src/com/android/settings/privatespace/PrivateSpaceMaintainer.java - LeafOS-Project/android_packages_apps_Settings - Gitiles

 /*
  * Copyright (C) 2023 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.privatespace;

 import static android.os.UserManager.USER_TYPE_PROFILE_PRIVATE;
 import static android.provider.Settings.Secure.HIDE_PRIVATESPACE_ENTRY_POINT;
 import static android.provider.Settings.Secure.USER_SETUP_COMPLETE;

 import android.app.ActivityManager;
 import android.app.IActivityManager;
 import android.app.KeyguardManager;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.UserInfo;
 import android.os.Flags;
 import android.os.RemoteException;
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.provider.Settings;
 import android.util.ArraySet;
 import android.util.Log;

 import androidx.annotation.Nullable;
 import androidx.annotation.VisibleForTesting;

 import com.android.internal.annotations.GuardedBy;

 import java.util.List;

 // TODO(b/293569406): Update the javadoc when we have the setup flow in place to create PS
 /** A class to help with the creation / deletion of Private Space */
 public class PrivateSpaceMaintainer {
     private static final String TAG = "PrivateSpaceMaintainer";

     @GuardedBy("this")
     private static PrivateSpaceMaintainer sPrivateSpaceMaintainer;

     private final Context mContext;
     private final UserManager mUserManager;
     @GuardedBy("this")
     private UserHandle mUserHandle;
     private final KeyguardManager mKeyguardManager;

     /** This is the default value for the hide private space entry point settings. */
     public static final int HIDE_PRIVATE_SPACE_ENTRY_POINT_DISABLED_VAL = 0;
     public static final int HIDE_PRIVATE_SPACE_ENTRY_POINT_ENABLED_VAL = 1;

     public enum ErrorDeletingPrivateSpace {
             DELETE_PS_ERROR_NONE,
             DELETE_PS_ERROR_NO_PRIVATE_SPACE,
             DELETE_PS_ERROR_INTERNAL
     }

     /**
      * Returns true if the private space was successfully created.
      *
      * <p> This method should be used by the Private Space Setup Flow ONLY.
      */
     final synchronized boolean createPrivateSpace() {
         if (!Flags.allowPrivateProfile()) {
             return false;
         }
         // Check if Private space already exists
         if (doesPrivateSpaceExist()) {
             return true;
         }
         // a name indicating that the profile was created from the PS Settings page
         final String userName = "psSettingsUser";

         if (mUserHandle == null) {
             try {
                 mUserHandle = mUserManager.createProfile(
                                 userName, USER_TYPE_PROFILE_PRIVATE, new ArraySet<>());
             } catch (Exception e) {
                 Log.e(TAG, "Error creating private space", e);
                 return false;
             }

             if (mUserHandle == null) {
                 Log.e(TAG, "Failed to create private space");
                 return false;
             }

             IActivityManager am = ActivityManager.getService();
             try {
                 //TODO(b/313926659): To check and handle failure of startProfile
                 am.startProfile(mUserHandle.getIdentifier());
             } catch (RemoteException e) {
                 Log.e(TAG, "Failed to start private profile");
                 return false;
             }

             Log.i(TAG, "Private space created with id: " + mUserHandle.getIdentifier());
             resetPrivateSpaceSettings();
             setUserSetupComplete();
         }
         return true;
     }

     /** Returns the {@link ErrorDeletingPrivateSpace} enum representing the result of operation.
      *
      * <p> This method should be used ONLY by the delete-PS controller in the PS Settings page.
      */
     public synchronized ErrorDeletingPrivateSpace deletePrivateSpace() {
         if (!doesPrivateSpaceExist()) {
             return ErrorDeletingPrivateSpace.DELETE_PS_ERROR_NO_PRIVATE_SPACE;
         }

         try {
             Log.i(TAG, "Deleting Private space with id: " + mUserHandle.getIdentifier());
             if (mUserManager.removeUser(mUserHandle)) {
                 Log.i(TAG, "Private space deleted");
                 mUserHandle = null;

                 return ErrorDeletingPrivateSpace.DELETE_PS_ERROR_NONE;
             } else {
                 Log.e(TAG, "Failed to delete private space");
             }
         } catch (Exception e) {
             Log.e(TAG, "Error deleting private space", e);
         }
         return ErrorDeletingPrivateSpace.DELETE_PS_ERROR_INTERNAL;
     }

