prosody
cf924f587410
plugins/mod_bosh.lua

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plugins/mod_bosh.lua @ 2484:cf924f587410

mod_bosh: Support for cross-domain access control using CORS
author Matthew Wild <mwild1@gmail.com>
date Thu, 21 Jan 2010 15:07:52 +0000
parent 2473:3f4cfa375bd6
child 2485:ace62f19076d
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1522
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diff changeset
1 -- Prosody IM
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2 -- Copyright (C) 2008-2009 Matthew Wild
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3 -- Copyright (C) 2008-2009 Waqas Hussain
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4 --
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9 module.host = "*" -- Global module
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10
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11 local hosts = _G.hosts;
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12 local lxp = require "lxp";
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13 local init_xmlhandlers = require "core.xmlhandlers"
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14 local server = require "net.server";
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15 local httpserver = require "net.httpserver";
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16 local sm = require "core.sessionmanager";
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17 local sm_destroy_session = sm.destroy_session;
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18 local new_uuid = require "util.uuid".generate;
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19 local fire_event = require "core.eventmanager".fire_event;
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20 local core_process_stanza = core_process_stanza;
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21 local st = require "util.stanza";
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22 local logger = require "util.logger";
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23 local log = logger.init("mod_bosh");
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24
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25 local xmlns_bosh = "http://jabber.org/protocol/httpbind"; -- (hard-coded into a literal in session.send)
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26 local stream_callbacks = { stream_ns = "http://jabber.org/protocol/httpbind", stream_tag = "body", default_ns = xmlns_bosh };
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28 local BOSH_DEFAULT_HOLD = tonumber(module:get_option("bosh_default_hold")) or 1;
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29 local BOSH_DEFAULT_INACTIVITY = tonumber(module:get_option("bosh_max_inactivity")) or 60;
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30 local BOSH_DEFAULT_POLLING = tonumber(module:get_option("bosh_max_polling")) or 5;
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31 local BOSH_DEFAULT_REQUESTS = tonumber(module:get_option("bosh_max_requests")) or 2;
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32 local BOSH_DEFAULT_MAXPAUSE = tonumber(module:get_option("bosh_max_pause")) or 300;
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33
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34 local default_headers = { ["Content-Type"] = "text/xml; charset=utf-8" };
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35 local session_close_reply = { headers = default_headers, body = st.stanza("body", { xmlns = xmlns_bosh, type = "terminate" }), attr = {} };
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36
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37 local http_options, http_denied_options = { headers = {} }, { headers = {} };
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38 local cross_domain = module:get_option("cross_domain_bosh");
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39 if cross_domain ~= false then
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40 http_options.headers["Access-Control-Allow-Methods"] = "GET, POST, OPTIONS";
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41 http_options.headers["Access-Control-Allow-Headers"] = "Content-Type";
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42 http_options.headers["Access-Control-Max-Age"] = "86400";
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43
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44 if cross_domain == true then
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45 http_options.headers["Access-Control-Allow-Origin"] = "*";
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46 elseif type(cross_domain) == "table" then
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47 cross_domain = table.concat(cross_domain, ", ");
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48 end
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49 if type(cross_domain) == "string" then
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50 http_options.headers["Access-Control-Allow-Origin"] = cross_domain;
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51 end
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52 end
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53
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54 local t_insert, t_remove, t_concat = table.insert, table.remove, table.concat;
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55 local os_time = os.time;
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56
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57 local sessions = {};
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58 local inactive_sessions = {}; -- Sessions which have no open requests
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59
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60 -- Used to respond to idle sessions (those with waiting requests)
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61 local waiting_requests = {};
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62 function on_destroy_request(request)
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63 waiting_requests[request] = nil;
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64 local session = sessions[request.sid];
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65 if session then
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66 local requests = session.requests;
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67 for i,r in pairs(requests) do
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68 if r == request then requests[i] = nil; break; end
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69 end
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70
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71 -- If this session now has no requests open, mark it as inactive
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72 if #requests == 0 and session.bosh_max_inactive and not inactive_sessions[session] then
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73 inactive_sessions[session] = os_time();
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74 (session.log or log)("debug", "BOSH session marked as inactive at %d", inactive_sessions[session]);
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75 end
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76 end
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77 end
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78
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79 local function send_options_headers(request)
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80 if cross_domain == nil then
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81 local host = request.headers.host and request.headers.host:match("^[^:]+");
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82 if hosts[host] then
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83 http_options.headers["Access-Control-Allow-Origin"] = "http://"..host;
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84 else
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85 return http_denied_options; -- We don't want to reveal the hosts we serve
