Mercurial > libervia-backend
annotate sat/plugins/plugin_xep_0234.py @ 3227:6d19a99172d7
changelog: update
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Sun, 22 Mar 2020 18:47:59 +0100 |
| parents | 559a625a236b |
| children | f17379123571 |
| rev | line source |
|---|---|
| 3028 | 1 #!/usr/bin/env python3 |
| 3137 | 2 |
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3 |
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4 # SAT plugin for Jingle File Transfer (XEP-0234) |
| 3136 | 5 # Copyright (C) 2009-2020 Jérôme Poisson (goffi@goffi.org) |
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6 |
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7 # This program is free software: you can redistribute it and/or modify |
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8 # it under the terms of the GNU Affero General Public License as published by |
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9 # the Free Software Foundation, either version 3 of the License, or |
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10 # (at your option) any later version. |
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11 |
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12 # This program is distributed in the hope that it will be useful, |
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 # GNU Affero General Public License for more details. |
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16 |
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17 # You should have received a copy of the GNU Affero General Public License |
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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19 |
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20 from sat.core.i18n import _ |
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21 from sat.core.constants import Const as C |
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22 from sat.core.log import getLogger |
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23 |
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24 log = getLogger(__name__) |
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25 from sat.core import exceptions |
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26 from wokkel import disco, iwokkel |
| 3028 | 27 from zope.interface import implementer |
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28 from sat.tools import utils |
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29 from sat.tools import stream |
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30 from sat.tools.common import date_utils |
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31 import os.path |
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32 from twisted.words.xish import domish |
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33 from twisted.words.protocols.jabber import jid |
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34 from twisted.python import failure |
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35 from twisted.words.protocols.jabber.xmlstream import XMPPHandler |
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36 from twisted.internet import defer |
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37 from twisted.internet import reactor |
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38 from twisted.internet import error as internet_error |
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39 from collections import namedtuple |
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40 from sat.tools.common import regex |
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41 import mimetypes |
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42 |
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43 |
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44 NS_JINGLE_FT = "urn:xmpp:jingle:apps:file-transfer:5" |
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45 |
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46 PLUGIN_INFO = { |
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47 C.PI_NAME: "Jingle File Transfer", |
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48 C.PI_IMPORT_NAME: "XEP-0234", |
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49 C.PI_TYPE: "XEP", |
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50 C.PI_MODES: C.PLUG_MODE_BOTH, |
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51 C.PI_PROTOCOLS: ["XEP-0234"], |
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52 C.PI_DEPENDENCIES: ["XEP-0166", "XEP-0300", "FILE"], |
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53 C.PI_MAIN: "XEP_0234", |
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54 C.PI_HANDLER: "yes", |
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55 C.PI_DESCRIPTION: _("""Implementation of Jingle File Transfer"""), |
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56 } |
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57 |
| 3040 | 58 EXTRA_ALLOWED = {"path", "namespace", "file_desc", "file_hash", "hash_algo"} |
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59 Range = namedtuple("Range", ("offset", "length")) |
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60 |
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61 |
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62 class XEP_0234(object): |
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63 # TODO: assure everything is closed when file is sent or session terminate is received |
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64 # TODO: call self._f.unregister when unloading order will be managing (i.e. when dependencies will be unloaded at the end) |
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65 Range = Range # we copy the class here, so it can be used by other plugins |
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66 |
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67 def __init__(self, host): |
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68 log.info(_("plugin Jingle File Transfer initialization")) |
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69 self.host = host |
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70 host.registerNamespace("jingle-ft", NS_JINGLE_FT) |
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71 self._j = host.plugins["XEP-0166"] # shortcut to access jingle |
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72 self._j.registerApplication(NS_JINGLE_FT, self) |
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73 self._f = host.plugins["FILE"] |
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74 self._f.register( |
| 3028 | 75 NS_JINGLE_FT, self.fileJingleSend, priority=10000, method_name="Jingle" |
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76 ) |
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77 self._hash = self.host.plugins["XEP-0300"] |
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78 host.bridge.addMethod( |
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79 "fileJingleSend", |
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80 ".plugin", |
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81 in_sign="ssssa{ss}s", |
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82 out_sign="", |
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83 method=self._fileJingleSend, |
| 3028 | 84 async_=True, |
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85 ) |
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86 host.bridge.addMethod( |
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87 "fileJingleRequest", |
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88 ".plugin", |
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89 in_sign="sssssa{ss}s", |
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90 out_sign="s", |
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91 method=self._fileJingleRequest, |
| 3028 | 92 async_=True, |
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93 ) |
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94 |
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95 def getHandler(self, client): |
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96 return XEP_0234_handler() |
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97 |
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98 def getProgressId(self, session, content_name): |
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99 """Return a unique progress ID |
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100 |
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101 @param session(dict): jingle session |
