Mercurial > libervia-backend

annotate sat/plugins/plugin_misc_file.py @ 3185:554b3b632378

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memory (cache): purge + pathlib: - cache is now purged on backend startup (every file which has passed EOL will be deleted) - use of pathlib, getPath now returns a Path
author Goffi <goffi@goffi.org>
date Wed, 26 Feb 2020 15:54:43 +0100
parents f2bb57348587
children 404d4b29de52
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1 #!/usr/bin/env python3
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2
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3
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4 # SAT plugin for file tansfer
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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 _, 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_("Please select a file to send to {peer}")
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49 SENDING_TITLE = D_("File sending")
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50 CONFIRM = D_(
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51 '{peer} wants to send the file "{name}" to you:\n{desc}\n\nThe file has a size of '
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52 '{size_human}\n\nDo you accept ?'
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53 )
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54 CONFIRM_TITLE = D_("Confirm file transfer")
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55 CONFIRM_OVERWRITE = D_("File {} already exists, are you sure you want to overwrite ?")
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56 CONFIRM_OVERWRITE_TITLE = D_("File exists")
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57 SECURITY_LIMIT = 30
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58
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59 PROGRESS_ID_KEY = "progress_id"
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60
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61
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62 class FilePlugin:
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63 File = stream.SatFile
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64
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65 def __init__(self, host):
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66 log.info(_("plugin File initialization"))
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67 self.host = host
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68 host.bridge.addMethod(
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69 "fileSend",
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70 ".plugin",
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71 in_sign="ssssa{ss}s",
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72 out_sign="a{ss}",
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73 method=self._fileSend,
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74 async_=True,
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75 )
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76 self._file_callbacks = []
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77 host.importMenu(
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78 (D_("Action"), D_("send file")),
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79 self._fileSendMenu,
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80 security_limit=10,
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81 help_string=D_("Send a file"),
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82 type_=C.MENU_SINGLE,
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83 )
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84
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85 def _fileSend(self, peer_jid_s, filepath, name="", file_desc="", extra=None,
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86 profile=C.PROF_KEY_NONE):
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87 client = self.host.getClient(profile)
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88 return self.fileSend(
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89 client, jid.JID(peer_jid_s), filepath, name or None, file_desc or None, extra
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90 )
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92 @defer.inlineCallbacks
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93 def fileSend(
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94 self, client, peer_jid, filepath, filename=None, file_desc=None, extra=None
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95 ):
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96 """Send a file using best available method
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98 @param peer_jid(jid.JID): jid of the destinee
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99 @param filepath(str): absolute path to the file
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100 @param filename(unicode, None): name to use, or None to find it from filepath
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101 @param file_desc(unicode, None): description of the file
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102 @param profile: %(doc_profile)s
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103 @return (dict): action dictionary, with progress id in case of success, else
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104 xmlui message
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105 """
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106 if not os.path.isfile(filepath):
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107 raise exceptions.DataError("The given path doesn't link to a file")
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108 if not filename:
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109 filename = os.path.basename(filepath) or "_"
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110 for namespace, callback, priority, method_name in self._file_callbacks:
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111 has_feature = yield self.host.hasFeature(client, namespace, peer_jid)
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112 if has_feature:
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113 log.info(
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114 "{name} method will be used to send the file".format(
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115 name=method_name
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116 )
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117 )
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118 progress_id = yield callback(
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119 client, peer_jid, filepath, filename, file_desc, extra
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120 )
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121 defer.returnValue({"progress": progress_id})
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122 msg = "Can't find any method to send file to {jid}".format(jid=peer_jid.full())
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123 log.warning(msg)
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124 defer.returnValue(
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125 {
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126 "xmlui": xml_tools.note(
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127 "Can't transfer file", msg, C.XMLUI_DATA_LVL_WARNING
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128 ).toXml()
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129 }
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130 )
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131
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132 def _onFileChoosed(self, client, peer_jid, data):
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133 cancelled = C.bool(data.get("cancelled", C.BOOL_FALSE))
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134 if cancelled:
591e04f0103c plugin file: added "Action/send" file menu
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135 return
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136 path = data["path"]
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137 return self.fileSend(client, peer_jid, path)
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138
591e04f0103c plugin file: added "Action/send" file menu
Goffi <goffi@goffi.org>
parents: 1626
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139 def _fileSendMenu(self, data, profile):
591e04f0103c plugin file: added "Action/send" file menu
Goffi <goffi@goffi.org>
parents: 1626
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140 """ XMLUI activated by menu: return file sending UI
591e04f0103c plugin file: added "Action/send" file menu
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141
591e04f0103c plugin file: added "Action/send" file menu
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142 @param profile: %(doc_profile)s
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parents: 1626
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143 """