     /** Returns true if the Private space exists. */
     public synchronized boolean doesPrivateSpaceExist() {
         if (!Flags.allowPrivateProfile()) {
             return false;
         }
         if (mUserHandle != null) {
             return true;
         }

         List<UserInfo> users = mUserManager.getProfiles(0);
         for (UserInfo user : users) {
             if (user.isPrivateProfile()) {
                 mUserHandle = user.getUserHandle();
                 return true;
             }
         }
         return false;
     }

     /** Returns true when the PS is locked or when PS doesn't exist, false otherwise. */
     public synchronized boolean isPrivateSpaceLocked() {
         if (!doesPrivateSpaceExist()) {
             return true;
         }

         return mUserManager.isQuietModeEnabled(mUserHandle);
     }

     /**
      * Returns an intent to prompt the user to confirm private profile credentials if it is set
      * otherwise returns intent to confirm device credentials.
      */
     @Nullable
     public synchronized Intent getPrivateProfileLockCredentialIntent() {
         //TODO(b/307281644): To replace with check for doesPrivateSpaceExist() method once Auth
         // changes are merged.
         if (isPrivateProfileLockSet()) {
             return mKeyguardManager.createConfirmDeviceCredentialIntent(
                     /* title= */ null,  /* description= */null, mUserHandle.getIdentifier());
         }
         // TODO(b/304796434) Need to try changing this intent to use BiometricPrompt
         return mKeyguardManager.createConfirmDeviceCredentialIntent(
                 /* title= */ null, /* description= */ null);
     }

     /** Returns Private profile user handle if private profile exists otherwise returns null. */
     @Nullable
     public synchronized UserHandle getPrivateProfileHandle() {
         if (doesPrivateSpaceExist()) {
             return mUserHandle;
         }
         return null;
     }

     /** Returns the instance of {@link PrivateSpaceMaintainer} */
     public static synchronized PrivateSpaceMaintainer getInstance(Context context) {
         if (sPrivateSpaceMaintainer == null) {
             sPrivateSpaceMaintainer = new PrivateSpaceMaintainer(context);
         }
         return sPrivateSpaceMaintainer;
     }

     private PrivateSpaceMaintainer(Context context) {
         mContext = context.getApplicationContext();
         mUserManager = mContext.getSystemService(UserManager.class);
         mKeyguardManager = mContext.getSystemService(KeyguardManager.class);
     }


     // TODO(b/307281644): Remove this method once new auth change is merged
     /**
      * Returns true if private space exists and a separate private profile lock is set
      * otherwise false when the private space does not exit or exists but does not have a
      * separate profile lock.
      */
     @GuardedBy("this")
     private boolean isPrivateProfileLockSet() {
         return doesPrivateSpaceExist()
                 && mKeyguardManager.isDeviceSecure(mUserHandle.getIdentifier());
     }

     /** Sets the setting to show PS entry point to the provided value. */
     public void setHidePrivateSpaceEntryPointSetting(int value) {
         Settings.Secure.putInt(mContext.getContentResolver(), HIDE_PRIVATESPACE_ENTRY_POINT, value);
     }

     /** @return the setting to show PS entry point. */
     public int getHidePrivateSpaceEntryPointSetting() {
         return Settings.Secure.getInt(
                 mContext.getContentResolver(),
                 HIDE_PRIVATESPACE_ENTRY_POINT,
                 HIDE_PRIVATE_SPACE_ENTRY_POINT_DISABLED_VAL);
     }

     /**
      * Returns true if private space exists and quiet mode is successfully enabled, otherwise
      * returns false
      */
     public synchronized boolean lockPrivateSpace() {
         if (isPrivateProfileRunning()) {
             return mUserManager.requestQuietModeEnabled(true, mUserHandle);
         }
         return false;
     }

     /** Returns true if private space exists and is running, otherwise returns false */
     @VisibleForTesting
     synchronized boolean isPrivateProfileRunning() {
         if (doesPrivateSpaceExist() && mUserHandle != null) {
             return mUserManager.isUserRunning(mUserHandle);
         }
         return false;
     }

     private void resetPrivateSpaceSettings() {
         setHidePrivateSpaceEntryPointSetting(HIDE_PRIVATE_SPACE_ENTRY_POINT_DISABLED_VAL);
     }

