Mercurial > prosody-modules

annotate mod_websocket/mod_websocket.lua @ 882:4939788a47ea

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mod_vjud: Disallow searching from remote hosts by default in search-all-users mode
author Kim Alvefur <zash@zash.se>
date Sun, 16 Dec 2012 12:51:34 +0100
parents 1393af36ec9c
children 1f4d77104da5
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 -- Copyright (C) 2012 Florian Zeitz
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5 --
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6 -- This project is MIT/X11 licensed. Please see the
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7 -- COPYING file in the source package for more information.
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8 --
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9
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10 module:set_global();
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12 local add_task = require "util.timer".add_task;
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13 local new_xmpp_stream = require "util.xmppstream".new;
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14 local nameprep = require "util.encodings".stringprep.nameprep;
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15 local sessionmanager = require "core.sessionmanager";
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16 local st = require "util.stanza";
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17 local sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session;
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18 local uuid_generate = require "util.uuid".generate;
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19 local sha1 = require "util.hashes".sha1;
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20 local base64 = require "util.encodings".base64.encode;
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21 local band = require "bit".band;
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22 local bxor = require "bit".bxor;
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23
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24 local xpcall, tostring, type = xpcall, tostring, type;
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25 local traceback = debug.traceback;
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27 local xmlns_xmpp_streams = "urn:ietf:params:xml:ns:xmpp-streams";
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29 local log = module._log;
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31 local c2s_timeout = module:get_option_number("c2s_timeout");
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32 local stream_close_timeout = module:get_option_number("c2s_close_timeout", 5);
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33 local opt_keepalives = module:get_option_boolean("tcp_keepalives", false);
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34
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35 local cross_domain = module:get_option("cross_domain_websocket");
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36 if cross_domain then
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37 if cross_domain == true then
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38 cross_domain = "*";
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39 elseif type(cross_domain) == "table" then
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40 cross_domain = table.concat(cross_domain, ", ");
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41 end
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42 if type(cross_domain) ~= "string" then
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43 cross_domain = nil;
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44 end
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45 end
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46
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47 local sessions = module:shared("sessions");
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48 local core_process_stanza = prosody.core_process_stanza;
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49
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50 local stream_callbacks = { default_ns = "jabber:client", handlestanza = core_process_stanza };
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51 local listener = {};
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52
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53 -- Websocket helpers
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54 local function parse_frame(frame)
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55 local result = {};
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56 local pos = 1;
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57 local length_bytes = 0;
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58 local counter = 0;
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59 local tmp_byte;
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60
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61 if #frame < 2 then return; end
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62
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63 tmp_byte = string.byte(frame, pos);
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64 result.FIN = band(tmp_byte, 0x80) > 0;
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65 result.RSV1 = band(tmp_byte, 0x40) > 0;
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66 result.RSV2 = band(tmp_byte, 0x20) > 0;
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67 result.RSV3 = band(tmp_byte, 0x10) > 0;
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68 result.opcode = band(tmp_byte, 0x0F);
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69
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70 pos = pos + 1;
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71 tmp_byte = string.byte(frame, pos);
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72 result.MASK = band(tmp_byte, 0x80) > 0;
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73 result.length = band(tmp_byte, 0x7F);
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74
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75 if result.length == 126 then
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76 length_bytes = 2;
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77 result.length = 0;
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78 elseif result.length == 127 then
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79 length_bytes = 8;
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80 result.length = 0;
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81 end
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82
842
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83 if #frame < (2 + length_bytes) then return; end
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84
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85 for i = 1, length_bytes do
