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/*
* Copyright (C) 2008 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;
import android.app.settings.SettingsEnums;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.graphics.PixelFormat;
import android.os.AsyncResult;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.telephony.SubscriptionInfo;
import android.telephony.SubscriptionManager;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TabHost;
import android.widget.TabHost.OnTabChangeListener;
import android.widget.TabHost.TabContentFactory;
import android.widget.TabHost.TabSpec;
import android.widget.TabWidget;
import android.widget.TextView;
import android.widget.Toast;
import androidx.preference.Preference;
import androidx.preference.SwitchPreference;
import com.android.internal.telephony.CommandException;
import com.android.internal.telephony.Phone;
import com.android.internal.telephony.PhoneFactory;
import com.android.internal.telephony.TelephonyIntents;
/**
* Implements the preference screen to enable/disable ICC lock and
* also the dialogs to change the ICC PIN. In the former case, enabling/disabling
* the ICC lock will prompt the user for the current PIN.
* In the Change PIN case, it prompts the user for old pin, new pin and new pin
* again before attempting to change it. Calls the SimCard interface to execute
* these operations.
*
*/
public class IccLockSettings extends SettingsPreferenceFragment
implements EditPinPreference.OnPinEnteredListener {
private static final String TAG = "IccLockSettings";
private static final boolean DBG = true;
private static final int OFF_MODE = 0;
// State when enabling/disabling ICC lock
private static final int ICC_LOCK_MODE = 1;
// State when entering the old pin
private static final int ICC_OLD_MODE = 2;
// State when entering the new pin - first time
private static final int ICC_NEW_MODE = 3;
// State when entering the new pin - second time
private static final int ICC_REENTER_MODE = 4;
// Keys in xml file
private static final String PIN_DIALOG = "sim_pin";
private static final String PIN_TOGGLE = "sim_toggle";
// Keys in icicle
private static final String DIALOG_STATE = "dialogState";
private static final String DIALOG_PIN = "dialogPin";
private static final String DIALOG_ERROR = "dialogError";
private static final String ENABLE_TO_STATE = "enableState";
private static final String CURRENT_TAB = "currentTab";
// Save and restore inputted PIN code when configuration changed
// (ex. portrait<-->landscape) during change PIN code
private static final String OLD_PINCODE = "oldPinCode";
private static final String NEW_PINCODE = "newPinCode";
private static final int MIN_PIN_LENGTH = 4;
private static final int MAX_PIN_LENGTH = 8;
// Which dialog to show next when popped up
private int mDialogState = OFF_MODE;
private String mPin;
private String mOldPin;
private String mNewPin;
private String mError;
// Are we trying to enable or disable ICC lock?
private boolean mToState;
private TabHost mTabHost;
private TabWidget mTabWidget;
private ListView mListView;
private Phone mPhone;
private EditPinPreference mPinDialog;
private SwitchPreference mPinToggle;
private Resources mRes;
// For async handler to identify request type
private static final int MSG_ENABLE_ICC_PIN_COMPLETE = 100;
private static final int MSG_CHANGE_ICC_PIN_COMPLETE = 101;
private static final int MSG_SIM_STATE_CHANGED = 102;
// @see android.widget.Toast$TN
private static final long LONG_DURATION_TIMEOUT = 7000;
// For replies from IccCard interface
private Handler mHandler = new Handler() {
public void handleMessage(Message msg) {
AsyncResult ar = (AsyncResult) msg.obj;
switch (msg.what) {
case MSG_ENABLE_ICC_PIN_COMPLETE:
iccLockChanged(ar.exception == null, msg.arg1, ar.exception);
break;
case MSG_CHANGE_ICC_PIN_COMPLETE:
iccPinChanged(ar.exception == null, msg.arg1);
break;
case MSG_SIM_STATE_CHANGED:
updatePreferences();
break;
}
return;
}
};
private final BroadcastReceiver mSimStateReceiver = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (TelephonyIntents.ACTION_SIM_STATE_CHANGED.equals(action)) {
mHandler.sendMessage(mHandler.obtainMessage(MSG_SIM_STATE_CHANGED));
}
}
};
// For top-level settings screen to query
static boolean isIccLockEnabled() {
return PhoneFactory.getDefaultPhone().getIccCard().getIccLockEnabled();
}
