Added roles and permissions system, as well as the ability to modify users and their roles

Downloads manager now uses device fingerprint as identifier rather than a randomly generated sessionID

src/app/dialogs/add-user-dialog/add-user-dialog.component.ts

@@ -0,0 +1,32 @@
+import { Component, OnInit } from '@angular/core';
+import { PostsService } from 'app/posts.services';
+import { MatDialogRef } from '@angular/material/dialog';
+
+@Component({
+  selector: 'app-add-user-dialog',
+  templateUrl: './add-user-dialog.component.html',
+  styleUrls: ['./add-user-dialog.component.scss']
+})
+export class AddUserDialogComponent implements OnInit {
+
+  usernameInput = '';
+  passwordInput = '';
+
+  constructor(private postsService: PostsService, public dialogRef: MatDialogRef<AddUserDialogComponent>) { }
+
+  ngOnInit(): void {
+  }
+
+  createUser() {
+    this.postsService.register(this.usernameInput, this.passwordInput).subscribe(res => {
+      if (res['user']) {
+        this.dialogRef.close(res['user']);
+      } else {
+        this.dialogRef.close({error: 'Unknown error'});
+      }
+    }, err => {
+      this.dialogRef.close({error: err});
+    });
+  }
+
+}