2015-03-06 19:08:47 +00:00
|
|
|
/*
|
2015-10-03 20:47:05 +00:00
|
|
|
* Copyright 2013-2015 microG Project Team
|
2015-03-06 19:08:47 +00:00
|
|
|
*
|
|
|
|
* 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 org.microg.gms.common;
|
|
|
|
|
|
|
|
import android.content.Context;
|
|
|
|
import android.content.pm.PackageInfo;
|
|
|
|
import android.content.pm.PackageManager;
|
|
|
|
import android.content.pm.Signature;
|
|
|
|
|
|
|
|
import java.security.MessageDigest;
|
|
|
|
import java.security.NoSuchAlgorithmException;
|
|
|
|
import java.util.Arrays;
|
|
|
|
|
|
|
|
public class PackageUtils {
|
|
|
|
public static void checkPackageUid(Context context, String packageName, int callingUid) {
|
|
|
|
String[] packagesForUid = context.getPackageManager().getPackagesForUid(callingUid);
|
|
|
|
if (packagesForUid != null && !Arrays.asList(packagesForUid).contains(packageName)) {
|
|
|
|
throw new SecurityException("callingUid [" + callingUid + "] is not related to packageName [" + packageName + "]");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
public static void checkPackageUid(Context context, String packageName, int callerUid, int callingUid) {
|
|
|
|
if (callerUid != 0 && callerUid != callingUid) {
|
|
|
|
throw new SecurityException("callerUid [" + callerUid + "] and real calling uid [" + callingUid + "] mismatch!");
|
|
|
|
}
|
|
|
|
checkPackageUid(context, packageName, callingUid);
|
|
|
|
}
|
|
|
|
|
|
|
|
public static String firstSignatureDigest(Context context, String packageName) {
|
|
|
|
PackageManager packageManager = context.getPackageManager();
|
|
|
|
final PackageInfo info;
|
|
|
|
try {
|
|
|
|
info = packageManager.getPackageInfo(packageName, PackageManager.GET_SIGNATURES);
|
|
|
|
} catch (PackageManager.NameNotFoundException e) {
|
|
|
|
throw new RuntimeException(e);
|
|
|
|
}
|
|
|
|
if (info != null && info.signatures != null && info.signatures.length > 0) {
|
|
|
|
for (Signature sig : info.signatures) {
|
|
|
|
String digest = sha1sum(sig.toByteArray());
|
|
|
|
if (digest != null) {
|
|
|
|
return digest;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return null;
|
|
|
|
}
|
|
|
|
|
|
|
|
public static String sha1sum(byte[] bytes) {
|
|
|
|
MessageDigest md;
|
|
|
|
try {
|
|
|
|
md = MessageDigest.getInstance("SHA1");
|
|
|
|
} catch (final NoSuchAlgorithmException e) {
|
|
|
|
return null;
|
|
|
|
}
|
|
|
|
if (md != null) {
|
|
|
|
bytes = md.digest(bytes);
|
|
|
|
if (bytes != null) {
|
|
|
|
StringBuilder sb = new StringBuilder(2 * bytes.length);
|
|
|
|
for (byte b : bytes) {
|
|
|
|
sb.append(String.format("%02x", b));
|
|
|
|
}
|
|
|
|
return sb.toString();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return null;
|
|
|
|
}
|
|
|
|
|
|
|
|
public static int versionCode(Context context, String packageName) {
|
|
|
|
try {
|
|
|
|
return context.getPackageManager().getPackageInfo(packageName, 0).versionCode;
|
|
|
|
} catch (PackageManager.NameNotFoundException e) {
|
|
|
|
throw new RuntimeException(e);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|