Updated on 2026-08-14
This commit is contained in:
Tangem
parent
6d3ab223ec
commit
c577dae7a1
9 changed files with 451 additions and 525 deletions
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package com.tangem.presentation.activity
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import android.app.Activity
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import android.content.Intent
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import android.nfc.NfcAdapter
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import android.nfc.Tag
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import android.os.AsyncTask
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import android.os.Bundle
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import android.support.v7.app.AppCompatActivity
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import android.text.Editable
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import android.text.Html
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import android.text.TextWatcher
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import android.util.Log
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import android.view.KeyEvent
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import android.view.View
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import android.widget.*
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import com.tangem.data.network.request.ElectrumRequest
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import com.tangem.data.network.request.FeeRequest
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import com.tangem.data.network.request.InfuraRequest
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import com.tangem.data.network.task.confirm_payment.ConnectFeeTask
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import com.tangem.data.network.task.confirm_payment.ConnectTask
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import com.tangem.data.network.task.confirm_payment.ETHRequestTask
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import com.tangem.domain.cardReader.NfcManager
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import com.tangem.domain.wallet.*
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import com.tangem.util.BTCUtils
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import com.tangem.util.DerEncodingUtil
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import com.tangem.util.FormatUtil
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import com.tangem.util.Util
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import com.tangem.wallet.R
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import kotlinx.android.synthetic.main.activity_confirm_payment.*
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import java.io.IOException
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import java.math.BigInteger
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import java.util.*
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class ConfirmPaymentActivity : AppCompatActivity(), NfcAdapter.ReaderCallback {
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companion object {
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private const val REQUEST_CODE_SIGN_PAYMENT = 1
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private const val REQUEST_CODE_REQUEST_PIN2 = 2
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}
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private var nfcManager: NfcManager? = null
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var card: TangemCard? = null
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var feeRequestSuccess = false
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var balanceRequestSuccess = false
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private var tvFeeEquivalent: TextView? = null
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var etAmount: EditText? = null
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var etFee: EditText? = null
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var rgFee: RadioGroup? = null
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var progressBar: ProgressBar? = null
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var btnSend: Button? = null
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var minFee: String? = null
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var maxFee: String? = null
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var normalFee: String? = null
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var minFeeInInternalUnits: Long? = 0L
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private var requestPIN2Count = 0
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var nodeCheck = false
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var dtVerified: Date? = null
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.activity_confirm_payment)
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MainActivity.commonInit(applicationContext)
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nfcManager = NfcManager(this, this)
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card = TangemCard(intent.getStringExtra("UID"))
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card!!.LoadFromBundle(intent.extras!!.getBundle("Card"))
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progressBar = findViewById(R.id.progressBar)
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btnSend = findViewById(R.id.btnSend)
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etAmount = findViewById(R.id.etAmount)
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etFee = findViewById(R.id.etFee)
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tvFeeEquivalent = findViewById(R.id.tvFeeEquivalent)
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rgFee = findViewById(R.id.rgFee)
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val engine = CoinEngineFactory.Create(card!!.blockchain)
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if (card!!.blockchain == Blockchain.Token) {
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val html = Html.fromHtml(engine!!.GetBalanceWithAlter(card))
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tvBalance.text = html
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} else
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tvBalance.text = engine!!.GetBalanceWithAlter(card)
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etAmount!!.setText(intent.getStringExtra(SignPaymentActivity.EXTRA_AMOUNT))
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tvCurrency.text = engine.GetBalanceCurrency(card)
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tvCurrency2.text = engine.GetFeeCurrency()
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tvCardID.text = card!!.cidDescription
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etWallet!!.setText(intent.getStringExtra("Wallet"))
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etFee!!.setText("?")
