mirror of
https://github.com/node-red/node-red.git
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109 lines
2.7 KiB
JavaScript
109 lines
2.7 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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var oldmail = {};
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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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throw new Error("Failed to load Email credentials");
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}
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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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secure: true
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});
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function fail(err) {
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util.log('[imap] : ' + err);
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}
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function openInbox(cb) {
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imap.connect(function(err) {
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if (err) fail(err);
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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;
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var node = this;
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this.interval_id = null;
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if (this.repeat && !isNaN(this.repeat) && this.repeat > 0) {
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this.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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openInbox(function(err, mailbox) {
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if (err) fail(err);
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imap.seq.fetch(mailbox.messages.total + ':*', { struct: false },
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{ headers: ['from', 'subject'],
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body: true,
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cb: function(fetch) {
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fetch.on('message', function(msg) {
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//node.log('Saw message no. ' + msg.seqno);
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var pay = {};
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var body = '';
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msg.on('headers', function(hdrs) {
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pay.from = hdrs.from[0];
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pay.topic = hdrs.subject[0];
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});
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msg.on('data', function(chunk) {
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body += chunk.toString('utf8');
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});
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msg.on('end', function() {
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pay.payload = body;
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if ((pay.topic !== oldmail.topic)|(pay.payload !== oldmail.payload)) {
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oldmail = pay;
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//node.log("From: "+pay.from);
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node.log("Subj: "+pay.topic);
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//node.log("Body: "+pay.payload);
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node.send(pay);
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}
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});
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});
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}
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}, function(err) {
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if (err) node.log("Err : "+err);
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//node.log("Done fetching messages.");
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imap.logout();
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}
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);
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});
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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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});
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}
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RED.nodes.registerType("imap",ImapNode);
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