autoupdate Maxmind (geoip) database

autoupdate_maxmind_geoip_db.php

<?php

// To use it update $license_key, $db_filenamea and $dist_db_path then call:
\geoip_db::update();

/**
 * Update Maxmind DB
 * by Mohamad Hamouday
 */
class geoip_db
{
	static private $license_key  = "YOUR License_Key";
	static private $db_filename  = "GeoLite2-Country.mmdb";
	static private $dist_db_path = __DIR__ . "/database/";

	static public function update()
	{
		$min_db_size     = 100000;
		$tmp_folder_name = uniqid();
		$temp_folder     = __DIR__ . "/{$tmp_folder_name}";
		$tar_path        = $temp_folder . "/geoip.tar.gz";

		self::create_full_directory($temp_folder);
		self::create_full_directory(self::$dist_db_path);

		$result = self::download_remote_file("https://download.maxmind.com/app/geoip_download?edition_id=GeoLite2-Country&license_key=". self::$license_key ."&suffix=tar.gz", $tar_path);
		if($result)
		{
			$result = self::extract_tar_file($tar_path, $temp_folder);
			if($result)
			{
				$files = preg_grep('/^GeoLite2/', scandir($temp_folder));
				if($files)
				{
					$db_folder_name = end($files);
					if($db_folder_name)
					{
						$old_db_path = "{$temp_folder}/{$db_folder_name}/". self::$db_filename;
						if(file_exists($old_db_path) && filesize($old_db_path) > $min_db_size)
						{
							if(rename($old_db_path, self::$dist_db_path . "/". self::$db_filename))
							{
								self::delete_directory($temp_folder);
								return true;
							}
						}
					}
				}
			}
			else
			{
				throw new \Exception("Can't extract maxmind db file");
			}
		}
		else
		{
			throw new \Exception("Can't download maxmind db");
		}
		return false;
	}


	static private function download_remote_file($remote_file, $dist)
	{
		$file_size = file_put_contents($dist, fopen($remote_file, 'r'));
		if($file_size){
			return true;
		}

		return false;
	}

	static private function extract_tar_file($file_name, $dist)
	{
		if(file_exists($file_name))
		{
			$result = self::create_full_directory($dist);
			if(file_exists($file_name))
			{
				try{
					$phar = new \PharData($file_name);
					$phar->extractTo($dist, null, true); // extract all files, and overwrite
				}
				catch (\Throwable $e)
				{
				    throw new \Exception("Can't extract tar file",['err' => \logging::get_error_info($e)]);
				    return false;
				}

				if(file_exists($dist)){
					return true;
				}
			}
		}
		return false;
	}

	static private function create_full_directory($path)
	{
		if (is_dir($path)) return true;
		if(!file_exists($path))
		{
			$pos = strrpos($path, '/', -2);
			if($pos === false){
				$path = "./$path";
				$pos = strrpos($path, '/', -2);
			}

			$prev_path = substr($path, 0, $pos + 1 );
			$return    = self::create_full_directory($prev_path);
			if($return && is_writable($prev_path))
			{
				if(!file_exists($path))
				{
					return mkdir($path);
				}
			}
			else
			{
				return false;
			}
		}
		return true;
	}


	static private function delete_directory($dir)
	{
		if(is_dir($dir))
		{
			$files = glob( $dir . '*', GLOB_MARK ); //GLOB_MARK adds a slash to directories returned

			foreach( $files as $file )
			{
				self::delete_directory( $file );
			}
			if(file_exists($dir))
			{
				rmdir($dir);
			}
		}
		elseif(is_file($dir))
		{
			unlink( $dir );
		}
	}
}