/**
* Copyright 2013, 2015 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.
**/
module.exports = function(RED) {
"use strict";
var nodemailer = require("nodemailer");
var Imap = require('imap');
//console.log(nodemailer.Transport.transports.SMTP.wellKnownHosts);
try {
var globalkeys = RED.settings.email || require(process.env.NODE_RED_HOME+"/../emailkeys.js");
} catch(err) {
}
function EmailNode(n) {
RED.nodes.createNode(this,n);
this.topic = n.topic;
this.name = n.name;
this.outserver = n.server;
this.outport = n.port;
var flag = false;
if (this.credentials && this.credentials.hasOwnProperty("userid")) {
this.userid = this.credentials.userid;
} else {
if (globalkeys) {
this.userid = globalkeys.user;
flag = true;
} else {
this.error(RED._("email.errors.nouserid"));
}
}
if (this.credentials && this.credentials.hasOwnProperty("password")) {
this.password = this.credentials.password;
} else {
if (globalkeys) {
this.password = globalkeys.pass;
flag = true;
} else {
this.error(RED._("email.errors.nopassword"));
}
}
if (flag) {
RED.nodes.addCredentials(n.id,{userid:this.userid, password:this.password, global:true});
}
var node = this;
var smtpTransport = nodemailer.createTransport({
host: node.outserver,
port: node.outport,
secure: true,
auth: {
user: node.userid,
pass: node.password
}
});
this.on("input", function(msg) {
if (msg.hasOwnProperty("payload")) {
if (smtpTransport) {
node.status({fill:"blue",shape:"dot",text:"email.status.sending"});
if (msg.to && node.name && (msg.to !== node.name)) {
node.warn(RED._("node-red:common.errors.nooverride"));
}
var sendopts = { from: node.userid }; // sender address
sendopts.to = node.name || msg.to; // comma separated list of addressees
sendopts.subject = msg.topic || msg.title || "Message from Node-RED"; // subject line
if (Buffer.isBuffer(msg.payload)) { // if it's a buffer in the payload then auto create an attachment instead
if (!msg.filename) {
var fe = "bin";
if ((msg.payload[0] === 0xFF)&&(msg.payload[1] === 0xD8)) { fe = "jpg"; }
if ((msg.payload[0] === 0x47)&&(msg.payload[1] === 0x49)) { fe = "gif"; } //46
if ((msg.payload[0] === 0x42)&&(msg.payload[1] === 0x4D)) { fe = "bmp"; }
if ((msg.payload[0] === 0x89)&&(msg.payload[1] === 0x50)) { fe = "png"; } //4E
msg.filename = "attachment."+fe;
}
sendopts.attachments = [ { content: msg.payload, filename:(msg.filename.replace(/^.*[\\\/]/, '') || "file.bin") } ];
if (msg.hasOwnProperty("headers") && msg.headers.hasOwnProperty("content-type")) {
sendopts.attachments[0].contentType = msg.headers["content-type"];
}
// Create some body text..
sendopts.text = RED._("email.default-message",{filename:(msg.filename.replace(/^.*[\\\/]/, '') || "file.bin"),description:(msg.hasOwnProperty("description") ? "\n\n"+msg.description : "")});
}
else {
var payload = RED.util.ensureString(msg.payload);
sendopts.text = payload; // plaintext body
if (/<[a-z][\s\S]*>/i.test(payload)) { sendopts.html = payload; } // html body
if (msg.attachments) { sendopts.attachments = msg.attachments; } // add attachments
}
smtpTransport.sendMail(sendopts, function(error, info) {
if (error) {
node.error(error,msg);
node.status({fill:"red",shape:"ring",text:"email.status.sendfail"});
} else {
node.log(RED._("email.status.messagesent",{response:info.response}));
node.status({});
}
});
}
else { node.warn(RED._("email.errors.nocredentials")); }
}
else { node.warn(RED._("email.errors.nopayload")); }
});
}
RED.nodes.registerType("e-mail",EmailNode,{
credentials: {
userid: {type:"text"},
password: {type: "password"},
global: { type:"boolean"}
}
});
function EmailInNode(n) {
RED.nodes.createNode(this,n);
this.name = n.name;
this.repeat = n.repeat * 1000 || 300000;
this.inserver = n.server || (globalkeys && globalkeys.server) || "imap.gmail.com";
