Sun, 04 Jul 2010 19:38:33 +0100
mod_bosh: Add jabber:client namespace to stanzas with no namespace
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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 | -- |
758 | 5 | -- This project is MIT/X11 licensed. Please see the |
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 | |
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10 | |
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11 | local logger = require "logger"; |
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12 | local log = logger.init("xmppclient_listener"); |
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13 | local lxp = require "lxp" |
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14 | local new_xmpp_stream = require "util.xmppstream".new; |
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15 | local sm_new_session = require "core.sessionmanager".new_session; |
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16 | |
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17 | local connlisteners_register = require "net.connlisteners".register; |
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18 | |
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19 | local t_insert = table.insert; |
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20 | local t_concat = table.concat; |
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21 | local t_concatall = function (t, sep) local tt = {}; for _, s in ipairs(t) do t_insert(tt, tostring(s)); end return t_concat(tt, sep); end |
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22 | local m_random = math.random; |
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23 | local format = string.format; |
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24 | local sessionmanager = require "core.sessionmanager"; |
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25 | local sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session; |
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26 | local sm_streamopened = sessionmanager.streamopened; |
331 | 27 | local sm_streamclosed = sessionmanager.streamclosed; |
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28 | local st = require "util.stanza"; |
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29 | |
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30 | local config = require "core.configmanager"; |
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31 | local opt_keepalives = config.get("*", "core", "tcp_keepalives"); |
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32 | |
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33 | local stream_callbacks = { default_ns = "jabber:client", |
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34 | streamopened = sm_streamopened, streamclosed = sm_streamclosed, handlestanza = core_process_stanza }; |
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35 | |
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36 | local xmlns_xmpp_streams = "urn:ietf:params:xml:ns:xmpp-streams"; |
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37 | |
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38 | function stream_callbacks.error(session, error, data) |
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39 | if error == "no-stream" then |
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40 | session.log("debug", "Invalid opening stream header"); |
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41 | session:close("invalid-namespace"); |
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42 | elseif error == "parse-error" then |
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43 | (session.log or log)("debug", "Client XML parse error: %s", tostring(data)); |
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44 | session:close("xml-not-well-formed"); |
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45 | elseif error == "stream-error" then |
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46 | local condition, text = "undefined-condition"; |
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47 | for child in data:children() do |
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48 | if child.attr.xmlns == xmlns_xmpp_streams then |
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49 | if child.name ~= "text" then |
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50 | condition = child.name; |
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51 | else |
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52 | text = child:get_text(); |
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53 | end |
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54 | if condition ~= "undefined-condition" and text then |
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55 | break; |
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56 | end |
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57 | end |
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58 | end |
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59 | text = condition .. (text and (" ("..text..")") or ""); |
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60 | session.log("info", "Session closed by remote with error: %s", text); |
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61 | session:close(nil, text); |
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62 | end |
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63 | end |
331 | 64 | |
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65 | local function handleerr(err) log("error", "Traceback[c2s]: %s: %s", tostring(err), debug.traceback()); end |
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66 | function stream_callbacks.handlestanza(a, b) |
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67 | xpcall(function () core_process_stanza(a, b) end, handleerr); |
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68 | end |
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69 | |
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70 | local sessions = {}; |
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71 | local xmppclient = { default_port = 5222, default_mode = "*a" }; |
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72 | |
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73 | -- These are session methods -- |
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74 | |
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75 | local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'}; |
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76 | local default_stream_attr = { ["xmlns:stream"] = "http://etherx.jabber.org/streams", xmlns = stream_callbacks.default_ns, version = "1.0", id = "" }; |
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77 | local function session_close(session, reason) |
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78 | local log = session.log or log; |
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79 | if session.conn then |
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80 | if session.notopen then |
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81 | session.send("<?xml version='1.0'?>"); |
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82 | session.send(st.stanza("stream:stream", default_stream_attr):top_tag()); |
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83 | end |
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84 | if reason then |
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85 | if type(reason) == "string" then -- assume stream error |
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86 | log("info", "Disconnecting client, <stream:error> is: %s", reason); |
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87 | session.send(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' })); |
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88 | elseif type(reason) == "table" then |
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89 | if reason.condition then |
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90 | local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up(); |
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91 | if reason.text then |
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92 | stanza:tag("text", stream_xmlns_attr):text(reason.text):up(); |
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93 | end |
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94 | if reason.extra then |
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95 | stanza:add_child(reason.extra); |
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96 | end |
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97 | log("info", "Disconnecting client, <stream:error> is: %s", tostring(stanza)); |
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98 | session.send(stanza); |
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99 | elseif reason.name then -- a stanza |
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100 | log("info", "Disconnecting client, <stream:error> is: %s", tostring(reason)); |
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101 | session.send(reason); |
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102 | end |
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103 | end |
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104 | end |
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105 | session.send("</stream:stream>"); |
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106 | session.conn:close(); |
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107 | xmppclient.ondisconnect(session.conn, (reason and (reason.text or reason.condition)) or reason or "session closed"); |
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108 | end |
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109 | end |
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110 | |
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111 | |
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112 | -- End of session methods -- |
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113 | |
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114 | function xmppclient.onconnect(conn) |
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115 | local session = sm_new_session(conn); |
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116 | sessions[conn] = session; |
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117 | |
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118 | session.log("info", "Client connected"); |
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119 | |
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120 | -- Client is using legacy SSL (otherwise mod_tls sets this flag) |
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121 | if conn:ssl() then |
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122 | session.secure = true; |
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123 | end |
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124 | |
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125 | if opt_keepalives ~= nil then |
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126 | conn:setoption("keepalive", opt_keepalives); |
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127 | end |
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128 | |
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129 | session.close = session_close; |
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130 | |
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131 | local stream = new_xmpp_stream(session, stream_callbacks); |
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132 | session.stream = stream; |
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133 | |
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134 | session.notopen = true; |
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135 | |
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136 | function session.reset_stream() |
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137 | session.notopen = true; |
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138 | session.stream:reset(); |
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139 | end |
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140 | |
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141 | local filter = session.filter; |
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142 | function session.data(data) |
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143 | data = filter("bytes/in", data); |
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144 | if data then |
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145 | local ok, err = stream:feed(data); |
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146 | if ok then return; end |
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147 | log("debug", "Received invalid XML (%s) %d bytes: %s", tostring(err), #data, data:sub(1, 300):gsub("[\r\n]+", " "):gsub("[%z\1-\31]", "_")); |
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148 | session:close("xml-not-well-formed"); |
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149 | end |
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150 | end |
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151 | |
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152 | local handlestanza = stream_callbacks.handlestanza; |
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153 | function session.dispatch_stanza(session, stanza) |
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154 | stanza = filter("stanzas/in", stanza); |
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155 | if stanza then |
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156 | return handlestanza(session, stanza); |
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157 | end |
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158 | end |
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159 | end |
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160 | |
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161 | function xmppclient.onincoming(conn, data) |
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162 | local session = sessions[conn]; |
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163 | if session then |
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164 | session.data(data); |
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165 | end |
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166 | end |
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167 | |
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168 | function xmppclient.ondisconnect(conn, err) |
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169 | local session = sessions[conn]; |
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170 | if session then |
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171 | (session.log or log)("info", "Client disconnected: %s", err); |
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172 | sm_destroy_session(session, err); |
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173 | sessions[conn] = nil; |
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174 | session = nil; |
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175 | end |
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176 | end |
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177 | |
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178 | connlisteners_register("xmppclient", xmppclient); |