Wordpress/wp-includes/functions-post.php

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<?php
/**** DB Functions ****/
/*
* generic function for inserting data into the posts table.
*/
function wp_insert_post($postarr = array()) {
global $wpdb, $allowedtags, $user_ID;
// export array as variables
extract($postarr);
// Are we updating or creating?
$update = false;
if ( !empty($ID) ) {
$update = true;
$post = & get_post($ID);
$previous_status = $post->post_status;
}
// Get the basics.
$post_content = apply_filters('content_save_pre', $post_content);
$post_excerpt = apply_filters('excerpt_save_pre', $post_excerpt);
$post_title = apply_filters('title_save_pre', $post_title);
$post_category = apply_filters('category_save_pre', $post_category);
$post_status = apply_filters('status_save_pre', $post_status);
$post_name = apply_filters('name_save_pre', $post_name);
$comment_status = apply_filters('comment_status_pre', $comment_status);
$ping_status = apply_filters('ping_status_pre', $ping_status);
// Make sure we set a valid category
if (0 == count($post_category) || !is_array($post_category)) {
$post_category = array(get_option('default_category'));
}
$post_cat = $post_category[0];
if ( empty($post_author) )
$post_author = $user_ID;
if ( empty($post_status) )
$post_status = 'draft';
// Get the post ID.
if ( $update ) {
$post_ID = $ID;
} else {
$id_result = $wpdb->get_row("SHOW TABLE STATUS LIKE '$wpdb->posts'");
$post_ID = $id_result->Auto_increment;
}
// Create a valid post name. Drafts are allowed to have an empty
// post name.
if ( empty($post_name) ) {
if ( 'draft' != $post_status )
$post_name = sanitize_title($post_title, $post_ID);
} else {
$post_name = sanitize_title($post_name, $post_ID);
}
if (empty($post_date))
$post_date = current_time('mysql');
if (empty($post_date_gmt))
$post_date_gmt = current_time('mysql', 1);
if ( empty($comment_status) ) {
if ( $update )
$comment_status = 'closed';
else
$comment_status = get_settings('default_comment_status');
}
if ( empty($ping_status) )
$ping_status = get_settings('default_ping_status');
if ( empty($post_pingback) )
$post_pingback = get_option('default_pingback_flag');
if ( isset($to_ping) )
$to_ping = preg_replace('|\s+|', "\n", $to_ping);
else
$to_ping = '';
if ( isset($post_parent) )
$post_parent = (int) $post_parent;
else
$post_parent = 0;
if ( isset($menu_order) )
$menu_order = (int) $menu_order;
else
$menu_order = 0;
if ( !isset($post_password) )
$post_password = '';
if ('publish' == $post_status) {
$post_name_check = $wpdb->get_var("SELECT post_name FROM $wpdb->posts WHERE post_name = '$post_name' AND post_status = 'publish' AND ID != '$post_ID' LIMIT 1");
if ($post_name_check) {
$suffix = 2;
while ($post_name_check) {
$alt_post_name = $post_name . "-$suffix";
$post_name_check = $wpdb->get_var("SELECT post_name FROM $wpdb->posts WHERE post_name = '$alt_post_name' AND post_status = 'publish' AND ID != '$post_ID' LIMIT 1");
$suffix++;
}
$post_name = $alt_post_name;
}
}
if ($update) {
$postquery =
"UPDATE $wpdb->posts SET
post_author = '$post_author',
post_date = '$post_date',
post_date_gmt = '$post_date_gmt',
post_content = '$post_content',
post_title = '$post_title',
post_excerpt = '$post_excerpt',
post_status = '$post_status',
comment_status = '$comment_status',
ping_status = '$ping_status',
post_password = '$post_password',
post_name = '$post_name',
to_ping = '$to_ping',
post_modified = '$post_date',
post_modified_gmt = '$post_date_gmt',
post_parent = '$post_parent',
menu_order = '$menu_order'
WHERE ID = $post_ID";
} else {
$postquery =
"INSERT INTO $wpdb->posts
(ID, post_author, post_date, post_date_gmt, post_content, post_title, post_excerpt, post_status, comment_status, ping_status, post_password, post_name, to_ping, post_modified, post_modified_gmt, post_parent, menu_order)
