File

spec/scansion/extdisco.scs @ 13134:638f627e707f

util.datamanager: Add O(1) list indexing with on-disk index Index file contains offsets and lengths of each item() which allows seeking directly to each item and reading it without parsing the entire file. Also allows tricks like binary search, assuming items have some defined order. We take advantage of the 1-based indexing in tables to store a magic header in the 0 position, so that table index 1 ends up at file index 1.
author Kim Alvefur <zash@zash.se>
date Tue, 11 May 2021 02:09:56 +0200
parent 11753:c4599a7c534c
line wrap: on
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# XEP-0215: External Service Discovery

[Client] Romeo
	password: password
	jid: user@localhost/mFquWxSr

-----

Romeo connects

Romeo sends:
	<iq type='get' xml:lang='sv' id='lx2' to='localhost'>
		<services xmlns='urn:xmpp:extdisco:2'/>
	</iq>

Romeo receives:
	<iq type='result' id='lx2' from='localhost'>
		<services xmlns='urn:xmpp:extdisco:2'>
			<service host='default.example' transport='udp' port='9876' type='stun'/>
			<service port='9876' type='turn' restricted='1' password='yHYYBDN7M3mdlug0LTdJbW0GvvQ=' transport='udp' host='default.example' username='1219525744'/>
			<service port='9876' type='turn' restricted='1' password='1Uc6QfrDhIlbK97rGCUQ/cUICxs=' transport='udp' host='default.example' username='1219525744'/>
			<service port='2121' type='ftp' restricted='1' password='password' transport='tcp' host='default.example' username='john'/>
			<service port='21' type='ftp' restricted='1' password='password' transport='tcp' host='ftp.example.com' username='john'/>
		</services>
	</iq>

Romeo sends:
	<iq type='get' xml:lang='sv' id='lx3' to='localhost'>
		<services xmlns='urn:xmpp:extdisco:2' type='ftp'/>
	</iq>

Romeo receives:
	<iq type='result' id='lx3' from='localhost'>
		<services xmlns='urn:xmpp:extdisco:2'>
			<service port='2121' type='ftp' restricted='1' password='password' transport='tcp' host='default.example' username='john'/>
			<service port='21' type='ftp' restricted='1' password='password' transport='tcp' host='ftp.example.com' username='john'/>
		</services>
	</iq>

Romeo sends:
	<iq type='get' xml:lang='sv' id='lx4' to='localhost'>
		<credentials xmlns='urn:xmpp:extdisco:2'>
			<service host='default.example' type='turn'/>
		</credentials>
	</iq>

Romeo receives:
	<iq type='result' id='lx4' from='localhost'>
		<credentials xmlns='urn:xmpp:extdisco:2'>
			<service port='9876' type='turn' restricted='1' password='yHYYBDN7M3mdlug0LTdJbW0GvvQ=' transport='udp' host='default.example' username='1219525744'/>
			<service port='9876' type='turn' restricted='1' password='1Uc6QfrDhIlbK97rGCUQ/cUICxs=' transport='udp' host='default.example' username='1219525744'/>
		</credentials>
	</iq>

Romeo sends:
	<iq type='get' xml:lang='sv' id='lx5' to='localhost'>
		<credentials xmlns='urn:xmpp:extdisco:2'>
			<service host='default.example' />
		</credentials>
	</iq>

Romeo receives:
	<iq type='error' id='lx5' from='localhost'>
		<error type='modify'>
			<bad-request xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/>
		</error>
	</iq>

Romeo disconnects

# recording ended on 2020-07-18T16:47:57Z