887c90d8af
- A crash in FP settings due to a null activity - FP settings launching confirm credentials twice on rotation Change-Id: Ie8c743a14e2a2f1adbdcf7693687fa66663c105d
490 lines
20 KiB
Java
490 lines
20 KiB
Java
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings;
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import android.app.Activity;
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import android.app.AlertDialog;
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import android.app.admin.DevicePolicyManager;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.graphics.drawable.Drawable;
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import android.os.Bundle;
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import android.os.CancellationSignal;
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import android.os.Handler;
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import android.preference.Preference;
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import android.preference.Preference.OnPreferenceChangeListener;
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import android.preference.PreferenceGroup;
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import android.preference.PreferenceScreen;
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import android.hardware.fingerprint.Fingerprint;
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import android.hardware.fingerprint.FingerprintManager;
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import android.hardware.fingerprint.FingerprintManager.AuthenticationCallback;
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import android.hardware.fingerprint.FingerprintManager.RemovalCallback;
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import android.hardware.fingerprint.FingerprintManager.AuthenticationResult;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.view.View;
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import android.widget.EditText;
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import android.widget.Toast;
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import com.android.internal.logging.MetricsLogger;
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import com.android.settings.search.Indexable;
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import java.util.List;
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/**
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* Settings screen for fingerprints
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*/
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public class FingerprintSettings extends SettingsActivity {
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/**
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* Used by the FP settings wizard to indicate the wizard is
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* finished, and each activity in the wizard should finish.
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* <p>
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* Previously, each activity in the wizard would finish itself after
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* starting the next activity. However, this leads to broken 'Back'
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* behavior. So, now an activity does not finish itself until it gets this
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* result.
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*/
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static final int RESULT_FINISHED = RESULT_FIRST_USER;
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@Override
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public Intent getIntent() {
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Intent modIntent = new Intent(super.getIntent());
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modIntent.putExtra(EXTRA_SHOW_FRAGMENT, FingerprintSettingsFragment.class.getName());
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return modIntent;
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}
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@Override
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protected boolean isValidFragment(String fragmentName) {
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if (FingerprintSettingsFragment.class.getName().equals(fragmentName)) return true;
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return false;
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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CharSequence msg = getText(R.string.security_settings_fingerprint_preference_title);
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setTitle(msg);
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}
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public static class FingerprintSettingsFragment extends SettingsPreferenceFragment
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implements OnPreferenceChangeListener, Indexable {
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private static final int MAX_RETRY_ATTEMPTS = 5;
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private static final String TAG = "FingerprintSettings";
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private static final String KEY_FINGERPRINT_ITEM_PREFIX = "key_fingerprint_item";
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private static final String KEY_USAGE_CATEGORY = "fingerprint_usage_category";
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private static final String KEY_FINGERPRINT_ADD = "key_fingerprint_add";
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private static final String KEY_MANAGE_CATEGORY = "fingerprint_manage_category";
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private static final String KEY_FINGERPRINT_ENABLE_KEYGUARD_TOGGLE =
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"fingerprint_enable_keyguard_toggle";
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private static final String KEY_LAUNCHED_CONFIRM = "launched_confirm";
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private static final int MSG_REFRESH_FINGERPRINT_TEMPLATES = 1000;
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private static final int MSG_HIGHLIGHT_FINGERPRINT_ITEM = 1001;
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private static final int CONFIRM_REQUEST = 101;
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private static final int CHOOSE_LOCK_GENERIC_REQUEST = 102;
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private static final int ADD_FINGERPRINT_REQUEST = 10;
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private static final boolean ENABLE_USAGE_CATEGORY = false;
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protected static final boolean DEBUG = true;
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private FingerprintManager mFingerprintManager;
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private EditText mDialogTextField;
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private PreferenceGroup mManageCategory;
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private CancellationSignal mFingerprintCancel;
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private int mMaxFingerprintAttempts;
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private byte[] mToken;
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private boolean mLaunchedConfirm;
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private AuthenticationCallback mAuthCallback = new AuthenticationCallback() {
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@Override
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public void onAuthenticationSucceeded(AuthenticationResult result) {
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mHandler.obtainMessage(MSG_HIGHLIGHT_FINGERPRINT_ITEM,
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result.getFingerprint().getFingerId(), 0).sendToTarget();
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retryFingerprint(true);
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}
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public void onAuthenticationFailed() {
