Mercurial > libervia-backend
annotate src/plugins/plugin_xep_0055.py @ 853:c2f6ada7858f
core (sqlite): automatic database update:
- new Updater class check database consistency (by calculating a hash on the .schema), and updates base if necessary
- database now has a version (1 for current, 0 will be for 0.3's database), for each change this version will be increased
- creation statements and update statements are in the form of dict of dict with tuples. There is a help text at the top of the module to explain how it works
- if we are on a development version, the updater try to update the database automaticaly (without deleting table or columns). The Updater.generateUpdateData method can be used to ease the creation of update data (i.e. the dictionary at the top, see the one for the key 1 for an example).
- if there is an inconsistency, an exception is raised, and a message indicate the SQL statements that should fix the situation.
- well... this is rather complicated, a KISS method would maybe have been better. The future will say if we need to simplify it :-/
- new DatabaseError exception
author | Goffi <goffi@goffi.org> |
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date | Sun, 23 Feb 2014 23:30:32 +0100 |
parents | 1fe00f0c9a91 |
children | 40ad5a344332 |
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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 Jabber Search (xep-0055) |
811 | 5 # Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014 Jérôme Poisson (goffi@goffi.org) |
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6 |
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7 # This program is free software: you can redistribute it and/or modify |
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8 # it under the terms of the GNU Affero General Public License as published by |
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9 # the Free Software Foundation, either version 3 of the License, or |
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10 # (at your option) any later version. |
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11 |
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12 # This program is distributed in the hope that it will be useful, |
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 # GNU Affero General Public License for more details. |
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16 |
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17 # You should have received a copy of the GNU Affero General Public License |
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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19 |
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20 from sat.core.i18n import _, D_ |
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21 from logging import debug, info, warning, error |
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22 from twisted.words.protocols.jabber.xmlstream import IQ |
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23 from twisted.words.protocols.jabber import jid |
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24 from wokkel import data_form |
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25 from sat.core.exceptions import DataError |
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26 from sat.memory.memory import Sessions |
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27 from sat.tools import xml_tools |
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28 |
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29 NS_SEARCH = 'jabber:iq:search' |
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30 |
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31 PLUGIN_INFO = { |
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32 "name": "Jabber Search", |
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33 "import_name": "XEP-0055", |
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34 "type": "XEP", |
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35 "protocols": ["XEP-0055"], |
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36 "main": "XEP_0055", |
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37 "handler": "no", |
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38 "description": _("""Implementation of Jabber Search""") |
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39 } |
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40 |
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41 |
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42 class XEP_0055(object): |
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43 |
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44 def __init__(self, host): |
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45 info(_("Jabber search plugin initialization")) |
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46 self.host = host |
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47 host.bridge.addMethod("getSearchUI", ".plugin", in_sign='ss', out_sign='s', |
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48 method=self._getSearchUI, |
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49 async=True) |
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50 host.bridge.addMethod("searchRequest", ".plugin", in_sign='sa{ss}s', out_sign='s', |
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51 method=self._searchRequest, |
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52 async=True) |
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53 self._sessions = Sessions() |
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54 self.__menu_cb_id = host.registerCallback(self._menuCb, with_data=True) |
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55 self.__search_request_id = host.registerCallback(self._xmluiSearchRequest, with_data=True) |
809 | 56 host.importMenu((D_("Communication"), D_("Search directory")), self._searchMenu, security_limit=1, help_string=D_("Search use directory")) |
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57 |
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58 def _menuCb(self, data, profile): |
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59 entity = jid.JID(data[xml_tools.SAT_FORM_PREFIX+'jid']) |
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60 d = self.getSearchUI(entity, profile) |
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61 def gotXMLUI(xmlui): |
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62 session_id, session_data = self._sessions.newSession(profile=profile) |
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63 session_data['jid'] = entity |
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64 xmlui.session_id = session_id # we need to keep track of the session |
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65 xmlui.submit_id = self.__search_request_id |
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66 return {'xmlui': xmlui.toXml()} |
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67 d.addCallback(gotXMLUI) |
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68 return d |
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69 |
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70 |
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71 def _searchMenu(self, menu_data, profile): |
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72 """ First XMLUI activated by menu: ask for target jid |
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73 @param profile: %(doc_profile)s |
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74 |
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75 """ |
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76 form_ui = xml_tools.XMLUI("form", title=_("Search directory"), submit_id=self.__menu_cb_id) |
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77 form_ui.addText(_("Please enter the search jid"), 'instructions') |
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78 form_ui.changeContainer("pairs") |
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79 form_ui.addLabel("jid") |
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80 form_ui.addString("jid", value="users.jabberfr.org") # TODO: replace users.jabberfr.org by any XEP-0055 compatible service discovered on current server |
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81 return {'xmlui': form_ui.toXml()} |
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82 |
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83 def _getSearchUI(self, to_jid_s, profile_key): |
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84 d = self.getSearchUI(jid.JID(to_jid_s), profile_key) |
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85 d.addCallback(lambda xmlui: xmlui.toXml()) |
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86 return d |
