Question

如果无法验证服务器证书（在我的情况下是自签名的），我试图取消NSURLAuthenticationChanllenge，通过弹出带有两个按钮的UIAlertView - ＆＃39; No＆＃39;并且＆＃39;是＆＃39;

当用户点击是时，我仍然继续，但是当用户点击否时，我取消它。这就是我这样做的方式。我正在使用UIAlertView的委托来捕获用户单击的按钮的索引。当我单击是时，它工作正常，但当您单击否时，我得到一个NSRangeException

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

if ([challenge.protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust])
{
    BOOL trusted;
    //Evaluate the cert here -- removed code to be brief

    if(trusted){
        NSURLCredential *credential = [NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust];
        [challenge.sender useCredential:credential forAuthenticationChallenge:challenge];
    }else{
        //define a block
        self.certProceedBlock = ^(NSInteger clickedButton) {
            if(clickedButton == 1){
                NSURLCredential *credential = [NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust];
                [challenge.sender useCredential:credential forAuthenticationChallenge:challenge];
            }else if(clickedButton == 0){
                [challenge.sender cancelAuthenticationChallenge:challenge]; //this fails with NSRangeException
            }
        };


        //pop up the Notification
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Unknown Certificate"
                                                        message:[NSString stringWithFormat:message, certificateSubjectName]
                                                       delegate:self
                                              cancelButtonTitle:@"No"
                                              otherButtonTitles:@"Yes", nil];
        [alert show];


    }
}

}

这是代表

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
if(self.certProceedBlock){
    self.certProceedBlock(buttonIndex);
}

}

错误是： *由于未捕获的异常终止应用＆＃39; NSRangeException＆＃39;，原因：＆＃39; * - [__ NSArrayI objectAtIndex：]：索引1超出边界[0 .. 0]＆＃39 ;

根据要求 - 这是完整的stackTrace

我试图添加堆栈跟踪的图像 - 但图像太小。这是文字。请复制到textEdit--它应该更好

[ NSArrayI objectAtIndex：]：索引1超出边界[0 .. 0]＆＃39; ***第一次抛出调用堆栈：（ 0 CoreFoundation 0x004e5946 __exceptionPreprocess + 182 1 libobjc.A.dylib 0x02bd2a97 objc_exception_throw + 44 2 CoreFoundation 0x003c8bd2 - [__ NSArrayI objectAtIndex：] + 210 3 MYCODE ** 0x0017d9e1 - [HttpUtils getAuthTokenExpiration：] + 145 4 MYCODE ** 0x0017dfb3 - [HttpUtils saveAuthTokenExpirationDate：] + 99 5 MYCODE ** 0x0017ed5a __68- [HttpUtils getToken：params：username：password：tokenCompletionBlock：] _ block_invoke + 218 6 MYCODE ** 0x001850ce - [HttpUtils连接：didFailWithError：] + 334 7 CFNetwork 0x0497d38e __67- [NSURLConnectionInternalConnection cancelAuthenticationChallenge：] _ block_invoke + 51 8 CFNetwork 0x04995879 __65- [NSURLConnectionInternal _withConnectionAndDelegate：onlyActive：] _ block_invoke + 83 9 CFNetwork 0x0497cdd9 - [NSURLConnectionInternalConnection invokeForDelegate：] + 145 10 CFNetwork 0x04995813 - [NSURLConnectionInternal _withConnectionAndDelegate：onlyActive：] + 189 11 CFNetwork 0x04995a10 - [NSURLConnectionInternal _withConnectionAndDelegate：] + 58 12 CFNetwork 0x0497d314 - [NSURLConnectionInternalConnection cancelAuthenticationChallenge：] + 384 13 CFNetwork 0x048c100d - [NSURLConnection（NSURLAuthenticationChallengeSender）cancelAuthenticationChallenge：] + 50 14 MYCODE ** 0x00184b82 __58- [HttpUtils connection：didReceiveAuthenticationChallenge：] _ block_invoke + 370 15 MYCODE ** 0x00184f52 - [HttpUtils alertView：clickedButtonAtIndex：] + 178 16 UIKit 0x0186960d - [UIAlertView _prepareToDismissForTappedIndex：] + 192 17 UIKit 0x01868fa9 __35- [UIAlertView _prepareAlertActions] _block_invoke50 + 56 18 UIKit 0x018618b5 - [UIAlertController _dismissAnimated：triggeringAction：triggeredByPopoverDimmingView：] + 72 19 UIKit 0x01861868 - [UIAlertController _dismissAnimated：triggeringAction：] + 56 20 UIKit 0x01861454 - [UIAlertController _actionViewTapped：] + 68 21 libobjc.A.dylib 0x02be8771 - [NSObject performSelector：withObject：] + 70 22 UIKit 0x01a4474c - [_ UIAlertControllerActionView _triggerSelect] + 60 23 UIKit 0x01a44607 - [_ UIAlertControllerActionView touchesEnded：withEvent：] + 187 24 UIKit 0x019e47b7 _UIGestureRecognizerUpdate + 13225 25 UIKit 0x015fb26b - [UIWindow _sendGesturesForEvent：] + 1356 26 UIKit 0x015fc0cf - [UIWindow sendEvent：] + 769 27 UIKit 0x015c1549 - [UIApplication sendEvent：] + 242 28 UIKit 0x015d137e _UIApplicationHandleEventFromQueueEvent + 20690 29 UIKit 0x015a5b19 _UIApplicationHandleEventQueue + 2206 30 CoreFoundation 0x004091df __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 15 31 CoreFoundation 0x003feced __CFRunLoopDoSources0 + 253 32 CoreFoundation 0x003fe248 __CFRunLoopRun + 952 33 CoreFoundation 0x003fdbcb CFRunLoopRunSpecific + 443 34 CoreFoundation 0x003fd9fb CFRunLoopRunInMode + 123 35 GraphicsServices 0x0697324f GSEventRunModal + 192 36 GraphicsServices 0x0697308c GSEventRun + 104 37 UIKit 0x015a98b6 UIApplicationMain + 1526 38 MYCODE ** 0x001f857d main + 141 39 libdyld.dylib 0x03349ac9 start + 1 ） libc ++ abi.dylib：以NSException类型的未捕获异常终止

**删除了我的应用名称并替换为字符串MYCODE

用户点击否后，cancelAuthenticationChallenge失败并显示NSRangeException

0 个答案: