/lib/general.lib.php

Large files files are truncated, but you can click here to view the full file

<?php if (!defined(JZ_SECURE_ACCESS)) die ('Security breach detected.');
	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *    
	* JINZORA | Web-based Media Streamer   
	*
	* Jinzora is a Web-based media streamer, primarily desgined to stream MP3s 
	* (but can be used for any media file that can stream from HTTP). 
	* Jinzora can be integrated into a CMS site, run as a standalone application, 
	* or integrated into any PHP website.  It is released under the GNU GPL.
	* 
	* Jinzora Author:
	* Ross Carlson: ross@jasbone.com
	* http://www.jinzora.org
	* Documentation: http://www.jinzora.org/docs	
	* Support: http://www.jinzora.org/forum
	* Downloads: http://www.jinzora.org/downloads
	* License: GNU GPL <http://www.gnu.org/copyleft/gpl.html>
	* 
	* Contributors:
	* Please see http://www.jinzora.org/modules.php?op=modload&name=jz_whois&file=index
	*
	* Code Purpose: This page contains all the "general" related functions
	* Created: 9.24.03 by Ross Carlson
	*
	* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
	
	
	
	/** 
	* Setup the Smarty template system
	*
	* @author Ross Carlson
	* @since 2.27.06
	*
	**/
	function smartySetup(){
      global $web_root, $root_dir, $include_path;
      
      $d = dirname(__FILE__);
      $root = substr($d, 0, strlen($d)-4) . "/";
      
      defined('SMARTY_DIR') or define('SMARTY_DIR', $root. 'lib/smarty/');
      defined('SMARTY_ROOT') or define('SMARTY_ROOT', $root);
      require_once(SMARTY_DIR . 'Smarty.class.php');

      $smarty = new Smarty;
      $smarty->compile_dir = $root. 'temp/';
      $smarty->cache_dir = $root. 'temp/';

      return $smarty;
   }
	
	
/* 
 * Gets a global variable without
 * having to declare global.
 * Useful for settings.
 * 
 * @author Ben Dodson
 * @since 1/30/07
 */
  function conf($name) {
  	global $$name;
  	if (isset($$name)) {
	    return $$name;
  	} else {
    	return null;
  	}
  }
	
	
	/** 
	* Verifies that a directory exists and if not creates it
	*
	* @author Ross Carlson
	* @since 11/02/2005
	* @param $dir Name of the directory to create
	*
	**/
	function makedir($dir){
		$dArr = explode("/",$dir);
		$prevDir = "";
		foreach($dArr as $dir){
			$prevDir .= $dir. "/";
			if (!is_dir($prevDir)){
				mkdir($prevDir);
			}
		}
	}
	
	/** 
	* Cleans a potential filename of back characters
	*
	* @author Ross Carlson
	* @since 11/02/2005
	* @param $name Name of the track to clean
	* @return $ret Cleaned track name
	*
	**/
	function cleanFileName($name){
		$badArray = explode(";",';?;";/;\;|;*;<;>;:');	
		for ($e=0;$e<count($badArray);$e++){
			$name = str_replace($badArray[$e],"",$name);
		}
		return $name;
	}
	
	/** 
	* Grabs the data that was parsed from a Podcast
	*
	* @author Ross Carlson
	* @since 11/02/2005
	* @param $item An array with all the values to grab
	* @param $folder The subfolder to store the file in
	* @return boolean true|false
	*
	**/
	function getPodcastData($item, $folder){
		global $include_path, $podcast_folder;
		
		if ($item['file'] == ""){return false;}
		
		$be = new jzBackend();
		$display = new jzDisplay();
		
		// Let's clean the new folder name
		$folder = trim(cleanFileName($folder));
		
		// Let's grab the file and save it to disk
		$ext = substr($item['file'],strlen($item['file'])-3,3);
		$track = trim(cleanFileName($item['title']. ".". $ext));
		
		if (substr($podcast_folder,0,1) <> "/"){
			$dir = str_replace("\\","/",getcwd()). "/". $podcast_folder. "/". $folder;
		} else {
			$dir = $podcast_folder. "/". $folder;
		}
		$track = $dir. "/". $track;
		
		// Now let's create the directory we need
		makedir($dir);
		
		// Now let's see if the file already exists
		if (!is_file($track)){
			?>
			<script language="javascript">
				t.innerHTML = '<?php echo word("Downloading"). ": ". $display->returnShortName($item['title'],45); ?>';									
				-->
			</SCRIPT>
			<?php 							
			flushdisplay();
			// Now let's grab the file and write it out
			$fName = str_replace("&amp;","&",$item['file']);
			$data = file_get_contents($fName);
			$handle = fopen($track, "w");
			fwrite($handle,$data);
			fclose ($handle);
			?>
			<script language="javascript">
				t.innerHTML = '<?php echo word("Download Complete!"); ?>';									
				-->
			</SCRIPT>
			<?php 							
			flushdisplay();
		} else {
			?>
			<script language="javascript">
				t.innerHTML = '<?php echo word("Exists - moving to next track..."); ?>';									
				-->
			</SCRIPT>
			<?php 							
			flushdisplay();
		}
		
		return $track;
	}
	
	/** 
	* Parses a given Podcast URL to retrieve all the enclosures
	*
	* @author Ross Carlson
	* @since 11/02/2005
	* @param $url The URL to parse
	* @return array of the files and descriptions in the XML file
	*
	**/
	function parsePodcastXML($url){
		
		// Let's get the data from the URL
		$data = file_get_contents($url);
		$c=0;
		
		// Now let's parse out the basics about the feed
		$title = substr($data,strpos($data,"<title>")+strlen("<title>"));
		$title = substr($title,0,strpos($title,"</title>"));		
		$desc = substr($data,strpos($data,"<description>")+strlen("<description>"));
		$desc = substr($desc,0,strpos($desc,"</description>"));		
		$pubDate = substr($data,strpos($data,"<pubDate>")+strlen("<pubDate>"));
		$pubDate = substr($pubDate,0,strpos($pubDate,"</pubDate>"));
		$image = "";
		if (stristr($data,"<itunes:image")){
			$image = substr($data,strpos($data,"<itunes:image"));
			$image = substr($image,strpos($image,'href="')+6);
			$image = substr($image,0,strpos($image,'"'));
		}
		
		// Now let's set the array
		$retArray['title'] = $title;
		$retArray['desc'] = $desc;
		$retArray['pubDate'] = $pubDate;
		$retArray['image'] = $image;		
		$c++;
		
		// Now let's get the individual items
		$items = substr($data,strpos($data,"<item>"));
		$iArr = explode("</item>",$items);		
		// Now let's loop
		foreach ($iArr as $item){
			// Now let's parse that out
			$title = substr($item,strpos($item,"<title>")+strlen("<title>"));
			$title = substr($title,0,strpos($title,"</title>"));	
			$desc = substr($item,strpos($item,"<description>")+strlen("<description>"));
			$desc = substr($desc,0,strpos($desc,"</description>"));	
			$desc = str_replace("]]>","",str_replace("<![CDATA[","",$desc));
			$link = substr($item,strpos($item,"<link>")+strlen("<link>"));
			$link = substr($link,0,strpos($link,"</link>"));	
			$pubDate = substr($item,strpos($item,"<pubDate>")+strlen("<pubDate>"));
			$pubDate = substr($pubDate,0,strpos($pubDate,"</pubDate>"));	
			$file = substr($item,strpos($item,'url="')+strlen('url="'));
			$file = substr($file,0,strpos($file,'"'));
			$length = substr($item,strpos($item,'length="')+strlen('length="'));
			$length = substr($length,0,strpos($length,'"'));
			
