Initial Import

git-svn-id: http://svn.automattic.com/wordpress-mu/trunk@1 7be80a69-a1ef-0310-a953-fb0f7c49ff36

1 files changed, 714 insertions, 0 deletions

diff --git a/wp-inst/wp-includes/functions-post.php b/wp-inst/wp-includes/functions-post.php
new file mode 100644
index 0000000..c078ffd
--- /dev/null
+++ b/wp-inst/wp-includes/functions-post.php
@@ -0,0 +1,714 @@
+<?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',     $post_name);
+	
+	// Make sure we set a valid category
+	if (0 == count($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))
+		$comment_status = get_settings('default_comment_status');
+	if (empty($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);
+		}
+    }
+}
+
+
+// query user capabilities
+// rather simplistic. shall evolve with future permission system overhaul
+// $blog_id and $category_id are there for future usage
+
+/* returns true if $user_id can create a new post */
+function user_can_create_post($user_id, $blog_id = 1, $category_id = 'None') {
+	$author_data = get_userdata($user_id);
+	return ($author_data->user_level > 1);
+}
+
+/* returns true if $user_id can create a new post */
+function user_can_create_draft($user_id, $blog_id = 1, $category_id = 'None') {
+	$author_data = get_userdata($user_id);
+	return ($author_data->user_level >= 1);
+}
+
+/* returns true if $user_id can edit $post_id */
+function user_can_edit_post($user_id, $post_id, $blog_id = 1) {
+	$author_data = get_userdata($user_id);
+	$post = get_post($post_id);
+	$post_author_data = get_userdata($post->post_author);
+
+	if ( (($user_id == $post_author_data->ID) && !($post->post_status == 'publish' &&  $author_data->user_level < 2))
+	     || ($author_data->user_level > $post_author_data->user_level)
+	     || ($author_data->user_level >= 10) ) {
+		return true;
+	} else {
+		return false;
+	}
+}
+
+/* returns true if $user_id can delete $post_id */
+function user_can_delete_post($user_id, $post_id, $blog_id = 1) {
+	// right now if one can edit, one can delete
+	return user_can_edit_post($user_id, $post_id, $blog_id);
+}
+
+/* returns true if $user_id can set new posts' dates on $blog_id */
+function user_can_set_post_date($user_id, $blog_id = 1, $category_id = 'None') {
+	$author_data = get_userdata($user_id);
+	return (($author_data->user_level > 4) && user_can_create_post($user_id, $blog_id, $category_id));
+}
+
+/* returns true if $user_id can edit $post_id's date */
+function user_can_edit_post_date($user_id, $post_id, $blog_id = 1) {
+	$author_data = get_userdata($user_id);
+	return (($author_data->user_level > 4) && user_can_edit_post($user_id, $post_id, $blog_id));
+}
+
+/* returns true if $user_id can edit $post_id's comments */
+function user_can_edit_post_comments($user_id, $post_id, $blog_id = 1) {
+	// right now if one can edit a post, one can edit comments made on it
+	return user_can_edit_post($user_id, $post_id, $blog_id);
+}
+
+/* returns true if $user_id can delete $post_id's comments */
+function user_can_delete_post_comments($user_id, $post_id, $blog_id = 1) {
+	// right now if one can edit comments, one can delete comments
+	return user_can_edit_post_comments($user_id, $post_id, $blog_id);
+}
+
+function user_can_edit_user($user_id, $other_user) {
+	$user  = get_userdata($user_id);
+	$other = get_userdata($other_user);
+	if ( $user->user_level > $other->user_level || $user->user_level > 8 || $user->ID == $other->ID )
+		return true;
+	else
+		return false;
+}
+
+function wp_blacklist_check($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);
+		$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 || $userdata->user_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);
+	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 ) ) {
+		while( list( $key, $val ) = each( $custom_fields ) ) { 
+			if( $key == 'enclosure' ) {
+				if (is_array($val)) {
+					foreach($val as $enc) {
+						$enclosure = split( "\n", $enc );
+						$pung[] = trim( $enclosure[ 0 ] );
+					}
+				}
+			}
+		}
+	}
+	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);
+	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);
+	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();
+	}
+}
+
+?>