Initial commit

vendor/lcobucci/jwt/src/Signer/BaseSigner.php

@@ -0,0 +1,83 @@
+<?php
+/**
+ * This file is part of Lcobucci\JWT, a simple library to handle JWT and JWS
+ *
+ * @license http://opensource.org/licenses/BSD-3-Clause BSD-3-Clause
+ */
+
+namespace Lcobucci\JWT\Signer;
+
+use Lcobucci\JWT\Signature;
+use Lcobucci\JWT\Signer;
+
+/**
+ * Base class for signers
+ *
+ * @author Luís Otávio Cobucci Oblonczyk <lcobucci@gmail.com>
+ * @since 0.1.0
+ */
+abstract class BaseSigner implements Signer
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function modifyHeader(array &$headers)
+    {
+        $headers['alg'] = $this->getAlgorithmId();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function sign($payload, $key)
+    {
+        return new Signature($this->createHash($payload, $this->getKey($key)));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function verify($expected, $payload, $key)
+    {
+        return $this->doVerify($expected, $payload, $this->getKey($key));
+    }
+
+    /**
+     * @param Key|string $key
+     *
+     * @return Key
+     */
+    private function getKey($key)
+    {
+        if (is_string($key)) {
+            $key = new Key($key);
+        }
+
+        return $key;
+    }
+
+    /**
+     * Creates a hash with the given data
+     *
+     * @internal
+     *
+     * @param string $payload
+     * @param Key $key
+     *
+     * @return string
+     */
+    abstract public function createHash($payload, Key $key);
+
+    /**
+     * Performs the signature verification
+     *
+     * @internal
+     *
+     * @param string $expected
+     * @param string $payload
+     * @param Key $key
+     *
+     * @return boolean
+     */
+    abstract public function doVerify($expected, $payload, Key $key);
+}