244 lines
9.4 KiB
Java
244 lines
9.4 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.app.ProgressDialog;
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import android.content.Intent;
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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.Message;
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import android.os.Messenger;
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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 android.widget.CheckBox;
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import android.widget.TextView;
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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.helper.FileHelper;
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import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyResult;
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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.ui.dialog.DeleteFileDialogFragment;
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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.io.File;
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public class DecryptFileFragment extends DecryptFragment {
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public static final String ARG_URI = "uri";
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public static final String ARG_FROM_VIEW_INTENT = "view_intent";
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private static final int REQUEST_CODE_INPUT = 0x00007003;
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private static final int REQUEST_CODE_OUTPUT = 0x00007007;
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// view
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private TextView mFilename;
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private CheckBox mDeleteAfter;
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private View mDecryptButton;
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// model
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private Uri mInputUri = null;
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private Uri mOutputUri = null;
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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.decrypt_file_fragment, container, false);
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mFilename = (TextView) view.findViewById(R.id.decrypt_file_filename);
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mDeleteAfter = (CheckBox) view.findViewById(R.id.decrypt_file_delete_after_decryption);
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mDecryptButton = view.findViewById(R.id.decrypt_file_action_decrypt);
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view.findViewById(R.id.decrypt_file_browse).setOnClickListener(new View.OnClickListener() {
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public void onClick(View v) {
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
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FileHelper.openDocument(DecryptFileFragment.this, "*/*", REQUEST_CODE_INPUT);
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} else {
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FileHelper.openFile(DecryptFileFragment.this, mInputUri, "*/*",
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REQUEST_CODE_INPUT);
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}
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}
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});
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mDecryptButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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decryptAction();
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}
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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 onActivityCreated(Bundle savedInstanceState) {
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super.onActivityCreated(savedInstanceState);
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setInputUri(getArguments().<Uri>getParcelable(ARG_URI));
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}
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private void setInputUri(Uri inputUri) {
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if (inputUri == null) {
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mInputUri = null;
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mFilename.setText("");
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return;
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}
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mInputUri = inputUri;
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mFilename.setText(FileHelper.getFilename(getActivity(), mInputUri));
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}
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private void decryptAction() {
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if (mInputUri == null) {
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Notify.showNotify(getActivity(), R.string.no_file_selected, Notify.Style.ERROR);
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return;
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}
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askForOutputFilename();
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}
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private String removeEncryptedAppend(String name) {
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if (name.endsWith(".asc") || name.endsWith(".gpg") || name.endsWith(".pgp")) {
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return name.substring(0, name.length() - 4);
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}
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return name;
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}
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private void askForOutputFilename() {
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String targetName = removeEncryptedAppend(FileHelper.getFilename(getActivity(), mInputUri));
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if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
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File file = new File(mInputUri.getPath());
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File parentDir = file.exists() ? file.getParentFile() : Constants.Path.APP_DIR;
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File targetFile = new File(parentDir, targetName);
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FileHelper.saveFile(this, getString(R.string.title_decrypt_to_file),
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getString(R.string.specify_file_to_decrypt_to), targetFile, REQUEST_CODE_OUTPUT);
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} else {
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FileHelper.saveDocument(this, "*/*", targetName, REQUEST_CODE_OUTPUT);
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}
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}
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@Override
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protected void decryptStart(String passphrase) {
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Log.d(Constants.TAG, "decryptStart");
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// Send all information needed to service to decrypt in other thread
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Intent intent = new Intent(getActivity(), KeychainIntentService.class);
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// fill values for this action
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Bundle data = new Bundle();
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intent.setAction(KeychainIntentService.ACTION_DECRYPT_VERIFY);
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// data
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Log.d(Constants.TAG, "mInputUri=" + mInputUri + ", mOutputUri=" + mOutputUri);
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data.putInt(KeychainIntentService.SOURCE, KeychainIntentService.IO_URI);
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data.putParcelable(KeychainIntentService.ENCRYPT_INPUT_URI, mInputUri);
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data.putInt(KeychainIntentService.TARGET, KeychainIntentService.IO_URI);
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data.putParcelable(KeychainIntentService.ENCRYPT_OUTPUT_URI, mOutputUri);
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data.putString(KeychainIntentService.DECRYPT_PASSPHRASE, passphrase);
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intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
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// Message is received after encrypting is done in KeychainIntentService
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KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(getActivity(),
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getString(R.string.progress_decrypting), 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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// get returned data bundle
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Bundle returnData = message.getData();
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PgpDecryptVerifyResult decryptVerifyResult =
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returnData.getParcelable(KeychainIntentService.RESULT_DECRYPT_VERIFY_RESULT);
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if (PgpDecryptVerifyResult.KEY_PASSHRASE_NEEDED == decryptVerifyResult.getStatus()) {
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showPassphraseDialog(decryptVerifyResult.getKeyIdPassphraseNeeded());
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} else if (PgpDecryptVerifyResult.SYMMETRIC_PASSHRASE_NEEDED ==
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decryptVerifyResult.getStatus()) {
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showPassphraseDialog(Constants.key.symmetric);
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} else {
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// display signature result in activity
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onResult(decryptVerifyResult);
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if (mDeleteAfter.isChecked()) {
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// Create and show dialog to delete original file
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DeleteFileDialogFragment deleteFileDialog = DeleteFileDialogFragment.newInstance(mInputUri);
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deleteFileDialog.show(getActivity().getSupportFragmentManager(), "deleteDialog");
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setInputUri(null);
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}
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/*
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// A future open after decryption feature
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if () {
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Intent viewFile = new Intent(Intent.ACTION_VIEW);
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viewFile.setData(mOutputUri);
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startActivity(viewFile);
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}
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*/
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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(saveHandler);
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intent.putExtra(KeychainIntentService.EXTRA_MESSENGER, messenger);
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// show progress dialog
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saveHandler.showProgressDialog(getActivity());
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// start service with intent
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getActivity().startService(intent);
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}
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@Override
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public void onActivityResult(int requestCode, int resultCode, Intent data) {
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switch (requestCode) {
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case REQUEST_CODE_INPUT: {
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if (resultCode == Activity.RESULT_OK && data != null) {
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setInputUri(data.getData());
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}
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return;
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}
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case REQUEST_CODE_OUTPUT: {
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// This happens after output file was selected, so start our operation
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if (resultCode == Activity.RESULT_OK && data != null) {
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mOutputUri = data.getData();
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decryptStart(null);
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}
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return;
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}
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default: {
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super.onActivityResult(requestCode, resultCode, data);
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break;
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}
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}
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}
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}
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