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/*
* Copyright (C) 2015 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;
import android.app.Activity;
import android.app.ActivityManagerNative;
import android.app.AlertDialog;
import android.app.AppGlobals;
import android.app.IActivityManager;
import android.app.admin.DevicePolicyManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.Process;
import android.os.RemoteException;
import android.os.UserHandle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import com.android.settingslib.RestrictedLockUtils;
import com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
public class ShowAdminSupportDetailsDialog extends Activity
implements DialogInterface.OnDismissListener {
private static final String TAG = "AdminSupportDialog";
private DevicePolicyManager mDpm;
private EnforcedAdmin mEnforcedAdmin;
private View mDialogView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mDpm = getSystemService(DevicePolicyManager.class);
mEnforcedAdmin = getAdminDetailsFromIntent(getIntent());
AlertDialog.Builder builder = new AlertDialog.Builder(this);
mDialogView = LayoutInflater.from(builder.getContext()).inflate(
R.layout.admin_support_details_dialog, null);
initializeDialogViews(mDialogView, mEnforcedAdmin.component, mEnforcedAdmin.userId);
builder.setOnDismissListener(this)
.setPositiveButton(R.string.okay, null)
.setView(mDialogView)
.show();
}
@Override
public void onNewIntent(Intent intent) {
super.onNewIntent(intent);
EnforcedAdmin admin = getAdminDetailsFromIntent(intent);
if (!mEnforcedAdmin.equals(admin)) {
mEnforcedAdmin = admin;
initializeDialogViews(mDialogView, mEnforcedAdmin.component, mEnforcedAdmin.userId);
}
}
private EnforcedAdmin getAdminDetailsFromIntent(Intent intent) {
EnforcedAdmin admin = new EnforcedAdmin(null, UserHandle.myUserId());
if (intent == null) {
return admin;
}
// Only allow apps with MANAGE_DEVICE_ADMINS permission to specify admin and user.
if (checkIfCallerHasPermission(android.Manifest.permission.MANAGE_DEVICE_ADMINS)) {
admin.component = intent.getParcelableExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN);
admin.userId = intent.getIntExtra(Intent.EXTRA_USER_ID, UserHandle.myUserId());
}
return admin;
}
private boolean checkIfCallerHasPermission(String permission) {
IActivityManager am = ActivityManagerNative.getDefault();
try {
final int uid = am.getLaunchedFromUid(getActivityToken());
return AppGlobals.getPackageManager().checkUidPermission(permission, uid)
== PackageManager.PERMISSION_GRANTED;
} catch (RemoteException e) {
Log.e(TAG, "Could not talk to activity manager.", e);
}
return false;
}
private void initializeDialogViews(View root, ComponentName admin, int userId) {
if (admin != null) {
if (!RestrictedLockUtils.isAdminInCurrentUserOrProfile(this, admin)
|| !RestrictedLockUtils.isCurrentUserOrProfile(this, userId)) {
admin = null;
} else {
ActivityInfo ai = null;
try {
ai = AppGlobals.getPackageManager().getReceiverInfo(admin, 0 /* flags */,
userId);
} catch (RemoteException e) {
Log.w(TAG, "Missing reciever info", e);
}
if (ai != null) {
Drawable icon = ai.loadIcon(getPackageManager());
Drawable badgedIcon = getPackageManager().getUserBadgedIcon(
icon, new UserHandle(userId));
((ImageView) root.findViewById(R.id.admin_support_icon)).setImageDrawable(
badgedIcon);
}
}
}
setAdminSupportDetails(this, root, new EnforcedAdmin(admin, userId), true);
}
public static void setAdminSupportDetails(final Activity activity, View root,
final EnforcedAdmin enforcedAdmin, final boolean finishActivity) {
if (enforcedAdmin == null) {
return;
}
if (enforcedAdmin.component != null) {
DevicePolicyManager dpm = (DevicePolicyManager) activity.getSystemService(
Context.DEVICE_POLICY_SERVICE);
if (!RestrictedLockUtils.isAdminInCurrentUserOrProfile(activity,
enforcedAdmin.component) || !RestrictedLockUtils.isCurrentUserOrProfile(
activity, enforcedAdmin.userId)) {
enforcedAdmin.component = null;
} else {
if (enforcedAdmin.userId == UserHandle.USER_NULL) {
enforcedAdmin.userId = UserHandle.myUserId();
}
CharSequence supportMessage = null;
if (UserHandle.isSameApp(Process.myUid(), Process.SYSTEM_UID)) {
supportMessage = dpm.getShortSupportMessageForUser(
enforcedAdmin.component, enforcedAdmin.userId);
}
if (supportMessage != null) {
TextView textView = (TextView) root.findViewById(R.id.admin_support_msg);
textView.setText(supportMessage);
}
}
}
root.findViewById(R.id.admins_policies_list).setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent();
if (enforcedAdmin.component != null) {
intent.setClass(activity, DeviceAdminAdd.class);
intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN,
enforcedAdmin.component);
intent.putExtra(DeviceAdminAdd.EXTRA_CALLED_FROM_SUPPORT_DIALOG, true);
// DeviceAdminAdd class may need to run as managed profile.
activity.startActivityAsUser(intent,
new UserHandle(enforcedAdmin.userId));
} else {
intent.setClass(activity, Settings.DeviceAdminSettingsActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
// Activity merges both managed profile and parent users
// admins so show as same user as this activity.
activity.startActivity(intent);
}
if (finishActivity) {
activity.finish();
}
}
});
}
@Override
public void onDismiss(DialogInterface dialog) {
finish();
}
}