303 lines
12 KiB
JavaScript
303 lines
12 KiB
JavaScript
|
this.workbox = this.workbox || {};
|
||
|
|
this.workbox.broadcastUpdate = (function (exports, assert_js, timeout_js, resultingClientExists_js, logger_js, WorkboxError_js, dontWaitFor_js) {
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
try {
|
||
|
|
self['workbox:broadcast-update:6.5.4'] && _();
|
||
|
|
} catch (e) {}
|
||
|
|
|
||
|
|
/*
|
||
|
|
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.
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Given two `Response's`, compares several header values to see if they are
|
||
|
|
* the same or not.
|
||
|
|
*
|
||
|
|
* @param {Response} firstResponse
|
||
|
|
* @param {Response} secondResponse
|
||
|
|
* @param {Array<string>} headersToCheck
|
||
|
|
* @return {boolean}
|
||
|
|
*
|
||
|
|
* @memberof workbox-broadcast-update
|
||
|
|
*/
|
||
|
|
|
||
|
|
const responsesAreSame = (firstResponse, secondResponse, headersToCheck) => {
|
||
|
|
{
|
||
|
|
if (!(firstResponse instanceof Response && secondResponse instanceof Response)) {
|
||
|
|
throw new WorkboxError_js.WorkboxError('invalid-responses-are-same-args');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const atLeastOneHeaderAvailable = headersToCheck.some(header => {
|
||
|
|
return firstResponse.headers.has(header) && secondResponse.headers.has(header);
|
||
|
|
});
|
||
|
|
|
||
|
|
if (!atLeastOneHeaderAvailable) {
|
||
|
|
{
|
||
|
|
logger_js.logger.warn(`Unable to determine where the response has been updated ` + `because none of the headers that would be checked are present.`);
|
||
|
|
logger_js.logger.debug(`Attempting to compare the following: `, firstResponse, secondResponse, headersToCheck);
|
||
|
|
} // Just return true, indicating the that responses are the same, since we
|
||
|
|
// can't determine otherwise.
|
||
|
|
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
return headersToCheck.every(header => {
|
||
|
|
const headerStateComparison = firstResponse.headers.has(header) === secondResponse.headers.has(header);
|
||
|
|
const headerValueComparison = firstResponse.headers.get(header) === secondResponse.headers.get(header);
|
||
|
|
return headerStateComparison && headerValueComparison;
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
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 CACHE_UPDATED_MESSAGE_TYPE = 'CACHE_UPDATED';
|
||
|
|
const CACHE_UPDATED_MESSAGE_META = 'workbox-broadcast-update';
|
||
|
|
const NOTIFY_ALL_CLIENTS = true;
|
||
|
|
const DEFAULT_HEADERS_TO_CHECK = ['content-length', 'etag', 'last-modified'];
|
||
|
|
|
||
|
|
/*
|
||
|
|
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.
|
||
|
|
*/
|
||
|
|
// TODO(philipwalton): remove once this Safari bug fix has been released.
|
||
|
|
// https://bugs.webkit.org/show_bug.cgi?id=201169
|
||
|
|
|
||
|
|
const isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);
|
||
|
|
/**
|
||
|
|
* Generates the default payload used in update messages. By default the
|
||
|
|
* payload includes the `cacheName` and `updatedURL` fields.
|
||
|
|
*
|
||
|
|
* @return Object
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
|
||
|
|
function defaultPayloadGenerator(data) {
|
||
|
|
return {
|
||
|
|
cacheName: data.cacheName,
|
||
|
|
updatedURL: data.request.url
|
||
|
|
};
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Uses the `postMessage()` API to inform any open windows/tabs when a cached
|
||
|
|
* response has been updated.
|
||
|
|
*
|
||
|
|
* For efficiency's sake, the underlying response bodies are not compared;
|
||
|
|
* only specific response headers are checked.
|
||
|
|
*
|
||
|
|
* @memberof workbox-broadcast-update
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
class BroadcastCacheUpdate {
|
||
|
|
/**
|
||
|
|
* Construct a BroadcastCacheUpdate instance with a specific `channelName` to
|
||
|
|
* broadcast messages on
|
||
|
|
*
|
||
|
|
* @param {Object} [options]
|
||
|
|
* @param {Array<string>} [options.headersToCheck=['content-length', 'etag', 'last-modified']]
|
||
|
|
* A list of headers that will be used to determine whether the responses
|
||
|
|
* differ.
