Download corrupt.Need help

[vearns]

Hello,

i dont know what is the problem with this coding.

when i try to download file from other server,the file can be download but it is corrupt.

if i use DAP,the download will stuck at 100%.

if i use flashget,the download is complete but the file is corrupt.

 

however,if i download a file from local server,everything went fine.

 

this is my code.

 

hope anyone can help me.

 

thanks.

 

<?php
function DownloadFile($File)
{
    
    $FileName = basename($File);
    $FileExt = strtolower(substr(strrchr($FileName,"."),1));
    
    switch($FileExt)
        {
        case "exe":
                        $ctype = "application/octet-stream";
                        break;
        case "zip":
                        $ctype = "application/zip";
                        break;
        case "mp3":
                        $ctype = "audio/mpeg";
                        break;
        case "mpg":
                        $ctype = "video/mpeg";
                        break;
        case "avi":
                        $ctype = "video/x-msvideo";
                        break;
                case "wmv":
                        $ctype = "video/x-ms-wmv";
                        break;
        default:
                        $ctype="application/force-download";
    }
    
    header("Cache-Control:");
    header("Cache-Control: public");
    
    header("Content-Type: $ctype");
    if (strstr($_SERVER['HTTP_USER_AGENT'], "MSIE"))
        {
        // IE Bug workaround
        $IEFileName = preg_replace('/\./', '%2e', $FileName, substr_count($FileName, '.') - 1);
        header("Content-Disposition: attachment; filename=\"$IEFileName\"");
    }
        else
        {
        header("Content-Disposition: attachment; filename=\"$FileName\"");
    }
    header("Accept-Ranges: bytes");
    
    $FileSize = 4653240;
    // If http_range is sent by browser (or download manager)
    if(isset($_SERVER['HTTP_RANGE']))
        {
        list($a, $Range) = explode("=",$_SERVER['HTTP_RANGE']);
        // If yes, download missing part
        str_replace($Range, "-", $Range);
        $FileSize2 = $FileSize-1;
        $new_length = $FileSize2-$Range;
        header("HTTP/1.1 206 Partial Content");
        header("Content-Length: $new_length");
        header("Content-Range: bytes $Range$FileSize2/$FileSize");
    }
        else
        {
        $FileSize2 = $FileSize-1;
        header("Content-Range: bytes 0-$FileSize2/$FileSize");
        header("Content-Length: ".$FileSize);
    }
    // Open the file
    $FP = fopen("$File","rb");
    // Seek to start of missing part
    fseek($FP,$Range);
    
    while(!feof($FP))
        {
        // Reset time limit so there's no timeout
        set_time_limit(0);
        print(fread($FP,1024*);
        flush();
        ob_flush();
    };

    fclose($FP);
    exit;
}
// How to use it
DownloadFile("http://files.brothersoft.com/internet/download_managers/FlashGet_54668.exe");
?>

[Cep]

Try the obvious, if the file is always corrupt, quite possibly the file IS corrupt full stop. Try replacing the file or using a different file for testing then see what happens.

[vearns]

the file is not corrupt.

when i use this code to download that file,it will corrupt for unknown reason.

thats why i need help here to check the code.

[vearns]

i changed some of the code.

but again,it is not working...arghhhh!!

 

<?php
function resume($file){

function httpStreamSize($file) 
{ 
  $meta_data = stream_get_meta_data($file); 
  foreach($meta_data['wrapper_data'] as $response)  
    if (preg_match('#^Content-Length\s*:\s*(\d+)$#i', $response,$m))  
      return (int)$m[1]; 
  return null; 
}
    
    //Gather relevent info about file
    $len = filesize($file);
    $filename = basename($file);
    $file_extension = strtolower(substr(strrchr($filename,"."),1));
    
    //This will set the Content-Type to the appropriate setting for the file
    switch( $file_extension ) {
        case "exe": $ctype="application/octet-stream"; break;
        case "zip": $ctype="application/zip"; break;
        case "mp3": $ctype="audio/mpeg"; break;
        case "mpg":$ctype="video/mpeg"; break;
        case "avi": $ctype="video/x-msvideo"; break;
        default: $ctype="application/force-download";
    }
    
    //Begin writing headers
    header("Cache-Control:");
    header("Cache-Control: public");
    
    //Use the switch-generated Content-Type
    header("Content-Type: $ctype");
    if (strstr($_SERVER['HTTP_USER_AGENT'], "MSIE")) {
        # workaround for IE filename bug with multiple periods / multiple dots in filename
        # that adds square brackets to filename - eg. setup.abc.exe becomes setup[1].abc.exe
        $iefilename = preg_replace('/\./', '%2e', $filename, substr_count($filename, '.') - 1);
        header("Content-Disposition: attachment; filename=\"$iefilename\"");
    } else {
        header("Content-Disposition: attachment; filename=\"$filename\"");
    }
    header("Accept-Ranges: bytes");
    $fp=fopen("$file","rb");

    $size=httpStreamSize($fp);
fclose($fp);
    //check if http_range is sent by browser (or download manager)
    if(isset($_SERVER['HTTP_RANGE'])) {
        list($a, $range)=explode("=",$_SERVER['HTTP_RANGE']);
        //if yes, download missing part
        str_replace($range, "-", $range);
        $size2=$size-1;
        $new_length=$size2-$range;
        header("HTTP/1.1 206 Partial Content");
        header("Content-Length: $new_length");
        header("Content-Range: bytes $range$size2/$size");
    } else {
        $size2=$size-1;
        header("Content-Range: bytes 0-$size2/$size");
        header("Content-Length: ".$size);
    }
    //open the file
    $fp=fopen("$file","rb");
    //seek to start of missing part
    fseek($fp,$range);
    //start buffered download
    while(!feof($fp)){
        //reset time limit for big files
        set_time_limit(0);
        print(fread($fp,1024*);
        flush();
        ob_flush();
    }
    fclose($fp);
    exit;
}

resume("http://files.brothersoft.com/internet/download_managers/FlashGet_54668.exe");
?>