/blog/wp-content/plugins/shopp/core/functions.php

<?php

/* functions.php
 * Library of global utility functions */

/**
 * Calculate the time based on a repeating interval in a given 
 * month and year. Ex: Fourth Thursday in November (Thanksgiving). */
function datecalc($week=-1,$dayOfWeek=-1,$month=-1,$year=-1) {
	$weekdays = array("sunday" => 0, "monday" => 1, "tuesday" => 2, "wednesday" => 3, "thursday" => 4, "friday" => 5, "saturday" => 6);
	$weeks = array("first" => 1, "second" => 2, "third" => 3, "fourth" => 4, "last" => -1);

	if ($month == -1) $month = date ("n");	// No month provided, use current month
	if ($year == -1) $year = date("Y");   	// No year provided, use current year

	// Day of week is a string, look it up in the weekdays list
	if (!is_numeric($dayOfWeek)) {
		foreach ($weekdays as $dayName => $dayNum) {
			if (strtolower($dayOfWeek) == substr($dayName,0,strlen($dayOfWeek))) {
				$dayOfWeek = $dayNum;
				break;
			}
		}
	}
	if ($dayOfWeek < 0 || $dayOfWeek > 6) return false;
	
	if (!is_numeric($week)) $week = $weeks[$week];	
	
	if ($week == -1) {
		$lastday = date("t", mktime(0,0,0,$month,1,$year));
		$tmp = (date("w",mktime(0,0,0,$month,$lastday,$year)) - $dayOfWeek) % 7;
		if ($tmp < 0) $tmp += 7;
		$day = $lastday - $tmp;
	} else {
		$tmp = ($dayOfWeek - date("w",mktime(0,0,0,$month,1,$year))) % 7;
		if ($tmp < 0) $tmp += 7;
		$day = (7 * $week) - 6 + $tmp;
	}
	
	return mktime(0,0,0,$month,$day,$year);
}

/**
 * Converts a datetime value from a MySQL datetime format to a Unix timestamp. */
function mktimestamp ($datetime) {
	$h = $mn = $s = 0;
	list($Y, $M, $D, $h, $mn, $s) = sscanf($datetime,"%d-%d-%d %d:%d:%d");
	return mktime($h, $mn, $s, $M, $D, $Y);
}

/**
 * Converts a Unix timestamp value to a datetime format suitable for entry in a
 * MySQL record. */
function mkdatetime ($timestamp) {
	return date("Y-m-d H:i:s",$timestamp);
}

/**
 * Returns the corresponding 24-hour $hour based on a 12-hour based $hour
 * and the AM (Ante Meridiem) / PM (Post Meridiem) $meridiem. */
function mk24hour ($hour, $meridiem) {
	if ($hour < 12 && $meridiem == "PM") return $hour + 12;
	if ($hour == 12 && $meridiem == "AM") return 0;
	return $hour;
}

/**
 * Returns a string of the number of years, months, days, hours, 
 * minutes and even seconds from a specified date ($date). */
function readableTime($date, $long = false) {

	$secs = time() - $date;
	if (!$secs) return false;
	$i = 0; $j = 1;
	$desc = array(1 => 'second',
				  60 => 'minute',
				  3600 => 'hour',
				  86400 => 'day',

				  604800 => 'week',
				  2628000 => 'month',
				  31536000 => 'year');


	while (list($k,) = each($desc)) $breaks[] = $k;
	sort($breaks);

	while ($i < count($breaks) && $secs >= $breaks[$i]) $i++;
	$i--;
	$break = $breaks[$i];

	$val = intval($secs / $break);
	$retval = $val . ' ' . $desc[$break] . ($val>1?'s':'');

	if ($long && $i > 0) {
		$rest = $secs % $break;
		$break = $breaks[--$i];
		$rest = intval($rest/$break);

		if ($rest > 0) {
			$resttime = $rest.' '.$desc[$break].($rest > 1?'s':'');

			$retval .= ", $resttime";
		}
	}

	return $retval;
}

function duration ($start,$end) {
	return ceil(($end - $start) / 86400);
}

/** 
 * Sends an e-mail message in the format of a specified e-mail 
 * template ($template) file providing variable substitution 
 * for variables appearing in the template as a bracketed
 * [variable] with data from the coinciding $data['variable']
 * or $_POST['variable'] */
function shopp_email ($template,$data=array()) {
	
	if (strpos($template,"\r\n") !== false) $f = explode("\r\n",$template);
	else {
		if (file_exists($template)) $f = file($template);
		else new ShoppError(__("Could not open the email template because the file does not exist or is not readable.","Shopp"),'email_template',SHOPP_ADMIN_ERR,array('template'=>$template));
	}

	$replacements = array(
		"$" => "\\\$",		// Treat $ signs as literals
		"€" => "&euro;",	// Fix euro symbols
		"¥" => "&yen;",		// Fix yen symbols
		"£" => "&pound;",	// Fix pound symbols
		"¤" => "&curren;"	// Fix generic currency symbols
	);

	$debug = false;
	$in_body = false;
	$headers = "";
	$message = "";
	$protected = array("from","to","subject","cc","bcc");
	while ( list($linenum,$line) = each($f) ) {
		$line = rtrim($line);
		// Data parse
		if ( preg_match_all("/\[(.+?)\]/",$line,$labels,PREG_SET_ORDER) ) {
			while ( list($i,$label) = each($labels) ) {
				$code = $label[1];
				if (empty($data)) $string = $_POST[$code];
				else $string = $data[$code];

				$string = str_replace(array_keys($replacements),array_values($replacements),$string); 

				if (isset($string) && !is_array($string)) $line = preg_replace("/\[".$code."\]/",$string,$line);
			}
		}

