87 lines
2.6 KiB
JavaScript
87 lines
2.6 KiB
JavaScript
// OpenShift sample Node application
|
|
var express = require('express');
|
|
var fs = require('fs');
|
|
var app = express();
|
|
var eps = require('ejs');
|
|
|
|
app.engine('html', require('ejs').renderFile);
|
|
|
|
var port = process.env.PORT || process.env.OPENSHIFT_NODEJS_PORT || 8080;
|
|
var ip = process.env.IP || process.env.OPENSHIFT_NODEJS_IP || '0.0.0.0';
|
|
var mongoURL = process.env.OPENSHIFT_MONGODB_DB_URL || process.env.MONGO_URL;
|
|
var mongoURLLabel = "";
|
|
if (mongoURL == null && process.env.DATABASE_SERVICE_NAME) {
|
|
var mongoServiceName = process.env.DATABASE_SERVICE_NAME.toUpperCase();
|
|
var mongoHost = process.env[mongoServiceName + "_SERVICE_HOST"];
|
|
var mongoPort = process.env[mongoServiceName + "_SERVICE_PORT"];
|
|
var mongoUser = process.env.MONGODB_USER
|
|
if (mongoHost && mongoPort && process.env.MONGODB_DATABASE) {
|
|
mongoURLLabel = mongoURL = 'mongodb://';
|
|
if (process.env.MONGODB_USER && process.env.MONGODB_PASSWORD) {
|
|
mongoURL += process.env.MONGODB_USER + ':' + process.env.MONGODB_PASSWORD + '@';
|
|
}
|
|
// Provide UI label that excludes user id and pw
|
|
|
|
mongoURLLabel += mongoHost + ':' + mongoPort + '/' + process.env.MONGODB_DATABASE;
|
|
mongoURL += mongoHost + ':' + mongoPort + '/' + process.env.MONGODB_DATABASE;
|
|
}
|
|
}
|
|
var db = null;
|
|
var dbDetails = new Object();
|
|
|
|
var initDb = function(callback) {
|
|
if (mongoURL == null) return;
|
|
|
|
var mongodb = require('mongodb');
|
|
if (mongodb == null) return;
|
|
|
|
mongodb.connect(mongoURL, function(err, conn) {
|
|
if (err) {
|
|
callback(err);
|
|
return;
|
|
}
|
|
|
|
db = conn;
|
|
dbDetails.databaseName = db.databaseName;
|
|
dbDetails.url = mongoURLLabel;
|
|
dbDetails.type = 'MongoDB';
|
|
|
|
console.log("Connected to MongoDB at: " + mongoURL);
|
|
});
|
|
};
|
|
|
|
app.get('/', function (req, res) {
|
|
if (db) {
|
|
var col = db.collection('counts');
|
|
// Create a document with request IP and current time of request
|
|
col.insert({ip: req.ip, date: Date.now()});
|
|
col.count(function(err, count){
|
|
res.render('index.html', { pageCountMessage : count, dbInfo: dbDetails });
|
|
});
|
|
} else {
|
|
res.render('index.html', { pageCountMessage : null});
|
|
}
|
|
});
|
|
|
|
app.get('/pagecount', function (req, res) {
|
|
if (db) {
|
|
db.collection('counts').count(function(err, count ){
|
|
res.send('{ pageCount: ' + count +'}');
|
|
});
|
|
} else {
|
|
res.send('{ pageCount: -1 }');
|
|
}
|
|
});
|
|
|
|
// error handling
|
|
app.use(function(err, req, res, next){
|
|
console.error(err.stack);
|
|
res.status(500).send('Something bad happened!');
|
|
});
|
|
|
|
initDb(function(err){
|
|
console.log('Error connecting to Mongo. Message:\n'+err);
|
|
});
|
|
|
|
app.listen(port, ip);
|
|
console.log('Server running on ' + ip + ':' + port);
|