Signal-Android/libtextsecure/src/main/java/org/whispersystems/textsecure/api/push/SignedPreKeyEntity.java

69 lines
2.5 KiB
Java

/**
* Copyright (C) 2014 Open Whisper Systems
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.whispersystems.textsecure.api.push;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import org.whispersystems.libaxolotl.ecc.ECPublicKey;
import org.whispersystems.textsecure.internal.push.PreKeyEntity;
import org.whispersystems.textsecure.internal.util.Base64;
import java.io.IOException;
public class SignedPreKeyEntity extends PreKeyEntity {
@JsonProperty
@JsonSerialize(using = ByteArraySerializer.class)
@JsonDeserialize(using = ByteArrayDeserializer.class)
private byte[] signature;
public SignedPreKeyEntity() {}
public SignedPreKeyEntity(int keyId, ECPublicKey publicKey, byte[] signature) {
super(keyId, publicKey);
this.signature = signature;
}
public byte[] getSignature() {
return signature;
}
private static class ByteArraySerializer extends JsonSerializer<byte[]> {
@Override
public void serialize(byte[] value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
gen.writeString(Base64.encodeBytesWithoutPadding(value));
}
}
private static class ByteArrayDeserializer extends JsonDeserializer<byte[]> {
@Override
public byte[] deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
return Base64.decodeWithoutPadding(p.getValueAsString());
}
}
}