client/src/app/app.component.ts

   1 import { Hotkey, HotkeysService } from 'angular2-hotkeys'
   2 import { concat } from 'rxjs'
   3 import { filter, first, map, pairwise } from 'rxjs/operators'
   4 import { DOCUMENT, PlatformLocation, ViewportScroller } from '@angular/common'
   5 import { AfterViewInit, Component, Inject, LOCALE_ID, OnInit, ViewChild } from '@angular/core'
   6 import { DomSanitizer, SafeHtml } from '@angular/platform-browser'
   7 import { Event, GuardsCheckStart, NavigationEnd, Router, Scroll } from '@angular/router'
   8 import { AuthService, MarkdownService, RedirectService, ScreenService, ServerService, ThemeService, User } from '@app/core'
   9 import { HooksService } from '@app/core/plugins/hooks.service'
  10 import { PluginService } from '@app/core/plugins/plugin.service'
  11 import { CustomModalComponent } from '@app/modal/custom-modal.component'
  12 import { InstanceConfigWarningModalComponent } from '@app/modal/instance-config-warning-modal.component'
  13 import { WelcomeModalComponent } from '@app/modal/welcome-modal.component'
  14 import { NgbConfig, NgbModal } from '@ng-bootstrap/ng-bootstrap'
  15 import { peertubeLocalStorage } from '@root-helpers/peertube-web-storage'
  16 import { getShortLocale, is18nPath } from '@shared/core-utils/i18n'
  17 import { BroadcastMessageLevel, ServerConfig, UserRole } from '@shared/models'
  18 import { MenuService } from './core/menu/menu.service'
  19 import { POP_STATE_MODAL_DISMISS } from './helpers'
  20 import { InstanceService } from './shared/shared-instance'
  21
  22 @Component({
  23   selector: 'my-app',
  24   templateUrl: './app.component.html',
  25   styleUrls: [ './app.component.scss' ]
  26 })
  27 export class AppComponent implements OnInit, AfterViewInit {
  28   private static BROADCAST_MESSAGE_KEY = 'app-broadcast-message-dismissed'
  29
  30   @ViewChild('welcomeModal') welcomeModal: WelcomeModalComponent
  31   @ViewChild('instanceConfigWarningModal') instanceConfigWarningModal: InstanceConfigWarningModalComponent
  32   @ViewChild('customModal') customModal: CustomModalComponent
  33
  34   customCSS: SafeHtml
  35   broadcastMessage: { message: string, dismissable: boolean, class: string } | null = null
  36
  37   private serverConfig: ServerConfig
  38
  39   constructor (
  40     @Inject(DOCUMENT) private document: Document,
  41     @Inject(LOCALE_ID) private localeId: string,
  42     private viewportScroller: ViewportScroller,
  43     private router: Router,
  44     private authService: AuthService,
  45     private serverService: ServerService,
  46     private pluginService: PluginService,
  47     private instanceService: InstanceService,
  48     private domSanitizer: DomSanitizer,
  49     private redirectService: RedirectService,
  50     private screenService: ScreenService,
  51     private hotkeysService: HotkeysService,
  52     private themeService: ThemeService,
  53     private hooks: HooksService,
  54     private location: PlatformLocation,
  55     private modalService: NgbModal,
  56     private markdownService: MarkdownService,
  57     private ngbConfig: NgbConfig,
  58     public menu: MenuService
  59   ) {
  60     this.ngbConfig.animation = false
  61   }
  62
  63   get instanceName () {
  64     return this.serverConfig.instance.name
  65   }
  66
  67   get defaultRoute () {
  68     return RedirectService.DEFAULT_ROUTE
  69   }
  70
  71   ngOnInit () {
  72     document.getElementById('incompatible-browser').className += ' browser-ok'
  73
  74     this.serverConfig = this.serverService.getTmpConfig()
  75     this.serverService.getConfig()
  76         .subscribe(config => this.serverConfig = config)
  77
  78     this.loadPlugins()
  79     this.themeService.initialize()
  80
  81     this.authService.loadClientCredentials()
  82
  83     if (this.isUserLoggedIn()) {
  84       // The service will automatically redirect to the login page if the token is not valid anymore
  85       this.authService.refreshUserInformation()
  86     }
  87
  88     this.initRouteEvents()
  89     this.injectJS()
  90     this.injectCSS()
  91     this.injectBroadcastMessage()
  92
  93     this.initHotkeys()
  94
