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/*
* Copyright (C) 2020 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.keyguard;
import android.annotation.NonNull;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.res.ColorStateList;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.Color;
import android.telephony.PinResult;
import android.telephony.SubscriptionInfo;
import android.telephony.SubscriptionManager;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.view.View;
import android.view.WindowManager;
import android.widget.ImageView;
import com.android.internal.util.LatencyTracker;
import com.android.internal.widget.LockPatternUtils;
import com.android.keyguard.KeyguardSecurityModel.SecurityMode;
import com.android.systemui.R;
import com.android.systemui.classifier.FalsingCollector;
public class KeyguardSimPinViewController
extends KeyguardPinBasedInputViewController<KeyguardSimPinView> {
public static final String TAG = "KeyguardSimPinView";
private static final String LOG_TAG = "KeyguardSimPinView";
private static final boolean DEBUG = KeyguardConstants.DEBUG_SIM_STATES;
private final KeyguardUpdateMonitor mKeyguardUpdateMonitor;
private final TelephonyManager mTelephonyManager;
private ProgressDialog mSimUnlockProgressDialog;
private CheckSimPin mCheckSimPinThread;
private int mRemainingAttempts;
// Below flag is set to true during power-up or when a new SIM card inserted on device.
// When this is true and when SIM card is PIN locked state, on PIN lock screen, message would
// be displayed to inform user about the number of remaining PIN attempts left.
private boolean mShowDefaultMessage;
private int mSubId = SubscriptionManager.INVALID_SUBSCRIPTION_ID;
private AlertDialog mRemainingAttemptsDialog;
private ImageView mSimImageView;
KeyguardUpdateMonitorCallback mUpdateMonitorCallback = new KeyguardUpdateMonitorCallback() {
@Override
public void onSimStateChanged(int subId, int slotId, int simState) {
if (DEBUG) Log.v(TAG, "onSimStateChanged(subId=" + subId + ",state=" + simState + ")");
if (simState == TelephonyManager.SIM_STATE_READY) {
mRemainingAttempts = -1;
resetState();
} else {
resetState();
}
}
};
protected KeyguardSimPinViewController(KeyguardSimPinView view,
KeyguardUpdateMonitor keyguardUpdateMonitor,
SecurityMode securityMode, LockPatternUtils lockPatternUtils,
KeyguardSecurityCallback keyguardSecurityCallback,
KeyguardMessageAreaController.Factory messageAreaControllerFactory,
LatencyTracker latencyTracker, LiftToActivateListener liftToActivateListener,
TelephonyManager telephonyManager, FalsingCollector falsingCollector,
EmergencyButtonController emergencyButtonController) {
super(view, keyguardUpdateMonitor, securityMode, lockPatternUtils, keyguardSecurityCallback,
messageAreaControllerFactory, latencyTracker, liftToActivateListener,
emergencyButtonController, falsingCollector);
mKeyguardUpdateMonitor = keyguardUpdateMonitor;
mTelephonyManager = telephonyManager;
mSimImageView = mView.findViewById(R.id.keyguard_sim);
}
@Override
protected void onViewAttached() {
super.onViewAttached();
}
@Override
void resetState() {
super.resetState();
if (DEBUG) Log.v(TAG, "Resetting state");
handleSubInfoChangeIfNeeded();
mMessageAreaController.setMessage("");
if (mShowDefaultMessage) {
showDefaultMessage();
}
mView.setEsimLocked(KeyguardEsimArea.isEsimLocked(mView.getContext(), mSubId), mSubId);
}
@Override
public boolean startDisappearAnimation(Runnable finishRunnable) {
return false;
}
@Override
public void onResume(int reason) {
super.onResume(reason);
mKeyguardUpdateMonitor.registerCallback(mUpdateMonitorCallback);
mView.resetState();
}
@Override
public void onPause() {
super.onPause();
mKeyguardUpdateMonitor.removeCallback(mUpdateMonitorCallback);
// dismiss the dialog.
