634 lines
24 KiB
Java
634 lines
24 KiB
Java
/*
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* Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
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* Copyright (C) 2010-2014 Thialfihar <thi@thialfihar.org>
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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.ProgressDialog;
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import android.content.Intent;
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import android.content.pm.LabeledIntent;
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import android.content.pm.ResolveInfo;
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import android.net.Uri;
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import android.os.Build;
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import android.os.Bundle;
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import android.os.Handler;
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import android.os.Message;
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import android.os.Messenger;
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import android.os.Parcelable;
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import android.support.v4.app.Fragment;
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import android.support.v4.view.PagerTabStrip;
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import android.support.v4.view.ViewPager;
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import android.view.Menu;
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import android.view.MenuItem;
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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.compatibility.ClipboardReflection;
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import org.sufficientlysecure.keychain.helper.Preferences;
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import org.sufficientlysecure.keychain.pgp.KeyRing;
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import org.sufficientlysecure.keychain.service.KeychainIntentService;
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import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
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import org.sufficientlysecure.keychain.service.PassphraseCacheService;
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import org.sufficientlysecure.keychain.ui.adapter.PagerTabStripAdapter;
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import org.sufficientlysecure.keychain.ui.dialog.DeleteFileDialogFragment;
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import org.sufficientlysecure.keychain.ui.dialog.PassphraseDialogFragment;
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import org.sufficientlysecure.keychain.util.Log;
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import org.sufficientlysecure.keychain.util.Notify;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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public class EncryptActivity extends DrawerActivity implements EncryptActivityInterface {
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/* Intents */
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public static final String ACTION_ENCRYPT = Constants.INTENT_PREFIX + "ENCRYPT";
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/* EXTRA keys for input */
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public static final String EXTRA_TEXT = "text";
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// enables ASCII Armor for file encryption when uri is given
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public static final String EXTRA_ASCII_ARMOR = "ascii_armor";
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// preselect ids, for internal use
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public static final String EXTRA_SIGNATURE_KEY_ID = "signature_key_id";
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public static final String EXTRA_ENCRYPTION_KEY_IDS = "encryption_key_ids";
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// view
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ViewPager mViewPagerMode;
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//PagerTabStrip mPagerTabStripMode;
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PagerTabStripAdapter mTabsAdapterMode;
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ViewPager mViewPagerContent;
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PagerTabStrip mPagerTabStripContent;
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PagerTabStripAdapter mTabsAdapterContent;
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// tabs
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Bundle mAsymmetricFragmentBundle = new Bundle();
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Bundle mSymmetricFragmentBundle = new Bundle();
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Bundle mMessageFragmentBundle = new Bundle();
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Bundle mFileFragmentBundle = new Bundle();
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int mSwitchToMode = PAGER_MODE_ASYMMETRIC;
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int mSwitchToContent = PAGER_CONTENT_MESSAGE;
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private static final int PAGER_MODE_ASYMMETRIC = 0;
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private static final int PAGER_MODE_SYMMETRIC = 1;
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private static final int PAGER_CONTENT_MESSAGE = 0;
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private static final int PAGER_CONTENT_FILE = 1;
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// model used by message and file fragments
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private long mEncryptionKeyIds[] = null;
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private String mEncryptionUserIds[] = null;
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private long mSigningKeyId = Constants.key.none;
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private String mPassphrase = "";
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private boolean mUseArmor;
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private boolean mDeleteAfterEncrypt = false;
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private boolean mShareAfterEncrypt = false;
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private ArrayList<Uri> mInputUris;
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private ArrayList<Uri> mOutputUris;
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private String mMessage = "";
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public boolean isModeSymmetric() {
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return PAGER_MODE_SYMMETRIC == mViewPagerMode.getCurrentItem();
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}
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public boolean isContentMessage() {
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return PAGER_CONTENT_MESSAGE == mViewPagerContent.getCurrentItem();
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}
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@Override
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public boolean isUseArmor() {
