diff options
Diffstat (limited to 'node_modules/workbox-broadcast-cache-update')
12 files changed, 684 insertions, 0 deletions
diff --git a/node_modules/workbox-broadcast-cache-update/BroadcastCacheUpdate.mjs b/node_modules/workbox-broadcast-cache-update/BroadcastCacheUpdate.mjs new file mode 100644 index 00000000..650af241 --- /dev/null +++ b/node_modules/workbox-broadcast-cache-update/BroadcastCacheUpdate.mjs @@ -0,0 +1,99 @@ +/* + Copyright 2016 Google Inc. All Rights Reserved. + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +import {WorkboxError} from 'workbox-core/_private/WorkboxError.mjs'; +import {responsesAreSame} from './utils/responsesAreSame.mjs'; +import {broadcastUpdate} from './broadcastUpdate.mjs'; +import './_version.mjs'; + +/** + * Uses the [Broadcast Channel API]{@link https://developers.google.com/web/updates/2016/09/broadcastchannel} + * to notify interested parties 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.broadcastUpdate + */ +class BroadcastCacheUpdate { + /** + * Construct a BroadcastCacheUpdate instance with a specific `channelName` to + * broadcast messages on + * + * @param {string} channelName The name that will be used when creating + * the `BroadcastChannel`. + * @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.source='workbox-broadcast-cache-update'] An + * attribution value that indicates where the update originated. + */ + constructor(channelName, {headersToCheck, source} = {}) { + if (process.env.NODE_ENV !== 'production') { + if (typeof channelName !== 'string' || channelName.length === 0) { + throw new WorkboxError('channel-name-required'); + } + } + + this._channelName = channelName; + this._headersToCheck = headersToCheck || [ + 'content-length', + 'etag', + 'last-modified', + ]; + this._source = source || 'workbox-broadcast-cache-update'; + + // TODO assert typeof headersToCheck instanceof Array + } + + /** + * @return {BroadcastChannel|undefined} The BroadcastChannel instance used for + * broadcasting updates, or undefined if the browser doesn't support the + * Broadcast Channel API. + * + * @private + */ + _getChannel() { + if (('BroadcastChannel' in self) && !this._channel) { + this._channel = new BroadcastChannel(this._channelName); + } + return this._channel; + } + + /** + * Compare two [Responses](https://developer.mozilla.org/en-US/docs/Web/API/Response) + * and send a message via the + * {@link https://developers.google.com/web/updates/2016/09/broadcastchannel|Broadcast Channel API} + * if they differ. + * + * Neither of the Responses can be {@link http://stackoverflow.com/questions/39109789|opaque}. + * + * @param {Response} firstResponse First responses to compare. + * @param {Response} secondResponse Second responses to compare. + * @param {string} url The URL of the updated request. + * @param {string} cacheName Name of the cache the responses belong to. + * This is included in the message posted on the broadcast channel. + */ + notifyIfUpdated(firstResponse, secondResponse, url, cacheName) { + if (!responsesAreSame( + firstResponse, secondResponse, this._headersToCheck)) { + broadcastUpdate(this._getChannel(), cacheName, url, this._source); + } + } +} + +export {BroadcastCacheUpdate}; diff --git a/node_modules/workbox-broadcast-cache-update/LICENSE b/node_modules/workbox-broadcast-cache-update/LICENSE new file mode 100644 index 00000000..136b9039 --- /dev/null +++ b/node_modules/workbox-broadcast-cache-update/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright 2017 Google, Inc. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/node_modules/workbox-broadcast-cache-update/Plugin.mjs b/node_modules/workbox-broadcast-cache-update/Plugin.mjs new file mode 100644 index 00000000..868e2e97 --- /dev/null +++ b/node_modules/workbox-broadcast-cache-update/Plugin.mjs @@ -0,0 +1,87 @@ +/* + Copyright 2016 Google Inc. All Rights Reserved. + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +import {assert} from 'workbox-core/_private/assert.mjs'; +import {BroadcastCacheUpdate} from './BroadcastCacheUpdate.mjs'; +import './_version.mjs'; + +/** + * This plugin will automatically broadcast a message whenever a cached response + * is updated. + * + * @memberof workbox.broadcastUpdate + */ +class Plugin { + /** + * Construct a new instance with a specific `channelName` to + * broadcast messages on + * + * @param {string} channelName The name that will be used when creating + * the `BroadcastChannel`. + * @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.source='workbox-broadcast-cache-update'] An + * attribution value that indicates where the update originated. + */ + constructor(channelName, options) { + this._broadcastUpdate = new BroadcastCacheUpdate(channelName, 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. + */ + cacheDidUpdate({cacheName, oldResponse, newResponse, request}) { + if (process.env.NODE_ENV !