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Remove unused DataStore class

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Bug: 407940468
Test: atest NetworkSecurityUnitTests
Flag: com.android.net.ct.flags.certificate_transparency_service
Change-Id: I8338087263c3f61bad061ac7687cd20d51685e67
This commit is contained in:
Sandro Montanari 2025-04-10 12:30:05 +00:00
commit 9af93249bd
1 changed files with 0 additions and 116 deletions
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116
networksecurity/service/src/com/android/server/net/ct/DataStore.java
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@ -1,116 +0,0 @@
/*
* Copyright (C) 2024 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.net.ct;
import android.util.Log;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Optional;
import java.util.Properties;
import java.util.Set;
/** Class to persist data needed by CT. */
class DataStore extends Properties {
private static final String TAG = "CertificateTransparency";
private static final long MAX_FILE_SIZE = 20 * 1024; // 20KB
private static final int MAX_KEY_SIZE = 50;
private final File mPropertyFile;
DataStore(File file) {
super();
mPropertyFile = file;
}
void load() {
if (!mPropertyFile.exists()) {
return;
}
if (!validatePropertyFile()) {
Log.e(TAG, "Invalid property file, not load it!");
delete();
return;
}
try (InputStream in = new FileInputStream(mPropertyFile)) {
load(in);
if (!validateProperties()) {
Log.e(TAG, "Invalid property store, clear it!");
delete();
return;
}
} catch (IOException | IllegalArgumentException e) {
Log.e(TAG, "Error loading property store", e);
delete();
}
}
private boolean validateProperties() {
Set<String> keys = stringPropertyNames();
for (String key : keys) {
if (key.length() > MAX_KEY_SIZE) {
Log.e(TAG, "Unexpected Property: " + key);
return false;
}
}
return true;
}
private boolean validatePropertyFile() {
if (mPropertyFile.length() > MAX_FILE_SIZE) {
Log.e(TAG, "Property file size exceeds " + MAX_FILE_SIZE + "!");
return false;
}
return true;
}
void store() {
try (FileOutputStream out = new FileOutputStream(mPropertyFile)) {
store(out, "");
out.getFD().sync();
} catch (IOException e) {
Log.e(TAG, "Error storing property store", e);
}
}
boolean delete() {
clear();
return mPropertyFile.delete();
}
long getPropertyLong(String key, long defaultValue) {
return Optional.ofNullable(getProperty(key)).map(Long::parseLong).orElse(defaultValue);
}
Object setPropertyLong(String key, long value) {
return setProperty(key, Long.toString(value));
}
int getPropertyInt(String key, int defaultValue) {
return Optional.ofNullable(getProperty(key)).map(Integer::parseInt).orElse(defaultValue);
}
Object setPropertyInt(String key, int value) {
return setProperty(key, Integer.toString(value));
}
}