verse
b496f0262a3f
plugins/jingle.lua

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plugins/jingle.lua @ 391:b496f0262a3f

libs.encodings: mime.unb64 is buggy with \0 should have been fixed
author Kim Alvefur <zash@zash.se>
date Tue, 25 Aug 2015 16:27:38 +0200
parent 380:0891b4e27766
child 392:cdea6a28369e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
250
a5ac643a7fd6 added local verse var to all plugins
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1 local verse = require "verse";
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2 local sha1 = require "util.sha1".sha1;
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3 local timer = require "util.timer";
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4 local uuid_generate = require "util.uuid".generate;
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5
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6 local xmlns_jingle = "urn:xmpp:jingle:1";
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7 local xmlns_jingle_errors = "urn:xmpp:jingle:errors:1";
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8
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9 local jingle_mt = {};
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10 jingle_mt.__index = jingle_mt;
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11
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12 local registered_transports = {};
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13 local registered_content_types = {};
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14
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15 function verse.plugins.jingle(stream)
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16 stream:hook("ready", function ()
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17 stream:add_disco_feature(xmlns_jingle);
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18 end, 10);
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19
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20 function stream:jingle(to)
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21 return verse.eventable(setmetatable(base or {
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22 role = "initiator";
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23 peer = to;
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24 sid = uuid_generate();
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25 stream = stream;
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26 }, jingle_mt));
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27 end
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28
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29 function stream:register_jingle_transport(transport)
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30 -- transport is a function that receives a
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31 -- <transport> element, and returns a connection
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32 -- We wait for 'connected' on that connection,
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33 -- and use :send() and 'incoming-raw'.
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34 end
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35
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36 function stream:register_jingle_content_type(content)
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37 -- Call content() for every 'incoming-raw'?
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38 -- I think content() returns the object we return
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39 -- on jingle:accept()
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40 end
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41
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42 local function handle_incoming_jingle(stanza)
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43 local jingle_tag = stanza:get_child("jingle", xmlns_jingle);
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44 local sid = jingle_tag.attr.sid;
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45 local action = jingle_tag.attr.action;
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46 local result = stream:event("jingle/"..sid, stanza);
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47 if result == true then
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48 -- Ack
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49 stream:send(verse.reply(stanza));
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50 return true;
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51 end
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52 -- No existing Jingle object handled this action, our turn...
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53 if action ~= "session-initiate" then
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54 -- Trying to send a command to a session we don't know
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55 local reply = verse.error_reply(stanza, "cancel", "item-not-found")
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56 :tag("unknown-session", { xmlns = xmlns_jingle_errors }):up();
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57 stream:send(reply);
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58 return;
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59 end
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60
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61 -- Ok, session-initiate, new session
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62
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63 -- Create new Jingle object
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64 local sid = jingle_tag.attr.sid;
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65
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66 local jingle = verse.eventable{
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67 role = "receiver";
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68 peer = stanza.attr.from;
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69 sid = sid;
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70 stream = stream;
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71 };
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72
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73 setmetatable(jingle, jingle_mt);
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74
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75 local content_tag;
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76 local content, transport;
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77 for tag in jingle_tag:childtags() do
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78 if tag.name == "content" and tag.attr.xmlns == xmlns_jingle then
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79 local description_tag = tag:child_with_name("description");
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80 local description_xmlns = description_tag.attr.xmlns;
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81 if description_xmlns then
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82 local desc_handler = stream:event("jingle/content/"..description_xmlns, jingle, description_tag);
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83 if desc_handler then
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84 content = desc_handler;
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85 end
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86 end
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87
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88 local transport_tag = tag:child_with_name("transport");
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89 local transport_xmlns = transport_tag.attr.xmlns;
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91 transport = stream:event("jingle/transport/"..transport_xmlns, jingle, transport_tag);
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92 if content and transport then
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93 content_tag = tag;
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94 break;
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95 end
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96 end
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97 end
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98 if not content then
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99 -- FIXME: Fail, no content
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100 stream:send(verse.error_reply(stanza, "cancel", "feature-not-implemented", "The specified content is not supported"));
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101 return true;
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102 end
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103
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104 if not transport then
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105 -- FIXME: Refuse session, no transport
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106 stream:send(verse.error_reply(stanza, "cancel", "feature-not-implemented", "The specified transport is not supported"));
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107 return true;
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108 end
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109
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110 stream:send(verse.reply(stanza));
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111
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112 jingle.content_tag = content_tag;
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113 jingle.creator, jingle.name = content_tag.attr.creator, content_tag.attr.name;
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114 jingle.content, jingle.transport = content, transport;
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115
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116 function jingle:decline()
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117 -- FIXME: Decline session
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118 end
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119
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120 stream:hook("jingle/"..sid, function (stanza)
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121 if stanza.attr.from ~= jingle.peer then
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122 return false;
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123 end
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124 local jingle_tag = stanza:get_child("jingle", xmlns_jingle);
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125 return jingle:handle_command(jingle_tag);
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126 end);
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127
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128 stream:event("jingle", jingle);
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129 return true;
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130 end
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131
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132 function jingle_mt:handle_command(jingle_tag)
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133 local action = jingle_tag.attr.action;
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134 stream:debug("Handling Jingle command: %s", action);
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135 if action == "session-terminate" then
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136 self:destroy();
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137 elseif action == "session-accept" then
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138 -- Yay!