VALUES
('$post_ID', '$post_author', '$post_date', '$post_date_gmt', '$post_content', '$post_title', '$post_excerpt', '$post_status', '$comment_status', '$ping_status', '$post_password', '$post_name', '$to_ping', '$post_date', '$post_date_gmt', '$post_parent', '$menu_order')";
}
$result = $wpdb->query($postquery);
if ( $update )
$rval = $wpdb->rows_affected;
else
$rval = $wpdb->insert_id;
// Set GUID
if ( ! $update )
$wpdb->query("UPDATE $wpdb->posts SET guid = '" . get_permalink($post_ID) . "' WHERE ID = '$post_ID'");
wp_set_post_cats('', $post_ID, $post_category);
if ( $update) {
if ($previous_status != 'publish' && $post_status == 'publish')
do_action('private_to_published', $post_ID);
do_action('edit_post', $post_ID);
}
if ($post_status == 'publish') {
do_action('publish_post', $post_ID);
if ($post_pingback)
pingback($post_content, $post_ID);
do_enclose( $post_content, $post_ID );
do_trackbacks($post_ID);
} else if ($post_status == 'static') {
generate_page_rewrite_rules();
if ( empty($page_template) )
$page_template = 'Default Template';
if ( ! update_post_meta($post_ID, '_wp_page_template', $page_template))
add_post_meta($post_ID, '_wp_page_template', $page_template, true);
}
return $rval;
}
function wp_get_single_post($postid = 0, $mode = OBJECT) {
global $wpdb;
$post = get_post($postid, $mode);
// Set categories
if($mode == OBJECT) {
$post->post_category = wp_get_post_cats('',$postid);
}
else {
$post['post_category'] = wp_get_post_cats('',$postid);
}
return $post;
}
function wp_get_recent_posts($num = 10) {
global $wpdb;
// Set the limit clause, if we got a limit
if ($num) {
$limit = "LIMIT $num";
}
$sql = "SELECT * FROM $wpdb->posts WHERE post_status IN ('publish', 'draft', 'private') ORDER BY post_date DESC $limit";
$result = $wpdb->get_results($sql,ARRAY_A);
return $result?$result:array();
}
function wp_update_post($postarr = array()) {
global $wpdb;
// First, get all of the original fields
$post = wp_get_single_post($postarr['ID'], ARRAY_A);
// Escape data pulled from DB.
$post = add_magic_quotes($post);
// Passed post category list overwrites existing category list if not empty.
if ( isset($postarr['post_category']) && is_array($postarr['post_category'])
&& 0 != count($postarr['post_category']) )
$post_cats = $postarr['post_category'];
else
$post_cats = $post['post_category'];
// Merge old and new fields with new fields overwriting old ones.
$postarr = array_merge($post, $postarr);
$postarr['post_category'] = $post_cats;
return wp_insert_post($postarr);
}
function wp_get_post_cats($blogid = '1', $post_ID = 0) {
global $wpdb;
$sql = "SELECT category_id
FROM $wpdb->post2cat
WHERE post_id = $post_ID
ORDER BY category_id";
$result = $wpdb->get_col($sql);
if ( !$result )
$result = array();
return array_unique($result);
}
function wp_set_post_cats($blogid = '1', $post_ID = 0, $post_categories = array()) {
global $wpdb;
// If $post_categories isn't already an array, make it one:
if (!is_array($post_categories) || 0 == count($post_categories))
$post_categories = array(get_option('default_category'));
$post_categories = array_unique($post_categories);
// First the old categories
$old_categories = $wpdb->get_col("
SELECT category_id
FROM $wpdb->post2cat
WHERE post_id = $post_ID");
if (!$old_categories) {
$old_categories = array();
} else {
$old_categories = array_unique($old_categories);
}
$oldies = printr($old_categories,1);
$newbies = printr($post_categories,1);
// Delete any?
$delete_cats = array_diff($old_categories,$post_categories);
if ($delete_cats) {
foreach ($delete_cats as $del) {
$wpdb->query("
DELETE FROM $wpdb->post2cat
WHERE category_id = $del
AND post_id = $post_ID
");
}
}
// Add any?
