Make WordPress Core

Ticket #2055: pluggable.php

File pluggable.php, 19.5 KB (added by sukram, 19 years ago)

Uploaded the wrong data, now it works, sorry

Line 
1<?php
2
3 /* These functions can be replaced via plugins. They are loaded after
4 plugins are loaded. */
5
6if ( !function_exists('set_current_user') ) :
7function set_current_user($id, $name = '') {
8 return wp_set_current_user($id, $name);
9}
10endif;
11
12if ( !function_exists('wp_set_current_user') ) :
13function wp_set_current_user($id, $name = '') {
14 global $current_user;
15
16 if ( isset($current_user) && ($id == $current_user->ID) )
17 return $current_user;
18
19 $current_user = new WP_User($id, $name);
20
21 setup_userdata($current_user->ID);
22
23 do_action('set_current_user');
24
25 return $current_user;
26}
27endif;
28
29if ( !function_exists('wp_get_current_user') ) :
30function wp_get_current_user() {
31 global $current_user;
32
33 get_currentuserinfo();
34
35 return $current_user;
36}
37endif;
38
39if ( !function_exists('get_currentuserinfo') ) :
40function get_currentuserinfo() {
41 global $current_user;
42
43 if ( defined('XMLRPC_REQUEST') && XMLRPC_REQUEST )
44 return false;
45
46 if ( ! empty($current_user) )
47 return;
48
49 if ( empty($_COOKIE[USER_COOKIE]) || empty($_COOKIE[PASS_COOKIE]) ||
50 !wp_login($_COOKIE[USER_COOKIE], $_COOKIE[PASS_COOKIE], true) ) {
51 wp_set_current_user(0);
52 return false;
53 }
54
55 $user_login = $_COOKIE[USER_COOKIE];
56 wp_set_current_user(0, $user_login);
57}
58endif;
59
60if ( !function_exists('get_userdata') ) :
61function get_userdata( $user_id ) {
62 global $wpdb;
63 $user_id = (int) $user_id;
64 if ( $user_id == 0 )
65 return false;
66
67 $user = wp_cache_get($user_id, 'users');
68
69 if ( $user )
70 return $user;
71
72 if ( !$user = $wpdb->get_row("SELECT * FROM $wpdb->users WHERE ID = '$user_id' LIMIT 1") )
73 return false;
74
75 $wpdb->hide_errors();
76 $metavalues = $wpdb->get_results("SELECT meta_key, meta_value FROM $wpdb->usermeta WHERE user_id = '$user_id'");
77 $wpdb->show_errors();
78
79 if ($metavalues) {
80 foreach ( $metavalues as $meta ) {
81 $value = maybe_unserialize($meta->meta_value);
82 $user->{$meta->meta_key} = $value;
83
84 // We need to set user_level from meta, not row
85 if ( $wpdb->prefix . 'user_level' == $meta->meta_key )
86 $user->user_level = $meta->meta_value;
87 } // end foreach
88 } //end if
89
90 // For backwards compat.
91 if ( isset($user->first_name) )
92 $user->user_firstname = $user->first_name;
93 if ( isset($user->last_name) )
94 $user->user_lastname = $user->last_name;
95 if ( isset($user->description) )
96 $user->user_description = $user->description;
97
98 wp_cache_add($user_id, $user, 'users');
99 wp_cache_add($user->user_login, $user_id, 'userlogins');
100 return $user;
101}
102endif;
103
104if ( !function_exists('update_user_cache') ) :
105function update_user_cache() {
106 return true;
107}
108endif;
109
110if ( !function_exists('get_userdatabylogin') ) :
111function get_userdatabylogin($user_login) {
112 global $wpdb;
113 $user_login = sanitize_user( $user_login );
114
115 if ( empty( $user_login ) )
116 return false;
117
118 $user_id = wp_cache_get($user_login, 'userlogins');
119 $userdata = wp_cache_get($user_id, 'users');
120
121 if ( $userdata )
122 return $userdata;
123
124 $user_login = $wpdb->escape($user_login);
125
126 if ( !$user = $wpdb->get_row("SELECT * FROM $wpdb->users WHERE user_login = '$user_login'") )
127 return false;
128
129 $wpdb->hide_errors();
130 $metavalues = $wpdb->get_results("SELECT meta_key, meta_value FROM $wpdb->usermeta WHERE user_id = '$user->ID'");
131 $wpdb->show_errors();
132
133 if ($metavalues) {
134 foreach ( $metavalues as $meta ) {
135 $value = maybe_unserialize($meta->meta_value);
136 $user->{$meta->meta_key} = $value;
137
138 // We need to set user_level from meta, not row
139 if ( $wpdb->prefix . 'user_level' == $meta->meta_key )
140 $user->user_level = $meta->meta_value;
141 }
142 }
143
144 // For backwards compat.
