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1 <?php 2 /** 3 * Manages WordPress comments 4 * 5 * @package WordPress 6 * @subpackage Comment 7 */ 8 9 /** 10 * Checks whether a comment passes internal checks to be allowed to add. 11 * 12 * If comment moderation is set in the administration, then all comments, 13 * regardless of their type and whitelist will be set to false. If the number of 14 * links exceeds the amount in the administration, then the check fails. If any 15 * of the parameter contents match the blacklist of words, then the check fails. 16 * 17 * If the number of links exceeds the amount in the administration, then the 18 * check fails. If any of the parameter contents match the blacklist of words, 19 * then the check fails. 20 * 21 * If the comment author was approved before, then the comment is 22 * automatically whitelisted. 23 * 24 * If none of the checks fail, then the failback is to set the check to pass 25 * (return true). 26 * 27 * @since 1.2.0 28 * @uses $wpdb 29 * 30 * @param string $author Comment Author's name 31 * @param string $email Comment Author's email 32 * @param string $url Comment Author's URL 33 * @param string $comment Comment contents 34 * @param string $user_ip Comment Author's IP address 35 * @param string $user_agent Comment Author's User Agent 36 * @param string $comment_type Comment type, either user submitted comment, 37 * trackback, or pingback 38 * @return bool Whether the checks passed (true) and the comments should be 39 * displayed or set to moderated 40 */ 41 function check_comment($author, $email, $url, $comment, $user_ip, $user_agent, $comment_type) { 42 global $wpdb; 43 44 if ( 1 == get_option('comment_moderation') ) 45 return false; // If moderation is set to manual 46 47 /** This filter is documented in wp-includes/comment-template.php */ 48 $comment = apply_filters( 'comment_text', $comment ); 49 50 // Check # of external links 51 if ( $max_links = get_option( 'comment_max_links' ) ) { 52 $num_links = preg_match_all( '/<a [^>]*href/i', $comment, $out ); 53 /** 54 * Filter the maximum number of links allowed in a comment. 55 * 56 * @since 3.0.0 57 * 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 if ( $num_links >= $max_links ) 63 return false; 64 } 65 66 $mod_keys = trim(get_option('moderation_keys')); 67 if ( !empty($mod_keys) ) { 68 $words = explode("\n", $mod_keys ); 69 70 foreach ( (array) $words as $word) { 71 $word = trim($word); 72 73 // Skip empty lines 74 if ( empty($word) ) 75 continue; 76 77 // Do some escaping magic so that '#' chars in the 78 // spam words don't break things: 79 $word = preg_quote($word, '#'); 80 81 $pattern = "#$word#i"; 82 if ( preg_match($pattern, $author) ) return false; 83 if ( preg_match($pattern, $email) ) return false; 84 if ( preg_match($pattern, $url) ) return false; 85 if ( preg_match($pattern, $comment) ) return false; 86 if ( preg_match($pattern, $user_ip) ) return false; 87 if ( preg_match($pattern, $user_agent) ) return false; 88 } 89 } 90 91 // Comment whitelisting: 92 if ( 1 == get_option('comment_whitelist')) { 93 if ( 'trackback' != $comment_type && 'pingback' != $comment_type && $author != '' && $email != '' ) { 94 // expected_slashed ($author, $email) 95 $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"); 96 if ( ( 1 == $ok_to_comment ) && 97 ( empty($mod_keys) || false === strpos( $email, $mod_keys) ) ) 98 return true; 99 else 100 return false; 101 } else { 102 return false; 103 } 104 } 105 return true; 106 } 107 108 /** 109 * Retrieve the approved comments for post $post_id. 110 * 111 * @since 2.0.0 112 * @uses $wpdb 113 * 114 * @param int $post_id The ID of the post 115 * @return array $comments The approved comments 116 */ 117 function get_approved_comments($post_id) { 118 global $wpdb; 119 return $wpdb->get_results($wpdb->prepare("SELECT * FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_approved = '1' ORDER BY comment_date", $post_id)); 120 } 121 122 /** 123 * Retrieves comment data given a comment ID or comment object. 124 * 125 * If an object is passed then the comment data will be cached and then returned 126 * after being passed through a filter. If the comment is empty, then the global 127 * comment variable will be used, if it is set. 128 * 129 * @since 2.0.0 130 * @uses $wpdb 131 * 132 * @param object|string|int $comment Comment to retrieve. 133 * @param string $output Optional. OBJECT or ARRAY_A or ARRAY_N constants. 134 * @return object|array|null Depends on $output value. 135 */ 136 function get_comment(&$comment, $output = OBJECT) { 137 global $wpdb; 138 $null = null; 139 140 if ( empty($comment) ) { 141 if ( isset($GLOBALS['comment']) ) 142 $_comment = & $GLOBALS['comment']; 143 else 144 $_comment = null; 145 } elseif ( is_object($comment) ) { 146 wp_cache_add($comment->comment_ID, $comment, 'comment'); 147 $_comment = $comment; 148 } else { 149 if ( isset($GLOBALS['comment']) && ($GLOBALS['comment']->comment_ID == $comment) ) { 150 $_comment = & $GLOBALS['comment']; 151 } elseif ( ! $_comment = wp_cache_get($comment, 'comment') ) { 152 $_comment = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->comments WHERE comment_ID = %d LIMIT 1", $comment)); 153 if ( ! $_comment ) 154 return $null; 155 wp_cache_add($_comment->comment_ID, $_comment, 'comment'); 156 } 157 } 158 159 /** 160 * Fires after a comment is retrieved. 161 * 162 * @since 2.3.0 163 * 164 * @param mixed $_comment Comment data. 165 */ 166 $_comment = apply_filters( 'get_comment', $_comment ); 167 168 if ( $output == OBJECT ) { 169 return $_comment; 170 } elseif ( $output == ARRAY_A ) { 171 $__comment = get_object_vars($_comment); 172 return $__comment; 173 } elseif ( $output == ARRAY_N ) { 174 $__comment = array_values(get_object_vars($_comment)); 175 return $__comment; 176 } else { 177 return $_comment; 178 } 179 } 180 181 /** 182 * Retrieve a list of comments. 183 * 184 * The comment list can be for the blog as a whole or for an individual post. 185 * 186 * The list of comment arguments are 'status', 'orderby', 'comment_date_gmt', 187 * 'order', 'number', 'offset', and 'post_id'. 188 * 189 * @since 2.7.0 190 * @uses $wpdb 191 * 192 * @param mixed $args Optional. Array or string of options to override defaults. 193 * @return array List of comments. 194 */ 195 function get_comments( $args = '' ) { 196 $query = new WP_Comment_Query; 197 return $query->query( $args ); 198 } 199 200 /** 201 * WordPress Comment Query class. 202 * 203 * @since 3.1.0 204 */ 205 class WP_Comment_Query { 206 /** 207 * Metadata query container 208 * 209 * @since 3.5.0 210 * @access public 211 * @var object WP_Meta_Query 212 */ 213 var $meta_query = false; 214 215 /** 216 * Date query container 217 * 218 * @since 3.7.0 219 * @access public 220 * @var object WP_Date_Query 221 */ 222 var $date_query = false; 223 224 /** 225 * Execute the query 226 * 227 * @since 3.1.0 228 * 229 * @param string|array $query_vars 230 * @return int|array 231 */ 232 function query( $query_vars ) { 233 global $wpdb; 234 235 $defaults = array( 236 'author_email' => '', 237 'ID' => '', 238 'karma' => '', 239 'number' => '', 240 'offset' => '', 241 'orderby' => '', 242 'order' => 'DESC', 243 'parent' => '', 244 'post_ID' => '', 245 'post_id' => 0, 246 'post_author' => '', 247 'post_name' => '', 248 'post_parent' => '', 249 'post_status' => '', 250 'post_type' => '', 251 'status' => '', 252 'type' => '', 253 'user_id' => '', 254 'search' => '', 255 'count' => false, 256 'meta_key' => '', 257 'meta_value' => '', 258 'meta_query' => '', 259 'date_query' => null, // See WP_Date_Query 260 ); 261 262 $groupby = ''; 263 264 $this->query_vars = wp_parse_args( $query_vars, $defaults ); 265 266 // Parse meta query 267 $this->meta_query = new WP_Meta_Query(); 268 $this->meta_query->parse_query_vars( $this->query_vars ); 269 270 /** 271 * Fires before comments are retrieved. 272 * 273 * @since 3.1.0 274 * 275 * @param WP_Comment_Query &$this Current instance of WP_Comment_Query, passed by reference. 276 */ 277 do_action_ref_array( 'pre_get_comments', array( &$this ) ); 278 extract( $this->query_vars, EXTR_SKIP ); 279 280 // $args can be whatever, only use the args defined in defaults to compute the key 281 $key = md5( serialize( compact(array_keys($defaults)) ) ); 282 $last_changed = wp_cache_get( 'last_changed', 'comment' ); 283 if ( ! $last_changed ) { 284 $last_changed = microtime(); 285 wp_cache_set( 'last_changed', $last_changed, 'comment' ); 286 } 287 $cache_key = "get_comments:$key:$last_changed"; 288 289 if ( $cache = wp_cache_get( $cache_key, 'comment' ) ) 290 return $cache; 291 292 $post_id = absint($post_id); 293 294 if ( 'hold' == $status ) 295 $approved = "comment_approved = '0'"; 296 elseif ( 'approve' == $status ) 297 $approved = "comment_approved = '1'"; 298 elseif ( ! empty( $status ) && 'all' != $status ) 299 $approved = $wpdb->prepare( "comment_approved = %s", $status ); 300 else 301 $approved = "( comment_approved = '0' OR comment_approved = '1' )"; 302 303 $order = ( 'ASC' == strtoupper($order) ) ? 'ASC' : 'DESC'; 304 305 if ( ! empty( $orderby ) ) { 306 $ordersby = is_array($orderby) ? $orderby : preg_split('/[,\s]/', $orderby); 307 $allowed_keys = array( 308 'comment_agent', 309 'comment_approved', 310 'comment_author', 311 'comment_author_email', 312 'comment_author_IP', 313 'comment_author_url', 314 'comment_content', 315 'comment_date', 316 'comment_date_gmt', 317 'comment_ID', 318 'comment_karma', 319 'comment_parent', 320 'comment_post_ID', 321 'comment_type', 322 'user_id', 323 ); 324 if ( ! empty( $this->query_vars['meta_key'] ) ) { 325 $allowed_keys[] = $this->query_vars['meta_key']; 326 $allowed_keys[] = 'meta_value'; 327 $allowed_keys[] = 'meta_value_num'; 328 } 329 $ordersby = array_intersect( $ordersby, $allowed_keys ); 330 foreach ( $ordersby as $key => $value ) { 331 if ( $value == $this->query_vars['meta_key'] || $value == 'meta_value' ) { 332 $ordersby[ $key ] = "$wpdb->commentmeta.meta_value"; 333 } elseif ( $value == 'meta_value_num' ) { 334 $ordersby[ $key ] = "$wpdb->commentmeta.meta_value+0"; 335 } 336 } 337 $orderby = empty( $ordersby ) ? 'comment_date_gmt' : implode(', ', $ordersby); 338 } else { 339 $orderby = 'comment_date_gmt'; 340 } 341 342 $number = absint($number); 343 $offset = absint($offset); 344 345 if ( !empty($number) ) { 346 if ( $offset ) 347 $limits = 'LIMIT ' . $offset . ',' . $number; 348 else 349 $limits = 'LIMIT ' . $number; 350 } else { 351 $limits = ''; 352 } 353 354 if ( $count ) 355 $fields = 'COUNT(*)'; 356 else 357 $fields = '*'; 358 359 $join = ''; 360 $where = $approved; 361 362 if ( ! empty($post_id) ) 363 $where .