1139 lines
35 KiB
JavaScript
1139 lines
35 KiB
JavaScript
this.workbox = this.workbox || {};
|
|
this.workbox.strategies = (function (exports, logger_mjs, assert_mjs, cacheNames_mjs, cacheWrapper_mjs, fetchWrapper_mjs, getFriendlyURL_mjs, WorkboxError_mjs) {
|
|
'use strict';
|
|
|
|
try {
|
|
self['workbox:strategies: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.
|
|
*/
|
|
|
|
const getFriendlyURL = url => {
|
|
const urlObj = new URL(url, location);
|
|
|
|
if (urlObj.origin === location.origin) {
|
|
return urlObj.pathname;
|
|
}
|
|
|
|
return urlObj.href;
|
|
};
|
|
|
|
const messages = {
|
|
strategyStart: (strategyName, request) => `Using ${strategyName} to ` + `respond to '${getFriendlyURL(request.url)}'`,
|
|
printFinalResponse: response => {
|
|
if (response) {
|
|
logger_mjs.logger.groupCollapsed(`View the final response here.`);
|
|
logger_mjs.logger.log(response);
|
|
logger_mjs.logger.groupEnd();
|
|
}
|
|
}
|
|
};
|
|
|
|
/*
|
|
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.
|
|
*/
|
|
/**
|
|
* An implementation of a [cache-first]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#cache-falling-back-to-network}
|
|
* request strategy.
|
|
*
|
|
* A cache first strategy is useful for assets that have been revisioned,
|
|
* such as URLs like `/styles/example.a8f5f1.css`, since they
|
|
* can be cached for long periods of time.
|
|
*
|
|
* If the network request fails, and there is no cache match, this will throw
|
|
* a `WorkboxError` exception.
|
|
*
|
|
* @memberof workbox.strategies
|
|
*/
|
|
|
|
class CacheFirst {
|
|
/**
|
|
* @param {Object} options
|
|
* @param {string} options.cacheName Cache name to store and retrieve
|
|
* requests. Defaults to cache names provided by
|
|
* [workbox-core]{@link workbox.core.cacheNames}.
|
|
* @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
|
|
* to use in conjunction with this caching strategy.
|
|
* @param {Object} options.fetchOptions Values passed along to the
|
|
* [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
|
|
* of all fetch() requests made by this strategy.
|
|
* @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)
|
|
*/
|
|
constructor(options = {}) {
|
|
this._cacheName = cacheNames_mjs.cacheNames.getRuntimeName(options.cacheName);
|
|
this._plugins = options.plugins || [];
|
|
this._fetchOptions = options.fetchOptions || null;
|
|
this._matchOptions = options.matchOptions || null;
|
|
}
|
|
/**
|
|
* This method will perform a request strategy and follows an API that
|
|
* will work with the
|
|
* [Workbox Router]{@link workbox.routing.Router}.
|
|
*
|
|
* @param {Object} options
|
|
* @param {Request} options.request The request to run this strategy for.
|
|
* @param {Event} [options.event] The event that triggered the request.
|
|
* @return {Promise<Response>}
|
|
*/
|
|
|
|
|
|
async handle({
|
|
event,
|
|
request
|
|
}) {
|
|
return this.makeRequest({
|
|
event,
|
|
request: request || event.request
|
|
});
|
|
}
|
|
/**
|
|
* This method can be used to perform a make a standalone request outside the
|
|
* context of the [Workbox Router]{@link workbox.routing.Router}.
|
|
*
|
|
* See "[Advanced Recipes](https://developers.google.com/web/tools/workbox/guides/advanced-recipes#make-requests)"
|
|
* for more usage information.
|
|
*
|
|
* @param {Object} options
|
|
* @param {Request|string} options.request Either a
|
|
* [`Request`]{@link https://developer.mozilla.org/en-US/docs/Web/API/Request}
|
|
* object, or a string URL, corresponding to the request to be made.
|
|
* @param {FetchEvent} [options.event] If provided, `event.waitUntil()` will
|
|
be called automatically to extend the service worker's lifetime.
