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comment.php
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comment.php
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<?php
/**
* Manages WordPress comments
*
* @package WordPress
*/
/**
* Checks whether a comment passes internal checks to be allowed to add.
*
* If comment moderation is set in the administration, then all comments,
* regardless of their type and whitelist will be set to false.
*
* If the number of links exceeds the amount in the administration, then the
* check fails.
*
* If any of the parameter contents match the blacklist of words, then the check
* fails.
*
* If the comment is a trackback and part of the blogroll, then the trackback is
* automatically whitelisted. If the comment author was approved before, then
* the comment is automatically whitelisted.
*
* If none of the checks fail, then the failback is to set the check to pass
* (return true).
*
* @since 1.2
* @uses $wpdb
*
* @param string $author Comment Author's name
* @param string $email Comment Author's email
* @param string $url Comment Author's URL
* @param string $comment Comment contents
* @param string $user_ip Comment Author's IP address
* @param string $user_agent Comment Author's User Agent
* @param string $comment_type Comment type, either user submitted comment,
* trackback, or pingback
* @return bool Whether the checks passed (true) and the comments should be
* displayed or set to moderated
*/
function check_comment($author, $email, $url, $comment, $user_ip, $user_agent, $comment_type) {
global $wpdb;
if ( 1 == get_option('comment_moderation') )
return false; // If moderation is set to manual
if ( preg_match_all("|(href\t*?=\t*?['\"]?)?(https?:)?//|i", $comment, $out) >= get_option('comment_max_links') )
return false; // Check # of external links
$mod_keys = trim(get_option('moderation_keys'));
if ( !empty($mod_keys) ) {
$words = explode("\n", $mod_keys );
foreach ($words as $word) {
$word = trim($word);
// Skip empty lines
if ( empty($word) )
continue;
// Do some escaping magic so that '#' chars in the
// spam words don't break things:
$word = preg_quote($word, '#');
$pattern = "#$word#i";
if ( preg_match($pattern, $author) ) return false;
if ( preg_match($pattern, $email) ) return false;
if ( preg_match($pattern, $url) ) return false;
if ( preg_match($pattern, $comment) ) return false;
if ( preg_match($pattern, $user_ip) ) return false;
if ( preg_match($pattern, $user_agent) ) return false;
}
}
// Comment whitelisting:
if ( 1 == get_option('comment_whitelist')) {
if ( 'trackback' == $comment_type || 'pingback' == $comment_type ) { // check if domain is in blogroll
$uri = parse_url($url);
$domain = $uri['host'];
$uri = parse_url( get_option('home') );
$home_domain = $uri['host'];
if ( $wpdb->get_var($wpdb->prepare("SELECT link_id FROM $wpdb->links WHERE link_url LIKE (%s) LIMIT 1", '%'.$domain.'%')) || $domain == $home_domain )
return true;
else
return false;
} elseif ( $author != '' && $email != '' ) {
// expected_slashed ($author, $email)
$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");
if ( ( 1 == $ok_to_comment ) &&
( empty($mod_keys) || false === strpos( $email, $mod_keys) ) )
return true;
else
return false;
} else {
return false;
}
}
return true;
}
/**
* Retrieve the approved comments for post $post_id.
*
* @since 2.0
* @uses $wpdb
*
* @param int $post_id The ID of the post
* @return array $comments The approved comments
*/
function get_approved_comments($post_id) {
global $wpdb;
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));
}
/**
* Retrieves comment data given a comment ID or comment object.
*
* If an object is passed then the comment data will be cached and then returned
* after being passed through a filter.
*
* If the comment is empty, then the global comment variable will be used, if it
* is set.
*
* @since 2.0
* @uses $wpdb
*
* @param object|string|int $comment Comment to retrieve.
* @param string $output Optional. OBJECT or ARRAY_A or ARRAY_N constants
* @return object|array|null Depends on $output value.
