/*
* Copyright (C) 2012 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.content.Context;
import android.content.res.ColorStateList;
import android.content.res.Resources;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.graphics.Color;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.telephony.SubscriptionInfo;
import android.telephony.SubscriptionManager;
import android.telephony.TelephonyManager;
import android.util.AttributeSet;
import android.util.Log;
import android.view.WindowManager;
import android.widget.ImageView;
import com.android.internal.telephony.ITelephony;
import com.android.internal.telephony.IccCardConstants;
import com.android.internal.telephony.PhoneConstants;
import com.android.internal.telephony.IccCardConstants.State;
/**
* Displays a PIN pad for entering a PUK (Pin Unlock Kode) provided by a carrier.
*/
public class KeyguardSimPukView extends KeyguardPinBasedInputView {
private static final String LOG_TAG = "KeyguardSimPukView";
private static final boolean DEBUG = KeyguardConstants.DEBUG;
public static final String TAG = "KeyguardSimPukView";
private ProgressDialog mSimUnlockProgressDialog = null;
private CheckSimPuk mCheckSimPukThread;
private String mPukText;
private String mPinText;
private StateMachine mStateMachine = new StateMachine();
private AlertDialog mRemainingAttemptsDialog;
private int mSubId;
private ImageView mSimImageView;
KeyguardUpdateMonitorCallback mUpdateMonitorCallback = new KeyguardUpdateMonitorCallback() {
@Override
public void onSimStateChanged(int subId, int slotId, State simState) {
if (DEBUG) Log.v(TAG, "onSimStateChanged(subId=" + subId + ",state=" + simState + ")");
resetState();
};
};
public KeyguardSimPukView(Context context) {
this(context, null);
}
public KeyguardSimPukView(Context context, AttributeSet attrs) {
super(context, attrs);
}
private class StateMachine {
final int ENTER_PUK = 0;
final int ENTER_PIN = 1;
final int CONFIRM_PIN = 2;
final int DONE = 3;
private int state = ENTER_PUK;
public void next() {
int msg = 0;
if (state == ENTER_PUK) {
if (checkPuk()) {
state = ENTER_PIN;
msg = R.string.kg_puk_enter_pin_hint;
} else {
msg = R.string.kg_invalid_sim_puk_hint;
}
} else if (state == ENTER_PIN) {
if (checkPin()) {
state = CONFIRM_PIN;
msg = R.string.kg_enter_confirm_pin_hint;
} else {
msg = R.string.kg_invalid_sim_pin_hint;
}
} else if (state == CONFIRM_PIN) {
if (confirmPin()) {
state = DONE;
msg = R.string.keyguard_sim_unlock_progress_dialog_message;
updateSim();
} else {
state = ENTER_PIN; // try again?
msg = R.string.kg_invalid_confirm_pin_hint;
}
}
resetPasswordText(true);
if (msg != 0) {
mSecurityMessageDisplay.setMessage(msg, true);
}
}
void reset() {
mPinText="";
mPukText="";
state = ENTER_PUK;
KeyguardUpdateMonitor monitor = KeyguardUpdateMonitor.getInstance(mContext);
mSubId = monitor.getNextSubIdForState(IccCardConstants.State.PUK_REQUIRED);
if (SubscriptionManager.isValidSubscriptionId(mSubId)) {
int count = TelephonyManager.getDefault().getSimCount();
Resources rez = getResources();
final String msg;
int color = Color.WHITE;
if (count < 2) {
msg = rez.getString(R.string.kg_puk_enter_puk_hint);
} else {
SubscriptionInfo info = monitor.getSubscriptionInfoForSubId(mSubId);
CharSequence displayName = info != null ? info.getDisplayName() : "";
msg = rez.getString(R.string.kg_puk_enter_puk_hint_multi, displayName);
if (info != null) {
color = info.getIconTint();
}
}
mSecurityMessageDisplay.setMessage(msg, true);
mSimImageView.setImageTintList(ColorStateList.valueOf(color));
}
mPasswordEntry.requestFocus();
}
}
private String getPukPasswordErrorMessage(int attemptsRemaining) {
String displayMessage;
if (attemptsRemaining == 0) {
displayMessage = getContext().getString(R.string.kg_password_wrong_puk_code_dead);
} else if (attemptsRemaining > 0) {
displayMessage = getContext().getResources()
.getQuantityString(R.plurals.kg_password_wrong_puk_code, attemptsRemaining,
attemptsRemaining);
} else {
displayMessage = getContext().getString(R.string.kg_password_puk_failed);
}
if (DEBUG) Log.d(LOG_TAG, "getPukPasswordErrorMessage:"
+ " attemptsRemaining=" + attemptsRemaining + " displayMessage=" + displayMessage);
return displayMessage;
}
public void resetState() {
super.resetState();
mStateMachine.reset();
}
@Override
protected boolean shouldLockout(long deadline) {
// SIM PUK doesn't have a timed lockout
return false;
}
@Override
protected int getPasswordTextViewId() {
return R.id.pukEntry;
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
mSecurityMessageDisplay.setTimeout(0); // don't show ownerinfo/charging status by default
if (mEcaView instanceof EmergencyCarrierArea) {
((EmergencyCarrierArea) mEcaView).setCarrierTextVisible(true);
}
mSimImageView = (ImageView) findViewById(R.id.keyguard_sim);
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
KeyguardUpdateMonitor.getInstance(mContext).registerCallback(mUpdateMonitorCallback);
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
KeyguardUpdateMonitor.getInstance(mContext).removeCallback(mUpdateMonitorCallback);
}
@Override
public void showUsabilityHint() {
}
@Override
public void onPause() {
// dismiss the dialog.
