Mercurial > libervia-backend

annotate sat/plugins/plugin_misc_file.py @ 2632:96911768b0f3

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quick_frontend (chat): create target in cache if it is not found, avoiding an exception
author Goffi <goffi@goffi.org>
date Mon, 02 Jul 2018 08:54:57 +0200
parents 56f94936df1e
children 003b8b4b56a7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1934
2daf7b4c6756 use of /usr/bin/env instead of /usr/bin/python in shebang
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1 #!/usr/bin/env python2
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2 # -*- coding: utf-8 -*-
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3
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4 # SAT plugin for file tansfer
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5 # Copyright (C) 2009-2018 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 _, D_
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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 sat.tools import xml_tools
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27 from sat.tools import stream
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28 from twisted.internet import defer
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29 from twisted.words.protocols.jabber import jid
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30 import os
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31 import os.path
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32
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33
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34 PLUGIN_INFO = {
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35 C.PI_NAME: "File Tansfer",
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36 C.PI_IMPORT_NAME: "FILE",
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37 C.PI_TYPE: C.PLUG_TYPE_MISC,
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38 C.PI_MODES: C.PLUG_MODE_BOTH,
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39 C.PI_MAIN: "FilePlugin",
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40 C.PI_HANDLER: "no",
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41 C.PI_DESCRIPTION: _(
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42 """File Tansfer Management:
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43 This plugin manage the various ways of sending a file, and choose the best one."""
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44 ),
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45 }
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46
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47
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48 SENDING = D_(u"Please select a file to send to {peer}")
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49 SENDING_TITLE = D_(u"File sending")
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50 CONFIRM = D_(
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51 u'{peer} wants to send the file "{name}" to you:\n{desc}\n\nThe file has a size of {size_human}\n\nDo you accept ?'
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52 )
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53 CONFIRM_TITLE = D_(u"Confirm file transfer")
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54 CONFIRM_OVERWRITE = D_(u"File {} already exists, are you sure you want to overwrite ?")
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55 CONFIRM_OVERWRITE_TITLE = D_(u"File exists")
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56 SECURITY_LIMIT = 30
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57
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58 PROGRESS_ID_KEY = "progress_id"
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59
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60
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61 class FilePlugin(object):
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62 File = stream.SatFile
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63
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64 def __init__(self, host):
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65 log.info(_("plugin File initialization"))
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66 self.host = host
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67 host.bridge.addMethod(
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68 "fileSend",
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69 ".plugin",
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70 in_sign="ssssa{ss}s",
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71 out_sign="a{ss}",
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72 method=self._fileSend,
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73 async=True,
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74 )
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75 self._file_callbacks = []
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76 host.importMenu(
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77 (D_("Action"), D_("send file")),
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78 self._fileSendMenu,
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79 security_limit=10,
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80 help_string=D_("Send a file"),
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81 type_=C.MENU_SINGLE,
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82 )
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83
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84 def _fileSend(
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85 self,
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86 peer_jid_s,
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87 filepath,
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88 name="",
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89 file_desc="",
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90 extra=None,
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91 profile=C.PROF_KEY_NONE,
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92 ):
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93 client = self.host.getClient(profile)
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94 return self.fileSend(
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95 client, jid.JID(peer_jid_s), filepath, name or None, file_desc or None, extra
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96 )
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98 @defer.inlineCallbacks
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99 def fileSend(
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100 self, client, peer_jid, filepath, filename=None, file_desc=None, extra=None
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101 ):
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102 """Send a file using best available method
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103
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104 @param peer_jid(jid.JID): jid of the destinee
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105 @param filepath(str): absolute path to the file
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106 @param filename(unicode, None): name to use, or None to find it from filepath
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107 @param file_desc(unicode, None): description of the file
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108 @param profile: %(doc_profile)s
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109 @return (dict): action dictionary, with progress id in case of success, else xmlui message
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110 """
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111 if not os.path.isfile(filepath):
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112 raise exceptions.DataError(u"The given path doesn't link to a file")
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113 if not filename:
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114 filename = os.path.basename(filepath) or "_"
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115 for namespace, callback, priority, method_name in self._file_callbacks:
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116 has_feature = yield self.host.hasFeature(client, namespace, peer_jid)
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117 if has_feature:
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118 log.info(
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119 u"{name} method will be used to send the file".format(
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120 name=method_name
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121 )
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122 )
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123 progress_id = yield callback(
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124 client, peer_jid, filepath, filename, file_desc, extra
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125 )
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126 defer.returnValue({"progress": progress_id})
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127 msg = u"Can't find any method to send file to {jid}".format(jid=peer_jid.full())
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128 log.warning(msg)
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129 defer.returnValue(
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130 {
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131 "xmlui": xml_tools.note(
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132 u"Can't transfer file", msg, C.XMLUI_DATA_LVL_WARNING
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133 ).toXml()
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134 }
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135 )