			// Now let's set the return array
			$retArray[$c]['title'] = $title;
			$retArray[$c]['link'] = $link;
			$retArray[$c]['pubDate'] = $pubDate;
			$retArray[$c]['file'] = $file;
			$retArray[$c]['desc'] = $desc;
			$retArray[$c]['length'] = $length;
			$c++;
		}
		
		// Now let's return 
		return $retArray;
	}
	
	
	/*
	 * Fallback function for stripos
	 * 
	 * @author Ben Dodson, from PHP.net
	 * @since 8/31/06
	 */
	if (!function_exists("stripos")) {
  		function stripos($str,$needle,$offset=0) {
     		return strpos(strtolower($str),strtolower($needle),$offset);
  		}
	}
	
	
	
	/** 
	* Allows you to write 1 setting to a settings file
	*
	* @author Ross Carlson
	* @since 7/04/2005 - Happy 4th all you Americans!!!
	* @param $setting The setting to write
	* @param $val The value to write to the setting
	* @param $file The file to write too (the full path and filename)
	* @return true|false wether the action was successful
	*
	**/
	function writeSetting($setting, $val, $file){
	
		// Now let's open the file and read it in
		$fArr = file($file);
		
		// Let's start our new file
		$newFile = "";
		
		// Now let's loop through and find the setting
		foreach($fArr as $line){
			// Now does this line have the setting we want?
			if (stristr($line,$setting)){
				// Ok we found it, let's change it
				$newFile .=  substr($line,0,strpos($line," =")). ' = "'. $val. '";'. "\n";
			} else {
				// Nope, not the line
				$newFile .= $line;
			}
		}
		
		// Now we need to write the file back out
		if (is_writable($file)){
			$handle = fopen($file, "w");
			fwrite($handle,$newFile);
			fclose ($handle);
			return true;
		} else {
			return false;
		}		
	}

	/** 
	* Checks the site's general security.
	*
	* @author Ben Dodson
	* @since 6/30/05
	*
	**/
	 function checkSecurity() {
		 // TODO: Check the include file; make sure it is index.php
		 // or a CMS-specified file.
		 return;
	 }

	/** 
	* Makes sure a file is safe to include.
	*
	* @author Ben Dodson
	* @since 8/15/05
	*
	**/
	function includeable_file($fname, $dir = false) {
		global $include_path;
		
		if (stristr($fname,'/') !== false) {
			return false;
		}
		
		if (stristr($fname,"\\") !== false) {
			return false;
		}
		
		if ($dir !== false) {
			$dir = $include_path . $dir;
			// make sure it's in $dir.
			if (!is_dir($dir)) {
				die("$dir is not a valid directory.");
			}
			$d = dir($dir);
			while ($entry = $d->read()) {
				if ($entry == $fname) {
					return true;
				}
			}
			return false;
		}
		
		return true;
	}

	function emu_getallheaders() { 
        foreach ($_SERVER as $name => $value) 
       { 
           if (substr($name, 0, 5) == 'HTTP_') 
           { 
               $name = str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5))))); 
               $headers[$name] = $value; 
           } else if ($name == "CONTENT_TYPE") { 
               $headers["Content-Type"] = $value; 
           } else if ($name == "CONTENT_LENGTH") { 
               $headers["Content-Length"] = $value; 
           } 
       } 
       return $headers; 
    }

    if (!function_exists('getallheaders')) { 
       function getallheaders() {
       	  return emu_getallheaders();
       }
   }

	
	/**
	* 
	* Sets a global variable.
	*
	* @author Ben Dodson
	* @since 6/7/05
	* 
	**/
	function setGlobal($var,$val) {
			$GLOBALS[$var] = $val;
		} 

  /**
	* 
	* Gets a global variable.
	*
	* @author Ben Dodson
	* @since 6/7/05
	* 
	**/
	function getGlobal($var) {
		return isset($GLOBALS[$var]) ? $GLOBALS[$var] : false;
	}

	
	/**
	* 
	* Takes binary data and writes it to a file
	*
	* @author Ross Carlson
	* @since 3/31/05
	* @param $file the name of the file (the full path)
	* @param $data the binary data to write to the file
	* @param return returns true or false (bolean)
	* 
	**/
	function writeImage($file, $data){
		global $bad_chars;
		
		foreach ($bad_chars as $item){
			str_replace($item,"",$file);
		}
		
		if (is_file($file)){ unlink($file); }
		$handle = fopen($file, "w");
		if (fwrite($handle,$data)){
			fclose ($handle);
			return true;
		} else {
			fclose ($handle);
			return false;
		}
			
	}

	/**
	 * Makes a string safe for XML
	 * @author php.net
	 * @since 8/11/05
	 **/
	function htmlnumericentities($str){
		return preg_replace('/[^!-%\x27-;=?-~ ]/e', '"&#".ord("$0").chr(59)', $str);
	}

        function xmlentities($string) {
	  return str_replace ( array ( '&', '"', "'", '<', '>', '�' ), array ( '&amp;' , '&quot;', '&apos;' , '&lt;' , '&gt;', '&apos;' ), $string );
        }
	
	/**
	 * @author Ben Dodson
	 * 
	 **/
	function sendFileBundle($myfiles, $name) {
	  global $multiple_download_mode, $download_speed;

		$files = array();
		foreach ($myfiles as $file) {
			if ($file != '' && is_file($file)) {
				$files[] = $file;
			}
		}
	
	  if ($files == array()) {
		exit();
	  }

	  if ($multiple_download_mode == 'tar') {
			$reader = &new jzStreamTar($files);
			header ('Content-Type: application/x-tar');
			header ('Content-Disposition: attachment; filename="' . $name . '.tar"');
	  } else { // assume zip
			$reader = &new jzStreamZip($files);
			header ('Content-Type: application/zip');
			header ('Content-Disposition: attachment; filename="' . $name . '.zip"');
	  }
	  

	  
	  // content length header if supported
	  if (($size = $reader->FinalSize()) != 0) {
	  	$range = getContentRange($size);
		if ($range !== false) {
			$range_from = $range[0];
			$range_to = $range[1];
		} else {
			$range_from = 0;
			$range_to = $size-1;
		}
		
		// BJD 6/30/06:
		// HACK: range_to is not supported- only resuming and requesting entire
		// remains of file
		$range_to = $size-1;
		
		if ($range === false) {
		  // Content length has already been sent
		  header("Content-length: ".(string)$size);
		} else {
				header("HTTP/1.1 206 Partial Content");
				header("Accept-Range: bytes");
				header("Content-Length: " . ($size - $range_from));
				header("Content-Range: bytes $range_from" . "-" . ($range_to) . "/$size");
		}
	  } else {
	  	$range = false;
	  	$range_from = $range_to = 0;
	  }
	  
