42 lines
1.2 KiB
JavaScript
42 lines
1.2 KiB
JavaScript
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Author Tobias Koppers @sokra
|
|
*/
|
|
"use strict";
|
|
|
|
function getCacheId(request, withContext) {
|
|
return JSON.stringify({
|
|
context: withContext ? request.context : "",
|
|
path: request.path,
|
|
query: request.query,
|
|
request: request.request
|
|
});
|
|
}
|
|
|
|
module.exports = class UnsafeCachePlugin {
|
|
constructor(source, filterPredicate, cache, withContext, target) {
|
|
this.source = source;
|
|
this.filterPredicate = filterPredicate;
|
|
this.withContext = withContext;
|
|
this.cache = cache || {};
|
|
this.target = target;
|
|
}
|
|
|
|
apply(resolver) {
|
|
const target = resolver.ensureHook(this.target);
|
|
resolver.getHook(this.source).tapAsync("UnsafeCachePlugin", (request, resolveContext, callback) => {
|
|
if(!this.filterPredicate(request)) return callback();
|
|
const cacheId = getCacheId(request, this.withContext);
|
|
const cacheEntry = this.cache[cacheId];
|
|
if(cacheEntry) {
|
|
return callback(null, cacheEntry);
|
|
}
|
|
resolver.doResolve(target, request, null, resolveContext, (err, result) => {
|
|
if(err) return callback(err);
|
|
if(result) return callback(null, this.cache[cacheId] = result);
|
|
callback();
|
|
});
|
|
});
|
|
}
|
|
};
|