Changeset 33750 for trunk/src/wp-includes/class-wp-comment-query.php
- Timestamp:
- 08/26/2015 04:26:29 AM (8 years ago)
- File:
-
- 1 copied
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trunk/src/wp-includes/class-wp-comment-query.php (copied) (copied from trunk/src/wp-includes/comment.php) (3 diffs)
Legend:
- Unmodified
- Added
- Removed
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trunk/src/wp-includes/class-wp-comment-query.php
r33746 r33750 1 1 <?php 2 /**3 * Manages WordPress comments4 *5 * @package WordPress6 * @subpackage Comment7 */8 9 /**10 * Check whether a comment passes internal checks to be allowed to add.11 *12 * If manual comment moderation is set in the administration, then all checks,13 * regardless of their type and whitelist, will fail and the function will14 * return false.15 *16 * If the number of links exceeds the amount in the administration, then the17 * check fails. If any of the parameter contents match the blacklist of words,18 * then the check fails.19 *20 * If the comment author was approved before, then the comment is automatically21 * whitelisted.22 *23 * If all checks pass, the function will return true.24 *25 * @since 1.2.026 *27 * @global wpdb $wpdb WordPress database abstraction object.28 *29 * @param string $author Comment author name.30 * @param string $email Comment author email.31 * @param string $url Comment author URL.32 * @param string $comment Content of the comment.33 * @param string $user_ip Comment author IP address.34 * @param string $user_agent Comment author User-Agent.35 * @param string $comment_type Comment type, either user-submitted comment,36 * trackback, or pingback.37 * @return bool If all checks pass, true, otherwise false.38 */39 function check_comment($author, $email, $url, $comment, $user_ip, $user_agent, $comment_type) {40 global $wpdb;41 42 // If manual moderation is enabled, skip all checks and return false.43 if ( 1 == get_option('comment_moderation') )44 return false;45 46 /** This filter is documented in wp-includes/comment-template.php */47 $comment = apply_filters( 'comment_text', $comment );48 49 // Check for the number of external links if a max allowed number is set.50 if ( $max_links = get_option( 'comment_max_links' ) ) {51 $num_links = preg_match_all( '/<a [^>]*href/i', $comment, $out );52 53 /**54 * Filter the maximum number of links allowed in a comment.55 *56 * @since 3.0.057 *58 * @param int $num_links The number of links allowed.59 * @param string $url Comment author's URL. Included in allowed links total.60 */61 $num_links = apply_filters( 'comment_max_links_url', $num_links, $url );62 63 /*64 * If the number of links in the comment exceeds the allowed amount,65 * fail the check by returning false.66 */67 if ( $num_links >= $max_links )68 return false;69 }70 71 $mod_keys = trim(get_option('moderation_keys'));72 73 // If moderation 'keys' (keywords) are set, process them.74 if ( !empty($mod_keys) ) {75 $words = explode("\n", $mod_keys );76 77 foreach ( (array) $words as $word) {78 $word = trim($word);79 80 // Skip empty lines.81 if ( empty($word) )82 continue;83 84 /*85 * Do some escaping magic so that '#' (number of) characters in the spam86 * words don't break things:87 */88 $word = preg_quote($word, '#');89 90 /*91 * Check the comment fields for moderation keywords. If any are found,92 * fail the check for the given field by returning false.93 */94 $pattern = "#$word#i";95 if ( preg_match($pattern, $author) ) return false;96 if ( preg_match($pattern, $email) ) return false;97 if ( preg_match($pattern, $url) ) return false;98 if ( preg_match($pattern, $comment) ) return false;99 if ( preg_match($pattern, $user_ip) ) return false;100 if ( preg_match($pattern, $user_agent) ) return false;101 }102 }103 104 /*105 * Check if the option to approve comments by previously-approved authors is enabled.106 *107 * If it is enabled, check whether the comment author has a previously-approved comment,108 * as well as whether there are any moderation keywords (if set) present in the author109 * email address. If both checks pass, return true. Otherwise, return false.110 */111 if ( 1 == get_option('comment_whitelist')) {112 if ( 'trackback' != $comment_type && 'pingback' != $comment_type && $author != '' && $email != '' ) {113 // expected_slashed ($author, $email)114 $ok_to_comment = $wpdb->get_var("SELECT comment_approved FROM $wpdb->comments WHERE comment_author = '$author' AND comment_author_email = '$email' and comment_approved = '1' LIMIT 1");115 if ( ( 1 == $ok_to_comment ) &&116 ( empty($mod_keys) || false === strpos( $email, $mod_keys) ) )117 return true;118 else119 return false;120 } else {121 return false;122 }123 }124 return true;125 }126 127 /**128 * Retrieve the approved comments for post $post_id.129 *130 * @since 2.0.0131 * @since 4.1.0 Refactored to leverage {@see WP_Comment_Query} over a direct query.132 *133 * @param int $post_id The ID of the post.134 * @param array $args Optional. See {@see WP_Comment_Query::query()} for information135 * on accepted arguments.136 * @return int|array $comments The approved comments, or number of comments if `$count`137 * argument is true.138 */139 function get_approved_comments( $post_id, $args = array() ) {140 if ( ! $post_id ) {141 return array();142 }143 144 $defaults = array(145 'status' => 1,146 'post_id' => $post_id,147 'order' => 'ASC',148 );149 $r = wp_parse_args( $args, $defaults );150 151 $query = new WP_Comment_Query;152 return $query->query( $r );153 }154 155 /**156 * Retrieves comment data given a comment ID or comment object.157 *158 * If an object is passed then the comment data will be cached and then returned159 * after being passed through a filter. If the comment is empty, then the global160 * comment variable will be used, if it is set.161 *162 * @since 2.0.0163 *164 * @global wpdb $wpdb WordPress database abstraction object.165 * @global object $comment166 *167 * @param object|string|int $comment Comment to retrieve.168 * @param string $output Optional. OBJECT or ARRAY_A or ARRAY_N constants.169 * @return object|array|null Depends on $output value.170 */171 function get_comment(&$comment, $output = OBJECT) {172 global $wpdb;173 174 if ( empty($comment) ) {175 if ( isset($GLOBALS['comment']) )176 $_comment = & $GLOBALS['comment'];177 else178 $_comment = null;179 } elseif ( is_object($comment) ) {180 wp_cache_add($comment->comment_ID, $comment, 'comment');181 $_comment = $comment;182 } else {183 if ( isset($GLOBALS['comment']) && ($GLOBALS['comment']->comment_ID == $comment) ) {184 $_comment = & $GLOBALS['comment'];185 } elseif ( ! $_comment = wp_cache_get($comment, 'comment') ) {186 $_comment = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->comments WHERE comment_ID = %d LIMIT 1", $comment));187 if ( ! $_comment )188 return null;189 wp_cache_add($_comment->comment_ID, $_comment, 'comment');190 }191 }192 193 /**194 * Fires after a comment is retrieved.195 *196 * @since 2.3.0197 *198 * @param mixed $_comment Comment data.199 */200 $_comment = apply_filters( 'get_comment', $_comment );201 202 if ( $output == OBJECT ) {203 return $_comment;204 } elseif ( $output == ARRAY_A ) {205 $__comment = get_object_vars($_comment);206 return $__comment;207 } elseif ( $output == ARRAY_N ) {208 $__comment = array_values(get_object_vars($_comment));209 return $__comment;210 } else {211 return $_comment;212 }213 }214 215 /**216 * Retrieve a list of comments.217 *218 * The comment list can be for the blog as a whole or for an individual post.219 *220 * @since 2.7.0221 *222 * @param string|array $args Optional. Array or string of arguments. See {@see WP_Comment_Query::parse_query()}223 * for information on accepted arguments. Default empty.224 * @return int|array List of comments or number of found comments if `$count` argument is true.225 */226 function get_comments( $args = '' ) {227 $query = new WP_Comment_Query;228 return $query->query( $args );229 }230 231 2 /** 232 3 * WordPress Comment Query class. … … 235 6 * 236 7 * @since 3.1.0 8 * @package WordPress 9 * @subpackage Comment 237 10 */ 238 11 class WP_Comment_Query { … … 1011 784 } 1012 785 } 1013 1014 /**1015 * Retrieve all of the WordPress supported comment statuses.1016 *1017 * Comments have a limited set of valid status values, this provides the comment1018 * status values and descriptions.1019 *1020 * @since 2.7.01021 *1022 * @return array List of comment statuses.1023 */1024 function get_comment_statuses() {1025 $status = array(1026 'hold' => __('Unapproved'),1027 /* translators: comment status */1028 'approve' => _x('Approved', 'adjective'),1029 /* translators: comment status */1030 'spam' => _x('Spam', 'adjective'),1031 );1032 1033 return $status;1034 }1035 1036 /**1037 * Gets the default comment status for a post type.1038 *1039 * @since 4.3.01040 *1041 * @param string $post_type Optional. Post type. Default 'post'.1042 * @param string $comment_type Optional. Comment type. Default 'comment'.1043 * @return string Expected return value is 'open' or 'closed'.1044 */1045 function get_default_comment_status( $post_type = 'post', $comment_type = 'comment' ) {1046 switch ( $comment_type ) {1047 case 'pingback' :1048 case 'trackback' :1049 $supports = 'trackbacks';1050 $option = 'ping';1051 break;1052 default :1053 $supports = 'comments';1054 $option = 'comment';1055 }1056 1057 // Set the status.1058 if ( 'page' === $post_type ) {1059 $status = 'closed';1060 } elseif ( post_type_supports( $post_type, $supports ) ) {1061 $status = get_option( "default_{$option}_status" );1062 } else {1063 $status = 'closed';1064 }1065 1066 /**1067 * Filter the default comment status for the given post type.1068 *1069 * @since 4.3.01070 *1071 * @param string $status Default status for the given post type,1072 * either 'open' or 'closed'.1073 * @param string $post_type Post type. Default is `post`.1074 * @param string $comment_type Type of comment. Default is `comment`.1075 */1076 return apply_filters( 'get_default_comment_status' , $status, $post_type, $comment_type );1077 }1078 1079 /**1080 * The date the last comment was modified.1081 *1082 * @since 1.5.01083 *1084 * @global wpdb $wpdb WordPress database abstraction object.1085 * @staticvar array $cache_lastcommentmodified1086 *1087 * @param string $timezone Which timezone to use in reference to 'gmt', 'blog',1088 * or 'server' locations.1089 * @return string Last comment modified date.1090 */1091 function get_lastcommentmodified($timezone = 'server') {1092 global $wpdb;1093 static $cache_lastcommentmodified = array();1094 1095 if ( isset($cache_lastcommentmodified[$timezone]) )1096 return $cache_lastcommentmodified[$timezone];1097 1098 $add_seconds_server = date('Z');1099 1100 switch ( strtolower($timezone)) {1101 case 'gmt':1102 $lastcommentmodified = $wpdb->get_var("SELECT comment_date_gmt FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1");1103 break;1104 case 'blog':1105 $lastcommentmodified = $wpdb->get_var("SELECT comment_date FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1");1106 break;1107 case 'server':1108 $lastcommentmodified = $wpdb->get_var($wpdb->prepare("SELECT DATE_ADD(comment_date_gmt, INTERVAL %s SECOND) FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1", $add_seconds_server));1109 break;1110 }1111 1112 $cache_lastcommentmodified[$timezone] = $lastcommentmodified;1113 1114 return $lastcommentmodified;1115 }1116 1117 /**1118 * The amount of comments in a post or total comments.1119 *1120 * A lot like {@link wp_count_comments()}, in that they both return comment1121 * stats (albeit with different types). The {@link wp_count_comments()} actual1122 * caches, but this function does not.1123 *1124 * @since 2.0.01125 *1126 * @global wpdb $wpdb WordPress database abstraction object.1127 *1128 * @param int $post_id Optional. Comment amount in post if > 0, else total comments blog wide.1129 * @return array The amount of spam, approved, awaiting moderation, and total comments.1130 */1131 function get_comment_count( $post_id = 0 ) {1132 global $wpdb;1133 1134 $post_id = (int) $post_id;1135 1136 $where = '';1137 if ( $post_id > 0 ) {1138 $where = $wpdb->prepare("WHERE comment_post_ID = %d", $post_id);1139 }1140 1141 $totals = (array) $wpdb->get_results("1142 SELECT comment_approved, COUNT( * ) AS total1143 FROM {$wpdb->comments}1144 {$where}1145 GROUP BY comment_approved1146 ", ARRAY_A);1147 1148 $comment_count = array(1149 "approved" => 0,1150 "awaiting_moderation" => 0,1151 "spam" => 0,1152 "total_comments" => 01153 );1154 1155 foreach ( $totals as $row ) {1156 switch ( $row['comment_approved'] ) {1157 case 'spam':1158 $comment_count['spam'] = $row['total'];1159 $comment_count["total_comments"] += $row['total'];1160 break;1161 case 1:1162 $comment_count['approved'] = $row['total'];1163 $comment_count['total_comments'] += $row['total'];1164 break;1165 case 0:1166 $comment_count['awaiting_moderation'] = $row['total'];1167 $comment_count['total_comments'] += $row['total'];1168 break;1169 default:1170 break;1171 }1172 }1173 1174 return $comment_count;1175 }1176 1177 //1178 // Comment meta functions1179 //1180 1181 /**1182 * Add meta data field to a comment.1183 *1184 * @since 2.9.01185 * @link https://codex.wordpress.org/Function_Reference/add_comment_meta1186 *1187 * @param int $comment_id Comment ID.1188 * @param string $meta_key Metadata name.1189 * @param mixed $meta_value Metadata value.1190 * @param bool $unique Optional, default is false. Whether the same key should not be added.1191 * @return int|bool Meta ID on success, false on failure.1192 */1193 function add_comment_meta($comment_id, $meta_key, $meta_value, $unique = false) {1194 return add_metadata('comment', $comment_id, $meta_key, $meta_value, $unique);1195 }1196 1197 /**1198 * Remove metadata matching criteria from a comment.1199 *1200 * You can match based on the key, or key and value. Removing based on key and1201 * value, will keep from removing duplicate metadata with the same key. It also1202 * allows removing all metadata matching key, if needed.1203 *1204 * @since 2.9.01205 * @link https://codex.wordpress.org/Function_Reference/delete_comment_meta1206 *1207 * @param int $comment_id comment ID1208 * @param string $meta_key Metadata name.1209 * @param mixed $meta_value Optional. Metadata value.1210 * @return bool True on success, false on failure.1211 */1212 function delete_comment_meta($comment_id, $meta_key, $meta_value = '') {1213 return delete_metadata('comment', $comment_id, $meta_key, $meta_value);1214 }1215 1216 /**1217 * Retrieve comment meta field for a comment.1218 *1219 * @since 2.9.01220 * @link https://codex.wordpress.org/Function_Reference/get_comment_meta1221 *1222 * @param int $comment_id Comment ID.1223 * @param string $key Optional. The meta key to retrieve. By default, returns data for all keys.1224 * @param bool $single Whether to return a single value.1225 * @return mixed Will be an array if $single is false. Will be value of meta data field if $single1226 * is true.1227 */1228 function get_comment_meta($comment_id, $key = '', $single = false) {1229 return get_metadata('comment', $comment_id, $key, $single);1230 }1231 1232 /**1233 * Update comment meta field based on comment ID.1234 *1235 * Use the $prev_value parameter to differentiate between meta fields with the1236 * same key and comment ID.1237 *1238 * If the meta field for the comment does not exist, it will be added.1239 *1240 * @since 2.9.01241 * @link https://codex.wordpress.org/Function_Reference/update_comment_meta1242 *1243 * @param int $comment_id Comment ID.1244 * @param string $meta_key Metadata key.1245 * @param mixed $meta_value Metadata value.1246 * @param mixed $prev_value Optional. Previous value to check before removing.1247 * @return int|bool Meta ID if the key didn't exist, true on successful update, false on failure.1248 */1249 function update_comment_meta($comment_id, $meta_key, $meta_value, $prev_value = '') {1250 return update_metadata('comment', $comment_id, $meta_key, $meta_value, $prev_value);1251 }1252 1253 /**1254 * Sets the cookies used to store an unauthenticated commentator's identity. Typically used1255 * to recall previous comments by this commentator that are still held in moderation.1256 *1257 * @param object $comment Comment object.1258 * @param object $user Comment author's object.1259 *1260 * @since 3.4.01261 */1262 function wp_set_comment_cookies($comment, $user) {1263 if ( $user->exists() )1264 return;1265 1266 /**1267 * Filter the lifetime of the comment cookie in seconds.1268 *1269 * @since 2.8.01270 *1271 * @param int $seconds Comment cookie lifetime. Default 30000000.1272 */1273 $comment_cookie_lifetime = apply_filters( 'comment_cookie_lifetime', 30000000 );1274 $secure = ( 'https' === parse_url( home_url(), PHP_URL_SCHEME ) );1275 setcookie( 'comment_author_' . COOKIEHASH, $comment->comment_author, time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN, $secure );1276 setcookie( 'comment_author_email_' . COOKIEHASH, $comment->comment_author_email, time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN, $secure );1277 setcookie( 'comment_author_url_' . COOKIEHASH, esc_url($comment->comment_author_url), time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN, $secure );1278 }1279 1280 /**1281 * Sanitizes the cookies sent to the user already.1282 *1283 * Will only do anything if the cookies have already been created for the user.1284 * Mostly used after cookies had been sent to use elsewhere.1285 *1286 * @since 2.0.41287 */1288 function sanitize_comment_cookies() {1289 if ( isset( $_COOKIE['comment_author_' . COOKIEHASH] ) ) {1290 /**1291 * Filter the comment author's name cookie before it is set.1292 *1293 * When this filter hook is evaluated in wp_filter_comment(),1294 * the comment author's name string is passed.1295 *1296 * @since 1.5.01297 *1298 * @param string $author_cookie The comment author name cookie.1299 */1300 $comment_author = apply_filters( 'pre_comment_author_name', $_COOKIE['comment_author_' . COOKIEHASH] );1301 $comment_author = wp_unslash($comment_author);1302 $comment_author = esc_attr($comment_author);1303 $_COOKIE['comment_author_' . COOKIEHASH] = $comment_author;1304 }1305 1306 if ( isset( $_COOKIE['comment_author_email_' . COOKIEHASH] ) ) {1307 /**1308 * Filter the comment author's email cookie before it is set.1309 *1310 * When this filter hook is evaluated in wp_filter_comment(),1311 * the comment author's email string is passed.1312 *1313 * @since 1.5.01314 *1315 * @param string $author_email_cookie The comment author email cookie.1316 */1317 $comment_author_email = apply_filters( 'pre_comment_author_email', $_COOKIE['comment_author_email_' . COOKIEHASH] );1318 $comment_author_email = wp_unslash($comment_author_email);1319 $comment_author_email = esc_attr($comment_author_email);1320 $_COOKIE['comment_author_email_'.COOKIEHASH] = $comment_author_email;1321 }1322 1323 if ( isset( $_COOKIE['comment_author_url_' . COOKIEHASH] ) ) {1324 /**1325 * Filter the comment author's URL cookie before it is set.1326 *1327 * When this filter hook is evaluated in wp_filter_comment(),1328 * the comment author's URL string is passed.1329 *1330 * @since 1.5.01331 *1332 * @param string $author_url_cookie The comment author URL cookie.1333 */1334 $comment_author_url = apply_filters( 'pre_comment_author_url', $_COOKIE['comment_author_url_' . COOKIEHASH] );1335 $comment_author_url = wp_unslash($comment_author_url);1336 $_COOKIE['comment_author_url_'.COOKIEHASH] = $comment_author_url;1337 }1338 }1339 1340 /**1341 * Validates whether this comment is allowed to be made.1342 *1343 * @since 2.0.01344 *1345 * @global wpdb $wpdb WordPress database abstraction object.1346 *1347 * @param array $commentdata Contains information on the comment1348 * @return int|string Signifies the approval status (0|1|'spam')1349 */1350 function wp_allow_comment( $commentdata ) {1351 global $wpdb;1352 1353 // Simple duplicate check1354 // expected_slashed ($comment_post_ID, $comment_author, $comment_author_email, $comment_content)1355 $dupe = $wpdb->prepare(1356 "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_parent = %s AND comment_approved != 'trash' AND ( comment_author = %s ",1357 wp_unslash( $commentdata['comment_post_ID'] ),1358 wp_unslash( $commentdata['comment_parent'] ),1359 wp_unslash( $commentdata['comment_author'] )1360 );1361 if ( $commentdata['comment_author_email'] ) {1362 $dupe .= $wpdb->prepare(1363 "OR comment_author_email = %s ",1364 wp_unslash( $commentdata['comment_author_email'] )1365 );1366 }1367 $dupe .