  95     this.location.onPopState(() => this.modalService.dismissAll(POP_STATE_MODAL_DISMISS))
  96
  97     this.openModalsIfNeeded()
  98
  99     this.document.documentElement.lang = getShortLocale(this.localeId)
 100   }
 101
 102   ngAfterViewInit () {
 103     this.pluginService.initializeCustomModal(this.customModal)
 104   }
 105
 106   isUserLoggedIn () {
 107     return this.authService.isLoggedIn()
 108   }
 109
 110   hideBroadcastMessage () {
 111     peertubeLocalStorage.setItem(AppComponent.BROADCAST_MESSAGE_KEY, this.serverConfig.broadcastMessage.message)
 112
 113     this.broadcastMessage = null
 114     this.screenService.isBroadcastMessageDisplayed = false
 115   }
 116
 117   private initRouteEvents () {
 118     let resetScroll = true
 119     const eventsObs = this.router.events
 120
 121     const scrollEvent = eventsObs.pipe(filter((e: Event): e is Scroll => e instanceof Scroll))
 122
 123     scrollEvent.subscribe(e => {
 124       // scrollToAnchor first to preserve anchor position when using history navigation
 125       if (e.anchor) {
 126         setTimeout(() => {
 127           this.viewportScroller.scrollToAnchor(e.anchor)
 128         })
 129
 130         return
 131       }
 132
 133       if (e.position) {
 134         return this.viewportScroller.scrollToPosition(e.position)
 135       }
 136
 137       if (resetScroll) {
 138         return this.viewportScroller.scrollToPosition([ 0, 0 ])
 139       }
 140     })
 141
 142     const navigationEndEvent = eventsObs.pipe(filter((e: Event): e is NavigationEnd => e instanceof NavigationEnd))
 143
 144     // When we add the a-state parameter, we don't want to alter the scroll
 145     navigationEndEvent.pipe(pairwise())
 146                       .subscribe(([ e1, e2 ]) => {
 147                         try {
 148                           resetScroll = false
 149
 150                           const previousUrl = new URL(window.location.origin + e1.urlAfterRedirects)
 151                           const nextUrl = new URL(window.location.origin + e2.urlAfterRedirects)
 152
 153                           if (previousUrl.pathname !== nextUrl.pathname) {
 154                             resetScroll = true
 155                             return
 156                           }
 157
 158                           const nextSearchParams = nextUrl.searchParams
 159                           nextSearchParams.delete('a-state')
 160
 161                           const previousSearchParams = previousUrl.searchParams
 162
 163                           nextSearchParams.sort()
 164                           previousSearchParams.sort()
 165
 166                           if (nextSearchParams.toString() !== previousSearchParams.toString()) {
 167                             resetScroll = true
 168                           }
 169                         } catch (e) {
 170                           console.error('Cannot parse URL to check next scroll.', e)
 171                           resetScroll = true
 172                         }
 173                       })
 174
 175     navigationEndEvent.pipe(
 176       map(() => window.location.pathname),
 177       filter(pathname => !pathname || pathname === '/' || is18nPath(pathname))
 178     ).subscribe(() => this.redirectService.redirectToHomepage(true))
 179
 180     navigationEndEvent.subscribe(e => {
 181       this.hooks.runAction('action:router.navigation-end', 'common', { path: e.url })
 182     })
 183
 184     eventsObs.pipe(
 185       filter((e: Event): e is GuardsCheckStart => e instanceof GuardsCheckStart),
 186       filter(() => this.screenService.isInSmallView() || this.screenService.isInTouchScreen())
 187     ).subscribe(() => this.menu.setMenuDisplay(false)) // User clicked on a link in the menu, change the page
 188   }
 189
 190   private injectBroadcastMessage () {
 191     concat(
 192       this.serverService.getConfig().pipe(first()),
 193       this.serverService.configReloaded
 194     ).subscribe(async config => {
 195       this.broadcastMessage = null
 196       this.screenService.isBroadcastMessageDisplayed = false
 197
 198       const messageConfig = config.broadcastMessage
 199
 200       if (messageConfig.enabled) {
 201         // Already dismissed this message?
