| [ Index ] |
PHP Cross Reference of WordPress (latest release) |
[Summary view] [Print] [Text view]
1 <?php 2 /** 3 * WordPress User Page 4 * 5 * Handles authentication, registering, resetting passwords, forgot password, 6 * and other user handling. 7 * 8 * @package WordPress 9 */ 10 11 /** Make sure that the WordPress bootstrap has ran before continuing. */ 12 require( dirname(__FILE__) . '/wp-load.php' ); 13 14 // Redirect to https login if forced to use SSL 15 if ( force_ssl_admin() && !is_ssl() ) { 16 if ( 0 === strpos($_SERVER['REQUEST_URI'], 'http') ) { 17 wp_redirect(preg_replace('|^http://|', 'https://', $_SERVER['REQUEST_URI'])); 18 exit(); 19 } else { 20 wp_redirect('https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']); 21 exit(); 22 } 23 } 24 25 /** 26 * Outputs the header for the login page. 27 * 28 * @uses do_action() Calls the 'login_head' for outputting HTML in the Log In 29 * header. 30 * @uses apply_filters() Calls 'login_headerurl' for the top login link. 31 * @uses apply_filters() Calls 'login_headertitle' for the top login title. 32 * @uses apply_filters() Calls 'login_message' on the message to display in the 33 * header. 34 * @uses $error The error global, which is checked for displaying errors. 35 * 36 * @param string $title Optional. WordPress Log In Page title to display in 37 * <title/> element. 38 * @param string $message Optional. Message to display in header. 39 * @param WP_Error $wp_error Optional. WordPress Error Object 40 */ 41 function login_header($title = 'Log In', $message = '', $wp_error = '') { 42 global $error; 43 44 if ( empty($wp_error) ) 45 $wp_error = new WP_Error(); 46 ?> 47 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 48 <html xmlns="http://www.w3.org/1999/xhtml" <?php language_attributes(); ?>> 49 <head> 50 <title><?php bloginfo('name'); ?> › <?php echo $title; ?></title> 51 <meta http-equiv="Content-Type" content="<?php bloginfo('html_type'); ?>; charset=<?php bloginfo('charset'); ?>" /> 52 <?php 53 wp_admin_css( 'login', true ); 54 wp_admin_css( 'colors-fresh', true ); 55 do_action('login_head'); ?> 56 </head> 57 <body class="login"> 58 59 <div id="login"><h1><a href="<?php echo apply_filters('login_headerurl', 'http://wordpress.org/'); ?>" title="<?php echo apply_filters('login_headertitle', __('Powered by WordPress')); ?>"><?php bloginfo('name'); ?></a></h1> 60 <?php 61 if ( !empty( $message ) ) echo apply_filters('login_message', $message) . "\n"; 62 63 // Incase a plugin uses $error rather than the $errors object 64 if ( !empty( $error ) ) { 65 $wp_error->add('error', $error); 66 unset($error); 67 } 68 69 if ( $wp_error->get_error_code() ) { 70 $errors = ''; 71 $messages = ''; 72 foreach ( $wp_error->get_error_codes() as $code ) { 73 $severity = $wp_error->get_error_data($code); 74 foreach ( $wp_error->get_error_messages($code) as $error ) { 75 if ( 'message' == $severity ) 76 $messages .= ' ' . $error . "<br />\n"; 77 else 78 $errors .