== 'production') { + assert.isType(cacheName, 'string', { + moduleName: 'workbox-broadcast-cache-update', + className: 'Plugin', + funcName: 'cacheDidUpdate', + paramName: 'cacheName', + }); + assert.isInstance(newResponse, Response, { + moduleName: 'workbox-broadcast-cache-update', + className: 'Plugin', + funcName: 'cacheDidUpdate', + paramName: 'newResponse', + }); + assert.isInstance(request, Request, { + moduleName: 'workbox-broadcast-cache-update', + className: 'Plugin', + funcName: 'cacheDidUpdate', + paramName: 'request', + }); + } + + if (!oldResponse) { + // Without a two responses there is nothing to compare. + return; + } + + this._broadcastUpdate + .notifyIfUpdated(oldResponse, newResponse, request.url, cacheName); + } +} + +export {Plugin}; diff --git a/node_modules/workbox-broadcast-cache-update/README.md b/node_modules/workbox-broadcast-cache-update/README.md new file mode 100644 index 00000000..be4f04a0 --- /dev/null +++ b/node_modules/workbox-broadcast-cache-update/README.md @@ -0,0 +1 @@ +This module's documentation can be found at https://developers.google.com/web/tools/workbox/modules/workbox-broadcast-cache-update diff --git a/node_modules/workbox-broadcast-cache-update/_public.mjs b/node_modules/workbox-broadcast-cache-update/_public.mjs new file mode 100644 index 00000000..2a486423 --- /dev/null +++ b/node_modules/workbox-broadcast-cache-update/_public.mjs @@ -0,0 +1,28 @@ +/* + Copyright 2017 Google Inc. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + https://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +import {BroadcastCacheUpdate} from './BroadcastCacheUpdate.mjs'; +import {Plugin} from './Plugin.mjs'; +import {broadcastUpdate} from './broadcastUpdate.mjs'; +import messageTypes from './messageTypes.mjs'; +import './_version.mjs'; + +export { + BroadcastCacheUpdate, + Plugin, + broadcastUpdate, + messageTypes, +}; diff --git a/node_modules/workbox-broadcast-cache-update/_version.mjs b/node_modules/workbox-broadcast-cache-update/_version.mjs new file mode 100644 index 00000000..d383adb5 --- /dev/null +++ b/node_modules/workbox-broadcast-cache-update/_version.mjs @@ -0,0 +1 @@ +try{self.workbox.v['workbox:broadcast-cache-update:3.6.3']=1;}catch(e){} // eslint-disable-line
\ No newline at end of file diff --git a/node_modules/workbox-broadcast-cache-update/broadcastUpdate.mjs b/node_modules/workbox-broadcast-cache-update/broadcastUpdate.mjs new file mode 100644 index 00000000..85a41f9b --- /dev/null +++ b/node_modules/workbox-broadcast-cache-update/broadcastUpdate.mjs @@ -0,0 +1,107 @@ +/* + Copyright 2016 Google Inc. All Rights Reserved. + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +import {assert} from 'workbox-core/_private/assert.mjs'; +import {logger} from 'workbox-core/_private/logger.mjs'; +import messageTypes from './messageTypes.mjs'; +import './_version.mjs'; + +/** + * You would not normally call this method directly; it's called automatically + * by an instance of the {@link BroadcastCacheUpdate} class. It's exposed here + * for the benefit of developers who would rather not use the full + * `BroadcastCacheUpdate` implementation. + * + * Calling this will dispatch a message on the provided + * {@link https://developers.google.com/web/updates/2016/09/broadcastchannel|Broadcast Channel} + * to notify interested subscribers about a change to a cached resource. + * + * The message that's posted has a formation inspired by the + * [Flux standard action](https://github.com/acdlite/flux-standard-action#introduction) + * format like so: + * + * ``` + * { + * type: 'CACHE_UPDATED', + * meta: 'workbox-broadcast-cache-update', + * payload: { + * cacheName: 'the-cache-name', + * updatedUrl: 'https://example.com/' + * } + * } + * ``` + * + * (Usage of [Flux](https://facebook.github.io/flux/) itself is not at + * all required.) + * + * @param {BroadcastChannel} channel The `BroadcastChannel` to use. + * @param {string} cacheName The name of the cache in which the updated + * `Response` was stored. + * @param {string} url The URL associated with the updated `Response`. + * @param {string} source A string identifying this library as the source + * of the update message. + * + * @memberof workbox.broadcastUpdate + */ +const broadcastUpdate = (channel, cacheName, url, source) => { + // There are browsers which support service workers but don't support the + // Broadcast Channel API. + // See https://github.com/GoogleChrome/workbox/issues/1304 + if (!(('BroadcastChannel' in self) && channel)) { + if (process.env.NODE_ENV !== 'production') { + logger.debug(`${url} was updated, but the Broadcast Channel API is not ` + + `available in the current browser.`); + } + return; + } + + if (process.env.NODE_ENV !