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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 android.support.annotation.Nullable;
import org.bouncycastle.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.ParcelableProxy;
import org.sufficientlysecure.keychain.util.Preferences;
import org.sufficientlysecure.keychain.util.Preferences.ProxyPrefs;
import org.sufficientlysecure.keychain.util.orbot.OrbotHelper;
/**
* An operation class which implements the upload of a single key to a key server.
*/
public class UploadOperation extends BaseOperation<UploadKeyringParcel> {
public UploadOperation(Context context, ProviderHelper providerHelper,
Progressable progressable, AtomicBoolean cancelled) {
super(context, providerHelper, progressable, cancelled);
}
@NonNull
public UploadResult execute(UploadKeyringParcel uploadInput, CryptoInputParcel cryptoInput) {
OperationLog log = new OperationLog();
log.add(LogType.MSG_UPLOAD, 0);
updateProgress(R.string.progress_uploading, 0, 1);
Proxy proxy;
{
boolean proxyIsTor = false;
// Proxy priorities:
// 1. explicit proxy
// 2. orbot proxy state
// 3. proxy from preferences
ParcelableProxy parcelableProxy = cryptoInput.getParcelableProxy();
if (parcelableProxy != null) {
proxy = parcelableProxy.getProxy();
} else {
if ( ! OrbotHelper.isOrbotInRequiredState(mContext)) {
return new UploadResult(log, RequiredInputParcel.createOrbotRequiredOperation(), cryptoInput);
}
ProxyPrefs proxyPrefs = Preferences.getPreferences(mContext).getProxyPrefs();
if (proxyPrefs.torEnabled) {
proxyIsTor = true;
}
proxy = proxyPrefs.getProxy();
}
if (proxyIsTor) {
log.add(LogType.MSG_UPLOAD_PROXY_TOR, 1);
} else if (proxy == Proxy.NO_PROXY) {
log.add(LogType.MSG_UPLOAD_PROXY_DIRECT, 1);
} else {
log.add(LogType.MSG_UPLOAD_PROXY, 1, proxy.toString());
}
}
HkpKeyserver hkpKeyserver;
{
hkpKeyserver = new HkpKeyserver(uploadInput.mKeyserver, proxy);
log.add(LogType.MSG_UPLOAD_SERVER, 1, hkpKeyserver.toString());
}
CanonicalizedPublicKeyRing keyring = getPublicKeyringFromInput(log, uploadInput);
if (keyring == null) {
return new UploadResult(UploadResult.RESULT_ERROR, log);
}
return uploadKeyRingToServer(log, hkpKeyserver, keyring);
}
@Nullable
private CanonicalizedPublicKeyRing getPublicKeyringFromInput(OperationLog log, UploadKeyringParcel uploadInput) {
boolean hasMasterKeyId = uploadInput.mMasterKeyId != null;
boolean hasKeyringBytes = uploadInput.mUncachedKeyringBytes != null;
if (hasMasterKeyId == hasKeyringBytes) {
throw new IllegalArgumentException("either keyid xor bytes must be non-null for this method call!");
}
try {
if (hasMasterKeyId) {
log.add(LogType.MSG_UPLOAD_KEY, 0, KeyFormattingUtils.convertKeyIdToHex(uploadInput.mMasterKeyId));
return mProviderHelper.getCanonicalizedPublicKeyRing(uploadInput.mMasterKeyId);
}
CanonicalizedKeyRing canonicalizedRing =
UncachedKeyRing.decodeFromData(uploadInput.mUncachedKeyringBytes)
.canonicalize(new OperationLog(), 0, true);
if ( ! CanonicalizedPublicKeyRing.class.isInstance(canonicalizedRing)) {
throw new IllegalArgumentException("keyring bytes must contain public key ring!");
}
log.add(LogType.MSG_UPLOAD_KEY, 0, KeyFormattingUtils.convertKeyIdToHex(canonicalizedRing.getMasterKeyId()));
return (CanonicalizedPublicKeyRing) canonicalizedRing;
} catch (ProviderHelper.NotFoundException e) {
log.add(LogType.MSG_UPLOAD_ERROR_NOT_FOUND, 1);
return null;
} catch (IOException | PgpGeneralException e) {
log.add(LogType.MSG_UPLOAD_ERROR_IO, 1);
Log.e(Constants.TAG, "error uploading key", e);
return null;
}
}
@NonNull
private UploadResult uploadKeyRingToServer(
OperationLog log, HkpKeyserver server, CanonicalizedPublicKeyRing keyring) {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ArmoredOutputStream aos = null;
try {
aos = new ArmoredOutputStream(bos);
keyring.encode(aos);
aos.close();
String armoredKey = bos.toString("UTF-8");
server.add(armoredKey);
updateProgress(R.string.progress_uploading, 1, 1);
log.add(LogType.MSG_UPLOAD_SUCCESS, 1);
return new UploadResult(UploadResult.RESULT_OK, log);
} catch (IOException e) {
Log.e(Constants.TAG, "IOException", e);
log.add(LogType.MSG_UPLOAD_ERROR_IO, 1);
return new UploadResult(UploadResult.RESULT_ERROR, log);
} catch (AddKeyException e) {
Log.e(Constants.TAG, "AddKeyException", e);
log.add(LogType.MSG_UPLOAD_ERROR_UPLOAD, 1);
return new UploadResult(UploadResult.RESULT_ERROR, log);
} finally {
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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