405 lines
12 KiB
PHP
405 lines
12 KiB
PHP
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<?php
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class VinylDownload {
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const MAXDOWNLOADS = 3;
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const TABLE = 'vinyl-codes';
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public $database, $file, $code;
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public function __construct() {
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@set_time_limit(0);
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ini_set('memory_limit', '512M');
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}
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private function db_connect(){
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$db = new SQLite3( $this->database );
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if (!$db) die ($error);
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return $db;
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}
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public function query_code($code) {
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$db = $this->db_connect();
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$c = SQLite3::escapeString ( $code ) ;
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$q = "SELECT * FROM '" . self::TABLE . "' WHERE code='" . $c . "'" ;
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$result = @$db->query( $q );
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$row = @$result->fetchArray();
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$db->close();
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// row == false when no row was found
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return $row;
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}
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private function increase_count_in_db() {
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$db = @$this->db_connect();
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$db->exec( "UPDATE '" . self::TABLE . "' SET count = count + 1 WHERE code='" . $this->code . "'" );
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$db->close();
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}
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public function reached_max_dl( $count ) {
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$max = false;
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$count += 1;
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if ( $count > self::MAXDOWNLOADS ) $max = true;
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return $max;
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}
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public function gen_response( $c , $f ){
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$this->code = $c;
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$content = "Code ungültig oder abgelaufen.";
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// row == false when no row was found
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if ( $row = $this->query_code($this->code) ) {
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// max count not reached
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if ( false === $this->reached_max_dl( $row['count'] ) ) {
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$content ='
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<div id="1">
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<form method=POST id="dl-trigger" action="https://www.rainervonvielen.de/digital-download"><p>
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<input type="hidden" value="'. $this->code . '" name="c"</input>
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<input type="hidden" value="'. $f . '" name="sel_format"</input>
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<input type="submit" class ="btn middle" value="Start"></input>
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</form>
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</div>
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<script>
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jQuery("#dl-trigger").submit(function(e) {
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jQuery("#1").html( "<p><strong>Download ist gestartet.</strong> Du hast noch <strong>' . ( self::MAXDOWNLOADS - $row['count'] - 1 ) .'</strong> Downloads zur Verfügung bis der Code ungültig wird." );
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});
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</script>
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';
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}
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}
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return $content;
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}
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public function dl_trigger($format) {
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// Start Download
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switch ($format) {
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case 'mp3':
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$file = $this->mp3_file;
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$filename = 'Rainer_von_Vielen-Überall_Chaos_2017-MP3.zip';
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break;
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case 'wav':
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$file = $this->wav_file;
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$filename = 'Rainer_von_Vielen-Überall_Chaos_2017-WAV.zip';
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break;
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}
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$this->downloader( $file, $filename );
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$this->increase_count_in_db();
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}
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private function downloader( $file, $filename ){
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// Force the browser to start the download automatically
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// Variables:
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// $file = real name of actual download file on the server
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// $filename = new name of local download file - this is what the visitor's file will actually be called when he/she saves it
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ob_start();
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$mm_type='application/zip';
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header("Content-Type: ".$mm_type);
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header('Content-Disposition: attachment; filename="'.$filename.'"');
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header("Content-Description: File Transfer");
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header("Content-Length: " .(string)(filesize($file)) );
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header("Cache-Control: public, must-revalidate");
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header("Pragma: public");
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header("Content-Transfer-Encoding: binary\n");
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ob_end_clean();
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readfile($file);
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}
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/*
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* Nicht benoetigt::
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*/
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private function downloader_large_file( $filePath )
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{
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if(!empty($filePath)){
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$fileInfo = pathinfo($filePath);
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$fileName = $fileInfo['basename'];
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$fileExtnesion = $fileInfo['extension'];
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$default_contentType = "application/octet-stream";
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$content_types_list = $this->mimeTypes();
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// to find and use specific content type, check out this IANA page : http://www.iana.org/assignments/media-types/media-types.xhtml
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if (array_key_exists($fileExtnesion, $content_types_list)) {
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$contentType = $content_types_list[$fileExtnesion];
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} else {
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$contentType = $default_contentType;
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}
