4 Plugin URI: http://akismet.com/
5 Description: Akismet checks your comments against the Akismet web service to see if they look like spam or not. You need an <a href="http://akismet.com/get/">API key</a> to use it. You can review the spam it catches under "Comments." To show off your Akismet stats just put <code><?php akismet_counter(); ?></code> in your template. See also: <a href="http://wordpress.org/extend/plugins/stats/">WP Stats plugin</a>.
8 Author URI: http://automattic.com/wordpress-plugins/
11 define('AKISMET_VERSION', '2.3.0');
13 // If you hardcode a WP.com API key here, all key config screens will be hidden
14 if ( defined('WPCOM_API_KEY') )
15 $wpcom_api_key = constant('WPCOM_API_KEY');
19 function akismet_init() {
20 global $wpcom_api_key, $akismet_api_host, $akismet_api_port;
23 $akismet_api_host = $wpcom_api_key . '.rest.akismet.com';
25 $akismet_api_host = get_option('wordpress_api_key') . '.rest.akismet.com';
27 $akismet_api_port = 80;
28 add_action('admin_menu', 'akismet_config_page');
29 add_action('admin_menu', 'akismet_stats_page');
30 akismet_admin_warnings();
32 add_action('init', 'akismet_init');
34 function akismet_admin_init() {
35 if ( function_exists( 'get_plugin_page_hook' ) )
36 $hook = get_plugin_page_hook( 'akismet-stats-display', 'index.php' );
38 $hook = 'dashboard_page_akismet-stats-display';
39 add_action('admin_head-'.$hook, 'akismet_stats_script');
41 add_action('admin_init', 'akismet_admin_init');
43 if ( !function_exists('wp_nonce_field') ) {
44 function akismet_nonce_field($action = -1) { return; }
47 function akismet_nonce_field($action = -1) { return wp_nonce_field($action); }
48 $akismet_nonce = 'akismet-update-key';
51 if ( !function_exists('number_format_i18n') ) {
52 function number_format_i18n( $number, $decimals = null ) { return number_format( $number, $decimals ); }
55 function akismet_config_page() {
56 if ( function_exists('add_submenu_page') )
57 add_submenu_page('plugins.php', __('Akismet Configuration'), __('Akismet Configuration'), 'manage_options', 'akismet-key-config', 'akismet_conf');
61 function akismet_conf() {
62 global $akismet_nonce, $wpcom_api_key;
64 if ( isset($_POST['submit']) ) {
65 if ( function_exists('current_user_can') && !current_user_can('manage_options') )
66 die(__('Cheatin’ uh?'));
68 check_admin_referer( $akismet_nonce );
69 $key = preg_replace( '/[^a-h0-9]/i', '', $_POST['key'] );
72 $key_status = 'empty';
73 $ms[] = 'new_key_empty';
74 delete_option('wordpress_api_key');
76 $key_status = akismet_verify_key( $key );
79 if ( $key_status == 'valid' ) {
80 update_option('wordpress_api_key', $key);
81 $ms[] = 'new_key_valid';
82 } else if ( $key_status == 'invalid' ) {
83 $ms[] = 'new_key_invalid';
84 } else if ( $key_status == 'failed' ) {
85 $ms[] = 'new_key_failed';
88 if ( isset( $_POST['akismet_discard_month'] ) )
89 update_option( 'akismet_discard_month', 'true' );
91 update_option( 'akismet_discard_month', 'false' );
92 } elseif ( isset($_POST['check']) ) {
93 akismet_get_server_connectivity(0);
96 if ( $key_status != 'valid' ) {
97 $key = get_option('wordpress_api_key');
98 if ( empty( $key ) ) {
99 if ( $key_status != 'failed' ) {
100 if ( akismet_verify_key( '1234567890ab' ) == 'failed' )
101 $ms[] = 'no_connection';
105 $key_status = 'empty';
107 $key_status = akismet_verify_key( $key );
109 if ( $key_status == 'valid' ) {
111 } else if ( $key_status == 'invalid' ) {
112 delete_option('wordpress_api_key');
114 } else if ( !empty($key) && $key_status == 'failed' ) {
115 $ms[] = 'key_failed';
120 'new_key_empty' => array('color' => 'aa0', 'text' => __('Your key has been cleared.')),
121 'new_key_valid' => array('color' => '2d2', 'text' => __('Your key has been verified. Happy blogging!')),
122 'new_key_invalid' => array('color' => 'd22', 'text' => __('The key you entered is invalid. Please double-check it.')),
123 'new_key_failed' => array('color' => 'd22', 'text' => __('The key you entered could not be verified because a connection to akismet.com could not be established. Please check your server configuration.')),
124 'no_connection' => array('color' => 'd22', 'text' => __('There was a problem connecting to the Akismet server. Please check your server configuration.')),
125 'key_empty' => array('color' => 'aa0', 'text' => sprintf(__('Please enter an API key. (<a href="%s" style="color:#fff">Get your key.</a>)'), 'http://akismet.com/get/')),
126 'key_valid' => array('color' => '2d2', 'text' => __('This key is valid.')),
127 'key_failed' => array('color' => 'aa0', 'text' => __('The key below was previously validated but a connection to akismet.com can not be established at this time. Please check your server configuration.')));
129 <?php if ( !empty($_POST['submit'] ) ) : ?>
130 <div id="message" class="updated fade"><p><strong><?php _e('Options saved.') ?></strong></p></div>
133 <h2><?php _e('Akismet Configuration'); ?></h2>
135 <form action="" method="post" id="akismet-conf" style="margin: auto; width: 400px; ">
136 <?php if ( !$wpcom_api_key ) { ?>
137 <p><?php printf(__('For many people, <a href="%1$s">Akismet</a> will greatly reduce or even completely eliminate the comment and trackback spam you get on your site. If one does happen to get through, simply mark it as "spam" on the moderation screen and Akismet will learn from the mistakes. If you don\'t have an API key yet, you can get one at <a href="%2$s">Akismet.com</a>.'), 'http://akismet.com/', 'http://akismet.com/get/'); ?></p>
139 <h3><label for="key"><?php _e('Akismet API Key'); ?></label></h3>
140 <?php foreach ( $ms as $m ) : ?>
141 <p style="padding: .5em; background-color: #<?php echo $messages[$m]['color']; ?>; color: #fff; font-weight: bold;"><?php echo $messages[$m]['text']; ?></p>
143 <p><input id="key" name="key" type="text" size="15" maxlength="12" value="<?php echo get_option('wordpress_api_key'); ?>" style="font-family: 'Courier New', Courier, mono; font-size: 1.5em;" /> (<?php _e('<a href="http://akismet.com/get/">What is this?</a>'); ?>)</p>
144 <?php if ( $invalid_key ) { ?>
145 <h3><?php _e('Why might my key be invalid?'); ?></h3>