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86 end
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87 end
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88 return http_options;
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89 end
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90
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91 function handle_request(method, body, request)
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92 if (not body) or request.method ~= "POST" then
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93 if request.method == "OPTIONS" then
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94 return send_options_headers(request);
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95 else
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96 return "<html><body>You really don't look like a BOSH client to me... what do you want?</body></html>";
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97 end
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98 end
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99 if not method then
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100 log("debug", "Request %s suffered error %s", tostring(request.id), body);
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101 return;
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102 end
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103 --log("debug", "Handling new request %s: %s\n----------", request.id, tostring(body));
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104 request.notopen = true;
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105 request.log = log;
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106 local parser = lxp.new(init_xmlhandlers(request, stream_callbacks), "\1");
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107
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108 parser:parse(body);
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109
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110 local session = sessions[request.sid];
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111 if session then
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112 local r = session.requests;
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113 log("debug", "Session %s has %d out of %d requests open", request.sid, #r, session.bosh_hold);
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114 log("debug", "and there are %d things in the send_buffer", #session.send_buffer);
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115 if #r > session.bosh_hold then
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116 -- We are holding too many requests, send what's in the buffer,
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117 log("debug", "We are holding too many requests, so...");
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118 if #session.send_buffer > 0 then
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119 log("debug", "...sending what is in the buffer")
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120 session.send(t_concat(session.send_buffer));
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121 session.send_buffer = {};
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122 else
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123 -- or an empty response
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124 log("debug", "...sending an empty response");
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125 session.send("");
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126 end
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127 elseif #session.send_buffer > 0 then
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128 log("debug", "Session has data in the send buffer, will send now..");
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129 local resp = t_concat(session.send_buffer);
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130 session.send_buffer = {};
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
131 session.send(resp);
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
132 end
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
133
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
134 if not request.destroyed and session.bosh_wait then
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
135 request.reply_before = os_time() + session.bosh_wait;
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
136 request.on_destroy = on_destroy_request;
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
137 waiting_requests[request] = true;
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
138 end
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
139
771
ecdf72f9b085 Remove redundant logging and debug printing from mod_bosh
Matthew Wild <mwild1@gmail.com>
parents: 763
diff changeset
140 log("debug", "Have nothing to say, so leaving request unanswered for now");
636
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
141 return true;
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
142 end
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
143 end
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
144
684
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
Matthew Wild <mwild1@gmail.com>
parents: 683
diff changeset
145
636
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
146 local function bosh_reset_stream(session) session.notopen = true; end
684
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
Matthew Wild <mwild1@gmail.com>
parents: 683
diff changeset
147
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
Matthew Wild <mwild1@gmail.com>
parents: 683
diff changeset
148 local function bosh_close_stream(session, reason)
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
Matthew Wild <mwild1@gmail.com>
parents: 683
diff changeset
149 (session.log or log)("info", "BOSH client disconnected");
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
Matthew Wild <mwild1@gmail.com>
parents: 683
diff changeset
150 session_close_reply.attr.condition = reason;
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
Matthew Wild <mwild1@gmail.com>
parents: 683
diff changeset
151 for _, held_request in ipairs(session.requests) do
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
Matthew Wild <mwild1@gmail.com>
parents: 683
diff changeset
152 held_request:send(session_close_reply);
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
Matthew Wild <mwild1@gmail.com>
parents: 683
diff changeset
153 held_request:destroy();
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
Matthew Wild <mwild1@gmail.com>
parents: 683
diff changeset
154 end
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
Matthew Wild <mwild1@gmail.com>
parents: 683
diff changeset
155 sessions[session.sid] = nil;
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
Matthew Wild <mwild1@gmail.com>
parents: 683
diff changeset
156 sm_destroy_session(session);
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
Matthew Wild <mwild1@gmail.com>
parents: 683
diff changeset
157 end
636
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
158
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
159 function stream_callbacks.streamopened(request, attr)
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
160 log("debug", "BOSH body open (sid: %s)", attr.sid);
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
161 local sid = attr.sid
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
162 if not sid then
679
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
Matthew Wild <mwild1@gmail.com>
parents: 660
diff changeset
163 -- New session request
684
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
Matthew Wild <mwild1@gmail.com>
parents: 683
diff changeset
164 request.notopen = nil; -- Signals that we accept this opening tag
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
Matthew Wild <mwild1@gmail.com>
parents: 683
diff changeset
165
636
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
166 -- TODO: Sanity checks here (rid, to, known host, etc.)