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102 @param content_name(unicode): name of the content |
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103 @return (unicode): unique progress id |
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104 """ |
| 3028 | 105 return "{}_{}".format(session["id"], content_name) |
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106 |
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107 # generic methods |
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108 |
| 3040 | 109 def buildFileElement(self, name=None, file_hash=None, hash_algo=None, size=None, |
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110 mime_type=None, desc=None, modified=None, transfer_range=None, path=None, |
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111 namespace=None, file_elt=None, **kwargs): |
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112 """Generate a <file> element with available metadata |
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113 |
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114 @param file_hash(unicode, None): hash of the file |
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115 empty string to set <hash-used/> element |
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116 @param hash_algo(unicode, None): hash algorithm used |
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117 if file_hash is None and hash_algo is set, a <hash-used/> element will be generated |
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118 @param transfer_range(Range, None): where transfer must start/stop |
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119 @param modified(int, unicode, None): date of last modification |
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120 0 to use current date |
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121 int to use an unix timestamp |
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122 else must be an unicode string which will be used as it (it must be an XMPP time) |
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123 @param file_elt(domish.Element, None): element to use |
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124 None to create a new one |
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125 @param **kwargs: data for plugin extension (ignored by default) |
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126 @return (domish.Element): generated element |
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127 @trigger XEP-0234_buildFileElement(file_elt, extra_args): can be used to extend elements to add |
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128 """ |
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129 if file_elt is None: |
| 3028 | 130 file_elt = domish.Element((NS_JINGLE_FT, "file")) |
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131 for name, value in ( |
| 3028 | 132 ("name", name), |
| 133 ("size", size), | |
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134 ("media-type", mime_type), |
| 3028 | 135 ("desc", desc), |
| 136 ("path", path), | |
| 137 ("namespace", namespace), | |
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138 ): |
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139 if value is not None: |
| 3028 | 140 file_elt.addElement(name, content=str(value)) |
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141 |
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142 if modified is not None: |
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143 if isinstance(modified, int): |
| 3028 | 144 file_elt.addElement("date", utils.xmpp_date(modified or None)) |
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145 else: |
| 3028 | 146 file_elt.addElement("date", modified) |
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147 elif "created" in kwargs: |
| 3028 | 148 file_elt.addElement("date", utils.xmpp_date(kwargs.pop("created"))) |
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149 |
| 3028 | 150 range_elt = file_elt.addElement("range") |
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151 if transfer_range is not None: |
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152 if transfer_range.offset is not None: |
| 3028 | 153 range_elt["offset"] = transfer_range.offset |
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154 if transfer_range.length is not None: |
| 3028 | 155 range_elt["length"] = transfer_range.length |
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156 if file_hash is not None: |
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157 if not file_hash: |
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158 file_elt.addChild(self._hash.buildHashUsedElt()) |
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159 else: |
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160 file_elt.addChild(self._hash.buildHashElt(file_hash, hash_algo)) |
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161 elif hash_algo is not None: |
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162 file_elt.addChild(self._hash.buildHashUsedElt(hash_algo)) |
| 3028 | 163 self.host.trigger.point("XEP-0234_buildFileElement", file_elt, extra_args=kwargs) |
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164 if kwargs: |
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165 for kw in kwargs: |
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166 log.debug("ignored keyword: {}".format(kw)) |
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167 return file_elt |
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168 |
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169 def buildFileElementFromDict(self, file_data, **kwargs): |
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170 """like buildFileElement but get values from a file_data dict |
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171 |
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172 @param file_data(dict): metadata to use |
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173 @param **kwargs: data to override |
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174 """ |
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175 if kwargs: |
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176 file_data = file_data.copy() |
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177 file_data.update(kwargs) |
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178 return self.buildFileElement(**file_data) |
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179 |
| 3040 | 180 def parseFileElement(self, file_elt, file_data=None, given=False, parent_elt=None, |
| 181 keep_empty_range=False,): | |
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182 """Parse a <file> element and file dictionary accordingly |
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183 |
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184 @param file_data(dict, None): dict where the data will be set |
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185 following keys will be set (and overwritten if they already exist): |
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186 name, file_hash, hash_algo, size, mime_type, desc, path, namespace, range |
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187 if None, a new dict is created |
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188 @param given(bool): if True, prefix hash key with "given_" |
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189 @param parent_elt(domish.Element, None): parent of the file element |
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190 if set, file_elt must not be set |
| 3040 | 191 @param keep_empty_range(bool): if True, keep empty range (i.e. range when offset |
| 192 and length are None). | |
| 193 Empty range is useful to know if a peer_jid can handle range | |
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194 @return (dict): file_data |
| 3040 | 195 @trigger XEP-0234_parseFileElement(file_elt, file_data): can be used to parse new |
| 196 elements | |
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197 @raise exceptions.NotFound: there is not <file> element in parent_elt |
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198 @raise exceptions.DataError: if file_elt uri is not NS_JINGLE_FT |
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199 """ |
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200 if parent_elt is not None: |
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201 if file_elt is not None: |
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202 raise exceptions.InternalError( |
| 3028 | 203 "file_elt must be None if parent_elt is set" |
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204 ) |
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205 try: |
| 3028 | 206 file_elt = next(parent_elt.elements(NS_JINGLE_FT, "file")) |
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207 except StopIteration: |
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208 raise exceptions.NotFound() |
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209 else: |
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210 if not file_elt or file_elt.uri != NS_JINGLE_FT: |
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211 raise exceptions.DataError( |
| 3028 | 212 "invalid <file> element: {stanza}".format(stanza=file_elt.toXml()) |
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213 ) |
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214 |
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215 if file_data is None: |
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216 file_data = {} |
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217 |
| 3028 | 218 for name in ("name", "desc", "path", "namespace"): |
|
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219 try: |
| 3028 | 220 file_data[name] = str(next(file_elt.elements(NS_JINGLE_FT, name))) |
|
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221 except StopIteration: |
|
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222 pass |
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223 |
| 3028 | 224 name = file_data.get("name") |
| 225 if name == "..": | |
|
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226 # we don't want to go to parent dir when joining to a path |
| 3028 | 227 name = "--" |
| 228 file_data["name"] = name | |
| 3040 | 229 elif name is not None and ("/" in name or "\\" in name): |
| 3028 | 230 file_data["name"] = regex.pathEscape(name) |
|
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231 |
|
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232 try: |
| 3028 | 233 file_data["mime_type"] = str( |
| 234 next(file_elt.elements(NS_JINGLE_FT, "media-type")) | |
|
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235 ) |
|
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236 except StopIteration: |
|
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237 pass |
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238 |
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239 try: |
| 3028 | 240 file_data["size"] = int( |
| 241 str(next(file_elt.elements(NS_JINGLE_FT, "size"))) | |
|
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242 ) |
|
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243 except StopIteration: |
|
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244 pass |
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245 |
|
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246 try: |
| 3028 | 247 file_data["modified"] = date_utils.date_parse( |
| 248 next(file_elt.elements(NS_JINGLE_FT, "date")) | |
|
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249 ) |
|
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250 except StopIteration: |
|
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251 pass |
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252 |
|
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253 try: |
| 3028 | 254 range_elt = next(file_elt.elements(NS_JINGLE_FT, "range")) |
|
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255 except StopIteration: |
|
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|
256 pass |
|
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257 else: |
|
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258 offset = range_elt.getAttribute("offset") |
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259 length = range_elt.getAttribute("length") |
|
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260 if offset or length or keep_empty_range: |
| 3028 | 261 file_data["transfer_range"] = Range(offset=offset, length=length) |
|
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262 |
| 3028 | 263 prefix = "given_" if given else "" |
| 264 hash_algo_key, hash_key = "hash_algo", prefix + "file_hash" | |
|
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265 try: |
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266 file_data[hash_algo_key], file_data[hash_key] = self._hash.parseHashElt( |
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267 file_elt |
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268 ) |
|
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269 except exceptions.NotFound: |
|
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|
270 pass |
|
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|
271 |
| 3028 | 272 self.host.trigger.point("XEP-0234_parseFileElement", file_elt, file_data) |
|
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273 |
|
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274 return file_data |
|
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275 |
|
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276 # bridge methods |
|
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|
277 |
|
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278 def _fileJingleSend( |
|
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279 self, |
|
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280 peer_jid, |
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281 filepath, |
|
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|
282 name="", |
|
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283 file_desc="", |
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284 extra=None, |
|
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|
285 profile=C.PROF_KEY_NONE, |
|
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286 ): |
|
2489
e2a7bb875957
plugin pipe/stream, file transfert: refactoring and improvments:
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|
287 client = self.host.getClient(profile) |
|
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288 return self.fileJingleSend( |
|
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|
289 client, |
|
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|
290 jid.JID(peer_jid), |
|
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|
291 filepath, |
|
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|
292 name or None, |
|
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|
293 file_desc or None, |
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|
294 extra or None, |
|
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|
295 ) |
|
1528
1c71d7335d02
plugin XEP-0234: jingle file transfer first draft
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|
296 |
|
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|
297 @defer.inlineCallbacks |
|
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298 def fileJingleSend( |
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299 self, client, peer_jid, filepath, name, file_desc=None, extra=None |
|
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300 ): |
|
1585
846a39900fa6
plugins XEP-0096, XEP-0260, file: sendFile method is managed by file plugin, which choose the best available method + progress_id fix
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diff
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|
301 """Send a file using jingle file transfer |
|
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plugins XEP-0096, XEP-0260, file: sendFile method is managed by file plugin, which choose the best available method + progress_id fix
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302 |
|
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plugins XEP-0096, XEP-0260, file: sendFile method is managed by file plugin, which choose the best available method + progress_id fix
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diff
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|
303 @param peer_jid(jid.JID): destinee jid |
|
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plugins XEP-0096, XEP-0260, file: sendFile method is managed by file plugin, which choose the best available method + progress_id fix
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|
304 @param filepath(str): absolute path of the file |
|
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plugins XEP-0096, XEP-0260, file: sendFile method is managed by file plugin, which choose the best available method + progress_id fix
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|
305 @param name(unicode, None): name of the file |
