Cookie-based Authentication (Java Client Example)

Samples | Cookie-based Authentication (Java Client Example)

Notes
Maven POM file (dependencies)
Java Client Example (WebTarget)
Java Client Example (WebTarget/ClientRequestFilter)
Java Client Example (URLConnection)

Notes
See this page for details how to configure FORM Authentication with Apache Tomcat:
FORM Authentication with Apache Tomcat

Maven POM file (dependencies)

<dependencies>
    <dependency>
        <groupId>javax.ws.rs</groupId>
        <artifactId>javax.ws.rs-api</artifactId>
        <version>2.1.1</version>
    </dependency>

    <dependency>
        <groupId>org.glassfish.jersey.core</groupId>
        <artifactId>jersey-common</artifactId>
        <version>2.29.1</version>
    </dependency>

    <dependency>
        <groupId>org.glassfish.jersey.core</groupId>
        <artifactId>jersey-client</artifactId>
        <version>2.29.1</version>
    </dependency>

    <dependency>
        <groupId>org.glassfish.jersey.inject</groupId>
        <artifactId>jersey-hk2</artifactId>
        <version>2.29.1</version>
    </dependency>
</dependencies>

Java Client Example (WebTarget)

import java.io.IOException;

import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.Invocation;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.Cookie;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

import org.glassfish.jersey.logging.LoggingFeature;

public class Test {
    public static void main(String[] args) throws IOException {
        final String url = "http://localhost:8080/auth/jsp/";

        final String cookieName = "JSESSIONID";
        final String cookieValue = "C4AB71C3C27DEFF400FBEE8974CCB4D9";

        Cookie cookie = new Cookie(cookieName, cookieValue);

        final Client client = ClientBuilder.newBuilder()
                .property(LoggingFeature.LOGGING_FEATURE_VERBOSITY_CLIENT, LoggingFeature.Verbosity.PAYLOAD_ANY)
                .property(LoggingFeature.LOGGING_FEATURE_LOGGER_LEVEL_CLIENT, "INFO").build();

        WebTarget webTarget = client.target(url);

        Invocation.Builder invocationBuilder = webTarget.request(MediaType.TEXT_HTML);

        invocationBuilder = invocationBuilder.cookie(cookie);

        Response response = invocationBuilder.get();

        //System.out.println(response.getStatus());

        //System.out.println(response.readEntity(String.class));
    }
}

Output:

Oct 13, 2015 1:40:47 PM org.glassfish.jersey.logging.LoggingInterceptor log
INFO: 1 * Sending client request on thread main
1 > GET http://localhost:8080/auth/jsp/
1 > Accept: text/html
1 > Cookie: $Version=1;JSESSIONID=C4AB71C3C27DEFF400FBEE8974CCB4D9

Oct 13, 2015 1:40:47 PM org.glassfish.jersey.logging.LoggingInterceptor log
INFO: 1 * Client response received on thread main
1 < 200
1 < Cache-Control: private
1 < Content-Length: 99
1 < Content-Type: text/html;charset=ISO-8859-1
1 < Date: Sun, 13 Oct 2015 17:40:47 GMT
1 < Expires: Wed, 31 Dec 1969 19:00:00 EST
<html>
  <body>
User: tomcat
  </body>
</html>

Java Client Example (WebTarget/ClientRequestFilter)

import java.io.IOException;

import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.ClientRequestContext;
import javax.ws.rs.client.ClientRequestFilter;
import javax.ws.rs.client.Invocation;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

import org.glassfish.jersey.logging.LoggingFeature;

public class Test {
    public static void main(String[] args) throws IOException {
        final String url = "http://localhost:8080/auth/jsp/";

        final String cookieName = "JSESSIONID";
        final String cookieValue = "8CDAA8F9254720AABDB920F899AD0768";

        final Client client = ClientBuilder.newBuilder()
                .property(LoggingFeature.LOGGING_FEATURE_VERBOSITY_CLIENT, LoggingFeature.Verbosity.PAYLOAD_ANY)
                .property(LoggingFeature.LOGGING_FEATURE_LOGGER_LEVEL_CLIENT, "INFO").build();

