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 { POP_STATE_MODAL_DISMISS } from './helpers'
  19 import { peertubeLocalStorage } from '@root-helpers/peertube-web-storage'
  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 i18n: I18n,
  43     private viewportScroller: ViewportScroller,
  44     private router: Router,
  45     private authService: AuthService,
  46     private serverService: ServerService,
  47     private pluginService: PluginService,
  48     private instanceService: InstanceService,
  49     private domSanitizer: DomSanitizer,
  50     private redirectService: RedirectService,
  51     private screenService: ScreenService,
  52     private hotkeysService: HotkeysService,
  53     private themeService: ThemeService,
  54     private hooks: HooksService,
  55     private location: PlatformLocation,
  56     private modalService: NgbModal,
  57     private markdownService: MarkdownService,
  58     public menu: MenuService
  59   ) { }
  60
  61   get instanceName () {
  62     return this.serverConfig.instance.name
  63   }
  64
  65   get defaultRoute () {
  66     return RedirectService.DEFAULT_ROUTE
  67   }
  68
  69   ngOnInit () {
  70     document.getElementById('incompatible-browser').className += ' browser-ok'
  71
  72     this.serverConfig = this.serverService.getTmpConfig()
  73     this.serverService.getConfig()
  74         .subscribe(config => this.serverConfig = config)
  75
  76     this.loadPlugins()
  77     this.themeService.initialize()
  78
  79     this.authService.loadClientCredentials()
  80
  81     if (this.isUserLoggedIn()) {
  82       // The service will automatically redirect to the login page if the token is not valid anymore
  83       this.authService.refreshUserInformation()
  84     }
  85
  86     this.initRouteEvents()
  87     this.injectJS()
  88     this.injectCSS()
  89     this.injectBroadcastMessage()
  90
  91     this.initHotkeys()
  92
  93     this.location.onPopState(() => this.modalService.dismissAll(POP_STATE_MODAL_DISMISS))
  94
  95     this.openModalsIfNeeded()
  96
  97     this.document.documentElement.lang = getShortLocale(this.localeId)
  98   }
  99
 100   ngAfterViewInit () {
 101     this.pluginService.initializeCustomModal(this.customModal)
 102   }
 103
 104   isUserLoggedIn () {
 105     return this.authService.isLoggedIn()
 106   }
 107
 108   hideBroadcastMessage () {
 109     peertubeLocalStorage.setItem(AppComponent.BROADCAST_MESSAGE_KEY, this.serverConfig.broadcastMessage.message)
 110
 111     this.broadcastMessage = null
 112   }
 113
 114   private initRouteEvents () {
 115     let resetScroll = true
 116     const eventsObs = this.router.events
 117
 118     const scrollEvent = eventsObs.pipe(filter((e: Event): e is Scroll => e instanceof Scroll))
 119
 120     scrollEvent.subscribe(e => {
 121       if (e.position) {
 122         return this.viewportScroller.scrollToPosition(e.position)
 123       }
 124
 125       if (e.anchor) {
 126         return this.viewportScroller.scrollToAnchor(e.anchor)
 127       }
 128
 129       if (resetScroll) {
 130         return this.viewportScroller.scrollToPosition([ 0, 0 ])
 131       }
 132     })
 133
 134     const navigationEndEvent = eventsObs.pipe(filter((e: Event): e is NavigationEnd => e instanceof NavigationEnd))
 135
 136     // When we add the a-state parameter, we don't want to alter the scroll
 137     navigationEndEvent.pipe(pairwise())
 138                       .subscribe(([ e1, e2 ]) => {
 139                         try {
 140                           resetScroll = false
 141
 142                           const previousUrl = new URL(window.location.origin + e1.urlAfterRedirects)
 143                           const nextUrl = new URL(window.location.origin + e2.urlAfterRedirects)
 144
 145                           if (previousUrl.pathname !== nextUrl.pathname) {
 146                             resetScroll = true
 147                             return
 148                           }
 149
 150                           const nextSearchParams = nextUrl.searchParams
 151                           nextSearchParams.delete('a-state')
 152
 153                           const previousSearchParams = previousUrl.searchParams
 154
 155                           nextSearchParams.sort()
 156                           previousSearchParams.sort()
 157
 158                           if (nextSearchParams.toString() !== previousSearchParams.toString()) {
 159                             resetScroll = true
 160                           }
 161                         } catch (e) {
 162                           console.error('Cannot parse URL to check next scroll.', e)
 163                           resetScroll = true
 164                         }
 165                       })
 166
 167     navigationEndEvent.pipe(
 168       map(() => window.location.pathname),
 169       filter(pathname => !pathname || pathname === '/' || is18nPath(pathname))
 170     ).subscribe(() => this.redirectService.redirectToHomepage(true))
 171
 172     navigationEndEvent.subscribe(e => {
 173       this.hooks.runAction('action:router.navigation-end', 'common', { path: e.url })
 174     })
 175
 176     eventsObs.pipe(
 177       filter((e: Event): e is GuardsCheckStart => e instanceof GuardsCheckStart),
 178       filter(() => this.screenService.isInSmallView())
 179     ).subscribe(() => this.menu.isMenuDisplayed = false) // User clicked on a link in the menu, change the page
 180   }
 181
 182   private injectBroadcastMessage () {
 183     concat(
 184       this.serverService.getConfig().pipe(first()),
 185       this.serverService.configReloaded
 186     ).subscribe(async config => {
 187       this.broadcastMessage = null
 188
 189       const messageConfig = config.broadcastMessage
 190
 191       if (messageConfig.enabled) {
 192         // Already dismissed this message?