684
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
Matthew Wild <mwild1@gmail.com>
parents: 683
diff changeset
167 if not hosts[attr.to] then
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
Matthew Wild <mwild1@gmail.com>
parents: 683
diff changeset
168 -- Unknown host
1048
45fc590539cd mod_bosh: Add log message for clients connecting to unknown host
Matthew Wild <mwild1@gmail.com>
parents: 1047
diff changeset
169 log("debug", "BOSH client tried to connect to unknown host: %s", tostring(attr.to));
1633
7812459eeed7 mod_bosh: Fix error reply for host-unknown errors
Matthew Wild <mwild1@gmail.com>
parents: 1551
diff changeset
170 session_close_reply.body.attr.condition = "host-unknown";
7812459eeed7 mod_bosh: Fix error reply for host-unknown errors
Matthew Wild <mwild1@gmail.com>
parents: 1551
diff changeset
171 request:send(session_close_reply);
684
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
Matthew Wild <mwild1@gmail.com>
parents: 683
diff changeset
172 request.notopen = nil
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
Matthew Wild <mwild1@gmail.com>
parents: 683
diff changeset
173 return;
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
Matthew Wild <mwild1@gmail.com>
parents: 683
diff changeset
174 end
636
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
175
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
176 -- New session
763
8e77a39826c2 mod_bosh: No need to tostring() uuids now
Matthew Wild <mwild1@gmail.com>
parents: 725
diff changeset
177 sid = new_uuid();
1663
b30c4d0bbe84 mod_bosh: Basic handling of rids (more to come)
Matthew Wild <mwild1@gmail.com>
parents: 1662
diff changeset
178 local session = { type = "c2s_unauthed", conn = {}, sid = sid, rid = tonumber(attr.rid), host = attr.to, bosh_version = attr.ver, bosh_wait = attr.wait, streamid = sid,
679
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
Matthew Wild <mwild1@gmail.com>
parents: 660
diff changeset
179 bosh_hold = BOSH_DEFAULT_HOLD, bosh_max_inactive = BOSH_DEFAULT_INACTIVITY,
1109
bb21eb3cd364 mod_bosh: Give BOSH sessions a logger (thanks Florob)
Matthew Wild <mwild1@gmail.com>
parents: 1049
diff changeset
180 requests = { }, send_buffer = {}, reset_stream = bosh_reset_stream, close = bosh_close_stream,
1541
591732da1306 mod_bosh: Mark a session as secure if it is created with HTTPS
Matthew Wild <mwild1@gmail.com>
parents: 1537
diff changeset
181 dispatch_stanza = core_process_stanza, log = logger.init("bosh"..sid), secure = request.secure };
636
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
182 sessions[sid] = session;
1109
bb21eb3cd364 mod_bosh: Give BOSH sessions a logger (thanks Florob)
Matthew Wild <mwild1@gmail.com>
parents: 1049
diff changeset
183
636
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
184 log("info", "New BOSH session, assigned it sid '%s'", sid);
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
185 local r, send_buffer = session.requests, session.send_buffer;
866
8958fe4b2391 mod_bosh: Set Content-Type in response headers
Matthew Wild <mwild1@gmail.com>
parents: 816
diff changeset
186 local response = { headers = default_headers }
636
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
187 function session.send(s)
2099
73e083d01449 mod_bosh: Don't log response XML
Matthew Wild <mwild1@gmail.com>
parents: 2084
diff changeset
188 --log("debug", "Sending BOSH data: %s", tostring(s));
636
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
189 local oldest_request = r[1];
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
190 while oldest_request and oldest_request.destroyed do
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
191 t_remove(r, 1);
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
192 waiting_requests[oldest_request] = nil;
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
193 oldest_request = r[1];
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
194 end
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
195 if oldest_request then
2099
73e083d01449 mod_bosh: Don't log response XML
Matthew Wild <mwild1@gmail.com>
parents: 2084
diff changeset
196 log("debug", "We have an open request, so sending on that");
636
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
197 response.body = t_concat{"<body xmlns='http://jabber.org/protocol/httpbind' sid='", sid, "' xmlns:stream = 'http://etherx.jabber.org/streams'>", tostring(s), "</body>" };
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
198 oldest_request:send(response);
771
ecdf72f9b085 Remove redundant logging and debug printing from mod_bosh
Matthew Wild <mwild1@gmail.com>
parents: 763
diff changeset
199 --log("debug", "Sent");
636
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
200 if oldest_request.stayopen then
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
201 if #r>1 then
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
202 -- Move front request to back
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
203 t_insert(r, oldest_request);
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
204 t_remove(r, 1);
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
205 end
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