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return mUseArmor;
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}
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@Override
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public long getSignatureKey() {
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return mSigningKeyId;
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}
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@Override
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public long[] getEncryptionKeys() {
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return mEncryptionKeyIds;
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}
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@Override
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public String[] getEncryptionUsers() {
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return mEncryptionUserIds;
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}
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@Override
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public void setSignatureKey(long signatureKey) {
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mSigningKeyId = signatureKey;
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notifyUpdate();
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}
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@Override
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public void setEncryptionKeys(long[] encryptionKeys) {
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mEncryptionKeyIds = encryptionKeys;
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notifyUpdate();
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}
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@Override
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public void setEncryptionUsers(String[] encryptionUsers) {
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mEncryptionUserIds = encryptionUsers;
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notifyUpdate();
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}
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@Override
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public void setPassphrase(String passphrase) {
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mPassphrase = passphrase;
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}
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@Override
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public ArrayList<Uri> getInputUris() {
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if (mInputUris == null) mInputUris = new ArrayList<Uri>();
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return mInputUris;
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}
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@Override
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public ArrayList<Uri> getOutputUris() {
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if (mOutputUris == null) mOutputUris = new ArrayList<Uri>();
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return mOutputUris;
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}
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@Override
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public void setInputUris(ArrayList<Uri> uris) {
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mInputUris = uris;
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notifyUpdate();
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}
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@Override
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public void setOutputUris(ArrayList<Uri> uris) {
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mOutputUris = uris;
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notifyUpdate();
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}
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@Override
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public String getMessage() {
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return mMessage;
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}
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@Override
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public void setMessage(String message) {
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mMessage = message;
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}
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@Override
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public void notifyUpdate() {
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for (Fragment fragment : getSupportFragmentManager().getFragments()) {
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if (fragment instanceof EncryptActivityInterface.UpdateListener) {
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((UpdateListener) fragment).onNotifyUpdate();
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}
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}
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}
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@Override
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public void startEncrypt(boolean share) {
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mShareAfterEncrypt = share;
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startEncrypt();
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}
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public void startEncrypt() {
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if (!inputIsValid()) {
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// Notify was created by inputIsValid.
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return;
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}
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// Send all information needed to service to edit key in other thread
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Intent intent = new Intent(this, KeychainIntentService.class);
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intent.setAction(KeychainIntentService.ACTION_ENCRYPT_SIGN);
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intent.putExtra(KeychainIntentService.EXTRA_DATA, createEncryptBundle());
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// Message is received after encrypting is done in KeychainIntentService
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KeychainIntentServiceHandler serviceHandler = new KeychainIntentServiceHandler(this,
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getString(R.string.progress_encrypting), ProgressDialog.STYLE_HORIZONTAL) {
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public void handleMessage(Message message) {
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// handle messages by standard KeychainIntentServiceHandler first
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super.handleMessage(message);
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if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
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if (!isContentMessage()) {
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Notify.showNotify(EncryptActivity.this, R.string.encrypt_sign_successful, Notify.Style.INFO);
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if (mDeleteAfterEncrypt) {