= $wpdb->prepare(1368 ") AND comment_content = %s LIMIT 1",1369 wp_unslash( $commentdata['comment_content'] )1370 );1371 if ( $wpdb->get_var( $dupe ) ) {1372 /**1373 * Fires immediately after a duplicate comment is detected.1374 *1375 * @since 3.0.01376 *1377 * @param array $commentdata Comment data.1378 */1379 do_action( 'comment_duplicate_trigger', $commentdata );1380 if ( defined( 'DOING_AJAX' ) ) {1381 die( __('Duplicate comment detected; it looks as though you’ve already said that!') );1382 }1383 wp_die( __( 'Duplicate comment detected; it looks as though you’ve already said that!' ), 409 );1384 }1385 1386 /**1387 * Fires immediately before a comment is marked approved.1388 *1389 * Allows checking for comment flooding.1390 *1391 * @since 2.3.01392 *1393 * @param string $comment_author_IP Comment author's IP address.1394 * @param string $comment_author_email Comment author's email.1395 * @param string $comment_date_gmt GMT date the comment was posted.1396 */1397 do_action(1398 'check_comment_flood',1399 $commentdata['comment_author_IP'],1400 $commentdata['comment_author_email'],1401 $commentdata['comment_date_gmt']1402 );1403 1404 if ( ! empty( $commentdata['user_id'] ) ) {1405 $user = get_userdata( $commentdata['user_id'] );1406 $post_author = $wpdb->get_var( $wpdb->prepare(1407 "SELECT post_author FROM $wpdb->posts WHERE ID = %d LIMIT 1",1408 $commentdata['comment_post_ID']1409 ) );1410 }1411 1412 if ( isset( $user ) && ( $commentdata['user_id'] == $post_author || $user->has_cap( 'moderate_comments' ) ) ) {1413 // The author and the admins get respect.1414 $approved = 1;1415 } else {1416 // Everyone else's comments will be checked.1417 if ( check_comment(1418 $commentdata['comment_author'],1419 $commentdata['comment_author_email'],1420 $commentdata['comment_author_url'],1421 $commentdata['comment_content'],1422 $commentdata['comment_author_IP'],1423 $commentdata['comment_agent'],1424 $commentdata['comment_type']1425 ) ) {1426 $approved = 1;1427 } else {1428 $approved = 0;1429 }1430 1431 if ( wp_blacklist_check(1432 $commentdata['comment_author'],1433 $commentdata['comment_author_email'],1434 $commentdata['comment_author_url'],1435 $commentdata['comment_content'],1436 $commentdata['comment_author_IP'],1437 $commentdata['comment_agent']1438 ) ) {1439 $approved = 'spam';1440 }1441 }1442 1443 /**1444 * Filter a comment's approval status before it is set.1445 *1446 * @since 2.1.01447 *1448 * @param bool|string $approved The approval status. Accepts 1, 0, or 'spam'.1449 * @param array $commentdata Comment data.1450 */1451 $approved = apply_filters( 'pre_comment_approved', $approved, $commentdata );1452 return $approved;1453 }1454 1455 /**1456 * Check whether comment flooding is occurring.1457 *1458 * Won't run, if current user can manage options, so to not block1459 * administrators.1460 *1461 * @since 2.3.01462 *1463 * @global wpdb $wpdb WordPress database abstraction object.1464 *1465 * @param string $ip Comment IP.1466 * @param string $email Comment author email address.1467 * @param string $date MySQL time string.1468 */1469 function check_comment_flood_db( $ip, $email, $date ) {1470 global $wpdb;1471 if ( current_user_can( 'manage_options' ) )1472 return; // don't throttle admins1473 $hour_ago = gmdate( 'Y-m-d H:i:s', time() - HOUR_IN_SECONDS );1474 if ( $lasttime = $wpdb->get_var( $wpdb->prepare( "SELECT `comment_date_gmt` FROM `$wpdb->comments` WHERE `comment_date_gmt` >= %s AND ( `comment_author_IP` = %s OR `comment_author_email` = %s ) ORDER BY `comment_date_gmt` DESC LIMIT 1", $hour_ago, $ip, $email ) ) ) {1475 $time_lastcomment = mysql2date('U', $lasttime, false);1476 $time_newcomment = mysql2date('U', $date, false);1477 /**1478 * Filter the comment flood status.1479 *1480 * @since 2.1.01481 *1482 * @param bool $bool Whether a comment flood is occurring. Default false.1483 * @param int $time_lastcomment Timestamp of when the last comment was posted.1484 * @param int $time_newcomment Timestamp of when the new comment was posted.1485 */1486 $flood_die = apply_filters( 'comment_flood_filter', false, $time_lastcomment, $time_newcomment );1487 if ( $flood_die ) {1488 /**1489 * Fires before the comment flood message is triggered.1490 *1491 * @since 1.5.01492 *1493 * @param int $time_lastcomment Timestamp of when the last comment was posted.1494 * @param int $time_newcomment Timestamp of when the new comment was posted.1495 */1496 do_action( 'comment_flood_trigger', $time_lastcomment, $time_newcomment );1497 1498 if ( defined('DOING_AJAX') )1499 die( __('You are posting comments too quickly. Slow down.') );1500 1501 wp_die( __( 'You are posting comments too quickly. Slow down.' ), 429 );1502 }1503 }1504 }1505 1506 /**1507 * Separates an array of comments into an array keyed by comment_type.1508 *1509 * @since 2.7.01510 *1511 * @param array $comments Array of comments1512 * @return array Array of comments keyed by comment_type.1513 */1514 function separate_comments(&$comments) {1515 $comments_by_type = array('comment' => array(), 'trackback' => array(), 'pingback' => array(), 'pings' => array());1516 $count = count($comments);1517 for ( $i = 0; $i < $count; $i++ ) {1518 $type = $comments[$i]->comment_type;1519 if ( empty($type) )1520 $type = 'comment';1521 $comments_by_type[$type][] = &$comments[$i];1522 if ( 'trackback' == $type || 'pingback' == $type )1523 $comments_by_type['pings'][] = &$comments[$i];1524 }1525 1526 return $comments_by_type;1527 }1528 1529 /**1530 * Calculate the total number of comment pages.1531 *1532 * @since 2.7.01533 *1534 * @uses Walker_Comment1535 *1536 * @global WP_Query $wp_query1537 *1538 * @param array $comments Optional array of comment objects. Defaults to $wp_query->comments1539 * @param int $per_page Optional comments per page.1540 * @param bool $threaded Optional control over flat or threaded comments.1541 * @return int Number of comment pages.1542 */1543 function get_comment_pages_count( $comments = null, $per_page = null, $threaded = null ) {1544 global $wp_query;1545 1546 if ( null === $comments && null === $per_page && null === $threaded && !empty($wp_query->max_num_comment_pages) )1547 return $wp_query->max_num_comment_pages;1548 1549 if ( ( ! $comments || ! is_array( $comments ) ) && ! empty( $wp_query->comments ) )1550 $comments = $wp_query->comments;1551 1552 if ( empty($comments) )1553 return 0;1554 1555 if ( ! get_option( 'page_comments' ) )1556 return 1;1557 1558 if ( !isset($per_page) )1559 $per_page = (int) get_query_var('comments_per_page');1560 if ( 0 === $per_page )1561 $per_page = (int) get_option('comments_per_page');1562 if ( 0 === $per_page )1563 return 1;1564 1565 if ( !isset($threaded) )1566 $threaded = get_option('thread_comments');1567 1568 if ( $threaded ) {1569 $walker = new Walker_Comment;1570 $count = ceil( $walker->get_number_of_root_elements( $comments ) / $per_page );1571 } else {1572 $count = ceil( count( $comments ) / $per_page );1573 }1574 1575 return $count;1576 }1577 1578 /**1579 * Calculate what page number a comment will appear on for comment paging.1580 *1581 * @since 2.7.01582 *1583 * @global wpdb $wpdb1584 *1585 * @param int $comment_ID Comment ID.1586 * @param array $args Optional args.1587 * @return int|null Comment page number or null on error.1588 */1589 function get_page_of_comment( $comment_ID, $args = array() ) {1590 global $wpdb;1591 1592 if ( !$comment = get_comment( $comment_ID ) )1593 return;1594 1595 $defaults = array( 'type' => 'all', 'page' => '', 'per_page' => '', 'max_depth' => '' );1596 $args = wp_parse_args( $args, $defaults );1597 1598 if ( '' === $args['per_page'] && get_option('page_comments') )1599 $args['per_page'] = get_query_var('comments_per_page');1600 if ( empty($args['per_page']) ) {1601 $args['per_page'] = 0;1602 $args['page'] = 0;1603 }1604 if ( $args['per_page'] < 1 )1605 return 1;1606 1607 if ( '' === $args['max_depth'] ) {1608 if ( get_option('thread_comments') )1609 $args['max_depth'] = get_option('thread_comments_depth');1610 else1611 $args['max_depth'] = -1;1612 }1613 1614 // Find this comment's top level parent if threading is enabled1615 if ( $args['max_depth'] > 1 && 0 != $comment->comment_parent )1616 return get_page_of_comment( $comment->comment_parent, $args );1617 1618 $allowedtypes = array(1619 'comment' => '',1620 'pingback' => 'pingback',1621 'trackback' => 'trackback',1622 );1623 1624 $comtypewhere = ( 'all' != $args['type'] && isset($allowedtypes[$args['type']]) ) ? " AND comment_type = '" . $allowedtypes[$args['type']] . "'" : '';1625 1626 // Count comments older than this one1627 $oldercoms = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(comment_ID) FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_parent = 0 AND comment_approved = '1' AND comment_date_gmt < '%s'" . $comtypewhere, $comment->comment_post_ID, $comment->comment_date_gmt ) );1628 1629 // No older comments? Then it's page #1.1630 if ( 0 == $oldercoms )1631 return 1;1632 1633 // Divide comments older than this one by comments per page to get this comment's page number1634 return ceil( ( $oldercoms + 1 ) / $args['per_page'] );1635 }1636 1637 /**1638 * Does comment contain blacklisted characters or words.1639 *1640 * @since 1.5.01641 *1642 * @param string $author The author of the comment1643 * @param string $email The email of the comment1644 * @param string $url The url used in the comment1645 * @param string $comment The comment content1646 * @param string $user_ip The comment author IP address1647 * @param string $user_agent The author's browser user agent1648 * @return bool True if comment contains blacklisted content, false if comment does not1649 */1650 function wp_blacklist_check($author, $email, $url, $comment, $user_ip, $user_agent) {1651 /**1652 * Fires before the comment is tested for blacklisted characters or words.1653 *1654 * @since 1.5.01655 *1656 * @param string $author Comment author.1657 * @param string $email Comment author's email.1658 * @param string $url Comment author's URL.1659 * @param string $comment Comment content.1660 * @param string $user_ip Comment author's IP address.1661 * @param string $user_agent Comment author's browser user agent.1662 */1663 do_action( 'wp_blacklist_check', $author, $email, $url, $comment, $user_ip, $user_agent );1664 1665 $mod_keys = trim( get_option('blacklist_keys') );1666 if ( '' == $mod_keys )1667 return false; // If moderation keys are empty1668 $words = explode("\n", $mod_keys );1669 1670 foreach ( (array) $words as $word ) {1671 $word = trim($word);1672 1673 // Skip empty lines1674 if ( empty($word) ) { continue; }1675 1676 // Do some escaping magic so that '#' chars in the1677 // spam words don't break things:1678 $word = preg_quote($word, '#');1679 1680 $pattern = "#$word#i";1681 if (1682 preg_match($pattern, $author)1683 || preg_match($pattern, $email)1684 || preg_match($pattern, $url)1685 || preg_match($pattern, $comment)1686 || preg_match($pattern, $user_ip)1687 || preg_match($pattern, $user_agent)1688 )1689 return true;1690 }1691 return false;1692 }1693 1694 /**1695 * Retrieve total comments for blog or single post.1696 *1697 * The properties of the returned object contain the 'moderated', 'approved',1698 * and spam comments for either the entire blog or single post. Those properties1699 * contain the amount of comments that match the status. The 'total_comments'1700 * property contains the integer of total comments.1701 *1702 * The comment stats are cached and then retrieved, if they already exist in the1703 * cache.1704 *1705 * @since 2.5.01706 *1707 * @global wpdb $wpdb1708 *1709 * @param int $post_id Optional. Post ID.1710 * @return object|array Comment stats.1711 */1712 function wp_count_comments( $post_id = 0 ) {1713 global $wpdb;1714 1715 $post_id = (int) $post_id;1716 1717 /**1718 * Filter the comments count for a given post.1719 *1720 * @since 2.7.01721 *1722 * @param array $count An empty array.1723 * @param int $post_id The post ID.1724 */1725 $stats = apply_filters( 'wp_count_comments', array(), $post_id );1726 if ( !empty($stats) )1727 return $stats;1728 1729 $count = wp_cache_get("comments-{$post_id}", 'counts');1730 1731 if ( false !