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if (file_exists($filePath)) {
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$size = filesize($filePath);
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$offset = 0;
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$length = $size;
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//HEADERS FOR PARTIAL DOWNLOAD FACILITY BEGINS
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if ( isset( $_SERVER['HTTP_RANGE'] ) ) {
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preg_match('/bytes=(\d+)-(\d+)?/', $_SERVER['HTTP_RANGE'], $matches);
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$offset = intval($matches[1]);
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$length = intval($matches[2]) - $offset;
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$fhandle = fopen($filePath, 'r');
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fseek($fhandle, $offset); // seek to the requested offset, this is 0 if it's not a partial content request
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$data = fread($fhandle, $length);
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fclose($fhandle);
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header('HTTP/1.1 206 Partial Content');
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header('Content-Range: bytes ' . $offset . '-' . ($offset + $length) . '/' . $size);
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}//HEADERS FOR PARTIAL DOWNLOAD FACILITY BEGINS
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//USUAL HEADERS FOR DOWNLOAD
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header("Content-Disposition: attachment;filename=".$fileName);
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header('Content-Type: '.$contentType);
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header("Accept-Ranges: bytes");
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header("Pragma: public");
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header("Expires: -1");
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header("Cache-Control: no-cache");
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header("Cache-Control: public, must-revalidate, post-check=0, pre-check=0");
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header("Content-Length: ".filesize($filePath));
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$chunksize = 8 * (1024 * 1024); //8MB (highest possible fread length)
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if ($size > $chunksize){
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$handle = fopen($_FILES["file"]["tmp_name"], 'rb');
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$buffer = '';
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while (!feof($handle) && (connection_status() === CONNECTION_NORMAL))
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{
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$buffer = fread($handle, $chunksize);
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print $buffer;
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ob_flush();
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flush();
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}
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if(connection_status() !== CONNECTION_NORMAL){
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echo "Connection aborted";
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}
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fclose($handle);
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} else {
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ob_clean();
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flush();
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readfile($filePath);
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}
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} else {
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echo 'File does not exist!';
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}
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} else {
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echo 'There is no file to download!';
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}
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}
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/* Function to get correct MIME type for download */
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private function mimeTypes( $defaultType = null )
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{
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/* Just add any required MIME type if you are going to download something not listed here.*/
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$mime_types = array("323" => "text/h323",
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"acx" => "application/internet-property-stream",
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"ai" => "application/postscript",
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"aif" => "audio/x-aiff",
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"aifc" => "audio/x-aiff",
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"aiff" => "audio/x-aiff",
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"asf" => "video/x-ms-asf",
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"asr" => "video/x-ms-asf",
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"asx" => "video/x-ms-asf",
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"au" => "audio/basic",
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"avi" => "video/x-msvideo",
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"axs" => "application/olescript",
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"bas" => "text/plain",
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"bcpio" => "application/x-bcpio",
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"bin" => "application/octet-stream",
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"bmp" => "image/bmp",
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"c" => "text/plain",
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"cat" => "application/vnd.ms-pkiseccat",
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"cdf" => "application/x-cdf",
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"cer" => "application/x-x509-ca-cert",
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"class" => "application/octet-stream",
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"clp" => "application/x-msclip",
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"cmx" => "image/x-cmx",
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"cod" => "image/cis-cod",
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"cpio" => "application/x-cpio",
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"crd" => "application/x-mscardfile",
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"crl" => "application/pkix-crl",
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"crt" => "application/x-x509-ca-cert",
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"csh" => "application/x-csh",
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"css" => "text/css",
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"dcr" => "application/x-director",
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"der" => "application/x-x509-ca-cert",
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"dir" => "application/x-director",
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"dll" => "application/x-msdownload",
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"dms" => "application/octet-stream",
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"doc" => "application/msword",
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"dot" => "application/msword",
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"dvi" => "application/x-dvi",
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"dxr" => "application/x-director",
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"eps" => "application/postscript",
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"etx" => "text/x-setext",
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"evy" => "application/envoy",
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"exe" => "application/octet-stream",
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"fif" => "application/fractals",
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"flr" => "x-world/x-vrml",
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"gif" => "image/gif",
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"gtar" => "application/x-gtar",
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"gz" => "application/x-gzip",
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"h" => "text/plain",
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"hdf" => "application/x-hdf",
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"hlp" => "application/winhlp",
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"hqx" => "application/mac-binhex40",
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"hta" => "application/hta",
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"htc" => "text/x-component",
