verse
39ce7535887c
client.lua

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client.lua @ 283:39ce7535887c

plugins.pubsub: Add a local variable to save some table lookups
author Kim Alvefur <zash@zash.se>
date Mon, 05 Mar 2012 20:18:54 +0100
parent 282:52b971d9ebc3
child 323:5bf3b13edb80
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rev   line source
26
6c5fab6c11cf Rename verse2 -> verse
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diff changeset
1 local verse = require "verse";
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2 local stream = verse.stream_mt;
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3
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9c96318913f7 Revert module names throughout to their Prosody equivalents
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4 local jid_split = require "util.jid".split;
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5 local adns = require "net.adns";
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6 local lxp = require "lxp";
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7 local st = require "util.stanza";
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e6fad7c411fe verse.client: Extend verse object with message/iq/presence/stanza methods from util.stanza
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8
e6fad7c411fe verse.client: Extend verse object with message/iq/presence/stanza methods from util.stanza
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9 -- Shortcuts to save having to load util.stanza
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10 verse.message, verse.presence, verse.iq, verse.stanza, verse.reply, verse.error_reply =
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11 st.message, st.presence, st.iq, st.stanza, st.reply, st.error_reply;
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12
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13 local new_xmpp_stream = require "util.xmppstream".new;
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15 local xmlns_stream = "http://etherx.jabber.org/streams";
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16
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17 local function compare_srv_priorities(a,b)
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18 return a.priority < b.priority or (a.priority == b.priority and a.weight > b.weight);
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19 end
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20
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21 local stream_callbacks = {
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22 stream_ns = xmlns_stream,
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23 stream_tag = "stream",
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24 default_ns = "jabber:client" };
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26 function stream_callbacks.streamopened(stream, attr)
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27 stream.stream_id = attr.id;
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28 if not stream:event("opened", attr) then
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29 stream.notopen = nil;
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30 end
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31 return true;
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32 end
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33
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34 function stream_callbacks.streamclosed(stream)
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35 return stream:event("closed");
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36 end
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37
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38 function stream_callbacks.handlestanza(stream, stanza)
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39 if stanza.attr.xmlns == xmlns_stream then
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40 return stream:event("stream-"..stanza.name, stanza);
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41 elseif stanza.attr.xmlns then
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42 return stream:event("stream/"..stanza.attr.xmlns, stanza);
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43 end
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44
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45 return stream:event("stanza", stanza);
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46 end
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48 function stream:reset()
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49 if self.stream then
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50 self.stream:reset();
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51 else
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52 self.stream = new_xmpp_stream(self, stream_callbacks);
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53 end
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54 self.notopen = true;
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55 return true;
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56 end
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57
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58 function stream:connect_client(jid, pass)
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59 self.jid, self.password = jid, pass;
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60 self.username, self.host, self.resource = jid_split(jid);
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61
62
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62 -- Required XMPP features
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63 self:add_plugin("tls");
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64 self:add_plugin("sasl");
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65 self:add_plugin("bind");
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66 self:add_plugin("session");
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67
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68 function self.data(conn, data)
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69 local ok, err = self.stream:feed(data);
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70 if ok then return; end
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71 self:debug("debug", "Received invalid XML (%s) %d bytes: %s", tostring(err), #data, data:sub(1, 300):gsub("[\r\n]+", " "));
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72 self:close("xml-not-well-formed");
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73 end
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74
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75 self:hook("connected", function () self:reopen(); end);
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76 self:hook("incoming-raw", function (data) return self.data(self.conn, data); end);
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77
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78 self.curr_id = 0;
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79
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80 self.tracked_iqs = {};
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81 self:hook("stanza", function (stanza)
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82 local id, type = stanza.attr.id, stanza.attr.type;
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83 if id and stanza.name == "iq" and (type == "result" or type == "error") and self.tracked_iqs[id] then
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84 self.tracked_iqs[id](stanza);
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85 self.tracked_iqs[id] = nil;
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86 return true;
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87 end
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88 end);
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89
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90 self:hook("stanza", function (stanza)
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91 local ret;
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92 if stanza.attr.xmlns == nil or stanza.attr.xmlns == "jabber:client" then
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93 if stanza.name == "iq" and (stanza.attr.type == "get" or stanza.attr.type == "set") then
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94 local xmlns = stanza.tags[1] and stanza.tags[1].attr.xmlns;
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95 if xmlns then
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96 ret = self:event("iq/"..xmlns, stanza);
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97 if not ret then
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98 ret = self:event("iq", stanza);
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99 end
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100 end
81
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101 if ret == nil then
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102 self:send(verse.error_reply(stanza, "cancel", "service-unavailable"));
