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 * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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package sun.security.provider.certpath;

import java.security.Key;

import java.security.cert.TrustAnchor;

import java.security.cert.X509Certificate;

import java.util.Date;

import java.util.Set;

import java.util.Collections;

import sun.security.util.ConstraintsParameters;

import sun.security.validator.Validator;

/**

 * This class contains parameters for checking certificates against

 * constraints specified in the jdk.certpath.disabledAlgorithms security

 * property.

 */

class CertPathConstraintsParameters implements ConstraintsParameters {

    // The public key of the certificate

    private final Key key;

    // The certificate's trust anchor which will be checked against the

    // jdkCA constraint, if specified.

    private final TrustAnchor anchor;

    // The PKIXParameter validity date or the timestamp of the signed JAR

    // file, if this chain is associated with a timestamped signed JAR.

    private final Date date;

    // The variant or usage of this certificate

    private final String variant;

    // The certificate being checked (may be null if a CRL or OCSPResponse is

    // being checked)

    private final X509Certificate cert;

    public CertPathConstraintsParameters(X509Certificate cert,

            String variant, TrustAnchor anchor, Date date) {

        this(cert.getPublicKey(), variant, anchor, date, cert);

    }

    public CertPathConstraintsParameters(Key key, String variant,

            TrustAnchor anchor) {

        this(key, variant, anchor, null, null);

    }

    private CertPathConstraintsParameters(Key key, String variant,

            TrustAnchor anchor, Date date, X509Certificate cert) {

        this.key = key;

        this.variant = (variant == null ? Validator.VAR_GENERIC : variant);

        this.anchor = anchor;

        this.date = date;

        this.cert = cert;

    }

    @Override

    public boolean anchorIsJdkCA() {

        return CertPathHelper.isJdkCA(anchor);

    }

    @Override

    public Set<Key> getKeys() {

        return (key == null) ? Collections.emptySet()

                             : Collections.singleton(key);

    }

    @Override

    public Date getDate() {

        return date;

    }

    @Override

    public String getVariant() {

        return variant;

    }

    @Override

    public String extendedExceptionMsg() {

        return (cert == null ? "."

                 : " used with certificate: " +

                   cert.getSubjectX500Principal());

    }

    @Override

    public String toString() {

        StringBuilder sb = new StringBuilder("[\n");

        sb.append("\n  Variant: ").append(variant);

        if (anchor != null) {

            sb.append("\n  Anchor: ").append(anchor);

        }

        if (cert != null) {

            sb.append("\n  Cert Issuer: ")

              .append(cert.getIssuerX500Principal());

            sb.append("\n  Cert Subject: ")

              .append(cert.getSubjectX500Principal());

        }

        if (key != null) {

            sb.append("\n  Key: ").append(key.getAlgorithm());

        }

        if (date != null) {

            sb.append("\n  Date: ").append(date);

        }

        sb.append("\n]");

        return sb.toString();

    }

}