= $wpdb->prepare( ' AND comment_post_ID = %d', $post_id ); 364 if ( '' !== $author_email ) 365 $where .= $wpdb->prepare( ' AND comment_author_email = %s', $author_email ); 366 if ( '' !== $karma ) 367 $where .= $wpdb->prepare( ' AND comment_karma = %d', $karma ); 368 if ( 'comment' == $type ) { 369 $where .= " AND comment_type = ''"; 370 } elseif( 'pings' == $type ) { 371 $where .= ' AND comment_type IN ("pingback", "trackback")'; 372 } elseif ( ! empty( $type ) ) { 373 $where .= $wpdb->prepare( ' AND comment_type = %s', $type ); 374 } 375 if ( '' !== $parent ) 376 $where .= $wpdb->prepare( ' AND comment_parent = %d', $parent ); 377 if ( '' !== $user_id ) 378 $where .= $wpdb->prepare( ' AND user_id = %d', $user_id ); 379 if ( '' !== $search ) 380 $where .= $this->get_search_sql( $search, array( 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_author_IP', 'comment_content' ) ); 381 382 $post_fields = array_filter( compact( array( 'post_author', 'post_name', 'post_parent', 'post_status', 'post_type', ) ) ); 383 if ( ! empty( $post_fields ) ) { 384 $join = "JOIN $wpdb->posts ON $wpdb->posts.ID = $wpdb->comments.comment_post_ID"; 385 foreach( $post_fields as $field_name => $field_value ) 386 $where .= $wpdb->prepare( " AND {$wpdb->posts}.{$field_name} = %s", $field_value ); 387 } 388 389 if ( ! empty( $this->meta_query->queries ) ) { 390 $clauses = $this->meta_query->get_sql( 'comment', $wpdb->comments, 'comment_ID', $this ); 391 $join .= $clauses['join']; 392 $where .= $clauses['where']; 393 $groupby = "{$wpdb->comments}.comment_ID"; 394 } 395 396 if ( ! empty( $date_query ) && is_array( $date_query ) ) { 397 $date_query_object = new WP_Date_Query( $date_query, 'comment_date' ); 398 $where .= $date_query_object->get_sql(); 399 } 400 401 $pieces = array( 'fields', 'join', 'where', 'orderby', 'order', 'limits', 'groupby' ); 402 /** 403 * Filter the comment query clauses. 404 * 405 * @since 3.1.0 406 * 407 * @param array $pieces A compacted array of comment query clauses. 408 * @param WP_Comment_Query &$this Current instance of WP_Comment_Query, passed by reference. 409 */ 410 $clauses = apply_filters_ref_array( 'comments_clauses', array( compact( $pieces ), &$this ) ); 411 foreach ( $pieces as $piece ) 412 $$piece = isset( $clauses[ $piece ] ) ? $clauses[ $piece ] : ''; 413 414 if ( $groupby ) 415 $groupby = 'GROUP BY ' . $groupby; 416 417 $query = "SELECT $fields FROM $wpdb->comments $join WHERE $where $groupby ORDER BY $orderby $order $limits"; 418 419 if ( $count ) 420 return $wpdb->get_var( $query ); 421 422 $comments = $wpdb->get_results( $query ); 423 /** 424 * Filter the comment query results. 425 * 426 * @since 3.1.0 427 * 428 * @param array $comments An array of comments. 429 * @param WP_Comment_Query &$this Current instance of WP_Comment_Query, passed by reference. 430 */ 431 $comments = apply_filters_ref_array( 'the_comments', array( $comments, &$this ) ); 432 433 wp_cache_add( $cache_key, $comments, 'comment' ); 434 435 return $comments; 436 } 437 438 /** 439 * Used internally to generate an SQL string for searching across multiple columns 440 * 441 * @access protected 442 * @since 3.1.0 443 * 444 * @param string $string 445 * @param array $cols 446 * @return string 447 */ 448 function get_search_sql( $string, $cols ) { 449 $string = esc_sql( like_escape( $string ) ); 450 451 $searches = array(); 452 foreach ( $cols as $col ) 453 $searches[] = "$col LIKE '%$string%'"; 454 455 return ' AND (' . implode(' OR ', $searches) . ')'; 456 } 457 } 458 459 /** 460 * Retrieve all of the WordPress supported comment statuses. 461 * 462 * Comments have a limited set of valid status values, this provides the comment 463 * status values and descriptions. 464 * 465 * @package WordPress 466 * @subpackage Post 467 * @since 2.7.0 468 * 469 * @return array List of comment statuses. 470 */ 471 function get_comment_statuses() { 472 $status = array( 473 'hold' => __('Unapproved'), 474 /* translators: comment status */ 475 'approve' => _x('Approved', 'adjective'), 476 /* translators: comment status */ 477 'spam' => _x('Spam', 'adjective'), 478 ); 479 480 return $status; 481 } 482 483 /** 484 * The date the last comment was modified. 485 * 486 * @since 1.5.0 487 * @uses $wpdb 488 * 489 * @param string $timezone Which timezone to use in reference to 'gmt', 'blog', 490 * or 'server' locations. 491 * @return string Last comment modified date. 492 */ 493 function get_lastcommentmodified($timezone = 'server') { 494 global $wpdb; 495 static $cache_lastcommentmodified = array(); 496 497 if ( isset($cache_lastcommentmodified[$timezone]) ) 498 return $cache_lastcommentmodified[$timezone]; 499 500 $add_seconds_server = date('Z'); 501 502 switch ( strtolower($timezone)) { 503 case 'gmt': 504 $lastcommentmodified = $wpdb->get_var("SELECT comment_date_gmt FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1"); 505 break; 506 case 'blog': 507 $lastcommentmodified = $wpdb->get_var("SELECT comment_date FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1"); 508 break; 509 case 'server': 510 $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)); 511 break; 512 } 513 514 $cache_lastcommentmodified[$timezone] = $lastcommentmodified; 515 516 return $lastcommentmodified; 517 } 518 519 /** 520 * The amount of comments in a post or total comments. 521 * 522 * A lot like {@link wp_count_comments()}, in that they both return comment 523 * stats (albeit with different types). The {@link wp_count_comments()} actual 524 * caches, but this function does not. 525 * 526 * @since 2.0.0 527 * @uses $wpdb 528 * 529 * @param int $post_id Optional. Comment amount in post if > 0, else total comments blog wide. 530 * @return array The amount of spam, approved, awaiting moderation, and total comments. 531 */ 532 function get_comment_count( $post_id = 0 ) { 533 global $wpdb; 534 535 $post_id = (int) $post_id; 536 537 $where = ''; 538 if ( $post_id > 0 ) { 539 $where = $wpdb->prepare("WHERE comment_post_ID = %d", $post_id); 540 } 541 542 $totals = (array) $wpdb->get_results(" 543 SELECT comment_approved, COUNT( * ) AS total 544 FROM {$wpdb->comments} 545 {$where} 546 GROUP BY comment_approved 547 ", ARRAY_A); 548 549 $comment_count = array( 550 "approved" => 0, 551 "awaiting_moderation" => 0, 552 "spam" => 0, 553 "total_comments" => 0 554 ); 555 556 foreach ( $totals as $row ) { 557 switch ( $row['comment_approved'] ) { 558 case 'spam': 559 $comment_count['spam'] = $row['total']; 560 $comment_count["total_comments"] += $row['total']; 561 break; 562 case 1: 563 $comment_count['approved'] = $row['total']; 564 $comment_count['total_comments'] += $row['total']; 565 break; 566 case 0: 567 $comment_count['awaiting_moderation'] = $row['total']; 568 $comment_count['total_comments'] += $row['total']; 569 break; 570 default: 571 break; 572 } 573 } 574 575 return $comment_count; 576 } 577 578 // 579 // Comment meta functions 580 // 581 582 /** 583 * Add meta data field to a comment. 584 * 585 * @since 2.9.0 586 * @uses add_metadata 587 * @link http://codex.wordpress.org/Function_Reference/add_comment_meta 588 * 589 * @param int $comment_id Comment ID. 590 * @param string $meta_key Metadata name. 591 * @param mixed $meta_value Metadata value. 592 * @param bool $unique Optional, default is false. Whether the same key should not be added. 593 * @return int|bool Meta ID on success, false on failure. 594 */ 595 function add_comment_meta($comment_id, $meta_key, $meta_value, $unique = false) { 596 return add_metadata('comment', $comment_id, $meta_key, $meta_value, $unique); 597 } 598 599 /** 600 * Remove metadata matching criteria from a comment. 601 * 602 * You can match based on the key, or key and value. Removing based on key and 603 * value, will keep from removing duplicate metadata with the same key. It also 604 * allows removing all metadata matching key, if needed. 605 * 606 * @since 2.9.0 607 * @uses delete_metadata 608 * @link http://codex.wordpress.org/Function_Reference/delete_comment_meta 609 * 610 * @param int $comment_id comment ID 611 * @param string $meta_key Metadata name. 612 * @param mixed $meta_value Optional. Metadata value. 613 * @return bool True on success, false on failure. 614 */ 615 function delete_comment_meta($comment_id, $meta_key, $meta_value = '') { 616 return delete_metadata('comment', $comment_id, $meta_key, $meta_value); 617 } 618 619 /** 620 * Retrieve comment meta field for a comment. 621 * 622 * @since 2.9.0 623 * @uses get_metadata 624 * @link http://codex.wordpress.org/Function_Reference/get_comment_meta 625 * 626 * @param int $comment_id Comment ID. 627 * @param string $key Optional. The meta key to retrieve. By default, returns data for all keys. 628 * @param bool $single Whether to return a single value. 629 * @return mixed Will be an array if $single is false. Will be value of meta data field if $single 630 * is true. 631 */ 632 function get_comment_meta($comment_id, $key = '', $single = false) { 633 return get_metadata('comment', $comment_id, $key, $single); 634 } 635 636 /** 637 * Update comment meta field based on comment ID. 638 * 639 * Use the $prev_value parameter to differentiate between meta fields with the 640 * same key and comment ID. 641 * 642 * If the meta field for the comment does not exist, it will be added. 643 * 644 * @since 2.9.0 645 * @uses update_metadata 646 * @link http://codex.wordpress.org/Function_Reference/update_comment_meta 647 * 648 * @param int $comment_id Comment ID. 649 * @param string $meta_key Metadata key. 650 * @param mixed $meta_value Metadata value. 651 * @param mixed $prev_value Optional. Previous value to check before removing. 652 * @return bool True on success, false on failure. 653 */ 654 function update_comment_meta($comment_id, $meta_key, $meta_value, $prev_value = '') { 655 return update_metadata('comment', $comment_id, $meta_key, $meta_value, $prev_value); 656 } 657 658 /** 659 * Sets the cookies used to store an unauthenticated commentator's identity. Typically used 660 * to recall previous comments by this commentator that are still held in moderation. 661 * 662 * @param object $comment Comment object. 663 * @param object $user Comment author's object. 664 * 665 * @since 3.4.0 666 */ 667 function wp_set_comment_cookies($comment, $user) { 668 if ( $user->exists() ) 669 return; 670 671 /** 672 * Filter the lifetime of the comment cookie in seconds. 673 * 674 * @since 2.8.0 675 * 676 * @param int $seconds Comment cookie lifetime. Default 30000000. 