Updated on 2026-08-14
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Tangem
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449840473a
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64ddaa4541
63 changed files with 128 additions and 164 deletions
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package com.tangem.presentation.activity
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import android.Manifest
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import android.annotation.SuppressLint
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import android.annotation.TargetApi
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import android.app.Activity
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import android.app.KeyguardManager
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import android.content.Context
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import android.content.Intent
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import android.content.pm.PackageManager
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import android.hardware.fingerprint.FingerprintManager
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import android.nfc.NfcAdapter
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import android.nfc.Tag
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import android.os.Build
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import android.os.Bundle
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import androidx.core.app.ActivityCompat
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import androidx.appcompat.app.AppCompatActivity
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import android.text.TextUtils
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import android.util.Log
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import android.view.View
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import android.widget.Button
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import com.tangem.Constant
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import com.tangem.data.fingerprint.StartFingerprintReaderTask
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import com.tangem.cardandroid.android.reader.NfcManager
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import com.tangem.data.fingerprint.FingerprintHelper
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import com.tangem.domain.wallet.TangemContext
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import com.tangem.cardandroid.android.data.PINStorage
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import com.tangem.cardandroid.android.nfc.NfcLifecycleObserver
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import com.tangem.cardandroid.data.loadFromBundle
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import com.tangem.cardandroid.data.EXTRA_TANGEM_CARD
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import com.tangem.cardandroid.data.EXTRA_TANGEM_CARD_UID
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import com.tangem.cardcommon.data.TangemCard
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import com.tangem.util.LOG
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import com.tangem.wallet.R
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import kotlinx.android.synthetic.main.activity_pin_request.*
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import kotlinx.android.synthetic.main.layout_pin_buttons.*
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import java.io.IOException
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class PinRequestActivity : AppCompatActivity(), NfcAdapter.ReaderCallback, FingerprintHelper.FingerprintHelperListener {
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companion object {
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val TAG: String = PinRequestActivity::class.java.simpleName
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fun callingIntent(context: Activity, mode: String): Intent {
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val intent = Intent(context, PinRequestActivity::class.java)
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intent.putExtra(Constant.EXTRA_MODE, mode)
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return intent
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}
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fun callingIntentRequestPin(context: Activity, mode: String, ctx: TangemContext, newPIN: String): Intent {
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val intent = Intent(context, PinRequestActivity::class.java)
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intent.putExtra(Constant.EXTRA_MODE, mode)
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intent.putExtra(Constant.EXTRA_NEW_PIN, newPIN)
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ctx.saveToIntent(intent)
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return intent
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}
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fun callingIntentRequestPin2(context: Activity, mode: String, ctx: TangemContext, newPIN2: String): Intent {
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val intent = Intent(context, PinRequestActivity::class.java)
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intent.putExtra(Constant.EXTRA_MODE, mode)
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intent.putExtra(Constant.EXTRA_NEW_PIN_2, newPIN2)
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ctx.saveToIntent(intent)
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return intent
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}
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fun callingIntentRequestPin2(context: Activity, mode: String, ctx: TangemContext): Intent {
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val intent = Intent(context, PinRequestActivity::class.java)
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intent.putExtra(Constant.EXTRA_MODE, mode)
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ctx.saveToIntent(intent)
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return intent
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}
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fun callingIntentConfirmPin(context: Activity, mode: String, newPIN: String): Intent {
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val intent = Intent(context, PinRequestActivity::class.java)
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intent.putExtra(Constant.EXTRA_MODE, mode)
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intent.putExtra(Constant.EXTRA_NEW_PIN, newPIN)
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return intent
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}
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fun callingIntentConfirmPin2(context: Activity, mode: String, newPIN2: String): Intent {
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val intent = Intent(context, PinRequestActivity::class.java)
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intent.putExtra(Constant.EXTRA_MODE, mode)
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intent.putExtra(Constant.EXTRA_NEW_PIN_2, newPIN2)
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return intent
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}
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}
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private lateinit var nfcManager: NfcManager
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lateinit var mode: Mode
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private var allowFingerprint = false
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var startFingerprintReaderTask: StartFingerprintReaderTask? = null
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private var fingerprintManager: FingerprintManager? = null
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private var fingerprintHelper: FingerprintHelper? = null
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enum class Mode {
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RequestPIN, RequestPIN2, RequestNewPIN, RequestNewPIN2, ConfirmNewPIN, ConfirmNewPIN2
