_KEY_NONE, |
|
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307 ): |
|
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changeset
|
308 client = self.host.getClient(profile) |
|
3403
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|
309 return defer.ensureDeferred(self.fileSend( |
|
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310 client, |
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311 jid.JID(peer_jid), |
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312 filepath, |
|
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|
313 name or None, |
|
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314 file_desc or None, |
|
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|
315 extra or None, |
|
3403
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changeset
|
316 )) |
|
1528
1c71d7335d02
plugin XEP-0234: jingle file transfer first draft
Goffi <goffi@goffi.org>
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changeset
|
317 |
|
3403
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changeset
|
318 async def fileSend( |
|
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319 self, client, peer_jid, filepath, name, file_desc=None, extra=None |
|
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320 ): |
|
1585
846a39900fa6
plugins XEP-0096, XEP-0260, file: sendFile method is managed by file plugin, which choose the best available method + progress_id fix
Goffi <goffi@goffi.org>
parents:
1575
diff
changeset
|
321 """Send a file using jingle file transfer |
|
846a39900fa6
plugins XEP-0096, XEP-0260, file: sendFile method is managed by file plugin, which choose the best available method + progress_id fix
Goffi <goffi@goffi.org>
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1575
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changeset
|
322 |
|
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323 @param peer_jid(jid.JID): destinee jid |
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324 @param filepath(str): absolute path of the file |
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325 @param name(unicode, None): name of the file |
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326 @param file_desc(unicode, None): description of the file |
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327 @return (D(unicode)): progress id |
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328 """ |
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329 progress_id_d = defer.Deferred() |
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330 if extra is None: |
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331 extra = {} |
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332 if file_desc is not None: |
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333 extra["file_desc"] = file_desc |
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334 encrypted = extra.pop("encrypted", False) |
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335 await self._j.initiate( |
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336 client, |
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337 peer_jid, |
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338 [ |
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339 { |
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340 "app_ns": NS_JINGLE_FT, |
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341 "senders": self._j.ROLE_INITIATOR, |
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342 "app_kwargs": { |
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343 "filepath": filepath, |
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344 "name": name, |
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345 "extra": extra, |
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346 "progress_id_d": progress_id_d, |
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347 }, |
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348 } |
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349 ], |
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350 encrypted = encrypted |
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351 ) |
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352 return await progress_id_d |
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353 |
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354 def _fileJingleRequest( |
| 3040 | 355 self, peer_jid, filepath, name="", file_hash="", hash_algo="", extra=None, |
| 356 profile=C.PROF_KEY_NONE): | |
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357 client = self.host.getClient(profile) |
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358 return defer.ensureDeferred(self.fileJingleRequest( |
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359 client, |
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360 jid.JID(peer_jid), |
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361 filepath, |
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362 name or None, |
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363 file_hash or None, |
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364 hash_algo or None, |
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365 extra or None, |
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366 )) |
|
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367 |
|
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368 async def fileJingleRequest( |
| 3040 | 369 self, client, peer_jid, filepath, name=None, file_hash=None, hash_algo=None, |
| 370 extra=None): | |
|
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371 """Request a file using jingle file transfer |
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372 |
|
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373 @param peer_jid(jid.JID): destinee jid |
|
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374 @param filepath(str): absolute path where the file will be downloaded |
|
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375 @param name(unicode, None): name of the file |
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376 @param file_hash(unicode, None): hash of the file |