146 <p><?php _e('This can mean one of two things, either you copied the key wrong or that the plugin is unable to reach the Akismet servers, which is most often caused by an issue with your web host around firewalls or similar.'); ?></p>
149 <?php akismet_nonce_field($akismet_nonce) ?>
150 <p><label><input name="akismet_discard_month" id="akismet_discard_month" value="true" type="checkbox" <?php if ( get_option('akismet_discard_month') == 'true' ) echo ' checked="checked" '; ?> /> <?php _e('Automatically discard spam comments on posts older than a month.'); ?></label></p>
151 <p class="submit"><input type="submit" name="submit" value="<?php _e('Update options »'); ?>" /></p>
154 <form action="" method="post" id="akismet-connectivity" style="margin: auto; width: 400px; ">
156 <h3><?php _e('Server Connectivity'); ?></h3>
158 if ( !function_exists('fsockopen') || !function_exists('gethostbynamel') ) {
160 <p style="padding: .5em; background-color: #d22; color: #fff; font-weight:bold;"><?php _e('Network functions are disabled.'); ?></p>
161 <p><?php echo sprintf( __('Your web host or server administrator has disabled PHP\'s <code>fsockopen</code> or <code>gethostbynamel</code> functions. <strong>Akismet cannot work correctly until this is fixed.</strong> Please contact your web host or firewall administrator and give them <a href="%s" target="_blank">this information about Akismet\'s system requirements</a>.'), 'http://blog.akismet.com/akismet-hosting-faq/'); ?></p>
164 $servers = akismet_get_server_connectivity();
165 $fail_count = count($servers) - count( array_filter($servers) );
166 if ( is_array($servers) && count($servers) > 0 ) {
167 // some connections work, some fail
168 if ( $fail_count > 0 && $fail_count < count($servers) ) { ?>
169 <p style="padding: .5em; background-color: #aa0; color: #fff; font-weight:bold;"><?php _e('Unable to reach some Akismet servers.'); ?></p>
170 <p><?php echo sprintf( __('A network problem or firewall is blocking some connections from your web server to Akismet.com. Akismet is working but this may cause problems during times of network congestion. Please contact your web host or firewall administrator and give them <a href="%s" target="_blank">this information about Akismet and firewalls</a>.'), 'http://blog.akismet.com/akismet-hosting-faq/'); ?></p>
172 // all connections fail
173 } elseif ( $fail_count > 0 ) { ?>
174 <p style="padding: .5em; background-color: #d22; color: #fff; font-weight:bold;"><?php _e('Unable to reach any Akismet servers.'); ?></p>
175 <p><?php echo sprintf( __('A network problem or firewall is blocking all connections from your web server to Akismet.com. <strong>Akismet cannot work correctly until this is fixed.</strong> Please contact your web host or firewall administrator and give them <a href="%s" target="_blank">this information about Akismet and firewalls</a>.'), 'http://blog.akismet.com/akismet-hosting-faq/'); ?></p>
177 // all connections work
179 <p style="padding: .5em; background-color: #2d2; color: #fff; font-weight:bold;"><?php _e('All Akismet servers are available.'); ?></p>
180 <p><?php _e('Akismet is working correctly. All servers are accessible.'); ?></p>
185 <p style="padding: .5em; background-color: #d22; color: #fff; font-weight:bold;"><?php _e('Unable to find Akismet servers.'); ?></p>
186 <p><?php echo sprintf( __('A DNS problem or firewall is preventing all access from your web server to Akismet.com. <strong>Akismet cannot work correctly until this is fixed.</strong> Please contact your web host or firewall administrator and give them <a href="%s" target="_blank">this information about Akismet and firewalls</a>.'), 'http://blog.akismet.com/akismet-hosting-faq/'); ?></p>
191 if ( !empty($servers) ) {
193 <table style="width: 100%;">
194 <thead><th><?php _e('Akismet server'); ?></th><th><?php _e('Network Status'); ?></th></thead>
198 foreach ( $servers as $ip => $status ) {
199 $color = ( $status ? '#2d2' : '#d22');
202 <td><?php echo htmlspecialchars($ip); ?></td>
203 <td style="padding: 0 .5em; font-weight:bold; color: #fff; background-color: <?php echo $color; ?>"><?php echo ($status ? __('No problems') : __('Obstructed') ); ?></td>
211 <p><?php if ( get_option('akismet_connectivity_time') ) echo sprintf( __('Last checked %s ago.'), human_time_diff( get_option('akismet_connectivity_time') ) ); ?></p>
212 <p class="submit"><input type="submit" name="check" value="<?php _e('Check network status »'); ?>" /></p>
220 function akismet_stats_page() {
221 if ( function_exists('add_submenu_page') )
222 add_submenu_page('index.php', __('Akismet Stats'), __('Akismet Stats'), 'manage_options', 'akismet-stats-display', 'akismet_stats_display');
226 function akismet_stats_script() {
228 <script type="text/javascript">
229 function resizeIframe() {
230 var height = document.documentElement.clientHeight;
231 height -= document.getElementById('akismet-stats-frame').offsetTop;
232 height += 100; // magic padding
234 document.getElementById('akismet-stats-frame').style.height = height +"px";
237 function resizeIframeInit() {
238 document.getElementById('akismet-stats-frame').onload = resizeIframe;
239 window.onresize = resizeIframe;
241 addLoadEvent(resizeIframeInit);
246 function akismet_stats_display() {
247 global $akismet_api_host, $akismet_api_port, $wpcom_api_key;
248 $blog = urlencode( get_option('home') );
249 $url = "http://".akismet_get_key().".web.akismet.com/1.0/user-stats.php?blog={$blog}";
252 <iframe src="<?php echo $url; ?>" width="100%" height="100%" frameborder="0" id="akismet-stats-frame"></iframe>
257 function akismet_get_key() {
258 global $wpcom_api_key;
259 if ( !empty($wpcom_api_key) )
260 return $wpcom_api_key;
261 return get_option('wordpress_api_key');
264 function akismet_verify_key( $key, $ip = null ) {
265 global $akismet_api_host, $akismet_api_port, $wpcom_api_key;
266 $blog = urlencode( get_option('home') );
267 if ( $wpcom_api_key )
268 $key = $wpcom_api_key;
269 $response = akismet_http_post("key=$key&blog=$blog", 'rest.akismet.com', '/1.1/verify-key', $akismet_api_port, $ip);
270 if ( !is_array($response) || !isset($response[1]) || $response[1] != 'valid' && $response[1] != 'invalid' )
275 // Check connectivity between the WordPress blog and Akismet's servers.