591e04f0103c plugin file: added "Action/send" file menu
Goffi <goffi@goffi.org>
parents: 1626
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144 try:
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145 jid_ = jid.JID(data["jid"])
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146 except RuntimeError:
591e04f0103c plugin file: added "Action/send" file menu
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147 raise exceptions.DataError(_("Invalid JID"))
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148
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149 file_choosed_id = self.host.registerCallback(
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150 lambda data, profile: self._onFileChoosed(
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151 self.host.getClient(profile), jid_, data
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parents: 2562
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152 ),
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parents: 2562
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153 with_data=True,
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154 one_shot=True,
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155 )
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156 xml_ui = xml_tools.XMLUI(
591e04f0103c plugin file: added "Action/send" file menu
Goffi <goffi@goffi.org>
parents: 1626
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157 C.XMLUI_DIALOG,
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158 dialog_opt={
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159 C.XMLUI_DATA_TYPE: C.XMLUI_DIALOG_FILE,
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parents: 2562
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160 C.XMLUI_DATA_MESS: _(SENDING).format(peer=jid_.full()),
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parents: 2562
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161 },
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parents: 2562
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162 title=_(SENDING_TITLE),
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163 submit_id=file_choosed_id,
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parents: 2562
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164 )
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165
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166 return {"xmlui": xml_ui.toXml()}
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parents: 1626
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167
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Goffi <goffi@goffi.org>
parents: 1575
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168 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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169 """Register a fileSending method
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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170
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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171 @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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172 @param callback(callable): method to call (must have the same signature as [fileSend])
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173 @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
Goffi <goffi@goffi.org>
parents: 1575
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174 @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
Goffi <goffi@goffi.org>
parents: 1575
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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
Goffi <goffi@goffi.org>
parents: 1575
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176 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
Goffi <goffi@goffi.org>
parents: 1575
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177 if namespace == data[0]:
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178 raise exceptions.ConflictError(
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179 "A method with this namespace is already registered"
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180 )
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181 self._file_callbacks.append(
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182 (namespace, callback, priority, method_name or namespace)
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183 )
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parents: 1575
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184 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
Goffi <goffi@goffi.org>
parents: 1575
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185
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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186 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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187 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
Goffi <goffi@goffi.org>
parents: 1575
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188 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
Goffi <goffi@goffi.org>
parents: 1575
diff changeset
189 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
Goffi <goffi@goffi.org>
parents: 1575
diff changeset
190 return
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diff changeset
191 raise exceptions.NotFound("The namespace to unregister doesn't exist")
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Goffi <goffi@goffi.org>
parents:
diff changeset
192
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193 # Dialogs with user
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194 # the overwrite check is done here
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195
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196 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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197 """create SatFile or FileStremaObject for the requested file and fill suitable data
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198 """
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199 if stream_object:
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200 assert "stream_object" not in transfer_data
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201 transfer_data["stream_object"] = stream.FileStreamObject(
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202 self.host,
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203 client,
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204 file_path,
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205 mode="wb",
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206 uid=file_data[PROGRESS_ID_KEY],
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207 size=file_data["size"],
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208 data_cb=file_data.get("data_cb"),
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209 )
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210 else:
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211 assert "file_obj" not in transfer_data
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212 transfer_data["file_obj"] = stream.SatFile(
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213 self.host,
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214 client,
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215 file_path,
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216 mode="wb",
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217 uid=file_data[PROGRESS_ID_KEY],
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218 size=file_data["size"],
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219 data_cb=file_data.get("data_cb"),
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220 )
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221
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222 def _gotConfirmation(
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223 self, data, client, peer_jid, transfer_data, file_data, stream_object
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224 ):
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225 """Called when the permission and dest path have been received
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226
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diff changeset
227 @param peer_jid(jid.JID): jid of the file sender
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228 @param transfer_data(dict): same as for [self.getDestDir]
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229 @param file_data(dict): same as for [self.getDestDir]
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230 @param stream_object(bool): same as for [self.getDestDir]
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diff changeset
231 return (bool): True if copy is wanted and OK
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diff changeset
232 False if user wants to cancel
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diff changeset
233 if file exists ask confirmation and call again self._getDestDir if needed
