86 lines
2.8 KiB
JavaScript
86 lines
2.8 KiB
JavaScript
/*global require,process,console*/
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/**
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* Usage:
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*
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* npm install minimist express
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* node app.js [options]
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*/
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(function () {
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"use strict";
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var BUNDLE_FILE = 'bundles.json',
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options = require('minimist')(process.argv.slice(2)),
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express = require('express'),
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app = express(),
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fs = require('fs'),
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request = require('request');
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// Defaults
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options.port = options.port || options.p || 8080;
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options.host = options.host || options.h || 'localhost'
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options.directory = options.directory || options.D || '.';
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['include', 'exclude', 'i', 'x'].forEach(function (opt) {
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options[opt] = options[opt] || [];
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// Make sure includes/excludes always end up as arrays
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options[opt] = Array.isArray(options[opt]) ?
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options[opt] : [options[opt]];
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});
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options.include = options.include.concat(options.i);
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options.exclude = options.exclude.concat(options.x);
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// Show command line options
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if (options.help || options.h) {
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console.log("\nUsage: node app.js [options]\n");
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console.log("Options:");
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console.log(" --help, -h Show this message.");
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console.log(" --port, -p <number> Specify port.");
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console.log(" --include, -i <bundle> Include the specified bundle.");
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console.log(" --exclude, -x <bundle> Exclude the specified bundle.");
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console.log(" --directory, -D <bundle> Serve files from specified directory.");
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console.log("");
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process.exit(0);
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}
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app.disable('x-powered-by');
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// Override bundles.json for HTTP requests
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app.use('/' + BUNDLE_FILE, function (req, res) {
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var bundles;
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try {
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bundles = JSON.parse(fs.readFileSync(BUNDLE_FILE, 'utf8'));
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} catch (e) {
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bundles = [];
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}
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// Handle command line inclusions/exclusions
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bundles = bundles.concat(options.include);
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bundles = bundles.filter(function (bundle) {
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return options.exclude.indexOf(bundle) === -1;
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});
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bundles = bundles.filter(function (bundle, index) { // Uniquify
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return bundles.indexOf(bundle) === index;
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});
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res.send(JSON.stringify(bundles));
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});
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app.use('/proxyUrl', function proxyRequest(req, res, next) {
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console.log('Proxying request to: ', req.query.url);
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req.pipe(request({
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url: req.query.url,
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strictSSL: false
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}).on('error', next)).pipe(res);
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});
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// Expose everything else as static files
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app.use(express['static'](options.directory));
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// Finally, open the HTTP server and log the instance to the console
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app.listen(options.port, options.host, function() {
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console.log('Open MCT application running at %s:%s', options.host, options.port)
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});
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}());
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