HttpMessageHandlerFactory
具有生命周期管理和动态Web代理的HttpMessageHandler创建工厂
1 nuget包
https://www.nuget.org/packages/HttpMessageHandlerFactory/
2 使用示例
static async Task Main(string[] args)
{
var services = new ServiceCollection();
services.AddLogging(x => x.AddConsole());
services.AddHttpMessageHandlerFactory("App")
.AddHttpMessageHandler<AppHttpHandler>()
.SetHandlerLifetime(TimeSpan.FromMinutes(1d));
var serviceProvider = services.BuildServiceProvider();
var factory = serviceProvider.GetRequiredService<IHttpMessageHandlerFactory>();
var proxyUri = default(Uri);
var httpClient = factory.CreateClient("App", proxyUri);
var html = await httpClient.GetStringAsync("https://github.com/xljiulang/HttpMessageHandlerFactory/blob/master/README.md");
Console.WriteLine(html);
}
3 扩展项目
3.1 HttpMessageHandlerFactory.Connection[过于先进无法展示]
为HttpMessageHandlerFactory提供自定义连接的功能。
3.1.1 自定义域名解析
- 当无代理连接时,连接到自定义解析得到的IP
- 当使用http代理时,让代理服务器连接到自定义解析得到的IP
- 当使用socks代理时,让代理服务器连接到自定义解析得到的IP
services
.AddHttpMessageHandlerFactory("App")
.AddHostResolver<CustomHostResolver>();
sealed class CustomHostResolver : HostResolver
{
public override ValueTask<HostPort> ResolveAsync(DnsEndPoint endpoint, CancellationToken cancellationToken)
{
if (endpoint.Host == "www.baidu.com")
{
return ValueTask.FromResult(new HostPort("14.119.104.189", endpoint.Port));
}
return ValueTask.FromResult(new HostPort(endpoint.Host, endpoint.Port));
}
}
3.1.2 自定义ssl的sni
services
.AddHttpMessageHandlerFactory("App")
.AddSslSniProvider<CustomSslSniProvider>();
sealed class CustomSslSniProvider : SslSniProvider
{
public override ValueTask<string> GetSslSniAsync(string host, CancellationToken cancellationToken)
{
return ValueTask.FromResult(string.Empty);
}
public override bool RemoteCertificateValidationCallback(string host, X509Certificate? cert, X509Chain? chain, SslPolicyErrors errors)
{
return true;
}
}