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377 @return (D(unicode)): progress id |
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378 """ |
|
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379 progress_id_d = defer.Deferred() |
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380 if extra is None: |
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381 extra = {} |
|
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382 if file_hash is not None: |
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|
383 if hash_algo is None: |
| 3028 | 384 raise ValueError(_("hash_algo must be set if file_hash is set")) |
|
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385 extra["file_hash"] = file_hash |
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386 extra["hash_algo"] = hash_algo |
|
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|
387 else: |
|
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|
388 if hash_algo is not None: |
| 3028 | 389 raise ValueError(_("file_hash must be set if hash_algo is set")) |
|
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|
390 await self._j.initiate( |
|
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391 client, |
|
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392 peer_jid, |
|
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393 [ |
|
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394 { |
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|
395 "app_ns": NS_JINGLE_FT, |
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396 "senders": self._j.ROLE_RESPONDER, |
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397 "app_kwargs": { |
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398 "filepath": filepath, |
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399 "name": name, |
|
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400 "extra": extra, |
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401 "progress_id_d": progress_id_d, |
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402 }, |
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403 } |
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404 ], |
|
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|
405 ) |
|
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|
406 return await progress_id_d |
|
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|
407 |
|
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|
408 # jingle callbacks |
|
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|
409 |
|
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|
410 def jingleDescriptionElt( |
|
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|
411 self, client, session, content_name, filepath, name, extra, progress_id_d |
|
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|
412 ): |
|
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|
413 return domish.Element((NS_JINGLE_FT, "description")) |
|
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|
414 |
|
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|
415 def jingleSessionInit( |
|
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416 self, client, session, content_name, filepath, name, extra, progress_id_d |
|
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417 ): |
|
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|
418 if extra is None: |
|
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|
419 extra = {} |
|
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|
420 else: |
|
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|
421 if not EXTRA_ALLOWED.issuperset(extra): |
|
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|
422 raise ValueError( |
| 3028 | 423 _("only the following keys are allowed in extra: {keys}").format( |
| 424 keys=", ".join(EXTRA_ALLOWED) | |
|
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425 ) |
|
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426 ) |
|
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|
427 progress_id_d.callback(self.getProgressId(session, content_name)) |
|
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428 content_data = session["contents"][content_name] |
|
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429 application_data = content_data["application_data"] |
|
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430 assert "file_path" not in application_data |
|
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431 application_data["file_path"] = filepath |
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432 file_data = application_data["file_data"] = {} |
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433 desc_elt = self.jingleDescriptionElt( |
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434 client, session, content_name, filepath, name, extra, progress_id_d) |
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435 file_elt = desc_elt.addElement("file") |
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436 |
| 3028 | 437 if content_data["senders"] == self._j.ROLE_INITIATOR: |
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438 # we send a file |
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439 if name is None: |
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440 name = os.path.basename(filepath) |
| 3028 | 441 file_data["date"] = utils.xmpp_date() |
| 442 file_data["desc"] = extra.pop("file_desc", "") | |
| 443 file_data["name"] = name | |
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444 mime_type = mimetypes.guess_type(name, strict=False)[0] |
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445 if mime_type is not None: |
| 3028 | 446 file_data["mime_type"] = mime_type |
| 447 file_data["size"] = os.path.getsize(filepath) | |
| 448 if "namespace" in extra: | |
| 449 file_data["namespace"] = extra["namespace"] | |
| 450 if "path" in extra: | |
| 451 file_data["path"] = extra["path"] | |
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452 self.buildFileElementFromDict( |
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453 client, file_data, file_elt=file_elt, file_hash="") |
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454 else: |
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455 # we request a file |
