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