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open-keychain/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysActivity.java

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/*
* Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
* Copyright (C) 2011 Senecaso
*
* 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.annotation.TargetApi;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.nfc.NdefMessage;
import android.nfc.NfcAdapter;
import android.os.Build;
import android.os.Bundle;
import android.os.Message;
import android.os.Messenger;
import android.os.Parcelable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import com.beardedhen.androidbootstrap.BootstrapButton;
import com.devspark.appmsg.AppMsg;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.helper.ActionBarHelper;
import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
import org.sufficientlysecure.keychain.service.KeychainIntentService;
import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListEntry;
import org.sufficientlysecure.keychain.ui.dialog.BadImportKeyDialogFragment;
import org.sufficientlysecure.keychain.util.Log;
import java.util.ArrayList;
import java.util.Locale;
public class ImportKeysActivity extends ActionBarActivity implements ActionBar.OnNavigationListener {
public static final String ACTION_IMPORT_KEY = Constants.INTENT_PREFIX + "IMPORT_KEY";
public static final String ACTION_IMPORT_KEY_FROM_QR_CODE = Constants.INTENT_PREFIX
+ "IMPORT_KEY_FROM_QR_CODE";
public static final String ACTION_IMPORT_KEY_FROM_KEYSERVER = Constants.INTENT_PREFIX
+ "IMPORT_KEY_FROM_KEYSERVER";
public static final String ACTION_IMPORT_KEY_FROM_KEYSERVER_AND_RETURN = Constants.INTENT_PREFIX
+ "IMPORT_KEY_FROM_KEY_SERVER_AND_RETURN";
public static final String ACTION_IMPORT_KEY_FROM_KEYBASE = Constants.INTENT_PREFIX
+ "IMPORT_KEY_FROM_KEYBASE";
// Actions for internal use only:
public static final String ACTION_IMPORT_KEY_FROM_FILE = Constants.INTENT_PREFIX
+ "IMPORT_KEY_FROM_FILE";
public static final String ACTION_IMPORT_KEY_FROM_NFC = Constants.INTENT_PREFIX
+ "IMPORT_KEY_FROM_NFC";
// only used by ACTION_IMPORT_KEY
public static final String EXTRA_KEY_BYTES = "key_bytes";
// only used by ACTION_IMPORT_KEY_FROM_KEYSERVER
public static final String EXTRA_QUERY = "query";
public static final String EXTRA_KEY_ID = "key_id";
public static final String EXTRA_FINGERPRINT = "fingerprint";
// only used by ACTION_IMPORT_KEY_FROM_KEYSERVER_AND_RETURN when used from OpenPgpService
public static final String EXTRA_PENDING_INTENT_DATA = "data";
private Intent mPendingIntentData;
// view
private ImportKeysListFragment mListFragment;
private String[] mNavigationStrings;
private Fragment mCurrentFragment;
private BootstrapButton mImportButton;
private static final Class[] NAVIGATION_CLASSES = new Class[]{
ImportKeysServerFragment.class,
ImportKeysFileFragment.class,
ImportKeysQrCodeFragment.class,
ImportKeysClipboardFragment.class,
ImportKeysNFCFragment.class,
ImportKeysKeybaseFragment.class
};
private static final int NAV_SERVER = 0;
private static final int NAV_FILE = 1;
private static final int NAV_QR_CODE = 2;
private static final int NAV_CLIPBOARD = 3;
private static final int NAV_NFC = 4;
private static final int NAV_KEYBASE = 5;
private int mCurrentNavPosition = -1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.import_keys_activity);
mImportButton = (BootstrapButton) findViewById(R.id.import_import);
mImportButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
importKeys();
}
});
mNavigationStrings = getResources().getStringArray(R.array.import_action_list);
if (ACTION_IMPORT_KEY_FROM_KEYSERVER_AND_RETURN.equals(getIntent().getAction())) {
setTitle(R.string.nav_import);
} else {
ActionBarHelper.setBackButton(this);
getSupportActionBar().setDisplayShowTitleEnabled(false);
