| 1 |
<?php |
| 2 |
|
| 3 |
declare(strict_types=1); |
| 4 |
|
| 5 |
namespace Yatra\Ajax; |
| 6 |
|
| 7 |
use WP_REST_Request; |
| 8 |
use WP_REST_Response; |
| 9 |
use WP_Error; |
| 10 |
|
| 11 |
/** |
| 12 |
* Login AJAX Handler |
| 13 |
* |
| 14 |
* Handles AJAX login requests |
| 15 |
*/ |
| 16 |
class LoginAjax |
| 17 |
{ |
| 18 |
/** |
| 19 |
* Constructor - Initialize AJAX hooks |
| 20 |
*/ |
| 21 |
public function __construct() |
| 22 |
{ |
| 23 |
// Register AJAX action for logged-in users |
| 24 |
add_action('wp_ajax_yatra_ajax_login', [$this, 'handleAjaxLogin']); |
| 25 |
|
| 26 |
// Register AJAX action for non-logged-in users |
| 27 |
add_action('wp_ajax_nopriv_yatra_ajax_login', [$this, 'handleAjaxLogin']); |
| 28 |
} |
| 29 |
|
| 30 |
/** |
| 31 |
* Handle AJAX login request |
| 32 |
*/ |
| 33 |
public function handleAjaxLogin(): void |
| 34 |
{ |
| 35 |
// Rate limiting check |
| 36 |
$this->checkRateLimit(); |
| 37 |
|
| 38 |
// Verify nonce with multiple checks |
| 39 |
$nonce = $_POST['yatra_login_nonce'] ?? $_POST['nonce'] ?? ''; |
| 40 |
if (!wp_verify_nonce($nonce, 'yatra_login_action') && !wp_verify_nonce($nonce, 'yatra_login_nonce')) { |
| 41 |
$this->logSecurityEvent('nonce_verification_failed', [ |
| 42 |
'nonce' => substr($nonce, 0, 8) . '...', |
| 43 |
'ip' => $this->getClientIp() |
| 44 |
]); |
| 45 |
|
| 46 |
wp_send_json_error([ |
| 47 |
'success' => false, |
| 48 |
'code' => 'security_check_failed', |
| 49 |
'message' => __('Security check failed. Please refresh the page and try again.', 'yatra') |
| 50 |
]); |
| 51 |
} |
| 52 |
|
| 53 |
// Validate request method |
| 54 |
if ($_SERVER['REQUEST_METHOD'] !== 'POST') { |
| 55 |
wp_send_json_error([ |
| 56 |
'success' => false, |
| 57 |
'code' => 'invalid_method', |
| 58 |
'message' => __('Invalid request method.', 'yatra') |
| 59 |
]); |
| 60 |
} |
| 61 |
|
| 62 |
// Get and sanitize form data |
| 63 |
$username = sanitize_user($_POST['log'] ?? $_POST['username'] ?? ''); |
| 64 |
$password = $_POST['pwd'] ?? $_POST['password'] ?? ''; |
| 65 |
$remember = isset($_POST['rememberme']) && $_POST['rememberme'] === 'forever'; |
| 66 |
$redirect_to = $this->validateRedirectUrl($_POST['redirect_to'] ?? ''); |
| 67 |
|
| 68 |
// Enhanced input validation |
| 69 |
$validation_result = $this->validateLoginInput($username, $password); |
| 70 |
if (!$validation_result['valid']) { |
| 71 |
wp_send_json_error([ |
| 72 |
'success' => false, |
| 73 |
'code' => $validation_result['code'], |
| 74 |
'message' => $validation_result['message'] |
| 75 |
]); |
| 76 |
} |
| 77 |
|
| 78 |
// Log login attempt (security) |
| 79 |
$this->logLoginAttempt($username); |
| 80 |
|
| 81 |
// Attempt authentication with security checks |
| 82 |
$user = $this->authenticateUser($username, $password); |
| 83 |
|
| 84 |
if (is_wp_error($user)) { |
| 85 |
$this->handleAuthenticationError($user); |
| 86 |
return; // Exit early |
| 87 |
} |
| 88 |
|
| 89 |
// Additional security checks |
| 90 |
if (!$this->isUserAllowedToLogin($user)) { |
| 91 |
wp_send_json_error([ |
| 92 |
'success' => false, |
| 93 |
'code' => 'user_not_allowed', |
| 94 |