	  // caching headers
	  header("Cache-control: private");
	  header("Expires: " . gmdate("D, d M Y H:i:s", mktime(date("H") + 8, date("i"), date("s"), date("m"), date("d"), date("Y"))) . " GMT");
	  
	  //header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
	  $lastmod = 0;
	  foreach ($files as $f) {
	  	if (($t = filemtime($f)) > $lastmod) {
	  		$lastmod = $t;
	  	}
	  }
	  
	  header("Last-Modified: " . gmdate("D, d M Y H:i:s", $lastmod) . " GMT");
	  header("Pragma: no-cache");
	  
	  // Let's up the max_execution_time
	  //ini_set('max_execution_time','6000');
	  @set_time_limit(0);
	  // open reader
	  $reader->Open();
	 
	  // Are we resuming?
	  if ($range_from > 0) {
	  	$reader->Read($range_from);
	  }

	  // let's send, no speed limit
	  if ($download_speed == 0 || $download_speed == "") {
		while ( ($data=$reader->Read(4096))!='' and connection_status()==0 ) {
		  echo $data;
		  flush();
		}
	  } else {
		// let's send, looking at the speed
		$sent = 0;
		$begin_time = get_time();
		while ( ($data=$reader->Read(4096))!='' and connection_status()==0 ) {
		  echo $data;
		  flush();
		  $sent += 4;
		  // if current speed is too high, let's wait a bit
		  while ($sent/(get_time()-$begin_time) > $download_speed) {
		sleep(1);
		  }
		}
	  }
	  
	  // close reader
	  $reader->Close(); 
	
	  @set_time_limit(30);
	  //write the result in log
	  if (connection_status() == 0) {
		writeLogData('download','download of '.$name.' sucessful');
	  }
	  else {
		writeLogData('download','download of '.$name.' failed');
	  }
	
	}
	
		
	/**
	 * Displays the image in a browser.
	 * 
	 *  
	 * @author Ben Dodson
	 * @version 11/10/04
	 * @since 11/10/04
	 */	
	function showImage ($path) {
		global $include_path;
		
		// Now let's see if this is an ID3 image or not
		if (stristr($path,"ID3:")){
			// Now let's get the data we need
			include_once($include_path. 'services/class.php');
			$jzSERVICES = new jzServices();
			$jzSERVICES->loadStandardServices();
			
			// Now let's fix the path
			$path = substr($path,4);
			$meta = $jzSERVICES->getTagData($path);
			
			// Now let's set the header
			header("Content-Type: ". $meta['pic_mime']);
			sendID3Image($path, $meta['pic_name'],$meta['pic_data']);
		} else {
			$arr = explode("/",$path);
			if (sizeof($arr > 0))
				$name = $arr[sizeof($arr)-1];
			else
				$name = $path;	
			
			if (substr($path, -3) == "jpg" || substr($path, -4) == "jpeg" || substr($path, -3) == "jpe")
				header("Content-Type: image/jpeg");
			
			else if (substr($path, -3) == "gif")	
				header("Content-Type: image/gif");
			
			else if (substr($path, -3) == "png")
				header("Content-Type: image/png");
			
			else if (substr($path, -3) == "bmp")
				header("Content-Type: image/bmp");
		}
		
		// TODO: GD stuff; synchronize args with jzDisplay::image.
		// images are small, so don't worry about handling stream stuff.
		streamFile($path,$name);
	}


   /** 
	 * Sends the content-type header
	 *
	 * @author Ben Dodson
	 * @version 8/17/05
	 * @since 8/17/05
	 **/
	function sendContentType($ext) {
	  switch ($ext){
	  case "mp3":
	    header("Content-Type: audio/mpeg");
	    break;
	  case "wav":
	    header("Content-Type: audio/x-wav");
	    break;
	  case "mpc":
	    header("Content-Type: application/mpc");
	    break;
	  case "wv":
	    header("Content-Type: application/wv");
	    break;
	  case ".ra":
	  case ".rm":
	    header("Content-Type: audio/x-pn-realaudio");
	    break;
	  case "flac":
	    header("Content-Type: application/flac");
	    break;
	  case "ogg":
	    header("Content-Type: application/ogg");
	    break;
	  case "avi":
	    header("Content-Type: video/x-msvideo");
	    break;
	  case "mpg":
	  case "mpeg":
	    header("Content-Type: video/x-mpeg");		
	    break;
	  case "asf":
	  case "asx":
	  case "wma":
	  case "wmv":
	    header("Content-Type: video/x-ms-asf");
	    break;
	  case "mov":
	    header("Content-Type: application/x-quicktimeplayer");
	    break;
		case "flv":
	    header("Content-Type: video/x-flv");
	    break;
	  case "mid":
	  case "midi":
	    header("Content-Type: audio/midi");
	    break;
	  case "aac":
	  case "mp4":
	    header("Content-Type: application/x-quicktimeplayer");
	    break;
	  }
	}


	/**
	 * Sends a clip of a media file.
	 * 
	 * @author Ben Dodson
	 * @version 8/17/05
	 * @since 8/17/05
	 */	
   function sendClip($el) {
	   global $clip_length, $clip_start;

	   if (!$el->isLeaf()) {
	     return false;
	   }

	   $fname = $el->getFilename("host");
	   $ext = substr($fname,strrpos($fname,".")+1);

	   $clipfile = substr($fname,0,-4).".clip." . $ext;
	   if (is_file($clipfile)) {
	     sendMedia($clipfile, $el->getName() . " Clip." . $ext);
	     exit();
	   }

	   $meta = $el->getMeta();
	   $bitrate = $meta['bitrate'];
	   if (!is_numeric($bitrate)) {
	     // Let's assume 160.
	     $bitrate = 160;
	   }

	   $cstart = $clip_start * ($bitrate * 1024 / 8);
	   $clength = $clip_length * ($bitrate * 1024 / 8);

	   $contents = substr(file_get_contents($fname),$cstart,$clength);
	   sendContentType($ext);
	   header("Content-length: " . $clength);
	   header("Content-Disposition: inline; filename=\"".$el->getName() . " Clip." . $ext."\"");
	   header("Expires: ".gmdate("D, d M Y H:i:s", mktime(date("H")+2, date("i"), date("s"), date("m"), date("d"), date("Y")))." GMT");
	   header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT");
	   header("Cache-Control: no-cache, must-revalidate");
	   header("Pragma: no-cache");

	   print $contents;

	   exit();
	 }


	
	/**
	 * Sends the actual media file
	 * and possibly resamples it.
	 * 
	 * 
	 * @author Ben Dodson
	 * @version 11/11/04
	 * @since 11/11/04
	 */	
	function sendMedia($path, $name, $resample=false, $download = false) {
		// Let's get the extension from the file
		$extArr = explode(".",$path);
		$ext = $extArr[count($extArr)-1];
		
		// Now let's fix up the name
		if (substr($name,0-strlen($ext)-1) != "." . $ext) {
		  $name .= "." . $ext;
		}

		if ($resample != "") {
		   $ext = false;
		}	

		// TODO: resample.
		// probably make a different streamFile (streamResampled)
		streamFile($path,$name,false,$resample,$download, true, $ext);
	}
	