// set drop down navigation
Context context = getSupportActionBar().getThemedContext();
ArrayAdapter<CharSequence> navigationAdapter = ArrayAdapter.createFromResource(context,
R.array.import_action_list, android.R.layout.simple_spinner_dropdown_item);
getSupportActionBar().setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
getSupportActionBar().setListNavigationCallbacks(navigationAdapter, this);
}
handleActions(savedInstanceState, getIntent());
}
protected void handleActions(Bundle savedInstanceState, Intent intent) {
String action = intent.getAction();
Bundle extras = intent.getExtras();
Uri dataUri = intent.getData();
String scheme = intent.getScheme();
if (extras == null) {
extras = new Bundle();
}
if (Intent.ACTION_VIEW.equals(action)) {
// Android's Action when opening file associated to Keychain (see AndroidManifest.xml)
// override action to delegate it to Keychain's ACTION_IMPORT_KEY
action = ACTION_IMPORT_KEY;
}
if (scheme != null && scheme.toLowerCase(Locale.ENGLISH).equals(Constants.FINGERPRINT_SCHEME)) {
/* Scanning a fingerprint directly with Barcode Scanner */
loadFromFingerprintUri(savedInstanceState, dataUri);
} else if (ACTION_IMPORT_KEY.equals(action)) {
/* Keychain's own Actions */
// display file fragment
loadNavFragment(NAV_FILE, null);
if (dataUri != null) {
// action: directly load data
startListFragment(savedInstanceState, null, dataUri, null);
} else if (extras.containsKey(EXTRA_KEY_BYTES)) {
byte[] importData = intent.getByteArrayExtra(EXTRA_KEY_BYTES);
// action: directly load data
startListFragment(savedInstanceState, importData, null, null);
}
} else if (ACTION_IMPORT_KEY_FROM_KEYSERVER.equals(action)
|| ACTION_IMPORT_KEY_FROM_KEYSERVER_AND_RETURN.equals(action)) {
// only used for OpenPgpService
if (extras.containsKey(EXTRA_PENDING_INTENT_DATA)) {
mPendingIntentData = extras.getParcelable(EXTRA_PENDING_INTENT_DATA);
}
if (extras.containsKey(EXTRA_QUERY) || extras.containsKey(EXTRA_KEY_ID)) {
/* simple search based on query or key id */
String query = null;
if (extras.containsKey(EXTRA_QUERY)) {
query = extras.getString(EXTRA_QUERY);
} else if (extras.containsKey(EXTRA_KEY_ID)) {
long keyId = intent.getLongExtra(EXTRA_KEY_ID, 0);
if (keyId != 0) {
query = PgpKeyHelper.convertKeyIdToHex(keyId);
}
}
if (query != null && query.length() > 0) {
// display keyserver fragment with query
Bundle args = new Bundle();
args.putString(ImportKeysServerFragment.ARG_QUERY, query);
loadNavFragment(NAV_SERVER, args);
// action: search immediately
startListFragment(savedInstanceState, null, null, query);
} else {
Log.e(Constants.TAG, "Query is empty!");
return;
}
} else if (extras.containsKey(EXTRA_FINGERPRINT)) {
/*
* search based on fingerprint, here we can enforce a check in the end
* if the right key has been downloaded
*/
String fingerprint = intent.getStringExtra(EXTRA_FINGERPRINT);
loadFromFingerprint(savedInstanceState, fingerprint);
} else {
Log.e(Constants.TAG,
"IMPORT_KEY_FROM_KEYSERVER action needs to contain the 'query', 'key_id', or " +
"'fingerprint' extra!"
);
return;
}
} else if (ACTION_IMPORT_KEY_FROM_FILE.equals(action)) {
// NOTE: this only displays the appropriate fragment, no actions are taken
loadNavFragment(NAV_FILE, null);
// no immediate actions!
startListFragment(savedInstanceState, null, null, null);
} else if (ACTION_IMPORT_KEY_FROM_QR_CODE.equals(action)) {
// also exposed in AndroidManifest
// NOTE: this only displays the appropriate fragment, no actions are taken
loadNavFragment(NAV_QR_CODE, null);
// no immediate actions!
startListFragment(savedInstanceState, null, null, null);
} else if (ACTION_IMPORT_KEY_FROM_NFC.equals(action)) {
// NOTE: this only displays the appropriate fragment, no actions are taken
loadNavFragment(NAV_NFC, null);
// no immediate actions!
