From be8b4f3adeda328697d0028df59d04b3d80e00b3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jaime=20Pe=CC=81rez=20Crespo?= <jaime.perez@uninett.no>
Date: Wed, 17 Oct 2018 15:34:18 +0200
Subject: [PATCH] Add a type of Response that allows us to run a callback.
This allows us to use the router even with old code that won't return an actual Response object, but perform a redirection or print directly to the standard output.
---
lib/SimpleSAML/HTTP/RunnableResponse.php | 69 ++++++++++++++++++++++++
1 file changed, 69 insertions(+)
create mode 100644 lib/SimpleSAML/HTTP/RunnableResponse.php
diff --git a/lib/SimpleSAML/HTTP/RunnableResponse.php b/lib/SimpleSAML/HTTP/RunnableResponse.php
new file mode 100644
index 000000000..ab9fc6c5f
--- /dev/null
+++ b/lib/SimpleSAML/HTTP/RunnableResponse.php
@@ -0,0 +1,69 @@
+<?php
+
+namespace SimpleSAML\HTTP;
+
+use Symfony\Component\HttpFoundation\Response;
+
+/**
+ * Class modelling a response that consists on running some function.
+ *
+ * This is a helper class that allows us to have the new and the old architecture coexist. This way, classes and files
+ * that aren't PSR-7-aware can still be plugged into a PSR-7-compatible environment.
+ *
+ * @package SimpleSAML
+ */
+class RunnableResponse extends Response
+{
+ /** @var array */
+ protected $arguments;
+
+ /** @var callable */
+ protected $callable;
+
+
+ /**
+ * RunnableResponse constructor.
+ *
+ * @param callable $callable A callable that we should run as part of this response.
+ * @param array $args An array of arguments to be passed to the callable. Note that each element of the array
+ */
+ public function __construct(callable $callable, $args = [])
+ {
+ $this->arguments = $args;
+ $this->callable = $callable;
+ parent::__construct();
+ }
+
+
+ /**
+ * Get the callable for this response.
+ *
+ * @return callable
+ */
+ public function getCallable()
+ {
+ return $this->callable;
+ }
+
+
+ /**
+ * Get the arguments to the callable.
+ *
+ * @return array
+ */
+ public function getArguments()
+ {
+ return $this->arguments;
+ }
+
+
+ /**
+ * "Send" this response by actually running the callable.
+ *
+ * @return mixed
+ */
+ public function send()
+ {
+ return call_user_func_array($this->callable, $this->arguments);
+ }
+}
--
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