Merge pull request #878 from thecodingmachine/localStorageGhost

FIX: improved the validation from localstorage for username and characterLayers

front/src/Connexion/LocalUser.ts

@@ -1,3 +1,5 @@
+import {MAX_USERNAME_LENGTH} from "../Enum/EnvironmentVariable";
+
 export interface CharacterTexture {
     id: number,
     level: number,
@@ -5,6 +7,23 @@ export interface CharacterTexture {
     rights: string
 }
 
+export const maxUserNameLength: number = MAX_USERNAME_LENGTH;
+
+export function isUserNameValid(value: string): boolean {
+    const regexp = new RegExp('^[A-Za-z]{1,'+maxUserNameLength+'}$');
+    return regexp.test(value);
+}
+
+export function areCharacterLayersValid(value: string[]): boolean {
+    if (!value.length) return false;
+    for (let i = 0; i < value.length; i++) {
+        if (/^\w+$/.exec(value[i]) === null) {
+            return false;
+        }
+    }
+    return true;
+}
+
 export class LocalUser {
     constructor(public readonly uuid:string, public readonly jwtToken: string, public readonly textures: CharacterTexture[]) {
     }

front/src/Connexion/LocalUserStore.ts

@@ -1,4 +1,4 @@
-import {LocalUser} from "./LocalUser";
+import {areCharacterLayersValid, isUserNameValid, LocalUser} from "./LocalUser";
 
 const playerNameKey =           'playerName';
 const selectedPlayerKey =       'selectedPlayer';
@@ -22,8 +22,9 @@ class LocalUserStore {
     setName(name:string): void {
         localStorage.setItem(playerNameKey, name);
     }
-    getName(): string {
+    getName(): string|null {
-        return localStorage.getItem(playerNameKey) || '';
+        const value = localStorage.getItem(playerNameKey) || '';
+        return isUserNameValid(value) ? value : null;
     }
 
     setPlayerCharacterIndex(playerCharacterIndex: number): void {
@@ -44,7 +45,8 @@ class LocalUserStore {
         localStorage.setItem(characterLayersKey, JSON.stringify(layers));
     }
     getCharacterLayers(): string[]|null {
-        return JSON.parse(localStorage.getItem(characterLayersKey) || "null");
+        const value = JSON.parse(localStorage.getItem(characterLayersKey) || "null");
+        return areCharacterLayersValid(value) ? value : null;
     }
 
     setGameQualityValue(value: number): void {

front/src/Enum/EnvironmentVariable.ts

@@ -14,6 +14,7 @@ const RESOLUTION = 2;
 const ZOOM_LEVEL = 1/*3/4*/;
 const POSITION_DELAY = 200; // Wait 200ms between sending position events
 const MAX_EXTRAPOLATION_TIME = 100; // Extrapolate a maximum of 250ms if no new movement is sent by the player
+export const MAX_USERNAME_LENGTH = parseInt(process.env.MAX_USERNAME_LENGTH || '') || 8;
 
 export {
     DEBUG_MODE,

front/src/Phaser/Game/GameManager.ts

@@ -35,7 +35,7 @@ export class GameManager {
         
         if (!this.playerName) {
             return LoginSceneName;
-        } else if (!this.characterLayers) {
+        } else if (!this.characterLayers || !this.characterLayers.length) {
             return SelectCharacterSceneName;
         } else {
             return EnableCameraSceneName;

front/src/Phaser/Login/CustomizeScene.ts

@@ -11,6 +11,7 @@ import {localUserStore} from "../../Connexion/LocalUserStore";
 import {addLoader} from "../Components/Loader";
 import {BodyResourceDescriptionInterface} from "../Entity/PlayerTextures";
 import {AbstractCharacterScene} from "./AbstractCharacterScene";
+import {areCharacterLayersValid} from "../../Connexion/LocalUser";
 
 export const CustomizeSceneName = "CustomizeScene";
 