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86 pos = pos + 1;
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87 result.length = result.length * 256 + string.byte(frame, pos);
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88 end
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89
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90 if #frame < (2 + length_bytes + (result.MASK and 4 or 0) + result.length) then return; end
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91
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92 if result.MASK then
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93 result.key = {string.byte(frame, pos+1), string.byte(frame, pos+2),
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94 string.byte(frame, pos+3), string.byte(frame, pos+4)}
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95
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96 pos = pos + 5;
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97 result.data = "";
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98 for i = pos, pos + result.length - 1 do
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99 result.data = result.data .. string.char(bxor(result.key[counter+1], string.byte(frame, i)));
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100 counter = (counter + 1) % 4;
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101 end
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102 else
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103 result.data = frame:sub(pos + 1, pos + result.length);
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104 end
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105
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106 return result, 2 + length_bytes + (result.MASK and 4 or 0) + result.length;
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107 end
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108
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109 local function build_frame(desc)
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110 local length;
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111 local result = "";
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112 local data = desc.data or "";
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113
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114 result = result .. string.char(0x80 * (desc.FIN and 1 or 0) + desc.opcode);
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115
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116 length = #data;
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117 if length <= 125 then -- 7-bit length
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118 result = result .. string.char(length);
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119 elseif length <= 0xFFFF then -- 2-byte length
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120 result = result .. string.char(126);
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121 result = result .. string.char(length/0x100) .. string.char(length%0x100);
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122 else -- 8-byte length
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123 result = result .. string.char(127);
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124 for i = 7, 0, -1 do
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125 result = result .. string.char(( length / (2^(8*i)) ) % 0x100);
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126 end
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127 end
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128
842
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129 result = result .. data;
687
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130
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131 return result;
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132 end
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133
676
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134 --- Stream events handlers
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135 local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'};
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136 local default_stream_attr = { ["xmlns:stream"] = "http://etherx.jabber.org/streams", xmlns = stream_callbacks.default_ns, version = "1.0", id = "" };
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137
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138 function stream_callbacks.streamopened(session, attr)
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139 local send = session.send;
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140 session.host = nameprep(attr.to);
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141 if not session.host then
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142 session:close{ condition = "improper-addressing",
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143 text = "A valid 'to' attribute is required on stream headers" };
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144 return;
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145 end
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146 session.version = tonumber(attr.version) or 0;
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147 session.streamid = uuid_generate();
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148 (session.log or session)("debug", "Client sent opening <stream:stream> to %s", session.host);
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149
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150 if not hosts[session.host] then
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151 -- We don't serve this host...
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152 session:close{ condition = "host-unknown", text = "This server does not serve "..tostring(session.host)};
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153 return;
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154 end
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155
857
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156 -- COMPAT: Some current client implementations need this to be self-closing
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157 if session.self_closing_stream then
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158 send("<?xml version='1.0'?>"..tostring(st.stanza("stream:stream", {
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159 xmlns = 'jabber:client', ["xmlns:stream"] = 'http://etherx.jabber.org/streams';
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160 id = session.streamid, from = session.host, version = '1.0', ["xml:lang"] = 'en' })));
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161 else
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162 send("<?xml version='1.0'?>"..st.stanza("stream:stream", {
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163 xmlns = 'jabber:client', ["xmlns:stream"] = 'http://etherx.jabber.org/streams';
