feat(identity): Add anonymous sessions

Author: colinin

aspnet-core/modules/identity/LINGYUN.Abp.Identity.Session/LINGYUN/Abp/Identity/Session/AllowAnonymousIdentitySessionChecker.cs

@@ -0,0 +1,12 @@
+using System.Security.Claims;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace LINGYUN.Abp.Identity.Session;
+public class AllowAnonymousIdentitySessionChecker : IIdentitySessionChecker
+{
+    public Task<bool> ValidateSessionAsync(ClaimsPrincipal claimsPrincipal, CancellationToken cancellationToken = default)
+    {
+        return Task.FromResult(true);
+    }
+}

aspnet-core/modules/identity/LINGYUN.Abp.Identity.Session/Microsoft/Extensions/DependencyInjection/IdentitySessionServiceCollectionExtensions.cs

@@ -0,0 +1,22 @@
+using LINGYUN.Abp.Identity.Session;
+using Microsoft.Extensions.DependencyInjection.Extensions;
+
+namespace Microsoft.Extensions.DependencyInjection;
+public static class IdentitySessionServiceCollectionExtensions
+{
+    /// <summary>
+    /// 允许任意会话
+    /// </summary>
+    /// <remarks>
+    /// 某些场景下可能缓存配置不同,可不检查会话缓存
+    /// </remarks>
+    /// <param name="services"></param>
+    /// <returns></returns>
+    public static IServiceCollection AddAlwaysAllowSession(this IServiceCollection services)
+    {
+        services.Replace(
+            ServiceDescriptor.Singleton<IIdentitySessionChecker, AllowAnonymousIdentitySessionChecker>());
+
+        return services;
+    }
+}