|
|
* @return {Promise<Response>}
|
|
*/
|
|
|
|
|
|
async makeRequest({
|
|
event,
|
|
request
|
|
}) {
|
|
const logs = [];
|
|
|
|
if (typeof request === 'string') {
|
|
request = new Request(request);
|
|
}
|
|
|
|
{
|
|
assert_mjs.assert.isInstance(request, Request, {
|
|
moduleName: 'workbox-strategies',
|
|
className: 'CacheFirst',
|
|
funcName: 'makeRequest',
|
|
paramName: 'request'
|
|
});
|
|
}
|
|
|
|
let response = await cacheWrapper_mjs.cacheWrapper.match({
|
|
cacheName: this._cacheName,
|
|
request,
|
|
event,
|
|
matchOptions: this._matchOptions,
|
|
plugins: this._plugins
|
|
});
|
|
let error;
|
|
|
|
if (!response) {
|
|
{
|
|
logs.push(`No response found in the '${this._cacheName}' cache. ` + `Will respond with a network request.`);
|
|
}
|
|
|
|
try {
|
|
response = await this._getFromNetwork(request, event);
|
|
} catch (err) {
|
|
error = err;
|
|
}
|
|
|
|
{
|
|
if (response) {
|
|
logs.push(`Got response from network.`);
|
|
} else {
|
|
logs.push(`Unable to get a response from the network.`);
|
|
}
|
|
}
|
|
} else {
|
|
{
|
|
logs.push(`Found a cached response in the '${this._cacheName}' cache.`);
|
|
}
|
|
}
|
|
|
|
{
|
|
logger_mjs.logger.groupCollapsed(messages.strategyStart('CacheFirst', request));
|
|
|
|
for (let log of logs) {
|
|
logger_mjs.logger.log(log);
|
|
}
|
|
|
|
messages.printFinalResponse(response);
|
|
logger_mjs.logger.groupEnd();
|
|
}
|
|
|
|
if (!response) {
|
|
throw new WorkboxError_mjs.WorkboxError('no-response', {
|
|
url: request.url,
|
|
error
|
|
});
|
|
}
|
|
|
|
return response;
|
|
}
|
|
/**
|
|
* Handles the network and cache part of CacheFirst.
|
|
*
|
|
* @param {Request} request
|
|
* @param {FetchEvent} [event]
|
|
* @return {Promise<Response>}
|
|
*
|
|
* @private
|
|
*/
|
|
|
|
|
|
async _getFromNetwork(request, event) {
|
|
const response = await fetchWrapper_mjs.fetchWrapper.fetch({
|
|
request,
|
|
event,
|
|
fetchOptions: this._fetchOptions,
|
|
plugins: this._plugins
|
|
}); // Keep the service worker while we put the request to the cache
|
|
|
|
const responseClone = response.clone();
|
|
const cachePutPromise = cacheWrapper_mjs.cacheWrapper.put({
|
|
cacheName: this._cacheName,
|
|
request,
|
|
response: responseClone,
|
|
event,
|
|
plugins: this._plugins
|
|
});
|
|
|
|
if (event) {
|
|
try {
|
|
event.waitUntil(cachePutPromise);
|
|
} catch (error) {
|
|
{
|
|
logger_mjs.logger.warn(`Unable to ensure service worker stays alive when ` + `updating cache for '${getFriendlyURL_mjs.getFriendlyURL(request.url)}'.`);
|
|
}
|
|
}
|
|
}
|
|
|
|
return response;
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
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.
|
|
*/
|
|
/**
|
|
* An implementation of a
|
|
* [cache-only]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#cache-only}
|
|
* request strategy.
|
|
*
|
|
* This class is useful if you want to take advantage of any
|
|
* [Workbox plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}.
|
|
*
|
|
* If there is no cache match, this will throw a `WorkboxError` exception.
|
|
*
|
|
* @memberof workbox.strategies
|
|
*/
|
|
|
|
class CacheOnly {
|
|
/**
|
|
* @param {Object} options
|
|
* @param {string} options.cacheName Cache name to store and retrieve
|
|
* requests. Defaults to cache names provided by
|
|
* [workbox-core]{@link workbox.core.cacheNames}.
|
|
* @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
|
|
* to use in conjunction with this caching strategy.
|
|
* @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)
|
|
*/
|
|
constructor(options = {}) {
|
|
this._cacheName = cacheNames_mjs.cacheNames.getRuntimeName(options.cacheName);
|
|
this._plugins = options.plugins || [];
|
|
this._matchOptions = options.matchOptions || null;
|
|
}
|
|
/**
|
|
* This method will perform a request strategy and follows an API that
|
|
* will work with the
|
|
* [Workbox Router]{@link workbox.routing.Router}.
|
|
*
|
|
* @param {Object} options
|
|
* @param {Request} options.request The request to run this strategy for.
|
|
* @param {Event} [options.event] The event that triggered the request.
|
|
* @return {Promise<Response>}
|
|
*/
|
|
|
|
|
|
async handle({
|
|
event,
|
|
request
|
|
}) {
|
|
return this.makeRequest({
|
|
event,
|
|
request: request || event.request
|
|
});
|
|
}
|
|
/**
|
|
* This method can be used to perform a make a standalone request outside the
|
|
* context of the [Workbox Router]{@link workbox.routing.Router}.
|
|
*
|
|
* See "[Advanced Recipes](https://developers.google.com/web/tools/workbox/guides/advanced-recipes#make-requests)"
|
|
* for more usage information.
|
|
*
|
|
* @param {Object} options
|
|
* @param {Request|string} options.request Either a
|
|
* [`Request`]{@link https://developer.mozilla.org/en-US/docs/Web/API/Request}
|
|
* object, or a string URL, corresponding to the request to be made.
|
|
* @param {FetchEvent} [options.event] If provided, `event.waitUntil()` will
|
|
* be called automatically to extend the service worker's lifetime.
|
|
* @return {Promise<Response>}
|
|
*/
|
|
|
|
|
|
async makeRequest({
|
|
event,
|
|
request
|
|
}) {
|
|
if (typeof request === 'string') {
|
|
request = new Request(request);
|
|
}
|
|
|
|
{
|
|
assert_mjs.assert.isInstance(request, Request, {
|
|
moduleName: 'workbox-strategies',
|
|
className: 'CacheOnly',
|
|
funcName: 'makeRequest',
|
|
paramName: 'request'
|
|
});
|
|
}
|
|
|
|
const response = await cacheWrapper_mjs.cacheWrapper.match({
|
|
cacheName: this._cacheName,
|
|
request,
|
|
event,
|
|
matchOptions: this._matchOptions,
|
|
plugins: this._plugins
|
|
});
|
|
|
|
{
|
|
logger_mjs.logger.groupCollapsed(messages.strategyStart('CacheOnly', request));
|
|
|
|
if (response) {
|
|
logger_mjs.logger.log(`Found a cached response in the '${this._cacheName}'` + ` cache.`);
|
|
messages.printFinalResponse(response);
|
|
} else {
|
|
logger_mjs.logger.log(`No response found in the '${this._cacheName}' cache.`);
|
|
}
|
|
|
|
logger_mjs.logger.groupEnd();
|
|
}
|
|
|
|
if (!response) {
|
|
throw new WorkboxError_mjs.WorkboxError('no-response', {
|
|
url: request.url
|
|
});
|
|
}
|
|
|
|
return response;
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
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.
|
|
*/
|
|
const cacheOkAndOpaquePlugin = {
|
|
/**
|
|
* Returns a valid response (to allow caching) if the status is 200 (OK) or
|
|
* 0 (opaque).
|
|
*
|
|
* @param {Object} options
|
|
* @param {Response} options.response
|
|
* @return {Response|null}
|
|
*
|
|
* @private
|
|
*/
|
|
cacheWillUpdate: ({
|
|
response
|
|
}) => {
|
|
if (response.status === 200 || response.status === 0) {
|
|
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.
|
|
*/
|
|
/**
|
|
* An implementation of a
|
|
* [network first]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#network-falling-back-to-cache}
|
|
* request strategy.
|
|
*
|
|
* By default, this strategy will cache responses with a 200 status code as
|
|
* well as [opaque responses]{@link https://developers.google.com/web/tools/workbox/guides/handle-third-party-requests}.
|
|
* Opaque responses are are cross-origin requests where the response doesn't
|
|
* support [CORS]{@link https://enable-cors.org/}.
|
|
*
|
|
* If the network request fails, and there is no cache match, this will throw
|
|
* a `WorkboxError` exception.
|
|
*
|
|
* @memberof workbox.strategies
|
|
*/
|
|
|
|
class NetworkFirst {
|
|
/**
|
|
* @param {Object} options
|
|
* @param {string} options.cacheName Cache name to store and retrieve
|
|
* requests. Defaults to cache names provided by
|
|
* [workbox-core]{@link workbox.core.cacheNames}.
|
|
* @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
|
|
* to use in conjunction with this caching strategy.
|
|
* @param {Object} options.fetchOptions Values passed along to the
|
|
* [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
|
|
* of all fetch() requests made by this strategy.
|
|
* @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)
|
|
* @param {number} options.networkTimeoutSeconds If set, any network requests
|
|
* that fail to respond within the timeout will fallback to the cache.
|
|
*
|
|
* This option can be used to combat
|
|
* "[lie-fi]{@link https://developers.google.com/web/fundamentals/performance/poor-connectivity/#lie-fi}"
|
|
* scenarios.
|
|
*/
|
|
constructor(options = {}) {
|
|
this._cacheName = cacheNames_mjs.cacheNames.getRuntimeName(options.cacheName);
|
|
|
|
if (options.plugins) {
|
|
let isUsingCacheWillUpdate = options.plugins.some(plugin => !!plugin.cacheWillUpdate);
|
|
this._plugins = isUsingCacheWillUpdate ? options.plugins : [cacheOkAndOpaquePlugin, ...options.plugins];
|
|
} else {
|
|
// No plugins passed in, use the default plugin.