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136
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137 def _onFileChoosed(self, client, peer_jid, data):
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138 cancelled = C.bool(data.get("cancelled", C.BOOL_FALSE))
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139 if cancelled:
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140 return
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141 path = data["path"]
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142 return self.fileSend(client, peer_jid, path)
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143
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parents: 1626
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144 def _fileSendMenu(self, data, profile):
591e04f0103c plugin file: added "Action/send" file menu
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parents: 1626
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145 """ XMLUI activated by menu: return file sending UI
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146
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147 @param profile: %(doc_profile)s
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148 """
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149 try:
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150 jid_ = jid.JID(data["jid"])
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151 except RuntimeError:
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152 raise exceptions.DataError(_("Invalid JID"))
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153
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154 file_choosed_id = self.host.registerCallback(
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155 lambda data, profile: self._onFileChoosed(
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parents: 2562
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156 self.host.getClient(profile), jid_, data
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parents: 2562
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157 ),
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parents: 2562
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158 with_data=True,
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159 one_shot=True,
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160 )
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161 xml_ui = xml_tools.XMLUI(
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162 C.XMLUI_DIALOG,
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163 dialog_opt={
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164 C.XMLUI_DATA_TYPE: C.XMLUI_DIALOG_FILE,
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165 C.XMLUI_DATA_MESS: _(SENDING).format(peer=jid_.full()),
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166 },
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parents: 2562
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167 title=_(SENDING_TITLE),
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168 submit_id=file_choosed_id,
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169 )
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170
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171 return {"xmlui": xml_ui.toXml()}
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172
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173 def register(self, namespace, callback, priority=0, method_name=None):
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
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174 """Register a fileSending method
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175
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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parents: 1575
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176 @param namespace(unicode): XEP namespace
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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parents: 1575
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177 @param callback(callable): method to call (must have the same signature as [fileSend])
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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parents: 1575
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178 @param priority(int): pririoty of this method, the higher available will be used
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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parents: 1575
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179 @param method_name(unicode): short name for the method, namespace will be used if None
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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parents: 1575
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180 """
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
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181 for data in self._file_callbacks:
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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182 if namespace == data[0]:
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183 raise exceptions.ConflictError(
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184 u"A method with this namespace is already registered"
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185 )
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186 self._file_callbacks.append(
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187 (namespace, callback, priority, method_name or namespace)
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188 )
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189 self._file_callbacks.sort(key=lambda data: data[2], reverse=True)
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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parents: 1575
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190
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
191 def unregister(self, namespace):
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
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192 for idx, data in enumerate(self._file_callbacks):
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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parents: 1575
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193 if data[0] == namespace:
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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parents: 1575
diff changeset
194 del [idx]
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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parents: 1575
diff changeset
195 return
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parents: 1575
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196 raise exceptions.NotFound(u"The namespace to unregister doesn't exist")
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parents:
diff changeset
197
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198 # Dialogs with user
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199 # the overwrite check is done here
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200
2502
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201 def openFileWrite(self, client, file_path, transfer_data, file_data, stream_object):
7ad5f2c4e34a XEP-0065,XEP-0096,XEP-0166,XEP-0235,XEP-0300: file transfer improvments:
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202 """create SatFile or FileStremaObject for the requested file and fill suitable data
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203 """
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204 if stream_object:
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205 assert "stream_object" not in transfer_data
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206 transfer_data["stream_object"] = stream.FileStreamObject(
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diff changeset
207 self.host,
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208 client,
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209 file_path,
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diff changeset
210 mode="wb",
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211 uid=file_data[PROGRESS_ID_KEY],
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212 size=file_data["size"],
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213 data_cb=file_data.get("data_cb"),
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214 )
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215 else:
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216 assert "file_obj" not in transfer_data
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217 transfer_data["file_obj"] = stream.SatFile(
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diff changeset
218 self.host,
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219 client,
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220 file_path,
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221 mode="wb",
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222 uid=file_data[PROGRESS_ID_KEY],
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223 size=file_data["size"],
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224 data_cb=file_data.get("data_cb"),
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225 )
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226
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227 def _gotConfirmation(
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228 self, data, client, peer_jid, transfer_data, file_data, stream_object
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229 ):
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230 """Called when the permission and dest path have been received
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231
