4
const API_HOST = 'rest.akismet.com';
6
const MAX_DELAY_BEFORE_MODERATION_EMAIL = 86400; // One day in seconds
8
private static $last_comment = '';
9
private static $initiated = false;
10
private static $prevent_moderation_email_for_these_comments = array();
11
private static $last_comment_result = null;
13
public static function init() {
14
if ( ! self::$initiated ) {
20
* Initializes WordPress hooks
22
private static function init_hooks() {
23
self::$initiated = true;
25
add_action( 'wp_insert_comment', array( 'Akismet', 'auto_check_update_meta' ), 10, 2 );
26
add_action( 'preprocess_comment', array( 'Akismet', 'auto_check_comment' ), 1 );
27
add_action( 'akismet_scheduled_delete', array( 'Akismet', 'delete_old_comments' ) );
28
add_action( 'akismet_scheduled_delete', array( 'Akismet', 'delete_old_comments_meta' ) );
29
add_action( 'akismet_schedule_cron_recheck', array( 'Akismet', 'cron_recheck' ) );
31
$akismet_comment_nonce_option = apply_filters( 'akismet_comment_nonce', get_option( 'akismet_comment_nonce' ) );
33
if ( $akismet_comment_nonce_option == 'true' || $akismet_comment_nonce_option == '' )
34
add_action( 'comment_form', array( 'Akismet', 'add_comment_nonce' ), 1 );
36
add_action( 'admin_head-edit-comments.php', array( 'Akismet', 'load_form_js' ) );
37
add_action( 'comment_form', array( 'Akismet', 'load_form_js' ) );
38
add_action( 'comment_form', array( 'Akismet', 'inject_ak_js' ) );
40
add_filter( 'comment_moderation_recipients', array( 'Akismet', 'disable_moderation_emails_if_unreachable' ), 1000, 2 );
41
add_filter( 'pre_comment_approved', array( 'Akismet', 'last_comment_status' ), 10, 2 );
43
add_action( 'transition_comment_status', array( 'Akismet', 'transition_comment_status' ), 10, 3 );
45
if ( '3.0.5' == $GLOBALS['wp_version'] ) {
46
remove_filter( 'comment_text', 'wp_kses_data' );
48
add_filter( 'comment_text', 'wp_kses_post' );
52
public static function get_api_key() {
53
return apply_filters( 'akismet_get_api_key', defined('WPCOM_API_KEY') ? constant('WPCOM_API_KEY') : get_option('wordpress_api_key') );
56
public static function check_key_status( $key, $ip = null ) {
57
return self::http_post( Akismet::build_query( array( 'key' => $key, 'blog' => get_option('home') ) ), 'verify-key', $ip );
60
public static function verify_key( $key, $ip = null ) {
61
$response = self::check_key_status( $key, $ip );
63
if ( $response[1] != 'valid' && $response[1] != 'invalid' )
66
self::update_alert( $response );
71
public static function auto_check_comment( $commentdata ) {
72
self::$last_comment_result = null;
74
$comment = $commentdata;
76
$comment['user_ip'] = self::get_ip_address();
77
$comment['user_agent'] = self::get_user_agent();
78
$comment['referrer'] = self::get_referer();
79
$comment['blog'] = get_option('home');
80
$comment['blog_lang'] = get_locale();
81
$comment['blog_charset'] = get_option('blog_charset');
82
$comment['permalink'] = get_permalink( $comment['comment_post_ID'] );
84
if ( !empty( $comment['user_ID'] ) )
85
$comment['user_role'] = Akismet::get_user_roles( $comment['user_ID'] );
87
$akismet_nonce_option = apply_filters( 'akismet_comment_nonce', get_option( 'akismet_comment_nonce' ) );
88
$comment['akismet_comment_nonce'] = 'inactive';
89
if ( $akismet_nonce_option == 'true' || $akismet_nonce_option == '' ) {
90
$comment['akismet_comment_nonce'] = 'failed';
91
if ( isset( $_POST['akismet_comment_nonce'] ) && wp_verify_nonce( $_POST['akismet_comment_nonce'], 'akismet_comment_nonce_' . $comment['comment_post_ID'] ) )
92
$comment['akismet_comment_nonce'] = 'passed';
94
// comment reply in wp-admin
95
if ( isset( $_POST['_ajax_nonce-replyto-comment'] ) && check_ajax_referer( 'replyto-comment', '_ajax_nonce-replyto-comment' ) )
96
$comment['akismet_comment_nonce'] = 'passed';
100
if ( self::is_test_mode() )
101
$comment['is_test'] = 'true';
103
foreach( $_POST as $key => $value ) {
104
if ( is_string( $value ) )
105
$comment["POST_{$key}"] = $value;
108
