Threema\MsgApi\PublicKeyStores\File

Complexity

Total Complexity

9

Size/Duplication

Total Lines	68
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	2

Importance

Changes	2
Bugs	0	Features	1

4 Methods

Rating	Name	Duplication	Size	Complexity
A	findPublicKey()	0	20	4
A	savePublicKey()	0	3	1
A	__construct()	0	6	2
A	create()	0	8	2

<?php
/**
 * @author Threema GmbH
 * @copyright Copyright (c) 2015-2016 Threema GmbH
 */

namespace Threema\MsgApi\PublicKeyStores;

use Threema\Core\Exception;
use Threema\MsgApi\PublicKeyStore;

/**
 * Store the PublicKeys in a ascii file
 *
 * @package Threema\MsgApi\PublicKeyStores
 */
class File extends PublicKeyStore {
	/**
	 * @var string
	 */
	private $file;

	/**
	 * @param string $file Valid, read and writable file
	 * @throws Exception if the file does not exist or not writable
	 */
	public function __construct($file) {
		if(false === is_writable($file)) {
			throw new Exception('file '.$file.' does not exist or is not writable');
		}
		$this->file = $file;
	}

	/**
	 * return null if the public key not found in the store
	 * @param string $threemaId
	 * @return null|string
	 * @throws Exception
	 */
	function findPublicKey($threemaId) {

It is generally recommended to explicitly declare the visibility for methods.

		$storeHandle = fopen($this->file, 'r');
		if(false === $storeHandle) {
			throw new Exception('could not open file '.$this->file);
		}
		else {
			$threemaId = strtoupper($threemaId);
			$publicKey = null;
			while (!feof($storeHandle)) {
				$buffer = fgets($storeHandle, 4096);
				if(substr($buffer, 0, 8) == $threemaId) {
					$publicKey = str_replace("\n", '', substr($buffer, 8));
					continue;
				}
				// Process buffer here..
			}
			fclose($storeHandle);
			return $publicKey;
		}
	}

	/**
	 * save a public key
	 * @param string $threemaId
	 * @param string $publicKey
	 * @return bool
	 */
	function savePublicKey($threemaId, $publicKey) {

It is generally recommended to explicitly declare the visibility for methods.

		return file_put_contents($this->file, $threemaId.$publicKey."\n", FILE_APPEND) !== false;
	}

	/**
	 * Initialize a new File Public Key Store
	 * @param string $path the file will be created it it does not exist
	 * @return File
	 */
	public static function create($path) {
		if(false === file_exists($path)) {
			//touch
			touch($path);
		}

		return new File($path);
	}
}