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/*
* Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
* Copyright (C) 2010-2014 Thialfihar <thi@thialfihar.org>
* Copyright (C) 2015 Vincent Breitmoser <valodim@mugenguild.com>
*
* 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.operations;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.net.Proxy;
import java.util.concurrent.atomic.AtomicBoolean;
import android.content.Context;
import android.support.annotation.NonNull;
import org.spongycastle.bcpg.ArmoredOutputStream;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.keyimport.HkpKeyserver;
import org.sufficientlysecure.keychain.keyimport.Keyserver.AddKeyException;
import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
import org.sufficientlysecure.keychain.operations.results.UploadResult;
import org.sufficientlysecure.keychain.pgp.CanonicalizedKeyRing;
import org.sufficientlysecure.keychain.pgp.CanonicalizedPublicKeyRing;
import org.sufficientlysecure.keychain.pgp.Progressable;
import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
import org.sufficientlysecure.keychain.provider.ProviderHelper;
import org.sufficientlysecure.keychain.service.UploadKeyringParcel;
import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
import org.sufficientlysecure.keychain.service.input.RequiredInputParcel;
import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
import org.sufficientlysecure.keychain.util.Log;
import org.sufficientlysecure.keychain.util.Preferences;
import org.sufficientlysecure.keychain.util.orbot.OrbotHelper;
/**
* An operation class which implements high level export operations.
* This class receives a source and/or destination of keys as input and performs
* all steps for this export.
*
* @see org.sufficientlysecure.keychain.ui.adapter.ImportKeysAdapter#getSelectedEntries()
* For the export operation, the input consists of a set of key ids and
* either the name of a file or an output uri to write to.
*/
public class UploadOperation extends BaseOperation<UploadKeyringParcel> {
public UploadOperation(Context context, ProviderHelper providerHelper, Progressable
progressable) {
super(context, providerHelper, progressable);
}
public UploadOperation(Context context, ProviderHelper providerHelper,
Progressable progressable, AtomicBoolean cancelled) {
super(context, providerHelper, progressable, cancelled);
}
@NonNull
public UploadResult execute(UploadKeyringParcel uploadInput, CryptoInputParcel cryptoInput) {
Proxy proxy;
if (cryptoInput.getParcelableProxy() == null) {
// explicit proxy not set
if (!OrbotHelper.isOrbotInRequiredState(mContext)) {
return new UploadResult(null, RequiredInputParcel.createOrbotRequiredOperation(), cryptoInput);
}
proxy = Preferences.getPreferences(mContext).getProxyPrefs().parcelableProxy.getProxy();
} else {
proxy = cryptoInput.getParcelableProxy().getProxy();
}
HkpKeyserver hkpKeyserver = new HkpKeyserver(uploadInput.mKeyserver);
try {
CanonicalizedPublicKeyRing keyring;
if (uploadInput.mMasterKeyId != null) {
keyring = mProviderHelper.getCanonicalizedPublicKeyRing(
uploadInput.mMasterKeyId);
} else if (uploadInput.mUncachedKeyringBytes != null) {
CanonicalizedKeyRing canonicalizedRing =
UncachedKeyRing.decodeFromData(uploadInput.mUncachedKeyringBytes)
.canonicalize(new OperationLog(), 0, true);
if ( ! CanonicalizedPublicKeyRing.class.isInstance(canonicalizedRing)) {
throw new AssertionError("keyring bytes must contain public key ring!");
}
keyring = (CanonicalizedPublicKeyRing) canonicalizedRing;
} else {
throw new AssertionError("key id or bytes must be non-null!");
}
return uploadKeyRingToServer(hkpKeyserver, keyring, proxy);
} catch (ProviderHelper.NotFoundException e) {
Log.e(Constants.TAG, "error uploading key", e);
return new UploadResult(UploadResult.RESULT_ERROR, new OperationLog());
} catch (IOException e) {
e.printStackTrace();
return new UploadResult(UploadResult.RESULT_ERROR, new OperationLog());
} catch (PgpGeneralException e) {
e.printStackTrace();
return new UploadResult(UploadResult.RESULT_ERROR, new OperationLog());
}
}
UploadResult uploadKeyRingToServer(HkpKeyserver server, CanonicalizedPublicKeyRing keyring, Proxy proxy) {
mProgressable.setProgress(R.string.progress_uploading, 0, 1);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ArmoredOutputStream aos = null;
OperationLog log = new OperationLog();
log.add(LogType.MSG_EXPORT_UPLOAD_PUBLIC, 0, KeyFormattingUtils.convertKeyIdToHex(
keyring.getPublicKey().getKeyId()
));
try {
aos = new ArmoredOutputStream(bos);
keyring.encode(aos);
aos.close();
String armoredKey = bos.toString("UTF-8");
server.add(armoredKey, proxy);
log.add(LogType.MSG_EXPORT_UPLOAD_SUCCESS, 1);
return new UploadResult(UploadResult.RESULT_OK, log);
} catch (IOException e) {
Log.e(Constants.TAG, "IOException", e);
log.add(LogType.MSG_EXPORT_ERROR_KEY, 1);
return new UploadResult(UploadResult.RESULT_ERROR, log);
} catch (AddKeyException e) {
Log.e(Constants.TAG, "AddKeyException", e);
log.add(LogType.MSG_EXPORT_ERROR_UPLOAD, 1);
return new UploadResult(UploadResult.RESULT_ERROR, log);
} finally {
mProgressable.setProgress(R.string.progress_uploading, 1, 1);
try {
if (aos != null) {
aos.close();
}
bos.close();
} catch (IOException e) {
// this is just a finally thing, no matter if it doesn't work out.
}
}
}
}
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