$add_cats = array_diff($post_categories, $old_categories);
if ($add_cats) {
foreach ($add_cats as $new_cat) {
$wpdb->query("
INSERT INTO $wpdb->post2cat (post_id, category_id)
VALUES ($post_ID, $new_cat)");
}
}
} // wp_set_post_cats()
function wp_delete_post($postid = 0) {
global $wpdb;
$postid = (int) $postid;
if ( !$post = $wpdb->get_row("SELECT * FROM $wpdb->posts WHERE ID = $postid") )
return $post;
if ( 'static' == $post->post_status )
$wpdb->query("UPDATE $wpdb->posts SET post_parent = $post->post_parent WHERE post_parent = $postid AND post_status = 'static'");
$wpdb->query("DELETE FROM $wpdb->posts WHERE ID = $postid");
$wpdb->query("DELETE FROM $wpdb->comments WHERE comment_post_ID = $postid");
$wpdb->query("DELETE FROM $wpdb->post2cat WHERE post_id = $postid");
$wpdb->query("DELETE FROM $wpdb->postmeta WHERE post_id = $postid");
if ( 'static' == $post->post_status )
generate_page_rewrite_rules();
do_action('delete_post', $postid);
return $post;
}
/**** /DB Functions ****/
/**** Misc ****/
// get permalink from post ID
function post_permalink($post_id = 0, $mode = '') { // $mode legacy
return get_permalink($post_id);
}
// Get the name of a category from its ID
function get_cat_name($cat_id) {
global $wpdb;
$cat_id -= 0; // force numeric
$name = $wpdb->get_var("SELECT cat_name FROM $wpdb->categories WHERE cat_ID=$cat_id");
return $name;
}
// Get the ID of a category from its name
function get_cat_ID($cat_name='General') {
global $wpdb;
$cid = $wpdb->get_var("SELECT cat_ID FROM $wpdb->categories WHERE cat_name='$cat_name'");
return $cid?$cid:1; // default to cat 1
}
// Get author's preferred display name
function get_author_name( $auth_id ) {
$authordata = get_userdata( $auth_id );
return $authordata->display_name;
}
// get extended entry info (<!--more-->)
function get_extended($post) {
list($main,$extended) = explode('<!--more-->', $post, 2);
// Strip leading and trailing whitespace
$main = preg_replace('/^[\s]*(.*)[\s]*$/','\\1',$main);
$extended = preg_replace('/^[\s]*(.*)[\s]*$/','\\1',$extended);
return array('main' => $main, 'extended' => $extended);
}
// do trackbacks for a list of urls
// borrowed from edit.php
// accepts a comma-separated list of trackback urls and a post id
function trackback_url_list($tb_list, $post_id) {
if (!empty($tb_list)) {
// get post data
$postdata = wp_get_single_post($post_id, ARRAY_A);
// import postdata as variables
extract($postdata);
// form an excerpt
$excerpt = strip_tags($post_excerpt?$post_excerpt:$post_content);
if (strlen($excerpt) > 255) {
$excerpt = substr($excerpt,0,252) . '...';
}
$trackback_urls = explode(',', $tb_list);
foreach($trackback_urls as $tb_url) {
$tb_url = trim($tb_url);
trackback($tb_url, stripslashes($post_title), $excerpt, $post_id);
}
}
}
function wp_blacklist_check($author, $email, $url, $comment, $user_ip, $user_agent) {
global $wpdb;
do_action('wp_blacklist_check', $author, $email, $url, $comment, $user_ip, $user_agent);
if ( preg_match_all('/&#(\d+);/', $comment . $author . $url, $chars) ) {
foreach ($chars[1] as $char) {
// If it's an encoded char in the normal ASCII set, reject
if ($char < 128)
return true;
}
}
$mod_keys = trim( get_settings('blacklist_keys') );
if ('' == $mod_keys )
return false; // If moderation keys are empty
$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, $author ) ) return true;
if ( preg_match($pattern, $email ) ) return true;
if ( preg_match($pattern, $url ) ) return true;
if ( preg_match($pattern, $comment ) ) return true;
if ( preg_match($pattern, $user_ip ) ) return true;
if ( preg_match($pattern, $user_agent) ) return true;
}
if ( isset($_SERVER['REMOTE_ADDR']) ) {
if ( wp_proxy_check($_SERVER['REMOTE_ADDR']) ) return true;
}
return false;
}
function wp_proxy_check($ipnum) {
if ( get_option('open_proxy_check') && isset($ipnum) ) {
