PawletOS/app_Settings
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Migrate settings UI to use async security check

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Bug: 20697812
Change-Id: Ieb0090ddb61198a60abb1e34ff9c6e8476c33789
This commit is contained in:
Xiyuan Xia
2015-05-05 16:04:00 -07:00
parent ec36780b6a
commit bf9ac6b4fb
4 changed files with 255 additions and 59 deletions
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109
src/com/android/settings/ConfirmLockPattern.java
View File

@@ -20,6 +20,7 @@ import com.android.internal.logging.MetricsLogger;
import com.android.internal.widget.LockPatternUtils;
import com.android.internal.widget.LockPatternView;
import com.android.internal.widget.LinearLayoutWithDefaultTouchRecepient;
import com.android.internal.widget.LockPatternChecker;
import com.android.internal.widget.LockPatternView.Cell;
import android.annotation.Nullable;
@@ -27,6 +28,7 @@ import android.app.Activity;
import android.content.Intent;
import android.os.CountDownTimer;
import android.os.SystemClock;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.UserHandle;
import android.os.storage.StorageManager;
@@ -77,6 +79,7 @@ public class ConfirmLockPattern extends ConfirmDeviceCredentialBaseActivity {
private LockPatternView mLockPatternView;
private LockPatternUtils mLockPatternUtils;
private AsyncTask<?, ?, ?> mPendingLockCheck;
private int mNumWrongConfirmAttempts;
private CountDownTimer mCountdownTimer;
@@ -157,6 +160,10 @@ public class ConfirmLockPattern extends ConfirmDeviceCredentialBaseActivity {
if (mCountdownTimer != null) {
mCountdownTimer.cancel();
}
if (mPendingLockCheck != null) {
mPendingLockCheck.cancel(false);
mPendingLockCheck = null;
}
}
@Override
@@ -173,8 +180,8 @@ public class ConfirmLockPattern extends ConfirmDeviceCredentialBaseActivity {
if (deadline != 0) {
handleAttemptLockout(deadline);
} else if (!mLockPatternView.isEnabled()) {
// The deadline has passed, but the timer was cancelled...
// Need to clean up.
// The deadline has passed, but the timer was cancelled. Or the pending lock
// check was cancelled. Need to clean up.
mNumWrongConfirmAttempts = 0;
updateStage(Stage.NeedToUnlock);
}
@@ -198,6 +205,7 @@ public class ConfirmLockPattern extends ConfirmDeviceCredentialBaseActivity {
mLockPatternView.setEnabled(true);
mLockPatternView.enableInput();
mLockPatternView.clearPattern();
break;
case NeedToUnlockWrong:
mErrorTextView.setText(R.string.lockpattern_need_to_unlock_wrong);
@@ -269,32 +277,81 @@ public class ConfirmLockPattern extends ConfirmDeviceCredentialBaseActivity {
}
public void onPatternDetected(List<LockPatternView.Cell> pattern) {
final boolean verifyChallenge = getActivity().getIntent().getBooleanExtra(
ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, false);
boolean matched = false;
Intent intent = new Intent();
if (verifyChallenge) {
if (getActivity() instanceof ConfirmLockPattern.InternalActivity) {
long challenge = getActivity().getIntent().getLongExtra(
ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE, 0);
byte[] token = mLockPatternUtils.verifyPattern(pattern, challenge,
UserHandle.myUserId());
if (token != null) {
matched = true;
intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN, token);
}
}
} else if (mLockPatternUtils.checkPattern(pattern, UserHandle.myUserId())) {
matched = true;
if (getActivity() instanceof ConfirmLockPattern.InternalActivity) {
intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_TYPE,
StorageManager.CRYPT_TYPE_PATTERN);
intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD,
LockPatternUtils.patternToString(pattern));
}
mLockPatternView.setEnabled(false);
if (mPendingLockCheck != null) {
mPendingLockCheck.cancel(false);
}
final boolean verifyChallenge = getActivity().getIntent().getBooleanExtra(
ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, false);
Intent intent = new Intent();
if (verifyChallenge) {
if (isInternalActivity()) {
startVerifyPattern(pattern, intent);
return;
}
} else {
startCheckPattern(pattern, intent);
return;
}
onPatternChecked(pattern, false, intent);
}
private boolean isInternalActivity() {
return getActivity() instanceof ConfirmLockPattern.InternalActivity;
}
private void startVerifyPattern(final List<LockPatternView.Cell> pattern,
final Intent intent) {
long challenge = getActivity().getIntent().getLongExtra(
ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE, 0);
mPendingLockCheck = LockPatternChecker.verifyPattern(
mLockPatternUtils,
pattern,
challenge,
UserHandle.myUserId(),
new LockPatternChecker.OnVerifyCallback() {
@Override
public void onVerified(byte[] token) {
mPendingLockCheck = null;
boolean matched = false;
if (token != null) {
matched = true;
intent.putExtra(
ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN,
token);
}
onPatternChecked(pattern, matched, intent);
}
});
}
private void startCheckPattern(final List<LockPatternView.Cell> pattern,
final Intent intent) {
mPendingLockCheck = LockPatternChecker.checkPattern(
mLockPatternUtils,
pattern,
UserHandle.myUserId(),
new LockPatternChecker.OnCheckCallback() {
@Override
public void onChecked(boolean matched) {
mPendingLockCheck = null;
if (matched && isInternalActivity()) {
intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_TYPE,
StorageManager.CRYPT_TYPE_PATTERN);
intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD,
LockPatternUtils.patternToString(pattern));
}
onPatternChecked(pattern, matched, intent);
}
});
}
private void onPatternChecked(List<LockPatternView.Cell> pattern,
boolean matched,
Intent intent) {
mLockPatternView.setEnabled(true);
if (matched) {
getActivity().setResult(Activity.RESULT_OK, intent);
getActivity().finish();