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Add support for biometric auth for payments.
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app/src/main/java/org/thoughtcrime/securesms/BiometricDeviceAuthentication.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| package org.thoughtcrime.securesms | ||
|
|
||
| import android.app.Activity | ||
| import android.content.Context | ||
| import android.content.Intent | ||
| import android.os.Build | ||
| import androidx.activity.result.contract.ActivityResultContract | ||
| import androidx.annotation.RequiresApi | ||
| import androidx.biometric.BiometricManager | ||
| import androidx.biometric.BiometricPrompt | ||
| import androidx.biometric.BiometricPrompt.PromptInfo | ||
| import org.signal.core.util.logging.Log | ||
| import org.thoughtcrime.securesms.util.ServiceUtil | ||
|
|
||
| /** | ||
| * Authentication using phone biometric (face, fingerprint recognition) or device lock (pattern, pin or passphrase). | ||
| */ | ||
| class BiometricDeviceAuthentication( | ||
| private val biometricManager: BiometricManager, | ||
| private val biometricPrompt: BiometricPrompt, | ||
| private val biometricPromptInfo: PromptInfo | ||
| ) { | ||
| companion object { | ||
| const val AUTHENTICATED = 1 | ||
| const val NOT_AUTHENTICATED = -1 | ||
| const val TAG: String = "BiometricDeviceAuth" | ||
| const val BIOMETRIC_AUTHENTICATORS = BiometricManager.Authenticators.BIOMETRIC_STRONG or BiometricManager.Authenticators.BIOMETRIC_WEAK | ||
| const val ALLOWED_AUTHENTICATORS = BIOMETRIC_AUTHENTICATORS or BiometricManager.Authenticators.DEVICE_CREDENTIAL | ||
| } | ||
|
|
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| fun authenticate(context: Context, force: Boolean, showConfirmDeviceCredentialIntent: () -> Unit): Boolean { | ||
| val isKeyGuardSecure = ServiceUtil.getKeyguardManager(context).isKeyguardSecure | ||
|
|
||
| if (!isKeyGuardSecure) { | ||
| Log.w(TAG, "Keyguard not secure...") | ||
| return false | ||
| } | ||
|
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| return if (Build.VERSION.SDK_INT != 29 && biometricManager.canAuthenticate(ALLOWED_AUTHENTICATORS) == BiometricManager.BIOMETRIC_SUCCESS) { | ||
| if (force) { | ||
| Log.i(TAG, "Listening for biometric authentication...") | ||
| biometricPrompt.authenticate(biometricPromptInfo) | ||
| } else { | ||
| Log.i(TAG, "Skipping show system biometric or device lock dialog unless forced") | ||
| } | ||
| true | ||
| } else if (force) { | ||
| if (force) { | ||
| Log.i(TAG, "firing intent...") | ||
| showConfirmDeviceCredentialIntent() | ||
| } else { | ||
| Log.i(TAG, "Skipping firing intent unless forced") | ||
| } | ||
| true | ||
| } else { | ||
| Log.w(TAG, "Not compatible...") | ||
| false | ||
| } | ||
| } | ||
|
|
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| fun cancelAuthentication() { | ||
| biometricPrompt.cancelAuthentication() | ||
| } | ||
| } | ||
|
|
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| class BiometricDeviceLockContract : ActivityResultContract<String, Int>() { | ||
|
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| @RequiresApi(api = 21) | ||
| override fun createIntent(context: Context, input: String): Intent { | ||
| val keyguardManager = ServiceUtil.getKeyguardManager(context) | ||
| return keyguardManager.createConfirmDeviceCredentialIntent(input, "") | ||
| } | ||
|
|
||
| override fun parseResult(resultCode: Int, intent: Intent?) = | ||
| if (resultCode != Activity.RESULT_OK) { | ||
| BiometricDeviceAuthentication.NOT_AUTHENTICATED | ||
| } else { | ||
| BiometricDeviceAuthentication.AUTHENTICATED | ||
| } | ||
| } |
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