Télécharger un fichier avec Reprendre / Limitation

php

Dans ce tutoriel, nous allons apprendre a créer un fichier de téléchargement (comme free.fr). Le principe de ce fichier est de ne pas montrer où se situe le fichier et donc de ne pas donner de lien direct. Fichiers crée par AwesomePHP.com.

Voici le fichier source :

function downloadFile($fileLocation,$fileName,$maxSpeed = 100,$doStream = false){
    if (connection_status()!=0) return(false);
    $extension = strtolower(end(explode('.',$fileName)));

    /* Liste des extensions possible */
    $fileTypes['swf'] = 'application/x-shockwave-flash';
    $fileTypes['pdf'] = 'application/pdf';
    $fileTypes['exe'] = 'application/octet-stream';
    $fileTypes['zip'] = 'application/zip';
    $fileTypes['doc'] = 'application/msword';
    $fileTypes['xls'] = 'application/vnd.ms-excel';
    $fileTypes['ppt'] = 'application/vnd.ms-powerpoint';
    $fileTypes['gif'] = 'image/gif';
    $fileTypes['png'] = 'image/png';
    $fileTypes['jpeg'] = 'image/jpg';
    $fileTypes['jpg'] = 'image/jpg';
    $fileTypes['rar'] = 'application/rar';

    $fileTypes['ra'] = 'audio/x-pn-realaudio';
    $fileTypes['ram'] = 'audio/x-pn-realaudio';
    $fileTypes['ogg'] = 'audio/x-pn-realaudio';

    $fileTypes['wav'] = 'video/x-msvideo';
    $fileTypes['wmv'] = 'video/x-msvideo';
    $fileTypes['avi'] = 'video/x-msvideo';
    $fileTypes['asf'] = 'video/x-msvideo';
    $fileTypes['divx'] = 'video/x-msvideo';

    $fileTypes['mp3'] = 'audio/mpeg';
    $fileTypes['mp4'] = 'audio/mpeg';
    $fileTypes['mpeg'] = 'video/mpeg';
    $fileTypes['mpg'] = 'video/mpeg';
    $fileTypes['mpe'] = 'video/mpeg';
    $fileTypes['mov'] = 'video/quicktime';
    $fileTypes['swf'] = 'video/quicktime';
    $fileTypes['3gp'] = 'video/quicktime';
    $fileTypes['m4a'] = 'video/quicktime';
    $fileTypes['aac'] = 'video/quicktime';
    $fileTypes['m3u'] = 'video/quicktime';

    $contentType = $fileTypes[$extension];


    header("Cache-Control: public");
    header("Content-Transfer-Encoding: binary\n");
    header('Content-Type: $contentType');

    $contentDisposition = 'attachment';

    if($doStream == true){
        /* extensions to stream */
        $array_listen = array('mp3','m3u','m4a','mid','ogg','ra','ram','wm', 'wav','wma','aac','3gp','avi','mov','mp4','mpeg','mpg','swf','wmv','divx','asf');       if(in_array($extension,$array_listen)){
            $contentDisposition = 'inline';
        }
    }

    if (strstr($_SERVER['HTTP_USER_AGENT'], "MSIE")) {
        $fileName= preg_replace('/\./', '%2e', $fileName, substr_count($fileName, '.') - 1);
        header("Content-Disposition: $contentDisposition; filename=\"$fileName\"");
    } else {
        header("Content-Disposition: $contentDisposition; filename=\"$fileName\"");
    }

    header("Accept-Ranges: bytes");
    $range = 0;
    $size = filesize($fileLocation);

    if(isset($_SERVER['HTTP_RANGE'])) {
        list($a, $range)=explode("=",$_SERVER['HTTP_RANGE']);
        str_replace($range, "-", $range);
        $size2=$size-1;
        $new_length=$size-$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);
    }

    if ($size == 0 ) { die('Zero byte file! Aborting download');}
    set_magic_quotes_runtime(0);
    $fp=fopen("$fileLocation","rb");

    fseek($fp,$range);

    while(!feof($fp) and (connection_status()==0))
    {
        set_time_limit(0);
        print(fread($fp,1024*$maxSpeed));
        flush();
        ob_flush();
        sleep(1);
    }
    fclose($fp);

    return((connection_status()==0) and !connection_aborted());
}

/* Appel de la fonction*/
downloadFile('fileLocation','fileName.ext',900,false);
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