/**
* Write or create new cache file
*
* @param string
* @param string | html
* @return void
*/
function write($filename, $content)
{
if (!Config::read('App.Base.enable_cache')) {
return;
}
$expire = time() + $this->getConfig('cache_expiration') * 60;
$filename = md5($filename);
$filepath = $this->getConfig('cache_path') . $filename . '.tmp';
if (!($fp = @fopen($filepath, 'w'))) {
Loader::getClass('Sky.core.Log')->write(400, 'Unable to write cache file: ' . $filepath);
Exceptions::showError('error', "Unable to write cache file: " . $filepath);
}
if (flock($fp, LOCK_EX)) {
fwrite($fp, $expire . 'T_SKY-->' . $content);
flock($fp, LOCK_UN);
} else {
Loader::getClass('Sky.core.Log')->write(300, 'Unable to secure a file lock for file at: ' . $filepath);
return;
}
fclose($fp);
@chmod($filepath, 0755);
}
/**
* Filter segments for malicious characters
*
* @access private
* @param string
* @return string
*/
private function _filter_uri($str)
{
if ($str != '' && $this->getConfig('permitted_uri_chars') != '' && $this->getConfig('enable_query_strings') == FALSE) {
// preg_quote() in PHP 5.3 escapes -, so the str_replace() and addition of - to preg_quote() is to maintain backwards
// compatibility as many are unaware of how characters in the permitted_uri_chars will be parsed as a regex pattern
if (!preg_match("|^[" . str_replace(array('\\-', '\\-'), '-', preg_quote($this->getConfig('permitted_uri_chars'), '-')) . "]+\$|i", $str)) {
Exceptions::showError('Server Error', 'The URI you submitted has disallowed characters.');
}
}
// Convert programatic characters to entities
$bad = array('$', '(', ')', '%28', '%29');
$good = array('$', '(', ')', '(', ')');
return str_replace($bad, $good, $str);
}