'message' => __('Your account is not allowed to login. Please contact support.', 'yatra') |
| 95 |
]); |
| 96 |
} |
| 97 |
|
| 98 |
// Successful login - set up secure session |
| 99 |
$this->setupUserSession($user, $remember); |
| 100 |
|
| 101 |
// Prepare secure success response |
| 102 |
$response_data = $this->prepareSuccessResponse($user, $redirect_to); |
| 103 |
|
| 104 |
// Send success response |
| 105 |
wp_send_json_success($response_data); |
| 106 |
} |
| 107 |
|
| 108 |
/** |
| 109 |
* Check rate limiting for login attempts |
| 110 |
*/ |
| 111 |
private function checkRateLimit(): void |
| 112 |
{ |
| 113 |
$ip = $this->getClientIp(); |
| 114 |
$enabled = (bool) apply_filters('yatra_login_rate_limit_enabled', true, $ip); |
| 115 |
if (!$enabled) { |
| 116 |
return; |
| 117 |
} |
| 118 |
|
| 119 |
// Defaults: 10 attempts per 1 minute (can be overridden via filters). |
| 120 |
$maxAttempts = (int) apply_filters('yatra_login_rate_limit_max_attempts', 10, $ip); |
| 121 |
$windowSeconds = (int) apply_filters('yatra_login_rate_limit_window_seconds', MINUTE_IN_SECONDS, $ip); |
| 122 |
$transient_key = (string) apply_filters('yatra_login_rate_limit_transient_key', 'yatra_login_limit_' . md5($ip), $ip); |
| 123 |
|
| 124 |
$attempts = (int) (get_transient($transient_key) ?: 0); |
| 125 |
|
| 126 |
// Allow N attempts per window |
| 127 |
if ($maxAttempts > 0 && $attempts >= $maxAttempts) { |
| 128 |
$this->logSecurityEvent('rate_limit_exceeded', ['ip' => $ip]); |
| 129 |
$minutes = (int) max(1, ceil(max(1, $windowSeconds) / 60)); |
| 130 |
wp_send_json_error([ |
| 131 |
'success' => false, |
| 132 |
'code' => 'rate_limit_exceeded', |
| 133 |
'message' => sprintf( |
| 134 |
/* translators: %d = minutes to wait */ |
| 135 |
__('Too many login attempts. Please try again in %d minute(s).', 'yatra'), |
| 136 |
$minutes |
| 137 |
), |
| 138 |
]); |
| 139 |
} |
| 140 |
|
| 141 |
// Increment counter |
| 142 |
$ttl = $windowSeconds > 0 ? $windowSeconds : MINUTE_IN_SECONDS; |
| 143 |
set_transient($transient_key, $attempts + 1, $ttl); |
| 144 |
} |
| 145 |
|
| 146 |
/** |
| 147 |
* Validate login input |
| 148 |
*/ |
| 149 |
private function validateLoginInput(string $username, string $password): array |
| 150 |
{ |
| 151 |
if (empty($username)) { |
| 152 |
return [ |
| 153 |
'valid' => false, |
| 154 |
'code' => 'empty_username', |
| 155 |
'message' => __('Please enter your username or email.', 'yatra') |
| 156 |
]; |
| 157 |
} |
| 158 |
|
| 159 |
if (empty($password)) { |
| 160 |
return [ |
| 161 |
'valid' => false, |
| 162 |
'code' => 'empty_password', |
| 163 |
'message' => __('Please enter your password.', 'yatra') |
| 164 |
]; |
| 165 |
} |
| 166 |
|
| 167 |
if (strlen($username) > 60) { |
| 168 |
return [ |
| 169 |
'valid' => false, |
| 170 |
'code' => 'invalid_username_length', |
| 171 |
'message' => __('Username is too long.', 'yatra') |
| 172 |
]; |
| 173 |
} |
| 174 |
|
| 175 |
if (strlen($password) > 72) { |
| 176 |
return [ |
| 177 |
'valid' => false, |
| 178 |
'code' => 'invalid_password_length', |
| 179 |
'message' => __('Password is too long.', 'yatra') |
| 180 |
]; |
| 181 |
} |
| 182 |
|
| 183 |
return ['valid' => true]; |
