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/components/manage-role/manage-role.component.ts

@@ -0,0 +1,61 @@
+import { Component, OnInit, Inject } from '@angular/core';
+import { MatDialogRef, MAT_DIALOG_DATA } from '@angular/material/dialog';
+import { PostsService } from 'app/posts.services';
+
+@Component({
+  selector: 'app-manage-role',
+  templateUrl: './manage-role.component.html',
+  styleUrls: ['./manage-role.component.scss']
+})
+export class ManageRoleComponent implements OnInit {
+
+  role = null;
+  available_permissions = null;
+  permissions = null;
+
+  permissionToLabel = {
+    'filemanager': 'File manager',
+    'settings': 'Settings access',
+    'subscriptions': 'Subscriptions',
+    'sharing': 'Share files',
+    'advanced_download': 'Use advanced download mode',
+    'downloads_manager': 'Use downloads manager'
+  }
+
+  constructor(public postsService: PostsService, private dialogRef: MatDialogRef<ManageRoleComponent>,
+              @Inject(MAT_DIALOG_DATA) public data: any) {
+    if (this.data) {
+      this.role = this.data.role;
+      this.available_permissions = this.postsService.available_permissions;
+      this.parsePermissions();
+    }
+  }
+
+  ngOnInit(): void {
+  }
+
+  parsePermissions() {
+    this.permissions = {};
+    for (let i = 0; i < this.available_permissions.length; i++) {
+      const permission = this.available_permissions[i];
+      if (this.role.permissions.includes(permission)) {
+        this.permissions[permission] = 'yes';
+      } else {
+      this.permissions[permission] = 'no';
+      }
+    }
+  }
+
+  changeRolePermissions(change, permission) {
+    this.postsService.setRolePermission(this.role.name, permission, change.value).subscribe(res => {
+      if (res['success']) {
+
+      } else {
+        this.permissions[permission] = this.permissions[permission] === 'yes' ? 'no' : 'yes';
+      }
+    }, err => {
+      this.permissions[permission] = this.permissions[permission] === 'yes' ? 'no' : 'yes';
+    });
+  }
+
+}