$ignore = array( 'HTTP_COOKIE', 'HTTP_COOKIE2', 'PHP_AUTH_PW' );
110
foreach ( $_SERVER as $key => $value ) {
111
if ( !in_array( $key, $ignore ) && is_string($value) )
112
$comment["$key"] = $value;
114
$comment["$key"] = '';
117
$post = get_post( $comment['comment_post_ID'] );
118
$comment[ 'comment_post_modified_gmt' ] = $post->post_modified_gmt;
120
$response = self::http_post( Akismet::build_query( $comment ), 'comment-check' );
122
do_action( 'akismet_comment_check_response', $response );
124
self::update_alert( $response );
126
$commentdata['comment_as_submitted'] = array_intersect_key( $comment, array( 'blog' => '', 'blog_charset' => '', 'blog_lang' => '', 'blog_ua' => '', 'comment_agent' => '', 'comment_author' => '', 'comment_author_IP' => '', 'comment_author_email' => '', 'comment_author_url' => '', 'comment_content' => '', 'comment_date_gmt' => '', 'comment_tags' => '', 'comment_type' => '', 'guid' => '', 'is_test' => '', 'permalink' => '', 'reporter' => '', 'site_domain' => '', 'submit_referer' => '', 'submit_uri' => '', 'user_ID' => '', 'user_agent' => '', 'user_id' => '', 'user_ip' => '' ) );
127
$commentdata['akismet_result'] = $response[1];
129
if ( isset( $response[0]['x-akismet-pro-tip'] ) )
130
$commentdata['akismet_pro_tip'] = $response[0]['x-akismet-pro-tip'];
132
if ( isset( $response[0]['x-akismet-error'] ) ) {
133
// An error occurred that we anticipated (like a suspended key) and want the user to act on.
134
// Send to moderation.
135
self::$last_comment_result = '0';
137
else if ( 'true' == $response[1] ) {
138
// akismet_spam_count will be incremented later by comment_is_spam()
139
self::$last_comment_result = 'spam';
141
$discard = ( isset( $commentdata['akismet_pro_tip'] ) && $commentdata['akismet_pro_tip'] === 'discard' && self::allow_discard() );
143
do_action( 'akismet_spam_caught', $discard );
146
// akismet_result_spam() won't be called so bump the counter here
147
if ( $incr = apply_filters('akismet_spam_count_incr', 1) )
148
update_option( 'akismet_spam_count', get_option('akismet_spam_count') + $incr );
149
$redirect_to = isset( $_SERVER['HTTP_REFERER'] ) ? $_SERVER['HTTP_REFERER'] : get_permalink( $post );
150
wp_safe_redirect( esc_url_raw( $redirect_to ) );
155
// if the response is neither true nor false, hold the comment for moderation and schedule a recheck
156
if ( 'true' != $response[1] && 'false' != $response[1] ) {
157
if ( !current_user_can('moderate_comments') ) {
158
// Comment status should be moderated
159
self::$last_comment_result = '0';
161
if ( function_exists('wp_next_scheduled') && function_exists('wp_schedule_single_event') ) {
162
if ( !wp_next_scheduled( 'akismet_schedule_cron_recheck' ) ) {
163
wp_schedule_single_event( time() + 1200, 'akismet_schedule_cron_recheck' );
167
self::$prevent_moderation_email_for_these_comments[] = $commentdata;
170
if ( function_exists('wp_next_scheduled') && function_exists('wp_schedule_event') ) {
171
// WP 2.1+: delete old comments daily
172
if ( !wp_next_scheduled( 'akismet_scheduled_delete' ) )
173
wp_schedule_event( time(), 'daily', 'akismet_scheduled_delete' );
175
elseif ( (mt_rand(1, 10) == 3) ) {
176
// WP 2.0: run this one time in ten
177
self::delete_old_comments();
180
self::set_last_comment( $commentdata );
181
self::fix_scheduled_recheck();
183
return self::$last_comment;
186
public static function get_last_comment() {
187
return self::$last_comment;
190
public static function set_last_comment( $comment ) {
191
if ( is_null( $comment ) ) {
192
self::$last_comment = null;
195
// We filter it here so that it matches the filtered comment data that we'll have to compare against later.
196
// wp_filter_comment expects comment_author_IP
197
self::$last_comment = wp_filter_comment(
199
array( 'comment_author_IP' => self::get_ip_address() ),
206
// this fires on wp_insert_comment. we can't update comment_meta when auto_check_comment() runs
207
// because we don't know the comment ID at that point.
