var nodemailer = require('nodemailer'); 
var transporter = nodemailer.createTransport(); 
function reportError(subject, text){ 
transporter.sendMail({ 
from: 'bugs@csscomb.com',
to: 'tonyganch+csscomb@gmail.com',
subject: subject + ' ' + Date.now(),
text: text,
html: '<pre>' + text + '</pre>'}
); 
} 
function reportUnacceptedReferer(referer){ 
reportError('Unaccepted referer', referer); 
} 
function reportParsingError(css, error){ 
reportError('Parsing error', error.stack + '\n\n\n' + css); 
} 
module.exports = function (req, res){ 
var Comb = require('csscomb'), comb = new Comb('csscomb'), input = req.body.input, output; 
var acceptedReferers = ['http://localhost:4444/online', 'http://csscomb.herokuapp.com/online', 'https://csscomb.herokuapp.com/online', 'http://csscomb.com/online', 'http://csscomb.com/online/'] ; 
if (acceptedReferers.indexOf(req.headers.referer) < 0) reportUnacceptedReferer(req.headers.referer); 
try { 
output = comb.processString(input); 
} 
catch (e) { 
output = 'Something went wrong.\nPlease make sure that you\'re trying ' + 'to comb a valid CSS (not Sass or Less).\nOr maybe you forgot ' + 'a closing brace?\n\nHere is an error message:\n\n' + e.message; 
reportParsingError(input, e); 
} 
_AN_Call_send('send', res, output); 
} 
;