startListFragment(savedInstanceState, null, null, null);
} else if (ACTION_IMPORT_KEY_FROM_KEYBASE.equals(action)) {
// NOTE: this only displays the appropriate fragment, no actions are taken
loadNavFragment(NAV_KEYBASE, null);
// no immediate actions!
startListFragment(savedInstanceState, null, null, null);
} else {
startListFragment(savedInstanceState, null, null, null);
}
}
private void startListFragment(Bundle savedInstanceState, byte[] bytes, Uri dataUri, String serverQuery) {
// However, if we're being restored from a previous state,
// then we don't need to do anything and should return or else
// we could end up with overlapping fragments.
if (savedInstanceState != null) {
return;
}
// Create an instance of the fragment
mListFragment = ImportKeysListFragment.newInstance(bytes, dataUri, serverQuery);
// Add the fragment to the 'fragment_container' FrameLayout
// NOTE: We use commitAllowingStateLoss() to prevent weird crashes!
getSupportFragmentManager().beginTransaction()
.replace(R.id.import_keys_list_container, mListFragment)
.commitAllowingStateLoss();
// do it immediately!
getSupportFragmentManager().executePendingTransactions();
}
/**
* "Basically, when using a list navigation, onNavigationItemSelected() is automatically
* called when your activity is created/re-created, whether you like it or not. To prevent
* your Fragment's onCreateView() from being called twice, this initial automatic call to
* onNavigationItemSelected() should check whether the Fragment is already in existence
* inside your Activity."
* <p/>
* from http://stackoverflow.com/a/14295474
* <p/>
* In our case, if we start ImportKeysActivity with parameters to directly search using a fingerprint,
* the fragment would be loaded twice resulting in the query being empty after the second load.
* <p/>
* Our solution:
* To prevent that a fragment will be loaded again even if it was already loaded loadNavFragment
* checks against mCurrentNavPosition.
*
* @param itemPosition
* @param itemId
* @return
*/
@Override
public boolean onNavigationItemSelected(int itemPosition, long itemId) {
Log.d(Constants.TAG, "onNavigationItemSelected");
loadNavFragment(itemPosition, null);
return true;
}
private void loadNavFragment(int itemPosition, Bundle args) {
if (mCurrentNavPosition != itemPosition) {
if (ActionBar.NAVIGATION_MODE_LIST == getSupportActionBar().getNavigationMode()) {
getSupportActionBar().setSelectedNavigationItem(itemPosition);
}
loadFragment(NAVIGATION_CLASSES[itemPosition], args, mNavigationStrings[itemPosition]);
mCurrentNavPosition = itemPosition;
}
}
private void loadFragment(Class<?> clss, Bundle args, String tag) {
mCurrentFragment = Fragment.instantiate(this, clss.getName(), args);
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
// Replace whatever is in the fragment container with this fragment
// and give the fragment a tag name equal to the string at the position selected
ft.replace(R.id.import_navigation_fragment, mCurrentFragment, tag);
// Apply changes
ft.commit();
}
public void loadFromFingerprintUri(Bundle savedInstanceState, Uri dataUri) {
String fingerprint = dataUri.toString().split(":")[1].toLowerCase(Locale.ENGLISH);
Log.d(Constants.TAG, "fingerprint: " + fingerprint);
loadFromFingerprint(savedInstanceState, fingerprint);
}
public void loadFromFingerprint(Bundle savedInstanceState, String fingerprint) {
if (fingerprint == null || fingerprint.length() < 40) {
AppMsg.makeText(this, R.string.import_qr_code_too_short_fingerprint,
AppMsg.STYLE_ALERT).show();
return;
}
String query = "0x" + fingerprint;
// display keyserver fragment with query
Bundle args = new Bundle();
args.putString(ImportKeysServerFragment.ARG_QUERY, query);
args.putBoolean(ImportKeysServerFragment.ARG_DISABLE_QUERY_EDIT, true);
loadNavFragment(NAV_SERVER, args);
// action: search directly
startListFragment(savedInstanceState, null, null, query);
}
public void loadCallback(byte[] importData, Uri dataUri, String serverQuery, String keyServer, String keybaseQuery) {
mListFragment.loadNew(importData, dataUri, serverQuery, keyServer, keybaseQuery);
}
/**
* Import keys with mImportData