*/
function &get_comment(&$comment, $output = OBJECT) {
global $wpdb;
if ( empty($comment) ) {
if ( isset($GLOBALS['comment']) )
$_comment = & $GLOBALS['comment'];
else
$_comment = null;
} elseif ( is_object($comment) ) {
wp_cache_add($comment->comment_ID, $comment, 'comment');
$_comment = $comment;
} else {
if ( isset($GLOBALS['comment']) && ($GLOBALS['comment']->comment_ID == $comment) ) {
$_comment = & $GLOBALS['comment'];
} elseif ( ! $_comment = wp_cache_get($comment, 'comment') ) {
$_comment = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->comments WHERE comment_ID = %d LIMIT 1", $comment));
wp_cache_add($_comment->comment_ID, $_comment, 'comment');
}
}
$_comment = apply_filters('get_comment', $_comment);
if ( $output == OBJECT ) {
return $_comment;
} elseif ( $output == ARRAY_A ) {
return get_object_vars($_comment);
} elseif ( $output == ARRAY_N ) {
return array_values(get_object_vars($_comment));
} else {
return $_comment;
}
}
/**
* Retrieve an array of comment data about comment $comment_ID.
*
* get_comment() technically does the same thing as this function. This function
* also appears to reference variables and then not use them or not update them
* when needed. It is advised to switch to get_comment(), since this function
* might be deprecated in favor of using get_comment().
*
* @deprecated Use get_comment()
* @see get_comment()
* @since 0.71
*
* @uses $postc Comment cache, might not be used any more
* @uses $id
* @uses $wpdb Database Object
*
* @param int $comment_ID The ID of the comment
* @param int $no_cache Whether to use the cache or not (casted to bool)
* @param bool $include_unapproved Whether to include unapproved comments or not
* @return array The comment data
*/
function get_commentdata( $comment_ID, $no_cache = 0, $include_unapproved = false ) {
global $postc, $wpdb;
if ( $no_cache ) {
$query = $wpdb->prepare("SELECT * FROM $wpdb->comments WHERE comment_ID = %d", $comment_ID);
if ( false == $include_unapproved )
$query .= " AND comment_approved = '1'";
$myrow = $wpdb->get_row($query, ARRAY_A);
} else {
$myrow['comment_ID'] = $postc->comment_ID;
$myrow['comment_post_ID'] = $postc->comment_post_ID;
$myrow['comment_author'] = $postc->comment_author;
$myrow['comment_author_email'] = $postc->comment_author_email;
$myrow['comment_author_url'] = $postc->comment_author_url;
$myrow['comment_author_IP'] = $postc->comment_author_IP;
$myrow['comment_date'] = $postc->comment_date;
$myrow['comment_content'] = $postc->comment_content;
$myrow['comment_karma'] = $postc->comment_karma;
$myrow['comment_approved'] = $postc->comment_approved;
$myrow['comment_type'] = $postc->comment_type;
}
return $myrow;
}
/**
* The date the last comment was modified.
*
* {@internal Missing Long Description}}
*
* @since 1.5.0
* @uses $wpdb
* @global array $cache_lastcommentmodified
*
* @param string $timezone Which timezone to use in reference to 'gmt', 'blog',
* or 'server' locations
* @return string Last comment modified date
*/
function get_lastcommentmodified($timezone = 'server') {
global $cache_lastcommentmodified, $wpdb;
if ( isset($cache_lastcommentmodified[$timezone]) )
return $cache_lastcommentmodified[$timezone];
$add_seconds_server = date('Z');
switch ( strtolower($timezone)) {
case 'gmt':
$lastcommentmodified = $wpdb->get_var("SELECT comment_date_gmt FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1");
break;
case 'blog':
$lastcommentmodified = $wpdb->get_var("SELECT comment_date FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1");
break;
case 'server':
$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));
break;
}
$cache_lastcommentmodified[$timezone] = $lastcommentmodified;
return $lastcommentmodified;
}
/**
* The amount of comments in a post or total comments.
