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<?xml version='1.0' encoding='UTF-8'?>
<?xml-stylesheet type='text/xsl' href='xep.xsl'?>
<xep>
<header>
<title>Clique - link-local chat rooms</title>
<abstract>A protocol for serverless link-local multi-user chat over
reliable multicast.</abstract>
<legal>Copyright (c) 2007 Collabora Limited. This document may be
distributed under the same terms as the Telepathy specification.</legal>
<number>proto-clique</number>
<status>ProtoXEP</status>
<type>Extension</type>
<sig>Standards</sig>
<approver>Telepathy project</approver>
<dependencies>
<spec>XMPP Core</spec>
<spec>XEP-0174</spec>
</dependencies>
<supersedes/>
<supersededby/>
<shortname>NOT YET ASSIGNED</shortname>
<author>
<firstname>Simon</firstname>
<surname>McVittie</surname>
<email>simon.mcvittie@collabora.co.uk</email>
<jid>simon.mcvittie@collabora.co.uk</jid>
</author>
<revision>
<version>0.0.1</version>
<date>2007-09-26</date>
<initials>smcv</initials>
<remark><p>First draft.</p></remark>
</revision>
</header>
<section1 topic='Introduction' anchor='intro'>
<p>Clique is an extension of XEP-0174 to support multi-user chat.</p>
</section1>
<section1 topic='Requirements' anchor='reqs'>
<p>STRONGLY RECOMMENDED.</p>
</section1>
<section1 topic='Glossary' anchor='glossary'>
<p>OPTIONAL.</p>
</section1>
<section1 topic='Use Cases' anchor='usecases'>
<section2 topic='Inviting a contact to a room'>
<code>
<![CDATA[
<!-- Sent via TCP from crone1@desktop to hecate@broom -->
<message from='crone1@desktop' to='hecate@broom'>
<x xmlns='http://telepathy.freedesktop.org/xmpp/ll/room-invitation'>
<invite protocol='rmulticast'>
<roomname>Witchcraft</roomname>
<address>224.0.0.66</address>
<port>13251</port>
<!-- reason is optional -->
<reason>We need to plot Macbeth's doom, but the XMPP server is
down</reason>
</invite>
</x>
<!-- for compatibility with legacy clients -->
<body>You got a chatroom invitation</body>
</message>
]]>
</code>
</section2>
</section1>
<section1 topic='Business Rules' anchor='rules'>
<p>OPTIONAL.</p>
</section1>
<section1 topic='Implementation Notes' anchor='impl'>
<p>OPTIONAL.</p>
</section1>
<section1 topic='Internationalization Considerations' anchor='i18n'>
<p>OPTIONAL.</p>
</section1>
<section1 topic='Security Considerations' anchor='security'>
<p>REQUIRED.</p>
</section1>
<section1 topic='IANA Considerations' anchor='iana'>
<p>REQUIRED.</p>
</section1>
<section1 topic='XMPP Registrar Considerations' anchor='registrar'>
<p>None.</p>
</section1>
<section1 topic='XML Schema' anchor='schema'>
<code>
<![CDATA[
<!-- FIXME: the namespace should be
http://telepathy.freedesktop.org/xmpp/protocol/ll/muc/ or something -->
<xs:schema
xmlns:xs='http://www.w3.org/2001/XMLSchema'
targetNamespace='http://telepathy.freedesktop.org/xmpp/ll/room-invitation'
xmlns='http://telepathy.freedesktop.org/xmpp/ll/room-invitation'
elementFormDefault='qualified'>
<!-- LLMUC invitation. Sent over the IM socket -->
<xs:element name='x'>
<xs:complexType>
<xs:choice>
<xs:element ref='invite'/>
</xs:choice>
</xs:complexType>
</xs:element>
<xs:element name='invite'>
<xs:complexType>
<xs:attribute name='protocol' use='required'>
<xs:simpleType>
<xs:restriction base='xs:string'>
<!-- Other values may be added in future -->
<xs:enumeration value='rmulticast'/>
</xs:restriction>
</xs:simpleType>
</xs:attribute>
<xs:all>
<xs:element name='roomname' type='xs:string'/>
<xs:element name='reason' minOccurs='0' type='xs:string'/>
<!-- Required for the 'rmulticast' protocol -->
<xs:element name='address' type='xs:string'/>
<xs:element name='port' type='xs:unsignedShort'/>
<!-- In OLPC builds, <properties> with NS_OLPC_ACTIVITY_PROPS
goes here -->
<xs:any minOccurs='0' maxOccurs='unbounded' namespace='##other'>
</xs:all>
</xs:complexType>
</xs:element>
</xs:schema>
]]>
</code>
</section1>
</xep>
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