276 // Returns an associative array of server IP addresses, where the key is the IP address, and value is true (available) or false (unable to connect).
277 function akismet_check_server_connectivity() {
278 global $akismet_api_host, $akismet_api_port, $wpcom_api_key;
280 $test_host = 'rest.akismet.com';
282 // Some web hosts may disable one or both functions
283 if ( !function_exists('fsockopen') || !function_exists('gethostbynamel') )
286 $ips = gethostbynamel($test_host);
287 if ( !$ips || !is_array($ips) || !count($ips) )
291 foreach ( $ips as $ip ) {
292 $response = akismet_verify_key( akismet_get_key(), $ip );
293 // even if the key is invalid, at least we know we have connectivity
294 if ( $response == 'valid' || $response == 'invalid' )
295 $servers[$ip] = true;
297 $servers[$ip] = false;
303 // Check the server connectivity and store the results in an option.
304 // Cached results will be used if not older than the specified timeout in seconds; use $cache_timeout = 0 to force an update.
305 // Returns the same associative array as akismet_check_server_connectivity()
306 function akismet_get_server_connectivity( $cache_timeout = 86400 ) {
307 $servers = get_option('akismet_available_servers');
308 if ( (time() - get_option('akismet_connectivity_time') < $cache_timeout) && $servers !== false )
311 // There's a race condition here but the effect is harmless.
312 $servers = akismet_check_server_connectivity();
313 update_option('akismet_available_servers', $servers);
314 update_option('akismet_connectivity_time', time());
318 // Returns true if server connectivity was OK at the last check, false if there was a problem that needs to be fixed.
319 function akismet_server_connectivity_ok() {
320 // skip the check on WPMU because the status page is hidden
321 global $wpcom_api_key;
322 if ( $wpcom_api_key )
324 $servers = akismet_get_server_connectivity();
325 return !( empty($servers) || !count($servers) || count( array_filter($servers) ) < count($servers) );
328 function akismet_admin_warnings() {
329 global $wpcom_api_key;
330 if ( !get_option('wordpress_api_key') && !$wpcom_api_key && !isset($_POST['submit']) ) {
331 function akismet_warning() {
333 <div id='akismet-warning' class='updated fade'><p><strong>".__('Akismet is almost ready.')."</strong> ".sprintf(__('You must <a href="%1$s">enter your Akismet API key</a> for it to work.'), "plugins.php?page=akismet-key-config")."</p></div>
336 add_action('admin_notices', 'akismet_warning');
338 } elseif ( get_option('akismet_connectivity_time') && empty($_POST) && is_admin() && !akismet_server_connectivity_ok() ) {
339 function akismet_warning() {
341 <div id='akismet-warning' class='updated fade'><p><strong>".__('Akismet has detected a problem.')."</strong> ".sprintf(__('A server or network problem is preventing Akismet from working correctly. <a href="%1$s">Click here for more information</a> about how to fix the problem.'), "plugins.php?page=akismet-key-config")."</p></div>
344 add_action('admin_notices', 'akismet_warning');
349 function akismet_get_host($host) {
350 // if all servers are accessible, just return the host name.
351 // if not, return an IP that was known to be accessible at the last check.
352 if ( akismet_server_connectivity_ok() ) {
355 $ips = akismet_get_server_connectivity();
356 // a firewall may be blocking access to some Akismet IPs
357 if ( count($ips) > 0 && count(array_filter($ips)) < count($ips) ) {
358 // use DNS to get current IPs, but exclude any known to be unreachable
359 $dns = (array)gethostbynamel( rtrim($host, '.') . '.' );
360 $dns = array_filter($dns);
361 foreach ( $dns as $ip ) {
362 if ( array_key_exists( $ip, $ips ) && empty( $ips[$ip] ) )
365 // return a random IP from those available
367 return $dns[ array_rand($dns) ];
371 // if all else fails try the host name
375 // return a comma-separated list of role names for the given user
376 function akismet_get_user_roles($user_id ) {
379 if ( !class_exists('WP_User') )
382 if ( $user_id > 0 ) {
383 $comment_user = new WP_User($user_id);
384 if ( isset($comment_user->roles) )
385 $roles = join(',', $comment_user->roles);
391 // Returns array with headers in $response[0] and body in $response[1]
392 function akismet_http_post($request, $host, $path, $port = 80, $ip=null) {
395 $akismet_version = constant('AKISMET_VERSION');
397 $http_request = "POST $path HTTP/1.0\r\n";
398 $http_request .= "Host: $host\r\n";
399 $http_request .= "Content-Type: application/x-www-form-urlencoded; charset=" . get_option('blog_charset') . "\r\n";
400 $http_request .= "Content-Length: " . strlen($request) . "\r\n";
401 $http_request .= "User-Agent: WordPress/$wp_version | Akismet/$akismet_version\r\n";
402 $http_request .= "\r\n";
403 $http_request .= $request;
406 // use a specific IP if provided - needed by akismet_check_server_connectivity()
407 if ( $ip && long2ip(ip2long($ip)) ) {
410 $http_host = akismet_get_host($host);
414 if( false != ( $fs = @fsockopen($http_host, $port, $errno, $errstr, 10) ) ) {
415 fwrite($fs, $http_request);
418 $response .= fgets($fs, 1160); // One TCP-IP packet
420 $response = explode("\r\n\r\n", $response, 2);
425 // filter handler used to return a spam result to pre_comment_approved
426 function akismet_result_spam( $approved ) {
427 // bump the counter here instead of when the filter is added to reduce the possibility of overcounting
428 if ( $incr = apply_filters('akismet_spam_count_incr', 1) )
429 update_option( 'akismet_spam_count', get_option('akismet_spam_count') + $incr );
433 function akismet_auto_check_comment( $comment ) {
434 global $akismet_api_host, $akismet_api_port;
436 $comment['user_ip'] = $_SERVER['REMOTE_ADDR'];
437 $comment['user_agent'] = $_SERVER['HTTP_USER_AGENT'];
438 $comment['referrer'] = $_SERVER['HTTP_REFERER'];
