mirror of https://github.com/TryGhost/Ghost.git
53 lines
2.0 KiB
JavaScript
53 lines
2.0 KiB
JavaScript
var crypto = require('crypto'),
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fs = require('fs-extra'),
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path = require('path'),
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config = require('../../config'),
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urlService = require('../../services/url');
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// ### servePublicFile Middleware
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// Handles requests to robots.txt and favicon.ico (and caches them)
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function servePublicFile(file, type, maxAge) {
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var content,
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publicFilePath = config.get('paths').publicFilePath,
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filePath,
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blogRegex = /(\{\{blog-url\}\})/g,
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apiRegex = /(\{\{api-url\}\})/g;
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filePath = file.match(/^public/) ? path.join(publicFilePath, file.replace(/^public/, '')) : path.join(publicFilePath, file);
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return function servePublicFile(req, res, next) {
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if (req.path === '/' + file) {
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if (content) {
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res.writeHead(200, content.headers);
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res.end(content.body);
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} else {
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fs.readFile(filePath, function readFile(err, buf) {
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if (err) {
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return next(err);
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}
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if (type === 'text/xsl' || type === 'text/plain' || type === 'application/javascript') {
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buf = buf.toString().replace(blogRegex, urlService.utils.urlFor('home', true).replace(/\/$/, ''));
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buf = buf.toString().replace(apiRegex, urlService.utils.urlFor('api', {cors: true}, true));
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}
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content = {
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headers: {
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'Content-Type': type,
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'Content-Length': buf.length,
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ETag: '"' + crypto.createHash('md5').update(buf, 'utf8').digest('hex') + '"',
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'Cache-Control': 'public, max-age=' + maxAge
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},
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body: buf
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};
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res.writeHead(200, content.headers);
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res.end(content.body);
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});
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}
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} else {
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return next();
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}
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};
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}
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module.exports = servePublicFile;
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