sync

linker.messenger.signin/args/SignInArgsMachineKey.cs

@@ -0,0 +1,73 @@
+using linker.libs;
+using linker.messenger.signin;
+using linker.messenger.signin.args;
+
+namespace linker.messenger.signin.args
+{
+    /// <summary>
+    /// 给登录加一个唯一ID的参数
+    /// </summary>
+    public sealed class SignInArgsMachineKeyClient : ISignInArgs
+    {
+        public async Task<string> Invoke(string host, Dictionary<string, string> args)
+        {
+            string machineKey = SystemIdHelper.GetSystemId();
+            if (LoggerHelper.Instance.LoggerLevel <= LoggerTypes.DEBUG)
+                LoggerHelper.Instance.Debug($"machine key :{machineKey}");
+            if (string.IsNullOrWhiteSpace(machineKey))
+            {
+                return $"get machine key fail";
+            }
+
+            args.TryAdd("machineKey", machineKey);
+
+            await Task.CompletedTask;
+
+            return string.Empty;
+        }
+
+        public async Task<string> Validate(SignInfo signInfo, SignCacheInfo cache)
+        {
+            await Task.CompletedTask;
+            return string.Empty;
+        }
+    }
+
+    /// <summary>
+    /// 验证登录唯一参数
+    /// </summary>
+    public sealed class SignInArgsMachineKeyServer : ISignInArgs
+    {
+        public async Task<string> Invoke(string host, Dictionary<string, string> args)
+        {
+            await Task.CompletedTask;
+            return string.Empty;
+        }
+
+        /// <summary>
+        /// 验证参数
+        /// </summary>
+        /// <param name="signInfo">新登录参数</param>
+        /// <param name="cache">之前的登录信息</param>
+        /// <returns></returns>
+        public async Task<string> Validate(SignInfo signInfo, SignCacheInfo cache)
+        {
+            //放宽条件，只有已经登录时不能再次登录
+            if (cache != null && cache.Connected)
+            {
+                signInfo.Args.TryGetValue("machineKey", out string keyNew);
+                cache.Args.TryGetValue("machineKey", out string keyOld);
+
+                //之前的登录有唯一编号的，则验证，唯一编号不一样，不允许登录
+                if (string.IsNullOrWhiteSpace(keyOld) == false && keyNew != keyOld)
+                {
+                    return $"your id 【{signInfo.MachineId}】 is already online, online machineName {cache.MachineName}";
+                }
+            }
+            await Task.CompletedTask;
+            return string.Empty;
+        }
+
+
+    }
+}