*
* {@internal Missing Long Description}}
*
* @since 2.0.0
* @uses $wpdb
*
* @param int $post_id Optional. Comment amount in post if > 0, else total comments blog wide
* @return array The amount of spam, approved, awaiting moderation, and total
*/
function get_comment_count( $post_id = 0 ) {
global $wpdb;
$post_id = (int) $post_id;
$where = '';
if ( $post_id > 0 ) {
$where = $wpdb->prepare("WHERE comment_post_ID = %d", $post_id);
}
$totals = (array) $wpdb->get_results("
SELECT comment_approved, COUNT( * ) AS total
FROM {$wpdb->comments}
{$where}
GROUP BY comment_approved
", ARRAY_A);
$comment_count = array(
"approved" => 0,
"awaiting_moderation" => 0,
"spam" => 0,
"total_comments" => 0
);
foreach ( $totals as $row ) {
switch ( $row['comment_approved'] ) {
case 'spam':
$comment_count['spam'] = $row['total'];
$comment_count["total_comments"] += $row['total'];
break;
case 1:
$comment_count['approved'] = $row['total'];
$comment_count['total_comments'] += $row['total'];
break;
case 0:
$comment_count['awaiting_moderation'] = $row['total'];
$comment_count['total_comments'] += $row['total'];
break;
default:
break;
}
}
return $comment_count;
}
/**
* Sanitizes the cookies sent to the user already.
*
* Will only do anything if the cookies have already been created for the user.
* Mostly used after cookies had been sent to use elsewhere.
*
* @since 2.0.4
*/
function sanitize_comment_cookies() {
if ( isset($_COOKIE['comment_author_'.COOKIEHASH]) ) {
$comment_author = apply_filters('pre_comment_author_name', $_COOKIE['comment_author_'.COOKIEHASH]);
$comment_author = stripslashes($comment_author);
$comment_author = attribute_escape($comment_author);
$_COOKIE['comment_author_'.COOKIEHASH] = $comment_author;
}
if ( isset($_COOKIE['comment_author_email_'.COOKIEHASH]) ) {
$comment_author_email = apply_filters('pre_comment_author_email', $_COOKIE['comment_author_email_'.COOKIEHASH]);
$comment_author_email = stripslashes($comment_author_email);
$comment_author_email = attribute_escape($comment_author_email);
$_COOKIE['comment_author_email_'.COOKIEHASH] = $comment_author_email;
}
if ( isset($_COOKIE['comment_author_url_'.COOKIEHASH]) ) {
$comment_author_url = apply_filters('pre_comment_author_url', $_COOKIE['comment_author_url_'.COOKIEHASH]);
$comment_author_url = stripslashes($comment_author_url);
$_COOKIE['comment_author_url_'.COOKIEHASH] = $comment_author_url;
}
}
/**
* Validates whether this comment is allowed to be made or not.
*
* {@internal Missing Long Description}}
*
* @since 2.0.0
* @uses $wpdb
* @uses apply_filters() Calls 'pre_comment_approved' hook on the type of comment
* @uses do_action() Calls 'check_comment_flood' hook on $comment_author_IP, $comment_author_email, and $comment_date_gmt
*
* @param array $commentdata Contains information on the comment
* @return mixed Signifies the approval status (0|1|'spam')
*/
function wp_allow_comment($commentdata) {
global $wpdb;
extract($commentdata, EXTR_SKIP);
// Simple duplicate check
// expected_slashed ($comment_post_ID, $comment_author, $comment_author_email, $comment_content)
$dupe = "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = '$comment_post_ID' AND ( comment_author = '$comment_author' ";
if ( $comment_author_email )
$dupe .= "OR comment_author_email = '$comment_author_email' ";
$dupe .= ") AND comment_content = '$comment_content' LIMIT 1";
if ( $wpdb->get_var($dupe) )
wp_die( __('Duplicate comment detected; it looks as though you\'ve already said that!') );
do_action( 'check_comment_flood', $comment_author_IP, $comment_author_email, $comment_date_gmt );
if ( $user_id ) {
$userdata = get_userdata($user_id);
$user = new WP_User($user_id);
$post_author = $wpdb->get_var($wpdb->prepare("SELECT post_author FROM $wpdb->posts WHERE ID = %d LIMIT 1", $comment_post_ID));
}
if ( $userdata && ( $user_id == $post_author || $user->has_cap('moderate_comments') ) ) {
// The author and the admins get respect.