| 3028 | 456 file_hash = extra.pop("file_hash", "") |
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457 if not name and not file_hash: |
| 3028 | 458 raise ValueError(_("you need to provide at least name or file hash")) |
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459 if name: |
| 3028 | 460 file_data["name"] = name |
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461 if file_hash: |
| 3028 | 462 file_data["file_hash"] = file_hash |
| 463 file_data["hash_algo"] = extra["hash_algo"] | |
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464 else: |
| 3028 | 465 file_data["hash_algo"] = self._hash.getDefaultAlgo() |
| 466 if "namespace" in extra: | |
| 467 file_data["namespace"] = extra["namespace"] | |
| 468 if "path" in extra: | |
| 469 file_data["path"] = extra["path"] | |
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470 self.buildFileElementFromDict(client, file_data, file_elt=file_elt) |
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471 |
|
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472 return desc_elt |
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473 |
|
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474 async def jingleRequestConfirmation( |
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475 self, client, action, session, content_name, desc_elt |
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476 ): |
|
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477 """This method request confirmation for a jingle session""" |
|
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478 content_data = session["contents"][content_name] |
| 3028 | 479 senders = content_data["senders"] |
|
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480 if senders not in (self._j.ROLE_INITIATOR, self._j.ROLE_RESPONDER): |
| 3028 | 481 log.warning("Bad sender, assuming initiator") |
| 482 senders = content_data["senders"] = self._j.ROLE_INITIATOR | |
|
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483 # first we grab file informations |
|
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|
484 try: |
| 3028 | 485 file_elt = next(desc_elt.elements(NS_JINGLE_FT, "file")) |
|
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486 except StopIteration: |
|
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487 raise failure.Failure(exceptions.DataError) |
|
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488 file_data = {"progress_id": self.getProgressId(session, content_name)} |
|
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|
489 |
|
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490 if senders == self._j.ROLE_RESPONDER: |
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|
491 # we send the file |
|
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492 return await self._fileSendingRequestConf( |
|
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493 client, session, content_data, content_name, file_data, file_elt |
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|
494 ) |
|
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|
495 else: |
|
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|
496 # we receive the file |
|
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|
497 return await self._file_receiving_request_conf( |
|
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498 client, session, content_data, content_name, file_data, file_elt |
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|
499 ) |
|
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changeset
|
500 |
|
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|
501 async def _fileSendingRequestConf( |
|
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|
502 self, client, session, content_data, content_name, file_data, file_elt |
|
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|
503 ): |
|
2502
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2489
diff
changeset
|
504 """parse file_elt, and handle file retrieving/permission checking""" |
|
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|
505 await self.parseFileElement(client, file_elt, file_data) |
|
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|
506 content_data["application_data"]["file_data"] = file_data |
|
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|
507 finished_d = content_data["finished_d"] = defer.Deferred() |
|
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changeset
|
508 |
|
7ad5f2c4e34a
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changeset
|
509 # confirmed_d is a deferred returning confimed value (only used if cont is False) |
|
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|
510 cont, confirmed_d = self.host.trigger.returnPoint( |
|
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|
511 "XEP-0234_fileSendingRequest", |
|
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|
512 client, |
|
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|
513 session, |
|
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|
514 content_data, |
|
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|
515 content_name, |
|
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|
516 file_data, |
|
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|
517 file_elt, |
|
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|
518 ) |
|
2502
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XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
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changeset
|
519 if not cont: |
|
3333
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|
520 confirmed = await confirmed_d |
|
2502
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diff
changeset
|
521 if confirmed: |
|
7ad5f2c4e34a
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|
522 args = [client, session, content_name, content_data] |
|
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|
523 finished_d.addCallbacks( |
|
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|
524 self._finishedCb, self._finishedEb, args, None, args |
|
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|
525 ) |
|
3333
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|
