function writeRewriteFile()
{
$adapter = Mage::getModel('freelunchlabs_cloudfront/refreshadapters_apache');
$base_dir = Mage::getBaseDir() . DS;
$file = new Varien_Io_File();
try {
if ($file->cd($base_dir) && $file->checkAndCreateFolder($this->cdn_rewrite_directory, 0755)) {
if ($file->cd($base_dir . $this->cdn_rewrite_directory)) {
if (!$file->write($adapter->filename, $adapter->buildFileContents(), 0644)) {
throw new Exception("Could not write .htaccess to: " . $file->pwd());
}
}
}
} catch (Exception $e) {
Mage::getSingleton('core/session')->addWarning('Configuration saved but there was an error creating the .htaccess file: ' . $e->getMessage());
}
}