Mercurial > libervia-backend
annotate src/plugins/plugin_xep_0363.py @ 1727:68e498b3367e
reverted revision 2ebe66a96d05
author | souliane <souliane@mailoo.org> |
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date | Tue, 08 Dec 2015 16:55:54 +0100 |
parents | d470affbe65c |
children | d17772b0fe22 |
rev | line source |
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1 #!/usr/bin/python |
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2 # -*- coding: utf-8 -*- |
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3 |
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4 # SAT plugin for Jingle File Transfer (XEP-0363) |
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5 # Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015 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 _ |
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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 log = getLogger(__name__) |
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24 from sat.core import exceptions |
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25 from wokkel import disco, iwokkel |
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26 from zope.interface import implements |
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27 from twisted.words.protocols.jabber import jid |
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28 from twisted.words.protocols.jabber.xmlstream import XMPPHandler |
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29 from twisted.internet import reactor |
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30 from twisted.internet import defer |
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31 from twisted.internet import ssl |
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32 from twisted.internet.interfaces import IOpenSSLClientConnectionCreator |
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33 from twisted.web import client as http_client |
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34 from twisted.web import http_headers |
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35 from twisted.web import iweb |
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36 from twisted.python import failure |
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37 from collections import namedtuple |
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38 from zope.interface import implementer |
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39 from OpenSSL import SSL |
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40 import os.path |
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41 import mimetypes |
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42 |
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43 |
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44 PLUGIN_INFO = { |
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45 "name": "HTTP File Upload", |
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46 "import_name": "XEP-0363", |
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47 "type": "XEP", |
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48 "protocols": ["XEP-0363"], |
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49 "dependencies": ["FILE", "UPLOAD"], |
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50 "main": "XEP_0363", |
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51 "handler": "yes", |
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52 "description": _("""Implementation of HTTP File Upload""") |
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53 } |
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54 |
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55 NS_HTTP_UPLOAD = 'urn:xmpp:http:upload' |
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56 |
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57 |
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58 Slot = namedtuple('Slot', ['put', 'get']) |
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59 |
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60 |
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61 @implementer(IOpenSSLClientConnectionCreator) |
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62 class NoCheckConnectionCreator(object): |
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63 |
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64 def __init__(self, hostname, ctx): |
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65 self._ctx = ctx |
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66 |
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67 def clientConnectionForTLS(self, tlsProtocol): |
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68 context = self._ctx |
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69 connection = SSL.Connection(context, None) |
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70 connection.set_app_data(tlsProtocol) |
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71 return connection |
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72 |
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73 |
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74 @implementer(iweb.IPolicyForHTTPS) |
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75 class NoCheckContextFactory(ssl.ClientContextFactory): |
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76 """Context factory which doesn't do TLS certificate check |
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77 |
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78 /!\\ it's obvisously a security flaw to use this class, |
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79 and it should be used only wiht explicite agreement from the end used |
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80 """ |
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81 |
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82 def creatorForNetloc(self, hostname, port): |
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83 log.warning(u"TLS check disabled for {host} on port {port}".format(host=hostname, port=port)) |
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84 certificateOptions = ssl.CertificateOptions(trustRoot=None) |
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85 return NoCheckConnectionCreator(hostname, certificateOptions.getContext()) |
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86 |
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87 |
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88 class XEP_0363(object): |
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89 |
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90 def __init__(self, host): |
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91 log.info(_("plugin HTTP File Upload initialization")) |
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92 self.host = host |
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93 host.bridge.addMethod("fileHTTPUpload", ".plugin", in_sign='sssbs', out_sign='', method=self._fileHTTPUpload) |
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94 host.bridge.addMethod("fileHTTPUploadGetSlot", ".plugin", in_sign='sisss', out_sign='(ss)', method=self._getSlot, async=True) |
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95 host.plugins['UPLOAD'].register(u"HTTP Upload", self.getHTTPUploadEntity, self.fileHTTPUpload) |
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96 |
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97 def getHandler(self, profile): |
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98 return XEP_0363_handler() |
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99 |
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100 @defer.inlineCallbacks |
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101 def getHTTPUploadEntity(self, upload_jid=None, profile=C.PROF_KEY_NONE): |
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102 """Get HTTP upload capable entity |
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103 |
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104 upload_jid is checked, then its components |
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105 @param upload_jid(None, jid.JID): entity to check |
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106 @return(D(jid.JID)): first HTTP upload capable entity |
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107 @raise exceptions.NotFound: no entity found |
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108 """ |