| 184 |
} |
| 185 |
|
| 186 |
/** |
| 187 |
* Authenticate user with enhanced security |
| 188 |
*/ |
| 189 |
private function authenticateUser(string $username, string $password) |
| 190 |
{ |
| 191 |
// Use WordPress authentication with additional security |
| 192 |
$user = wp_authenticate($username, $password); |
| 193 |
|
| 194 |
if (is_wp_error($user)) { |
| 195 |
return $user; |
| 196 |
} |
| 197 |
|
| 198 |
// Check if user is verified (if email verification is required) |
| 199 |
if ($this->isEmailVerificationRequired() && !get_user_meta($user->ID, 'yatra_email_verified', true)) { |
| 200 |
return new WP_Error('email_not_verified', |
| 201 |
__('Your email address has not been verified. Please check your email.', 'yatra') |
| 202 |
); |
| 203 |
} |
| 204 |
|
| 205 |
return $user; |
| 206 |
} |
| 207 |
|
| 208 |
/** |
| 209 |
* Handle authentication errors |
| 210 |
*/ |
| 211 |
private function handleAuthenticationError(WP_Error $error): void |
| 212 |
{ |
| 213 |
$error_code = $error->get_error_code(); |
| 214 |
$error_message = $error->get_error_message(); |
| 215 |
|
| 216 |
// Log security events |
| 217 |
$this->logSecurityEvent('authentication_failed', [ |
| 218 |
'error_code' => $error_code, |
| 219 |
'error_message' => $error_message |
| 220 |
]); |
| 221 |
|
| 222 |
// Provide user-friendly error messages |
| 223 |
if (in_array($error_code, ['invalid_username', 'incorrect_password'], true)) { |
| 224 |
$error_message = __('Invalid username or password. Please try again.', 'yatra'); |
| 225 |
} elseif ($error_code === 'email_not_verified') { |
| 226 |
// Keep the specific message from the error |
| 227 |
} else { |
| 228 |
$error_message = __('Login failed. Please try again.', 'yatra'); |
| 229 |
} |
| 230 |
|
| 231 |
wp_send_json_error([ |
| 232 |
'success' => false, |
| 233 |
'code' => $error_code, |
| 234 |
'message' => $error_message |
| 235 |
]); |
| 236 |
} |
| 237 |
|
| 238 |
/** |
| 239 |
* Setup secure user session |
| 240 |
*/ |
| 241 |
private function setupUserSession(\WP_User $user, bool $remember): void |
| 242 |
{ |
| 243 |
wp_set_current_user($user->ID); |
| 244 |
wp_set_auth_cookie($user->ID, $remember); |
| 245 |
|
| 246 |
// Update user metadata |
| 247 |
update_user_meta($user->ID, 'yatra_last_login', current_time('mysql')); |
| 248 |
update_user_meta($user->ID, 'yatra_last_login_ip', $this->getClientIp()); |
| 249 |
|
| 250 |
// Clear failed login attempts |
| 251 |
$transient_key = 'yatra_login_limit_' . md5($this->getClientIp()); |
| 252 |
delete_transient($transient_key); |
| 253 |
} |
| 254 |
|
| 255 |
/** |
| 256 |
* Prepare secure success response |
| 257 |
*/ |
| 258 |
private function prepareSuccessResponse(\WP_User $user, string $redirect_to): array |
| 259 |
{ |
| 260 |
// Apply filter for custom redirect logic |
| 261 |
$redirect_url = apply_filters('yatra_login_redirect_url', $redirect_to, $user); |
| 262 |
|
| 263 |
return [ |
| 264 |
'success' => true, |
| 265 |
'message' => __('Login successful! Redirecting...', 'yatra'), |
| 266 |
'user_id' => $user->ID, |
| 267 |
'user_login' => $user->user_login, |
| 268 |
'display_name' => $user->display_name, |
