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annotate mod_tcpproxy/README.markdown @ 4732:607cac9b9393

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mod_rest: Add recursive properties of XEP-0297 forwarded container Let's pray nobody invents a way to loop stanza references as well.
author Kim Alvefur <zash@zash.se>
date Wed, 27 Oct 2021 20:45:28 +0200
parents 8de50be756e5
children 3804332c204e
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1 ---
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2 labels:
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3 - 'Stage-Beta'
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4 summary: 'TCP-over-XMPP :)'
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5 ...
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7 Introduction
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8 ============
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9
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10 It happens occasionally that I would like to use the XMPP server as a
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11 generic proxy for connecting to another service. It is especially
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12 awkward in some environments, and impossible in (for example) Javascript
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13 inside a web browser.
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15 Details
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16 =======
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17
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18 Using mod\_tcpproxy an XMPP client (including those using BOSH) can
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19 initiate a pipe to a given TCP/IP address and port. This implementation
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20 uses the [In-Band Bytestreams](http://xmpp.org/extensions/xep-0047.html)
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21 XEP, simply extended with 2 new attributes in a new namespace, host and
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22 port.
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24 An example Javascript client can be found in the web/ directory of
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25 mod\_tcpproxy in the repository.
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26
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27 Configuration
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28 =============
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29
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30 Just add tcpproxy as a component, for example:
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32 `Component "tcp.example.com" "tcpproxy"`
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34 Protocol
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35 ========
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36
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37 A new stream is opened like this:
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38
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39 ``` {.xml}
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40 <iq type="set" id="newconn1" to="tcp.example.com">
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41 <open xmlns='http://jabber.org/protocol/ibb'
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42         sid='connection1'
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43         stanza='message'
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44 xmlns:tcp='http://prosody.im/protocol/tcpproxy'
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45 tcp:host='example.com'
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46 tcp:port='80' />
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47 </iq>
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48 ```
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50 The stanza attribute (currently) MUST be 'message', and a block-size, if
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51 given, is (currently) ignored.
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53 In response to this stanza you will receive a result upon connection
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54 success, or an error if the connection failed. You can then send to the
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55 connection by sending message stanzas as described in the IBB XEP.
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56 Incoming data will likewise be delivered as messages.
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58 Compatibility
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59 =============
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61 ----- --------------
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62 0.7 Works
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63 0.6 Doesn't work
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64 ----- --------------
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66 Todo
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67 ====
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68
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69 - ACLs (restrict to certain JIDs, and/or certain target hosts/ports)
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70 - Honour block-size (undecided)
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71 - Support iq stanzas for data transmission
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72 - Signal to start SSL/TLS on a connection