phpBB 3.1 cache ext autoloaders

cache_ext_autoloaders.php

/**
* Load the autoloaders added by the extensions.
*
* @param string $phpbb_root_path Path to the phpbb root directory.
*/
function phpbb_load_extensions_autoloaders($phpbb_root_path, $phpEx)
{
	$cache_filename = $phpbb_root_path . 'cache/autoload.' . $phpEx;

	if (!file_exists($cache_filename))
	{
		$extensions_autoloaders_cache_file_data = phpbb_create_extensions_autoloaders_cache_file_data($phpbb_root_path);

		// Assume it will work ... if nothing goes wrong below
		$written = true;

		if (!($fp = @fopen($cache_filename, 'w')))
		{
			// Something went wrong ... so let's try another method
			$written = false;
		}

		if (!(@fwrite($fp, $extensions_autoloaders_cache_file_data)))
		{
			// Something went wrong ... so let's try another method
			$written = false;
		}

		@fclose($fp);

		if ($written)
		{
			// For safety, set chmod() to CHMOD_READ
			phpbb_chmod($cache_filename, CHMOD_READ);
		}
	}

	require($cache_filename);
}

/**
* Creates the output to be stored in a phpBB cache/autoload.php file
*
* @return	string	The output to write to the file
*/
function phpbb_create_extensions_autoloaders_cache_file_data($phpbb_root_path)
{
	$extensions_autoloaders_data = "<?php\n";
	$extensions_autoloaders_data .= "// phpBB auto-generated extensions autoloaders cache file\n// Do not change anything in this file!\n\n";
	$extensions_autoloaders_data .= "if (!defined('IN_PHPBB'))\n{\n";
	$extensions_autoloaders_data .= "	exit;\n}\n";

	$iterator = new \RecursiveIteratorIterator(
		new \phpbb\recursive_dot_prefix_filter_iterator(
			new \RecursiveDirectoryIterator(
				$phpbb_root_path . 'ext/',
				\FilesystemIterator::SKIP_DOTS | \FilesystemIterator::FOLLOW_SYMLINKS
			)
		),
		\RecursiveIteratorIterator::SELF_FIRST
	);
	$iterator->setMaxDepth(2);

	foreach ($iterator as $file_info)
	{
		if ($file_info->getFilename() === 'vendor' && $iterator->getDepth() === 2)
		{
			$filename = $file_info->getRealPath() . DIRECTORY_SEPARATOR . 'autoload.php';
			if (file_exists($filename))
			{
				$extensions_autoloaders_data .= "\nrequire('$filename');";
			}
		}
	}

	$extensions_autoloaders_data .= "\n";

	return $extensions_autoloaders_data;
}