145 if ( isset($user->first_name) )
146 $user->user_firstname = $user->first_name;
147 if ( isset($user->last_name) )
148 $user->user_lastname = $user->last_name;
149 if ( isset($user->description) )
150 $user->user_description = $user->description;
151
152 wp_cache_add($user->ID, $user, 'users');
153 wp_cache_add($user->user_login, $user->ID, 'userlogins');
154 return $user;
155
156}
157endif;
158
159if ( !function_exists( 'wp_mail' ) ) :
160function wp_mail($to, $subject, $message, $headers = '') {
161 global $phpmailer;
162
163 if ( !is_object( $phpmailer ) ) {
164 require_once(ABSPATH . WPINC . '/class-phpmailer.php');
165 require_once(ABSPATH . WPINC . '/class-smtp.php');
166 $phpmailer = new PHPMailer();
167 }
168
169 $mail = compact('to', 'subject', 'message', 'headers');
170 $mail = apply_filters('wp_mail', $mail);
171 extract($mail, EXTR_SKIP);
172
173 if ( $headers == '' ) {
174 $headers = "MIME-Version: 1.0\n" .
175 "From: " . apply_filters('wp_mail_from', "wordpress@" . preg_replace('#^www\.#', '', strtolower($_SERVER['SERVER_NAME']))) . "\n" .
176 "Content-Type: text/plain; charset=\"" . get_option('blog_charset') . "\"\n";
177 }
178
179 $phpmailer->ClearAddresses();
180 $phpmailer->ClearCCs();
181 $phpmailer->ClearBCCs();
182 $phpmailer->ClearReplyTos();
183 $phpmailer->ClearAllRecipients();
184 $phpmailer->ClearCustomHeaders();
185
186 $phpmailer->FromName = "WordPress";
187 $phpmailer->AddAddress("$to", "");
188 $phpmailer->Subject = $subject;
189 $phpmailer->Body = $message;
190 $phpmailer->IsHTML(false);
191 $phpmailer->IsMail(); // set mailer to use php mail()
192
193 do_action_ref_array('phpmailer_init', array(&$phpmailer));
194
195 $mailheaders = (array) explode( "\n", $headers );
196 foreach ( $mailheaders as $line ) {
197 $header = explode( ":", $line );
198 switch ( trim( $header[0] ) ) {
199 case "From":
200 $from = trim( str_replace( '"', '', $header[1] ) );
201 if ( strpos( $from, '<' ) ) {
202 $phpmailer->FromName = str_replace( '"', '', substr( $header[1], 0, strpos( $header[1], '<' ) - 1 ) );
203 $from = trim( substr( $from, strpos( $from, '<' ) + 1 ) );
204 $from = str_replace( '>', '', $from );
205 } else {
206 $phpmailer->FromName = $from;
207 }
208 $phpmailer->From = trim( $from );
209 break;
210 default:
211 if ( $line != '' && $header[0] != 'MIME-Version' && $header[0] != 'Content-Type' )
212 $phpmailer->AddCustomHeader( $line );
213 break;
214 }
215 }
216
217 $result = @$phpmailer->Send();
218
219 return $result;
220}
221endif;
222
223if ( !function_exists('wp_login') ) :
224function wp_login($username, $password, $already_md5 = false) {
225 global $wpdb, $error;
226
227 $username = sanitize_user($username);
228
229 if ( '' == $username )
230 return false;
231
232 if ( '' == $password ) {
233 $error = __('<strong>ERROR</strong>: The password field is empty.');
234 return false;
235 }
236
237 $login = get_userdatabylogin($username);
238 //$login = $wpdb->get_row("SELECT ID, user_login, user_pass FROM $wpdb->users WHERE user_login = '$username'");
239
240 if (!$login) {
241 $error = __('<strong>ERROR</strong>: Invalid username.');
242 return false;
243 } else {
244 // If the password is already_md5, it has been double hashed.
