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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 java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.view.View;
import android.widget.Toast;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.intents.OpenKeychainIntents;
import org.sufficientlysecure.keychain.provider.TemporaryStorageProvider;
import org.sufficientlysecure.keychain.ui.base.BaseActivity;
public class DecryptActivity extends BaseActivity {
/* Intents */
public static final String ACTION_DECRYPT_DATA = OpenKeychainIntents.DECRYPT_DATA;
// TODO handle this intent
public static final String ACTION_DECRYPT_TEXT = OpenKeychainIntents.DECRYPT_TEXT;
// intern
public static final String ACTION_DECRYPT_DATA_OPEN = Constants.INTENT_PREFIX + "DECRYPT_DATA_OPEN";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setFullScreenDialogClose(new View.OnClickListener() {
@Override
public void onClick(View v) {
setResult(Activity.RESULT_CANCELED);
finish();
}
}, false);
// Handle intent actions
handleActions(savedInstanceState, getIntent());
}
@Override
protected void initLayout() {
setContentView(R.layout.decrypt_files_activity);
}
/**
* Handles all actions with this intent
*/
private void handleActions(Bundle savedInstanceState, Intent intent) {
// No need to initialize fragments if we are just being restored
if (savedInstanceState != null) {
return;
}
ArrayList<Uri> uris = new ArrayList<>();
String action = intent.getAction();
try {
// TODO handle ACTION_DECRYPT_FROM_CLIPBOARD
switch (action) {
case Intent.ACTION_SEND: {
// When sending to Keychain Decrypt via share menu
// Binary via content provider (could also be files)
// override uri to get stream from send
action = ACTION_DECRYPT_DATA;
if (intent.hasExtra(Intent.EXTRA_STREAM)) {
uris.add(intent.<Uri>getParcelableExtra(Intent.EXTRA_STREAM));
} else if (intent.hasExtra(Intent.EXTRA_TEXT)) {
String text = intent.getStringExtra(Intent.EXTRA_TEXT);
Uri uri = readToTempFile(text);
uris.add(uri);
}
break;
}
case Intent.ACTION_SEND_MULTIPLE: {
action = ACTION_DECRYPT_DATA;
if (intent.hasExtra(Intent.EXTRA_STREAM)) {
uris = intent.getParcelableArrayListExtra(Intent.EXTRA_STREAM);
} else if (intent.hasExtra(Intent.EXTRA_TEXT)) {
for (String text : intent.getStringArrayListExtra(Intent.EXTRA_TEXT)) {
Uri uri = readToTempFile(text);
uris.add(uri);
}
}
break;
}
case Intent.ACTION_VIEW:
// Android's Action when opening file associated to Keychain (see AndroidManifest.xml)
action = ACTION_DECRYPT_DATA;
// fallthrough
default:
uris.add(intent.getData());
}
} catch (IOException e) {
Toast.makeText(this, R.string.error_reading_text, Toast.LENGTH_LONG).show();
finish();
return;
}
if (ACTION_DECRYPT_DATA.equals(action)) {
// Definitely need a data uri with the decrypt_data intent
if (uris.isEmpty()) {
Toast.makeText(this, "No data to decrypt!", Toast.LENGTH_LONG).show();
setResult(Activity.RESULT_CANCELED);
finish();
}
displayListFragment(uris);
return;
}
boolean showOpenDialog = ACTION_DECRYPT_DATA_OPEN.equals(action);
displayInputFragment(showOpenDialog);
}
public Uri readToTempFile(String text) throws IOException {
Uri tempFile = TemporaryStorageProvider.createFile(this);
OutputStream outStream = getContentResolver().openOutputStream(tempFile);
outStream.write(text.getBytes());
outStream.close();
return tempFile;
}
public void displayInputFragment(boolean showOpenDialog) {
DecryptFilesInputFragment frag = DecryptFilesInputFragment.newInstance(showOpenDialog);
// Add the fragment to the 'fragment_container' FrameLayout
// NOTE: We use commitAllowingStateLoss() to prevent weird crashes!
getSupportFragmentManager().beginTransaction()
.replace(R.id.decrypt_files_fragment_container, frag)
.commit();
}
public void displayListFragment(ArrayList<Uri> inputUris) {
DecryptListFragment frag = DecryptListFragment.newInstance(inputUris);
FragmentManager fragMan = getSupportFragmentManager();
FragmentTransaction trans = fragMan.beginTransaction();
trans.replace(R.id.decrypt_files_fragment_container, frag);
// if there already is a fragment, allow going back to that. otherwise, we're top level!
if (fragMan.getFragments() != null && !fragMan.getFragments().isEmpty()) {
trans.addToBackStack("list");
}
trans.commit();
}
}
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