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 { NgbModal } from '@ng-bootstrap/ng-bootstrap'
  15 import { I18n } from '@ngx-translate/i18n-polyfill'
  16 import { BroadcastMessageLevel, getShortLocale, is18nPath, ServerConfig, UserRole } from '@shared/models'
  17 import { MenuService } from './core/menu/menu.service'
  18 import { peertubeLocalStorage, POP_STATE_MODAL_DISMISS } from './helpers'
  19 import { InstanceService } from './shared/shared-instance'
  20
  21 @Component({
  22   selector: 'my-app',
  23   templateUrl: './app.component.html',
  24   styleUrls: [ './app.component.scss' ]
  25 })
  26 export class AppComponent implements OnInit, AfterViewInit {
  27   private static BROADCAST_MESSAGE_KEY = 'app-broadcast-message-dismissed'
  28
  29   @ViewChild('welcomeModal') welcomeModal: WelcomeModalComponent
  30   @ViewChild('instanceConfigWarningModal') instanceConfigWarningModal: InstanceConfigWarningModalComponent
  31   @ViewChild('customModal') customModal: CustomModalComponent
  32
  33   customCSS: SafeHtml
  34   broadcastMessage: { message: string, dismissable: boolean, class: string } | null = null
  35
  36   private serverConfig: ServerConfig
  37
  38   constructor (
  39     @Inject(DOCUMENT) private document: Document,
  40     @Inject(LOCALE_ID) private localeId: string,
  41     private i18n: I18n,
  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     public menu: MenuService
  58   ) { }
  59
  60   get instanceName () {
  61     return this.serverConfig.instance.name
  62   }
  63
  64   get defaultRoute () {
  65     return RedirectService.DEFAULT_ROUTE
  66   }
  67
  68   ngOnInit () {
  69     document.getElementById('incompatible-browser').className += ' browser-ok'
  70
  71     this.serverConfig = this.serverService.getTmpConfig()
  72     this.serverService.getConfig()
  73         .subscribe(config => this.serverConfig = config)
  74
  75     this.loadPlugins()
  76     this.themeService.initialize()
  77
  78     this.authService.loadClientCredentials()
  79
  80     if (this.isUserLoggedIn()) {
  81       // The service will automatically redirect to the login page if the token is not valid anymore
  82       this.authService.refreshUserInformation()
  83     }
  84
  85     this.initRouteEvents()
  86     this.injectJS()
  87     this.injectCSS()
  88     this.injectBroadcastMessage()
  89
  90     this.initHotkeys()
  91
  92     this.location.onPopState(() => this.modalService.dismissAll(POP_STATE_MODAL_DISMISS))
  93
  94     this.openModalsIfNeeded()
  95
  96     this.document.documentElement.lang = getShortLocale(this.localeId)
  97   }
  98
  99   ngAfterViewInit () {
 100     this.pluginService.initializeCustomModal(this.customModal)
 101   }
 102
 103   isUserLoggedIn () {
 104     return this.authService.isLoggedIn()
 105   }
 106
 107   hideBroadcastMessage () {
 108     peertubeLocalStorage.setItem(AppComponent.BROADCAST_MESSAGE_KEY, this.serverConfig.broadcastMessage.message)
 109
 110     this.broadcastMessage = null
 111   }
 112
 113   private initRouteEvents () {
 114     let resetScroll = true
 115     const eventsObs = this.router.events
 116
 117     const scrollEvent = eventsObs.pipe(filter((e: Event): e is Scroll => e instanceof Scroll))
 118
 119     scrollEvent.subscribe(e => {
 120       if (e.position) {
 121         return this.viewportScroller.scrollToPosition(e.position)
 122       }
 123
 124       if (e.anchor) {
 125         return this.viewportScroller.scrollToAnchor(e.anchor)
 126       }
 127
 128       if (resetScroll) {
 129         return this.viewportScroller.scrollToPosition([ 0, 0 ])
 130       }
 131     })
 132
 133     const navigationEndEvent = eventsObs.pipe(filter((e: Event): e is NavigationEnd => e instanceof NavigationEnd))
 134
 135     // When we add the a-state parameter, we don't want to alter the scroll
 136     navigationEndEvent.pipe(pairwise())
 137                       .subscribe(([ e1, e2 ]) => {
 138                         try {
 139                           resetScroll = false
 140
 141                           const previousUrl = new URL(window.location.origin + e1.urlAfterRedirects)
 142                           const nextUrl = new URL(window.location.origin + e2.urlAfterRedirects)
 143
 144                           if (previousUrl.pathname !== nextUrl.pathname) {
 145                             resetScroll = true
 146                             return
 147                           }
 148
 149                           const nextSearchParams = nextUrl.searchParams
 150                           nextSearchParams.delete('a-state')
 151
 152                           const previousSearchParams = previousUrl.searchParams
 153
 154                           nextSearchParams.sort()
 155                           previousSearchParams.sort()
 156
 157                           if (nextSearchParams.toString() !== previousSearchParams.toString()) {
 158                             resetScroll = true
 159                           }
 160                         } catch (e) {
 161                           console.error('Cannot parse URL to check next scroll.', e)
 162                           resetScroll = true
 163                         }
 164                       })
 165
 166     navigationEndEvent.pipe(
 167       map(() => window.location.pathname),
 168       filter(pathname => !pathname || pathname === '/' || is18nPath(pathname))
 169     ).subscribe(() => this.redirectService.redirectToHomepage(true))
 170
 171     navigationEndEvent.subscribe(e => {
 172       this.hooks.runAction('action:router.navigation-end', 'common', { path: e.url })
 173     })
 174
 175     eventsObs.pipe(
 176       filter((e: Event): e is GuardsCheckStart => e instanceof GuardsCheckStart),
 177       filter(() => this.screenService.isInSmallView())
 178     ).subscribe(() => this.menu.isMenuDisplayed = false) // User clicked on a link in the menu, change the page
 179   }
 180
 181   private injectBroadcastMessage () {
 182     concat(
 183       this.serverService.getConfig().pipe(first()),
 184       this.serverService.configReloaded
 185     ).subscribe(async config => {
 186       this.broadcastMessage = null
 187
 188       const messageConfig = config.broadcastMessage
 189
 190       if (messageConfig.enabled) {
 191         // Already dismissed this message?