*/
public void importKeys() {
// Message is received after importing is done in KeychainIntentService
KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(
this,
getString(R.string.progress_importing),
ProgressDialog.STYLE_HORIZONTAL) {
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();
int added = returnData.getInt(KeychainIntentService.RESULT_IMPORT_ADDED);
int updated = returnData
.getInt(KeychainIntentService.RESULT_IMPORT_UPDATED);
int bad = returnData.getInt(KeychainIntentService.RESULT_IMPORT_BAD);
String toastMessage;
if (added > 0 && updated > 0) {
String addedStr = getResources().getQuantityString(
R.plurals.keys_added_and_updated_1, added, added);
String updatedStr = getResources().getQuantityString(
R.plurals.keys_added_and_updated_2, updated, updated);
toastMessage = addedStr + updatedStr;
} else if (added > 0) {
toastMessage = getResources().getQuantityString(R.plurals.keys_added,
added, added);
} else if (updated > 0) {
toastMessage = getResources().getQuantityString(R.plurals.keys_updated,
updated, updated);
} else {
toastMessage = getString(R.string.no_keys_added_or_updated);
}
AppMsg.makeText(ImportKeysActivity.this, toastMessage, AppMsg.STYLE_INFO)
.show();
if (bad > 0) {
BadImportKeyDialogFragment badImportKeyDialogFragment =
BadImportKeyDialogFragment.newInstance(bad);
badImportKeyDialogFragment.show(getSupportFragmentManager(), "badKeyDialog");
}
if (ACTION_IMPORT_KEY_FROM_KEYSERVER_AND_RETURN.equals(getIntent().getAction())) {
ImportKeysActivity.this.setResult(Activity.RESULT_OK, mPendingIntentData);
finish();
}
}
}
};
if (mListFragment.getKeyBytes() != null || mListFragment.getDataUri() != 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();
// get selected key entries
ArrayList<ImportKeysListEntry> selectedEntries = mListFragment.getSelectedData();
data.putParcelableArrayList(KeychainIntentService.IMPORT_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 if (mListFragment.getServerQuery() != null) {
// 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, mListFragment.getKeyServer());
// get selected key entries
ArrayList<ImportKeysListEntry> selectedEntries = mListFragment.getSelectedData();
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 if (mListFragment.getKeybaseQuery() != null) {
// Send all information needed to service to query keys in other thread
Intent intent = new Intent(this, KeychainIntentService.class);
intent.setAction(KeychainIntentService.ACTION_IMPORT_KEYBASE_KEYS);
// fill values for this action
Bundle data = new Bundle();
// get selected key entries
ArrayList<ImportKeysListEntry> selectedEntries = mListFragment.getSelectedData();
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 {
AppMsg.makeText(this, R.string.error_nothing_import, AppMsg.STYLE_ALERT).show();
}
}
/**
* NFC
*/
@Override
public void onResume() {
super.onResume();
// Check to see if the Activity started due to an Android Beam
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN
&& NfcAdapter.ACTION_NDEF_DISCOVERED.equals(getIntent().getAction())) {
handleActionNdefDiscovered(getIntent());
} else {
Log.e(Constants.TAG, "Android Beam not supported by Android < 4.1");
}
}
/**
* NFC
*/
@Override
public void onNewIntent(Intent intent) {
// onResume gets called after this to handle the intent
setIntent(intent);
}
/**
* NFC: Parses the NDEF Message from the intent and prints to the TextView
*/
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
void handleActionNdefDiscovered(Intent intent) {
Parcelable[] rawMsgs = intent.getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES);
// only one message sent during the beam
NdefMessage msg = (NdefMessage) rawMsgs[0];
// record 0 contains the MIME type, record 1 is the AAR, if present
byte[] receivedKeyringBytes = msg.getRecords()[0].getPayload();
Intent importIntent = new Intent(this, ImportKeysActivity.class);
importIntent.setAction(ImportKeysActivity.ACTION_IMPORT_KEY);
importIntent.putExtra(ImportKeysActivity.EXTRA_KEY_BYTES, receivedKeyringBytes);
handleActions(null, importIntent);
}
}
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