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annotate src/plugins/plugin_exp_pubsub_schema.py @ 2448:637ac234424f

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plugin merge requests: first draft: this plugin allows to handle merge requests (i.e. requests to include a contribution in a project) by extendings tickets management. This plugin is made to be generic, independent from end user tools and from the kind of project where the contribution is requested to be merged.
author Goffi <goffi@goffi.org>
date Thu, 30 Nov 2017 20:44:25 +0100
parents 6c39f30444a0
children 544c4d2fec45
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/env python2
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2 # -*- coding: utf-8 -*-
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3
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4 # SAT plugin for Pubsub Schemas
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5 # Copyright (C) 2009-2017 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 import exceptions
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22 from sat.core.constants import Const as C
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23 from sat.tools import xml_tools
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24 from twisted.words.protocols.jabber import jid
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25 from twisted.words.protocols.jabber.xmlstream import XMPPHandler
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26 from twisted.internet import defer
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27 from sat.core.log import getLogger
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28 log = getLogger(__name__)
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29 from wokkel import disco, iwokkel
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30 from wokkel import data_form
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31 from wokkel import generic
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32 from zope.interface import implements
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33 from collections import Iterable
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34 import copy
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35 import itertools
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36
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37 NS_SCHEMA = 'https://salut-a-toi/protocol/schema:0'
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38
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39 PLUGIN_INFO = {
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40 C.PI_NAME: "PubSub Schema",
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41 C.PI_IMPORT_NAME: "PUBSUB_SCHEMA",
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42 C.PI_TYPE: "EXP",
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43 C.PI_PROTOCOLS: [],
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44 C.PI_DEPENDENCIES: ["XEP-0060"],
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45 C.PI_MAIN: "PubsubSchema",
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46 C.PI_HANDLER: "yes",
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47 C.PI_DESCRIPTION: _("""Handle Pubsub data schemas""")
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48 }
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49
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51 class PubsubSchema(object):
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52
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53 def __init__(self, host):
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54 log.info(_(u"PubSub Schema initialization"))
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55 self.host = host
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56 self._p = self.host.plugins["XEP-0060"]
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57 host.bridge.addMethod("psSchemaGet", ".plugin",
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58 in_sign='sss', out_sign='s',
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59 method=self._getSchema,
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60 async=True
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61 )
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62 host.bridge.addMethod("psSchemaSet", ".plugin",
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63 in_sign='ssss', out_sign='',
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64 method=self._setSchema,
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65 async=True
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66 )
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67 host.bridge.addMethod("psSchemaUIGet", ".plugin",
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68 in_sign='sss', out_sign='s',
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69 method=self._getUISchema,
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70 async=True
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71 )
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72 host.bridge.addMethod("psItemsFormGet", ".plugin",
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73 in_sign='ssssiassa{ss}s', out_sign='(asa{ss})',
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74 method=self._getDataFormItems,
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75 async=True)
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76 host.bridge.addMethod("psItemFormSend", ".plugin",
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77 in_sign='ssa{sas}ssa{ss}s', out_sign='s',
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78 method=self._sendDataFormItem,
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79 async=True)
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80
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81 def getHandler(self, client):
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82 return SchemaHandler()
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83
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84 def _getSchemaBridgeCb(self, schema_elt):
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85 if schema_elt is None:
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86 return u''
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87 return schema_elt.toXml()
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88
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89 def _getSchema(self, service, nodeIdentifier, profile_key=C.PROF_KEY_NONE):