208
public static function auto_check_update_meta( $id, $comment ) {
210
// failsafe for old WP versions
211
if ( !function_exists('add_comment_meta') )
214
if ( !isset( self::$last_comment['comment_author_email'] ) )
215
self::$last_comment['comment_author_email'] = '';
217
// wp_insert_comment() might be called in other contexts, so make sure this is the same comment
218
// as was checked by auto_check_comment
219
if ( is_object( $comment ) && !empty( self::$last_comment ) && is_array( self::$last_comment ) ) {
220
if ( self::matches_last_comment( $comment ) ) {
222
load_plugin_textdomain( 'akismet' );
224
// normal result: true or false
225
if ( self::$last_comment['akismet_result'] == 'true' ) {
226
update_comment_meta( $comment->comment_ID, 'akismet_result', 'true' );
227
self::update_comment_history( $comment->comment_ID, __('Akismet caught this comment as spam', 'akismet'), 'check-spam' );
228
if ( $comment->comment_approved != 'spam' )
229
self::update_comment_history( $comment->comment_ID, sprintf( __('Comment status was changed to %s', 'akismet'), $comment->comment_approved), 'status-changed'.$comment->comment_approved );
231
elseif ( self::$last_comment['akismet_result'] == 'false' ) {
232
update_comment_meta( $comment->comment_ID, 'akismet_result', 'false' );
233
self::update_comment_history( $comment->comment_ID, __('Akismet cleared this comment', 'akismet'), 'check-ham' );
234
if ( $comment->comment_approved == 'spam' ) {
235
if ( wp_blacklist_check($comment->comment_author, $comment->comment_author_email, $comment->comment_author_url, $comment->comment_content, $comment->comment_author_IP, $comment->comment_agent) )
236
self::update_comment_history( $comment->comment_ID, __('Comment was caught by wp_blacklist_check', 'akismet'), 'wp-blacklisted' );
238
self::update_comment_history( $comment->comment_ID, sprintf( __('Comment status was changed to %s', 'akismet'), $comment->comment_approved), 'status-changed-'.$comment->comment_approved );
240
} // abnormal result: error
242
update_comment_meta( $comment->comment_ID, 'akismet_error', time() );
243
self::update_comment_history( $comment->comment_ID, sprintf( __('Akismet was unable to check this comment (response: %s), will automatically retry again later.', 'akismet'), substr(self::$last_comment['akismet_result'], 0, 50)), 'check-error' );
246
// record the complete original data as submitted for checking
247
if ( isset( self::$last_comment['comment_as_submitted'] ) )
248
update_comment_meta( $comment->comment_ID, 'akismet_as_submitted', self::$last_comment['comment_as_submitted'] );
250
if ( isset( self::$last_comment['akismet_pro_tip'] ) )
251
update_comment_meta( $comment->comment_ID, 'akismet_pro_tip', self::$last_comment['akismet_pro_tip'] );
256
public static function delete_old_comments() {
259
while( $comment_ids = $wpdb->get_col( $wpdb->prepare( "SELECT comment_id FROM {$wpdb->comments} WHERE DATE_SUB(NOW(), INTERVAL 15 DAY) > comment_date_gmt AND comment_approved = 'spam' LIMIT %d", defined( 'AKISMET_DELETE_LIMIT' ) ? AKISMET_DELETE_LIMIT : 10000 ) ) ) {
260
if ( empty( $comment_ids ) )
263
$wpdb->queries = array();
265
do_action( 'delete_comment', $comment_ids );
267
$comma_comment_ids = implode( ', ', array_map('intval', $comment_ids) );
269
$wpdb->query("DELETE FROM {$wpdb->comments} WHERE comment_id IN ( $comma_comment_ids )");
270
$wpdb->query("DELETE FROM {$wpdb->commentmeta} WHERE comment_id IN ( $comma_comment_ids )");
272
clean_comment_cache( $comment_ids );
275
if ( apply_filters( 'akismet_optimize_table', ( mt_rand(1, 5000) == 11), $wpdb->comments ) ) // lucky number
276
$wpdb->query("OPTIMIZE TABLE {$wpdb->comments}");
279
public static function delete_old_comments_meta() {
282
$interval = apply_filters( 'akismet_delete_commentmeta_interval', 15 );
284
# enfore a minimum of 1 day
285
$interval = absint( $interval );
289
// akismet_as_submitted meta values are large, so expire them
290
// after $interval days regardless of the comment status
291
while ( $comment_ids = $wpdb->get_col( $wpdb->prepare( "SELECT m.comment_id FROM {$wpdb->commentmeta} as m INNER JOIN {$wpdb->comments} as c USING(comment_id) WHERE m.meta_key = 'akismet_as_submitted' AND DATE_SUB(NOW(), INTERVAL %d DAY) > c.comment_date_gmt LIMIT 10000", $interval ) ) ) {
292
if ( empty( $comment_ids ) )
295
$wpdb->queries = array();
297
foreach ( $comment_ids as $comment_id ) {
298
delete_comment_meta( $comment_id, 'akismet_as_submitted' );
302
if ( apply_filters( 'akismet_optimize_table', ( mt_rand(1, 5000) == 11), $wpdb->commentmeta ) ) // lucky number
303
$wpdb->query("OPTIMIZE TABLE {$wpdb->commentmeta}");
306
// how many approved comments does this author have?