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164 id = session.streamid, from = session.host, version = '1.0', ["xml:lang"] = 'en' }):top_tag());
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165 end
676
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166
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167 (session.log or log)("debug", "Sent reply <stream:stream> to client");
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168 session.notopen = nil;
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169
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170 -- If session.secure is *false* (not nil) then it means we /were/ encrypting
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171 -- since we now have a new stream header, session is secured
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172 if session.secure == false then
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173 session.secure = true;
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174 end
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175
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176 local features = st.stanza("stream:features");
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177 hosts[session.host].events.fire_event("stream-features", { origin = session, features = features });
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178 module:fire_event("stream-features", session, features);
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179
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180 send(features);
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181 end
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182
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183 function stream_callbacks.streamclosed(session)
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184 session.log("debug", "Received </stream:stream>");
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185 session:close(false);
676
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186 end
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diff changeset
187
129
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188 function stream_callbacks.error(session, error, data)
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189 if error == "no-stream" then
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190 session.log("debug", "Invalid opening stream header");
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191 session:close("invalid-namespace");
676
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192 elseif error == "parse-error" then
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193 (session.log or log)("debug", "Client XML parse error: %s", tostring(data));
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194 session:close("not-well-formed");
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195 elseif error == "stream-error" then
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diff changeset
196 local condition, text = "undefined-condition";
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197 for child in data:children() do
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diff changeset
198 if child.attr.xmlns == xmlns_xmpp_streams then
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diff changeset
199 if child.name ~= "text" then
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200 condition = child.name;
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diff changeset
201 else
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diff changeset
202 text = child:get_text();
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diff changeset
203 end
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diff changeset
204 if condition ~= "undefined-condition" and text then
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diff changeset
205 break;
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diff changeset
206 end
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diff changeset
207 end
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diff changeset
208 end
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209 text = condition .. (text and (" ("..text..")") or "");
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diff changeset
210 session.log("info", "Session closed by remote with error: %s", text);
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diff changeset
211 session:close(nil, text);
129
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212 end
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213 end
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214
676
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diff changeset
215 local function handleerr(err) log("error", "Traceback[c2s]: %s: %s", tostring(err), traceback()); end
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diff changeset
216 function stream_callbacks.handlestanza(session, stanza)
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diff changeset
217 stanza = session.filter("stanzas/in", stanza);
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diff changeset
218 if stanza then
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diff changeset
219 return xpcall(function () return core_process_stanza(session, stanza) end, handleerr);
129
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220 end
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parents:
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221 end
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parents:
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222
676
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diff changeset
223 --- Session methods
129
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224 local function session_close(session, reason)
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225 local log = session.log or log;
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226 if session.conn then
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227 if session.notopen then
857
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228 -- COMPAT: Some current client implementations need this to be self-closing
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229 if session.self_closing_stream then
692
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230 session.send("<?xml version='1.0'?>"..tostring(st.stanza("stream:stream", default_stream_attr)));
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231 else
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232 session.send("<?xml version='1.0'?>"..st.stanza("stream:stream", default_stream_attr):top_tag());
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233 end
129
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234 end
839
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235 if reason then -- nil == no err, initiated by us, false == initiated by client
129
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parents:
diff changeset
236 if type(reason) == "string" then -- assume stream error