		// Header parse
		if ( preg_match("/^(.+?):\s(.+)$/",$line,$found) && !$in_body ) {
			$header = $found[1];
			$string = $found[2];
			if (in_array(strtolower($header),$protected)) // Protect against header injection
				$string = str_replace(array("\r","\n"),"",urldecode($string));
			if ( strtolower($header) == "to" ) $to = $string;
			else if ( strtolower($header) == "subject" ) $subject = $string;
			else $headers .= $line."\n";
		}
		
		// Catches the first blank line to begin capturing message body
		if ( empty($line) ) $in_body = true;
		if ( $in_body ) $message .= $line."\n";
	}

	if (!$debug) return mail($to,$subject,$message,$headers);
	else {
		echo "<pre>";
		echo "To: $to\n";
		echo "Subject: $subject\n\n";
		echo "Message:\n$message\n";
		echo "Headers:\n";
		print_r($headers);
		echo "<pre>";
		exit();		
	}
}

/**
 * Generates an RSS-compliant string from an associative 
 * array ($data) with a specific RSS-structure. */
function shopp_rss ($data) {
	$xmlns = '';
	if (is_array($data['xmlns']))
		foreach ($data['xmlns'] as $key => $value)
			$xmlns .= ' xmlns:'.$key.'="'.$value.'"';

	$xml = "<?xml version=\"1.0\""." encoding=\"utf-8\"?>\n";
	$xml .= "<rss version=\"2.0\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\" xmlns:atom=\"http://www.w3.org/2005/Atom\" xmlns:g=\"http://base.google.com/ns/1.0\"$xmlns>\n";
	$xml .= "<channel>\n";

	$xml .= '<atom:link href="'.htmlentities($data['link']).'" rel="self" type="application/rss+xml" />'."\n";
	$xml .= "<title>".$data['title']."</title>\n";
	$xml .= "<description>".$data['description']."</description>\n";
	$xml .= "<link>".htmlentities($data['link'])."</link>\n";
	$xml .= "<language>en-us</language>\n";
	$xml .= "<copyright>Copyright ".date('Y').", ".$data['sitename']."</copyright>\n";
	
	if (is_array($data['items'])) {
		foreach($data['items'] as $item) {
			$xml .= "<item>\n";
			foreach ($item as $key => $value) {
				$attrs = '';
				if (is_array($value)) {
					$data = $value;
					$value = '';
					foreach ($data as $name => $content) {
						if (empty($name)) $value = $content;
						else $attrs .= ' '.$name.'="'.$content.'"';
					}
				}
				if (!empty($value)) $xml .= "<$key$attrs>$value</$key>\n";
				else $xml .= "<$key$attrs />\n";
			}
			$xml .= "</item>\n";
		}
	}
	
	$xml .= "</channel>\n";
	$xml .= "</rss>\n";
	
	return $xml;
}

function shopp_image () {
	$db =& DB::get();
	require("model/Asset.php");
	$table = DatabaseObject::tablename(Settings::$table);
	$settings = $db->query("SELECT name,value FROM $table WHERE name='image_storage' OR name='image_path'",AS_ARRAY);
	foreach ($settings as $setting) ${$setting->name} = $setting->value;

	if (isset($_GET['shopp_image'])) $image = $_GET['shopp_image'];
	elseif (preg_match('/\/images\/(\d+).*$/',$_SERVER['REQUEST_URI'],$matches)) 
		$image = $matches[1];

	if (empty($image)) die();
	$Asset = new Asset($image);
	header('Last-Modified: '.date('D, d M Y H:i:s', $Asset->created).' GMT'); 
	header("Content-type: ".$Asset->properties['mimetype']);
	header("Content-Disposition: inline; filename=".$Asset->name.""); 
	header("Content-Description: Delivered by WordPress/Shopp ".SHOPP_VERSION);
	if ($image_storage == "fs") {
		header ("Content-length: ".@filesize(trailingslashit($image_path).$Asset->name)); 
		readfile(trailingslashit($image_path).$Asset->name);
	} else {
		header ("Content-length: ".strlen($Asset->data)); 
		echo $Asset->data;
	} 
	exit();
}

function shopp_catalog_css () {
	$db =& DB::get();
	$table = DatabaseObject::tablename(Settings::$table);
	$settings = $db->query("SELECT name,value FROM $table WHERE name='gallery_thumbnail_width' OR name='row_products' OR name='row_products' OR name='gallery_small_width' OR name='gallery_small_height'",AS_ARRAY);
	foreach ($settings as $setting) ${$setting->name} = $setting->value;

	$pluginuri = WP_PLUGIN_URL."/".basename(dirname(dirname(__FILE__)))."/";
	$pluginuri = force_ssl($pluginuri);

	if (!isset($row_products)) $row_products = 3;
	$products_per_row = floor((100/$row_products));
	
	ob_start();
	include("ui/styles/catalog.css");
	$file = ob_get_contents();
	ob_end_clean();
	header ("Content-type: text/css");
	header ("Content-Disposition: inline; filename=catalog.css"); 
	header ("Content-Description: Delivered by WordPress/Shopp ".SHOPP_VERSION);
	header ("Content-length: ".strlen($file)); 
	echo $file;
	exit();
}

function shopp_settings_js ($dir="shopp") {
	$db =& DB::get();
	$table = DatabaseObject::tablename(Settings::$table);
	$settings = $db->query("SELECT name,value FROM $table WHERE name='base_operations'",AS_ARRAY);
	foreach ($settings as $setting) ${$setting->name} = $setting->value;
	$base_operations = unserialize($base_operations);
	
