feature(api): add more API functions such as upload

www/src/serve/api.php

@@ -1,13 +1,84 @@
 <?php
+header('Content-Type: application/json');
 
+use Spatie\YamlFrontMatter\YamlFrontMatter;
 
-if(preg_match('/^\/api\/posts(.*)$/', $REQUEST_PATH, $match)) {
+preg_match('/^\/api\/([^\/]*)(.*)/', $REQUEST_PATH, $match);
-    header('Content-Type: application/json');
+$API_FUNCTION = $match[1];
 
-    $post = $adapter->get_post($match[1]);
+switch($API_FUNCTION) {
+    case 'posts':     
+        $post = $adapter->get_post($match[2]);
 
-    echo $post->to_json($REQUEST_QUERY);
+        if(!isset($post)) {
+            echo json_encode([
+                'found' => false,
+                'status' => 404
+            ]);
+        } else {
+            echo $post->to_json($REQUEST_QUERY);
+        }
+        break;
 
+    case 'upload':
+        if(!access_can_upload()) {
+            http_response_code(401);
+            echo json_encode([
+                'status' => '401 Unauthorized'
+            ]);
+
+            die();
+        }
+
+        if( !isset($_POST['path']) or 
+            !isset($_FILES['file'])) {
+            echo json_encode([
+                'status' => 'Missing paramters (must POST path and file!)'
+            ]);
+            die();
+        }
+        
+        $file_path = sanitize_post_path($_POST['path']);
+
+        $physical_file_path = $SITE_CONFIG['upload']['file_path'] . $file_path;
+
+        $file_dir = dirname($physical_file_path);
+
+        if(!is_dir($file_dir)) {
+            mkdir(dirname($physical_file_path), recursive: true);
+        }
+
+        move_uploaded_file($_FILES['file']['tmp_name'], $physical_file_path);
+
+        $file_ext = pathinfo($file_path, PATHINFO_EXTENSION);
+
+        if($file_ext == 'md') {
+            
+            $is_directory = false;
+            $original_file_path = $file_path;
+
+            if(basename($file_path) == 'README.md') {
+                $is_directory = true;
+                $file_path = dirname($file_path);
+            }
+
+            $post_matter = YamlFrontMatter::parse(file_get_contents($physical_file_path));
+            
+            $post_data = $post_matter->matter();
+
+            $post_data['path'] = $file_path;
+            $post_data['markdown'] = $post_matter->body();
+
+            if($is_directory) {
+                $post_data['base'] ??= $original_file_path;
+                $post_data['type'] ??= 'directory';
+            }
+
+            $sql_adapter->set_postdata($post_data);
+        }
+
+        break;
 }
 
+
 ?>