183 lines
6.9 KiB
Java
183 lines
6.9 KiB
Java
/*
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* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
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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.ui;
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import android.app.Activity;
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import android.os.Bundle;
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import android.support.v4.app.Fragment;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import com.tokenautocomplete.TokenCompleteTextView;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
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import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
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import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
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import org.sufficientlysecure.keychain.provider.ProviderHelper;
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import org.sufficientlysecure.keychain.ui.widget.EncryptKeyCompletionView;
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import org.sufficientlysecure.keychain.ui.widget.KeySpinner;
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import org.sufficientlysecure.keychain.util.Log;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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public class EncryptAsymmetricFragment extends Fragment implements EncryptActivityInterface.UpdateListener {
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ProviderHelper mProviderHelper;
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// view
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private KeySpinner mSign;
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private EncryptKeyCompletionView mEncryptKeyView;
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// model
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private EncryptActivityInterface mEncryptInterface;
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@Override
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public void onNotifyUpdate() {
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if (mSign != null) {
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mSign.setSelectedKeyId(mEncryptInterface.getSignatureKey());
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}
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}
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@Override
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public void onAttach(Activity activity) {
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super.onAttach(activity);
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try {
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mEncryptInterface = (EncryptActivityInterface) activity;
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} catch (ClassCastException e) {
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throw new ClassCastException(activity.toString() + " must implement EncryptActivityInterface");
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}
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}
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private void setSignatureKeyId(long signatureKeyId) {
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mEncryptInterface.setSignatureKey(signatureKeyId);
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}
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private void setEncryptionKeyIds(long[] encryptionKeyIds) {
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mEncryptInterface.setEncryptionKeys(encryptionKeyIds);
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}
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private void setEncryptionUserIds(String[] encryptionUserIds) {
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mEncryptInterface.setEncryptionUsers(encryptionUserIds);
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}
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/**
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* Inflate the layout for this fragment
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*/
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
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View view = inflater.inflate(R.layout.encrypt_asymmetric_fragment, container, false);
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mSign = (KeySpinner) view.findViewById(R.id.sign);
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mSign.setOnKeyChangedListener(new KeySpinner.OnKeyChangedListener() {
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@Override
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public void onKeyChanged(long masterKeyId) {
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setSignatureKeyId(masterKeyId);
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}
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});
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mEncryptKeyView = (EncryptKeyCompletionView) view.findViewById(R.id.recipient_list);
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mEncryptKeyView.setThreshold(1); // Start working from first character
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return view;
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}
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@Override
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public void onActivityCreated(Bundle savedInstanceState) {
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super.onActivityCreated(savedInstanceState);
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mProviderHelper = new ProviderHelper(getActivity());
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// preselect keys given
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preselectKeys();
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mEncryptKeyView.setTokenListener(new TokenCompleteTextView.TokenListener() {
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@Override
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public void onTokenAdded(Object token) {
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if (token instanceof EncryptKeyCompletionView.EncryptionKey) {
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updateEncryptionKeys();
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}
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}
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@Override
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public void onTokenRemoved(Object token) {
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if (token instanceof EncryptKeyCompletionView.EncryptionKey) {
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updateEncryptionKeys();
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}
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}
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});
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}
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/**
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* If an Intent gives a signatureMasterKeyId and/or encryptionMasterKeyIds, preselect those!
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*/
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private void preselectKeys() {
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// TODO all of this works under the assumption that the first suitable subkey is always used!
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// not sure if we need to distinguish between different subkeys here?
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long signatureKey = mEncryptInterface.getSignatureKey();
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if (signatureKey != Constants.key.none) {
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try {
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CachedPublicKeyRing keyring = mProviderHelper.getCachedPublicKeyRing(
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KeyRings.buildUnifiedKeyRingUri(signatureKey));
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if (keyring.hasAnySecret()) {
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setSignatureKeyId(keyring.getMasterKeyId());
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mSign.setSelectedKeyId(mEncryptInterface.getSignatureKey());
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}
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} catch (PgpKeyNotFoundException e) {
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Log.e(Constants.TAG, "key not found!", e);
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}
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}
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long[] encryptionKeyIds = mEncryptInterface.getEncryptionKeys();
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if (encryptionKeyIds != null) {
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for (long preselectedId : encryptionKeyIds) {
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try {
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CachedPublicKeyRing ring = mProviderHelper.getCachedPublicKeyRing(
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KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(preselectedId));
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mEncryptKeyView.addObject(mEncryptKeyView.new EncryptionKey(ring));
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} catch (PgpKeyNotFoundException e) {
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Log.e(Constants.TAG, "key not found!", e);
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}
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}
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// This is to work-around a rendering bug in TokenCompleteTextView
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mEncryptKeyView.requestFocus();
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updateEncryptionKeys();
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}
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}
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private void updateEncryptionKeys() {
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List<Object> objects = mEncryptKeyView.getObjects();
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List<Long> keyIds = new ArrayList<>();
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List<String> userIds = new ArrayList<>();
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for (Object object : objects) {
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if (object instanceof EncryptKeyCompletionView.EncryptionKey) {
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keyIds.add(((EncryptKeyCompletionView.EncryptionKey) object).getKeyId());
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userIds.add(((EncryptKeyCompletionView.EncryptionKey) object).getUserId());
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}
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}
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long[] keyIdsArr = new long[keyIds.size()];
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Iterator<Long> iterator = keyIds.iterator();
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for (int i = 0; i < keyIds.size(); i++) {
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keyIdsArr[i] = iterator.next();
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}
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setEncryptionKeyIds(keyIdsArr);
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setEncryptionUserIds(userIds.toArray(new String[userIds.size()]));
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}
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}
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