moved to single project

ui/hv2-ui/src/app/token.service.ts

@@ -0,0 +1,54 @@
+import { Injectable } from '@angular/core';
+import { MessageService } from './message.service';
+import { HttpClient, HttpHeaders } from '@angular/common/http';
+import { UserCreds } from './userCreds'
+import jwt_decode  from 'jwt-decode'
+
+@Injectable({
+  providedIn: 'root'
+})
+export class TokenService {
+
+  public static Id_Token_Key : string = "id_token";
+
+  constructor(private http: HttpClient, private messageService: MessageService) {
+  }
+
+  checkAuthenticated(): boolean {
+    let result: boolean = false
+
+    const token = localStorage.getItem(TokenService.Id_Token_Key)
+    if (token) {
+      let expiration = jwt_decode(token)["exp"]
+      if ((expiration * 1000) > Date.now()) {
+        result = true
+      } else {
+        this.logout()
+      }
+    }
+
+    return result
+  }
+
+  logout() {
+    localStorage.removeItem(TokenService.Id_Token_Key)
+    this.messageService.add("Token removed from local storage")
+  }
+
+  async login(login: string, password: string) {
+    this.messageService.add(`TokenService: trying to login and obtain token`);
+    const userCreds : UserCreds = {
+      "application": "hv2",
+      "login": login,
+      "password": password
+    }
+    const token = await this.http.post(
+      "https://authservice.hottis.de/token", 
+      userCreds,
+      {responseType:'text'}
+    ).toPromise()
+    localStorage.setItem(TokenService.Id_Token_Key, token)
+    this.messageService.add("Token saved")
+  }
+
+}