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/modify-users/modify-users.component.ts

@@ -0,0 +1,219 @@
+import { Component, OnInit, Input, ViewChild, AfterViewInit } from '@angular/core';
+import { MatPaginator, PageEvent } from '@angular/material/paginator';
+import { MatSort } from '@angular/material/sort';
+import { MatTableDataSource } from '@angular/material/table';
+import { PostsService } from 'app/posts.services';
+import { MatSnackBar } from '@angular/material/snack-bar';
+import { MatDialog, MatDialogRef } from '@angular/material/dialog';
+import { AddUserDialogComponent } from 'app/dialogs/add-user-dialog/add-user-dialog.component';
+import { ManageUserComponent } from '../manage-user/manage-user.component';
+import { ManageRoleComponent } from '../manage-role/manage-role.component';
+
+@Component({
+  selector: 'app-modify-users',
+  templateUrl: './modify-users.component.html',
+  styleUrls: ['./modify-users.component.scss']
+})
+export class ModifyUsersComponent implements OnInit, AfterViewInit {
+
+  displayedColumns = ['name', 'role', 'actions'];
+  dataSource = new MatTableDataSource();
+
+  deleteDialogContentSubstring = 'Are you sure you want delete user ';
+
+  @ViewChild(MatPaginator) paginator: MatPaginator;
+  @ViewChild(MatSort) sort: MatSort;
+
+  // MatPaginator Inputs
+  length = 100;
+  @Input() pageSize = 5;
+  pageSizeOptions: number[] = [5, 10, 25, 100];
+
+  // MatPaginator Output
+  pageEvent: PageEvent;
+  users: any;
+  editObject = null;
+  constructedObject = {};
+  roles = null;
+
+
+  constructor(public postsService: PostsService, public snackBar: MatSnackBar, public dialog: MatDialog,
+    private dialogRef: MatDialogRef<ModifyUsersComponent>) { }
+
+  ngOnInit() {
+    this.getArray();
+    this.getRoles();
+  }
+
+  ngAfterViewInit() {
+    this.dataSource.paginator = this.paginator;
+    this.dataSource.sort = this.sort;
+  }
+
+  /**
+   * Set the paginator and sort after the view init since this component will
+   * be able to query its view for the initialized paginator and sort.
+   */
+  afterGetData() {
+    this.dataSource.sort = this.sort;
+  }
+
+  setPageSizeOptions(setPageSizeOptionsInput: string) {
+    this.pageSizeOptions = setPageSizeOptionsInput.split(',').map(str => +str);
+  }
+
+  applyFilter(filterValue: string) {
+    filterValue = filterValue.trim(); // Remove whitespace
+    filterValue = filterValue.toLowerCase(); // Datasource defaults to lowercase matches
+    this.dataSource.filter = filterValue;
+  }
+
+  private getArray() {
+    this.postsService.getUsers().subscribe(res => {
+      this.users = res['users'];
+      this.createAndSortData();
+      this.afterGetData();
+    });
+  }
+
+  getRoles() {
+    this.postsService.getRoles().subscribe(res => {
+      this.roles = [];
+      const roles = res['roles'];
+      const role_names = Object.keys(roles);
+      for (let i = 0; i < role_names.length; i++) {
+        const role_name = role_names[i];
+        this.roles.push({
+          name: role_name,
+          permissions: roles[role_name]['permissions']
+        });
+      }
+    });
+  }
+
+  openAddUserDialog() {
+    const dialogRef = this.dialog.open(AddUserDialogComponent);
+    dialogRef.afterClosed().subscribe(user => {
+      if (user && !user.error) {
+        this.openSnackBar('Successfully added user ' + user.name);
+        this.getArray();
+      } else if (user && user.error) {
+        this.openSnackBar('Failed to add user');
+      }
+    });
+  }
+
+  finishEditing(user_uid) {
+    let has_finished = false;
+    if (this.constructedObject && this.constructedObject['name'] && this.constructedObject['role']) {
+      if (!isEmptyOrSpaces(this.constructedObject['name']) && !isEmptyOrSpaces(this.constructedObject['role'])) {
+        has_finished = true;
+        const index_of_object = this.indexOfUser(user_uid);
+        this.users[index_of_object] = this.constructedObject;
+        this.constructedObject = {};
+        this.editObject = null;
+        this.setUser(this.users[index_of_object]);
+        this.createAndSortData();
+      }
+    }
+  }
+
+  enableEditMode(user_uid) {
+    if (this.uidInUserList(user_uid) && this.indexOfUser(user_uid) > -1) {
+      const users_index = this.indexOfUser(user_uid);
+      this.editObject = this.users[users_index];
+      this.constructedObject['name'] = this.users[users_index].name;
+      this.constructedObject['uid'] = this.users[users_index].uid;
+      this.constructedObject['role'] = this.users[users_index].role;
+    }
+  }
+
+  disableEditMode() {
+    this.editObject = null;
+  }
+
+  // checks if user is in users array by name
+  uidInUserList(user_uid) {
+    for (let i = 0; i < this.users.length; i++) {
+      if (this.users[i].uid === user_uid) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  // gets index of user in users array by name
+  indexOfUser(user_uid) {
+    for (let i = 0; i < this.users.length; i++) {
+      if (this.users[i].uid === user_uid) {
+        return i;
+      }
+    }
+    return -1;
+  }
+
+  setUser(change_obj) {
+    this.postsService.changeUser(change_obj).subscribe(res => {
+      this.getArray();
+    });
+  }
+
+  manageUser(user_uid) {
+    const index_of_object = this.indexOfUser(user_uid);
+    const user_obj = this.users[index_of_object];
+    this.dialog.open(ManageUserComponent, {
+      data: {
+        user: user_obj
+      },
+      width: '65vw'
+    });
+  }
+
+  removeUser(user_uid) {
+    this.postsService.deleteUser(user_uid).subscribe(res => {
+      this.getArray();
+    }, err => {
+      this.getArray();
+    });
+  }
+
+  createAndSortData() {
+    // Sorts the data by last finished
+    this.users.sort((a, b) => b.name > a.name);
+
+    const filteredData = [];
+    for (let i = 0; i < this.users.length; i++) {
+      filteredData.push(JSON.parse(JSON.stringify(this.users[i])));
+    }
+
+    // Assign the data to the data source for the table to render
+    this.dataSource.data = filteredData;
+  }
+
+  openModifyRole(role) {
+    const dialogRef = this.dialog.open(ManageRoleComponent, {
+      data: {
+        role: role
+      }
+    });
+
+    dialogRef.afterClosed().subscribe(success => {
+      this.getRoles();
+    });
+  }
+
+  closeDialog() {
+    this.dialogRef.close();
+  }
+
+  public openSnackBar(message: string, action: string = '') {
+    this.snackBar.open(message, action, {
+      duration: 2000,
+    });
+  }
+
+}
+
+function isEmptyOrSpaces(str){
+  return str === null || str.match(/^ *$/) !== null;
+}