	$path = array(PLUGINDIR,$dir,'lang');
	load_plugin_textdomain('Shopp', join(DIRECTORY_SEPARATOR,$path));
	
	ob_start();
	include("ui/behaviors/settings.js");
	$file = ob_get_contents();
	ob_end_clean();
	header ("Content-type: text/javascript");
	header ("Content-Disposition: inline; filename=settings.js"); 
	header ("Content-Description: Delivered by WordPress/Shopp ".SHOPP_VERSION);
	header ("Content-length: ".strlen($file)); 
	echo $file;
	exit();
}

/**
 * Formats a number into a standardized telephone number format */
function phone ($num) {
	if (empty($num)) return "";
	$num = preg_replace("/[A-Za-z\-\s\(\)]/","",$num);
	
	if (strlen($num) == 7) sscanf($num, "%3s%4s", $prefix, $exchange);
	if (strlen($num) == 10) sscanf($num, "%3s%3s%4s", $area, $prefix, $exchange);
	if (strlen($num) == 11) sscanf($num, "%1s%3s%3s%4s",$country, $area, $prefix, $exchange);
	//if (strlen($num) > 11) sscanf($num, "%3s%3s%4s%s", $area, $prefix, $exchange, $ext);
	
	$string = "";
	$string .= (isset($country))?"$country ":"";
	$string .= (isset($area))?"($area) ":"";
	$string .= (isset($prefix))?$prefix:"";
	$string .= (isset($exchange))?"-$exchange":"";
	$string .= (isset($ext))?" x$ext":"";
	return $string;

}

/**
 * Determines if the current client is a known web crawler bot */
function is_robot() {
	$bots = array("Googlebot","TeomaAgent","Zyborg","Gulliver","Architext spider","FAST-WebCrawler","Slurp","Ask Jeeves","ia_archiver","Scooter","Mercator","crawler@fast","Crawler","InfoSeek sidewinder","Lycos_Spider_(T-Rex)","Fluffy the Spider","Ultraseek","MantraAgent","Moget","MuscatFerret","VoilaBot","Sleek Spider","KIT_Fireball","WebCrawler");
	foreach($bots as $bot) {
		if (strpos(strtolower($_SERVER['HTTP_USER_AGENT']),strtolower($bot))) return true;
	}
	return false;
}

function shopp_prereqs () {
	$errors = array();
	// Check PHP version, this won't appear much since syntax errors in earlier
	// PHP releases will cause this code to never be executed
	if (!version_compare(PHP_VERSION, '5.0','>=')) 
		$errors[] = __("Shopp requires PHP version 5.0+.  You are using PHP version ").PHP_VERSION;

	if (version_compare(PHP_VERSION, '5.1.3','==')) 
		$errors[] = __("Shopp will not work with PHP version 5.1.3 because of a critical bug in complex POST data structures.  Please upgrade PHP to version 5.1.4 or higher.");
		
	// Check WordPress version
	if (!version_compare(get_bloginfo('version'),'2.6','>='))
		$errors[] = __("Shopp requires WordPress version 2.6+.  You are using WordPress version ").get_bloginfo('version');
	
	// Check for cURL
	if( !function_exists("curl_init") &&
	      !function_exists("curl_setopt") &&
	      !function_exists("curl_exec") &&
	      !function_exists("curl_close") ) $errors[] = __("Shopp requires the cURL library for processing transactions securely. Your web hosting environment does not currently have cURL installed (or built into PHP).");
	
	// Check for GD
	if (!function_exists("gd_info")) $errors[] = __("Shopp requires the GD image library with JPEG support for generating gallery and thumbnail images.  Your web hosting environment does not currently have GD installed (or built into PHP).");
	else {
		$gd = gd_info();
		if (!$gd['JPG Support'] && !$gd['JPEG Support']) $errors[] = __("Shopp requires JPEG support in the GD image library.  Your web hosting environment does not currently have a version of GD installed that has JPEG support.");
	}
	
	if (!empty($errors)) {
		$string .= '<style type="text/css">body { font: 13px/1 "Lucida Grande", "Lucida Sans Unicode", Tahoma, Verdana, sans-serif; } p { margin: 10px; }</style>';
		
		foreach ($errors as $error) $string .= "<p>$error</p>";

		$string .= '<p>'.__('Sorry! You will not be able to use Shopp.  For more information, see the <a href="http://docs.shopplugin.net/Installation" target="_blank">online Shopp documentation.</a>').'</p>';
		
		trigger_error($string,E_USER_ERROR);
		exit();
	}
	return true;
}

if( !function_exists('esc_url') ) {
	/**
	 * Checks and cleans a URL.  From WordPress 2.8.0+  Included for WordPress 2.7 Users of Shopp
	 *
	 * A number of characters are removed from the URL. If the URL is for displaying
	 * (the default behaviour) amperstands are also replaced. The 'esc_url' filter
	 * is applied to the returned cleaned URL.
	 *
	 * @since 2.8.0
	 * @uses esc_url()
	 * @uses wp_kses_bad_protocol() To only permit protocols in the URL set
	 *		via $protocols or the common ones set in the function.
	 *
	 * @param string $url The URL to be cleaned.
	 * @param array $protocols Optional. An array of acceptable protocols.
	 *		Defaults to 'http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet' if not set.
	 * @return string The cleaned $url after the 'cleaned_url' filter is applied.
	 */
	function esc_url( $url, $protocols = null ) {
		return clean_url( $url, $protocols, 'display' );
	}
}

function shopp_debug ($object) {
	global $Shopp;
	ob_start();
	print_r($object);
	$result = ob_get_contents();
	ob_end_clean();
	$Shopp->_debug->objects .= "<br/><br/>".str_replace("\n","<br/>",$result);
}

function _object_r ($object) {
	global $Shopp;
	ob_start();
	print_r($object);
	$result = ob_get_contents();
	ob_end_clean();
	return $result;
}

function shopp_pagename ($page) {
	global $is_IIS;
	$prefix = strpos($page,"index.php/");
	if ($prefix !== false) return substr($page,$prefix+10);
	else return $page;
}

function shopp_redirect ($uri) {
	if (class_exists('ShoppError'))	new ShoppError('Redirecting to: '.$uri,'shopp_redirect',SHOPP_DEBUG_ERR);
	wp_redirect($uri);
	exit();
}

function get_filemeta ($file) {
	if (!file_exists($file)) return false;
	if (!is_readable($file)) return false;