static String getSummary(Context context) {
Resources res = context.getResources();
String summary = isIccLockEnabled()
? res.getString(R.string.sim_lock_on)
: res.getString(R.string.sim_lock_off);
return summary;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (Utils.isMonkeyRunning()) {
finish();
return;
}
addPreferencesFromResource(R.xml.sim_lock_settings);
mPinDialog = (EditPinPreference) findPreference(PIN_DIALOG);
mPinToggle = (SwitchPreference) findPreference(PIN_TOGGLE);
if (savedInstanceState != null && savedInstanceState.containsKey(DIALOG_STATE)) {
mDialogState = savedInstanceState.getInt(DIALOG_STATE);
mPin = savedInstanceState.getString(DIALOG_PIN);
mError = savedInstanceState.getString(DIALOG_ERROR);
mToState = savedInstanceState.getBoolean(ENABLE_TO_STATE);
// Restore inputted PIN code
switch (mDialogState) {
case ICC_NEW_MODE:
mOldPin = savedInstanceState.getString(OLD_PINCODE);
break;
case ICC_REENTER_MODE:
mOldPin = savedInstanceState.getString(OLD_PINCODE);
mNewPin = savedInstanceState.getString(NEW_PINCODE);
break;
case ICC_LOCK_MODE:
case ICC_OLD_MODE:
default:
break;
}
}
mPinDialog.setOnPinEnteredListener(this);
// Don't need any changes to be remembered
getPreferenceScreen().setPersistent(false);
mRes = getResources();
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final TelephonyManager tm =
(TelephonyManager) getContext().getSystemService(Context.TELEPHONY_SERVICE);
final int numSims = tm.getSimCount();
if (numSims > 1) {
View view = inflater.inflate(R.layout.icc_lock_tabs, container, false);
final ViewGroup prefs_container = (ViewGroup) view.findViewById(R.id.prefs_container);
Utils.prepareCustomPreferencesList(container, view, prefs_container, false);
View prefs = super.onCreateView(inflater, prefs_container, savedInstanceState);
prefs_container.addView(prefs);
mTabHost = (TabHost) view.findViewById(android.R.id.tabhost);
mTabWidget = (TabWidget) view.findViewById(android.R.id.tabs);
mListView = (ListView) view.findViewById(android.R.id.list);
mTabHost.setup();
mTabHost.setOnTabChangedListener(mTabListener);
mTabHost.clearAllTabs();
SubscriptionManager sm = SubscriptionManager.from(getContext());
for (int i = 0; i < numSims; ++i) {
final SubscriptionInfo subInfo = sm.getActiveSubscriptionInfoForSimSlotIndex(i);
mTabHost.addTab(buildTabSpec(String.valueOf(i),
String.valueOf(subInfo == null
? getContext().getString(R.string.sim_editor_title, i + 1)
: subInfo.getDisplayName())));
}
final SubscriptionInfo sir = sm.getActiveSubscriptionInfoForSimSlotIndex(0);
mPhone = (sir == null) ? null
: PhoneFactory.getPhone(SubscriptionManager.getPhoneId(sir.getSubscriptionId()));
if (savedInstanceState != null && savedInstanceState.containsKey(CURRENT_TAB)) {
mTabHost.setCurrentTabByTag(savedInstanceState.getString(CURRENT_TAB));
}
return view;
} else {
mPhone = PhoneFactory.getDefaultPhone();
return super.onCreateView(inflater, container, savedInstanceState);
}
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
updatePreferences();
}
private void updatePreferences() {
if (mPinDialog != null) {
mPinDialog.setEnabled(mPhone != null);
}
if (mPinToggle != null) {
mPinToggle.setEnabled(mPhone != null);
if (mPhone != null) {
mPinToggle.setChecked(mPhone.getIccCard().getIccLockEnabled());
}
}
}
@Override
public int getMetricsCategory() {
return SettingsEnums.ICC_LOCK;
}
@Override
public void onResume() {
super.onResume();
// ACTION_SIM_STATE_CHANGED is sticky, so we'll receive current state after this call,
// which will call updatePreferences().
final IntentFilter filter = new IntentFilter(TelephonyIntents.ACTION_SIM_STATE_CHANGED);
getContext().registerReceiver(mSimStateReceiver, filter);
if (mDialogState != OFF_MODE) {
showPinDialog();
} else {
// Prep for standard click on "Change PIN"
resetDialogState();
}
}
@Override
public void onPause() {
super.onPause();
getContext().unregisterReceiver(mSimStateReceiver);
}
@Override
public int getHelpResource() {
return R.string.help_url_icc_lock;
}
@Override
public void onSaveInstanceState(Bundle out) {
// Need to store this state for slider open/close
// There is one case where the dialog is popped up by the preference
// framework. In that case, let the preference framework store the
// dialog state. In other cases, where this activity manually launches
// the dialog, store the state of the dialog.