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90 client = self.host.getClient(profile_key)
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91 service = None if not service else jid.JID(service)
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92 d = self.getSchema(client, service, nodeIdentifier)
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93 d.addCallback(self._getSchemaBridgeCb)
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94 return d
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95
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96 def _getSchemaCb(self, iq_elt):
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97 try:
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98 schema_elt = next(iq_elt.elements(NS_SCHEMA, 'schema'))
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99 except StopIteration:
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100 raise exceptions.DataError('missing <schema> element')
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101 try:
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102 x_elt = next(schema_elt.elements((data_form.NS_X_DATA, 'x')))
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103 except StopIteration:
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104 # there is not schema on this node
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105 return None
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106 return x_elt
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107
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108 def getSchema(self, client, service, nodeIdentifier):
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109 """retrieve PubSub node schema
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110
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111 @param service(jid.JID, None): jid of PubSub service
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112 None to use our PEP
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113 @param nodeIdentifier(unicode): node to get schema from
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114 @return (domish.Element, None): schema (<x> element)
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115 None if not schema has been set on this node
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116 """
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117 iq_elt = client.IQ(u'get')
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118 if service is not None:
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119 iq_elt['to'] = service.full()
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120 pubsub_elt = iq_elt.addElement((NS_SCHEMA, 'pubsub'))
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121 schema_elt = pubsub_elt.addElement((NS_SCHEMA, 'schema'))
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122 schema_elt['node'] = nodeIdentifier
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123 d = iq_elt.send()
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124 d.addCallback(self._getSchemaCb)
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125 return d
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126
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127 @defer.inlineCallbacks
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128 def getSchemaForm(self, client, service, nodeIdentifier, schema=None, form_type='form', copy_form=True):
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129 """get data form from node's schema
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130
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131 @param service(None, jid.JID): PubSub service
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132 @param nodeIdentifier(unicode): node
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133 @param schema(domish.Element, data_form.Form, None): node schema
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134 if domish.Element, will be converted to data form
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135 if data_form.Form it will be returned without modification
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136 if None, it will be retrieved from node (imply one additional XMPP request)
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137 @param form_type(unicode): type of the form
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138 @param copy_form(bool): if True and if schema is already a data_form.Form, will deep copy it before returning
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parents: 2381
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139 needed when the form is reused and it will be modified (e.g. in sendDataFormItem)
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140 @return(data_form.Form): data form
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141 the form should not be modified if copy_form is not set
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142 """
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143 if schema is None:
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144 log.debug(_(u"unspecified schema, we need to request it"))
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145 schema = yield self.getSchema(client, service, nodeIdentifier)
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
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diff changeset
146 if schema is None:
41c7717b52cd plugin PubSub Schema: schema helper methods:
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parents: 2350
diff changeset
147 raise exceptions.DataError(_(u"no schema specified, and this node has no schema either, we can't construct the data form"))
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148 elif isinstance(schema, data_form.Form):
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149 if copy_form:
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parents: 2381
diff changeset
150 schema = copy.deepcopy(schema)
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151 defer.returnValue(schema)
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152
41c7717b52cd plugin PubSub Schema: schema helper methods:
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153 try:
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parents: 2350
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154 form = data_form.Form.fromElement(schema)
41c7717b52cd plugin PubSub Schema: schema helper methods:
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parents: 2350
diff changeset
155 except data_form.Error as e:
41c7717b52cd plugin PubSub Schema: schema helper methods:
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parents: 2350
diff changeset
156 raise exceptions.DataError(_(u"Invalid Schema: {msg}").format(
41c7717b52cd plugin PubSub Schema: schema helper methods:
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parents: 2350
diff changeset
157 msg = e))
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
158 form.formType = form_type
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
159 defer.returnValue(form)
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160
41c7717b52cd plugin PubSub Schema: schema helper methods:
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161 def schema2XMLUI(self, schema_elt):
41c7717b52cd plugin PubSub Schema: schema helper methods:
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162 form = data_form.Form.fromElement(schema_elt)
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parents: 2350
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163 xmlui = xml_tools.dataForm2XMLUI(form, '')
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164 return xmlui
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165
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
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166 def _getUISchema(self, service, nodeIdentifier, profile_key=C.PROF_KEY_NONE):
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167 client = self.host.getClient(profile_key)
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168 service = None if not service else jid.JID(service)
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169 d = self.getUISchema(client, service, nodeIdentifier)
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170 d.addCallback(lambda xmlui: xmlui.toXml())
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171 return d
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172
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173 def getUISchema(self, client, service, nodeIdentifier):
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174 d = self.getSchema(client, service, nodeIdentifier)
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175 d.addCallback(self.schema2XMLUI)
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176 return d
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177
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178 def _setSchema(self, service, nodeIdentifier, schema, profile_key=C.PROF_KEY_NONE):
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parents:
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179 client = self.host.getClient(profile_key)
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180 service = None if not service else jid.JID(service)
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181 schema = generic.parseXml(schema.encode('utf-8'))
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182 return self.setSchema(client, service, nodeIdentifier, schema)
388226e9c3ff plugin schema: PubSub node schema, first draft
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183
388226e9c3ff plugin schema: PubSub node schema, first draft
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parents:
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184 def setSchema(self, client, service, nodeIdentifier, schema):
388226e9c3ff plugin schema: PubSub node schema, first draft
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parents:
diff changeset
185 """set or replace PubSub node schema
388226e9c3ff plugin schema: PubSub node schema, first draft
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parents:
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186
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187 @param schema(domish.Element, None): schema to set
388226e9c3ff plugin schema: PubSub node schema, first draft
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parents:
diff changeset
188 None if schema need to be removed
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parents:
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189 """
388226e9c3ff plugin schema: PubSub node schema, first draft
Goffi <goffi@goffi.org>
parents:
diff changeset
190 iq_elt = client.IQ()
388226e9c3ff plugin schema: PubSub node schema, first draft
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parents:
diff changeset
191 if service is not None:
388226e9c3ff plugin schema: PubSub node schema, first draft
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parents:
diff changeset
192 iq_elt['to'] = service.full()
388226e9c3ff plugin schema: PubSub node schema, first draft
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parents:
diff changeset
193 pubsub_elt = iq_elt.addElement((NS_SCHEMA, 'pubsub'))
388226e9c3ff plugin schema: PubSub node schema, first draft
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parents:
diff changeset
194 schema_elt = pubsub_elt.addElement((NS_SCHEMA, 'schema'))
388226e9c3ff plugin schema: PubSub node schema, first draft
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parents:
diff changeset
195 schema_elt['node'] = nodeIdentifier
388226e9c3ff plugin schema: PubSub node schema, first draft
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parents:
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196 if schema is not None:
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parents:
diff changeset
197 schema_elt.addChild(schema)
388226e9c3ff plugin schema: PubSub node schema, first draft
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parents:
diff changeset
198 return iq_elt.send()
388226e9c3ff plugin schema: PubSub node schema, first draft
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199
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diff changeset
200 def _getDataFormItems(self, form_ns='', service='', node='', schema='', max_items=10, item_ids=None, sub_id=None, extra_dict=None, profile_key=C.PROF_KEY_NONE):
41c7717b52cd plugin PubSub Schema: schema helper methods:
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parents: 2350
diff changeset
201 client = self.host.getClient(profile_key)
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parents: 2350
diff changeset
202 service = jid.JID(service) if service else None
2398
3ff9d7a7fe71 core (XMLUI): filters can now be used when converting data form to XMLUI:
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203 if not node:
3ff9d7a7fe71 core (XMLUI): filters can now be used when converting data form to XMLUI:
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diff changeset