|
|
this._plugins = [cacheOkAndOpaquePlugin];
|
|
}
|
|
|
|
this._networkTimeoutSeconds = options.networkTimeoutSeconds;
|
|
|
|
{
|
|
if (this._networkTimeoutSeconds) {
|
|
assert_mjs.assert.isType(this._networkTimeoutSeconds, 'number', {
|
|
moduleName: 'workbox-strategies',
|
|
className: 'NetworkFirst',
|
|
funcName: 'constructor',
|
|
paramName: 'networkTimeoutSeconds'
|
|
});
|
|
}
|
|
}
|
|
|
|
this._fetchOptions = options.fetchOptions || null;
|
|
this._matchOptions = options.matchOptions || null;
|
|
}
|
|
/**
|
|
* This method will perform a request strategy and follows an API that
|
|
* will work with the
|
|
* [Workbox Router]{@link workbox.routing.Router}.
|
|
*
|
|
* @param {Object} options
|
|
* @param {Request} options.request The request to run this strategy for.
|
|
* @param {Event} [options.event] The event that triggered the request.
|
|
* @return {Promise<Response>}
|
|
*/
|
|
|
|
|
|
async handle({
|
|
event,
|
|
request
|
|
}) {
|
|
return this.makeRequest({
|
|
event,
|
|
request: request || event.request
|
|
});
|
|
}
|
|
/**
|
|
* This method can be used to perform a make a standalone request outside the
|
|
* context of the [Workbox Router]{@link workbox.routing.Router}.
|
|
*
|
|
* See "[Advanced Recipes](https://developers.google.com/web/tools/workbox/guides/advanced-recipes#make-requests)"
|
|
* for more usage information.
|
|
*
|
|
* @param {Object} options
|
|
* @param {Request|string} options.request Either a
|
|
* [`Request`]{@link https://developer.mozilla.org/en-US/docs/Web/API/Request}
|
|
* object, or a string URL, corresponding to the request to be made.
|
|
* @param {FetchEvent} [options.event] If provided, `event.waitUntil()` will
|
|
* be called automatically to extend the service worker's lifetime.
|
|
* @return {Promise<Response>}
|
|
*/
|
|
|
|
|
|
async makeRequest({
|
|
event,
|
|
request
|
|
}) {
|
|
const logs = [];
|
|
|
|
if (typeof request === 'string') {
|
|
request = new Request(request);
|
|
}
|
|
|
|
{
|
|
assert_mjs.assert.isInstance(request, Request, {
|
|
moduleName: 'workbox-strategies',
|
|
className: 'NetworkFirst',
|
|
funcName: 'handle',
|
|
paramName: 'makeRequest'
|
|
});
|
|
}
|
|
|
|
const promises = [];
|
|
let timeoutId;
|
|
|
|
if (this._networkTimeoutSeconds) {
|
|
const {
|
|
id,
|
|
promise
|
|
} = this._getTimeoutPromise({
|
|
request,
|
|
event,
|
|
logs
|
|
});
|
|
|
|
timeoutId = id;
|
|
promises.push(promise);
|
|
}
|
|
|
|
const networkPromise = this._getNetworkPromise({
|
|
timeoutId,
|
|
request,
|
|
event,
|
|
logs
|
|
});
|
|
|
|
promises.push(networkPromise); // Promise.race() will resolve as soon as the first promise resolves.
|
|
|
|
let response = await Promise.race(promises); // If Promise.race() resolved with null, it might be due to a network
|
|
// timeout + a cache miss. If that were to happen, we'd rather wait until
|
|
// the networkPromise resolves instead of returning null.
|
|
// Note that it's fine to await an already-resolved promise, so we don't
|
|
// have to check to see if it's still "in flight".
|
|
|
|
if (!response) {
|
|
response = await networkPromise;
|
|
}
|
|
|
|
{
|
|
logger_mjs.logger.groupCollapsed(messages.strategyStart('NetworkFirst', request));
|
|
|
|
for (let log of logs) {
|
|
logger_mjs.logger.log(log);
|
|
}
|
|
|
|
messages.printFinalResponse(response);
|
|
logger_mjs.logger.groupEnd();
|
|
}
|
|
|
|
if (!response) {
|
|
throw new WorkboxError_mjs.WorkboxError('no-response', {
|
|
url: request.url
|
|
});
|
|
}
|
|
|
|
return response;
|
|
}
|
|
/**
|
|
* @param {Object} options
|
|
* @param {Request} options.request
|
|
* @param {Array} options.logs A reference to the logs array
|
|
* @param {Event} [options.event]
|
|
* @return {Promise<Response>}
|
|
*
|
|
* @private
|
|
*/
|
|
|
|
|
|
_getTimeoutPromise({
|
|
request,
|
|
logs,
|
|
event
|
|
}) {
|
|
let timeoutId;
|
|
const timeoutPromise = new Promise(resolve => {
|
|
const onNetworkTimeout = async () => {
|
|
{
|
|
logs.push(`Timing out the network response at ` + `${this._networkTimeoutSeconds} seconds.`);
|
|
}
|
|
|
|
resolve((await this._respondFromCache({
|
|
request,
|
|
event
|
|
})));
|
|
};
|
|
|
|
timeoutId = setTimeout(onNetworkTimeout, this._networkTimeoutSeconds * 1000);
|
|
});
|
|
return {
|
|
promise: timeoutPromise,
|
|
id: timeoutId
|
|
};
|
|
}
|
|
/**
|
|
* @param {Object} options
|
|
* @param {number|undefined} options.timeoutId
|
|
* @param {Request} options.request
|
|
* @param {Array} options.logs A reference to the logs Array.