245 // Otherwise, it is plain text.
246 if ( ($already_md5 && md5($login->user_pass) == $password) || ($login->user_login == $username && $login->user_pass == md5($password)) ) {
247 return true;
248 } else {
249 $error = __('<strong>ERROR</strong>: Incorrect password.');
250 $pwd = '';
251 return false;
252 }
253 }
254}
255endif;
256
257if ( !function_exists('is_user_logged_in') ) :
258function is_user_logged_in() {
259 $user = wp_get_current_user();
260
261 if ( $user->id == 0 )
262 return false;
263
264 return true;
265}
266endif;
267
268if ( !function_exists('auth_redirect') ) :
269function auth_redirect() {
270 // Checks if a user is logged in, if not redirects them to the login page
271 if ( (!empty($_COOKIE[USER_COOKIE]) &&
272 !wp_login($_COOKIE[USER_COOKIE], $_COOKIE[PASS_COOKIE], true)) ||
273 (empty($_COOKIE[USER_COOKIE])) ) {
274 nocache_headers();
275
276 wp_redirect(get_option('siteurl') . '/wp-login.php?redirect_to=' . urlencode($_SERVER['REQUEST_URI']));
277 exit();
278 }
279}
280endif;
281
282if ( !function_exists('check_admin_referer') ) :
283function check_admin_referer($action = -1) {
284 $adminurl = strtolower(get_option('siteurl')).'/wp-admin';
285 $referer = strtolower(wp_get_referer());
286 if ( !wp_verify_nonce($_REQUEST['_wpnonce'], $action) &&
287 !(-1 == $action && strpos($referer, $adminurl) !== false)) {
288 wp_nonce_ays($action);
289 die();
290 }
291 do_action('check_admin_referer', $action);
292}endif;
293
294if ( !function_exists('check_ajax_referer') ) :
295function check_ajax_referer() {
296 $cookie = explode('; ', urldecode(empty($_POST['cookie']) ? $_GET['cookie'] : $_POST['cookie'])); // AJAX scripts must pass cookie=document.cookie
297 foreach ( $cookie as $tasty ) {
298 if ( false !== strpos($tasty, USER_COOKIE) )
299 $user = substr(strstr($tasty, '='), 1);
300 if ( false !== strpos($tasty, PASS_COOKIE) )
301 $pass = substr(strstr($tasty, '='), 1);
302 }
303 if ( !wp_login( $user, $pass, true ) )
304 die('-1');
305 do_action('check_ajax_referer');
306}
307endif;
308
309// Cookie safe redirect. Works around IIS Set-Cookie bug.
310// http://support.microsoft.com/kb/q176113/
311if ( !function_exists('wp_redirect') ) :
312function wp_redirect($location, $status = 302) {
313 global $is_IIS;
314
315 $location = apply_filters('wp_redirect', $location, $status);
316
317 if ( !$location ) // allows the wp_redirect filter to cancel a redirect
318 return false;
319
320 $location = preg_replace('|[^a-z0-9-~+_.?#=&;,/:%]|i', '', $location);
321 $location = wp_kses_no_null($location);
322
323 // remove %0d and %0a from location
324 $strip = array('%0d', '%0a');
325 $found = true;
326 while($found) {
327 $found = false;
328 foreach($strip as $val) {
329 while(strpos($location, $val) !== false) {
330 $found = true;
331 $location = str_replace($val, '', $location);
332 }
333 }
334 }
335
336 if ( $is_IIS ) {
337 header("Refresh: 0;url=$location");
338 } else {
339 if ( php_sapi_name() != 'cgi-fcgi' )
340 status_header($status); // This causes problems on IIS and some FastCGI setups
341 header("Location: $location");
342 }
343}
344endif;
345
346if ( !function_exists('wp_get_cookie_login') ):
347function wp_get_cookie_login() {
348 if ( empty($_COOKIE[USER_COOKIE]) || empty($_COOKIE[PASS_COOKIE]) )
349 return false;
350
351 return array('login' => $_COOKIE[USER_COOKIE], 'password' => $_COOKIE[PASS_COOKIE]);
352}
353
354endif;
355
356if ( !function_exists('wp_setcookie') ) :
357function wp_setcookie($username, $password, $already_md5 = false, $home = '', $siteurl = '', $remember = false) {
358 if ( !$already_md5 )
359 $password = md5( md5($password) ); // Double hash the password in the cookie.