206 else
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
207 log("debug", "Destroying the request now...");
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
208 oldest_request:destroy();
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
209 t_remove(r, 1);
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
210 end
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
211 elseif s ~= "" then
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
212 log("debug", "Saved to send buffer because there are %d open requests", #r);
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
213 -- Hmm, no requests are open :(
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
214 t_insert(session.send_buffer, tostring(s));
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
215 log("debug", "There are now %d things in the send_buffer", #session.send_buffer);
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
216 end
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
217 end
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
218
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
219 -- Send creation response
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
220
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
221 local features = st.stanza("stream:features");
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
222 fire_event("stream-features", session, features);
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
223 --xmpp:version='1.0' xmlns:xmpp='urn:xmpp:xbosh'
2473
3f4cfa375bd6 mod_bosh: Trailing whitespace
Matthew Wild <mwild1@gmail.com>
parents: 2467
diff changeset
224 local response = st.stanza("body", { xmlns = xmlns_bosh,
3f4cfa375bd6 mod_bosh: Trailing whitespace
Matthew Wild <mwild1@gmail.com>
parents: 2467
diff changeset
225 inactivity = tostring(BOSH_DEFAULT_INACTIVITY), polling = tostring(BOSH_DEFAULT_POLLING), requests = tostring(BOSH_DEFAULT_REQUESTS), hold = tostring(session.bosh_hold), maxpause = "120",
3f4cfa375bd6 mod_bosh: Trailing whitespace
Matthew Wild <mwild1@gmail.com>
parents: 2467
diff changeset
226 sid = sid, authid = sid, ver = '1.6', from = session.host, secure = 'true', ["xmpp:version"] = "1.0",
636
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
227 ["xmlns:xmpp"] = "urn:xmpp:xbosh", ["xmlns:stream"] = "http://etherx.jabber.org/streams" }):add_child(features);
866
8958fe4b2391 mod_bosh: Set Content-Type in response headers
Matthew Wild <mwild1@gmail.com>
parents: 816
diff changeset
228 request:send{ headers = default_headers, body = tostring(response) };
2473
3f4cfa375bd6 mod_bosh: Trailing whitespace
Matthew Wild <mwild1@gmail.com>
parents: 2467
diff changeset
229
636
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
230 request.sid = sid;
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
231 return;
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
232 end
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
233
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
234 local session = sessions[sid];
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
235 if not session then
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
236 -- Unknown sid
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
237 log("info", "Client tried to use sid '%s' which we don't know about", sid);
866
8958fe4b2391 mod_bosh: Set Content-Type in response headers
Matthew Wild <mwild1@gmail.com>
parents: 816
diff changeset
238 request:send{ headers = default_headers, body = tostring(st.stanza("body", { xmlns = xmlns_bosh, type = "terminate", condition = "item-not-found" })) };
636
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
239 request.notopen = nil;
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
240 return;
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
241 end
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
242
1663
b30c4d0bbe84 mod_bosh: Basic handling of rids (more to come)
Matthew Wild <mwild1@gmail.com>
parents: 1662
diff changeset
243 if session.rid then
b30c4d0bbe84 mod_bosh: Basic handling of rids (more to come)
Matthew Wild <mwild1@gmail.com>
parents: 1662
diff changeset
244 local rid = tonumber(attr.rid);
1664
6587b6c2678e mod_bosh: Calculate rid difference just once
Matthew Wild <mwild1@gmail.com>
parents: 1663
diff changeset
245 local diff = rid - session.rid;
6587b6c2678e mod_bosh: Calculate rid difference just once
Matthew Wild <mwild1@gmail.com>
parents: 1663
diff changeset
246 if diff > 1 then
1663
b30c4d0bbe84 mod_bosh: Basic handling of rids (more to come)
Matthew Wild <mwild1@gmail.com>
parents: 1662
diff changeset
247 session.log("warn", "rid too large (means a request was lost). Last rid: %d New rid: %s", session.rid, attr.rid);
1664
6587b6c2678e mod_bosh: Calculate rid difference just once
Matthew Wild <mwild1@gmail.com>
parents: 1663
diff changeset
248 elseif diff <= 0 then
1663
b30c4d0bbe84 mod_bosh: Basic handling of rids (more to come)
Matthew Wild <mwild1@gmail.com>
parents: 1662
diff changeset
249 -- Repeated, ignore
b30c4d0bbe84 mod_bosh: Basic handling of rids (more to come)
Matthew Wild <mwild1@gmail.com>
parents: 1662
