156 lines
5.7 KiB
Java
156 lines
5.7 KiB
Java
/*
|
|
* Copyright (C) 2017 Schürmann & Breitmoser GbR
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
package org.sufficientlysecure.keychain.keyimport.processing;
|
|
|
|
|
|
import android.content.Context;
|
|
import androidx.annotation.NonNull;
|
|
import androidx.loader.content.AsyncTaskLoader;
|
|
|
|
import org.sufficientlysecure.keychain.keyimport.ImportKeysListEntry;
|
|
import org.sufficientlysecure.keychain.operations.results.GetKeyResult;
|
|
import org.sufficientlysecure.keychain.operations.results.OperationResult;
|
|
import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
|
|
import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
|
|
import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
|
|
import org.sufficientlysecure.keychain.pgp.UncachedKeyRing.IteratorWithIOThrow;
|
|
import org.sufficientlysecure.keychain.util.FileHelper;
|
|
import org.sufficientlysecure.keychain.util.InputData;
|
|
import org.sufficientlysecure.keychain.util.PositionAwareInputStream;
|
|
import timber.log.Timber;
|
|
|
|
import java.io.BufferedInputStream;
|
|
import java.io.ByteArrayInputStream;
|
|
import java.io.FileNotFoundException;
|
|
import java.io.IOException;
|
|
import java.io.InputStream;
|
|
import java.util.ArrayList;
|
|
|
|
public class ImportKeysListLoader
|
|
extends AsyncTaskLoader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> {
|
|
|
|
private Context mContext;
|
|
private BytesLoaderState mState;
|
|
|
|
private ArrayList<ImportKeysListEntry> mData = new ArrayList<>();
|
|
private AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>> mEntryListWrapper;
|
|
|
|
public ImportKeysListLoader(Context context, BytesLoaderState loaderState) {
|
|
super(context);
|
|
mContext = context;
|
|
mState = loaderState;
|
|
}
|
|
|
|
@Override
|
|
public AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>> loadInBackground() {
|
|
// This has already been loaded! nvm any further, just return
|
|
if (mEntryListWrapper != null) {
|
|
return mEntryListWrapper;
|
|
}
|
|
|
|
{
|
|
GetKeyResult getKeyResult = new GetKeyResult(GetKeyResult.RESULT_OK, null);
|
|
mEntryListWrapper = new AsyncTaskResultWrapper<>(mData, getKeyResult);
|
|
}
|
|
|
|
if (mState == null) {
|
|
Timber.e("Input data is null!");
|
|
return mEntryListWrapper;
|
|
}
|
|
|
|
try {
|
|
InputData inputData = getInputData(mState);
|
|
generateListOfKeyrings(inputData);
|
|
} catch (FileNotFoundException e) {
|
|
OperationLog log = new OperationLog();
|
|
log.add(LogType.MSG_GET_FILE_NOT_FOUND, 0);
|
|
GetKeyResult getKeyResult = new GetKeyResult(GetKeyResult.RESULT_ERROR_FILE_NOT_FOUND, log);
|
|
mEntryListWrapper = new AsyncTaskResultWrapper<>(mData, getKeyResult);
|
|
}
|
|
|
|
return mEntryListWrapper;
|
|
}
|
|
|
|
@Override
|
|
protected void onReset() {
|
|
super.onReset();
|
|
|
|
// Ensure the loader is stopped
|
|
onStopLoading();
|
|
}
|
|
|
|
@Override
|
|
protected void onStartLoading() {
|
|
super.forceLoad();
|
|
}
|
|
|
|
@Override
|
|
protected void onStopLoading() {
|
|
super.cancelLoad();
|
|
}
|
|
|
|
/**
|
|
* Reads all PGPKeyRing objects from the bytes of an InputData object.
|
|
*/
|
|
private void generateListOfKeyrings(InputData inputData) {
|
|
PositionAwareInputStream progressIn = new PositionAwareInputStream(
|
|
inputData.getInputStream());
|
|
|
|
// need to have access to the bufferedInput, so we can reuse it for the possible
|
|
// PGPObject chunks after the first one, e.g. files with several consecutive ASCII
|
|
// armor blocks
|
|
BufferedInputStream bufferedInput = new BufferedInputStream(progressIn);
|
|
try {
|
|
// parse all keyrings
|
|
IteratorWithIOThrow<UncachedKeyRing> it = UncachedKeyRing.fromStream(bufferedInput);
|
|
while (it.hasNext()) {
|
|
mData.add(new ImportKeysListEntry(mContext, it.next()));
|
|
}
|
|
} catch (IOException e) {
|
|
Timber.e(e, "IOException on parsing key file! Return NoValidKeysException!");
|
|
if (mData.isEmpty()) {
|
|
OperationResult.OperationLog log = new OperationResult.OperationLog();
|
|
log.add(OperationResult.LogType.MSG_GET_NO_VALID_KEYS, 0);
|
|
GetKeyResult getKeyResult = new GetKeyResult(GetKeyResult.RESULT_ERROR_NO_VALID_KEYS, log);
|
|
mData.clear();
|
|
mEntryListWrapper = new AsyncTaskResultWrapper<>(mData, getKeyResult);
|
|
}
|
|
}
|
|
}
|
|
|
|
@NonNull
|
|
private InputData getInputData(BytesLoaderState ls)
|
|
throws FileNotFoundException {
|
|
|
|
InputData inputData;
|
|
if (ls.mKeyBytes != null) {
|
|
inputData = new InputData(new ByteArrayInputStream(ls.mKeyBytes), ls.mKeyBytes.length);
|
|
} else if (ls.mDataUri != null) {
|
|
InputStream inputStream = mContext.getContentResolver().openInputStream(ls.mDataUri);
|
|
long length = FileHelper.getFileSize(mContext, ls.mDataUri, -1);
|
|
|
|
inputData = new InputData(inputStream, length);
|
|
} else {
|
|
throw new AssertionError("Loader state must contain bytes or a data URI. This is a bug!");
|
|
}
|
|
|
|
return inputData;
|
|
}
|
|
|
|
}
|