mirror of
https://github.com/moparisthebest/xeps
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106 lines
3.2 KiB
XML
106 lines
3.2 KiB
XML
<?xml version='1.0' encoding='UTF-8'?>
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<!DOCTYPE xep SYSTEM 'xep.dtd' [
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<!ENTITY % ents SYSTEM 'xep.ent'>
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%ents;
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]>
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<?xml-stylesheet type='text/xsl' href='xep.xsl'?>
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<xep>
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<header>
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<title>Implicit XMPP WebSocket Endpoints</title>
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<abstract>This document specifies implicit connection endpoints for XMPP over WebSocket (RFC 7395).</abstract>
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&LEGALNOTICE;
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<number>xxxx</number>
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<status>ProtoXEP</status>
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<type>Standards Track</type>
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<sig>Standards</sig>
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<approver>Council</approver>
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<dependencies>
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<spec>XMPP Core</spec>
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<spec>XEP-0001</spec>
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<spec>Etc.</spec>
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</dependencies>
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<supersedes/>
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<supersededby/>
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<shortname>iwe</shortname>
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&flow;
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<revision>
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<version>0.0.1</version>
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<date>2020-01-28</date>
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<initials>fs</initials>
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<remark><p>First draft.</p></remark>
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</revision>
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</header>
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<section1 topic='Introduction' anchor='intro'>
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<p>Unlike for XMPP connections via TCP as specified in &rfc6120;,
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there exists no specificiation of implicit connection endpoints for
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XMPP over WebSocket (&rfc7395;). As a result, XMPP services which
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whish to provide WebSocket connectivity need to announce their
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WebSocket endpoints, so that clients are able to discover them (RFC
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7395 § 4). This XEP fills this gap. It eventually enables, under
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certain conditions, XMPP services to provide WebSocket connectivty,
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without resorting to &xep0156; nor requiring manual configuration by
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the user.</p>
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</section1>
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<section1 topic='Implicit XMPP WebSocket Endpoints' anchor='reqs'>
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<p>The following implicit XMPP WebSocket endpoints are specified:</p>
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<ul>
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<li>wss://<xmpp-service-name>:5443/ws</li>
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<li>ws://<xmpp-service-name>:5443/ws</li>
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<li>wss://<xmpp-service-name>/ws</li>
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<li>ws://<xmpp-service-name>/ws</li>
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</ul>
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<p>TODO: Use implicit endpoints only if no other endpoints were
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discovered?</p>
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</section1>
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<section1 topic='Implementation Notes' anchor='impl'>
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<p>Implementations should note that due this XEP, the collection of
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potential endpoints may contain duplicates. This is because the
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implicit WebSocket connection endpoints defined herein may match the
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ones that where discovered (RFC 7395 § 4, XEP-0156). Implementations
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may want to ensure that no such duplicates exist.</p>
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<p>Furthermore, implementations attempting to connect to the
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discovered endpoints serially, as opposed to concurrently, may use
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the implicit endpoints only as last resort.</p>
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</section1>
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<section1 topic='Security Considerations' anchor='security'>
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<p>Since the implicit WebSocket connection endpoints are defined to
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include the XMPP service name, the verification required when using
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the secured variant of the WebSocket transport provides the
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necessary security.</p>
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</section1>
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<section1 topic='IANA Considerations' anchor='iana'>
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<p>This document requires no interaction with &IANA;.</p>
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</section1>
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<section1 topic='XMPP Registrar Considerations' anchor='registrar'>
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<p>This document requires no interaction with the XMPP registrar.</p>
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</section1>
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<section1 topic='XML Schema' anchor='schema'>
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<p>No XML schema specification is required, as this XEP does not
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specify any XML data.</p>
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</section1>
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</xep>
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