$approved = 1;
} else {
// Everyone else's comments will be checked.
if ( check_comment($comment_author, $comment_author_email, $comment_author_url, $comment_content, $comment_author_IP, $comment_agent, $comment_type) )
$approved = 1;
else
$approved = 0;
if ( wp_blacklist_check($comment_author, $comment_author_email, $comment_author_url, $comment_content, $comment_author_IP, $comment_agent) )
$approved = 'spam';
}
$approved = apply_filters('pre_comment_approved', $approved);
return $approved;
}
/**
* {@internal Missing Short Description}}
*
* {@internal Missing Long Description}}
*
* @since 2.3.0
* @uses $wpdb
* @uses apply_filters() {@internal Missing Description}}
* @uses do_action() {@internal Missing Description}}
*
* @param string $ip {@internal Missing Description}}
* @param string $email {@internal Missing Description}}
* @param unknown_type $date {@internal Missing Description}}
*/
function check_comment_flood_db( $ip, $email, $date ) {
global $wpdb;
if ( current_user_can( 'manage_options' ) )
return; // don't throttle admins
if ( $lasttime = $wpdb->get_var( $wpdb->prepare("SELECT comment_date_gmt FROM $wpdb->comments WHERE comment_author_IP = %s OR comment_author_email = %s ORDER BY comment_date DESC LIMIT 1", $ip, $email) ) ) {
$time_lastcomment = mysql2date('U', $lasttime);
$time_newcomment = mysql2date('U', $date);
$flood_die = apply_filters('comment_flood_filter', false, $time_lastcomment, $time_newcomment);
if ( $flood_die ) {
do_action('comment_flood_trigger', $time_lastcomment, $time_newcomment);
wp_die( __('You are posting comments too quickly. Slow down.') );
}
}
}
/**
* Does comment contain blacklisted characters or words.
*
* {@internal Missing Long Description}}
*
* @since 1.5.0
* @uses do_action() Calls 'wp_blacklist_check' hook for all parameters
*
* @param string $author The author of the comment
* @param string $email The email of the comment
* @param string $url The url used in the comment
* @param string $comment The comment content
* @param string $user_ip The comment author IP address
* @param string $user_agent The author's browser user agent
* @return bool True if comment contains blacklisted content, false if comment does not
*/
function wp_blacklist_check($author, $email, $url, $comment, $user_ip, $user_agent) {
do_action('wp_blacklist_check', $author, $email, $url, $comment, $user_ip, $user_agent);
if ( preg_match_all('/&#(\d+);/', $comment . $author . $url, $chars) ) {
foreach ( (array) $chars[1] as $char ) {
// If it's an encoded char in the normal ASCII set, reject
if ( 38 == $char )
continue; // Unless it's &
if ( $char < 128 )
return true;
}
}
$mod_keys = trim( get_option('blacklist_keys') );
if ( '' == $mod_keys )
return false; // If moderation keys are empty
$words = explode("\n", $mod_keys );
foreach ( (array) $words as $word ) {
$word = trim($word);
// Skip empty lines
if ( empty($word) ) { continue; }
// Do some escaping magic so that '#' chars in the
// spam words don't break things:
$word = preg_quote($word, '#');
$pattern = "#$word#i";
if (
preg_match($pattern, $author)
|| preg_match($pattern, $email)
|| preg_match($pattern, $url)
|| preg_match($pattern, $comment)
|| preg_match($pattern, $user_ip)
|| preg_match($pattern, $user_agent)
)
return true;
}
return false;
}
/**
* {@internal Missing Short Description}}
*
* {@internal Missing Long Description}}
*
* @param unknown_type $post_id
* @return unknown
*/
function wp_count_comments( $post_id = 0 ) {
global $wpdb;
$post_id = (int) $post_id;
$count = wp_cache_get("comments-{$post_id}", 'counts');
if ( false !== $count )
return $count;
$where = '';
if( $post_id > 0 )
$where = $wpdb->prepare( "WHERE comment_post_ID = %d", $post_id );
$count = $wpdb->get_results( "SELECT comment_approved, COUNT( * ) AS num_comments FROM {$wpdb->comments} {$where} GROUP BY comment_approved", ARRAY_A );
$total = 0;
$stats = array( );
$approved = array('0' => 'moderated', '1' => 'approved', 'spam' => 'spam');
foreach( (array) $count as $row_num => $row ) {
$total += $row['num_comments'];
$stats[$approved[$row['comment_approved']]] = $row['num_comments'];
}
$stats['total_comments'] = $total;
foreach ( $approved as $key ) {
if ( empty($stats[$key]) )
$stats[$key] = 0;
}
$stats = (object) $stats;
wp_cache_set("comments-{$post_id}", $stats, 'counts');
return $stats;
}
/**
* Removes comment ID and maybe updates post comment count.
