如何在UIWebView中显示身份验证质询？

Question

我正在尝试通过UIWebView访问安全的网站。当我通过野生动物园访问它时，我遇到了身份验证挑战，但是在应用程序的UIWebView中没有出现相同的问题。如何使其显示？任何指针，示例代码或链接都将非常有帮助。非常感谢。

Answer 1

实际上，这非常容易...我确定您可以在显示auth挑战委托时（或在加载URL之前，如果您确定所击中的URL会提示您输入auth登录信息，则只需显示UIAlertView）即可。 ）。无论如何，诀窍是创建自己的方法NSURLConnection，我做一些逻辑来保存是否使用了auth委托。

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType;

{

    NSLog(@"Did start loading: %@ auth:%d", [[request URL] absoluteString], _authed);

    if (!_authed) {

        _authed = NO;

        /* pretty sure i'm leaking here, leave me alone... i just happen to leak sometimes */

        [[NSURLConnection alloc] initWithRequest:request delegate:self];

        return NO;

    }

    return YES;

}

- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge;

{

    NSLog(@"got auth challange");

    if ([challenge previousFailureCount] == 0) {

        _authed = YES;

        /* SET YOUR credentials, i'm just hard coding them in, tweak as necessary */

        [[challenge sender] useCredential:[NSURLCredential credentialWithUser:@"username" password:@"password" persistence:NSURLCredentialPersistencePermanent] forAuthenticationChallenge:challenge];

    } else {

        [[challenge sender] cancelAuthenticationChallenge:challenge];

    }

}

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response;

{

    NSLog(@"received response via nsurlconnection");

    /** THIS IS WHERE YOU SET MAKE THE NEW REQUEST TO UIWebView, which will use the new saved auth info **/

    NSURLRequest *urlRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:]];

    [_webView loadRequest:urlRequest];

}

- (BOOL)connectionShouldUseCredentialStorage:(NSURLConnection *)connection;

{

    return NO;

}

Answer 2

如您所知，UIWebView不会提供与服务器通信的机会。我以这种方式解决了这个问题：在UIWebView的委托方法shouldStartLoadWithRequest中，我发起了另一个与NSURLConnection的连接，而在委托NSURLConnection的方法中，didReceiveAuthenticationChallenge已经处理了来自服务器的挑战。在方法didReceiveResponse中（如果挑战来了），然后再次在同一UIWebView中加载相同的URL（挑战已被处理：）。不要忘记在didReceiveResponse中取消连接，否则它将使流量增加一倍。