Refactor keystore into singleton service.

src/app/_services/auth.service.ts

@@ -3,12 +3,13 @@ import { hobaParseChallengeHeader } from '@src/assets/js/hoba.js';
 import { signChallenge } from '@src/assets/js/hoba-pgp.js';
 import { environment } from '@src/environments/environment';
 import { LoggingService } from '@app/_services/logging.service';
-import { MutableKeyStore, MutablePgpKeyStore } from '@app/_pgp';
+import { MutableKeyStore } from '@app/_pgp';
 import { ErrorDialogService } from '@app/_services/error-dialog.service';
 import { HttpClient } from '@angular/common/http';
 import { HttpError, rejectBody } from '@app/_helpers/global-error-handler';
 import { Staff } from '@app/_models';
 import { BehaviorSubject, Observable } from 'rxjs';
+import { KeystoreService } from '@app/_services/keystore.service';
 
 @Injectable({
   providedIn: 'root',
@@ -25,12 +26,10 @@ export class AuthService {
     private httpClient: HttpClient,
     private loggingService: LoggingService,
     private errorDialogService: ErrorDialogService
-  ) {
-    this.mutableKeyStore = new MutablePgpKeyStore();
-  }
+  ) {}
 
   async init(): Promise<void> {
-    await this.mutableKeyStore.loadKeyring();
+    this.mutableKeyStore = await KeystoreService.getKeystore();
     if (localStorage.getItem(btoa('CICADA_PRIVATE_KEY'))) {
       await this.mutableKeyStore.importPrivateKey(localStorage.getItem(btoa('CICADA_PRIVATE_KEY')));
     }
@@ -59,9 +58,9 @@ export class AuthService {
     };
     return fetch(environment.cicMetaUrl, options).then((response) => {
       if (!response.ok) {
-            this.loggingService.sendErrorLevelMessage('failed to get with auth token.',
-                                                      this, 
-                                                      { error: "" });
+        this.loggingService.sendErrorLevelMessage('failed to get with auth token.', this, {
+          error: '',
+        });
 
         return false;
       }
@@ -79,12 +78,11 @@ export class AuthService {
     const options = {
       headers,
     };
-      return fetch(environment.cicMetaUrl, options)
+    return fetch(environment.cicMetaUrl, options);
   }
 
   getChallenge(): Promise<any> {
-      return fetch(environment.cicMetaUrl)
-        .then(response => {
+    return fetch(environment.cicMetaUrl).then((response) => {
       if (response.status === 401) {
         const authHeader: string = response.headers.get('WWW-Authenticate');
         return hobaParseChallengeHeader(authHeader);
@@ -105,28 +103,25 @@ export class AuthService {
         this.mutableKeyStore
       );
 
-        const tokenResponse = await this.sendSignedChallenge(r)
-            .then(response => {
-                const token = response.headers.get('Token')
+      const tokenResponse = await this.sendSignedChallenge(r).then((response) => {
+        const token = response.headers.get('Token');
         if (token) {
-                    return token
+          return token;
         }
         if (response.status === 401) {
-                    let e = new HttpError("You are not authorized to use this system", response.status)
-                    throw e
+          throw new HttpError('You are not authorized to use this system', response.status);
         }
         if (!response.ok) {
-                    let e = new HttpError("Unknown error from authentication server", response.status)
-                    throw e
+          throw new HttpError('Unknown error from authentication server', response.status);
         }
-            })
+      });
 
       if (tokenResponse) {
         this.setSessionToken(tokenResponse);
         this.setState('Click button to log in');
-            return true
+        return true;
       }
-        return false
+      return false;
     }
   }
 

src/app/_services/index.ts

@@ -7,3 +7,5 @@ export * from '@app/_services/location.service';
 export * from '@app/_services/logging.service';
 export * from '@app/_services/error-dialog.service';
 export * from '@app/_services/web3.service';
+export * from '@app/_services/keystore.service';
+export * from '@app/_services/registry.service';

