functions.php

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	$http_request .= 'Content-Length: '.strlen($query_string)."\r\n";
	$http_request .= "User-Agent: WordPress/" . $wp_version;
	$http_request .= "\r\n\r\n";
	$http_request .= $query_string;
	if ( '' == $trackback_url['port'] )
		$trackback_url['port'] = 80;
	$fs = @fsockopen($trackback_url['host'], $trackback_url['port'], $errno, $errstr, 4);
	@fputs($fs, $http_request);
/*
	$debug_file = 'trackback.log';
	$fp = fopen($debug_file, 'a');
	fwrite($fp, "\n*****\nRequest:\n\n$http_request\n\nResponse:\n\n");
	while(!@feof($fs)) {
		fwrite($fp, @fgets($fs, 4096));
	}
	fwrite($fp, "\n\n");
	fclose($fp);
*/
	@fclose($fs);

	$tb_url = addslashes( $tb_url );
	$wpdb->query("UPDATE $wpdb->posts SET pinged = CONCAT(pinged, '\n', '$tb_url') WHERE ID = '$ID'");
	return $wpdb->query("UPDATE $wpdb->posts SET to_ping = TRIM(REPLACE(to_ping, '$tb_url', '')) WHERE ID = '$ID'");
}

function make_url_footnote($content) {
	preg_match_all('/<a(.+?)href=\"(.+?)\"(.*?)>(.+?)<\/a>/', $content, $matches);
	$j = 0;
	for ($i=0; $i<count($matches[0]); $i++) {
		$links_summary = (!$j) ? "\n" : $links_summary;
		$j++;
		$link_match = $matches[0][$i];
		$link_number = '['.($i+1).']';
		$link_url = $matches[2][$i];
		$link_text = $matches[4][$i];
		$content = str_replace($link_match, $link_text.' '.$link_number, $content);
		$link_url = ((strtolower(substr($link_url,0,7)) != 'http://') && (strtolower(substr($link_url,0,8)) != 'https://')) ? get_settings('home') . $link_url : $link_url;
		$links_summary .= "\n".$link_number.' '.$link_url;
	}
	$content = strip_tags($content);
	$content .= $links_summary;
	return $content;
}


function xmlrpc_getposttitle($content) {
	global $post_default_title;
	if ( preg_match('/<title>(.+?)<\/title>/is', $content, $matchtitle) ) {
		$post_title = $matchtitle[0];
		$post_title = preg_replace('/<title>/si', '', $post_title);
		$post_title = preg_replace('/<\/title>/si', '', $post_title);
	} else {
		$post_title = $post_default_title;
	}
	return $post_title;
}

function xmlrpc_getpostcategory($content) {
	global $post_default_category;
	if ( preg_match('/<category>(.+?)<\/category>/is', $content, $matchcat) ) {
		$post_category = trim($matchcat[1], ',');
		$post_category = explode(',', $post_category);
	} else {
		$post_category = $post_default_category;
	}
	return $post_category;
}

function xmlrpc_removepostdata($content) {
	$content = preg_replace('/<title>(.+?)<\/title>/si', '', $content);
	$content = preg_replace('/<category>(.+?)<\/category>/si', '', $content);
	$content = trim($content);
	return $content;
}

function debug_fopen($filename, $mode) {
	global $debug;
	if ( $debug == 1 ) {
		$fp = fopen($filename, $mode);
		return $fp;
	} else {
		return false;
	}
}

function debug_fwrite($fp, $string) {
	global $debug;
	if ( $debug == 1 ) {
		fwrite($fp, $string);
	}
}

function debug_fclose($fp) {
	global $debug;
	if ( $debug == 1 ) {
		fclose($fp);
	}
}

function spawn_pinger() {
	global $wpdb, $wp_version;
	$doping = false;
	if ( $wpdb->get_var("SELECT ID FROM $wpdb->posts WHERE TRIM(to_ping) != '' LIMIT 1") )
		$doping = true;

	if ( $wpdb->get_var("SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_pingme' OR meta_key = '_encloseme' LIMIT 1") )
		$doping = true;