526 return confirmed |
|
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changeset
|
527 |
| 3028 | 528 log.warning(_("File continue is not implemented yet")) |
|
3333
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|
529 return False |
|
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2489
diff
changeset
|
530 |
|
3969
8e7d5796fb23
plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
3859
diff
changeset
|
531 async def _file_receiving_request_conf( |
|
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|
532 self, client, session, content_data, content_name, file_data, file_elt |
|
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|
533 ): |
|
2502
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diff
changeset
|
534 """parse file_elt, and handle user permission/file opening""" |
|
3333
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|
535 await self.parseFileElement(client, file_elt, file_data, given=True) |
|
2502
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changeset
|
536 try: |
|
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|
537 hash_algo, file_data["given_file_hash"] = self._hash.parseHashElt(file_elt) |
|
2502
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changeset
|
538 except exceptions.NotFound: |
|
1528
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changeset
|
539 try: |
|
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diff
changeset
|
540 hash_algo = self._hash.parseHashUsedElt(file_elt) |
|
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changeset
|
541 except exceptions.NotFound: |
|
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diff
changeset
|
542 raise failure.Failure(exceptions.DataError) |
|
1620
4dd07d026214
plugin XEP-0234: hash checksum proper handling
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1618
diff
changeset
|
543 |
|
4dd07d026214
plugin XEP-0234: hash checksum proper handling
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1618
diff
changeset
|
544 if hash_algo is not None: |
|
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changeset
|
545 file_data["hash_algo"] = hash_algo |
|
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changeset
|
546 file_data["hash_hasher"] = hasher = self._hash.getHasher(hash_algo) |
|
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|
547 file_data["data_cb"] = lambda data: hasher.update(data) |
|
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plugin XEP-0234: hash checksum proper handling
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|
548 |
|
4dd07d026214
plugin XEP-0234: hash checksum proper handling
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|
549 try: |
|
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550 file_data["size"] = int(file_data["size"]) |
|
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|
551 except ValueError: |
|
1c71d7335d02
plugin XEP-0234: jingle file transfer first draft
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|
552 raise failure.Failure(exceptions.DataError) |
|
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plugin XEP-0234: jingle file transfer first draft
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changeset
|
553 |
|
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|
554 name = file_data["name"] |
|
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|
555 if "/" in name or "\\" in name: |
|
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|
556 log.warning( |
| 3028 | 557 "File name contain path characters, we replace them: {}".format(name) |
|
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|
558 ) |
|
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diff
changeset
|
559 file_data["name"] = name.replace("/", "_").replace("\\", "_") |
|
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|
560 |
|
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|
561 content_data["application_data"]["file_data"] = file_data |
|
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parents:
diff
changeset
|
562 |
|
1c71d7335d02
plugin XEP-0234: jingle file transfer first draft
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parents:
diff
changeset
|
563 # now we actualy request permission to user |
|
1574
babd97d80049
plugins XEP-0234, file: moved file request dialog to file plugin
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parents:
1571
diff
changeset
|
564 |
|
2502
7ad5f2c4e34a
XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
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|
565 # deferred to track end of transfer |
|
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|
566 finished_d = content_data["finished_d"] = defer.Deferred() |
|
3333
ac9342f359e9
plugin XEP-0329: download thumbnails:
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|
567 confirmed = await self._f.getDestDir( |
|
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|
568 client, session["peer_jid"], content_data, file_data, stream_object=True |
|
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|
569 ) |
|
3333
ac9342f359e9
plugin XEP-0329: download thumbnails:
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diff
changeset
|
570 if confirmed: |
|
3969
8e7d5796fb23
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3859
diff
changeset
|
571 await self.host.trigger.asyncPoint( |
|
8e7d5796fb23
plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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3859
diff
changeset
|
572 "XEP-0234_file_receiving_request_conf", |
|
8e7d5796fb23
plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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diff
changeset
|
573 client, session, content_data, file_elt |
|
8e7d5796fb23
plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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diff
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|
574 ) |
|
3333
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|
575 args = [client, session, content_name, content_data] |
|
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|
576 finished_d.addCallbacks( |
|
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changeset
|