|
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plugins XEP-0096, XEP-0260, file: sendFile method is managed by file plugin, which choose the best available method + progress_id fix
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|
306 @param file_desc(unicode, None): description of the file |
|
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plugins XEP-0096, XEP-0260, file: sendFile method is managed by file plugin, which choose the best available method + progress_id fix
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|
307 @return (D(unicode)): progress id |
|
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plugins XEP-0096, XEP-0260, file: sendFile method is managed by file plugin, which choose the best available method + progress_id fix
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diff
changeset
|
308 """ |
|
846a39900fa6
plugins XEP-0096, XEP-0260, file: sendFile method is managed by file plugin, which choose the best available method + progress_id fix
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diff
changeset
|
309 progress_id_d = defer.Deferred() |
|
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|
310 if extra is None: |
|
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XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
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diff
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|
311 extra = {} |
|
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|
312 if file_desc is not None: |
|
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|
313 extra["file_desc"] = file_desc |
|
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314 yield self._j.initiate( |
|
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|
315 client, |
|
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|
316 peer_jid, |
|
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|
317 [ |
|
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318 { |
|
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|
319 "app_ns": NS_JINGLE_FT, |
|
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|
320 "senders": self._j.ROLE_INITIATOR, |
|
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|
321 "app_kwargs": { |
|
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|
322 "filepath": filepath, |
|
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|
323 "name": name, |
|
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|
324 "extra": extra, |
|
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|
325 "progress_id_d": progress_id_d, |
|
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|
326 }, |
|
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|
327 } |
|
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|
328 ], |
|
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|
329 ) |
|
2502
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XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
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changeset
|
330 progress_id = yield progress_id_d |
|
7ad5f2c4e34a
XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
Goffi <goffi@goffi.org>
parents:
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331 defer.returnValue(progress_id) |
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332 |
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333 def _fileJingleRequest( |
| 3040 | 334 self, peer_jid, filepath, name="", file_hash="", hash_algo="", extra=None, |
| 335 profile=C.PROF_KEY_NONE): | |
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336 client = self.host.getClient(profile) |
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337 return self.fileJingleRequest( |
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338 client, |
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339 jid.JID(peer_jid), |
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340 filepath, |
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341 name or None, |
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342 file_hash or None, |
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343 hash_algo or None, |
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344 extra or None, |
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345 ) |
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346 |
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347 @defer.inlineCallbacks |
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348 def fileJingleRequest( |
| 3040 | 349 self, client, peer_jid, filepath, name=None, file_hash=None, hash_algo=None, |
| 350 extra=None): | |
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351 """Request a file using jingle file transfer |
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352 |
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353 @param peer_jid(jid.JID): destinee jid |
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354 @param filepath(str): absolute path where the file will be downloaded |
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355 @param name(unicode, None): name of the file |
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356 @param file_hash(unicode, None): hash of the file |
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357 @return (D(unicode)): progress id |
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358 """ |
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359 progress_id_d = defer.Deferred() |
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360 if extra is None: |
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361 extra = {} |
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362 if file_hash is not None: |
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363 if hash_algo is None: |
| 3028 | 364 raise ValueError(_("hash_algo must be set if file_hash is set")) |
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365 extra["file_hash"] = file_hash |
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366 extra["hash_algo"] = hash_algo |
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367 else: |
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368 if hash_algo is not None: |
| 3028 | 369 raise ValueError(_("file_hash must be set if hash_algo is set")) |
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370 yield self._j.initiate( |
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371 client, |
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372 peer_jid, |
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373 [ |
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374 { |
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375 "app_ns": NS_JINGLE_FT, |
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376 "senders": self._j.ROLE_RESPONDER, |
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377 "app_kwargs": { |
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378 "filepath": filepath, |
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379 "name": name, |
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380 "extra": extra, |
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381 "progress_id_d": progress_id_d, |
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382 }, |
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383 } |
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384 ], |
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385 ) |
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386 progress_id = yield progress_id_d |
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387 defer.returnValue(progress_id) |
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388 |
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389 # jingle callbacks |
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390 |
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391 def jingleSessionInit( |
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392 self, client, session, content_name, filepath, name, extra, progress_id_d |
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393 ): |
|
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394 if extra is None: |
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395 extra = {} |
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396 else: |
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397 if not EXTRA_ALLOWED.issuperset(extra): |
|
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398 raise ValueError( |
| 3028 | 399 _("only the following keys are allowed in extra: {keys}").format( |
| 400 keys=", ".join(EXTRA_ALLOWED) | |
|
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401 ) |
