add warning and backup

app/src/main/java/com/lagradost/cloudstream3/MainActivity.kt

@@ -19,6 +19,7 @@ import android.view.View
 import android.view.ViewGroup
 import android.view.WindowManager
 import android.widget.Toast
+import android.widget.Toast.LENGTH_LONG
 import androidx.activity.OnBackPressedCallback
 import androidx.activity.result.ActivityResultLauncher
 import androidx.annotation.IdRes
@@ -1208,26 +1209,21 @@ class MainActivity : AppCompatActivity(), ColorPickerDialogListener, BiometricAu
         changeStatusBarState(isEmulatorSettings())
 
         /** Biometric stuff for users without accounts **/
-        val authEnabled = settingsManager.getBoolean(getString(R.string.biometric_enabled_key), false)
+        val authEnabled = settingsManager.getBoolean(getString(R.string.biometric_key), false)
         val noAccounts = settingsManager.getBoolean(getString(R.string.skip_startup_account_select_key), false) || accounts.count() <= 1
 
         if (isTruePhone() && authEnabled && noAccounts) {
             if (deviceHasPasswordPinLock(this)) {
-                startBiometricAuthentication(this,
-                    R.string.biometric_authentication_title,
-                    false
-                )
+                startBiometricAuthentication(this, R.string.biometric_authentication_title, false)
 
                 BiometricAuthenticator.promptInfo?.let {
-                    BiometricAuthenticator.biometricPrompt?.authenticate(
-                        it
-                    )
+                    BiometricAuthenticator.biometricPrompt?.authenticate(it)
                 }
 
                 // hide background while authenticating, Sorry moms & dads 🙏
                 binding?.navHostFragment?.isInvisible = true
             } else {
-                showToast(R.string.phone_not_secured, Toast.LENGTH_LONG)
+                showToast(R.string.phone_not_secured, LENGTH_LONG)
             }
         }
 

app/src/main/java/com/lagradost/cloudstream3/ui/account/AccountSelectActivity.kt

@@ -47,7 +47,7 @@ class AccountSelectActivity : AppCompatActivity(), BiometricAuthenticator.Biomet
         )
 
         val settingsManager = PreferenceManager.getDefaultSharedPreferences(this)
-        val authEnabled = settingsManager.getBoolean(getString(R.string.biometric_enabled_key), false)
+        val authEnabled = settingsManager.getBoolean(getString(R.string.biometric_key), false)
         val skipStartup = settingsManager.getBoolean(getString(R.string.skip_startup_account_select_key), false
         ) || accounts.count() <= 1
 
@@ -57,11 +57,8 @@ class AccountSelectActivity : AppCompatActivity(), BiometricAuthenticator.Biomet
 
             if (isTruePhone() && authEnabled) {
                 if (deviceHasPasswordPinLock(this)) {
-                    startBiometricAuthentication(
-                        this,
-                        R.string.biometric_authentication_title,
-                        false
-                    )
+                    startBiometricAuthentication(this, R.string.biometric_authentication_title, false)
+
                     BiometricAuthenticator.promptInfo?.let {
                         BiometricAuthenticator.biometricPrompt?.authenticate(it)
                     }

app/src/main/java/com/lagradost/cloudstream3/ui/settings/SettingsAccount.kt

@@ -13,6 +13,7 @@ import androidx.fragment.app.FragmentActivity
 import androidx.preference.PreferenceFragmentCompat
 import androidx.recyclerview.widget.RecyclerView
 import com.lagradost.cloudstream3.AcraApplication.Companion.openBrowser
+import com.lagradost.cloudstream3.CommonActivity.onDialogDismissedEvent
 import com.lagradost.cloudstream3.CommonActivity.showToast
 import com.lagradost.cloudstream3.R
 import com.lagradost.cloudstream3.databinding.AccountManagmentBinding
@@ -32,7 +33,10 @@ import com.lagradost.cloudstream3.ui.settings.SettingsFragment.Companion.isTvSet
 import com.lagradost.cloudstream3.ui.settings.SettingsFragment.Companion.setPaddingBottom
 import com.lagradost.cloudstream3.ui.settings.SettingsFragment.Companion.setToolBarScrollFlags
 import com.lagradost.cloudstream3.ui.settings.SettingsFragment.Companion.setUpToolbar
+import com.lagradost.cloudstream3.utils.AppUtils.html
+import com.lagradost.cloudstream3.utils.BackupUtils
 import com.lagradost.cloudstream3.utils.Coroutines.ioSafe
+import com.lagradost.cloudstream3.utils.SingleSelectionHelper.showBottomDialogText
 import com.lagradost.cloudstream3.utils.UIHelper.dismissSafe
 import com.lagradost.cloudstream3.utils.UIHelper.hideKeyboard
 import com.lagradost.cloudstream3.utils.UIHelper.setImage
@@ -256,6 +260,19 @@ class SettingsAccount : PreferenceFragmentCompat() {
         hideKeyboard()
         setPreferencesFromResource(R.xml.settings_account, rootKey)
 
+        getPref(R.string.biometric_key)?.setOnPreferenceClickListener {
+
+                BackupUtils.backup(activity)
+                val title = activity?.getString(R.string.biometric_setting)
+                val warning = activity?.getString(R.string.biometric_warning)
+                    activity?.showBottomDialogText(
+                        title as String,
+                        warning.html()
+                    ) { onDialogDismissedEvent }
+
+            true
+        }
+
         val syncApis =
             listOf(
                 R.string.mal_key to malApi,

app/src/main/java/com/lagradost/cloudstream3/utils/BackupUtils.kt

@@ -66,6 +66,7 @@ object BackupUtils {
 
         OPEN_SUBTITLES_USER_KEY,
         "nginx_user", // Nginx user key
+        "biometric_key" // can lock down users if backup is shared on a incompatible device
     )
 