 202         if (messageConfig.dismissable && localStorage.getItem(AppComponent.BROADCAST_MESSAGE_KEY) === messageConfig.message) {
 203           return
 204         }
 205
 206         const classes: { [id in BroadcastMessageLevel]: string } = {
 207           info: 'alert-info',
 208           warning: 'alert-warning',
 209           error: 'alert-danger'
 210         }
 211
 212         this.broadcastMessage = {
 213           message: await this.markdownService.completeMarkdownToHTML(messageConfig.message),
 214           dismissable: messageConfig.dismissable,
 215           class: classes[messageConfig.level]
 216         }
 217
 218         this.screenService.isBroadcastMessageDisplayed = true
 219       }
 220     })
 221   }
 222
 223   private injectJS () {
 224     // Inject JS
 225     this.serverService.getConfig()
 226         .subscribe(config => {
 227           if (config.instance.customizations.javascript) {
 228             try {
 229               // tslint:disable:no-eval
 230               eval(config.instance.customizations.javascript)
 231             } catch (err) {
 232               console.error('Cannot eval custom JavaScript.', err)
 233             }
 234           }
 235         })
 236   }
 237
 238   private injectCSS () {
 239     // Inject CSS if modified (admin config settings)
 240     concat(
 241       this.serverService.getConfig().pipe(first()),
 242       this.serverService.configReloaded
 243     ).subscribe(config => {
 244       const headStyle = document.querySelector('style.custom-css-style')
 245       if (headStyle) headStyle.parentNode.removeChild(headStyle)
 246
 247       // We test customCSS if the admin removed the css
 248       if (this.customCSS || config.instance.customizations.css) {
 249         const styleTag = '<style>' + config.instance.customizations.css + '</style>'
 250         this.customCSS = this.domSanitizer.bypassSecurityTrustHtml(styleTag)
 251       }
 252     })
 253   }
 254
 255   private async loadPlugins () {
 256     this.pluginService.initializePlugins()
 257
 258     this.hooks.runAction('action:application.init', 'common')
 259   }
 260
 261   private async openModalsIfNeeded () {
 262     this.authService.userInformationLoaded
 263         .pipe(
 264           map(() => this.authService.getUser()),
 265           filter(user => user.role === UserRole.ADMINISTRATOR)
 266         ).subscribe(user => setTimeout(() => this._openAdminModalsIfNeeded(user))) // setTimeout because of ngIf in template
 267   }
 268
 269   private async _openAdminModalsIfNeeded (user: User) {
 270     if (user.noWelcomeModal !== true) return this.welcomeModal.show()
 271
 272     if (user.noInstanceConfigWarningModal === true || !this.serverConfig.signup.allowed) return
 273
 274     this.instanceService.getAbout()
 275       .subscribe(about => {
 276         if (
 277           this.serverConfig.instance.name.toLowerCase() === 'peertube' ||
 278           !about.instance.terms ||
 279           !about.instance.administrator ||
 280           !about.instance.maintenanceLifetime
 281         ) {
 282           this.instanceConfigWarningModal.show(about)
 283         }
 284       })
 285   }
 286
 287   private initHotkeys () {
 288     this.hotkeysService.add([
 289       new Hotkey(['/', 's'], (event: KeyboardEvent): boolean => {
 290         document.getElementById('search-video').focus()
 291         return false
 292       }, undefined, $localize`Focus the search bar`),
 293
 294       new Hotkey('b', (event: KeyboardEvent): boolean => {
 295         this.menu.toggleMenu()
 296         return false
 297       }, undefined, $localize`Toggle the left menu`),
 298
 299       new Hotkey('g o', (event: KeyboardEvent): boolean => {
 300         this.router.navigate([ '/videos/overview' ])
 301         return false
 302       }, undefined, $localize`Go to the discover videos page`),
 303
 304       new Hotkey('g t', (event: KeyboardEvent): boolean => {
 305         this.router.navigate([ '/videos/trending' ])
 306         return false
 307       }, undefined, $localize`Go to the trending videos page`),
 308
 309       new Hotkey('g r', (event: KeyboardEvent): boolean => {
 310         this.router.navigate([ '/videos/recently-added' ])
 311         return false
 312       }, undefined, $localize`Go to the recently added videos page`),
 313
 314       new Hotkey('g l', (event: KeyboardEvent): boolean => {
 315         this.router.navigate([ '/videos/local' ])
 316         return false
 317       }, undefined, $localize`Go to the local videos page`),
 318
 319       new Hotkey('g u', (event: KeyboardEvent): boolean => {
 320         this.router.navigate([ '/videos/upload' ])
 321         return false
 322       }, undefined, $localize`Go to the videos upload page`)
 323     ])
 324   }
 325 }