118 lines
4.1 KiB
Python
Executable file
118 lines
4.1 KiB
Python
Executable file
#!/usr/bin/env python2
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# -*- coding: utf-8 -*-
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# SAT plugin to implement XEP-0315 (Data Forms XML Element)
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# Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org)
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from sat.core.i18n import _
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from sat.core.constants import Const as C
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from sat.core.log import getLogger
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from wokkel import data_form
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from twisted.words.xish import domish
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log = getLogger(__name__)
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PLUGIN_INFO = {
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C.PI_NAME: "Data Forms XML Element",
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C.PI_IMPORT_NAME: "XEP-0315",
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C.PI_TYPE: "XEP",
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C.PI_PROTOCOLS: ["XEP-0315"],
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C.PI_DEPENDENCIES: [],
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C.PI_MAIN: "XEP_0315",
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C.PI_HANDLER: "no",
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C.PI_DESCRIPTION: _(u"""Implementation of Data Forms XML Element"""),
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}
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NS_XML_ELEMENT = u"urn:xmpp:xml-element"
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class Field(data_form.Field):
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"""Field class adding implementation for XML Element"""
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def __init__(self, fieldType='text-single', var=None, value=None,
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values=None, options=None, label=None, desc=None,
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required=False, ext_type=None):
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"""
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@ext_type(None, unicode): extended type, can be:
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- xml: field is an XML Element
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- None: field is a base (XEP-0004) type
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"""
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super(Field, self).__init__(fieldType, var, value, values, options, label, desc,
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required)
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self.ext_type = ext_type
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def typeCheck(self):
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if self.ext_type is not None:
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# we use an extended type
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if self.fieldType not in (None, 'hidden'):
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raise ValueError('Invalid main type for a extended type field')
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if len(self.values) != 1:
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raise ValueError('extended type must have one and only one value')
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if self.options:
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raise ValueError('options must not be set for extented type')
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if self.ext_type == u'xml':
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if not isinstance(self.value, domish.Element):
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raise ValueError('invalid value, a domish.Element is expected')
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else:
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raise ValueError(
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'Unknown extended type: {ext_type}'.format(ext_type=self.ext_type))
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return super(Field, self).typeCheck()
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def toElement(self, asForm=False):
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if self.ext_type is None:
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return super(Field, self).toElement(asForm)
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else:
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self.typeCheck()
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field_elt = domish.Element((data_form.NS_X_DATA, 'field'))
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if self.fieldType:
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field_elt['type'] = self.fieldType
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if self.var is not None:
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field_elt['var'] = self.var
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wrapper_elt = field_elt.addElement((NS_XML_ELEMENT, u'wrapper'))
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wrapper_elt.addChild(self.value)
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if asForm:
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if self.label is not None:
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field_elt['label'] = self.label
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if self.desc is not None:
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field_elt.addElement('desc', content=self.desc)
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if self.required:
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field_elt.addElement('required')
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return field_elt
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@staticmethod
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def fromElement(element):
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field = super(Field, Field).fromElement(element)
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if element.wrapper and element.wrapper.uri == NS_XML_ELEMENT:
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field.ext_type = u"xml"
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field.value = element.wrapper.firstChildElement()
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return field
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class XEP_0315(object):
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def __init__(self, host):
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self.host = host
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if data_form.Field is not Field:
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log.debug(u"installing data_form data extension")
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data_form.Field = Field
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