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Fixes for pin-restricted settings.

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- Reprompt for pin after screen has been locked and unlocked.
- For protected preferences, store the Preference and continue if pin entry is successful.
- Protect whole UserSettings and DevelopmentSettings pages.

Bug: 10543207
Change-Id: If1d4b31ca94a8cfc103625b74385bcd0bdd3d88b
This commit is contained in:
Maggie Benthall
2013-08-29 10:49:13 -04:00
parent 02f3f2028f
commit 4453496448
3 changed files with 76 additions and 28 deletions
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13
src/com/android/settings/DevelopmentSettings.java
View File

@@ -74,7 +74,6 @@ import java.io.File;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
/*
* Displays preferences for application developers.
@@ -224,7 +223,7 @@ public class DevelopmentSettings extends RestrictedSettingsFragment
private boolean mUnavailable;
public DevelopmentSettings() {
super(null /* Don't ask for restrictions pin on creation. */);
super(RESTRICTIONS_PIN_SET);
}
@Override
@@ -276,13 +275,6 @@ public class DevelopmentSettings extends RestrictedSettingsFragment
disableForUser(mPassword);
}
if (shouldBePinProtected(RESTRICTIONS_PIN_SET)) {
protectByRestrictions(mEnableAdb);
protectByRestrictions(mClearAdbKeys);
protectByRestrictions(mEnableTerminal);
protectByRestrictions(mPassword);
}
mDebugAppPref = findPreference(DEBUG_APP_KEY);
mAllPrefs.add(mDebugAppPref);
mWaitForDebugger = findAndInitCheckboxPref(WAIT_FOR_DEBUGGER_KEY);
@@ -1212,9 +1204,6 @@ public class DevelopmentSettings extends RestrictedSettingsFragment
@Override
public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
if (super.onPreferenceTreeClick(preferenceScreen, preference)) {
return true;
}
if (Utils.isMonkeyRunning()) {
return false;
}