	if ( substr(php_sapi_name(), 0, 3) == 'cgi' )
		return $doping;

	if ( $doping ) {
		$ping_url = get_settings('siteurl') .'/wp-admin/execute-pings.php';
		$parts = parse_url($ping_url);
		$argyle = @ fsockopen($parts['host'], $_SERVER['SERVER_PORT'], $errno, $errstr, 0.01);
		if ( $argyle )
			fputs($argyle, "GET {$parts['path']}?time=".time()." HTTP/1.0\r\nHost: {$_SERVER['HTTP_HOST']}\r\nUser-Agent: WordPress/{$wp_version}\r\n\r\n");
       }
}

function do_enclose( $content, $post_ID ) {
	global $wp_version, $wpdb;
	include_once (ABSPATH . WPINC . '/class-IXR.php');

	$log = debug_fopen(ABSPATH . '/enclosures.log', 'a');
	$post_links = array();
	debug_fwrite($log, 'BEGIN '.date('YmdHis', time())."\n");

	$pung = get_enclosed( $post_ID );

	$ltrs = '\w';
	$gunk = '/#~:.?+=&%@!\-';
	$punc = '.:?\-';
	$any = $ltrs . $gunk . $punc;

	preg_match_all("{\b http : [$any] +? (?= [$punc] * [^$any] | $)}x", $content, $post_links_temp);

	debug_fwrite($log, 'Post contents:');
	debug_fwrite($log, $content."\n");

	foreach($post_links_temp[0] as $link_test) :
		if ( !in_array($link_test, $pung) ) : // If we haven't pung it already
			$test = parse_url($link_test);
			if ( isset($test['query']) )
				$post_links[] = $link_test;
			elseif (($test['path'] != '/') && ($test['path'] != ''))
				$post_links[] = $link_test;
		endif;
	endforeach;

	foreach ($post_links as $url) :
		if ( $url != '' && !$wpdb->get_var("SELECT post_id FROM $wpdb->postmeta WHERE post_id = '$post_ID' AND meta_key = 'enclosure' AND meta_value LIKE ('$url%')") ) {
			if ( $headers = wp_get_http_headers( $url) ) {
				$len = (int) $headers['content-length'];
				$type = $wpdb->escape( $headers['content-type'] );
				$allowed_types = array( 'video', 'audio' );
				if ( in_array( substr( $type, 0, strpos( $type, "/" ) ), $allowed_types ) ) {
					$meta_value = "$url\n$len\n$type\n";
					$wpdb->query( "INSERT INTO `$wpdb->postmeta` ( `post_id` , `meta_key` , `meta_value` )
					VALUES ( '$post_ID', 'enclosure' , '$meta_value')" );
				}
			}
		}
	endforeach;
}

function wp_get_http_headers( $url, $red = 1 ) {
	global $wp_version;
	@set_time_limit( 60 );

	if ( $red > 5 )
	   return false;

	$parts = parse_url( $url );
	$file = $parts['path'] . ($parts['query'] ? '?'.$parts['query'] : '');
	$host = $parts['host'];
	if ( !isset( $parts['port'] ) )
		$parts['port'] = 80;

	$head = "HEAD $file HTTP/1.1\r\nHOST: $host\r\nUser-Agent: WordPress/" . $wp_version . "\r\n\r\n";

	$fp = @fsockopen($host, $parts['port'], $err_num, $err_msg, 3);
	if ( !$fp )
		return false;

	$response = '';
	fputs( $fp, $head );
	while ( !feof( $fp ) && strpos( $response, "\r\n\r\n" ) == false )
		$response .= fgets( $fp, 2048 );
	fclose( $fp );
	preg_match_all('/(.*?): (.*)\r/', $response, $matches);
	$count = count($matches[1]);
	for ( $i = 0; $i < $count; $i++) {
		$key = strtolower($matches[1][$i]);
		$headers["$key"] = $matches[2][$i];
	}

	preg_match('/.*([0-9]{3}).*/', $response, $return);
	$headers['response'] = $return[1]; // HTTP response code eg 204, 200, 404

