| class Authentication { |
| constructor() { |
| this.tokenKey = 'authToken'; |
| this.userKey = 'currentUser'; |
| this.usersKey = 'appUsers'; |
| } |
|
|
| generateToken(userId, username, role = 'student') { |
| |
| const tokenData = { |
| userId: userId, |
| username: username, |
| role: role, |
| timestamp: Date.now(), |
| exp: Date.now() + (7 * 24 * 60 * 60 * 1000) |
| }; |
| return btoa(JSON.stringify(tokenData)); |
| } |
|
|
| verifyToken(token) { |
| try { |
| const tokenData = JSON.parse(atob(token)); |
| if (tokenData.exp > Date.now()) { |
| return tokenData; |
| } else { |
| this.logout(); |
| return null; |
| } |
| } catch (error) { |
| console.error('Token verification failed:', error); |
| return null; |
| } |
| } |
| |
| hashPassword(password) { |
| |
| let hash = 0; |
| for (let i = 0; i < password.length; i++) { |
| const char = password.charCodeAt(i); |
| hash = ((hash << 5) - hash) + char; |
| hash = Math.abs(hash & hash); |
| } |
| return hash.toString(); |
| } |
|
|
| setToken(token) { |
| localStorage.setItem(this.tokenKey, token); |
| } |
|
|
| getToken() { |
| return localStorage.getItem(this.tokenKey); |
| } |
|
|
| setCurrentUser(user) { |
| localStorage.setItem(this.userKey, JSON.stringify(user)); |
| } |
|
|
| getCurrentUser() { |
| const userStr = localStorage.getItem(this.userKey); |
| return userStr ? JSON.parse(userStr) : null; |
| } |
|
|
| isAuthenticated() { |
| const token = this.getToken(); |
| if (!token) return false; |
|
|
| const tokenData = this.verifyToken(token); |
| return tokenData !== null; |
| } |
|
|
| logout() { |
| localStorage.removeItem(this.tokenKey); |
| localStorage.removeItem(this.userKey); |
| } |
|
|
| |
| initializeDefaultUsers() { |
| const existingUsers = this.getUsers(); |
| if (Object.keys(existingUsers).length === 0) { |
| const defaultUsers = { |
| '1': { |
| userId: '1', |
| username: 'student', |
| email: 'student@example.com', |
| password: this.hashPassword('password123'), |
| role: 'student', |
| createdAt: new Date().toISOString(), |
| profile: { |
| fullName: 'دانشجوی نمونه', |
| bio: 'علاقمند به توسعه وب' |
| }, |
| progress: { |
| totalScore: 0, |
| completedLessons: [], |
| currentLesson: 1 |
| }, |
| isActive: true |
| }, |
| '2': { |
| userId: '2', |
| username: 'admin', |
| email: 'admin@example.com', |
| password: this.hashPassword('admin123'), |
| role: 'admin', |
| createdAt: new Date().toISOString(), |
| profile: { |
| fullName: 'مدیر سیستم', |
| bio: 'مدیر پلتفرم آموزشی' |
| }, |
| progress: { |
| totalScore: 0, |
| completedLessons: [], |
| currentLesson: 1 |
| }, |
| isActive: true |
| } |
| }; |
| this.saveUsers(defaultUsers); |
| } |
| } |
|
|
| getUsers() { |
| const usersStr = localStorage.getItem(this.usersKey); |
| return usersStr ? JSON.parse(usersStr) : {}; |
| } |
|
|
| saveUsers(users) { |
| localStorage.setItem(this.usersKey, JSON.stringify(users)); |
| } |
|
|
| registerUser(username, email, password, role = 'student', profile = {}) { |
| const users = this.getUsers(); |
| |
| |
| for (const userId in users) { |
| if (users[userId].username === username) { |
| return { success: false, message: 'نام کاربری already exists' }; |
| } |
| if (users[userId].email === email) { |
| return { success: false, message: 'ایمیل already exists' }; |
| } |
| } |
|
|
| |
| const newUserId = Object.keys(users).length + 1; |
| const newUser = { |
| userId: newUserId.toString(), |
| username: username, |
| email: email, |
| password: this.hashPassword(password), |
| role: role, |
| createdAt: new Date().toISOString(), |
| profile: { |
| fullName: profile.fullName || '', |
| bio: profile.bio || '', |
| avatar: profile.avatar || '' |
| }, |
| progress: { |
| totalScore: 0, |
| completedLessons: [], |
| currentLesson: 1, |
| achievements: [] |
| }, |
| isActive: true |
| }; |
|
|
| users[newUserId] = newUser; |
| this.saveUsers(users); |
|
|
| return { success: true, user: newUser }; |
| } |
|
|
| loginUser(username, password) { |
| const users = this.getUsers(); |
| const hashedPassword = this.hashPassword(password); |
| console.log('🔐 Login attempt:', { username, hashedPassword }); |
|
|
| for (const userId in users) { |
| const user = users[userId]; |
| console.log('📋 User in DB:', { |
| username: user.username, |
| password: user.password, |
| isActive: user.isActive |
| }); |
| |
| if (user.username === username && user.password === hashedPassword && user.isActive) { |
| |
| const token = this.generateToken(user.userId, user.username, user.role); |
| this.setToken(token); |
| this.setCurrentUser(user); |
|
|
| |
| user.lastLogin = new Date().toISOString(); |
| this.saveUsers(users); |
|
|
| |
| document.dispatchEvent(new CustomEvent('authStateChanged')); |
|
|
| return { success: true, user: user, token: token }; |
| } |
| } |
|
|
| return { success: false, message: 'نام کاربری یا رمز عبور اشتباه است' }; |
| } |
|
|
| updateUserProgress(userId, score = 0, completedLesson = null) { |
| const users = this.getUsers(); |
| if (users[userId]) { |
| const user = users[userId]; |
| |
| if (score > 0) { |
| user.progress.totalScore = (user.progress.totalScore || 0) + score; |
| } |
| |
| if (completedLesson && !user.progress.completedLessons.includes(completedLesson)) { |
| user.progress.completedLessons.push(completedLesson); |
| } |
| |
| this.saveUsers(users); |
| return { success: true, progress: user.progress }; |
| } |
| return { success: false, message: 'User not found' }; |
| } |
| } |
|
|
| |
| const authManager = new Authentication(); |