577 self._finishedCb, self._finishedEb, args, None, args |
|
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|
578 ) |
|
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changeset
|
579 return confirmed |
|
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changeset
|
580 |
|
3969
8e7d5796fb23
plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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diff
changeset
|
581 async def jingleHandler(self, client, action, session, content_name, desc_elt): |
|
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|
582 content_data = session["contents"][content_name] |
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|
583 application_data = content_data["application_data"] |
|
1556
cbfbe028d099
plugin XEP-0166, XEP-0234, XEP-0261:
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parents:
1529
diff
changeset
|
584 if action in (self._j.A_ACCEPTED_ACK,): |
|
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plugin XEP-0234: jingle file transfer first draft
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changeset
|
585 pass |
|
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cbfbe028d099
plugin XEP-0166, XEP-0234, XEP-0261:
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diff
changeset
|
586 elif action == self._j.A_SESSION_INITIATE: |
| 3028 | 587 file_elt = next(desc_elt.elements(NS_JINGLE_FT, "file")) |
|
1556
cbfbe028d099
plugin XEP-0166, XEP-0234, XEP-0261:
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diff
changeset
|
588 try: |
| 3028 | 589 next(file_elt.elements(NS_JINGLE_FT, "range")) |
|
1556
cbfbe028d099
plugin XEP-0166, XEP-0234, XEP-0261:
Goffi <goffi@goffi.org>
parents:
1529
diff
changeset
|
590 except StopIteration: |
|
cbfbe028d099
plugin XEP-0166, XEP-0234, XEP-0261:
Goffi <goffi@goffi.org>
parents:
1529
diff
changeset
|
591 # initiator doesn't manage <range>, but we do so we advertise it |
| 3040 | 592 # FIXME: to be checked |
|
1556
cbfbe028d099
plugin XEP-0166, XEP-0234, XEP-0261:
Goffi <goffi@goffi.org>
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1529
diff
changeset
|
593 log.debug("adding <range> element") |
|
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changeset
|
594 file_elt.addElement("range") |
|
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plugin XEP-0234: jingle file transfer first draft
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parents:
diff
changeset
|
595 elif action == self._j.A_SESSION_ACCEPT: |
|
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changeset
|
596 assert not "stream_object" in content_data |
|
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|
597 file_data = application_data["file_data"] |
|
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changeset
|
598 file_path = application_data["file_path"] |
| 3028 | 599 senders = content_data["senders"] |
| 600 if senders != session["role"]: | |
|
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7ad5f2c4e34a
XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
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2489
diff
changeset
|
601 # we are receiving the file |
|
7ad5f2c4e34a
XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents:
2489
diff
changeset
|
602 try: |
|
7ad5f2c4e34a
XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents:
2489
diff
changeset
|
603 # did the responder specified the size of the file? |
| 3028 | 604 file_elt = next(desc_elt.elements(NS_JINGLE_FT, "file")) |
| 605 size_elt = next(file_elt.elements(NS_JINGLE_FT, "size")) | |
| 606 size = int(str(size_elt)) | |
|
2502
7ad5f2c4e34a
XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents:
2489
diff
changeset
|
607 except (StopIteration, ValueError): |
|
7ad5f2c4e34a
XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents:
2489
diff
changeset
|
608 size = None |
| 3040 | 609 # XXX: hash security is not critical here, so we just take the higher |
| 610 # mandatory one | |
|
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changeset
|
611 hasher = file_data["hash_hasher"] = self._hash.getHasher() |
| 3040 | 612 progress_id = self.getProgressId(session, content_name) |
| 613 try: | |
| 614 content_data["stream_object"] = stream.FileStreamObject( | |
| 615 self.host, | |
| 616 client, | |
| 617 file_path, | |
| 618 mode="wb", | |
| 619 uid=progress_id, | |
| 620 size=size, | |
| 621 data_cb=lambda data: hasher.update(data), | |
| 622 ) | |
| 623 except Exception as e: | |
| 624 self.host.bridge.progressError( | |
| 625 progress_id, C.PROGRESS_ERROR_FAILED, client.profile | |
| 626 ) | |
|
3969
8e7d5796fb23
plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
3859
diff
changeset
|
627 await self._j.terminate( |
| 3040 | 628 client, self._j.REASON_FAILED_APPLICATION, session) |
| 629 raise e | |
|
2502
7ad5f2c4e34a
XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents:
2489
diff
changeset
|
630 else: |
|
7ad5f2c4e34a
XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents:
2489
diff
changeset
|
631 # we are sending the file |
|
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diff
changeset
|
632 size = file_data["size"] |
| 3040 | 633 # XXX: hash security is not critical here, so we just take the higher |
| 634 # mandatory one | |
|
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diff
changeset
|
635 hasher = file_data["hash_hasher"] = self._hash.getHasher() |
|
56f94936df1e
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diff
changeset
|
636 content_data["stream_object"] = stream.FileStreamObject( |
|
2502
7ad5f2c4e34a
XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents:
2489
diff
changeset
|
637 self.host, |
|
7ad5f2c4e34a
XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents:
2489
diff
changeset
|
638 client, |
|
7ad5f2c4e34a
XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents:
2489
diff
changeset
|
639 file_path, |
|
7ad5f2c4e34a
XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents:
2489
diff
changeset
|
640 uid=self.getProgressId(session, content_name), |
|
7ad5f2c4e34a
XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents:
2489
diff
changeset
|
641 size=size, |
|
7ad5f2c4e34a
XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents:
2489
diff
