49 lines
1.7 KiB
JavaScript
49 lines
1.7 KiB
JavaScript
/*
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Copyright 2018 Google LLC
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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import { CacheableResponse, } from './CacheableResponse.js';
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import './_version.js';
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/**
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* A class implementing the `cacheWillUpdate` lifecycle callback. This makes it
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* easier to add in cacheability checks to requests made via Workbox's built-in
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* strategies.
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*
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* @memberof workbox-cacheable-response
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*/
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class CacheableResponsePlugin {
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/**
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* To construct a new CacheableResponsePlugin instance you must provide at
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* least one of the `config` properties.
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*
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* If both `statuses` and `headers` are specified, then both conditions must
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* be met for the `Response` to be considered cacheable.
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*
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* @param {Object} config
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* @param {Array<number>} [config.statuses] One or more status codes that a
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* `Response` can have and be considered cacheable.
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* @param {Object<string,string>} [config.headers] A mapping of header names
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* and expected values that a `Response` can have and be considered cacheable.
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* If multiple headers are provided, only one needs to be present.
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*/
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constructor(config) {
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/**
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* @param {Object} options
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* @param {Response} options.response
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* @return {Response|null}
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* @private
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*/
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this.cacheWillUpdate = async ({ response }) => {
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if (this._cacheableResponse.isResponseCacheable(response)) {
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return response;
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}
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return null;
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};
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this._cacheableResponse = new CacheableResponse(config);
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}
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}
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export { CacheableResponsePlugin };
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