<?php /** * Methods to display or download any type of file * * PHP versions 4 and 5 * * CakePHP(tm) : Rapid Development Framework (http://cakephp.org) * Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org) * * Licensed under The MIT License * Redistributions of files must retain the above copyright notice. * * @copyright Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org) * @link http://cakephp.org CakePHP(tm) Project * @package cake * @subpackage cake.cake.libs.view * @since CakePHP(tm) v 1.2.0.5714 * @license MIT License (http://www.opensource.org/licenses/mit-license.php) */ App::import('View', 'View', false); class MediaView extends View { /** * Holds known mime type mappings * * @var array * @access public */ var $mimeType = array( 'ai' => 'application/postscript', 'bcpio' => 'application/x-bcpio', 'bin' => 'application/octet-stream', 'ccad' => 'application/clariscad', 'cdf' => 'application/x-netcdf', 'class' => 'application/octet-stream', 'cpio' => 'application/x-cpio', 'cpt' => 'application/mac-compactpro', 'csh' => 'application/x-csh', 'csv' => 'application/csv', 'dcr' => 'application/x-director', 'dir' => 'application/x-director', 'dms' => 'application/octet-stream', 'doc' => 'application/msword', 'drw' => 'application/drafting', 'dvi' => 'application/x-dvi', 'dwg' => 'application/acad', 'dxf' => 'application/dxf', 'dxr' => 'application/x-director', 'eot' => 'application/vnd.ms-fontobject', 'eps' => 'application/postscript', 'exe' => 'application/octet-stream', 'ez' => 'application/andrew-inset', 'flv' => 'video/x-flv', 'gtar' => 'application/x-gtar', 'gz' => 'application/x-gzip', 'bz2' => 'application/x-bzip', '7z' => 'application/x-7z-compressed', 'hdf' => 'application/x-hdf', 'hqx' => 'application/mac-binhex40', 'ico' => 'image/vnd.microsoft.icon', 'ips' => 'application/x-ipscript', 'ipx' => 'application/x-ipix', 'js' => 'application/x-javascript', 'latex' => 'application/x-latex', 'lha' => 'application/octet-stream', 'lsp' => 'application/x-lisp', 'lzh' => 'application/octet-stream', 'man' => 'application/x-troff-man', 'me' => 'application/x-troff-me', 'mif' => 'application/vnd.mif', 'ms' => 'application/x-troff-ms', 'nc' => 'application/x-netcdf', 'oda' => 'application/oda', 'otf' => 'font/otf', 'pdf' => 'application/pdf', 'pgn' => 'application/x-chess-pgn', 'pot' => 'application/mspowerpoint', 'pps' => 'application/mspowerpoint', 'ppt' => 'application/mspowerpoint', 'ppz' => 'application/mspowerpoint', 'pre' => 'application/x-freelance', 'prt' => 'application/pro_eng', 'ps' => 'application/postscript', 'roff' => 'application/x-troff', 'scm' => 'application/x-lotusscreencam', 'set' => 'application/set', 'sh' => 'application/x-sh', 'shar' => 'application/x-shar', 'sit' => 'application/x-stuffit', 'skd' => 'application/x-koan', 'skm' => 'application/x-koan', 'skp' => 'application/x-koan', 'skt' => 'application/x-koan', 'smi' => 'application/smil', 'smil' => 'application/smil', 'sol' => 'application/solids', 'spl' => 'application/x-futuresplash', 'src' => 'application/x-wais-source', 'step' => 'application/STEP', 'stl' => 'application/SLA', 'stp' => 'application/STEP', 'sv4cpio' => 'application/x-sv4cpio', 'sv4crc' => 'application/x-sv4crc', 'svg' => 'image/svg+xml', 'svgz' => 'image/svg+xml', 'swf' => 'application/x-shockwave-flash', 't' => 'application/x-troff', 