From cdaf0dfd2fee124740182451e552ba4bb7199ce1 Mon Sep 17 00:00:00 2001
From: PopSlime <popslime@qq.com>
Date: Sat, 21 Jun 2025 02:23:34 +0800
Subject: [PATCH] fix: Fix update checker by adding user agent

---
 Assets/Cryville/Crtr/Game.cs                  | 29 +++++++++++++++++++
 Assets/Cryville/Crtr/Network/UpdateChecker.cs |  4 +--
 2 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/Assets/Cryville/Crtr/Game.cs b/Assets/Cryville/Crtr/Game.cs
index 9366c61..8dbfe35 100644
--- a/Assets/Cryville/Crtr/Game.cs
+++ b/Assets/Cryville/Crtr/Game.cs
@@ -19,6 +19,7 @@ using Newtonsoft.Json;
 using System;
 using System.Globalization;
 using System.IO;
+using System.Runtime.InteropServices;
 using System.Text;
 using System.Xml;
 using System.Xml.Linq;
@@ -47,6 +48,8 @@ namespace Cryville.Crtr {
 		static FileStream _logFileStream;
 		static StreamLoggerListener _logWriter;
 
+		public static string UnityUserAgent { get; private set; }
+
 		static bool _init;
 		public static void Init() {
 			if (_init) return;
@@ -177,6 +180,32 @@ namespace Cryville.Crtr {
 			Settings.Default.LastRunVersion = Application.version;
 			Settings.Default.Save();
 
+#if UNITY_EDITOR_WIN || UNITY_STANDALONE_WIN
+			UnityUserAgent = string.Format(
+				CultureInfo.InvariantCulture,
+				"CosmoResona/{0} (Windows NT {1}; {2})",
+				Application.version,
+				Environment.OSVersion.Version,
+				RuntimeInformation.OSArchitecture.ToString().ToLowerInvariant()
+			);
+#elif UNITY_ANDROID
+			var androidClassBuildVersion = AndroidJNI.FindClass("android/os/Build$VERSION");
+			var androidRelease = AndroidJNI.GetStaticStringField(androidClassBuildVersion, AndroidJNI.GetStaticFieldID(androidClassBuildVersion, "RELEASE", "Ljava/lang/String;"));
+			var androidClassBuild = AndroidJNI.FindClass("android/os/Build");
+			var androidModel = AndroidJNI.GetStaticStringField(androidClassBuild, AndroidJNI.GetStaticFieldID(androidClassBuild, "MODEL", "Ljava/lang/String;"));
+			var androidID = AndroidJNI.GetStaticStringField(androidClassBuild, AndroidJNI.GetStaticFieldID(androidClassBuild, "ID", "Ljava/lang/String;"));
+			UnityUserAgent = string.Format(
+				CultureInfo.InvariantCulture,
+				"CosmoResona/{0} (Linux; Android {1}; {2} Build/{3})",
+				Application.version,
+				androidRelease ?? "12.0.99",
+				androidModel,
+				androidID
+			);
+#else
+#error No Unity User Agent
+#endif
+
 			MainLogger.Log(1, "UI", "Initializing font manager");
 			foreach (var res in Resources.LoadAll<TextAsset>("cldr/common/validity")) {
 				IdValidity.Load(LoadXmlDocument(res));
diff --git a/Assets/Cryville/Crtr/Network/UpdateChecker.cs b/Assets/Cryville/Crtr/Network/UpdateChecker.cs
index 1aafab8..2b1fc73 100644
--- a/Assets/Cryville/Crtr/Network/UpdateChecker.cs
+++ b/Assets/Cryville/Crtr/Network/UpdateChecker.cs
@@ -47,7 +47,7 @@ namespace Cryville.Crtr.Network {
 		}
 		void CheckVersion() {
 			using (var client = new HttpClient()) {
-				client.Connect();
+				client.DefaultRequestHeaders.UserAgent.ParseAdd(Game.UnityUserAgent);
 				using var response = client.GetAsync(new Uri(BaseUri, "versions")).Result;
 				var data = response.Content.ReadAsStringAsync().Result;
 				_versions = JsonConvert.DeserializeObject<List<VersionInfo>>(data, Game.GlobalJsonSerializerSettings);
@@ -132,7 +132,7 @@ namespace Cryville.Crtr.Network {
 		void Download(VersionResourceInfo diff, string path) {
 			var uri = new Uri(diff.url);
 			using var client = new HttpClient();
-			client.Connect();
+			client.DefaultRequestHeaders.UserAgent.ParseAdd(Game.UnityUserAgent);
 			using var response = client.GetAsync(uri).Result;
 			using var stream = response.Content.ReadAsStreamAsync().Result;
 			using var file = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.None);