Added some response header getter methods for convenience

Author: Martin Brecht-Precht

src/Response/AbstractResponse.php

@@ -5,6 +5,7 @@
 use Markenwerk\BasicHttpClient\Request\RequestInterface;
 use Markenwerk\BasicHttpClient\Response\Header\Header;
 use Markenwerk\BasicHttpClient\Response\Statistics\Statistics;
+use Markenwerk\BasicHttpClient\Util\HeaderNameUtil;
 
 /**
  * Class AbstractResponse
@@ -107,6 +108,32 @@ public function getHeaders()
 		return $this->headers;
 	}
 
+	/**
+	 * @param string $name
+	 * @return bool
+	 */
+	public function hasHeader($name)
+	{
+		return !is_null($this->getHeader($name));
+	}
+
+	/**
+	 * @param string $name
+	 * @return Header
+	 */
+	public function getHeader($name)
+	{
+		$headers = $this->getHeaders();
+		$headerNameUtil = new HeaderNameUtil();
+		$name = $headerNameUtil->normalizeHeaderName($name);
+		foreach ($headers as $header) {
+			if ($header->getNormalizedName() == $name) {
+				return $header;
+			}
+		}
+		return null;
+	}
+
 	/**
 	 * @return mixed
 	 */

src/Response/ResponseInterface.php

@@ -48,6 +48,18 @@ public function getStatusText();
 	 */
 	public function getHeaders();
 
+	/**
+	 * @param string $name
+	 * @return bool
+	 */
+	public function hasHeader($name);
+
+	/**
+	 * @param string $name
+	 * @return Header
+	 */
+	public function getHeader($name);
+
 	/**
 	 * @return string
 	 */