439 $comment['blog'] = get_option('home');
440 $comment['blog_lang'] = get_locale();
441 $comment['blog_charset'] = get_option('blog_charset');
442 $comment['permalink'] = get_permalink($comment['comment_post_ID']);
444 $comment['user_role'] = akismet_get_user_roles($comment['user_ID']);
446 $ignore = array( 'HTTP_COOKIE' );
448 foreach ( $_SERVER as $key => $value )
449 if ( !in_array( $key, $ignore ) && is_string($value) )
450 $comment["$key"] = $value;
453 foreach ( $comment as $key => $data )
454 $query_string .= $key . '=' . urlencode( stripslashes($data) ) . '&';
456 $response = akismet_http_post($query_string, $akismet_api_host, '/1.1/comment-check', $akismet_api_port);
457 if ( 'true' == $response[1] ) {
458 // akismet_spam_count will be incremented later by akismet_result_spam()
459 add_filter('pre_comment_approved', 'akismet_result_spam');
461 do_action( 'akismet_spam_caught' );
463 $post = get_post( $comment['comment_post_ID'] );
464 $last_updated = strtotime( $post->post_modified_gmt );
465 $diff = time() - $last_updated;
466 $diff = $diff / 86400;
468 if ( $post->post_type == 'post' && $diff > 30 && get_option( 'akismet_discard_month' ) == 'true' && empty($comment['user_ID']) ) {
469 // akismet_result_spam() won't be called so bump the counter here
470 if ( $incr = apply_filters('akismet_spam_count_incr', 1) )
471 update_option( 'akismet_spam_count', get_option('akismet_spam_count') + $incr );
475 akismet_delete_old();
479 function akismet_delete_old() {
481 $now_gmt = current_time('mysql', 1);
482 $wpdb->query("DELETE FROM $wpdb->comments WHERE DATE_SUB('$now_gmt', INTERVAL 15 DAY) > comment_date_gmt AND comment_approved = 'spam'");
483 $n = mt_rand(1, 5000);
484 if ( $n == 11 ) // lucky number
485 $wpdb->query("OPTIMIZE TABLE $wpdb->comments");
488 function akismet_submit_nonspam_comment ( $comment_id ) {
489 global $wpdb, $akismet_api_host, $akismet_api_port, $current_user, $current_site;
490 $comment_id = (int) $comment_id;
492 $comment = $wpdb->get_row("SELECT * FROM $wpdb->comments WHERE comment_ID = '$comment_id'");
493 if ( !$comment ) // it was deleted
495 $comment->blog = get_option('home');
496 $comment->blog_lang = get_locale();
497 $comment->blog_charset = get_option('blog_charset');
498 $comment->permalink = get_permalink($comment->comment_post_ID);
499 if ( is_object($current_user) ) {
500 $comment->reporter = $current_user->user_login;
502 if ( is_object($current_site) ) {
503 $comment->site_domain = $current_site->domain;
505 $comment->user_role = akismet_get_user_roles($comment->user_ID);
508 foreach ( $comment as $key => $data )
509 $query_string .= $key . '=' . urlencode( stripslashes($data) ) . '&';
511 $response = akismet_http_post($query_string, $akismet_api_host, "/1.1/submit-ham", $akismet_api_port);
514 function akismet_submit_spam_comment ( $comment_id ) {
515 global $wpdb, $akismet_api_host, $akismet_api_port, $current_user, $current_site;
516 $comment_id = (int) $comment_id;
518 $comment = $wpdb->get_row("SELECT * FROM $wpdb->comments WHERE comment_ID = '$comment_id'");
519 if ( !$comment ) // it was deleted
521 if ( 'spam' != $comment->comment_approved )
523 $comment->blog = get_option('home');
524 $comment->blog_lang = get_locale();
525 $comment->blog_charset = get_option('blog_charset');
526 $comment->permalink = get_permalink($comment->comment_post_ID);
527 if ( is_object($current_user) ) {
528 $comment->reporter = $current_user->user_login;
530 if ( is_object($current_site) ) {
531 $comment->site_domain = $current_site->domain;
533 $comment->user_role = akismet_get_user_roles($comment->user_ID);
535 foreach ( $comment as $key => $data )
536 $query_string .= $key . '=' . urlencode( stripslashes($data) ) . '&';
538 $response = akismet_http_post($query_string, $akismet_api_host, "/1.1/submit-spam", $akismet_api_port);
541 add_action('preprocess_comment', 'akismet_auto_check_comment', 1);
543 // For old versions of WP only
544 function akismet_set_comment_status( $comment_id, $status ) {
545 if ( $status == 'spam' ) {
546 akismet_submit_spam_comment( $comment_id );
547 } elseif ( $status == 'approve' ) {
548 akismet_submit_nonspam_comment( $comment_id );
553 function akismet_transition_comment_status( $new_status, $old_status, $comment ) {
554 if ( $new_status == $old_status )
557 if ( $new_status == 'spam' ) {
558 akismet_submit_spam_comment( $comment->comment_ID );
559 } elseif ( $old_status == 'spam' && ( $new_status == 'approved' || $new_status == 'unapproved' ) ) {
560 akismet_submit_nonspam_comment( $comment->comment_ID );
564 function akismet_spamtoham( $comment ) { akismet_submit_nonspam_comment( $comment->comment_ID ); }
566 if ( function_exists( 'wp_transition_comment_status' ) ) {
567 add_action( 'transition_comment_status', 'akismet_transition_comment_status', 10, 3 );
569 add_action('wp_set_comment_status', 'akismet_set_comment_status', 10, 2);
570 add_action('edit_comment', 'akismet_submit_spam_comment');
571 add_filter( 'comment_spam_to_approved', 'akismet_spamtoham' );
572 add_filter( 'comment_spam_to_unapproved', 'akismet_spamtoham' );
574 // Total spam in queue
575 // get_option( 'akismet_spam_count' ) is the total caught ever
576 function akismet_spam_count( $type = false ) {
579 if ( !$type ) { // total
580 $count = wp_cache_get( 'akismet_spam_count', 'widget' );
581 if ( false === $count ) {
582 if ( function_exists('wp_count_comments') ) {
583 $count = wp_count_comments();
584 $count = $count->spam;
586 $count = (int) $wpdb->get_var("SELECT COUNT(comment_ID) FROM $wpdb->comments WHERE comment_approved = 'spam'");
588 wp_cache_set( 'akismet_spam_count', $count, 'widget', 3600 );
591 } elseif ( 'comments' == $type || 'comment' == $type ) { // comments
593 } else { // pingback, trackback, ...
