Require password to FR in carrier demo mode (d7713c9d) · Commits · e / os / android_packages_apps_Settings

src/com/android/settings/MasterClear.java

+16 −2

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@ import android.accounts.Account;
		import android.accounts.AccountManager;
		import android.accounts.AuthenticatorDescription;
		import android.app.Activity;
		import android.app.FragmentManager;
		import android.content.Context;
		import android.content.Intent;
		import android.content.pm.PackageManager;
		@@ -46,6 +47,7 @@ import android.widget.ScrollView;
		import android.widget.TextView;

		import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
		import com.android.settings.widget.CarrierDemoPasswordDialogFragment;
		import com.android.settingslib.RestrictedLockUtils;

		import java.util.List;
		@@ -62,7 +64,8 @@ import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
		*
		* This is the initial screen.
		*/
		public class MasterClear extends OptionsMenuFragment {
		public class MasterClear extends OptionsMenuFragment
		implements CarrierDemoPasswordDialogFragment.Callback {
		private static final String TAG = "MasterClear";

		private static final int KEYGUARD_REQUEST = 55;
		@@ -127,12 +130,23 @@ public class MasterClear extends OptionsMenuFragment {
		private final Button.OnClickListener mInitiateListener = new Button.OnClickListener() {

		public void onClick(View v) {
		if (!runKeyguardConfirmation(KEYGUARD_REQUEST)) {
		if ( Utils.isCarrierDemoUser(v.getContext())) {
		// Require the carrier password before displaying the final confirmation.
		final FragmentManager fm = getChildFragmentManager();
		if (fm != null && !fm.isDestroyed()) {
		new CarrierDemoPasswordDialogFragment().show(fm, null /* tag */);
		}
		} else if (!runKeyguardConfirmation(KEYGUARD_REQUEST)) {
		showFinalConfirmation();
		}
		}
		};

		@Override
		public void onPasswordVerified() {
		showFinalConfirmation();
		}

		/**
		* In its initial state, the activity presents a button for the user to
		* click in order to initiate a confirmation sequence. This method is

src/com/android/settings/widget/CarrierDemoPasswordDialogFragment.java

0 → 100644

+144 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2017 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package com.android.settings.widget;

		import android.app.AlertDialog;
		import android.app.Dialog;
		import android.app.Fragment;
		import android.content.Context;
		import android.content.DialogInterface;
		import android.content.res.TypedArray;
		import android.os.Bundle;
		import android.text.Editable;
		import android.text.InputType;
		import android.text.TextUtils;
		import android.text.TextWatcher;
		import android.util.Log;
		import android.view.inputmethod.InputMethodManager;
		import android.widget.Button;
		import android.widget.EditText;

		import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
		import com.android.internal.util.HexDump;
		import com.android.settings.R;

		import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
		import java.security.MessageDigest;
		import java.security.NoSuchAlgorithmException;

		public class CarrierDemoPasswordDialogFragment extends InstrumentedDialogFragment {

		private static final String TAG = "CarrierDemoPasswordDF";

		private MessageDigest mMessageDigest;

		public CarrierDemoPasswordDialogFragment() {
		try {
		mMessageDigest = MessageDigest.getInstance("SHA-256");
		} catch (NoSuchAlgorithmException e) {
		Log.e(TAG, "Unable to verify demo mode password", e);
		}
		}

		@Override
		public Dialog onCreateDialog(Bundle savedInstanceState) {
		final AlertDialog dialog = new AlertDialog.Builder(getContext())
		.setPositiveButton(R.string.retail_demo_reset_next,
		new DialogInterface.OnClickListener() {
		@Override
		public void onClick(DialogInterface dialog, int which) {
		final Fragment parentFragment = getParentFragment();
		if (parentFragment instanceof Callback
		&& which == DialogInterface.BUTTON_POSITIVE) {
		((Callback) parentFragment).onPasswordVerified();
		}
		}
		})
		.setNegativeButton(android.R.string.cancel, null)
		.setMessage(R.string.retail_demo_reset_message)
		.setTitle(R.string.retail_demo_reset_title)
		.create();

		final Context context = dialog.getContext();
		final EditText passwordField = new EditText(context);
		passwordField.setSingleLine();
		passwordField.setInputType(InputType.TYPE_CLASS_TEXT
		\| InputType.TYPE_TEXT_VARIATION_PASSWORD);
		passwordField.addTextChangedListener(new TextWatcher() {
		@Override
		public void beforeTextChanged(CharSequence s, int start, int count, int after) {
		// no-op
		}

		@Override
		public void onTextChanged(CharSequence s, int start, int before, int count) {
		verifyPassword(dialog, passwordField.getText().toString());
		}

		@Override
		public void afterTextChanged(Editable s) {
		// no-op
		}
		});

		dialog.setOnShowListener(new DialogInterface.OnShowListener() {
		@Override
		public void onShow(DialogInterface dialogInterface) {
		verifyPassword(dialog, passwordField.getText().toString());
		passwordField.requestFocus();
		final InputMethodManager imm = (InputMethodManager) getContext().getSystemService(
		Context.INPUT_METHOD_SERVICE);
		imm.showSoftInput(passwordField, InputMethodManager.SHOW_IMPLICIT);
		}
		});
		dialog.setCanceledOnTouchOutside(false);

		final TypedArray a = context.obtainStyledAttributes(
		new int[] { android.R.attr.dialogPreferredPadding });
		final int sidePadding = a.getDimensionPixelSize(0, 0);
		dialog.setView(passwordField, sidePadding, 0, sidePadding, 0);
		a.recycle();

		return dialog;
		}

		private void verifyPassword(AlertDialog dialog, String input) {
		final Button positiveButton = dialog.getButton(DialogInterface.BUTTON_POSITIVE);
		if (mMessageDigest == null \|\| TextUtils.isEmpty(input)) {
		positiveButton.setEnabled(false);
		return;
		}
		final String passwordHash = getContext().getString(
		com.android.internal.R.string.config_carrierDemoModePassword);
		if (passwordHash == null \|\| TextUtils.isEmpty(passwordHash)) {
		// This device does not support carrier demo mode.
		return;
		}
		final byte[] inputDigest = mMessageDigest.digest(input.getBytes());
		final String inputHash = HexDump.toHexString(inputDigest, 0, inputDigest.length, false);
		positiveButton.setEnabled(TextUtils.equals(passwordHash, inputHash));
		}

		@Override
		public int getMetricsCategory() {
		return MetricsEvent.CARRIER_DEMO_MODE_PASSWORD;
		}

		public interface Callback {
		void onPasswordVerified();
		}
		}