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Pre-fetching of the default editor CDN resources #1192
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * Copyright (c) 2016-2018 Red Hat, Inc. | ||
|
There was a problem hiding this comment. seems it's not supported by the license checker for now |
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| * This program and the accompanying materials are made | ||
| * available under the terms of the Eclipse Public License 2.0 | ||
| * which is available at https://www.eclipse.org/legal/epl-2.0/ | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| * | ||
| * Contributors: | ||
| * Red Hat, Inc. - initial API and implementation | ||
| */ | ||
| 'use strict'; | ||
| import {CheBranding} from '../branding/che-branding.factory'; | ||
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| const IDE_FETCHER_CALLBACK_ID = 'cheIdeFetcherCallback'; | ||
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| /** | ||
| * Provides a way to download IDE .js and then cache it before trying to load the IDE | ||
| * @author Florent Benoit | ||
| * @author Oleksii Orel | ||
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| * @author David Festal | ||
| */ | ||
| export class CheIdeFetcher { | ||
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| static $inject = ['$log', '$http', '$window', 'cheBranding']; | ||
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| private $log: ng.ILogService; | ||
| private $http: ng.IHttpService; | ||
| private $window: ng.IWindowService; | ||
| private cheBranding: CheBranding; | ||
| private userAgent: string; | ||
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| /** | ||
| * Default constructor that is using resource injection | ||
| */ | ||
| constructor($log: ng.ILogService, $http: ng.IHttpService, $window: ng.IWindowService, cheBranding: CheBranding) { | ||
| this.$log = $log; | ||
| this.$http = $http; | ||
| this.$window = $window; | ||
| this.cheBranding = cheBranding; | ||
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| this.userAgent = this.getUserAgent(); | ||
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| const callback = () => { | ||
| this.findMappingFile(); | ||
| this.cheBranding.unregisterCallback(IDE_FETCHER_CALLBACK_ID); | ||
| }; | ||
| this.cheBranding.registerCallback(IDE_FETCHER_CALLBACK_ID, callback.bind(this)); | ||
| } | ||
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| /** | ||
| * Gets user agent. | ||
| * @returns {string} | ||
| */ | ||
| getUserAgent(): string { | ||
| const userAgent = this.$window.navigator.userAgent.toLowerCase(); | ||
| const docMode = (<any>this.$window.document).documentMode; | ||
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| if (userAgent.indexOf('webkit') !== -1) { | ||
| return 'safari'; | ||
| } else if (userAgent.indexOf('msie') !== -1) { | ||
| if (docMode >= 10 && docMode < 11) { | ||
| return 'ie10'; | ||
| } else if (docMode >= 9 && docMode < 11) { | ||
| return 'ie9'; | ||
| } else if (docMode >= 8 && docMode < 11) { | ||
| return 'ie8'; | ||
| } | ||
| } else if (userAgent.indexOf('gecko') !== -1) { | ||
| return 'gecko1_8'; | ||
| } | ||
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| return 'unknown'; | ||
| } | ||
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| /** | ||
| * Finds mapping file. | ||
| */ | ||
| findMappingFile(): void { | ||
| // get the content of the compilation mapping file | ||
| const randVal = Math.floor((Math.random() * 1000000) + 1); | ||
| const resourcesPath = this.cheBranding.getIdeResourcesPath(); | ||
| if (!resourcesPath) { | ||
| this.$log.log('Unable to get IDE resources path'); | ||
| return; | ||
| } | ||
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| const fileMappingUrl = `${resourcesPath}compilation-mappings.txt?uid=${randVal}`; | ||
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| this.$http.get(fileMappingUrl).then((response: {data: any}) => { | ||
| if (!response || !response.data) { | ||
| return; | ||
| } | ||
| let urlToLoad = this.getIdeUrlMappingFile(response.data); | ||
| // load the url | ||
| if (angular.isDefined(urlToLoad)) { | ||
| this.$log.log('Preloading IDE javascript', urlToLoad); | ||
| this.$http.get(urlToLoad, { cache: true}); | ||
| } else { | ||
| this.$log.error('Unable to find the IDE javascript file to cache'); | ||
| } | ||
| }, (error: any) => { | ||
| this.$log.log('unable to find compilation mapping file', error); | ||
| }); | ||
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| this.$http.get('/api/cdn-support/paths', {cache: false}).then((response: {data: any}) => { | ||
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| if (!response || !response.data) { | ||
| return; | ||
| } | ||
| const data = response.data; | ||
| data.forEach((entry) => { | ||
| let urlToLoad = entry.cdn; | ||
| // load the url | ||
| if (angular.isDefined(urlToLoad)) { | ||
| this.$log.log('Preloading Theia resource', urlToLoad); | ||
| const link = document.createElement("link"); | ||
| link.rel='prefetch'; | ||
| link.href=urlToLoad; | ||
| document.head.appendChild(link); | ||
| } else { | ||
| this.$log.error('Unable to find the Theia resource file to cache'); | ||
| } | ||
| }); | ||
| }, (error: any) => { | ||
| this.$log.log('Unable to find Theia CDN resources to cache', error); | ||