| 269 |
'redirect_url' => esc_url($redirect_url), |
| 270 |
'timestamp' => time() |
| 271 |
]; |
| 272 |
} |
| 273 |
|
| 274 |
/** |
| 275 |
* Validate redirect URL for security |
| 276 |
*/ |
| 277 |
private function validateRedirectUrl(string $redirect_url): string |
| 278 |
{ |
| 279 |
if (empty($redirect_url)) { |
| 280 |
return home_url('/' . \Yatra\Services\SettingsService::getAccountBase()); |
| 281 |
} |
| 282 |
|
| 283 |
$redirect_url = sanitize_url($redirect_url); |
| 284 |
|
| 285 |
// Validate URL is safe |
| 286 |
if (!wp_http_validate_url($redirect_url)) { |
| 287 |
return home_url('/' . \Yatra\Services\SettingsService::getAccountBase()); |
| 288 |
} |
| 289 |
|
| 290 |
// Only allow redirects to same host |
| 291 |
$redirect_host = parse_url($redirect_url, PHP_URL_HOST); |
| 292 |
$site_host = parse_url(home_url(), PHP_URL_HOST); |
| 293 |
|
| 294 |
if ($redirect_host !== $site_host) { |
| 295 |
return home_url('/' . \Yatra\Services\SettingsService::getAccountBase()); |
| 296 |
} |
| 297 |
|
| 298 |
return $redirect_url; |
| 299 |
} |
| 300 |
|
| 301 |
/** |
| 302 |
* Check if user is allowed to login |
| 303 |
*/ |
| 304 |
private function isUserAllowedToLogin(\WP_User $user): bool |
| 305 |
{ |
| 306 |
// Check if user is active |
| 307 |
if (in_array('inactive', (array) $user->roles, true)) { |
| 308 |
return false; |
| 309 |
} |
| 310 |
|
| 311 |
// Apply additional checks via filter |
| 312 |
return apply_filters('yatra_user_allowed_to_login', true, $user); |
| 313 |
} |
| 314 |
|
| 315 |
/** |
| 316 |
* Check if email verification is required |
| 317 |
*/ |
| 318 |
private function isEmailVerificationRequired(): bool |
| 319 |
{ |
| 320 |
return apply_filters('yatra_require_email_verification', false); |
| 321 |
} |
| 322 |
|
| 323 |
/** |
| 324 |
* Get client IP address |
| 325 |
*/ |
| 326 |
private function getClientIp(): string |
| 327 |
{ |
| 328 |
$ip_keys = ['HTTP_X_FORWARDED_FOR', 'HTTP_X_REAL_IP', 'HTTP_CLIENT_IP', 'REMOTE_ADDR']; |
| 329 |
|
| 330 |
foreach ($ip_keys as $key) { |
| 331 |
if (!empty($_SERVER[$key])) { |
| 332 |
$ips = explode(',', $_SERVER[$key]); |
| 333 |
$ip = trim($ips[0]); |
| 334 |
if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE)) { |
| 335 |
return $ip; |
| 336 |
} |
| 337 |
} |
| 338 |
} |
| 339 |
|
| 340 |
return $_SERVER['REMOTE_ADDR'] ?? '0.0.0.0'; |
| 341 |
} |
| 342 |
|
| 343 |
/** |
| 344 |
* Log security events |
| 345 |
*/ |
| 346 |
private function logSecurityEvent(string $event, array $data = []): void |
| 347 |
{ |
| 348 |
if (!defined('WP_DEBUG') || !WP_DEBUG) { |
| 349 |
return; |
| 350 |
} |
| 351 |
|
| 352 |
$log_data = array_merge([ |
| 353 |
'event' => $event, |
| 354 |
'timestamp' => current_time('mysql'), |
| 355 |
'ip' => $this->getClientIp(), |
| 356 |
'user_agent' => $_SERVER['HTTP_USER_AGENT'] ?? '' |
| 357 |
], $data); |
| 358 |
|
| 359 |
} |
| 360 |
|
| 361 |
/** |
| 362 |
* Log login attempts |
| 363 |
*/ |
| 364 |
private function logLoginAttempt(string $username): void |
| 365 |
{ |
| 366 |
if (!defined('WP_DEBUG') || !WP_DEBUG) { |
| 367 |
return; |
| 368 |
} |
| 369 |
|
| 370 |
} |
| 371 |
} |
| 372 |
|