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btnSend!!.visibility = View.INVISIBLE
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feeRequestSuccess = false
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balanceRequestSuccess = false
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// set listeners
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rgFee!!.setOnCheckedChangeListener { _, checkedId -> doSetFee(checkedId) }
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etFee!!.addTextChangedListener(object : TextWatcher {
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override fun beforeTextChanged(s: CharSequence, start: Int, count: Int, after: Int) {
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}
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override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
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try {
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val engine = CoinEngineFactory.Create(card!!.blockchain)
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val eqFee = engine!!.EvaluteFeeEquivalent(card, etFee!!.text.toString())
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tvFeeEquivalent!!.text = eqFee
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if (!card!!.amountEquivalentDescriptionAvailable) {
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tvFeeEquivalent!!.error = "Service unavailable"
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} else {
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tvFeeEquivalent!!.error = null
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}
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} catch (e: Exception) {
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e.printStackTrace()
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tvFeeEquivalent!!.text = ""
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}
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}
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override fun afterTextChanged(s: Editable) {
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}
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})
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btnSend!!.setOnClickListener {
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val calendar = Calendar.getInstance()
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calendar.add(Calendar.MINUTE, -1)
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if (dtVerified == null || dtVerified!!.before(calendar.time)) {
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finishActivityWithError(Activity.RESULT_CANCELED, getString(R.string.the_obtained_data_is_outdated_try_again))
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return@setOnClickListener
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}
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val engineCoin = CoinEngineFactory.Create(card!!.blockchain)
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if (engineCoin!!.IsNeedCheckNode() && !nodeCheck) {
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Toast.makeText(baseContext, getString(R.string.cannot_reach_current_active_blockchain_node_try_again), Toast.LENGTH_LONG).show()
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return@setOnClickListener
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}
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val txFee = etFee!!.text.toString()
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val txAmount = etAmount!!.text.toString()
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if (!engineCoin.HasBalanceInfo(card)) {
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finishActivityWithError(Activity.RESULT_CANCELED, getString(R.string.cannot_check_balance_no_connection_with_blockchain_nodes))
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return@setOnClickListener
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} else if (!engineCoin.IsBalanceNotZero(card)) {
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finishActivityWithError(Activity.RESULT_CANCELED, getString(R.string.the_wallet_is_empty))
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return@setOnClickListener
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} else if (!engineCoin.CheckUnspentTransaction(card)) {
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finishActivityWithError(Activity.RESULT_CANCELED, getString(R.string.please_wait_for_confirmation_of_incoming_transaction))
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return@setOnClickListener
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}
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if (!engineCoin.CheckAmountValie(card, txAmount, txFee, minFeeInInternalUnits)) {
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finishActivityWithError(Activity.RESULT_CANCELED, getString(R.string.fee_exceeds_payment_amount_enter_correct_value_and_repeat_sending))
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return@setOnClickListener
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}
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requestPIN2Count = 0
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val intent = Intent(baseContext, RequestPINActivity::class.java)
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intent.putExtra("mode", RequestPINActivity.Mode.RequestPIN2.toString())
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intent.putExtra("UID", card!!.uid)
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intent.putExtra("Card", card!!.asBundle)
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startActivityForResult(intent, REQUEST_CODE_REQUEST_PIN2)
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}
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if (card!!.blockchain == Blockchain.Ethereum || card!!.blockchain == Blockchain.EthereumTestNet || card!!.blockchain == Blockchain.Token) {
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val task = ETHRequestTask(this@ConfirmPaymentActivity, card!!.blockchain)
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val req = InfuraRequest.GetGasPrise(card!!.wallet)
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req.id = 67
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req.setBlockchain(card!!.blockchain)
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rgFee!!.isEnabled = false
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task.execute(req)
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} else {
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rgFee!!.isEnabled = true
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val data = SharedData(SharedData.COUNT_REQUEST)
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val engineCoin = CoinEngineFactory.Create(card!!.blockchain)
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for (i in 0 until data.allRequest) {
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val nodeAddress = engineCoin!!.GetNextNode(card)
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val nodePort = engineCoin.GetNextNodePort(card)
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val connectTaskEx = ConnectTask(this@ConfirmPaymentActivity, nodeAddress, nodePort, data)
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connectTaskEx.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, ElectrumRequest.CheckBalance(card!!.wallet))
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}
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var calcSize = 256
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try {
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calcSize = buildSize(etWallet!!.text.toString(), "0.00", etAmount!!.text.toString())
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} catch (ex: Exception) {
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Log.e("Build Fee error", ex.message)
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}
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card!!.resetFailedBalanceRequestCounter()
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val sharedFee = SharedData(SharedData.COUNT_REQUEST)
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progressBar!!.visibility = View.VISIBLE
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for (i in 0 until SharedData.COUNT_REQUEST) {
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val feeTask = ConnectFeeTask(this@ConfirmPaymentActivity, sharedFee)
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feeTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR,
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FeeRequest.GetFee(card!!.wallet, calcSize.toLong(), FeeRequest.NORMAL),
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FeeRequest.GetFee(card!!.wallet, calcSize.toLong(), FeeRequest.MINIMAL),
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FeeRequest.GetFee(card!!.wallet, calcSize.toLong(), FeeRequest.PRIORITY))
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}
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}
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}
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public override fun onResume() {
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super.onResume()
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nfcManager!!.onResume()
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}
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public override fun onPause() {
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super.onPause()
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nfcManager!!.onPause()
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}
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public override fun onStop() {
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super.onStop()
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nfcManager!!.onStop()
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}
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override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
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super.onActivityResult(requestCode, resultCode, data)
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if (requestCode == REQUEST_CODE_SIGN_PAYMENT) {
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if (data != null && data.extras != null) {
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if (data.extras!!.containsKey("UID") && data.extras!!.containsKey("Card")) {
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val updatedCard = TangemCard(data.getStringExtra("UID"))