/** 
 * Sends the ID3 image
 *
 * @author Ben Dodson
 * @version 7/20/05
 * @since 7/20/05
 **/
function sendID3Image($path,$name,$id3) {
  header("Content-length: ".(string)(strlen($id3)));
  header("Content-Disposition: inline; filename=\"".$name."\"");
  header("Expires: ".gmdate("D, d M Y H:i:s", mktime(date("H")+2, date("i"), date("s"), date("m"), date("d"), date("Y")))." GMT");
  header("Last-Modified: ".gmdate("D, d M Y H:i:s", filemtime($path))." GMT");
  header("Cache-Control: no-cache, must-revalidate");
  header("Pragma: no-cache");
  print($id3);
  return true;
  
}



	/**
	 * Actually sends the data in the specified file.
	 * 
	 * 
	 * @author Ben Dodson, PHP.net
	 * @version 11/11/04
	 * @since 11/11/04
	 */	
	function streamFile($path,$name,$limit=false,$resample="",$download = false, $contentTypeFor = false) {
		global $always_resample, $allow_resample, $always_resample_rate, $jzUSER;
		

		// Let's ignore if they abort, that way we'll know when the track stops...
		ignore_user_abort(TRUE);	
		
		$jzSERVICES = new jzServices();
		$jzSERVICES->loadStandardServices();

		$status = false;
		
		if ($limit === false)
			$speed_limit = 1*1024; // from system.php?
		else
			$speed_limit = $limit;
		// limit is passed as a param because we may want to limit it for downloads
		// but not for streaming / image viewing.
		// Also, we may want to write a different function for resampling,
		// but I don't know yet.
		
		// IF NO SPEED LIMIT:
		// the 'speed_limit' from above is the amount
		// of buffer used while sending the file.
		// but with no speed limit, there is no 'sleep' issued.
		// this makes seeking in a file much faster.
		
		// Let's get the extension of the real file
		$extArr = explode(".",$path);
		$ext = $extArr[count($extArr)-1];
		
		if (!is_file($path) || connection_status() != 0) return (false); 
		
		$meta = $jzSERVICES->getTagData($path);
		$do_resample = false;
		

		if (!isNothing($resample)) {
		  $do_resample = true;
		}

		if (($allow_resample == "true") && stristr($always_resample,$ext)) {
		  $do_resample = true;
		}
		


		if ($meta['type'] == "mp3") {
		  if (!isNothing($resample) && $resample >= $meta['bitrate']) {
		    $do_resample = false;
		  }
		}
		if ($download) {
		  $do_resample = false;
		}
		// Are they resampling or transcoding?
		if ($do_resample){
			// Ok, if resampling isn't set let's go with the default
			if ($resample == ""){
				$resample = $always_resample_rate;
			}
			
			// Now let's load up the resampling service
			$jzSERVICES = new jzServices();
			$jzSERVICES->loadService("resample","resample");
			$jzSERVICES->resampleFile($path,$name,$resample);
			
			// Now let's unset what they are playing
			$be = new jzBackend();
			$be->unsetPlaying($_GET['jz_user'],$_GET['sid']);
			
			return;
		}
		// Now we need to know if this is an ID3 image or not
		// First let's get their limit
		$limit = "7";

		
		$size = filesize($path);
		
		$range = getContentRange($size);
		if ($range !== false) {
			$range_from = $range[0];
			$range_to = $range[1];
		} else {
			$range_from = 0;
			$range_to = $size-1;
		}

		$ps3 = false;
		$allheaders = getallheaders();
		if (isset($allheaders['User-Agent']) && $allheaders['User-Agent'] == "PLAYSTATION 3") {
		  $ps3 = true;
		}

		if ($ps3) {
  		  // ps3 is picky and bizarre.
		  if ($range_from > $size) {
		    // This happens if the ps3 thinks the file
		    // is larger than it is, and sending a
		    
		    // This is supposed to be a read of the id3v1 tag at
		    // the end of a file (128 bytes), or the lyrics tag
		    // (138 bytes)
		    $requested = $range_to - $range_from + 1;
		    $range_from = $size - $requested;
		    $range_to = $size - 1;
		    header("HTTP/1.1 206 Partial content");
		  } else if ($range_from == 0 && $size == $range_to + 1) {
		    header("HTTP/1.1 200 OK");
		  } else {
  		    header("HTTP/1.1 206 Partial content");
		    header("CONTENT-RANGE: bytes ${range_from}-${range_to}/${size}");
		  }

		  header("transferMode.dlna.org: Streaming");
		  header("contentFeatures.dlna.org: DLNA.ORG_OP=01;DLNA.ORG_CI=0;DLNA.ORG_FLAGS=017000 00000000000000000000000000");
		  header("Accept-Ranges: bytes");
		  header("Connection: keep-alive");
		  header("Content-Length: " . ($size - $range_from));
		  
		} else if ($range === false) {
		  // Content length has already been sent
		  header("Content-Length: ".(string)$size);
		} else {
			header("HTTP/1.1 206 Partial Content");
			header("Accept-Range: bytes");
			header("Content-Length: " . ($size - $range_from));
			header("Content-Range: bytes $range_from" . "-" . ($range_to) . "/$size");
		}

		if ($contentTypeFor !== false) {
		  sendContentType($contentTypeFor);
		}

		if (!$ps3) {
		  header("Content-Disposition: inline; filename=\"".$name."\"");
		  header("Expires: ".gmdate("D, d M Y H:i:s", mktime(date("H")+2, date("i"), date("s"), date("m"), date("d"), date("Y")))." GMT");
		  header("Last-Modified: ".gmdate("D, d M Y H:i:s", filemtime($path))." GMT");
		  header("Cache-Control: no-cache, must-revalidate");
		  header("Pragma: no-cache");
		}

		if ($file = fopen($path, 'rb')) {
		  @set_time_limit(0);
		  fseek($file, $range_from);				
		  while(!feof($file) and (connection_status()==0) and ($cur_pos = ftell($file)) < $range_to+1) {
		  	print(fread($file, min(1024*$speed_limit, $range_to + 1 - $cur_pos)));
		    flush();
		    if ($limit !== false) {
		    	sleep(1);
		    }
		  }
		 
		  $status = (connection_status()==0);
		  fclose($file);
		  @set_time_limit(30);
		}
		
		// Now let's unset what they are playing
		$be = new jzBackend();
		$be->unsetPlaying($_GET['jz_user'],$_GET['sid']);
		
		return($status);
	}

	
	/**
	 * Converts an associative array to a link.
	 * Function can take 2 arrays and treats them both the same.
	 * Useful if you have a set of variables that you use a lot
	 * and another set you use only once or twice.
	 * 
	 * This function also remembers things like GET-based frontend/theme settings.
	 *
	 * @author Ben Dodson
	 * @version 11/6/04
	 * @since 11/5/04
	 */
	function urlize($arr1 = array(), $arr2 = array()) {
	  global $this_page, $root_dir, $link_root, $include_path, $ssl_stream, $secure_urls,$jzUSER;
	  
