annotate sat/plugins/plugin_misc_upload.py @ 3528:849374e59178

component file sharing: quotas implementation: quotas can now be specified using the `quotas_json` option of `component file_sharing` section in settings. This must be a dict where: - `users` key contains default quotas for all users - `admins` key contains quotas for administrators (not implemented yet) - `jids` contain bare JID to quota mapping, to have user-specific quota The value can be either a int for quota in bytes, or a case insensitive string with an optional multiplier symbol (e.g. "500 Mio"). `None` can be used for explicit unlimited quota (which is the default is `users` is not set). When a file size is too big for quota, upload is refused with an error message indicating allowed quota, used space, and the size of the file that user wants to upload.
author Goffi <goffi@goffi.org>
date Wed, 05 May 2021 15:37:33 +0200
parents be6d91572633
children 1658472abd77
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1 #!/usr/bin/env python3
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2
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3 # SAT plugin for uploading files
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4 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
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5
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6 # This program is free software: you can redistribute it and/or modify
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7 # it under the terms of the GNU Affero General Public License as published by
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8 # the Free Software Foundation, either version 3 of the License, or
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9 # (at your option) any later version.
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10
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11 # This program is distributed in the hope that it will be useful,
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 # GNU Affero General Public License for more details.
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15
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16 # You should have received a copy of the GNU Affero General Public License
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17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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18
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19 import os
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20 import os.path
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21 from twisted.internet import defer
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22 from twisted.words.protocols.jabber import jid
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23 from twisted.words.protocols.jabber import error as jabber_error
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24 from sat.core.i18n import _, D_
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25 from sat.core.constants import Const as C
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26 from sat.tools.common import data_format
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27 from sat.core.log import getLogger
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28 from sat.core import exceptions
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29 from sat.tools import xml_tools
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30
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31 log = getLogger(__name__)
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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 Upload",
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36 C.PI_IMPORT_NAME: "UPLOAD",
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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: "UploadPlugin",
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40 C.PI_HANDLER: "no",
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41 C.PI_DESCRIPTION: _("""File upload management"""),
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42 }
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43
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44
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45 UPLOADING = D_("Please select a file to upload")
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46 UPLOADING_TITLE = D_("File upload")
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47
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48
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49 class UploadPlugin(object):
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50 # TODO: plugin unload
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51
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52 def __init__(self, host):
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53 log.info(_("plugin Upload initialization"))
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54 self.host = host
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55 host.bridge.addMethod(
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56 "fileUpload",
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57 ".plugin",
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58 in_sign="sssss",
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59 out_sign="a{ss}",
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60 method=self._fileUpload,
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61 async_=True,
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62 )
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63 self._upload_callbacks = []
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64
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65 def _fileUpload(
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66 self, filepath, filename, upload_jid_s="", options='', profile=C.PROF_KEY_NONE
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67 ):
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68 client = self.host.getClient(profile)
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69 upload_jid = jid.JID(upload_jid_s) if upload_jid_s else None
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70 options = data_format.deserialise(options)
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71
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72 return defer.ensureDeferred(self.fileUpload(
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73 client, filepath, filename or None, upload_jid, options
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74 ))
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75
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76 async def fileUpload(self, client, filepath, filename, upload_jid, options):
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77 """Send a file using best available method
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78
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79 parameters are the same as for [upload]
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80 @return (dict): action dictionary, with progress id in case of success, else xmlui
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81 message
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82 """
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83
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84 try:
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85 progress_id, __ = await self.upload(
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86 client, filepath, filename, upload_jid, options)
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87 except Exception as e:
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88 if (isinstance(e, jabber_error.StanzaError)
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89 and e.condition == 'not-acceptable'):
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90 reason = e.text
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91 else:
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92 reason = str(e)
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93 msg = D_("Can't upload file: {reason}").format(reason=reason)
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94 log.warning(msg)
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95 return {
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96 "xmlui": xml_tools.note(
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97 msg, D_("Can't upload file"), C.XMLUI_DATA_LVL_WARNING
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98 ).toXml()
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99 }
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100 else:
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101 return {"progress": progress_id}
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102
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103 async def upload(self, client, filepath, filename=None, upload_jid=None,
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104 options=None):
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105 """Send a file using best available method
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106
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107 @param filepath(str): absolute path to the file
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108 @param filename(None, unicode): name to use for the upload
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109 None to use basename of the path
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110 @param upload_jid(jid.JID, None): upload capable entity jid,
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111 or None to use autodetected, if possible
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112 @param options(dict): option to use for the upload, may be:
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113 - ignore_tls_errors(bool): True to ignore SSL/TLS certificate verification
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114 used only if HTTPS transport is needed
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115 - progress_id(str): id to use for progression
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116 if not specified, one will be generated
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117 @param profile: %(doc_profile)s
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118 @return (tuple[unicode,D(unicode)]): progress_id and a Deferred which fire
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119 download URL when upload is finished
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120 """
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121 if options is None:
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122 options = {}
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123 if not os.path.isfile(filepath):
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124 raise exceptions.DataError("The given path doesn't link to a file")
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125 for method_name, available_cb, upload_cb, priority in self._upload_callbacks:
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126 try:
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127 upload_jid = await available_cb(client, upload_jid)
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128 except exceptions.NotFound:
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129 continue # no entity managing this extension found
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130
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131 log.info(
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132 "{name} method will be used to upload the file".format(name=method_name)
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133 )
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134 progress_id, download_d = await upload_cb(
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135 client, filepath, filename, upload_jid, options
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136 )
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137 return progress_id, download_d
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138
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139 raise exceptions.NotFound("Can't find any method to upload a file")
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140
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141 def register(self, method_name, available_cb, upload_cb, priority=0):
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142 """Register a fileUploading method
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143
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144 @param method_name(unicode): short name for the method, must be unique
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145 @param available_cb(callable): method to call to check if this method is usable
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146 the callback must take two arguments: upload_jid (can be None) and profile
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147 the callback must return the first entity found (being upload_jid or one of its
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148 components)
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149 exceptions.NotFound must be raised if no entity has been found
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150 @param upload_cb(callable): method to upload a file
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151 must have the same signature as [fileUpload]
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152 must return a tuple with progress_id and a Deferred which fire download URL
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153 when upload is finished
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154 @param priority(int): pririoty of this method, the higher available will be used
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155 """
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156 assert method_name
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157 for data in self._upload_callbacks:
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158 if method_name == data[0]:
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159 raise exceptions.ConflictError(
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160 "A method with this name is already registered"
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161 )
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162 self._upload_callbacks.append((method_name, available_cb, upload_cb, priority))
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163 self._upload_callbacks.sort(key=lambda data: data[3], reverse=True)
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164
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165 def unregister(self, method_name):
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166 for idx, data in enumerate(self._upload_callbacks):
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167 if data[0] == method_name:
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168 del [idx]
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169 return
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170 raise exceptions.NotFound("The name to unregister doesn't exist")