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Help with file download


playaz

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Hi guys,

 

I have a small script that does a 'force download' of a pdf file - the problem is while it downloads the correct file, when I attempt to open the file once download it is corrupted - I get the following error in Adobe Acrobat:

"There was an error opening this document. The file is damaged and could not be repaired."

 

	if ($_POST && $_REQUEST['document_id'] != '') {

$oDocuments		= new Documentation;
$arrDocument 		= $oDocuments->getFrontItem($_REQUEST['document_id']);	

// Define the path to file
	$file = $arrDocument['filename'];  // eg 'application.pdf'

	if(!file)
	{
	    // File doesn't exist, output error
	    die('file not found');
	}
	else
	{
	    // Set headers
	    header("Cache-Control: public");
	    header("Content-Description: File Transfer");
	    header("Content-Disposition: attachment; filename=$file");
	    header("Content-Type: application/pdf");
	    header("Content-Transfer-Encoding: binary");
	   
	    // Read the file from disk
	    //readfile($file);
	    
	if($fp = fopen($path.$file, "r")) {
		while(!feof($fp)) {
			echo fgets($fp, 4096);
		}
		// close the file
		fclose($fp);		    
	}	
	}
}

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https://forums.phpfreaks.com/topic/57239-help-with-file-download/
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>>>>>>>>>>>>>>>>> case "pdf": $ctype="application/pdf"; break; <<<<<<<<<<<<<<<<

<?php

$filename = $_GET['file'];

// required for IE, otherwise Content-disposition is ignored
if(ini_get('zlib.output_compression'))
  ini_set('zlib.output_compression', 'Off');

// addition by Jorg Weske
$file_extension = strtolower(substr(strrchr($filename,"."),1));

if( $filename == "" ) 
{
  echo "<html><title>eLouai's Download Script</title><body>ERROR: download file NOT SPECIFIED. USE force-download.php?file=filepath</body></html>";
  exit;
} elseif ( ! file_exists( $filename ) ) 
{
  echo "<html><title>eLouai's Download Script</title><body>ERROR: File not found. USE force-download.php?file=filepath</body></html>";
  exit;
};
switch( $file_extension )
{
  case "pdf": $ctype="application/pdf"; break;
  case "exe": $ctype="application/octet-stream"; break;
  case "zip": $ctype="application/zip"; break;
  case "doc": $ctype="application/msword"; break;
  case "xls": $ctype="application/vnd.ms-excel"; break;
  case "ppt": $ctype="application/vnd.ms-powerpoint"; break;
  case "gif": $ctype="image/gif"; break;
  case "png": $ctype="image/png"; break;
  case "jpeg":
  case "jpg": $ctype="image/jpg"; break;
  default: $ctype="application/force-download";
}
header("Pragma: public"); // required
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: private",false); // required for certain browsers 
header("Content-Type: $ctype");
// change, added quotes to allow spaces in filenames, by Rajkumar Singh
header("Content-Disposition: attachment; filename=\"".basename($filename)."\";" );
header("Content-Transfer-Encoding: binary");
header("Content-Length: ".filesize($filename));
readfile("$filename");
exit();

?>

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