|
||
|
|
* @param {string} [options.generatePayload] A function whose return value
|
||
|
|
* will be used as the `payload` field in any cache update messages sent
|
||
|
|
* to the window clients.
|
||
|
|
* @param {boolean} [options.notifyAllClients=true] If true (the default) then
|
||
|
|
* all open clients will receive a message. If false, then only the client
|
||
|
|
* that make the original request will be notified of the update.
|
||
|
|
*/
|
||
|
|
constructor({
|
||
|
|
generatePayload,
|
||
|
|
headersToCheck,
|
||
|
|
notifyAllClients
|
||
|
|
} = {}) {
|
||
|
|
this._headersToCheck = headersToCheck || DEFAULT_HEADERS_TO_CHECK;
|
||
|
|
this._generatePayload = generatePayload || defaultPayloadGenerator;
|
||
|
|
this._notifyAllClients = notifyAllClients !== null && notifyAllClients !== void 0 ? notifyAllClients : NOTIFY_ALL_CLIENTS;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Compares two [Responses](https://developer.mozilla.org/en-US/docs/Web/API/Response)
|
||
|
|
* and sends a message (via `postMessage()`) to all window clients if the
|
||
|
|
* responses differ. Neither of the Responses can be
|
||
|
|
* [opaque](https://developer.chrome.com/docs/workbox/caching-resources-during-runtime/#opaque-responses).
|
||
|
|
*
|
||
|
|
* The message that's posted has the following format (where `payload` can
|
||
|
|
* be customized via the `generatePayload` option the instance is created
|
||
|
|
* with):
|
||
|
|
*
|
||
|
|
* ```
|
||
|
|
* {
|
||
|
|
* type: 'CACHE_UPDATED',
|
||
|
|
* meta: 'workbox-broadcast-update',
|
||
|
|
* payload: {
|
||
|
|
* cacheName: 'the-cache-name',
|
||
|
|
* updatedURL: 'https://example.com/'
|
||
|
|
* }
|
||
|
|
* }
|
||
|
|
* ```
|
||
|
|
*
|
||
|
|
* @param {Object} options
|
||
|
|
* @param {Response} [options.oldResponse] Cached response to compare.
|
||
|
|
* @param {Response} options.newResponse Possibly updated response to compare.
|
||
|
|
* @param {Request} options.request The request.
|
||
|
|
* @param {string} options.cacheName Name of the cache the responses belong
|
||
|
|
* to. This is included in the broadcast message.
|
||
|
|
* @param {Event} options.event event The event that triggered
|
||
|
|
* this possible cache update.
|
||
|
|
* @return {Promise} Resolves once the update is sent.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
async notifyIfUpdated(options) {
|
||
|
|
{
|
||
|
|
assert_js.assert.isType(options.cacheName, 'string', {
|
||
|
|
moduleName: 'workbox-broadcast-update',
|
||
|
|
className: 'BroadcastCacheUpdate',
|
||
|
|
funcName: 'notifyIfUpdated',
|
||
|
|
paramName: 'cacheName'
|
||
|
|
});
|
||
|
|
assert_js.assert.isInstance(options.newResponse, Response, {
|
||
|
|
moduleName: 'workbox-broadcast-update',
|
||
|
|
className: 'BroadcastCacheUpdate',
|
||
|
|
funcName: 'notifyIfUpdated',
|
||
|
|
paramName: 'newResponse'
|
||
|
|
});
|
||
|
|
assert_js.assert.isInstance(options.request, Request, {
|
||
|
|
moduleName: 'workbox-broadcast-update',
|
||
|
|
className: 'BroadcastCacheUpdate',
|
||
|
|
funcName: 'notifyIfUpdated',
|
||
|
|
paramName: 'request'
|
||
|
|
});
|
||
|
|
} // Without two responses there is nothing to compare.