204 raise exceptions.DataError(_(u'empty node is not allowed'))
2363
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diff changeset
205 if schema:
41c7717b52cd plugin PubSub Schema: schema helper methods:
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diff changeset
206 schema = generic.parseXml(schema.encode('utf-8'))
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
207 else:
41c7717b52cd plugin PubSub Schema: schema helper methods:
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diff changeset
208 schema = None
41c7717b52cd plugin PubSub Schema: schema helper methods:
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parents: 2350
diff changeset
209 max_items = None if max_items == C.NO_LIMIT else max_items
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
210 extra = self._p.parseExtra(extra_dict)
2398
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parents: 2395
diff changeset
211 d = self.getDataFormItems(client, form_ns or None, service, node, schema, max_items or None, item_ids, sub_id or None, extra.rsm_request, extra.extra)
2363
41c7717b52cd plugin PubSub Schema: schema helper methods:
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diff changeset
212 d.addCallback(self._p.serItemsData)
41c7717b52cd plugin PubSub Schema: schema helper methods:
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diff changeset
213 return d
41c7717b52cd plugin PubSub Schema: schema helper methods:
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diff changeset
214
41c7717b52cd plugin PubSub Schema: schema helper methods:
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diff changeset
215 @defer.inlineCallbacks
2398
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diff changeset
216 def getDataFormItems(self, client, form_ns, service, nodeIdentifier, schema=None, max_items=None, item_ids=None, sub_id=None, rsm_request=None, extra=None, filters=None):
2363
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diff changeset
217 """Get items known as being data forms, and convert them to XMLUI
41c7717b52cd plugin PubSub Schema: schema helper methods:
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218
41c7717b52cd plugin PubSub Schema: schema helper methods:
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parents: 2350
diff changeset
219 @param form_ns (unicode, None): namespace of the form
41c7717b52cd plugin PubSub Schema: schema helper methods:
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parents: 2350
diff changeset
220 None to accept everything, even if form has no namespace
2371
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parents: 2363
diff changeset
221 @param schema(domish.Element, data_form.Form, None): schema of the node if known
2363
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parents: 2350
diff changeset
222 if None, it will be retrieved from node
2398
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diff changeset
223 @param filters(dict, None): same as for xml_tools.dataFormResult2XMLUI
2363
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diff changeset
224 other parameters as the same as for [getItems]
41c7717b52cd plugin PubSub Schema: schema helper methods:
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diff changeset
225 @return (list[unicode]): XMLUI of the forms
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
226 if an item is invalid (not corresponding to form_ns or not a data_form)
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
227 it will be skipped
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
228 """
41c7717b52cd plugin PubSub Schema: schema helper methods:
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parents: 2350
diff changeset
229 # we need the initial form to get options of fields when suitable
2386
2e05921df16a plugin schema, core(xmlui): deep copy base form when reused to avoid accidental modification
Goffi <goffi@goffi.org>
parents: 2381
diff changeset
230 schema_form = yield self.getSchemaForm(client, service, nodeIdentifier, schema, form_type='result', copy_form=False)
2363
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
231 items_data = yield self._p.getItems(client, service, nodeIdentifier, max_items, item_ids, sub_id, rsm_request, extra)
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
232 items, metadata = items_data
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
233 items_xmlui = []
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
234 for item_elt in items:
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
235 for x_elt in item_elt.elements((data_form.NS_X_DATA, u'x')):
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
236 form = data_form.Form.fromElement(x_elt)
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
237 if form_ns and form.formNamespace != form_ns:
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
238 continue
2381
72c30e73a9a5 plugin schema: use new "prepend" argument to put "id" widget first.
Goffi <goffi@goffi.org>
parents: 2378
diff changeset
239 xmlui = xml_tools.dataFormResult2XMLUI(
72c30e73a9a5 plugin schema: use new "prepend" argument to put "id" widget first.
Goffi <goffi@goffi.org>
parents: 2378
diff changeset
240 form,
72c30e73a9a5 plugin schema: use new "prepend" argument to put "id" widget first.
Goffi <goffi@goffi.org>
parents: 2378
diff changeset
241 schema_form,
2426
6c39f30444a0 plugin schema: prepend a "publisher" field after "id" in getDataFormItems with published given by PubSub service
Goffi <goffi@goffi.org>
parents: 2421
diff changeset
242 # FIXME: conflicts with schema (i.e. if "id" or "publisher" already exists)
6c39f30444a0 plugin schema: prepend a "publisher" field after "id" in getDataFormItems with published given by PubSub service
Goffi <goffi@goffi.org>
parents: 2421
diff changeset
243 # are not checked
6c39f30444a0 plugin schema: prepend a "publisher" field after "id" in getDataFormItems with published given by PubSub service
Goffi <goffi@goffi.org>
parents: 2421
diff changeset
244 prepend = (('label', 'id'),('text', item_elt['id'], u'id'),
6c39f30444a0 plugin schema: prepend a "publisher" field after "id" in getDataFormItems with published given by PubSub service
Goffi <goffi@goffi.org>
parents: 2421
diff changeset
245 ('label', 'publisher'),('text', item_elt.getAttribute('publisher',''), u'publisher')),
2398
3ff9d7a7fe71 core (XMLUI): filters can now be used when converting data form to XMLUI:
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parents: 2395
diff changeset
246 filters = filters,
2381
72c30e73a9a5 plugin schema: use new "prepend" argument to put "id" widget first.