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for (Uri inputUri : mInputUris) {
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DeleteFileDialogFragment deleteFileDialog = DeleteFileDialogFragment.newInstance(inputUri);
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deleteFileDialog.show(getSupportFragmentManager(), "deleteDialog");
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}
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mInputUris.clear();
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notifyUpdate();
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}
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}
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if (mShareAfterEncrypt) {
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// Share encrypted message/file
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startActivity(sendWithChooserExcludingEncrypt(message));
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} else if (isContentMessage()) {
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// Copy to clipboard
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copyToClipboard(message);
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Notify.showNotify(EncryptActivity.this,
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R.string.encrypt_sign_clipboard_successful, Notify.Style.INFO);
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}
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}
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}
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};
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// Create a new Messenger for the communication back
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Messenger messenger = new Messenger(serviceHandler);
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intent.putExtra(KeychainIntentService.EXTRA_MESSENGER, messenger);
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// show progress dialog
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serviceHandler.showProgressDialog(this);
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// start service with intent
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startService(intent);
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}
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private Bundle createEncryptBundle() {
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// fill values for this action
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Bundle data = new Bundle();
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if (isContentMessage()) {
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data.putInt(KeychainIntentService.TARGET, KeychainIntentService.IO_BYTES);
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data.putByteArray(KeychainIntentService.ENCRYPT_MESSAGE_BYTES, mMessage.getBytes());
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} else {
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data.putInt(KeychainIntentService.SOURCE, KeychainIntentService.IO_URIS);
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data.putParcelableArrayList(KeychainIntentService.ENCRYPT_INPUT_URIS, mInputUris);
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data.putInt(KeychainIntentService.TARGET, KeychainIntentService.IO_URIS);
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data.putParcelableArrayList(KeychainIntentService.ENCRYPT_OUTPUT_URIS, mOutputUris);
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}
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// Always use armor for messages
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data.putBoolean(KeychainIntentService.ENCRYPT_USE_ASCII_ARMOR, mUseArmor || isContentMessage());
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// TODO: Only default compression right now...
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int compressionId = Preferences.getPreferences(this).getDefaultMessageCompression();
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data.putInt(KeychainIntentService.ENCRYPT_COMPRESSION_ID, compressionId);
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if (isModeSymmetric()) {
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Log.d(Constants.TAG, "Symmetric encryption enabled!");
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String passphrase = mPassphrase;
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if (passphrase.length() == 0) {
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passphrase = null;
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}
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data.putString(KeychainIntentService.ENCRYPT_SYMMETRIC_PASSPHRASE, passphrase);
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} else {
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data.putLong(KeychainIntentService.ENCRYPT_SIGNATURE_KEY_ID, mSigningKeyId);
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data.putLongArray(KeychainIntentService.ENCRYPT_ENCRYPTION_KEYS_IDS, mEncryptionKeyIds);
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}
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return data;
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}
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private void copyToClipboard(Message message) {
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ClipboardReflection.copyToClipboard(this, new String(message.getData().getByteArray(KeychainIntentService.RESULT_BYTES)));
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}
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/**
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* Create Intent Chooser but exclude OK's EncryptActivity.
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* <p/>
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* Put together from some stackoverflow posts...
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*
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* @param message
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* @return
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*/
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private Intent sendWithChooserExcludingEncrypt(Message message) {
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Intent prototype = createSendIntent(message);
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String title = isContentMessage() ? getString(R.string.title_share_message)
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: getString(R.string.title_share_file);
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// fallback on Android 2.3, otherwise we would get weird results
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if (Build.VERSION.SDK_INT < Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
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return Intent.createChooser(prototype, title);
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}
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// prevent recursion aka Inception :P
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String[] blacklist = new String[]{Constants.PACKAGE_NAME + ".ui.EncryptActivity"};
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List<LabeledIntent> targetedShareIntents = new ArrayList<LabeledIntent>();
