First part of resolving user inherited permissions

ref #93

src/models/entities/User.ts

@@ -3,6 +3,7 @@ import { ChildEntity, Column, JoinTable, ManyToMany, OneToMany } from "typeorm";
 import { config } from '../../config';
 import { ResponsePrincipal } from '../responses/ResponsePrincipal';
 import { ResponseUser } from '../responses/ResponseUser';
+import { Permission } from './Permission';
 import { Principal } from './Principal';
 import { UserAction } from './UserAction';
 import { UserGroup } from './UserGroup';
@@ -129,8 +130,24 @@ export class User extends Principal {
   @OneToMany(() => UserAction, action => action.user, { nullable: true })
   actions: UserAction[]
 
+  /**
+   * Resolves all permissions granted to this user through groups.
+   */
+  public get inheritedPermissions(): Permission[] {
+    let returnPermissions: Permission[] = new Array<Permission>();
+
+    if (!this.groups) { return returnPermissions; }
+    for (let group of this.groups) {
+      for (let permission of group.permissions) {
+        returnPermissions.push(permission);
+      }
+    }
+    return returnPermissions;
+  }
+
   /**
    * Resolves all permissions granted to this user through groups or directly to the string enum format.
+   * Also deduplicates the array.
    */
   public get allPermissions(): string[] {
     let returnPermissions: string[] = new Array<string>();