*
* The post comment count will be updated if the comment was approved and has a
* post ID available.
*
* @since 2.0.0
* @uses $wpdb
* @uses do_action() Calls 'delete_comment' hook on comment ID
* @uses do_action() Calls 'wp_set_comment_status' hook on comment ID with 'delete' set for the second parameter
*
* @param int $comment_id Comment ID
* @return bool False if delete comment query failure, true on success
*/
function wp_delete_comment($comment_id) {
global $wpdb;
do_action('delete_comment', $comment_id);
$comment = get_comment($comment_id);
if ( ! $wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->comments WHERE comment_ID = %d LIMIT 1", $comment_id) ) )
return false;
$post_id = $comment->comment_post_ID;
if ( $post_id && $comment->comment_approved == 1 )
wp_update_comment_count($post_id);
clean_comment_cache($comment_id);
do_action('wp_set_comment_status', $comment_id, 'delete');
return true;
}
/**
* The status of a comment by ID.
*
* @since 1.0.0
*
* @param int $comment_id Comment ID
* @return string|bool Status might be 'deleted', 'approved', 'unapproved', 'spam'. False on failure
*/
function wp_get_comment_status($comment_id) {
$comment = get_comment($comment_id);
if ( !$comment )
return false;
$approved = $comment->comment_approved;
if ( $approved == NULL )
return 'deleted';
elseif ( $approved == '1' )
return 'approved';
elseif ( $approved == '0' )
return 'unapproved';
elseif ( $approved == 'spam' )
return 'spam';
else
return false;
}
/**
* Get current commenter's name, email, and URL.
*
* Expects cookies content to already be sanitized. User of this function
* might wish to recheck the returned array for validity.
*
* @see sanitize_comment_cookies() Use to sanitize cookies
*
* @since 2.0.4
*
* @return array Comment author, email, url respectively
*/
function wp_get_current_commenter() {
// Cookies should already be sanitized.
$comment_author = '';
if ( isset($_COOKIE['comment_author_'.COOKIEHASH]) )
$comment_author = $_COOKIE['comment_author_'.COOKIEHASH];
$comment_author_email = '';
if ( isset($_COOKIE['comment_author_email_'.COOKIEHASH]) )
$comment_author_email = $_COOKIE['comment_author_email_'.COOKIEHASH];
$comment_author_url = '';
if ( isset($_COOKIE['comment_author_url_'.COOKIEHASH]) )
$comment_author_url = $_COOKIE['comment_author_url_'.COOKIEHASH];
return compact('comment_author', 'comment_author_email', 'comment_author_url');
}
/**
* Inserts a comment to the database.
*
* {@internal Missing Long Description}}
*
* @since 2.0.0
* @uses $wpdb
*
* @param array $commentdata Contains information on the comment
* @return int The new comment's id
*/
function wp_insert_comment($commentdata) {
global $wpdb;
extract(stripslashes_deep($commentdata), EXTR_SKIP);
if ( ! isset($comment_author_IP) )
$comment_author_IP = '';
if ( ! isset($comment_date) )
$comment_date = current_time('mysql');
if ( ! isset($comment_date_gmt) )
$comment_date_gmt = get_gmt_from_date($comment_date);
if ( ! isset($comment_parent) )
$comment_parent = 0;
if ( ! isset($comment_approved) )
$comment_approved = 1;
if ( ! isset($user_id) )
$user_id = 0;
$result = $wpdb->query( $wpdb->prepare("INSERT INTO $wpdb->comments
(comment_post_ID, comment_author, comment_author_email, comment_author_url, comment_author_IP, comment_date, comment_date_gmt, comment_content, comment_approved, comment_agent, comment_type, comment_parent, user_id)
VALUES (%d, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %d, %d)",
$comment_post_ID, $comment_author, $comment_author_email, $comment_author_url, $comment_author_IP, $comment_date, $comment_date_gmt, $comment_content, $comment_approved, $comment_agent, $comment_type, $comment_parent, $user_id) );
$id = (int) $wpdb->insert_id;
if ( $comment_approved == 1)
wp_update_comment_count($comment_post_ID);
return $id;
}
/**
* Parses and returns comment information.
