google.registry.tmch.TmchData.java Source code

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Here is the source code for google.registry.tmch.TmchData.java

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// Copyright 2016 The Nomulus Authors. All Rights Reserved.
//
// Licensed 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 google.registry.tmch;

import static com.google.common.base.CharMatcher.whitespace;

import com.google.common.io.ByteSource;
import google.registry.model.smd.EncodedSignedMark;
import java.io.IOException;
import java.io.InputStream;
import org.bouncycastle.openpgp.PGPPublicKey;
import org.bouncycastle.openpgp.PGPUtil;
import org.bouncycastle.openpgp.bc.BcPGPPublicKeyRing;

/** Helper class for common data loaded from the jar and datastore at runtime. */
public final class TmchData {

    private static final String BEGIN_ENCODED_SMD = "-----BEGIN ENCODED SMD-----";
    private static final String END_ENCODED_SMD = "-----END ENCODED SMD-----";

    @SuppressWarnings("deprecation")
    static PGPPublicKey loadPublicKey(ByteSource pgpPublicKeyFile) {
        try (InputStream input = pgpPublicKeyFile.openStream();
                InputStream decoder = PGPUtil.getDecoderStream(input)) {
            return new BcPGPPublicKeyRing(decoder).getPublicKey();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    /** Extracts encoded SMD from an ASCII-armored string. */
    public static EncodedSignedMark readEncodedSignedMark(String data) {
        int beginTagIndex = data.indexOf(BEGIN_ENCODED_SMD);
        int endTagIndex = data.indexOf(END_ENCODED_SMD);
        if (beginTagIndex >= 0 && endTagIndex >= 0) {
            data = data.substring(beginTagIndex + BEGIN_ENCODED_SMD.length(), endTagIndex);
        }
        return EncodedSignedMark.create("base64", whitespace().removeFrom(data));
    }
}