677 */ 678 $comment_cookie_lifetime = apply_filters( 'comment_cookie_lifetime', 30000000 ); 679 setcookie('comment_author_' . COOKIEHASH, $comment->comment_author, time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN); 680 setcookie('comment_author_email_' . COOKIEHASH, $comment->comment_author_email, time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN); 681 setcookie('comment_author_url_' . COOKIEHASH, esc_url($comment->comment_author_url), time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN); 682 } 683 684 /** 685 * Sanitizes the cookies sent to the user already. 686 * 687 * Will only do anything if the cookies have already been created for the user. 688 * Mostly used after cookies had been sent to use elsewhere. 689 * 690 * @since 2.0.4 691 */ 692 function sanitize_comment_cookies() { 693 if ( isset( $_COOKIE['comment_author_' . COOKIEHASH] ) ) { 694 /** 695 * Filter the comment author's name cookie before it is set. 696 * 697 * When this filter hook is evaluated in wp_filter_comment(), 698 * the comment author's name string is passed. 699 * 700 * @since 1.5.0 701 * 702 * @param string $author_cookie The comment author name cookie. 703 */ 704 $comment_author = apply_filters( 'pre_comment_author_name', $_COOKIE['comment_author_' . COOKIEHASH] ); 705 $comment_author = wp_unslash($comment_author); 706 $comment_author = esc_attr($comment_author); 707 $_COOKIE['comment_author_' . COOKIEHASH] = $comment_author; 708 } 709 710 if ( isset( $_COOKIE['comment_author_email_' . COOKIEHASH] ) ) { 711 /** 712 * Filter the comment author's email cookie before it is set. 713 * 714 * When this filter hook is evaluated in wp_filter_comment(), 715 * the comment author's email string is passed. 716 * 717 * @since 1.5.0 718 * 719 * @param string $author_email_cookie The comment author email cookie. 720 */ 721 $comment_author_email = apply_filters( 'pre_comment_author_email', $_COOKIE['comment_author_email_' . COOKIEHASH] ); 722 $comment_author_email = wp_unslash($comment_author_email); 723 $comment_author_email = esc_attr($comment_author_email); 724 $_COOKIE['comment_author_email_'.COOKIEHASH] = $comment_author_email; 725 } 726 727 if ( isset( $_COOKIE['comment_author_url_' . COOKIEHASH] ) ) { 728 /** 729 * Filter the comment author's URL cookie before it is set. 730 * 731 * When this filter hook is evaluated in wp_filter_comment(), 732 * the comment author's URL string is passed. 733 * 734 * @since 1.5.0 735 * 736 * @param string $author_url_cookie The comment author URL cookie. 737 */ 738 $comment_author_url = apply_filters( 'pre_comment_author_url', $_COOKIE['comment_author_url_' . COOKIEHASH] ); 739 $comment_author_url = wp_unslash($comment_author_url); 740 $_COOKIE['comment_author_url_'.COOKIEHASH] = $comment_author_url; 741 } 742 } 743 744 /** 745 * Validates whether this comment is allowed to be made. 746 * 747 * @since 2.0.0 748 * @uses $wpdb 749 * @uses apply_filters() Calls 'pre_comment_approved' hook on the type of comment 750 * @uses apply_filters() Calls 'comment_duplicate_trigger' hook on commentdata. 751 * @uses do_action() Calls 'check_comment_flood' hook on $comment_author_IP, $comment_author_email, and $comment_date_gmt 752 * 753 * @param array $commentdata Contains information on the comment 754 * @return mixed Signifies the approval status (0|1|'spam') 755 */ 756 function wp_allow_comment($commentdata) { 757 global $wpdb; 758 extract($commentdata, EXTR_SKIP); 759 760 // Simple duplicate check 761 // expected_slashed ($comment_post_ID, $comment_author, $comment_author_email, $comment_content) 762 $dupe = $wpdb->prepare( "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_parent = %s AND comment_approved != 'trash' AND ( comment_author = %s ", wp_unslash( $comment_post_ID ), wp_unslash( $comment_parent ), wp_unslash( $comment_author ) ); 763 if ( $comment_author_email ) 764 $dupe .= $wpdb->prepare( "OR comment_author_email = %s ", wp_unslash( $comment_author_email ) ); 765 $dupe .= $wpdb->prepare( ") AND comment_content = %s LIMIT 1", wp_unslash( $comment_content ) ); 766 if ( $wpdb->get_var($dupe) ) { 767 /** 768 * Fires immediately after a duplicate comment is detected. 769 * 770 * @since 3.0.0 771 * 772 * @param array $commentdata Comment data. 773 */ 774 do_action( 'comment_duplicate_trigger', $commentdata ); 775 if ( defined('DOING_AJAX') ) 776 die( __('Duplicate comment detected; it looks as though you’ve already said that!') ); 777 778 wp_die( __('Duplicate comment detected; it looks as though you’ve already said that!') ); 779 } 780 781 /** 782 * Fires immediately before a comment is marked approved. 783 * 784 * Allows checking for comment flooding. 785 * 786 * @since 2.3.0 787 * 788 * @param string $comment_author_IP Comment author's IP address. 789 * @param string $comment_author_email Comment author's email. 790 * @param string $comment_date_gmt GMT date the comment was posted. 791 */ 792 do_action( 'check_comment_flood', $comment_author_IP, $comment_author_email, $comment_date_gmt ); 793 794 if ( ! empty( $user_id ) ) { 795 $user = get_userdata( $user_id ); 796 $post_author = $wpdb->get_var($wpdb->prepare("SELECT post_author FROM $wpdb->posts WHERE ID = %d LIMIT 1", $comment_post_ID)); 797 } 798 799 if ( isset( $user ) && ( $user_id == $post_author || $user->has_cap( 'moderate_comments' ) ) ) { 800 // The author and the admins get respect. 801 $approved = 1; 802 } else { 803 // Everyone else's comments will be checked. 804 if ( check_comment($comment_author, $comment_author_email, $comment_author_url, $comment_content, $comment_author_IP, $comment_agent, $comment_type) ) 805 $approved = 1; 806 else 807 $approved = 0; 808 if ( wp_blacklist_check($comment_author, $comment_author_email, $comment_author_url, $comment_content, $comment_author_IP, $comment_agent) ) 809 $approved = 'spam'; 810 } 811 812 /** 813 * Filter a comment's approval status before it is set. 814 * 815 * @since 2.1.0 816 * 817 * @param bool|string $approved The approval status. Accepts 1, 0, or 'spam'. 818 * @param array $commentdata Comment data. 819 */ 820 $approved = apply_filters( 'pre_comment_approved', $approved, $commentdata ); 821 return $approved; 822 } 823 824 /** 825 * Check whether comment flooding is occurring. 826 * 827 * Won't run, if current user can manage options, so to not block 828 * administrators. 829 * 830 * @since 2.3.0 831 * @uses $wpdb 832 * @uses apply_filters() Calls 'comment_flood_filter' filter with first 833 * parameter false, last comment timestamp, new comment timestamp. 834 * @uses do_action() Calls 'comment_flood_trigger' action with parameters with 835 * last comment timestamp and new comment timestamp. 836 * 837 * @param string $ip Comment IP. 838 * @param string $email Comment author email address. 839 * @param string $date MySQL time string. 840 */ 841 function check_comment_flood_db( $ip, $email, $date ) { 842 global $wpdb; 843 if ( current_user_can( 'manage_options' ) ) 844 return; // don't throttle admins 845 $hour_ago = gmdate( 'Y-m-d H:i:s', time() - HOUR_IN_SECONDS ); 846 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 ) ) ) { 847 $time_lastcomment = mysql2date('U', $lasttime, false); 848 $time_newcomment = mysql2date('U', $date, false); 849 /** 850 * Filter the comment flood status. 851 * 852 * @since 2.1.0 853 * 854 * @param bool $bool Whether a comment flood is occurring. Default false. 855 * @param int $time_lastcomment Timestamp of when the last comment was posted. 856 * @param int $time_newcomment Timestamp of when the new comment was posted. 857 */ 858 $flood_die = apply_filters( 'comment_flood_filter', false, $time_lastcomment, $time_newcomment ); 859 if ( $flood_die ) { 860 /** 861 * Fires before the comment flood message is triggered. 862 * 863 * @since 1.5.0 864 * 865 * @param int $time_lastcomment Timestamp of when the last comment was posted. 866 * @param int $time_newcomment Timestamp of when the new comment was posted. 867 */ 868 do_action( 'comment_flood_trigger', $time_lastcomment, $time_newcomment ); 869 870 if ( defined('DOING_AJAX') ) 871 die( __('You are posting comments too quickly. Slow down.') ); 872 873 wp_die( __('You are posting comments too quickly. Slow down.'), '', array('response' => 403) ); 874 } 875 } 876 } 877 878 /** 879 * Separates an array of comments into an array keyed by comment_type. 880 * 881 * @since 2.7.0 882 * 883 * @param array $comments Array of comments 884 * @return array Array of comments keyed by comment_type. 885 */ 886 function separate_comments(&$comments) { 887 $comments_by_type = array('comment' => array(), 'trackback' => array(), 'pingback' => array(), 'pings' => array()); 888 $count = count($comments); 889 for ( $i = 0; $i < $count; $i++ ) { 890 $type = $comments[$i]->comment_type; 891 if ( empty($type) ) 892 $type = 'comment'; 893 $comments_by_type[$type][] = &$comments[$i]; 894 if ( 'trackback' == $type || 'pingback' == $type ) 895 $comments_by_type['pings'][] = &$comments[$i]; 896 } 897 898 return $comments_by_type; 899 } 900 901 /** 902 * Calculate the total number of comment pages. 903 * 904 * @since 2.7.0 905 * @uses get_query_var() Used to fill in the default for $per_page parameter. 906 * @uses get_option() Used to fill in defaults for parameters. 907 * @uses Walker_Comment 908 * 909 * @param array $comments Optional array of comment objects. Defaults to $wp_query->comments 910 * @param int $per_page Optional comments per page. 911 * @param boolean $threaded Optional control over flat or threaded comments. 912 * @return int Number of comment pages. 913 */ 914 function get_comment_pages_count( $comments = null, $per_page = null, $threaded = null ) { 915 global $wp_query; 916 917 if ( null === $comments && null === $per_page && null === $threaded && !empty($wp_query->max_num_comment_pages) ) 918 return $wp_query->max_num_comment_pages; 919 920 if ( !$comments || !is_array($comments) ) 921 $comments = $wp_query->comments; 922 923 if ( empty($comments) ) 924 return 0; 925 926 if ( ! get_option( 'page_comments' ) ) 927 return 1; 928 929 if ( !isset($per_page) ) 930 $per_page = (int) get_query_var('comments_per_page'); 931 if ( 0 === $per_page ) 932 $per_page = (int) get_option('comments_per_page'); 933 if ( 0 === $per_page ) 934 return 1; 935 936 if ( !isset($threaded) ) 937 $threaded = get_option('thread_comments'); 938 939 if ( $threaded ) { 940 $walker = new Walker_Comment; 941 $count = ceil( $walker->get_number_of_root_elements( $comments ) / $per_page ); 942 } else { 943 $count = ceil( count( $comments ) / $per_page ); 944 } 945 946 return $count; 947 } 948 949 /** 950 * Calculate what page number a comment will appear on for comment paging. 