= ' ' . $error . "<br />\n"; 79 } 80 } 81 if ( !empty($errors) ) 82 echo '<div id="login_error">' . apply_filters('login_errors', $errors) . "</div>\n"; 83 if ( !empty($messages) ) 84 echo '<p class="message">' . apply_filters('login_messages', $messages) . "</p>\n"; 85 } 86 } // End of login_header() 87 88 /** 89 * Handles sending password retrieval email to user. 90 * 91 * @uses $wpdb WordPress Database object 92 * 93 * @return bool|WP_Error True: when finish. WP_Error on error 94 */ 95 function retrieve_password() { 96 global $wpdb; 97 98 $errors = new WP_Error(); 99 100 if ( empty( $_POST['user_login'] ) && empty( $_POST['user_email'] ) ) 101 $errors->add('empty_username', __('<strong>ERROR</strong>: Enter a username or e-mail address.')); 102 103 if ( strpos($_POST['user_login'], '@') ) { 104 $user_data = get_user_by_email(trim($_POST['user_login'])); 105 if ( empty($user_data) ) 106 $errors->add('invalid_email', __('<strong>ERROR</strong>: There is no user registered with that email address.')); 107 } else { 108 $login = trim($_POST['user_login']); 109 $user_data = get_userdatabylogin($login); 110 } 111 112 do_action('lostpassword_post'); 113 114 if ( $errors->get_error_code() ) 115 return $errors; 116 117 if ( !$user_data ) { 118 $errors->add('invalidcombo', __('<strong>ERROR</strong>: Invalid username or e-mail.')); 119 return $errors; 120 } 121 122 // redefining user_login ensures we return the right case in the email 123 $user_login = $user_data->user_login; 124 $user_email = $user_data->user_email; 125 126 do_action('retreive_password', $user_login); // Misspelled and deprecated 127 do_action('retrieve_password', $user_login); 128 129 $allow = apply_filters('allow_password_reset', true, $user_data->ID); 130 131 if ( ! $allow ) 132 return new WP_Error('no_password_reset', __('Password reset is not allowed for this user')); 133 else if ( is_wp_error($allow) ) 134 return $allow; 135 136 $key = $wpdb->get_var($wpdb->prepare("SELECT user_activation_key FROM $wpdb->users WHERE user_login = %s", $user_login)); 137 if ( empty($key) ) { 138 // Generate something random for a key... 139 $key = wp_generate_password(20, false); 140 do_action('retrieve_password_key', $user_login, $key); 141 // Now insert the new md5 key into the db 142 $wpdb->query($wpdb->prepare("UPDATE $wpdb->users SET user_activation_key = %s WHERE user_login = %s", $key, $user_login)); 143 } 144 $message = __('Someone has asked to reset the password for the following site and username.') . "\r\n\r\n"; 145 $message .= get_option('siteurl') . "\r\n\r\n"; 146 $message .= sprintf(__('Username: %s'), $user_login) . "\r\n\r\n"; 147 $message .= __('To reset your password visit the following address, otherwise just ignore this email and nothing will happen.') . "\r\n\r\n"; 148 $message .= site_url("wp-login.php?action=rp&key=$key", 'login') . "\r\n"; 149 150 if ( !wp_mail($user_email, sprintf(__('[%s] Password Reset'), get_option('blogname')), $message) ) 151 die('<p>' . __('The e-mail could not be sent.') . "<br />\n" . __('Possible reason: your host may have disabled the mail() function...') . '</p>'); 152 153 return true; 154 } 155 156 /** 157 * Handles resetting the user's password. 158 * 159 * @uses $wpdb WordPress Database object 160 * 161 * @param string $key Hash to validate sending user's password 162 * @return bool|WP_Error 163 */ 164 function reset_password($key) { 165 global $wpdb; 166 167 $key = preg_replace('/[^a-z0-9]/i', '', $key); 168 169 if ( empty( $key ) ) 170 return new WP_Error('invalid_key', __('Invalid key')); 171 172 $user = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->users WHERE user_activation_key = %s", $key)); 173 if ( empty( $user ) ) 174 return new WP_Error('invalid_key', __('Invalid key')); 175 176 do_action('password_reset', $user); 177 178 // Generate something random for a password... 179 $new_pass = wp_generate_password(); 180 wp_set_password($new_pass, $user->ID); 181 $message = sprintf(__('Username: %s'), $user->user_login) . "\r\n"; 182 $message .