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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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/*
 * @test
 * @bug 7110803 8170732 8194486
 * @summary SASL service for multiple hostnames
 * @library /test/lib
 * @compile -XDignore.symbol.file SaslBasic.java
 * @run main jdk.test.lib.FileInstaller TestHosts TestHosts
 * @run main/othervm -Djdk.net.hosts.file=TestHosts SaslBasic bound auth-int
 * @run main/othervm -Djdk.net.hosts.file=TestHosts SaslBasic unbound auth-conf
 * @run main/othervm -Djdk.net.hosts.file=TestHosts SaslBasic bound auth
 */
import static jdk.test.lib.Asserts.assertEquals;

import java.util.Arrays;
import java.util.HashMap;
import javax.security.auth.callback.Callback;
import javax.security.sasl.*;

// The basic krb5 test skeleton you can copy from
public class SaslBasic {

    public static void main(String[] args) throws Exception {

        boolean bound = args[0].equals("bound");
        String name = "host." + OneKDC.REALM_LOWER_CASE;

        new OneKDC(null).writeJAASConf();
        System.setProperty("javax.security.auth.useSubjectCredsOnly", "false");

        HashMap clntprops = new HashMap();
        clntprops.put(Sasl.QOP, args[1]);
        SaslClient sc = Sasl.createSaslClient(
                new String[]{"GSSAPI"}, null, "server",
                name, clntprops, null);

        final HashMap srvprops = new HashMap();
        srvprops.put(Sasl.QOP, "auth,auth-int,auth-conf");
        SaslServer ss = Sasl.createSaslServer("GSSAPI", "server",
                bound? name: null, srvprops,
                callbacks -> {
                    for (Callback cb : callbacks) {
                        if (cb instanceof RealmCallback) {
                            ((RealmCallback) cb).setText(OneKDC.REALM);
                        } else if (cb instanceof AuthorizeCallback) {
                            ((AuthorizeCallback) cb).setAuthorized(true);
                        }
                    }
                });

        byte[] token = new byte[0];
        byte[] lastClientToken = null;
        while (!sc.isComplete() || !ss.isComplete()) {
            if (!sc.isComplete()) {
                token = sc.evaluateChallenge(token);
                lastClientToken = token;
            }
            if (!ss.isComplete()) {
                token = ss.evaluateResponse(token);
            }
        }
        if (!bound) {
            String boundName = (String)ss.getNegotiatedProperty(
                    Sasl.BOUND_SERVER_NAME);
            if (!boundName.equals(name)) {
                throw new RuntimeException("Wrong bound server name");
            }
        }
        Object key = ss.getNegotiatedProperty(
                "com.sun.security.jgss.inquiretype.krb5_get_session_key");
        if (key == null) {
            throw new RuntimeException("Extended negotiated property not read");
        }

        if (args[1].equals("auth")) {
            // 8170732. These are the maximum size bytes after jgss/krb5 wrap.
            if (lastClientToken[17] != 0 || lastClientToken[18] != 0
                    || lastClientToken[19] != 0) {
                throw new RuntimeException("maximum size for auth must be 0");
            }
            testWrapUnwrapNoSecLayer(sc, ss);
        } else {
            testWrapUnwrapWithSecLayer(sc, ss);
        }
    }

    private static void testWrapUnwrapWithSecLayer(SaslClient sc, SaslServer ss)
        throws SaslException {
        byte[] token;
        byte[] hello = "hello".getBytes();

        // test client wrap and server unwrap
        token = sc.wrap(hello, 0, hello.length);
        token = ss.unwrap(token, 0, token.length);

        if (!Arrays.equals(hello, token)) {
            throw new RuntimeException("Client message altered");
        }

        // test server wrap and client unwrap
        token = ss.wrap(hello, 0, hello.length);
        token = sc.unwrap(token, 0, token.length);

        if (!Arrays.equals(hello, token)) {
            throw new RuntimeException("Server message altered");
        }
    }

    private static void testWrapUnwrapNoSecLayer(SaslClient sc, SaslServer ss)
        throws SaslException {
        byte[] clntBuf = new byte[]{0, 1, 2, 3};
        byte[] srvBuf = new byte[]{10, 11, 12, 13};
        String expectedError = "No security layer negotiated";

        try {
            sc.wrap(clntBuf, 0, clntBuf.length);
            throw new RuntimeException(
                    "client wrap should not be allowed w/no security layer");
        } catch (IllegalStateException e) {
            assertEquals(expectedError, e.getMessage());
        }

        try {
            ss.wrap(srvBuf, 0, srvBuf.length);
            throw new RuntimeException(
                    "server wrap should not be allowed w/no security layer");
        } catch (IllegalStateException e) {
            assertEquals(expectedError, e.getMessage());
        }

        try {
            sc.unwrap(clntBuf, 0, clntBuf.length);
            throw new RuntimeException(
                    "client unwrap should not be allowed w/no security layer");
        } catch (IllegalStateException e) {
            assertEquals(expectedError, e.getMessage());
        }

        try {
            ss.unwrap(srvBuf, 0, srvBuf.length);
            throw new RuntimeException(
                    "server unwrap should not be allowed w/no security layer");
        } catch (IllegalStateException e) {
            assertEquals(expectedError, e.getMessage());
        }
    }
}