307
public static function get_user_comments_approved( $user_id, $comment_author_email, $comment_author, $comment_author_url ) {
310
if ( !empty( $user_id ) )
311
return (int) $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM {$wpdb->comments} WHERE user_id = %d AND comment_approved = 1", $user_id ) );
313
if ( !empty( $comment_author_email ) )
314
return (int) $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM {$wpdb->comments} WHERE comment_author_email = %s AND comment_author = %s AND comment_author_url = %s AND comment_approved = 1", $comment_author_email, $comment_author, $comment_author_url ) );
319
// get the full comment history for a given comment, as an array in reverse chronological order
320
public static function get_comment_history( $comment_id ) {
322
// failsafe for old WP versions
323
if ( !function_exists('add_comment_meta') )
326
$history = get_comment_meta( $comment_id, 'akismet_history', false );
327
usort( $history, array( 'Akismet', '_cmp_time' ) );
331
// log an event for a given comment, storing it in comment_meta
332
public static function update_comment_history( $comment_id, $message, $event=null ) {
333
global $current_user;
335
// failsafe for old WP versions
336
if ( !function_exists('add_comment_meta') )
340
if ( is_object( $current_user ) && isset( $current_user->user_login ) )
341
$user = $current_user->user_login;
344
'time' => self::_get_microtime(),
345
'message' => $message,
350
// $unique = false so as to allow multiple values per comment
351
$r = add_comment_meta( $comment_id, 'akismet_history', $event, false );
354
public static function check_db_comment( $id, $recheck_reason = 'recheck_queue' ) {
357
$c = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM {$wpdb->comments} WHERE comment_ID = %d", $id ), ARRAY_A );
361
$c['user_ip'] = $c['comment_author_IP'];
362
$c['user_agent'] = $c['comment_agent'];
364
$c['blog'] = get_option('home');
365
$c['blog_lang'] = get_locale();
366
$c['blog_charset'] = get_option('blog_charset');
367
$c['permalink'] = get_permalink($c['comment_post_ID']);
368
$c['recheck_reason'] = $recheck_reason;
370
if ( self::is_test_mode() )
371
$c['is_test'] = 'true';
373
$response = self::http_post( Akismet::build_query( $c ), 'comment-check' );
375
return ( is_array( $response ) && ! empty( $response[1] ) ) ? $response[1] : false;
380
public static function transition_comment_status( $new_status, $old_status, $comment ) {
382
if ( $new_status == $old_status )
385
# we don't need to record a history item for deleted comments
386
if ( $new_status == 'delete' )
389
if ( !current_user_can( 'edit_post', $comment->comment_post_ID ) && !current_user_can( 'moderate_comments' ) )
392
if ( defined('WP_IMPORTING') && WP_IMPORTING == true )
395
// if this is present, it means the status has been changed by a re-check, not an explicit user action
396
if ( get_comment_meta( $comment->comment_ID, 'akismet_rechecking' ) )
399
global $current_user;
401
if ( is_object( $current_user ) )
402
$reporter = $current_user->user_login;
405
// We want to submit comments to Akismet only when a moderator explicitly spams or approves it - not if the status
406
// is changed automatically by another plugin. Unfortunately WordPress doesn't provide an unambiguous way to
407
// determine why the transition_comment_status action was triggered. And there are several different ways by which
408
// to spam and unspam comments: bulk actions, ajax, links in moderation emails, the dashboard, and perhaps others.
409
// We'll assume that this is an explicit user action if certain POST/GET variables exist.