changeset
|
642 data_cb=lambda data: hasher.update(data), |
|
2624
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code style reformatting using black
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diff
changeset
|
643 ) |
|
56f94936df1e
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diff
changeset
|
644 finished_d = content_data["finished_d"] = defer.Deferred() |
|
2489
e2a7bb875957
plugin pipe/stream, file transfert: refactoring and improvments:
Goffi <goffi@goffi.org>
parents:
2483
diff
changeset
|
645 args = [client, session, content_name, content_data] |
|
1571
c668081eba1c
plugins XEP-0234, XEP-0260, XEP-0261: jingle session termination is managed by application (XEP-0234) instead of transport
Goffi <goffi@goffi.org>
parents:
1568
diff
changeset
|
646 finished_d.addCallbacks(self._finishedCb, self._finishedEb, args, None, args) |
|
3969
8e7d5796fb23
plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
3859
diff
changeset
|
647 await self.host.trigger.asyncPoint( |
|
8e7d5796fb23
plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
3859
diff
changeset
|
648 "XEP-0234_jingle_handler", |
|
8e7d5796fb23
plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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3859
diff
changeset
|
649 client, session, content_data, desc_elt |
|
8e7d5796fb23
plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
3859
diff
changeset
|
650 ) |
|
1528
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plugin XEP-0234: jingle file transfer first draft
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parents:
diff
changeset
|
651 else: |
| 3028 | 652 log.warning("FIXME: unmanaged action {}".format(action)) |
|
3969
8e7d5796fb23
plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
3859
diff
changeset
|
653 return desc_elt |
|
1528
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plugin XEP-0234: jingle file transfer first draft
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parents:
diff
changeset
|
654 |
|
2489
e2a7bb875957
plugin pipe/stream, file transfert: refactoring and improvments:
Goffi <goffi@goffi.org>
parents:
2483
diff
changeset
|
655 def jingleSessionInfo(self, client, action, session, content_name, jingle_elt): |
|
1620
4dd07d026214
plugin XEP-0234: hash checksum proper handling
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1618
diff
changeset
|
656 """Called on session-info action |
|
4dd07d026214
plugin XEP-0234: hash checksum proper handling
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parents:
1618
diff
changeset
|
657 |
|
4dd07d026214
plugin XEP-0234: hash checksum proper handling
Goffi <goffi@goffi.org>
parents:
1618
diff
changeset
|
658 manage checksum, and ignore <received/> element |
|
4dd07d026214
plugin XEP-0234: hash checksum proper handling
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1618
diff
changeset
|
659 """ |
|
4dd07d026214
plugin XEP-0234: hash checksum proper handling
Goffi <goffi@goffi.org>
parents:
1618
diff
changeset
|
660 # TODO: manage <received/> element |
|
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changeset
|
661 content_data = session["contents"][content_name] |
|
1620
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1618
diff
changeset
|
662 elts = [elt for elt in jingle_elt.elements() if elt.uri == NS_JINGLE_FT] |
|
4dd07d026214
plugin XEP-0234: hash checksum proper handling
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parents:
1618
diff
changeset
|
663 if not elts: |
|
4dd07d026214
plugin XEP-0234: hash checksum proper handling
Goffi <goffi@goffi.org>
parents:
1618
diff
changeset
|
664 return |
|
4dd07d026214
plugin XEP-0234: hash checksum proper handling
Goffi <goffi@goffi.org>
parents:
1618
diff
changeset
|
665 for elt in elts: |
|
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diff
changeset
|
666 if elt.name == "received": |
|
1620
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plugin XEP-0234: hash checksum proper handling
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1618
diff
changeset
|
667 pass |
|
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changeset
|
668 elif elt.name == "checksum": |
|
1620
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plugin XEP-0234: hash checksum proper handling
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parents:
1618
diff
changeset
|
669 # we have received the file hash, we need to parse it |
|
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changeset
|
670 if content_data["senders"] == session["role"]: |
|
56f94936df1e
code style reformatting using black
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diff
changeset
|
671 log.warning( |
| 3028 | 672 "unexpected checksum received while we are the file sender" |
|
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673 ) |
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674 raise exceptions.DataError |
|
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675 info_content_name = elt["name"] |
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676 if info_content_name != content_name: |
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677 # it was for an other content... |
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678 return |
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679 file_data = content_data["application_data"]["file_data"] |
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680 try: |
|
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681 file_elt = next(elt.elements(NS_JINGLE_FT, "file")) |
|
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682 except StopIteration: |
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683 raise exceptions.DataError |
|
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684 algo, file_data["given_file_hash"] = self._hash.parseHashElt(file_elt) |
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685 if algo != file_data.get("hash_algo"): |
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686 log.warning( |
| 3028 | 687 "Hash algorithm used in given hash ({peer_algo}) doesn't correspond to the one we have used ({our_algo}) [{profile}]".format( |
|
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688 peer_algo=algo, |
