Mercurial > libervia-backend
annotate sat/plugins/plugin_comp_file_sharing_management.py @ 3059:aa728dc7b0ce
core: `history is skipped as requested` log message is now at debug level
author | Goffi <goffi@goffi.org> |
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date | Fri, 18 Oct 2019 14:36:46 +0200 |
parents | ab2696e34d29 |
children | 9d0df638c8b4 |
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3028 | 1 #!/usr/bin/env python3 |
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2 # -*- coding: utf-8 -*- |
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3 |
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4 # SAT plugin to detect language (experimental) |
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5 # Copyright (C) 2009-2019 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 import os.path |
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21 from functools import partial |
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22 from sat.core.i18n import _, D_ |
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23 from sat.core import exceptions |
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24 from sat.core.constants import Const as C |
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25 from sat.core.log import getLogger |
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26 from wokkel import data_form |
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27 from twisted.internet import defer |
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28 from twisted.words.protocols.jabber import jid |
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29 |
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30 log = getLogger(__name__) |
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31 |
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32 |
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33 PLUGIN_INFO = { |
3028 | 34 C.PI_NAME: "File Sharing Management", |
35 C.PI_IMPORT_NAME: "FILE_SHARING_MANAGEMENT", | |
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36 C.PI_MODES: [C.PLUG_MODE_COMPONENT], |
3028 | 37 C.PI_TYPE: "EXP", |
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38 C.PI_PROTOCOLS: [], |
3028 | 39 C.PI_DEPENDENCIES: ["XEP-0050", "XEP-0264"], |
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40 C.PI_RECOMMENDATIONS: [], |
3028 | 41 C.PI_MAIN: "FileSharingManagement", |
42 C.PI_HANDLER: "no", | |
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43 C.PI_DESCRIPTION: _( |
3028 | 44 "Experimental handling of file management for file sharing. This plugins allows " |
45 "to change permissions of stored files/directories or remove them." | |
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46 ), |
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47 } |
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48 |
3028 | 49 NS_FILE_MANAGEMENT = "https://salut-a-toi.org/protocol/file-management:0" |
50 NS_FILE_MANAGEMENT_PERM = "https://salut-a-toi.org/protocol/file-management:0#perm" | |
51 NS_FILE_MANAGEMENT_DELETE = "https://salut-a-toi.org/protocol/file-management:0#delete" | |
52 NS_FILE_MANAGEMENT_THUMB = "https://salut-a-toi.org/protocol/file-management:0#thumb" | |
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53 |
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54 |
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55 class WorkflowError(Exception): |
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56 """Raised when workflow can't be completed""" |
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57 |
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58 def __init__(self, err_args): |
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59 """ |
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60 @param err_args(tuple): arguments to return to finish the command workflow |
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61 """ |
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62 Exception.__init__(self) |
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63 self.err_args = err_args |
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64 |
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65 |
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66 class FileSharingManagement(object): |
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67 # This is a temporary way (Q&D) to handle stored files, a better way (using pubsub |
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68 # syntax?) should be elaborated and proposed as a standard. |
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69 |
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70 def __init__(self, host): |
3028 | 71 log.info(_("File Sharing Management plugin initialization")) |
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72 self.host = host |
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73 self._c = host.plugins["XEP-0050"] |
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74 self._t = host.plugins["XEP-0264"] |
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75 self.files_path = host.getLocalPath(None, C.FILES_DIR, profile=False) |
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76 |
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77 def profileConnected(self, client): |
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78 self._c.addAdHocCommand( |
3028 | 79 client, self._onChangeFile, "Change Permissions of File(s)", |
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80 node=NS_FILE_MANAGEMENT_PERM, |
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81 allowed_magics=C.ENTITY_ALL, |
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82 ) |
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83 self._c.addAdHocCommand( |
3028 | 84 client, self._onDeleteFile, "Delete File(s)", |
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85 node=NS_FILE_MANAGEMENT_DELETE, |
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86 allowed_magics=C.ENTITY_ALL, |
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87 ) |
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88 self._c.addAdHocCommand( |
3028 | 89 client, self._onGenThumbnails, "Generate Thumbnails", |
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90 node=NS_FILE_MANAGEMENT_THUMB, |
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91 allowed_magics=C.ENTITY_ALL, |
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92 ) |
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93 |
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94 def _err(self, reason): |
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95 """Helper method to get argument to return for error |
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96 |
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97 workflow will be interrupted with an error note |