Goffi <goffi@goffi.org>
parents: 2378
diff changeset
247 )
2363
41c7717b52cd plugin PubSub Schema: schema helper methods:
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diff changeset
248 items_xmlui.append(xmlui)
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
249 break
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
250 defer.returnValue((items_xmlui, metadata))
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
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diff changeset
251
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
252
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
253 def _sendDataFormItem(self, service, nodeIdentifier, values, schema=None, item_id=None, extra=None, profile_key=C.PROF_KEY_NONE):
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
254 client = self.host.getClient(profile_key)
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
255 service = None if not service else jid.JID(service)
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
256 if schema:
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
257 schema = generic.parseXml(schema.encode('utf-8'))
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
258 else:
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
259 schema = None
2378
3704cb959ae8 plugin schema: deserialise is now the last kw argument
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diff changeset
260 d = self.sendDataFormItem(client, service, nodeIdentifier, values, schema, item_id or None, extra, deserialise=True)
2363
41c7717b52cd plugin PubSub Schema: schema helper methods:
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diff changeset
261 d.addCallback(lambda ret: ret or u'')
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
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diff changeset
262 return d
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
263
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
264 @defer.inlineCallbacks
2378
3704cb959ae8 plugin schema: deserialise is now the last kw argument
Goffi <goffi@goffi.org>
parents: 2371
diff changeset
265 def sendDataFormItem(self, client, service, nodeIdentifier, values, schema=None, item_id=None, extra=None, deserialise=False):
2363
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
266 """Publish an item as a dataform when we know that there is a schema
41c7717b52cd plugin PubSub Schema: schema helper methods:
Goffi <goffi@goffi.org>
parents: 2350
diff changeset
267
2420
03da3ef5fb5b plugin tickets: added ticketsSet and ticketsSchemaGet methods:
Goffi <goffi@goffi.org>
parents: 2398
diff changeset
268 @param values(dict[key(unicode), [iterable[object], object]]): values set for the form
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269 if not iterable, will be put in a list
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270 @param schema(domish.Element, data_form.Form, None): data schema
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271 None to retrieve data schema from node (need to do a additional XMPP call)
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272 Schema is needed to construct data form to publish
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273 @param deserialise(bool): if True, data are list of unicode and must be deserialized according to expected type
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274 This is done in this method and not directly in _sendDataFormItem because we need to know the data type
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275 which is in the form, not availablable in _sendDataFormItem
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276 other parameters as the same as for [self._p.sendItem]
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277 @return (unicode): id of the created item
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278 """
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279 form = yield self.getSchemaForm(client, service, nodeIdentifier, schema, form_type='submit')
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280
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281 for name, values_list in values.iteritems():
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282 try:
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283 field = form.fields[name]
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284 except KeyError:
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285 log.warning(_(u"field {name} doesn't exist, ignoring it").format(name=name))
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286 continue
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287 if isinstance(values_list, basestring) or not isinstance(values_list, Iterable):
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288 values_list = [values_list]
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289 if deserialise:
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290 if field.fieldType == 'boolean':
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291 values_list = [C.bool(v) for v in values_list]
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292 elif field.fieldType == 'text-multi':
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293 # for text-multi, lines must be put on separate values
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294 values_list = list(itertools.chain(*[v.splitlines() for v in values_list]))
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295
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296 elif 'jid' in field.fieldType:
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297 values_list = [jid.JID(v) for v in values_list]
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298 if 'list' in field.fieldType:
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299 # for lists, we check that given values are allowed in form
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300 allowed_values = [o.value for o in field.options]
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301 values_list = [v for v in values_list if v in allowed_values]
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302 if not values_list:
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303 # if values don't map to allowed values, we use default ones
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304 values_list = field.values
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305 field.values = values_list
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306
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307 yield self._p.sendItem(client, service, nodeIdentifier, form.toElement(), item_id, extra)
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308
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309
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310 class SchemaHandler(XMPPHandler):
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311 implements(iwokkel.IDisco)
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312
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313 def getDiscoInfo(self, requestor, service, nodeIdentifier=''):
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314 return [disco.DiscoFeature(NS_SCHEMA)]
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315
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316 def getDiscoItems(self, requestor, service, nodeIdentifier=''):
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317 return []