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234 """
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diff changeset
235 if data.get("cancelled", False):
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236 return False
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diff changeset
237 path = data["path"]
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diff changeset
238 file_data["file_path"] = file_path = os.path.join(path, file_data["name"])
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diff changeset
239 log.debug("destination file path set to {}".format(file_path))
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diff changeset
240
babd97d80049 plugins XEP-0234, file: moved file request dialog to file plugin
Goffi <goffi@goffi.org>
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diff changeset
241 # we manage case where file already exists
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diff changeset
242 if os.path.exists(file_path):
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diff changeset
243
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diff changeset
244 def check_overwrite(overwrite):
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diff changeset
245 if overwrite:
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246 self.openFileWrite(
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diff changeset
247 client, file_path, transfer_data, file_data, stream_object
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248 )
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249 return True
babd97d80049 plugins XEP-0234, file: moved file request dialog to file plugin
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250 else:
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251 return self.getDestDir(client, peer_jid, transfer_data, file_data)
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252
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diff changeset
253 exists_d = xml_tools.deferConfirm(
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diff changeset
254 self.host,
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diff changeset
255 _(CONFIRM_OVERWRITE).format(file_path),
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diff changeset
256 _(CONFIRM_OVERWRITE_TITLE),
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257 action_extra={
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258 "meta_from_jid": peer_jid.full(),
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259 "meta_type": C.META_TYPE_OVERWRITE,
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260 "meta_progress_id": file_data[PROGRESS_ID_KEY],
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261 },
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262 security_limit=SECURITY_LIMIT,
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263 profile=client.profile,
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264 )
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265 exists_d.addCallback(check_overwrite)
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266 return exists_d
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267
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268 self.openFileWrite(client, file_path, transfer_data, file_data, stream_object)
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269 return True
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270
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271 def getDestDir(self, client, peer_jid, transfer_data, file_data, stream_object=False):
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272 """Request confirmation and destination dir to user
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273
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274 Overwrite confirmation is managed.
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275 if transfer is confirmed, 'file_obj' is added to transfer_data
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276 @param peer_jid(jid.JID): jid of the file sender
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277 @param filename(unicode): name of the file
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278 @param transfer_data(dict): data of the transfer session,
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279 it will be only used to store the file_obj.
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280 "file_obj" (or "stream_object") key *MUST NOT* exist before using getDestDir
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281 @param file_data(dict): information about the file to be transfered
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282 It MUST contain the following keys:
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283 - peer_jid (jid.JID): other peer jid
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284 - name (unicode): name of the file to trasnsfer
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285 the name must not be empty or contain a "/" character
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286 - size (int): size of the file
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287 - desc (unicode): description of the file
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288 - progress_id (unicode): id to use for progression
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289 It *MUST NOT* contain the "peer" key
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290 It may contain:
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291 - data_cb (callable): method called on each data read/write
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292 "file_path" will be added to this dict once destination selected
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293 "size_human" will also be added with human readable file size
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294 @param stream_object(bool): if True, a stream_object will be used instead of file_obj
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295 a stream.FileStreamObject will be used
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296 return (defer.Deferred): True if transfer is accepted
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297 """
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298 cont, ret_value = self.host.trigger.returnPoint(
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299 "FILE_getDestDir", client, peer_jid, transfer_data, file_data, stream_object
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300 )
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301 if not cont:
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302 return ret_value
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303 filename = file_data["name"]
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304 assert filename and not "/" in filename
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305 assert PROGRESS_ID_KEY in file_data
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306 # human readable size
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307 file_data["size_human"] = "{:.6n} Mio".format(
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308 float(file_data["size"]) / (1024 ** 2)
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309 )
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310 d = xml_tools.deferDialog(
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311 self.host,
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312 _(CONFIRM).format(peer=peer_jid.full(), **file_data),
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313 _(CONFIRM_TITLE),
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314 type_=C.XMLUI_DIALOG_FILE,
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315 options={C.XMLUI_DATA_FILETYPE: C.XMLUI_DATA_FILETYPE_DIR},
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316 action_extra={
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317 "meta_from_jid": peer_jid.full(),
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318 "meta_type": C.META_TYPE_FILE,
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319 "meta_progress_id": file_data[PROGRESS_ID_KEY],
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320 },
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321 security_limit=SECURITY_LIMIT,
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322 profile=client.profile,
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323 )
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324 d.addCallback(
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325 self._gotConfirmation,
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326 client,
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327 peer_jid,
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328 transfer_data,
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329 file_data,
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330 stream_object,
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331 )
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332 return d