== 'production') { + assert.isInstance(channel, BroadcastChannel, { + moduleName: 'workbox-broadcast-cache-update', + className: '~', + funcName: 'broadcastUpdate', + paramName: 'channel', + }); + assert.isType(cacheName, 'string', { + moduleName: 'workbox-broadcast-cache-update', + className: '~', + funcName: 'broadcastUpdate', + paramName: 'cacheName', + }); + assert.isType(url, 'string', { + moduleName: 'workbox-broadcast-cache-update', + className: '~', + funcName: 'broadcastUpdate', + paramName: 'url', + }); + assert.isType(source, 'string', { + moduleName: 'workbox-broadcast-cache-update', + className: '~', + funcName: 'broadcastUpdate', + paramName: 'source', + }); + } + + channel.postMessage({ + type: messageTypes.CACHE_UPDATED, + meta: source, + payload: { + cacheName: cacheName, + updatedUrl: url, + }, + }); +}; + +export {broadcastUpdate}; diff --git a/node_modules/workbox-broadcast-cache-update/browser.mjs b/node_modules/workbox-broadcast-cache-update/browser.mjs new file mode 100644 index 00000000..e3caf3d8 --- /dev/null +++ b/node_modules/workbox-broadcast-cache-update/browser.mjs @@ -0,0 +1,19 @@ +/* + Copyright 2017 Google Inc. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + https://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +import './_version.mjs'; + +export * from './_public.mjs'; diff --git a/node_modules/workbox-broadcast-cache-update/index.mjs b/node_modules/workbox-broadcast-cache-update/index.mjs new file mode 100644 index 00000000..eff60b58 --- /dev/null +++ b/node_modules/workbox-broadcast-cache-update/index.mjs @@ -0,0 +1,23 @@ +/* + Copyright 2017 Google Inc. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + https://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +/** + * @namespace workbox.broadcastUpdate + */ + +import './_version.mjs'; + +export * from './_public.mjs'; diff --git a/node_modules/workbox-broadcast-cache-update/messageTypes.mjs b/node_modules/workbox-broadcast-cache-update/messageTypes.mjs new file mode 100644 index 00000000..115f52cf --- /dev/null +++ b/node_modules/workbox-broadcast-cache-update/messageTypes.mjs @@ -0,0 +1,20 @@ +/* + Copyright 2016 Google Inc. All Rights Reserved. + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +import './_version.mjs'; + +export default { + CACHE_UPDATED: 'CACHE_UPDATED', +}; diff --git a/node_modules/workbox-broadcast-cache-update/package.json b/node_modules/workbox-broadcast-cache-update/package.json new file mode 100644 index 00000000..b7c1c1d0 --- /dev/null +++ b/node_modules/workbox-broadcast-cache-update/package.json @@ -0,0 +1,30 @@ +{ + "name": "workbox-broadcast-cache-update", + "version": "3.6.3", + "license": "Apache-2.0", + "author": "Google's Web DevRel Team", + "description": "A service worker helper library that uses the Broadcast Channel API to announce when a cached response has updated", + "repository": "googlechrome/workbox", + "bugs": "https://github.com/googlechrome/workbox/issues", + "homepage": "https://github.com/GoogleChrome/workbox", + "keywords": [ + "workbox", + "workboxjs", + "service worker", + "sw" + ], + "scripts": { + "build": "gulp build-packages --package workbox-broadcast-cache-update", + "version": "npm run build", + "prepare": "npm run build" + }, + "workbox": { + "browserNamespace": "workbox.broadcastUpdate", + "packageType": "browser" + }, + "main": "build/workbox-broadcast-cache-update.prod.js", + "module": "index.mjs", + "dependencies": { + "workbox-core": "^3.6.3" + } +} diff --git a/node_modules/workbox-broadcast-cache-update/utils/responsesAreSame.mjs b/node_modules/workbox-broadcast-cache-update/utils/responsesAreSame.mjs new file mode 100644 index 00000000..538598d8 --- /dev/null +++ b/node_modules/workbox-broadcast-cache-update/utils/responsesAreSame.mjs @@ -0,0 +1,68 @@ +/* + Copyright 2016 Google Inc. All Rights Reserved. + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +import {WorkboxError} from 'workbox-core/_private/WorkboxError.mjs'; +import {logger} from 'workbox-core/_private/logger.mjs'; +import '../_version.mjs'; + +/** + * 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.broadcastUpdate + * @private + */ +const responsesAreSame = (firstResponse, secondResponse, headersToCheck) => { + if (process.env.NODE_ENV !== 'production') { + if (!(firstResponse instanceof Response && + secondResponse instanceof Response)) { + throw new WorkboxError('invalid-responses-are-same-args'); + } + } + + const atLeastOneHeaderAvailable = headersToCheck.some((header) => { + return firstResponse.headers.has(header) && + secondResponse.headers.has(header); + }); + + if (!atLeastOneHeaderAvailable) { + if (process.env.NODE_ENV !== 'production') { + logger.warn(`Unable to determine where the response has been updated ` + + `because none of the headers that would be checked are present.`); + 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; + }); +}; + +export {responsesAreSame}; |