Updated mailgun plugin

1 files changed, 47 insertions, 0 deletions

diff --git a/inc/mailgun/php-http/message/src/Authentication/Chain.php b/inc/mailgun/php-http/message/src/Authentication/Chain.php
new file mode 100644
index 0000000..71002bb
--- /dev/null
+++ b/inc/mailgun/php-http/message/src/Authentication/Chain.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace Http\Message\Authentication;
+
+use Http\Message\Authentication;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * Authenticate a PSR-7 Request with a multiple authentication methods.
+ *
+ * @author Márk Sági-Kazár <mark.sagikazar@gmail.com>
+ */
+final class Chain implements Authentication
+{
+    /**
+     * @var Authentication[]
+     */
+    private $authenticationChain = [];
+
+    /**
+     * @param Authentication[] $authenticationChain
+     */
+    public function __construct(array $authenticationChain = [])
+    {
+        foreach ($authenticationChain as $authentication) {
+            if (!$authentication instanceof Authentication) {
+                throw new \InvalidArgumentException(
+                    'Members of the authentication chain must be of type Http\Message\Authentication'
+                );
+            }
+        }
+
+        $this->authenticationChain = $authenticationChain;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function authenticate(RequestInterface $request)
+    {
+        foreach ($this->authenticationChain as $authentication) {
+            $request = $authentication->authenticate($request);
+        }
+
+        return $request;
+    }
+}