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retryFingerprint(true);
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};
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@Override
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public void onAuthenticationError(int errMsgId, CharSequence errString) {
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// get activity will be null on a screen rotation
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if (getActivity() != null) {
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Toast.makeText(getActivity(), errString, Toast.LENGTH_SHORT);
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if (errMsgId != FingerprintManager.FINGERPRINT_ERROR_CANCELED) {
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retryFingerprint(false);
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}
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}
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}
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@Override
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public void onAuthenticationHelp(int helpMsgId, CharSequence helpString) {
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Toast.makeText(getActivity(), helpString, Toast.LENGTH_SHORT);
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}
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};
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private RemovalCallback mRemoveCallback = new RemovalCallback() {
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@Override
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public void onRemovalSucceeded(Fingerprint fingerprint) {
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mHandler.obtainMessage(MSG_REFRESH_FINGERPRINT_TEMPLATES,
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fingerprint.getFingerId(), 0).sendToTarget();
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}
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@Override
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public void onRemovalError(Fingerprint fp, int errMsgId, CharSequence errString) {
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Toast.makeText(getActivity(), errString, Toast.LENGTH_SHORT);
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}
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};
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private final Handler mHandler = new Handler() {
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public void handleMessage(android.os.Message msg) {
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switch (msg.what) {
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case MSG_REFRESH_FINGERPRINT_TEMPLATES:
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removeFingerprintPreference(msg.arg1);
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break;
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case MSG_HIGHLIGHT_FINGERPRINT_ITEM:
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highlightFingerprintItem(msg.arg1);
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break;
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}
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};
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};
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private void stopFingerprint() {
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if (mFingerprintCancel != null) {
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mFingerprintCancel.cancel();
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mFingerprintCancel = null;
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}
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}
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private void retryFingerprint(boolean resetAttempts) {
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if (resetAttempts) {
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mMaxFingerprintAttempts = 0;
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}
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if (mMaxFingerprintAttempts < MAX_RETRY_ATTEMPTS) {
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mFingerprintCancel = new CancellationSignal();
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mFingerprintManager.authenticate(null, mFingerprintCancel, mAuthCallback, 0);
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}
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mMaxFingerprintAttempts++;
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}
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@Override
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protected int getMetricsCategory() {
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return MetricsLogger.FINGERPRINT;
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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if (savedInstanceState != null) {
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mToken = savedInstanceState.getByteArray(
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ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN);
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mLaunchedConfirm = savedInstanceState.getBoolean(
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KEY_LAUNCHED_CONFIRM, false);
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}
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mFingerprintManager = (FingerprintManager) getActivity().getSystemService(
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Context.FINGERPRINT_SERVICE);
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// Need to authenticate a session token if none
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if (mToken == null && mLaunchedConfirm == false) {
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mLaunchedConfirm = true;
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launchChooseOrConfirmLock();
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}
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}
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protected void removeFingerprintPreference(int fingerprintId) {
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String name = genKey(fingerprintId);
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Preference prefToRemove = mManageCategory.findPreference(name);
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if (prefToRemove != null) {
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if (!mManageCategory.removePreference(prefToRemove)) {
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Log.w(TAG, "Failed to remove preference with key " + name);
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}
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} else {
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Log.w(TAG, "Can't find preference to remove: " + name);
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}
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}
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private void highlightFingerprintItem(int fpId) {
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String prefName = genKey(fpId);
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Preference pref = mManageCategory.findPreference(prefName);
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if (pref instanceof FingerprintPreference) {
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final FingerprintPreference fpref = (FingerprintPreference) pref;
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fpref.highlight();
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} else {
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Log.w(TAG, "Wrong pref " + (pref != null ? pref.getKey() : "null"));
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}
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}
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/**
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* Important!
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*
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* Don't forget to update the SecuritySearchIndexProvider if you are doing any change in the
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* logic or adding/removing preferences here.
