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/*
* Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
* Copyright (C) 2010 Thialfihar <thi@thialfihar.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.sufficientlysecure.keychain.ui;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.view.PagerTabStrip;
import android.support.v4.view.ViewPager;
import android.widget.Toast;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.helper.ActionBarHelper;
import org.sufficientlysecure.keychain.helper.FileHelper;
import org.sufficientlysecure.keychain.pgp.PgpHelper;
import org.sufficientlysecure.keychain.ui.adapter.PagerTabStripAdapter;
import org.sufficientlysecure.keychain.util.Log;
import java.util.regex.Matcher;
public class DecryptActivity extends DrawerActivity {
/* Intents */
public static final String ACTION_DECRYPT = Constants.INTENT_PREFIX + "DECRYPT";
/* EXTRA keys for input */
public static final String EXTRA_TEXT = "text";
ViewPager mViewPager;
PagerTabStrip mPagerTabStrip;
PagerTabStripAdapter mTabsAdapter;
Bundle mMessageFragmentBundle = new Bundle();
Bundle mFileFragmentBundle = new Bundle();
int mSwitchToTab = PAGER_TAB_MESSAGE;
private static final int PAGER_TAB_MESSAGE = 0;
private static final int PAGER_TAB_FILE = 1;
private void initView() {
mViewPager = (ViewPager) findViewById(R.id.decrypt_pager);
mPagerTabStrip = (PagerTabStrip) findViewById(R.id.decrypt_pager_tab_strip);
mTabsAdapter = new PagerTabStripAdapter(this);
mViewPager.setAdapter(mTabsAdapter);
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.decrypt_activity);
// set actionbar without home button if called from another app
ActionBarHelper.setBackButton(this);
initView();
setupDrawerNavigation(savedInstanceState);
// Handle intent actions, maybe changes the bundles
handleActions(getIntent());
mTabsAdapter.addTab(DecryptMessageFragment.class,
mMessageFragmentBundle, getString(R.string.label_message));
mTabsAdapter.addTab(DecryptFileFragment.class,
mFileFragmentBundle, getString(R.string.label_file));
mViewPager.setCurrentItem(mSwitchToTab);
}
/**
* 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();
Uri uri = intent.getData();
if (extras == null) {
extras = new Bundle();
}
/*
* Android's Action
*/
if (Intent.ACTION_SEND.equals(action) && type != null) {
// When sending to Keychain Decrypt via share menu
if ("text/plain".equals(type)) {
// Plain text
String sharedText = intent.getStringExtra(Intent.EXTRA_TEXT);
if (sharedText != null) {
// handle like normal text decryption, override action and extras to later
// executeServiceMethod ACTION_DECRYPT in main actions
extras.putString(EXTRA_TEXT, sharedText);
action = ACTION_DECRYPT;
}
} else {
// Binary via content provider (could also be files)
// override uri to get stream from send
uri = (Uri) intent.getParcelableExtra(Intent.EXTRA_STREAM);
action = ACTION_DECRYPT;
}
} else if (Intent.ACTION_VIEW.equals(action)) {
// Android's Action when opening file associated to Keychain (see AndroidManifest.xml)
// override action
action = ACTION_DECRYPT;
}
String textData = extras.getString(EXTRA_TEXT);
/**
* Main Actions
*/
if (ACTION_DECRYPT.equals(action) && textData != null) {
Log.d(Constants.TAG, "textData not null, matching text ...");
Matcher matcher = PgpHelper.PGP_MESSAGE.matcher(textData);
if (matcher.matches()) {
Log.d(Constants.TAG, "PGP_MESSAGE matched");
textData = matcher.group(1);
// replace non breakable spaces
textData = textData.replaceAll("\\xa0", " ");
mMessageFragmentBundle.putString(DecryptMessageFragment.ARG_CIPHERTEXT, textData);
mSwitchToTab = PAGER_TAB_MESSAGE;
} else {
matcher = PgpHelper.PGP_CLEARTEXT_SIGNATURE.matcher(textData);
if (matcher.matches()) {
Log.d(Constants.TAG, "PGP_CLEARTEXT_SIGNATURE matched");
textData = matcher.group(1);
// replace non breakable spaces
textData = textData.replaceAll("\\xa0", " ");
mMessageFragmentBundle.putString(DecryptMessageFragment.ARG_CIPHERTEXT, textData);
mSwitchToTab = PAGER_TAB_MESSAGE;
} else {
Log.d(Constants.TAG, "Nothing matched!");
}
}
} else if (ACTION_DECRYPT.equals(action) && uri != null) {
// get file path from uri
String path = FileHelper.getPath(this, uri);
if (path != null) {
mFileFragmentBundle.putString(DecryptFileFragment.ARG_FILENAME, path);
mSwitchToTab = PAGER_TAB_FILE;
} else {
Log.e(Constants.TAG,
"Direct binary data without actual file in filesystem is not supported. " +
"Please use the Remote Service API!");
Toast.makeText(this, R.string.error_only_files_are_supported, Toast.LENGTH_LONG)
.show();
// end activity
finish();
}
} else {
Log.e(Constants.TAG,
"Include the extra 'text' or an Uri with setData() in your Intent!");
}
}
}
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