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List<ResolveInfo> resInfoList = getPackageManager().queryIntentActivities(prototype, 0);
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List<ResolveInfo> resInfoListFiltered = new ArrayList<ResolveInfo>();
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if (!resInfoList.isEmpty()) {
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for (ResolveInfo resolveInfo : resInfoList) {
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// do not add blacklisted ones
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if (resolveInfo.activityInfo == null || Arrays.asList(blacklist).contains(resolveInfo.activityInfo.name))
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continue;
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resInfoListFiltered.add(resolveInfo);
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}
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if (!resInfoListFiltered.isEmpty()) {
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// sorting for nice readability
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Collections.sort(resInfoListFiltered, new Comparator<ResolveInfo>() {
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@Override
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public int compare(ResolveInfo first, ResolveInfo second) {
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String firstName = first.loadLabel(getPackageManager()).toString();
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String secondName = second.loadLabel(getPackageManager()).toString();
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return firstName.compareToIgnoreCase(secondName);
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}
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});
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// create the custom intent list
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for (ResolveInfo resolveInfo : resInfoListFiltered) {
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Intent targetedShareIntent = (Intent) prototype.clone();
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targetedShareIntent.setPackage(resolveInfo.activityInfo.packageName);
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targetedShareIntent.setClassName(resolveInfo.activityInfo.packageName, resolveInfo.activityInfo.name);
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LabeledIntent lIntent = new LabeledIntent(targetedShareIntent,
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resolveInfo.activityInfo.packageName,
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resolveInfo.loadLabel(getPackageManager()),
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resolveInfo.activityInfo.icon);
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targetedShareIntents.add(lIntent);
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}
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// Create chooser with only one Intent in it
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Intent chooserIntent = Intent.createChooser(targetedShareIntents.remove(targetedShareIntents.size() - 1), title);
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// append all other Intents
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chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, targetedShareIntents.toArray(new Parcelable[]{}));
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return chooserIntent;
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}
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}
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// fallback to Android's default chooser
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return Intent.createChooser(prototype, title);
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}
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private Intent createSendIntent(Message message) {
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Intent sendIntent;
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if (isContentMessage()) {
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sendIntent = new Intent(Intent.ACTION_SEND);
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sendIntent.setType("text/plain");
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sendIntent.putExtra(Intent.EXTRA_TEXT, new String(message.getData().getByteArray(KeychainIntentService.RESULT_BYTES)));
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} else {
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// file
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if (mOutputUris.size() == 1) {
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sendIntent = new Intent(Intent.ACTION_SEND);
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sendIntent.putExtra(Intent.EXTRA_STREAM, mOutputUris.get(0));
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} else {
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sendIntent = new Intent(Intent.ACTION_SEND_MULTIPLE);
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sendIntent.putExtra(Intent.EXTRA_STREAM, mOutputUris);
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}
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sendIntent.setType("application/pgp-encrypted");
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}
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if (!isModeSymmetric() && mEncryptionUserIds != null) {
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Set<String> users = new HashSet<String>();
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for (String user : mEncryptionUserIds) {
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String[] userId = KeyRing.splitUserId(user);
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if (userId[1] != null) {
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users.add(userId[1]);
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}
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}
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sendIntent.putExtra(Intent.EXTRA_EMAIL, users.toArray(new String[users.size()]));
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}
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return sendIntent;
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}
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private boolean inputIsValid() {
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if (isContentMessage()) {
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if (mMessage == null) {
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Notify.showNotify(this, R.string.error_message, Notify.Style.ERROR);
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return false;
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}
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} else {
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// file checks
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if (mInputUris.isEmpty()) {
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Notify.showNotify(this, R.string.no_file_selected, Notify.Style.ERROR);
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return false;
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} else if (mInputUris.size() > 1 && !mShareAfterEncrypt) {
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// This should be impossible...