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*/
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private PreferenceScreen createPreferenceHierarchy() {
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PreferenceScreen root = getPreferenceScreen();
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if (root != null) {
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root.removeAll();
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}
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addPreferencesFromResource(R.xml.security_settings_fingerprint);
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root = getPreferenceScreen();
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// Fingerprint items
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mManageCategory = (PreferenceGroup) root.findPreference(KEY_MANAGE_CATEGORY);
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if (mManageCategory != null) {
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addFingerprintItemPreferences(mManageCategory);
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}
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// Fingerprint usage options
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PreferenceGroup usageCategory = (PreferenceGroup) root.findPreference(
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KEY_USAGE_CATEGORY);
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if (usageCategory != null) {
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Preference toggle = root.findPreference(KEY_FINGERPRINT_ENABLE_KEYGUARD_TOGGLE);
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toggle.setOnPreferenceChangeListener(this);
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if (!ENABLE_USAGE_CATEGORY) {
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root.removePreference(usageCategory);
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} else {
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toggle.setOnPreferenceChangeListener(this);
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}
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}
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return root;
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}
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private void addFingerprintItemPreferences(PreferenceGroup manageFingerprintCategory) {
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manageFingerprintCategory.removeAll();
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final List<Fingerprint> items = mFingerprintManager.getEnrolledFingerprints();
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final int fingerprintCount = items.size();
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for (int i = 0; i < fingerprintCount; i++) {
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final Fingerprint item = items.get(i);
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FingerprintPreference pref = new FingerprintPreference(
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manageFingerprintCategory.getContext());
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pref.setKey(genKey(item.getFingerId()));
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pref.setTitle(item.getName());
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pref.setFingerprint(item);
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pref.setPersistent(false);
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manageFingerprintCategory.addPreference(pref);
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pref.setOnPreferenceChangeListener(this);
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}
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Preference addPreference = new Preference(manageFingerprintCategory.getContext());
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addPreference.setKey(KEY_FINGERPRINT_ADD);
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addPreference.setTitle(R.string.fingerprint_add_title);
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manageFingerprintCategory.addPreference(addPreference);
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addPreference.setOnPreferenceChangeListener(this);
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}
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private static String genKey(int id) {
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return KEY_FINGERPRINT_ITEM_PREFIX + "_" + id;
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}
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@Override
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public void onResume() {
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super.onResume();
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// Make sure we reload the preference hierarchy since fingerprints may be added,
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// deleted or renamed.
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createPreferenceHierarchy();
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retryFingerprint(true);
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}
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@Override
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public void onPause() {
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super.onPause();
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stopFingerprint();
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}
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@Override
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public void onSaveInstanceState(final Bundle outState) {
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outState.putByteArray(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN,
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mToken);
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outState.putBoolean(KEY_LAUNCHED_CONFIRM, mLaunchedConfirm);
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}
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@Override
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public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference pref) {
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final String key = pref.getKey();
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if (KEY_FINGERPRINT_ADD.equals(key)) {
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Intent intent = new Intent();
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intent.setClassName("com.android.settings", FingerprintEnroll.class.getName());
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intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN, mToken);
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stopFingerprint();
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startActivityForResult(intent, ADD_FINGERPRINT_REQUEST);
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} else if (pref instanceof FingerprintPreference) {
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FingerprintPreference fpref = (FingerprintPreference) pref;
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final Fingerprint fp =fpref.getFingerprint();
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showRenameDeleteDialog(pref, fp);
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return super.onPreferenceTreeClick(preferenceScreen, pref);
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}
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return true;
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}
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private void showRenameDeleteDialog(Preference pref, final Fingerprint fp) {
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final Activity activity = getActivity();
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AlertDialog dialog = new AlertDialog.Builder(activity)
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.setView(R.layout.fingerprint_rename_dialog)
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.setPositiveButton(R.string.security_settings_fingerprint_enroll_dialog_ok,
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new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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final String newName = mDialogTextField.getText().toString();
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final CharSequence name = fp.getName();
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if (!newName.equals(name)) {
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if (DEBUG) Log.v(TAG, "rename " + name + " to " + newName);
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mFingerprintManager.rename(fp.getFingerId(), newName);
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}
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dialog.dismiss();
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}
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})
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.setNegativeButton(R.string.security_settings_fingerprint_enroll_dialog_delete,
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new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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if (DEBUG) Log.v(TAG, "Removing fpId=" + fp.getFingerId());
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mFingerprintManager.remove(fp, mRemoveCallback);
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dialog.dismiss();