360
361 if ( empty($home) )
362 $cookiepath = COOKIEPATH;
363 else
364 $cookiepath = preg_replace('|https?://[^/]+|i', '', $home . '/' );
365
366 if ( empty($siteurl) ) {
367 $sitecookiepath = SITECOOKIEPATH;
368 $cookiehash = COOKIEHASH;
369 } else {
370 $sitecookiepath = preg_replace('|https?://[^/]+|i', '', $siteurl . '/' );
371 $cookiehash = md5($siteurl);
372 }
373
374 if ( $remember )
375 $expire = time() + 31536000;
376 else
377 $expire = 0;
378
379 setcookie(USER_COOKIE, $username, $expire, $sitecookiepath, COOKIE_DOMAIN);
380 setcookie(PASS_COOKIE, $password, $expire, $sitecookiepath, COOKIE_DOMAIN);
381
382 /*
383 if ( $cookiepath != $sitecookiepath ) {
384 setcookie(USER_COOKIE, $username, $expire, $cookiepath, COOKIE_DOMAIN);
385 setcookie(PASS_COOKIE, $password, $expire, $cookiepath, COOKIE_DOMAIN);
386 }
387 */
388}
389endif;
390
391if ( !function_exists('wp_clearcookie') ) :
392function wp_clearcookie() {
393 setcookie(USER_COOKIE, ' ', time() - 31536000, COOKIEPATH, COOKIE_DOMAIN);
394 setcookie(PASS_COOKIE, ' ', time() - 31536000, COOKIEPATH, COOKIE_DOMAIN);
395 setcookie(USER_COOKIE, ' ', time() - 31536000, SITECOOKIEPATH, COOKIE_DOMAIN);
396 setcookie(PASS_COOKIE, ' ', time() - 31536000, SITECOOKIEPATH, COOKIE_DOMAIN);
397}
398endif;
399
400if ( ! function_exists('wp_notify_postauthor') ) :
401function wp_notify_postauthor($comment_id, $comment_type='') {
402 global $wpdb;
403
404 $comment = get_comment($comment_id);
405 $post = get_post($comment->comment_post_ID);
406 $user = get_userdata( $post->post_author );
407
408 if ('' == $user->user_email) return false; // If there's no email to send the comment to
409
410 $comment_author_domain = @gethostbyaddr($comment->comment_author_IP);
411
412 $blogname = get_option('blogname');
413
414 if ( empty( $comment_type ) ) $comment_type = 'comment';
415
416 if ('comment' == $comment_type) {
417 $notify_message = sprintf( __('New comment on your post #%1$s "%2$s"'), $comment->comment_post_ID, $post->post_title ) . "\r\n";
418 $notify_message .= sprintf( __('Author : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
419 $notify_message .= sprintf( __('E-mail : %s'), $comment->comment_author_email ) . "\r\n";
420 $notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n";
421 $notify_message .= sprintf( __('Whois : http://ws.arin.net/cgi-bin/whois.pl?queryinput=%s'), $comment->comment_author_IP ) . "\r\n";
422 $notify_message .= __('Comment: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";
423 $notify_message .= __('You can see all comments on this post here: ') . "\r\n";
424 $subject = sprintf( __('[%1$s] Comment: "%2$s"'), $blogname, $post->post_title );
425 } elseif ('trackback' == $comment_type) {
426 $notify_message = sprintf( __('New trackback on your post #%1$s "%2$s"'), $comment->comment_post_ID, $post->post_title ) . "\r\n";
427 $notify_message .= sprintf( __('Website: %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
428 $notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n";
429 $notify_message .= __('Excerpt: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";
430 $notify_message .= __('You can see all trackbacks on this post here: ') . "\r\n";
431 $subject = sprintf( __('[%1$s] Trackback: "%2$s"'), $blogname, $post->post_title );
432 } elseif ('pingback' == $comment_type) {
433 $notify_message = sprintf( __('New pingback on your post #%1$s "%2$s"'), $comment->comment_post_ID, $post->post_title ) . "\r\n";