= sprintf(__('Password: %s'), $new_pass) . "\r\n"; 183 $message .= site_url('wp-login.php', 'login') . "\r\n"; 184 185 if ( !wp_mail($user->user_email, sprintf(__('[%s] Your new password'), get_option('blogname')), $message) ) 186 die('<p>' . __('The e-mail could not be sent.') . "<br />\n" . __('Possible reason: your host may have disabled the mail() function...') . '</p>'); 187 188 wp_password_change_notification($user); 189 190 return true; 191 } 192 193 /** 194 * Handles registering a new user. 195 * 196 * @param string $user_login User's username for logging in 197 * @param string $user_email User's email address to send password and add 198 * @return int|WP_Error Either user's ID or error on failure. 199 */ 200 function register_new_user($user_login, $user_email) { 201 $errors = new WP_Error(); 202 203 $user_login = sanitize_user( $user_login ); 204 $user_email = apply_filters( 'user_registration_email', $user_email ); 205 206 // Check the username 207 if ( $user_login == '' ) 208 $errors->add('empty_username', __('<strong>ERROR</strong>: Please enter a username.')); 209 elseif ( !validate_username( $user_login ) ) { 210 $errors->add('invalid_username', __('<strong>ERROR</strong>: This username is invalid. Please enter a valid username.')); 211 $user_login = ''; 212 } elseif ( username_exists( $user_login ) ) 213 $errors->add('username_exists', __('<strong>ERROR</strong>: This username is already registered, please choose another one.')); 214 215 // Check the e-mail address 216 if ($user_email == '') { 217 $errors->add('empty_email', __('<strong>ERROR</strong>: Please type your e-mail address.')); 218 } elseif ( !is_email( $user_email ) ) { 219 $errors->add('invalid_email', __('<strong>ERROR</strong>: The email address isn’t correct.')); 220 $user_email = ''; 221 } elseif ( email_exists( $user_email ) ) 222 $errors->add('email_exists', __('<strong>ERROR</strong>: This email is already registered, please choose another one.')); 223 224 do_action('register_post', $user_login, $user_email, $errors); 225 226 $errors = apply_filters( 'registration_errors', $errors ); 227 228 if ( $errors->get_error_code() ) 229 return $errors; 230 231 $user_pass = wp_generate_password(); 232 $user_id = wp_create_user( $user_login, $user_pass, $user_email ); 233 if ( !$user_id ) { 234 $errors->add('registerfail', sprintf(__('<strong>ERROR</strong>: Couldn’t register you... please contact the <a href="mailto:%s">webmaster</a> !'), get_option('admin_email'))); 235 return $errors; 236 } 237 238 wp_new_user_notification($user_id, $user_pass); 239 240 return $user_id; 241 } 242 243 // 244 // Main 245 // 246 247 $action = isset($_REQUEST['action']) ? $_REQUEST['action'] : ''; 248 $errors = new WP_Error(); 249 250 if ( isset($_GET['key']) ) 251 $action = 'resetpass'; 252 253 nocache_headers(); 254 255 header('Content-Type: '.get_bloginfo('html_type').'; charset='.get_bloginfo('charset')); 256 257 if ( defined('RELOCATE') ) { // Move flag is set 258 if ( isset( $_SERVER['PATH_INFO'] ) && ($_SERVER['PATH_INFO'] != $_SERVER['PHP_SELF']) ) 259 $_SERVER['PHP_SELF'] = str_replace( $_SERVER['PATH_INFO'], '', $_SERVER['PHP_SELF'] ); 260 261 $schema = ( isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) == 'on' ) ? 'https://' : 'http://'; 262 if ( dirname($schema . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF']) != get_option('siteurl') ) 263 update_option('siteurl', dirname($schema . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF']) ); 264 } 265 266 //Set a cookie now to see if they are supported by the browser. 267 setcookie(TEST_COOKIE, 'WP Cookie check', 0, COOKIEPATH, COOKIE_DOMAIN); 268 if ( SITECOOKIEPATH != COOKIEPATH ) 269 setcookie(TEST_COOKIE, 'WP Cookie check', 0, SITECOOKIEPATH, COOKIE_DOMAIN); 270 271 $http_post = ('POST' == $_SERVER['REQUEST_METHOD']); 272 switch ($action) { 273 274 case 'logout' : 275 check_admin_referer('log-out'); 276 wp_logout(); 277 278 $redirect_to = 'wp-login.php?loggedout=true'; 279 if ( isset( $_REQUEST['redirect_to'] ) ) 280 $redirect_to = $_REQUEST['redirect_to']; 281 282 wp_safe_redirect($redirect_to); 283 exit(); 284 285 break; 286 287 case 'lostpassword' : 288 case 'retrievepassword' : 289 if ( $http_post ) { 290 $errors = retrieve_password(); 291 if ( !is_wp_error($errors) ) { 292 wp_redirect('wp-login.php?checkemail=confirm'); 293 exit(); 294 } 295 } 296 297 if ( isset($_GET['error']) && 'invalidkey' == $_GET['error'] ) $errors->add('invalidkey', __('Sorry, that key does not appear to be valid.')); 298 299 do_action('lost_password'); 300 login_header(__('Lost Password'), '<p class="message">' . __('Please enter your username or e-mail address. You will receive a new password via e-mail.') . '</p>', $errors); 301 302 $user_login = isset($_POST['user_login']) ? stripslashes($_POST['user_login']) : ''; 303 304 ?> 305 306 <form name="lostpasswordform" id="lostpasswordform" action="<?php echo site_url('wp-login.php?action=lostpassword', 'login_post') ?>" method="post"> 307 <p> 308 <label><?php _e('Username or E-mail:') ?><br /> 309 <input type="text" name="user_login" id="user_login" class="input" value="<?php echo attribute_escape($user_login); ?>" size="20" tabindex="10" /></label> 310 </p> 311 <?php do_action('lostpassword_form'); ?> 312 <p class="submit"><input type="submit" name="wp-submit" id="wp-submit" value="<?php _e('Get New Password'); ?>" tabindex="100" /></p> 313 </form> 314 315 <p id="nav"> 316 <?php if (get_option('users_can_register')) : ?> 317 <a href="<?php echo site_url('wp-login.php', 'login') ?>"><?php _e('Log in') ?></a> | 318 <a href="<?php echo site_url('wp-login.php?action=register', 'login') ?>"><?php _e('Register') ?></a> 319 <?php else : ?> 320 <a href="<?php echo site_url('wp-login.php', 'login') ?>"><?php _e('Log in') ?></a> 321 <?php endif; ?> 322 </p> 323 324 </div> 325 326 <p id="backtoblog"><a href="<?php bloginfo('url'); ?>/" title="<?php _e('Are you lost?') ?>"><?php printf(__('← Back to %s'), get_bloginfo('title', 'display' )); ?></a></p> 327 328 <script type="text/javascript"> 329 try{document.getElementById('user_login').focus();}catch(e){} 330 </script> 331 </body> 332 </html> 333 <?php 334 break; 335 336 case 'resetpass' : 337 case 'rp' : 338 $errors = reset_password($_GET['key']); 339 340 if ( ! is_wp_error($errors) ) { 341 wp_redirect('wp-login.php?checkemail=newpass'); 342 exit(); 343 } 344 345 wp_redirect('wp-login.php?action=lostpassword&error=invalidkey'); 346 exit(); 347 348 break; 349 350 case 'register' : 351 if ( !get_option('users_can_register') ) { 352 wp_redirect('wp-login.php?registration=disabled'); 353 exit(); 354 } 355 356 $user_login = ''; 357 $user_email = ''; 358 if ( $http_post ) { 359 require_once ( ABSPATH . WPINC . '/registration.php'); 360 361 $user_login = $_POST['user_login']; 362 $user_email = $_POST['user_email']; 363 $errors = register_new_user($user_login, $user_email); 364 if ( !is_wp_error($errors) ) { 365 wp_redirect('wp-login.php?checkemail=registered'); 366 exit(); 367 } 368 } 369 370 login_header(__('Registration Form'), '<p class="message register">' . __('Register For This Site') . '</p>', $errors); 371 ?> 372 373 <form name="registerform" id="registerform" action="<?php echo site_url('wp-login.php?action=register', 'login_post') ?>" method="post"> 374 <p> 375 <label><?php _e('Username') ?><br /> 376 <input type="text" name="user_login" id="user_login" class="input" value="<?php echo attribute_escape(stripslashes($user_login)); ?>" size="20" tabindex="10" /></label> 377 </p> 378 <p> 379 <label><?php _e('E-mail') ?><br /> 380 <input type="text" name="user_email" id="user_email" class="input" value="<?php echo attribute_escape(stripslashes($user_email)); ?>" size="25" tabindex="20" /></label> 381 </p> 382 <?php do_action('register_form'); ?> 383 <p id="reg_passmail"><?php _e('A password will be e-mailed to you.') ?></p> 384 <p class="submit"><input type="submit" name="wp-submit" id="wp-submit" value="<?php _e('Register'); ?>" tabindex="100" /></p> 385 </form> 386 387 <p id="nav"> 388 <a href="<?php echo site_url('wp-login.php', 'login') ?>"><?php _e('Log in') ?></a> | 389 <a href="<?php echo site_url('wp-login.php?action=lostpassword', 'login') ?>" title="<?php _e('Password Lost and Found') ?>"><?php _e('Lost your password?') ?></a> 390 </p> 391 392 </div> 393 394 <p id="backtoblog"><a href="<?php bloginfo('url'); ?>/" title="<?php _e('Are you lost?') ?>"><?php printf(__('← Back to %s'), get_bloginfo('title', 'display' )); ?></a></p> 395 396 <script type="text/javascript"> 397 try{document.getElementById('user_login').focus();}catch(e){} 398 </script> 399 </body> 400 </html> 401 <?php 402 break; 403 404 case 'login' : 405 default: 406 $secure_cookie = ''; 407 408 // If the user wants ssl but the session is not ssl, force a secure cookie. 409 if ( !empty($_POST['log']) && !force_ssl_admin() ) { 410 $user_name = sanitize_user($_POST['log']); 411 if ( $user = get_userdatabylogin($user_name) ) { 412 if ( get_user_option('use_ssl', $user->ID) ) { 413 $secure_cookie = true; 414 force_ssl_admin(true); 415 } 416 } 417 } 418 419 if ( isset( $_REQUEST['redirect_to'] ) ) { 420 $redirect_to = $_REQUEST['redirect_to']; 421 // Redirect to https if user wants ssl 422 if ( $secure_cookie && false !== strpos($redirect_to, 'wp-admin') ) 423 $redirect_to = preg_replace('|^http://|', 'https://', $redirect_to); 424 } else { 425 $redirect_to = admin_url(); 426 } 427 428 if ( !$secure_cookie && is_ssl() && force_ssl_login() && !force_ssl_admin() && ( 0 !== strpos($redirect_to, 'https') ) && ( 0 === strpos($redirect_to, 'http') ) ) 429 $secure_cookie = false; 430 431 $user = wp_signon('', $secure_cookie); 432 433 $redirect_to = apply_filters('login_redirect', $redirect_to, isset( $_REQUEST['redirect_to'] ) ? $_REQUEST['redirect_to'] : '', $user); 434 435 if ( !is_wp_error($user) ) { 436 // If the user can't edit posts, send them to their profile. 437 if ( !