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node-red-nodes/social/xmpp/92-xmpp.js

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/**
* Copyright 2013 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
var orig=console.warn;
console.warn=(function() { // suppress warning from stringprep when not needed)
var orig=console.warn;
return function() {
//orig.apply(console, arguments);
};
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})();
var RED = require(process.env.NODE_RED_HOME+"/red/red");
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var xmpp = require('simple-xmpp');
console.warn = orig;
try {
var xmppkey = RED.settings.xmpp || require(process.env.NODE_RED_HOME+"/../xmppkeys.js");
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} catch(err) {
throw new Error("Failed to load XMPP credentials");
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}
function XmppNode(n) {
RED.nodes.createNode(this,n);
this.server = n.server;
this.port = n.port;
this.join = n.join || false;
this.nick = n.nick || "Node-RED";
this.sendAll = n.sendObject;
this.to = n.to || "";
var node = this;
setTimeout(function() {
xmpp.connect({
jid : xmppkey.jid,
password : xmppkey.password,
host : this.server,
port : this.port,
skipPresence : true,
reconnect : false
});
}, 5000);
xmpp.on('online', function() {
node.log('connected to '+node.server);
xmpp.setPresence('online', node.nick+' online');
if (node.join) {
xmpp.join(node.to+'/'+node.nick);
}
});
xmpp.on('chat', function(from, message) {
var msg = { topic:from, payload:message };
node.send([msg,null]);
});
xmpp.on('groupchat', function(conference, from, message, stamp) {
var msg = { topic:from, payload:message, room:conference };
if (from != node.nick) { node.send([msg,null]); }
});
//xmpp.on('chatstate', function(from, state) {
//console.log('%s is currently %s', from, state);
//var msg = { topic:from, payload:state };
//node.send([null,msg]);
//});
xmpp.on('buddy', function(jid, state, statusText) {
node.log(jid+" is "+state+" : "+statusText);
var msg = { topic:jid, payload: { presence:state, status:statusText} };
node.send([null,msg]);
});
xmpp.on('error', function(err) {
console.error(err);
});
xmpp.on('close', function(err) {
node.log('connection closed');
});
xmpp.on('subscribe', function(from) {
xmpp.acceptSubscription(from);
});
this.on("input", function(msg) {
var to = msg.topic;
if (node.to != "") { to = node.to; }
if (node.sendAll) {
xmpp.send(to, JSON.stringify(msg), node.join);
}
else {
xmpp.send(to, msg.payload, node.join);
}
});
this.on("close", function() {
xmpp.setPresence('offline');
try {
xmpp.disconnect();
// TODO - DCJ NOTE... this is not good. It leaves the connection up over a restart - which will end up with bad things happening...
// (but requires the underlying xmpp lib to be fixed, which does have an open bug request on fixing the close method - and a work around.
// see - https://github.com/simple-xmpp/node-simple-xmpp/issues/12 for the fix
} catch(e) {
this.warn("Due to an underlying bug in the xmpp library this does not disconnect old sessions. This is bad... A restart would be better.");
}
});
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}
RED.nodes.registerType("xmpp",XmppNode);