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import { AfterViewInit, Component, ElementRef, OnInit, ViewChild } from '@angular/core'
import { ActivatedRoute, Router } from '@angular/router'
import { AuthService, Notifier, RedirectService, SessionStorageService, UserService } from '@app/core'
import { HooksService } from '@app/core/plugins/hooks.service'
import { LOGIN_PASSWORD_VALIDATOR, LOGIN_USERNAME_VALIDATOR } from '@app/shared/form-validators/login-validators'
import { FormReactive, FormValidatorService } from '@app/shared/shared-forms'
import { InstanceAboutAccordionComponent } from '@app/shared/shared-instance'
import { NgbAccordion, NgbModal, NgbModalRef } from '@ng-bootstrap/ng-bootstrap'
import { PluginsManager } from '@root-helpers/plugins-manager'
import { RegisteredExternalAuthConfig, ServerConfig } from '@shared/models'
@Component({
selector: 'my-login',
templateUrl: './login.component.html',
styleUrls: [ './login.component.scss' ]
})
export class LoginComponent extends FormReactive implements OnInit, AfterViewInit {
private static SESSION_STORAGE_REDIRECT_URL_KEY = 'login-previous-url'
@ViewChild('forgotPasswordModal', { static: true }) forgotPasswordModal: ElementRef
accordion: NgbAccordion
error: string = null
forgotPasswordEmail = ''
isAuthenticatedWithExternalAuth = false
externalAuthError = false
externalLogins: string[] = []
instanceInformationPanels = {
terms: true,
administrators: false,
features: false,
moderation: false,
codeOfConduct: false
}
private openedForgotPasswordModal: NgbModalRef
private serverConfig: ServerConfig
constructor (
protected formValidatorService: FormValidatorService,
private route: ActivatedRoute,
private modalService: NgbModal,
private authService: AuthService,
private userService: UserService,
private redirectService: RedirectService,
private notifier: Notifier,
private hooks: HooksService,
private storage: SessionStorageService,
private router: Router
) {
super()
}
get signupAllowed () {
return this.serverConfig.signup.allowed === true
}
get instanceName () {
return this.serverConfig.instance.name
}
onTermsClick (event: Event, instanceInformation: HTMLElement) {
event.preventDefault()
if (this.accordion) {
this.accordion.expand('terms')
instanceInformation.scrollIntoView({ behavior: 'smooth' })
}
}
isEmailDisabled () {
return this.serverConfig.email.enabled === false
}
ngOnInit () {
const snapshot = this.route.snapshot
// Avoid undefined errors when accessing form error properties
this.buildForm({
username: LOGIN_USERNAME_VALIDATOR,
password: LOGIN_PASSWORD_VALIDATOR
})
this.serverConfig = snapshot.data.serverConfig
if (snapshot.queryParams.externalAuthToken) {
this.loadExternalAuthToken(snapshot.queryParams.username, snapshot.queryParams.externalAuthToken)
return
}
if (snapshot.queryParams.externalAuthError) {
this.externalAuthError = true
return
}
const previousUrl = this.redirectService.getPreviousUrl()
if (previousUrl && previousUrl !== '/') {
this.storage.setItem(LoginComponent.SESSION_STORAGE_REDIRECT_URL_KEY, previousUrl)
}
}
ngAfterViewInit () {
this.hooks.runAction('action:login.init', 'login')
}
getExternalLogins () {
return this.serverConfig.plugin.registeredExternalAuths
}
getAuthHref (auth: RegisteredExternalAuthConfig) {
return PluginsManager.getExternalAuthHref(auth)
}
login () {
this.error = null
const { username, password } = this.form.value
this.authService.login(username, password)
.subscribe({
next: () => this.redirectService.redirectToPreviousRoute(),
error: err => this.handleError(err)
})
}
askResetPassword () {
this.userService.askResetPassword(this.forgotPasswordEmail)
.subscribe({
next: () => {
const message = $localize`An email with the reset password instructions will be sent to ${this.forgotPasswordEmail}.
The link will expire within 1 hour.`
this.notifier.success(message)
this.hideForgotPasswordModal()
},
error: err => this.notifier.error(err.message)
})
}
openForgotPasswordModal () {
this.openedForgotPasswordModal = this.modalService.open(this.forgotPasswordModal)
}
hideForgotPasswordModal () {
this.openedForgotPasswordModal.close()
}
onInstanceAboutAccordionInit (instanceAboutAccordion: InstanceAboutAccordionComponent) {
this.accordion = instanceAboutAccordion.accordion
}
hasUsernameUppercase () {
return this.form.value['username'].match(/[A-Z]/)
}
private loadExternalAuthToken (username: string, token: string) {
this.isAuthenticatedWithExternalAuth = true
this.authService.login(username, null, token)
.subscribe({
next: () => {
const redirectUrl = this.storage.getItem(LoginComponent.SESSION_STORAGE_REDIRECT_URL_KEY)
if (redirectUrl) {
this.storage.removeItem(LoginComponent.SESSION_STORAGE_REDIRECT_URL_KEY)
return this.router.navigateByUrl(redirectUrl)
}
this.redirectService.redirectToLatestSessionRoute()
},
error: err => {
this.handleError(err)
this.isAuthenticatedWithExternalAuth = false
}
})
}
private handleError (err: any) {
if (err.message.indexOf('credentials are invalid') !== -1) this.error = $localize`Incorrect username or password.`
else if (err.message.indexOf('blocked') !== -1) this.error = $localize`Your account is blocked.`
else this.error = err.message
}
}
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