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109 client = self.host.getClient(profile) |
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110 try: |
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111 entity = client.http_upload_service |
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112 except AttributeError: |
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113 found_entities = yield self.host.findFeaturesSet((NS_HTTP_UPLOAD,), profile=client.profile) |
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114 try: |
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115 entity = client.http_upload_service = iter(found_entities).next() |
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116 except StopIteration: |
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117 entity = client.http_upload_service = None |
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118 |
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119 if entity is None: |
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120 raise failure.Failure(exceptions.NotFound(u'No HTTP upload entity found')) |
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121 |
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122 defer.returnValue(entity) |
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123 |
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124 def _fileHTTPUpload(self, filepath, filename='', upload_jid='', ignore_tls_errors=False, profile=C.PROF_KEY_NONE): |
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125 assert os.path.isabs(filepath) and os.path.isfile(filepath) |
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126 return self.fileHTTPUpload(filepath, filename or None, jid.JID(upload_jid) if upload_jid else None, {'ignore-tls-errors': ignore_tls_errors}, profile) |
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127 |
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128 def fileHTTPUpload(self, filepath, filename=None, upload_jid=None, options=None, profile=C.PROF_KEY_NONE): |
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129 """upload a file through HTTP |
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130 |
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131 @param filepath(str): absolute path of the file |
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132 @param filename(None, unicode): name to use for the upload |
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133 None to use basename of the path |
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134 @param upload_jid(jid.JID, None): upload capable entity jid, |
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135 or None to use autodetected, if possible |
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136 @param options(dict): options where key can be: |
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137 - ignore_tls_errors(bool): if True, SSL certificate will not be checked |
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138 @param profile: %(doc_profile)s |
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139 @return (D(unicode)): progress id |
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140 """ |
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141 if options is None: |
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142 options = {} |
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143 ignore_tls_errors = options.get('ignore-tls-errors', False) |
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144 client = self.host.getClient(profile) |
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145 filename = filename or os.path.basename(filepath) |
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146 size = os.path.getsize(filepath) |
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147 progress_id_d = defer.Deferred() |
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148 d = self.getSlot(client, filename, size, upload_jid=upload_jid) |
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149 d.addCallbacks(self._getSlotCb, self._getSlotEb, (client, progress_id_d, filepath, size, ignore_tls_errors), None, (client, progress_id_d)) |
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150 return progress_id_d |
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151 |
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152 def _getSlotEb(self, fail, client, progress_id_d): |
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153 """an error happened while trying to get slot""" |
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154 log.warning(u"Can't get upload slot: {reason}".format(reason=fail.value)) |
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155 progress_id_d.errback(fail) |
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156 |
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157 def _getSlotCb(self, slot, client, progress_id_d, path, size, ignore_tls_errors=False): |
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158 """Called when slot is received, try to do the upload |
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159 |
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160 @param slot(Slot): slot instance with the get and put urls |
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161 @param progress_id_d(defer.Deferred): Deferred to call when progress_id is known |
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162 @param path(str): path to the file to upload |
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163 @param size(int): size of the file to upload |
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164 @param ignore_tls_errors(bool): ignore TLS certificate is True |
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165 @return (tuple |
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166 """ |
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167 log.debug(u"Got upload slot: {}".format(slot)) |
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168 sat_file = self.host.plugins['FILE'].File(self.host, path, size=size, auto_end_signals=False, profile=client.profile) |
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169 progress_id_d.callback(sat_file.uid) |
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170 file_producer = http_client.FileBodyProducer(sat_file) |
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171 if ignore_tls_errors: |
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172 agent = http_client.Agent(reactor, NoCheckContextFactory()) |
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173 else: |
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174 agent = http_client.Agent(reactor) |
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175 d = agent.request('PUT', slot.put.encode('utf-8'), http_headers.Headers({'User-Agent': [C.APP_NAME.encode('utf-8')]}), file_producer) |
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176 d.addCallbacks(self._uploadCb, self._uploadEb, (sat_file, slot), None, (sat_file,)) |
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177 return d |
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178 |
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179 def _uploadCb(self, dummy, sat_file, slot): |
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180 """Called once file is successfully uploaded |
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181 |
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182 @param sat_file(SatFile): file used for the upload |
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183 should be closed, be is needed to send the progressFinished signal |
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184 @param slot(Slot): put/get urls |
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185 """ |
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186 log.info(u"HTTP upload finished") |
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187 sat_file.progressFinished({'url': slot.get}) |
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188 |
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189 def _uploadEb(self, fail, sat_file): |
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190 """Called on unsuccessful upload |
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191 |
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192 @param sat_file(SatFile): file used for the upload |
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193 should be closed, be is needed to send the progressError signal |
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194 """ |
