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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 RED = require(process.env.NODE_RED_HOME+"/red/red");
var Imap = require('imap');
var util = require('util');
try {
var emailkey = RED.settings.email || require(process.env.NODE_RED_HOME+"/../emailkeys.js");
} catch (err) {
//util.log("[61-imap.js] Info : No Email credentials found.");
}
if (emailkey) {
var imap = new Imap({
user: emailkey.user,
password: emailkey.pass,
host: emailkey.server||"imap.gmail.com",
port: emailkey.port||"993",
tls: true,
tlsOptions: { rejectUnauthorized: false }
});
function openInbox(cb) {
imap.openBox('INBOX', true, cb);
}
}
function ImapNode(n) {
RED.nodes.createNode(this,n);
this.warn("This node has been deprecated and will be deleted in a future release. Please update your flow to use the 'e-mail in' node.");
this.name = n.name;
this.repeat = n.repeat * 1000 || 300000;
var node = this;
this.interval_id = null;
var oldmail = {};
if (!isNaN(this.repeat) && this.repeat > 0) {
node.log("repeat = "+this.repeat);
this.interval_id = setInterval( function() {
node.emit("input",{});
}, this.repeat );
}
this.on("input", function(msg) {
if (imap) {
imap.once('ready', function() {
var pay = {};
openInbox(function(err, box) {
if (box.messages.total > 0) {
var f = imap.seq.fetch(box.messages.total + ':*', { bodies: ['HEADER.FIELDS (FROM SUBJECT DATE)','TEXT'] });
f.on('message', function(msg, seqno) {
node.log('message: #'+ seqno);
var prefix = '(#' + seqno + ') ';
msg.on('body', function(stream, info) {
var buffer = '';
stream.on('data', function(chunk) {
buffer += chunk.toString('utf8');
});
stream.on('end', function() {
if (info.which !== 'TEXT') {
pay.from = Imap.parseHeader(buffer).from[0];
pay.topic = Imap.parseHeader(buffer).subject[0];
pay.date = Imap.parseHeader(buffer).date[0];
} else {
var parts = buffer.split("Content-Type");
for (var p in parts) {
if (parts[p].indexOf("text/plain") >= 0) {
pay.payload = parts[p].split("\n").slice(1,-2).join("\n").trim();
}
if (parts[p].indexOf("text/html") >= 0) {
pay.html = parts[p].split("\n").slice(1,-2).join("\n").trim();
}
}
//pay.body = buffer;
}
});
});
msg.on('end', function() {
//node.log('Finished: '+prefix);
});
});
f.on('error', function(err) {
node.warn('fetch error: ' + err);
});
f.on('end', function() {
if (JSON.stringify(pay) !== oldmail) {
node.send(pay);
oldmail = JSON.stringify(pay);
node.log('sent new message: '+pay.topic);
}
else { node.log('duplicate not sent: '+pay.topic); }
imap.end();
});
}
else {
// node.log("you have achieved inbox zero");
imap.end();
}
});
});
imap.connect();
}
else { node.warn("No Email credentials found. See info panel."); }
});
if (imap) {
imap.on('error', function(err) {
util.log(err);
});
}
this.on("error", function(err) {
node.log("error: ",err);
});
this.on("close", function() {
if (this.interval_id != null) {
clearInterval(this.interval_id);
}
if (imap) { imap.destroy(); }
});
node.emit("input",{});
}
RED.nodes.registerType("imap",ImapNode);
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