*
* Sets the comment data 'filtered' field to true when finished. This can be
* checked as to whether the comment should be filtered and to keep from
* filtering the same comment more than once.
*
* @since 2.0.0
* @uses apply_filters() Calls 'pre_user_id' hook on comment author's user ID
* @uses apply_filters() Calls 'pre_comment_user_agent' hook on comment author's user agent
* @uses apply_filters() Calls 'pre_comment_author_name' hook on comment author's name
* @uses apply_filters() Calls 'pre_comment_content' hook on the comment's content
* @uses apply_filters() Calls 'pre_comment_user_ip' hook on comment author's IP
* @uses apply_filters() Calls 'pre_comment_author_url' hook on comment author's URL
* @uses apply_filters() Calls 'pre_comment_author_email' hook on comment author's email address
*
* @param array $commentdata Contains information on the comment
* @return array Parsed comment information
*/
function wp_filter_comment($commentdata) {
$commentdata['user_id'] = apply_filters('pre_user_id', $commentdata['user_ID']);
$commentdata['comment_agent'] = apply_filters('pre_comment_user_agent', $commentdata['comment_agent']);
$commentdata['comment_author'] = apply_filters('pre_comment_author_name', $commentdata['comment_author']);
$commentdata['comment_content'] = apply_filters('pre_comment_content', $commentdata['comment_content']);
$commentdata['comment_author_IP'] = apply_filters('pre_comment_user_ip', $commentdata['comment_author_IP']);
$commentdata['comment_author_url'] = apply_filters('pre_comment_author_url', $commentdata['comment_author_url']);
$commentdata['comment_author_email'] = apply_filters('pre_comment_author_email', $commentdata['comment_author_email']);
$commentdata['filtered'] = true;
return $commentdata;
}
/**
* {@internal Missing Short Description}}
*
* {@internal Missing Long Description}}
*
* @since 2.1.0
*
* @param unknown_type $block {@internal Missing Description}}
* @param unknown_type $time_lastcomment {@internal Missing Description}}
* @param unknown_type $time_newcomment {@internal Missing Description}}
* @return unknown {@internal Missing Description}}
*/
function wp_throttle_comment_flood($block, $time_lastcomment, $time_newcomment) {
if ( $block ) // a plugin has already blocked... we'll let that decision stand
return $block;
if ( ($time_newcomment - $time_lastcomment) < 15 )
return true;
return false;
}
/**
* Parses and adds a new comment to the database.
*
* {@internal Missing Long Description}}
*
* @since 1.5.0
* @uses apply_filters() Calls 'preprocess_comment' hook on $commentdata parameter array before processing
* @uses do_action() Calls 'comment_post' hook on $comment_ID returned from adding the comment and if the comment was approved.
* @uses wp_filter_comment() Used to filter comment before adding comment
* @uses wp_allow_comment() checks to see if comment is approved.
* @uses wp_insert_comment() Does the actual comment insertion to the database
*
* @param array $commentdata Contains information on the comment
* @return int The ID of the comment after adding.