$rev_ip = implode( '.', array_reverse( explode( '.', $ipnum ) ) );
$lookup = $rev_ip . '.opm.blitzed.org';
if ( $lookup != gethostbyname( $lookup ) )
return true;
}
return false;
}
function wp_new_comment( $commentdata, $spam = false ) {
global $wpdb;
$commentdata = apply_filters('preprocess_comment', $commentdata);
extract($commentdata);
$comment_post_ID = (int) $comment_post_ID;
$user_id = apply_filters('pre_user_id', $user_ID);
$author = apply_filters('pre_comment_author_name', $comment_author);
$email = apply_filters('pre_comment_author_email', $comment_author_email);
$url = apply_filters('pre_comment_author_url', $comment_author_url);
$comment = apply_filters('pre_comment_content', $comment_content);
$comment = apply_filters('post_comment_text', $comment); // Deprecated
$comment = apply_filters('comment_content_presave', $comment); // Deprecated
$user_ip = apply_filters('pre_comment_user_ip', $_SERVER['REMOTE_ADDR']);
$user_domain = apply_filters('pre_comment_user_domain', gethostbyaddr($user_ip) );
$user_agent = apply_filters('pre_comment_user_agent', $_SERVER['HTTP_USER_AGENT']);
$now = current_time('mysql');
$now_gmt = current_time('mysql', 1);
if ( $user_id ) {
$userdata = get_userdata($user_id);
$user = new WP_User($user_id);
$post_author = $wpdb->get_var("SELECT post_author FROM $wpdb->posts WHERE ID = '$comment_post_ID' LIMIT 1");
}
// Simple duplicate check
$dupe = "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = '$comment_post_ID' AND ( comment_author = '$author' ";
if ( $email ) $dupe .= "OR comment_author_email = '$email' ";
$dupe .= ") AND comment_content = '$comment' LIMIT 1";
if ( $wpdb->get_var($dupe) )
die( __('Duplicate comment detected; it looks as though you\'ve already said that!') );
// Simple flood-protection
if ( $lasttime = $wpdb->get_var("SELECT comment_date_gmt FROM $wpdb->comments WHERE comment_author_IP = '$user_ip' OR comment_author_email = '$email' ORDER BY comment_date DESC LIMIT 1") ) {
$time_lastcomment = mysql2date('U', $lasttime);
$time_newcomment = mysql2date('U', $now_gmt);
if ( ($time_newcomment - $time_lastcomment) < 15 ) {
do_action('comment_flood_trigger', $time_lastcomment, $time_newcomment);
die( __('Sorry, you can only post a new comment once every 15 seconds. Slow down cowboy.') );
}
}
if ( $userdata && ( $user_id == $post_author || $user->has_cap('level_9') ) ) {
$approved = 1;
} else {
if ( check_comment($author, $email, $url, $comment, $user_ip, $user_agent, $comment_type) )
$approved = 1;
else
$approved = 0;
if ( wp_blacklist_check($author, $email, $url, $comment, $user_ip, $user_agent) )
$approved = 'spam';
}
$approved = apply_filters('pre_comment_approved', $approved);
$result = $wpdb->query("INSERT INTO $wpdb->comments
(comment_post_ID, comment_author, comment_author_email, comment_author_url, comment_author_IP, comment_date, comment_date_gmt, comment_content, comment_approved, comment_agent, comment_type, user_id)
VALUES
('$comment_post_ID', '$author', '$email', '$url', '$user_ip', '$now', '$now_gmt', '$comment', '$approved', '$user_agent', '$comment_type', '$user_id')
");
$comment_id = $wpdb->insert_id;
do_action('comment_post', $comment_id, $approved);
if ( 'spam' !== $approved ) { // If it's spam save it silently for later crunching
if ( '0' == $approved )
wp_notify_moderator($comment_id);
if ( get_settings('comments_notify') && $approved )
wp_notify_postauthor($comment_id, $comment_type);
}
return $result;
}
function wp_update_comment($commentarr) {
global $wpdb;
// First, get all of the original fields
$comment = get_comment($commentarr['comment_ID'], ARRAY_A);
// Escape data pulled from DB.
foreach ($comment as $key => $value)
$comment[$key] = $wpdb->escape($value);
// Merge old and new fields with new fields overwriting old ones.
