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import jdk.test.lib.Asserts;
import jdk.test.lib.SecurityTools;
import jdk.test.lib.process.OutputAnalyzer;

import java.io.File;
import java.security.KeyStore;
import java.security.interfaces.ECKey;

/**
 * @test
 * @bug 8213400 8214179 8267319
 * @summary Support choosing group name in keytool keypair generation
 * @library /test/lib
 */

public class GroupName {

    private static final String COMMON = "-keystore ks "
            + "-storepass changeit -keypass changeit -debug";

    public static void main(String[] args) throws Throwable {
        gen("a", "-keyalg RSA -groupname secp256r1")
                .shouldHaveExitValue(1);

        gen("b", "-keyalg EC")
                .shouldHaveExitValue(0)
                .shouldNotContain("Specifying -keysize for generating EC keys is deprecated");
        checkCurveName("b", "secp384r1"); // default; if none specified

        gen("c", "-keyalg EC -keysize 256")
                .shouldHaveExitValue(0)
                .shouldContain("Specifying -keysize for generating EC keys is deprecated")
                .shouldContain("please use \"-groupname secp256r1\" instead.");
        checkCurveName("c", "secp256r1");

        gen("d", "-keyalg EC -keysize 256 -groupname secp256r1")
                .shouldHaveExitValue(1)
                .shouldContain("Cannot specify both -groupname and -keysize");

        gen("e", "-keyalg EC -groupname secp256r1")
                .shouldHaveExitValue(0)
                .shouldNotContain("Specifying -keysize for generating EC keys is deprecated");
        checkCurveName("e", "secp256r1");

        kt("-list -v")
                .shouldHaveExitValue(0)
                .shouldContain("Subject Public Key Algorithm: 256-bit EC (secp256r1) key")
                .shouldContain("Subject Public Key Algorithm: 384-bit EC (secp384r1) key");
    }

    private static void checkCurveName(String a, String name)
            throws Exception {
        KeyStore ks = KeyStore.getInstance(new File("ks"), "changeit".toCharArray());
        ECKey key = (ECKey)ks.getCertificate(a).getPublicKey();
        // The following check is highly implementation dependent. In OpenJDK,
        // params.toString() should contain all alternative names and the OID.
        Asserts.assertTrue(key.getParams().toString().contains(name));
    }

    private static OutputAnalyzer kt(String cmd) throws Throwable {
        return SecurityTools.keytool(COMMON + " " + cmd);
    }

    private static OutputAnalyzer gen(String a, String extra) throws Throwable {
        return kt("-genkeypair -alias " + a + " -dname CN=" + a + " " + extra);
    }
}