65 lines
2.1 KiB
Java
65 lines
2.1 KiB
Java
/*
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* Copyright 2015 Christian Basler
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package ch.dissem.bitmessage.entity.payload;
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import ch.dissem.bitmessage.entity.BitmessageAddress;
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import ch.dissem.bitmessage.entity.Plaintext;
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import ch.dissem.bitmessage.utils.Decode;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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/**
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* Users who are subscribed to the sending address will see the message appear in their inbox.
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*/
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public class V5Broadcast extends V4Broadcast {
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private byte[] tag;
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private V5Broadcast(long stream, byte[] tag, CryptoBox encrypted) {
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super(5, stream, encrypted, null);
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this.tag = tag;
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}
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public V5Broadcast(BitmessageAddress senderAddress, Plaintext plaintext) {
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super(5, senderAddress.getStream(), null, plaintext);
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if (senderAddress.getVersion() < 4)
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throw new IllegalArgumentException("Address version 4 (or newer) expected, but was " + senderAddress.getVersion());
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this.tag = senderAddress.getTag();
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}
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public static V5Broadcast read(InputStream is, long stream, int length) throws IOException {
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return new V5Broadcast(stream, Decode.bytes(is, 32), CryptoBox.read(is, length - 32));
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}
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public byte[] getTag() {
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return tag;
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}
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@Override
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public void writeBytesToSign(OutputStream out) throws IOException {
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out.write(tag);
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super.writeBytesToSign(out);
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}
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@Override
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public void write(OutputStream out) throws IOException {
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out.write(tag);
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super.write(out);
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}
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}
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