From 22c2f090e2dbcbb0dd34f53b388c1e8d95e6fe79 Mon Sep 17 00:00:00 2001
From: Marcel Pociot <m.pociot@gmail.com>
Date: Tue, 21 Dec 2021 15:50:28 +0100
Subject: [PATCH] Add WebHook connection callback

---
 .../Callbacks/WebHookConnectionCallback.php   | 31 +++++++++++++++++++
 config/expose.php                             |  8 +++++
 2 files changed, 39 insertions(+)
 create mode 100644 app/Client/Callbacks/WebHookConnectionCallback.php

diff --git a/app/Client/Callbacks/WebHookConnectionCallback.php b/app/Client/Callbacks/WebHookConnectionCallback.php
new file mode 100644
index 0000000..bf33141
--- /dev/null
+++ b/app/Client/Callbacks/WebHookConnectionCallback.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Client\Callbacks;
+
+use App\Server\Connections\ControlConnection;
+use Clue\React\Buzz\Browser;
+
+class WebHookConnectionCallback
+{
+    /** @var Browser  */
+    protected $browser;
+
+    public function __construct(Browser $browser)
+    {
+        $this->browser = $browser;
+    }
+
+    public function handle(ControlConnection $connection)
+    {
+        $this->browser->post(config('expose.admin.connection_callbacks.webhook.url'), [
+            'Content-Type' => 'application/json',
+            'Accept' => 'application/json',
+            'X-Signature' => $this->generateWebhookSigningSecret($connection),
+        ], json_encode($connection->toArray()));
+    }
+
+    protected function generateWebhookSigningSecret(ControlConnection $connection)
+    {
+        return hash_hmac('sha256', $connection->client_id, config('expose.admin.connection_callbacks.webhook.secret'));
+    }
+}
diff --git a/config/expose.php b/config/expose.php
index ae1637a..d64e115 100644
--- a/config/expose.php
+++ b/config/expose.php
@@ -306,10 +306,18 @@ return [
         |
         | This is a callback method that will be called when a new connection is
         | established.
+        | The \App\Client\Callbacks\WebHookConnectionCallback::class is included out of the box.
         |
         */
         'connection_callback' => null,
 
+        'connection_callbacks' => [
+            'webhook' => [
+                'url' => null,
+                'secret' => null,
+            ]
+        ],
+
         /*
         |--------------------------------------------------------------------------
         | Users