951 * 952 * @since 2.7.0 953 * @uses get_comment() Gets the full comment of the $comment_ID parameter. 954 * @uses get_option() Get various settings to control function and defaults. 955 * @uses get_page_of_comment() Used to loop up to top level comment. 956 * 957 * @param int $comment_ID Comment ID. 958 * @param array $args Optional args. 959 * @return int|null Comment page number or null on error. 960 */ 961 function get_page_of_comment( $comment_ID, $args = array() ) { 962 global $wpdb; 963 964 if ( !$comment = get_comment( $comment_ID ) ) 965 return; 966 967 $defaults = array( 'type' => 'all', 'page' => '', 'per_page' => '', 'max_depth' => '' ); 968 $args = wp_parse_args( $args, $defaults ); 969 970 if ( '' === $args['per_page'] && get_option('page_comments') ) 971 $args['per_page'] = get_query_var('comments_per_page'); 972 if ( empty($args['per_page']) ) { 973 $args['per_page'] = 0; 974 $args['page'] = 0; 975 } 976 if ( $args['per_page'] < 1 ) 977 return 1; 978 979 if ( '' === $args['max_depth'] ) { 980 if ( get_option('thread_comments') ) 981 $args['max_depth'] = get_option('thread_comments_depth'); 982 else 983 $args['max_depth'] = -1; 984 } 985 986 // Find this comment's top level parent if threading is enabled 987 if ( $args['max_depth'] > 1 && 0 != $comment->comment_parent ) 988 return get_page_of_comment( $comment->comment_parent, $args ); 989 990 $allowedtypes = array( 991 'comment' => '', 992 'pingback' => 'pingback', 993 'trackback' => 'trackback', 994 ); 995 996 $comtypewhere = ( 'all' != $args['type'] && isset($allowedtypes[$args['type']]) ) ? " AND comment_type = '" . $allowedtypes[$args['type']] . "'" : ''; 997 998 // Count comments older than this one 999 $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 ) ); 1000 1001 // No older comments? Then it's page #1. 1002 if ( 0 == $oldercoms ) 1003 return 1; 1004 1005 // Divide comments older than this one by comments per page to get this comment's page number 1006 return ceil( ( $oldercoms + 1 ) / $args['per_page'] ); 1007 } 1008 1009 /** 1010 * Does comment contain blacklisted characters or words. 1011 * 1012 * @since 1.5.0 1013 * @uses do_action() Calls 'wp_blacklist_check' hook for all parameters. 1014 * 1015 * @param string $author The author of the comment 1016 * @param string $email The email of the comment 1017 * @param string $url The url used in the comment 1018 * @param string $comment The comment content 1019 * @param string $user_ip The comment author IP address 1020 * @param string $user_agent The author's browser user agent 1021 * @return bool True if comment contains blacklisted content, false if comment does not 1022 */ 1023 function wp_blacklist_check($author, $email, $url, $comment, $user_ip, $user_agent) { 1024 /** 1025 * Fires before the comment is tested for blacklisted characters or words. 1026 * 1027 * @since 1.5.0 1028 * 1029 * @param string $author Comment author. 1030 * @param string $email Comment author's email. 1031 * @param string $url Comment author's URL. 1032 * @param string $comment Comment content. 1033 * @param string $user_ip Comment author's IP address. 1034 * @param string $user_agent Comment author's browser user agent. 1035 */ 1036 do_action( 'wp_blacklist_check', $author, $email, $url, $comment, $user_ip, $user_agent ); 1037 1038 $mod_keys = trim( get_option('blacklist_keys') ); 1039 if ( '' == $mod_keys ) 1040 return false; // If moderation keys are empty 1041 $words = explode("\n", $mod_keys ); 1042 1043 foreach ( (array) $words as $word ) { 1044 $word = trim($word); 1045 1046 // Skip empty lines 1047 if ( empty($word) ) { continue; } 1048 1049 // Do some escaping magic so that '#' chars in the 1050 // spam words don't break things: 1051 $word = preg_quote($word, '#'); 1052 1053 $pattern = "#$word#i"; 1054 if ( 1055 preg_match($pattern, $author) 1056 || preg_match($pattern, $email) 1057 || preg_match($pattern, $url) 1058 || preg_match($pattern, $comment) 1059 || preg_match($pattern, $user_ip) 1060 || preg_match($pattern, $user_agent) 1061 ) 1062 return true; 1063 } 1064 return false; 1065 } 1066 1067 /** 1068 * Retrieve total comments for blog or single post. 1069 * 1070 * The properties of the returned object contain the 'moderated', 'approved', 1071 * and spam comments for either the entire blog or single post. Those properties 1072 * contain the amount of comments that match the status. The 'total_comments' 1073 * property contains the integer of total comments. 1074 * 1075 * The comment stats are cached and then retrieved, if they already exist in the 1076 * cache. 1077 * 1078 * @since 2.5.0 1079 * 1080 * @param int $post_id Optional. Post ID. 1081 * @return object Comment stats. 1082 */ 1083 function wp_count_comments( $post_id = 0 ) { 1084 global $wpdb; 1085 1086 $post_id = (int) $post_id; 1087 1088 /** 1089 * Filter the comments count for a given post. 1090 * 1091 * @since 2.7.0 1092 * 1093 * @param array $count An empty array. 1094 * @param int $post_id The post ID. 1095 */ 1096 $stats = apply_filters( 'wp_count_comments', array(), $post_id ); 1097 if ( !empty($stats) ) 1098 return $stats; 1099 1100 $count = wp_cache_get("comments-{$post_id}", 'counts'); 1101 1102 if ( false !== $count ) 1103 return $count; 1104 1105 $where = ''; 1106 if ( $post_id > 0 ) 1107 $where = $wpdb->prepare( "WHERE comment_post_ID = %d", $post_id ); 1108 1109 $count = $wpdb->get_results( "SELECT comment_approved, COUNT( * ) AS num_comments FROM {$wpdb->comments} {$where} GROUP BY comment_approved", ARRAY_A ); 1110 1111 $total = 0; 1112 $approved = array('0' => 'moderated', '1' => 'approved', 'spam' => 'spam', 'trash' => 'trash', 'post-trashed' => 'post-trashed'); 1113 foreach ( (array) $count as $row ) { 1114 // Don't count post-trashed toward totals 1115 if ( 'post-trashed' != $row['comment_approved'] && 'trash' != $row['comment_approved'] ) 1116 $total += $row['num_comments']; 1117 if ( isset( $approved[$row['comment_approved']] ) ) 1118 $stats[$approved[$row['comment_approved']]] = $row['num_comments']; 1119 } 1120 1121 $stats['total_comments'] = $total; 1122 foreach ( $approved as $key ) { 1123 if ( empty($stats[$key]) ) 1124 $stats[$key] = 0; 1125 } 1126 1127 $stats = (object) $stats; 1128 wp_cache_set("comments-{$post_id}", $stats, 'counts'); 1129 1130 return $stats; 1131 } 1132 1133 /** 1134 * Trashes or deletes a comment. 1135 * 1136 * The comment is moved to trash instead of permanently deleted unless trash is 1137 * disabled, item is already in the trash, or $force_delete is true. 1138 * 1139 * The post comment count will be updated if the comment was approved and has a 1140 * post ID available. 1141 * 1142 * @since 2.0.0 1143 * @uses $wpdb 1144 * @uses do_action() Calls 'delete_comment' hook on comment ID 1145 * @uses do_action() Calls 'deleted_comment' hook on comment ID after deletion, on success 1146 * @uses do_action() Calls 'wp_set_comment_status' hook on comment ID with 'delete' set for the second parameter 1147 * @uses wp_transition_comment_status() Passes new and old comment status along with $comment object 1148 * 1149 * @param int $comment_id Comment ID 1150 * @param bool $force_delete Whether to bypass trash and force deletion. Default is false. 1151 * @return bool True on success, false on failure. 1152 */ 1153 function wp_delete_comment($comment_id, $force_delete = false) { 1154 global $wpdb; 1155 if (!$comment = get_comment($comment_id)) 1156 return false; 1157 1158 if ( !$force_delete && EMPTY_TRASH_DAYS && !in_array( wp_get_comment_status($comment_id), array( 'trash', 'spam' ) ) ) 1159 return wp_trash_comment($comment_id); 1160 1161 /** 1162 * Fires immediately before a comment is deleted from the database. 1163 * 1164 * @since 1.2.0 1165 * 1166 * @param int $comment_id The comment ID. 1167 */ 1168 do_action( 'delete_comment', $comment_id ); 1169 1170 // Move children up a level. 1171 $children = $wpdb->get_col( $wpdb->prepare("SELECT comment_ID FROM $wpdb->comments WHERE comment_parent = %d", $comment_id) ); 1172 if ( !empty($children) ) { 1173 $wpdb->update($wpdb->comments, array('comment_parent' => $comment->comment_parent), array('comment_parent' => $comment_id)); 1174 clean_comment_cache($children); 1175 } 1176 1177 // Delete metadata 1178 $meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM $wpdb->commentmeta WHERE comment_id = %d", $comment_id ) ); 1179 foreach ( $meta_ids as $mid ) 1180 delete_metadata_by_mid( 'comment', $mid ); 1181 1182 if ( ! $wpdb->delete( $wpdb->comments, array( 'comment_ID' => $comment_id ) ) ) 1183 return false; 1184 1185 /** 1186 * Fires immediately after a comment is deleted from the database. 1187 * 1188 * @since 2.9.0 1189 * 1190 * @param int $comment_id The comment ID. 1191 */ 1192 do_action( 'deleted_comment', $comment_id ); 1193 1194 $post_id = $comment->comment_post_ID; 1195 if ( $post_id && $comment->comment_approved == 1 ) 1196 wp_update_comment_count($post_id); 1197 1198 clean_comment_cache($comment_id); 1199 1200 /** 1201 * Fires immediately before changing the comment's status to 'delete'. 1202 * 1203 * @since 1.5.0 1204 * 1205 * @param int $comment_id The comment ID. 1206 * @param string $status The new 'delete' comment status. 1207 */ 1208 do_action( 'wp_set_comment_status', $comment_id, 'delete' ); 1209 wp_transition_comment_status('delete', $comment->comment_approved, $comment); 1210 return true; 1211 } 1212 1213 /** 1214 * Moves a comment to the Trash 1215 * 1216 * If trash is disabled, comment is permanently deleted. 1217 * 1218 * @since 2.9.0 1219 * @uses do_action() on 'trash_comment' before trashing 1220 * @uses do_action() on 'trashed_comment' after trashing 1221 * @uses wp_delete_comment() if trash is disabled 1222 * 1223 * @param int $comment_id Comment ID. 1224 * @return bool True on success, false on failure. 1225 */ 1226 function wp_trash_comment($comment_id) { 1227 if ( !EMPTY_TRASH_DAYS ) 1228 return wp_delete_comment($comment_id, true); 1229 1230 if ( !$comment = get_comment($comment_id) ) 1231 return false; 1232 1233 /** 1234 * Fires immediately before a comment is sent to the Trash. 1235 * 1236 * @since 2.9.0 1237 * 1238 * @param int $comment_id The comment ID. 1239 */ 1240 do_action( 'trash_comment', $comment_id ); 1241 1242 if ( wp_set_comment_status($comment_id, 'trash') ) { 1243 add_comment_meta($comment_id, '_wp_trash_meta_status', $comment->comment_approved); 1244 add_comment_meta($comment_id, '_wp_trash_meta_time', time() ); 1245 1246 /** 1247 * Fires immediately after a comment is sent to Trash. 