594 $type = $wpdb->escape( $type );
597 return (int) $wpdb->get_var("SELECT COUNT(comment_ID) FROM $wpdb->comments WHERE comment_approved = 'spam' AND comment_type='$type'");
600 function akismet_spam_comments( $type = false, $page = 1, $per_page = 50 ) {
607 $per_page = (int) $per_page;
611 $start = ( $page - 1 ) * $per_page;
612 $end = $start + $per_page;
615 if ( 'comments' == $type || 'comment' == $type )
618 $type = $wpdb->escape( $type );
619 return $wpdb->get_results( "SELECT * FROM $wpdb->comments WHERE comment_approved = 'spam' AND comment_type='$type' ORDER BY comment_date DESC LIMIT $start, $end");
623 return $wpdb->get_results( "SELECT * FROM $wpdb->comments WHERE comment_approved = 'spam' ORDER BY comment_date DESC LIMIT $start, $end");
626 // Totals for each comment type
627 // returns array( type => count, ... )
628 function akismet_spam_totals() {
630 $totals = $wpdb->get_results( "SELECT comment_type, COUNT(*) AS cc FROM $wpdb->comments WHERE comment_approved = 'spam' GROUP BY comment_type" );
632 foreach ( $totals as $total )
633 $return[$total->comment_type ? $total->comment_type : 'comment'] = $total->cc;
637 function akismet_manage_page() {
638 global $wpdb, $submenu, $wp_db_version;
640 // WP 2.7 has its own spam management page
641 if ( 8645 <= $wp_db_version )
644 $count = sprintf(__('Akismet Spam (%s)'), akismet_spam_count());
645 if ( isset( $submenu['edit-comments.php'] ) )
646 add_submenu_page('edit-comments.php', __('Akismet Spam'), $count, 'moderate_comments', 'akismet-admin', 'akismet_caught' );
647 elseif ( function_exists('add_management_page') )
648 add_management_page(__('Akismet Spam'), $count, 'moderate_comments', 'akismet-admin', 'akismet_caught');
651 function akismet_caught() {
652 global $wpdb, $comment, $akismet_caught, $akismet_nonce;
654 akismet_recheck_queue();
655 if (isset($_POST['submit']) && 'recover' == $_POST['action'] && ! empty($_POST['not_spam'])) {
656 check_admin_referer( $akismet_nonce );
657 if ( function_exists('current_user_can') && !current_user_can('moderate_comments') )
658 die(__('You do not have sufficient permission to moderate comments.'));
661 foreach ($_POST['not_spam'] as $comment):
662 $comment = (int) $comment;
663 if ( function_exists('wp_set_comment_status') )
664 wp_set_comment_status($comment, 'approve');
666 $wpdb->query("UPDATE $wpdb->comments SET comment_approved = '1' WHERE comment_ID = '$comment'");
667 akismet_submit_nonspam_comment($comment);
670 $to = add_query_arg( 'recovered', $i, $_SERVER['HTTP_REFERER'] );
674 if ('delete' == $_POST['action']) {
675 check_admin_referer( $akismet_nonce );
676 if ( function_exists('current_user_can') && !current_user_can('moderate_comments') )
677 die(__('You do not have sufficient permission to moderate comments.'));
679 $delete_time = $wpdb->escape( $_POST['display_time'] );
680 $nuked = $wpdb->query( "DELETE FROM $wpdb->comments WHERE comment_approved = 'spam' AND '$delete_time' > comment_date_gmt" );
681 wp_cache_delete( 'akismet_spam_count', 'widget' );
682 $to = add_query_arg( 'deleted', 'all', $_SERVER['HTTP_REFERER'] );
687 if ( isset( $_GET['recovered'] ) ) {
688 $i = (int) $_GET['recovered'];
689 echo '<div class="updated"><p>' . sprintf(__('%1$s comments recovered.'), $i) . "</p></div>";
692 if (isset( $_GET['deleted'] ) )
693 echo '<div class="updated"><p>' . __('All spam deleted.') . '</p></div>';
695 if ( isset( $GLOBALS['submenu']['edit-comments.php'] ) )
696 $link = 'edit-comments.php';
700 <style type="text/css">
706 border-bottom: 1px solid #ccc;
710 border-top: 1px solid #bdbdbd;
714 margin: 5px 0 0 20px;
718 padding: 4px .5em 3px;
722 .akismet-tabs .active a {
724 border: 1px solid #ccc;
741 <h2><?php _e('Caught Spam') ?></h2>
743 $count = get_option( 'akismet_spam_count' );
746 <p><?php printf(__('Akismet has caught <strong>%1$s spam</strong> for you since you first installed it.'), number_format_i18n($count) ); ?></p>
750 $spam_count = akismet_spam_count();
752 if ( 0 == $spam_count ) {
753 echo '<p>'.__('You have no spam currently in the queue. Must be your lucky day. :)').'</p>';
756 echo '<p>'.__('You can delete all of the spam from your database with a single click. This operation cannot be undone, so you may wish to check to ensure that no legitimate comments got through first. Spam is automatically deleted after 15 days, so don’t sweat it.').'</p>';
758 <?php if ( !isset( $_POST['s'] ) ) { ?>
759 <form method="post" action="<?php echo attribute_escape( add_query_arg( 'noheader', 'true' ) ); ?>">
760 <?php akismet_nonce_field($akismet_nonce) ?>
761 <input type="hidden" name="action" value="delete" />
762 <?php printf(__('There are currently %1$s comments identified as spam.'), $spam_count); ?> <input type="submit" class="button delete" name="Submit" value="<?php _e('Delete all'); ?>" />
763 <input type="hidden" name="display_time" value="<?php echo current_time('mysql', 1); ?>" />
768 <?php if ( isset( $_POST['s'] ) ) { ?>
769 <h2><?php _e('Search'); ?></h2>
771 <?php echo '<p>'.__('These are the latest comments identified as spam by Akismet. If you see any mistakes, simply mark the comment as "not spam" and Akismet will learn from the submission. If you wish to recover a comment from spam, simply select the comment, and click Not Spam. After 15 days we clean out the junk for you.').'</p>'; ?>
