Authentication in iphone

Question

Hi Experts
I am Using a web service(deployed in ce server 7.3) in a iphone application ,the service need user authentication .
I am not able to authenticate .Can anyone suggest any method to solve the problem.
Thanks and Regards
Suresh

Answer 1

Hi Suresh,
I assume you are using a NSURLConnection to connect to the service? If that's the case you can use the code below as a guide.
- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge{
     NSLog(@"Entering didReceiveAuthenticationChallenge");
     NSInteger count = [challenge previousFailureCount];
    if(count >= 2){
          // This is the second time the authentication has failed, request review of username/password rather than use settings
          [connection release];
          UIAlertView *alert =  [[ UIAlertView alloc ] initWithTitle:@"Error" message:@"Please check username & password" delegate:nil cancelButtonTitle:@"OK"  otherButtonTitles:nil];
          [alert show];
          [alert release];
     } else {
          NSString *uName = @"Enter username here";
          NSString *password = @"Enter password here";
          NSURLCredential* credential = [[NSURLCredential alloc]initWithUser:uName
                                                                                  password:password
                                                                              persistence:NSURLCredentialPersistenceNone];
          [[challenge sender] useCredential:credential forAuthenticationChallenge:challenge];
          [credential release];          
     NSLog(@"Leaving didReceiveAuthenticationChallenge");
Edited by: Paul Aschmann on May 5, 2011 5:01 PM