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237 log("debug", "Disconnecting client, <stream:error> is: %s", reason);
129
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238 session.send(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' }));
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239 elseif type(reason) == "table" then
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diff changeset
240 if reason.condition then
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diff changeset
241 local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up();
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242 if reason.text then
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243 stanza:tag("text", stream_xmlns_attr):text(reason.text):up();
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244 end
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parents:
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245 if reason.extra then
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246 stanza:add_child(reason.extra);
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247 end
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248 log("debug", "Disconnecting client, <stream:error> is: %s", tostring(stanza));
129
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249 session.send(stanza);
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250 elseif reason.name then -- a stanza
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251 log("debug", "Disconnecting client, <stream:error> is: %s", tostring(reason));
129
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diff changeset
252 session.send(reason);
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253 end
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254 end
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255 end
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256 session.send("</stream:stream>");
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257 function session.send() return false; end
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258
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259 local reason = (reason and (reason.text or reason.condition)) or reason;
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260 session.log("info", "c2s stream for %s closed: %s", session.full_jid or ("<"..session.ip..">"), reason or "session closed");
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261
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262 -- Authenticated incoming stream may still be sending us stanzas, so wait for </stream:stream> from remote
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263 local conn = session.conn;
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264 if reason == nil and not session.notopen and session.type == "c2s" then
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265 -- Grace time to process data from authenticated cleanly-closed stream
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266 add_task(stream_close_timeout, function ()
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267 if not session.destroyed then
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268 session.log("warn", "Failed to receive a stream close response, closing connection anyway...");
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269 sm_destroy_session(session, reason);
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270 conn:close();
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271 end
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272 end);
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273 else
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274 sm_destroy_session(session, reason);
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275 conn:close();
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276 end
129
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277 end
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278 end
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279
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280 module:hook_global("user-deleted", function(event)
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281 local username, host = event.username, event.host;
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282 local user = hosts[host].sessions[username];
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283 if user and user.sessions then
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284 for jid, session in pairs(user.sessions) do
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285 session:close{ condition = "not-authorized", text = "Account deleted" };
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286 end
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287 end
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288 end, 200);
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289
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290 --- Port listener
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291 function listener.onconnect(conn)
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292 local session = sm_new_session(conn);
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diff changeset
293 sessions[conn] = session;
129
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294
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295 session.log("info", "Client connected");
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diff changeset
296
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diff changeset
297 -- Client is using legacy SSL (otherwise mod_tls sets this flag)
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diff changeset
298 if conn:ssl() then
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299 session.secure = true;
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diff changeset
300 end
129
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301
676
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diff changeset
302 if opt_keepalives then
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diff changeset
303 conn:setoption("keepalive", opt_keepalives);
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diff changeset
304 end
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diff changeset
305
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diff changeset
306 session.close = session_close;
129
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parents:
diff changeset
307
853
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diff changeset
308 session.conn.starttls = nil;
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309
676
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diff changeset
310 local stream = new_xmpp_stream(session, stream_callbacks);
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diff changeset
311 session.stream = stream;
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diff changeset
312 session.notopen = true;
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diff changeset
313
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diff changeset
314 function session.reset_stream()
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diff changeset
315 session.notopen = true;
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316 session.stream:reset();
129
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317 end
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318
842
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diff changeset
319 local function websocket_close(code, message)
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diff changeset
320 local data = string.char(code/0x100) .. string.char(code%0x100) .. message;
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diff changeset
321 conn:write(build_frame({opcode = 0x8, FIN = true, data = data}));
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322 conn:close();
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323 end
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diff changeset
324
676
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diff changeset
325 local filter = session.filter;
842
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diff changeset
326 local dataBuffer;
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diff changeset
327 local function handle_frame(frame)
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diff changeset
328 module:log("debug", "Websocket received: %s (%i bytes)", frame.data, #frame.data);
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diff changeset
329
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diff changeset
330 -- Error cases
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parents: 840
diff changeset
331 if frame.RSV1 or frame.RSV2 or frame.RSV3 then -- Reserved bits non zero
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parents: 840
diff changeset
332 websocket_close(1002, "Reserved bits not zero");
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parents: 840
diff changeset
333 return false;
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parents: 840
diff changeset
334 end
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parents: 840
diff changeset
335
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parents: 840
diff changeset
336 if frame.opcode >= 0x8 and frame.length > 125 then -- Control frame with too much payload
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parents: 840
diff changeset
337 websocket_close(1002, "Payload too large");
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parents: 840
diff changeset
338 return false;
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parents: 840
diff changeset
339 end
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parents: 840
diff changeset
340
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diff changeset
341 if frame.opcode >= 0x8 and not frame.FIN then -- Fragmented control frame
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parents: 840
diff changeset
342 websocket_close(1002, "Fragmented control frame");
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parents: 840
diff changeset
343 return false;
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parents: 840
diff changeset
344 end
690
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diff changeset
345
842
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diff changeset
346 if (frame.opcode > 0x2 and frame.opcode < 0x8) or (frame.opcode > 0xA) then
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parents: 840
diff changeset
347 websocket_close(1002, "Reserved opcode");
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parents: 840
diff changeset
348 return false;
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parents: 840
diff changeset
349 end
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parents: 840
diff changeset
350
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parents: 840
diff changeset
351 if frame.opcode == 0x0 and not dataBuffer then
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parents: 840
diff changeset
352 websocket_close(1002, "Unexpected continuation frame");
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parents: 840
diff changeset
353 return false;
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parents: 840
diff changeset
354 end
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parents: 840
diff changeset
355
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parents: 840
diff changeset
356 if (frame.opcode == 0x1 or frame.opcode == 0x2) and dataBuffer then
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diff changeset
357 websocket_close(1002, "Continuation frame expected");
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parents: 840
diff changeset
358 return false;
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parents: 840
diff changeset
359 end
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parents: 840
diff changeset
360
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parents: 840
diff changeset
361 -- Valid cases
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parents: 840
diff changeset
362 if frame.opcode == 0x0 then -- Continuation frame
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parents: 840
diff changeset
363 dataBuffer = dataBuffer .. frame.data;
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parents: 840
diff changeset
364 elseif frame.opcode == 0x1 then -- Text frame
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parents: 840
diff changeset
365 dataBuffer = frame.data;
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parents: 840
diff changeset
366 elseif frame.opcode == 0x2 then -- Binary frame
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parents: 840
diff changeset
367 websocket_close(1003, "Only text frames are supported");
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parents: 840
diff changeset
368 return false;
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parents: 840
diff changeset
369 elseif frame.opcode == 0x8 then -- Close request
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parents: 840
diff changeset
370 websocket_close(1000, "Goodbye");
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parents: 840
diff changeset
371 return false;
691
04662cc35280 mod_websocket: Answer ping frames
Florian Zeitz <florob@babelmonkeys.de>
parents: 690
diff changeset
372 elseif frame.opcode == 0x9 then -- Ping frame
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parents: 690
diff changeset
373 frame.opcode = 0xA;
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parents: 690
diff changeset
374 conn:write(build_frame(frame));
842
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diff changeset
375 return true;
690
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diff changeset
376 else
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diff changeset
377 log("warn", "Received frame with unsupported opcode %i", frame.opcode);
842
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diff changeset
378 return true;
690
