discourse/public/javascripts/workbox/workbox-cacheable-response....

201 lines
6.6 KiB
JavaScript

this.workbox = this.workbox || {};
this.workbox.cacheableResponse = (function (exports, WorkboxError_mjs, assert_mjs, getFriendlyURL_mjs, logger_mjs) {
'use strict';
try {
self['workbox:cacheable-response:4.3.1'] && _();
} catch (e) {} // eslint-disable-line
/*
Copyright 2018 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
/**
* This class allows you to set up rules determining what
* status codes and/or headers need to be present in order for a
* [`Response`](https://developer.mozilla.org/en-US/docs/Web/API/Response)
* to be considered cacheable.
*
* @memberof workbox.cacheableResponse
*/
class CacheableResponse {
/**
* To construct a new CacheableResponse instance you must provide at least
* one of the `config` properties.
*
* If both `statuses` and `headers` are specified, then both conditions must
* be met for the `Response` to be considered cacheable.
*
* @param {Object} config
* @param {Array<number>} [config.statuses] One or more status codes that a
* `Response` can have and be considered cacheable.
* @param {Object<string,string>} [config.headers] A mapping of header names
* and expected values that a `Response` can have and be considered cacheable.
* If multiple headers are provided, only one needs to be present.
*/
constructor(config = {}) {
{
if (!(config.statuses || config.headers)) {
throw new WorkboxError_mjs.WorkboxError('statuses-or-headers-required', {
moduleName: 'workbox-cacheable-response',
className: 'CacheableResponse',
funcName: 'constructor'
});
}
if (config.statuses) {
assert_mjs.assert.isArray(config.statuses, {
moduleName: 'workbox-cacheable-response',
className: 'CacheableResponse',
funcName: 'constructor',
paramName: 'config.statuses'
});
}
if (config.headers) {
assert_mjs.assert.isType(config.headers, 'object', {
moduleName: 'workbox-cacheable-response',
className: 'CacheableResponse',
funcName: 'constructor',
paramName: 'config.headers'
});
}
}
this._statuses = config.statuses;
this._headers = config.headers;
}
/**
* Checks a response to see whether it's cacheable or not, based on this
* object's configuration.
*
* @param {Response} response The response whose cacheability is being
* checked.
* @return {boolean} `true` if the `Response` is cacheable, and `false`
* otherwise.
*/
isResponseCacheable(response) {
{
assert_mjs.assert.isInstance(response, Response, {
moduleName: 'workbox-cacheable-response',
className: 'CacheableResponse',
funcName: 'isResponseCacheable',
paramName: 'response'
});
}
let cacheable = true;
if (this._statuses) {
cacheable = this._statuses.includes(response.status);
}
if (this._headers && cacheable) {
cacheable = Object.keys(this._headers).some(headerName => {
return response.headers.get(headerName) === this._headers[headerName];
});
}
{
if (!cacheable) {
logger_mjs.logger.groupCollapsed(`The request for ` + `'${getFriendlyURL_mjs.getFriendlyURL(response.url)}' returned a response that does ` + `not meet the criteria for being cached.`);
logger_mjs.logger.groupCollapsed(`View cacheability criteria here.`);
logger_mjs.logger.log(`Cacheable statuses: ` + JSON.stringify(this._statuses));
logger_mjs.logger.log(`Cacheable headers: ` + JSON.stringify(this._headers, null, 2));
logger_mjs.logger.groupEnd();
const logFriendlyHeaders = {};
response.headers.forEach((value, key) => {
logFriendlyHeaders[key] = value;
});
logger_mjs.logger.groupCollapsed(`View response status and headers here.`);
logger_mjs.logger.log(`Response status: ` + response.status);
logger_mjs.logger.log(`Response headers: ` + JSON.stringify(logFriendlyHeaders, null, 2));
logger_mjs.logger.groupEnd();
logger_mjs.logger.groupCollapsed(`View full response details here.`);
logger_mjs.logger.log(response.headers);
logger_mjs.logger.log(response);
logger_mjs.logger.groupEnd();
logger_mjs.logger.groupEnd();
}
}
return cacheable;
}
}
/*
Copyright 2018 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
/**
* A class implementing the `cacheWillUpdate` lifecycle callback. This makes it
* easier to add in cacheability checks to requests made via Workbox's built-in
* strategies.
*
* @memberof workbox.cacheableResponse
*/
class Plugin {
/**
* To construct a new cacheable response Plugin instance you must provide at
* least one of the `config` properties.
*
* If both `statuses` and `headers` are specified, then both conditions must
* be met for the `Response` to be considered cacheable.
*
* @param {Object} config
* @param {Array<number>} [config.statuses] One or more status codes that a
* `Response` can have and be considered cacheable.
* @param {Object<string,string>} [config.headers] A mapping of header names
* and expected values that a `Response` can have and be considered cacheable.
* If multiple headers are provided, only one needs to be present.
*/
constructor(config) {
this._cacheableResponse = new CacheableResponse(config);
}
/**
* @param {Object} options
* @param {Response} options.response
* @return {boolean}
* @private
*/
cacheWillUpdate({
response
}) {
if (this._cacheableResponse.isResponseCacheable(response)) {
return response;
}
return null;
}
}
/*
Copyright 2018 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
exports.CacheableResponse = CacheableResponse;
exports.Plugin = Plugin;
return exports;
}({}, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private));
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