== $count )1732 return $count;1733 1734 $where = '';1735 if ( $post_id > 0 )1736 $where = $wpdb->prepare( "WHERE comment_post_ID = %d", $post_id );1737 1738 $count = $wpdb->get_results( "SELECT comment_approved, COUNT( * ) AS num_comments FROM {$wpdb->comments} {$where} GROUP BY comment_approved", ARRAY_A );1739 1740 $total = 0;1741 $approved = array('0' => 'moderated', '1' => 'approved', 'spam' => 'spam', 'trash' => 'trash', 'post-trashed' => 'post-trashed');1742 foreach ( (array) $count as $row ) {1743 // Don't count post-trashed toward totals1744 if ( 'post-trashed' != $row['comment_approved'] && 'trash' != $row['comment_approved'] )1745 $total += $row['num_comments'];1746 if ( isset( $approved[$row['comment_approved']] ) )1747 $stats[$approved[$row['comment_approved']]] = $row['num_comments'];1748 }1749 1750 $stats['total_comments'] = $total;1751 foreach ( $approved as $key ) {1752 if ( empty($stats[$key]) )1753 $stats[$key] = 0;1754 }1755 1756 $stats = (object) $stats;1757 wp_cache_set("comments-{$post_id}", $stats, 'counts');1758 1759 return $stats;1760 }1761 1762 /**1763 * Trashes or deletes a comment.1764 *1765 * The comment is moved to trash instead of permanently deleted unless trash is1766 * disabled, item is already in the trash, or $force_delete is true.1767 *1768 * The post comment count will be updated if the comment was approved and has a1769 * post ID available.1770 *1771 * @since 2.0.01772 *1773 * @global wpdb $wpdb WordPress database abstraction object.1774 *1775 * @param int $comment_id Comment ID1776 * @param bool $force_delete Whether to bypass trash and force deletion. Default is false.1777 * @return bool True on success, false on failure.1778 */1779 function wp_delete_comment($comment_id, $force_delete = false) {1780 global $wpdb;1781 if (!$comment = get_comment($comment_id))1782 return false;1783 1784 if ( !$force_delete && EMPTY_TRASH_DAYS && !in_array( wp_get_comment_status($comment_id), array( 'trash', 'spam' ) ) )1785 return wp_trash_comment($comment_id);1786 1787 /**1788 * Fires immediately before a comment is deleted from the database.1789 *1790 * @since 1.2.01791 *1792 * @param int $comment_id The comment ID.1793 */1794 do_action( 'delete_comment', $comment_id );1795 1796 // Move children up a level.1797 $children = $wpdb->get_col( $wpdb->prepare("SELECT comment_ID FROM $wpdb->comments WHERE comment_parent = %d", $comment_id) );1798 if ( !empty($children) ) {1799 $wpdb->update($wpdb->comments, array('comment_parent' => $comment->comment_parent), array('comment_parent' => $comment_id));1800 clean_comment_cache($children);1801 }1802 1803 // Delete metadata1804 $meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM $wpdb->commentmeta WHERE comment_id = %d", $comment_id ) );1805 foreach ( $meta_ids as $mid )1806 delete_metadata_by_mid( 'comment', $mid );1807 1808 if ( ! $wpdb->delete( $wpdb->comments, array( 'comment_ID' => $comment_id ) ) )1809 return false;1810 1811 /**1812 * Fires immediately after a comment is deleted from the database.1813 *1814 * @since 2.9.01815 *1816 * @param int $comment_id The comment ID.1817 */1818 do_action( 'deleted_comment', $comment_id );1819 1820 $post_id = $comment->comment_post_ID;1821 if ( $post_id && $comment->comment_approved == 1 )1822 wp_update_comment_count($post_id);1823 1824 clean_comment_cache($comment_id);1825 1826 /** This action is documented in wp-includes/comment.php */1827 do_action( 'wp_set_comment_status', $comment_id, 'delete' );1828 1829 wp_transition_comment_status('delete', $comment->comment_approved, $comment);1830 return true;1831 }1832 1833 /**1834 * Moves a comment to the Trash1835 *1836 * If trash is disabled, comment is permanently deleted.1837 *1838 * @since 2.9.01839 *1840 * @param int $comment_id Comment ID.1841 * @return bool True on success, false on failure.1842 */1843 function wp_trash_comment($comment_id) {1844 if ( !EMPTY_TRASH_DAYS )1845 return wp_delete_comment($comment_id, true);1846 1847 if ( !$comment = get_comment($comment_id) )1848 return false;1849 1850 /**1851 * Fires immediately before a comment is sent to the Trash.1852 *1853 * @since 2.9.01854 *1855 * @param int $comment_id The comment ID.1856 */1857 do_action( 'trash_comment', $comment_id );1858 1859 if ( wp_set_comment_status($comment_id, 'trash') ) {1860 delete_comment_meta( $comment_id, '_wp_trash_meta_status' );1861 delete_comment_meta( $comment_id, '_wp_trash_meta_time' );1862 add_comment_meta( $comment_id, '_wp_trash_meta_status', $comment->comment_approved );1863 add_comment_meta( $comment_id, '_wp_trash_meta_time', time() );1864 1865 /**1866 * Fires immediately after a comment is sent to Trash.1867 *1868 * @since 2.9.01869 *1870 * @param int $comment_id The comment ID.1871 */1872 do_action( 'trashed_comment', $comment_id );1873 return true;1874 }1875 1876 return false;1877 }1878 1879 /**1880 * Removes a comment from the Trash1881 *1882 * @since 2.9.01883 *1884 * @param int $comment_id Comment ID.1885 * @return bool True on success, false on failure.1886 */1887 function wp_untrash_comment($comment_id) {1888 if ( ! (int)$comment_id )1889 return false;1890 1891 /**1892 * Fires immediately before a comment is restored from the Trash.1893 *1894 * @since 2.9.01895 *1896 * @param int $comment_id The comment ID.1897 */1898 do_action( 'untrash_comment', $comment_id );1899 1900 $status = (string) get_comment_meta($comment_id, '_wp_trash_meta_status', true);1901 if ( empty($status) )1902 $status = '0';1903 1904 if ( wp_set_comment_status($comment_id, $status) ) {1905 delete_comment_meta($comment_id, '_wp_trash_meta_time');1906 delete_comment_meta($comment_id, '_wp_trash_meta_status');1907 /**1908 * Fires immediately after a comment is restored from the Trash.1909 *1910 * @since 2.9.01911 *1912 * @param int $comment_id The comment ID.1913 */1914 do_action( 'untrashed_comment', $comment_id );1915 return true;1916 }1917 1918 return false;1919 }1920 1921 /**1922 * Marks a comment as Spam1923 *1924 * @since 2.9.01925 *1926 * @param int $comment_id Comment ID.1927 * @return bool True on success, false on failure.1928 */1929 function wp_spam_comment($comment_id) {1930 if ( !$comment = get_comment($comment_id) )1931 return false;1932 1933 /**1934 * Fires immediately before a comment is marked as Spam.1935 *1936 * @since 2.9.01937 *1938 * @param int $comment_id The comment ID.1939 */1940 do_action( 'spam_comment', $comment_id );1941 1942 if ( wp_set_comment_status($comment_id, 'spam') ) {1943 delete_comment_meta( $comment_id, '_wp_trash_meta_status' );1944 delete_comment_meta( $comment_id, '_wp_trash_meta_time' );1945 add_comment_meta( $comment_id, '_wp_trash_meta_status', $comment->comment_approved );1946 add_comment_meta( $comment_id, '_wp_trash_meta_time', time() );1947 /**1948 * Fires immediately after a comment is marked as Spam.1949 *1950 * @since 2.9.01951 *1952 * @param int $comment_id The comment ID.1953 */1954 do_action( 'spammed_comment', $comment_id );1955 return true;1956 }1957 1958 return false;1959 }1960 1961 /**1962 * Removes a comment from the Spam1963 *1964 * @since 2.9.01965 *1966 * @param int $comment_id Comment ID.1967 * @return bool True on success, false on failure.1968 */1969 function wp_unspam_comment($comment_id) {1970 if ( ! (int)$comment_id )1971 return false;1972 1973 /**1974 * Fires immediately before a comment is unmarked as Spam.1975 *1976 * @since 2.9.01977 *1978 * @param int $comment_id The comment ID.1979 */1980 do_action( 'unspam_comment', $comment_id );1981 1982 $status = (string) get_comment_meta($comment_id, '_wp_trash_meta_status', true);1983 if ( empty($status) )1984 $status = '0';1985 1986 if ( wp_set_comment_status($comment_id, $status) ) {1987 delete_comment_meta( $comment_id, '_wp_trash_meta_status' );1988 delete_comment_meta( $comment_id, '_wp_trash_meta_time' );1989 /**1990 * Fires immediately after a comment is unmarked as Spam.1991 *1992 * @since 2.9.01993 *1994 * @param int $comment_id The comment ID.1995 */1996 do_action( 'unspammed_comment', $comment_id );1997 return true;1998 }1999 2000 return false;2001 }2002 2003 /**2004 * The status of a comment by ID.2005 *2006 * @since 1.0.02007 *2008 * @param int $comment_id Comment ID2009 * @return false|string Status might be 'trash', 'approved', 'unapproved', 'spam'. False on failure.2010 */2011 function wp_get_comment_status($comment_id) {2012 $comment = get_comment($comment_id);2013 if ( !