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689 our_algo=file_data.get("hash_algo"), |
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690 profile=client.profile, |
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691 ) |
|
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692 ) |
|
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693 else: |
|
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694 self._receiverTryTerminate( |
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695 client, session, content_name, content_data |
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696 ) |
|
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697 else: |
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698 raise NotImplementedError |
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699 |
|
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|
700 def jingleTerminate(self, client, action, session, content_name, jingle_elt): |
|
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701 if jingle_elt.decline: |
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702 # progress is the only way to tell to frontends that session has been declined |
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703 progress_id = self.getProgressId(session, content_name) |
|
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704 self.host.bridge.progressError( |
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705 progress_id, C.PROGRESS_ERROR_DECLINED, client.profile |
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706 ) |
| 3040 | 707 elif not jingle_elt.success: |
| 708 progress_id = self.getProgressId(session, content_name) | |
| 709 first_child = jingle_elt.firstChildElement() | |
| 710 if first_child is not None: | |
| 711 reason = first_child.name | |
|
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|
712 if jingle_elt.text is not None: |
|
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|
713 reason = f"{reason} - {jingle_elt.text}" |
| 3040 | 714 else: |
| 715 reason = C.PROGRESS_ERROR_FAILED | |
| 716 self.host.bridge.progressError( | |
| 717 progress_id, reason, client.profile | |
| 718 ) | |
|
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|
719 |
|
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|
720 def _sendCheckSum(self, client, session, content_name, content_data): |
|
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|
721 """Send the session-info with the hash checksum""" |
|
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722 file_data = content_data["application_data"]["file_data"] |
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723 hasher = file_data["hash_hasher"] |
|
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724 hash_ = hasher.hexdigest() |
| 3028 | 725 log.debug("Calculated hash: {}".format(hash_)) |
|
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|
726 iq_elt, jingle_elt = self._j.buildSessionInfo(client, session) |
|
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727 checksum_elt = jingle_elt.addElement((NS_JINGLE_FT, "checksum")) |
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728 checksum_elt["creator"] = content_data["creator"] |
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729 checksum_elt["name"] = content_name |
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730 file_elt = checksum_elt.addElement("file") |
|
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|
731 file_elt.addChild(self._hash.buildHashElt(hash_)) |
|
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|
732 iq_elt.send() |
|
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|
733 |
|
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|
734 def _receiverTryTerminate( |
|
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|
735 self, client, session, content_name, content_data, last_try=False |
|
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|
736 ): |
|
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|
737 """Try to terminate the session |
|
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|
738 |
|
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|
739 This method must only be used by the receiver. |
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|
740 It check if transfer is finished, and hash available, |
|
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|
741 if everything is OK, it check hash and terminate the session |
|
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|
742 @param last_try(bool): if True this mean than session must be terminated even given hash is not available |
|
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|
743 @return (bool): True if session was terminated |
|
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|
744 """ |
|
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|
745 if not content_data.get("transfer_finished", False): |
|
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|
746 return False |
|
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|
747 file_data = content_data["application_data"]["file_data"] |
|
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|
748 given_hash = file_data.get("given_file_hash") |
|
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changeset
|
749 if given_hash is None: |
|
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|
750 if last_try: |
|
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|
751 log.warning( |
| 3028 | 752 "sender didn't sent hash checksum, we can't check the file [{profile}]".format( |
|
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|
753 profile=client.profile |
|
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|
754 ) |
|
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|
755 ) |
|
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changeset
|
756 self._j.delayedContentTerminate(client, session, content_name) |
|
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|
757 content_data["stream_object"].close() |
|
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|
758 return True |
|
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|
759 return False |
|
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|