	$meta = false;
	$string = "";
	
	$f = @fopen($file, "r");
	if (!$f) return false;
	while (!feof($f)) {
		$buffer = fgets($f,80);
		if (preg_match("/\/\*/",$buffer)) $meta = true;
		if ($meta) $string .= $buffer;
		if (preg_match("/\*\//",$buffer)) break;
	}
	fclose($f);

	return $string;
}

/**
 * Recursively searches directories and one-level deep of 
 * sub-directories for files with a specific extension
 * NOTE: Files are saved to the $found parameter, 
 * an array passed by reference, not a returned value */
function find_files ($extension, $directory, $root, &$found) {
	if (is_dir($directory)) {
		
		$Directory = @dir($directory);
		if ($Directory) {
			while (( $file = $Directory->read() ) !== false) {
				if (substr($file,0,1) == "." || substr($file,0,1) == "_") continue;				// Ignore .dot files and _directories
				if (is_dir($directory.DIRECTORY_SEPARATOR.$file) && $directory == $root)		// Scan one deep more than root
					find_files($extension,$directory.DIRECTORY_SEPARATOR.$file,$root, $found);	// but avoid recursive scans
				if (substr($file,strlen($extension)*-1) == $extension)
					$found[] = substr($directory,strlen($root)).DIRECTORY_SEPARATOR.$file;		// Add the file to the found list
			}
			return true;
		}
	}
	return false;
}

if (!function_exists('json_encode')) {
	function json_encode ($a = false) {
		if (is_null($a)) return 'null';
		if ($a === false) return 'false';
		if ($a === true) return 'true';
		if (is_scalar($a)) {
			if (is_float($a)) {
				// Always use "." for floats.
				return floatval(str_replace(",", ".", strval($a)));
			}

			if (is_string($a)) {
				static $jsonReplaces = array(array("\\", "/", "\n", "\t", "\r", "\b", "\f", '"'), array('\\\\', '\\/', '\\n', '\\t', '\\r', '\\b', '\\f', '\"'));
				return '"' . str_replace($jsonReplaces[0], $jsonReplaces[1], $a) . '"';
			} else return $a;
		}

		$isList = true;
		for ($i = 0, reset($a); $i < count($a); $i++, next($a)) {
			if (key($a) !== $i) {
				$isList = false;
				break;
			}
		}

		$result = array();
		if ($isList) {
			foreach ($a as $v) $result[] = json_encode($v);
			return '[' . join(',', $result) . ']';
		} else {
			foreach ($a as $k => $v) $result[] = json_encode($k).':'.json_encode($v);
			return '{' . join(',', $result) . '}';
		}
	}
}


/**
 * List files and directories inside the specified path */
if(!function_exists('scandir')) {
	function scandir($dir, $sortorder = 0) {
		if(is_dir($dir) && $dirlist = @opendir($dir)) {
			$files = array();
			while(($file = readdir($dirlist)) !== false) $files[] = $file;
			closedir($dirlist);
			($sortorder == 0) ? asort($files) : rsort($files);
			return $files;
		} else return false;
	}
}

function filter_dotfiles ($name) {
	return (substr($name,0,1) != ".");
}

/**
 * Checks an object for a declared property
 * if() checks to see if the function is already available (as in PHP 5) */
if (!function_exists('property_exists')) {
	function property_exists($object, $property) {
		return array_key_exists($property, get_object_vars($object));
	}
}

if (!function_exists('attribute_escape_deep')) {
	function attribute_escape_deep($value) {
		 $value = is_array($value) ?
			 array_map('attribute_escape_deep', $value) :
			 attribute_escape($value);
		 return $value;
	}
}

function auto_ranges ($avg,$max,$min) {
	$ranges = array();
	if ($avg == 0 || $max == 0) return $ranges;
	$power = floor(log10($avg));
	$scale = pow(10,$power);
	$median = round($avg/$scale)*$scale;
	$range = $max-$min;
	
	if ($range == 0) return $ranges;
	
	$steps = floor($range/$scale);
	if ($steps > 7) $steps = 7;
	elseif ($steps < 2) {
		$scale = $scale/2;
		$steps = ceil($range/$scale);
		if ($steps > 7) $steps = 7;
		elseif ($steps < 2) $steps = 2;
	}
		
	$base = $median-($scale*floor(($steps-1)/2));
	for ($i = 0; $i < $steps; $i++) {
		$range = array("min" => 0,"max" => 0);
		if ($i == 0) $range['max'] = $base;
		else if ($i+1 >= $steps) $range['min'] = $base;
		else $range = array("min" => $base, "max" => $base+$scale);
		$ranges[] = $range;
		if ($i > 0) $base += $scale;
	}
	return $ranges;
}

function floatvalue($value, $format=true) {
	$value = preg_replace("/[^\d,\.]/","",$value); // Remove any non-numeric string data
	$value = preg_replace("/,/",".",$value); // Replace commas with periods
	$value = preg_replace("/[^0-9\.]/","", $value); // Get rid of everything but numbers and periods
	$value = preg_replace("/\.(?=.*\..*$)/s","",$value); // Replace all but the last period
    $value = preg_replace('#^([-]*[0-9\.,\' ]+?)((\.|,){1}([0-9-]{1,2}))*$#e', "str_replace(array('.', ',', \"'\", ' '), '', '\\1') . '.' . sprintf('%02d','\\4')", $value);
	if($format) return number_format(floatval($value),2);
	else return floatval($value);
}

