358 lines
13 KiB
Java
358 lines
13 KiB
Java
/*
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* Copyright (C) 2014-2015 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 java.util.Date;
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import java.util.HashSet;
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import java.util.Set;
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import android.app.Activity;
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import android.content.ClipData;
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import android.content.ClipboardManager;
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import android.content.Context;
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import android.content.Intent;
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import android.os.Bundle;
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import android.text.Editable;
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import android.text.TextWatcher;
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import android.view.LayoutInflater;
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import android.view.Menu;
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import android.view.MenuInflater;
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import android.view.MenuItem;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.TextView;
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import org.openintents.openpgp.util.OpenPgpUtils;
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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.operations.results.SignEncryptResult;
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import org.sufficientlysecure.keychain.pgp.KeyRing;
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import org.sufficientlysecure.keychain.pgp.PgpSecurityConstants.OpenKeychainCompressionAlgorithmTags;
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import org.sufficientlysecure.keychain.pgp.PgpSignEncryptData;
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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.ui.base.CachingCryptoOperationFragment;
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import org.sufficientlysecure.keychain.ui.util.Notify;
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import org.sufficientlysecure.keychain.ui.util.Notify.ActionListener;
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import org.sufficientlysecure.keychain.ui.util.Notify.Style;
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import org.sufficientlysecure.keychain.util.Passphrase;
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import org.sufficientlysecure.keychain.util.Preferences;
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public class EncryptTextFragment
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extends CachingCryptoOperationFragment<SignEncryptParcel, SignEncryptResult> {
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public static final String ARG_TEXT = "text";
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public static final String ARG_USE_COMPRESSION = "use_compression";
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public static final String ARG_RETURN_PROCESS_TEXT = "return_process_text";
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private boolean mShareAfterEncrypt;
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private boolean mReturnProcessTextAfterEncrypt;
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private boolean mUseCompression;
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private boolean mHiddenRecipients = false;
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private String mMessage = "";
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/**
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* Creates new instance of this fragment
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*/
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public static EncryptTextFragment newInstance(String text, boolean returnProcessTextAfterEncrypt) {
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EncryptTextFragment frag = new EncryptTextFragment();
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Bundle args = new Bundle();
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args.putString(ARG_TEXT, text);
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args.putBoolean(ARG_RETURN_PROCESS_TEXT, returnProcessTextAfterEncrypt);
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frag.setArguments(args);
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return frag;
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}
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@Override
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public void onAttach(Context context) {
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super.onAttach(context);
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if ( ! (context instanceof EncryptActivity) ) {
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throw new AssertionError(context + " must inherit from EncryptionActivity");
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}
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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_text_fragment, container, false);
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TextView textView = (TextView) view.findViewById(R.id.encrypt_text_text);
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textView.addTextChangedListener(new TextWatcher() {
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@Override
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public void beforeTextChanged(CharSequence s, int start, int count, int after) {
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}
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@Override
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public void onTextChanged(CharSequence s, int start, int before, int count) {
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}
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@Override
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public void afterTextChanged(Editable s) {
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mMessage = s.toString();
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}
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});
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// set initial text
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if (mMessage != null) {
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textView.setText(mMessage);
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}
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return view;
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}
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@Override
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public void onSaveInstanceState(Bundle outState) {
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super.onSaveInstanceState(outState);
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outState.putBoolean(ARG_USE_COMPRESSION, mUseCompression);
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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if (savedInstanceState == null) {
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mMessage = getArguments().getString(ARG_TEXT);
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mReturnProcessTextAfterEncrypt = getArguments().getBoolean(ARG_RETURN_PROCESS_TEXT, false);
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}
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Preferences prefs = Preferences.getPreferences(getActivity());
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Bundle args = savedInstanceState == null ? getArguments() : savedInstanceState;
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mUseCompression = args.getBoolean(ARG_USE_COMPRESSION, true);
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if (args.containsKey(ARG_USE_COMPRESSION)) {
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mUseCompression = args.getBoolean(ARG_USE_COMPRESSION, true);
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} else {
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mUseCompression = prefs.getTextUseCompression();
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}
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setHasOptionsMenu(true);
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}
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@Override
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public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
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super.onCreateOptionsMenu(menu, inflater);
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inflater.inflate(R.menu.encrypt_text_fragment, menu);
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menu.findItem(R.id.check_enable_compression).setChecked(mUseCompression);
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if (mReturnProcessTextAfterEncrypt) {
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menu.findItem(R.id.encrypt_paste).setVisible(true);
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menu.findItem(R.id.encrypt_copy).setVisible(false);
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menu.findItem(R.id.encrypt_share).setVisible(false);
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}
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}
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@Override
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public boolean onOptionsItemSelected(MenuItem item) {
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switch (item.getItemId()) {
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case R.id.check_enable_compression: {
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toggleEnableCompression(item, !item.isChecked());
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break;
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}
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// case R.id.check_hidden_recipients: {
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// mHiddenRecipients = item.isChecked();
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// notifyUpdate();
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// break;
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// }
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case R.id.encrypt_copy: {
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hideKeyboard();
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mShareAfterEncrypt = false;
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cryptoOperation(CryptoInputParcel.createCryptoInputParcel(new Date()));
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break;
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}
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case R.id.encrypt_share: {
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hideKeyboard();
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mShareAfterEncrypt = true;
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cryptoOperation(CryptoInputParcel.createCryptoInputParcel(new Date()));
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break;
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}
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case R.id.encrypt_paste: {
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hideKeyboard();