|
|
* @param {Event} [options.event]
|
|
* @return {Promise<Response>}
|
|
*
|
|
* @private
|
|
*/
|
|
|
|
|
|
async _getNetworkPromise({
|
|
timeoutId,
|
|
request,
|
|
logs,
|
|
event
|
|
}) {
|
|
let error;
|
|
let response;
|
|
|
|
try {
|
|
response = await fetchWrapper_mjs.fetchWrapper.fetch({
|
|
request,
|
|
event,
|
|
fetchOptions: this._fetchOptions,
|
|
plugins: this._plugins
|
|
});
|
|
} catch (err) {
|
|
error = err;
|
|
}
|
|
|
|
if (timeoutId) {
|
|
clearTimeout(timeoutId);
|
|
}
|
|
|
|
{
|
|
if (response) {
|
|
logs.push(`Got response from network.`);
|
|
} else {
|
|
logs.push(`Unable to get a response from the network. Will respond ` + `with a cached response.`);
|
|
}
|
|
}
|
|
|
|
if (error || !response) {
|
|
response = await this._respondFromCache({
|
|
request,
|
|
event
|
|
});
|
|
|
|
{
|
|
if (response) {
|
|
logs.push(`Found a cached response in the '${this._cacheName}'` + ` cache.`);
|
|
} else {
|
|
logs.push(`No response found in the '${this._cacheName}' cache.`);
|
|
}
|
|
}
|
|
} else {
|
|
// Keep the service worker alive while we put the request in the cache
|
|
const responseClone = response.clone();
|
|
const cachePut = cacheWrapper_mjs.cacheWrapper.put({
|
|
cacheName: this._cacheName,
|
|
request,
|
|
response: responseClone,
|
|
event,
|
|
plugins: this._plugins
|
|
});
|
|
|
|
if (event) {
|
|
try {
|
|
// The event has been responded to so we can keep the SW alive to
|
|
// respond to the request
|
|
event.waitUntil(cachePut);
|
|
} catch (err) {
|
|
{
|
|
logger_mjs.logger.warn(`Unable to ensure service worker stays alive when ` + `updating cache for '${getFriendlyURL_mjs.getFriendlyURL(request.url)}'.`);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return response;
|
|
}
|
|
/**
|
|
* Used if the network timeouts or fails to make the request.
|
|
*
|
|
* @param {Object} options
|
|
* @param {Request} request The request to match in the cache
|
|
* @param {Event} [options.event]
|
|
* @return {Promise<Object>}
|
|
*
|
|
* @private
|
|
*/
|
|
|
|
|
|
_respondFromCache({
|
|
event,
|
|
request
|
|
}) {
|
|
return cacheWrapper_mjs.cacheWrapper.match({
|
|
cacheName: this._cacheName,
|
|
request,
|
|
event,
|
|
matchOptions: this._matchOptions,
|
|
plugins: this._plugins
|
|
});
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
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.
|
|
*/
|
|
/**
|
|
* An implementation of a
|
|
* [network-only]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#network-only}
|
|
* request strategy.
|
|
*
|
|
* This class is useful if you want to take advantage of any
|
|
* [Workbox plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}.
|
|
*
|
|
* If the network request fails, this will throw a `WorkboxError` exception.
|
|
*
|
|
* @memberof workbox.strategies
|
|
*/
|
|
|
|
class NetworkOnly {
|
|
/**
|
|
* @param {Object} options
|
|
* @param {string} options.cacheName Cache name to store and retrieve
|
|
* requests. Defaults to cache names provided by
|
|
* [workbox-core]{@link workbox.core.cacheNames}.
|
|
* @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
|
|
* to use in conjunction with this caching strategy.
|
|
* @param {Object} options.fetchOptions Values passed along to the
|
|
* [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
|
|
* of all fetch() requests made by this strategy.
