69 lines
2.5 KiB
PHP
69 lines
2.5 KiB
PHP
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<?php
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class download {
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var $properties = array ('old_name' => "", 'new_name' => "", 'type' => "", 'size' => "", 'resume' => "", 'max_speed' => "" );
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var $range = 0;
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function download($path, $name = "", $resume = 0, $max_speed = 0) {
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$name = ($name == "") ? substr( strrchr( "/" . $path, "/" ), 1 ) : $name;
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$name = explode( "/", $name );
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$name = end( $name );
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$file_size = @filesize( $path );
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$this->properties = array ('old_name' => $path, 'new_name' => $name, 'type' => "application/force-download", 'size' => $file_size, 'resume' => $resume, 'max_speed' => $max_speed );
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if( $this->properties['resume'] ) {
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if( isset( $_SERVER['HTTP_RANGE'] ) ) {
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$this->range = $_SERVER['HTTP_RANGE'];
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$this->range = str_replace( "bytes=", "", $this->range );
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$this->range = str_replace( "-", "", $this->range );
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} else {$this->range = 0;}
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if( $this->range > $this->properties['size'] ) $this->range = 0;
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} else {
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$this->range = 0;
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}}
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function download_file() {
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if( $this->range ) {header( $_SERVER['SERVER_PROTOCOL'] . " 206 Partial Content" );
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} else {header( $_SERVER['SERVER_PROTOCOL'] . " 200 OK" );}
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header( "Pragma: public" );
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header( "Expires: 0" );
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header( "Cache-Control: must-revalidate, post-check=0, pre-check=0");
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header( "Cache-Control: private", false);
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header( "Content-Type: " . $this->properties['type'] );
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header( 'Content-Disposition: attachment; filename="[files-sib.net]' . $this->properties['new_name'] . '";' );
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header( "Content-Transfer-Encoding: binary" );
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if( $this->properties['resume'] ) header( "Accept-Ranges: bytes" );
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if( $this->range ) {
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header( "Content-Range: bytes {$this->range}-" . ($this->properties['size'] - 1) . "/" . $this->properties['size'] );
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header( "Content-Length: " . ($this->properties['size'] - $this->range) );
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} else {
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header( "Content-Length: " . $this->properties['size'] );
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}
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@ini_set( 'max_execution_time', 0 );
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@set_time_limit();
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$this->_download( $this->properties['old_name'], $this->range );
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}
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function _download($filename, $range = 0) {
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@ob_end_clean();
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if( ($speed = $this->properties['max_speed']) > 0 ) $sleep_time = (8 / $speed) * 1e6;
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else $sleep_time = 0;
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$handle = fopen( $filename, 'rb' );
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fseek( $handle, $range );
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if( $handle === false ) {return false;}
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while ( ! feof( $handle ) ) {
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print( fread( $handle, 1024 * 8 ) );
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ob_flush();
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flush();
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usleep( $sleep_time );
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}
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fclose( $handle );
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return true;
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}}
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?>
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