Mercurial > prosody-modules

annotate mod_proxy65/mod_proxy65.lua @ 79:34f5818c90e9

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mod_proxy65: answer with correct disco#info data on a disco#info request
author Thilo Cestonaro <thilo@cestona.ro>
date Sun, 01 Nov 2009 14:37:28 +0100
parents 85b8622ccffd
children bed9a6b40fae
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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64
853c3c7e9936 mod_proxy65: remove the proxy65 folder
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1 -- Copyright (C) 2009 Thilo Cestonaro
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2 --
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3 -- This project is MIT/X11 licensed. Please see the
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4 -- COPYING file in the source package for more information.
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5 --
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6
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7 if module:get_host_type() ~= "component" then
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8 error("proxy65 should be loaded as a component, please see http://prosody.im/doc/components", 0);
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9 end
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10
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11 local jid_split = require "util.jid".split;
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12 local st = require "util.stanza";
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13 local componentmanager = require "core.componentmanager";
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14 local config_get = require "core.configmanager".get;
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15 local connlisteners = require "net.connlisteners";
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16 local sha1 = require "util.hashes".sha1;
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17
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18 local host, name = module:get_host(), "SOCKS5 Bytestreams Service";
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19 local sessions, transfers, component, replies_cache = {}, {}, nil, {};
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20
68
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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21 local proxy_port = config_get(host, "core", "proxy65_port") or 5000;
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22 local proxy_interface = config_get(host, "core", "proxy65_interface") or "*";
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23 local proxy_address = config_get(host, "core", "proxy65_address") or (proxy_interface ~= "*" and proxy_interface) or host;
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24
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25 local connlistener = { default_port = proxy_port, default_interface = proxy_interface, default_mode = "*a" };
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26
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27 function connlistener.listener(conn, data)
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28 local session = sessions[conn] or {};
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29
77
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30 if session.setup == nil and data ~= nil and data:sub(1):byte() == 0x05 and data:len() > 2 then
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31 local nmethods = data:sub(2):byte();
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32 local methods = data:sub(3);
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33 local supported = false;
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34 for i=1, nmethods, 1 do
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35 if(methods:sub(i):byte() == 0x00) then -- 0x00 == method: NO AUTH
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36 supported = true;
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37 break;
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38 end
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39 end
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40 if(supported) then
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41 module:log("debug", "new session found ... ")
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42 session.setup = true;
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43 sessions[conn] = session;
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44 conn.write(string.char(5, 0));
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45 end
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46 return;
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47 end
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48 if session.setup then
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49 if session.sha ~= nil and transfers[session.sha] ~= nil then
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50 local sha = session.sha;
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51 if transfers[sha].activated == true and transfers[sha].initiator == conn and transfers[sha].target ~= nil then
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52 transfers[sha].target.write(data);
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53 return;
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54 end
65
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55 end
66
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56 if data ~= nil and data:len() == 0x2F and -- 40 == length of SHA1 HASH, and 7 other bytes => 47 => 0x2F
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57 data:sub(1):byte() == 0x05 and -- SOCKS5 has 5 in first byte
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58 data:sub(2):byte() == 0x01 and -- CMD must be 1
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59 data:sub(3):byte() == 0x00 and -- RSV must be 0
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60 data:sub(4):byte() == 0x03 and -- ATYP must be 3
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61 data:sub(5):byte() == 40 and -- SHA1 HASH length must be 40 (0x28)
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62 data:sub(-2):byte() == 0x00 and -- PORT must be 0, size 2 byte
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63 data:sub(-1):byte() == 0x00
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64 then
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65 local sha = data:sub(6, 45); -- second param is not count! it's the ending index (included!)