774 if ( isset( $_POST['s'] ) ) {
775 $s = $wpdb->escape($_POST['s']);
776 $comments = $wpdb->get_results("SELECT * FROM $wpdb->comments WHERE
777 (comment_author LIKE '%$s%' OR
778 comment_author_email LIKE '%$s%' OR
779 comment_author_url LIKE ('%$s%') OR
780 comment_author_IP LIKE ('%$s%') OR
781 comment_content LIKE ('%$s%') ) AND
782 comment_approved = 'spam'
783 ORDER BY comment_date DESC");
785 if ( isset( $_GET['apage'] ) )
786 $page = (int) $_GET['apage'];
793 $current_type = false;
794 if ( isset( $_GET['ctype'] ) )
795 $current_type = preg_replace( '|[^a-z]|', '', $_GET['ctype'] );
797 $comments = akismet_spam_comments( $current_type, $page );
798 $total = akismet_spam_count( $current_type );
799 $totals = akismet_spam_totals();
801 <ul class="akismet-tabs">
802 <li <?php if ( !isset( $_GET['ctype'] ) ) echo ' class="active"'; ?>><a href="edit-comments.php?page=akismet-admin"><?php _e('All'); ?></a></li>
804 foreach ( $totals as $type => $type_count ) {
805 if ( 'comment' == $type ) {
807 $show = __('Comments');
809 $show = ucwords( $type );
811 $type_count = number_format_i18n( $type_count );
812 $extra = $current_type === $type ? ' class="active"' : '';
813 echo "<li $extra><a href='edit-comments.php?page=akismet-admin&ctype=$type'>$show ($type_count)</a></li>";
815 do_action( 'akismet_tabs' ); // so plugins can add more tabs easily
823 <form method="post" action="<?php echo attribute_escape("$link?page=akismet-admin"); ?>" id="akismetsearch">
824 <p> <input type="text" name="s" value="<?php if (isset($_POST['s'])) echo attribute_escape($_POST['s']); ?>" size="17" />
825 <input type="submit" class="button" name="submit" value="<?php echo attribute_escape(__('Search Spam »')) ?>" /> </p>
827 <?php if ( $total > 50 ) {
828 $total_pages = ceil( $total / 50 );
831 $args['apage'] = ( 1 == $page - 1 ) ? '' : $page - 1;
832 $r .= '<a class="prev" href="' . clean_url(add_query_arg( $args )) . '">'. __('« Previous Page') .'</a>' . "\n";
834 if ( ( $total_pages = ceil( $total / 50 ) ) > 1 ) {
835 for ( $page_num = 1; $page_num <= $total_pages; $page_num++ ) :
836 if ( $page == $page_num ) :
837 $r .= "<strong>$page_num</strong>\n";
840 if ( $page_num < 3 || ( $page_num >= $page - 3 && $page_num <= $page + 3 ) || $page_num > $total_pages - 3 ) :
841 $args['apage'] = ( 1 == $page_num ) ? '' : $page_num;
842 $r .= '<a class="page-numbers" href="' . clean_url(add_query_arg($args)) . '">' . ( $page_num ) . "</a>\n";
844 elseif ( $in == true ) :
851 if ( ( $page ) * 50 < $total || -1 == $total ) {
852 $args['apage'] = $page + 1;
853 $r .= '<a class="next" href="' . clean_url(add_query_arg($args)) . '">'. __('Next Page »') .'</a>' . "\n";
859 <form style="clear: both;" method="post" action="<?php echo attribute_escape( add_query_arg( 'noheader', 'true' ) ); ?>">
860 <?php akismet_nonce_field($akismet_nonce) ?>
861 <input type="hidden" name="action" value="recover" />
862 <ul id="spam-list" class="commentlist" style="list-style: none; margin: 0; padding: 0;">
865 foreach($comments as $comment) {
867 $comment_date = mysql2date(get_option("date_format") . " @ " . get_option("time_format"), $comment->comment_date);
868 $post = get_post($comment->comment_post_ID);
869 $post_title = $post->post_title;
870 if ($i % 2) $class = 'class="alternate"';
872 echo "\n\t<li id='comment-$comment->comment_ID' $class>";
875 <p><strong><?php comment_author() ?></strong> <?php if ($comment->comment_author_email) { ?>| <?php comment_author_email_link() ?> <?php } if ($comment->comment_author_url && 'http://' != $comment->comment_author_url) { ?> | <?php comment_author_url_link() ?> <?php } ?>| <?php _e('IP:') ?> <a href="http://ws.arin.net/cgi-bin/whois.pl?queryinput=<?php comment_author_IP() ?>"><?php comment_author_IP() ?></a></p>
877 <?php comment_text() ?>
879 <p><label for="spam-<?php echo $comment->comment_ID; ?>">
880 <input type="checkbox" id="spam-<?php echo $comment->comment_ID; ?>" name="not_spam[]" value="<?php echo $comment->comment_ID; ?>" />
881 <?php _e('Not Spam') ?></label> — <?php comment_date('M j, g:i A'); ?> — [
883 $post = get_post($comment->comment_post_ID);
884 $post_title = wp_specialchars( $post->post_title, 'double' );
885 $post_title = ('' == $post_title) ? "# $comment->comment_post_ID" : $post_title;
887 <a href="<?php echo get_permalink($comment->comment_post_ID); ?>" title="<?php echo $post_title; ?>"><?php _e('View Post') ?></a> ] </p>
894 <?php if ( $total > 50 ) {
895 $total_pages = ceil( $total / 50 );
898 $args['apage'] = ( 1 == $page - 1 ) ? '' : $page - 1;
899 $r .= '<a class="prev" href="' . clean_url(add_query_arg( $args )) . '">'. __('« Previous Page') .'</a>' . "\n";
901 if ( ( $total_pages = ceil( $total / 50 ) ) > 1 ) {
902 for ( $page_num = 1; $page_num <= $total_pages; $page_num++ ) :
903 if ( $page == $page_num ) :
904 $r .= "<strong>$page_num</strong>\n";
907 if ( $page_num < 3 || ( $page_num >= $page - 3 && $page_num <= $page + 3 ) || $page_num > $total_pages - 3 ) :
908 $args['apage'] = ( 1 == $page_num ) ? '' : $page_num;
909 $r .= '<a class="page-numbers" href="' . clean_url(add_query_arg($args)) . '">' . ( $page_num ) . "</a>\n";
911 elseif ( $in == true ) :
918 if ( ( $page ) * 50 < $total || -1 == $total ) {