diff changeset
250 session.log("debug", "rid repeated (on request %s), ignoring: %d", request.id, session.rid);
b30c4d0bbe84 mod_bosh: Basic handling of rids (more to come)
Matthew Wild <mwild1@gmail.com>
parents: 1662
diff changeset
251 request.notopen = nil;
b30c4d0bbe84 mod_bosh: Basic handling of rids (more to come)
Matthew Wild <mwild1@gmail.com>
parents: 1662
diff changeset
252 t_insert(session.requests, request);
b30c4d0bbe84 mod_bosh: Basic handling of rids (more to come)
Matthew Wild <mwild1@gmail.com>
parents: 1662
diff changeset
253 return;
b30c4d0bbe84 mod_bosh: Basic handling of rids (more to come)
Matthew Wild <mwild1@gmail.com>
parents: 1662
diff changeset
254 end
b30c4d0bbe84 mod_bosh: Basic handling of rids (more to come)
Matthew Wild <mwild1@gmail.com>
parents: 1662
diff changeset
255 session.rid = rid;
b30c4d0bbe84 mod_bosh: Basic handling of rids (more to come)
Matthew Wild <mwild1@gmail.com>
parents: 1662
diff changeset
256 end
b30c4d0bbe84 mod_bosh: Basic handling of rids (more to come)
Matthew Wild <mwild1@gmail.com>
parents: 1662
diff changeset
257
679
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
Matthew Wild <mwild1@gmail.com>
parents: 660
diff changeset
258 if attr.type == "terminate" then
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
Matthew Wild <mwild1@gmail.com>
parents: 660
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259 -- Client wants to end this session
684
b7d85c6a0002 Implement session:close() for BOSH, and add checking for attempts to connect to hosts we don't serve
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parents: 683
diff changeset
260 session:close();
679
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
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parents: 660
diff changeset
261 request.notopen = nil;
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
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parents: 660
diff changeset
262 return;
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
Matthew Wild <mwild1@gmail.com>
parents: 660
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263 end
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
Matthew Wild <mwild1@gmail.com>
parents: 660
diff changeset
264
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
Matthew Wild <mwild1@gmail.com>
parents: 660
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265 -- If session was inactive, make sure it is now marked as not
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
Matthew Wild <mwild1@gmail.com>
parents: 660
diff changeset
266 if #session.requests == 0 then
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
Matthew Wild <mwild1@gmail.com>
parents: 660
diff changeset
267 (session.log or log)("debug", "BOSH client now active again at %d", os_time());
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
Matthew Wild <mwild1@gmail.com>
parents: 660
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268 inactive_sessions[session] = nil;
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
Matthew Wild <mwild1@gmail.com>
parents: 660
diff changeset
269 end
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
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parents: 660
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270
636
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
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parents:
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271 if session.notopen then
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
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parents:
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272 local features = st.stanza("stream:features");
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parents:
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273 fire_event("stream-features", session, features);
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parents:
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274 session.send(features);
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parents:
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275 session.notopen = nil;
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parents:
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276 end
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parents:
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277
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parents:
diff changeset
278 request.notopen = nil; -- Signals that we accept this opening tag
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
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parents:
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279 t_insert(session.requests, request);
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
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parents:
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280 request.sid = sid;
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
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281 end
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parents:
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282