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}
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.activity_pin_request)
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nfcManager = NfcManager(this, this)
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lifecycle.addObserver(NfcLifecycleObserver(nfcManager))
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mode = Mode.valueOf(intent.getStringExtra(Constant.EXTRA_MODE))
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if (mode == Mode.RequestNewPIN)
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if (PINStorage.haveEncryptedPIN()) {
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allowFingerprint = true
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tvPinPrompt.setText(R.string.enter_new_pin_or_use_fingerprint_scanner)
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} else
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tvPinPrompt.setText(R.string.enter_new_pin)
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else if (mode == Mode.ConfirmNewPIN)
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tvPinPrompt.setText(R.string.confirm_new_pin)
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else if (mode == Mode.RequestPIN)
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if (PINStorage.haveEncryptedPIN()) {
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allowFingerprint = true
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tvPinPrompt.setText(R.string.enter_pin_or_use_fingerprint_scanner)
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} else
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tvPinPrompt.setText(R.string.enter_pin)
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else if (mode == Mode.RequestNewPIN2)
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if (PINStorage.haveEncryptedPIN2()) {
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allowFingerprint = true
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tvPinPrompt.setText(R.string.enter_new_pin_2_or_use_fingerprint_scanner)
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} else
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tvPinPrompt.setText(R.string.enter_new_pin_2)
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else if (mode == Mode.ConfirmNewPIN2)
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tvPinPrompt.setText(R.string.confirm_new_pin_2)
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else if (mode == Mode.RequestPIN2) {
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val uid = intent.getStringExtra(EXTRA_TANGEM_CARD_UID)
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val card = TangemCard(uid)
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card.loadFromBundle(intent.getBundleExtra(EXTRA_TANGEM_CARD))
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if (card.PIN2 == TangemCard.PIN2_Mode.DefaultPIN2 || card.PIN2 == TangemCard.PIN2_Mode.Unchecked) {
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// if we know PIN2 or not try default previously - use it
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PINStorage.setPIN2(PINStorage.getDefaultPIN2())
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setResult(Activity.RESULT_OK)
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finish()
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return
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}
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if (PINStorage.haveEncryptedPIN2()) {
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allowFingerprint = true
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tvPinPrompt.setText(R.string.enter_pin_2_or_use_fingerprint_scanner)
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} else
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tvPinPrompt.setText(R.string.enter_pin_2)
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}
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if (!allowFingerprint)
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tvPinPrompt.visibility = View.GONE
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else
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tvPinPrompt.visibility = View.VISIBLE
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// set listeners
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btn0.setOnClickListener { buttonClick(btn0) }
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btn1.setOnClickListener { buttonClick(btn1) }
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btn2.setOnClickListener { buttonClick(btn2) }
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btn3.setOnClickListener { buttonClick(btn3) }
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btn4.setOnClickListener { buttonClick(btn4) }
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btn5.setOnClickListener { buttonClick(btn5) }
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btn6.setOnClickListener { buttonClick(btn6) }
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btn7.setOnClickListener { buttonClick(btn7) }
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btn8.setOnClickListener { buttonClick(btn8) }
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btn9.setOnClickListener { buttonClick(btn9) }
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btnBackspace.setOnClickListener {
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val s = tvPin!!.text.toString()
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if (s.isNotEmpty())
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tvPin!!.text = s.substring(0, s.length - 1)
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}
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btnContinue.setOnClickListener { doContinue() }
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}
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override fun onPause() {
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super.onPause()
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fingerprintHelper?.cancel()
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if (startFingerprintReaderTask != null) {
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startFingerprintReaderTask!!.cancel(true)
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startFingerprintReaderTask = null
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}
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}
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override fun onStop() {
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super.onStop()
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fingerprintHelper?.cancel()
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if (startFingerprintReaderTask != null) {
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startFingerprintReaderTask!!.cancel(true)
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startFingerprintReaderTask = null
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}
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}
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override fun onResume() {
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super.onResume()
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if (allowFingerprint)
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startFingerprintReader()
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}
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override fun onTagDiscovered(tag: Tag) {
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try {
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Log.w(javaClass.name, "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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override fun authenticationFailed(error: String) {
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LOG.w(TAG, error)
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}
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@TargetApi(Build.VERSION_CODES.M)
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override fun authenticationSucceeded(result: FingerprintManager.AuthenticationResult) {
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LOG.i(TAG, "Authentication succeeded!")