     /**
      * Sets the USER_SETUP_COMPLETE for private profile on which device theme is applied to the
      * profile.
      */
     @GuardedBy("this")
     private void setUserSetupComplete() {
         Settings.Secure.putIntForUser(mContext.getContentResolver(), USER_SETUP_COMPLETE,
                 1, mUserHandle.getIdentifier());
     }
 }
	/*
	* Copyright (C) 2023 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.privatespace;

	import static android.os.UserManager.USER_TYPE_PROFILE_PRIVATE;
	import static android.provider.Settings.Secure.HIDE_PRIVATESPACE_ENTRY_POINT;
	import static android.provider.Settings.Secure.USER_SETUP_COMPLETE;

	import android.app.ActivityManager;
	import android.app.IActivityManager;
	import android.app.KeyguardManager;
	import android.content.Context;
	import android.content.Intent;
	import android.content.pm.UserInfo;
	import android.os.Flags;
	import android.os.RemoteException;
	import android.os.UserHandle;
	import android.os.UserManager;
	import android.provider.Settings;
	import android.util.ArraySet;
	import android.util.Log;

	import androidx.annotation.Nullable;
	import androidx.annotation.VisibleForTesting;

	import com.android.internal.annotations.GuardedBy;

	import java.util.List;

	// TODO(b/293569406): Update the javadoc when we have the setup flow in place to create PS
	/** A class to help with the creation / deletion of Private Space */
	public class PrivateSpaceMaintainer {
	private static final String TAG = "PrivateSpaceMaintainer";

	@GuardedBy("this")
	private static PrivateSpaceMaintainer sPrivateSpaceMaintainer;

	private final Context mContext;
	private final UserManager mUserManager;
	@GuardedBy("this")
	private UserHandle mUserHandle;
	private final KeyguardManager mKeyguardManager;

	/** This is the default value for the hide private space entry point settings. */
	public static final int HIDE_PRIVATE_SPACE_ENTRY_POINT_DISABLED_VAL = 0;
	public static final int HIDE_PRIVATE_SPACE_ENTRY_POINT_ENABLED_VAL = 1;

	public enum ErrorDeletingPrivateSpace {
	DELETE_PS_ERROR_NONE,
	DELETE_PS_ERROR_NO_PRIVATE_SPACE,
	DELETE_PS_ERROR_INTERNAL
	}

	/**
	* Returns true if the private space was successfully created.
	*
	* <p> This method should be used by the Private Space Setup Flow ONLY.
	*/
	final synchronized boolean createPrivateSpace() {
	if (!Flags.allowPrivateProfile()) {
	return false;
	}
	// Check if Private space already exists
	if (doesPrivateSpaceExist()) {
	return true;
	}
	// a name indicating that the profile was created from the PS Settings page
	final String userName = "psSettingsUser";

	if (mUserHandle == null) {
	try {
	mUserHandle = mUserManager.createProfile(
	userName, USER_TYPE_PROFILE_PRIVATE, new ArraySet<>());
	} catch (Exception e) {
	Log.e(TAG, "Error creating private space", e);
	return false;
	}

	if (mUserHandle == null) {
	Log.e(TAG, "Failed to create private space");
	return false;
	}

	IActivityManager am = ActivityManager.getService();
	try {
	//TODO(b/313926659): To check and handle failure of startProfile
	am.startProfile(mUserHandle.getIdentifier());
	} catch (RemoteException e) {
	Log.e(TAG, "Failed to start private profile");
	return false;
	}

	Log.i(TAG, "Private space created with id: " + mUserHandle.getIdentifier());
	resetPrivateSpaceSettings();
	setUserSetupComplete();
	}
	return true;
	}

	/** Returns the {@link ErrorDeletingPrivateSpace} enum representing the result of operation.
	*
	* <p> This method should be used ONLY by the delete-PS controller in the PS Settings page.
	*/
	public synchronized ErrorDeletingPrivateSpace deletePrivateSpace() {
	if (!doesPrivateSpaceExist()) {
	return ErrorDeletingPrivateSpace.DELETE_PS_ERROR_NO_PRIVATE_SPACE;
	}

	try {
	Log.i(TAG, "Deleting Private space with id: " + mUserHandle.getIdentifier());
	if (mUserManager.removeUser(mUserHandle)) {
	Log.i(TAG, "Private space deleted");
	mUserHandle = null;

	return ErrorDeletingPrivateSpace.DELETE_PS_ERROR_NONE;
	} else {
	Log.e(TAG, "Failed to delete private space");
	}
	} catch (Exception e) {
	Log.e(TAG, "Error deleting private space", e);
	}
	return ErrorDeletingPrivateSpace.DELETE_PS_ERROR_INTERNAL;
	}