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
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283 function stream_callbacks.handlestanza(request, stanza)
725
96110075288b Replacing pretty_print() with top_tag() for logging
Matthew Wild <mwild1@gmail.com>
parents: 701
diff changeset
284 log("debug", "BOSH stanza received: %s\n", stanza:top_tag());
636
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
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parents:
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285 local session = sessions[request.sid];
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
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parents:
diff changeset
286 if session then
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
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parents:
diff changeset
287 if stanza.attr.xmlns == xmlns_bosh then
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
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parents:
diff changeset
288 stanza.attr.xmlns = "jabber:client";
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parents:
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289 end
2373
13090fc6ad90 mod_bosh: Update for new connection API
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parents: 2354
diff changeset
290 session.ip = request.handler:ip();
636
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
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parents:
diff changeset
291 core_process_stanza(session, stanza);
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
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parents:
diff changeset
292 end
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
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parents:
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293 end
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parents:
diff changeset
294
1864
b9389286eece mod_bosh: Fix for 'invalid key to next' error when 2 clients lose connection at the same time
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parents: 1633
diff changeset
295 local dead_sessions = {};
636
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
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parents:
diff changeset
296 function on_timer()
660
b2c4a7ec31c6 Remove some old debugging code from mod_bosh
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parents: 636
diff changeset
297 -- log("debug", "Checking for requests soon to timeout...");
636
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parents:
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298 -- Identify requests timing out within the next few seconds
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parents:
diff changeset
299 local now = os_time() + 3;
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
300 for request in pairs(waiting_requests) do
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
301 if request.reply_before <= now then
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
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parents:
diff changeset
302 log("debug", "%s was soon to timeout, sending empty response", request.id);
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parents:
diff changeset
303 -- Send empty response to let the
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
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parents:
diff changeset
304 -- client know we're still here
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
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parents:
diff changeset
305 if request.conn then
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
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parents:
diff changeset
306 sessions[request.sid].send("");
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parents:
diff changeset
307 end
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
308 end
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
309 end
679
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
Matthew Wild <mwild1@gmail.com>
parents: 660
diff changeset
310
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
Matthew Wild <mwild1@gmail.com>
parents: 660
diff changeset
311 now = now - 3;
1864
b9389286eece mod_bosh: Fix for 'invalid key to next' error when 2 clients lose connection at the same time
Matthew Wild <mwild1@gmail.com>
parents: 1633
diff changeset
312 local n_dead_sessions = 0;
679
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
Matthew Wild <mwild1@gmail.com>
parents: 660
diff changeset
313 for session, inactive_since in pairs(inactive_sessions) do
692
4a218377f4e3 BOSH: Fix for error when closed session was in inactive_sessions list
Matthew Wild <mwild1@gmail.com>
parents: 684
diff changeset
314 if session.bosh_max_inactive then
4a218377f4e3 BOSH: Fix for error when closed session was in inactive_sessions list
Matthew Wild <mwild1@gmail.com>
parents: 684
diff changeset
315 if now - inactive_since > session.bosh_max_inactive then
4a218377f4e3 BOSH: Fix for error when closed session was in inactive_sessions list