434 $notify_message .= sprintf( __('Website: %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
435 $notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n";
436 $notify_message .= __('Excerpt: ') . "\r\n" . sprintf('[...] %s [...]', $comment->comment_content ) . "\r\n\r\n";
437 $notify_message .= __('You can see all pingbacks on this post here: ') . "\r\n";
438 $subject = sprintf( __('[%1$s] Pingback: "%2$s"'), $blogname, $post->post_title );
439 }
440 $notify_message .= get_permalink($comment->comment_post_ID) . "#comments\r\n\r\n";
441 $notify_message .= sprintf( __('Delete it: %s'), get_option('siteurl')."/wp-admin/comment.php?action=cdc&c=$comment_id" ) . "\r\n";
442 $notify_message .= sprintf( __('Spam it: %s'), get_option('siteurl')."/wp-admin/comment.php?action=cdc&dt=spam&c=$comment_id" ) . "\r\n";
443
444 $wp_email = 'wordpress@' . preg_replace('#^www\.#', '', strtolower($_SERVER['SERVER_NAME']));
445
446 if ( '' == $comment->comment_author ) {
447 $from = "From: \"$blogname\" <$wp_email>";
448 if ( '' != $comment->comment_author_email )
449 $reply_to = "Reply-To: $comment->comment_author_email";
450 } else {
451 $from = "From: \"$comment->comment_author\" <$wp_email>";
452 if ( '' != $comment->comment_author_email )
453 $reply_to = "Reply-To: \"$comment->comment_author_email\" <$comment->comment_author_email>";
454 }
455
456 $message_headers = "MIME-Version: 1.0\n"
457 . "$from\n"
458 . "Content-Type: text/plain; charset=\"" . get_option('blog_charset') . "\"\n";
459
460 if ( isset($reply_to) )
461 $message_headers .= $reply_to . "\n";
462
463 $notify_message = apply_filters('comment_notification_text', $notify_message, $comment_id);
464 $subject = apply_filters('comment_notification_subject', $subject, $comment_id);
465 $message_headers = apply_filters('comment_notification_headers', $message_headers, $comment_id);
466
467 @wp_mail($user->user_email, $subject, $notify_message, $message_headers);
468
469 return true;
470}
471endif;
472
473/* wp_notify_moderator
474 notifies the moderator of the blog (usually the admin)
475 about a new comment that waits for approval
476 always returns true
477 */
478if ( !function_exists('wp_notify_moderator') ) :
479function wp_notify_moderator($comment_id) {
480 global $wpdb;
481
482 if( get_option( "moderation_notify" ) == 0 )
483 return true;
484
485 $comment = $wpdb->get_row("SELECT * FROM $wpdb->comments WHERE comment_ID='$comment_id' LIMIT 1");
486 $post = $wpdb->get_row("SELECT * FROM $wpdb->posts WHERE ID='$comment->comment_post_ID' LIMIT 1");
487
488 $comment_author_domain = @gethostbyaddr($comment->comment_author_IP);
489 $comments_waiting = $wpdb->get_var("SELECT count(comment_ID) FROM $wpdb->comments WHERE comment_approved = '0'");
490
491 $notify_message = sprintf( __('A new comment on the post #%1$s "%2$s" is waiting for your approval'), $post->ID, $post->post_title ) . "\r\n";
492 $notify_message .= get_permalink($comment->comment_post_ID) . "\r\n\r\n";
493 $notify_message .= sprintf( __('Author : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
494 $notify_message .= sprintf( __('E-mail : %s'), $comment->comment_author_email ) . "\r\n";
495 $notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n";
496 $notify_message .= sprintf( __('Whois : http://ws.arin.net/cgi-bin/whois.pl?queryinput=%s'), $comment->comment_author_IP ) . "\r\n";