$commentarr = array_merge($comment, $commentarr);
// Now extract the merged array.
extract($commentarr);
$comment_content = apply_filters('comment_save_pre', $comment_content);
$result = $wpdb->query(
"UPDATE $wpdb->comments SET
comment_content = '$comment_content',
comment_author = '$comment_author',
comment_author_email = '$comment_author_email',
comment_approved = '$comment_approved',
comment_author_url = '$comment_author_url',
comment_date = '$comment_date'
WHERE comment_ID = $comment_ID" );
$rval = $wpdb->rows_affected;
do_action('edit_comment', $comment_ID);
return $rval;
}
function do_trackbacks($post_id) {
global $wpdb;
$post = $wpdb->get_row("SELECT * FROM $wpdb->posts WHERE ID = $post_id");
$to_ping = get_to_ping($post_id);
$pinged = get_pung($post_id);
if ( empty($to_ping) )
return;
if (empty($post->post_excerpt))
$excerpt = apply_filters('the_content', $post->post_content);
else
$excerpt = apply_filters('the_excerpt', $post->post_excerpt);
$excerpt = str_replace(']]>', ']]&gt;', $excerpt);
$excerpt = strip_tags($excerpt);
$excerpt = substr($excerpt, 0, 252) . '...';
$post_title = apply_filters('the_title', $post->post_title);
$post_title = strip_tags($post_title);
if ($to_ping) : foreach ($to_ping as $tb_ping) :
$tb_ping = trim($tb_ping);
if ( !in_array($tb_ping, $pinged) )
trackback($tb_ping, $post_title, $excerpt, $post_id);
endforeach; endif;
}
function get_pung($post_id) { // Get URIs already pung for a post
global $wpdb;
$pung = $wpdb->get_var("SELECT pinged FROM $wpdb->posts WHERE ID = $post_id");
$pung = trim($pung);
$pung = preg_split('/\s/', $pung);
$pung = apply_filters('get_pung', $pung);
return $pung;
}
function get_enclosed($post_id) { // Get enclosures already enclosed for a post
global $wpdb;
$custom_fields = get_post_custom( $post_id );
$pung = array();
if ( !is_array( $custom_fields ) )
return $pung;
foreach ( $custom_fields as $key => $val ) {
if ( 'enclosure' != $key || !is_array( $val ) )
continue;
foreach( $val as $enc ) {
$enclosure = split( "\n", $enc );
$pung[] = trim( $enclosure[ 0 ] );
}
}
$pung = apply_filters('get_enclosed', $pung);
return $pung;
}
function get_to_ping($post_id) { // Get any URIs in the todo list
global $wpdb;
$to_ping = $wpdb->get_var("SELECT to_ping FROM $wpdb->posts WHERE ID = $post_id");
$to_ping = trim($to_ping);
$to_ping = preg_split('/\s/', $to_ping, -1, PREG_SPLIT_NO_EMPTY);
$to_ping = apply_filters('get_to_ping', $to_ping);
return $to_ping;
}
function add_ping($post_id, $uri) { // Add a URI to those already pung
global $wpdb;
$pung = $wpdb->get_var("SELECT pinged FROM $wpdb->posts WHERE ID = $post_id");
$pung = trim($pung);
$pung = preg_split('/\s/', $pung);
$pung[] = $uri;
$new = implode("\n", $pung);
$new = apply_filters('add_ping', $new);
return $wpdb->query("UPDATE $wpdb->posts SET pinged = '$new' WHERE ID = $post_id");
}
function generate_page_rewrite_rules() {
global $wpdb;
$posts = $wpdb->get_results("SELECT ID, post_name FROM $wpdb->posts WHERE post_status = 'static' ORDER BY post_parent DESC");
$page_rewrite_rules = array();
if ($posts) {
foreach ($posts as $post) {
// URI => page name
$uri = get_page_uri($post->ID);
$page_rewrite_rules[$uri] = $post->post_name;
}
update_option('page_uris', $page_rewrite_rules);
save_mod_rewrite_rules();
}
}
?>