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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.app.ProgressDialog;
import android.content.Intent;
import android.graphics.PorterDuff;
import android.net.Uri;
import android.os.Bundle;
import android.os.Message;
import android.os.Messenger;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.Loader;
import android.support.v4.util.LongSparseArray;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.widget.ImageView;
import com.google.zxing.integration.android.IntentIntegrator;
import com.google.zxing.integration.android.IntentResult;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.keyimport.ImportKeysListEntry;
import org.sufficientlysecure.keychain.keyimport.ParcelableKeyRing;
import org.sufficientlysecure.keychain.provider.KeychainContract;
import org.sufficientlysecure.keychain.provider.ProviderHelper;
import org.sufficientlysecure.keychain.service.KeychainIntentService;
import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
import org.sufficientlysecure.keychain.service.results.GetKeyResult;
import org.sufficientlysecure.keychain.service.results.ImportKeyResult;
import org.sufficientlysecure.keychain.service.results.OperationResult;
import org.sufficientlysecure.keychain.ui.adapter.AsyncTaskResultWrapper;
import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListLoader;
import org.sufficientlysecure.keychain.ui.util.Notify;
import org.sufficientlysecure.keychain.ui.widget.ExchangeKeySpinner;
import org.sufficientlysecure.keychain.ui.widget.KeySpinner;
import org.sufficientlysecure.keychain.util.InputData;
import org.sufficientlysecure.keychain.util.IntentIntegratorSupportV4;
import org.sufficientlysecure.keychain.util.Log;
import org.sufficientlysecure.keychain.util.ParcelableFileCache;
import org.sufficientlysecure.keychain.util.Preferences;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Locale;
import edu.cmu.cylab.starslinger.exchange.ExchangeActivity;
import edu.cmu.cylab.starslinger.exchange.ExchangeConfig;
public class AddKeysActivity extends ActionBarActivity implements
LoaderManager.LoaderCallbacks<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> {
ExchangeKeySpinner mSafeSlingerKeySpinner;
View mActionSafeSlinger;
ImageView mActionSafeSlingerIcon;
View mActionQrCode;
View mActionNfc;
View mActionSearchCloud;
ProviderHelper mProviderHelper;
long mExchangeMasterKeyId = Constants.key.none;
byte[] mImportBytes;
private static final int REQUEST_CODE_SAFE_SLINGER = 1;
private static final int LOADER_ID_BYTES = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mProviderHelper = new ProviderHelper(this);
setContentView(R.layout.add_keys_activity);
mSafeSlingerKeySpinner = (ExchangeKeySpinner) findViewById(R.id.add_keys_safeslinger_key_spinner);
mActionSafeSlinger = findViewById(R.id.add_keys_safeslinger);
mActionSafeSlingerIcon = (ImageView) findViewById(R.id.add_keys_safeslinger_icon);
// make certify image gray, like action icons
mActionSafeSlingerIcon.setColorFilter(getResources().getColor(R.color.tertiary_text_light),
PorterDuff.Mode.SRC_IN);
mActionQrCode = findViewById(R.id.add_keys_qr_code);
mActionNfc = findViewById(R.id.add_keys_nfc);
mActionSearchCloud = findViewById(R.id.add_keys_search_cloud);
mSafeSlingerKeySpinner.setOnKeyChangedListener(new KeySpinner.OnKeyChangedListener() {
@Override
public void onKeyChanged(long masterKeyId) {
mExchangeMasterKeyId = masterKeyId;
}
});
mActionSafeSlinger.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startExchange();
}
});
mActionQrCode.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startQrCode();
}
});
mActionNfc.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// show nfc help
Intent intent = new Intent(AddKeysActivity.this, HelpActivity.class);
intent.putExtra(HelpActivity.EXTRA_SELECTED_TAB, HelpActivity.TAB_NFC);
startActivityForResult(intent, 0);
}
});
mActionSearchCloud.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
searchCloud();
}
});
}
private void startExchange() {
if (mExchangeMasterKeyId == 0) {
Notify.showNotify(this, getString(R.string.select_key_for_exchange),
Notify.Style.ERROR);
} else {
// retrieve public key blob and start SafeSlinger
Uri uri = KeychainContract.KeyRingData.buildPublicKeyRingUri(mExchangeMasterKeyId);
try {
byte[] keyBlob = (byte[]) mProviderHelper.getGenericData(
uri, KeychainContract.KeyRingData.KEY_RING_DATA, ProviderHelper.FIELD_TYPE_BLOB);
Intent slingerIntent = new Intent(this, ExchangeActivity.class);
slingerIntent.putExtra(ExchangeConfig.extra.USER_DATA, keyBlob);
