Attempt to using Nakama as replacement of Low-Level ENet

2025-12-02 00:58:44 +08:00
parent b27b612989
commit ead155afed
74 changed files with 14205 additions and 23315 deletions
@@ -0,0 +1,112 @@
+// Copyright 2022 The Nakama Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using Nakama.TinyJson;
+using Godot;
+
+namespace Nakama {
+
+    /// <summary>
+    /// An Http adapter which uses Godot's HttpRequest node.
+    /// </summary>
+    /// <remarks>
+    /// Note Content-Type header is always set as 'application/json'.
+    /// </remarks>
+    public partial class GodotHttpAdapter : Node, IHttpAdapter {
+
+        /// <inheritdoc cref="IHttpAdapter.Logger"/>
+        public ILogger Logger { get; set; }
+
+        /// <inheritdoc cref="IHttpAdapter.TransientExceptionDelegate"/>
+        public TransientExceptionDelegate TransientExceptionDelegate => IsTransientException;
+
+        /// <inheritdoc cref="IHttpAdapter"/>
+        public async Task<string> SendAsync(string method, Uri uri, IDictionary<string, string> headers,
+            byte[] body, int timeout, CancellationToken? cancellationToken)
+        {
+            var req = new HttpRequest();
+            req.Timeout = timeout;
+
+            if (OS.GetName() != "HTML5") {
+                req.UseThreads = true;
+            }
+
+            var godot_method = HttpClient.Method.Get;
+            if (method == "POST") {
+                godot_method = HttpClient.Method.Post;
+            }
+            else if (method == "PUT") {
+                godot_method = HttpClient.Method.Put;
+            }
+            else if (method == "DELETE") {
+                godot_method = HttpClient.Method.Delete;
+            }
+            else if (method == "HEAD") {
+                godot_method = HttpClient.Method.Head;
+            }
+
+            var headers_array = new String[headers.Count + 1];
+            headers_array[0] = "Accept: application/json";
+            int index = 1;
+            foreach (var item in headers) {
+                headers_array[index] = item.Key + ": " + item.Value;
+                index++;
+            }
+
+            string body_string = body != null ? System.Text.Encoding.UTF8.GetString(body) : "";
+
+            AddChild(req);
+            req.Request(uri.ToString(), headers_array, godot_method, body_string);
+
+            Logger?.InfoFormat("Send: method='{0}', uri='{1}', body='{2}'", method, uri, body_string);
+
+            Variant[] resultObjects = await ToSignal(req, "request_completed");
+
+            HttpRequest.Result result = (HttpRequest.Result)(long)resultObjects[0];
+            long response_code = (long)resultObjects[1];
+            string response_body = System.Text.Encoding.UTF8.GetString((byte[])resultObjects[3]);
+
+            req.QueueFree();
+
+            Logger?.InfoFormat("Received: status={0}, contents='{1}'", response_code, response_body);
+
+            if (result == HttpRequest.Result.Success && response_code >= 200 && response_code <= 299) {
+                return response_body;
+            }
+
+            var decoded = response_body.FromJson<Dictionary<string, object>>();
+            string message = decoded.ContainsKey("message") ? decoded["message"].ToString() : string.Empty;
+            int grpcCode = decoded.ContainsKey("code") ? (int) decoded["code"] : -1;
+
+            var exception = new ApiResponseException(response_code, message, grpcCode);
+
+            if (decoded.ContainsKey("error"))
+            {
+                IHttpAdapterUtil.CopyResponseError(this, decoded["error"], exception);
+            }
+
+            throw exception;
+        }
+
+        private static bool IsTransientException(Exception e) {
+            return e is ApiResponseException apiException && (apiException.StatusCode >= 500 || apiException.StatusCode == -1);
+        }
+
+    }
+
+}