/**
 * sort_tree
 * Sorts a heirarchical tree of data */
function sort_tree ($items,$parent=0,$key=-1,$depth=-1) {
	$depth++;
	$result = array();
	if ($items) { 
		foreach ($items as $item) {
			if ($item->parent == $parent) {
				$item->parentkey = $key;
				$item->depth = $depth;
				$result[] = $item;
				$children = sort_tree($items, $item->id, count($result)-1, $depth);
				$result = array_merge($result,$children); // Add children in as they are found
			}
		}
	}
	$depth--;
	return $result;
}

/**
 * file_mimetype
 * Tries a variety of methods to determine a file's mimetype */
function file_mimetype ($file,$name=false) {
	if (!$name) $name = basename($file);
	if (function_exists('finfo_open')) {
		// Try using PECL module
		$f = finfo_open(FILEINFO_MIME);
		list($mime,$charset) = explode(";",finfo_file($f, $file));
		finfo_close($f);
		new ShoppError('File mimetype detection (finfo_open): '.$mime,false,SHOPP_DEBUG_ERR);
		return $mime;
	} elseif (class_exists('finfo')) {
		// Or class
		$f = new finfo(FILEINFO_MIME);
		new ShoppError('File mimetype detection (finfo class): '.$f->file($file),false,SHOPP_DEBUG_ERR);
		return $f->file($file);
	} elseif (strlen($mime=trim(@shell_exec('file -bI "'.escapeshellarg($file).'"')))!=0) {
		new ShoppError('File mimetype detection (shell file command): '.$mime,false,SHOPP_DEBUG_ERR);
		// Use shell if allowed
		return trim($mime);
	} elseif (strlen($mime=trim(@shell_exec('file -bi "'.escapeshellarg($file).'"')))!=0) {
		new ShoppError('File mimetype detection (shell file command, alt options): '.$mime,false,SHOPP_DEBUG_ERR);
		// Use shell if allowed
		return trim($mime);
	} elseif (function_exists('mime_content_type') && $mime = mime_content_type($file)) {
		// Try with magic-mime if available
		new ShoppError('File mimetype detection (mime_content_type()): '.$mime,false,SHOPP_DEBUG_ERR);
		return $mime;
	} else {
		if (!preg_match('/\.([a-z0-9]{2,4})$/i', $name, $extension)) return false;
				
		switch (strtolower($extension[1])) {
			// misc files
			case 'txt':	return 'text/plain';
			case 'htm': case 'html': case 'php': return 'text/html';
			case 'css': return 'text/css';
			case 'js': return 'application/javascript';
			case 'json': return 'application/json';
			case 'xml': return 'application/xml';
			case 'swf':	return 'application/x-shockwave-flash';
		
			// images
			case 'jpg': case 'jpeg': case 'jpe': return 'image/jpg';
			case 'png': case 'gif': case 'bmp': case 'tiff': return 'image/'.strtolower($matches[1]);
			case 'tif': return 'image/tif';
			case 'svg': case 'svgz': return 'image/svg+xml';
		
			// archives
			case 'zip':	return 'application/zip';
			case 'rar':	return 'application/x-rar-compressed';
			case 'exe':	case 'msi':	return 'application/x-msdownload';
			case 'tar':	return 'application/x-tar';
			case 'cab': return 'application/vnd.ms-cab-compressed';
		
			// audio/video
			case 'flv':	return 'video/x-flv';
			case 'mpeg': case 'mpg':	case 'mpe': return 'video/mpeg';
			case 'mp4s': return 'application/mp4';
			case 'mp3': return 'audio/mpeg3';
			case 'wav':	return 'audio/wav';
			case 'aiff': case 'aif': return 'audio/aiff';
			case 'avi':	return 'video/msvideo';
			case 'wmv':	return 'video/x-ms-wmv';
			case 'mov':	case 'qt': return 'video/quicktime';
		
			// ms office
			case 'doc':	case 'docx': return 'application/msword';
			case 'xls':	case 'xlt':	case 'xlm':	case 'xld':	case 'xla':	case 'xlc':	case 'xlw':	case 'xll':	return 'application/vnd.ms-excel';
			case 'ppt':	case 'pps':	return 'application/vnd.ms-powerpoint';
			case 'rtf':	return 'application/rtf';
		
			// adobe
			case 'pdf':	return 'application/pdf';
			case 'psd': return 'image/vnd.adobe.photoshop';
		    case 'ai': case 'eps': case 'ps': return 'application/postscript';
		
			// open office
		    case 'odt': return 'application/vnd.oasis.opendocument.text';
		    case 'ods': return 'application/vnd.oasis.opendocument.spreadsheet';
		}

		return false;
	}
}

/**
 * Returns a list marked-up as drop-down menu options */
function menuoptions ($list,$selected=null,$values=false,$extend=false) {
	if (!is_array($list)) return "";
	$string = "";
	// Extend the options if the selected value doesn't exist
	if ((!in_array($selected,$list) && !isset($list[$selected])) && $extend)
		$string .= "<option value=\"$selected\">$selected</option>";
	foreach ($list as $value => $text) {
		if ($values) {
			if ($value == $selected) $string .= "<option value=\"$value\" selected=\"selected\">$text</option>";
			else  $string .= "<option value=\"$value\">$text</option>";
		} else {
			if ($text == $selected) $string .= "<option selected=\"selected\">$text</option>";
			else  $string .= "<option>$text</option>";
		}
	}
	return $string;
}

function scan_money_format ($format) {
	$f = array(
		"cpos" => true,
		"currency" => "",
		"precision" => 0,
		"decimals" => "",
		"thousands" => ""
	);
	
