verse
4c4f3dd62c54
plugins/jingle.lua

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plugins/jingle.lua @ 482:4c4f3dd62c54

squishy: Comment legacy protocol plugins by default
author Matthew Wild <mwild1@gmail.com>
date Fri, 17 Mar 2023 12:31:28 +0000
parent 457:73d4eb93657b
child 490:6b2f31da9610
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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a5ac643a7fd6 added local verse var to all plugins
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1 local verse = require "verse";
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2 local timer = require "util.timer";
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73d4eb93657b Update to use util.id for random ids instead of counters (thanks Zash)
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3 local new_id = require "util.id".short;
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4
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5 local xmlns_jingle = "urn:xmpp:jingle:1";
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6 local xmlns_jingle_errors = "urn:xmpp:jingle:errors:1";
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7
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8 local jingle_mt = {};
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9 jingle_mt.__index = jingle_mt;
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10
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11 local registered_transports = {};
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12 local registered_content_types = {};
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13
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14 function verse.plugins.jingle(stream)
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15 stream:hook("ready", function ()
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16 stream:add_disco_feature(xmlns_jingle);
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17 end, 10);
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18
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19 function stream:jingle(to)
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20 return verse.eventable(setmetatable(base or {
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21 role = "initiator";
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22 peer = to;
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23 sid = new_id();
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24 stream = stream;
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25 }, jingle_mt));
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26 end
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27
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28 function stream:register_jingle_transport(transport)
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29 -- transport is a function that receives a
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30 -- <transport> element, and returns a connection
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31 -- We wait for 'connected' on that connection,
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32 -- and use :send() and 'incoming-raw'.
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33 end
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34
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35 function stream:register_jingle_content_type(content)
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36 -- Call content() for every 'incoming-raw'?
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37 -- I think content() returns the object we return
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38 -- on jingle:accept()
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39 end
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40
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41 local function handle_incoming_jingle(stanza)
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42 local jingle_tag = stanza:get_child("jingle", xmlns_jingle);
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43 local sid = jingle_tag.attr.sid;
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44 local action = jingle_tag.attr.action;
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45 local result = stream:event("jingle/"..sid, stanza);
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46 if result == true then
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47 -- Ack
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48 stream:send(verse.reply(stanza));
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49 return true;
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50 end
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51 -- No existing Jingle object handled this action, our turn...
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52 if action ~= "session-initiate" then
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53 -- Trying to send a command to a session we don't know
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54 local reply = verse.error_reply(stanza, "cancel", "item-not-found")
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55 :tag("unknown-session", { xmlns = xmlns_jingle_errors }):up();
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56 stream:send(reply);
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57 return;
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58 end
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59
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60 -- Ok, session-initiate, new session
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61
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62 -- Create new Jingle object
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63 local sid = jingle_tag.attr.sid;
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65 local jingle = verse.eventable{
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66 role = "receiver";
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67 peer = stanza.attr.from;
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68 sid = sid;
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69 stream = stream;
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70 };
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71
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72 setmetatable(jingle, jingle_mt);
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74 local content_tag;
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75 local content, transport;
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76 for tag in jingle_tag:childtags() do
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77 if tag.name == "content" and tag.attr.xmlns == xmlns_jingle then
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78 local description_tag = tag:child_with_name("description");
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79 local description_xmlns = description_tag.attr.xmlns;
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80 if description_xmlns then
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81 local desc_handler = stream:event("jingle/content/"..description_xmlns, jingle, description_tag);
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82 if desc_handler then
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83 content = desc_handler;
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84 end
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85 end
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86
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87 local transport_tag = tag:child_with_name("transport");
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88 local transport_xmlns = transport_tag.attr.xmlns;
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89
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90 transport = stream:event("jingle/transport/"..transport_xmlns, jingle, transport_tag);
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91 if content and transport then
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92 content_tag = tag;
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93 break;
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94 end
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95 end
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96 end
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97 if not content then
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98 -- FIXME: Fail, no content
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99 stream:send(verse.error_reply(stanza, "cancel", "feature-not-implemented", "The specified content is not supported"));
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100 return true;
100
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101 end
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102
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103 if not transport then
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104 -- FIXME: Refuse session, no transport
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105 stream:send(verse.error_reply(stanza, "cancel", "feature-not-implemented", "The specified transport is not supported"));
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106 return true;
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107 end
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108
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109 stream:send(verse.reply(stanza));
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110
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111 jingle.content_tag = content_tag;
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112 jingle.creator, jingle.name = content_tag.attr.creator, content_tag.attr.name;
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113 jingle.content, jingle.transport = content, transport;
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114
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115 function jingle:decline()
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116 -- FIXME: Decline session