 192         if (messageConfig.dismissable && localStorage.getItem(AppComponent.BROADCAST_MESSAGE_KEY) === messageConfig.message) {
 193           return
 194         }
 195
 196         const classes: { [id in BroadcastMessageLevel]: string } = {
 197           info: 'alert-info',
 198           warning: 'alert-warning',
 199           error: 'alert-danger'
 200         }
 201
 202         this.broadcastMessage = {
 203           message: await this.markdownService.completeMarkdownToHTML(messageConfig.message),
 204           dismissable: messageConfig.dismissable,
 205           class: classes[messageConfig.level]
 206         }
 207       }
 208     })
 209   }
 210
 211   private injectJS () {
 212     // Inject JS
 213     this.serverService.getConfig()
 214         .subscribe(config => {
 215           if (config.instance.customizations.javascript) {
 216             try {
 217               // tslint:disable:no-eval
 218               eval(config.instance.customizations.javascript)
 219             } catch (err) {
 220               console.error('Cannot eval custom JavaScript.', err)
 221             }
 222           }
 223         })
 224   }
 225
 226   private injectCSS () {
 227     // Inject CSS if modified (admin config settings)
 228     concat(
 229       this.serverService.getConfig().pipe(first()),
 230       this.serverService.configReloaded
 231     ).subscribe(config => {
 232       const headStyle = document.querySelector('style.custom-css-style')
 233       if (headStyle) headStyle.parentNode.removeChild(headStyle)
 234
 235       // We test customCSS if the admin removed the css
 236       if (this.customCSS || config.instance.customizations.css) {
 237         const styleTag = '<style>' + config.instance.customizations.css + '</style>'
 238         this.customCSS = this.domSanitizer.bypassSecurityTrustHtml(styleTag)
 239       }
 240     })
 241   }
 242
 243   private async loadPlugins () {
 244     this.pluginService.initializePlugins()
 245
 246     this.hooks.runAction('action:application.init', 'common')
 247   }
 248
 249   private async openModalsIfNeeded () {
 250     this.authService.userInformationLoaded
 251         .pipe(
 252           map(() => this.authService.getUser()),
 253           filter(user => user.role === UserRole.ADMINISTRATOR)
 254         ).subscribe(user => setTimeout(() => this._openAdminModalsIfNeeded(user))) // setTimeout because of ngIf in template
 255   }
 256
 257   private async _openAdminModalsIfNeeded (user: User) {
 258     if (user.noWelcomeModal !== true) return this.welcomeModal.show()
 259
 260     if (user.noInstanceConfigWarningModal === true || !this.serverConfig.signup.allowed) return
 261
 262     this.instanceService.getAbout()
 263       .subscribe(about => {
 264         if (
 265           this.serverConfig.instance.name.toLowerCase() === 'peertube' ||
 266           !about.instance.terms ||
 267           !about.instance.administrator ||
 268           !about.instance.maintenanceLifetime
 269         ) {
 270           this.instanceConfigWarningModal.show(about)
 271         }
 272       })
 273   }
 274
 275   private initHotkeys () {
 276     this.hotkeysService.add([
 277       new Hotkey(['/', 's'], (event: KeyboardEvent): boolean => {
 278         document.getElementById('search-video').focus()
 279         return false
 280       }, undefined, this.i18n('Focus the search bar')),
 281
 282       new Hotkey('b', (event: KeyboardEvent): boolean => {
 283         this.menu.toggleMenu()
 284         return false
 285       }, undefined, this.i18n('Toggle the left menu')),
 286
 287       new Hotkey('g o', (event: KeyboardEvent): boolean => {
 288         this.router.navigate([ '/videos/overview' ])
 289         return false
 290       }, undefined, this.i18n('Go to the discover videos page')),
 291
 292       new Hotkey('g t', (event: KeyboardEvent): boolean => {
 293         this.router.navigate([ '/videos/trending' ])
 294         return false
 295       }, undefined, this.i18n('Go to the trending videos page')),
 296
 297       new Hotkey('g r', (event: KeyboardEvent): boolean => {
 298         this.router.navigate([ '/videos/recently-added' ])
 299         return false
 300       }, undefined, this.i18n('Go to the recently added videos page')),
 301
 302       new Hotkey('g l', (event: KeyboardEvent): boolean => {
 303         this.router.navigate([ '/videos/local' ])
 304         return false
 305       }, undefined, this.i18n('Go to the local videos page')),
 306
 307       new Hotkey('g u', (event: KeyboardEvent): boolean => {
 308         this.router.navigate([ '/videos/upload' ])
 309         return false
 310       }, undefined, this.i18n('Go to the videos upload page'))
 311     ])
 312   }
 313 }