	$ds = strpos($format,'#'); $de = strrpos($format,'#')+1;
	$df = substr($format,$ds,($de-$ds));

	if ($df == "#,##,###.##") $f['indian'] = true;
	
	$f['cpos'] = true;
	if ($de == strlen($format)) $f['currency'] = substr($format,0,$ds);
	else {
		$f['currency'] = substr($format,$de);
		$f['cpos'] = false;
	}

	$i = 0; $dd = 0;
	$dl = array();
	$sdl = "";
	$uniform = true;
	while($i < strlen($df)) {
		$c = substr($df,$i++,1);
		if ($c != "#") {
			if(empty($sdl)) $sdl = $c;
			else if($sdl != $c) $uniform = false;
			$dl[] = $c;
			$dd = 0;
		} else $dd++;
	}
	if(!$uniform) $f['precision'] = $dd;
	
	if (count($dl) > 1) {
		if ($dl[0] == "t") {
			$f['thousands'] = $dl[1];
			$f['precision'] = 0;
		}
		else {
			$f['decimals'] = $dl[count($dl)-1];
			$f['thousands'] = $dl[0];			
		}
	} else $f['decimals'] = $dl[0];

	return $f;
}

function money ($amount,$format=false) {
	global $Shopp;
	$locale = $Shopp->Settings->get('base_operations');
	if (!$format) $format = $locale['currency']['format'];
	if (empty($format['currency'])) 
		$format = array("cpos"=>true,"currency"=>"$","precision"=>2,"decimals"=>".","thousands" => ",");

	if (isset($format['indian'])) $number = indian_number($amount,$format);
	else $number = number_format($amount, $format['precision'], $format['decimals'], $format['thousands']);
	if ($format['cpos']) return $format['currency'].$number;
	else return $number.$format['currency'];
}

function percentage ($amount,$format=false) {
	global $Shopp;
	
	$locale = $Shopp->Settings->get('base_operations');
	if (!$format) {
		$format = $locale['currency']['format'];
		$format['precision'] = 0;
	}
	if (!$format) $format = array("precision"=>1,"decimals"=>".","thousands" => ",");
	if (isset($format['indian'])) return indian_number($amount,$format);
	return number_format(round($amount), $format['precision'], $format['decimals'], $format['thousands']).'%';
}

function indian_number ($number,$format=false) {
	if (!$format) $format = array("precision"=>1,"decimals"=>".","thousands" => ",");

	$d = explode(".",$number);
	$number = "";
	$digits = substr($d[0],0,-3); // Get rid of the last 3
	
	if (strlen($d[0]) > 3) $number = substr($d[0],-3);
	else $number = $d[0];
	
	for ($i = 0; $i < (strlen($digits) / 2); $i++)
		$number = substr($digits,(-2*($i+1)),2).((strlen($number) > 0)?$format['thousands'].$number:$number);
	if ($format['precision'] > 0) 
		$number = $number.$format['decimals'].substr(number_format('0.'.$d[1],$format['precision']),2);
	return $number;
	
}

function floatnum ($number) {
	$number = preg_replace("/,/",".",$number); // Replace commas with periods
	$number = preg_replace("/[^0-9\.]/","", $number); // Get rid of everything but numbers and periods
	$number = preg_replace("/\.(?=.*\..+$)/s","",$number); // Replace all but the last period
	return $number;
}

function value_is_true ($value) {
	switch (strtolower($value)) {
		case "yes": case "true": case "1": case "on": return true;
		default: return false;
	}
}

function valid_input ($type) {
	$inputs = array("text","hidden","checkbox","radio","button","submit");
	if (in_array($type,$inputs) !== false) return true;
	return false;
}

function _d($format,$timestamp=false) {
	$tokens = array(
		'D' => array('Mon' => __('Mon','Shopp'),'Tue' => __('Tue','Shopp'),
					'Wed' => __('Wed','Shopp'),'Thu' => __('Thu','Shopp'),
					'Fri' => __('Fri','Shopp'),'Sat' => __('Sat','Shopp'),
					'Sun' => __('Sun','Shopp')),
		'l' => array('Monday' => __('Monday','Shopp'),'Tuesday' => __('Tuesday','Shopp'),
					'Wednesday' => __('Wednesday','Shopp'),'Thursday' => __('Thursday','Shopp'),
					'Friday' => __('Friday','Shopp'),'Saturday' => __('Saturday','Shopp'),
					'Sunday' => __('Sunday','Shopp')),
		'F' => array('January' => __('January','Shopp'),'February' => __('February','Shopp'),
					'March' => __('March','Shopp'),'April' => __('April','Shopp'),
					'May' => __('May','Shopp'),'June' => __('June','Shopp'),
					'July' => __('July','Shopp'),'August' => __('August','Shopp'),
					'September' => __('September','Shopp'),'October' => __('October','Shopp'),
					'November' => __('November','Shopp'),'December' => __('December','Shopp')),
		'M' => array('Jan' => __('Jan','Shopp'),'Feb' => __('Feb','Shopp'),
					'Mar' => __('Mar','Shopp'),'Apr' => __('Apr','Shopp'),
					'May' => __('May','Shopp'),'Jun' => __('Jun','Shopp'),
					'Jul' => __('Jul','Shopp'),'Aug' => __('Aug','Shopp'),
					'Sep' => __('Sep','Shopp'),'Oct' => __('Oct','Shopp'),
					'Nov' => __('Nov','Shopp'),'Dec' => __('Dec','Shopp'))
	);