slingerIntent.putExtra(ExchangeConfig.extra.HOST_NAME, Constants.SAFESLINGER_SERVER);
startActivityForResult(slingerIntent, REQUEST_CODE_SAFE_SLINGER);
} catch (ProviderHelper.NotFoundException e) {
Log.e(Constants.TAG, "personal key not found", e);
}
}
}
private void startQrCode() {
// scan using xzing's Barcode Scanner
new IntentIntegrator(this).initiateScan();
}
private void searchCloud() {
finish();
Intent importIntent = new Intent(this, ImportKeysActivity.class);
startActivity(importIntent);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// if a result has been returned, display a notify
if (data != null && data.hasExtra(OperationResult.EXTRA_RESULT)) {
OperationResult result = data.getParcelableExtra(OperationResult.EXTRA_RESULT);
result.createNotify(this).show();
} else {
switch (requestCode) {
case REQUEST_CODE_SAFE_SLINGER: {
switch (resultCode) {
case ExchangeActivity.RESULT_EXCHANGE_OK:
// import exchanged keys
mImportBytes = getSlingedKeys(data);
getSupportLoaderManager().restartLoader(LOADER_ID_BYTES, null, this);
break;
case ExchangeActivity.RESULT_EXCHANGE_CANCELED:
// do nothing
break;
}
break;
}
case IntentIntegratorSupportV4.REQUEST_CODE: {
IntentResult scanResult = IntentIntegratorSupportV4.parseActivityResult(requestCode,
resultCode, data);
if (scanResult != null && scanResult.getFormatName() != null) {
String scannedContent = scanResult.getContents();
Log.d(Constants.TAG, "scannedContent: " + scannedContent);
// look if it's fingerprint only
if (scannedContent.toLowerCase(Locale.ENGLISH).startsWith(Constants.FINGERPRINT_SCHEME)) {
importKeys(null, getFingerprintFromUri(Uri.parse(scanResult.getContents())));
return;
}
// is this a full key encoded as qr code?
if (scannedContent.startsWith("-----BEGIN PGP")) {
// TODO
// mImportActivity.loadCallback(new ImportKeysListFragment.BytesLoaderState(scannedContent.getBytes(), null));
return;
}
// fail...
Notify.showNotify(this, R.string.import_qr_code_wrong, Notify.Style.ERROR);
}
break;
}
}
super.onActivityResult(requestCode, resultCode, data);
}
}
private String getFingerprintFromUri(Uri dataUri) {
String fingerprint = dataUri.toString().split(":")[1].toLowerCase(Locale.ENGLISH);
Log.d(Constants.TAG, "fingerprint: " + fingerprint);
return fingerprint;
}
private static byte[] getSlingedKeys(Intent data) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
Bundle extras = data.getExtras();
if (extras != null) {
byte[] d;
int i = 0;
do {
d = extras.getByteArray(ExchangeConfig.extra.MEMBER_DATA + i);
if (d != null) {
try {
out.write(d);
} catch (IOException e) {
Log.e(Constants.TAG, "IOException", e);
}
i++;
}
} while (d != null);
}
return out.toByteArray();
}
@Override
public Loader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> onCreateLoader(int id, Bundle args) {
switch (id) {
case LOADER_ID_BYTES: {
InputData inputData = new InputData(new ByteArrayInputStream(mImportBytes), mImportBytes.length);
return new ImportKeysListLoader(this, inputData);
}
default:
return null;
}
}
@Override
public void onLoadFinished(Loader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> loader,
AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>> data) {
Log.d(Constants.TAG, "data: " + data.getResult());
GetKeyResult getKeyResult = (GetKeyResult) data.getOperationResult();
LongSparseArray<ParcelableKeyRing> cachedKeyData = null;
// TODO: Use parcels!!!!!!!!!!!!!!!
switch (loader.getId()) {
case LOADER_ID_BYTES:
if (getKeyResult.success()) {
// No error
cachedKeyData = ((ImportKeysListLoader) loader).getParcelableRings();
} else {
getKeyResult.createNotify(this).show();
}
// if (error == null) {
// // No error
// cachedKeyData = ((ImportKeysListLoader) loader).getParcelableRings();
// Log.d(Constants.TAG, "no error!:" + cachedKeyData);
//
// } else if (error instanceof ImportKeysListLoader.NoValidKeysException) {
// Notify.showNotify(this, R.string.error_import_no_valid_keys, Notify.Style.ERROR);
// } else if (error instanceof ImportKeysListLoader.NonPgpPartException) {
// Notify.showNotify(this,
// ((ImportKeysListLoader.NonPgpPartException) error).getCount() + " " + getResources().
// getQuantityString(R.plurals.error_import_non_pgp_part,
// ((ImportKeysListLoader.NonPgpPartException) error).getCount()),
// Notify.Style.OK
// );
// } else {
// Notify.showNotify(this, R.string.error_generic_report_bug, Notify.Style.ERROR);
// }
break;
default:
break;
}
importKeys(cachedKeyData, null);
}
@Override
public void onLoaderReset(Loader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> loader) {
switch (loader.getId()) {
case LOADER_ID_BYTES:
// Clear the data in the adapter.