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diff changeset
379 end
676
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diff changeset
380
690
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diff changeset
381 if frame.FIN then
842
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diff changeset
382 data = dataBuffer;
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diff changeset
383 dataBuffer = nil;
690
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diff changeset
384
857
1393af36ec9c mod_websocket: Determine whether to use a self-closing stream tag, based on the client's initial data
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parents: 856
diff changeset
385 -- COMPAT: Some current client implementations send a self-closing <stream:stream>
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parents: 856
diff changeset
386 data, session.self_closing_stream = data:gsub("^(<stream:stream.*)/>$", "%1>");
1393af36ec9c mod_websocket: Determine whether to use a self-closing stream tag, based on the client's initial data
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parents: 856
diff changeset
387 session.self_closing_stream = (session.self_closing_stream == 1)
690
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parents: 689
diff changeset
388
5acc203972f3 mod_websocket: Add fragmentation support
Florian Zeitz <florob@babelmonkeys.de>
parents: 689
diff changeset
389 data = filter("bytes/in", data);
5acc203972f3 mod_websocket: Add fragmentation support
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parents: 689
diff changeset
390 if data then
5acc203972f3 mod_websocket: Add fragmentation support
Florian Zeitz <florob@babelmonkeys.de>
parents: 689
diff changeset
391 local ok, err = stream:feed(data);
5acc203972f3 mod_websocket: Add fragmentation support
Florian Zeitz <florob@babelmonkeys.de>
parents: 689
diff changeset
392 if ok then return; end
5acc203972f3 mod_websocket: Add fragmentation support
Florian Zeitz <florob@babelmonkeys.de>
parents: 689
diff changeset
393 log("debug", "Received invalid XML (%s) %d bytes: %s", tostring(err), #data, data:sub(1, 300):gsub("[\r\n]+", " "):gsub("[%z\1-\31]", "_"));
5acc203972f3 mod_websocket: Add fragmentation support
Florian Zeitz <florob@babelmonkeys.de>
parents: 689
diff changeset
394 session:close("not-well-formed");
5acc203972f3 mod_websocket: Add fragmentation support
Florian Zeitz <florob@babelmonkeys.de>
parents: 689
diff changeset
395 end
676
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
396 end
842
32df4d13f178 mod_websocket: More robust frame handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 840
diff changeset
397 return true;
32df4d13f178 mod_websocket: More robust frame handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 840
diff changeset
398 end
32df4d13f178 mod_websocket: More robust frame handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 840
diff changeset
399
32df4d13f178 mod_websocket: More robust frame handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 840
diff changeset
400 local frameBuffer = "";
32df4d13f178 mod_websocket: More robust frame handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 840
diff changeset
401 function session.data(data)
32df4d13f178 mod_websocket: More robust frame handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 840
diff changeset
402 frameBuffer = frameBuffer .. data;
32df4d13f178 mod_websocket: More robust frame handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 840
diff changeset
403 local frame, length = parse_frame(frameBuffer);
32df4d13f178 mod_websocket: More robust frame handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 840
diff changeset
404
32df4d13f178 mod_websocket: More robust frame handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 840
diff changeset
405 while frame do
32df4d13f178 mod_websocket: More robust frame handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 840
diff changeset
406 frameBuffer = frameBuffer:sub(length + 1);
32df4d13f178 mod_websocket: More robust frame handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 840
diff changeset
407 if not handle_frame(frame) then return; end
32df4d13f178 mod_websocket: More robust frame handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 840
diff changeset
408 frame, length = parse_frame(frameBuffer);
32df4d13f178 mod_websocket: More robust frame handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 840
diff changeset
409 end
676
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
410 end
129
5fc00a3e47b5 mod_websocket: Initial commit
Ali Sabil <ali.sabil@gmail.com>
parents:
diff changeset
411
676
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
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parents: 129
diff changeset
412 function session.send(s)
687
d141375ece4b mod_websocket: Move frame building into a function
Florian Zeitz <florob@babelmonkeys.de>
parents: 677
diff changeset
413 conn:write(build_frame({ FIN = true, opcode = 0x01, data = tostring(s)}));
676
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
414 end
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
415
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
416 if c2s_timeout then
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
417 add_task(c2s_timeout, function ()
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
418 if session.type == "c2s_unauthed" then
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
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parents: 129
diff changeset
419 session:close("connection-timeout");
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
420 end
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
421 end);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
422 end
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
423
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
424 session.dispatch_stanza = stream_callbacks.handlestanza;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
425 end
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
426
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
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parents: 129
diff changeset
427 function listener.onincoming(conn, data)
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
428 local session = sessions[conn];
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
429 if session then
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
430 session.data(data);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
431 else
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
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parents: 129
diff changeset
432 listener.onconnect(conn, data);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
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parents: 129
diff changeset
433 session = sessions[conn];
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
434 session.data(data);
129
5fc00a3e47b5 mod_websocket: Initial commit
Ali Sabil <ali.sabil@gmail.com>
parents:
diff changeset
