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<?php
namespace mikehaertl\tmp;
/**
* File
*
* A convenience class for temporary files.
*
* @author Michael Härtl <haertl.mike@gmail.com>
* @license http://www.opensource.org/licenses/MIT
*/
class File
{
/**
* @var bool whether to delete the tmp file when it's no longer referenced
* or when the request ends. Default is `true`.
*/
public $delete = true;
/**
* @var string the name of this file
*/
protected $_fileName;
/**
* Constructor
*
* @param string $content the tmp file content
* @param string|null $suffix the optional suffix for the tmp file
* @param string|null $prefix the optional prefix for the tmp file. If null
* 'php_tmpfile_' is used.
* @param string|null $directory directory where the file should be
* created. Autodetected if not provided.
*/
public function __construct($content, $suffix = null, $prefix = null, $directory = null)
{
if ($directory === null) {
$directory = self::getTempDir();
}
if ($prefix === null) {
$prefix = 'php_tmpfile_';
}
$this->_fileName = tempnam($directory,$prefix);
if ($suffix !== null) {
$newName = $this->_fileName . $suffix;
rename($this->_fileName, $newName);
$this->_fileName = $newName;
}
file_put_contents($this->_fileName, $content);
}
/**
* Delete tmp file on shutdown if `$delete` is `true`
*/
public function __destruct()
{
if ($this->delete && file_exists($this->_fileName)) {
unlink($this->_fileName);
}
}
/**
* Send tmp file to client, either inline or as download
*
* @param string|null $filename the filename to send. If empty, the file is
* streamed inline.
* @param string $contentType the Content-Type header
* @param bool $inline whether to force inline display of the file, even if
* filename is present.
*/
public function send($filename = null, $contentType, $inline = false)
{
header('Pragma: public');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Content-Type: '.$contentType);
header('Content-Transfer-Encoding: binary');
//#11 Undefined index: HTTP_USER_AGENT
$userAgent = isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : '';
// #84: Content-Length leads to "network connection was lost" on iOS
$isIOS = preg_match('/i(phone|pad|pod)/i', $userAgent);
if (!$isIOS) {
header('Content-Length: ' . filesize($this->_fileName));
}
if ($filename !== null || $inline) {
$disposition = $inline ? 'inline' : 'attachment';
$encodedFilename = rawurlencode($filename);
header(
"Content-Disposition: $disposition; " .
"filename=\"$filename\"; " .
"filename*=UTF-8''$encodedFilename"
);
}
readfile($this->_fileName);
}
/**
* @param string $name the name to save the file as
* @return bool whether the file could be saved
*/
public function saveAs($name)
{
return copy($this->_fileName, $name);
}
/**
* @return string the full file name
*/
public function getFileName()
{
return $this->_fileName;
}
/**
* @return string the path to the temp directory
*/
public static function getTempDir()
{
if (function_exists('sys_get_temp_dir')) {
return sys_get_temp_dir();
} elseif (
($tmp = getenv('TMP')) ||
($tmp = getenv('TEMP')) ||
($tmp = getenv('TMPDIR'))
) {
return realpath($tmp);
} else {
return '/tmp';
}
}
/**
* @return string the full file name
*/
public function __toString()
{
return $this->_fileName;
}
}
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