src/app/_services/keystore.service.spec.ts

@@ -0,0 +1,16 @@
+import { TestBed } from '@angular/core/testing';
+
+import { KeystoreService } from './keystore.service';
+
+describe('KeystoreService', () => {
+  let service: KeystoreService;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+    service = TestBed.inject(KeystoreService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+});

src/app/_services/keystore.service.ts

@@ -0,0 +1,20 @@
+import { Injectable } from '@angular/core';
+import { MutableKeyStore, MutablePgpKeyStore } from '@app/_pgp';
+
+@Injectable({
+  providedIn: 'root',
+})
+export class KeystoreService {
+  private static mutableKeyStore: MutableKeyStore;
+
+  constructor() {}
+
+  public static async getKeystore(): Promise<MutableKeyStore> {
+    if (!KeystoreService.mutableKeyStore) {
+      this.mutableKeyStore = new MutablePgpKeyStore();
+      await this.mutableKeyStore.loadKeyring();
+      return KeystoreService.mutableKeyStore;
+    }
+    return KeystoreService.mutableKeyStore;
+  }
+}

src/app/_services/token.service.ts

@@ -14,7 +14,9 @@ export class TokenService {
   tokenRegistry: TokenRegistry;
   onload: (status: boolean) => void;
   tokens: Array<Token> = [];
-  private tokensList: BehaviorSubject<Array<Token>> = new BehaviorSubject<Array<Token>>(this.tokens);
+  private tokensList: BehaviorSubject<Array<Token>> = new BehaviorSubject<Array<Token>>(
+    this.tokens
+  );
   tokensSubject: Observable<Array<Token>> = this.tokensList.asObservable();
 
   constructor(private httpClient: HttpClient) {}

src/app/_services/transaction.service.ts

@@ -18,6 +18,7 @@ import { CICRegistry } from 'cic-client';
 import { RegistryService } from '@app/_services/registry.service';
 import Web3 from 'web3';
 import { Web3Service } from '@app/_services/web3.service';
+import { KeystoreService } from '@app/_services/keystore.service';
 const vCard = require('vcard-parser');
 
 @Injectable({
@@ -170,7 +171,8 @@ export class TransactionService {
       tx.value = toValue(value);
       tx.data = data;
       const txMsg = tx.message();
-      const privateKey = this.authService.mutableKeyStore.getPrivateKey();
+      const keystore = await KeystoreService.getKeystore();
+      const privateKey = keystore.getPrivateKey();
       if (!privateKey.isDecrypted()) {
         const password = window.prompt('password');
         await privateKey.decrypt(password);

src/app/_services/user.service.ts

@@ -14,6 +14,7 @@ import { CICRegistry } from 'cic-client';
 import { AuthService } from '@app/_services/auth.service';
 import { personValidation, vcardValidation } from '@app/_helpers';
 import { add0x } from '@src/assets/js/ethtx/dist/hex';
+import { KeystoreService } from '@app/_services/keystore.service';
 const vCard = require('vcard-parser');
 
 @Injectable({
@@ -45,7 +46,7 @@ export class UserService {
   async init(): Promise<void> {
     await this.authService.init();
     await this.tokenService.init();
-    this.keystore = this.authService.mutableKeyStore;
+    this.keystore = await KeystoreService.getKeystore();
     this.signer = new PGPSigner(this.keystore);
     this.registry = await RegistryService.getRegistry();
   }

src/app/auth/auth.component.ts

@@ -22,7 +22,7 @@ export class AuthComponent implements OnInit {
     private authService: AuthService,
     private formBuilder: FormBuilder,
     private router: Router,
-    private errorDialogService: ErrorDialogService,
+    private errorDialogService: ErrorDialogService
   ) {}
 
   async ngOnInit(): Promise<void> {
@@ -49,7 +49,7 @@ export class AuthComponent implements OnInit {
 
   async login(): Promise<void> {
     try {
-        const loginResult = await this.authService.login()
+      const loginResult = await this.authService.login();
       if (loginResult) {
         this.router.navigate(['/home']);
       }