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402 ) |
|
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403 progress_id_d.callback(self.getProgressId(session, content_name)) |
|
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404 content_data = session["contents"][content_name] |
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405 application_data = content_data["application_data"] |
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406 assert "file_path" not in application_data |
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407 application_data["file_path"] = filepath |
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408 file_data = application_data["file_data"] = {} |
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409 desc_elt = domish.Element((NS_JINGLE_FT, "description")) |
|
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410 file_elt = desc_elt.addElement("file") |
|
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411 |
| 3028 | 412 if content_data["senders"] == self._j.ROLE_INITIATOR: |
|
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413 # we send a file |
|
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414 if name is None: |
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415 name = os.path.basename(filepath) |
| 3028 | 416 file_data["date"] = utils.xmpp_date() |
| 417 file_data["desc"] = extra.pop("file_desc", "") | |
| 418 file_data["name"] = name | |
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419 mime_type = mimetypes.guess_type(name, strict=False)[0] |
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420 if mime_type is not None: |
| 3028 | 421 file_data["mime_type"] = mime_type |
| 422 file_data["size"] = os.path.getsize(filepath) | |
| 423 if "namespace" in extra: | |
| 424 file_data["namespace"] = extra["namespace"] | |
| 425 if "path" in extra: | |
| 426 file_data["path"] = extra["path"] | |
| 427 self.buildFileElementFromDict(file_data, file_elt=file_elt, file_hash="") | |
|
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428 else: |
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429 # we request a file |
| 3028 | 430 file_hash = extra.pop("file_hash", "") |
|
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431 if not name and not file_hash: |
| 3028 | 432 raise ValueError(_("you need to provide at least name or file hash")) |
|
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433 if name: |
| 3028 | 434 file_data["name"] = name |
|
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435 if file_hash: |
| 3028 | 436 file_data["file_hash"] = file_hash |
| 437 file_data["hash_algo"] = extra["hash_algo"] | |
|
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438 else: |
| 3028 | 439 file_data["hash_algo"] = self._hash.getDefaultAlgo() |
| 440 if "namespace" in extra: | |
| 441 file_data["namespace"] = extra["namespace"] | |
| 442 if "path" in extra: | |
| 443 file_data["path"] = extra["path"] | |
|
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444 self.buildFileElementFromDict(file_data, file_elt=file_elt) |
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445 |
|
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446 return desc_elt |
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447 |
|
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448 def jingleRequestConfirmation(self, client, action, session, content_name, desc_elt): |
|
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449 """This method request confirmation for a jingle session""" |
|
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450 content_data = session["contents"][content_name] |
| 3028 | 451 senders = content_data["senders"] |
|
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452 if senders not in (self._j.ROLE_INITIATOR, self._j.ROLE_RESPONDER): |
| 3028 | 453 log.warning("Bad sender, assuming initiator") |
| 454 senders = content_data["senders"] = self._j.ROLE_INITIATOR | |
|
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455 # first we grab file informations |
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456 try: |
| 3028 | 457 file_elt = next(desc_elt.elements(NS_JINGLE_FT, "file")) |
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458 except StopIteration: |
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459 raise failure.Failure(exceptions.DataError) |
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460 file_data = {"progress_id": self.getProgressId(session, content_name)} |
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461 |
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462 if senders == self._j.ROLE_RESPONDER: |
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463 # we send the file |
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464 return self._fileSendingRequestConf( |
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465 client, session, content_data, content_name, file_data, file_elt |
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466 ) |
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467 else: |
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468 # we receive the file |
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469 return self._fileReceivingRequestConf( |
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470 client, session, content_data, content_name, file_data, file_elt |
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471 ) |
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472 |
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473 @defer.inlineCallbacks |
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474 def _fileSendingRequestConf( |
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475 self, client, session, content_data, content_name, file_data, file_elt |
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476 ): |
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477 """parse file_elt, and handle file retrieving/permission checking""" |
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478 self.parseFileElement(file_elt, file_data) |
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479 content_data["application_data"]["file_data"] = file_data |
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480 finished_d = content_data["finished_d"] = defer.Deferred() |
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481 |
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482 # confirmed_d is a deferred returning confimed value (only used if cont is False) |
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483 cont, confirmed_d = self.host.trigger.returnPoint( |
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484 "XEP-0234_fileSendingRequest", |
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485 client, |
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486 session, |
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487 content_data, |
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488 content_name, |
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489 file_data, |
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490 file_elt, |
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491 ) |
|
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492 if not cont: |
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493 confirmed = yield confirmed_d |
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494 if confirmed: |
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495 args = [client, session, content_name, content_data] |
|
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496 finished_d.addCallbacks( |
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497 self._finishedCb, self._finishedEb, args, None, args |
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498 ) |
|
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499 defer.returnValue(confirmed) |
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500 |
| 3028 | 501 log.warning(_("File continue is not implemented yet")) |
|
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502 defer.returnValue(False) |
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|
503 |
|
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504 def _fileReceivingRequestConf( |
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505 self, client, session, content_data, content_name, file_data, file_elt |
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506 ): |
|
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507 """parse file_elt, and handle user permission/file opening""" |
|