	if (!$timestamp) $date = date($format);
	else $date = date($format,$timestamp);

	foreach ($tokens as $token => $strings) {
		if ($pos = strpos($format,$token) === false) continue;
		$string = (!$timestamp)?date($token):date($token,$timestamp);
		$date = str_replace($string,$strings[$string],$date);
	}
	return $date;
}

function shopp_taxrate ($override=null,$taxprice=true) {
	global $Shopp;
	$rated = false;
	$taxrate = 0;
	$base = $Shopp->Settings->get('base_operations');

	if ($base['vat']) $rated = true;
	if (!is_null($override)) $rated = (value_is_true($override));
	if (!value_is_true($taxprice)) $rated = false;
	
	if ($rated) $taxrate = $Shopp->Cart->taxrate();
	return $taxrate;
}

function inputattrs ($options,$allowed=array()) {
	if (!is_array($options)) return "";
	if (empty($allowed)) {
		$allowed = array("accesskey","alt","checked","class","disabled","format",
			"minlength","maxlength","readonly","required","size","src","tabindex",
			"title","value");
	}
	$string = "";
	$classes = "";
	if (isset($options['label'])) $options['value'] = $options['label'];
	foreach ($options as $key => $value) {
		if (!in_array($key,$allowed)) continue;
		switch($key) {
			case "class": $classes .= " $value"; break;
			case "disabled": $classes .= " disabled"; $string .= ' disabled="disabled"'; break;
			case "readonly": $classes .= " readonly"; $string .= ' readonly="readonly"'; break;
			case "required": $classes .= " required"; break;
			case "minlength": $classes .= " min$value"; break;
			case "format": $classes .= " $value"; break;
			default:
				$string .= ' '.$key.'="'.$value.'"';
		}
	}
	$string .= ' class="'.trim($classes).'"';
 	return $string;
}

function build_query_request ($request=array()) {
	$query = "";
	foreach ($request as $name => $value) {
		if (strlen($query) > 0) $query .= "&";
		$query .= "$name=$value";
	}
	return $query;
}

function readableFileSize($bytes,$precision=1) {
	$units = array(__("bytes","Shopp"),"KB","MB","GB","TB","PB");
	$sized = $bytes*1;
	if ($sized == 0) return $sized;
	$unit = 0;
	while ($sized > 1024 && ++$unit) $sized = $sized/1024;
	return round($sized,$precision)." ".$units[$unit];
}

// From WP 2.7.0 for backwards compatibility
function shopp_print_column_headers( $type, $id = true ) {
	global $wp_version;
	if (version_compare($wp_version,"2.7.0",">="))
		return print_column_headers($type,$id);

	$type = str_replace('.php', '', $type);
	$columns = shopp_get_column_headers( $type );
	$hidden = array();
	$styles = array();
	
	foreach ( $columns as $column_key => $column_display_name ) {
		$class = ' class="manage-column';
		$class .= " column-$column_key";

		if ( 'cb' == $column_key ) $class .= ' check-column';
		elseif ( in_array($column_key, array('posts', 'comments', 'links')) )
			$class .= ' num';

		$class .= '"';

		$style = '';
		if ( in_array($column_key, $hidden) )
			$style = 'display:none;';

		if ( isset($styles[$type]) && isset($styles[$type][$column_key]) )
			$style .= ' ' . $styles[$type][$column_key];
		$style = ' style="' . $style . '"';
?>
	<th scope="col" <?php echo $id ? "id=\"$column_key\"" : ""; echo $class; echo $style; ?>><?php echo $column_display_name; ?></th>
<?php }
}

// Adapted from WP 2.7.0 for backwards compatibility
function shopp_register_column_headers($screen, $columns) {
	global $wp_version;
	if (version_compare($wp_version,"2.7.0",">="))
		return register_column_headers($screen,$columns);
		
	global $_wp_column_headers;

	if ( !isset($_wp_column_headers) )
		$_wp_column_headers = array();

	$_wp_column_headers[$screen] = $columns;
}

// Adapted from WP 2.7.0 for backwards compatibility
function shopp_get_column_headers($page) {
	global $_wp_column_headers;

	if ( !isset($_wp_column_headers) )
		$_wp_column_headers = array();

	// Store in static to avoid running filters on each call
	if ( isset($_wp_column_headers[$page]) )
		return $_wp_column_headers[$page];

  	return array();
}

function copy_shopp_templates ($src,$target) {
	$builtin = array_filter(scandir($src),"filter_dotfiles");
	foreach ($builtin as $template) {
		$target_file = $target.DIRECTORY_SEPARATOR.$template;
		if (!file_exists($target_file)) {
			$src_file = file_get_contents($src.DIRECTORY_SEPARATOR.$template);
			$file = fopen($target_file,'w');
			$src_file = preg_replace('/^<\?php\s\/\*\*\s+(.*?\s)*?\*\*\/\s\?>\s/','',$src_file);
			fwrite($file,$src_file);
			fclose($file);			
			chmod($target_file,0666);
		}
	}
}

/**
 * Determines if the requested page is a Shopp page or if it matches a given Shopp page
 *
 * @param string $page (optional) Page name to look for in Shopp's page registry
 * @return boolean
 * @author Jonathan Davis
 **/
function is_shopp_page ($page=false) {
	global $Shopp,$wp_query;

	if ($wp_query->post->post_type != "page") return false;
	