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diff changeset
139 self:handle_accepted(jingle_tag);
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140 elseif action == "transport-info" then
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141 stream:debug("Handling transport-info");
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diff changeset
142 self.transport:info_received(jingle_tag);
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diff changeset
143 elseif action == "transport-replace" then
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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144 -- FIXME: Used for IBB fallback
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diff changeset
145 stream:error("Peer wanted to swap transport, not implemented");
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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146 else
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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147 -- FIXME: Reply unhandled command
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148 stream:warn("Unhandled Jingle command: %s", action);
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149 return nil;
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150 end
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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151 return true;
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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152 end
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153
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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154 function jingle_mt:send_command(command, element, callback)
197
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parents: 140
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155 local stanza = verse.iq({ to = self.peer, type = "set" })
100
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156 :tag("jingle", {
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157 xmlns = xmlns_jingle,
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158 sid = self.sid,
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159 action = command,
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160 initiator = self.role == "initiator" and self.stream.jid or nil,
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161 responder = self.role == "responder" and self.jid or nil,
140
97bf22d6ff96 plugins.jingle, plugins.jingle_s5b: API changes to allow not sending <reason> inside <content> when transfer succeeds
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diff changeset
162 }):add_child(element);
100
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163 if not callback then
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164 self.stream:send(stanza);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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165 else
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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166 self.stream:send_iq(stanza, callback);
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167 end
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
Matthew Wild <mwild1@gmail.com>
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168 end
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169
100
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170 function jingle_mt:accept(options)
197
7e98cf2c1d8d plugins.*: Use verse.stanza() & co instead of require util.stanza
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parents: 140
diff changeset
171 local accept_stanza = verse.iq({ to = self.peer, type = "set" })
100
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172 :tag("jingle", {
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173 xmlns = xmlns_jingle,
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174 sid = self.sid,
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175 action = "session-accept",
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176 responder = stream.jid,
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177 })
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178 :tag("content", { creator = self.creator, name = self.name });
380
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179
100
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180 local content_accept_tag = self.content:generate_accept(self.content_tag:child_with_name("description"), options);
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181 accept_stanza:add_child(content_accept_tag);
380
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182
100
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183 local transport_accept_tag = self.transport:generate_accept(self.content_tag:child_with_name("transport"), options);
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184 accept_stanza:add_child(transport_accept_tag);
380
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185
100
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186 local jingle = self;
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187 stream:send_iq(accept_stanza, function (result)
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188 if result.attr.type == "error" then
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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189 local type, condition, text = result:get_error();
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190 stream:error("session-accept rejected: %s", condition); -- FIXME: Notify
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191 return false;
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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192 end
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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193 jingle.transport:connect(function (conn)
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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194 stream:warn("CONNECTED (receiver)!!!");
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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195 jingle.state = "active";
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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196 jingle:event("connected", conn);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
Matthew Wild <mwild1@gmail.com>
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197 end);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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198 end);
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199 end
380
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diff changeset
200
100
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201
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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202 stream:hook("iq/"..xmlns_jingle, handle_incoming_jingle);
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203 return true;
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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204 end
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205
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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diff changeset
206 function jingle_mt:offer(name, content)
197
7e98cf2c1d8d plugins.*: Use verse.stanza() & co instead of require util.stanza
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parents: 140
diff changeset
207 local session_initiate = verse.iq({ to = self.peer, type = "set" })
100
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208 :tag("jingle", { xmlns = xmlns_jingle, action = "session-initiate",
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diff changeset
209 initiator = self.stream.jid, sid = self.sid });
380
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diff changeset
210
100
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211 -- Content tag
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212 session_initiate:tag("content", { creator = self.role, name = name });
380
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diff changeset
213
100
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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214 -- Need description element from someone who can turn 'content' into XML
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diff changeset
215 local description = self.stream:event("jingle/describe/"..name, content);
380
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diff changeset
216
100
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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diff changeset
217 if not description then
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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218 return false, "Unknown content type";
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219 end
380
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diff changeset
220
100
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221 session_initiate:add_child(description);
380
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diff changeset
222
100
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223 -- FIXME: Sort transports by 1) recipient caps 2) priority (SOCKS vs IBB, etc.)
