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Code Issues Releases Wiki Activity

Added pin authentication

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This commit is contained in:
M66B 2019-10-20 12:17:04 +02:00
parent ff2a9f5b06
commit 3f8118a707
5 changed files with 237 additions and 61 deletions
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49
app/src/main/java/eu/faircode/email/FragmentOptionsPrivacy.java
View file

@ -19,8 +19,12 @@ package eu.faircode.email;
Copyright 2018-2019 by Marcel Bokhorst (M66B)
*/
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.Handler;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
@ -28,12 +32,15 @@ import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.widget.SwitchCompat;
import androidx.lifecycle.Lifecycle;
import androidx.preference.PreferenceManager;
@ -43,6 +50,7 @@ public class FragmentOptionsPrivacy extends FragmentBase implements SharedPrefer
private SwitchCompat swDisplayHidden;
private SwitchCompat swNoHistory;
private Spinner spBiometricsTimeout;
private Button btnPin;
private final static String[] RESET_OPTIONS = new String[]{
"disable_tracking", "display_hidden", "no_history", "biometrics_timeout"
@ -62,6 +70,7 @@ public class FragmentOptionsPrivacy extends FragmentBase implements SharedPrefer
swDisplayHidden = view.findViewById(R.id.swDisplayHidden);
swNoHistory = view.findViewById(R.id.swNoHistory);
spBiometricsTimeout = view.findViewById(R.id.spBiometricsTimeout);
btnPin = view.findViewById(R.id.btnPin);
setOptions();
@ -104,6 +113,14 @@ public class FragmentOptionsPrivacy extends FragmentBase implements SharedPrefer
}
});
btnPin.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
FragmentDialogPin fragment = new FragmentDialogPin();
fragment.show(getParentFragmentManager(), "pin");
}
});
PreferenceManager.getDefaultSharedPreferences(getContext()).registerOnSharedPreferenceChangeListener(this);
return view;
@ -162,4 +179,36 @@ public class FragmentOptionsPrivacy extends FragmentBase implements SharedPrefer
break;
}
}
public static class FragmentDialogPin extends FragmentDialogBase {
@NonNull
@Override
public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
final View dview = LayoutInflater.from(getContext()).inflate(R.layout.dialog_pin_set, null);
final EditText etPin = dview.findViewById(R.id.etPin);
new Handler().post(new Runnable() {
@Override
public void run() {
etPin.requestFocus();
}
});
return new AlertDialog.Builder(getContext())
.setView(dview)
.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
String pin = etPin.getText().toString();
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getContext());
if (TextUtils.isEmpty(pin))
prefs.edit().remove("pin").apply();
else
prefs.edit().putString("pin", pin).apply();
}
})
.setNegativeButton(android.R.string.cancel, null)
.create();
}
}
}