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117 end
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118
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119 stream:hook("jingle/"..sid, function (stanza)
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120 if stanza.attr.from ~= jingle.peer then
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121 return false;
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122 end
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123 local jingle_tag = stanza:get_child("jingle", xmlns_jingle);
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124 return jingle:handle_command(jingle_tag);
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125 end);
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126
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127 stream:event("jingle", jingle);
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128 return true;
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129 end
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130
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131 function jingle_mt:handle_command(jingle_tag)
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132 local action = jingle_tag.attr.action;
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133 stream:debug("Handling Jingle command: %s", action);
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134 if action == "session-terminate" then
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135 self:destroy();
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136 elseif action == "session-accept" then
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137 -- Yay!
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138 self:handle_accepted(jingle_tag);
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139 elseif action == "transport-info" then
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140 stream:debug("Handling transport-info");
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diff changeset
141 self.transport:info_received(jingle_tag);
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diff changeset
142 elseif action == "transport-replace" then
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143 -- FIXME: Used for IBB fallback
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144 stream:error("Peer wanted to swap transport, not implemented");
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145 else
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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diff changeset
146 -- FIXME: Reply unhandled command
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diff changeset
147 stream:warn("Unhandled Jingle command: %s", action);
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148 return nil;
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149 end
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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150 return true;
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151 end
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152
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153 function jingle_mt:send_command(command, element, callback)
197
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parents: 140
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154 local stanza = verse.iq({ to = self.peer, type = "set" })
100
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155 :tag("jingle", {
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156 xmlns = xmlns_jingle,
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157 sid = self.sid,
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158 action = command,
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159 initiator = self.role == "initiator" and self.stream.jid or nil,
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160 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
161 }):add_child(element);
100
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162 if not callback then
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163 self.stream:send(stanza);
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164 else
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165 self.stream:send_iq(stanza, callback);
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166 end
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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167 end
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168
100
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169 function jingle_mt:accept(options)
197
7e98cf2c1d8d plugins.*: Use verse.stanza() & co instead of require util.stanza
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diff changeset
170 local accept_stanza = verse.iq({ to = self.peer, type = "set" })
100
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171 :tag("jingle", {
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172 xmlns = xmlns_jingle,
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173 sid = self.sid,
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174 action = "session-accept",
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175 responder = stream.jid,
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176 })
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177 :tag("content", { creator = self.creator, name = self.name });
380
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178
100
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179 local content_accept_tag = self.content:generate_accept(self.content_tag:child_with_name("description"), options);
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180 accept_stanza:add_child(content_accept_tag);
380
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181
100
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182 local transport_accept_tag = self.transport:generate_accept(self.content_tag:child_with_name("transport"), options);
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183 accept_stanza:add_child(transport_accept_tag);
380
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184
100
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185 local jingle = self;
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186 stream:send_iq(accept_stanza, function (result)
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187 if result.attr.type == "error" then
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188 local type, condition, text = result:get_error();
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189 stream:error("session-accept rejected: %s", condition); -- FIXME: Notify
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190 return false;
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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191 end
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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192 jingle.transport:connect(function (conn)
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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193 stream:warn("CONNECTED (receiver)!!!");
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194 jingle.state = "active";
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195 jingle:event("connected", conn);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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196 end);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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197 end);
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198 end
380
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diff changeset
199
100
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200
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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201 stream:hook("iq/"..xmlns_jingle, handle_incoming_jingle);
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202 return true;
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203 end
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204
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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diff changeset
205 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
206 local session_initiate = verse.iq({ to = self.peer, type = "set" })
100
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207 :tag("jingle", { xmlns = xmlns_jingle, action = "session-initiate",
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208 initiator = self.stream.jid, sid = self.sid });
380
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diff changeset
209
100
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210 -- Content tag
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211 session_initiate:tag("content", { creator = self.role, name = name });
380
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diff changeset
212
100
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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213 -- Need description element from someone who can turn 'content' into XML
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diff changeset
214 local description = self.stream:event("jingle/describe/"..name, content);
380
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diff changeset
215
100
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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diff changeset
216 if not description then
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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217 return false, "Unknown content type";
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218 end
380
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diff changeset
219
100
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220 session_initiate:add_child(description);
380
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diff changeset
221
100
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222 -- FIXME: Sort transports by 1) recipient caps 2) priority (SOCKS vs IBB, etc.)
