Open-ILS/src/eg2/src/app/staff/login.component.ts

   1 import {Component, OnInit, Renderer2} from '@angular/core';
   2 import {Location} from '@angular/common';
   3 import {Router, ActivatedRoute} from '@angular/router';
   4 import {AuthService, AuthWsState} from '@eg/core/auth.service';
   5 import {StoreService} from '@eg/core/store.service';
   6
   7 @Component({
   8   templateUrl : './login.component.html'
   9 })
  10
  11 export class StaffLoginComponent implements OnInit {
  12
  13     workstations: any[];
  14     loginFailed: boolean;
  15
  16     args = {
  17       username : '',
  18       password : '',
  19       workstation : '',
  20       type : 'staff'
  21     };
  22
  23     constructor(
  24       private router: Router,
  25       private route: ActivatedRoute,
  26       private ngLocation: Location,
  27       private renderer: Renderer2,
  28       private auth: AuthService,
  29       private store: StoreService
  30     ) {}
  31
  32     ngOnInit() {
  33         // clear out any stale auth data
  34         this.auth.logout();
  35
  36         // Focus username
  37         this.renderer.selectRootElement('#username').focus();
  38
  39         this.store.getWorkstations()
  40         .then(wsList => {
  41             this.workstations = wsList;
  42             return this.store.getDefaultWorkstation();
  43         }).then(def => {
  44             this.args.workstation = def;
  45             this.applyWorkstation();
  46         });
  47     }
  48
  49     applyWorkstation() {
  50         const wanted = this.route.snapshot.queryParamMap.get('workstation');
  51         if (!wanted) { return; } // use the default
  52
  53         const exists = this.workstations.filter(w => w.name === wanted)[0];
  54         if (exists) {
  55             this.args.workstation = wanted;
  56         } else {
  57             console.error(`Unknown workstation requested: ${wanted}`);
  58         }
  59     }
  60
  61     handleSubmit() {
  62
  63         // post-login URL
  64         let url: string = this.auth.redirectUrl || '/staff/splash';
  65
  66         // prevent sending the user back to the login page
  67         if (url.startsWith('/staff/login')) {
  68             url = '/staff/splash';
  69         }
  70
  71         const workstation: string = this.args.workstation;
  72
  73         this.loginFailed = false;
  74         this.auth.login(this.args).then(
  75             ok => {
  76                 this.auth.redirectUrl = null;
  77
  78                 if (this.auth.workstationState === AuthWsState.NOT_FOUND_SERVER) {
  79                     // User attempted to login with a workstation that is
  80                     // unknown to the server. Redirect to the WS admin page.
  81                     // Reset the WS state to avoid looping back to WS removal
  82                     // page before the new workstation can be activated.
  83                     this.auth.workstationState = AuthWsState.PENDING;
  84                     this.router.navigate(
  85                         [`/staff/admin/workstation/workstations/remove/${workstation}`]);
  86                 } else {
  87                     // Force reload of the app after a successful login.
  88                     // This allows the route resolver to re-run with a
  89                     // valid auth token and workstation.
  90                     window.location.href =
  91                         this.ngLocation.prepareExternalUrl(url);
  92                 }
  93             },
  94             notOk => {
  95                 this.loginFailed = true;
  96             }
  97         );
  98     }
  99 }
 100
 101
 102