mirror of https://github.com/TryGhost/Ghost.git
65 lines
2.4 KiB
JavaScript
65 lines
2.4 KiB
JavaScript
const crypto = require('crypto');
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const fs = require('fs-extra');
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const path = require('path');
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const config = require('../../../config');
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const urlUtils = require('../../../lib/url-utils');
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function createPublicFileMiddleware(file, type, maxAge) {
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let content;
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const publicFilePath = config.get('paths').publicFilePath;
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const filePath = file.match(/^public/) ? path.join(publicFilePath, file.replace(/^public/, '')) : path.join(publicFilePath, file);
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const blogRegex = /(\{\{blog-url\}\})/g;
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const adminRegex = /(\{\{admin-url\}\})/g;
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const apiRegex = /(\{\{api-url\}\})/g;
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return function servePublicFile(req, res, next) {
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if (content) {
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res.writeHead(200, content.headers);
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return res.end(content.body);
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}
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fs.readFile(filePath, (err, buf) => {
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if (err) {
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return next(err);
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}
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let str = buf.toString();
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if (type === 'text/xsl' || type === 'text/plain' || type === 'application/javascript') {
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str = str.replace(blogRegex, urlUtils.urlFor('home', true).replace(/\/$/, ''));
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str = str.replace(apiRegex, urlUtils.urlFor('api', {cors: true, version: 'v0.1', versionType: 'content'}, true));
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str = str.replace(adminRegex, urlUtils.urlFor('admin', true).replace(/\/$/, ''));
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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': Buffer.from(str).length,
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ETag: `"${crypto.createHash('md5').update(str, 'utf8').digest('hex')}"`,
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'Cache-Control': `public, max-age=${maxAge}`
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},
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body: str
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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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}
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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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const publicFileMiddleware = createPublicFileMiddleware(file, type, maxAge);
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return function servePublicFile(req, res, next) {
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if (req.path === '/' + file) {
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return publicFileMiddleware(req, res, next);
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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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module.exports.servePublicFile = servePublicFile;
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module.exports.createPublicFileMiddleware = createPublicFileMiddleware;
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