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/*
* Copyright © 2014-2021 The Android Password Store Authors. All Rights Reserved.
* SPDX-License-Identifier: GPL-3.0-only
*/
@file:JvmName("OpenPgpDecryptionResult")
package org.openintents.openpgp
import android.os.Parcel
import android.os.Parcelable
import android.os.Parcelable.Creator
public class OpenPgpDecryptionResult() : Parcelable {
private var result = 0
private var sessionKey: ByteArray? = null
private var decryptedSessionKey: ByteArray? = null
private constructor(result: Int) : this() {
this.result = result
sessionKey = null
decryptedSessionKey = null
}
private constructor(
result: Int,
sessionKey: ByteArray?,
decryptedSessionKey: ByteArray?
) : this() {
this.result = result
if (sessionKey == null != (decryptedSessionKey == null)) {
throw AssertionError("sessionkey must be null iff decryptedSessionKey is null")
}
this.sessionKey = sessionKey
this.decryptedSessionKey = decryptedSessionKey
}
public fun getResult(): Int {
return result
}
public fun hasDecryptedSessionKey(): Boolean {
return sessionKey != null
}
public fun getSessionKey(): ByteArray? {
return if (sessionKey == null) {
null
} else sessionKey!!.copyOf(sessionKey!!.size)
}
public fun getDecryptedSessionKey(): ByteArray? {
return if (sessionKey == null || decryptedSessionKey == null) {
null
} else decryptedSessionKey!!.copyOf(decryptedSessionKey!!.size)
}
override fun describeContents(): Int {
return 0
}
override fun writeToParcel(dest: Parcel, flags: Int) {
/**
* NOTE: When adding fields in the process of updating this API, make sure to bump
* [.PARCELABLE_VERSION].
*/
dest.writeInt(PARCELABLE_VERSION)
// Inject a placeholder that will store the parcel size from this point on
// (not including the size itself).
val sizePosition = dest.dataPosition()
dest.writeInt(0)
val startPosition = dest.dataPosition()
// version 1
dest.writeInt(result)
// version 2
dest.writeByteArray(sessionKey)
dest.writeByteArray(decryptedSessionKey)
// Go back and write the size
val parcelableSize = dest.dataPosition() - startPosition
dest.setDataPosition(sizePosition)
dest.writeInt(parcelableSize)
dest.setDataPosition(startPosition + parcelableSize)
}
override fun toString(): String {
return "\nresult: $result"
}
public companion object CREATOR : Creator<OpenPgpDecryptionResult> {
/**
* Since there might be a case where new versions of the client using the library getting
* old versions of the protocol (and thus old versions of this class), we need a versioning
* system for the parcels sent between the clients and the providers.
*/
private const val PARCELABLE_VERSION = 2
// content not encrypted
public const val RESULT_NOT_ENCRYPTED: Int = -1
// insecure!
public const val RESULT_INSECURE: Int = 0
// encrypted
public const val RESULT_ENCRYPTED: Int = 1
override fun createFromParcel(source: Parcel): OpenPgpDecryptionResult? {
val version = source.readInt() // parcelableVersion
val parcelableSize = source.readInt()
val startPosition = source.dataPosition()
val result = source.readInt()
val sessionKey = if (version > 1) source.createByteArray() else null
val decryptedSessionKey =
if (version > 1) source.createByteArray() else null
val vr =
OpenPgpDecryptionResult(result, sessionKey, decryptedSessionKey)
// skip over all fields added in future versions of this parcel
source.setDataPosition(startPosition + parcelableSize)
return vr
}
override fun newArray(size: Int): Array<OpenPgpDecryptionResult?> {
return arrayOfNulls(size)
}
}
}
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