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508 self.parseFileElement(file_elt, file_data, given=True) |
|
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509 try: |
|
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510 hash_algo, file_data["given_file_hash"] = self._hash.parseHashElt(file_elt) |
|
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|
511 except exceptions.NotFound: |
|
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|
512 try: |
|
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|
513 hash_algo = self._hash.parseHashUsedElt(file_elt) |
|
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|
514 except exceptions.NotFound: |
|
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|
515 raise failure.Failure(exceptions.DataError) |
|
1620
4dd07d026214
plugin XEP-0234: hash checksum proper handling
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1618
diff
changeset
|
516 |
|
4dd07d026214
plugin XEP-0234: hash checksum proper handling
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changeset
|
517 if hash_algo is not None: |
|
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518 file_data["hash_algo"] = hash_algo |
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519 file_data["hash_hasher"] = hasher = self._hash.getHasher(hash_algo) |
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520 file_data["data_cb"] = lambda data: hasher.update(data) |
|
1620
4dd07d026214
plugin XEP-0234: hash checksum proper handling
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parents:
1618
diff
changeset
|
521 |
|
4dd07d026214
plugin XEP-0234: hash checksum proper handling
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changeset
|
522 try: |
|
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|
523 file_data["size"] = int(file_data["size"]) |
|
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|
524 except ValueError: |
|
1c71d7335d02
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|
525 raise failure.Failure(exceptions.DataError) |
|
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changeset
|
526 |
|
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527 name = file_data["name"] |
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|
528 if "/" in name or "\\" in name: |
|
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|
529 log.warning( |
| 3028 | 530 "File name contain path characters, we replace them: {}".format(name) |
|
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|
531 ) |
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|
532 file_data["name"] = name.replace("/", "_").replace("\\", "_") |
|
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|
533 |
|
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|
534 content_data["application_data"]["file_data"] = file_data |
|
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changeset
|
535 |
|
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plugin XEP-0234: jingle file transfer first draft
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parents:
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changeset
|
536 # now we actualy request permission to user |
|
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changeset
|
537 def gotConfirmation(confirmed): |
|
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changeset
|
538 if confirmed: |
|
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changeset
|
539 args = [client, session, content_name, content_data] |
|
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|
540 finished_d.addCallbacks( |
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541 self._finishedCb, self._finishedEb, args, None, args |
|
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|
542 ) |
|
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|
543 return confirmed |
|
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changeset
|
544 |
|
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changeset
|
545 # deferred to track end of transfer |
|
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|
546 finished_d = content_data["finished_d"] = defer.Deferred() |
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547 d = self._f.getDestDir( |
|
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|
548 client, session["peer_jid"], content_data, file_data, stream_object=True |
|
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|
549 ) |
|
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|
550 d.addCallback(gotConfirmation) |
|
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|
551 return d |
|
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|
552 |
| 3040 | 553 @defer.inlineCallbacks |
|
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|
554 def jingleHandler(self, client, action, session, content_name, desc_elt): |
|
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|
555 content_data = session["contents"][content_name] |
|
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|
556 application_data = content_data["application_data"] |
|
1556
cbfbe028d099
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1529
diff
changeset
|
557 if action in (self._j.A_ACCEPTED_ACK,): |
|
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changeset
|
558 pass |
|
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changeset
|
559 elif action == self._j.A_SESSION_INITIATE: |
| 3028 | 560 file_elt = next(desc_elt.elements(NS_JINGLE_FT, "file")) |
|
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plugin XEP-0166, XEP-0234, XEP-0261:
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561 try: |
| 3028 | 562 next(file_elt.elements(NS_JINGLE_FT, "range")) |
|
1556
cbfbe028d099
plugin XEP-0166, XEP-0234, XEP-0261:
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diff
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|
563 except StopIteration: |
|
cbfbe028d099
plugin XEP-0166, XEP-0234, XEP-0261:
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diff
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|
564 # initiator doesn't manage <range>, but we do so we advertise it |
| 3040 | 565 # FIXME: to be checked |
|
1556
cbfbe028d099
plugin XEP-0166, XEP-0234, XEP-0261:
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diff
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|
566 log.debug("adding <range> element") |
|
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567 file_elt.addElement("range") |
|
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plugin XEP-0234: jingle file transfer first draft
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|
568 elif action == self._j.A_SESSION_ACCEPT: |
|
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569 assert not "stream_object" in content_data |
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570 file_data = application_data["file_data"] |
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571 file_path = application_data["file_path"] |
| 3028 | 572 senders = content_data["senders"] |
| 573 if senders != session["role"]: | |
|
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changeset
|
574 # we are receiving the file |
|
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|
575 try: |
|
7ad5f2c4e34a
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|
576 # did the responder specified the size of the file? |
| 3028 | 577 file_elt = next(desc_elt.elements(NS_JINGLE_FT, "file")) |
| 578 size_elt = next(file_elt.elements(NS_JINGLE_FT, "size")) | |
| 579 size = int(str(size_elt)) | |
|
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XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
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|
580 except (StopIteration, ValueError): |
|
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XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
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|
581 size = None |
| 3040 | 582 # XXX: hash security is not critical here, so we just take the higher |
| 583 # mandatory one | |
|
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584 hasher = file_data["hash_hasher"] = self._hash.getHasher() |
| 3040 | 585 progress_id = self.getProgressId(session, content_name) |
| 586 try: | |
| 587 content_data["stream_object"] = stream.FileStreamObject( | |
| 588 self.host, | |
| 589 client, | |
| 590 file_path, | |
| 591 mode="wb", | |
| 592 uid=progress_id, | |
| 593 size=size, | |
| 594 data_cb=lambda data: hasher.update(data), | |
| 595 ) | |
| 596 except Exception as e: | |
| 597 self.host.bridge.progressError( | |
| 598 progress_id, C.PROGRESS_ERROR_FAILED, client.profile | |
| 599 ) | |
| 600 yield self._j.terminate( | |
