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const utils = require('../utils/utils.js');
const crypto = require('crypto');
module.exports=
{
/**Sends the user an image from the specified fileName.
*
* @param result
* @param fileName
*/
main: function(result, fileName, cache)
{
//result.contentType = 'image/png';
var img = cache.get(fileName);
if(img == null)
{
utils.include("." + fileName).then(function(content)
{
var eTag = crypto.createHash('md5').update(content).digest('hex');
result.writeHead(200, {'Content-Type': 'image/png', 'Cache-Control': 'public, max-age=2678400', 'ETag': '"' + eTag + '"'});
result.write(content);
result.end();
cache.put(content);
});
}
else
{
var eTag = crypto.createHash('md5').update(img).digest('hex');
result.writeHead(200, {'Content-Type': 'image/png', 'Cache-Control': 'public, max-age=2678400', 'ETag': '"' + eTag + '"'});
result.write(img);
result.end();
}
}
};