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98 @param reason(unicode): reason of the error |
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99 @return (tuple): arguments to use in defer.returnValue |
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100 """ |
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101 status = self._c.STATUS.COMPLETED |
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102 payload = None |
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103 note = (self._c.NOTE.ERROR, reason) |
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104 return payload, status, None, note |
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105 |
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106 def _getRootArgs(self): |
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107 """Create the form to select the file to use |
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108 |
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109 @return (tuple): arguments to use in defer.returnValue |
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110 """ |
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111 status = self._c.STATUS.EXECUTING |
3028 | 112 form = data_form.Form("form", title="File Management", |
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113 formNamespace=NS_FILE_MANAGEMENT) |
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114 |
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115 field = data_form.Field( |
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116 "text-single", "path", required=True |
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117 ) |
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118 form.addField(field) |
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119 |
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120 field = data_form.Field( |
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121 "text-single", "namespace", required=False |
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122 ) |
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123 form.addField(field) |
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124 |
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125 payload = form.toElement() |
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126 return payload, status, None, None |
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127 |
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128 @defer.inlineCallbacks |
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129 def _getFileData(self, client, session_data, command_form): |
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130 """Retrieve field requested in root form |
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131 |
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132 "found_file" will also be set in session_data |
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133 @param command_form(data_form.Form): response to root form |
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134 @return (D(dict)): found file data |
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135 @raise WorkflowError: something is wrong |
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136 """ |
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137 fields = command_form.fields |
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138 try: |
3028 | 139 path = fields['path'].value.strip() |
140 namespace = fields['namespace'].value or None | |
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141 except KeyError: |
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142 self._c.adHocError(self._c.ERROR.BAD_PAYLOAD) |
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143 |
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144 if not path: |
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145 self._c.adHocError(self._c.ERROR.BAD_PAYLOAD) |
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146 |
3028 | 147 requestor = session_data['requestor'] |
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148 requestor_bare = requestor.userhostJID() |
3028 | 149 path = path.rstrip('/') |
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150 parent_path, basename = os.path.split(path) |
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151 |
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152 # TODO: if parent_path and basename are empty, we ask for root directory |
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153 # this must be managed |
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154 |
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155 try: |
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156 found_files = yield self.host.memory.getFiles( |
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157 client, requestor_bare, path=parent_path, name=basename, |
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158 namespace=namespace) |
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159 found_file = found_files[0] |
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160 except (exceptions.NotFound, IndexError): |
3028 | 161 raise WorkflowError(self._err(_("file not found"))) |
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162 except exceptions.PermissionError: |
3028 | 163 raise WorkflowError(self._err(_("forbidden"))) |
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164 |
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165 if found_file['owner'] != requestor_bare: |
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166 # only owner can manage files |
3028 | 167 log.warning(_("Only owner can manage files")) |
168 raise WorkflowError(self._err(_("forbidden"))) | |
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169 |
3028 | 170 session_data['found_file'] = found_file |
171 session_data['namespace'] = namespace | |
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172 defer.returnValue(found_file) |
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173 |
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174 def _updateReadPermission(self, access, allowed_jids): |
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175 if not allowed_jids: |
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176 if C.ACCESS_PERM_READ in access: |
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177 del access[C.ACCESS_PERM_READ] |
3028 | 178 elif allowed_jids == 'PUBLIC': |
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179 access[C.ACCESS_PERM_READ] = { |
3028 | 180 "type": C.ACCESS_TYPE_PUBLIC |
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181 } |
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182 else: |
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183 access[C.ACCESS_PERM_READ] = { |
3028 | 184 "type": C.ACCESS_TYPE_WHITELIST, |