|
|
*/
|
|
constructor(options = {}) {
|
|
this._cacheName = cacheNames_mjs.cacheNames.getRuntimeName(options.cacheName);
|
|
this._plugins = options.plugins || [];
|
|
this._fetchOptions = options.fetchOptions || null;
|
|
}
|
|
/**
|
|
* This method will perform a request strategy and follows an API that
|
|
* will work with the
|
|
* [Workbox Router]{@link workbox.routing.Router}.
|
|
*
|
|
* @param {Object} options
|
|
* @param {Request} options.request The request to run this strategy for.
|
|
* @param {Event} [options.event] The event that triggered the request.
|
|
* @return {Promise<Response>}
|
|
*/
|
|
|
|
|
|
async handle({
|
|
event,
|
|
request
|
|
}) {
|
|
return this.makeRequest({
|
|
event,
|
|
request: request || event.request
|
|
});
|
|
}
|
|
/**
|
|
* This method can be used to perform a make a standalone request outside the
|
|
* context of the [Workbox Router]{@link workbox.routing.Router}.
|
|
*
|
|
* See "[Advanced Recipes](https://developers.google.com/web/tools/workbox/guides/advanced-recipes#make-requests)"
|
|
* for more usage information.
|
|
*
|
|
* @param {Object} options
|
|
* @param {Request|string} options.request Either a
|
|
* [`Request`]{@link https://developer.mozilla.org/en-US/docs/Web/API/Request}
|
|
* object, or a string URL, corresponding to the request to be made.
|
|
* @param {FetchEvent} [options.event] If provided, `event.waitUntil()` will
|
|
* be called automatically to extend the service worker's lifetime.
|
|
* @return {Promise<Response>}
|
|
*/
|
|
|
|
|
|
async makeRequest({
|
|
event,
|
|
request
|
|
}) {
|
|
if (typeof request === 'string') {
|
|
request = new Request(request);
|
|
}
|
|
|
|
{
|
|
assert_mjs.assert.isInstance(request, Request, {
|
|
moduleName: 'workbox-strategies',
|
|
className: 'NetworkOnly',
|
|
funcName: 'handle',
|
|
paramName: 'request'
|
|
});
|
|
}
|
|
|
|
let error;
|
|
let response;
|
|
|
|
try {
|
|
response = await fetchWrapper_mjs.fetchWrapper.fetch({
|
|
request,
|
|
event,
|
|
fetchOptions: this._fetchOptions,
|
|
plugins: this._plugins
|
|
});
|
|
} catch (err) {
|
|
error = err;
|
|
}
|
|
|
|
{
|
|
logger_mjs.logger.groupCollapsed(messages.strategyStart('NetworkOnly', request));
|
|
|
|
if (response) {
|
|
logger_mjs.logger.log(`Got response from network.`);
|
|
} else {
|
|
logger_mjs.logger.log(`Unable to get a response from the network.`);
|
|
}
|
|
|
|
messages.printFinalResponse(response);
|
|
logger_mjs.logger.groupEnd();
|
|
}
|
|
|
|
if (!response) {
|
|
throw new WorkboxError_mjs.WorkboxError('no-response', {
|
|
url: request.url,
|
|
error
|
|
});
|
|
}
|
|
|
|
return response;
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
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.
|
|
*/
|
|
/**
|
|
* An implementation of a
|
|
* [stale-while-revalidate]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#stale-while-revalidate}
|
|
* request strategy.
|
|
*
|
|
* Resources are requested from both the cache and the network in parallel.
|
|
* The strategy will respond with the cached version if available, otherwise
|
|
* wait for the network response. The cache is updated with the network response
|
|
* with each successful request.
|
|
*
|
|
* By default, this strategy will cache responses with a 200 status code as
|
|
* well as [opaque responses]{@link https://developers.google.com/web/tools/workbox/guides/handle-third-party-requests}.
|
|
* Opaque responses are are cross-origin requests where the response doesn't
|
|
* support [CORS]{@link https://enable-cors.org/}.
|
|
*
|
|
* If the network request fails, and there is no cache match, this will throw
|
|
* a `WorkboxError` exception.
|
|
*
|
|
* @memberof workbox.strategies
|
|
*/
|
|
|
|
class StaleWhileRevalidate {
|
|
/**
|
|
* @param {Object} options
|
|
* @param {string} options.cacheName Cache name to store and retrieve
|
|
* requests. Defaults to cache names provided by
|
|
* [workbox-core]{@link workbox.core.cacheNames}.
|
|
* @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
|
|
* to use in conjunction with this caching strategy.
|
|
* @param {Object} options.fetchOptions Values passed along to the
|
|
* [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
|
|
* of all fetch() requests made by this strategy.