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103 return true;
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104 end
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105 else
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106 ret = self:event(stanza.name, stanza);
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107 end
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108 end
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109 return ret;
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110 end, -1);
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111
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112 self:hook("outgoing", function (data)
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113 if data.name then
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114 self:event("stanza-out", data);
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115 end
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116 end);
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117
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118 self:hook("stanza-out", function (stanza)
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119 if not stanza.attr.xmlns then
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120 self:event(stanza.name.."-out", stanza);
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121 end
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122 end);
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123
76
927167321283 verse.client: Fire 'ready' event on stream when resource binding or session negotiation is complete, hook this instead of binding-success
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124 local function stream_ready()
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125 self:event("ready");
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126 end
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127 self:hook("session-success", stream_ready, -1)
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128 self:hook("bind-success", stream_ready, -1);
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129
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ad6006779416 verse.client: Update stream:close() to use base stream:close(), and not add an XMPP-specific :close() to the base stream
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130 local _base_close = self.close;
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131 function self:close(reason)
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132 if not self.notopen then
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133 self:send("</stream:stream>");
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134 end
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135 return _base_close(self);
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136 end
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137
137
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138 local function start_connect()
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139 -- Initialise connection
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140 self:connect(self.connect_host or self.host, self.connect_port or 5222);
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141 end
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142
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143 if not (self.connect_host or self.connect_port) then
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144 -- Look up SRV records
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145 adns.lookup(function (answer)
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146 if answer then
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147 local srv_hosts = {};
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148 self.srv_hosts = srv_hosts;
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149 for _, record in ipairs(answer) do
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150 table.insert(srv_hosts, record.srv);
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151 end
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152 table.sort(srv_hosts, compare_srv_priorities);
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153
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154 local srv_choice = srv_hosts[1];
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155 self.srv_choice = 1;
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156 if srv_choice then
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157 self.connect_host, self.connect_port = srv_choice.target, srv_choice.port;
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diff changeset
158 self:debug("Best record found, will connect to %s:%d", self.connect_host or self.host, self.connect_port or 5222);
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diff changeset
159 end
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160
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161 self:hook("disconnected", function ()
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diff changeset
162 if self.srv_hosts and self.srv_choice < #self.srv_hosts then
e4b9d3c5332c verse.client: Support for SRV record lookups
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diff changeset
163 self.srv_choice = self.srv_choice + 1;
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diff changeset
164 local srv_choice = srv_hosts[self.srv_choice];
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diff changeset
165 self.connect_host, self.connect_port = srv_choice.target, srv_choice.port;
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diff changeset
166 start_connect();
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167 return true;
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diff changeset
168 end
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diff changeset
169 end, 1000);
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170
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diff changeset
171 self:hook("connected", function ()
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172 self.srv_hosts = nil;
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diff changeset
173 end, 1000);
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diff changeset
174 end
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175 start_connect();
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176 end, "_xmpp-client._tcp."..(self.host)..".", "SRV");
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diff changeset
177 else
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178 start_connect();
e4b9d3c5332c verse.client: Support for SRV record lookups
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179 end
1
7c8d0a2fc004 Break client-specific code into verse.client module
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180 end
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parents:
diff changeset
181
11
ce349990bd21 verse.client: Add stream:reopen()
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diff changeset
182 function stream:reopen()
70
36d113fb0f3c verse.client: Add stream:reset(), keep self.data static between resets
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diff changeset
183 self:reset();
49
9c10ff584e87 verse.client: Add missing version to stream header (thanks Bill Clark)
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diff changeset
184 self:send(st.stanza("stream:stream", { to = self.host, ["xmlns:stream"]='http://etherx.jabber.org/streams',
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diff changeset
185 xmlns = "jabber:client", version = "1.0" }):top_tag());
11
ce349990bd21 verse.client: Add stream:reopen()
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186 end
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187
13
c3d83b98fb4f verse.client: Add stream:send_iq() and stream:new_id() for sending iqs with response handlers, and for generating stream-unique ids respectively
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diff changeset
188 function stream:send_iq(iq, callback)
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diff changeset
189 local id = self:new_id();
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diff changeset
190 self.tracked_iqs[id] = callback;
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diff changeset
191 iq.attr.id = id;
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diff changeset
192 self:send(iq);
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diff changeset
193 end
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diff changeset
194
c3d83b98fb4f verse.client: Add stream:send_iq() and stream:new_id() for sending iqs with response handlers, and for generating stream-unique ids respectively
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parents: 12
diff changeset
195 function stream:new_id()
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diff changeset
196 self.curr_id = self.curr_id + 1;
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diff changeset
197 return tostring(self.curr_id);
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parents: 12
diff changeset
198 end