| 601 client, self._j.REASON_FAILED_APPLICATION, session) | |
| 602 raise e | |
|
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diff
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|
603 else: |
|
7ad5f2c4e34a
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|
604 # we are sending the file |
|
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605 size = file_data["size"] |
| 3040 | 606 # XXX: hash security is not critical here, so we just take the higher |
| 607 # mandatory one | |
|
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608 hasher = file_data["hash_hasher"] = self._hash.getHasher() |
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609 content_data["stream_object"] = stream.FileStreamObject( |
|
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|
610 self.host, |
|
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|
611 client, |
|
7ad5f2c4e34a
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|
612 file_path, |
|
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|
613 uid=self.getProgressId(session, content_name), |
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changeset
|
614 size=size, |
|
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|
615 data_cb=lambda data: hasher.update(data), |
|
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616 ) |
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617 finished_d = content_data["finished_d"] = defer.Deferred() |
|
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|
618 args = [client, session, content_name, content_data] |
|
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plugins XEP-0234, XEP-0260, XEP-0261: jingle session termination is managed by application (XEP-0234) instead of transport
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parents:
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diff
changeset
|
619 finished_d.addCallbacks(self._finishedCb, self._finishedEb, args, None, args) |
|
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620 else: |
| 3028 | 621 log.warning("FIXME: unmanaged action {}".format(action)) |
| 3040 | 622 defer.returnValue(desc_elt) |
|
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|
623 |
|
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|
624 def jingleSessionInfo(self, client, action, session, content_name, jingle_elt): |
|
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|
625 """Called on session-info action |
|
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|
626 |
|
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|
627 manage checksum, and ignore <received/> element |
|
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|
628 """ |
|
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changeset
|
629 # TODO: manage <received/> element |
|
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630 content_data = session["contents"][content_name] |
|
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|
631 elts = [elt for elt in jingle_elt.elements() if elt.uri == NS_JINGLE_FT] |
|
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|
632 if not elts: |
|
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|
633 return |
|
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changeset
|
634 for elt in elts: |
|
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|
635 if elt.name == "received": |
|
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changeset
|
636 pass |
|
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|
637 elif elt.name == "checksum": |
|
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changeset
|
638 # we have received the file hash, we need to parse it |
|
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|
639 if content_data["senders"] == session["role"]: |
|
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|
640 log.warning( |
| 3028 | 641 "unexpected checksum received while we are the file sender" |
|
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|
642 ) |
|
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|
643 raise exceptions.DataError |
|
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|
644 info_content_name = elt["name"] |
|
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changeset
|
645 if info_content_name != content_name: |
|
4dd07d026214
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changeset
|
646 # it was for an other content... |
|
4dd07d026214
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|
647 return |
|
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|
648 file_data = content_data["application_data"]["file_data"] |
|
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|
649 try: |
| 3028 | 650 file_elt = next(elt.elements((NS_JINGLE_FT, "file"))) |
|
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|
651 except StopIteration: |
|
4dd07d026214
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changeset
|
652 raise exceptions.DataError |
|
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|
653 algo, file_data["given_file_hash"] = self._hash.parseHashElt(file_elt) |
|
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|
654 if algo != file_data.get("hash_algo"): |
|
56f94936df1e
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changeset
|
655 log.warning( |
| 3028 | 656 "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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|
657 peer_algo=algo, |
|
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|
658 our_algo=file_data.get("hash_algo"), |
|
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|
659 profile=client.profile, |
|
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|
660 ) |
|
56f94936df1e
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changeset
|
661 ) |
|
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changeset
|
662 else: |
|
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changeset
|
663 self._receiverTryTerminate( |
|
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|
664 client, session, content_name, content_data |
|
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|
665 ) |
|
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|
666 else: |
|
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|
667 raise NotImplementedError |
|
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changeset
|
668 |
|
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diff
changeset
|
669 def jingleTerminate(self, client, action, session, content_name, jingle_elt): |
|
7ad5f2c4e34a
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changeset
|
670 if jingle_elt.decline: |
|
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changeset
|
671 # progress is the only way to tell to frontends that session has been declined |
|
7ad5f2c4e34a
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changeset
|
672 progress_id = self.getProgressId(session, content_name) |
|
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|
673 self.host.bridge.progressError( |
|
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changeset
|
674 progress_id, C.PROGRESS_ERROR_DECLINED, client.profile |
|
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|
675 ) |
| 3040 | 676 elif not jingle_elt.success: |
| 677 progress_id = self.getProgressId(session, content_name) | |
| 678 first_child = jingle_elt.firstChildElement() | |
| 679 if first_child is not None: | |
| 680 reason = first_child.name | |
| 681 else: | |
| 682 reason = C.PROGRESS_ERROR_FAILED | |
| 683 self.host.bridge.progressError( | |
| 684 progress_id, reason, client.profile | |
| 685 ) | |
|
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2489
diff
changeset
|
686 |
|
2489
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changeset
|
687 def _sendCheckSum(self, client, session, content_name, content_data): |
|
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|
688 """Send the session-info with the hash checksum""" |
|
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|
689 file_data = content_data["application_data"]["file_data"] |
|
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|
690 hasher = file_data["hash_hasher"] |
|
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|
691 hash_ = hasher.hexdigest() |
| 3028 | 692 log.debug("Calculated hash: {}".format(hash_)) |
|
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changeset
|
693 iq_elt, jingle_elt = self._j.buildSessionInfo(client, session) |
|
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|
694 checksum_elt = jingle_elt.addElement((NS_JINGLE_FT, "checksum")) |
|
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|
695 checksum_elt["creator"] = content_data["creator"] |