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66 if transfers[sha] == nil then
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67 transfers[sha] = {};
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68 transfers[sha].activated = false;
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69 transfers[sha].target = conn;
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70 session.sha = sha;
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71 module:log("debug", "target connected ... ");
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72 elseif transfers[sha].target ~= nil then
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73 transfers[sha].initiator = conn;
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74 session.sha = sha;
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75 module:log("debug", "initiator connected ... ");
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76 end
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77 conn.write(string.char(5, 0, 0, 3, sha:len()) .. sha .. string.char(0, 0)); -- VER, REP, RSV, ATYP, BND.ADDR (sha), BND.PORT (2 Byte)
66
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78 end
77
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79 else
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80 if data ~= nil then
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81 module:log("debug", "unknown connection with no authentication data -> closing it");
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82 conn.close();
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83 end
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84 end
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85 end
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86
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87 function connlistener.disconnect(conn, err)
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88 local session = sessions[conn];
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89 if session then
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90 if session.sha and transfers[session.sha] then
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91 local initiator, target = transfers[session.sha].initiator, transfers[session.sha].target;
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92 if initiator == conn then
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93 target.close();
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94 elseif target == conn then
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95 initiator.close();
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96 end
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97 end
68
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98 -- Clean up any session-related stuff here
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99 sessions[conn] = nil;
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100 end
65
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101 end
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102
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103 local function get_disco_info(stanza)
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104 local reply = replies_cache.disco_info;
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105 if reply == nil then
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106 reply = st.iq({type='result', from=host}):query("http://jabber.org/protocol/disco#info")
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107 :tag("identity", {category='proxy', type='bytestreams', name=name}):up()
65
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108 :tag("feature", {var="http://jabber.org/protocol/bytestreams"});
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109 replies_cache.disco_info = reply;
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110 end
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111
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112 reply.attr.id = stanza.attr.id;
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113 reply.attr.to = stanza.attr.from;
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114 return reply;
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115 end
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116
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117 local function get_disco_items(stanza)
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118 local reply = replies_cache.disco_items;
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119 if reply == nil then
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parents: 66
diff changeset
120 reply = st.iq({type='result', from=host}):query("http://jabber.org/protocol/disco#items");
79
34f5818c90e9 mod_proxy65: answer with correct disco#info data on a disco#info request
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parents: 77
diff changeset
121 replies_cache.disco_items = reply;
65
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
122 end
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
123
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
124 reply.attr.id = stanza.attr.id;
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
125 reply.attr.to = stanza.attr.from;
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
126 return reply;
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
127 end
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
128
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
Thilo Cestonaro <thilo@cestona.ro>
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diff changeset
129 local function get_stream_host(stanza)
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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130 local reply = replies_cache.stream_host;
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
131 local sid = stanza.tags[1].attr.sid;
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
132 if reply == nil then
68
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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parents: 66
diff changeset
133 reply = st.iq({type="result", from=host})
65
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
134 :query("http://jabber.org/protocol/bytestreams")
68
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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135 :tag("streamhost", {jid=host, host=proxy_address, port=proxy_port}); -- TODO get the correct data
65
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
136 replies_cache.stream_host = reply;
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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parents: 64
diff changeset
137 end
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diff changeset
138
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
139 reply.attr.id = stanza.attr.id;
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
140 reply.attr.to = stanza.attr.from;
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
141 reply.tags[1].attr.sid = sid;
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diff changeset
142 return reply;
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diff changeset
143 end
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diff changeset
144
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
145 module.unload = function()
72
2bf6c7c590a1 mod_proxy65: component register and deregister are with "_component" appended
Thilo Cestonaro <thilo@cestona.ro>
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diff changeset
146 componentmanager.deregister_component(host);
74
d70813f7d90a mod_proxy65: make it work again
Thilo Cestonaro <thilo@cestona.ro>
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diff changeset
147 connlisteners.deregister(module.host .. ':proxy65');
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diff changeset
148 end
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diff changeset
149
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diff changeset
150 local function set_activation(stanza)
68
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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diff changeset
151 local from, to, sid, reply = nil;
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diff changeset
152 from = stanza.attr.from;
65
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