185 "jids": [j.full() for j in allowed_jids] | |
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186 } |
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187 |
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188 @defer.inlineCallbacks |
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189 def _updateDir(self, client, requestor, namespace, file_data, allowed_jids): |
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190 """Recursively update permission of a directory and all subdirectories |
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191 |
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192 @param file_data(dict): metadata of the file |
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193 @param allowed_jids(list[jid.JID]): list of entities allowed to read the file |
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194 """ |
3028 | 195 assert file_data['type'] == C.FILE_TYPE_DIRECTORY |
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196 files_data = yield self.host.memory.getFiles( |
3028 | 197 client, requestor, parent=file_data['id'], namespace=namespace) |
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198 |
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199 for file_data in files_data: |
3028 | 200 if not file_data['access'].get(C.ACCESS_PERM_READ, {}): |
201 log.debug("setting {perm} read permission for {name}".format( | |
202 perm=allowed_jids, name=file_data['name'])) | |
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203 yield self.host.memory.fileUpdate( |
3028 | 204 file_data['id'], 'access', |
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205 partial(self._updateReadPermission, allowed_jids=allowed_jids)) |
3028 | 206 if file_data['type'] == C.FILE_TYPE_DIRECTORY: |
207 yield self._updateDir(client, requestor, namespace, file_data, 'PUBLIC') | |
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208 |
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209 @defer.inlineCallbacks |
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210 def _onChangeFile(self, client, command_elt, session_data, action, node): |
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211 try: |
3028 | 212 x_elt = next(command_elt.elements(data_form.NS_X_DATA, "x")) |
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213 command_form = data_form.Form.fromElement(x_elt) |
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214 except StopIteration: |
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215 command_form = None |
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216 |
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217 found_file = session_data.get('found_file') |
3028 | 218 requestor = session_data['requestor'] |
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219 requestor_bare = requestor.userhostJID() |
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220 |
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221 if command_form is None or len(command_form.fields) == 0: |
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222 # root request |
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223 defer.returnValue(self._getRootArgs()) |
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224 |
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225 elif found_file is None: |
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226 # file selected, we retrieve it and ask for permissions |
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227 try: |
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228 found_file = yield self._getFileData(client, session_data, command_form) |
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229 except WorkflowError as e: |
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230 defer.returnValue(e.err_args) |
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231 |
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232 # management request |
3028 | 233 if found_file['type'] == C.FILE_TYPE_DIRECTORY: |
234 instructions = D_("Please select permissions for this directory") | |
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235 else: |
3028 | 236 instructions = D_("Please select permissions for this file") |
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237 |
3028 | 238 form = data_form.Form("form", title="File Management", |
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239 instructions=[instructions], |
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240 formNamespace=NS_FILE_MANAGEMENT) |
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241 field = data_form.Field( |
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242 "text-multi", "read_allowed", required=False, |
3028 | 243 desc='list of jids allowed to read this file (beside yourself), or ' |
244 '"PUBLIC" to let a public access' | |
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245 ) |
3028 | 246 read_access = found_file["access"].get(C.ACCESS_PERM_READ, {}) |
247 access_type = read_access.get('type', C.ACCESS_TYPE_WHITELIST) | |
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248 if access_type == C.ACCESS_TYPE_PUBLIC: |
3028 | 249 field.values = ['PUBLIC'] |
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250 else: |
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251 field.values = read_access.get('jids', []) |
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252 form.addField(field) |
3028 | 253 if found_file['type'] == C.FILE_TYPE_DIRECTORY: |
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254 field = data_form.Field( |
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255 "boolean", "recursive", value=False, required=False, |
3028 | 256 desc="Files under it will be made public to follow this dir " |
257 "permission (only if they don't have already a permission set)." | |
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258 ) |
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259 form.addField(field) |
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260 |
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261 status = self._c.STATUS.EXECUTING |
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262 payload = form.toElement() |
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263 defer.returnValue((payload, status, None, None)) |
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264 |
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265 else: |
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266 # final phase, we'll do permission change here |
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267 try: |
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268 read_allowed = command_form.fields['read_allowed'] |
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269 except KeyError: |