Matthew Wild <mwild1@gmail.com>
parents: 684
diff changeset
316 (session.log or log)("debug", "BOSH client inactive too long, destroying session at %d", now);
4a218377f4e3 BOSH: Fix for error when closed session was in inactive_sessions list
Matthew Wild <mwild1@gmail.com>
parents: 684
diff changeset
317 sessions[session.sid] = nil;
4a218377f4e3 BOSH: Fix for error when closed session was in inactive_sessions list
Matthew Wild <mwild1@gmail.com>
parents: 684
diff changeset
318 inactive_sessions[session] = nil;
1864
b9389286eece mod_bosh: Fix for 'invalid key to next' error when 2 clients lose connection at the same time
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parents: 1633
diff changeset
319 n_dead_sessions = n_dead_sessions + 1;
b9389286eece mod_bosh: Fix for 'invalid key to next' error when 2 clients lose connection at the same time
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parents: 1633
diff changeset
320 dead_sessions[n_dead_sessions] = session;
692
4a218377f4e3 BOSH: Fix for error when closed session was in inactive_sessions list
Matthew Wild <mwild1@gmail.com>
parents: 684
diff changeset
321 end
693
d8b793e612a9 BOSH: Make previous fix a bit more efficient
Matthew Wild <mwild1@gmail.com>
parents: 692
diff changeset
322 else
679
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
Matthew Wild <mwild1@gmail.com>
parents: 660
diff changeset
323 inactive_sessions[session] = nil;
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
Matthew Wild <mwild1@gmail.com>
parents: 660
diff changeset
324 end
9506bf204b1a Numerous BOSH improvements... handle client disconnects, either explicit or implicit through inactivity; allow specifying BOSH default parameters through config; fix to prevent prematurely closing request connections in some cases, before they were replied to
Matthew Wild <mwild1@gmail.com>
parents: 660
diff changeset
325 end
1864
b9389286eece mod_bosh: Fix for 'invalid key to next' error when 2 clients lose connection at the same time
Matthew Wild <mwild1@gmail.com>
parents: 1633
diff changeset
326
b9389286eece mod_bosh: Fix for 'invalid key to next' error when 2 clients lose connection at the same time
Matthew Wild <mwild1@gmail.com>
parents: 1633
diff changeset
327 for i=1,n_dead_sessions do
b9389286eece mod_bosh: Fix for 'invalid key to next' error when 2 clients lose connection at the same time
Matthew Wild <mwild1@gmail.com>
parents: 1633
diff changeset
328 local session = dead_sessions[i];
b9389286eece mod_bosh: Fix for 'invalid key to next' error when 2 clients lose connection at the same time
Matthew Wild <mwild1@gmail.com>
parents: 1633
diff changeset
329 dead_sessions[i] = nil;
b9389286eece mod_bosh: Fix for 'invalid key to next' error when 2 clients lose connection at the same time
Matthew Wild <mwild1@gmail.com>
parents: 1633
diff changeset
330 sm_destroy_session(session, "BOSH client silent for over "..session.bosh_max_inactive.." seconds");
b9389286eece mod_bosh: Fix for 'invalid key to next' error when 2 clients lose connection at the same time
Matthew Wild <mwild1@gmail.com>
parents: 1633
diff changeset
331 end
636
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
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parents:
diff changeset
332 end
9c9c671ecc50 Initial mod_bosh, works, kind of, but quite incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
333
701
dc67e3cffff4 BOSH: Allow BOSH servers to be configured through config file
Matthew Wild <mwild1@gmail.com>
parents: 693
diff changeset
334
2354
5a00668ba0ab mod_bosh: Delay setup until after server is started.
Waqas Hussain <waqas20@gmail.com>
parents: 2099
diff changeset
335 local function setup()
5a00668ba0ab mod_bosh: Delay setup until after server is started.
Waqas Hussain <waqas20@gmail.com>
parents: 2099
diff changeset
336 local ports = module:get_option("bosh_ports") or { 5280 };
5a00668ba0ab mod_bosh: Delay setup until after server is started.
Waqas Hussain <waqas20@gmail.com>
parents: 2099
diff changeset
337 httpserver.new_from_config(ports, handle_request, { base = "http-bind" });
5a00668ba0ab mod_bosh: Delay setup until after server is started.
Waqas Hussain <waqas20@gmail.com>
parents: 2099
diff changeset
338 server.addtimer(on_timer);
5a00668ba0ab mod_bosh: Delay setup until after server is started.
Waqas Hussain <waqas20@gmail.com>
parents: 2099
diff changeset
339 end
5a00668ba0ab mod_bosh: Delay setup until after server is started.
Waqas Hussain <waqas20@gmail.com>
parents: 2099
diff changeset
340 if prosody.start_time then -- already started
5a00668ba0ab mod_bosh: Delay setup until after server is started.
Waqas Hussain <waqas20@gmail.com>
parents: 2099
diff changeset
341 setup();
5a00668ba0ab mod_bosh: Delay setup until after server is started.
Waqas Hussain <waqas20@gmail.com>
parents: 2099
diff changeset
342 else
5a00668ba0ab mod_bosh: Delay setup until after server is started.
Waqas Hussain <waqas20@gmail.com>
parents: 2099
diff changeset
343 prosody.events.add_handler("server-started", setup);
5a00668ba0ab mod_bosh: Delay setup until after server is started.
Waqas Hussain <waqas20@gmail.com>
parents: 2099
diff changeset
344 end