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return false;
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} else if (mInputUris.size() != mOutputUris.size()) {
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// This as well
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return false;
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}
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}
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if (isModeSymmetric()) {
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// symmetric encryption checks
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if (mPassphrase == null) {
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Notify.showNotify(this, R.string.passphrases_do_not_match, Notify.Style.ERROR);
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return false;
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}
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if (mPassphrase.isEmpty()) {
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Notify.showNotify(this, R.string.passphrase_must_not_be_empty, Notify.Style.ERROR);
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return false;
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}
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} else {
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// asymmetric encryption checks
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boolean gotEncryptionKeys = (mEncryptionKeyIds != null
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&& mEncryptionKeyIds.length > 0);
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// Files must be encrypted, only text can be signed-only right now
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if (!gotEncryptionKeys && !isContentMessage()) {
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Notify.showNotify(this, R.string.select_encryption_key, Notify.Style.ERROR);
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return false;
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}
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if (!gotEncryptionKeys && mSigningKeyId == 0) {
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Notify.showNotify(this, R.string.select_encryption_or_signature_key, Notify.Style.ERROR);
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return false;
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}
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if (mSigningKeyId != 0 && PassphraseCacheService.getCachedPassphrase(this, mSigningKeyId) == null) {
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PassphraseDialogFragment.show(this, mSigningKeyId,
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new Handler() {
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@Override
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public void handleMessage(Message message) {
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if (message.what == PassphraseDialogFragment.MESSAGE_OKAY) {
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// restart
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startEncrypt();
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}
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}
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}
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);
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return false;
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}
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}
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return true;
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}
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private void initView() {
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mViewPagerMode = (ViewPager) findViewById(R.id.encrypt_pager_mode);
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//mPagerTabStripMode = (PagerTabStrip) findViewById(R.id.encrypt_pager_tab_strip_mode);
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mViewPagerContent = (ViewPager) findViewById(R.id.encrypt_pager_content);
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mPagerTabStripContent = (PagerTabStrip) findViewById(R.id.encrypt_pager_tab_strip_content);
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mTabsAdapterMode = new PagerTabStripAdapter(this);
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mViewPagerMode.setAdapter(mTabsAdapterMode);
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mTabsAdapterContent = new PagerTabStripAdapter(this);
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mViewPagerContent.setAdapter(mTabsAdapterContent);
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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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setContentView(R.layout.encrypt_activity);
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initView();
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// if called with an intent action, do not init drawer navigation
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if (ACTION_ENCRYPT.equals(getIntent().getAction())) {