$comment )2014 return false;2015 2016 $approved = $comment->comment_approved;2017 2018 if ( $approved == null )2019 return false;2020 elseif ( $approved == '1' )2021 return 'approved';2022 elseif ( $approved == '0' )2023 return 'unapproved';2024 elseif ( $approved == 'spam' )2025 return 'spam';2026 elseif ( $approved == 'trash' )2027 return 'trash';2028 else2029 return false;2030 }2031 2032 /**2033 * Call hooks for when a comment status transition occurs.2034 *2035 * Calls hooks for comment status transitions. If the new comment status is not the same2036 * as the previous comment status, then two hooks will be ran, the first is2037 * 'transition_comment_status' with new status, old status, and comment data. The2038 * next action called is 'comment_OLDSTATUS_to_NEWSTATUS' the NEWSTATUS is the2039 * $new_status parameter and the OLDSTATUS is $old_status parameter; it has the2040 * comment data.2041 *2042 * The final action will run whether or not the comment statuses are the same. The2043 * action is named 'comment_NEWSTATUS_COMMENTTYPE', NEWSTATUS is from the $new_status2044 * parameter and COMMENTTYPE is comment_type comment data.2045 *2046 * @since 2.7.02047 *2048 * @param string $new_status New comment status.2049 * @param string $old_status Previous comment status.2050 * @param object $comment Comment data.2051 */2052 function wp_transition_comment_status($new_status, $old_status, $comment) {2053 /*2054 * Translate raw statuses to human readable formats for the hooks.2055 * This is not a complete list of comment status, it's only the ones2056 * that need to be renamed2057 */2058 $comment_statuses = array(2059 0 => 'unapproved',2060 'hold' => 'unapproved', // wp_set_comment_status() uses "hold"2061 1 => 'approved',2062 'approve' => 'approved', // wp_set_comment_status() uses "approve"2063 );2064 if ( isset($comment_statuses[$new_status]) ) $new_status = $comment_statuses[$new_status];2065 if ( isset($comment_statuses[$old_status]) ) $old_status = $comment_statuses[$old_status];2066 2067 // Call the hooks2068 if ( $new_status != $old_status ) {2069 /**2070 * Fires when the comment status is in transition.2071 *2072 * @since 2.7.02073 *2074 * @param int|string $new_status The new comment status.2075 * @param int|string $old_status The old comment status.2076 * @param object $comment The comment data.2077 */2078 do_action( 'transition_comment_status', $new_status, $old_status, $comment );2079 /**2080 * Fires when the comment status is in transition from one specific status to another.2081 *2082 * The dynamic portions of the hook name, `$old_status`, and `$new_status`,2083 * refer to the old and new comment statuses, respectively.2084 *2085 * @since 2.7.02086 *2087 * @param object $comment Comment object.2088 */2089 do_action( "comment_{$old_status}_to_{$new_status}", $comment );2090 }2091 /**2092 * Fires when the status of a specific comment type is in transition.2093 *2094 * The dynamic portions of the hook name, `$new_status`, and `$comment->comment_type`,2095 * refer to the new comment status, and the type of comment, respectively.2096 *2097 * Typical comment types include an empty string (standard comment), 'pingback',2098 * or 'trackback'.2099 *2100 * @since 2.7.02101 *2102 * @param int $comment_ID The comment ID.2103 * @param obj $comment Comment object.2104 */2105 do_action( "comment_{$new_status}_{$comment->comment_type}", $comment->comment_ID, $comment );2106 }2107 2108 /**2109 * Get current commenter's name, email, and URL.2110 *2111 * Expects cookies content to already be sanitized. User of this function might2112 * wish to recheck the returned array for validity.2113 *2114 * @see sanitize_comment_cookies() Use to sanitize cookies2115 *2116 * @since 2.0.42117 *2118 * @return array Comment author, email, url respectively.2119 */2120 function wp_get_current_commenter() {2121 // Cookies should already be sanitized.2122 2123 $comment_author = '';2124 if ( isset($_COOKIE['comment_author_'.COOKIEHASH]) )2125 $comment_author = $_COOKIE['comment_author_'.COOKIEHASH];2126 2127 $comment_author_email = '';2128 if ( isset($_COOKIE['comment_author_email_'.COOKIEHASH]) )2129 $comment_author_email = $_COOKIE['comment_author_email_'.COOKIEHASH];2130 2131 $comment_author_url = '';2132 if ( isset($_COOKIE['comment_author_url_'.COOKIEHASH]) )2133 $comment_author_url = $_COOKIE['comment_author_url_'.COOKIEHASH];2134 2135 /**2136 * Filter the current commenter's name, email, and URL.2137 *2138 * @since 3.1.02139 *2140 * @param string $comment_author Comment author's name.2141 * @param string $comment_author_email Comment author's email.2142 * @param string $comment_author_url Comment author's URL.2143 */2144 return apply_filters( 'wp_get_current_commenter', compact('comment_author', 'comment_author_email', 'comment_author_url') );2145 }2146 2147 /**2148 * Inserts a comment into the database.2149 *2150 * @since 2.0.02151 *2152 * @global wpdb $wpdb WordPress database abstraction object.2153 *2154 * @param array $commentdata {2155 * Array of arguments for inserting a new comment.2156 *2157 * @type string $comment_agent The HTTP user agent of the `$comment_author` when2158 * the comment was submitted. Default empty.2159 * @type int|string $comment_approved Whether the comment has been approved. Default 1.2160 * @type string $comment_author The name of the author of the comment. Default empty.2161 * @type string $comment_author_email The email address of the `$comment_author`. Default empty.2162 * @type string $comment_author_IP The IP address of the `$comment_author`. Default empty.2163 * @type string $comment_author_url The URL address of the `$comment_author`. Default empty.2164 * @type string $comment_content The content of the comment. Default empty.2165 * @type string $comment_date The date the comment was submitted. To set the date2166 * manually, `$comment_date_gmt` must also be specified.2167 * Default is the current time.2168 * @type string $comment_date_gmt The date the comment was submitted in the GMT timezone.2169 * Default is `$comment_date` in the site's GMT timezone.2170 * @type int $comment_karma The karma of the comment. Default 0.2171 * @type int $comment_parent ID of this comment's parent, if any. Default 0.2172 * @type int $comment_post_ID ID of the post that relates to the comment, if any.2173 * Default empty.2174 * @type string $comment_type Comment type. Default empty.2175 * @type int $user_id ID of the user who submitted the comment. Default 0.2176 * }2177 * @return int|false The new comment's ID on success, false on failure.2178 */2179 function wp_insert_comment( $commentdata ) {2180 global $wpdb;2181 $data = wp_unslash( $commentdata );2182 2183 $comment_author = ! isset( $data['comment_author'] ) ? '' : $data['comment_author'];2184 $comment_author_email = ! isset( $data['comment_author_email'] ) ? '' : $data['comment_author_email'];2185 $comment_author_url = ! isset( $data['comment_author_url'] ) ? '' : $data['comment_author_url'];2186 $comment_author_IP = ! isset( $data['comment_author_IP'] ) ? '' : $data['comment_author_IP'];2187 2188 $comment_date = ! isset( $data['comment_date'] ) ? current_time( 'mysql' ) : $data['comment_date'];2189 $comment_date_gmt = ! isset( $data['comment_date_gmt'] ) ? get_gmt_from_date( $comment_date ) : $data['comment_date_gmt'];2190 2191 $comment_post_ID = ! isset( $data['comment_post_ID'] ) ? '' : $data['comment_post_ID'];2192 $comment_content = ! isset( $data['comment_content'] ) ? '' : $data['comment_content'];2193 $comment_karma = ! isset( $data['comment_karma'] ) ? 0 : $data['comment_karma'];2194 $comment_approved = ! isset( $data['comment_approved'] ) ? 1 : $data['comment_approved'];2195 $comment_agent = ! isset( $data['comment_agent'] ) ? '' : $data['comment_agent'];2196 $comment_type = ! isset( $data['comment_type'] ) ? '' : $data['comment_type'];2197 $comment_parent = ! isset( $data['comment_parent'] ) ? 0 : $data['comment_parent'];2198 2199 $user_id = ! isset( $data['user_id'] ) ? 0 : $data['user_id'];2200 2201 $compacted = compact( 'comment_post_ID', 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_author_IP', 'comment_date', 'comment_date_gmt', 'comment_content', 'comment_karma', 'comment_approved', 'comment_agent', 'comment_type', 'comment_parent', 'user_id' );2202 if ( ! $wpdb->insert( $wpdb->comments, $compacted ) ) {2203 return false;2204 }2205 2206 $id = (int) $wpdb->insert_id;2207 2208 if ( $comment_approved == 1 ) {2209 wp_update_comment_count( $comment_post_ID );2210 }2211 $comment = get_comment( $id );2212 2213 /**2214 * Fires immediately after a comment is inserted into the database.2215 *2216 * @since 2.8.02217 *2218 * @param int $id The comment ID.2219 * @param obj $comment Comment object.2220 */2221 do_action( 'wp_insert_comment', $id, $comment );2222 2223 wp_cache_set( 'last_changed', microtime(), 'comment' );2224 2225 return $id;2226 }2227 2228 /**2229 * Filters and sanitizes comment data.2230 *2231 * Sets the comment data 'filtered' field to true when finished. This can be2232 * checked as to whether the comment should be filtered and to keep from2233 * filtering the same comment more than once.2234 *2235 * @since 2.0.02236 *2237 * @param array $commentdata Contains information on the comment.2238 * @return array Parsed comment information.2239 */2240 function wp_filter_comment($commentdata) {2241 if ( isset( $commentdata['user_ID'] ) ) {2242 /**2243 * Filter the comment author's user id before it is set.2244 *2245 * The first time this filter is evaluated, 'user_ID' is checked2246 * (for back-compat), followed by the standard 'user_id' value.2247 *2248 * @since 1.5.02249 *2250 * @param int $user_ID The comment author's user ID.2251 */2252 $commentdata['user_id'] = apply_filters( 'pre_user_id', $commentdata['user_ID'] );2253 } elseif ( isset( $commentdata['user_id'] ) ) {2254 /** This filter is documented in wp-includes/comment.php */2255 $commentdata['user_id'] = apply_filters( 'pre_user_id', $commentdata['user_id'] );2256 }2257 2258 /**2259 * Filter the comment author's browser user agent before it is set.2260 *2261 * @since 1.5.02262 *2263 * @param int $comment_agent The comment author's browser user agent.2264 */2265 $commentdata['comment_agent'] = apply_filters( 'pre_comment_user_agent', ( isset( $commentdata['comment_agent'] ) ? $commentdata['comment_agent'] : '' ) );2266 /** This filter is documented in wp-includes/comment.php */2267 $commentdata['comment_author'] = apply_filters( 'pre_comment_author_name', $commentdata['comment_author'] );2268 /**2269 * Filter the comment content before it is set.2270 *2271 * @since 1.5.02272 *2273 * @param int $comment_content The comment content.2274 */2275 $commentdata['comment_content'] = apply_filters( 'pre_comment_content', $commentdata['comment_content'] );2276 /**2277 * Filter the comment author's IP before it is set.2278 *2279 * @since 1.5.02280 *2281 * @param int $comment_author_ip The comment author's IP.2282 */2283 $commentdata['comment_author_IP'] = apply_filters( 'pre_comment_user_ip', $commentdata['comment_author_IP'] );2284 /** This filter is documented in wp-includes/comment.php */2285 $commentdata['comment_author_url'] = apply_filters( 'pre_comment_author_url', $commentdata['comment_author_url'] );2286 /** This filter is documented in wp-includes/comment.php */2287 $commentdata['comment_author_email'] = apply_filters( 'pre_comment_author_email', $commentdata['comment_author_email'] );2288 $commentdata['filtered'] = true;2289 return $commentdata;2290 }2291 2292 /**2293 * Whether a comment should be blocked because of comment flood.2294 *2295 * @since 2.1.02296 *2297 * @param bool $block Whether plugin has already blocked comment.2298 * @param int $time_lastcomment Timestamp for last comment.2299 * @param int $time_newcomment Timestamp for new comment.2300 * @return bool Whether comment should be blocked.2301 */2302 function wp_throttle_comment_flood($block, $time_lastcomment, $time_newcomment) {2303 if ( $block ) // a plugin has already blocked... we'll let that decision stand2304 return $block;2305 if ( ($time_newcomment - $time_lastcomment) < 15 )2306 return true;2307 return false;2308 }2309 2310 /**2311 * Adds a new comment to the database.2312 *2313 * Filters new comment to ensure that the fields are sanitized and valid before2314 * inserting comment into database. Calls 'comment_post' action with comment ID2315 * and whether comment is approved by WordPress. Also has 'preprocess_comment'2316 * filter for processing the comment data before the function handles it.2317 *2318 * We use REMOTE_ADDR here directly. If you are behind a proxy, you should ensure2319 * that it is properly set, such as in wp-config.php, for your environment.2320 * See {@link https://core.trac.wordpress.org/ticket/9235}2321 *2322 * @since 1.5.02323 * @since 4.3.0 'comment_agent' and 'comment_author_IP' can be set via `$commentdata`.2324 *2325 * @see wp_insert_comment()2326 *2327 * @global wpdb $wpdb2328 *2329 * @param array $commentdata {2330 * Comment data.2331 *2332 * @type string $comment_author The name of the comment author.2333 * @type string $comment_author_email The comment author email address.2334 * @type string $comment_author_url The comment author URL.2335 * @type string $comment_content The content of the comment.2336 * @type string $comment_date The date the comment was submitted. Default is the current time.2337 * @type string $comment_date_gmt The date the comment was submitted in the GMT timezone.2338 * Default is `$comment_date` in the GMT timezone.2339 * @type int $comment_parent The ID of this comment's parent, if any. Default 0.2340 * @type int $comment_post_ID The ID of the post that relates to the comment.2341 * @type int $user_id The ID of the user who submitted the comment. Default 0.2342 * @type int $user_ID Kept for backward-compatibility. Use `$user_id` instead.2343 * @type string $comment_agent Comment author user agent. Default is the value of 'HTTP_USER_AGENT'2344 * in the `$_SERVER` superglobal sent in the original request.2345 * @type string $comment_author_IP Comment author IP address in IPv4 format. Default is the value of2346 * 'REMOTE_ADDR' in the `$_SERVER` superglobal sent in the original request.2347 * }2348 * @return int|false The ID of the comment on success, false on failure.2349 */2350 function wp_new_comment( $commentdata ) {2351 global $wpdb;2352 2353 if ( isset( $commentdata['user_ID'] ) ) {2354 $commentdata['user_id'] = $commentdata['user_ID'] = (int) $commentdata['user_ID'];2355 }2356 2357 $prefiltered_user_id = ( isset( $commentdata['user_id'] ) ) ? (int) $commentdata['user_id'] : 0;2358 2359 /**2360 * Filter a comment's data before it is sanitized and inserted into the database.2361 *2362 * @since 1.5.02363 *2364 * @param array $commentdata Comment data.2365 */2366 $commentdata = apply_filters( 'preprocess_comment', $commentdata );2367 2368 $commentdata['comment_post_ID'] = (int) $commentdata['comment_post_ID'];2369 if ( isset( $commentdata['user_ID'] ) && $prefiltered_user_id !== (int) $commentdata['user_ID'] ) {2370 $commentdata['user_id'] = $commentdata['user_ID'] = (int) $commentdata['user_ID'];2371 } elseif ( isset( $commentdata['user_id'] ) ) {2372 $commentdata['user_id'] = (int) $commentdata['user_id'];2373 }2374 2375 $commentdata['comment_parent'] = isset($commentdata['comment_parent']) ? absint($commentdata['comment_parent']) : 0;2376 $parent_status = ( 0 < $commentdata['comment_parent'] ) ? wp_get_comment_status($commentdata['comment_parent']) : '';2377 $commentdata['comment_parent'] = ( 'approved' == $parent_status || 'unapproved' == $parent_status ) ? $commentdata['comment_parent'] : 0;2378 2379 if ( ! isset( $commentdata['comment_author_IP'] ) ) {2380 $commentdata['comment_author_IP'] = $_SERVER['REMOTE_ADDR'];2381 }2382 $commentdata['comment_author_IP'] = preg_replace( '/[^0-9a-fA-F:., ]/', '', $commentdata['comment_author_IP'] );2383 2384 if ( ! isset( $commentdata['comment_agent'] ) ) {2385 $commentdata['comment_agent'] = isset( $_SERVER['HTTP_USER_AGENT'] ) ? $_SERVER['HTTP_USER_AGENT']: '';2386 }2387 $commentdata['comment_agent'] = substr( $commentdata['comment_agent'], 0, 254 );2388 2389 if ( empty( $commentdata['comment_date'] ) ) {2390 $commentdata['comment_date'] = current_time('mysql');2391 }2392 2393 if ( empty( $commentdata['comment_date_gmt'] ) ) {2394 $commentdata['comment_date_gmt'] = current_time( 'mysql', 1 );2395 }2396 2397 $commentdata = wp_filter_comment($commentdata);2398 2399 $commentdata['comment_approved'] = wp_allow_comment($commentdata);2400 2401 $comment_ID = wp_insert_comment($commentdata);2402 if ( ! $comment_ID ) {2403 $fields = array( 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_content' );2404 2405 foreach ( $fields as $field ) {2406 if ( isset( $commentdata[ $field ] ) ) {2407 $commentdata[ $field ] = $wpdb->strip_invalid_text_for_column( $wpdb->comments, $field, $commentdata[ $field ] );2408 }2409 }2410 2411 $commentdata = wp_filter_comment( $commentdata );2412 2413 $commentdata['comment_approved'] = wp_allow_comment( $commentdata );2414 2415 $comment_ID = wp_insert_comment( $commentdata );2416 if ( ! $comment_ID ) {2417 return false;2418 }2419 }2420 2421 /**2422 * Fires immediately after a comment is inserted into the database.2423 *2424 * @since 1.2.02425 *2426 * @param int $comment_ID The comment ID.2427 * @param int $comment_approved 1 (true) if the comment is approved, 0 (false) if not.2428 */2429 do_action( 'comment_post', $comment_ID, $commentdata['comment_approved'] );2430 2431 if ( 'spam' !== $commentdata['comment_approved'] ) { // If it's spam save it silently for later crunching2432 if ( '0' == $commentdata['comment_approved'] ) {2433 wp_notify_moderator( $comment_ID );2434 }2435 2436 // wp_notify_postauthor() checks if notifying the author of their own comment.2437 // By default, it won't, but filters can override this.2438 if ( get_option( 'comments_notify' ) && $commentdata['comment_approved'] ) {2439 wp_notify_postauthor( $comment_ID );2440 }2441 }2442 2443 return $comment_ID;2444 }2445 2446 /**2447 * Sets the status of a comment.2448 *2449 * The 'wp_set_comment_status' action is called after the comment is handled.2450 * If the comment status is not in the list, then false is returned.2451 *2452 * @since 1.0.02453 *2454 * global wpdb $wpdb2455 *2456 * @param int $comment_id Comment ID.2457 * @param string $comment_status New comment status, either 'hold', 'approve', 'spam', or 'trash'.2458 * @param bool $wp_error Whether to return a WP_Error object if there is a failure. Default is false.2459 * @return bool|WP_Error True on success, false or WP_Error on failure.2460 */2461 function wp_set_comment_status($comment_id, $comment_status, $wp_error = false) {2462 global $wpdb;2463 2464 switch ( $comment_status ) {2465 case 'hold':2466 case '0':2467 $status = '0';2468 break;2469 case 'approve':2470 case '1':2471 $status = '1';2472 if ( get_option('comments_notify') ) {2473 wp_notify_postauthor( $comment_id );2474 }2475 break;2476 case 'spam':2477 $status = 'spam';2478 break;2479 case 'trash':2480 $status = 'trash';2481 break;2482 default:2483 return false;2484 }2485 2486 $comment_old = clone get_comment($comment_id);2487 2488 if ( !$wpdb->update( $wpdb->comments, array('comment_approved' => $status), array('comment_ID' => $comment_id) ) ) {2489 if ( $wp_error )2490 return new WP_Error('db_update_error', __('Could not update comment status'), $wpdb->last_error);2491 else2492 return false;2493 }2494 2495 clean_comment_cache($comment_id);2496 2497 $comment = get_comment($comment_id);2498 2499 /**2500 * Fires immediately before transitioning a comment's status from one to another2501 * in the database.2502 *2503 * @since 1.5.02504 *2505 * @param int $comment_id Comment ID.2506 * @param string|bool $comment_status Current comment status. Possible values include2507 * 'hold', 'approve', 'spam', 'trash', or false.2508 */2509 do_action( 'wp_set_comment_status', $comment_id, $comment_status );2510 2511 wp_transition_comment_status($comment_status, $comment_old->comment_approved, $comment);2512 2513 wp_update_comment_count($comment->comment_post_ID);2514 2515 return true;2516 }2517 2518 /**2519 * Updates an existing comment in the database.2520 *2521 * Filters the comment and makes sure certain fields are valid before updating.2522 *2523 * @since 2.0.02524 *2525 * @global wpdb $wpdb WordPress database abstraction object.2526 *2527 * @param array $commentarr Contains information on the comment.2528 * @return int Comment was updated if value is 1, or was not updated if value is 0.2529 */2530 function wp_update_comment($commentarr) {2531 global $wpdb;2532 2533 // First, get all of the original fields2534 $comment = get_comment($commentarr['comment_ID'], ARRAY_A);2535 if ( empty( $comment ) ) {2536 return 0;2537 }2538 2539 // Make sure that the comment post ID is valid (if specified).2540 if ( isset( $commentarr['comment_post_ID'] ) && ! get_post( $commentarr['comment_post_ID'] ) ) {2541 return 0;2542 }2543 2544 // Escape data pulled from DB.2545 $comment = wp_slash($comment);2546 2547 $old_status = $comment['comment_approved'];2548 2549 // Merge old and new fields with new fields overwriting old ones.2550 $commentarr = array_merge($comment, $commentarr);2551 2552 $commentarr = wp_filter_comment( $commentarr );2553 2554 // Now extract the merged array.2555 $data = wp_unslash( $commentarr );2556 2557 /**2558 * Filter the comment content before it is updated in the database.2559 *2560 * @since 1.5.02561 *2562 * @param string $comment_content The comment data.2563 */2564 $data['comment_content'] = apply_filters( 'comment_save_pre', $data['comment_content'] );2565 2566 $data['comment_date_gmt'] = get_gmt_from_date( $data['comment_date'] );2567 2568 if ( ! isset( $data['comment_approved'] ) ) {2569 $data['comment_approved'] = 1;2570 } elseif ( 'hold' == $data['comment_approved'] ) {2571 $data['comment_approved'] = 0;2572 } elseif ( 'approve' == $data['comment_approved'] ) {2573 $data['comment_approved'] = 1;2574 }2575 2576 $comment_ID = $data['comment_ID'];2577 $comment_post_ID = $data['comment_post_ID'];2578 $keys = array( 'comment_post_ID', 'comment_content', 'comment_author', 'comment_author_email', 'comment_approved', 'comment_karma', 'comment_author_url', 'comment_date', 'comment_date_gmt', 'comment_type', 'comment_parent', 'user_id' );2579 $data = wp_array_slice_assoc( $data, $keys );2580 $rval = $wpdb->update( $wpdb->comments, $data, compact( 'comment_ID' ) );2581 2582 clean_comment_cache( $comment_ID );2583 wp_update_comment_count( $comment_post_ID );2584 /**2585 * Fires immediately after a comment is updated in the database.2586 *2587 * The hook also fires immediately before comment status transition hooks are fired.2588 *2589 * @since 1.2.02590 *2591 * @param int $comment_ID The comment ID.2592 */2593 do_action( 'edit_comment', $comment_ID );2594 $comment = get_comment($comment_ID);2595 wp_transition_comment_status($comment->comment_approved, $old_status, $comment);2596 return $rval;2597 }2598 2599 /**2600 * Whether to defer comment counting.2601 *2602 * When setting $defer to true, all post comment counts will not be updated2603 * until $defer is set to false. When $defer is set to false, then all2604 * previously deferred updated post comment counts will then be automatically2605 * updated without having to call wp_update_comment_count() after.2606 *2607 * @since 2.5.02608 * @staticvar bool $_defer2609 *2610 * @param bool $defer2611 * @return bool2612 */2613 function wp_defer_comment_counting($defer=null) {2614 static $_defer = false;2615 2616 if ( is_bool($defer) ) {2617 $_defer = $defer;2618 // flush any deferred counts2619 if ( !$defer )2620 wp_update_comment_count( null, true );2621 }2622 2623 return $_defer;2624 }2625 2626 /**2627 * Updates the comment count for post(s).2628 *2629 * When $do_deferred is false (is by default) and the comments have been set to2630 * be deferred, the post_id will be added to a queue, which will be updated at a2631 * later date and only updated once per post ID.2632 *2633 * If the comments have not be set up to be deferred, then the post will be2634 * updated. When $do_deferred is set to true, then all previous deferred post2635 * IDs will be updated along with the current $post_id.2636 *2637 * @since 2.1.02638 * @see wp_update_comment_count_now() For what could cause a false return value2639 *2640 * @staticvar array $_deferred2641 *2642 * @param int $post_id Post ID2643 * @param bool $do_deferred Whether to process previously deferred post comment counts2644 * @return bool|void True on success, false on failure2645 */2646 function wp_update_comment_count($post_id, $do_deferred=false) {2647 static $_deferred = array();2648 2649 if ( $do_deferred ) {2650 $_deferred = array_unique($_deferred);2651 foreach ( $_deferred as $i => $_post_id ) {2652 wp_update_comment_count_now($_post_id);2653 unset( $_deferred[$i] ); /** @todo Move this outside of the foreach and reset $_deferred to an array instead */2654 }2655 }2656 2657 if ( wp_defer_comment_counting() ) {2658 $_deferred[] = $post_id;2659 return true;2660 }2661 elseif ( $post_id ) {2662 return wp_update_comment_count_now($post_id);2663 }2664 2665 }2666 2667 /**2668 * Updates the comment count for the post.2669 *2670 * @since 2.5.02671 *2672 * @global wpdb $wpdb WordPress database abstraction object.2673 *2674 * @param int $post_id Post ID2675 * @return bool True on success, false on '0' $post_id or if post with ID does not exist.2676 */2677 function wp_update_comment_count_now($post_id) {2678 global $wpdb;2679 $post_id = (int) $post_id;2680 if ( !$post_id )2681 return false;2682 if ( !$post = get_post($post_id) )2683 return false;2684 2685 $old = (int) $post->comment_count;2686 $new = (int) $wpdb->get_var( $wpdb->prepare("SELECT COUNT(*) FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_approved = '1'", $post_id) );2687 $wpdb->update( $wpdb->posts, array('comment_count' => $new), array('ID' => $post_id) );2688 2689 clean_post_cache( $post );2690 2691 /**2692 * Fires immediately after a post's comment count is updated in the database.2693 *2694 * @since 2.3.02695 *2696 * @param int $post_id Post ID.2697 * @param int $new The new comment count.2698 * @param int $old The old comment count.2699 */2700 do_action( 'wp_update_comment_count', $post_id, $new, $old );2701 /** This action is documented in wp-includes/post.php */2702 do_action( 'edit_post', $post_id, $post );2703 2704 return true;2705 }2706 2707 //2708 // Ping and trackback functions.2709 //2710 2711 /**2712 * Finds a pingback server URI based on the given URL.2713 *2714 * Checks the HTML for the rel="pingback" link and x-pingback headers. It does2715 * a check for the x-pingback headers first and returns that, if available. The2716 * check for the rel="pingback" has more overhead than just the header.2717 *2718 * @since 1.5.02719 *2720 * @param string $url URL to ping.2721 * @param int $deprecated Not Used.2722 * @return false|string False on failure, string containing URI on success.2723 */2724 function discover_pingback_server_uri( $url, $deprecated = '' ) {2725 if ( !empty( $deprecated ) )2726 _deprecated_argument( __FUNCTION__, '2.7' );2727 2728 $pingback_str_dquote = 'rel="pingback"';2729 $pingback_str_squote = 'rel=\'pingback\'';2730 2731 /** @todo Should use Filter Extension or custom preg_match instead. */2732 $parsed_url = parse_url($url);2733 2734 if ( ! isset( $parsed_url['host'] ) ) // Not an URL. This should never happen.2735 return false;2736 2737 //Do not search for a pingback server on our own uploads2738 $uploads_dir = wp_upload_dir();2739 if ( 0 === strpos($url, $uploads_dir['baseurl']) )2740 return false;2741 2742 $response = wp_safe_remote_head( $url, array( 'timeout' => 2, 'httpversion' => '1.0' ) );2743 2744 if ( is_wp_error( $response ) )2745 return false;2746 2747 if ( wp_remote_retrieve_header( $response, 'x-pingback' ) )2748 return wp_remote_retrieve_header( $response, 'x-pingback' );2749 2750 // Not an (x)html, sgml, or xml page, no use going further.2751 if ( preg_match('#(image|audio|video|model)/#is', wp_remote_retrieve_header( $response, 'content-type' )) )2752 return false;2753 2754 // Now do a GET since we're going to look in the html headers (and we're sure it's not a binary file)2755 $response = wp_safe_remote_get( $url, array( 'timeout' => 2, 'httpversion' => '1.0' ) );2756 2757 if ( is_wp_error( $response ) )2758 return false;2759 2760 $contents = wp_remote_retrieve_body( $response );2761 2762 $pingback_link_offset_dquote = strpos($contents, $pingback_str_dquote);2763 $pingback_link_offset_squote = strpos($contents, $pingback_str_squote);2764 if ( $pingback_link_offset_dquote || $pingback_link_offset_squote ) {2765 $quote = ($pingback_link_offset_dquote) ? '"' : '\'';2766 $pingback_link_offset = ($quote=='"') ? $pingback_link_offset_dquote : $pingback_link_offset_squote;2767 $pingback_href_pos = @strpos($contents, 'href=', $pingback_link_offset);2768 $pingback_href_start = $pingback_href_pos+6;2769 $pingback_href_end = @strpos($contents, $quote, $pingback_href_start);2770 $pingback_server_url_len = $pingback_href_end - $pingback_href_start;2771 $pingback_server_url = substr($contents, $pingback_href_start, $pingback_server_url_len);2772 2773 // We may find rel="pingback" but an incomplete pingback URL2774 if ( $pingback_server_url_len > 0 ) { // We got it!2775 return $pingback_server_url;2776 }2777 }2778 2779 return false;2780 }2781 2782 /**2783 * Perform all pingbacks, enclosures, trackbacks, and send to pingback services.2784 *2785 * @since 2.1.02786 *2787 * @global wpdb $wpdb WordPress database abstraction object.2788 */2789 function do_all_pings() {2790 global $wpdb;2791 2792 // Do pingbacks2793 while ($ping = $wpdb->get_row("SELECT ID, post_content, meta_id FROM {$wpdb->posts}, {$wpdb->postmeta} WHERE {$wpdb->posts}.ID = {$wpdb->postmeta}.post_id AND {$wpdb->postmeta}.meta_key = '_pingme' LIMIT 1")) {2794 delete_metadata_by_mid( 'post', $ping->meta_id );2795 pingback( $ping->post_content, $ping->ID );2796 }2797 2798 // Do Enclosures2799 while ($enclosure = $wpdb->get_row("SELECT ID, post_content, meta_id FROM {$wpdb->posts}, {$wpdb->postmeta} WHERE {$wpdb->posts}.ID = {$wpdb->postmeta}.post_id AND {$wpdb->postmeta}.meta_key = '_encloseme' LIMIT 1")) {2800 delete_metadata_by_mid( 'post', $enclosure->meta_id );2801 do_enclose( $enclosure->post_content, $enclosure->ID );2802 }2803 2804 // Do Trackbacks2805 $trackbacks = $wpdb->get_col("SELECT ID FROM $wpdb->posts WHERE to_ping <> '' AND post_status = 'publish'");2806 if ( is_array($trackbacks) )2807 foreach ( $trackbacks as $trackback )2808 do_trackbacks($trackback);2809 2810 //Do Update Services/Generic Pings2811 generic_ping();2812 }2813 2814 /**2815 * Perform trackbacks.2816 *2817 * @since 1.5.02818 *2819 * @global wpdb $wpdb WordPress database abstraction object.2820 *2821 * @param int $post_id Post ID to do trackbacks on.2822 */2823 function do_trackbacks($post_id) {2824 global $wpdb;2825 2826 $post = get_post( $post_id );2827 $to_ping = get_to_ping($post_id);2828 $pinged = get_pung($post_id);2829 if ( empty($to_ping) ) {2830 $wpdb->update($wpdb->posts, array('to_ping' => ''), array('ID' => $post_id) );2831 return;2832 }2833 2834 if ( empty($post->post_excerpt) ) {2835 /** This filter is documented in wp-includes/post-template.php */2836 $excerpt = apply_filters( 'the_content', $post->post_content, $post->ID );2837 } else {2838 /** This filter is documented in wp-includes/post-template.php */2839 $excerpt = apply_filters( 'the_excerpt', $post->post_excerpt );2840 }2841 2842 $excerpt = str_replace(']]>', ']]>', $excerpt);2843 $excerpt = wp_html_excerpt($excerpt, 252, '…');2844 2845 /** This filter is documented in wp-includes/post-template.php */2846 $post_title = apply_filters( 'the_title', $post->post_title, $post->ID );2847 $post_title = strip_tags($post_title);2848 2849 if ( $to_ping ) {2850 foreach ( (array) $to_ping as $tb_ping ) {2851 $tb_ping = trim($tb_ping);2852 if ( !in_array($tb_ping, $pinged) ) {2853 trackback($tb_ping, $post_title, $excerpt, $post_id);2854 $pinged[] = $tb_ping;2855 } else {2856 $wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET to_ping = TRIM(REPLACE(to_ping, %s, '')) WHERE ID = %d", $tb_ping, $post_id) );2857 }2858 }2859 }2860 }2861 2862 /**2863 * Sends pings to all of the ping site services.2864 *2865 * @since 1.2.02866 *2867 * @param int $post_id Post ID.2868 * @return int Same as Post ID from