|
|
* @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)
|
|
*/
|
|
constructor(options = {}) {
|
|
this._cacheName = cacheNames_mjs.cacheNames.getRuntimeName(options.cacheName);
|
|
this._plugins = options.plugins || [];
|
|
|
|
if (options.plugins) {
|
|
let isUsingCacheWillUpdate = options.plugins.some(plugin => !!plugin.cacheWillUpdate);
|
|
this._plugins = isUsingCacheWillUpdate ? options.plugins : [cacheOkAndOpaquePlugin, ...options.plugins];
|
|
} else {
|
|
// No plugins passed in, use the default plugin.
|
|
this._plugins = [cacheOkAndOpaquePlugin];
|
|
}
|
|
|
|
this._fetchOptions = options.fetchOptions || null;
|
|
this._matchOptions = options.matchOptions || null;
|
|
}
|
|
/**
|
|
* This method will perform a request strategy and follows an API that
|
|
* will work with the
|
|
* [Workbox Router]{@link workbox.routing.Router}.
|
|
*
|
|
* @param {Object} options
|
|
* @param {Request} options.request The request to run this strategy for.
|
|
* @param {Event} [options.event] The event that triggered the request.
|
|
* @return {Promise<Response>}
|
|
*/
|
|
|
|
|
|
async handle({
|
|
event,
|
|
request
|
|
}) {
|
|
return this.makeRequest({
|
|
event,
|
|
request: request || event.request
|
|
});
|
|
}
|
|
/**
|
|
* This method can be used to perform a make a standalone request outside the
|
|
* context of the [Workbox Router]{@link workbox.routing.Router}.
|
|
*
|
|
* See "[Advanced Recipes](https://developers.google.com/web/tools/workbox/guides/advanced-recipes#make-requests)"
|
|
* for more usage information.
|
|
*
|
|
* @param {Object} options
|
|
* @param {Request|string} options.request Either a
|
|
* [`Request`]{@link https://developer.mozilla.org/en-US/docs/Web/API/Request}
|
|
* object, or a string URL, corresponding to the request to be made.
|
|
* @param {FetchEvent} [options.event] If provided, `event.waitUntil()` will
|
|
* be called automatically to extend the service worker's lifetime.
|
|
* @return {Promise<Response>}
|
|
*/
|
|
|
|
|
|
async makeRequest({
|
|
event,
|
|
request
|
|
}) {
|
|
const logs = [];
|
|
|
|
if (typeof request === 'string') {
|
|
request = new Request(request);
|
|
}
|
|
|
|
{
|
|
assert_mjs.assert.isInstance(request, Request, {
|
|
moduleName: 'workbox-strategies',
|
|
className: 'StaleWhileRevalidate',
|
|
funcName: 'handle',
|
|
paramName: 'request'
|
|
});
|
|
}
|
|
|
|
const fetchAndCachePromise = this._getFromNetwork({
|
|
request,
|
|
event
|
|
});
|
|
|
|
let response = await cacheWrapper_mjs.cacheWrapper.match({
|
|
cacheName: this._cacheName,
|
|
request,
|
|
event,
|
|
matchOptions: this._matchOptions,
|
|
plugins: this._plugins
|
|
});
|
|
let error;
|
|
|
|
if (response) {
|
|
{
|
|
logs.push(`Found a cached response in the '${this._cacheName}'` + ` cache. Will update with the network response in the background.`);
|
|
}
|
|
|
|
if (event) {
|
|
try {
|
|
event.waitUntil(fetchAndCachePromise);
|
|
} catch (error) {
|
|
{
|
|
logger_mjs.logger.warn(`Unable to ensure service worker stays alive when ` + `updating cache for '${getFriendlyURL_mjs.getFriendlyURL(request.url)}'.`);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
{
|
|
logs.push(`No response found in the '${this._cacheName}' cache. ` + `Will wait for the network response.`);
|
|
}
|
|
|
|
try {
|
|
response = await fetchAndCachePromise;
|
|
} catch (err) {
|
|
error = err;
|
|
}
|
|
}
|
|
|
|
{
|
|
logger_mjs.logger.groupCollapsed(messages.strategyStart('StaleWhileRevalidate', request));
|
|
|
|
for (let log of logs) {
|
|
logger_mjs.logger.log(log);
|
|
}
|
|
|
|
messages.printFinalResponse(response);
|
|
logger_mjs.logger.groupEnd();
|
|
}
|
|
|
|
if (!response) {
|
|
throw new WorkboxError_mjs.WorkboxError('no-response', {
|
|
url: request.url,
|
|
error
|
|
});
|
|
}
|
|
|
|
return response;
|
|
}
|
|
/**
|
|
* @param {Object} options
|
|
* @param {Request} options.request
|
|
* @param {Event} [options.event]
|
|
* @return {Promise<Response>}
|
|
*
|
|
* @private
|
|
*/
|
|
|
|
|
|
async _getFromNetwork({
|
|
request,
|
|
event
|
|
}) {
|
|
const response = await fetchWrapper_mjs.fetchWrapper.fetch({
|
|
request,
|
|
event,
|
|
fetchOptions: this._fetchOptions,
|
|
plugins: this._plugins
|
|
});
|
|
const cachePutPromise = cacheWrapper_mjs.cacheWrapper.put({
|
|
cacheName: this._cacheName,
|
|
request,
|
|
response: response.clone(),
|
|
event,
|
|
plugins: this._plugins
|
|
});
|
|
|
|
if (event) {
|
|
try {
|
|
event.waitUntil(cachePutPromise);
|
|
} catch (error) {
|
|
{
|
|
logger_mjs.logger.warn(`Unable to ensure service worker stays alive when ` + `updating cache for '${getFriendlyURL_mjs.getFriendlyURL(request.url)}'.`);
|
|
}
|
|
}
|
|
}
|
|
|
|
return response;
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
Copyright 2018 Google LLC
|
|
|
|
Use of this source code is governed by an MIT-style
|
|
license that can be found in the LICENSE file or at
|
|
https://opensource.org/licenses/MIT.
