如何在UIWebView中显示身份验证质询？ [英] How to display the Authentication Challenge in UIWebView?

问题描述

我试图通过UIWebView访问一个安全的网站。当我通过safari访问它时，我得到了一个身份验证挑战，但是我的UIWebView中没有出现同样的问题。如何使其显示？

I am trying to access a secure website through UIWebView. When I access it through safari, i get an authentication challenge but the same does not appear in my UIWebView in the application. How can I make it appear?

任何指针，示例代码或链接都将非常有用。非常感谢。

Any pointers, sample code or links will be very helpful. Thanks a lot.

推荐答案

这实际上非常简单......我确信你可以在显示auth挑战代表时显示UIAlertView（或者在加载URL之前，如果您确定您正在点击的URL将提示输入auth登录信息）。无论如何，诀窍是创建你自己的 NSURLConnection ，我做了一些逻辑来保存是否使用了auth委托。

It's actually super easy... I'm sure you can just show a UIAlertView when the auth challenge delegate is shown (or prior to loading the URL, if you know for sure that the URL you're hitting will prompt for auth login info). Anyways, the trick is to create your own NSURLConnection and I do some logic to save whether the auth delegate has been used.

- (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;
}

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