410
if ( ( isset( $_POST['status'] ) && in_array( $_POST['status'], array( 'spam', 'unspam' ) ) ) ||
411
( isset( $_POST['spam'] ) && (int) $_POST['spam'] == 1 ) ||
412
( isset( $_POST['unspam'] ) && (int) $_POST['unspam'] == 1 ) ||
413
( isset( $_POST['comment_status'] ) && in_array( $_POST['comment_status'], array( 'spam', 'unspam' ) ) ) ||
414
( isset( $_GET['action'] ) && in_array( $_GET['action'], array( 'spam', 'unspam' ) ) ) ||
415
( isset( $_POST['action'] ) && in_array( $_POST['action'], array( 'editedcomment' ) ) )
417
if ( $new_status == 'spam' && ( $old_status == 'approved' || $old_status == 'unapproved' || !$old_status ) ) {
418
return self::submit_spam_comment( $comment->comment_ID );
419
} elseif ( $old_status == 'spam' && ( $new_status == 'approved' || $new_status == 'unapproved' ) ) {
420
return self::submit_nonspam_comment( $comment->comment_ID );
424
self::update_comment_history( $comment->comment_ID, sprintf( __('%1$s changed the comment status to %2$s', 'akismet'), $reporter, $new_status ), 'status-' . $new_status );
427
public static function submit_spam_comment( $comment_id ) {
428
global $wpdb, $current_user, $current_site;
430
$comment_id = (int) $comment_id;
432
$comment = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM {$wpdb->comments} WHERE comment_ID = %d", $comment_id ) );
434
if ( !$comment ) // it was deleted
437
if ( 'spam' != $comment->comment_approved )
440
// use the original version stored in comment_meta if available
441
$as_submitted = get_comment_meta( $comment_id, 'akismet_as_submitted', true);
443
if ( $as_submitted && is_array( $as_submitted ) && isset( $as_submitted['comment_content'] ) )
444
$comment = (object) array_merge( (array)$comment, $as_submitted );
446
$comment->blog = get_bloginfo('url');
447
$comment->blog_lang = get_locale();
448
$comment->blog_charset = get_option('blog_charset');
449
$comment->permalink = get_permalink($comment->comment_post_ID);
451
if ( is_object($current_user) )
452
$comment->reporter = $current_user->user_login;
454
if ( is_object($current_site) )
455
$comment->site_domain = $current_site->domain;
457
$comment->user_role = '';
458
if ( isset( $comment->user_ID ) )
459
$comment->user_role = Akismet::get_user_roles( $comment->user_ID );
461
if ( self::is_test_mode() )
462
$comment->is_test = 'true';
464
$post = get_post( $comment->comment_post_ID );
465
$comment->comment_post_modified_gmt = $post->post_modified_gmt;
467
$response = Akismet::http_post( Akismet::build_query( $comment ), 'submit-spam' );
468
if ( $comment->reporter ) {
469
self::update_comment_history( $comment_id, sprintf( __('%s reported this comment as spam', 'akismet'), $comment->reporter ), 'report-spam' );
470
update_comment_meta( $comment_id, 'akismet_user_result', 'true' );
471
update_comment_meta( $comment_id, 'akismet_user', $comment->reporter );
474
do_action('akismet_submit_spam_comment', $comment_id, $response[1]);
477
public static function submit_nonspam_comment( $comment_id ) {
478
global $wpdb, $current_user, $current_site;
480
$comment_id = (int) $comment_id;
482
$comment = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM {$wpdb->comments} WHERE comment_ID = %d", $comment_id ) );
483
if ( !$comment ) // it was deleted
486
// use the original version stored in comment_meta if available
487
$as_submitted = get_comment_meta( $comment_id, 'akismet_as_submitted', true);
489
if ( $as_submitted && is_array($as_submitted) && isset($as_submitted['comment_content']) )
490
$comment = (object) array_merge( (array)$comment, $as_submitted );
492
$comment->blog = get_bloginfo('url');
493
$comment->blog_lang = get_locale();
494
$comment->blog_charset = get_option('blog_charset');
495
$comment->permalink = get_permalink( $comment->comment_post_ID );
496
$comment->user_role = '';
498
if ( is_object($current_user) )
499
$comment->reporter = $current_user->user_login;
501
if ( is_object($current_site) )
502
$comment->site_domain = $current_site->domain;
504
if ( isset( $comment->user_ID ) )
505
$comment->user_role = Akismet::get_user_roles($comment->user_ID);
507
if ( Akismet::is_test_mode() )
508
$comment->is_test = 'true';
510
$post = get_post( $comment->comment_post_ID );
511
$comment->comment_post_modified_gmt = $post->post_modified_gmt;
513
$response = self::http_post( Akismet::build_query( $comment ), 'submit-ham' );
514
if ( $comment->reporter ) {
515
self::update_comment_history( $comment_id, sprintf( __('%s reported this comment as not spam', 'akismet'), $comment->reporter ), 'report-ham' );
516
update_comment_meta( $comment_id, 'akismet_user_result', 'false' );
517
update_comment_meta( $comment_id, 'akismet_user', $comment->reporter );
520
do_action('akismet_submit_nonspam_comment', $comment_id, $response[1]);
523
public static function cron_recheck() {
526
$api_key = self::get_api_key();
528
$status = self::verify_key( $api_key );
529
if ( get_option( 'akismet_alert_code' ) || $status == 'invalid' ) {
530
// since there is currently a problem with the key, reschedule a check for 6 hours hence
531
wp_schedule_single_event( time() + 21600, 'akismet_schedule_cron_recheck' );
535
delete_option('akismet_available_servers');
537
$comment_errors = $wpdb->get_col( "SELECT comment_id FROM {$wpdb->commentmeta} WHERE meta_key = 'akismet_error' LIMIT 100" );
539
load_plugin_textdomain( 'akismet' );
541
foreach ( (array) $comment_errors as $comment_id ) {
542
// if the comment no longer exists, or is too old, remove the meta entry from the queue to avoid getting stuck
543
$comment = get_comment( $comment_id );
544
if ( !$comment || strtotime( $comment->comment_date_gmt ) < strtotime( "-15 days" ) ) {
545
delete_comment_meta( $comment_id, 'akismet_error' );
546
delete_comment_meta( $comment_id, 'akismet_delayed_moderation_email' );
550
add_comment_meta( $comment_id, 'akismet_rechecking', true );
551
$status = self::check_db_comment( $comment_id, 'retry' );
554
if ( $status == 'true' ) {
555
$msg = __( 'Akismet caught this comment as spam during an automatic retry.' , 'akismet');
556
} elseif ( $status == 'false' ) {
557
$msg = __( 'Akismet cleared this comment during an automatic retry.' , 'akismet');
560
// If we got back a legit response then update the comment history
561
// other wise just bail now and try again later. No point in
562
// re-trying all the comments once we hit one failure.
