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• OpenSshCertificateImpl.java

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org.apache.sshd.common.config.keys.OpenSshCertificateImpl Maven / Gradle / Ivy

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.sshd.common.config.keys;

import java.security.PublicKey;
import java.time.Instant;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.List;
import java.util.concurrent.TimeUnit;

import org.apache.sshd.common.util.GenericUtils;
import org.apache.sshd.common.util.NumberUtils;
import org.apache.sshd.common.util.buffer.ByteArrayBuffer;

/**
 * @author Apache MINA SSHD Project
 */
public class OpenSshCertificateImpl implements OpenSshCertificate {

    private static final long serialVersionUID = -3592634724148744943L;

    private String keyType;
    private byte[] nonce;
    private PublicKey certificatePublicKey;
    private long serial;
    // Keep storing the raw code here to not break serialization
    private int type;
    private String id;
    private Collection principals;
    // match ssh-keygen behavior where the default is the epoch
    private long validAfter = OpenSshCertificate.MIN_EPOCH;
    // match ssh-keygen behavior where the default would be forever
    private long validBefore = OpenSshCertificate.INFINITY;
    private List criticalOptions;
    private List extensions;
    private String reserved;
    private PublicKey caPubKey;
    private byte[] message;
    private byte[] signature;

    public OpenSshCertificateImpl() {
        super();
    }

    @Override
    public String getRawKeyType() {
        return GenericUtils.isEmpty(keyType) ? null : keyType.split("@")[0].substring(0, keyType.indexOf("-cert"));
    }

    @Override
    public byte[] getNonce() {
        return nonce;
    }

    @Override
    public String getKeyType() {
        return keyType;
    }

    @Override
    public PublicKey getCertPubKey() {
        return certificatePublicKey;
    }

    @Override
    public long getSerial() {
        return serial;
    }

    @Override
    public Type getType() {
        return Type.fromCode(type);
    }

    @Override
    public String getId() {
        return id;
    }

    @Override
    public Collection getPrincipals() {
        return principals == null ? Collections.emptyList() : principals;
    }

    @Override
    public long getValidAfter() {
        return validAfter;
    }

    @Override
    public long getValidBefore() {
        return validBefore;
    }

    @Override
    public List getCriticalOptions() {
        return criticalOptions == null ? Collections.emptyList() : criticalOptions;
    }

    @Override
    public List getExtensions() {
        return extensions == null ? Collections.emptyList() : extensions;
    }

    @Override
    public String getReserved() {
        return reserved;
    }

    @Override
    public PublicKey getCaPubKey() {
        return caPubKey;
    }

    @Override
    public byte[] getMessage() {
        return message;
    }

    @Override
    public byte[] getSignature() {
        return signature;
    }

    @Override
    public byte[] getRawSignature() {
        if (signature == null) {
            return null;
        }
        ByteArrayBuffer buffer = new ByteArrayBuffer(signature);
        buffer.getString();
        return buffer.getBytes();
    }

    @Override
    public String getSignatureAlgorithm() {
        return NumberUtils.isEmpty(signature) ? null : new ByteArrayBuffer(signature).getString();
    }

    @Override
    public String getAlgorithm() {
        return null;
    }

    @Override
    public String getFormat() {
        return null;
    }

    @Override
    public byte[] getEncoded() {
        return GenericUtils.EMPTY_BYTE_ARRAY;
    }

    public void setKeyType(String keyType) {
        this.keyType = keyType;
    }

    public void setNonce(byte[] nonce) {
        this.nonce = nonce;
    }

    public void setCertPubKey(PublicKey certificatePublicKey) {
        this.certificatePublicKey = certificatePublicKey;
    }

    public void setSerial(long serial) {
        this.serial = serial;
    }

    public void setType(Type type) {
        this.type = type.getCode();
    }

    public void setId(String id) {
        this.id = id;
    }

    public void setPrincipals(Collection principals) {
        this.principals = principals;
    }

    public void setValidAfter(long validAfter) {
        this.validAfter = validAfter;
    }

    /**
     * If null, uses {@link OpenSshCertificate#MIN_EPOCH}
     *
     * @param validAfter {@link Instant} to use for validAfter
     */
    public void setValidAfter(Instant validAfter) {
        if (validAfter == null) {
            setValidAfter(OpenSshCertificate.MIN_EPOCH);
        } else if (Instant.EPOCH.compareTo(validAfter) <= 0) {
            setValidAfter(validAfter.getEpochSecond());
        } else {
            throw new IllegalArgumentException("Valid-after cannot be < epoch");
        }
    }

    public void setValidBefore(long validBefore) {
        this.validBefore = validBefore;
    }

    /**
     * If null, uses {@link OpenSshCertificate#INFINITY}
     *
     * @param validBefore {@link Instant} to use for validBefore
     */
    public void setValidBefore(Instant validBefore) {
        if (validBefore == null) {
            setValidBefore(OpenSshCertificate.INFINITY);
        } else if (Instant.EPOCH.compareTo(validBefore) <= 0) {
            setValidBefore(validBefore.getEpochSecond());
        } else {
            throw new IllegalArgumentException("Valid-before cannot be < epoch");
        }
    }

    public void setCriticalOptions(List criticalOptions) {
        this.criticalOptions = criticalOptions;
    }

    public void setExtensions(List extensions) {
        this.extensions = extensions;
    }

    public void setReserved(String reserved) {
        this.reserved = reserved;
    }

    public void setCaPubKey(PublicKey caPubKey) {
        this.caPubKey = caPubKey;
    }

    public void setMessage(byte[] message) {
        this.message = message;
    }

    public void setSignature(byte[] signature) {
        this.signature = signature;
    }

    private static String toDate(long timestamp) {
        if (timestamp < 0) {
            return "infinity";
        }
        Date date = new Date(TimeUnit.SECONDS.toMillis(timestamp));
        return date.toString();
    }

    @Override
    public String toString() {
        return getKeyType()
               + "[id=" + getId()
               + ", serial=" + getSerial()
               + ", type=" + getType()
               + ", validAfter=" + toDate(getValidAfter())
               + ", validBefore=" + toDate(getValidBefore())
               + "]";
    }

}