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}
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})
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.create();
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dialog.show();
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mDialogTextField = (EditText) dialog.findViewById(R.id.fingerprint_rename_field);
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mDialogTextField.setText(fp.getName());
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mDialogTextField.selectAll();
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}
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@Override
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public boolean onPreferenceChange(Preference preference, Object value) {
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boolean result = true;
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final String key = preference.getKey();
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if (KEY_FINGERPRINT_ENABLE_KEYGUARD_TOGGLE.equals(key)) {
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// TODO
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} else {
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Log.v(TAG, "Unknown key:" + key);
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}
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return result;
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}
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@Override
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protected int getHelpResource() {
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return R.string.help_url_security;
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}
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@Override
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public void onActivityResult(int requestCode, int resultCode, Intent data) {
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super.onActivityResult(requestCode, resultCode, data);
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if (requestCode == CHOOSE_LOCK_GENERIC_REQUEST
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|| requestCode == CONFIRM_REQUEST) {
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if (resultCode == RESULT_FINISHED || resultCode == RESULT_OK) {
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// The lock pin/pattern/password was set. Start enrolling!
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if (data != null) {
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mToken = data.getByteArrayExtra(
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ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN);
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}
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}
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}
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if (mToken == null) {
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// Didn't get an authentication, finishing
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getActivity().finish();
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}
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}
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private void launchChooseOrConfirmLock() {
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Intent intent = new Intent();
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long challenge = mFingerprintManager.preEnroll();
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ChooseLockSettingsHelper helper = new ChooseLockSettingsHelper(getActivity(), this);
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// TODO: update text or remove params from method
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if (!helper.launchConfirmationActivity(CONFIRM_REQUEST, null,
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null, null, challenge)) {
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intent.setClassName("com.android.settings", ChooseLockGeneric.class.getName());
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intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.MINIMUM_QUALITY_KEY,
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DevicePolicyManager.PASSWORD_QUALITY_SOMETHING);
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intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.HIDE_DISABLED_PREFS, true);
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intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, true);
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intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE, challenge);
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startActivityForResult(intent, CHOOSE_LOCK_GENERIC_REQUEST);
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}
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}
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}
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public static class FingerprintPreference extends Preference {
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private static final int RESET_HIGHLIGHT_DELAY_MS = 500;
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private Fingerprint mFingerprint;
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private View mView;
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private Drawable mHighlightDrawable;
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private Context mContext;
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public FingerprintPreference(Context context, AttributeSet attrs, int defStyleAttr,
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int defStyleRes) {
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super(context, attrs, defStyleAttr, defStyleRes);
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mContext = context;
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}
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public FingerprintPreference(Context context, AttributeSet attrs, int defStyleAttr) {
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this(context, attrs, defStyleAttr, 0);
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}
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public FingerprintPreference(Context context, AttributeSet attrs) {
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this(context, attrs, com.android.internal.R.attr.preferenceStyle);
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}
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public FingerprintPreference(Context context) {
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this(context, null);
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}
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public void setFingerprint(Fingerprint item) {
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mFingerprint = item;
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}
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public Fingerprint getFingerprint() {
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return mFingerprint;
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}
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private Drawable getHighlightDrawable() {
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if (mHighlightDrawable == null) {
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mHighlightDrawable = mContext.getDrawable(R.drawable.preference_highlight);
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}
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return mHighlightDrawable;
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}
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public void highlight() {
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Drawable highlight = getHighlightDrawable();
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final View view = mView;
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view.setBackground(highlight);
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final int centerX = view.getWidth() / 2;
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final int centerY = view.getHeight() / 2;
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highlight.setHotspot(centerX, centerY);
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view.setPressed(true);
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view.postDelayed(new Runnable() {
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@Override
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public void run() {
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view.setPressed(false);
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view.setBackground(null);
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}
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}, RESET_HIGHLIGHT_DELAY_MS);
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}
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@Override
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protected void onBindView(View view) {
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super.onBindView(view);
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mView = view;
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}
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};
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}
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