1248 * 1249 * @since 2.9.0 1250 * 1251 * @param int $comment_id The comment ID. 1252 */ 1253 do_action( 'trashed_comment', $comment_id ); 1254 return true; 1255 } 1256 1257 return false; 1258 } 1259 1260 /** 1261 * Removes a comment from the Trash 1262 * 1263 * @since 2.9.0 1264 * @uses do_action() on 'untrash_comment' before untrashing 1265 * @uses do_action() on 'untrashed_comment' after untrashing 1266 * 1267 * @param int $comment_id Comment ID. 1268 * @return bool True on success, false on failure. 1269 */ 1270 function wp_untrash_comment($comment_id) { 1271 if ( ! (int)$comment_id ) 1272 return false; 1273 1274 /** 1275 * Fires immediately before a comment is restored from the Trash. 1276 * 1277 * @since 2.9.0 1278 * 1279 * @param int $comment_id The comment ID. 1280 */ 1281 do_action( 'untrash_comment', $comment_id ); 1282 1283 $status = (string) get_comment_meta($comment_id, '_wp_trash_meta_status', true); 1284 if ( empty($status) ) 1285 $status = '0'; 1286 1287 if ( wp_set_comment_status($comment_id, $status) ) { 1288 delete_comment_meta($comment_id, '_wp_trash_meta_time'); 1289 delete_comment_meta($comment_id, '_wp_trash_meta_status'); 1290 /** 1291 * Fires immediately after a comment is restored from the Trash. 1292 * 1293 * @since 2.9.0 1294 * 1295 * @param int $comment_id The comment ID. 1296 */ 1297 do_action( 'untrashed_comment', $comment_id ); 1298 return true; 1299 } 1300 1301 return false; 1302 } 1303 1304 /** 1305 * Marks a comment as Spam 1306 * 1307 * @since 2.9.0 1308 * @uses do_action() on 'spam_comment' before spamming 1309 * @uses do_action() on 'spammed_comment' after spamming 1310 * 1311 * @param int $comment_id Comment ID. 1312 * @return bool True on success, false on failure. 1313 */ 1314 function wp_spam_comment($comment_id) { 1315 if ( !$comment = get_comment($comment_id) ) 1316 return false; 1317 1318 /** 1319 * Fires immediately before a comment is marked as Spam. 1320 * 1321 * @since 2.9.0 1322 * 1323 * @param int $comment_id The comment ID. 1324 */ 1325 do_action( 'spam_comment', $comment_id ); 1326 1327 if ( wp_set_comment_status($comment_id, 'spam') ) { 1328 add_comment_meta($comment_id, '_wp_trash_meta_status', $comment->comment_approved); 1329 /** 1330 * Fires immediately after a comment is marked as Spam. 1331 * 1332 * @since 2.9.0 1333 * 1334 * @param int $comment_id The comment ID. 1335 */ 1336 do_action( 'spammed_comment', $comment_id ); 1337 return true; 1338 } 1339 1340 return false; 1341 } 1342 1343 /** 1344 * Removes a comment from the Spam 1345 * 1346 * @since 2.9.0 1347 * @uses do_action() on 'unspam_comment' before unspamming 1348 * @uses do_action() on 'unspammed_comment' after unspamming 1349 * 1350 * @param int $comment_id Comment ID. 1351 * @return bool True on success, false on failure. 1352 */ 1353 function wp_unspam_comment($comment_id) { 1354 if ( ! (int)$comment_id ) 1355 return false; 1356 1357 /** 1358 * Fires immediately before a comment is unmarked as Spam. 1359 * 1360 * @since 2.9.0 1361 * 1362 * @param int $comment_id The comment ID. 1363 */ 1364 do_action( 'unspam_comment', $comment_id ); 1365 1366 $status = (string) get_comment_meta($comment_id, '_wp_trash_meta_status', true); 1367 if ( empty($status) ) 1368 $status = '0'; 1369 1370 if ( wp_set_comment_status($comment_id, $status) ) { 1371 delete_comment_meta($comment_id, '_wp_trash_meta_status'); 1372 /** 1373 * Fires immediately after a comment is unmarked as Spam. 1374 * 1375 * @since 2.9.0 1376 * 1377 * @param int $comment_id The comment ID. 1378 */ 1379 do_action( 'unspammed_comment', $comment_id ); 1380 return true; 1381 } 1382 1383 return false; 1384 } 1385 1386 /** 1387 * The status of a comment by ID. 1388 * 1389 * @since 1.0.0 1390 * 1391 * @param int $comment_id Comment ID 1392 * @return string|bool Status might be 'trash', 'approved', 'unapproved', 'spam'. False on failure. 1393 */ 1394 function wp_get_comment_status($comment_id) { 1395 $comment = get_comment($comment_id); 1396 if ( !$comment ) 1397 return false; 1398 1399 $approved = $comment->comment_approved; 1400 1401 if ( $approved == null ) 1402 return false; 1403 elseif ( $approved == '1' ) 1404 return 'approved'; 1405 elseif ( $approved == '0' ) 1406 return 'unapproved'; 1407 elseif ( $approved == 'spam' ) 1408 return 'spam'; 1409 elseif ( $approved == 'trash' ) 1410 return 'trash'; 1411 else 1412 return false; 1413 } 1414 1415 /** 1416 * Call hooks for when a comment status transition occurs. 1417 * 1418 * Calls hooks for comment status transitions. If the new comment status is not the same 1419 * as the previous comment status, then two hooks will be ran, the first is 1420 * 'transition_comment_status' with new status, old status, and comment data. The 1421 * next action called is 'comment_OLDSTATUS_to_NEWSTATUS' the NEWSTATUS is the 1422 * $new_status parameter and the OLDSTATUS is $old_status parameter; it has the 1423 * comment data. 1424 * 1425 * The final action will run whether or not the comment statuses are the same. The 1426 * action is named 'comment_NEWSTATUS_COMMENTTYPE', NEWSTATUS is from the $new_status 1427 * parameter and COMMENTTYPE is comment_type comment data. 1428 * 1429 * @since 2.7.0 1430 * 1431 * @param string $new_status New comment status. 1432 * @param string $old_status Previous comment status. 1433 * @param object $comment Comment data. 1434 */ 1435 function wp_transition_comment_status($new_status, $old_status, $comment) { 1436 /* 1437 * Translate raw statuses to human readable formats for the hooks. 1438 * This is not a complete list of comment status, it's only the ones 1439 * that need to be renamed 1440 */ 1441 $comment_statuses = array( 1442 0 => 'unapproved', 1443 'hold' => 'unapproved', // wp_set_comment_status() uses "hold" 1444 1 => 'approved', 1445 'approve' => 'approved', // wp_set_comment_status() uses "approve" 1446 ); 1447 if ( isset($comment_statuses[$new_status]) ) $new_status = $comment_statuses[$new_status]; 1448 if ( isset($comment_statuses[$old_status]) ) $old_status = $comment_statuses[$old_status]; 1449 1450 // Call the hooks 1451 if ( $new_status != $old_status ) { 1452 /** 1453 * Fires when the comment status is in transition. 1454 * 1455 * @since 2.7.0 1456 * 1457 * @param int|string $new_status The new comment status. 1458 * @param int|string $old_status The old comment status. 1459 * @param object $comment The comment data. 1460 */ 1461 do_action( 'transition_comment_status', $new_status, $old_status, $comment ); 1462 /** 1463 * Fires when the comment status is in transition from one specific status to another. 1464 * 1465 * The dynamic portions of the hook name, $old_status, and $new_status, 1466 * refer to the old and new comment statuses, respectively. 1467 * 1468 * @since 2.7.0 1469 * 1470 * @param object $comment Comment object. 1471 */ 1472 do_action( "comment_{$old_status}_to_{$new_status}", $comment ); 1473 } 1474 /** 1475 * Fires when the status of a specific comment type is in transition. 1476 * 1477 * The dynamic portions of the hook name, $new_status, and $comment->comment_type, 1478 * refer to the new comment status, and the type of comment, respectively. 1479 * 1480 * Typical comment types include an empty string (standard comment), 'pingback', 1481 * or 'trackback'. 1482 * 1483 * @since 2.7.0 1484 * 1485 * @param int $comment_ID The comment ID. 1486 * @param obj $comment Comment object. 1487 */ 1488 do_action( "comment_{$new_status}_{$comment->comment_type}", $comment->comment_ID, $comment ); 1489 } 1490 1491 /** 1492 * Get current commenter's name, email, and URL. 1493 * 1494 * Expects cookies content to already be sanitized. User of this function might 1495 * wish to recheck the returned array for validity. 1496 * 1497 * @see sanitize_comment_cookies() Use to sanitize cookies 1498 * 1499 * @since 2.0.4 1500 * 1501 * @return array Comment author, email, url respectively. 1502 */ 1503 function wp_get_current_commenter() { 1504 // Cookies should already be sanitized. 1505 1506 $comment_author = ''; 1507 if ( isset($_COOKIE['comment_author_'.COOKIEHASH]) ) 1508 $comment_author = $_COOKIE['comment_author_'.COOKIEHASH]; 1509 1510 $comment_author_email = ''; 1511 if ( isset($_COOKIE['comment_author_email_'.COOKIEHASH]) ) 1512 $comment_author_email = $_COOKIE['comment_author_email_'.COOKIEHASH]; 1513 1514 $comment_author_url = ''; 1515 if ( isset($_COOKIE['comment_author_url_'.COOKIEHASH]) ) 1516 $comment_author_url = $_COOKIE['comment_author_url_'.COOKIEHASH]; 1517 1518 /** 1519 * Filter the current commenter's name, email, and URL. 1520 * 1521 * @since 3.1.0 1522 * 1523 * @param string $comment_author Comment author's name. 1524 * @param string $comment_author_email Comment author's email. 1525 * @param string $comment_author_url Comment author's URL. 1526 */ 1527 return apply_filters( 'wp_get_current_commenter', compact('comment_author', 'comment_author_email', 'comment_author_url') ); 1528 } 1529 1530 /** 1531 * Inserts a comment to the database. 1532 * 1533 * The available comment data key names are 'comment_author_IP', 'comment_date', 1534 * 'comment_date_gmt', 'comment_parent', 'comment_approved', and 'user_id'. 1535 * 1536 * @since 2.0.0 1537 * @uses $wpdb 1538 * 1539 * @param array $commentdata Contains information on the comment. 1540 * @return int The new comment's ID. 1541 */ 1542 function wp_insert_comment($commentdata) { 1543 global $wpdb; 1544 extract(wp_unslash($commentdata), EXTR_SKIP); 1545 1546 if ( ! isset($comment_author_IP) ) 1547 $comment_author_IP = ''; 1548 if ( ! isset($comment_date) ) 1549 $comment_date = current_time('mysql'); 1550 if ( ! isset($comment_date_gmt) ) 1551 $comment_date_gmt = get_gmt_from_date($comment_date); 1552 if ( ! isset($comment_parent) ) 1553 $comment_parent = 0; 1554 if ( ! isset($comment_approved) ) 1555 $comment_approved = 1; 1556 if ( ! isset($comment_karma) ) 1557 $comment_karma = 0; 1558 if ( ! isset($user_id) ) 1559 $user_id = 0; 1560 if ( ! isset($comment_type) ) 1561 $comment_type = ''; 1562 1563 $data = 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'); 1564 $wpdb->insert($wpdb->comments, $data); 1565 1566 $id = (int) $wpdb->insert_id; 1567 1568 if ( $comment_approved == 1 ) 1569 wp_update_comment_count($comment_post_ID); 1570 1571 $comment = get_comment($id); 1572 1573 /** 1574 * Fires immediately after a comment is inserted into the database. 1575 * 1576 * @since 2.8.0 1577 * 1578 * @param int $id The comment ID. 1579 * @param obj $comment Comment object. 