563
if ( !empty( $msg ) ) {
564
delete_comment_meta( $comment_id, 'akismet_error' );
565
self::update_comment_history( $comment_id, $msg, 'cron-retry' );
566
update_comment_meta( $comment_id, 'akismet_result', $status );
567
// make sure the comment status is still pending. if it isn't, that means the user has already moved it elsewhere.
568
$comment = get_comment( $comment_id );
569
if ( $comment && 'unapproved' == wp_get_comment_status( $comment_id ) ) {
570
if ( $status == 'true' ) {
571
wp_spam_comment( $comment_id );
572
} elseif ( $status == 'false' ) {
573
// comment is good, but it's still in the pending queue. depending on the moderation settings
574
// we may need to change it to approved.
575
if ( check_comment($comment->comment_author, $comment->comment_author_email, $comment->comment_author_url, $comment->comment_content, $comment->comment_author_IP, $comment->comment_agent, $comment->comment_type) )
576
wp_set_comment_status( $comment_id, 1 );
577
else if ( get_comment_meta( $comment_id, 'akismet_delayed_moderation_email', true ) )
578
wp_notify_moderator( $comment_id );
582
delete_comment_meta( $comment_id, 'akismet_delayed_moderation_email' );
584
// If this comment has been pending moderation for longer than MAX_DELAY_BEFORE_MODERATION_EMAIL,
585
// send a moderation email now.
586
if ( ( intval( gmdate( 'U' ) ) - strtotime( $comment->comment_date_gmt ) ) < self::MAX_DELAY_BEFORE_MODERATION_EMAIL ) {
587
delete_comment_meta( $comment_id, 'akismet_delayed_moderation_email' );
588
wp_notify_moderator( $comment_id );
591
delete_comment_meta( $comment_id, 'akismet_rechecking' );
592
wp_schedule_single_event( time() + 1200, 'akismet_schedule_cron_recheck' );
595
delete_comment_meta( $comment_id, 'akismet_rechecking' );
598
$remaining = $wpdb->get_var( "SELECT COUNT(*) FROM {$wpdb->commentmeta} WHERE meta_key = 'akismet_error'" );
599
if ( $remaining && !wp_next_scheduled('akismet_schedule_cron_recheck') ) {
600
wp_schedule_single_event( time() + 1200, 'akismet_schedule_cron_recheck' );
604
public static function fix_scheduled_recheck() {
605
$future_check = wp_next_scheduled( 'akismet_schedule_cron_recheck' );
606
if ( !$future_check ) {
610
if ( get_option( 'akismet_alert_code' ) > 0 ) {
614
$check_range = time() + 1200;
615
if ( $future_check > $check_range ) {
616
wp_clear_scheduled_hook( 'akismet_schedule_cron_recheck' );
617
wp_schedule_single_event( time() + 300, 'akismet_schedule_cron_recheck' );
621
public static function add_comment_nonce( $post_id ) {
622
echo '<p style="display: none;">';
623
wp_nonce_field( 'akismet_comment_nonce_' . $post_id, 'akismet_comment_nonce', FALSE );
627
public static function is_test_mode() {
628
return defined('AKISMET_TEST_MODE') && AKISMET_TEST_MODE;
631
public static function allow_discard() {
632
if ( defined( 'DOING_AJAX' ) && DOING_AJAX )
634
if ( is_user_logged_in() )
637
return ( get_option( 'akismet_strictness' ) === '1' );
640
public static function get_ip_address() {
641
return isset( $_SERVER['REMOTE_ADDR'] ) ? $_SERVER['REMOTE_ADDR'] : null;
645
* Do these two comments, without checking the comment_ID, "match"?
