CODEWITHSUNDEEP
javaresthp-quality-center
Gaurav
Gaurav

Reputation: 1564

QC ALM ( QC 11) REST Api 400 Error while Authentication

I am trying to access QC 11 using Rest api in Java.

I am following API reference in the manual provided by HP. Following is basic step for login authentication.

Non-Web Application Authorization Client queries the is-authenticated resource and sends no authentication headers. This step is optional.

GET /qcbin/rest/is-authenticated

Server refuses request and returns reference to authentication point.

HTTP/1.1 401 Unauthorized WWW-Authenticate: LWSSO realm=http://[server]:[port]/qcbin/authentication-point

Client sends a valid Basic Authentication header to the authentication point.

GET /qcbin/authentication-point/authenticate Authorization: Basic ABCDE123

Server validates the Basic authentication headers, creates a new LW-SSO token and returns it as LWSSO_COOKIE_KEY.

HTTP/1.1 200 OK Set-Cookie: LWSSO_COOKIE_KEY={cookie}

The application can now access data and services using the token. At the end of the session, log off to discard the token.

Here is my java code.

DefaultHttpClient httpClient = new DefaultHttpClient();

            String encoding = Base64.encodeBase64String("demoUser:demoUser123".getBytes());
            HttpGet httpGet = new HttpGet("http://HOST_VALUE:PORT_VALUE/qcbin/authentication-point/authenticate");
            //httpGet.setHeader("GET", "/qcbin/authentication-point/authenticate");
            httpGet.setHeader("Authorization:", "Basic " + encoding);
            HttpResponse response;



            httpClient.getCredentialsProvider().setCredentials(
                    new AuthScope("proxyHost", 8080),
                    new UsernamePasswordCredentials("userName", "Password"));




            response = httpClient.execute(httpGet);


            System.out.println(response.getAllHeaders().toString());
            System.out.println(response.getStatusLine().toString());
            BufferedReader br = new BufferedReader(
                    new InputStreamReader((response.getEntity().getContent())));

            String output;
            System.out.println("Output from Server .... \n");
            while ((output = br.readLine()) != null) {
                System.out.println(output);
            }
            httpClient.getConnectionManager().shutdown();

It gives me output as

[Lorg.apache.http.Header;@159e154 HTTP/1.1 400 Bad Request Output from Server ....

I am new to REST by using Java. Can anyone help? Any examples for connecting to ALM using REST and fetching data?

Upvotes: 3

Views: 5862

Answers (1)

Gaurav
Gaurav

Reputation: 1564

Solved the problem.

The problem was in base64 encoding ! If you are converting string to base64 encoded string... if result is greater than 76 char. it adds new line ! even if its less than 76

So solution was 

encoding = encoding.replaceAll("\n", "");

Upvotes: 3

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