passport.js

'use strict';

/**
 * Module dependencies.
 */
var passport = require('passport'),
	User = require('mongoose').model('User'),
	path = require('path'),
	_ = require('lodash'),
	glob = require('glob');
/**
 * Module init function.
 */
module.exports = function() {
	// Serialize sessions
	passport.serializeUser(function(user, done) {
		done(null, user.id);
	});

	// Deserialize sessions
	passport.deserializeUser(function(id, done) {
		User.findOne({
			_id: id
		}, '-salt -password', function(err, user) {
			done(err, user);
		});
	});

require(path.resolve('./strategies/local.js'))();
	// Initialize strategies
	getGlobbedFiles('./strategies/*.js').forEach(function(strategy) {
		require(path.resolve(strategy))();
	});
};

function getGlobbedFiles(globPatterns, removeRoot) {
	// For context switching
	var _this = this;

	// URL paths regex
	var urlRegex = new RegExp('^(?:[a-z]+:)?\/\/', 'i');

	// The output array
	var output = [];

	// If glob pattern is array so we use each pattern in a recursive way, otherwise we use glob
	if (_.isArray(globPatterns)) {
		globPatterns.forEach(function(globPattern) {
			output = _.union(output, _this.getGlobbedFiles(globPattern, removeRoot));
		});
	} else if (_.isString(globPatterns)) {
		if (urlRegex.test(globPatterns)) {
			output.push(globPatterns);
		} else {
			var files = glob(globPatterns, {sync: true});
				if (removeRoot) {
					files = files.map(function(file) {
						return file.replace(removeRoot, '');
					});
				}
				output = _.union(output, files);

		}
	}

	return output;
};