From 7783aeb63ec08bed159942fb0df100cfc4e93d3c Mon Sep 17 00:00:00 2001
From: Daniel Weipert <code@drogueronin.de>
Date: Sun, 2 Jan 2022 02:49:54 +0100
Subject: Build config and check api key

---
 src/App.php | 50 +++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 45 insertions(+), 5 deletions(-)

(limited to 'src/App.php')

diff --git a/src/App.php b/src/App.php
index 20cec62..fcf2699 100644
--- a/src/App.php
+++ b/src/App.php
@@ -18,7 +18,7 @@ class App
     $response = new Response();
 
     $content = [
-      'data' => '',
+      'data' => [],
     ];
     $contentRoot = dirname(__DIR__) . '/content';
 
@@ -26,6 +26,19 @@ class App
     $path = $request->getPathInfo();
 
     try {
+      $config = $this->buildConfig($contentRoot . $path);
+
+      // check api key
+      $apiKey = $_GET['key'] ?? $_POST['key'] ?? null;
+      if (empty($apiKey)) {
+	$response->setStatusCode(Response::HTTP_BAD_REQUEST);
+	throw new \Exception('API key missing');
+      }
+      if (! in_array($apiKey, $config['api']['keys'])) {
+	$response->setStatusCode(Response::HTTP_UNAUTHORIZED);
+	throw new \Exception('API key does not match');
+      }
+
       // GET
       if ($method == 'GET')  {
 	if (str_ends_with($path, '/fields')) {
@@ -98,12 +111,12 @@ class App
   {
     $fields = Toml::parseFile($formPath . '/fields/_fields.toml')['field'] ?? [];
     foreach ($fields as $key => $field) {
-      if (empty($field['name'])) {
-	$field['name'] = $key;
+      if (! empty($field['file'])) {
+	$field = array_replace_recursive($field, Toml::parseFile($formPath . '/fields/' . $field['file']));
       }
 
-      if (! empty($field['file'])) {
-	$field = array_merge($field, Toml::parseFile($formPath . '/fields/' . $field['file']));
+      if (empty($field['name'])) {
+	$field['name'] = $key;
       }
 
       $fields[$key] = $field;
@@ -127,5 +140,32 @@ class App
 
     return $fields;
   }
+
+  /**
+   * @param string $formPath
+   */
+  public function buildConfig($formPath)
+  {
+    $config = [];
+    $currentFolder = $formPath;
+    while (true) {
+      $configFile = $currentFolder . '/config/config.toml';
+      if (file_exists($configFile)) {
+	$parsedConfig = Toml::parseFile($configFile);
+
+	$apiKeys = array_merge($parsedConfig['api']['keys'] ?? [], $config['api']['keys'] ?? []);
+	$config = array_replace_recursive($parsedConfig, $config);
+	$config['api']['keys'] = $apiKeys;
+      }
+
+      if (str_ends_with($currentFolder, '/content') || $currentFolder == '/') {
+	break;
+      }
+
+      $currentFolder = dirname($currentFolder);
+    }
+
+    return $config;
+  }
 }
 
-- 
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