	  $this_page = setThisPage();
	  $arr = $arr1 + $arr2;
	  
	  if (!isset($arr['action'])) { 
	    $action="";
	  } else {
	    $action = $arr['action'];
	  }
	   
	  if (isset($arr['jz_path']) && $arr['jz_path'] == "") {
	    unset($arr['jz_path']);
	  }
 
	  if ($action != "play" && $action != "playlist") {
		  if (isset($_GET['frontend']) && !isset($arr['frontend'])) {
		    $arr['frontend'] = $_GET['frontend'];
		  } else if (isset($_POST['frontend']) && !isset($arr['frontend'])) {
		    $arr['frontend'] = $_POST['frontend'];
		  }
		  
		  if (isset($_GET['theme']) && $_GET['theme'] != '' && !isset($arr['theme'])) {
		    $arr['theme'] = $_GET['theme'];
		  } else if (isset($_POST['theme']) && $_POST['theme'] != '' && !isset($arr['theme'])) {
		    $arr['theme'] = $_POST['theme'];
		  }
	  }
	  
	  switch ($action) {
	  case "play":
	    $link = "";
	    if ($ssl_stream == "true") {
	      $link .= "https://";
	    } else {
	      $link .= "http://";
	    }
	    $link .=  $_SERVER['HTTP_HOST'];
	    if ($_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443 && (strpos($link,":") === false)) {
	      $link .= ":" . $_SERVER['SERVER_PORT'];
	    }
	    $link = str_replace(":443","",$link);
	    $link .= $root_dir . "/mediabroadcast.php?";
	    $ENC_FUNC = "jz_track_encode";
	    // fairly gross hack for non-mp3 files:
	    if (isset($arr['ext'])) {
	      $extension = $arr['ext'];
	      unset($arr['ext']);
	    } else {
	      $extension = false;
	    }
	    break;
	  case "image":
	    //case "download":
	    $link = "";
	    if ($_SERVER['SERVER_PORT'] == 443) {
	      $link .= "https://";
	    } else {
	      $link .= "http://";
	    }
	    $link .=  $_SERVER['HTTP_HOST'];
	    if ($_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443 && (strpos($link,":") === false)) {
	      $link .= ":" . $_SERVER['SERVER_PORT'];
	    }
	    $link = str_replace(":443","",$link);
	    $link .= $root_dir . "/mediabroadcast.php?image=tr&";
	    $ENC_FUNC = "jz_encode";
	    // fairly gross hack for non-mp3 files:
	    if (isset($arr['ext'])) {
	      $extension = $arr['ext'];
	      unset($arr['ext']);
	    } else {
	      $extension = false;
	    }
	    break;
	  case "popup":
	    $link = $root_dir . "/popup.php?";
	    $ENC_FUNC = "jz_encode";
	    $extension = false;
	    break;
	  default:
	    $link = $this_page; // setThisPage handles CMS stuff and adds & or ?.
	    $ENC_FUNC = "jz_encode";
	    $extension = false;
	  }
	  if ($action == "playlist") {
	  	$extension = $jzUSER->getSetting('playlist_type');
	  }
	  
	  //$jz_secure = "true"; // for now.
	  $vars="";
	  if ($secure_urls == "true" && !url_full_exception($arr)) {
			foreach ($arr as $key => $val) {
		  	// if jz_secure, jz_encode our keys and vars.
			  if (!url_key_exception($key))
					$vars .= "&" . urlencode($ENC_FUNC($key)) . "=" . urlencode($ENC_FUNC($val));
			  else
					$vars .= "&" . urlencode($key) . "=" . urlencode($val);
			}
	  } else {
			foreach ($arr as $key => $val) {
		  	$vars .= "&" . urlencode($key) . "=" . urlencode($val);
			}
	  }
	
	  $link = $link . substr($vars,1);
	
	  if (!isNothing($extension)) {
			$link .= "&ext." . $extension;
	  } else {
	  	$link .= "&ext.html";
	  }

	  return $link;
	}
	
	/**
	 * Gets the URL root from a URLized string.
	 * 
	 * @author Ben Dodson
	 * @since 7/16/06
	 * @version 7/16/06
	 */
	 function getURLRoot($url) {
	 	return substr($url, 0, strpos($url,'?'));
	 }
	
	/**
	 * Gets the URL root from a URLized string.
	 * 
	 * @author Ben Dodson
	 * @since 7/16/06
	 * @version 7/16/06
	 */
	function getURLVars($url) {
		$url = substr($url, strpos($url,'?')+1);
	
		$url = explode("&",$url);
	    $url2 = array();
	    foreach ($url as $var){
	    	$url2[substr($var,0,strpos($var,'='))] =
	        substr($var,strpos($var,'=')+1);
	    }
	
	
		return $url2;
	}

	
	/**
	 * Inverse of the above.
	 *
	 * @author Ben Dodson
	 * @version 11/11/04
	 * @since 11/11/04
	 */
	function unurlize($arr) {
		global $secure_urls;
		
		$GET = array();
	
		if (false !== stristr($_SERVER['PHP_SELF'],"mediabroadcast.php")) {
		  if (isset($arr['image'])) {
				$DEC_FUNC = "jz_decode";
		  } else {
		    $DEC_FUNC = "jz_track_decode";
		  }
		} else {
		  $DEC_FUNC = "jz_decode";
		}
		//$jz_secure = "true";
		if ($secure_urls == "true" && !url_full_exception($arr)) {
			foreach ($arr as $key => $val) {
				// if jz_secure, jz_encode our keys and vars.
				if (!url_key_exception($key) && !is_array($key)) {
					$GET[$DEC_FUNC($key)] = $DEC_FUNC(stripSlashes($val));
				} else if (!is_array($key)) {
					$GET[$key] = stripSlashes($val);
				} else {
				  $GET[$key] = $val;
				}
			}
		} else {
			foreach ($arr as $key => $val) {
			  if (!is_array($key)) {
				$GET[$key] = stripSlashes($val);
			  } else {
				$GET[$key] = $val;
			  }
			}
		}
		return $GET;
	}
	/**
	 * Same as above for POST variables.
	 *
	 * @author Ben Dodson
	 * @version 12/16/04
	 * @ since 12/16/04
	 */
	function unpostize($arr) {
	  $POST = array();
	  if (url_full_exception($arr)) {
		foreach($arr as $key => $val) {
		  $POST[$key] = stripSlashes($val);
		}
	  }
	  else {
		foreach ($arr as $key => $val) {
		  if (is_array($val)) {
		$arr1 = array();
		for ($i = 0; $i < sizeof($val); $i++) {
		  $arr1[] = stripSlashes(jz_decode($val[$i]));
		}
		$POST[$key] = $arr1;
		  } else if (post_key_exception($key)) {
		$POST[$key] = stripSlashes($val);
		  } else {
		$POST[jz_decode($key)] = jz_decode(stripSlashes($val));
		  }
		}
	  }
	
	  return $POST;
	}
	
	
	/**
	 * Checks to see if a key indicates our entire string should not be scrambled.
	 * 
	 * @author Ben Dodson
	 * @version 11/11/04
	 * @since 11/11/04
	 */
	function url_full_exception($arr) {

	  foreach ($arr as $key => $val) {
	    switch ($key) {
	      // if we see doSearch, don't unscramble/scramble since we
	      // came from searchbar
	    case "doSearch":
	      if (isset($_REQUEST['action']) && $_REQUEST['action'] != '' ) {
		if ($_REQUEST['action'] != "search") {
		  die("Not allowed.");
		}
	      }
	      return true;
	      break;
	    case "update_settings":
	      /* This will break if you try to update_settings
               * outside of a popup. 
	       */
	      if (isset($_REQUEST['action'])) {
		if ($_REQUEST['action'] != "popup") {
		  die("Not allowed.");
		}
	      }
	      /* Just so you know.
	       */
	      return true;
	      break;
	    }
	  }
	  
	  return false;
	}
	
	/**
	 * Checks to see if our key/val string should be scrambled.
	 * Things like text inputs are not scrambled.
	 * 
	 * @author Ben Dodson
	 * @version 11/11/04
	 * @since 11/11/04
	 */
	function url_key_exception($key) {
          global $jzSERVICES;

