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/*
* Copyright (C) 2013 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.server.pm;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
public class PackageKeySetData {
private long[] mSigningKeySets;
private long[] mDefinedKeySets;
private final Map<String, Long> mKeySetAliases;
PackageKeySetData() {
mSigningKeySets = new long[0];
mDefinedKeySets = new long[0];
mKeySetAliases = new HashMap<String, Long>();
}
PackageKeySetData(PackageKeySetData original) {
mSigningKeySets = original.getSigningKeySets().clone();
mDefinedKeySets = original.getDefinedKeySets().clone();
mKeySetAliases = new HashMap<String, Long>();
mKeySetAliases.putAll(original.getAliases());
}
public void addSigningKeySet(long ks) {
// deduplicate
for (long knownKeySet : mSigningKeySets) {
if (ks == knownKeySet) {
return;
}
}
int end = mSigningKeySets.length;
mSigningKeySets = Arrays.copyOf(mSigningKeySets, end + 1);
mSigningKeySets[end] = ks;
}
public void removeSigningKeySet(long ks) {
if (packageIsSignedBy(ks)) {
long[] keysets = new long[mSigningKeySets.length - 1];
int index = 0;
for (long signingKeySet : mSigningKeySets) {
if (signingKeySet != ks) {
keysets[index] = signingKeySet;
index += 1;
}
}
mSigningKeySets = keysets;
}
}
public void addDefinedKeySet(long ks, String alias) {
// deduplicate
for (long knownKeySet : mDefinedKeySets) {
if (ks == knownKeySet) {
return;
}
}
int end = mDefinedKeySets.length;
mDefinedKeySets = Arrays.copyOf(mDefinedKeySets, end + 1);
mDefinedKeySets[end] = ks;
mKeySetAliases.put(alias, ks);
}
public void removeDefinedKeySet(long ks) {
if (mKeySetAliases.containsValue(ks)) {
long[] keysets = new long[mDefinedKeySets.length - 1];
int index = 0;
for (long definedKeySet : mDefinedKeySets) {
if (definedKeySet != ks) {
keysets[index] = definedKeySet;
index += 1;
}
}
mDefinedKeySets = keysets;
for (String alias : mKeySetAliases.keySet()) {
if (mKeySetAliases.get(alias) == ks) {
mKeySetAliases.remove(alias);
break;
}
}
}
}
public boolean packageIsSignedBy(long ks) {
for (long signingKeySet : mSigningKeySets) {
if (ks == signingKeySet) {
return true;
}
}
return false;
}
public long[] getSigningKeySets() {
return mSigningKeySets;
}
public long[] getDefinedKeySets() {
return mDefinedKeySets;
}
public Map<String, Long> getAliases() {
return mKeySetAliases;
}
}
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