| }); | ||
| } | ||
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| /** | ||
| * Gets URL of mapping file. | ||
| * @param data {string} | ||
| * @returns {string} | ||
| */ | ||
| getIdeUrlMappingFile(data: string): string { | ||
| let mappingFileUrl: string; | ||
| let javascriptFileName: string; | ||
| const mappings = data.split(new RegExp('^\\n', 'gm')); | ||
| const isPasses = mappings.some((mapping: string) => { | ||
| const subMappings = mapping.split('\n'); | ||
| const userAgent = subMappings.find((subMapping: string) => { | ||
| return subMapping.startsWith('user.agent '); | ||
| }).split(' ')[1]; | ||
| javascriptFileName = subMappings.find((subMapping: string) => { | ||
| return subMapping.endsWith('.cache.js'); | ||
| }); | ||
| return javascriptFileName && userAgent && this.userAgent === userAgent; | ||
| }); | ||
| if (isPasses && javascriptFileName) { | ||
| mappingFileUrl = this.cheBranding.getIdeResourcesPath() + javascriptFileName; | ||
| } | ||
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| return mappingFileUrl; | ||
| } | ||
|
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| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| <?xml version="1.0" encoding="UTF-8"?> | ||
| <!-- | ||
|
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||
| Copyright (c) 2016-2018 Red Hat, Inc. | ||
|
There was a problem hiding this comment. I fear it's not supported by the license checker for now |
||
| This program and the accompanying materials are made | ||
| available under the terms of the Eclipse Public License 2.0 | ||
| which is available at https://www.eclipse.org/legal/epl-2.0/ | ||
|
|
||
| SPDX-License-Identifier: EPL-2.0 | ||
|
|
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| Contributors: | ||
| Red Hat, Inc. - initial API and implementation | ||
|
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||
| --> | ||
| <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> | ||
| <modelVersion>4.0.0</modelVersion> | ||
| <parent> | ||
| <artifactId>fabric8-ide-plugins-parent</artifactId> | ||
| <groupId>com.redhat.che</groupId> | ||
| <version>1.0.0-SNAPSHOT</version> | ||
| <relativePath>../pom.xml</relativePath> | ||
| </parent> | ||
| <artifactId>fabric8-cdn-support</artifactId> | ||
| <name>Fabric8 IDE :: Plugins :: CDN Support</name> | ||
| <dependencies> | ||
| <dependency> | ||
| <groupId>com.fasterxml.jackson.core</groupId> | ||
| <artifactId>jackson-core</artifactId> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>com.fasterxml.jackson.core</groupId> | ||
| <artifactId>jackson-databind</artifactId> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>com.fasterxml.jackson.dataformat</groupId> | ||
| <artifactId>jackson-dataformat-yaml</artifactId> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>com.google.guava</groupId> | ||
| <artifactId>guava</artifactId> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>com.google.inject</groupId> | ||
| <artifactId>guice</artifactId> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>javax.inject</groupId> | ||
| <artifactId>javax.inject</artifactId> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>javax.ws.rs</groupId> | ||
| <artifactId>javax.ws.rs-api</artifactId> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.eclipse.che.core</groupId> | ||
| <artifactId>che-core-api-core</artifactId> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.eclipse.che.core</groupId> | ||
| <artifactId>che-core-api-workspace</artifactId> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.eclipse.che.core</groupId> | ||
| <artifactId>che-core-api-workspace-shared</artifactId> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.eclipse.che.core</groupId> | ||
| <artifactId>che-core-commons-annotations</artifactId> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.eclipse.che.core</groupId> | ||
| <artifactId>che-core-commons-inject</artifactId> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.slf4j</groupId> | ||
| <artifactId>slf4j-api</artifactId> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>javax.servlet</groupId> | ||
| <artifactId>javax.servlet-api</artifactId> | ||
| <scope>provided</scope> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>ch.qos.logback</groupId> | ||
| <artifactId>logback-classic</artifactId> | ||
| <scope>test</scope> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.eclipse.che.core</groupId> | ||
| <artifactId>che-core-db</artifactId> | ||
| <scope>test</scope> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.hamcrest</groupId> | ||
| <artifactId>hamcrest-core</artifactId> | ||
| <scope>test</scope> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.mockito</groupId> | ||
| <artifactId>mockito-core</artifactId> | ||
| <scope>test</scope> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.mockito</groupId> | ||
| <artifactId>mockito-testng</artifactId> | ||
| <scope>test</scope> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.testng</groupId> | ||
| <artifactId>testng</artifactId> | ||
| <scope>test</scope> | ||
| </dependency> | ||
| </dependencies> | ||
| </project> | ||
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Could we include an example value here? I don't know offhand what the full identifier would look like.
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example added