760 hasher = file_data["hash_hasher"] |
| 3040 | 761 hash_ = hasher.hexdigest() |
|
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|
762 |
|
2502
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diff
changeset
|
763 if hash_ == given_hash: |
| 3040 | 764 log.info(f"Hash checked, file was successfully transfered: {hash_}") |
|
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|
765 progress_metadata = { |
|
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|
766 "hash": hash_, |
|
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|
767 "hash_algo": file_data["hash_algo"], |
|
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|
768 "hash_verified": C.BOOL_TRUE, |
|
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|
769 } |
|
1626
63cef4dbf2a4
core, plugins file, XEP-0234, bridge: progression api enhancement:
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parents:
1620
diff
changeset
|
770 error = None |
|
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|
771 else: |
| 3028 | 772 log.warning("Hash mismatch, the file was not transfered correctly") |
|
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|
773 progress_metadata = None |
| 3028 | 774 error = "Hash mismatch: given={algo}:{given}, calculated={algo}:{our}".format( |
|
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|
775 algo=file_data["hash_algo"], given=given_hash, our=hash_ |
|
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|
776 ) |
|
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changeset
|
777 |
|
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|
778 self._j.delayedContentTerminate(client, session, content_name) |
|
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|
779 content_data["stream_object"].close(progress_metadata, error) |
|
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|
780 # we may have the last_try timer still active, so we try to cancel it |
|
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|
781 try: |
|
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|
782 content_data["last_try_timer"].cancel() |
|
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|
783 except (KeyError, internet_error.AlreadyCalled): |
|
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|
784 pass |
|
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|
785 return True |
|
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changeset
|
786 |
|
2765
378188abe941
misc: replaced all "dummy" by the more conventional and readable "__" ("_" being used for gettext)
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changeset
|
787 def _finishedCb(self, __, client, session, content_name, content_data): |
| 3028 | 788 log.info("File transfer terminated") |
|
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|
789 if content_data["senders"] != session["role"]: |
|
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|
790 # we terminate the session only if we are the receiver, |
|
1571
c668081eba1c
plugins XEP-0234, XEP-0260, XEP-0261: jingle session termination is managed by application (XEP-0234) instead of transport
Goffi <goffi@goffi.org>
parents:
1568
diff
changeset
|
791 # as recommanded in XEP-0234 §2 (after example 6) |
|
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|
792 content_data["transfer_finished"] = True |
|
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|
793 if not self._receiverTryTerminate( |
|
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794 client, session, content_name, content_data |
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795 ): |
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796 # we have not received the hash yet, we wait 5 more seconds |
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797 content_data["last_try_timer"] = reactor.callLater( |
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798 5, |
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799 self._receiverTryTerminate, |
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800 client, |
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801 session, |
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802 content_name, |
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803 content_data, |
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804 last_try=True, |
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805 ) |
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806 else: |
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807 # we are the sender, we send the checksum |
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808 self._sendCheckSum(client, session, content_name, content_data) |
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809 content_data["stream_object"].close() |
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810 |
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811 def _finishedEb(self, failure, client, session, content_name, content_data): |
| 3028 | 812 log.warning("Error while streaming file: {}".format(failure)) |
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813 content_data["stream_object"].close() |
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814 self._j.contentTerminate( |
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815 client, session, content_name, reason=self._j.REASON_FAILED_TRANSPORT |
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816 ) |
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817 |
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818 |
| 3028 | 819 @implementer(iwokkel.IDisco) |
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820 class XEP_0234_handler(XMPPHandler): |
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821 |
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822 def getDiscoInfo(self, requestor, target, nodeIdentifier=""): |
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823 return [disco.DiscoFeature(NS_JINGLE_FT)] |
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824 |
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825 def getDiscoItems(self, requestor, target, nodeIdentifier=""): |
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826 return [] |