|
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|
696 checksum_elt["name"] = content_name |
|
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|
697 file_elt = checksum_elt.addElement("file") |
|
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|
698 file_elt.addChild(self._hash.buildHashElt(hash_)) |
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699 iq_elt.send() |
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700 |
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701 def _receiverTryTerminate( |
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702 self, client, session, content_name, content_data, last_try=False |
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703 ): |
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704 """Try to terminate the session |
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705 |
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706 This method must only be used by the receiver. |
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707 It check if transfer is finished, and hash available, |
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708 if everything is OK, it check hash and terminate the session |
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709 @param last_try(bool): if True this mean than session must be terminated even given hash is not available |
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710 @return (bool): True if session was terminated |
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711 """ |
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712 if not content_data.get("transfer_finished", False): |
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713 return False |
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714 file_data = content_data["application_data"]["file_data"] |
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715 given_hash = file_data.get("given_file_hash") |
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716 if given_hash is None: |
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717 if last_try: |
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718 log.warning( |
| 3028 | 719 "sender didn't sent hash checksum, we can't check the file [{profile}]".format( |
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720 profile=client.profile |
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721 ) |
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722 ) |
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723 self._j.delayedContentTerminate(client, session, content_name) |
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724 content_data["stream_object"].close() |
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725 return True |
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726 return False |
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727 hasher = file_data["hash_hasher"] |
| 3040 | 728 hash_ = hasher.hexdigest() |
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729 |
|
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730 if hash_ == given_hash: |
| 3040 | 731 log.info(f"Hash checked, file was successfully transfered: {hash_}") |
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732 progress_metadata = { |
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733 "hash": hash_, |
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734 "hash_algo": file_data["hash_algo"], |
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735 "hash_verified": C.BOOL_TRUE, |
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736 } |
|
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737 error = None |
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738 else: |
| 3028 | 739 log.warning("Hash mismatch, the file was not transfered correctly") |
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740 progress_metadata = None |
| 3028 | 741 error = "Hash mismatch: given={algo}:{given}, calculated={algo}:{our}".format( |
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742 algo=file_data["hash_algo"], given=given_hash, our=hash_ |
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743 ) |
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744 |
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745 self._j.delayedContentTerminate(client, session, content_name) |
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746 content_data["stream_object"].close(progress_metadata, error) |
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747 # we may have the last_try timer still active, so we try to cancel it |
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748 try: |
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749 content_data["last_try_timer"].cancel() |
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750 except (KeyError, internet_error.AlreadyCalled): |
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751 pass |
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752 return True |
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|
753 |
|
2765
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754 def _finishedCb(self, __, client, session, content_name, content_data): |
| 3028 | 755 log.info("File transfer terminated") |
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756 if content_data["senders"] != session["role"]: |
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757 # we terminate the session only if we are the receiver, |
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758 # as recommanded in XEP-0234 §2 (after example 6) |
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759 content_data["transfer_finished"] = True |
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760 if not self._receiverTryTerminate( |
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761 client, session, content_name, content_data |
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762 ): |
|
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763 # we have not received the hash yet, we wait 5 more seconds |
|
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764 content_data["last_try_timer"] = reactor.callLater( |
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|
765 5, |
|
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766 self._receiverTryTerminate, |
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|
767 client, |
|
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768 session, |
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|
769 content_name, |
|
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770 content_data, |
|
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771 last_try=True, |
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|
772 ) |
|
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773 else: |
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774 # we are the sender, we send the checksum |
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|
775 self._sendCheckSum(client, session, content_name, content_data) |
|
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776 content_data["stream_object"].close() |
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|
777 |
|
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|
778 def _finishedEb(self, failure, client, session, content_name, content_data): |
| 3028 | 779 log.warning("Error while streaming file: {}".format(failure)) |
|
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780 content_data["stream_object"].close() |
|
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781 self._j.contentTerminate( |
|
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782 client, session, content_name, reason=self._j.REASON_FAILED_TRANSPORT |
|
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783 ) |
|
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|
784 |
|
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|
785 |
| 3028 | 786 @implementer(iwokkel.IDisco) |
|
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|
787 class XEP_0234_handler(XMPPHandler): |
|
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|
788 |
|
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789 def getDiscoInfo(self, requestor, target, nodeIdentifier=""): |
|
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|
790 return [disco.DiscoFeature(NS_JINGLE_FT)] |
|
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|
791 |
|
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|
792 def getDiscoItems(self, requestor, target, nodeIdentifier=""): |
|
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793 return [] |