1580 */ 1581 do_action( 'wp_insert_comment', $id, $comment ); 1582 1583 wp_cache_set( 'last_changed', microtime(), 'comment' ); 1584 1585 return $id; 1586 } 1587 1588 /** 1589 * Filters and sanitizes comment data. 1590 * 1591 * Sets the comment data 'filtered' field to true when finished. This can be 1592 * checked as to whether the comment should be filtered and to keep from 1593 * filtering the same comment more than once. 1594 * 1595 * @since 2.0.0 1596 * 1597 * @param array $commentdata Contains information on the comment. 1598 * @return array Parsed comment information. 1599 */ 1600 function wp_filter_comment($commentdata) { 1601 if ( isset( $commentdata['user_ID'] ) ) { 1602 /** 1603 * Filter the comment author's user id before it is set. 1604 * 1605 * The first time this filter is evaluated, 'user_ID' is checked 1606 * (for back-compat), followed by the standard 'user_id' value. 1607 * 1608 * @since 1.5.0 1609 * 1610 * @param int $user_ID The comment author's user ID. 1611 */ 1612 $commentdata['user_id'] = apply_filters( 'pre_user_id', $commentdata['user_ID'] ); 1613 } elseif ( isset( $commentdata['user_id'] ) ) { 1614 /** This filter is documented in wp-includes/comment.php */ 1615 $commentdata['user_id'] = apply_filters( 'pre_user_id', $commentdata['user_id'] ); 1616 } 1617 1618 /** 1619 * Filter the comment author's browser user agent before it is set. 1620 * 1621 * @since 1.5.0 1622 * 1623 * @param int $comment_agent The comment author's browser user agent. 1624 */ 1625 $commentdata['comment_agent'] = apply_filters( 'pre_comment_user_agent', ( isset( $commentdata['comment_agent'] ) ? $commentdata['comment_agent'] : '' ) ); 1626 /** This filter is documented in wp-includes/comment.php */ 1627 $commentdata['comment_author'] = apply_filters( 'pre_comment_author_name', $commentdata['comment_author'] ); 1628 /** 1629 * Filter the comment content before it is set. 1630 * 1631 * @since 1.5.0 1632 * 1633 * @param int $comment_content The comment content. 1634 */ 1635 $commentdata['comment_content'] = apply_filters( 'pre_comment_content', $commentdata['comment_content'] ); 1636 /** 1637 * Filter the comment author's IP before it is set. 1638 * 1639 * @since 1.5.0 1640 * 1641 * @param int $comment_author_ip The comment author's IP. 1642 */ 1643 $commentdata['comment_author_IP'] = apply_filters( 'pre_comment_user_ip', $commentdata['comment_author_IP'] ); 1644 /** This filter is documented in wp-includes/comment.php */ 1645 $commentdata['comment_author_url'] = apply_filters( 'pre_comment_author_url', $commentdata['comment_author_url'] ); 1646 /** This filter is documented in wp-includes/comment.php */ 1647 $commentdata['comment_author_email'] = apply_filters( 'pre_comment_author_email', $commentdata['comment_author_email'] ); 1648 $commentdata['filtered'] = true; 1649 return $commentdata; 1650 } 1651 1652 /** 1653 * Whether a comment should be blocked because of comment flood. 1654 * 1655 * @since 2.1.0 1656 * 1657 * @param bool $block Whether plugin has already blocked comment. 1658 * @param int $time_lastcomment Timestamp for last comment. 1659 * @param int $time_newcomment Timestamp for new comment. 1660 * @return bool Whether comment should be blocked. 1661 */ 1662 function wp_throttle_comment_flood($block, $time_lastcomment, $time_newcomment) { 1663 if ( $block ) // a plugin has already blocked... we'll let that decision stand 1664 return $block; 1665 if ( ($time_newcomment - $time_lastcomment) < 15 ) 1666 return true; 1667 return false; 1668 } 1669 1670 /** 1671 * Adds a new comment to the database. 1672 * 1673 * Filters new comment to ensure that the fields are sanitized and valid before 1674 * inserting comment into database. Calls 'comment_post' action with comment ID 1675 * and whether comment is approved by WordPress. Also has 'preprocess_comment' 1676 * filter for processing the comment data before the function handles it. 1677 * 1678 * We use REMOTE_ADDR here directly. If you are behind a proxy, you should ensure 1679 * that it is properly set, such as in wp-config.php, for your environment. 1680 * See {@link http://core.trac.wordpress.org/ticket/9235} 1681 * 1682 * @since 1.5.0 1683 * @param array $commentdata Contains information on the comment. 1684 * @return int The ID of the comment after adding. 1685 */ 1686 function wp_new_comment( $commentdata ) { 1687 /** 1688 * Filter a comment's data before it is sanitized and inserted into the database. 1689 * 1690 * @since 1.5.0 1691 * 1692 * @param array $commentdata Comment data. 1693 */ 1694 $commentdata = apply_filters( 'preprocess_comment', $commentdata ); 1695 1696 $commentdata['comment_post_ID'] = (int) $commentdata['comment_post_ID']; 1697 if ( isset($commentdata['user_ID']) ) 1698 $commentdata['user_id'] = $commentdata['user_ID'] = (int) $commentdata['user_ID']; 1699 elseif ( isset($commentdata['user_id']) ) 1700 $commentdata['user_id'] = (int) $commentdata['user_id']; 1701 1702 $commentdata['comment_parent'] = isset($commentdata['comment_parent']) ? absint($commentdata['comment_parent']) : 0; 1703 $parent_status = ( 0 < $commentdata['comment_parent'] ) ? wp_get_comment_status($commentdata['comment_parent']) : ''; 1704 $commentdata['comment_parent'] = ( 'approved' == $parent_status || 'unapproved' == $parent_status ) ? $commentdata['comment_parent'] : 0; 1705 1706 $commentdata['comment_author_IP'] = preg_replace( '/[^0-9a-fA-F:., ]/', '',$_SERVER['REMOTE_ADDR'] ); 1707 $commentdata['comment_agent'] = isset( $_SERVER['HTTP_USER_AGENT'] ) ? substr( $_SERVER['HTTP_USER_AGENT'], 0, 254 ) : ''; 1708 1709 $commentdata['comment_date'] = current_time('mysql'); 1710 $commentdata['comment_date_gmt'] = current_time('mysql', 1); 1711 1712 $commentdata = wp_filter_comment($commentdata); 1713 1714 $commentdata['comment_approved'] = wp_allow_comment($commentdata); 1715 1716 $comment_ID = wp_insert_comment($commentdata); 1717 1718 /** 1719 * Fires immediately after a comment is inserted into the database. 1720 * 1721 * @since 1.2.0 1722 * 1723 * @param int $comment_ID The comment ID. 1724 * @param int $comment_approved 1 (true) if the comment is approved, 0 (false) if not. 1725 */ 1726 do_action( 'comment_post', $comment_ID, $commentdata['comment_approved'] ); 1727 1728 if ( 'spam' !== $commentdata['comment_approved'] ) { // If it's spam save it silently for later crunching 1729 if ( '0' == $commentdata['comment_approved'] ) { 1730 wp_notify_moderator( $comment_ID ); 1731 } 1732 1733 // wp_notify_postauthor() checks if notifying the author of their own comment. 1734 // By default, it won't, but filters can override this. 1735 if ( get_option( 'comments_notify' ) && $commentdata['comment_approved'] ) { 1736 wp_notify_postauthor( $comment_ID ); 1737 } 1738 } 1739 1740 return $comment_ID; 1741 } 1742 1743 /** 1744 * Sets the status of a comment. 1745 * 1746 * The 'wp_set_comment_status' action is called after the comment is handled. 1747 * If the comment status is not in the list, then false is returned. 1748 * 1749 * @since 1.0.0 1750 * @uses wp_transition_comment_status() Passes new and old comment status along with $comment object 1751 * 1752 * @param int $comment_id Comment ID. 1753 * @param string $comment_status New comment status, either 'hold', 'approve', 'spam', or 'trash'. 1754 * @param bool $wp_error Whether to return a WP_Error object if there is a failure. Default is false. 1755 * @return bool|WP_Error True on success, false or WP_Error on failure. 1756 */ 1757 function wp_set_comment_status($comment_id, $comment_status, $wp_error = false) { 1758 global $wpdb; 1759 1760 $status = '0'; 1761 switch ( $comment_status ) { 1762 case 'hold': 1763 case '0': 1764 $status = '0'; 1765 break; 1766 case 'approve': 1767 case '1': 1768 $status = '1'; 1769 if ( get_option('comments_notify') ) { 1770 wp_notify_postauthor( $comment_id ); 1771 } 1772 break; 1773 case 'spam': 1774 $status = 'spam'; 1775 break; 1776 case 'trash': 1777 $status = 'trash'; 1778 break; 1779 default: 1780 return false; 1781 } 1782 1783 $comment_old = clone get_comment($comment_id); 1784 1785 if ( !$wpdb->update( $wpdb->comments, array('comment_approved' => $status), array('comment_ID' => $comment_id) ) ) { 1786 if ( $wp_error ) 1787 return new WP_Error('db_update_error', __('Could not update comment status'), $wpdb->last_error); 1788 else 1789 return false; 1790 } 1791 1792 clean_comment_cache($comment_id); 1793 1794 $comment = get_comment($comment_id); 1795 1796 /** 1797 * Fires after a comment status has been updated in the database. 1798 * 1799 * The hook also fires immediately before comment status transition hooks are fired. 1800 * 1801 * @since 1.5.0 1802 * 1803 * @param int $comment_id The comment ID. 1804 * @param string|bool $comment_status The comment status. Possible values include 'hold', 1805 * 'approve', 'spam', 'trash', or false. 1806 */ 1807 do_action( 'wp_set_comment_status', $comment_id, $comment_status ); 1808 wp_transition_comment_status($comment_status, $comment_old->comment_approved, $comment); 1809 1810 wp_update_comment_count($comment->comment_post_ID); 1811 1812 return true; 1813 } 1814 1815 /** 1816 * Updates an existing comment in the database. 1817 * 1818 * Filters the comment and makes sure certain fields are valid before updating. 1819 * 1820 * @since 2.0.0 1821 * @uses $wpdb 1822 * @uses wp_transition_comment_status() Passes new and old comment status along with $comment object 1823 * 1824 * @param array $commentarr Contains information on the comment. 1825 * @return int Comment was updated if value is 1, or was not updated if value is 0. 1826 */ 1827 function wp_update_comment($commentarr) { 1828 global $wpdb; 1829 1830 // First, get all of the original fields 1831 $comment = get_comment($commentarr['comment_ID'], ARRAY_A); 1832 if ( empty( $comment ) ) 1833 return 0; 1834 1835 // Escape data pulled from DB. 1836 $comment = wp_slash($comment); 1837 1838 $old_status = $comment['comment_approved']; 1839 1840 // Merge old and new fields with new fields overwriting old ones. 1841 $commentarr = array_merge($comment, $commentarr); 1842 1843 $commentarr = wp_filter_comment( $commentarr ); 1844 1845 // Now extract the merged array. 1846 extract(wp_unslash($commentarr), EXTR_SKIP); 1847 1848 /** 1849 * Filter the comment content before it is updated in the database. 