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"htm" => "text/html",
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"html" => "text/html",
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"htt" => "text/webviewhtml",
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"ico" => "image/x-icon",
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"ief" => "image/ief",
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"iii" => "application/x-iphone",
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"ins" => "application/x-internet-signup",
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"isp" => "application/x-internet-signup",
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"jfif" => "image/pipeg",
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"jpe" => "image/jpeg",
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"jpeg" => "image/jpeg",
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"jpg" => "image/jpeg",
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"js" => "application/x-javascript",
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"latex" => "application/x-latex",
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"lha" => "application/octet-stream",
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"lsf" => "video/x-la-asf",
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"lsx" => "video/x-la-asf",
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"lzh" => "application/octet-stream",
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"m13" => "application/x-msmediaview",
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"m14" => "application/x-msmediaview",
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"m3u" => "audio/x-mpegurl",
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"man" => "application/x-troff-man",
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"mdb" => "application/x-msaccess",
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"me" => "application/x-troff-me",
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"mht" => "message/rfc822",
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"mhtml" => "message/rfc822",
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"mid" => "audio/mid",
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"mny" => "application/x-msmoney",
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"mov" => "video/quicktime",
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"movie" => "video/x-sgi-movie",
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"mp2" => "video/mpeg",
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"mp3" => "audio/mpeg",
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"mpa" => "video/mpeg",
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"mpe" => "video/mpeg",
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"mpeg" => "video/mpeg",
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"mpg" => "video/mpeg",
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"mpp" => "application/vnd.ms-project",
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"mpv2" => "video/mpeg",
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"ms" => "application/x-troff-ms",
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"mvb" => "application/x-msmediaview",
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"nws" => "message/rfc822",
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"oda" => "application/oda",
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"p10" => "application/pkcs10",
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"p12" => "application/x-pkcs12",
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"p7b" => "application/x-pkcs7-certificates",
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"p7c" => "application/x-pkcs7-mime",
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"p7m" => "application/x-pkcs7-mime",
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"p7r" => "application/x-pkcs7-certreqresp",
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"p7s" => "application/x-pkcs7-signature",
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"pbm" => "image/x-portable-bitmap",
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"pdf" => "application/pdf",
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"pfx" => "application/x-pkcs12",
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"pgm" => "image/x-portable-graymap",
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"pko" => "application/ynd.ms-pkipko",
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"pma" => "application/x-perfmon",
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"pmc" => "application/x-perfmon",
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"pml" => "application/x-perfmon",
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"pmr" => "application/x-perfmon",
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"pmw" => "application/x-perfmon",
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"pnm" => "image/x-portable-anymap",
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"pot" => "application/vnd.ms-powerpoint",
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"ppm" => "image/x-portable-pixmap",
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"pps" => "application/vnd.ms-powerpoint",
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"ppt" => "application/vnd.ms-powerpoint",
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"prf" => "application/pics-rules",
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"ps" => "application/postscript",
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"pub" => "application/x-mspublisher",
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"qt" => "video/quicktime",
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"ra" => "audio/x-pn-realaudio",
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"ram" => "audio/x-pn-realaudio",
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"ras" => "image/x-cmu-raster",
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"rgb" => "image/x-rgb",
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"rmi" => "audio/mid",
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"roff" => "application/x-troff",
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"rtf" => "application/rtf",
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"rtx" => "text/richtext",
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"scd" => "application/x-msschedule",
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"sct" => "text/scriptlet",
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"setpay" => "application/set-payment-initiation",
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"setreg" => "application/set-registration-initiation",
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"sh" => "application/x-sh",
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"shar" => "application/x-shar",
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"sit" => "application/x-stuffit",
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"snd" => "audio/basic",
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|
"spc" => "application/x-pkcs7-certificates",
|
||
|
|
"spl" => "application/futuresplash",
|
||
|
|
"src" => "application/x-wais-source",
|
||
|
|
"sst" => "application/vnd.ms-pkicertstore",
|
||
|
|
"stl" => "application/vnd.ms-pkistl",
|
||
|
|
"stm" => "text/html",
|
||
|
|
"svg" => "image/svg+xml",
|
||
|
|
"sv4cpio" => "application/x-sv4cpio",
|
||
|
|
"sv4crc" => "application/x-sv4crc",
|
||
|
|
"t" => "application/x-troff",
|
||
|
|
"tar" => "application/x-tar",
|
||
|
|
"tcl" => "application/x-tcl",
|
||
|
|
"tex" => "application/x-tex",
|
||
|
|
"texi" => "application/x-texinfo",
|
||
|
|
"texinfo" => "application/x-texinfo",
|
||
|
|
"tgz" => "application/x-compressed",
|
||
|
|
"tif" => "image/tiff",
|
||
|
|
"tiff" => "image/tiff",
|
||
|
|
"tr" => "application/x-troff",
|
||
|
|
"trm" => "application/x-msterminal",
|
||
|
|
"tsv" => "text/tab-separated-values",
|
||
|
|
"txt" => "text/plain",
|
||
|
|
"uls" => "text/iuls",
|
||
|
|
"ustar" => "application/x-ustar",
|
||
|
|
"vcf" => "text/x-vcard",
|
||
|
|
"vrml" => "x-world/x-vrml",
|
||
|
|
"wav" => "audio/x-wav",
|
||
|
|
"wcm" => "application/vnd.ms-works",
|
||
|
|
"wdb" => "application/vnd.ms-works",
|
||
|
|
"wks" => "application/vnd.ms-works",
|
||
|
|
"wmf" => "application/x-msmetafile",
|
||
|
|
"wps" => "application/vnd.ms-works",
|
||
|
|
"wri" => "application/x-mswrite",
|
||
|
|
"wrl" => "x-world/x-vrml",
|
||
|
|
"wrz" => "x-world/x-vrml",
|
||
|
|
"xaf" => "x-world/x-vrml",
|
||
|
|
"xbm" => "image/x-xbitmap",
|
||
|
|
"xla" => "application/vnd.ms-excel",
|
||
|
|
"xlc" => "application/vnd.ms-excel",
|
||
|
|
"xlm" => "application/vnd.ms-excel",
|
||
|
|
"xls" => "application/vnd.ms-excel",
|
||
|
|
"xlt" => "application/vnd.ms-excel",
|
||
|
|
"xlw" => "application/vnd.ms-excel",
|
||
|
|
"xof" => "x-world/x-vrml",
|
||
|
|
"xpm" => "image/x-xpixmap",
|
||
|
|
"xwd" => "image/x-xwindowdump",
|
||
|
|
"z" => "application/x-compress",
|
||
|
|
"rar" => "application/x-rar-compressed",
|
||
|
|
"zip" => "application/zip");
|
||
|
|
return $mime_types;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
?>
|