647
* @param mixed $comment1 A comment object or array.
648
* @param mixed $comment2 A comment object or array.
649
* @return bool Whether the two comments should be treated as the same comment.
651
private static function comments_match( $comment1, $comment2 ) {
652
$comment1 = (array) $comment1;
653
$comment2 = (array) $comment2;
656
isset( $comment1['comment_post_ID'], $comment2['comment_post_ID'] )
657
&& intval( $comment1['comment_post_ID'] ) == intval( $comment2['comment_post_ID'] )
658
&& $comment1['comment_author'] == $comment2['comment_author']
659
&& $comment1['comment_author_email'] == $comment2['comment_author_email']
663
// Does the supplied comment match the details of the one most recently stored in self::$last_comment?
664
public static function matches_last_comment( $comment ) {
665
if ( is_object( $comment ) )
666
$comment = (array) $comment;
668
return self::comments_match( self::$last_comment, $comment );
671
private static function get_user_agent() {
672
return isset( $_SERVER['HTTP_USER_AGENT'] ) ? $_SERVER['HTTP_USER_AGENT'] : null;
675
private static function get_referer() {
676
return isset( $_SERVER['HTTP_REFERER'] ) ? $_SERVER['HTTP_REFERER'] : null;
679
// return a comma-separated list of role names for the given user
680
public static function get_user_roles( $user_id ) {
683
if ( !class_exists('WP_User') )
686
if ( $user_id > 0 ) {
687
$comment_user = new WP_User( $user_id );
688
if ( isset( $comment_user->roles ) )
689
$roles = join( ',', $comment_user->roles );
692
if ( is_multisite() && is_super_admin( $user_id ) ) {
693
if ( empty( $roles ) ) {
694
$roles = 'super_admin';
696
$comment_user->roles[] = 'super_admin';
697
$roles = join( ',', $comment_user->roles );
704
// filter handler used to return a spam result to pre_comment_approved
705
public static function last_comment_status( $approved, $comment ) {
706
// Only do this if it's the correct comment
707
if ( is_null(self::$last_comment_result) || ! self::matches_last_comment( $comment ) ) {
708
self::log( "comment_is_spam mismatched comment, returning unaltered $approved" );
712
// bump the counter here instead of when the filter is added to reduce the possibility of overcounting
713
if ( $incr = apply_filters('akismet_spam_count_incr', 1) )
714
update_option( 'akismet_spam_count', get_option('akismet_spam_count') + $incr );
716
return self::$last_comment_result;
720
* If Akismet is temporarily unreachable, we don't want to "spam" the blogger with
721
* moderation emails for comments that will be automatically cleared or spammed on
724
* For comments that will be rechecked later, empty the list of email addresses that
725
* the moderation email would be sent to.
727
* @param array $emails An array of email addresses that the moderation email will be sent to.
728
* @param int $comment_id The ID of the relevant comment.
729
* @return array An array of email addresses that the moderation email will be sent to.
731
public static function disable_moderation_emails_if_unreachable( $emails, $comment_id ) {
732
if ( ! empty( self::$prevent_moderation_email_for_these_comments ) && ! empty( $emails ) ) {
733
$comment = get_comment( $comment_id );
735
foreach ( self::$prevent_moderation_email_for_these_comments as $possible_match ) {
736
if ( self::comments_match( $possible_match, $comment ) ) {
737
update_comment_meta( $comment_id, 'akismet_delayed_moderation_email', true );
746
public static function _cmp_time( $a, $b ) {
747
return $a['time'] > $b['time'] ? -1 : 1;
750
public static function _get_microtime() {
751
$mtime = explode( ' ', microtime() );
752
return $mtime[1] + $mtime[0];
756
* Make a POST request to the Akismet API.
758
* @param string $request The body of the request.
759
* @param string $path The path for the request.
760
* @param string $ip The specific IP address to hit.
761
* @return array A two-member array consisting of the headers and the response body, both empty in the case of a failure.
