AFNetworking NTLM验证？ [英] AFNetworking NTLM Authentication?

问题描述

我敲我的头，试图让AFNetworking的工作，因为这是我的第一个应用程序，不得不处理客户机/服务器，我想从一个需要用户名/密码HTTPS服务器抓取JSON。我得到了它有点迷上了应用程序，但它一直抛出一个401错误，我看它是基本身份验证的问题。

我基本上采取了Twitter的例子​​来自AFNetworking，它适应了我的项目。在AFHTTPClient的子类中，我加入了initWithBaseURL另一条线，它仍然抛出的错误。我加入行是setAuthorizationHeaderWithUsername

   - （ID）initWithBaseURL：（NSURL *）网址{
自= [超级initWithBaseURL：URL]
如果（！个体经营）{
    回零;
}[个体经营registerHTTPOperationClass：[AFJSONRequestOperation类];//接受HTTP头;看到http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.1
[个体经营setDefaultHeader：@接受值：@应用程序/ JSON];
[个体经营setAuthorizationHeaderWithUsername：@名为myusername密码：@我的密码];返回自我;
}
 

解决方案

如果你想使用NTLM身份验证与AFNetworking你可以尝试以下方法：

AFNetworking通过提供基于块的响应的认证一般不挑战支持NTLM身份验证（或基本上任何认证方法）。

下面是一个code为例（假设操作是 AFHTT prequestOperation ， AFJSONRequestOperation 等）。在开始之前的操作设置身份验证的挑战块这样的：

  [运行setAuthenticationChallengeBlock：
 ^（NSURLConnection的*连接，NSURLAuthenticationChallenge *挑战）
{
   如果（[挑战protectionSpace]使用authenticationMethod] == NSURLAuthenticationMethodNTLM）
   {
      如果（[挑战previousFailureCount] 0）
      {
         //避免过多的验证尝试失败可能锁定用户
         [挑战发件人] cancelAuthenticationChallenge：挑战]
      }
      其他
      {
         [挑战发件人] useCredential：[NSURLCredential credentialWithUser：@用户名密码：@密码持久性：NSURLCredentialPersistenceForSession] forAuthenticationChallenge：挑战]
      }
   }
   其他
   {
      //如果需要，或取消这样的权威性验证比NTLM其他方式：
      [挑战发件人] cancelAuthenticationChallenge：挑战]
   }
}];
 

启动或排队的运作如常，而且应该做的伎俩。

这基本上是韦恩·哈特曼描述了在他的博客适用于AFNetworking。

I am banging my head trying to get AFNetworking to work since this is my first app that had to deal with Client/Server where I am trying to grab the JSON from a HTTPS server that requires a username/password. I got it somewhat hooked up to the app, but it keeps throwing a 401 Error which I looked it up to be Basic Authentication issue.

I basically took the twitter example from AFNetworking and adapted it to my project. In the subclass of the AFHTTPClient, I am adding another line in the initWithBaseURL and it still throws the error. The line I am adding is the setAuthorizationHeaderWithUsername

- (id)initWithBaseURL:(NSURL *)url {
self = [super initWithBaseURL:url];
if (!self) {
    return nil;
}

[self registerHTTPOperationClass:[AFJSONRequestOperation class]];

// Accept HTTP Header; see http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.1
[self setDefaultHeader:@"Accept" value:@"application/json"];
[self setAuthorizationHeaderWithUsername:@"myusername" password:@"my password"];

return self;
}

解决方案

If you're trying to use NTLM authentication with AFNetworking you could try the following:

AFNetworking does support NTLM authentication (or basically any authentication method) by providing a block-based response to authentication challenges in general.

Here's a code example (assuming operation is a AFHTTPRequestOperation, AFJSONRequestOperation etc.). Before starting the operation set the authentication challenge block like this:

[operation setAuthenticationChallengeBlock:
 ^( NSURLConnection* connection, NSURLAuthenticationChallenge* challenge )
{
   if( [[challenge protectionSpace] authenticationMethod] == NSURLAuthenticationMethodNTLM )
   {
      if( [challenge previousFailureCount] > 0 )
      {
         // Avoid too many failed authentication attempts which could lock out the user
         [[challenge sender] cancelAuthenticationChallenge:challenge];
      }
      else
      {
         [[challenge sender] useCredential:[NSURLCredential credentialWithUser:@"username" password:@"password" persistence:NSURLCredentialPersistenceForSession] forAuthenticationChallenge:challenge];
      }
   }
   else
   {
      // Authenticate in other ways than NTLM if desired or cancel the auth like this:
      [[challenge sender] cancelAuthenticationChallenge:challenge];
   }
}];

Start or enqueue the operation as usual and that should do the trick.

This is basically the method Wayne Hartman describes in his blog applied to AFNetworking.

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