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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224 -- Fixed to s5b in the meantime
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diff changeset
225 local transport = self.stream:event("jingle/transport/".."urn:xmpp:jingle:transports:s5b:1", self);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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diff changeset
226 self.transport = transport;
380
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diff changeset
227
100
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228 session_initiate:add_child(transport:generate_initiate());
380
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diff changeset
229
100
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diff changeset
230 self.stream:debug("Hooking %s", "jingle/"..self.sid);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
231 self.stream:hook("jingle/"..self.sid, function (stanza)
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
232 if stanza.attr.from ~= self.peer then
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
233 return false;
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
234 end
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
235 local jingle_tag = stanza:get_child("jingle", xmlns_jingle);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
236 return self:handle_command(jingle_tag)
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parents:
diff changeset
237 end);
380
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diff changeset
238
100
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diff changeset
239 self.stream:send_iq(session_initiate, function (result)
341
a95890d86fe4 plugins.adhoc, plugins.jingle: Fix checking of type attribute (thanks Mark)
Matthew Wild <mwild1@gmail.com>
parents: 250
diff changeset
240 if result.attr.type == "error" then
100
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
241 self.state = "terminated";
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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diff changeset
242 local type, condition, text = result:get_error();
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parents:
diff changeset
243 return self:event("error", { type = type, condition = condition, text = text });
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
244 end
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
245 end);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
246 self.state = "pending";
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
247 end
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
248
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
249 function jingle_mt:terminate(reason)
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
250 local reason_tag = verse.stanza("reason"):tag(reason or "success");
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parents:
diff changeset
251 self:send_command("session-terminate", reason_tag, function (result)
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parents:
diff changeset
252 self.state = "terminated";
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
253 self.transport:disconnect();
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
254 self:destroy();
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
255 end);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
256 end
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
257
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
258 function jingle_mt:destroy()
118
d076948cd0e1 plugins.jingle: Add 'terminated' event
Matthew Wild <mwild1@gmail.com>
parents: 100
diff changeset
259 self:event("terminated");
100
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
260 self.stream:unhook("jingle/"..self.sid, self.handle_command);
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parents:
diff changeset
261 end
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
262
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
263 function jingle_mt:handle_accepted(jingle_tag)
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
264 local transport_tag = jingle_tag:child_with_name("transport");
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
265 self.transport:handle_accepted(transport_tag);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
266 self.transport:connect(function (conn)
211
837cd09fcf01 plugins.jingle: Logging fix
Kim Alvefur <zash@zash.se>
parents: 197
diff changeset
267 self.stream:debug("CONNECTED (initiator)!")
100
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
268 -- Connected, send file
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
269 self.state = "active";
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
270 self:event("connected", conn);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
271 end);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
272 end
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
273
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
274 function jingle_mt:set_source(source, auto_close)
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
275 local function pump()
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
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276 local chunk, err = source();
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277 if chunk and chunk ~= "" then
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278 self.transport.conn:send(chunk);
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279 elseif chunk == "" then
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280 return pump(); -- We need some data!
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281 elseif chunk == nil then
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282 if auto_close then
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283 self:terminate();
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284 end
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285 self.transport.conn:unhook("drained", pump);
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286 source = nil;
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287 end
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288 end
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289 self.transport.conn:hook("drained", pump);
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290 pump();
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291 end
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292
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293 function jingle_mt:set_sink(sink)
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294 self.transport.conn:hook("incoming-raw", sink);
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295 self.transport.conn:hook("disconnected", function (event)
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296 self.stream:debug("Closing sink...");
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297 local reason = event.reason;
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298 if reason == "closed" then reason = nil; end
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299 sink(nil, reason);
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300 end);
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301 end