|
||
|
|
|
||
|
|
|
||
|
|
if (!options.oldResponse) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!responsesAreSame(options.oldResponse, options.newResponse, this._headersToCheck)) {
|
||
|
|
{
|
||
|
|
logger_js.logger.log(`Newer response found (and cached) for:`, options.request.url);
|
||
|
|
}
|
||
|
|
|
||
|
|
const messageData = {
|
||
|
|
type: CACHE_UPDATED_MESSAGE_TYPE,
|
||
|
|
meta: CACHE_UPDATED_MESSAGE_META,
|
||
|
|
payload: this._generatePayload(options)
|
||
|
|
}; // For navigation requests, wait until the new window client exists
|
||
|
|
// before sending the message
|
||
|
|
|
||
|
|
if (options.request.mode === 'navigate') {
|
||
|
|
let resultingClientId;
|
||
|
|
|
||
|
|
if (options.event instanceof FetchEvent) {
|
||
|
|
resultingClientId = options.event.resultingClientId;
|
||
|
|
}
|
||
|
|
|
||
|
|
const resultingWin = await resultingClientExists_js.resultingClientExists(resultingClientId); // Safari does not currently implement postMessage buffering and
|
||
|
|
// there's no good way to feature detect that, so to increase the
|
||
|
|
// chances of the message being delivered in Safari, we add a timeout.
|
||
|
|
// We also do this if `resultingClientExists()` didn't return a client,
|
||
|
|
// which means it timed out, so it's worth waiting a bit longer.
|
||
|
|
|
||
|
|
if (!resultingWin || isSafari) {
|
||
|
|
// 3500 is chosen because (according to CrUX data) 80% of mobile
|
||
|
|
// websites hit the DOMContentLoaded event in less than 3.5 seconds.
|
||
|
|
// And presumably sites implementing service worker are on the
|
||
|
|
// higher end of the performance spectrum.
|
||
|
|
await timeout_js.timeout(3500);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (this._notifyAllClients) {
|
||
|
|
const windows = await self.clients.matchAll({
|
||
|
|
type: 'window'
|
||
|
|
});
|
||
|
|
|
||
|
|
for (const win of windows) {
|
||
|
|
win.postMessage(messageData);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
// See https://github.com/GoogleChrome/workbox/issues/2895
|
||
|
|
if (options.event instanceof FetchEvent) {
|
||
|
|
const client = await self.clients.get(options.event.clientId);
|
||
|
|
client === null || client === void 0 ? void 0 : client.postMessage(messageData);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
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 plugin will automatically broadcast a message whenever a cached response
|
||
|
|
* is updated.
|
||
|
|
*
|
||
|
|
* @memberof workbox-broadcast-update
|
||
|
|
*/
|
||
|
|
|
||
|
|
class BroadcastUpdatePlugin {
|
||
|
|
/**
|
||
|
|
* Construct a {@link workbox-broadcast-update.BroadcastUpdate} instance with
|
||
|
|
* the passed options and calls its `notifyIfUpdated` method whenever the
|
||
|
|
* plugin's `cacheDidUpdate` callback is invoked.
|
||
|
|
*
|
||
|
|
* @param {Object} [options]
|
||
|
|
* @param {Array<string>} [options.headersToCheck=['content-length', 'etag', 'last-modified']]
|
||
|
|
* A list of headers that will be used to determine whether the responses
|
||
|
|
* differ.
|
||
|
|
* @param {string} [options.generatePayload] A function whose return value
|
||
|
|
* will be used as the `payload` field in any cache update messages sent
|
||
|
|
* to the window clients.
|
||
|
|
*/
|
||
|
|
constructor(options) {
|
||
|
|
/**
|
||
|
|
* A "lifecycle" callback that will be triggered automatically by the
|
||
|
|
* `workbox-sw` and `workbox-runtime-caching` handlers when an entry is
|
||
|
|
* added to a cache.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {Object} options The input object to this function.
|
||
|
|
* @param {string} options.cacheName Name of the cache being updated.
|
||
|
|
* @param {Response} [options.oldResponse] The previous cached value, if any.
|
||
|
|
* @param {Response} options.newResponse The new value in the cache.
|
||
|
|
* @param {Request} options.request The request that triggered the update.
|
||
|
|
* @param {Request} options.event The event that triggered the update.
|
||
|
|
*/
|
||
|
|
this.cacheDidUpdate = async options => {
|
||
|
|
dontWaitFor_js.dontWaitFor(this._broadcastUpdate.notifyIfUpdated(options));
|
||
|
|
};
|
||
|
|
|
||
|
|
this._broadcastUpdate = new BroadcastCacheUpdate(options);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
exports.BroadcastCacheUpdate = BroadcastCacheUpdate;
|
||
|
|
exports.BroadcastUpdatePlugin = BroadcastUpdatePlugin;
|
||
|
|
exports.responsesAreSame = responsesAreSame;
|
||
|
|
|
||
|
|
return exports;
|
||
|
|
|
||
|
|
}({}, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private));
|
||
|
|
//# sourceMappingURL=workbox-broadcast-update.dev.js.map
|