82
src/com/android/settings/RestrictedSettingsFragment.java
View File

@@ -19,12 +19,14 @@ package com.android.settings;
import java.util.HashSet;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.os.UserManager;
import android.preference.CheckBoxPreference;
import android.preference.Preference;
import android.preference.PreferenceScreen;
/**
* Base class for settings activities that should be pin protected when in restricted mode.
@@ -38,17 +40,22 @@ import android.preference.PreferenceScreen;
* {@link RESTRICTIONS_PIN_SET} to the constructor instead of a restrictions key.
*/
public class RestrictedSettingsFragment extends SettingsPreferenceFragment {
protected static final String RESTRICTIONS_PIN_SET = "restrictions_pin_set";
private static final String EXTRA_PREFERENCE = "pref";
private static final String EXTRA_CHECKBOX_STATE = "isChecked";
// Should be unique across all settings screens that use this.
private static final int REQUEST_PIN_CHALLENGE = 12309;
private static final String KEY_CHALLENGE_SUCCEEDED = "chsc";
private static final String KEY_CHALLENGE_REQUESTED = "chrq";
private static final String KEY_RESUME_ACTION_BUNDLE = "rsmb";
// If the restriction PIN is entered correctly.
private boolean mChallengeSucceeded;
private boolean mChallengeRequested;
private Bundle mResumeActionBundle;
private UserManager mUserManager;
@@ -56,6 +63,17 @@ public class RestrictedSettingsFragment extends SettingsPreferenceFragment {
private final HashSet<Preference> mProtectedByRestictionsPrefs = new HashSet<Preference>();
// Receiver to clear pin status when the screen is turned off.
private BroadcastReceiver mScreenOffReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
mChallengeSucceeded = false;
if (shouldBePinProtected(mRestrictionKey)) {
ensurePin(null);
}
}
};
/**
* @param restrictionKey The restriction key to check before pin protecting
* this settings page. Pass in {@link RESTRICTIONS_PIN_SET} if it should
@@ -75,6 +93,7 @@ public class RestrictedSettingsFragment extends SettingsPreferenceFragment {
if (icicle != null) {
mChallengeSucceeded = icicle.getBoolean(KEY_CHALLENGE_SUCCEEDED, false);
mChallengeRequested = icicle.getBoolean(KEY_CHALLENGE_REQUESTED, false);
mResumeActionBundle = icicle.getBundle(KEY_RESUME_ACTION_BUNDLE);
}
}
@@ -83,6 +102,9 @@ public class RestrictedSettingsFragment extends SettingsPreferenceFragment {
super.onSaveInstanceState(outState);
outState.putBoolean(KEY_CHALLENGE_REQUESTED, mChallengeRequested);
if (mResumeActionBundle != null) {
outState.putBundle(KEY_RESUME_ACTION_BUNDLE, mResumeActionBundle);
}
if (getActivity().isChangingConfigurations()) {
outState.putBoolean(KEY_CHALLENGE_SUCCEEDED, mChallengeSucceeded);
}
@@ -92,17 +114,52 @@ public class RestrictedSettingsFragment extends SettingsPreferenceFragment {
public void onResume() {
super.onResume();
if (shouldBePinProtected(mRestrictionKey)) {
ensurePin();
ensurePin(null);
} else {
// If the whole screen is not pin protected, reset mChallengeSucceeded so next
// time user uses a protected preference, they are prompted for pin again.
mChallengeSucceeded = false;
}
IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_OFF);
filter.addAction(Intent.ACTION_USER_PRESENT);
getActivity().registerReceiver(mScreenOffReceiver, filter);
}
@Override
public void onPause() {
super.onPause();
getActivity().unregisterReceiver(mScreenOffReceiver);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST_PIN_CHALLENGE) {
Bundle resumeActionBundle = mResumeActionBundle;
mResumeActionBundle = null;
mChallengeRequested = false;
if (resultCode == Activity.RESULT_OK) {
mChallengeSucceeded = true;
String prefKey = resumeActionBundle == null ?
null : resumeActionBundle.getString(EXTRA_PREFERENCE);
if (prefKey != null) {
Preference pref = findPreference(prefKey);
if (pref != null) {
// Make sure the checkbox state is the same as it was when we launched the
// pin challenge.
if (pref instanceof CheckBoxPreference
&& resumeActionBundle.containsKey(EXTRA_CHECKBOX_STATE)) {
boolean isChecked =
resumeActionBundle.getBoolean(EXTRA_CHECKBOX_STATE, false);
((CheckBoxPreference)pref).setChecked(isChecked);
}
if (!onPreferenceTreeClick(getPreferenceScreen(), pref)) {
Intent prefIntent = pref.getIntent();
if (prefIntent != null) {
pref.getContext().startActivity(prefIntent);
}
}
}
}
} else if (!isDetached()) {
finishFragment();
}
@@ -112,13 +169,20 @@ public class RestrictedSettingsFragment extends SettingsPreferenceFragment {
super.onActivityResult(requestCode, resultCode, data);
}
private void ensurePin() {
private void ensurePin(Preference preference) {
if (!mChallengeSucceeded) {
final UserManager um = UserManager.get(getActivity());
if (!mChallengeRequested) {
if (um.hasRestrictionsPin()) {
Intent requestPin =
new Intent(Intent.ACTION_RESTRICTIONS_PIN_CHALLENGE);
mResumeActionBundle = new Bundle();
if (preference != null) {
mResumeActionBundle.putString(EXTRA_PREFERENCE, preference.getKey());
if (preference instanceof CheckBoxPreference) {
mResumeActionBundle.putBoolean(EXTRA_CHECKBOX_STATE,
((CheckBoxPreference)preference).isChecked());
}
}
Intent requestPin = new Intent(Intent.ACTION_RESTRICTIONS_PIN_CHALLENGE);
startActivityForResult(requestPin, REQUEST_PIN_CHALLENGE);
mChallengeRequested = true;
}
@@ -144,9 +208,9 @@ public class RestrictedSettingsFragment extends SettingsPreferenceFragment {
* @param restrictionsKey The restriction key or {@link RESTRICTIONS_PIN_SET} if
* pin entry should get triggered if there is a pin set.
*/
protected boolean restrictionsPinCheck(String restrictionsKey) {
protected boolean restrictionsPinCheck(String restrictionsKey, Preference preference) {
if (shouldBePinProtected(restrictionsKey) && !mChallengeSucceeded) {
ensurePin();
ensurePin(preference);
return false;
} else {
return true;
@@ -177,7 +241,7 @@ public class RestrictedSettingsFragment extends SettingsPreferenceFragment {
*/
boolean ensurePinRestrictedPreference(Preference preference) {
return mProtectedByRestictionsPrefs.contains(preference)
&& !restrictionsPinCheck(RESTRICTIONS_PIN_SET);
&& !restrictionsPinCheck(RESTRICTIONS_PIN_SET, preference);
}
/**

7
src/com/android/settings/users/UserSettings.java
View File

@@ -135,7 +135,7 @@ public class UserSettings extends RestrictedSettingsFragment
private boolean mIsOwner = UserHandle.myUserId() == UserHandle.USER_OWNER;
public UserSettings() {
super(null);
super(RestrictedSettingsFragment.RESTRICTIONS_PIN_SET);
}
private Handler mHandler = new Handler() {
@@ -718,9 +718,6 @@ public class UserSettings extends RestrictedSettingsFragment
@Override
public boolean onPreferenceClick(Preference pref) {
if (pref == mAddUser && !restrictionsPinCheck(RESTRICTIONS_PIN_SET)) {
return false;
}
if (pref == mMePreference) {
Intent editProfile;
if (!mProfileExists) {
@@ -780,9 +777,7 @@ public class UserSettings extends RestrictedSettingsFragment
int userId = ((UserPreference) v.getTag()).getUserId();
switch (v.getId()) {
case UserPreference.DELETE_ID:
if (restrictionsPinCheck(RESTRICTIONS_PIN_SET)) {
onRemoveUserClicked(userId);
}
break;
case UserPreference.SETTINGS_ID:
onManageUserClicked(userId, false);