if (mSimUnlockProgressDialog != null) {
mSimUnlockProgressDialog.dismiss();
mSimUnlockProgressDialog = null;
}
}
@Override
public void reloadColors() {
super.reloadColors();
mView.reloadColors();
}
@Override
protected void verifyPasswordAndUnlock() {
String entry = mPasswordEntry.getText();
if (entry.length() < 4) {
// otherwise, display a message to the user, and don't submit.
mMessageAreaController.setMessage(
com.android.systemui.R.string.kg_invalid_sim_pin_hint);
mView.resetPasswordText(true /* animate */, true /* announce */);
getKeyguardSecurityCallback().userActivity();
return;
}
getSimUnlockProgressDialog().show();
if (mCheckSimPinThread == null) {
mCheckSimPinThread = new CheckSimPin(mPasswordEntry.getText(), mSubId) {
@Override
void onSimCheckResponse(final PinResult result) {
mView.post(() -> {
mRemainingAttempts = result.getAttemptsRemaining();
if (mSimUnlockProgressDialog != null) {
mSimUnlockProgressDialog.hide();
}
mView.resetPasswordText(true /* animate */,
/* announce */
result.getResult() != PinResult.PIN_RESULT_TYPE_SUCCESS);
if (result.getResult() == PinResult.PIN_RESULT_TYPE_SUCCESS) {
mKeyguardUpdateMonitor.reportSimUnlocked(mSubId);
mRemainingAttempts = -1;
mShowDefaultMessage = true;
getKeyguardSecurityCallback().dismiss(
true, KeyguardUpdateMonitor.getCurrentUser(),
SecurityMode.SimPin);
} else {
mShowDefaultMessage = false;
if (result.getResult() == PinResult.PIN_RESULT_TYPE_INCORRECT) {
if (result.getAttemptsRemaining() <= 2) {
// this is getting critical - show dialog
getSimRemainingAttemptsDialog(
result.getAttemptsRemaining()).show();
} else {
// show message
mMessageAreaController.setMessage(
getPinPasswordErrorMessage(
result.getAttemptsRemaining(), false));
}
} else {
// "PIN operation failed!" - no idea what this was and no way to
// find out. :/
mMessageAreaController.setMessage(mView.getResources().getString(
R.string.kg_password_pin_failed));
}
if (DEBUG) {
Log.d(LOG_TAG, "verifyPasswordAndUnlock "
+ " CheckSimPin.onSimCheckResponse: " + result
+ " attemptsRemaining=" + result.getAttemptsRemaining());
}
}
getKeyguardSecurityCallback().userActivity();
mCheckSimPinThread = null;
});
}
};
mCheckSimPinThread.start();
}
}
private Dialog getSimUnlockProgressDialog() {
if (mSimUnlockProgressDialog == null) {
mSimUnlockProgressDialog = new ProgressDialog(mView.getContext());
mSimUnlockProgressDialog.setMessage(
mView.getResources().getString(R.string.kg_sim_unlock_progress_dialog_message));
mSimUnlockProgressDialog.setIndeterminate(true);
mSimUnlockProgressDialog.setCancelable(false);
mSimUnlockProgressDialog.getWindow().setType(
WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
}
return mSimUnlockProgressDialog;
}
private Dialog getSimRemainingAttemptsDialog(int remaining) {
String msg = getPinPasswordErrorMessage(remaining, false);
if (mRemainingAttemptsDialog == null) {
Builder builder = new AlertDialog.Builder(mView.getContext());
builder.setMessage(msg);
builder.setCancelable(false);
builder.setNeutralButton(R.string.ok, null);
mRemainingAttemptsDialog = builder.create();
mRemainingAttemptsDialog.getWindow().setType(
WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
} else {
mRemainingAttemptsDialog.setMessage(msg);
}
return mRemainingAttemptsDialog;
}
private String getPinPasswordErrorMessage(int attemptsRemaining, boolean isDefault) {
String displayMessage;
int msgId;
