support server url

Author: mevdschee

src/Tqdev/PhpCrudApi/OpenApi/OpenApiBuilder.php

@@ -40,9 +40,22 @@ public function __construct(ReflectionService $reflection, $base)
         $this->openapi = new OpenApiDefinition($base);
     }
 
+    private function getServerUrl(): String
+    {
+        $protocol = @$_SERVER['HTTP_X_FORWARDED_PROTO'] ?: @$_SERVER['REQUEST_SCHEME'] ?: ((isset($_SERVER["HTTPS"]) && $_SERVER["HTTPS"] == "on") ? "https" : "http");
+        $port = @intval($_SERVER['HTTP_X_FORWARDED_PORT']) ?: @intval($_SERVER["SERVER_PORT"]) ?: (($protocol === 'https') ? 443 : 80);
+        $host = @explode(":", $_SERVER['HTTP_HOST'])[0] ?: @$_SERVER['SERVER_NAME'] ?: @$_SERVER['SERVER_ADDR'];
+        $port = ($protocol === 'https' && $port === 443) || ($protocol === 'http' && $port === 80) ? '' : ':' . $port;
+        $path = @trim(substr($_SERVER['REQUEST_URI'], 0, strpos($_SERVER['REQUEST_URI'], '/openapi')), '/');
+        return sprintf('%s://%s%s/%s', $protocol, $host, $port, $path);
+    }
+
     public function build(): OpenApiDefinition
     {
         $this->openapi->set("openapi", "3.0.0");
+        if (!$this->openapi->has("servers") && isset($_SERVER['REQUEST_URI'])) {
+            $this->openapi->set("servers|0|url", $this->getServerUrl());
+        }
         $tableNames = $this->reflection->getTableNames();
         foreach ($tableNames as $tableName) {
             $this->setPath($tableName);

src/Tqdev/PhpCrudApi/OpenApi/OpenApiDefinition.php

@@ -24,6 +24,20 @@ public function set(String $path, $value) /*: void*/
         $current = $value;
     }
 
+    public function has(String $path): bool
+    {
+        $parts = explode('|', trim($path, '|'));
+        $current = &$this->root;
+        while (count($parts) > 0) {
+            $part = array_shift($parts);
+            if (!isset($current[$part])) {
+                return false;
+            }
+            $current = &$current[$part];
+        }
+        return true;
+    }
+
     public function jsonSerialize()
     {
         return $this->root;