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author | Vasudev Kamath <kamathvasudev@gmail.com> | 2012-07-06 22:47:27 +0530 |
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committer | Vasudev Kamath <kamathvasudev@gmail.com> | 2012-07-06 22:47:27 +0530 |
commit | ba4db236ecff1ffdb56adc2715b3f53515f8cb34 (patch) | |
tree | f0b9928aade8aab95d1608890fde1918ce163754 /library/Smarty/libs/sysplugins/smarty_internal_write_file.php | |
parent | 6e4760dd9c512147309b5e4a98d25216610f81da (diff) | |
parent | a122fecf50d06856a2ada8b564f711fb52c327f0 (diff) | |
download | volse-hubzilla-ba4db236ecff1ffdb56adc2715b3f53515f8cb34.tar.gz volse-hubzilla-ba4db236ecff1ffdb56adc2715b3f53515f8cb34.tar.bz2 volse-hubzilla-ba4db236ecff1ffdb56adc2715b3f53515f8cb34.zip |
Merge branch 'master' of git://github.com/friendica/friendica
Diffstat (limited to 'library/Smarty/libs/sysplugins/smarty_internal_write_file.php')
-rw-r--r-- | library/Smarty/libs/sysplugins/smarty_internal_write_file.php | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/library/Smarty/libs/sysplugins/smarty_internal_write_file.php b/library/Smarty/libs/sysplugins/smarty_internal_write_file.php new file mode 100644 index 000000000..e5d19ce8d --- /dev/null +++ b/library/Smarty/libs/sysplugins/smarty_internal_write_file.php @@ -0,0 +1,88 @@ +<?php +/** + * Smarty write file plugin + * + * @package Smarty + * @subpackage PluginsInternal + * @author Monte Ohrt + */ + +/** + * Smarty Internal Write File Class + * + * @package Smarty + * @subpackage PluginsInternal + */ +class Smarty_Internal_Write_File { + + /** + * Writes file in a safe way to disk + * + * @param string $_filepath complete filepath + * @param string $_contents file content + * @param Smarty $smarty smarty instance + * @return boolean true + */ + public static function writeFile($_filepath, $_contents, Smarty $smarty) + { + $_error_reporting = error_reporting(); + error_reporting($_error_reporting & ~E_NOTICE & ~E_WARNING); + if ($smarty->_file_perms !== null) { + $old_umask = umask(0); + } + + $_dirpath = dirname($_filepath); + // if subdirs, create dir structure + if ($_dirpath !== '.' && !file_exists($_dirpath)) { + mkdir($_dirpath, $smarty->_dir_perms === null ? 0777 : $smarty->_dir_perms, true); + } + + // write to tmp file, then move to overt file lock race condition + $_tmp_file = $_dirpath . DS . uniqid('wrt', true); + if (!file_put_contents($_tmp_file, $_contents)) { + error_reporting($_error_reporting); + throw new SmartyException("unable to write file {$_tmp_file}"); + return false; + } + + /* + * Windows' rename() fails if the destination exists, + * Linux' rename() properly handles the overwrite. + * Simply unlink()ing a file might cause other processes + * currently reading that file to fail, but linux' rename() + * seems to be smart enough to handle that for us. + */ + if (Smarty::$_IS_WINDOWS) { + // remove original file + @unlink($_filepath); + // rename tmp file + $success = @rename($_tmp_file, $_filepath); + } else { + // rename tmp file + $success = @rename($_tmp_file, $_filepath); + if (!$success) { + // remove original file + @unlink($_filepath); + // rename tmp file + $success = @rename($_tmp_file, $_filepath); + } + } + + if (!$success) { + error_reporting($_error_reporting); + throw new SmartyException("unable to write file {$_filepath}"); + return false; + } + + if ($smarty->_file_perms !== null) { + // set file permissions + chmod($_filepath, $smarty->_file_perms); + umask($old_umask); + } + error_reporting($_error_reporting); + return true; + } + +} + +?>
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