763
public static function http_post( $request, $path, $ip=null ) {
765
$akismet_ua = sprintf( 'WordPress/%s | Akismet/%s', $GLOBALS['wp_version'], constant( 'AKISMET_VERSION' ) );
766
$akismet_ua = apply_filters( 'akismet_ua', $akismet_ua );
768
$content_length = strlen( $request );
770
$api_key = self::get_api_key();
771
$host = self::API_HOST;
773
if ( !empty( $api_key ) )
774
$host = $api_key.'.'.$host;
777
// use a specific IP if provided
778
// needed by Akismet_Admin::check_server_connectivity()
779
if ( $ip && long2ip( ip2long( $ip ) ) ) {
786
'Content-Type' => 'application/x-www-form-urlencoded; charset=' . get_option( 'blog_charset' ),
788
'User-Agent' => $akismet_ua,
790
'httpversion' => '1.0',
794
$akismet_url = "http://{$http_host}/1.1/{$path}";
795
$response = wp_remote_post( $akismet_url, $http_args );
796
Akismet::log( compact( 'akismet_url', 'http_args', 'response' ) );
797
if ( is_wp_error( $response ) )
798
return array( '', '' );
800
return array( $response['headers'], $response['body'] );
803
// given a response from an API call like check_key_status(), update the alert code options if an alert is present.
804
private static function update_alert( $response ) {
806
if ( isset( $response[0]['x-akismet-alert-code'] ) ) {
807
$code = $response[0]['x-akismet-alert-code'];
808
$msg = $response[0]['x-akismet-alert-msg'];
811
// only call update_option() if the value has changed
812
if ( $code != get_option( 'akismet_alert_code' ) ) {
814
delete_option( 'akismet_alert_code' );
815
delete_option( 'akismet_alert_msg' );
818
update_option( 'akismet_alert_code', $code );
819
update_option( 'akismet_alert_msg', $msg );
824
public static function load_form_js() {
825
// WP < 3.3 can't enqueue a script this late in the game and still have it appear in the footer.
826
// Once we drop support for everything pre-3.3, this can change back to a single enqueue call.
827
wp_register_script( 'akismet-form', AKISMET__PLUGIN_URL . '_inc/form.js', array(), AKISMET_VERSION, true );
828
add_action( 'wp_footer', array( 'Akismet', 'print_form_js' ) );
829
add_action( 'admin_footer', array( 'Akismet', 'print_form_js' ) );
832
public static function print_form_js() {
833
wp_print_scripts( 'akismet-form' );
836
public static function inject_ak_js( $fields ) {
837
echo '<p style="display: none;">';
838
echo '<input type="hidden" id="ak_js" name="ak_js" value="' . mt_rand( 0, 250 ) . '"/>';
842
private static function bail_on_activation( $message, $deactivate = true ) {
847
<meta charset="<?php bloginfo( 'charset' ); ?>">
853
font-family: "Lucida Grande",Verdana,Arial,"Bitstream Vera Sans",sans-serif;
861
<p><?php echo esc_html( $message ); ?></p>
866
$plugins = get_option( 'active_plugins' );
867
$akismet = plugin_basename( AKISMET__PLUGIN_DIR . 'akismet.php' );
869
foreach ( $plugins as $i => $plugin ) {
870
if ( $plugin === $akismet ) {
871
$plugins[$i] = false;
877
update_option( 'active_plugins', array_filter( $plugins ) );
883
public static function view( $name, array $args = array() ) {
884
$args = apply_filters( 'akismet_view_arguments', $args, $name );
886
foreach ( $args AS $key => $val ) {
890
load_plugin_textdomain( 'akismet' );
892
$file = AKISMET__PLUGIN_DIR . 'views/'. $name . '.php';
898
* Attached to activate_{ plugin_basename( __FILES__ ) } by register_activation_hook()
901
public static function plugin_activation() {
902
if ( version_compare( $GLOBALS['wp_version'], AKISMET__MINIMUM_WP_VERSION, '<' ) ) {
903
load_plugin_textdomain( 'akismet' );
905
$message = '<strong>'.sprintf(esc_html__( 'Akismet %s requires WordPress %s or higher.' , 'akismet'), AKISMET_VERSION, AKISMET__MINIMUM_WP_VERSION ).'</strong> '.sprintf(__('Please <a href="%1$s">upgrade WordPress</a> to a current version, or <a href="%2$s">downgrade to version 2.4 of the Akismet plugin</a>.', 'akismet'), 'https://codex.wordpress.org/Upgrading_WordPress', 'http://wordpress.org/extend/plugins/akismet/download/');
907
Akismet::bail_on_activation( $message );
912
* Removes all connection options
915
public static function plugin_deactivation( ) {
920
* Essentially a copy of WP's build_query but one that doesn't expect pre-urlencoded values.
922
* @param array $args An array of key => value pairs
923
* @return string A string ready for use as a URL query string.
925
public static function build_query( $args ) {
926
return _http_build_query( $args, '', '&' );
929
public static function log( $akismet_debug ) {
930
if ( defined( 'WP_DEBUG_LOG' ) && WP_DEBUG_LOG )
931
error_log( print_r( compact( 'akismet_debug' ), 1 ) ); //send message to debug.log when in debug mode
b'\\ No newline at end of file'
added
removed
wp-content/plugins/akismet/class.akismet.php