    $code = $headers['response'];
    if ( ('302' == $code || '301' == $code) && isset($headers['location']) )
        return wp_get_http_headers( $headers['location'], ++$red );

	return $headers;
}

// Deprecated.  Use the new post loop.
function start_wp() {
	global $wp_query, $post;

	// Since the old style loop is being used, advance the query iterator here.
	$wp_query->next_post();

	setup_postdata($post);
}

// Setup global post data.
function setup_postdata($post) {
	global $id, $postdata, $authordata, $day, $page, $pages, $multipage, $more, $numpages, $wp_query;
	global $pagenow;

	$id = $post->ID;

	$authordata = get_userdata($post->post_author);

	$day = mysql2date('d.m.y', $post->post_date);
	$currentmonth = mysql2date('m', $post->post_date);
	$numpages = 1;
	$page = get_query_var('page');
	if ( !$page )
		$page = 1;
	if ( is_single() || is_page() )
		$more = 1;
	$content = $post->post_content;
	if ( preg_match('/<!--nextpage-->/', $content) ) {
		if ( $page > 1 )
			$more = 1;
		$multipage = 1;
		$content = str_replace("\n<!--nextpage-->\n", '<!--nextpage-->', $content);
		$content = str_replace("\n<!--nextpage-->", '<!--nextpage-->', $content);
		$content = str_replace("<!--nextpage-->\n", '<!--nextpage-->', $content);
		$pages = explode('<!--nextpage-->', $content);
		$numpages = count($pages);
	} else {
		$pages[0] = $post->post_content;
		$multipage = 0;
	}
	return true;
}

// Setup global user vars.  Used by set_current_user() for back compat.
function setup_userdata($user_id = '') {
	global $user_login, $userdata, $user_level, $user_ID, $user_email, $user_url, $user_pass_md5, $user_identity;

	if ( '' == $user_id )
		$user = wp_get_current_user();
	else 
		$user = new WP_User($user_id);

	if ( 0 == $user->ID )
		return;

	$userdata = $user->data;
	$user_login	= $user->user_login;
	$user_level	= $user->user_level;
	$user_ID	= $user->ID;
	$user_email	= $user->user_email;
	$user_url	= $user->user_url;
	$user_pass_md5	= md5($user->user_pass);
	$user_identity	= $user->display_name;
}

function is_new_day() {
	global $day, $previousday;
	if ( $day != $previousday ) {
		return(1);
	} else {
		return(0);
	}
}

// Filters: these are the core of WP's plugin architecture

function merge_filters($tag) {
	global $wp_filter;
	if ( isset($wp_filter['all']) ) {
		foreach ($wp_filter['all'] as $priority => $functions) {
			if ( isset($wp_filter[$tag][$priority]) )
				$wp_filter[$tag][$priority] = array_merge($wp_filter['all'][$priority], $wp_filter[$tag][$priority]);
			else
				$wp_filter[$tag][$priority] = array_merge($wp_filter['all'][$priority], array());
			$wp_filter[$tag][$priority] = array_unique($wp_filter[$tag][$priority]);
		}
	}

	if ( isset($wp_filter[$tag]) )
		ksort( $wp_filter[$tag] );
}

function apply_filters($tag, $string) {
	global $wp_filter;

	$args = array_slice(func_get_args(), 2);

	merge_filters($tag);

	if ( !isset($wp_filter[$tag]) ) {
		return $string;
	}
	foreach ($wp_filter[$tag] as $priority => $functions) {
		if ( !is_null($functions) ) {
			foreach($functions as $function) {

				$all_args = array_merge(array($string), $args);
				$function_name = $function['function'];
				$accepted_args = $function['accepted_args'];

				if ( $accepted_args == 1 )
					$the_args = array($string);
				elseif ( $accepted_args > 1 )
					$the_args = array_slice($all_args, 0, $accepted_args);
				elseif ( $accepted_args == 0 )
					$the_args = NULL;
				else
					$the_args = $all_args;

				$string = call_user_func_array($function_name, $the_args);
			}
		}
	}
	return $string;
}

function add_filter($tag, $function_to_add, $priority = 10, $accepted_args = 1) {
	global $wp_filter;

