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/*
* Copyright (C) 2016 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.internal.app;
import static android.view.WindowManager.LayoutParams.SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS;
import android.accounts.Account;
import android.accounts.AccountManager;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.UserInfo;
import android.os.Bundle;
import android.os.PersistableBundle;
import android.os.UserManager;
import android.util.Log;
import com.android.internal.R;
/**
* Activity to confirm with the user that it is ok to create a new user, as requested by
* an app. It has to do some checks to decide what kind of prompt the user should be shown.
* Particularly, it needs to check if the account requested already exists on another user.
*/
public class ConfirmUserCreationActivity extends AlertActivity
implements DialogInterface.OnClickListener {
private static final String TAG = "CreateUser";
private static final String USER_TYPE = UserManager.USER_TYPE_FULL_SECONDARY;
private String mUserName;
private String mAccountName;
private String mAccountType;
private PersistableBundle mAccountOptions;
private boolean mCanProceed;
private UserManager mUserManager;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
getWindow().addSystemFlags(SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);
Intent intent = getIntent();
mUserName = intent.getStringExtra(UserManager.EXTRA_USER_NAME);
mAccountName = intent.getStringExtra(UserManager.EXTRA_USER_ACCOUNT_NAME);
mAccountType = intent.getStringExtra(UserManager.EXTRA_USER_ACCOUNT_TYPE);
mAccountOptions = (PersistableBundle)
intent.getParcelableExtra(UserManager.EXTRA_USER_ACCOUNT_OPTIONS);
mUserManager = getSystemService(UserManager.class);
String message = checkUserCreationRequirements();
if (message == null) {
finish();
return;
}
final AlertController.AlertParams ap = mAlertParams;
ap.mMessage = message;
ap.mPositiveButtonText = getString(android.R.string.ok);
ap.mPositiveButtonListener = this;
// Show the negative button if the user actually has a choice
if (mCanProceed) {
ap.mNegativeButtonText = getString(android.R.string.cancel);
ap.mNegativeButtonListener = this;
}
setupAlert();
}
private String checkUserCreationRequirements() {
final String callingPackage = getCallingPackage();
if (callingPackage == null) {
throw new SecurityException(
"User Creation intent must be launched with startActivityForResult");
}
final ApplicationInfo appInfo;
try {
appInfo = getPackageManager().getApplicationInfo(callingPackage, 0);
} catch (NameNotFoundException nnfe) {
throw new SecurityException(
"Cannot find the calling package");
}
final String message;
// Check the user restrictions
boolean cantCreateUser = mUserManager.hasUserRestriction(UserManager.DISALLOW_ADD_USER)
|| !mUserManager.isAdminUser();
// Check the system state and user count
boolean cantCreateAnyMoreUsers = !mUserManager.canAddMoreUsers(USER_TYPE);
// Check the account existence
final Account account = new Account(mAccountName, mAccountType);
boolean accountExists = mAccountName != null && mAccountType != null
&& (AccountManager.get(this).someUserHasAccount(account)
| mUserManager.someUserHasSeedAccount(mAccountName, mAccountType));
mCanProceed = true;
final String appName = appInfo.loadLabel(getPackageManager()).toString();
if (cantCreateUser) {
setResult(UserManager.USER_CREATION_FAILED_NOT_PERMITTED);
return null;
} else if (!(isUserPropertyWithinLimit(mUserName, UserManager.MAX_USER_NAME_LENGTH)
&& isUserPropertyWithinLimit(mAccountName, UserManager.MAX_ACCOUNT_STRING_LENGTH)
&& isUserPropertyWithinLimit(mAccountType, UserManager.MAX_ACCOUNT_STRING_LENGTH))
|| (mAccountOptions != null && !mAccountOptions.isBundleContentsWithinLengthLimit(
UserManager.MAX_ACCOUNT_OPTIONS_LENGTH))) {
setResult(UserManager.USER_CREATION_FAILED_NOT_PERMITTED);
Log.i(TAG, "User properties must not exceed their character limits");
return null;
} else if (cantCreateAnyMoreUsers) {
setResult(UserManager.USER_CREATION_FAILED_NO_MORE_USERS);
return null;
} else if (accountExists) {
message = getString(R.string.user_creation_account_exists, appName, mAccountName);
} else {
message = getString(R.string.user_creation_adding, appName, mAccountName);
}
return message;
}
@Override
public void onClick(DialogInterface dialog, int which) {
setResult(RESULT_CANCELED);
if (which == BUTTON_POSITIVE && mCanProceed) {
Log.i(TAG, "Ok, creating user");
UserInfo user = mUserManager.createUser(mUserName, USER_TYPE, 0);
if (user == null) {
Log.e(TAG, "Couldn't create user");
finish();
return;
}
mUserManager.setSeedAccountData(user.id, mAccountName, mAccountType, mAccountOptions);
setResult(RESULT_OK);
}
finish();
}
private boolean isUserPropertyWithinLimit(String property, int limit) {
return property == null || property.length() <= limit;
}
}
|
