mirror of https://github.com/node-red/node-red.git
139 lines
5.2 KiB
JavaScript
139 lines
5.2 KiB
JavaScript
/**
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* Copyright 2013 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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var RED = require(process.env.NODE_RED_HOME+"/red/red");
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var Imap = require('imap');
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var util = require('util');
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try {
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var emailkey = RED.settings.email || require(process.env.NODE_RED_HOME+"/../emailkeys.js");
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} catch (err) {
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//util.log("[61-imap.js] Info : No Email credentials found.");
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}
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if (emailkey) {
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var imap = new Imap({
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user: emailkey.user,
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password: emailkey.pass,
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host: emailkey.server||"imap.gmail.com",
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port: emailkey.port||"993",
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tls: true,
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tlsOptions: { rejectUnauthorized: false }
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});
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function openInbox(cb) {
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imap.openBox('INBOX', true, cb);
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}
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}
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function ImapNode(n) {
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RED.nodes.createNode(this,n);
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this.name = n.name;
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this.repeat = n.repeat * 1000 || 300000;
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var node = this;
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this.interval_id = null;
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var oldmail = {};
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if (!isNaN(this.repeat) && this.repeat > 0) {
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node.log("repeat = "+this.repeat);
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this.interval_id = setInterval( function() {
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node.emit("input",{});
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}, this.repeat );
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}
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this.on("input", function(msg) {
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if (imap) {
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imap.once('ready', function() {
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var pay = {};
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openInbox(function(err, box) {
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if (box.messages.total > 0) {
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var f = imap.seq.fetch(box.messages.total + ':*', { bodies: ['HEADER.FIELDS (FROM SUBJECT DATE)','TEXT'] });
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f.on('message', function(msg, seqno) {
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node.log('message: #'+ seqno);
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var prefix = '(#' + seqno + ') ';
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msg.on('body', function(stream, info) {
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var buffer = '';
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stream.on('data', function(chunk) {
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buffer += chunk.toString('utf8');
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});
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stream.on('end', function() {
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if (info.which !== 'TEXT') {
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pay.from = Imap.parseHeader(buffer).from[0];
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pay.topic = Imap.parseHeader(buffer).subject[0];
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pay.date = Imap.parseHeader(buffer).date[0];
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} else {
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var parts = buffer.split("Content-Type");
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for (var p in parts) {
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if (parts[p].indexOf("text/plain") >= 0) {
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pay.payload = parts[p].split("\n").slice(1,-2).join("\n").trim();
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}
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if (parts[p].indexOf("text/html") >= 0) {
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pay.html = parts[p].split("\n").slice(1,-2).join("\n").trim();
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}
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}
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//pay.body = buffer;
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}
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});
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});
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msg.on('end', function() {
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//node.log('Finished: '+prefix);
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});
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});
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f.on('error', function(err) {
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node.warn('fetch error: ' + err);
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});
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f.on('end', function() {
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if (JSON.stringify(pay) !== oldmail) {
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node.send(pay);
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oldmail = JSON.stringify(pay);
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node.log('sent new message: '+pay.topic);
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}
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else { node.log('duplicate not sent: '+pay.topic); }
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imap.end();
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});
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}
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else {
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// node.log("you have achieved inbox zero");
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imap.end();
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}
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});
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});
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imap.connect();
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}
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else { node.warn("No Email credentials found. See info panel."); }
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});
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if (imap) {
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imap.on('error', function(err) {
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util.log(err);
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});
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}
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this.on("error", function(err) {
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node.log("error: ",err);
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});
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this.on("close", function() {
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if (this.interval_id != null) {
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clearInterval(this.interval_id);
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}
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if (imap) { imap.destroy(); }
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});
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node.emit("input",{});
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}
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RED.nodes.registerType("imap",ImapNode);
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