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diff --git a/sipsimple/applications/resourcelists.py b/sipsimple/applications/resourcelists.py
index 005f13d6..2ee27562 100644
--- a/sipsimple/applications/resourcelists.py
+++ b/sipsimple/applications/resourcelists.py
@@ -1,308 +1,307 @@
"""Resource lists (rfc4826) handling
This module provides convenient classes to parse and generate
resource-lists documents as described in RFC 4826.
Generation
----------
>>> bill = Entry('sip:bill@example.com', display_name = 'Bill Doe')
>>> petri = EntryRef('some/ref')
>>> friends = List([bill, petri])
>>> rl = ResourceLists([friends])
>>> print rl.toxml(pretty_print=True)
<?xml version='1.0' encoding='UTF-8'?>
<rl:resource-lists xmlns:rl="urn:ietf:params:xml:ns:resource-lists">
<rl:list>
<rl:entry uri="sip:bill@example.com">
<rl:display-name>Bill Doe</rl:display-name>
</rl:entry>
<rl:entry-ref ref="some/ref"/>
</rl:list>
</rl:resource-lists>
<BLANKLINE>
toxml() wraps etree.tostring() and accepts all its arguments (like pretty_print).
Parsing
-------
>>> r = ResourceLists.parse(example_from_section_3_3_rfc)
>>> len(r)
1
>>> friends = r[0]
>>> friends.name
'friends'
>>> bill = friends[0]
>>> bill.uri
'sip:bill@example.com'
>>> print bill.display_name
Bill Doe
>>> close_friends = friends[2]
>>> print close_friends[0]
"Joe Smith" <sip:joe@example.com>
>>> print close_friends[2].display_name
Marketing
"""
-import sys
from sipsimple.applications import ValidationError, XMLApplication, XMLListRootElement, XMLElement, XMLListElement, XMLStringElement, XMLAttribute, XMLElementChild
from sipsimple.applications.util import SIPURI
__all__ = ['_namespace_',
'ResourceListsApplication',
'DisplayName',
'Entry',
'EntryRef',
'External',
'List',
'ResourceLists']
_namespace_ = 'urn:ietf:params:xml:ns:resource-lists'
# excerpt from the RFC:
# <list>
# attribute "name" - optional, unique among the same level
# body: optional <display-name>, the sequence of entry/list/entry-ref/external
# <display-name>
# attribute xml:lang - optional
# body: utf8 string
# <entry>
# attribute "uri" - mandatory, unique among all other <uri> within the same parent
# body: optional <display-name>
# <entry-ref>
# attribute "ref" - mandatory, unique among all other <entry-ref> within the same parent
# body: optional <display-name>
# ref is a relative URI that resolves into <entry>
# <external>
# attribute "anchor" - mandatory, unique among all other anchor in <external> within the same parent
# anchor must be an absolute http uri that resolves into <list>
class ResourceListsApplication(XMLApplication): pass
ResourceListsApplication.register_namespace(_namespace_, prefix='rl')
## Marker mixins
class ListElement(object): pass
## Elements
class DisplayName(XMLStringElement):
_xml_tag = 'display-name'
_xml_namespace = _namespace_
_xml_application = ResourceListsApplication
_xml_lang = True
class Entry(XMLElement, ListElement):
_xml_tag = 'entry'
_xml_namespace = _namespace_
_xml_application = ResourceListsApplication
_xml_children_order = {DisplayName.qname: 0}
uri = XMLAttribute('uri', type=SIPURI, required=True, test_equal=True)
display_name = XMLElementChild('display_name', type=DisplayName, required=False, test_equal=False)
_xml_id = uri
def __init__(self, uri, display_name=None):
XMLElement.__init__(self)
self.uri = uri
self.display_name = display_name
def __str__(self):
return self.display_name and '"%s" <%s>' % (self.display_name, self.uri) or self.uri
def __repr__(self):
return '%s(%r, %r)' % (self.__class__.__name__, self.uri, self.display_name)
class EntryRef(XMLElement, ListElement):
_xml_tag = 'entry-ref'
_xml_namespace = _namespace_
_xml_application = ResourceListsApplication
_xml_children_order = {DisplayName.qname: 0}
ref = XMLAttribute('ref', type=str, required=True, test_equal=True)
display_name = XMLElementChild('display_name', type=DisplayName, required=False, test_equal=False)
_xml_id = ref
def __init__(self, ref, display_name=None):
XMLElement.__init__(self)
self.ref = ref
self.display_name = display_name
def __str__(self):
return self.display_name and '"%s" <%s>' % (self.display_name, self.ref) or self.ref
def __repr__(self):
return '%s(%r, %r)' % (self.__class__.__name__, self.ref, self.display_name)
class External(XMLElement, ListElement):
_xml_tag = 'external'
_xml_namespace = _namespace_