435 end
5fc00a3e47b5 mod_websocket: Initial commit
Ali Sabil <ali.sabil@gmail.com>
parents:
diff changeset
436 end
5fc00a3e47b5 mod_websocket: Initial commit
Ali Sabil <ali.sabil@gmail.com>
parents:
diff changeset
437
676
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
438 function listener.ondisconnect(conn, err)
129
5fc00a3e47b5 mod_websocket: Initial commit
Ali Sabil <ali.sabil@gmail.com>
parents:
diff changeset
439 local session = sessions[conn];
5fc00a3e47b5 mod_websocket: Initial commit
Ali Sabil <ali.sabil@gmail.com>
parents:
diff changeset
440 if session then
839
d297d76010d4 mod_websocket: Merge with current mod_c2s
Florian Zeitz <florob@babelmonkeys.de>
parents: 694
diff changeset
441 (session.log or log)("info", "Client disconnected: %s", err or "connection closed");
676
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
442 sm_destroy_session(session, err);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
443 sessions[conn] = nil;
129
5fc00a3e47b5 mod_websocket: Initial commit
Ali Sabil <ali.sabil@gmail.com>
parents:
diff changeset
444 end
5fc00a3e47b5 mod_websocket: Initial commit
Ali Sabil <ali.sabil@gmail.com>
parents:
diff changeset
445 end
5fc00a3e47b5 mod_websocket: Initial commit
Ali Sabil <ali.sabil@gmail.com>
parents:
diff changeset
446
676
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
447 function listener.associate_session(conn, session)
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
448 sessions[conn] = session;
129
5fc00a3e47b5 mod_websocket: Initial commit
Ali Sabil <ali.sabil@gmail.com>
parents:
diff changeset
449 end
5fc00a3e47b5 mod_websocket: Initial commit
Ali Sabil <ali.sabil@gmail.com>
parents:
diff changeset
450
676
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
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parents: 129
diff changeset
451 function handle_request(event, path)
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
452 local request, response = event.request, event.response;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
453
689
4d21bd5dde49 mod_websocket: Be nice to non-websocket clients
Florian Zeitz <florob@babelmonkeys.de>
parents: 688
diff changeset
454 if not request.headers.sec_websocket_key then
4d21bd5dde49 mod_websocket: Be nice to non-websocket clients
Florian Zeitz <florob@babelmonkeys.de>
parents: 688
diff changeset
455 response.headers.content_type = "text/html";
4d21bd5dde49 mod_websocket: Be nice to non-websocket clients
Florian Zeitz <florob@babelmonkeys.de>
parents: 688
diff changeset
456 return [[<!DOCTYPE html><html><head><title>Websocket</title></head><body>
4d21bd5dde49 mod_websocket: Be nice to non-websocket clients
Florian Zeitz <florob@babelmonkeys.de>
parents: 688
diff changeset
457 <p>It works! Now point your WebSocket client to this URL to connect to Prosody.</p>
4d21bd5dde49 mod_websocket: Be nice to non-websocket clients
Florian Zeitz <florob@babelmonkeys.de>
parents: 688
diff changeset
458 </body></html>]];
4d21bd5dde49 mod_websocket: Be nice to non-websocket clients
Florian Zeitz <florob@babelmonkeys.de>
parents: 688
diff changeset
459 end
676
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
460
844
a0987c0e4e1d mod_websocket: Check whether the xmpp sub-protocol was requested
Florian Zeitz <florob@babelmonkeys.de>
parents: 842
diff changeset
461 local wants_xmpp = false;
a0987c0e4e1d mod_websocket: Check whether the xmpp sub-protocol was requested
Florian Zeitz <florob@babelmonkeys.de>
parents: 842
diff changeset
462 (request.headers.sec_websocket_protocol or ""):gsub("([^,]*),?", function (proto)
a0987c0e4e1d mod_websocket: Check whether the xmpp sub-protocol was requested
Florian Zeitz <florob@babelmonkeys.de>
parents: 842
diff changeset
463 if proto == "xmpp" then wants_xmpp = true; end
a0987c0e4e1d mod_websocket: Check whether the xmpp sub-protocol was requested
Florian Zeitz <florob@babelmonkeys.de>
parents: 842
diff changeset
464 end);
a0987c0e4e1d mod_websocket: Check whether the xmpp sub-protocol was requested
Florian Zeitz <florob@babelmonkeys.de>
parents: 842
diff changeset
465
a0987c0e4e1d mod_websocket: Check whether the xmpp sub-protocol was requested
Florian Zeitz <florob@babelmonkeys.de>
parents: 842
diff changeset
466 if not wants_xmpp then
a0987c0e4e1d mod_websocket: Check whether the xmpp sub-protocol was requested
Florian Zeitz <florob@babelmonkeys.de>
parents: 842
diff changeset
467 return 501;
a0987c0e4e1d mod_websocket: Check whether the xmpp sub-protocol was requested
Florian Zeitz <florob@babelmonkeys.de>
parents: 842
diff changeset
468 end
842
32df4d13f178 mod_websocket: More robust frame handling
Florian Zeitz <florob@babelmonkeys.de>
parents: 840
diff changeset
469
676
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
470 response.conn:setlistener(listener);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
471 response.status = "101 Switching Protocols";
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
472 response.headers.Upgrade = "websocket";
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
473 response.headers.Connection = "Upgrade";
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
474 response.headers.Sec_WebSocket_Accept = base64(sha1(request.headers.sec_websocket_key .. "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"));
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
475 response.headers.Sec_WebSocket_Protocol = "xmpp";
856
7eb54ed58856 mod_websocket: Add CORS support
Florian Zeitz <florob@babelmonkeys.de>
parents: 853
diff changeset
476 response.headers.Access_Control_Allow_Origin = cross_domain;
676
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
477
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
478 return "";
129
5fc00a3e47b5 mod_websocket: Initial commit
Ali Sabil <ali.sabil@gmail.com>
parents:
diff changeset
479 end
676
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
480
688
e87678a52720 mod_websocket: Make this a shared module
Florian Zeitz <florob@babelmonkeys.de>
parents: 687
diff changeset
481 function module.add_host(module)
e87678a52720 mod_websocket: Make this a shared module
Florian Zeitz <florob@babelmonkeys.de>
parents: 687
diff changeset
482 module:depends("http");
676
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
483 module:provides("http", {
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
484 name = "xmpp-websocket";
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
485 route = {
849
6e2ec1825182 mod_websocket: Accept GET request without trailing /
Florian Zeitz <florob@babelmonkeys.de>
parents: 844
diff changeset
486 ["GET"] = handle_request;
6e2ec1825182 mod_websocket: Accept GET request without trailing /
Florian Zeitz <florob@babelmonkeys.de>
parents: 844
diff changeset
487 ["GET /"] = handle_request;
676
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
488 };
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP
Florian Zeitz <florob@babelmonkeys.de>
parents: 129
diff changeset
489 });
129
5fc00a3e47b5 mod_websocket: Initial commit
Ali Sabil <ali.sabil@gmail.com>
parents:
diff changeset
490 end