$user->has_cap('edit_posts') && ( empty( $redirect_to ) || $redirect_to == 'wp-admin/' ) ) 438 $redirect_to = admin_url('profile.php'); 439 wp_safe_redirect($redirect_to); 440 exit(); 441 } 442 443 $errors = $user; 444 // Clear errors if loggedout is set. 445 if ( !empty($_GET['loggedout']) ) 446 $errors = new WP_Error(); 447 448 // If cookies are disabled we can't log in even with a valid user+pass 449 if ( isset($_POST['testcookie']) && empty($_COOKIE[TEST_COOKIE]) ) 450 $errors->add('test_cookie', __("<strong>ERROR</strong>: Cookies are blocked or not supported by your browser. You must <a href='http://www.google.com/cookies.html'>enable cookies</a> to use WordPress.")); 451 452 // Some parts of this script use the main login form to display a message 453 if ( isset($_GET['loggedout']) && TRUE == $_GET['loggedout'] ) $errors->add('loggedout', __('You are now logged out.'), 'message'); 454 elseif ( isset($_GET['registration']) && 'disabled' == $_GET['registration'] ) $errors->add('registerdisabled', __('User registration is currently not allowed.')); 455 elseif ( isset($_GET['checkemail']) && 'confirm' == $_GET['checkemail'] ) $errors->add('confirm', __('Check your e-mail for the confirmation link.'), 'message'); 456 elseif ( isset($_GET['checkemail']) && 'newpass' == $_GET['checkemail'] ) $errors->add('newpass', __('Check your e-mail for your new password.'), 'message'); 457 elseif ( isset($_GET['checkemail']) && 'registered' == $_GET['checkemail'] ) $errors->add('registered', __('Registration complete. Please check your e-mail.'), 'message'); 458 459 login_header(__('Log In'), '', $errors); 460 461 if ( isset($_POST['log']) ) 462 $user_login = ( 'incorrect_password' == $errors->get_error_code() || 'empty_password' == $errors->get_error_code() ) ? attribute_escape(stripslashes($_POST['log'])) : ''; 463 ?> 464 465 <?php if ( !isset($_GET['checkemail']) || !in_array( $_GET['checkemail'], array('confirm', 'newpass') ) ) : ?> 466 <form name="loginform" id="loginform" action="<?php echo site_url('wp-login.php', 'login_post') ?>" method="post"> 467 <p> 468 <label><?php _e('Username') ?><br /> 469 <input type="text" name="log" id="user_login" class="input" value="<?php echo $user_login; ?>" size="20" tabindex="10" /></label> 470 </p> 471 <p> 472 <label><?php _e('Password') ?><br /> 473 <input type="password" name="pwd" id="user_pass" class="input" value="" size="20" tabindex="20" /></label> 474 </p> 475 <?php do_action('login_form'); ?> 476 <p class="forgetmenot"><label><input name="rememberme" type="checkbox" id="rememberme" value="forever" tabindex="90" /> <?php _e('Remember Me'); ?></label></p> 477 <p class="submit"> 478 <input type="submit" name="wp-submit" id="wp-submit" value="<?php _e('Log In'); ?>" tabindex="100" /> 479 <input type="hidden" name="redirect_to" value="<?php echo attribute_escape($redirect_to); ?>" /> 480 <input type="hidden" name="testcookie" value="1" /> 481 </p> 482 </form> 483 <?php endif; ?> 484 485 <p id="nav"> 486 <?php if ( isset($_GET['checkemail']) && in_array( $_GET['checkemail'], array('confirm', 'newpass') ) ) : ?> 487 <?php elseif (get_option('users_can_register')) : ?> 488 <a href="<?php echo site_url('wp-login.php?action=register', 'login') ?>"><?php _e('Register') ?></a> | 489 <a href="<?php echo site_url('wp-login.php?action=lostpassword', 'login') ?>" title="<?php _e('Password Lost and Found') ?>"><?php _e('Lost your password?') ?></a> 490 <?php else : ?> 491 <a href="<?php echo site_url('wp-login.php?action=lostpassword', 'login') ?>" title="<?php _e('Password Lost and Found') ?>"><?php _e('Lost your password?') ?></a> 492 <?php endif; ?> 493 </p> 494 495 </div> 496 497 <p id="backtoblog"><a href="<?php bloginfo('url'); ?>/" title="<?php _e('Are you lost?') ?>"><?php printf(__('← Back to %s'),