denis-sokolov/portent

'use strict';

var fs = require('fs');

var Promise = require('promise');

var read = Promise.denodeify(fs.readFile);

module.exports = function(directory){
    return {
        middleware: function(req, res, next){
            if (req.path !== '/.htaccess')
                return next();

            read(__dirname + '/htaccess', 'utf8').then(function(core){
                return read(directory + '/htaccess', 'utf8').catch(function(err){
                    if (err.code === 'ENOENT')
                        return "";
                    throw err;
                }).then(function(custom){
                    res.set('Content-Type', 'application/octet-stream');
                    res.send(core + '\n' + custom);
                });
            }).catch(next);
        },
        paths: function(){
            return ['.htaccess'];
        }
    };
};