this.inport = n.port || (globalkeys && globalkeys.port) || "993";
this.box = n.box || "INBOX";
var flag = false;
if (this.credentials && this.credentials.hasOwnProperty("userid")) {
this.userid = this.credentials.userid;
} else {
if (globalkeys) {
this.userid = globalkeys.user;
flag = true;
} else {
this.error(RED._("email.errors.nouserid"));
}
}
if (this.credentials && this.credentials.hasOwnProperty("password")) {
this.password = this.credentials.password;
} else {
if (globalkeys) {
this.password = globalkeys.pass;
flag = true;
} else {
this.error(RED._("email.errors.nopassword"));
}
}
if (flag) {
RED.nodes.addCredentials(n.id,{userid:this.userid, password:this.password, global:true});
}
var node = this;
this.interval_id = null;
var oldmail = {};
var imap = new Imap({
user: node.userid,
password: node.password,
host: node.inserver,
port: node.inport,
tls: true,
tlsOptions: { rejectUnauthorized: false },
connTimeout: node.repeat,
authTimeout: node.repeat
});
if (!isNaN(this.repeat) && this.repeat > 0) {
this.interval_id = setInterval( function() {
node.emit("input",{});
}, this.repeat );
}
this.on("input", function(msg) {
imap.once('ready', function() {
node.status({fill:"blue",shape:"dot",text:"email.status.fetching"});
var pay = {};
imap.openBox(node.box, false, function(err, box) {
if (err) {
node.status({fill:"red",shape:"ring",text:"email.status.foldererror"});
node.error(RED._("email.errors.fetchfail",{folder:node.box}),err);
}
else {
if (box.messages.total > 0) {
//var f = imap.seq.fetch(box.messages.total + ':*', { markSeen:true, bodies: ['HEADER.FIELDS (FROM SUBJECT DATE TO CC BCC)','TEXT'] });
var f = imap.seq.fetch(box.messages.total + ':*', { markSeen:true, bodies: ['HEADER','TEXT'] });
f.on('message', function(msg, seqno) {
node.log(RED._("email.status.message",{number: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') {
var head = Imap.parseHeader(buffer);
if (head.hasOwnProperty("from")) { pay.from = head.from[0]; }
if (head.hasOwnProperty("subject")) { pay.topic = head.subject[0]; }
if (head.hasOwnProperty("date")) { pay.date = head.date[0]; }
pay.header = head;
} else {
var parts = buffer.split("Content-Type");
for (var p = 0; p < parts.length; p++) {
if (parts[p].indexOf("text/plain") >= 0) {
pay.payload = parts[p].split("\n").slice(1,-2).join("\n").trim();
}
else if (parts[p].indexOf("text/html") >= 0) {
pay.html = parts[p].split("\n").slice(1,-2).join("\n").trim();
} else {
pay.payload = parts[0];
}
}
//pay.body = buffer;
}
});
});
msg.on('end', function() {
//node.log('finished: '+prefix);
});
});
f.on('error', function(err) {
node.warn(RED._("email.errors.messageerror",{error:err}));
node.status({fill:"red",shape:"ring",text:"email.status.messageerror"});
});
f.on('end', function() {
delete(pay._msgid);
if (JSON.stringify(pay) !== oldmail) {
oldmail = JSON.stringify(pay);
node.send(pay);
node.log(RED._("email.status.newemail",{topic:pay.topic}));
}
else { node.log(RED._("email.status.duplicate",{topic:pay.topic})); }
//node.status({fill:"green",shape:"dot",text:"node-red:common.status.ok"});
node.status({});
});
}
else {
node.log(RED._("email.status.inboxzero"));
//node.status({fill:"green",shape:"dot",text:"node-red:common.status.ok"});
node.status({});
}
}
imap.end();
});
});
node.status({fill:"grey",shape:"dot",text:"node-red:common.status.connecting"});
imap.connect();
});
imap.on('error', function(err) {
node.log(err);
node.status({fill:"red",shape:"ring",text:"email.status.connecterror"});
});
this.on("close", function() {
if (this.interval_id != null) {
clearInterval(this.interval_id);
}
if (imap) { imap.destroy(); }
});
node.emit("input",{});
}
RED.nodes.registerType("e-mail in",EmailInNode,{
credentials: {
userid: {type:"text"},
password: {type: "password"},
global: { type:"boolean"}
}
});
};