*/
function wp_new_comment( $commentdata ) {
$commentdata = apply_filters('preprocess_comment', $commentdata);
$commentdata['comment_post_ID'] = (int) $commentdata['comment_post_ID'];
$commentdata['user_ID'] = (int) $commentdata['user_ID'];
$commentdata['comment_author_IP'] = preg_replace( '/[^0-9a-fA-F:., ]/', '',$_SERVER['REMOTE_ADDR'] );
$commentdata['comment_agent'] = $_SERVER['HTTP_USER_AGENT'];
$commentdata['comment_date'] = current_time('mysql');
$commentdata['comment_date_gmt'] = current_time('mysql', 1);
$commentdata = wp_filter_comment($commentdata);
$commentdata['comment_approved'] = wp_allow_comment($commentdata);
$comment_ID = wp_insert_comment($commentdata);
do_action('comment_post', $comment_ID, $commentdata['comment_approved']);
if ( 'spam' !== $commentdata['comment_approved'] ) { // If it's spam save it silently for later crunching
if ( '0' == $commentdata['comment_approved'] )
wp_notify_moderator($comment_ID);
$post = &get_post($commentdata['comment_post_ID']); // Don't notify if it's your own comment
if ( get_option('comments_notify') && $commentdata['comment_approved'] && $post->post_author != $commentdata['user_ID'] )
wp_notify_postauthor($comment_ID, $commentdata['comment_type']);
}
return $comment_ID;
}
/**
* Sets the status of comment ID.
*
* {@internal Missing Long Description}}
*
* @since 1.0.0
*
* @param int $comment_id Comment ID
* @param string $comment_status New comment status, either 'hold', 'approve', 'spam', or 'delete'
* @return bool False on failure or deletion and true on success.
*/
function wp_set_comment_status($comment_id, $comment_status) {
global $wpdb;
switch ( $comment_status ) {
case 'hold':
$query = $wpdb->prepare("UPDATE $wpdb->comments SET comment_approved='0' WHERE comment_ID = %d LIMIT 1", $comment_id);
break;
case 'approve':
$query = $wpdb->prepare("UPDATE $wpdb->comments SET comment_approved='1' WHERE comment_ID = %d LIMIT 1", $comment_id);
if ( get_option('comments_notify') ) {
$comment = get_comment($comment_id);
wp_notify_postauthor($comment_id, $comment->comment_type);
}
break;
case 'spam':
$query = $wpdb->prepare("UPDATE $wpdb->comments SET comment_approved='spam' WHERE comment_ID = %d LIMIT 1", $comment_id);
break;
case 'delete':
return wp_delete_comment($comment_id);
break;
default:
return false;
}
if ( !$wpdb->query($query) )
return false;
clean_comment_cache($comment_id);
do_action('wp_set_comment_status', $comment_id, $comment_status);
$comment = get_comment($comment_id);
wp_update_comment_count($comment->comment_post_ID);
return true;
}
/**
* Parses and updates an existing comment in the database.
*
* {@internal Missing Long Description}}
*
* @since 2.0.0
* @uses $wpdb
*
* @param array $commentarr Contains information on the comment
* @return int Comment was updated if value is 1, or was not updated if value is 0.
*/
function wp_update_comment($commentarr) {
global $wpdb;
// First, get all of the original fields
$comment = get_comment($commentarr['comment_ID'], ARRAY_A);
// Escape data pulled from DB.
foreach ( (array) $comment as $key => $value )
$comment[$key] = $wpdb->escape($value);
// Merge old and new fields with new fields overwriting old ones.
$commentarr = array_merge($comment, $commentarr);
$commentarr = wp_filter_comment( $commentarr );
// Now extract the merged array.
extract(stripslashes_deep($commentarr), EXTR_SKIP);
$comment_content = apply_filters('comment_save_pre', $comment_content);
$comment_date_gmt = get_gmt_from_date($comment_date);
$wpdb->query( $wpdb->prepare("UPDATE $wpdb->comments SET
comment_content = %s,
comment_author = %s,
comment_author_email = %s,
comment_approved = %s,
comment_author_url = %s,
comment_date = %s,
comment_date_gmt = %s
WHERE comment_ID = %d",
$comment_content,
$comment_author,
$comment_author_email,
$comment_approved,
$comment_author_url,
$comment_date,
$comment_date_gmt,
$comment_ID) );
$rval = $wpdb->rows_affected;
clean_comment_cache($comment_ID);
wp_update_comment_count($comment_post_ID);
do_action('edit_comment', $comment_ID);
return $rval;
}
/**
* Whether to defer comment counting.
*
* When setting $defer to true, all post comment counts will not be updated
* until $defer is set to false. When $defer is set to false, then all
* previously deferred updated post comment counts will then be automatically
* updated without having to call wp_update_comment_count() after.