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updatedCard.LoadFromBundle(data.getBundleExtra("Card"))
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card = updatedCard
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}
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}
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if (resultCode == SignPaymentActivity.RESULT_INVALID_PIN && requestPIN2Count < 2) {
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requestPIN2Count++
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val intent = Intent(baseContext, RequestPINActivity::class.java)
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intent.putExtra("mode", RequestPINActivity.Mode.RequestPIN2.toString())
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intent.putExtra("UID", card!!.uid)
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intent.putExtra("Card", card!!.asBundle)
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startActivityForResult(intent, REQUEST_CODE_REQUEST_PIN2)
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return
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}
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setResult(resultCode, data)
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finish()
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} else if (requestCode == REQUEST_CODE_REQUEST_PIN2) {
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if (resultCode == Activity.RESULT_OK) {
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val intent = Intent(baseContext, SignPaymentActivity::class.java)
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intent.putExtra("UID", card!!.uid)
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intent.putExtra("Card", card!!.asBundle)
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intent.putExtra("Wallet", etWallet!!.text.toString())
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intent.putExtra(SignPaymentActivity.EXTRA_AMOUNT, etAmount!!.text.toString())
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intent.putExtra("Fee", etFee!!.text.toString())
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startActivityForResult(intent, REQUEST_CODE_SIGN_PAYMENT)
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} else
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Toast.makeText(baseContext, R.string.pin_2_is_required_to_sign_the_payment, Toast.LENGTH_LONG).show()
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}
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}
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override fun onKeyDown(keyCode: Int, event: KeyEvent): Boolean {
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when (keyCode) {
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KeyEvent.KEYCODE_BACK -> {
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val intent = Intent()
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setResult(Activity.RESULT_CANCELED, intent)
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finish()
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return true
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}
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}
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return super.onKeyDown(keyCode, event)
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}
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fun finishActivityWithError(errorCode: Int, message: String) {
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val intent = Intent()
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intent.putExtra("message", message)
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setResult(errorCode, intent)
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finish()
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}
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override fun onTagDiscovered(tag: Tag) {
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try {
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// Log.w(getClass().getName(), "Ignore discovered tag!");
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nfcManager!!.ignoreTag(tag)
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} catch (e: IOException) {
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e.printStackTrace()
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}
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}
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@Throws(Exception::class)
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internal fun buildSize(outputAddress: String, outFee: String, outAmount: String): Int {
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val myAddress = card!!.wallet
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val pbKey = card!!.walletPublicKey
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val pbComprKey = card!!.walletPublicKeyRar
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// build script for our address
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val rawTxList = card!!.unspentTransactions
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val outputScriptWeAreAbleToSpend = Transaction.Script.buildOutput(myAddress).bytes
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// collect unspent
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val unspentOutputs = BTCUtils.getOutputs(rawTxList, outputScriptWeAreAbleToSpend)
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var fullAmount: Long = 0
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for (i in unspentOutputs.indices) {
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fullAmount += unspentOutputs[i].value
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}
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// Get first unspent
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val outPut = unspentOutputs[0]
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val outPutIndex = outPut.outputIndex
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// get prev TX id;
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val prevTXID = rawTxList[0].txID//"f67b838d6e2c0c587f476f583843e93ff20368eaf96a798bdc25e01f53f8f5d2";
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val fees = FormatUtil.ConvertStringToLong(outFee)
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var amount = FormatUtil.ConvertStringToLong(outAmount)
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amount = amount - fees
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val change = fullAmount - fees - amount
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if (amount + fees > fullAmount) {
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throw Exception(String.format("Balance (%d) < amount (%d) + (%d)", fullAmount, change, amount))
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}
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val hashesForSign = arrayOfNulls<ByteArray>(unspentOutputs.size)
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for (i in unspentOutputs.indices) {
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val newTX = BTCUtils.buildTXForSign(myAddress, outputAddress, myAddress, unspentOutputs, i, amount, change)
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val hashData = Util.calculateSHA256(newTX)
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val doubleHashData = Util.calculateSHA256(hashData)
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// Log.e("TX_BODY_1", BTCUtils.toHex(newTX));
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// Log.e("TX_HASH_1", BTCUtils.toHex(hashData));
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// Log.e("TX_HASH_2", BTCUtils.toHex(doubleHashData));
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unspentOutputs[i].bodyDoubleHash = doubleHashData
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unspentOutputs[i].bodyHash = hashData
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hashesForSign[i] = doubleHashData
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}
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val signFromCard = ByteArray(64 * unspentOutputs.size)
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for (i in unspentOutputs.indices) {
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val r = BigInteger(1, Arrays.copyOfRange(signFromCard, 0 + i * 64, 32 + i * 64))
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val s = BigInteger(1, Arrays.copyOfRange(signFromCard, 32 + i * 64, 64 + i * 64))
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val encodingSign = DerEncodingUtil.packSignDer(r, s, pbKey)
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unspentOutputs[i].scriptForBuild = encodingSign
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}
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val realTX = BTCUtils.buildTXForSend(outputAddress, myAddress, unspentOutputs, amount, change)
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return realTX.size
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}
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fun doSetFee(checkedRadioButtonId: Int) {
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when (checkedRadioButtonId) {
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R.id.rbMinimalFee ->
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if (minFee != null)
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etFee!!.setText(minFee)
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else
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etFee!!.setText("?")
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R.id.rbNormalFee ->
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if (normalFee != null)
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etFee!!.setText(normalFee)
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else
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etFee!!.setText("?")
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R.id.rbMaximumFee ->
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if (maxFee != null)
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etFee!!.setText(maxFee)
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else
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etFee!!.setText("?")
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}
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}
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}
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