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/*
* Copyright (C) 2014 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.annotation.SuppressLint;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Message;
import android.os.Messenger;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.operations.results.DecryptVerifyResult;
import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyInputParcel;
import org.sufficientlysecure.keychain.service.KeychainIntentService;
import org.sufficientlysecure.keychain.service.ServiceProgressHandler;
import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
import org.sufficientlysecure.keychain.ui.base.CryptoOperationFragment;
import org.sufficientlysecure.keychain.ui.dialog.ProgressDialogFragment;
import org.sufficientlysecure.keychain.ui.util.Notify;
import org.sufficientlysecure.keychain.util.FileHelper;
import org.sufficientlysecure.keychain.util.Log;
public class DecryptFilesInputFragment extends CryptoOperationFragment {
public static final String ARG_URI = "uri";
public static final String ARG_OPEN_DIRECTLY = "open_directly";
private static final int REQUEST_CODE_INPUT = 0x00007003;
// view
private TextView mFilename;
private View mDecryptButton;
// model
private Uri mInputUri = null;
private Uri mOutputUri = null;
public static DecryptFilesInputFragment newInstance(Uri uri, boolean openDirectly) {
DecryptFilesInputFragment frag = new DecryptFilesInputFragment();
Bundle args = new Bundle();
args.putParcelable(ARG_URI, uri);
args.putBoolean(ARG_OPEN_DIRECTLY, openDirectly);
frag.setArguments(args);
return frag;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.decrypt_files_input_fragment, container, false);
// hide result view for this fragment
getActivity().findViewById(R.id.result_main_layout).setVisibility(View.GONE);
mFilename = (TextView) view.findViewById(R.id.decrypt_files_filename);
mDecryptButton = view.findViewById(R.id.decrypt_files_action_decrypt);
view.findViewById(R.id.decrypt_files_browse).setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
FileHelper.openDocument(DecryptFilesInputFragment.this, "*/*", REQUEST_CODE_INPUT);
} else {
FileHelper.openFile(DecryptFilesInputFragment.this, mInputUri, "*/*",
REQUEST_CODE_INPUT);
}
}
});
mDecryptButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
decryptAction();
}
});
return view;
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putParcelable(ARG_URI, mInputUri);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
Bundle state = savedInstanceState != null ? savedInstanceState : getArguments();
setInputUri(state.<Uri>getParcelable(ARG_URI));
// should only come from args
if (state.getBoolean(ARG_OPEN_DIRECTLY, false)) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
FileHelper.openDocument(DecryptFilesInputFragment.this, "*/*", REQUEST_CODE_INPUT);
} else {
FileHelper.openFile(DecryptFilesInputFragment.this, mInputUri, "*/*", REQUEST_CODE_INPUT);
}
}
}
private void setInputUri(Uri inputUri) {
if (inputUri == null) {
mInputUri = null;
mFilename.setText("");
return;
}
mInputUri = inputUri;
mFilename.setText(FileHelper.getFilename(getActivity(), mInputUri));
}
private void decryptAction() {
if (mInputUri == null) {
Notify.create(getActivity(), R.string.no_file_selected, Notify.Style.ERROR).show();
return;
}
cryptoOperation(new CryptoInputParcel());
}
@Override
@SuppressLint("HandlerLeak")
protected void cryptoOperation(CryptoInputParcel cryptoInput) {
// Send all information needed to service to decrypt in other thread
Intent intent = new Intent(getActivity(), KeychainIntentService.class);
// fill values for this action
Bundle data = new Bundle();
// use current operation, either decrypt metadata or decrypt payload
intent.setAction(KeychainIntentService.ACTION_DECRYPT_METADATA);
// data
Log.d(Constants.TAG, "mInputUri=" + mInputUri + ", mOutputUri=" + mOutputUri);
PgpDecryptVerifyInputParcel input = new PgpDecryptVerifyInputParcel(mInputUri, mOutputUri)
.setAllowSymmetricDecryption(true);
data.putParcelable(KeychainIntentService.DECRYPT_VERIFY_PARCEL, input);
data.putParcelable(KeychainIntentService.EXTRA_CRYPTO_INPUT, cryptoInput);
intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
// Message is received after decrypting is done in KeychainIntentService
ServiceProgressHandler saveHandler = new ServiceProgressHandler(
getActivity(),
getString(R.string.progress_decrypting),
ProgressDialog.STYLE_HORIZONTAL,
ProgressDialogFragment.ServiceType.KEYCHAIN_INTENT) {
@Override
public void handleMessage(Message message) {
// handle messages by standard KeychainIntentServiceHandler first
super.handleMessage(message);
// handle pending messages
if (handlePendingMessage(message)) {
return;
}
if (message.arg1 == MessageStatus.OKAY.ordinal()) {
// get returned data bundle
Bundle returnData = message.getData();
DecryptVerifyResult result =
returnData.getParcelable(DecryptVerifyResult.EXTRA_RESULT);
DecryptFilesActivity activity = ((DecryptFilesActivity) getActivity());
if (activity == null) {
// nothing we can do
return;
}
if (result.success()) {
activity.displayListFragment(mInputUri, result);
return;
}
result.createNotify(activity).show(DecryptFilesInputFragment.this);
}
}
};
// Create a new Messenger for the communication back
Messenger messenger = new Messenger(saveHandler);
intent.putExtra(KeychainIntentService.EXTRA_MESSENGER, messenger);
// show progress dialog
saveHandler.showProgressDialog(getActivity());
// start service with intent
getActivity().startService(intent);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode != REQUEST_CODE_INPUT) {
return;
}
if (resultCode == Activity.RESULT_OK && data != null) {
setInputUri(data.getData());
}
}
}
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