	/** Returns true if the Private space exists. */
	public synchronized boolean doesPrivateSpaceExist() {
	if (!Flags.allowPrivateProfile()) {
	return false;
	}
	if (mUserHandle != null) {
	return true;
	}

	List<UserInfo> users = mUserManager.getProfiles(0);
	for (UserInfo user : users) {
	if (user.isPrivateProfile()) {
	mUserHandle = user.getUserHandle();
	return true;
	}
	}
	return false;
	}

	/** Returns true when the PS is locked or when PS doesn't exist, false otherwise. */
	public synchronized boolean isPrivateSpaceLocked() {
	if (!doesPrivateSpaceExist()) {
	return true;
	}

	return mUserManager.isQuietModeEnabled(mUserHandle);
	}

	/**
	* Returns an intent to prompt the user to confirm private profile credentials if it is set
	* otherwise returns intent to confirm device credentials.
	*/
	@Nullable
	public synchronized Intent getPrivateProfileLockCredentialIntent() {
	//TODO(b/307281644): To replace with check for doesPrivateSpaceExist() method once Auth
	// changes are merged.
	if (isPrivateProfileLockSet()) {
	return mKeyguardManager.createConfirmDeviceCredentialIntent(
	/* title= / null, / description= */null, mUserHandle.getIdentifier());
	}
	// TODO(b/304796434) Need to try changing this intent to use BiometricPrompt
	return mKeyguardManager.createConfirmDeviceCredentialIntent(
	/* title= / null, / description= */ null);
	}

	/** Returns Private profile user handle if private profile exists otherwise returns null. */
	@Nullable
	public synchronized UserHandle getPrivateProfileHandle() {
	if (doesPrivateSpaceExist()) {
	return mUserHandle;
	}
	return null;
	}

	/** Returns the instance of {@link PrivateSpaceMaintainer} */
	public static synchronized PrivateSpaceMaintainer getInstance(Context context) {
	if (sPrivateSpaceMaintainer == null) {
	sPrivateSpaceMaintainer = new PrivateSpaceMaintainer(context);
	}
	return sPrivateSpaceMaintainer;
	}

	private PrivateSpaceMaintainer(Context context) {
	mContext = context.getApplicationContext();
	mUserManager = mContext.getSystemService(UserManager.class);
	mKeyguardManager = mContext.getSystemService(KeyguardManager.class);
	}


	// TODO(b/307281644): Remove this method once new auth change is merged
	/**
	* Returns true if private space exists and a separate private profile lock is set
	* otherwise false when the private space does not exit or exists but does not have a
	* separate profile lock.
	*/
	@GuardedBy("this")
	private boolean isPrivateProfileLockSet() {
	return doesPrivateSpaceExist()
	&& mKeyguardManager.isDeviceSecure(mUserHandle.getIdentifier());
	}

	/** Sets the setting to show PS entry point to the provided value. */
	public void setHidePrivateSpaceEntryPointSetting(int value) {
	Settings.Secure.putInt(mContext.getContentResolver(), HIDE_PRIVATESPACE_ENTRY_POINT, value);
	}

	/** @return the setting to show PS entry point. */
	public int getHidePrivateSpaceEntryPointSetting() {
	return Settings.Secure.getInt(
	mContext.getContentResolver(),
	HIDE_PRIVATESPACE_ENTRY_POINT,
	HIDE_PRIVATE_SPACE_ENTRY_POINT_DISABLED_VAL);
	}

	/**
	* Returns true if private space exists and quiet mode is successfully enabled, otherwise
	* returns false
	*/
	public synchronized boolean lockPrivateSpace() {
	if (isPrivateProfileRunning()) {
	return mUserManager.requestQuietModeEnabled(true, mUserHandle);
	}
	return false;
	}

	/** Returns true if private space exists and is running, otherwise returns false */
	@VisibleForTesting
	synchronized boolean isPrivateProfileRunning() {
	if (doesPrivateSpaceExist() && mUserHandle != null) {
	return mUserManager.isUserRunning(mUserHandle);
	}
	return false;
	}

	private void resetPrivateSpaceSettings() {
	setHidePrivateSpaceEntryPointSetting(HIDE_PRIVATE_SPACE_ENTRY_POINT_DISABLED_VAL);
	}

	/**
	* Sets the USER_SETUP_COMPLETE for private profile on which device theme is applied to the
	* profile.
	*/
	@GuardedBy("this")
	private void setUserSetupComplete() {
	Settings.Secure.putIntForUser(mContext.getContentResolver(), USER_SETUP_COMPLETE,
	1, mUserHandle.getIdentifier());
	}
	}