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server.js
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server.js
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#!/bin/env node
var q = require('q');
var express = require('express');
var fs = require('fs');
var bodyParser = require('body-parser');
var url = require("url");
var yaml = require("js-yaml");
var MessageStore = require("./message-store.js");
var MessageProcessor = require("./message-processor.js");
var MandrillGateway = require("./mandrill-gateway.js");
var EBUIApp = function() {
var self = this;
/* ================================================================ */
/* Helper functions. */
/* ================================================================ */
/**
* Set up server IP address and port # using env variables/defaults.
*/
self.setupVariables = function() {
// Set the environment variables we need.
self.ipaddress = process.env.OPENSHIFT_NODEJS_IP || "127.0.0.1";
self.port = process.env.OPENSHIFT_NODEJS_PORT || 8080;
self.dbhost = process.env.OPENSHIFT_MONGODB_DB_HOST || self.ipaddress;
self.dbport = process.env.OPENSHIFT_MONGODB_DB_PORT || 27017;
self.dbname = process.env.OPENSHIFT_MONGODB_DB_NAME || 'mailflowjs';
self.dbusername = process.env.OPENSHIFT_MONGODB_DB_USERNAME || '';
self.dbpassword = process.env.OPENSHIFT_MONGODB_DB_PASSWORD || '';
self.mandrillKey = process.env.MANDRILL_API_KEY || '';
self.fromEmail = process.env.FROM_EMAIL || 'support@cloudfier.com';
self.fromName = process.env.FROM_NAME || 'Cloudfier Support';
self.baseUrl = process.env.BASE_URL || ("http://" + self.ipaddress + "/");
self.kirraBaseUrl = process.env.KIRRA_BASE_URL || "http://develop.cloudfier.com/";
self.kirraApiUrl = process.env.KIRRA_API_URL || (self.kirraBaseUrl + "services/api-v2/");
console.log("base url: \"" + self.baseUrl + '"');
console.log("Kirra Base url: \"" + self.kirraBaseUrl + '"');
console.log("Kirra API url: \"" + self.kirraApiUrl + '"');
console.log("fromEmail: \"" + self.fromEmail + '"');
console.log("fromName: \"" + self.fromName + '"');
};
/**
* terminator === the termination handler
* Terminate server on receipt of the specified signal.
* @param {string} sig Signal to terminate on.
*/
self.terminator = function(sig) {
if (typeof sig === "string") {
console.log('%s: Received %s - terminating the app ...',
Date(Date.now()), sig);
process.exit(1);
}
console.log('%s: Node server stopped.', Date(Date.now()));
};
/**
* Setup termination handlers (for exit and a list of signals).
*/
self.setupTerminationHandlers = function() {
// Process on exit and signals.
process.on('exit', function() {
self.terminator();
});
// Removed 'SIGPIPE' from the list - bugz 852598.
['SIGHUP', 'SIGINT', 'SIGQUIT', 'SIGILL', 'SIGTRAP', 'SIGABRT',
'SIGBUS', 'SIGFPE', 'SIGUSR1', 'SIGSEGV', 'SIGUSR2', 'SIGTERM'
].forEach(function(element, index, array) {
process.on(element, function() {
self.terminator(element);
});
});
};
/**
* Initialize the server (express) and create the routes and register
* the handlers.
*/
self.initializeServer = function() {
self.app = express();
self.app.use(bodyParser.urlencoded({
extended: true
}));
self.app.use(bodyParser.json());
self.app.use(function(req, res, next) {
req.messageStore = self.messageStore;
next();
});
self.app.get("/", function(req, res) {
res.json({
messages: self.resolveUrl('messages/')
});
});
self.app.post("/events/", function(req, res) {
return self.mandrillGateway.handleInboundEmail(req, res, self.messageStore);
});
self.app.get("/events/", function(req, res) {
// mandrill sends a HEAD
res.send(204);
});
self.app.get("/messages/", function(req, res) {
req.messageStore.getAllMessages().then(function(docs) {
res.json(docs || []);
});
});
};
/**
* Initializes the application.
*/
self.initialize = function() {
self.setupVariables();
self.setupTerminationHandlers();
self.messageStore = new MessageStore(self.dbhost, self.dbport, self.dbname, self.dbusername, self.dbpassword);
self.mandrillGateway = new MandrillGateway(self.mandrillKey, self.fromEmail, self.fromName);
self.messageProcessor = new MessageProcessor(self.mandrillGateway, self.messageStore, self.kirraBaseUrl, self.kirraApiUrl);
// Create the express server and routes.
self.initializeServer();
};
/**
* Start the server (starts up the application).
*/
self.start = function() {
// Start the app on the specific interface (and port).
self.app.listen(self.port, self.ipaddress, function() {
console.log('%s: Node server started on %s:%d ...',
Date(Date.now()), self.ipaddress, self.port);
});
var interval;
interval = setInterval(function() {
console.log('Processing pending messages');
self.processPendingMessages();
console.log('Done');
}, 10000);
};
self.processPendingMessages = function () {
return self.messageStore.getPendingMessages('messages').each(function (message) {
self.processPendingMessage(message);
});
};
self.processPendingMessage = function (message) {
console.log("Processing " + message._id + "...");
return self.messageProcessor.processPendingMessage(message);
};
self.resolveUrl = function(relative) {
return self.baseUrl + relative;
};
};
var ebuiApp = new EBUIApp();
ebuiApp.initialize();
ebuiApp.start();
var app = exports = module.exports = ebuiApp;