kopia lustrzana https://github.com/ryukoposting/Signal-Android
76 wiersze
2.6 KiB
Kotlin
76 wiersze
2.6 KiB
Kotlin
package org.thoughtcrime.securesms
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import android.app.Activity
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import android.content.Context
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import android.content.Intent
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import android.os.Build
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import androidx.activity.result.contract.ActivityResultContract
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import androidx.biometric.BiometricManager
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import androidx.biometric.BiometricPrompt
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import androidx.biometric.BiometricPrompt.PromptInfo
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import org.signal.core.util.logging.Log
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import org.thoughtcrime.securesms.util.ServiceUtil
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/**
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* Authentication using phone biometric (face, fingerprint recognition) or device lock (pattern, pin or passphrase).
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*/
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class BiometricDeviceAuthentication(
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private val biometricManager: BiometricManager,
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private val biometricPrompt: BiometricPrompt,
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private val biometricPromptInfo: PromptInfo
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) {
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companion object {
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const val AUTHENTICATED = 1
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const val NOT_AUTHENTICATED = -1
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const val TAG: String = "BiometricDeviceAuth"
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const val BIOMETRIC_AUTHENTICATORS = BiometricManager.Authenticators.BIOMETRIC_STRONG or BiometricManager.Authenticators.BIOMETRIC_WEAK
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const val ALLOWED_AUTHENTICATORS = BIOMETRIC_AUTHENTICATORS or BiometricManager.Authenticators.DEVICE_CREDENTIAL
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}
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fun authenticate(context: Context, force: Boolean, showConfirmDeviceCredentialIntent: () -> Unit): Boolean {
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val isKeyGuardSecure = ServiceUtil.getKeyguardManager(context).isKeyguardSecure
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if (!isKeyGuardSecure) {
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Log.w(TAG, "Keyguard not secure...")
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return false
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}
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return if (Build.VERSION.SDK_INT != 29 && biometricManager.canAuthenticate(ALLOWED_AUTHENTICATORS) == BiometricManager.BIOMETRIC_SUCCESS) {
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if (force) {
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Log.i(TAG, "Listening for biometric authentication...")
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biometricPrompt.authenticate(biometricPromptInfo)
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} else {
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Log.i(TAG, "Skipping show system biometric or device lock dialog unless forced")
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}
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true
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} else {
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if (force) {
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Log.i(TAG, "firing intent...")
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showConfirmDeviceCredentialIntent()
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} else {
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Log.i(TAG, "Skipping firing intent unless forced")
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}
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true
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}
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}
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fun cancelAuthentication() {
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biometricPrompt.cancelAuthentication()
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}
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}
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class BiometricDeviceLockContract : ActivityResultContract<String, Int>() {
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override fun createIntent(context: Context, input: String): Intent {
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val keyguardManager = ServiceUtil.getKeyguardManager(context)
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return keyguardManager.createConfirmDeviceCredentialIntent(input, "")
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}
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override fun parseResult(resultCode: Int, intent: Intent?) =
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if (resultCode != Activity.RESULT_OK) {
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BiometricDeviceAuthentication.NOT_AUTHENTICATED
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} else {
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BiometricDeviceAuthentication.AUTHENTICATED
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}
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}
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