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270 self._c.adHocError(self._c.ERROR.BAD_PAYLOAD) |
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271 |
3028 | 272 if read_allowed.value == 'PUBLIC': |
273 allowed_jids = 'PUBLIC' | |
274 elif read_allowed.value.strip() == '': | |
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275 allowed_jids = None |
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276 else: |
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277 try: |
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278 allowed_jids = [jid.JID(v.strip()) for v in read_allowed.values |
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279 if v.strip()] |
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280 except RuntimeError as e: |
3028 | 281 log.warning(_("Can't use read_allowed values: {reason}").format( |
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282 reason=e)) |
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283 self._c.adHocError(self._c.ERROR.BAD_PAYLOAD) |
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284 |
3028 | 285 if found_file['type'] == C.FILE_TYPE_FILE: |
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286 yield self.host.memory.fileUpdate( |
3028 | 287 found_file['id'], 'access', |
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288 partial(self._updateReadPermission, allowed_jids=allowed_jids)) |
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289 else: |
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290 try: |
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291 recursive = command_form.fields['recursive'] |
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292 except KeyError: |
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293 self._c.adHocError(self._c.ERROR.BAD_PAYLOAD) |
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294 yield self.host.memory.fileUpdate( |
3028 | 295 found_file['id'], 'access', |
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296 partial(self._updateReadPermission, allowed_jids=allowed_jids)) |
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297 if recursive: |
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298 # we set all file under the directory as public (if they haven't |
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299 # already a permission set), so allowed entities of root directory |
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300 # can read them. |
3028 | 301 namespace = session_data['namespace'] |
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302 yield self._updateDir( |
3028 | 303 client, requestor_bare, namespace, found_file, 'PUBLIC') |
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304 |
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305 # job done, we can end the session |
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306 status = self._c.STATUS.COMPLETED |
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307 payload = None |
3028 | 308 note = (self._c.NOTE.INFO, _("management session done")) |
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309 defer.returnValue((payload, status, None, note)) |
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310 |
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311 @defer.inlineCallbacks |
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312 def _onDeleteFile(self, client, command_elt, session_data, action, node): |
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313 try: |
3028 | 314 x_elt = next(command_elt.elements(data_form.NS_X_DATA, "x")) |
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315 command_form = data_form.Form.fromElement(x_elt) |
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316 except StopIteration: |
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317 command_form = None |
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318 |
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319 found_file = session_data.get('found_file') |
3028 | 320 requestor = session_data['requestor'] |
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321 requestor_bare = requestor.userhostJID() |
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322 |
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323 if command_form is None or len(command_form.fields) == 0: |
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324 # root request |
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325 defer.returnValue(self._getRootArgs()) |
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326 |
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327 elif found_file is None: |
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328 # file selected, we need confirmation before actually deleting |
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329 try: |
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330 found_file = yield self._getFileData(client, session_data, command_form) |
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331 except WorkflowError as e: |
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332 defer.returnValue(e.err_args) |
3028 | 333 if found_file['type'] == C.FILE_TYPE_DIRECTORY: |
334 msg = D_("Are you sure to delete directory {name} and all files and " | |
335 "directories under it?").format(name=found_file['name']) | |
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336 else: |
3028 | 337 msg = D_("Are you sure to delete file {name}?" |
338 .format(name=found_file['name'])) | |
339 form = data_form.Form("form", title="File Management", | |
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340 instructions = [msg], |
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341 formNamespace=NS_FILE_MANAGEMENT) |
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342 field = data_form.Field( |
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343 "boolean", "confirm", value=False, required=True, |
3028 | 344 desc="check this box to confirm" |
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345 ) |
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346 form.addField(field) |
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347 status = self._c.STATUS.EXECUTING |
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348 payload = form.toElement() |
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349 defer.returnValue((payload, status, None, None)) |
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350 |
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351 else: |
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352 # final phase, we'll do deletion here |
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353 try: |
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354 confirmed = command_form.fields['confirm'] |
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355 except KeyError: |