153 if stanza.tags[1] ~= nil and tostring(stanza.tags[1].name) == "query" then
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
154 if stanza.tags[1].attr ~= nil then
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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parents: 64
diff changeset
155 sid = stanza.tags[1].attr.sid;
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
156 end
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
157 if stanza.tags[1].tags[1] ~= nil and tostring(stanza.tags[1].tags[1].name) == "activate" then
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
158 to = stanza.tags[1].tags[1][1];
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159 end
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diff changeset
160 end
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diff changeset
161 if from ~= nil and to ~= nil and sid ~= nil then
68
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parents: 66
diff changeset
162 reply = st.iq({type="result", from=host});
65
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
163 reply.attr.id = stanza.attr.id;
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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parents: 64
diff changeset
164 end
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
165 return reply, from, to, sid;
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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parents: 64
diff changeset
166 end
a35eb0764ac6 mod_proxy65: tcp connection of initiator and target are established
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diff changeset
167
68
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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parents: 66
diff changeset
168 function handle_to_domain(origin, stanza)
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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parents: 66
diff changeset
169 local to_node, to_host, to_resource = jid_split(stanza.attr.to);
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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parents: 66
diff changeset
170 if to_node == nil then
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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parents: 66
diff changeset
171 local type = stanza.attr.type;
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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diff changeset
172 if type == "error" or type == "result" then return; end
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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parents: 66
diff changeset
173 if stanza.name == "iq" and type == "get" then
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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parents: 66
diff changeset
174 local xmlns = stanza.tags[1].attr.xmlns
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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parents: 66
diff changeset
175 if xmlns == "http://jabber.org/protocol/disco#info" then
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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parents: 66
diff changeset
176 origin.send(get_disco_info(stanza));
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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parents: 66
diff changeset
177 return true;
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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parents: 66
diff changeset
178 elseif xmlns == "http://jabber.org/protocol/disco#items" then
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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parents: 66
diff changeset
179 origin.send(get_disco_items(stanza));
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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parents: 66
diff changeset
180 return true;
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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parents: 66
diff changeset
181 elseif xmlns == "http://jabber.org/protocol/bytestreams" then
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
Matthew Wild <mwild1@gmail.com>
parents: 66
diff changeset
182 origin.send(get_stream_host(stanza));
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
Matthew Wild <mwild1@gmail.com>
parents: 66
diff changeset
183 return true;
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
Matthew Wild <mwild1@gmail.com>
parents: 66
diff changeset
184 end
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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parents: 66
diff changeset
185 elseif stanza.name == "iq" and type == "set" then
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
Matthew Wild <mwild1@gmail.com>
parents: 66
diff changeset
186 local reply, from, to, sid = set_activation(stanza);
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
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parents: 66
diff changeset
187 if reply ~= nil and from ~= nil and to ~= nil and sid ~= nil then
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
Matthew Wild <mwild1@gmail.com>
parents: 66
diff changeset
188 local sha = sha1(sid .. from .. to, true);
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
Matthew Wild <mwild1@gmail.com>
parents: 66
diff changeset
189 if transfers[sha] == nil then
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
Matthew Wild <mwild1@gmail.com>
parents: 66
diff changeset
190 module:log("error", "transfers[sha]: nil");
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
Matthew Wild <mwild1@gmail.com>
parents: 66
diff changeset
191 elseif(transfers[sha] ~= nil and transfers[sha].initiator ~= nil and transfers[sha].target ~= nil) then
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
Matthew Wild <mwild1@gmail.com>
parents: 66
diff changeset
192 origin.send(reply);
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
Matthew Wild <mwild1@gmail.com>
parents: 66
diff changeset
193 transfers[sha].activated = true;
64
853c3c7e9936 mod_proxy65: remove the proxy65 folder
Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
194 end
853c3c7e9936 mod_proxy65: remove the proxy65 folder
Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
195 end
68
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
Matthew Wild <mwild1@gmail.com>
parents: 66
diff changeset
196 end
64
853c3c7e9936 mod_proxy65: remove the proxy65 folder
Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
197 end
68
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
Matthew Wild <mwild1@gmail.com>
parents: 66
diff changeset
198 return;
64
853c3c7e9936 mod_proxy65: remove the proxy65 folder
Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
199 end
853c3c7e9936 mod_proxy65: remove the proxy65 folder
Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
200
73
adb9d1b879c2 mod_proxy65: changed the listener name to be unique on a per component basis and display a good error description when connlistener register fails
Thilo Cestonaro <thilo@cestona.ro>
parents: 72
diff changeset
201 if not connlisteners.register(module.host .. ':proxy65', connlistener) then
68
0df3e4d1f1a3 mod_proxy65: Reviewed and re-factored the code, added proxy_address to specify the address which the proxy advertises for clients to connect to
Matthew Wild <mwild1@gmail.com>
parents: 66
diff changeset
202 error("mod_proxy65: Could not establish a connection listener. Check your configuration please.");
73
adb9d1b879c2 mod_proxy65: changed the listener name to be unique on a per component basis and display a good error description when connlistener register fails
Thilo Cestonaro <thilo@cestona.ro>
parents: 72
diff changeset
203 error(" one possible cause for this would be that two proxy65 components share the same port.");
64
853c3c7e9936 mod_proxy65: remove the proxy65 folder
Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
204 end
853c3c7e9936 mod_proxy65: remove the proxy65 folder
Thilo Cestonaro <thilo@cestona.ro>
parents:
diff changeset
205
74
d70813f7d90a mod_proxy65: make it work again
Thilo Cestonaro <thilo@cestona.ro>
parents: 73
diff changeset
206 connlisteners.start(module.host .. ':proxy65');
72
2bf6c7c590a1 mod_proxy65: component register and deregister are with "_component" appended
Thilo Cestonaro <thilo@cestona.ro>
parents: 70
diff changeset
207 component = componentmanager.register_component(host, handle_to_domain);