Initial support for XEP-0258

sleekxmpp/plugins/xep_0258/stanza.py

@@ -0,0 +1,142 @@
+"""
+    SleekXMPP: The Sleek XMPP Library
+    Copyright (C) 2012 Nathanael C. Fritz, Lance J.T. Stout
+    This file is part of SleekXMPP.
+
+    See the file LICENSE for copying permission.
+"""
+
+from base64 import b64encode, b64decode
+
+from sleekxmpp.thirdparty.suelta.util import bytes
+
+from sleekxmpp.xmlstream import ElementBase, ET, register_stanza_plugin
+
+
+class SecurityLabel(ElementBase):
+    name = 'securitylabel'
+    namespace = 'urn:xmpp:sec-label:0'
+    plugin_attrib = 'security_label'
+
+    def add_equivalent(self, label):
+        equiv = EquivalentLabel(parent=self)
+        equiv.append(label)
+        return equiv
+
+
+class Label(ElementBase):
+    name = 'label'
+    namespace = 'urn:xmpp:sec-label:0'
+    plugin_attrib = 'label'
+
+
+class DisplayMarking(ElementBase):
+    name = 'displaymarking'
+    namespace = 'urn:xmpp:sec-label:0'
+    plugin_attrib = 'display_marking' 
+    interfaces = set(['fgcolor', 'bgcolor', 'value'])
+
+    def get_fgcolor(self):
+        return self._get_attr('fgcolor', 'black')
+
+    def get_bgcolor(self):
+        return self._get_attr('fgcolor', 'white')
+
+    def get_value(self):
+        return self.xml.text
+
+    def set_value(self, value):
+        self.xml.text = value
+
+    def del_value(self):
+        self.xml.text = ''
+
+
+class EquivalentLabel(ElementBase):
+    name = 'equivalentlabel'
+    namespace = 'urn:xmpp:sec-label:0'
+    plugin_attrib = 'equivalent_label'
+    plugin_multi_attrib = 'equivalent_labels'
+
+
+class Catalog(ElementBase):
+    name = 'catalog'
+    namespace = 'urn:xmpp:sec-label:catalog:2'
+    plugin_attrib = 'security_label_catalog'
+    interfaces = set(['to', 'from', 'name', 'desc', 'id', 'size', 'restrict'])
+
+    def get_to(self):
+        return JID(self._get_attr('to'))
+        pass
+
+    def set_to(self, value):
+        return self._set_attr('to', str(value))
+
+    def get_from(self):
+        return JID(self._get_attr('from'))
+
+    def set_from(self, value):
+        return self._set_attr('from', str(value))
+
+    def get_restrict(self):
+        value = self._get_attr('restrict', '')
+        if value and value.lower() in ('true', '1'):
+            return True
+        return False
+
+    def set_restrict(self, value):
+        self._del_attr('restrict')
+        if value:
+            self._set_attr('restrict', 'true')
+        elif value == False:
+            self._set_attr('restrict', 'false')
+
+
+class CatalogItem(ElementBase):
+    name = 'catalog'
+    namespace = 'urn:xmpp:sec-label:catalog:2'
+    plugin_attrib = 'item'
+    plugin_multi_attrib = 'items'
+    interfaces = set(['selector', 'default'])
+
+    def get_default(self):
+        value = self._get_attr('default', '')
+        if value.lower() in ('true', '1'):
+            return True
+        return False
+
+    def set_default(self, value):
+        self._del_attr('default')
+        if value:
+            self._set_attr('default', 'true')
+        elif value == False:
+            self._set_attr('default', 'false')
+
+
+class ESSLabel(ElementBase):
+    name = 'esssecuritylabel'
+    namespace = 'urn:xmpp:sec-label:ess:0'
+    plugin_attrib = 'ess'
+    interfaces = set(['value'])
+
+    def get_value(self):
+        if self.xml.text:
+            return b64decode(bytes(self.xml.text))
+        return ''
+
+    def set_value(self, value):
+        self.xml.text = ''
+        if value:
+            self.xml.text = b64encode(bytes(value))
+
+    def del_value(self):
+        self.xml.text = ''
+
+
+register_stanza_plugin(Catalog, CatalogItem, iterable=True)
+register_stanza_plugin(CatalogItem, SecurityLabel)
+register_stanza_plugin(EquivalentLabel, ESSLabel)
+register_stanza_plugin(Label, ESSLabel)
+register_stanza_plugin(SecurityLabel, DisplayMarking)
+register_stanza_plugin(SecurityLabel, EquivalentLabel, iterable=True)
+register_stanza_plugin(SecurityLabel, Label)