if (mPinDialog.isDialogOpen()) {
out.putInt(DIALOG_STATE, mDialogState);
out.putString(DIALOG_PIN, mPinDialog.getEditText().getText().toString());
out.putString(DIALOG_ERROR, mError);
out.putBoolean(ENABLE_TO_STATE, mToState);
// Save inputted PIN code
switch (mDialogState) {
case ICC_NEW_MODE:
out.putString(OLD_PINCODE, mOldPin);
break;
case ICC_REENTER_MODE:
out.putString(OLD_PINCODE, mOldPin);
out.putString(NEW_PINCODE, mNewPin);
break;
case ICC_LOCK_MODE:
case ICC_OLD_MODE:
default:
break;
}
} else {
super.onSaveInstanceState(out);
}
if (mTabHost != null) {
out.putString(CURRENT_TAB, mTabHost.getCurrentTabTag());
}
}
private void showPinDialog() {
if (mDialogState == OFF_MODE) {
return;
}
setDialogValues();
mPinDialog.showPinDialog();
final EditText editText = mPinDialog.getEditText();
if (!TextUtils.isEmpty(mPin) && editText != null) {
editText.setSelection(mPin.length());
}
}
private void setDialogValues() {
mPinDialog.setText(mPin);
String message = "";
switch (mDialogState) {
case ICC_LOCK_MODE:
message = mRes.getString(R.string.sim_enter_pin);
mPinDialog.setDialogTitle(mToState
? mRes.getString(R.string.sim_enable_sim_lock)
: mRes.getString(R.string.sim_disable_sim_lock));
break;
case ICC_OLD_MODE:
message = mRes.getString(R.string.sim_enter_old);
mPinDialog.setDialogTitle(mRes.getString(R.string.sim_change_pin));
break;
case ICC_NEW_MODE:
message = mRes.getString(R.string.sim_enter_new);
mPinDialog.setDialogTitle(mRes.getString(R.string.sim_change_pin));
break;
case ICC_REENTER_MODE:
message = mRes.getString(R.string.sim_reenter_new);
mPinDialog.setDialogTitle(mRes.getString(R.string.sim_change_pin));
break;
}
if (mError != null) {
message = mError + "\n" + message;
mError = null;
}
mPinDialog.setDialogMessage(message);
}
@Override
public void onPinEntered(EditPinPreference preference, boolean positiveResult) {
if (!positiveResult) {
resetDialogState();
return;
}
mPin = preference.getText();
if (!reasonablePin(mPin)) {
// inject error message and display dialog again
mError = mRes.getString(R.string.sim_bad_pin);
showPinDialog();
return;
}
switch (mDialogState) {
case ICC_LOCK_MODE:
tryChangeIccLockState();
break;
case ICC_OLD_MODE:
mOldPin = mPin;
mDialogState = ICC_NEW_MODE;
mError = null;
mPin = null;
showPinDialog();
break;
case ICC_NEW_MODE:
mNewPin = mPin;
mDialogState = ICC_REENTER_MODE;
mPin = null;
showPinDialog();
break;
case ICC_REENTER_MODE:
if (!mPin.equals(mNewPin)) {
mError = mRes.getString(R.string.sim_pins_dont_match);
mDialogState = ICC_NEW_MODE;
mPin = null;
showPinDialog();
} else {
mError = null;
tryChangePin();
}
break;
}
}
@Override
public boolean onPreferenceTreeClick(Preference preference) {
if (preference == mPinToggle) {
// Get the new, preferred state
mToState = mPinToggle.isChecked();
// Flip it back and pop up pin dialog
mPinToggle.setChecked(!mToState);
mDialogState = ICC_LOCK_MODE;
showPinDialog();
} else if (preference == mPinDialog) {
mDialogState = ICC_OLD_MODE;
return false;
}
return true;
}
private void tryChangeIccLockState() {
// Try to change icc lock. If it succeeds, toggle the lock state and
// reset dialog state. Else inject error message and show dialog again.
Message callback = Message.obtain(mHandler, MSG_ENABLE_ICC_PIN_COMPLETE);
mPhone.getIccCard().setIccLockEnabled(mToState, mPin, callback);
// Disable the setting till the response is received.
mPinToggle.setEnabled(false);
}
private void iccLockChanged(boolean success, int attemptsRemaining, Throwable exception) {
if (success) {
mPinToggle.setChecked(mToState);
} else {
if (exception instanceof CommandException) {
CommandException.Error err = ((CommandException)(exception)).getCommandError();
if (err == CommandException.Error.PASSWORD_INCORRECT) {
createCustomTextToast(getPinPasswordErrorMessage(attemptsRemaining));
} else {
if (mToState) {
Toast.makeText(getContext(), mRes.getString
(R.string.sim_pin_enable_failed), Toast.LENGTH_LONG).show();
} else {
Toast.makeText(getContext(), mRes.getString
(R.string.sim_pin_disable_failed), Toast.LENGTH_LONG).show();
}
}
}
}
mPinToggle.setEnabled(true);
resetDialogState();
}
private void createCustomTextToast(CharSequence errorMessage) {
// Cannot overlay Toast on PUK unlock screen.
