68 lines
2.2 KiB
Kotlin
68 lines
2.2 KiB
Kotlin
/*
|
|
* Copyright 2017 Christian Basler
|
|
*
|
|
* 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 ch.dissem.bitmessage.entity.payload
|
|
|
|
import ch.dissem.bitmessage.entity.BitmessageAddress
|
|
import ch.dissem.bitmessage.entity.Plaintext
|
|
import ch.dissem.bitmessage.entity.SignedStreamableWriter
|
|
import ch.dissem.bitmessage.utils.Decode
|
|
|
|
import java.io.InputStream
|
|
import java.io.OutputStream
|
|
|
|
/**
|
|
* Users who are subscribed to the sending address will see the message appear in their inbox.
|
|
*/
|
|
class V5Broadcast : V4Broadcast {
|
|
|
|
val tag: ByteArray
|
|
|
|
private constructor(stream: Long, tag: ByteArray, encrypted: CryptoBox) : super(5, stream, encrypted, null) {
|
|
this.tag = tag
|
|
}
|
|
|
|
constructor(senderAddress: BitmessageAddress, plaintext: Plaintext) : super(5, senderAddress.stream, null, plaintext) {
|
|
if (senderAddress.version < 4)
|
|
throw IllegalArgumentException("Address version 4 (or newer) expected, but was " + senderAddress.version)
|
|
this.tag = senderAddress.tag ?: throw IllegalStateException("version 4 address without tag")
|
|
}
|
|
|
|
override fun writer(): SignedStreamableWriter = Writer(this)
|
|
|
|
private class Writer(
|
|
private val item: V5Broadcast
|
|
) : V4Broadcast.Writer(item) {
|
|
|
|
override fun writeBytesToSign(out: OutputStream) {
|
|
out.write(item.tag)
|
|
super.writeBytesToSign(out)
|
|
}
|
|
|
|
override fun write(out: OutputStream) {
|
|
out.write(item.tag)
|
|
super.write(out)
|
|
}
|
|
|
|
}
|
|
|
|
companion object {
|
|
@JvmStatic
|
|
fun read(input: InputStream, stream: Long, length: Int) =
|
|
V5Broadcast(stream, Decode.bytes(input, 32), CryptoBox.read(input, length - 32))
|
|
}
|
|
}
|