        WebTarget webTarget = client.target(url);

        webTarget.register(new CookieClientRequestFilter(cookieName, cookieValue));

        Invocation.Builder invocationBuilder = webTarget.request(MediaType.TEXT_HTML);

        Response response = invocationBuilder.get();

        //System.out.println(response.getStatus());

        //System.out.println(response.readEntity(String.class));
    }
}

class CookieClientRequestFilter implements ClientRequestFilter {
    private final String cookieName;

    private final String cookieValue;

    public CookieClientRequestFilter(final String cookieName, final String cookieValue) {
        this.cookieName = cookieName;
        this.cookieValue = cookieValue;
    }

    @Override
    public void filter(final ClientRequestContext requestContext) throws IOException {
        requestContext.getHeaders().add(HttpHeaders.COOKIE, cookieName + "=" + cookieValue);
    }
}

Output:

Oct 13, 2015 6:20:31 PM org.glassfish.jersey.logging.LoggingInterceptor log
INFO: 1 * Sending client request on thread main
1 > GET http://localhost:8080/auth/jsp/
1 > Accept: text/html
1 > Cookie: JSESSIONID=8CDAA8F9254720AABDB920F899AD0768

Oct 13, 2015 6:20:31 PM org.glassfish.jersey.logging.LoggingInterceptor log
INFO: 1 * Client response received on thread main
1 < 200
1 < Cache-Control: private
1 < Content-Length: 99
1 < Content-Type: text/html;charset=ISO-8859-1
1 < Date: Sun, 13 Oct 2015 22:20:31 GMT
1 < Expires: Wed, 31 Dec 1969 19:00:00 EST
<html>
  <head>
    <title>Index Page</title>
  </head>

  <body>
User: <b>tomcat
  </body>
</html>

Java Client Example (URLConnection)

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.List;
import java.util.Map;

import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.MediaType;

public class Test {
    public static void main(String[] args) throws IOException {
        final String targetURL = "http://localhost:8080/auth/jsp/";

        final String cookieName = "JSESSIONID";
        final String cookieValue = "C4AB71C3C27DEFF400FBEE8974CCB4D9";

        HttpURLConnection connection = null;
        try {
            final URL url = new URL(targetURL);

            connection = (HttpURLConnection) url.openConnection();

            connection.setRequestMethod("GET");

            final String cookie = cookieName + "=" + cookieValue;

            connection.setRequestProperty(HttpHeaders.COOKIE, cookie);
            connection.setRequestProperty("Accept", MediaType.TEXT_HTML);

            // response code
            System.out.println(connection.getResponseCode());

            // response headers
            final Map<String, List<String>> headerFields = connection.getHeaderFields();
            for (final Map.Entry<String, List<String>> entry : headerFields.entrySet()) {
                System.out.println("Key: " + entry.getKey() + ", Value: " + entry.getValue());
            }

            // response body
            if (connection.getInputStream() != null) {
                final StringBuilder response = new StringBuilder();
                try (final InputStream inputStream = connection.getInputStream();
                        final InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
                        final BufferedReader bufferedReader = new BufferedReader(inputStreamReader)) {
                    String line;
                    while ((line = bufferedReader.readLine()) != null) {
                        response.append(line);
                        response.append('\n');
                    }
                }
                System.out.println(response.toString());
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (connection != null) {
                connection.disconnect();
            }
        }
    }
}

Output:

200
Key: null, Value: [HTTP/1.1 200]
Key: Cache-Control, Value: [private]
Key: Expires, Value: [Wed, 31 Dec 1969 19:00:00 EST]
Key: Content-Length, Value: [99]
Key: Date, Value: [Sun, 13 Oct 2015 18:57:31 GMT]
Key: Content-Type, Value: [text/html;charset=ISO-8859-1]
<html>
  <body>
User: tomcat
  </body>
</html>