wp-login.php

Revision 1398, 18.7 kB (checked in by donncha, 2 months ago)
id -> ID, fixes #690
Property svn:eol-style set to `native`

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