From 4d55eba3a8ecde6a74145fd5e6482ab181dd94d1 Mon Sep 17 00:00:00 2001
From: Falcon <12919280+falconfly@user.noreply.gitee.com>
Date: Tue, 3 Dec 2024 14:15:49 +0800
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---
Falcon.SugarApi/FalconCors/CorsOptions.cs | 29 +++++++
.../FalconCors/CorsPolicyWallpaper.cs | 35 +++++++++
.../FalconCors/IServiceCollectionExtend.cs | 75 +++++++++++++++++++
Falcon.SugarApi/FalconCors/Readme.md | 7 ++
4 files changed, 146 insertions(+)
create mode 100644 Falcon.SugarApi/FalconCors/CorsOptions.cs
create mode 100644 Falcon.SugarApi/FalconCors/CorsPolicyWallpaper.cs
create mode 100644 Falcon.SugarApi/FalconCors/IServiceCollectionExtend.cs
create mode 100644 Falcon.SugarApi/FalconCors/Readme.md
diff --git a/Falcon.SugarApi/FalconCors/CorsOptions.cs b/Falcon.SugarApi/FalconCors/CorsOptions.cs
new file mode 100644
index 0000000..d6d502e
--- /dev/null
+++ b/Falcon.SugarApi/FalconCors/CorsOptions.cs
@@ -0,0 +1,29 @@
+namespace Falcon.SugarApi.FalconCors
+{
+ ///
+ /// 跨域请求cors参数
+ ///
+ public class CorsOptions
+ {
+ ///
+ /// 策略名
+ ///
+ public string? PolicyName { get; set; }
+ ///
+ /// 允许通过的方法。
+ ///
+ public string? Methods { get; set; }
+ ///
+ /// 允许通过的请求头
+ ///
+ public string? Headers { get; set; }
+ ///
+ /// 运行通过的源
+ ///
+ public string? Origins { get; set; }
+ ///
+ /// 允许携带凭据
+ ///
+ public bool? AllowCredentials { get; set; }
+ }
+}
diff --git a/Falcon.SugarApi/FalconCors/CorsPolicyWallpaper.cs b/Falcon.SugarApi/FalconCors/CorsPolicyWallpaper.cs
new file mode 100644
index 0000000..085c77b
--- /dev/null
+++ b/Falcon.SugarApi/FalconCors/CorsPolicyWallpaper.cs
@@ -0,0 +1,35 @@
+using Microsoft.AspNetCore.Cors.Infrastructure;
+
+namespace Falcon.SugarApi.FalconCors
+{
+ ///
+ /// CorsPolicy装饰器
+ ///
+ public class CorsPolicyWallpaper:CorsPolicy
+ {
+ ///
+ /// 通过一个CorsOptions构建CorsPolicy
+ ///
+ /// 跨域请求参数
+ public CorsPolicyWallpaper(CorsOptions? options) {
+ if(options == null) {
+ return;
+ }
+ if(options.AllowCredentials != null) {
+ this.SupportsCredentials = options.AllowCredentials.Value;
+ }
+ if(options.Headers.IsNotNullOrEmpty()) {
+ this.Headers.Clear();
+ options.Headers.SplitToStringList().ForEach(a => this.Headers.Add(a));
+ }
+ if(options.Methods.IsNotNullOrEmpty()) {
+ this.Methods.Clear();
+ options.Methods.SplitToStringList().ForEach(a => this.Methods.Add(a));
+ }
+ if(options.Origins.IsNotNullOrEmpty()) {
+ this.Origins.Clear();
+ options.Origins.SplitToStringList().ForEach(a => this.Origins.Add(a));
+ }
+ }
+ }
+}
diff --git a/Falcon.SugarApi/FalconCors/IServiceCollectionExtend.cs b/Falcon.SugarApi/FalconCors/IServiceCollectionExtend.cs
new file mode 100644
index 0000000..3be1feb
--- /dev/null
+++ b/Falcon.SugarApi/FalconCors/IServiceCollectionExtend.cs
@@ -0,0 +1,75 @@
+using Falcon.SugarApi.ApiClient;
+using Microsoft.AspNetCore.Cors.Infrastructure;
+using Microsoft.Extensions.DependencyInjection;
+using Npgsql.Replication.PgOutput.Messages;
+using System;
+
+namespace Falcon.SugarApi.FalconCors
+{
+ ///
+ /// 服务集合方法扩展
+ ///
+ public static class IServiceCollectionExtend
+ {
+ ///
+ /// 通过cors方式允许所有跨域源通过。Configure中通过app.UseCors("CorsPolicy")运行策略，或在控制器中通过EnableCors应用。
+ ///
+ /// 服务集合
+ /// 策略名称，默认CorsPolicy
+ /// 服务集合
+ public static IServiceCollection AllowAny(this IServiceCollection services,string policyName = "CorsPolicy") =>
+ services.AddCors(options => options.AddPolicy(policyName,builder => {
+ builder
+ .AllowAnyMethod()
+ //.WithMethods("GET","POST","OPTIONS")
+ .AllowAnyHeader()
+ .SetIsOriginAllowed(_ => true) // =AllowAnyOrigin()
+ .AllowCredentials();
+ }));
+
+ ///
+ /// 通过cors方式允许所有跨域源通过。Configure中通过app.UseCors("CorsPolicy")运行策略，或在控制器中通过EnableCors应用。
+ ///
+ /// 服务集合
+ /// 策略名称，默认CorsPolicy
+ /// 策略创建器
+ /// 服务集合
+ public static IServiceCollection AddCorsByAllowAny(
+ this IServiceCollection services,
+ string policyName,
+ Action? policyBuilder = null) {
+
+ if(policyName.IsNullOrEmpty()) {
+ throw new ArgumentNullException(nameof(policyName));
+ }
+ services.AddCors(options => options.AddPolicy(policyName,builder => {
+ builder
+ .AllowAnyMethod() //.WithMethods("GET","POST","OPTIONS")
+ .AllowAnyHeader()
+ .SetIsOriginAllowed(_ => true) // =AllowAnyOrigin()
+ .AllowCredentials();
+ policyBuilder?.Invoke(builder);
+ }));
+ return services;
+ }
+
+ ///
+ /// 添加跨域配置。
+ ///
+ /// 服务集合
+ /// 跨域配置选项
+ /// 服务集合
+ ///
+ public static IServiceCollection AddCoreWithOptions(this IServiceCollection services,CorsOptions options) {
+ if(options == null) {
+ throw new ArgumentNullException(nameof(options));
+ }
+ if(options.PolicyName.IsNullOrEmpty()) {
+ throw new ArgumentNullException("options.PolicyName");
+ }
+ var policy = new CorsOptions();
+ services.AddCors(op => op.AddPolicy(options.PolicyName,new CorsPolicyWallpaper(options)));
+ return services;
+ }
+ }
+}
diff --git a/Falcon.SugarApi/FalconCors/Readme.md b/Falcon.SugarApi/FalconCors/Readme.md
new file mode 100644
index 0000000..1526ede
--- /dev/null
+++ b/Falcon.SugarApi/FalconCors/Readme.md
@@ -0,0 +1,7 @@
+## cors源认证
+
+组件可以通过注册自己的cors源认证方法来实现访问的控制。
+
+插件可以通过IServiceCollection.AddCoreWithOptions方法注册自己跨域请求策略。
+然后在控制器中使用EnableCorsAttribute特性标记特性使用该策略。
+如果不使用自己的策略，apiservice平台允许所有跨域请求。