if (mSimUnlockProgressDialog != null) {
mSimUnlockProgressDialog.dismiss();
mSimUnlockProgressDialog = null;
}
}
/**
* Since the IPC can block, we want to run the request in a separate thread
* with a callback.
*/
private abstract class CheckSimPuk extends Thread {
private final String mPin, mPuk;
private final int mSubId;
protected CheckSimPuk(String puk, String pin, int subId) {
mPuk = puk;
mPin = pin;
mSubId = subId;
}
abstract void onSimLockChangedResponse(final int result, final int attemptsRemaining);
@Override
public void run() {
try {
if (DEBUG) Log.v(TAG, "call supplyPukReportResult()");
final int[] result = ITelephony.Stub.asInterface(ServiceManager
.checkService("phone")).supplyPukReportResultForSubscriber(mSubId, mPuk, mPin);
if (DEBUG) {
Log.v(TAG, "supplyPukReportResult returned: " + result[0] + " " + result[1]);
}
post(new Runnable() {
public void run() {
onSimLockChangedResponse(result[0], result[1]);
}
});
} catch (RemoteException e) {
Log.e(TAG, "RemoteException for supplyPukReportResult:", e);
post(new Runnable() {
public void run() {
onSimLockChangedResponse(PhoneConstants.PIN_GENERAL_FAILURE, -1);
}
});
}
}
}
private Dialog getSimUnlockProgressDialog() {
if (mSimUnlockProgressDialog == null) {
mSimUnlockProgressDialog = new ProgressDialog(mContext);
mSimUnlockProgressDialog.setMessage(
mContext.getString(R.string.kg_sim_unlock_progress_dialog_message));
mSimUnlockProgressDialog.setIndeterminate(true);
mSimUnlockProgressDialog.setCancelable(false);
if (!(mContext instanceof Activity)) {
mSimUnlockProgressDialog.getWindow().setType(
WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
}
}
return mSimUnlockProgressDialog;
}
private Dialog getPukRemainingAttemptsDialog(int remaining) {
String msg = getPukPasswordErrorMessage(remaining);
if (mRemainingAttemptsDialog == null) {
AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
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 boolean checkPuk() {
// make sure the puk is at least 8 digits long.
if (mPasswordEntry.getText().length() == 8) {
mPukText = mPasswordEntry.getText();
return true;
}
return false;
}
private boolean checkPin() {
// make sure the PIN is between 4 and 8 digits
int length = mPasswordEntry.getText().length();
if (length >= 4 && length <= 8) {
mPinText = mPasswordEntry.getText();
return true;
}
return false;
}
public boolean confirmPin() {
return mPinText.equals(mPasswordEntry.getText());
}
private void updateSim() {
getSimUnlockProgressDialog().show();
if (mCheckSimPukThread == null) {
mCheckSimPukThread = new CheckSimPuk(mPukText, mPinText, mSubId) {
void onSimLockChangedResponse(final int result, final int attemptsRemaining) {
post(new Runnable() {
public void run() {
if (mSimUnlockProgressDialog != null) {
mSimUnlockProgressDialog.hide();
}
resetPasswordText(true /* animate */);
if (result == PhoneConstants.PIN_RESULT_SUCCESS) {
KeyguardUpdateMonitor.getInstance(getContext())
.reportSimUnlocked(mSubId);
mCallback.dismiss(true);
} else {
if (result == PhoneConstants.PIN_PASSWORD_INCORRECT) {
if (attemptsRemaining <= 2) {
// this is getting critical - show dialog
getPukRemainingAttemptsDialog(attemptsRemaining).show();
} else {
// show message
mSecurityMessageDisplay.setMessage(
getPukPasswordErrorMessage(attemptsRemaining), true);
}
} else {
mSecurityMessageDisplay.setMessage(getContext().getString(
R.string.kg_password_puk_failed), true);
}
if (DEBUG) Log.d(LOG_TAG, "verifyPasswordAndUnlock "
+ " UpdateSim.onSimCheckResponse: "
+ " attemptsRemaining=" + attemptsRemaining);
mStateMachine.reset();
}
mCheckSimPukThread = null;
}
});
}
};
mCheckSimPukThread.start();
}
}
@Override
protected void verifyPasswordAndUnlock() {
mStateMachine.next();
}
@Override
public void startAppearAnimation() {
// noop.
}
@Override
public boolean startDisappearAnimation(Runnable finishRunnable) {
return false;
}
}
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