	// check that we don't already have the same filter at the same priority
	if ( isset($wp_filter[$tag]["$priority"]) ) {
		foreach($wp_filter[$tag]["$priority"] as $filter) {
			// uncomment if we want to match function AND accepted_args
			// if ( $filter == array($function, $accepted_args) ) {
			if ( $filter['function'] == $function_to_add ) {
				return true;
			}
		}
	}

	// So the format is wp_filter['tag']['array of priorities']['array of ['array (functions, accepted_args)]']
	$wp_filter[$tag]["$priority"][] = array('function'=>$function_to_add, 'accepted_args'=>$accepted_args);
	return true;
}

function remove_filter($tag, $function_to_remove, $priority = 10, $accepted_args = 1) {
	global $wp_filter;

	// rebuild the list of filters
	if ( isset($wp_filter[$tag]["$priority"]) ) {
		$new_function_list = array();
		foreach($wp_filter[$tag]["$priority"] as $filter) {
			if ( $filter['function'] != $function_to_remove ) {
				$new_function_list[] = $filter;
			}
		}
		$wp_filter[$tag]["$priority"] = $new_function_list;
	}
	return true;
}

// The *_action functions are just aliases for the *_filter functions, they take special strings instead of generic content

function do_action($tag, $arg = '') {
	global $wp_filter;
	$extra_args = array_slice(func_get_args(), 2);
 	if ( is_array($arg) )
 		$args = array_merge($arg, $extra_args);
	else
		$args = array_merge(array($arg), $extra_args);

	merge_filters($tag);

	if ( !isset($wp_filter[$tag]) ) {
		return;
	}
	foreach ($wp_filter[$tag] as $priority => $functions) {
		if ( !is_null($functions) ) {
			foreach($functions as $function) {

				$function_name = $function['function'];
				$accepted_args = $function['accepted_args'];

				if ( $accepted_args == 1 ) {
					if ( is_array($arg) )
						$the_args = $arg;
					else
						$the_args = array($arg);
				} elseif ( $accepted_args > 1 ) {
					$the_args = array_slice($args, 0, $accepted_args);
				} elseif ( $accepted_args == 0 ) {
					$the_args = NULL;
				} else {
					$the_args = $args;
				}

				$string = call_user_func_array($function_name, $the_args);
			}
		}
	}
}

function add_action($tag, $function_to_add, $priority = 10, $accepted_args = 1) {
	add_filter($tag, $function_to_add, $priority, $accepted_args);
}

function remove_action($tag, $function_to_remove, $priority = 10, $accepted_args = 1) {
	remove_filter($tag, $function_to_remove, $priority, $accepted_args);
}

function get_page_uri($page_id) {
	$page = get_page($page_id);
	$uri = urldecode($page->post_name);

	// A page cannot be it's own parent.
	if ( $page->post_parent == $page->ID )
		return $uri;

	while ($page->post_parent != 0) {
		$page = get_page($page->post_parent);
		$uri = urldecode($page->post_name) . "/" . $uri;
	}

	return $uri;
}

function get_posts($args) {
	global $wpdb;
	parse_str($args, $r);
	if ( !isset($r['numberposts']) )
		$r['numberposts'] = 5;
	if ( !isset($r['offset']) )
		$r['offset'] = 0;
	if ( !isset($r['category']) )
		$r['category'] = '';
	if ( !isset($r['orderby']) )
		$r['orderby'] = 'post_date';
	if ( !isset($r['order']) )
		$r['order'] = 'DESC';

	$now = current_time('mysql');

	$posts = $wpdb->get_results(
		"SELECT DISTINCT * FROM $wpdb->posts " .
		( empty( $r['category'] ) ? "" : ", $wpdb->post2cat " ) .
		" WHERE post_date <= '$now' AND (post_status = 'publish') ".
		( empty( $r['category'] ) ? "" : "AND $wpdb->posts.ID = $wpdb->post2cat.post_id AND $wpdb->post2cat.category_id = " . $r['category']. " " ) .