'tar' => 'application/x-tar', 'tcl' => 'application/x-tcl', 'tex' => 'application/x-tex', 'texi' => 'application/x-texinfo', 'texinfo' => 'application/x-texinfo', 'tr' => 'application/x-troff', 'tsp' => 'application/dsptype', 'ttf' => 'font/ttf', 'unv' => 'application/i-deas', 'ustar' => 'application/x-ustar', 'vcd' => 'application/x-cdlink', 'vda' => 'application/vda', 'xlc' => 'application/vnd.ms-excel', 'xll' => 'application/vnd.ms-excel', 'xlm' => 'application/vnd.ms-excel', 'xls' => 'application/vnd.ms-excel', 'xlw' => 'application/vnd.ms-excel', 'zip' => 'application/zip', 'aif' => 'audio/x-aiff', 'aifc' => 'audio/x-aiff', 'aiff' => 'audio/x-aiff', 'au' => 'audio/basic', 'kar' => 'audio/midi', 'mid' => 'audio/midi', 'midi' => 'audio/midi', 'mp2' => 'audio/mpeg', 'mp3' => 'audio/mpeg', 'mpga' => 'audio/mpeg', 'ra' => 'audio/x-realaudio', 'ram' => 'audio/x-pn-realaudio', 'rm' => 'audio/x-pn-realaudio', 'rpm' => 'audio/x-pn-realaudio-plugin', 'snd' => 'audio/basic', 'tsi' => 'audio/TSP-audio', 'wav' => 'audio/x-wav', 'asc' => 'text/plain', 'c' => 'text/plain', 'cc' => 'text/plain', 'css' => 'text/css', 'etx' => 'text/x-setext', 'f' => 'text/plain', 'f90' => 'text/plain', 'h' => 'text/plain', 'hh' => 'text/plain', 'htm' => 'text/html', 'html' => 'text/html', 'm' => 'text/plain', 'rtf' => 'text/rtf', 'rtx' => 'text/richtext', 'sgm' => 'text/sgml', 'sgml' => 'text/sgml', 'tsv' => 'text/tab-separated-values', 'tpl' => 'text/template', 'txt' => 'text/plain', 'xml' => 'text/xml', 'avi' => 'video/x-msvideo', 'fli' => 'video/x-fli', 'mov' => 'video/quicktime', 'movie' => 'video/x-sgi-movie', 'mpe' => 'video/mpeg', 'mpeg' => 'video/mpeg', 'mpg' => 'video/mpeg', 'qt' => 'video/quicktime', 'viv' => 'video/vnd.vivo', 'vivo' => 'video/vnd.vivo', 'gif' => 'image/gif', 'ief' => 'image/ief', 'jpe' => 'image/jpeg', 'jpeg' => 'image/jpeg', 'jpg' => 'image/jpeg', 'pbm' => 'image/x-portable-bitmap', 'pgm' => 'image/x-portable-graymap', 'png' => 'image/png', 'pnm' => 'image/x-portable-anymap', 'ppm' => 'image/x-portable-pixmap', 'ras' => 'image/cmu-raster', 'rgb' => 'image/x-rgb', 'tif' => 'image/tiff', 'tiff' => 'image/tiff', 'xbm' => 'image/x-xbitmap', 'xpm' => 'image/x-xpixmap', 'xwd' => 'image/x-xwindowdump', 'ice' => 'x-conference/x-cooltalk', 'iges' => 'model/iges', 'igs' => 'model/iges', 'mesh' => 'model/mesh', 'msh' => 'model/mesh', 'silo' => 'model/mesh', 'vrml' => 'model/vrml', 'wrl' => 'model/vrml', 'mime' => 'www/mime', 'pdb' => 'chemical/x-pdb', 'xyz' => 'chemical/x-pdb'); /** * Holds headers sent to browser before rendering media * * @var array * @access protected */ var $_headers = array(); /** * Constructor * * @param object $controller */ function __construct(&$controller) { parent::__construct($controller); } /** * Display or download the given file * * @return unknown */ function render() { $name = $download = $extension = $id = $modified = $path = $size = $cache = $mimeType = null; extract($this->viewVars, EXTR_OVERWRITE); if ($size) { $id = $id . '_' . $size; } if (is_dir($path)) { $path = $path . $id; } else { $path = APP . $path . $id; } if (!file_exists($path)) { header('Content-Type: text/html'); $this->cakeError('error404'); } if (is_null($name)) { $name = $id; } if (is_array($mimeType)) { $this->mimeType = array_merge($this->mimeType, $mimeType); } if (isset($extension) && isset($this->mimeType[$extension]) && connection_status() == 0) { $chunkSize = 8192; $buffer = ''; $fileSize = @filesize($path); $handle = fopen($path, 'rb'); if ($handle === false) { return false; } if (!empty($modified)) { $modified = gmdate('D, d M Y H:i:s', strtotime($modified, time())) . ' GMT'; } else { $modified = gmdate('D, d M Y H:i:s') . ' GMT'; } if ($download) { $contentTypes = array('application/octet-stream'); $agent = env('HTTP_USER_AGENT'); if (preg_match('%Opera(/| )([0-9].[0-9]{1,2})%', $agent)) { $contentTypes[0] = 'application/octetstream'; } else if (preg_match('/MSIE ([0-9].[0-9]{1,2})/', $agent)) { $contentTypes[0] = 'application/force-download'; array_merge($contentTypes, array( 'application/octet-stream', 'application/download' )); } foreach($contentTypes as $contentType) { $this->_header('Content-Type: ' . $contentType); } $this->_header(array( 'Content-Disposition: attachment; filename="' . $name . '.' . $extension . '";', 'Expires: 0', 'Accept-Ranges: bytes', 'Cache-Control: private' => false, 'Pragma: private')); $httpRange = env('HTTP_RANGE'); if (isset($httpRange)) { list($toss, $range) = explode('=', $httpRange); $size = $fileSize - 1; $length = $fileSize - $range; $this->_header(array( 'HTTP/1.1 206 Partial Content', 'Content-Length: ' . $length, 'Content-Range: bytes ' . $range . $size . '/' . $fileSize)); fseek($handle, $range); } else { $this->_header('Content-Length: ' . $fileSize); } } else { $this->_header('Date: ' . gmdate('D, d M Y H:i:s', time()) . ' GMT'); if ($cache) { if (!is_numeric($cache)) { $cache = strtotime($cache) - time(); } $this->_header(array( 'Cache-Control: max-age=' . $cache, 'Expires: ' . gmdate('D, d M Y H:i:s', time() + $cache) . ' GMT', 'Pragma: cache')); } else { $this->_header(array( 'Cache-Control: must-revalidate, post-check=0, pre-check=0', 'Pragma: no-cache')); } $this->_header(array( 'Last-Modified: ' . $modified, 'Content-Type: ' . $this->mimeType[$extension], 'Content-Length: ' . $fileSize)); } $this->_output(); $this->_clearBuffer(); while (!feof($handle)) { if (!$this->_isActive()) { fclose($handle); return false; } set_time_limit(0); $buffer = fread($handle, $chunkSize); echo $buffer; $this->_flushBuffer(); } fclose($handle); return; } return false; } /** * Method to set headers * @param mixed $header * @param boolean $boolean * @access protected */ function _header($header, $boolean = true) { if (is_array($header)) { foreach ($header as $string => $boolean) { if (is_numeric($string)) { $this->_headers[] = array($boolean => true); } else { $this->_headers[] = array($string => $boolean); } } return; } $this->_headers[] = array($header => $boolean); return; } /** * Method to output headers * @access protected */ function _output() { foreach ($this->_headers as $key => $value) { $header = key($value); header($header, $value[$header]); } } /** * Returns true if connection is still active * @return boolean * @access protected */ function _isActive() { return connection_status() == 0 && !connection_aborted(); } /** * Clears the contents of the topmost output buffer and discards them * @return boolean * @access protected */ function _clearBuffer() { return @ob_end_clean(); } /** * Flushes the contents of the output buffer * @access protected */ function _flushBuffer() { @flush(); @ob_flush(); } }