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diff changeset
232 @param peer_jid(jid.JID): jid of the file sender
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233 @param transfer_data(dict): same as for [self.getDestDir]
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234 @param file_data(dict): same as for [self.getDestDir]
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235 @param stream_object(bool): same as for [self.getDestDir]
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236 return (bool): True if copy is wanted and OK
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diff changeset
237 False if user wants to cancel
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diff changeset
238 if file exists ask confirmation and call again self._getDestDir if needed
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diff changeset
239 """
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240 if data.get("cancelled", False):
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241 return False
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242 path = data["path"]
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243 file_data["file_path"] = file_path = os.path.join(path, file_data["name"])
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244 log.debug(u"destination file path set to {}".format(file_path))
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245
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diff changeset
246 # we manage case where file already exists
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diff changeset
247 if os.path.exists(file_path):
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248
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diff changeset
249 def check_overwrite(overwrite):
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diff changeset
250 if overwrite:
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251 self.openFileWrite(
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252 client, file_path, transfer_data, file_data, stream_object
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253 )
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254 return True
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255 else:
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256 return self.getDestDir(client, peer_jid, transfer_data, file_data)
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257
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258 exists_d = xml_tools.deferConfirm(
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259 self.host,
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260 _(CONFIRM_OVERWRITE).format(file_path),
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261 _(CONFIRM_OVERWRITE_TITLE),
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262 action_extra={
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263 "meta_from_jid": peer_jid.full(),
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264 "meta_type": C.META_TYPE_OVERWRITE,
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265 "meta_progress_id": file_data[PROGRESS_ID_KEY],
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266 },
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267 security_limit=SECURITY_LIMIT,
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268 profile=client.profile,
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269 )
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270 exists_d.addCallback(check_overwrite)
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271 return exists_d
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272
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273 self.openFileWrite(client, file_path, transfer_data, file_data, stream_object)
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274 return True
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275
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276 def getDestDir(self, client, peer_jid, transfer_data, file_data, stream_object=False):
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277 """Request confirmation and destination dir to user
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278
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279 Overwrite confirmation is managed.
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280 if transfer is confirmed, 'file_obj' is added to transfer_data
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281 @param peer_jid(jid.JID): jid of the file sender
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282 @param filename(unicode): name of the file
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283 @param transfer_data(dict): data of the transfer session,
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284 it will be only used to store the file_obj.
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parents: 2483
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285 "file_obj" (or "stream_object") key *MUST NOT* exist before using getDestDir
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286 @param file_data(dict): information about the file to be transfered
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287 It MUST contain the following keys:
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288 - peer_jid (jid.JID): other peer jid
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289 - name (unicode): name of the file to trasnsfer
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290 the name must not be empty or contain a "/" character
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291 - size (int): size of the file
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292 - desc (unicode): description of the file
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293 - progress_id (unicode): id to use for progression
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294 It *MUST NOT* contain the "peer" key
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295 It may contain:
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296 - data_cb (callable): method called on each data read/write
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297 "file_path" will be added to this dict once destination selected
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298 "size_human" will also be added with human readable file size
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299 @param stream_object(bool): if True, a stream_object will be used instead of file_obj
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300 a stream.FileStreamObject will be used
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301 return (defer.Deferred): True if transfer is accepted
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302 """
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303 cont, ret_value = self.host.trigger.returnPoint(
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304 "FILE_getDestDir", client, peer_jid, transfer_data, file_data, stream_object
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305 )
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306 if not cont:
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307 return ret_value
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308 filename = file_data["name"]
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309 assert filename and not "/" in filename
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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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parents: 1575
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310 assert PROGRESS_ID_KEY in file_data
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311 # human readable size
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312 file_data["size_human"] = u"{:.6n} Mio".format(
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313 float(file_data["size"]) / (1024 ** 2)
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314 )
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315 d = xml_tools.deferDialog(
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316 self.host,
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317 _(CONFIRM).format(peer=peer_jid.full(), **file_data),
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318 _(CONFIRM_TITLE),
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319 type_=C.XMLUI_DIALOG_FILE,
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320 options={C.XMLUI_DATA_FILETYPE: C.XMLUI_DATA_FILETYPE_DIR},
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321 action_extra={
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322 "meta_from_jid": peer_jid.full(),
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323 "meta_type": C.META_TYPE_FILE,
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parents: 2562
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324 "meta_progress_id": file_data[PROGRESS_ID_KEY],
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Goffi <goffi@goffi.org>
parents: 2562
diff changeset
325 },
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diff changeset
326 security_limit=SECURITY_LIMIT,
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327 profile=client.profile,
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328 )
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329 d.addCallback(
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330 self._gotConfirmation,
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331 client,
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332 peer_jid,
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333 transfer_data,
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334 file_data,
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335 stream_object,
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336 )
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337 return d