|
|
*/
|
|
const mapping = {
|
|
cacheFirst: CacheFirst,
|
|
cacheOnly: CacheOnly,
|
|
networkFirst: NetworkFirst,
|
|
networkOnly: NetworkOnly,
|
|
staleWhileRevalidate: StaleWhileRevalidate
|
|
};
|
|
|
|
const deprecate = strategy => {
|
|
const StrategyCtr = mapping[strategy];
|
|
return options => {
|
|
{
|
|
const strategyCtrName = strategy[0].toUpperCase() + strategy.slice(1);
|
|
logger_mjs.logger.warn(`The 'workbox.strategies.${strategy}()' function has been ` + `deprecated and will be removed in a future version of Workbox.\n` + `Please use 'new workbox.strategies.${strategyCtrName}()' instead.`);
|
|
}
|
|
|
|
return new StrategyCtr(options);
|
|
};
|
|
};
|
|
/**
|
|
* @function workbox.strategies.cacheFirst
|
|
* @param {Object} options See the {@link workbox.strategies.CacheFirst}
|
|
* constructor for more info.
|
|
* @deprecated since v4.0.0
|
|
*/
|
|
|
|
|
|
const cacheFirst = deprecate('cacheFirst');
|
|
/**
|
|
* @function workbox.strategies.cacheOnly
|
|
* @param {Object} options See the {@link workbox.strategies.CacheOnly}
|
|
* constructor for more info.
|
|
* @deprecated since v4.0.0
|
|
*/
|
|
|
|
const cacheOnly = deprecate('cacheOnly');
|
|
/**
|
|
* @function workbox.strategies.networkFirst
|
|
* @param {Object} options See the {@link workbox.strategies.NetworkFirst}
|
|
* constructor for more info.
|
|
* @deprecated since v4.0.0
|
|
*/
|
|
|
|
const networkFirst = deprecate('networkFirst');
|
|
/**
|
|
* @function workbox.strategies.networkOnly
|
|
* @param {Object} options See the {@link workbox.strategies.NetworkOnly}
|
|
* constructor for more info.
|
|
* @deprecated since v4.0.0
|
|
*/
|
|
|
|
const networkOnly = deprecate('networkOnly');
|
|
/**
|
|
* @function workbox.strategies.staleWhileRevalidate
|
|
* @param {Object} options See the
|
|
* {@link workbox.strategies.StaleWhileRevalidate} constructor for more info.
|
|
* @deprecated since v4.0.0
|
|
*/
|
|
|
|
const staleWhileRevalidate = deprecate('staleWhileRevalidate');
|
|
|
|
exports.CacheFirst = CacheFirst;
|
|
exports.CacheOnly = CacheOnly;
|
|
exports.NetworkFirst = NetworkFirst;
|
|
exports.NetworkOnly = NetworkOnly;
|
|
exports.StaleWhileRevalidate = StaleWhileRevalidate;
|
|
exports.cacheFirst = cacheFirst;
|
|
exports.cacheOnly = cacheOnly;
|
|
exports.networkFirst = networkFirst;
|
|
exports.networkOnly = networkOnly;
|
|
exports.staleWhileRevalidate = staleWhileRevalidate;
|
|
|
|
return exports;
|
|
|
|
}({}, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private));
|
|
//# sourceMappingURL=workbox-strategies.dev.js.map
|