client/src/app/+login/login.component.ts

   1
   2 import { AfterViewInit, Component, ElementRef, OnInit, ViewChild } from '@angular/core'
   3 import { ActivatedRoute, Router } from '@angular/router'
   4 import { AuthService, Notifier, RedirectService, SessionStorageService, UserService } from '@app/core'
   5 import { HooksService } from '@app/core/plugins/hooks.service'
   6 import { LOGIN_PASSWORD_VALIDATOR, LOGIN_USERNAME_VALIDATOR } from '@app/shared/form-validators/login-validators'
   7 import { FormReactive, FormValidatorService } from '@app/shared/shared-forms'
   8 import { InstanceAboutAccordionComponent } from '@app/shared/shared-instance'
   9 import { NgbAccordion, NgbModal, NgbModalRef } from '@ng-bootstrap/ng-bootstrap'
  10 import { PluginsManager } from '@root-helpers/plugins-manager'
  11 import { RegisteredExternalAuthConfig, ServerConfig } from '@shared/models'
  12
  13 @Component({
  14   selector: 'my-login',
  15   templateUrl: './login.component.html',
  16   styleUrls: [ './login.component.scss' ]
  17 })
  18
  19 export class LoginComponent extends FormReactive implements OnInit, AfterViewInit {
  20   private static SESSION_STORAGE_REDIRECT_URL_KEY = 'login-previous-url'
  21
  22   @ViewChild('forgotPasswordModal', { static: true }) forgotPasswordModal: ElementRef
  23
  24   accordion: NgbAccordion
  25   error: string = null
  26   forgotPasswordEmail = ''
  27
  28   isAuthenticatedWithExternalAuth = false
  29   externalAuthError = false
  30   externalLogins: string[] = []
  31
  32   instanceInformationPanels = {
  33     terms: true,
  34     administrators: false,
  35     features: false,
  36     moderation: false,
  37     codeOfConduct: false
  38   }
  39
  40   private openedForgotPasswordModal: NgbModalRef
  41   private serverConfig: ServerConfig
  42
  43   constructor (
  44     protected formValidatorService: FormValidatorService,
  45     private route: ActivatedRoute,
  46     private modalService: NgbModal,
  47     private authService: AuthService,
  48     private userService: UserService,
  49     private redirectService: RedirectService,
  50     private notifier: Notifier,
  51     private hooks: HooksService,
  52     private storage: SessionStorageService,
  53     private router: Router
  54   ) {
  55     super()
  56   }
  57
  58   get signupAllowed () {
  59     return this.serverConfig.signup.allowed === true
  60   }
  61
  62   onTermsClick (event: Event, instanceInformation: HTMLElement) {
  63     event.preventDefault()
  64
  65     if (this.accordion) {
  66       this.accordion.expand('terms')
  67       instanceInformation.scrollIntoView({ behavior: 'smooth' })
  68     }
  69   }
  70
  71   isEmailDisabled () {
  72     return this.serverConfig.email.enabled === false
  73   }
  74
  75   ngOnInit () {
  76     const snapshot = this.route.snapshot
  77
  78     // Avoid undefined errors when accessing form error properties
  79     this.buildForm({
  80       username: LOGIN_USERNAME_VALIDATOR,
  81       password: LOGIN_PASSWORD_VALIDATOR
  82     })
  83
  84     this.serverConfig = snapshot.data.serverConfig
  85
  86     if (snapshot.queryParams.externalAuthToken) {
  87       this.loadExternalAuthToken(snapshot.queryParams.username, snapshot.queryParams.externalAuthToken)
  88       return
  89     }
  90
  91     if (snapshot.queryParams.externalAuthError) {
  92       this.externalAuthError = true
  93       return
  94     }
  95
  96     const previousUrl = this.redirectService.getPreviousUrl()
  97     if (previousUrl && previousUrl !== '/') {
  98       this.storage.setItem(LoginComponent.SESSION_STORAGE_REDIRECT_URL_KEY, previousUrl)
  99     }
 100   }
 101
 102   ngAfterViewInit () {
 103     this.hooks.runAction('action:login.init', 'login')
 104   }
 105
 106   getExternalLogins () {
 107     return this.serverConfig.plugin.registeredExternalAuths
 108   }
 109
 110   getAuthHref (auth: RegisteredExternalAuthConfig) {
 111     return PluginsManager.getExternalAuthHref(auth)
 112   }
 113
 114   login () {
 115     this.error = null
 116
 117     const { username, password } = this.form.value
 118
 119     this.authService.login(username, password)
 120       .subscribe({
 121         next: () => this.redirectService.redirectToPreviousRoute(),
 122
 123         error: err => this.handleError(err)
 124       })
 125   }
 126
 127   askResetPassword () {
 128     this.userService.askResetPassword(this.forgotPasswordEmail)
 129       .subscribe({
 130         next: () => {
 131           const message = $localize`An email with the reset password instructions will be sent to ${this.forgotPasswordEmail}.
 132 The link will expire within 1 hour.`
 133
 134           this.notifier.success(message)
 135           this.hideForgotPasswordModal()
 136         },
 137
 138         error: err => this.notifier.error(err.message)
 139       })
 140   }
 141
 142   openForgotPasswordModal () {
 143     this.openedForgotPasswordModal = this.modalService.open(this.forgotPasswordModal)
 144   }
 145
 146   hideForgotPasswordModal () {
 147     this.openedForgotPasswordModal.close()
 148   }
 149
 150   onInstanceAboutAccordionInit (instanceAboutAccordion: InstanceAboutAccordionComponent) {
 151     this.accordion = instanceAboutAccordion.accordion
 152   }
 153
 154   hasUsernameUppercase () {
 155     return this.form.value['username'].match(/[A-Z]/)
 156   }
 157
 158   private loadExternalAuthToken (username: string, token: string) {
 159     this.isAuthenticatedWithExternalAuth = true
 160
 161     this.authService.login(username, null, token)
 162       .subscribe({
 163         next: () => {
 164           const redirectUrl = this.storage.getItem(LoginComponent.SESSION_STORAGE_REDIRECT_URL_KEY)
 165           if (redirectUrl) {
 166             this.storage.removeItem(LoginComponent.SESSION_STORAGE_REDIRECT_URL_KEY)
 167             return this.router.navigateByUrl(redirectUrl)
 168           }
 169
 170           this.redirectService.redirectToLatestSessionRoute()
 171         },
 172
 173         error: err => {
 174           this.handleError(err)
 175           this.isAuthenticatedWithExternalAuth = false
 176         }
 177       })
 178   }
 179
 180   private handleError (err: any) {
 181     if (err.message.indexOf('credentials are invalid') !== -1) this.error = $localize`Incorrect username or password.`
 182     else if (err.message.indexOf('blocked') !== -1) this.error = $localize`Your account is blocked.`
 183     else this.error = err.message
 184   }
 185 }