919 $args['apage'] = $page + 1;
920 $r .= '<a class="next" href="' . clean_url(add_query_arg($args)) . '">'. __('Next Page »') .'</a>' . "\n";
926 <input type="submit" name="submit" value="<?php echo attribute_escape(__('De-spam marked comments »')); ?>" />
928 <p><?php _e('Comments you de-spam will be submitted to Akismet as mistakes so it can learn and get better.'); ?></p>
933 <p><?php _e('No results found.'); ?></p>
936 <?php if ( !isset( $_POST['s'] ) ) { ?>
937 <form method="post" action="<?php echo attribute_escape( add_query_arg( 'noheader', 'true' ) ); ?>">
938 <?php akismet_nonce_field($akismet_nonce) ?>
939 <p><input type="hidden" name="action" value="delete" />
940 <?php printf(__('There are currently %1$s comments identified as spam.'), $spam_count); ?> <input type="submit" name="Submit" class="button" value="<?php echo attribute_escape(__('Delete all')); ?>" />
941 <input type="hidden" name="display_time" value="<?php echo current_time('mysql', 1); ?>" /></p>
949 add_action('admin_menu', 'akismet_manage_page');
952 function akismet_stats() {
953 if ( !function_exists('did_action') || did_action( 'rightnow_end' ) ) // We already displayed this info in the "Right Now" section
955 if ( !$count = get_option('akismet_spam_count') )
957 $path = plugin_basename(__FILE__);
958 echo '<h3>'.__('Spam').'</h3>';
960 if ( isset( $submenu['edit-comments.php'] ) )
961 $link = 'edit-comments.php';
964 echo '<p>'.sprintf(__('<a href="%1$s">Akismet</a> has protected your site from <a href="%2$s">%3$s spam comments</a>.'), 'http://akismet.com/', clean_url("$link?page=akismet-admin"), number_format_i18n($count) ).'</p>';
967 add_action('activity_box_end', 'akismet_stats');
970 function akismet_rightnow() {
971 global $submenu, $wp_db_version;
973 if ( 8645 < $wp_db_version ) // 2.7
974 $link = 'edit-comments.php?comment_status=spam';
975 elseif ( isset( $submenu['edit-comments.php'] ) )
976 $link = 'edit-comments.php?page=akismet-admin';
978 $link = 'edit.php?page=akismet-admin';
980 if ( $count = get_option('akismet_spam_count') ) {
981 $intro = sprintf( __ngettext(
982 '<a href="%1$s">Akismet</a> has protected your site from %2$s spam comment already,',
983 '<a href="%1$s">Akismet</a> has protected your site from %2$s spam comments already,',
985 ), 'http://akismet.com/', number_format_i18n( $count ) );
987 $intro = sprintf( __('<a href="%1$s">Akismet</a> blocks spam from getting to your blog,'), 'http://akismet.com/' );
990 if ( $queue_count = akismet_spam_count() ) {
991 $queue_text = sprintf( __ngettext(
992 'and there\'s <a href="%2$s">%1$s comment</a> in your spam queue right now.',
993 'and there are <a href="%2$s">%1$s comments</a> in your spam queue right now.',
995 ), number_format_i18n( $queue_count ), clean_url($link) );
997 $queue_text = sprintf( __( "but there's nothing in your <a href='%1\$s'>spam queue</a> at the moment." ), clean_url($link) );
1000 $text = sprintf( _c( '%1$s %2$s|akismet_rightnow' ), $intro, $queue_text );
1002 echo "<p class='akismet-right-now'>$text</p>\n";
1005 add_action('rightnow_end', 'akismet_rightnow');
1010 if ( 'moderation.php' == $pagenow ) {
1011 function akismet_recheck_button( $page ) {
1013 if ( isset( $submenu['edit-comments.php'] ) )
1014 $link = 'edit-comments.php';
1017 $button = "<a href='$link?page=akismet-admin&recheckqueue=true&noheader=true' style='display: block; width: 100px; position: absolute; right: 7%; padding: 5px; font-size: 14px; text-decoration: underline; background: #fff; border: 1px solid #ccc;'>" . __('Recheck Queue for Spam') . "</a>";
1018 $page = str_replace( '<div class="wrap">', '<div class="wrap">' . $button, $page );
1022 if ( $wpdb->get_var( "SELECT COUNT(*) FROM $wpdb->comments WHERE comment_approved = '0'" ) )
1023 ob_start( 'akismet_recheck_button' );
1027 function akismet_check_for_spam_button($comment_status) {
1028 if ( 'approved' == $comment_status )
1030 if ( function_exists('plugins_url') )
1031 $link = 'admin.php?action=akismet_recheck_queue';
1033 $link = 'edit-comments.php?page=akismet-admin&recheckqueue=true&noheader=true';
1034 echo "</div><div class='alignleft'><a class='button-secondary checkforspam' href='$link'>" . __('Check for Spam') . "</a>";
1036 add_action('manage_comments_nav', 'akismet_check_for_spam_button');
1038 function akismet_recheck_queue() {
1039 global $wpdb, $akismet_api_host, $akismet_api_port;
1041 if ( ! ( isset( $_GET['recheckqueue'] ) || ( isset( $_REQUEST['action'] ) && 'akismet_recheck_queue' == $_REQUEST['action'] ) ) )
1044 $moderation = $wpdb->get_results( "SELECT * FROM $wpdb->comments WHERE comment_approved = '0'", ARRAY_A );
1045 foreach ( (array) $moderation as $c ) {
1046 $c['user_ip'] = $c['comment_author_IP'];
1047 $c['user_agent'] = $c['comment_agent'];
1048 $c['referrer'] = '';
1049 $c['blog'] = get_option('home');
1050 $c['blog_lang'] = get_locale();
1051 $c['blog_charset'] = get_option('blog_charset');
1052 $c['permalink'] = get_permalink($c['comment_post_ID']);
1053 $c['user_role'] = akismet_get_user_roles($c['user_ID']);
1054 $id = (int) $c['comment_ID'];
1057 foreach ( $c as $key => $data )
1058 $query_string .= $key . '=' . urlencode( stripslashes($data) ) . '&';
1060 $response = akismet_http_post($query_string, $akismet_api_host, '/1.1/comment-check', $akismet_api_port);
