38 lines
1.1 KiB
JavaScript
38 lines
1.1 KiB
JavaScript
// # CacheControl Middleware
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// Usage: cacheControl(profile), where profile is one of 'public' or 'private'
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// After: checkIsPrivate
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// Before: routes
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// App: Admin|Blog|API
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//
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// Allows each app to declare its own default caching rules
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var _ = require('lodash'),
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config = require('../config'),
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cacheControl;
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cacheControl = function cacheControl(options) {
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/*jslint unparam:true*/
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var profiles = {
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public: 'public, max-age=' + config.get('caching:frontend:maxAge'),
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private: 'no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0'
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},
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output;
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if (_.isString(options) && profiles.hasOwnProperty(options)) {
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output = profiles[options];
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}
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return function cacheControlHeaders(req, res, next) {
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if (output) {
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if (res.isPrivateBlog) {
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res.set({'Cache-Control': profiles.private});
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} else {
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res.set({'Cache-Control': output});
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}
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}
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next();
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};
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};
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module.exports = cacheControl;
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