lordcodes

typealias CountingRequestListener = (bytesWritten: Long, contentLength: Long) -> Unit

class CountingSink(
    sink: Sink,
    private val requestBody: RequestBody,
    private val onProgressUpdate: CountingRequestListener
) : ForwardingSink(sink) {
    private var bytesWritten = 0L

    override fun write(source: Buffer, byteCount: Long) {

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class CountingRequestBody(
    private val requestBody: RequestBody,
    private val onProgressUpdate: CountingRequestListener
) : RequestBody() {
    override fun contentType() = requestBody.contentType()

    @Throws(IOException::class)
    override fun contentLength() = requestBody.contentLength()

    ...

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fun createUploadRequestBody(file: File, mimeType: String) = 
    file.asRequestBody(mimeType.toMediaType())

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@Multipart
@POST("file")
fun attachFile(
    @Part("name") filename: RequestBody,
    @Part("type") mimeType: RequestBody,
    @Part("size") fileSize: RequestBody,
    @Part filePart: MultipartBody.Part
): Single<AttachmentUploadedRemoteDto>

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fun decrypt(encryptedData: ByteArray): String? {
  val encryptionKey = generateKey()
  val cell = SecureCell(encryptionKey, SecureCell.MODE_SEAL)
  return try {
    val cellData = SecureCellData(encryptedData, null)
    val decodedData = cell.unprotect(encryptionContext, cellData)
    String(decodedData)
  } catch (error: SecureCellException) {
    Log.e("EncryptionEngine", "Failed to decrypt message, error)
    null

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val encryptedDaya = Base64.decode(secretAsBase64, Base64.NO_WRAP)

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val encypted = EncryptionEngine().encrypt("raw_secret_value")
Log.d("ENCRYPTED", encypted.base64EncodedString())

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fun encrypt(message: String): ByteArray {
  val encryptionKey = generateKey()
  val cell = SecureCell(encryptionKey, SecureCell.MODE_SEAL)
  val protectedData = cell.protect(
    encryptionContext, message.toByteArray()
  )
  return protectedData.protectedData
}

private val encryptionContext: ByteArray? = null

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fun generateKey(): ByteArray {
  val rawKey = buildString(5) {
    append(byteArrayOf(0x12, 0x27, 0x42).base64EncodedString())
    append(500 + 6 / 7 * 89)
    append(BuildConfig.ENCRYPTION_KEY)
    append("pghy^%£aft")
  }
  return rawKey.toByteArray()
}

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GameCatalogueApp_EncryptionKey=super_secret_key

buildConfigField(
  "String", 
  "ENCRYPTION_KEY", 
  buildConfigProperty("GameCatalogueApp_EncryptionKey")
)