if (attemptsRemaining == 0) {
displayMessage = mView.getResources().getString(
R.string.kg_password_wrong_pin_code_pukked);
} else if (attemptsRemaining > 0) {
msgId = isDefault ? R.plurals.kg_password_default_pin_message :
R.plurals.kg_password_wrong_pin_code;
displayMessage = mView.getResources()
.getQuantityString(msgId, attemptsRemaining, attemptsRemaining);
} else {
msgId = isDefault ? R.string.kg_sim_pin_instructions : R.string.kg_password_pin_failed;
displayMessage = mView.getResources().getString(msgId);
}
if (KeyguardEsimArea.isEsimLocked(mView.getContext(), mSubId)) {
displayMessage = mView.getResources()
.getString(R.string.kg_sim_lock_esim_instructions, displayMessage);
}
if (DEBUG) {
Log.d(LOG_TAG, "getPinPasswordErrorMessage: attemptsRemaining="
+ attemptsRemaining + " displayMessage=" + displayMessage);
}
return displayMessage;
}
private void showDefaultMessage() {
setLockedSimMessage();
if (mRemainingAttempts >= 0) {
return;
}
// Sending empty PIN here to query the number of remaining PIN attempts
new CheckSimPin("", mSubId) {
void onSimCheckResponse(final PinResult result) {
Log.d(LOG_TAG, "onSimCheckResponse " + " empty One result "
+ result.toString());
if (result.getAttemptsRemaining() >= 0) {
mRemainingAttempts = result.getAttemptsRemaining();
setLockedSimMessage();
}
}
}.start();
}
/**
* Since the IPC can block, we want to run the request in a separate thread
* with a callback.
*/
private abstract class CheckSimPin extends Thread {
private final String mPin;
private int mSubId;
protected CheckSimPin(String pin, int subId) {
mPin = pin;
mSubId = subId;
}
abstract void onSimCheckResponse(@NonNull PinResult result);
@Override
public void run() {
if (DEBUG) {
Log.v(TAG, "call supplyIccLockPin(subid=" + mSubId + ")");
}
TelephonyManager telephonyManager = mTelephonyManager.createForSubscriptionId(mSubId);
final PinResult result = telephonyManager.supplyIccLockPin(mPin);
if (DEBUG) {
Log.v(TAG, "supplyIccLockPin returned: " + result.toString());
}
mView.post(() -> onSimCheckResponse(result));
}
}
private void setLockedSimMessage() {
boolean isEsimLocked = KeyguardEsimArea.isEsimLocked(mView.getContext(), mSubId);
int count = 1;
if (mTelephonyManager != null) {
count = mTelephonyManager.getActiveModemCount();
}
Resources rez = mView.getResources();
String msg;
TypedArray array = mView.getContext().obtainStyledAttributes(
new int[] { android.R.attr.textColor });
int color = array.getColor(0, Color.WHITE);
array.recycle();
if (count < 2) {
msg = rez.getString(R.string.kg_sim_pin_instructions);
} else {
SubscriptionInfo info = mKeyguardUpdateMonitor.getSubscriptionInfoForSubId(mSubId);
CharSequence displayName = info != null ? info.getDisplayName() : ""; // don't crash
msg = rez.getString(R.string.kg_sim_pin_instructions_multi, displayName);
if (info != null) {
color = info.getIconTint();
}
}
if (isEsimLocked) {
msg = rez.getString(R.string.kg_sim_lock_esim_instructions, msg);
}
if (mView.getVisibility() == View.VISIBLE) {
mMessageAreaController.setMessage(msg);
}
mSimImageView.setImageTintList(ColorStateList.valueOf(color));
}
private void handleSubInfoChangeIfNeeded() {
int subId = mKeyguardUpdateMonitor
.getNextSubIdForState(TelephonyManager.SIM_STATE_PIN_REQUIRED);
if (subId != mSubId && SubscriptionManager.isValidSubscriptionId(subId)) {
mSubId = subId;
mShowDefaultMessage = true;
mRemainingAttempts = -1;
}
}
}