          $a = $jzSERVICES->cmsGETVars();
          if (isset($a[$key])) return true;

	  switch ($key) {
	  case "query":
	  case "search_query":
	  case "Artist": // decoy
	  case "Track": // decoy
	  case "Title": // decoy
	  case "op":
	  case "name":
	  case "frame":
	  case "jza":
	  case "view":
	  case "style":
	  case "user":
	  case "pass":
	  case "playlistname":
		//case "file":
		return true;
	  }
	  return false;
	}
	
	/** Same as above, but for POST variables.
	 * 
	 * @author Ben Dodson
	 * @version 12/16/04
	 * @since 12/16/04
	 */
	function post_key_exception($key) {
	
		// Let's account for some partial matches
		if (stristr($key,"plTrackPos-") 
			or stristr($key,"plTrackDel-")
			or stristr($key,"edit_")
			){
			return true;
		}
	
		switch ($key) {
				case "update_postsettings":
			case "jz_list":
			case "query":
			case "search_query":
			case "field1":
			case "field2":
			case "field3":
			case "field4":
			case "field5":
			case "remember":
			case "siteNewsData":
			case "jbvol":
			case "jbplaywhere":
			case "jbjumpto":
			case "addplat":
			case "jz_playlist":
			case "playlistname":
			case "updateTags":
			case "reGenre":
			case "reArtist":
			case "reAlbum":
			case "reTrack":
			case "reNumber":
			case "plType":
			case "shareWithUser":
			case "updatePlaylist":
			case "deletePlaylist":
			case "plToEdit":
		        case "randomize":
				return true;
			default:
				return false;
		}
	}
	
	
	/**
	 * Scrambles a string
	 * 
	 * @author Ben Dodson
	 * @version 11/6/04
	 * @since 11/6/04
	 */
	function jz_encode($string, $key = false) {
		global $secure_urls,$security_key;
		
		if ($secure_urls == "false"){
			return $string;
		}
	  // Complex scheme.
	  if ($key === false) {
	    $key = $security_key;
	    if (strlen($key) < 10) {
	      $key = "secrets are fun to keep (so let's keep them)";
	    }
	  }
	  $result = '';
	  for($i=1; $i<=strlen($string); $i++) {
			$char = substr($string, $i-1, 1);
			$keychar = substr($key, ($i % strlen($key))-1, 1);
			$char = chr(ord($char)+ord($keychar));
			$result .= $char;
	  }
	  return str_replace("+","JZPLUS",base64_encode($result)); 
	}
	
	/**
	 * Unscrambles a string.
	 *
	 * @author Ben Dodson
	 * @version 11/6/04
	 * @since 11/5/04
	 */
	function jz_decode($string, $key = false) {
		global $secure_urls,$security_key;
		
		if ($secure_urls == "false"){
			return $string;
		}
		
	  // Complex scheme.
	  $string = base64_decode(str_replace("JZPLUS","+",$string));
	  if ($key === false) {
	    $key = $security_key;
	    if (strlen($key) < 10) {
	      $key = "secrets are fun to keep (so let's keep them)";
	    }
	  }
	  $result = '';
	  for ($i=1; $i <= strlen($string); $i++) {
			$char = substr($string,$i-1,1);
			$keychar = substr($key,($i % strlen($key))-1,1);
			$char = chr(ord($char)-ord($keychar));
			$result .= $char;
	  }
		
	  return $result;
	}
	
	
	
	
	/*
	 * Encodes the URL for a track (since players break easily)
	 * 
	 * @author Ben Dodson
	 * @since 2/2/05
	 * @version 2/2/05
	 *
	 **/
	function jz_track_encode($string) {
	  $ret = "";
	  return strrev($string);
	  for ($i = 0; $i < strlen($string); $i++) {
		$ret .= chr(ord($string[$i])+4);
	  }
	
	  return strrev($ret);
	}
	
	/*
	 * Decodes the URL for a track (since players break easily)
	 * 
	 * @author Ben Dodson
	 * @since 2/2/05
	 * @version 2/2/05
	 *
	 **/
	function jz_track_decode($string) {
	  $ret = "";
	  return strrev($string);
	  $string = strrev($string);
	  for ($i = 0; $i < strlen($string); $i++) {
		$ret .= chr(ord($string[$i])-4);
	  }
	  return $ret;
	}

        function getTrackIdFromURL($url) {
	  global $secure_urls;

	  if ($secure_urls == "true") {
	    $decoded_label = jz_track_encode('jz_path');
	  } else {
	    $decoded_label = 'jz_path';
	  }

	  $args = substr($url,strpos($url,'?')+1);
	  $args = explode('&',$args);
	  foreach ($args as $arg) {
	    $parts = explode('=',$arg);
	    if ($parts[0] == $decoded_label) {
	      if ($secure_urls == "true") {
		return jz_track_decode($parts[1]);
	      } else {
		return $parts[1];
	      }
	    }
	  }
	  return false;
	}
	
	/**
	 * Scrambles a string for the cookie
	 * 
	 * @author Ben Dodson
	 * @version 1/16/05
	 * @since 11/23/04
	 */
	function jz_cookie_encode($string) {
	  return jz_encode($string, "this is a secret key that will be moved and improved.");
	}
	
	/**
	 * Unscrambles a stringf or the cookie
	 *
	 * @author Ben Dodson
	 * @version 1/16/05
	 * @since 11/23/04
	 */
	function jz_cookie_decode($string) {
	  return jz_decode($string, "this is a secret key that will be moved and improved.");
	}
	 
	function setThisPage() {
	  global $link_root, $cms_type, $cms_mode, $fe;	

	  if (defined('JZ_URL_OVERRIDE')) {
	    $link = JZ_URL_OVERRIDE . '?';
	  } else if ($cms_mode === false || $cms_mode == "false" || $link_root == "") {
            //$a = explode("/",$_SERVER['PHP_SELF']);
            //$link = $a[sizeof($a)-1] . '?';
	    $link = $_SERVER['PHP_SELF'];

	    $link = substr($link,0,strrpos($link,'/')).'/index.php?';
	    $link = str_replace("popup.php","index.php",$link);
	  }
	  else {
	  //  
		$link = $link_root;
	  }
	  
	  // check for things that need to be added:
	  $this_page = $link;