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223 -- Fixed to s5b in the meantime
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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diff changeset
224 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
225 self.transport = transport;
380
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diff changeset
226
100
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227 session_initiate:add_child(transport:generate_initiate());
380
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diff changeset
228
100
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diff changeset
229 self.stream:debug("Hooking %s", "jingle/"..self.sid);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
230 self.stream:hook("jingle/"..self.sid, function (stanza)
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
231 if stanza.attr.from ~= self.peer then
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
232 return false;
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
233 end
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
234 local jingle_tag = stanza:get_child("jingle", xmlns_jingle);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
235 return self:handle_command(jingle_tag)
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parents:
diff changeset
236 end);
380
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diff changeset
237
100
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diff changeset
238 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
239 if result.attr.type == "error" then
100
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diff changeset
240 self.state = "terminated";
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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diff changeset
241 local type, condition, text = result:get_error();
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
242 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
243 end
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
244 end);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
245 self.state = "pending";
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
246 end
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
247
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
248 function jingle_mt:terminate(reason)
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
249 local reason_tag = verse.stanza("reason"):tag(reason or "success");
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parents:
diff changeset
250 self:send_command("session-terminate", reason_tag, function (result)
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parents:
diff changeset
251 self.state = "terminated";
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
252 self.transport:disconnect();
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
253 self:destroy();
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
254 end);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
255 end
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
256
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
257 function jingle_mt:destroy()
118
d076948cd0e1 plugins.jingle: Add 'terminated' event
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parents: 100
diff changeset
258 self:event("terminated");
100
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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diff changeset
259 self.stream:unhook("jingle/"..self.sid, self.handle_command);
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parents:
diff changeset
260 end
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
261
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
262 function jingle_mt:handle_accepted(jingle_tag)
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
263 local transport_tag = jingle_tag:child_with_name("transport");
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
264 self.transport:handle_accepted(transport_tag);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
265 self.transport:connect(function (conn)
211
837cd09fcf01 plugins.jingle: Logging fix
Kim Alvefur <zash@zash.se>
parents: 197
diff changeset
266 self.stream:debug("CONNECTED (initiator)!")
100
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
267 -- Connected, send file
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parents:
diff changeset
268 self.state = "active";
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
269 self:event("connected", conn);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
270 end);
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
271 end
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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diff changeset
272
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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diff changeset
273 function jingle_mt:set_source(source, auto_close)
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parents:
diff changeset
274 local function pump()
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
diff changeset
275 local chunk, err = source();
e45883a3f39a verse.plugins.jingle: XEP-0166 Jingle plugin
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parents:
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276 if chunk and chunk ~= "" then
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277 self.transport.conn:send(chunk);
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278 elseif chunk == "" then
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279 return pump(); -- We need some data!
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280 elseif chunk == nil then
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281 if auto_close then
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282 self:terminate();
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283 end
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284 self.transport.conn:unhook("drained", pump);
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285 source = nil;
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286 end
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287 end
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288 self.transport.conn:hook("drained", pump);
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289 pump();
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290 end
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291
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292 function jingle_mt:set_sink(sink)
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293 self.transport.conn:hook("incoming-raw", sink);
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294 self.transport.conn:hook("disconnected", function (event)
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295 self.stream:debug("Closing sink...");
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296 local reason = event.reason;
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297 if reason == "closed" then reason = nil; end
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298 sink(nil, reason);
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299 end);
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300 end