Ios 当我们尝试使用NSURLConnection与SSL连接以获取不受信任的证书时，是否有方法让用户选择是否信任该站点？

堆栈上也存在类似的溢出

这是我的代码，它将接受不受信任的服务器证书

- (BOOL)connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)space
{
    //We can always attempt to authenticate...
    return YES;
}

- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge
{
    if ([[challenge protectionSpace] authenticationMethod] == NSURLAuthenticationMethodServerTrust) {
        [[challenge sender] useCredential:[NSURLCredential credentialForTrust:[[challenge protectionSpace] serverTrust]] forAuthenticationChallenge:challenge];
    } else {
      // Other situation
    }
}

但是，我想提供一个alter视图，让用户选择是否信任该站点

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:
[[challenge protectionSpace]host] message:@"Do you trust this site?" 
delegate:self cancelButtonTitle:@"No" 
otherButtonTitles:@"Yes", @"Just once", nil];

[alert show];

---

我该怎么做呢？

例如，您可以将质询对象保存到属性中，然后像这样实现alertView:ClickedButtonIndex:delegate方法（这用于“信任一次”）：

如果希望始终信任，则需要执行一些更复杂的操作来保存和比较服务器证书数据。或者通过保存服务器URL应该被信任的方式来简化它和不安全，这使得你容易受到中间人攻击。

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
    if(buttonIndex == alertView.cancelButtonIndex)
    {
        [[self.challenge sender] cancelAuthenticationChallenge:self.challenge];
    }
    else
    {
        [self.challenge.sender useCredential:[NSURLCredential credentialForTrust:self.challenge.protectionSpace.serverTrust] forAuthenticationChallenge:self.challenge];
        self.challenge = nil;
    }
}