	$pages = $Shopp->Settings->get('pages');
		
	// Detect if the requested page is a Shopp page
	if (!$page) {
		foreach ($pages as $page)
			if ($page['id'] == $wp_query->post->ID) return true;
		return false;
	}

	// Determine if the visitor's requested page matches the provided page
	if (!isset($pages[strtolower($page)])) return false;
	$page = $pages[strtolower($page)];
	if ($page['id'] == $wp_query->post->ID) return true;
	return false;
}

function is_shopp_secure () {
	return (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == "on");
}

function template_path ($path) {
	if (DIRECTORY_SEPARATOR == "\\") $path = str_replace("/","\\",$path);
	return $path;
}

function gateway_path ($file) {
	return basename(dirname($file)).DIRECTORY_SEPARATOR.basename($file);
}

function force_ssl ($url) {
	if(isset($_SERVER['HTTPS']) && $_SERVER["HTTPS"] == "on")
		$url = str_replace('http://', 'https://', $url);
	return $url;
}

if ( !function_exists('sys_get_temp_dir')) {
	// For PHP 5 (pre-5.2.1)
	function sys_get_temp_dir() {
		if (!empty($_ENV['TMP'])) return realpath($_ENV['TMP']);
		if (!empty($_ENV['TMPDIR'])) return realpath( $_ENV['TMPDIR']);
		if (!empty($_ENV['TEMP'])) return realpath( $_ENV['TEMP']);
		$tempfile = tempnam(uniqid(rand(),TRUE),'');
		if (file_exists($tempfile)) {
			unlink($tempfile);
			return realpath(dirname($tempfile));
		}
	}
}

class FTPClient {
	var $connected = false;
	var $log = array();
	var $remapped = false;
	
	function FTPClient ($host, $user, $password) {
		$this->connect($host, $user, $password);
		if ($this->connected) ftp_pasv($this->connection,true);
		else return false;
		return true;
	}
	
	/** 
	 * Connects to the FTP server */
	function connect($host, $user, $password) {
		$this->connection = @ftp_connect($host,0,20);
		if (!$this->connection) return false;
		$this->connected = @ftp_login($this->connection,$user,$password);
		if (!$this->connected) return false;
		return true;
	}
	
	/**
	 * update()
	 * Recursively copies files from a src $path to the $remote path */
	function update ($path,$remote) {
		if (is_dir($path)){
			$path = trailingslashit($path);
			// $this->log[] = "The source path is $path";
			$files = scandir($path);	
			$remote = trailingslashit($remote);
			// $this->log[] = "The destination path is $remote";
		} else {
			$files = array(basename($path));
			$path = trailingslashit(dirname($path));
			// $this->log[] = "The source path is $path";
			$remote = trailingslashit(dirname($remote));
			// $this->log[] = "The destination path is $remote";
		}
		
		if (!$this->remapped) $remote = $this->remappath($remote);
		// $this->log[] = "The remapped destination path is $remote";
		
		$excludes = array(".","..");
		foreach ((array)$files as $file) {
			if (in_array($file,$excludes)) continue;
			if (is_dir($path.$file)) {
				if (!@ftp_chdir($this->connection,$remote.$file)) 
					$this->mkdir($remote.$file);
				$this->update($path.$file,$remote.$file);				
			} else $this->put($path.$file,$remote.$file);
		}
		return $this->log;
	}
	
	/**
	 * delete()
	 * Delete the target file, recursively delete directories  */
	function delete ($file) {
		if (empty($file)) return false;
		if (!$this->isdir($file)) return @ftp_delete($this->connection, $file);
		$files = $this->scan($file);
		if (!empty($files)) foreach ($files as $target) $this->delete($target);
		return @ftp_rmdir($this->connection, $file);
	}
	
	/**
	 * put()
	 * Copies the target file to the remote location */
	function put ($file,$remote) {
		if (@ftp_put($this->connection,$remote,$file,FTP_BINARY))
			return @ftp_chmod($this->connection, 0644, $remote);
		else $this->log[] = "Could not move the file from $file to $remote";
	}
	
	/**
	 * mkdir()
	 * Makes a new remote directory with correct permissions */
	function mkdir ($path) {
		if (@ftp_mkdir($this->connection,$path)) 
			@ftp_chmod($this->connection,0755,$path);
		else $this->log[] = "Could not create the directory $path";
	}
	
	/**
	 * mkdir()
	 * Gets the current directory */
	function pwd () {
		return ftp_pwd($this->connection);
	}
	
	/**
	 * scan()
	 * Gets a list of files in a directory/current directory */
	function scan ($path=false) {
		if (!$path) $path = $this->pwd();
		return @ftp_nlist($this->connection,$path);
	}
	
	/**
	 * isdir()
	 * Determines if the file is a directory or a file */
	function isdir ($file=false) {
		if (!$file) $file = $this->pwd();
	    if (@ftp_size($this->connection, $file) == '-1')
	        return true; // Directory
	    else return false; // File
	}
	
	/**
	 * remappath()
	 * Remap a given path to the root path of the FTP server 
	 * to take into account root jails common in FTP setups */
	function remappath ($path) {
		$files = $this->scan();
		foreach ($files as $file) {
			$filepath = trailingslashit($this->pwd()).basename($file);
			if (!$this->isdir($filepath)) continue;
			$index = strrpos($path,$filepath);
			if ($index !== false) {
				$this->remapped = true;
				return substr($path,$index);
			}
		}
		// No remapping needed
		return $path;
	}

}

if (function_exists('date_default_timezone_set')) 
	date_default_timezone_set(get_option('timezone_string'));

shopp_prereqs();  // Run by default at include

?>