// mAdapter.clear();
break;
default:
break;
}
}
public ParcelableFileCache.IteratorWithSize<ParcelableKeyRing>
getSelectedData(final LongSparseArray<ParcelableKeyRing> keyData) {
return new ParcelableFileCache.IteratorWithSize<ParcelableKeyRing>() {
int i = 0;
@Override
public int getSize() {
return keyData.size();
}
@Override
public boolean hasNext() {
return (i < getSize());
}
@Override
public ParcelableKeyRing next() {
// get the object by the key.
ParcelableKeyRing key = keyData.valueAt(i);
i++;
return key;
}
@Override
public void remove() {
keyData.remove(i);
}
};
}
public void importKeys(final LongSparseArray<ParcelableKeyRing> keyData, String fingerprint) {
// Message is received after importing is done in KeychainIntentService
KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(
this,
getString(R.string.progress_importing),
ProgressDialog.STYLE_HORIZONTAL,
true) {
public void handleMessage(Message message) {
// handle messages by standard KeychainIntentServiceHandler first
super.handleMessage(message);
if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
// get returned data bundle
Bundle returnData = message.getData();
if (returnData == null) {
return;
}
final ImportKeyResult result =
returnData.getParcelable(OperationResult.EXTRA_RESULT);
if (result == null) {
Log.e(Constants.TAG, "result == null");
return;
}
finish();
Intent certifyIntent = new Intent(AddKeysActivity.this, MultiCertifyKeyActivity.class);
certifyIntent.putExtra(MultiCertifyKeyActivity.EXTRA_RESULT, result);
certifyIntent.putExtra(MultiCertifyKeyActivity.EXTRA_KEY_IDS, result.getImportedMasterKeyIds());
certifyIntent.putExtra(MultiCertifyKeyActivity.EXTRA_CERTIFY_KEY_ID, mExchangeMasterKeyId);
startActivity(certifyIntent);
result.createNotify(AddKeysActivity.this).show();
}
}
};
if (keyData != null) {
Log.d(Constants.TAG, "importKeys started");
// Send all information needed to service to import key in other thread
Intent intent = new Intent(this, KeychainIntentService.class);
intent.setAction(KeychainIntentService.ACTION_IMPORT_KEYRING);
// fill values for this action
Bundle data = new Bundle();
// instead of giving the entries by Intent extra, cache them into a
// file to prevent Java Binder problems on heavy imports
// read FileImportCache for more info.
try {
// We parcel this iteratively into a file - anything we can
// display here, we should be able to import.
ParcelableFileCache<ParcelableKeyRing> cache =
new ParcelableFileCache<ParcelableKeyRing>(this, "key_import.pcl");
cache.writeCache(getSelectedData(keyData));
intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
// Create a new Messenger for the communication back
Messenger messenger = new Messenger(saveHandler);
intent.putExtra(KeychainIntentService.EXTRA_MESSENGER, messenger);
// show progress dialog
saveHandler.showProgressDialog(this);
// start service with intent
startService(intent);
} catch (IOException e) {
Log.e(Constants.TAG, "Problem writing cache file", e);
Notify.showNotify(this, "Problem writing cache file!", Notify.Style.ERROR);
}
} else if (fingerprint != null) {
// search config
Preferences prefs = Preferences.getPreferences(this);
Preferences.CloudSearchPrefs cloudPrefs = new Preferences.CloudSearchPrefs(true, true, prefs.getPreferredKeyserver());
// Send all information needed to service to query keys in other thread
Intent intent = new Intent(this, KeychainIntentService.class);
intent.setAction(KeychainIntentService.ACTION_DOWNLOAD_AND_IMPORT_KEYS);
// fill values for this action
Bundle data = new Bundle();
data.putString(KeychainIntentService.DOWNLOAD_KEY_SERVER, cloudPrefs.keyserver);
final ImportKeysListEntry keyEntry = new ImportKeysListEntry();
keyEntry.setFingerprintHex(fingerprint);
keyEntry.setBitStrength(1337); // TODO: make optional!
keyEntry.addOrigin(cloudPrefs.keyserver);
ArrayList<ImportKeysListEntry> selectedEntries = new ArrayList<ImportKeysListEntry>();
selectedEntries.add(keyEntry);
data.putParcelableArrayList(KeychainIntentService.DOWNLOAD_KEY_LIST, selectedEntries);
intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
// Create a new Messenger for the communication back
Messenger messenger = new Messenger(saveHandler);
intent.putExtra(KeychainIntentService.EXTRA_MESSENGER, messenger);
// show progress dialog
saveHandler.showProgressDialog(this);
// start service with intent
startService(intent);
} else {
Notify.showNotify(this, R.string.error_nothing_import, Notify.Style.ERROR);
}
}
}
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