	  // Add additional settings to our URL:
	  if (isset($_GET['set_frontend'])) {
	    $this_page .= urlencode(jz_encode("frontend")) . "=" . urlencode(jz_encode($_GET['set_frontend'])) . "&";
	    $_GET['frontend'] = $_GET['set_frontend'];
	  } else if (isset($_POST['set_frontend'])) {
	    $this_page .= urlencode(jz_encode("frontend")) . "=" . urlencode(jz_encode($_POST['set_frontend'])) . "&";
	    $_GET['frontend'] = $_POST['set_frontend'];
	  } else if (isset($_GET['view'])) {
	    $this_page .= urlencode(jz_encode("frontend")) . "=" . urlencode(jz_encode($_GET['view'])) . "&";
	    $_GET['frontend'] = $_GET['view'];
	  } else if (isset($_GET['frontend'])) {
	    $this_page .= urlencode(jz_encode("frontend")) . "=" . urlencode(jz_encode($_GET['frontend'])) . "&";
	  }

          if (isset($_GET['set_theme'])) {
	    $this_page .= urlencode(jz_encode("theme")) . "=" . urlencode(jz_encode($_GET['set_theme'])) . "&";
	    $_GET['theme'] = $_GET['set_theme'];
	  } else if (isset($_POST['set_theme'])) {
	    $this_page .= urlencode(jz_encode("theme")) . "=" . urlencode(jz_encode($_POST['set_theme'])) . "&";
	    $_GET['theme'] = $_POST['set_theme'];
	  } else if (isset($_GET['style'])) {
	    $this_page .= urlencode(jz_encode("theme")) . "=" . urlencode(jz_encode($_GET['style'])) . "&";
	    $_GET['theme'] = $_GET['style'];
	  } else if (isset($_GET['theme'])) {
	    $this_page .= urlencode(jz_encode("theme")) . "=" . urlencode(jz_encode($_GET['theme'])) . "&";
	  }

	  if (isset($_GET['set_language'])) {
	    $this_page .= urlencode(jz_encode("language")) . "=" . urlencode(jz_encode($_GET['set_language'])) . "&";
	    $_GET['language'] = $_GET['set_language'];
	  } else if (isset($_POST['set_language'])) {
	    $this_page .= urlencode(jz_encode("language")) . "=" . urlencode(jz_encode($_POST['set_language'])) . "&";
	    $_GET['language'] = $_POST['set_language'];
	  } else if (isset($_GET['language'])) {
	    $this_page .= urlencode(jz_encode("language")) . "=" . urlencode(jz_encode($_GET['language'])) . "&";
	  }

	  
	  return $this_page;
	}

	
	/**
	 * Replace ob_flush()
	 *
	 * @category    PHP
	 * @package     PHP_Compat
	 * @link        http://php.net/function.ob_flush
	 * @author      Aidan Lister <aidan@php.net>
	 * @author      Thiemo M�ttig (http://maettig.com/)
	 * @version     $Revision$
	 * @since       PHP 4.2.0
	 * @require     PHP 4.0.1 (trigger_error)
	
	 */
	if (!function_exists('ob_flush'))
	{
		function ob_flush()
		{
			if (@ob_end_flush()) {
				return ob_start();
			}
	
			trigger_error("ob_flush() Failed to flush buffer. No buffer to flush.", E_USER_NOTICE);
	
			return false;
		}
	}
	
	/**
	 * Replace file_get_contents()
	 *
	 * @category    PHP
	 * @package     PHP_Compat
	 * @link        http://php.net/function.file_get_contents
	 * @author      Aidan Lister <aidan@php.net>
	 * @version     $Revision$
	 * @internal    resource_context is not supported
	 * @since       PHP 5
	 * @require     PHP 4.0.1 (trigger_error)
	 */
	if (!function_exists('file_get_contents'))
	{
		function file_get_contents($filename, $incpath = false, $resource_context = null)
		{
			if (false === $fh = fopen($filename, 'rb', $incpath)) {
				trigger_error('file_get_contents() failed to open stream: No such file or directory', E_USER_WARNING);
				return false;
			}
	
			clearstatcache();
			if ($fsize = filesize($filename)) {
				$data = fread($fh, $fsize);
			} else {
				while (!feof($fh)) {
					$data .= fread($fh, 8192);
				}
			}
	
			fclose($fh);
			return $data;
		}
	}
	
	// microtime for PHP 4
	function microtime_float()
	{
	  list($usec, $sec) = explode(" ", microtime());
	  return ((float)$usec + (float)$sec);
	} 
	
/**
 * Returns a list of available languages
 *
 * @author Ben Dodson, Ross Carlson
 * @since 11/5/05
 *
 */
function getLanguageList() {
  global $include_path;
  $lang_dir = $include_path. "lang";
  $retArray = readDirInfo($lang_dir,"file");
  sort($retArray);
  $languages = array();
  for ($c=0; $c < count($retArray); $c++){	
    $entry = $retArray[$c];
    // Let's make sure this isn't the local directory we're looking at 
    if ($entry == "." || $entry == ".." || $entry == "master.php") { continue;}
    if (!stristr($entry,"-setup") and !stristr($entry,".html")){
      if (strrpos($entry,'-') !== false) {
	$languages[substr($entry,0,strrpos($entry,'-'))] = true;
      } else {
	$languages[$entry] = true;
      }
    }
  }
  return array_keys($languages);
}

	/**
	* Translates a word into a native language
	* 
	* 
	* @author Ross Carlson
	* @author Ben Dodson
	* @version 3.22.05
	* @since 3.22.05
	* @param string $word The word to translate
	* @param $term1, $term2, ....: replace the key %s in $word. 
	*/
	function word($word){
		global $words, $jz_lang_file, $include_path;
		
		// Let's hash that word
		$hash = md5($word);
		
		// Now let's make sure there is a translation for this
		if (isset($words[$hash])){
			$ret = $words[$hash];	
		} else {
			// Ok, it didn't so let's log it and return what they put it
			$fileName = $include_path. "temp/jinzora-words-". $jz_lang_file. ".log";		
			if (!is_file($fileName)){touch($fileName);}
			$data = file_get_contents($fileName);
			if (!stristr($data,$word)){
				$handle = @fopen($fileName, "a");
				$data = "$". "words['". $hash. "'] = ". '"'. $word. '";'. "\n";
				@fwrite($handle,$data);				
				@fclose($handle);
			}
			
			// Now let's set up for returning:
			$ret = $word;
		}
		// Replace %s as needed:
		$i = 1;
		while (($index = strpos($ret,'%s')) !== false) {
		  $ret = substr($ret,0,$index) . func_get_arg($i++) . substr($ret,$index+2);
		}
		return $ret;
	}
	
	
	
	// This function will see if there is a thumbnail for the corresponding item
	// Added 3.23.04 by Ross Carlson
	// It returns false or the name of the file
	function searchThumbnail($searchFile){
		global $ext_graphic, $web_root;
		
		$typeArray = explode("|",$ext_graphic);		
		$thumb_file = "";			
		$fileExt = returnFileExt($searchFile);		
		for ($e=0; $e < count($typeArray); $e++){
			$thumbFileName = str_replace(".".$fileExt,".thumb.". $typeArray[$e],$searchFile);
			if (is_file($thumbFileName)){
				$thumb_file =  str_replace("%2F","/",rawurlencode(str_replace($web_root,"",$thumbFileName)));
			}
		}
		
		// Now let's return it
		if ($thumb_file <> ""){
			return $thumb_file;
		} else {
			return false;
		}
	}
	
