126 lines
5.6 KiB
Java
126 lines
5.6 KiB
Java
/*
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* Copyright (C) 2017 Schürmann & Breitmoser GbR
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.operations;
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import java.util.ArrayDeque;
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import java.util.ArrayList;
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import java.util.concurrent.atomic.AtomicBoolean;
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import android.content.Context;
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import android.net.Uri;
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import androidx.annotation.NonNull;
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import org.sufficientlysecure.keychain.daos.KeyRepository;
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import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
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import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
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import org.sufficientlysecure.keychain.operations.results.PgpSignEncryptResult;
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import org.sufficientlysecure.keychain.operations.results.SignEncryptResult;
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import org.sufficientlysecure.keychain.pgp.PgpSignEncryptInputParcel;
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import org.sufficientlysecure.keychain.pgp.PgpSignEncryptOperation;
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import org.sufficientlysecure.keychain.pgp.Progressable;
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import org.sufficientlysecure.keychain.pgp.SignEncryptParcel;
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import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
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import org.sufficientlysecure.keychain.service.input.RequiredInputParcel;
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import org.sufficientlysecure.keychain.service.input.RequiredInputParcel.RequiredInputType;
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import org.sufficientlysecure.keychain.service.input.RequiredInputParcel.SecurityTokenSignOperationsBuilder;
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import org.sufficientlysecure.keychain.util.ProgressScaler;
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/**
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* This is a high-level operation, which encapsulates one or more sign/encrypt
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* operations, using URIs or byte arrays as input and output.
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* <p/>
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* This operation is fail-fast: If any sign/encrypt sub-operation fails or returns
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* a pending result, it will terminate.
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*/
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public class SignEncryptOperation extends BaseOperation<SignEncryptParcel> {
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public SignEncryptOperation(Context context, KeyRepository keyRepository,
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Progressable progressable, AtomicBoolean cancelled) {
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super(context, keyRepository, progressable, cancelled);
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}
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@NonNull
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public SignEncryptResult execute(SignEncryptParcel input, CryptoInputParcel cryptoInput) {
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OperationLog log = new OperationLog();
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log.add(LogType.MSG_SE, 0);
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ArrayDeque<Uri> inputUris = new ArrayDeque<>(input.getInputUris());
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ArrayDeque<Uri> outputUris = new ArrayDeque<>(input.getOutputUris());
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byte[] inputBytes = input.getBytes();
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int total = inputBytes != null ? 1 : inputUris.size(), count = 0;
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ArrayList<PgpSignEncryptResult> results = new ArrayList<>();
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SecurityTokenSignOperationsBuilder pendingInputBuilder = null;
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do {
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if (checkCancelled()) {
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log.add(LogType.MSG_OPERATION_CANCELLED, 0);
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return new SignEncryptResult(SignEncryptResult.RESULT_CANCELLED, log, results);
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}
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PgpSignEncryptOperation op = new PgpSignEncryptOperation(mContext, mKeyRepository,
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new ProgressScaler(mProgressable, 100 * count / total, 100 * ++count / total, 100), mCancelled);
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PgpSignEncryptInputParcel inputParcel;
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if (inputBytes != null) {
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inputParcel = PgpSignEncryptInputParcel.createForBytes(
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input.getSignEncryptData(), outputUris.pollFirst(), inputBytes);
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} else {
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inputParcel = PgpSignEncryptInputParcel.createForInputUri(
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input.getSignEncryptData(), outputUris.pollFirst(), inputUris.removeFirst());
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}
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PgpSignEncryptResult result = op.execute(inputParcel, cryptoInput);
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results.add(result);
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log.add(result, 2);
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if (result.isPending()) {
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RequiredInputParcel requiredInput = result.getRequiredInputParcel();
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// Passphrase returns immediately, nfc are aggregated
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if (requiredInput.mType == RequiredInputType.PASSPHRASE) {
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return new SignEncryptResult(log, requiredInput, results, cryptoInput);
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}
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if (pendingInputBuilder == null) {
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pendingInputBuilder = new SecurityTokenSignOperationsBuilder(requiredInput.mSignatureTime,
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requiredInput.getMasterKeyId(), requiredInput.getSubKeyId());
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}
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pendingInputBuilder.addAll(requiredInput);
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} else if (!result.success()) {
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return new SignEncryptResult(SignEncryptResult.RESULT_ERROR, log, results);
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}
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} while (!inputUris.isEmpty());
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if (pendingInputBuilder != null && !pendingInputBuilder.isEmpty()) {
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return new SignEncryptResult(log, pendingInputBuilder.build(), results, cryptoInput);
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}
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if (!outputUris.isEmpty()) {
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throw new AssertionError("Got outputs left but no inputs. This is a programming error, please report!");
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}
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log.add(LogType.MSG_SE_SUCCESS, 1);
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return new SignEncryptResult(SignEncryptResult.RESULT_OK, log, results,
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results.get(results.size() - 1).getOutputBytes());
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}
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}
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