Fix POST argument parsing

index.php

@@ -44,7 +44,10 @@ $router->post("/endpoint", function (Request $req, Response $response) use ($gat
     $endpoint = new Endpoint(HttpClient::create(), $gateway);
 
     try {
-        $endpoint->receiveWebmention($source, $target);
+        $id = $endpoint->receiveWebmention($source, $target);
+
+        $response->header('Location', "/webmention/" . $id);
+        $response->status_code = StatusCode::Created;
     } catch (InvalidUrlException) {
         $response->status_code = StatusCode::BadRequest;
         return "Source and target must be valid URLs";
@@ -59,10 +62,10 @@ $router->post("/endpoint", function (Request $req, Response $response) use ($gat
         return "Source does not mention the target";
     }
 
-    $response->status_code = StatusCode::Created;
-    return;
 });
 
+$router->get('/webmention/(\d+)', [$apiController, "get"]);
+
 $router->get('/', fn($req, $res) => "<h1>Webmention server</h1>");
 
 $router->get('/api/webmentions', [$apiController, "list"]);

requests.http

@@ -0,0 +1,8 @@
+POST http://localhost:8080/endpoint
+Content-Type: application/x-www-form-urlencoded
+
+source = https://rknight.me/blog/generating-and-caching-open-graph-images-with-eleventy/ &
+target = https://lewisdale.dev/post/adding-statically-generated-open-graph-images/
+
+
+###

src/Endpoint.php

@@ -23,7 +23,7 @@ class Endpoint
     {
     }
 
-    public function receiveWebmention(string $source, string $target): void
+    public function receiveWebmention(string $source, string $target): int
     {
         // Validate that both source and target are actual domains
         if (!Url::validateUrl($source) || !Url::validateUrl($target)) {
@@ -51,7 +51,7 @@ class Endpoint
             $author = $this->parseAuthor($container);
 
             $webmention = new Webmention(null, $target, $source, $type, $content, $author);
-            $this->gateway->save($webmention);
+            return $this->gateway->save($webmention);
         } else {
             throw new SourceNotFoundException();
         }
@@ -69,7 +69,7 @@ class Endpoint
 
     private function parseMentionType(string $target, Crawler $document): MentionType
     {
-        $class = $document->filter('a[href="' . $target . '"]')->attr('class');
+        $class = $document->filter('a[href="' . $target . '"]')->attr('class') ?? '';
 
         if (str_contains($class, "u-like-of")) {
             return MentionType::Like;

src/Router/Response.php

@@ -3,6 +3,7 @@
 namespace Lewisdale\Webmentions\Router;
 
 class Response {
+    private array $headers = [];
     public StatusCode $status_code = StatusCode::Ok;
     public string $body = "";
 
@@ -10,6 +11,18 @@ class Response {
     {
     }
 
+    private function normalize_header_name(string $name): string
+    {
+        return ucwords(strtolower($name));
+    }
+
+    public function header(string $name, string $value): void
+    {
+        $normalised = $this->normalize_header_name($name);
+        echo $normalised;
+        $this->headers[$this->normalize_header_name($name)] = $value;
+    }
+
     public function json(mixed $obj): string {
         return json_encode($obj);
     }
@@ -26,6 +39,12 @@ class Response {
         die();
     }
 
+    public function write_headers() {
+        foreach ($this->headers as $header => $value) {
+          header("$header: $value");
+        }
+    }
+
     // /**
     //  * Render a template, with an array of values to provide to the template
     //  */

src/Router/Router.php

@@ -106,7 +106,7 @@ class Router
     private function respond(Response $response)
     {
         http_response_code($response->status_code->code());
-
+        $response->write_headers();
         echo $response->body;
     }
 
@@ -115,7 +115,7 @@ class Router
         $uri = $_SERVER['REQUEST_URI'];
         $method = Method::from($_SERVER['REQUEST_METHOD']);
         $query = $_GET;
-        $post = $_POST;
+        $post = json_decode(file_get_contents('php://input'), true);
 
         return new Request($params, $uri, $method, $post, $query, array_change_key_case(getallheaders(), CASE_LOWER));
     }