1061 if ( 'true' == $response[1] ) {
1062 $wpdb->query( "UPDATE $wpdb->comments SET comment_approved = 'spam' WHERE comment_ID = $id" );
1065 wp_redirect( $_SERVER['HTTP_REFERER'] );
1069 add_action('admin_action_akismet_recheck_queue', 'akismet_recheck_queue');
1071 function akismet_check_db_comment( $id ) {
1072 global $wpdb, $akismet_api_host, $akismet_api_port;
1075 $c = $wpdb->get_row( "SELECT * FROM $wpdb->comments WHERE comment_ID = '$id'", ARRAY_A );
1079 $c['user_ip'] = $c['comment_author_IP'];
1080 $c['user_agent'] = $c['comment_agent'];
1081 $c['referrer'] = '';
1082 $c['blog'] = get_option('home');
1083 $c['blog_lang'] = get_locale();
1084 $c['blog_charset'] = get_option('blog_charset');
1085 $c['permalink'] = get_permalink($c['comment_post_ID']);
1086 $id = $c['comment_ID'];
1089 foreach ( $c as $key => $data )
1090 $query_string .= $key . '=' . urlencode( stripslashes($data) ) . '&';
1092 $response = akismet_http_post($query_string, $akismet_api_host, '/1.1/comment-check', $akismet_api_port);
1093 return $response[1];
1096 // This option causes tons of FPs, was removed in 2.1
1097 function akismet_kill_proxy_check( $option ) { return 0; }
1098 add_filter('option_open_proxy_check', 'akismet_kill_proxy_check');
1101 function widget_akismet_register() {
1102 if ( function_exists('register_sidebar_widget') ) :
1103 function widget_akismet($args) {
1105 $options = get_option('widget_akismet');
1106 $count = number_format_i18n(get_option('akismet_spam_count'));
1108 <?php echo $before_widget; ?>
1109 <?php echo $before_title . $options['title'] . $after_title; ?>
1110 <div id="akismetwrap"><div id="akismetstats"><a id="aka" href="http://akismet.com" title=""><?php printf( __( '%1$s %2$sspam comments%3$s %4$sblocked by%5$s<br />%6$sAkismet%7$s' ), '<span id="akismet1"><span id="akismetcount">' . $count . '</span>', '<span id="akismetsc">', '</span></span>', '<span id="akismet2"><span id="akismetbb">', '</span>', '<span id="akismeta">', '</span></span>' ); ?></a></div></div>
1111 <?php echo $after_widget; ?>
1115 function widget_akismet_style() {
1117 <style type="text/css">
1118 #aka,#aka:link,#aka:hover,#aka:visited,#aka:active{color:#fff;text-decoration:none}
1119 #aka:hover{border:none;text-decoration:none}
1120 #aka:hover #akismet1{display:none}
1121 #aka:hover #akismet2,#akismet1{display:block}
1122 #akismet2{display:none;padding-top:2px}
1123 #akismeta{font-size:16px;font-weight:bold;line-height:18px;text-decoration:none}
1124 #akismetcount{display:block;font:15px Verdana,Arial,Sans-Serif;font-weight:bold;text-decoration:none}
1125 #akismetwrap #akismetstats{background:url(<?php echo get_option('siteurl'); ?>/wp-content/plugins/akismet/akismet.gif) no-repeat top left;border:none;color:#fff;font:11px 'Trebuchet MS','Myriad Pro',sans-serif;height:40px;line-height:100%;overflow:hidden;padding:8px 0 0;text-align:center;width:120px}
1130 function widget_akismet_control() {
1131 $options = $newoptions = get_option('widget_akismet');
1132 if ( $_POST["akismet-submit"] ) {
1133 $newoptions['title'] = strip_tags(stripslashes($_POST["akismet-title"]));
1134 if ( empty($newoptions['title']) ) $newoptions['title'] = __('Spam Blocked');
1136 if ( $options != $newoptions ) {
1137 $options = $newoptions;
1138 update_option('widget_akismet', $options);
1140 $title = htmlspecialchars($options['title'], ENT_QUOTES);
1142 <p><label for="akismet-title"><?php _e('Title:'); ?> <input style="width: 250px;" id="akismet-title" name="akismet-title" type="text" value="<?php echo $title; ?>" /></label></p>
1143 <input type="hidden" id="akismet-submit" name="akismet-submit" value="1" />
1147 register_sidebar_widget('Akismet', 'widget_akismet', null, 'akismet');
1148 register_widget_control('Akismet', 'widget_akismet_control', null, 75, 'akismet');
1149 if ( is_active_widget('widget_akismet') )
1150 add_action('wp_head', 'widget_akismet_style');
1154 add_action('init', 'widget_akismet_register');
1156 // Counter for non-widget users
1157 function akismet_counter() {
1159 <style type="text/css">
1160 #akismetwrap #aka,#aka:link,#aka:hover,#aka:visited,#aka:active{color:#fff;text-decoration:none}
1161 #aka:hover{border:none;text-decoration:none}
1162 #aka:hover #akismet1{display:none}
1163 #aka:hover #akismet2,#akismet1{display:block}
1164 #akismet2{display:none;padding-top:2px}
1165 #akismeta{font-size:16px;font-weight:bold;line-height:18px;text-decoration:none}
1166 #akismetcount{display:block;font:15px Verdana,Arial,Sans-Serif;font-weight:bold;text-decoration:none}
1167 #akismetwrap #akismetstats{background:url(<?php echo get_option('siteurl'); ?>/wp-content/plugins/akismet/akismet.gif) no-repeat top left;border:none;color:#fff;font:11px 'Trebuchet MS','Myriad Pro',sans-serif;height:40px;line-height:100%;overflow:hidden;padding:8px 0 0;text-align:center;width:120px}
1170 $count = number_format_i18n(get_option('akismet_spam_count'));
1172 <div id="akismetwrap"><div id="akismetstats"><a id="aka" href="http://akismet.com" title=""><div id="akismet1"><span id="akismetcount"><?php echo $count; ?></span> <span id="akismetsc"><?php _e('spam comments') ?></span></div> <div id="akismet2"><span id="akismetbb"><?php _e('blocked by') ?></span><br /><span id="akismeta">Akismet</span></div></a></div></div>