ASP.NET Core Identity 及 Authentication 源代码

学习： https://www.cnblogs.com/jionsoft/p/12326788.html

https://github.com/dotnetcore 《ASP.N ET Core 运行原理解剖[5]:Authentication》

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Aspnet Core 的启动类 Startup 配置有下列代码：查看源代码 dotnet/aspnetcore，

以及官方的文档解释 https://docs.microsoft.com/zh-cn/aspnet/core/security/authentication/identity?view=aspnetcore-3.1&tabs=visual-studio

扩展方法定义：AddIdentity<TUser,TRole>(IServiceCollection) ，可以只有用户 AddIdentityCore<TUser>(IServiceCollection)，角色另加。

或 AddIdentity<TUser,TRole>(IServiceCollection, Action<IdentityOptions>) 或 AddIdentityCore<TUser>(IServiceCollection, Action<IdentityOptions>)

// AddIdentity 源代码： https://github.com/dotnet/aspnetcore/blob/v3.1.2/src/Identity/Extensions.Core/src/IdentityServiceCollectionExtensions.cs （扩展方法：AddIdentityCore<TUser> ）

另一个扩展（区别？）：https://github.com/dotnet/aspnetcore/blob/v3.1.2/src/Identity/Core/src/IdentityServiceCollectionExtensions.cs （扩展方法：AddIdentity<TUser, TRole> ）

services.AddIdentity<ApplicationUser, IdentityRole<Guid>>()
.AddRoles<IdentityRole<Guid>>()
.AddEntityFrameworkStores<ApplicationDbContext>()
.AddDefaultTokenProviders();

services.AddDefaultIdentity 是在 ASP.NET Core 2.1 中引入的。调用 AddDefaultIdentity 类似于调用以下内容：

AddIdentity （实际是：AddIdentityCore<TUser> (o =>{o.Stores.MaxLengthForKeys = 128;configureOptions?.Invoke(o);}) ）
AddDefaultUI
AddDefaultTokenProviders

AddDefaultIdentity 源。

https://github.com/dotnet/aspnetcore/tree/release/3.1/src/Identity/UI/src

https://github.com/dotnet/aspnetcore/tree/release/3.1/src/Identity/UI/src/Areas/Identity/Pages/V4

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