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-rw-r--r--include/smarty/libs/sysplugins/smarty_internal_write_file.php88
1 files changed, 88 insertions, 0 deletions
diff --git a/include/smarty/libs/sysplugins/smarty_internal_write_file.php b/include/smarty/libs/sysplugins/smarty_internal_write_file.php
new file mode 100644
index 000000000..e5d19ce8d
--- /dev/null
+++ b/include/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;
+ }
+
+}
+
+?> \ No newline at end of file