 193         if (messageConfig.dismissable && localStorage.getItem(AppComponent.BROADCAST_MESSAGE_KEY) === messageConfig.message) {
 194           return
 195         }
 196
 197         const classes: { [id in BroadcastMessageLevel]: string } = {
 198           info: 'alert-info',
 199           warning: 'alert-warning',
 200           error: 'alert-danger'
 201         }
 202
 203         this.broadcastMessage = {
 204           message: await this.markdownService.completeMarkdownToHTML(messageConfig.message),
 205           dismissable: messageConfig.dismissable,
 206           class: classes[messageConfig.level]
 207         }
 208       }
 209     })
 210   }
 211
 212   private injectJS () {
 213     // Inject JS
 214     this.serverService.getConfig()
 215         .subscribe(config => {
 216           if (config.instance.customizations.javascript) {
 217             try {
 218               // tslint:disable:no-eval
 219               eval(config.instance.customizations.javascript)
 220             } catch (err) {
 221               console.error('Cannot eval custom JavaScript.', err)
 222             }
 223           }
 224         })
 225   }
 226
 227   private injectCSS () {
 228     // Inject CSS if modified (admin config settings)
 229     concat(
 230       this.serverService.getConfig().pipe(first()),
 231       this.serverService.configReloaded
 232     ).subscribe(config => {
 233       const headStyle = document.querySelector('style.custom-css-style')
 234       if (headStyle) headStyle.parentNode.removeChild(headStyle)
 235
 236       // We test customCSS if the admin removed the css
 237       if (this.customCSS || config.instance.customizations.css) {
 238         const styleTag = '<style>' + config.instance.customizations.css + '</style>'
 239         this.customCSS = this.domSanitizer.bypassSecurityTrustHtml(styleTag)
 240       }
 241     })
 242   }
 243
 244   private async loadPlugins () {
 245     this.pluginService.initializePlugins()
 246
 247     this.hooks.runAction('action:application.init', 'common')
 248   }
 249
 250   private async openModalsIfNeeded () {
 251     this.authService.userInformationLoaded
 252         .pipe(
 253           map(() => this.authService.getUser()),
 254           filter(user => user.role === UserRole.ADMINISTRATOR)
 255         ).subscribe(user => setTimeout(() => this._openAdminModalsIfNeeded(user))) // setTimeout because of ngIf in template
 256   }
 257
 258   private async _openAdminModalsIfNeeded (user: User) {
 259     if (user.noWelcomeModal !== true) return this.welcomeModal.show()
 260
 261     if (user.noInstanceConfigWarningModal === true || !this.serverConfig.signup.allowed) return
 262
 263     this.instanceService.getAbout()
 264       .subscribe(about => {
 265         if (
 266           this.serverConfig.instance.name.toLowerCase() === 'peertube' ||
 267           !about.instance.terms ||
 268           !about.instance.administrator ||
 269           !about.instance.maintenanceLifetime
 270         ) {
 271           this.instanceConfigWarningModal.show(about)
 272         }
 273       })
 274   }
 275
 276   private initHotkeys () {
 277     this.hotkeysService.add([
 278       new Hotkey(['/', 's'], (event: KeyboardEvent): boolean => {
 279         document.getElementById('search-video').focus()
 280         return false
 281       }, undefined, this.i18n('Focus the search bar')),
 282
 283       new Hotkey('b', (event: KeyboardEvent): boolean => {
 284         this.menu.toggleMenu()
 285         return false
 286       }, undefined, this.i18n('Toggle the left menu')),
 287
 288       new Hotkey('g o', (event: KeyboardEvent): boolean => {
 289         this.router.navigate([ '/videos/overview' ])
 290         return false
 291       }, undefined, this.i18n('Go to the discover videos page')),
 292
 293       new Hotkey('g t', (event: KeyboardEvent): boolean => {
 294         this.router.navigate([ '/videos/trending' ])
 295         return false
 296       }, undefined, this.i18n('Go to the trending videos page')),
 297
 298       new Hotkey('g r', (event: KeyboardEvent): boolean => {
 299         this.router.navigate([ '/videos/recently-added' ])
 300         return false
 301       }, undefined, this.i18n('Go to the recently added videos page')),
 302
 303       new Hotkey('g l', (event: KeyboardEvent): boolean => {
 304         this.router.navigate([ '/videos/local' ])
 305         return false
 306       }, undefined, this.i18n('Go to the local videos page')),
 307
 308       new Hotkey('g u', (event: KeyboardEvent): boolean => {
 309         this.router.navigate([ '/videos/upload' ])
 310         return false
 311       }, undefined, this.i18n('Go to the videos upload page'))
 312     ])
 313   }
 314 }