handle RSA key passphrase

src/CryptKey.php

@@ -0,0 +1,62 @@
+<?php
+/**
+ * Cryptography key holder.
+ *
+ * @author      Julián Gutiérrez <juliangut@gmail.com>
+ * @copyright   Copyright (c) Alex Bilbie
+ * @license     http://mit-license.org/
+ *
+ * @link        https://github.com/thephpleague/oauth2-server
+ */
+namespace League\OAuth2\Server;
+
+class CryptKey
+{
+    /**
+     * @var string
+     */
+    protected $keyPath;
+
+    /**
+     * @var string
+     */
+    protected $passPhrase;
+
+    /**
+     * @param string      $keyPath
+     * @param null|string $passPhrase
+     */
+    public function __construct($keyPath, $passPhrase = null)
+    {
+        if (strpos($keyPath, 'file://') !== 0) {
+            $keyPath = 'file://' . $keyPath;
+        }
+
+        if (!file_exists($keyPath) || !is_readable($keyPath)) {
+            throw new \LogicException(sprintf('Key path "%s" does not exist or is not readable', $keyPath));
+        }
+
+        $this->keyPath = $keyPath;
+        $this->passPhrase = $passPhrase;
+    }
+
+    /**
+     * Retrieve key path.
+     *
+     * @return string
+     */
+    public function getKeyPath()
+    {
+        return $this->keyPath;
+    }
+
+    /**
+     * Retrieve key pass phrase.
+     *
+     * @return null|string
+     */
+    public function getPassPhrase()
+    {
+        return $this->passPhrase;
+    }
+}