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356 self._c.adHocError(self._c.ERROR.BAD_PAYLOAD) |
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357 if not confirmed: |
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358 note = None |
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359 else: |
3028 | 360 recursive = found_file['type'] == C.FILE_TYPE_DIRECTORY |
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361 yield self.host.memory.fileDelete( |
3028 | 362 client, requestor_bare, found_file['id'], recursive) |
363 note = (self._c.NOTE.INFO, _("file deleted")) | |
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364 status = self._c.STATUS.COMPLETED |
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365 payload = None |
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366 defer.returnValue((payload, status, None, note)) |
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367 |
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368 def _updateThumbs(self, extra, thumbnails): |
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369 extra[C.KEY_THUMBNAILS] = thumbnails |
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370 |
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371 @defer.inlineCallbacks |
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372 def _genThumbs(self, client, requestor, namespace, file_data): |
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373 """Recursively generate thumbnails |
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374 |
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375 @param file_data(dict): metadata of the file |
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376 """ |
3028 | 377 if file_data['type'] == C.FILE_TYPE_DIRECTORY: |
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378 sub_files_data = yield self.host.memory.getFiles( |
3028 | 379 client, requestor, parent=file_data['id'], namespace=namespace) |
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380 for sub_file_data in sub_files_data: |
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381 yield self._genThumbs(client, requestor, namespace, sub_file_data) |
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382 |
3028 | 383 elif file_data['type'] == C.FILE_TYPE_FILE: |
384 mime_type = file_data['mime_type'] | |
385 file_path = os.path.join(self.files_path, file_data['file_hash']) | |
386 if mime_type is not None and mime_type.startswith("image"): | |
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387 thumbnails = [] |
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388 |
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389 for max_thumb_size in (self._t.SIZE_SMALL, self._t.SIZE_MEDIUM): |
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390 try: |
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391 thumb_size, thumb_id = yield self._t.generateThumbnail( |
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392 file_path, |
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393 max_thumb_size, |
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394 # we keep thumbnails for 6 months |
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395 60 * 60 * 24 * 31 * 6, |
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396 ) |
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397 except Exception as e: |
3028 | 398 log.warning(_("Can't create thumbnail: {reason}") |
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399 .format(reason=e)) |
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400 break |
3028 | 401 thumbnails.append({"id": thumb_id, "size": thumb_size}) |
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402 |
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403 yield self.host.memory.fileUpdate( |
3028 | 404 file_data['id'], 'extra', |
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405 partial(self._updateThumbs, thumbnails=thumbnails)) |
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406 |
3028 | 407 log.info("thumbnails for [{file_name}] generated" |
408 .format(file_name=file_data['name'])) | |
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409 |
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410 else: |
3028 | 411 log.warning("unmanaged file type: {type_}".format(type_=file_data['type'])) |
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412 |
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413 @defer.inlineCallbacks |
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414 def _onGenThumbnails(self, client, command_elt, session_data, action, node): |
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415 try: |
3028 | 416 x_elt = next(command_elt.elements(data_form.NS_X_DATA, "x")) |
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417 command_form = data_form.Form.fromElement(x_elt) |
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418 except StopIteration: |
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419 command_form = None |
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420 |
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421 found_file = session_data.get('found_file') |
3028 | 422 requestor = session_data['requestor'] |
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423 |
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424 if command_form is None or len(command_form.fields) == 0: |
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425 # root request |
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426 defer.returnValue(self._getRootArgs()) |
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427 |
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428 elif found_file is None: |
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429 # file selected, we retrieve it and ask for permissions |
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430 try: |
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431 found_file = yield self._getFileData(client, session_data, command_form) |
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432 except WorkflowError as e: |
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433 defer.returnValue(e.err_args) |
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434 |
3028 | 435 log.info("Generating thumbnails as requested") |
436 yield self._genThumbs(client, requestor, found_file['namespace'], found_file) | |
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437 |
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438 # job done, we can end the session |
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439 status = self._c.STATUS.COMPLETED |
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440 payload = None |
3028 | 441 note = (self._c.NOTE.INFO, _("thumbnails generated")) |
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442 defer.returnValue((payload, status, None, note)) |