auth guards

src/app/services/unauth-guard.service.ts

@@ -0,0 +1,29 @@
+import { Injectable } from '@angular/core';
+import {
+    CanActivate,
+    Router,
+} from '@angular/router';
+
+import { CryptoService } from 'jslib/abstractions/crypto.service';
+import { UserService } from 'jslib/abstractions/user.service';
+
+@Injectable()
+export class UnauthGuardService implements CanActivate {
+    constructor(private cryptoService: CryptoService, private userService: UserService,
+        private router: Router) { }
+
+    async canActivate() {
+        const isAuthed = await this.userService.isAuthenticated();
+        if (isAuthed) {
+            const key = await this.cryptoService.getKey();
+            if (key == null) {
+                this.router.navigate(['lock']);
+            } else {
+                this.router.navigate(['vault']);
+            }
+            return false;
+        }
+
+        return true;
+    }
+}