@@ -111,6 +112,9 @@ export class CustomizeScene extends AbstractCharacterScene {
                 }
                 i++;
             }
+            if (!areCharacterLayersValid(layers)) {
+                return;
+            }
 
             gameManager.setCharacterLayers(layers);
 

front/src/Phaser/Login/LoginScene.ts

@@ -4,6 +4,7 @@ import {TextInput} from "../Components/TextInput";
 import Image = Phaser.GameObjects.Image;
 import {SelectCharacterSceneName} from "./SelectCharacterScene";
 import {ResizableScene} from "./ResizableScene";
+import {isUserNameValid, maxUserNameLength} from "../../Connexion/LocalUser";
 
 //todo: put this constants in a dedicated file
 export const LoginSceneName = "LoginScene";
@@ -37,7 +38,7 @@ export class LoginScene extends ResizableScene {
     create() {
 
         this.textField = new TextField(this, this.game.renderer.width / 2, 50, 'Enter your name:');
-        this.nameInput = new TextInput(this, this.game.renderer.width / 2, 70, 8, this.name,(text: string) => {
+        this.nameInput = new TextInput(this, this.game.renderer.width / 2, 70, maxUserNameLength, this.name,(text: string) => {
             this.name = text;
         });
 
@@ -50,10 +51,9 @@ export class LoginScene extends ResizableScene {
         this.infoTextField = new TextField(this, 10, this.game.renderer.height - 35, infoText, false);
 
         this.input.keyboard.on('keyup-ENTER', () => {
-            if (this.name === '') {
+            if (isUserNameValid(this.name)) {
-                return
-            }
                 this.login(this.name);
+            }
         });
     }
 

front/src/Phaser/Login/SelectCharacterScene.ts

@@ -10,6 +10,7 @@ import {loadAllDefaultModels, loadCustomTexture} from "../Entity/PlayerTexturesL
 import {addLoader} from "../Components/Loader";
 import {BodyResourceDescriptionInterface} from "../Entity/PlayerTextures";
 import {AbstractCharacterScene} from "./AbstractCharacterScene";
+import {areCharacterLayersValid} from "../../Connexion/LocalUser";
 
 
 //todo: put this constants in a dedicated file
@@ -142,6 +143,9 @@ export class SelectCharacterScene extends AbstractCharacterScene {
     }
 
     private nextScene(): void {
+        if (this.selectedPlayer !== null && !areCharacterLayersValid([this.selectedPlayer.texture.key])) {
+            return;
+        }
         this.scene.stop(SelectCharacterSceneName);
         if (this.selectedPlayer !== null) {
             gameManager.setCharacterLayers([this.selectedPlayer.texture.key]);

front/tests/Phaser/Connexion/LocalUserTest.ts

@@ -0,0 +1,45 @@
+import "jasmine";
+import {areCharacterLayersValid, isUserNameValid, maxUserNameLength} from "../../../src/Connexion/LocalUser";
+
+describe("isUserNameValid()", () => {
+    it("should validate name with letters", () => {
+        expect(isUserNameValid('toto')).toBe(true);
+    });
+
+    it("should not validate empty name", () => {
+        expect(isUserNameValid('')).toBe(false);
+    });
+    it("should not validate string with too many letters", () => {
+        let testString = '';
+        for (let i = 0; i < maxUserNameLength + 2; i++) {
+            testString += 'a';
+        }
+        expect(isUserNameValid(testString)).toBe(false);
+    });
+    it("should not validate spaces", () => {
+        expect(isUserNameValid(' ')).toBe(false);
+    });
+    it("should not validate numbers", () => {
+        expect(isUserNameValid('a12')).toBe(false);
+    });
+    it("should not validate special characters", () => {
+        expect(isUserNameValid('a&-')).toBe(false);
+    });
+});
+
+describe("areCharacterLayersValid()", () => {
+    it("should validate default textures array", () => {
+        expect(areCharacterLayersValid(['male1', 'male2'])).toBe(true);
+    });
+
+    it("should not validate an empty array", () => {
+        expect(areCharacterLayersValid([])).toBe(false);
+    });
+    it("should not validate space only strings", () => {
+        expect(areCharacterLayersValid([' ', 'male1'])).toBe(false);
+    });
+
+    it("should not validate empty strings", () => {
+        expect(areCharacterLayersValid(['', 'male1'])).toBe(false);
+    });
+});