	/**
	* Display the opening tag for a table
	* 
	* @author Ross Carlson
	* @version 04/28/04
	* @since 04/28/04
	* @param integer $width Width of the table in percent
	* @param integer $cellpadding cellpadding for the table
	* @param string $class the style sheet class for the table
	*/
	function jzTableOpen($width = "100", $cellpadding = "5", $class = "jz_track_table", $widthType = "%"){
		echo '<table class="'. $class. '" width="'. $width. $widthType. '" cellpadding="'. $cellpadding. '" cellspacing="0" border="0">'. "\n";
	}
	
	/**
	* Display the closing tag for a table
	* 
	* @author Ross Carlson
	* @version 04/28/04
	* @since 04/28/04
	*/
	function jzTableClose(){
		echo '</table>'. "\n";
	}
	
	/**
	* open a Table Row
	* 
	* @author Ross Carlson
	* @version 04/28/04
	* @since 04/28/04
	* @param string $class the style sheet class for the table
	*/
	function jzTROpen($class = ""){
		echo '  <tr class="'. $class. '">'. "\n";
	}
	
	/**
	* close a Table Row
	* 
	* @author Ross Carlson
	* @version 04/28/04
	* @since 04/28/04
	*/
	function jzTRClose(){
		echo '  </tr>'. "\n";
	}
	
	/**
	* Display the opening tag for a table detail
	* 
	* @author Ross Carlson
	* @version 04/28/04
	* @since 04/28/04
	* @param integer $width Width of the table in percent
	* @param string $align alignment for the cell
	* @param string $valign verticle alignment for the cell
	* @param string $class the style sheet class for the table
	* @param integer $colspan how many colums should this cell span
	*/
	function jzTDOpen($width = "100", $align = "left", $valign = "top", $class = "", $colspan = "", $widthType = "%"){
		echo '    <td width="'. $width. $widthType. '" align="'. $align. '" valign="'. $valign. '" class="'. $class. '" ';
		if ($colspan <> "0"){
			echo 'colspan="'. $colspan. '"';
		}
		echo '>'. "\n";
	}
	
	/**
	* Display the opening tag for a table detail
	* 
	* @author Ross Carlson
	* @version 04/28/04
	* @since 04/28/04
	*/
	function jzTDClose(){
		echo '    </td>'. "\n";
	}
	
	/**
	* Display an A HREF tag
	* 
	* @author Ross Carlson
	* @version 04/28/04
	* @since 04/28/04
	*/
	function jzHREF($href, $target = "", $class = "", $onclick = "", $item, $title = ""){
		$retVar = '<a ';
		if ($title <> ""){ $retVar .= 'title="'. $title. '" '; }
		if ($class <> ""){ $retVar .= 'class="'. $class. '" '; }
		if ($target <> ""){ $retVar .= 'target="'. $target. '" '; }
		if ($onclick <> ""){ $retVar .= 'onclick="'. $onclick. '" '; }
		$retVar .= 'href="'. $href. '" >'. $item. '</a>';
		
		// Now let's display the link
		echo $retVar;
	}
	
	
	/**
	* returns the truncated name of an item
	* 
	* @author Ross Carlson
	* @version 05/03/04
	* @since 05/03/04
	* @param string $item the item to truncate
	* @param string $length how long should it be?
	*/
	function returnItemShortName($item,$length){
		if (strlen($item) > $length + 3){
			return substr($item,0,$length). "...";
		} else {
			return $item;
		}
	}	
	
	/**
	 * Hightlights (bolds) part of a string to emphasis it
	 * 
	 * @author Ross Carlson (from www.php.net)
	 * @version 01/14/05
	 * @since 01/14/05
	 * @param string $x The Haystack
	 * @param string $var The needle
	 * @return string guessed mime type for thie filename
	 */
	function highlight($x,$var) {//$x is the string, $var is the text to be highlighted
	   if ($var != "") {
		   $xtemp = "";
		   $i=0;
		   while($i<strlen($x)){
			   if((($i + strlen($var)) <= strlen($x)) && (strcasecmp($var, substr($x, $i, strlen($var))) == 0)) {
						//this version bolds the text. you can replace the html tags with whatever you like.
					   $xtemp .= "<b>" . substr($x, $i , strlen($var)) . "</b>";
					   $i += strlen($var);
			   }
			   else {
				   $xtemp .= $x{$i};
				   $i++;
			   }
		   }
		   $x = $xtemp;
	   }
	   return $x;
	} 
	
	/**
	 * for php < 4.3.0
	 * 
	 * @author Laurent Perrin 
	 * @version 02/06/04
	 * @since 02/06/04
	 * @param string $filename file name
	 * @return string guessed mime type for thie filename
	 */
	if (!function_exists("mime_content_type")) {
		function mime_content_type($filename) {
			switch(strrchr($filename,'.')){
				case '.mp3':
				case '.mp2':
				case '.mp1': 
					return 'audio/mpeg';
				case '.wma':
					return 'audio/wma';
				case '.wav':
					return 'audio/x-wav';
				case '.avi':
					return 'video/x-msvideo';
				case '.qt':
				case '.mov':
					return 'video/quicktime';
				case '.mpe':
				case '.mpg':
				case '.mpeg': 
					return 'video/mpeg';;
			} // switch()
			return '';
		}
	}
	
	/**
	 * for php < 4.3.0
	 * 
	 * @author Laurent Perrin 
	 * @version 02/15/04
	 * @since 02/06/04
	 * @param string $filename filename
	 * @param integer $use_include_path use include path
	 * @return string file contents
	 */
	if (!function_exists("file_get_contents")) {
		function file_get_contents($filename, $use_include_path = 0) {
			$data = ''; // just to be safe. Dunno, if this is really needed
			$file = @fopen($filename, "rb", $use_include_path);
			if ($file) {
				$data = fread($file, filesize($filename));
				fclose($file);
			}
			return $data;
		}
	}
	
	/**
	* Updates the track counter for something when it's played
	* 
	* @author Ross Carlson
	* @version 07/26/04
	* @version 07/26/04
	* @param string $data the file name to process
	* @return string the file extension (without the .)
	*/
	function returnFileExt($data){
		$fileInfo = pathinfo($data);
		if (isset($fileInfo["extension"])){
			return $fileInfo["extension"];
		} else {
			return "";
		}
	}
	
	/**
	* Handles array sorting for us
	* 
	* @author Ross Carlson
	*/
	function track_cmp($a, $b){
	   if ($a == $b) {
		   return 0;
	   }
	   return ($a > $b) ? -1 : 1;
	}
	
	
	/**
	* Returns the difference between 2 microtime stamps
	* 
	* @author Ross Carlson
	* @version 06/17/04
	* @since 06/17/04
	* @param string $value What needs to be added to the list
	*/
	function microtime_diff($a, $b) {
	   list($a_dec, $a_sec) = explode(" ", $a);
	   list($b_dec, $b_sec) = explode(" ", $b);
	   return $b_sec - $a_sec + $b_dec - $a_dec;
	}
	
	
	
	/**
	* Sets a session variable with the URL of the current page
	* 
	* @author Ross Carlson
	* @version 05/04/04
	* @since 05/04/04
	* @returns Session variable $_SESSION['prev_page']
	*/
	function setPreviousPage(){		
		// Now let's set the session variable for later
		$_SESSION['prev_page'] = @$_SERVER['REQUEST_URI'];
		// Let's make sure it got set right and if not fix it
		if ($_SE…