忽略Xamarin.Forms(PCL)中的SSL证书错误
有没有任何方法可以像这里描述的那样:但在Xamarin.Forms PCL应用程序中?我正在使用HttpClient连接到服务器。忽略Xamarin.Forms(PCL)中的SSL证书错误,ssl,xamarin.forms,Ssl,Xamarin.forms,有没有任何方法可以像这里描述的那样:但在Xamarin.Forms PCL应用程序中?我正在使用HttpClient连接到服务器。ServicePointManager未在PCL中定义,而是在特定于平台的类中定义 在Xamarin.iOS和Xamarin.Android中都有ServicePointManager,用法相同。您可以在平台项目的任何类中引用它。然而,目前还没有此类课程,而且似乎无法为Windows Phone应用程序提供此类课程 示例: private HttpClient _ht
ServicePointManager
未在PCL中定义,而是在特定于平台的类中定义
在Xamarin.iOS和Xamarin.Android中都有ServicePointManager
,用法相同。您可以在平台项目的任何类中引用它。然而,目前还没有此类课程,而且似乎无法为Windows Phone应用程序提供此类课程
示例:
private HttpClient _httpClient;
public HttpClient HttplicentAccount
{
get
{
_httpClient = _httpClient ?? new HttpClient
(
new HttpClientHandler()
{
ServerCertificateCustomValidationCallback = (sender, cert, chain, sslPolicyErrors) =>
{
//bypass
return true;
},
}
, false
)
{
BaseAddress = new Uri("YOUR_API_BASE_ADDRESS"),
};
// In case you need to send an auth token...
_httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Authorization", "YOUR_TOKEN");
return _httpClient;
}
}
//Xamarin.Android
公共类主活动:全局::Xamarin.Forms.Platform.Android.Forms应用活动
{
创建时受保护的覆盖无效(捆绑包)
{
//您可以在此处使用ServicePointManager
服务点管理器
.ServerCertificateValidationCallback+=
(发件人、证书、链、sslPolicyErrors)=>真;
base.OnCreate(bundle);
全局::Xamarin.Forms.Forms.Init(这个,bundle);
加载应用程序(新应用程序());
}
}
//沙马林
公共部分类AppDelegate:global::Xamarin.Forms.Platform.iOS.FormsApplicationDelegate
{
公共覆盖bool FinishedLaunching(UIApplication应用程序、NSDictionary选项)
{
服务点管理器
.ServerCertificateValidationCallback+=
(发件人、证书、链、sslPolicyErrors)=>真;
全局::Xamarin.Forms.Forms.Init();
加载应用程序(新应用程序());
返回基地。完成发射(应用程序,选项);
}
}
如果您使用的是AndroidClientHandler
,则需要提供SSLSocketFactory
和禁用所有检查的主机名验证程序的自定义实现。要做到这一点,您需要子类化AndroidClientHandler
,并重写适当的方法
internal class BypassHostnameVerifier : Java.Lang.Object, IHostnameVerifier
{
public bool Verify(string hostname, ISSLSession session)
{
return true;
}
}
internal class BypassSslValidationClientHandler : AndroidClientHandler
{
protected override SSLSocketFactory ConfigureCustomSSLSocketFactory(HttpsURLConnection connection)
{
return SSLCertificateSocketFactory.GetInsecure(1000, null);
}
protected override IHostnameVerifier GetSSLHostnameVerifier(HttpsURLConnection connection)
{
return new BypassHostnameVerifier();
}
}
然后
var handler = new BypassSslValidationClientHandler();
var httpClient = new System.Net.Http.HttpClient(handler);
我遇到了这个问题,但有一个稍微不同的错误消息:
Ssl error:1000007d:SSL routines:OPENSSL_internal:CERTIFICATE_VERIFY_FAILED
at /Users/builder/jenkins/workspace/archive-mono/2019-02/android/release/external/boringssl/ssl/handshake_client.c:1132
我在OnCreate(MainActivity.cs)
中修复了它:
这是Android的修复程序,将相同的代码放入iOS的FinishedLaunching(AppDelegate.cs)
中也应该可以使用。使用Xamarin.Forms上的唯一代码,实例化一个HttpClientHandler
示例:
private HttpClient _httpClient;
public HttpClient HttplicentAccount
{
get
{
_httpClient = _httpClient ?? new HttpClient
(
new HttpClientHandler()
{
ServerCertificateCustomValidationCallback = (sender, cert, chain, sslPolicyErrors) =>
{
//bypass
return true;
},
}
, false
)
{
BaseAddress = new Uri("YOUR_API_BASE_ADDRESS"),
};
// In case you need to send an auth token...
_httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Authorization", "YOUR_TOKEN");
return _httpClient;
}
}
- 将这行代码放入MainActivity.cs中的OnCreate中: System.Net.ServicePointManager.ServerCertificateValidationCallback+=(发件人、证书、链、sslPolicyErrors)=>true李>
protected override void OnCreate(Bundle savedInstanceState)
{
// to bypass ssl
System.Net.ServicePointManager.ServerCertificateValidationCallback += (sender, cert, chain, sslPolicyErrors) => true;
...
..
LoadApplication(new App());
}
- 现在更改var httpClient=new httpClient()
- to:var httpClient=newhttpclient(new System.Net.Http.HttpClientHandler())
- 不要忘记调用IP地址而不是使用localhost
public static HttpClient PreparedClient() {
HttpClientHandler handler = new HttpClientHandler();
handler.ServerCertificateCustomValidationCallback+= (sender, cert, chain,sslPolicyErrors) => { return true; };
HttpClient client = new HttpClient(handler); return client;
}
HttpClient client = PreparedClient();