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annotate mod_tcpproxy/README.markdown @ 4565:3b2ae854842c

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mod_muc_bot: Save occupant to room This has some side-effects: Firstly, the bot shows up in occupant list, which is nice. Secondly, the bot starts receiving messages from the room which might be wanted, but it would be better to join the room for real in this case.
author Kim Alvefur <zash@zash.se>
date Sat, 10 Apr 2021 19:23:25 +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