initial commit

1 files changed, 111 insertions, 0 deletions

diff --git a/src/Server.php b/src/Server.php
new file mode 100644
index 0000000..46c7dca
--- /dev/null
+++ b/src/Server.php
@@ -0,0 +1,111 @@
+<?php
+
+namespace GeminiFoundation;
+
+class Server
+{
+  protected string $hostname;
+
+  protected array $certificate = [
+    'file' => null,
+    'key' => null,
+    'passphrase' => null,
+  ];
+
+  protected array $requestHandlers = [];
+
+  /**
+   * @param array $certificate
+   * @param string $hostname
+   */
+  public function __construct(
+    array $certificate,
+    string $hostname = 'localhost'
+  )
+  {
+    $this->certificate = $certificate;
+    $this->hostname = $hostname;
+  }
+
+  public function setCertificate(string $certificateFile, string $keyFile, string $passphrase = ''): static
+  {
+    $this->certificate = [
+      'file' => $certificateFile,
+      'key' => $keyFile,
+      'passphrase' => $passphrase,
+    ];
+
+    return $this;
+  }
+
+  public function onRequest(RequestHandlerInterface|callable $callable): static
+  {
+    $this->requestHandlers[] = $callable;
+
+    return $this;
+  }
+
+  public function listen(int $port = 1965): void
+  {
+    $context = stream_context_create(options: [
+      'ssl' => [
+        'local_cert' => $this->certificate['file'],
+        'local_pk' => $this->certificate['key'],
+        'passphrase' => $this->certificate['passphrase'],
+
+        'allow_self_signed' => true,
+        'verify_peer' => false,
+      ],
+    ]);
+
+    $socket = stream_socket_server(
+      address: "tls://{$this->hostname}:{$port}",
+      context: $context
+    );
+
+    $connections = [];
+
+    while (true) {
+      $connection = stream_socket_accept(
+        socket: $socket,
+        timeout: empty($connections) ? -1 : 0,
+        peer_name: $peer
+      );
+
+      if ($connection) {
+        $connections[$peer] = $connection;
+      }
+
+      if (count($connections) == 0) {
+        continue;
+      }
+
+      $streams = stream_select(
+        read: $connections,
+        write: $write,
+        except: $except,
+        seconds: 5
+      );
+
+      if ($streams) {
+        foreach ($connections as $peer => $connection) {
+          if (feof($connection)) {
+            fclose($connection);
+            unset($connections[$peer]);
+            continue;
+          }
+
+          $request = Request::fromResource($connection);
+          $response = new Response();
+          foreach ($this->requestHandlers as $requestHandler) {
+            $response = $requestHandler($response, $request);
+          }
+          $response->send($connection);
+
+          fclose($connection);
+          unset($connections[$peer]);
+        }
+      }
+    }
+  }
+}