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195 try: |
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196 wrapped_fail = fail.value.reasons[0] |
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197 except (AttributeError, IndexError): |
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198 sat_file.progressError(unicode(fail)) |
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199 raise fail |
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200 else: |
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201 if wrapped_fail.check(SSL.Error): |
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202 msg = u"TLS validation error, can't connect to HTTPS server" |
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203 log.warning(msg + ": " + unicode(wrapped_fail.value)) |
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204 sat_file.progressError(msg) |
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205 |
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206 def _gotSlot(self, iq_elt, client): |
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207 """Slot have been received |
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208 |
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209 This method convert the iq_elt result to a Slot instance |
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210 @param iq_elt(domish.Element): <IQ/> result as specified in XEP-0363 |
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211 """ |
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212 try: |
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213 slot_elt = iq_elt.elements(NS_HTTP_UPLOAD, 'slot').next() |
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214 put_url = unicode(slot_elt.elements(NS_HTTP_UPLOAD, 'put').next()) |
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215 get_url = unicode(slot_elt.elements(NS_HTTP_UPLOAD, 'get').next()) |
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216 except StopIteration: |
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217 raise exceptions.DataError(u"Incorrect stanza received from server") |
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218 slot = Slot(put=put_url, get=get_url) |
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219 return slot |
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220 |
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221 def _getSlot(self, filename, size, content_type, upload_jid, profile_key=C.PROF_KEY_NONE): |
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222 """Get a upload slot |
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223 |
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224 This method can be used when uploading is done by the frontend |
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225 @param filename(unicode): name of the file to upload |
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226 @param size(int): size of the file (must be non null) |
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227 @param upload_jid(jid.JID(), None, ''): HTTP upload capable entity |
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228 @param content_type(unicode, None): MIME type of the content |
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229 empty string or None to guess automatically |
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230 """ |
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231 filename.replace('/', '_') |
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232 client = self.host.getClient(profile_key) |
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233 return self.getSlot(client, filename, size, content_type or None, upload_jid or None) |
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234 |
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235 def getSlot(self, client, filename, size, content_type=None, upload_jid=None): |
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236 """Get a slot (i.e. download/upload links) |
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237 |
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238 @param filename(unicode): name to use for the upload |
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239 @param size(int): size of the file to upload (must be >0) |
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240 @param content_type(None, unicode): MIME type of the content |
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241 None to autodetect |
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242 @param upload_jid(jid.JID, None): HTTP upload capable upload_jid |
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243 or None to use the server component (if any) |
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244 @param client: %(doc_client)s |
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245 @return (Slot): the upload (put) and download (get) URLs |
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246 @raise exceptions.NotFound: no HTTP upload capable upload_jid has been found |
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247 """ |
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248 assert filename and size |
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249 if content_type is None: |
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250 # TODO: manage python magic for file guessing (in a dedicated plugin ?) |
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251 content_type = mimetypes.guess_type(filename, strict=False)[0] |
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252 |
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253 if upload_jid is None: |
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254 try: |
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255 upload_jid = client.http_upload_service |
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256 except AttributeError: |
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257 d = self.getHTTPUploadEntity(profile=client.profile) |
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258 d.addCallback(lambda found_entity: self.getSlot(client, filename, size, content_type, found_entity)) |
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259 return d |
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260 else: |
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261 if upload_jid is None: |
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262 raise failure.Failure(exceptions.NotFound(u'No HTTP upload entity found')) |
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263 |
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264 iq_elt = client.IQ('get') |
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265 iq_elt['to'] = upload_jid.full() |
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266 request_elt = iq_elt.addElement((NS_HTTP_UPLOAD, 'request')) |
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267 request_elt.addElement('filename', content=filename) |
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268 request_elt.addElement('size', content=unicode(size)) |
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269 if content_type is not None: |
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270 request_elt.addElement('content-type', content=content_type) |
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271 |
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272 d = iq_elt.send() |
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273 d.addCallback(self._gotSlot, client) |
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274 |
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275 return d |
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276 |
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277 |
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278 class XEP_0363_handler(XMPPHandler): |
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279 implements(iwokkel.IDisco) |
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280 |
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281 def getDiscoInfo(self, requestor, target, nodeIdentifier=''): |
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282 return [disco.DiscoFeature(NS_HTTP_UPLOAD)] |
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283 |
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284 def getDiscoItems(self, requestor, target, nodeIdentifier=''): |
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285 return [] |