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val cipher = result.cryptoObject.cipher
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if (mode == Mode.RequestNewPIN || mode == Mode.ConfirmNewPIN) {
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val resultData = Intent()
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val pin = PINStorage.loadEncryptedPIN(cipher)
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resultData.putExtra("newPIN", pin)
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resultData.putExtra("confirmPIN", pin)
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setResult(Activity.RESULT_OK, resultData)
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finish()
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} else if (mode == Mode.RequestNewPIN2 || mode == Mode.ConfirmNewPIN2) {
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val resultData = Intent()
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val pin = PINStorage.loadEncryptedPIN2(cipher)
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resultData.putExtra("newPIN2", pin)
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resultData.putExtra("confirmPIN2", pin)
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setResult(Activity.RESULT_OK, resultData)
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finish()
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} else if (mode == Mode.RequestPIN) {
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PINStorage.loadEncryptedPIN(cipher)
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setResult(Activity.RESULT_OK)
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} else if (mode == Mode.RequestPIN2) {
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PINStorage.loadEncryptedPIN2(cipher)
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setResult(Activity.RESULT_OK)
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}
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finish()
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}
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private fun buttonClick(button: Button) {
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tvPin.text = tvPin.text.toString() + button.text.toString()
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}
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@SuppressLint("NewApi")
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private fun testFingerPrintSettings(): Boolean {
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LOG.i(TAG, "Testing Fingerprint Settings")
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val keyguardManager = getSystemService(Context.KEYGUARD_SERVICE) as KeyguardManager
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fingerprintManager = getSystemService(Context.FINGERPRINT_SERVICE) as FingerprintManager
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if (!keyguardManager.isKeyguardSecure) {
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LOG.i(TAG, "User hasn't enabled Lock Screen")
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return false
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}
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if (ActivityCompat.checkSelfPermission(this, Manifest.permission.USE_FINGERPRINT) != PackageManager.PERMISSION_GRANTED) {
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LOG.i(TAG, "User hasn't granted permission to use Fingerprint")
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return false
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}
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if (!fingerprintManager!!.hasEnrolledFingerprints()) {
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LOG.i(TAG, "User hasn't registered any fingerprints")
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return false
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}
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LOG.i(TAG, "Fingerprint authentication is set.\n")
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return true
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}
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private fun startFingerprintReader() {
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if (!testFingerPrintSettings())
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return
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if (!allowFingerprint)
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return
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fingerprintHelper = FingerprintHelper(this@PinRequestActivity)
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startFingerprintReaderTask = StartFingerprintReaderTask(this, fingerprintManager, fingerprintHelper)
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startFingerprintReaderTask!!.execute(null as Void?)
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}
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private fun doContinue() {
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if (startFingerprintReaderTask != null)
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return
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// reset errors.
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tvPin!!.error = null
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// store values at the time of the login attempt.
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val pin = tvPin!!.text.toString()
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var cancel = false
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var focusView: View? = null
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if (mode == Mode.ConfirmNewPIN) {
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if (pin != intent.getStringExtra("newPIN")) {
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tvPin!!.error = getString(R.string.error_pin_confirmation_failed)
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focusView = tvPin
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cancel = true
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}
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} else if (mode == Mode.ConfirmNewPIN2) {
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if (pin != intent.getStringExtra("newPIN2")) {
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tvPin!!.error = getString(R.string.error_pin_confirmation_failed)
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focusView = tvPin
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cancel = true
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}
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} else {
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if (TextUtils.isEmpty(pin)) {
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tvPin!!.error = getString(R.string.error_empty_pin)
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focusView = tvPin
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cancel = true
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}
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}
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if (cancel)
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focusView!!.requestFocus()
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else {
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if (mode == Mode.RequestNewPIN || mode == Mode.ConfirmNewPIN) {
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val resultData = Intent()
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resultData.putExtra("newPIN", pin)
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if (mode == Mode.ConfirmNewPIN)
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resultData.putExtra("confirmPIN", pin)
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setResult(Activity.RESULT_OK, resultData)
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finish()
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} else if (mode == Mode.RequestNewPIN2 || mode == Mode.ConfirmNewPIN2) {
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val resultData = Intent()
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resultData.putExtra("newPIN2", pin)
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if (mode == Mode.ConfirmNewPIN2)
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resultData.putExtra("confirmPIN2", pin)
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setResult(Activity.RESULT_OK, resultData)
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finish()
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} else if (mode == Mode.RequestPIN) {
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PINStorage.setUserPIN(pin)
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setResult(Activity.RESULT_OK)
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finish()
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} else if (mode == Mode.RequestPIN2) {
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PINStorage.setPIN2(pin)
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setResult(Activity.RESULT_OK)
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finish()
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}
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}
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}
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}
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