     /** false if blacklisted key */

app/src/main/java/com/lagradost/cloudstream3/utils/BiometricAuthenticator.kt

@@ -5,7 +5,6 @@ import android.app.KeyguardManager
 import android.content.Context
 import android.os.Build
 import android.util.Log
-import android.widget.Toast.LENGTH_SHORT
 import androidx.appcompat.app.AppCompatActivity
 import androidx.biometric.BiometricManager
 import androidx.biometric.BiometricManager.Authenticators.BIOMETRIC_STRONG
@@ -41,9 +40,10 @@ object BiometricAuthenticator {
 
                 override fun onAuthenticationError(errorCode: Int, errString: CharSequence) {
                     super.onAuthenticationError(errorCode, errString)
-                    showToast("$errString", LENGTH_SHORT)
+                    showToast("$errString")
                     Log.e(TAG, "$errorCode")
                     failedAttempts++
+
                     if (failedAttempts >= MAX_FAILED_ATTEMPTS) {
                         failedAttempts = 0
                         activity.finish()
@@ -70,6 +70,7 @@ object BiometricAuthenticator {
             })
     }
 
+    @Suppress("DEPRECATION")
     // authentication dialog prompt builder
     private fun authenticationDialog(
         activity: Activity,
@@ -77,6 +78,7 @@ object BiometricAuthenticator {
         setDeviceCred: Boolean,
     ) {
         val description = activity.getString(R.string.biometric_prompt_description)
+
         if (setDeviceCred) {
             // For API level > 30, Newer API setAllowedAuthenticators is used
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
@@ -87,17 +89,18 @@ object BiometricAuthenticator {
                     .setDescription(description)
                     .setAllowedAuthenticators(authFlag)
                     .build()
+
             } else {
-                @Suppress("DEPRECATION")
+                // for apis < 30
                 promptInfo = BiometricPrompt.PromptInfo.Builder()
                     .setTitle(activity.getString(title))
                     .setDescription(description)
                     .setDeviceCredentialAllowed(true)
                     .build()
             }
+
         } else {
             // fallback for A12+ when both fingerprint & Face unlock is absent but PIN is set
-            @Suppress("DEPRECATION")
             promptInfo = BiometricPrompt.PromptInfo.Builder()
                 .setTitle(activity.getString(title))
                 .setDescription(description)
@@ -107,9 +110,11 @@ object BiometricAuthenticator {
     }
 
     private fun isBiometricHardWareAvailable(): Boolean {
+        // authentication occurs only when this is true and device is truly capable
         var result = false
 
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+
             when (biometricManager?.canAuthenticate(
                 DEVICE_CREDENTIAL or BIOMETRIC_STRONG or BIOMETRIC_WEAK
             )) {
@@ -121,6 +126,7 @@ object BiometricAuthenticator {
                 BiometricManager.BIOMETRIC_ERROR_UNSUPPORTED -> result = true
                 BiometricManager.BIOMETRIC_STATUS_UNKNOWN -> result = false
             }
+
         } else {
             @Suppress("DEPRECATION")
             when (biometricManager?.canAuthenticate()) {
@@ -137,7 +143,7 @@ object BiometricAuthenticator {
         return result
     }
 
-    // checks if device is secured or not
+    // checks if device is secured i.e has at least some type of lock
     fun deviceHasPasswordPinLock(context: Context?): Boolean {
         val keyMgr =
             context?.getSystemService(AppCompatActivity.KEYGUARD_SERVICE) as? KeyguardManager
@@ -160,7 +166,7 @@ object BiometricAuthenticator {
                 promptInfo?.let { biometricPrompt?.authenticate(it) }
 
             } else {
-                showToast(R.string.biometric_unsupported, LENGTH_SHORT)
+                showToast(R.string.biometric_unsupported)
             }
         }
     }

app/src/main/res/values/strings.xml

@@ -747,11 +747,13 @@
 
     <!-- For Biometrics -->
     <string name="biometric_authentication_title">Unlock CloudStream</string>
-    <string name="biometric_setting">Fingerprint sensor authentication</string>
-    <string name="biometric_enabled_key" translatable="false">biometric_key</string>
+    <string name="biometric_setting">Fingerprint/Face unlock authentication</string>
+    <string name="biometric_key" translatable="false">biometric_key</string>
     <string name="password_pin_authentication_title">Password/PIN Authentication</string>
     <string name="biometric_unsupported">Biometric authentication is not supported on this device</string>
     <string name="phone_not_secured">Please disable fingerprint authentication if device has no lock.</string>
     <string name="biometric_prompt_description">This window will close after few failed attempts. You\'ll have to restart the App.</string>
-
+    <string name="biometric_warning">Your CloudStream data has been backed up now, although probability of this rare case is very low but all
+        devices behave differently, in case you get locked down from accessing the app in worst case scenario,
+    Clear the app data wholly and restore the backup. Any inconvenience if arrived is deeply regretted.</string>
 </resources>

app/src/main/res/xml/settings_account.xml

@@ -24,7 +24,7 @@
         android:title="@string/skip_startup_account_select_pref" />
 
     <SwitchPreferenceCompat
-        android:key="@string/biometric_enabled_key"
+        android:key="@string/biometric_key"
         android:defaultValue="false"
         android:icon="@drawable/ic_fingerprint"
         android:title="@string/biometric_setting" />