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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.packageinstaller.permission.utils;
import android.content.pm.PackageInfo;
import android.util.EventLog;
import com.android.packageinstaller.permission.model.AppPermissionGroup;
import java.util.List;
public final class SafetyNetLogger {
// The log tag used by SafetyNet to pick entries from the event log.
private static final int SNET_NET_EVENT_LOG_TAG = 0x534e4554;
// Log tag for the result of permissions request.
private static final String PERMISSIONS_REQUESTED = "permissions_requested";
// Log tag for the result of permissions toggling.
private static final String PERMISSIONS_TOGGLED = "permissions_toggled";
private SafetyNetLogger() {
/* do nothing */
}
public static void logPermissionsRequested(PackageInfo packageInfo,
List<AppPermissionGroup> groups) {
EventLog.writeEvent(SNET_NET_EVENT_LOG_TAG, PERMISSIONS_REQUESTED,
packageInfo.applicationInfo.uid, buildChangedGroupForPackageMessage(
packageInfo.packageName, groups));
}
public static void logPermissionsToggled(String packageName, List<AppPermissionGroup> groups) {
EventLog.writeEvent(SNET_NET_EVENT_LOG_TAG, PERMISSIONS_TOGGLED,
android.os.Process.myUid(), buildChangedGroupForPackageMessage(
packageName, groups));
}
private static String buildChangedGroupForPackageMessage(String packageName,
List<AppPermissionGroup> groups) {
StringBuilder builder = new StringBuilder();
builder.append(packageName).append(':');
final int groupCount = groups.size();
for (int i = 0; i < groupCount; i++) {
AppPermissionGroup group = groups.get(i);
if (i > 0) {
builder.append(';');
}
builder.append(group.getName()).append('|');
builder.append(group.areRuntimePermissionsGranted()).append('|');
builder.append(group.getFlags());
}
return builder.toString();
}
}
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