_xml_application = ResourceListsApplication
_xml_children_order = {DisplayName.qname: 0}
anchor = XMLAttribute('anchor', type=str, required=True, test_equal=True)
display_name = XMLElementChild('display_name', type=DisplayName, required=False, test_equal=False)
_xml_id = anchor
def __init__(self, anchor, display_name=None):
XMLElement.__init__(self)
self.anchor = anchor
self.display_name = display_name
def __str__(self):
return self.display_name and '"%s" <%s>' % (self.display_name, self.anchor) or self.anchor
def __repr__(self):
return '%s(%r, %r)' % (self.__class__.__name__, self.anchor, self.display_name)
class List(XMLListElement, ListElement):
_xml_tag = 'list'
_xml_namespace = _namespace_
_xml_application = ResourceListsApplication
_xml_children_order = {DisplayName.qname: 0,
Entry.qname: 1,
EntryRef.qname: 1,
External.qname: 1}
name = XMLAttribute('name', type=str, required=False, test_equal=True)
display_name = XMLElementChild('display_name', type=DisplayName, required=False, test_equal=False)
_xml_id = name
def __init__(self, entries=[], name=None, display_name=None):
XMLListElement.__init__(self)
self.name = name
self.display_name = display_name
self[0:0] = entries
def _parse_element(self, element, *args, **kwargs):
for child in element:
child_cls = self._xml_application.get_element(child.tag, None)
if child_cls is not None and issubclass(child_cls, ListElement):
try:
value = child_cls.from_element(child, *args, **kwargs)
except ValidationError:
pass
else:
for basetype in (List, Entry, EntryRef, External):
if isinstance(value, basetype):
break
else:
list.append(self, value)
continue
for elem in self:
if isinstance(elem, basetype) and value._xml_id == elem._xml_id:
element.remove(child)
break
else:
list.append(self, value)
def _build_element(self, *args, **kwargs):
# build children
for child in self:
child.to_element(*args, **kwargs)
def _add_item(self, value):
for basetype in (List, Entry, EntryRef, External):
if isinstance(value, basetype):
break
else:
if isinstance(value, ListElement):
return value
raise TypeError("cannot add element type %s to List" % value.__class__.__name__)
for elem in self:
if isinstance(elem, basetype) and value._xml_id == elem._xml_id:
raise ValueError("cannot have more than one %s with the same id attribute at this level: %r" % (basetype.__name__, value._xml_id))
self._insert_element(value.element)
return value
def _del_item(self, value):
self.element.remove(value.element)
def __str__(self):
name = 'List element'
if self.name is not None:
name += ' %s' % str(self.name)
if self.display_name is not None:
name += ' (%s)' % str(self.display_name)
return name
def __repr__(self):
return '%s(%s, %r, %r)' % (self.__class__.__name__, list.__repr__(self), self.name, self.display_name)
List._xml_children_order[List.qname] = 1 # cannot self reference in declaration
class ResourceLists(XMLListRootElement):
content_type = 'application/resource-lists+xml'
_xml_tag = 'resource-lists'
_xml_namespace = _namespace_
_xml_application = ResourceListsApplication
_xml_children_order = {List.qname: 0}
_xml_schema_file = 'resourcelists.xsd'
def __init__(self, lists=[]):
XMLListRootElement.__init__(self)
self._lists = {}
self[:] = lists
def _parse_element(self, element, *args, **kwargs):
self._lists = {}
for child in element:
if child.tag == List.qname:
try:
rlist = List.from_element(child, *args, **kwargs)
except ValidationError:
pass
else:
if rlist.name in self._lists:
element.remove(child)
continue
list.append(self, rlist)
self._lists[rlist.name] = rlist
else:
element.remove(child)
def _build_element(self, *args, **kwargs):
for rlist in self:
rlist.to_element(*args, **kwargs)
def _add_item(self, rlist):
if not isinstance(rlist, List):
raise TypeError("found %s, expected %s" % (rlist.__class__.__name__, List.__name__))
if rlist.name in self._lists:
raise ValueError("cannot have more than one list with the same name at this level: %s" % rlist.name)
self._lists[rlist.name] = rlist
self._insert_element(rlist.element)
return rlist
def _del_item(self, rlist):
del self._lists[rlist.name]
self.element.remove(rlist.element)
# it also makes sense to be able to get a List by its name
def __getitem__(self, key):
if isinstance(key, basestring):
return self._lists[key]
else:
return super(ResourceLists, self).__getitem__(key)

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