// The window type of Toast is set by NotificationManagerService.
// It can't be overwritten by LayoutParams.type.
// Ovarlay a custom window with LayoutParams (TYPE_STATUS_BAR_PANEL) on PUK unlock screen.
View v = ((LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE))
.inflate(com.android.internal.R.layout.transient_notification, null);
TextView tv = (TextView) v.findViewById(com.android.internal.R.id.message);
tv.setText(errorMessage);
final WindowManager.LayoutParams params = new WindowManager.LayoutParams();
final Configuration config = v.getContext().getResources().getConfiguration();
final int gravity = Gravity.getAbsoluteGravity(
getContext().getResources().getInteger(
com.android.internal.R.integer.config_toastDefaultGravity),
config.getLayoutDirection());
params.gravity = gravity;
if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.FILL_HORIZONTAL) {
params.horizontalWeight = 1.0f;
}
if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.FILL_VERTICAL) {
params.verticalWeight = 1.0f;
}
params.y = getContext().getResources().getDimensionPixelSize(
com.android.internal.R.dimen.toast_y_offset);
params.height = WindowManager.LayoutParams.WRAP_CONTENT;
params.width = WindowManager.LayoutParams.WRAP_CONTENT;
params.format = PixelFormat.TRANSLUCENT;
params.windowAnimations = com.android.internal.R.style.Animation_Toast;
params.type = WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL;
params.setTitle(errorMessage);
params.flags = WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
| WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
| WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE;
WindowManager wm = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
wm.addView(v, params);
mHandler.postDelayed(new Runnable() {
@Override
public void run() {
wm.removeViewImmediate(v);
}
}, LONG_DURATION_TIMEOUT);
}
private void iccPinChanged(boolean success, int attemptsRemaining) {
if (!success) {
createCustomTextToast(getPinPasswordErrorMessage(attemptsRemaining));
} else {
Toast.makeText(getContext(), mRes.getString(R.string.sim_change_succeeded),
Toast.LENGTH_SHORT)
.show();
}
resetDialogState();
}
private void tryChangePin() {
Message callback = Message.obtain(mHandler, MSG_CHANGE_ICC_PIN_COMPLETE);
mPhone.getIccCard().changeIccLockPassword(mOldPin,
mNewPin, callback);
}
private String getPinPasswordErrorMessage(int attemptsRemaining) {
String displayMessage;
if (attemptsRemaining == 0) {
displayMessage = mRes.getString(R.string.wrong_pin_code_pukked);
} else if (attemptsRemaining > 0) {
displayMessage = mRes
.getQuantityString(R.plurals.wrong_pin_code, attemptsRemaining,
attemptsRemaining);
} else {
displayMessage = mRes.getString(R.string.pin_failed);
}
if (DBG) Log.d(TAG, "getPinPasswordErrorMessage:"
+ " attemptsRemaining=" + attemptsRemaining + " displayMessage=" + displayMessage);
return displayMessage;
}
private boolean reasonablePin(String pin) {
if (pin == null || pin.length() < MIN_PIN_LENGTH || pin.length() > MAX_PIN_LENGTH) {
return false;
} else {
return true;
}
}
private void resetDialogState() {
mError = null;
mDialogState = ICC_OLD_MODE; // Default for when Change PIN is clicked
mPin = "";
setDialogValues();
mDialogState = OFF_MODE;
}
private OnTabChangeListener mTabListener = new OnTabChangeListener() {
@Override
public void onTabChanged(String tabId) {
final int slotId = Integer.parseInt(tabId);
final SubscriptionInfo sir = SubscriptionManager.from(getActivity().getBaseContext())
.getActiveSubscriptionInfoForSimSlotIndex(slotId);
mPhone = (sir == null) ? null
: PhoneFactory.getPhone(SubscriptionManager.getPhoneId(sir.getSubscriptionId()));
// The User has changed tab; update the body.
updatePreferences();
}
};
private TabContentFactory mEmptyTabContent = new TabContentFactory() {
@Override
public View createTabContent(String tag) {
return new View(mTabHost.getContext());
}
};
private TabSpec buildTabSpec(String tag, String title) {
return mTabHost.newTabSpec(tag).setIndicator(title).setContent(
mEmptyTabContent);
}
}