1850 * 1851 * @since 1.5.0 1852 * 1853 * @param string $comment_content The comment data. 1854 */ 1855 $comment_content = apply_filters( 'comment_save_pre', $comment_content ); 1856 1857 $comment_date_gmt = get_gmt_from_date($comment_date); 1858 1859 if ( !isset($comment_approved) ) 1860 $comment_approved = 1; 1861 else if ( 'hold' == $comment_approved ) 1862 $comment_approved = 0; 1863 else if ( 'approve' == $comment_approved ) 1864 $comment_approved = 1; 1865 1866 $data = compact( 'comment_content', 'comment_author', 'comment_author_email', 'comment_approved', 'comment_karma', 'comment_author_url', 'comment_date', 'comment_date_gmt', 'comment_parent' ); 1867 $rval = $wpdb->update( $wpdb->comments, $data, compact( 'comment_ID' ) ); 1868 1869 clean_comment_cache($comment_ID); 1870 wp_update_comment_count($comment_post_ID); 1871 /** 1872 * Fires immediately after a comment is updated in the database. 1873 * 1874 * The hook also fires immediately before comment status transition hooks are fired. 1875 * 1876 * @since 1.2.0 1877 * 1878 * @param int $comment_ID The comment ID. 1879 */ 1880 do_action( 'edit_comment', $comment_ID ); 1881 $comment = get_comment($comment_ID); 1882 wp_transition_comment_status($comment->comment_approved, $old_status, $comment); 1883 return $rval; 1884 } 1885 1886 /** 1887 * Whether to defer comment counting. 1888 * 1889 * When setting $defer to true, all post comment counts will not be updated 1890 * until $defer is set to false. When $defer is set to false, then all 1891 * previously deferred updated post comment counts will then be automatically 1892 * updated without having to call wp_update_comment_count() after. 1893 * 1894 * @since 2.5.0 1895 * @staticvar bool $_defer 1896 * 1897 * @param bool $defer 1898 * @return unknown 1899 */ 1900 function wp_defer_comment_counting($defer=null) { 1901 static $_defer = false; 1902 1903 if ( is_bool($defer) ) { 1904 $_defer = $defer; 1905 // flush any deferred counts 1906 if ( !$defer ) 1907 wp_update_comment_count( null, true ); 1908 } 1909 1910 return $_defer; 1911 } 1912 1913 /** 1914 * Updates the comment count for post(s). 1915 * 1916 * When $do_deferred is false (is by default) and the comments have been set to 1917 * be deferred, the post_id will be added to a queue, which will be updated at a 1918 * later date and only updated once per post ID. 1919 * 1920 * If the comments have not be set up to be deferred, then the post will be 1921 * updated. When $do_deferred is set to true, then all previous deferred post 1922 * IDs will be updated along with the current $post_id. 1923 * 1924 * @since 2.1.0 1925 * @see wp_update_comment_count_now() For what could cause a false return value 1926 * 1927 * @param int $post_id Post ID 1928 * @param bool $do_deferred Whether to process previously deferred post comment counts 1929 * @return bool True on success, false on failure 1930 */ 1931 function wp_update_comment_count($post_id, $do_deferred=false) { 1932 static $_deferred = array(); 1933 1934 if ( $do_deferred ) { 1935 $_deferred = array_unique($_deferred); 1936 foreach ( $_deferred as $i => $_post_id ) { 1937 wp_update_comment_count_now($_post_id); 1938 unset( $_deferred[$i] ); /** @todo Move this outside of the foreach and reset $_deferred to an array instead */ 1939 } 1940 } 1941 1942 if ( wp_defer_comment_counting() ) { 1943 $_deferred[] = $post_id; 1944 return true; 1945 } 1946 elseif ( $post_id ) { 1947 return wp_update_comment_count_now($post_id); 1948 } 1949 1950 } 1951 1952 /** 1953 * Updates the comment count for the post. 1954 * 1955 * @since 2.5.0 1956 * @uses $wpdb 1957 * @uses do_action() Calls 'wp_update_comment_count' hook on $post_id, $new, and $old 1958 * @uses do_action() Calls 'edit_posts' hook on $post_id and $post 1959 * 1960 * @param int $post_id Post ID 1961 * @return bool True on success, false on '0' $post_id or if post with ID does not exist. 1962 */ 1963 function wp_update_comment_count_now($post_id) { 1964 global $wpdb; 1965 $post_id = (int) $post_id; 1966 if ( !$post_id ) 1967 return false; 1968 if ( !$post = get_post($post_id) ) 1969 return false; 1970 1971 $old = (int) $post->comment_count; 1972 $new = (int) $wpdb->get_var( $wpdb->prepare("SELECT COUNT(*) FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_approved = '1'", $post_id) ); 1973 $wpdb->update( $wpdb->posts, array('comment_count' => $new), array('ID' => $post_id) ); 1974 1975 clean_post_cache( $post ); 1976 1977 /** 1978 * Fires immediately after a post's comment count is updated in the database. 1979 * 1980 * @since 2.3.0 1981 * 1982 * @param int $post_id Post ID. 1983 * @param int $new The new comment count. 1984 * @param int $old The old comment count. 1985 */ 1986 do_action( 'wp_update_comment_count', $post_id, $new, $old ); 1987 /** This action is documented in wp-includes/post.php */ 1988 do_action( 'edit_post', $post_id, $post ); 1989 1990 return true; 1991 } 1992 1993 // 1994 // Ping and trackback functions. 1995 // 1996 1997 /** 1998 * Finds a pingback server URI based on the given URL. 1999 * 2000 * Checks the HTML for the rel="pingback" link and x-pingback headers. It does 2001 * a check for the x-pingback headers first and returns that, if available. The 2002 * check for the rel="pingback" has more overhead than just the header. 2003 * 2004 * @since 1.5.0 2005 * 2006 * @param string $url URL to ping. 2007 * @param int $deprecated Not Used. 2008 * @return bool|string False on failure, string containing URI on success. 2009 */ 2010 function discover_pingback_server_uri( $url, $deprecated = '' ) { 2011 if ( !empty( $deprecated ) ) 2012 _deprecated_argument( __FUNCTION__, '2.7' ); 2013 2014 $pingback_str_dquote = 'rel="pingback"'; 2015 $pingback_str_squote = 'rel=\'pingback\''; 2016 2017 /** @todo Should use Filter Extension or custom preg_match instead. */ 2018 $parsed_url = parse_url($url); 2019 2020 if ( ! isset( $parsed_url['host'] ) ) // Not an URL. This should never happen. 2021 return false; 2022 2023 //Do not search for a pingback server on our own uploads 2024 $uploads_dir = wp_upload_dir(); 2025 if ( 0 === strpos($url, $uploads_dir['baseurl']) ) 2026 return false; 2027 2028 $response = wp_safe_remote_head( $url, array( 'timeout' => 2, 'httpversion' => '1.0' ) ); 2029 2030 if ( is_wp_error( $response ) ) 2031 return false; 2032 2033 if ( wp_remote_retrieve_header( $response, 'x-pingback' ) ) 2034 return wp_remote_retrieve_header( $response, 'x-pingback' ); 2035 2036 // Not an (x)html, sgml, or xml page, no use going further. 2037 if ( preg_match('#(image|audio|video|model)/#is', wp_remote_retrieve_header( $response, 'content-type' )) ) 2038 return false; 2039 2040 // Now do a GET since we're going to look in the html headers (and we're sure it's not a binary file) 2041 $response = wp_safe_remote_get( $url, array( 'timeout' => 2, 'httpversion' => '1.0' ) ); 2042 2043 if ( is_wp_error( $response ) ) 2044 return false; 2045 2046 $contents = wp_remote_retrieve_body( $response ); 2047 2048 $pingback_link_offset_dquote = strpos($contents, $pingback_str_dquote); 2049 $pingback_link_offset_squote = strpos($contents, $pingback_str_squote); 2050 if ( $pingback_link_offset_dquote || $pingback_link_offset_squote ) { 2051 $quote = ($pingback_link_offset_dquote) ? '"' : '\''; 2052 $pingback_link_offset = ($quote=='"') ? $pingback_link_offset_dquote : $pingback_link_offset_squote; 2053 $pingback_href_pos = @strpos($contents, 'href=', $pingback_link_offset); 2054 $pingback_href_start = $pingback_href_pos+6; 2055 $pingback_href_end = @strpos($contents, $quote, $pingback_href_start); 2056 $pingback_server_url_len = $pingback_href_end - $pingback_href_start; 2057 $pingback_server_url = substr($contents, $pingback_href_start, $pingback_server_url_len); 2058 2059 // We may find rel="pingback" but an incomplete pingback URL 2060 if ( $pingback_server_url_len > 0 ) { // We got it! 2061 return $pingback_server_url; 2062 } 2063 } 2064 2065 return false; 2066 } 2067 2068 /** 2069 * Perform all pingbacks, enclosures, trackbacks, and send to pingback services. 2070 * 2071 * @since 2.1.0 2072 * @uses $wpdb 2073 */ 2074 function do_all_pings() { 2075 global $wpdb; 2076 2077 // Do pingbacks 2078 while ($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")) { 2079 delete_metadata_by_mid( 'post', $ping->meta_id ); 2080 pingback( $ping->post_content, $ping->ID ); 2081 } 2082 2083 // Do Enclosures 2084 while ($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")) { 2085 delete_metadata_by_mid( 'post', $enclosure->meta_id ); 2086 do_enclose( $enclosure->post_content, $enclosure->ID ); 2087 } 2088 2089 // Do Trackbacks 2090 $trackbacks = $wpdb->get_col("SELECT ID FROM $wpdb->posts WHERE to_ping <> '' AND post_status = 'publish'"); 2091 if ( is_array($trackbacks) ) 2092 foreach ( $trackbacks as $trackback ) 2093 do_trackbacks($trackback); 2094 2095 //Do Update Services/Generic Pings 2096 generic_ping(); 2097 } 2098 2099 /** 2100 * Perform trackbacks. 2101 * 2102 * @since 1.5.0 2103 * @uses $wpdb 2104 * 2105 * @param int $post_id Post ID to do trackbacks on. 2106 */ 2107 function do_trackbacks($post_id) { 2108 global $wpdb; 2109 2110 $post = get_post( $post_id ); 2111 $to_ping = get_to_ping($post_id); 2112 $pinged = get_pung($post_id); 2113 if ( empty($to_ping) ) { 2114 $wpdb->update($wpdb->posts, array('to_ping' => ''), array('ID' => $post_id) ); 2115 return; 2116 } 2117 2118 if ( empty($post->post_excerpt) ) { 2119 /** This filter is documented in wp-admin/post-template.php */ 2120 $excerpt = apply_filters( 'the_content', $post->post_content, $post->ID ); 2121 } else { 2122 /** This filter is documented in wp-admin/post-template.php */ 2123 $excerpt = apply_filters( 'the_excerpt', $post->post_excerpt ); 2124 } 2125 2126 $excerpt = str_replace(']]>', ']]>', $excerpt); 2127 $excerpt = wp_html_excerpt($excerpt, 252, '…'); 2128 2129 /** This filter is documented in wp-includes/post-template.php */ 2130 $post_title = apply_filters( 'the_title', $post->post_title, $post->ID ); 2131 $post_title = strip_tags($post_title); 2132 2133 if ( $to_ping ) { 2134 foreach ( (array) $to_ping as $tb_ping ) { 2135 $tb_ping = trim($tb_ping); 2136 if ( !in_array($tb_ping, $pinged) ) { 2137 trackback($tb_ping, $post_title, $excerpt, $post_id); 2138 $pinged[] = $tb_ping; 2139 } else { 2140 $wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET to_ping = TRIM(REPLACE(to_ping, %s, '')) WHERE ID = %d", $tb_ping, $post_id) ); 2141 } 2142 } 2143 } 2144 } 2145 2146 /** 2147 * Sends pings to all of the ping site services. 2148 * 2149 * @since 1.2.0 2150 * 2151 * @param int $post_id Post ID. Not actually used. 2152 * @return int Same as Post ID from parameter 2153 */ 2154 function generic_ping($post_id = 0) { 2155 $services = get_option('ping_sites'); 2156 2157 $services = explode("\n", $services); 2158 foreach ( (array) $services as $service ) { 2159 $service = trim($service); 2160 if ( '' != $service ) 2161 weblog_ping($service); 2162 } 2163 2164 return $post_id; 2165 } 2166 2167 /** 2168 * Pings back the links found in a post. 2169 * 2170 * @since 0.71 2171 * @uses $wp_version 2172 * @uses IXR_Client 2173 * 2174 * @param string $content Post content to check for links. 