0,0 → 1,100 |
<?php |
/** |
* Smarty write file plugin |
* |
* @package Smarty |
* @subpackage PluginsInternal |
* @author Monte Ohrt |
*/ |
|
/** |
* Smarty Internal Write File Class |
* |
* @package Smarty |
* @subpackage PluginsInternal |
*/ |
class Smarty_Internal_Runtime_WriteFile |
{ |
/** |
* Writes file in a safe way to disk |
* |
* @param string $_filepath complete filepath |
* @param string $_contents file content |
* @param Smarty $smarty smarty instance |
* |
* @throws SmartyException |
* @return boolean true |
*/ |
public function writeFile($_filepath, $_contents, Smarty $smarty) |
{ |
$_error_reporting = error_reporting(); |
error_reporting($_error_reporting & ~E_NOTICE & ~E_WARNING); |
$_file_perms = property_exists($smarty, '_file_perms') ? $smarty->_file_perms : 0644; |
$_dir_perms = |
property_exists($smarty, '_dir_perms') ? (isset($smarty->_dir_perms) ? $smarty->_dir_perms : 0777) : 0771; |
if ($_file_perms !== null) { |
$old_umask = umask(0); |
} |
$_dirpath = dirname($_filepath); |
// if subdirs, create dir structure |
if ($_dirpath !== '.') { |
$i = 0; |
// loop if concurrency problem occurs |
// see https://bugs.php.net/bug.php?id=35326 |
while (!is_dir($_dirpath)) { |
if (@mkdir($_dirpath, $_dir_perms, true)) { |
break; |
} |
clearstatcache(); |
if (++$i === 3) { |
error_reporting($_error_reporting); |
throw new SmartyException("unable to create directory {$_dirpath}"); |
} |
sleep(1); |
} |
} |
// write to tmp file, then move to overt file lock race condition |
$_tmp_file = $_dirpath . DIRECTORY_SEPARATOR . str_replace(array('.', ','), '_', uniqid('wrt', true)); |
if (!file_put_contents($_tmp_file, $_contents)) { |
error_reporting($_error_reporting); |
throw new SmartyException("unable to write file {$_tmp_file}"); |
} |
/* |
* Windows' rename() fails if the destination exists, |
* Linux' rename() properly handles the overwrite. |
* Simply unlink()ing a file might cause other processes |
* currently reading that file to fail, but linux' rename() |
* seems to be smart enough to handle that for us. |
*/ |
if (Smarty::$_IS_WINDOWS) { |
// remove original file |
if (is_file($_filepath)) { |
@unlink($_filepath); |
} |
// rename tmp file |
$success = @rename($_tmp_file, $_filepath); |
} else { |
// rename tmp file |
$success = @rename($_tmp_file, $_filepath); |
if (!$success) { |
// remove original file |
if (is_file($_filepath)) { |
@unlink($_filepath); |
} |
// rename tmp file |
$success = @rename($_tmp_file, $_filepath); |
} |
} |
if (!$success) { |
error_reporting($_error_reporting); |
throw new SmartyException("unable to write file {$_filepath}"); |
} |
if ($_file_perms !== null) { |
// set file permissions |
chmod($_filepath, $_file_perms); |
umask($old_umask); |
} |
error_reporting($_error_reporting); |
return true; |
} |
} |