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cryptoOperation(CryptoInputParcel.createCryptoInputParcel(new Date()));
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break;
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}
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default: {
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return super.onOptionsItemSelected(item);
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}
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}
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return true;
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}
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public void toggleEnableCompression(MenuItem item, final boolean compress) {
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mUseCompression = compress;
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item.setChecked(compress);
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Notify.create(getActivity(), compress
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? R.string.snack_compression_on
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: R.string.snack_compression_off,
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Notify.LENGTH_LONG, Style.OK, new ActionListener() {
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@Override
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public void onAction() {
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Preferences.getPreferences(getActivity()).setTextUseCompression(compress);
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Notify.create(getActivity(), compress
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? R.string.snack_compression_on
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: R.string.snack_compression_off,
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Notify.LENGTH_SHORT, Style.OK, null, R.string.btn_saved)
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.show(EncryptTextFragment.this, false);
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}
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}, R.string.btn_save_default).show(this);
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}
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public SignEncryptParcel createOperationInput() {
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if (mMessage == null || mMessage.isEmpty()) {
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Notify.create(getActivity(), R.string.error_empty_text, Notify.Style.ERROR)
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.show(this);
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return null;
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}
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// fill values for this action
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PgpSignEncryptData.Builder data = PgpSignEncryptData.builder();
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data.setCleartextSignature(true);
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if (!mUseCompression) {
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data.setCompressionAlgorithm(OpenKeychainCompressionAlgorithmTags.UNCOMPRESSED);
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}
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data.setHiddenRecipients(mHiddenRecipients);
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// Always use armor for messages
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data.setEnableAsciiArmorOutput(true);
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EncryptActivity modeInterface = (EncryptActivity) getActivity();
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EncryptModeFragment modeFragment = modeInterface.getModeFragment();
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if (modeFragment.isAsymmetric()) {
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long[] encryptionKeyIds = modeFragment.getAsymmetricEncryptionKeyIds();
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long signingKeyId = modeFragment.getAsymmetricSigningKeyId();
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boolean gotEncryptionKeys = (encryptionKeyIds != null
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&& encryptionKeyIds.length > 0);
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if (!gotEncryptionKeys && signingKeyId == Constants.key.none) {
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Notify.create(getActivity(), R.string.error_no_encryption_or_signature_key, Notify.Style.ERROR)
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.show(this);
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return null;
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}
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data.setEncryptionMasterKeyIds(encryptionKeyIds);
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data.setSignatureMasterKeyId(signingKeyId);
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if (signingKeyId != Constants.key.none) {
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data.setAdditionalEncryptId(signingKeyId);
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}
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} else {
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Passphrase passphrase = modeFragment.getSymmetricPassphrase();
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if (passphrase == null) {
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Notify.create(getActivity(), R.string.passphrases_do_not_match, Notify.Style.ERROR)
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.show(this);
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return null;
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}
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if (passphrase.isEmpty()) {
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Notify.create(getActivity(), R.string.passphrase_must_not_be_empty, Notify.Style.ERROR)
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.show(this);
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return null;
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}
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data.setSymmetricPassphrase(passphrase);
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}
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return SignEncryptParcel.createSignEncryptParcel(data.build(), mMessage.getBytes());
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}
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private void copyToClipboard(SignEncryptResult result) {
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Activity activity = getActivity();
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if (activity == null) {
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return;
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}
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ClipboardManager clipMan = (ClipboardManager) activity.getSystemService(Context.CLIPBOARD_SERVICE);
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if (clipMan == null) {
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Notify.create(activity, R.string.error_clipboard_copy, Style.ERROR).show();
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return;
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}
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ClipData clip = ClipData.newPlainText(Constants.CLIPBOARD_LABEL, new String(result.getResultBytes()));
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clipMan.setPrimaryClip(clip);
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result.createNotify(activity).show();
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}
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private Intent createSendIntent(byte[] resultBytes) {
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Intent sendIntent;
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sendIntent = new Intent(Intent.ACTION_SEND);
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sendIntent.setType(Constants.MIME_TYPE_TEXT);
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sendIntent.putExtra(Intent.EXTRA_TEXT, new String(resultBytes));
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EncryptActivity modeInterface = (EncryptActivity) getActivity();
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EncryptModeFragment modeFragment = modeInterface.getModeFragment();
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if (!modeFragment.isAsymmetric()) {
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return sendIntent;
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}
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String[] encryptionUserIds = modeFragment.getAsymmetricEncryptionUserIds();
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if (encryptionUserIds == null) {
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return sendIntent;
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}
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Set<String> users = new HashSet<>();
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for (String user : encryptionUserIds) {
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OpenPgpUtils.UserId userId = KeyRing.splitUserId(user);
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if (userId.email != null) {
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users.add(userId.email);
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}
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}
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// pass trough email addresses as extra for email applications
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sendIntent.putExtra(Intent.EXTRA_EMAIL, users.toArray(new String[users.size()]));
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return sendIntent;
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}
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@Override
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public void onQueuedOperationSuccess(SignEncryptResult result) {
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super.onQueuedOperationSuccess(result);
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hideKeyboard();
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if (mShareAfterEncrypt) {
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// Share encrypted message/file
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startActivity(Intent.createChooser(createSendIntent(result.getResultBytes()),
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getString(R.string.title_share_message)));
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} else if (mReturnProcessTextAfterEncrypt) {
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Intent resultIntent = new Intent();
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resultIntent.putExtra(Intent.EXTRA_PROCESS_TEXT, new String(result.getResultBytes()));
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getActivity().setResult(Activity.RESULT_OK, resultIntent);
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getActivity().finish();
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} else {
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// Copy to clipboard
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copyToClipboard(result);
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}
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}
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}
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