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87 |
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88 def getSearchUI(self, to_jid, profile_key): |
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89 """ Ask for a search interface |
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90 @param to_jid: XEP-0055 compliant search entity |
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91 @param profile_key: %(doc_profile_key)s |
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92 @return: XMLUI search interface """ |
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93 client = self.host.getClient(profile_key) |
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94 fields_request = IQ(client.xmlstream, 'get') |
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95 fields_request["from"] = client.jid.full() |
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96 fields_request["to"] = to_jid.full() |
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97 fields_request.addElement('query', NS_SEARCH) |
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98 d = fields_request.send(to_jid.full()) |
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99 d.addCallbacks(self._fieldsOk, self._fieldsErr, callbackArgs=[client.profile], errbackArgs=[client.profile]) |
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100 return d |
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101 |
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102 def _fieldsOk(self, answer, profile): |
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103 """got fields available""" |
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104 try: |
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105 query_elts = answer.elements('jabber:iq:search', 'query').next() |
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106 except StopIteration: |
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107 info(_("No query element found")) |
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108 raise DataError # FIXME: StanzaError is probably more appropriate, check the RFC |
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109 try: |
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110 form_elt = query_elts.elements(data_form.NS_X_DATA, 'x').next() |
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111 except StopIteration: |
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112 info(_("No data form found")) |
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113 raise NotImplementedError("Only search through data form is implemented so far") |
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114 parsed_form = data_form.Form.fromElement(form_elt) |
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115 return xml_tools.dataForm2XMLUI(parsed_form, "") |
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116 |
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117 def _fieldsErr(self, failure, profile): |
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118 """ Called when something is wrong with fields request """ |
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119 info(_("Fields request failure: %s") % str(failure.value)) |
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120 return failure |
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121 |
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122 def _xmluiSearchRequest(self, raw_data, profile): |
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123 try: |
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124 session_data = self._sessions.profileGet(raw_data["session_id"], profile) |
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125 except KeyError: |
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126 warning ("session id doesn't exist, session has probably expired") |
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127 # TODO: send error dialog |
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128 return defer.succeed({}) |
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129 |
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130 data = xml_tools.XMLUIResult2DataFormResult(raw_data) |
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131 entity =session_data['jid'] |
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132 d = self.searchRequest(entity, data, profile) |
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133 d.addCallback(lambda xmlui: {'xmlui':xmlui.toXml()}) |
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134 del self._sessions[raw_data["session_id"]] |
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135 return d |
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136 |
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137 def _searchRequest(self, to_jid_s, search_dict, profile_key): |
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138 d = self.searchRequest(jid.JID(to_jid_s), search_dict, profile_key) |
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139 d.addCallback(lambda xmlui: xmlui.toXml()) |
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140 return d |
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141 |
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142 def searchRequest(self, to_jid, search_dict, profile_key): |
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143 """ Actually do a search, according to filled data |
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144 @param to_jid: XEP-0055 compliant search entity |
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145 @param search_dict: filled data, corresponding to the form obtained in getSearchUI |
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146 @param profile_key: %(doc_profile_key)s |
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147 @return: XMLUI search result """ |
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148 client = self.host.getClient(profile_key) |
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149 search_request = IQ(client.xmlstream, 'set') |
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150 search_request["from"] = client.jid.full() |
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151 search_request["to"] = to_jid.full() |
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152 query_elt = search_request.addElement('query', NS_SEARCH) |
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153 x_form = data_form.Form('submit', formNamespace = NS_SEARCH) |
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154 x_form.makeFields(search_dict) |
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155 query_elt.addChild(x_form.toElement()) |
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156 d = search_request.send(to_jid.full()) |
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157 d.addCallbacks(self._searchOk, self._searchErr, callbackArgs=[client.profile], errbackArgs=[client.profile]) |
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158 return d |
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159 |
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160 def _searchOk(self, answer, profile): |
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161 """got search available""" |
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162 try: |
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163 query_elts = answer.elements('jabber:iq:search', 'query').next() |
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164 except StopIteration: |
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165 info(_("No query element found")) |
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166 raise DataError # FIXME: StanzaError is probably more appropriate, check the RFC |
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167 try: |
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168 form_elt = query_elts.elements(data_form.NS_X_DATA, 'x').next() |
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169 except StopIteration: |
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170 info(_("No data form found")) |
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171 raise NotImplementedError("Only search through data form is implemented so far") |
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172 return xml_tools.dataFormResult2XMLUI(form_elt) |
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173 |
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174 def _searchErr(self, failure, profile): |
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175 """ Called when something is wrong with search request """ |
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176 info(_("Search request failure: %s") % str(failure.value)) |
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177 return failure |