Web service request in swift corresponding to java code

Question

Given below is my java code which is a part of a sample webservice:

@Override
    public void filter(ContainerRequestContext requestContext)
    {
        Method method = resourceInfo.getResourceMethod();
        //Access allowed for all
        if( ! method.isAnnotationPresent(PermitAll.class))
        {
            //Access denied for all
            if(method.isAnnotationPresent(DenyAll.class))
            {
                requestContext.abortWith(ACCESS_FORBIDDEN);
                return;
            }

            //Get request headers
            final MultivaluedMap<String, String> headers = requestContext.getHeaders();

            //Fetch authorization header
            final List<String> authorization = headers.get(AUTHORIZATION_PROPERTY);

            //If no authorization information present; block access
            if(authorization == null || authorization.isEmpty())
            {
                requestContext.abortWith(ACCESS_DENIED);
                return;
            }

            //Get encoded username and password
            final String encodedUserPassword = authorization.get(0).replaceFirst(AUTHENTICATION_SCHEME + " ", "");

            //Decode username and password
            String usernameAndPassword = new String(Base64.decode(encodedUserPassword.getBytes()));;

            //Split username and password tokens
            final StringTokenizer tokenizer = new StringTokenizer(usernameAndPassword, ":");
            final String username = tokenizer.nextToken();
            final String password = tokenizer.nextToken();

            //Verifying Username and password
            System.out.println(username);
            System.out.println(password);

          //Is user valid?
            if( ! isUserAllowed(username, password))
            {
                requestContext.abortWith(ACCESS_DENIED);
                return;
            }
        }
    }

And my swift code to get the response is :

let headers = [
        "authorization": "Basic YWRtaW46YWRtaW4=",
        "cache-control": "no-cache"
    ]
    let parameters = ["username" : "admin","password" : "admin"]


    let request = NSMutableURLRequest(URL: NSURL(string: "http://192.168.10.229:8080/JerseyDemos/rest/employees")!,
                                      cachePolicy: .UseProtocolCachePolicy,
                                      timeoutInterval: 60.0)
    request.HTTPMethod = "GET"
    //request.allHTTPHeaderFields = headers
    do {
        request.HTTPBody = try! NSJSONSerialization.dataWithJSONObject(parameters, options: [])
    }
    request.addValue("application/json", forHTTPHeaderField: "Content-Type")
    request.addValue("application/json", forHTTPHeaderField: "Accept")
    let session = NSURLSession.sharedSession()
    let dataTask = session.dataTaskWithRequest(request, completionHandler: { (data, response, error) -> Void in
        if (error != nil) {
            print(error)
        } else {
            let httpResponse = response as? NSHTTPURLResponse
            print(httpResponse)
        }
    })

    dataTask.resume()

But this is not working well. I am getting below error :

Optional(Error Domain=NSURLErrorDomain Code=-1017 "cannot parse response" UserInfo={NSErrorFailingURLStringKey=http://192.168.10.229:8080/JerseyDemos/rest/employees, _kCFStreamErrorCodeKey=-1, NSErrorFailingURLKey=http://192.168.10.229:8080/JerseyDemos/rest/employees, NSLocalizedDescription=cannot parse response, _kCFStreamErrorDomainKey=4, NSUnderlyingError=0x145319e0 {Error Domain=kCFErrorDomainCFNetwork Code=-1017 "(null)" UserInfo={_kCFStreamErrorDomainKey=4, _kCFStreamErrorCodeKey=-1}}})

How can I make this working? The java service is working fine. I checked it with Postman.

You might be in that use case: stackoverflow.com/a/27724627/2914850. — Zico
– Zico, Commented Nov 23, 2016 at 13:17

Vadim Kozak · Accepted Answer · 2016-11-23 13:17:11Z

0

Starting from ios 10 you should use https urls only.

You need to add ssl certificate to your java server.

answered Nov 23, 2016 at 13:17

Vadim Kozak

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1 Comment

user3815344 Over a year ago

we can use http urls in iOS 10 by using <key>NSAppTransportSecurity</key> <dict> <key>NSAllowsArbitraryLoads</key> <true/> </dict> in info.plist

user3815344 · Accepted Answer · 2016-11-24 04:01:56Z

Found the solution from the link Zico has provided. The solution is added below :

let parameters = ["username" : "admin","password" : "admin"]
    let parameterString = parameters.stringFromHttpParameters()
    let request = NSMutableURLRequest(URL: NSURL(string: "http://192.168.10.229:8080/JerseyDemos/rest/employees?\(parameterString)")!,
                                      cachePolicy: .UseProtocolCachePolicy,
                                      timeoutInterval: 60.0)
    request.HTTPMethod = "GET"
    request.addValue("application/json", forHTTPHeaderField: "Content-Type")
    request.addValue("application/json", forHTTPHeaderField: "Accept")
    let session = NSURLSession.sharedSession()
    let dataTask = session.dataTaskWithRequest(request, completionHandler: { (data, response, error) -> Void in
        if (error != nil) {
            print(error)
        } else {
            let httpResponse = response as? NSHTTPURLResponse
            print(httpResponse)
        }
    })

    dataTask.resume()

I hope this will help other people here.

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