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/*
* Copyright (C) 2014-2015 Dominik Schürmann <dominik@dominikschuermann.de>
*
* 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.ui;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.ViewAnimator;
import com.tokenautocomplete.TokenCompleteTextView;
import com.tokenautocomplete.TokenCompleteTextView.TokenListener;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.pgp.CanonicalizedPublicKeyRing;
import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
import org.sufficientlysecure.keychain.provider.ProviderHelper;
import org.sufficientlysecure.keychain.provider.ProviderHelper.NotFoundException;
import org.sufficientlysecure.keychain.ui.adapter.KeyAdapter.KeyItem;
import org.sufficientlysecure.keychain.ui.widget.EncryptKeyCompletionView;
import org.sufficientlysecure.keychain.ui.widget.KeySpinner;
import org.sufficientlysecure.keychain.ui.widget.KeySpinner.OnKeyChangedListener;
import org.sufficientlysecure.keychain.util.Log;
import org.sufficientlysecure.keychain.util.Passphrase;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
public class EncryptModeAsymmetricFragment extends EncryptModeFragment {
ProviderHelper mProviderHelper;
private KeySpinner mSignKeySpinner;
private EncryptKeyCompletionView mEncryptKeyView;
public static final String ARG_SINGATURE_KEY_ID = "signature_key_id";
public static final String ARG_ENCRYPTION_KEY_IDS = "encryption_key_ids";
/**
* Creates new instance of this fragment
*/
public static EncryptModeAsymmetricFragment newInstance(long signatureKey, long[] encryptionKeyIds) {
EncryptModeAsymmetricFragment frag = new EncryptModeAsymmetricFragment();
Bundle args = new Bundle();
args.putLong(ARG_SINGATURE_KEY_ID, signatureKey);
args.putLongArray(ARG_ENCRYPTION_KEY_IDS, encryptionKeyIds);
frag.setArguments(args);
return frag;
}
/**
* Inflate the layout for this fragment
*/
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.encrypt_asymmetric_fragment, container, false);
mSignKeySpinner = (KeySpinner) view.findViewById(R.id.sign);
mEncryptKeyView = (EncryptKeyCompletionView) view.findViewById(R.id.recipient_list);
mEncryptKeyView.setThreshold(1); // Start working from first character
final ViewAnimator vSignatureIcon = (ViewAnimator) view.findViewById(R.id.result_signature_icon);
mSignKeySpinner.setOnKeyChangedListener(new OnKeyChangedListener() {
@Override
public void onKeyChanged(long masterKeyId) {
int child = masterKeyId != Constants.key.none ? 1 : 0;
if (vSignatureIcon.getDisplayedChild() != child) {
vSignatureIcon.setDisplayedChild(child);
}
}
});
final ViewAnimator vEncryptionIcon = (ViewAnimator) view.findViewById(R.id.result_encryption_icon);
mEncryptKeyView.setTokenListener(new TokenListener<KeyItem>() {
@Override
public void onTokenAdded(KeyItem o) {
if (vEncryptionIcon.getDisplayedChild() != 1) {
vEncryptionIcon.setDisplayedChild(1);
}
}
@Override
public void onTokenRemoved(KeyItem o) {
int child = mEncryptKeyView.getObjects().isEmpty() ? 0 : 1;
if (vEncryptionIcon.getDisplayedChild() != child) {
vEncryptionIcon.setDisplayedChild(child);
}
}
});
ImageView addRecipientImgView = (ImageView) view.findViewById(R.id.add_recipient);
addRecipientImgView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mEncryptKeyView.showAllKeys();
}
});
return view;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
mProviderHelper = new ProviderHelper(getActivity());
// preselect keys given, from state or arguments
if (savedInstanceState == null) {
Long signatureKeyId = getArguments().getLong(ARG_SINGATURE_KEY_ID);
if (signatureKeyId == Constants.key.none) {
signatureKeyId = null;
}
long[] encryptionKeyIds = getArguments().getLongArray(ARG_ENCRYPTION_KEY_IDS);
preselectKeys(signatureKeyId, encryptionKeyIds);
}
}
/**
* If an Intent gives a signatureMasterKeyId and/or encryptionMasterKeyIds, preselect those!
*/
private void preselectKeys(Long signatureKeyId, long[] encryptionKeyIds) {
if (signatureKeyId != null) {
try {
CachedPublicKeyRing keyring = mProviderHelper.getCachedPublicKeyRing(
KeyRings.buildUnifiedKeyRingUri(signatureKeyId));
if (keyring.hasAnySecret()) {
mSignKeySpinner.setPreSelectedKeyId(signatureKeyId);
}
} catch (PgpKeyNotFoundException e) {
Log.e(Constants.TAG, "key not found!", e);
}
}
if (encryptionKeyIds != null) {
for (long preselectedId : encryptionKeyIds) {
try {
CanonicalizedPublicKeyRing ring =
mProviderHelper.getCanonicalizedPublicKeyRing(preselectedId);
mEncryptKeyView.addObject(new KeyItem(ring));
} catch (NotFoundException e) {
Log.e(Constants.TAG, "key not found!", e);
}
}
// This is to work-around a rendering bug in TokenCompleteTextView
mEncryptKeyView.requestFocus();
}
}
@Override
public boolean isAsymmetric() {
return true;
}
@Override
public long getAsymmetricSigningKeyId() {
return mSignKeySpinner.getSelectedKeyId();
}
@Override
public long[] getAsymmetricEncryptionKeyIds() {
List<Long> keyIds = new ArrayList<>();
for (Object object : mEncryptKeyView.getObjects()) {
if (object instanceof KeyItem) {
keyIds.add(((KeyItem) object).mKeyId);
}
}
long[] keyIdsArr = new long[keyIds.size()];
Iterator<Long> iterator = keyIds.iterator();
for (int i = 0; i < keyIds.size(); i++) {
keyIdsArr[i] = iterator.next();
}
return keyIdsArr;
}
@Override
public String[] getAsymmetricEncryptionUserIds() {
List<String> userIds = new ArrayList<>();
for (Object object : mEncryptKeyView.getObjects()) {
if (object instanceof KeyItem) {
userIds.add(((KeyItem) object).mUserIdFull);
}
}
return userIds.toArray(new String[userIds.size()]);
}
@Override
public Passphrase getSymmetricPassphrase() {
throw new UnsupportedOperationException("should never happen, this is a programming error!");
}
}
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