2175 * @param int $post_ID Post ID. 2176 */ 2177 function pingback($content, $post_ID) { 2178 global $wp_version; 2179 include_once (ABSPATH . WPINC . '/class-IXR.php'); 2180 include_once (ABSPATH . WPINC . '/class-wp-http-ixr-client.php'); 2181 2182 // original code by Mort (http://mort.mine.nu:8080) 2183 $post_links = array(); 2184 2185 $pung = get_pung($post_ID); 2186 2187 // Step 1 2188 // Parsing the post, external links (if any) are stored in the $post_links array 2189 $post_links_temp = wp_extract_urls( $content ); 2190 2191 // Step 2. 2192 // Walking thru the links array 2193 // first we get rid of links pointing to sites, not to specific files 2194 // Example: 2195 // http://dummy-weblog.org 2196 // http://dummy-weblog.org/ 2197 // http://dummy-weblog.org/post.php 2198 // We don't wanna ping first and second types, even if they have a valid <link/> 2199 2200 foreach ( (array) $post_links_temp as $link_test ) : 2201 if ( !in_array($link_test, $pung) && (url_to_postid($link_test) != $post_ID) // If we haven't pung it already and it isn't a link to itself 2202 && !is_local_attachment($link_test) ) : // Also, let's never ping local attachments. 2203 if ( $test = @parse_url($link_test) ) { 2204 if ( isset($test['query']) ) 2205 $post_links[] = $link_test; 2206 elseif ( isset( $test['path'] ) && ( $test['path'] != '/' ) && ( $test['path'] != '' ) ) 2207 $post_links[] = $link_test; 2208 } 2209 endif; 2210 endforeach; 2211 2212 $post_links = array_unique( $post_links ); 2213 /** 2214 * Fires just before pinging back links found in a post. 2215 * 2216 * @since 2.0.0 2217 * 2218 * @param array &$post_links An array of post links to be checked, passed by reference. 2219 * @param array &$pung Whether a link has already been pinged, passed by reference. 2220 * @param int $post_ID The post ID. 2221 */ 2222 do_action_ref_array( 'pre_ping', array( &$post_links, &$pung, $post_ID ) ); 2223 2224 foreach ( (array) $post_links as $pagelinkedto ) { 2225 $pingback_server_url = discover_pingback_server_uri( $pagelinkedto ); 2226 2227 if ( $pingback_server_url ) { 2228 @ set_time_limit( 60 ); 2229 // Now, the RPC call 2230 $pagelinkedfrom = get_permalink($post_ID); 2231 2232 // using a timeout of 3 seconds should be enough to cover slow servers 2233 $client = new WP_HTTP_IXR_Client($pingback_server_url); 2234 $client->timeout = 3; 2235 /** 2236 * Filter the user agent sent when pinging-back a URL. 2237 * 2238 * @since 2.9.0 2239 * 2240 * @param string $concat_useragent The user agent concatenated with ' -- WordPress/' 2241 * and the WordPress version. 2242 * @param string $useragent The useragent. 2243 * @param string $pingback_server_url The server URL being linked to. 2244 * @param string $pagelinkedto URL of page linked to. 2245 * @param string $pagelinkedfrom URL of page linked from. 2246 */ 2247 $client->useragent = apply_filters( 'pingback_useragent', $client->useragent . ' -- WordPress/' . $wp_version, $client->useragent, $pingback_server_url, $pagelinkedto, $pagelinkedfrom ); 2248 // when set to true, this outputs debug messages by itself 2249 $client->debug = false; 2250 2251 if ( $client->query('pingback.ping', $pagelinkedfrom, $pagelinkedto) || ( isset($client->error->code) && 48 == $client->error->code ) ) // Already registered 2252 add_ping( $post_ID, $pagelinkedto ); 2253 } 2254 } 2255 } 2256 2257 /** 2258 * Check whether blog is public before returning sites. 2259 * 2260 * @since 2.1.0 2261 * 2262 * @param mixed $sites Will return if blog is public, will not return if not public. 2263 * @return mixed Empty string if blog is not public, returns $sites, if site is public. 2264 */ 2265 function privacy_ping_filter($sites) { 2266 if ( '0' != get_option('blog_public') ) 2267 return $sites; 2268 else 2269 return ''; 2270 } 2271 2272 /** 2273 * Send a Trackback. 2274 * 2275 * Updates database when sending trackback to prevent duplicates. 2276 * 2277 * @since 0.71 2278 * @uses $wpdb 2279 * 2280 * @param string $trackback_url URL to send trackbacks. 2281 * @param string $title Title of post. 2282 * @param string $excerpt Excerpt of post. 2283 * @param int $ID Post ID. 2284 * @return mixed Database query from update. 2285 */ 2286 function trackback($trackback_url, $title, $excerpt, $ID) { 2287 global $wpdb; 2288 2289 if ( empty($trackback_url) ) 2290 return; 2291 2292 $options = array(); 2293 $options['timeout'] = 4; 2294 $options['body'] = array( 2295 'title' => $title, 2296 'url' => get_permalink($ID), 2297 'blog_name' => get_option('blogname'), 2298 'excerpt' => $excerpt 2299 ); 2300 2301 $response = wp_safe_remote_post( $trackback_url, $options ); 2302 2303 if ( is_wp_error( $response ) ) 2304 return; 2305 2306 $wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET pinged = CONCAT(pinged, '\n', %s) WHERE ID = %d", $trackback_url, $ID) ); 2307 return $wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET to_ping = TRIM(REPLACE(to_ping, %s, '')) WHERE ID = %d", $trackback_url, $ID) ); 2308 } 2309 2310 /** 2311 * Send a pingback. 2312 * 2313 * @since 1.2.0 2314 * @uses $wp_version 2315 * @uses IXR_Client 2316 * 2317 * @param string $server Host of blog to connect to. 2318 * @param string $path Path to send the ping. 2319 */ 2320 function weblog_ping($server = '', $path = '') { 2321 global $wp_version; 2322 include_once (ABSPATH . WPINC . '/class-IXR.php'); 2323 include_once (ABSPATH . WPINC . '/class-wp-http-ixr-client.php'); 2324 2325 // using a timeout of 3 seconds should be enough to cover slow servers 2326 $client = new WP_HTTP_IXR_Client($server, ((!strlen(trim($path)) || ('/' == $path)) ? false : $path)); 2327 $client->timeout = 3; 2328 $client->useragent .= ' -- WordPress/'.$wp_version; 2329 2330 // when set to true, this outputs debug messages by itself 2331 $client->debug = false; 2332 $home = trailingslashit( home_url() ); 2333 if ( !$client->query('weblogUpdates.extendedPing', get_option('blogname'), $home, get_bloginfo('rss2_url') ) ) // then try a normal ping 2334 $client->query('weblogUpdates.ping', get_option('blogname'), $home); 2335 } 2336 2337 /** 2338 * Default filter attached to pingback_ping_source_uri to validate the pingback's Source URI 2339 * 2340 * @since 3.5.1 2341 * @see wp_http_validate_url() 2342 * 2343 * @param string $source_uri 2344 * @return string 2345 */ 2346 function pingback_ping_source_uri( $source_uri ) { 2347 return (string) wp_http_validate_url( $source_uri ); 2348 } 2349 2350 /** 2351 * Default filter attached to xmlrpc_pingback_error. 2352 * 2353 * Returns a generic pingback error code unless the error code is 48, 2354 * which reports that the pingback is already registered. 2355 * 2356 * @since 3.5.1 2357 * @link http://www.hixie.ch/specs/pingback/pingback#TOC3 2358 * 2359 * @param IXR_Error $ixr_error 2360 * @return IXR_Error 2361 */ 2362 function xmlrpc_pingback_error( $ixr_error ) { 2363 if ( $ixr_error->code === 48 ) 2364 return $ixr_error; 2365 return new IXR_Error( 0, '' ); 2366 } 2367 2368 // 2369 // Cache 2370 // 2371 2372 /** 2373 * Removes comment ID from the comment cache. 2374 * 2375 * @since 2.3.0 2376 * @package WordPress 2377 * @subpackage Cache 2378 * 2379 * @param int|array $ids Comment ID or array of comment IDs to remove from cache 2380 */ 2381 function clean_comment_cache($ids) { 2382 foreach ( (array) $ids as $id ) 2383 wp_cache_delete($id, 'comment'); 2384 2385 wp_cache_set( 'last_changed', microtime(), 'comment' ); 2386 } 2387 2388 /** 2389 * Updates the comment cache of given comments. 2390 * 2391 * Will add the comments in $comments to the cache. If comment ID already exists 2392 * in the comment cache then it will not be updated. The comment is added to the 2393 * cache using the comment group with the key using the ID of the comments. 2394 * 2395 * @since 2.3.0 2396 * @package WordPress 2397 * @subpackage Cache 2398 * 2399 * @param array $comments Array of comment row objects 2400 */ 2401 function update_comment_cache($comments) { 2402 foreach ( (array) $comments as $comment ) 2403 wp_cache_add($comment->comment_ID, $comment, 'comment'); 2404 } 2405 2406 // 2407 // Internal 2408 // 2409 2410 /** 2411 * Close comments on old posts on the fly, without any extra DB queries. Hooked to the_posts. 2412 * 2413 * @access private 2414 * @since 2.7.0 2415 * 2416 * @param object $posts Post data object. 2417 * @param object $query Query object. 2418 * @return object 2419 */ 2420 function _close_comments_for_old_posts( $posts, $query ) { 2421 if ( empty( $posts ) || ! $query->is_singular() || ! get_option( 'close_comments_for_old_posts' ) ) 2422 return $posts; 2423 2424 /** 2425 * Filter the list of post types to automatically close comments for. 2426 * 2427 * @since 3.2.0 2428 * 2429 * @param array $post_types An array of registered post types. Default array with 'post'. 2430 */ 2431 $post_types = apply_filters( 'close_comments_for_post_types', array( 'post' ) ); 2432 if ( ! in_array( $posts[0]->post_type, $post_types ) ) 2433 return $posts; 2434 2435 $days_old = (int) get_option( 'close_comments_days_old' ); 2436 if ( ! $days_old ) 2437 return $posts; 2438 2439 if ( time() - strtotime( $posts[0]->post_date_gmt ) > ( $days_old * DAY_IN_SECONDS ) ) { 2440 $posts[0]->comment_status = 'closed'; 2441 $posts[0]->ping_status = 'closed'; 2442 } 2443 2444 return $posts; 2445 } 2446 2447 /** 2448 * Close comments on an old post. Hooked to comments_open and pings_open. 2449 * 2450 * @access private 2451 * @since 2.7.0 2452 * 2453 * @param bool $open Comments open or closed 2454 * @param int $post_id Post ID 2455 * @return bool $open 2456 */ 2457 function _close_comments_for_old_post( $open, $post_id ) { 2458 if ( ! $open ) 2459 return $open; 2460 2461 if ( !get_option('close_comments_for_old_posts') ) 2462 return $open; 2463 2464 $days_old = (int) get_option('close_comments_days_old'); 2465 if ( !$days_old ) 2466 return $open; 2467 2468 $post = get_post($post_id); 2469 2470 /** This filter is documented in wp-includes/comment.php */ 2471 $post_types = apply_filters( 'close_comments_for_post_types', array( 'post' ) ); 2472 if ( ! in_array( $post->post_type, $post_types ) ) 2473 return $open; 2474 2475 if ( time() - strtotime( $post->post_date_gmt ) > ( $days_old * DAY_IN_SECONDS ) ) 2476 return false; 2477 2478 return $open; 2479 }
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| Generated: Tue Mar 25 01:41:18 2014 | WordPress honlapkészítés: online1.hu |