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