parameter2869 */2870 function generic_ping( $post_id = 0 ) {2871 $services = get_option('ping_sites');2872 2873 $services = explode("\n", $services);2874 foreach ( (array) $services as $service ) {2875 $service = trim($service);2876 if ( '' != $service )2877 weblog_ping($service);2878 }2879 2880 return $post_id;2881 }2882 2883 /**2884 * Pings back the links found in a post.2885 *2886 * @since 0.712887 *2888 * @global string $wp_version2889 *2890 * @param string $content Post content to check for links.2891 * @param int $post_ID Post ID.2892 */2893 function pingback($content, $post_ID) {2894 global $wp_version;2895 include_once(ABSPATH . WPINC . '/class-IXR.php');2896 include_once(ABSPATH . WPINC . '/class-wp-http-ixr-client.php');2897 2898 // original code by Mort (http://mort.mine.nu:8080)2899 $post_links = array();2900 2901 $pung = get_pung($post_ID);2902 2903 // Step 12904 // Parsing the post, external links (if any) are stored in the $post_links array2905 $post_links_temp = wp_extract_urls( $content );2906 2907 // Step 2.2908 // Walking thru the links array2909 // first we get rid of links pointing to sites, not to specific files2910 // Example:2911 // http://dummy-weblog.org2912 // http://dummy-weblog.org/2913 // http://dummy-weblog.org/post.php2914 // We don't wanna ping first and second types, even if they have a valid <link/>2915 2916 foreach ( (array) $post_links_temp as $link_test ) :2917 if ( !in_array($link_test, $pung) && (url_to_postid($link_test) != $post_ID) // If we haven't pung it already and it isn't a link to itself2918 && !is_local_attachment($link_test) ) : // Also, let's never ping local attachments.2919 if ( $test = @parse_url($link_test) ) {2920 if ( isset($test['query']) )2921 $post_links[] = $link_test;2922 elseif ( isset( $test['path'] ) && ( $test['path'] != '/' ) && ( $test['path'] != '' ) )2923 $post_links[] = $link_test;2924 }2925 endif;2926 endforeach;2927 2928 $post_links = array_unique( $post_links );2929 /**2930 * Fires just before pinging back links found in a post.2931 *2932 * @since 2.0.02933 *2934 * @param array &$post_links An array of post links to be checked, passed by reference.2935 * @param array &$pung Whether a link has already been pinged, passed by reference.2936 * @param int $post_ID The post ID.2937 */2938 do_action_ref_array( 'pre_ping', array( &$post_links, &$pung, $post_ID ) );2939 2940 foreach ( (array) $post_links as $pagelinkedto ) {2941 $pingback_server_url = discover_pingback_server_uri( $pagelinkedto );2942 2943 if ( $pingback_server_url ) {2944 @ set_time_limit( 60 );2945 // Now, the RPC call2946 $pagelinkedfrom = get_permalink($post_ID);2947 2948 // using a timeout of 3 seconds should be enough to cover slow servers2949 $client = new WP_HTTP_IXR_Client($pingback_server_url);2950 $client->timeout = 3;2951 /**2952 * Filter the user agent sent when pinging-back a URL.2953 *2954 * @since 2.9.02955 *2956 * @param string $concat_useragent The user agent concatenated with ' -- WordPress/'2957 * and the WordPress version.2958 * @param string $useragent The useragent.2959 * @param string $pingback_server_url The server URL being linked to.2960 * @param string $pagelinkedto URL of page linked to.2961 * @param string $pagelinkedfrom URL of page linked from.2962 */2963 $client->useragent = apply_filters( 'pingback_useragent', $client->useragent . ' -- WordPress/' . $wp_version, $client->useragent, $pingback_server_url, $pagelinkedto, $pagelinkedfrom );2964 // when set to true, this outputs debug messages by itself2965 $client->debug = false;2966 2967 if ( $client->query('pingback.ping', $pagelinkedfrom, $pagelinkedto) || ( isset($client->error->code) && 48 == $client->error->code ) ) // Already registered2968 add_ping( $post_ID, $pagelinkedto );2969 }2970 }2971 }2972 2973 /**2974 * Check whether blog is public before returning sites.2975 *2976 * @since 2.1.02977 *2978 * @param mixed $sites Will return if blog is public, will not return if not public.2979 * @return mixed Empty string if blog is not public, returns $sites, if site is public.2980 */2981 function privacy_ping_filter($sites) {2982 if ( '0' != get_option('blog_public') )2983 return $sites;2984 else2985 return '';2986 }2987 2988 /**2989 * Send a Trackback.2990 *2991 * Updates database when sending trackback to prevent duplicates.2992 *2993 * @since 0.712994 *2995 * @global wpdb $wpdb WordPress database abstraction object.2996 *2997 * @param string $trackback_url URL to send trackbacks.2998 * @param string $title Title of post.2999 * @param string $excerpt Excerpt of post.3000 * @param int $ID Post ID.3001 * @return int|false|void Database query from update.3002 */3003 function trackback($trackback_url, $title, $excerpt, $ID) {3004 global $wpdb;3005 3006 if ( empty($trackback_url) )3007 return;3008 3009 $options = array();3010 $options['timeout'] = 4;3011 $options['body'] = array(3012 'title' => $title,3013 'url' => get_permalink($ID),3014 'blog_name' => get_option('blogname'),3015 'excerpt' => $excerpt3016 );3017 3018 $response = wp_safe_remote_post( $trackback_url, $options );3019 3020 if ( is_wp_error( $response ) )3021 return;3022 3023 $wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET pinged = CONCAT(pinged, '\n', %s) WHERE ID = %d", $trackback_url, $ID) );3024 return $wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET to_ping = TRIM(REPLACE(to_ping, %s, '')) WHERE ID = %d", $trackback_url, $ID) );3025 }3026 3027 /**3028 * Send a pingback.3029 *3030 * @since 1.2.03031 *3032 * @global string $wp_version3033 *3034 * @param string $server Host of blog to connect to.3035 * @param string $path Path to send the ping.3036 */3037 function weblog_ping($server = '', $path = '') {3038 global $wp_version;3039 include_once(ABSPATH . WPINC . '/class-IXR.php');3040 include_once(ABSPATH . WPINC . '/class-wp-http-ixr-client.php');3041 3042 // using a timeout of 3 seconds should be enough to cover slow servers3043 $client = new WP_HTTP_IXR_Client($server, ((!strlen(trim($path)) || ('/' == $path)) ? false : $path));3044 $client->timeout = 3;3045 $client->useragent .= ' -- WordPress/'.$wp_version;3046 3047 // when set to true, this outputs debug messages by itself3048 $client->debug = false;3049 $home = trailingslashit( home_url() );3050 if ( !$client->query('weblogUpdates.extendedPing', get_option('blogname'), $home, get_bloginfo('rss2_url') ) ) // then try a normal ping3051 $client->query('weblogUpdates.ping', get_option('blogname'), $home);3052 }3053 3054 /**3055 * Default filter attached to pingback_ping_source_uri to validate the pingback's Source URI3056 *3057 * @since 3.5.13058 * @see wp_http_validate_url()3059 *3060 * @param string $source_uri3061 * @return string3062 */3063 function pingback_ping_source_uri( $source_uri ) {3064 return (string) wp_http_validate_url( $source_uri );3065 }3066 3067 /**3068 * Default filter attached to xmlrpc_pingback_error.3069 *3070 * Returns a generic pingback error code unless the error code is 48,3071 * which reports that the pingback is already registered.3072 *3073 * @since 3.5.13074 * @link http://www.hixie.ch/specs/pingback/pingback#TOC33075 *3076 * @param IXR_Error $ixr_error3077 * @return IXR_Error3078 */3079 function xmlrpc_pingback_error( $ixr_error ) {3080 if ( $ixr_error->code === 48 )3081 return $ixr_error;3082 return new IXR_Error( 0, '' );3083 }3084 3085 //3086 // Cache3087 //3088 3089 /**3090 * Removes comment ID from the comment cache.3091 *3092 * @since 2.3.03093 *3094 * @param int|array $ids Comment ID or array of comment IDs to remove from cache3095 */3096 function clean_comment_cache($ids) {3097 foreach ( (array) $ids as $id )3098 wp_cache_delete($id, 'comment');3099 3100 wp_cache_set( 'last_changed', microtime(), 'comment' );3101 }3102 3103 /**3104 * Updates the comment cache of given comments.3105 *3106 * Will add the comments in $comments to the cache. If comment ID already exists3107 * in the comment cache then it will not be updated. The comment is added to the3108 * cache using the comment group with the key using the ID of the comments.3109 *3110 * @since 2.3.03111 *3112 * @param array $comments Array of comment row objects3113 */3114 function update_comment_cache($comments) {3115 foreach ( (array) $comments as $comment )3116 wp_cache_add($comment->comment_ID, $comment, 'comment');3117 }3118 3119 //3120 // Internal3121 //3122 3123 /**3124 * Close comments on old posts on the fly, without any extra DB queries. Hooked to the_posts.3125 *3126 * @access private3127 * @since 2.7.03128 *3129 * @param WP_Post $posts Post data object.3130 * @param WP_Query $query Query object.3131 * @return array3132 */3133 function _close_comments_for_old_posts( $posts, $query ) {3134 if ( empty( $posts ) || ! $query->is_singular() || ! get_option( 'close_comments_for_old_posts' ) )3135 return $posts;3136 3137 /**3138 * Filter the list of post types to automatically close comments for.3139 *3140 * @since 3.2.03141 *3142 * @param array $post_types An array of registered post types. Default array with 'post'.3143 */3144 $post_types = apply_filters( 'close_comments_for_post_types', array( 'post' ) );3145 if ( ! in_array( $posts[0]->post_type, $post_types ) )3146 return $posts;3147 3148 $days_old = (int) get_option( 'close_comments_days_old' );3149 if ( ! $days_old )3150 return $posts;3151 3152 if ( time() - strtotime( $posts[0]->post_date_gmt ) > ( $days_old * DAY_IN_SECONDS ) ) {3153 $posts[0]->comment_status = 'closed';3154 $posts[0]->ping_status = 'closed';3155 }3156 3157 return $posts;3158 }3159 3160 /**3161 * Close comments on an old post. Hooked to comments_open and pings_open.3162 *3163 * @access private3164 * @since 2.7.03165 *3166 * @param bool $open Comments open or closed3167 * @param int $post_id Post ID3168 * @return bool $open3169 */3170 function _close_comments_for_old_post( $open, $post_id ) {3171 if ( ! $open )3172 return $open;3173 3174 if ( !get_option('close_comments_for_old_posts') )3175 return $open;3176 3177 $days_old = (int) get_option('close_comments_days_old');3178 if ( !$days_old )3179 return $open;3180 3181 $post = get_post($post_id);3182 3183 /** This filter is documented in wp-includes/comment.php */3184 $post_types = apply_filters( 'close_comments_for_post_types', array( 'post' ) );3185 if ( ! in_array( $post->post_type, $post_types ) )3186 return $open;3187 3188 if ( time() - strtotime( $post->post_date_gmt ) > ( $days_old * DAY_IN_SECONDS ) )3189 return false;3190 3191 return $open;3192 }
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