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// TODO: back button to key?
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} else {
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setupDrawerNavigation(savedInstanceState);
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}
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// Handle intent actions
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handleActions(getIntent());
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mTabsAdapterMode.addTab(EncryptAsymmetricFragment.class,
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mAsymmetricFragmentBundle, getString(R.string.label_asymmetric));
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mTabsAdapterMode.addTab(EncryptSymmetricFragment.class,
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mSymmetricFragmentBundle, getString(R.string.label_symmetric));
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mViewPagerMode.setCurrentItem(mSwitchToMode);
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mTabsAdapterContent.addTab(EncryptMessageFragment.class,
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mMessageFragmentBundle, getString(R.string.label_message));
|
|
mTabsAdapterContent.addTab(EncryptFileFragment.class,
|
|
mFileFragmentBundle, getString(R.string.label_files));
|
|
mViewPagerContent.setCurrentItem(mSwitchToContent);
|
|
|
|
mUseArmor = Preferences.getPreferences(this).getDefaultAsciiArmor();
|
|
}
|
|
|
|
@Override
|
|
public boolean onCreateOptionsMenu(Menu menu) {
|
|
getMenuInflater().inflate(R.menu.encrypt_activity, menu);
|
|
menu.findItem(R.id.check_use_armor).setChecked(mUseArmor);
|
|
return super.onCreateOptionsMenu(menu);
|
|
}
|
|
|
|
@Override
|
|
public boolean onOptionsItemSelected(MenuItem item) {
|
|
if (item.isCheckable()) {
|
|
item.setChecked(!item.isChecked());
|
|
}
|
|
switch (item.getItemId()) {
|
|
case R.id.check_use_symmetric:
|
|
mSwitchToMode = item.isChecked() ? PAGER_MODE_SYMMETRIC : PAGER_MODE_ASYMMETRIC;
|
|
|
|
mViewPagerMode.setCurrentItem(mSwitchToMode);
|
|
notifyUpdate();
|
|
break;
|
|
case R.id.check_use_armor:
|
|
mUseArmor = item.isChecked();
|
|
notifyUpdate();
|
|
break;
|
|
case R.id.check_delete_after_encrypt:
|
|
mDeleteAfterEncrypt = item.isChecked();
|
|
notifyUpdate();
|
|
break;
|
|
default:
|
|
return super.onOptionsItemSelected(item);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Handles all actions with this intent
|
|
*
|
|
* @param intent
|
|
*/
|
|
private void handleActions(Intent intent) {
|
|
String action = intent.getAction();
|
|
Bundle extras = intent.getExtras();
|
|
String type = intent.getType();
|
|
ArrayList<Uri> uris = new ArrayList<Uri>();
|
|
|
|
if (extras == null) {
|
|
extras = new Bundle();
|
|
}
|
|
|
|
if (intent.getData() != null) {
|
|
uris.add(intent.getData());
|
|
}
|
|
|
|
/*
|
|
* Android's Action
|
|
*/
|
|
if (Intent.ACTION_SEND.equals(action) && type != null) {
|
|
// When sending to OpenKeychain Encrypt via share menu
|
|
if ("text/plain".equals(type)) {
|
|
// Plain text
|
|
String sharedText = intent.getStringExtra(Intent.EXTRA_TEXT);
|
|
if (sharedText != null) {
|
|
// handle like normal text encryption, override action and extras to later
|
|
// executeServiceMethod ACTION_ENCRYPT in main actions
|
|
extras.putString(EXTRA_TEXT, sharedText);
|
|
extras.putBoolean(EXTRA_ASCII_ARMOR, true);
|
|
action = ACTION_ENCRYPT;
|
|
}
|
|
} else {
|
|
// Files via content provider, override uri and action
|
|
uris.clear();
|
|
uris.add(intent.<Uri>getParcelableExtra(Intent.EXTRA_STREAM));
|
|
action = ACTION_ENCRYPT;
|
|
}
|
|
}
|
|
|
|
if (Intent.ACTION_SEND_MULTIPLE.equals(action) && type != null) {
|
|
uris = intent.getParcelableArrayListExtra(Intent.EXTRA_STREAM);
|
|
action = ACTION_ENCRYPT;
|
|
}
|
|
|
|
if (extras.containsKey(EXTRA_ASCII_ARMOR)) {
|
|
mUseArmor = extras.getBoolean(EXTRA_ASCII_ARMOR, true);
|
|
}
|
|
|
|
String textData = extras.getString(EXTRA_TEXT);
|
|
|
|
long signatureKeyId = extras.getLong(EXTRA_SIGNATURE_KEY_ID);
|
|
long[] encryptionKeyIds = extras.getLongArray(EXTRA_ENCRYPTION_KEY_IDS);
|
|
|
|
// preselect keys given by intent
|
|
mAsymmetricFragmentBundle.putLongArray(EncryptAsymmetricFragment.ARG_ENCRYPTION_KEY_IDS,
|
|
encryptionKeyIds);
|
|
mAsymmetricFragmentBundle.putLong(EncryptAsymmetricFragment.ARG_SIGNATURE_KEY_ID,
|
|
signatureKeyId);
|
|
mSwitchToMode = PAGER_MODE_ASYMMETRIC;
|
|
|
|
/**
|
|
* Main Actions
|
|
*/
|
|
if (ACTION_ENCRYPT.equals(action) && textData != null) {
|
|
// encrypt text based on given extra
|
|
mMessageFragmentBundle.putString(EncryptMessageFragment.ARG_TEXT, textData);
|
|
mSwitchToContent = PAGER_CONTENT_MESSAGE;
|
|
} else if (ACTION_ENCRYPT.equals(action) && uris != null && !uris.isEmpty()) {
|
|
// encrypt file based on Uri
|
|
mFileFragmentBundle.putParcelableArrayList(EncryptFileFragment.ARG_URIS, uris);
|
|
mSwitchToContent = PAGER_CONTENT_FILE;
|
|
} else if (ACTION_ENCRYPT.equals(action)) {
|
|
Log.e(Constants.TAG,
|
|
"Include the extra 'text' or an Uri with setData() in your Intent!");
|
|
}
|
|
}
|
|
|
|
}
|