177
app/src/main/java/eu/faircode/email/Helper.java
View file

@ -47,12 +47,16 @@ import android.os.PowerManager;
import android.os.StatFs;
import android.text.Spannable;
import android.text.Spanned;
import android.text.TextUtils;
import android.text.format.DateUtils;
import android.text.format.Time;
import android.util.TypedValue;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
import android.view.inputmethod.EditorInfo;
import android.webkit.WebView;
import android.widget.Button;
import android.widget.CheckBox;
@ -793,6 +797,11 @@ public class Helper {
}
static boolean canAuthenticate(Context context) {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
String pin = prefs.getString("pin", null);
if (!TextUtils.isEmpty(pin))
return true;
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M)
return false;
else if (Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.Q) {
@ -810,8 +819,9 @@ public class Helper {
static boolean shouldAuthenticate(Context context) {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
boolean biometrics = prefs.getBoolean("biometrics", false);
String pin = prefs.getString("pin", null);
if (biometrics) {
if (biometrics || !TextUtils.isEmpty(pin)) {
long now = new Date().getTime();
long last_authentication = prefs.getLong("last_authentication", 0);
long biometrics_timeout = prefs.getInt("biometrics_timeout", 2) * 60 * 1000L;
@ -831,74 +841,119 @@ public class Helper {
Runnable authenticated, final Runnable cancelled) {
final Handler handler = new Handler();
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(activity);
String pin = prefs.getString("pin", null);
BiometricPrompt.PromptInfo.Builder info = new BiometricPrompt.PromptInfo.Builder()
.setTitle(activity.getString(enabled == null ? R.string.app_name : R.string.title_setup_biometrics));
if (enabled != null || TextUtils.isEmpty(pin)) {
BiometricPrompt.PromptInfo.Builder info = new BiometricPrompt.PromptInfo.Builder()
.setTitle(activity.getString(enabled == null ? R.string.app_name : R.string.title_setup_biometrics));
KeyguardManager kgm = (KeyguardManager) activity.getSystemService(Context.KEYGUARD_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && kgm != null && kgm.isDeviceSecure())
info.setDeviceCredentialAllowed(true);
else
info.setNegativeButtonText(activity.getString(android.R.string.cancel));
KeyguardManager kgm = (KeyguardManager) activity.getSystemService(Context.KEYGUARD_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && kgm != null && kgm.isDeviceSecure())
info.setDeviceCredentialAllowed(true);
else
info.setNegativeButtonText(activity.getString(android.R.string.cancel));
info.setSubtitle(activity.getString(enabled == null ? R.string.title_setup_biometrics_unlock
: enabled
? R.string.title_setup_biometrics_disable
: R.string.title_setup_biometrics_enable));
info.setSubtitle(activity.getString(enabled == null ? R.string.title_setup_biometrics_unlock
: enabled
? R.string.title_setup_biometrics_disable
: R.string.title_setup_biometrics_enable));
BiometricPrompt prompt = new BiometricPrompt(activity, executor,
new BiometricPrompt.AuthenticationCallback() {
@Override
public void onAuthenticationError(final int errorCode, @NonNull final CharSequence errString) {
Log.w("Biometric error " + errorCode + ": " + errString);
BiometricPrompt prompt = new BiometricPrompt(activity, executor,
new BiometricPrompt.AuthenticationCallback() {
@Override
public void onAuthenticationError(final int errorCode, @NonNull final CharSequence errString) {
Log.w("Biometric error " + errorCode + ": " + errString);
handler.post(new Runnable() {
@Override
public void run() {
if (errorCode == BiometricPrompt.ERROR_NEGATIVE_BUTTON ||
errorCode == BiometricPrompt.ERROR_CANCELED ||
errorCode == BiometricPrompt.ERROR_USER_CANCELED)
cancelled.run();
else
ToastEx.makeText(activity,
errString + " (" + errorCode + ")",
Toast.LENGTH_LONG).show();
}
});
}
@Override
public void onAuthenticationSucceeded(@NonNull BiometricPrompt.AuthenticationResult result) {
Log.i("Biometric succeeded");
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(activity);
prefs.edit().putLong("last_authentication", new Date().getTime()).apply();
handler.post(new Runnable() {
@Override
public void run() {
authenticated.run();
}
});
}
@Override
public void onAuthenticationFailed() {
Log.w("Biometric failed");
handler.post(new Runnable() {
@Override
public void run() {
if (errorCode != BiometricPrompt.ERROR_NEGATIVE_BUTTON &&
errorCode != BiometricPrompt.ERROR_CANCELED &&
errorCode != BiometricPrompt.ERROR_USER_CANCELED)
ToastEx.makeText(activity,
R.string.title_unexpected_error,
errString + " (" + errorCode + ")",
Toast.LENGTH_LONG).show();
cancelled.run();
}
});
}
});
prompt.authenticate(info.build());
handler.post(cancelled);
}
@Override
public void onAuthenticationSucceeded(@NonNull BiometricPrompt.AuthenticationResult result) {
Log.i("Biometric succeeded");
setAuthenticated(activity);
handler.post(authenticated);
}
@Override
public void onAuthenticationFailed() {
Log.w("Biometric failed");
ToastEx.makeText(activity,
R.string.title_unexpected_error,
Toast.LENGTH_LONG).show();
handler.post(cancelled);
}
});
prompt.authenticate(info.build());
} else {
final View dview = LayoutInflater.from(activity).inflate(R.layout.dialog_pin_ask, null);
final EditText etPin = dview.findViewById(R.id.etPin);
new Handler().post(new Runnable() {
@Override
public void run() {
etPin.requestFocus();
}
});
AlertDialog dialog = new AlertDialog.Builder(activity)
.setView(dview)
.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(activity);
String pin = prefs.getString("pin", "");
String entered = etPin.getText().toString();
if (pin.equals(entered)) {
setAuthenticated(activity);
handler.post(authenticated);
} else
handler.post(cancelled);
}
})
.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
handler.post(cancelled);
}
})
.setOnDismissListener(new DialogInterface.OnDismissListener() {
@Override
public void onDismiss(DialogInterface dialog) {
handler.post(cancelled);
}
})
.create();
etPin.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if (actionId == EditorInfo.IME_ACTION_DONE) {
dialog.getButton(DialogInterface.BUTTON_POSITIVE).performClick();
return true;
} else
return false;
}
});
dialog.show();
}
}
private static void setAuthenticated(Context context) {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
prefs.edit().putLong("last_authentication", new Date().getTime()).apply();
}
static void clearAuthentication(Context context) {

32
app/src/main/res/layout/dialog_pin_ask.xml Normal file
View file

@ -0,0 +1,32 @@
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="24dp">
<TextView
android:id="@+id/tvCaption"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:labelFor="@+id/etPin"
android:text="@string/app_name"
android:textAppearance="@style/TextAppearance.AppCompat.Large"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<EditText
android:id="@+id/etPin"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
android:focusable="true"
android:focusableInTouchMode="true"
android:hint="@string/title_advanced_pin"
android:imeOptions="actionDone"
android:inputType="numberPassword"
android:maxLines="1"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/tvCaption" />
</androidx.constraintlayout.widget.ConstraintLayout>

28
app/src/main/res/layout/dialog_pin_set.xml Normal file
View file

@ -0,0 +1,28 @@
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="24dp">
<TextView
android:id="@+id/tvCaption"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:labelFor="@+id/etPin"
android:text="@string/title_advanced_pin"
android:textAppearance="@style/TextAppearance.AppCompat.Large"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<EditText
android:id="@+id/etPin"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
android:inputType="number"
android:maxLines="1"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/tvCaption" />
</androidx.constraintlayout.widget.ConstraintLayout>

12
app/src/main/res/layout/fragment_options_privacy.xml
View file

@ -90,5 +90,17 @@
android:entries="@array/biometricsTimeoutNames"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/tvBiometricsTimeout" />
<Button
android:id="@+id/btnPin"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="12dp"
android:minWidth="0dp"
android:minHeight="0dp"
android:text="@string/title_advanced_pin"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/spBiometricsTimeout" />
</androidx.constraintlayout.widget.ConstraintLayout>
</ScrollView>