76 lines
2.3 KiB
Kotlin
76 lines
2.3 KiB
Kotlin
/*
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* Copyright 2017 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.SignedStreamableWriter
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import ch.dissem.bitmessage.utils.Decode
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import java.io.InputStream
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import java.io.OutputStream
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import java.nio.ByteBuffer
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/**
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* Request for a public key.
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*/
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class GetPubkey : ObjectPayload {
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override val type: ObjectType = ObjectType.GET_PUBKEY
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override val stream: Long
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/**
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* @return an array of bytes that represent either the ripe, or the tag of an address, depending on the
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* * address version.
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*/
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val ripeTag: ByteArray
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constructor(address: BitmessageAddress) : super(address.version) {
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this.stream = address.stream
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this.ripeTag = if (address.version < 4) address.ripe else
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address.tag ?: throw IllegalStateException("Address of version 4 without tag shouldn't exist!")
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}
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private constructor(version: Long, stream: Long, ripeOrTag: ByteArray) : super(version) {
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this.stream = stream
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this.ripeTag = ripeOrTag
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}
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override fun writer(): SignedStreamableWriter = Writer(this)
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private class Writer(
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private val item: GetPubkey
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) : SignedStreamableWriter {
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override fun write(out: OutputStream) {
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out.write(item.ripeTag)
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}
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override fun write(buffer: ByteBuffer) {
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buffer.put(item.ripeTag)
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}
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override fun writeBytesToSign(out: OutputStream) = Unit // nothing to sign
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}
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companion object {
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@JvmStatic
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fun read(input: InputStream, stream: Long, length: Int, version: Long): GetPubkey {
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return GetPubkey(version, stream, Decode.bytes(input, length))
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}
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}
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}
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