*
* @since 2.5
* @staticvar bool $_defer
*
* @param bool $defer
* @return unknown
*/
function wp_defer_comment_counting($defer=null) {
static $_defer = false;
if ( is_bool($defer) ) {
$_defer = $defer;
// flush any deferred counts
if ( !$defer )
wp_update_comment_count( null, true );
}
return $_defer;
}
/**
* Updates the comment count for post(s).
*
* When $do_deferred is false (is by default) and the comments have been set to
* be deferred, the post_id will be added to a queue, which will be updated at a
* later date and only updated once per post ID.
*
* If the comments have not be set up to be deferred, then the post will be
* updated. When $do_deferred is set to true, then all previous deferred post
* IDs will be updated along with the current $post_id.
*
* @since 2.1.0
* @see wp_update_comment_count_now() For what could cause a false return value
*
* @param int $post_id Post ID
* @param bool $do_deferred Whether to process previously deferred post comment counts
* @return bool True on success, false on failure
*/
function wp_update_comment_count($post_id, $do_deferred=false) {
static $_deferred = array();
if ( $do_deferred ) {
$_deferred = array_unique($_deferred);
foreach ( $_deferred as $i => $_post_id ) {
wp_update_comment_count_now($_post_id);
unset( $_deferred[$i] ); /** @todo Move this outside of the foreach and reset $_deferred to an array instead */
}
}
if ( wp_defer_comment_counting() ) {
$_deferred[] = $post_id;
return true;
}
elseif ( $post_id ) {
return wp_update_comment_count_now($post_id);
}
}
/**
* Updates the comment count for the post.
*
* @since 2.5
* @uses $wpdb
* @uses do_action() Calls 'wp_update_comment_count' hook on $post_id, $new, and $old
* @uses do_action() Calls 'edit_posts' hook on $post_id and $post
*
* @param int $post_id Post ID
* @return bool False on '0' $post_id or if post with ID does not exist. True on success.
*/
function wp_update_comment_count_now($post_id) {
global $wpdb;
$post_id = (int) $post_id;
if ( !$post_id )
return false;
if ( !$post = get_post($post_id) )
return false;
$old = (int) $post->comment_count;
$new = (int) $wpdb->get_var( $wpdb->prepare("SELECT COUNT(*) FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_approved = '1'", $post_id) );
$wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET comment_count = %d WHERE ID = %d", $new, $post_id) );
if ( 'page' == $post->post_type )
clean_page_cache( $post_id );
else
clean_post_cache( $post_id );
do_action('wp_update_comment_count', $post_id, $new, $old);
do_action('edit_post', $post_id, $post);
return true;
}
//
// Ping and trackback functions.
//
/**
* Finds a pingback server URI based on the given URL.
*
* {@internal Missing Long Description}}
*
* @since 1.5.0
* @uses $wp_version
*
* @param string $url URL to ping
* @param int $timeout_bytes Number of bytes to timeout at. Prevents big file downloads, default is 2048.
* @return bool|string False on failure, string containing URI on success.
*/
function discover_pingback_server_uri($url, $timeout_bytes = 2048) {
global $wp_version;
$byte_count = 0;
$contents = '';
$headers = '';
$pingback_str_dquote = 'rel="pingback"';
$pingback_str_squote = 'rel=\'pingback\'';
$x_pingback_str = 'x-pingback: ';
extract(parse_url($url), EXTR_SKIP);
if ( !isset($host) ) // Not an URL. This should never happen.
return false;
$path = ( !isset($path) ) ? '/' : $path;
$path .= ( isset($query) ) ? '?' . $query : '';
$port = ( isset($port) ) ? $port : 80;
// Try to connect to the server at $host
$fp = @fsockopen($host, $port, $errno, $errstr, 2);
if ( !$fp ) // Couldn't open a connection to $host
return false;
// Send the GET request
$request = "GET $path HTTP/1.1\r\nHost: $host\r\nUser-Agent: WordPress/$wp_version \r\n\r\n";
// ob_end_flush();
fputs($fp, $request);
// Let's check for an X-Pingback header first
while ( !feof($fp) ) {
$line = fgets($fp, 512);
if ( trim($line) == '' )
break;