497 $notify_message .= __('Comment: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";
498 $notify_message .= sprintf( __('Approve it: %s'), get_option('siteurl')."/wp-admin/comment.php?action=mac&c=$comment_id" ) . "\r\n";
499 $notify_message .= sprintf( __('Delete it: %s'), get_option('siteurl')."/wp-admin/comment.php?action=cdc&c=$comment_id" ) . "\r\n";
500 $notify_message .= sprintf( __('Spam it: %s'), get_option('siteurl')."/wp-admin/comment.php?action=cdc&dt=spam&c=$comment_id" ) . "\r\n";
501 $notify_message .= sprintf( __('Currently %s comments are waiting for approval. Please visit the moderation panel:'), $comments_waiting ) . "\r\n";
502 $notify_message .= get_option('siteurl') . "/wp-admin/moderation.php\r\n";
503
504 $subject = sprintf( __('[%1$s] Please moderate: "%2$s"'), get_option('blogname'), $post->post_title );
505 $admin_email = get_option('admin_email');
506
507 $notify_message = apply_filters('comment_moderation_text', $notify_message, $comment_id);
508 $subject = apply_filters('comment_moderation_subject', $subject, $comment_id);
509
510 @wp_mail($admin_email, $subject, $notify_message);
511
512 return true;
513}
514endif;
515
516if ( !function_exists('wp_new_user_notification') ) :
517function wp_new_user_notification($user_id, $plaintext_pass = '') {
518 $user = new WP_User($user_id);
519
520 $user_login = stripslashes($user->user_login);
521 $user_email = stripslashes($user->user_email);
522
523 $message = sprintf(__('New user registration on your blog %s:'), get_option('blogname')) . "\r\n\r\n";
524 $message .= sprintf(__('Username: %s'), $user_login) . "\r\n\r\n";
525 $message .= sprintf(__('E-mail: %s'), $user_email) . "\r\n";
526
527 @wp_mail(get_option('admin_email'), sprintf(__('[%s] New User Registration'), get_option('blogname')), $message);
528
529 if ( empty($plaintext_pass) )
530 return;
531
532 $message = sprintf(__('Username: %s'), $user_login) . "\r\n";
533 $message .= sprintf(__('Password: %s'), $plaintext_pass) . "\r\n";
534 $message .= get_option('siteurl') . "/wp-login.php\r\n";
535
536 wp_mail($user_email, sprintf(__('[%s] Your username and password'), get_option('blogname')), $message);
537
538}
539endif;
540
541if ( !function_exists('wp_verify_nonce') ) :
542function wp_verify_nonce($nonce, $action = -1) {
543 $user = wp_get_current_user();
544 $uid = (int) $user->id;
545
546 $i = ceil(time() / 43200);
547
548 //Allow for expanding range, but only do one check if we can
549 if( substr(wp_hash($i . $action . $uid), -12, 10) == $nonce || substr(wp_hash(($i - 1) . $action . $uid), -12, 10) == $nonce )
550 return true;
551 return false;
552}
553endif;
554
555if ( !function_exists('wp_create_nonce') ) :
556function wp_create_nonce($action = -1) {
557 $user = wp_get_current_user();
558 $uid = (int) $user->id;
559
560 $i = ceil(time() / 43200);
561
562 return substr(wp_hash($i . $action . $uid), -12, 10);
563}
564endif;
565
566if ( !function_exists('wp_salt') ) :
567function wp_salt() {
568 $salt = get_option('secret');
569 if ( empty($salt) )
570 $salt = DB_PASSWORD . DB_USER . DB_NAME . DB_HOST . ABSPATH;
571
572 return $salt;
573}
574endif;
575
576if ( !function_exists('wp_hash') ) :
577function wp_hash($data) {
578 $salt = wp_salt();
579
580 if ( function_exists('hash_hmac') ) {
581 return hash_hmac('md5', $data, $salt);
582 } else {
583 return md5($data . $salt);
584 }
585}
586endif;
587
588?>