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annotate sat/plugins/plugin_misc_upload.py @ 3221:b1c90eedbc12

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core (xmpp): fixed workflow with post_xml_treatments in sendMessage: post_xml_treatments was incorrectly added to workflow using chainDeferred (which only add the callback, so post_xml_treatments own callbacks were not waited). As a result, plugins callback could not be waited as expected before a message was sent. This patch fixes it by not using chainDeferred anymore.
author Goffi <goffi@goffi.org>
date Sun, 22 Mar 2020 13:59:19 +0100
parents f2bb57348587
children 9057713ab124
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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) 2009-2020 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_MAIN: "UploadPlugin",
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39 C.PI_HANDLER: "no",
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40 C.PI_DESCRIPTION: _("""File upload management"""),
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41 }
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42
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43
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44 UPLOADING = D_("Please select a file to upload")
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45 UPLOADING_TITLE = D_("File upload")
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47
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48 class UploadPlugin(object):
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49 # TODO: plugin unload
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50
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51 def __init__(self, host):
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52 log.info(_("plugin Upload initialization"))
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53 self.host = host
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54 host.bridge.addMethod(
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55 "fileUpload",
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56 ".plugin",
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57 in_sign="sssss",
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58 out_sign="a{ss}",
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59 method=self._fileUpload,
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60 async_=True,
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61 )
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62 self._upload_callbacks = []
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63
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64 def _fileUpload(
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65 self, filepath, filename, upload_jid_s="", options='', profile=C.PROF_KEY_NONE
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66 ):
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67 client = self.host.getClient(profile)
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68 upload_jid = jid.JID(upload_jid_s) if upload_jid_s else None
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69 options = data_format.deserialise(options)
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70
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71 return defer.ensureDeferred(self.fileUpload(
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72 client, filepath, filename or None, upload_jid, options
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73 ))
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74
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75 async def fileUpload(self, client, filepath, filename, upload_jid, options):
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76 """Send a file using best available method
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77
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78 parameters are the same as for [upload]
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79 @return (dict): action dictionary, with progress id in case of success, else xmlui
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80 message
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81 """
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82
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83 try:
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84 progress_id, __ = await self.upload(
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85 client, filepath, filename, upload_jid, options)
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86 except Exception as e:
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87 if (isinstance(e, jabber_error.StanzaError)
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88 and e.condition == 'not-acceptable'):
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89 reason = e.text
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90 else:
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91 reason = str(e)
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92 msg = D_("Can't upload file: {reason}").format(reason=reason)
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93 log.warning(msg)
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94 return {
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95 "xmlui": xml_tools.note(
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96 msg, D_("Can't upload file"), C.XMLUI_DATA_LVL_WARNING
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97 ).toXml()
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98 }
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99 else:
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100 return {"progress": progress_id}
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101
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102 async def upload(self, client, filepath, filename=None, upload_jid=None,
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103 options=None):
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104 """Send a file using best available method
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105
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106 @param filepath(str): absolute path to the file
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107 @param filename(None, unicode): name to use for the upload
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108 None to use basename of the path
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109 @param upload_jid(jid.JID, None): upload capable entity jid,
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110 or None to use autodetected, if possible
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111 @param options(dict): option to use for the upload, may be:
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112 - ignore_tls_errors(bool): True to ignore SSL/TLS certificate verification
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113 used only if HTTPS transport is needed
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114 - progress_id(str): id to use for progression
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115 if not specified, one will be generated
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116 @param profile: %(doc_profile)s
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117 @return (tuple[unicode,D(unicode)]): progress_id and a Deferred which fire
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118 download URL when upload is finished
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119 """
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120 if options is None:
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121 options = {}
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122 if not os.path.isfile(filepath):
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123 raise exceptions.DataError("The given path doesn't link to a file")
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124 for method_name, available_cb, upload_cb, priority in self._upload_callbacks:
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125 try:
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126 upload_jid = await available_cb(client, upload_jid)
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127 except exceptions.NotFound:
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128 continue # no entity managing this extension found
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129
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130 log.info(
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131 "{name} method will be used to upload the file".format(name=method_name)
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132 )
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133 progress_id, download_d = await upload_cb(
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134 client, filepath, filename, upload_jid, options
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135 )
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136 return progress_id, download_d
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137
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138 raise exceptions.NotFound("Can't find any method to upload a file")
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139
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140 def register(self, method_name, available_cb, upload_cb, priority=0):
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141 """Register a fileUploading method
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142
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143 @param method_name(unicode): short name for the method, must be unique
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144 @param available_cb(callable): method to call to check if this method is usable
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145 the callback must take two arguments: upload_jid (can be None) and profile
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146 the callback must return the first entity found (being upload_jid or one of its
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147 components)
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148 exceptions.NotFound must be raised if no entity has been found
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149 @param upload_cb(callable): method to upload a file
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150 must have the same signature as [fileUpload]
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151 must return a tuple with progress_id and a Deferred which fire download URL
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152 when upload is finished
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153 @param priority(int): pririoty of this method, the higher available will be used
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154 """
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155 assert method_name
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156 for data in self._upload_callbacks:
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157 if method_name == data[0]:
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158 raise exceptions.ConflictError(
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159 "A method with this name is already registered"
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160 )
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161 self._upload_callbacks.append((method_name, available_cb, upload_cb, priority))
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162 self._upload_callbacks.sort(key=lambda data: data[3], reverse=True)
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163
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164 def unregister(self, method_name):
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165 for idx, data in enumerate(self._upload_callbacks):
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166 if data[0] == method_name:
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167 del [idx]
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168 return
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169 raise exceptions.NotFound("The name to unregister doesn't exist")