open-keychain/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CertifyKeyActivity.java
2014-08-01 00:22:15 +02:00

384 lines
15 KiB
Java

/*
* Copyright (C) 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.app.ProgressDialog;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.PorterDuff;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.Messenger;
import android.support.v4.app.LoaderManager;
import android.support.v4.app.NavUtils;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.support.v7.app.ActionBarActivity;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.TextView;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.helper.Preferences;
import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
import org.sufficientlysecure.keychain.provider.KeychainContract;
import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
import org.sufficientlysecure.keychain.service.KeychainIntentService;
import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
import org.sufficientlysecure.keychain.service.OperationResultParcel;
import org.sufficientlysecure.keychain.service.PassphraseCacheService;
import org.sufficientlysecure.keychain.ui.adapter.UserIdsAdapter;
import org.sufficientlysecure.keychain.ui.dialog.PassphraseDialogFragment;
import org.sufficientlysecure.keychain.util.Log;
import org.sufficientlysecure.keychain.util.Notify;
import java.util.ArrayList;
/**
* Signs the specified public key with the specified secret master key
*/
public class CertifyKeyActivity extends ActionBarActivity implements
SelectSecretKeyLayoutFragment.SelectSecretKeyCallback, LoaderManager.LoaderCallbacks<Cursor> {
private View mCertifyButton;
private ImageView mActionCertifyImage;
private CheckBox mUploadKeyCheckbox;
private Spinner mSelectKeyserverSpinner;
private SelectSecretKeyLayoutFragment mSelectKeyFragment;
private Uri mDataUri;
private long mPubKeyId = 0;
private long mMasterKeyId = 0;
private ListView mUserIds;
private UserIdsAdapter mUserIdsAdapter;
private static final int LOADER_ID_KEYRING = 0;
private static final int LOADER_ID_USER_IDS = 1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.certify_key_activity);
mSelectKeyFragment = (SelectSecretKeyLayoutFragment) getSupportFragmentManager()
.findFragmentById(R.id.sign_key_select_key_fragment);
mSelectKeyserverSpinner = (Spinner) findViewById(R.id.upload_key_keyserver);
mUploadKeyCheckbox = (CheckBox) findViewById(R.id.sign_key_upload_checkbox);
mCertifyButton = findViewById(R.id.certify_key_certify_button);
mActionCertifyImage = (ImageView) findViewById(R.id.certify_key_action_certify_image);
mUserIds = (ListView) findViewById(R.id.view_key_user_ids);
// make certify image gray, like action icons
mActionCertifyImage.setColorFilter(getResources().getColor(R.color.tertiary_text_light),
PorterDuff.Mode.SRC_IN);
mSelectKeyFragment.setCallback(this);
mSelectKeyFragment.setFilterCertify(true);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, Preferences.getPreferences(this)
.getKeyServers()
);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
mSelectKeyserverSpinner.setAdapter(adapter);
if (!mUploadKeyCheckbox.isChecked()) {
mSelectKeyserverSpinner.setEnabled(false);
} else {
mSelectKeyserverSpinner.setEnabled(true);
}
mUploadKeyCheckbox.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (!isChecked) {
mSelectKeyserverSpinner.setEnabled(false);
} else {
mSelectKeyserverSpinner.setEnabled(true);
}
}
});
mCertifyButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (mPubKeyId != 0) {
if (mMasterKeyId == 0) {
mSelectKeyFragment.setError(getString(R.string.select_key_to_certify));
Notify.showNotify(CertifyKeyActivity.this, getString(R.string.select_key_to_certify),
Notify.Style.ERROR);
} else {
initiateCertifying();
}
}
}
});
mDataUri = getIntent().getData();
if (mDataUri == null) {
Log.e(Constants.TAG, "Intent data missing. Should be Uri of key!");
finish();
return;
}
Log.e(Constants.TAG, "uri: " + mDataUri);
mUserIdsAdapter = new UserIdsAdapter(this, null, 0, true);
mUserIds.setAdapter(mUserIdsAdapter);
mUserIds.setOnItemClickListener(mUserIdsAdapter);
getSupportLoaderManager().initLoader(LOADER_ID_KEYRING, null, this);
getSupportLoaderManager().initLoader(LOADER_ID_USER_IDS, null, this);
}
static final String USER_IDS_SELECTION = UserIds.IS_REVOKED + " = 0";
static final String[] KEYRING_PROJECTION =
new String[]{
KeyRings._ID,
KeyRings.MASTER_KEY_ID,
KeyRings.FINGERPRINT,
KeyRings.USER_ID,
};
static final int INDEX_MASTER_KEY_ID = 1;
static final int INDEX_FINGERPRINT = 2;
static final int INDEX_USER_ID = 3;
@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
switch (id) {
case LOADER_ID_KEYRING: {
Uri uri = KeyRings.buildUnifiedKeyRingUri(mDataUri);
return new CursorLoader(this, uri, KEYRING_PROJECTION, null, null, null);
}
case LOADER_ID_USER_IDS: {
Uri uri = UserIds.buildUserIdsUri(mDataUri);
return new CursorLoader(this, uri,
UserIdsAdapter.USER_IDS_PROJECTION, USER_IDS_SELECTION, null, null);
}
}
return null;
}
@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
switch (loader.getId()) {
case LOADER_ID_KEYRING:
// the first key here is our master key
if (data.moveToFirst()) {
// TODO: put findViewById in onCreate!
mPubKeyId = data.getLong(INDEX_MASTER_KEY_ID);
String keyIdStr = PgpKeyHelper.convertKeyIdToHex(mPubKeyId);
((TextView) findViewById(R.id.key_id)).setText(keyIdStr);
String mainUserId = data.getString(INDEX_USER_ID);
((TextView) findViewById(R.id.main_user_id)).setText(mainUserId);
byte[] fingerprintBlob = data.getBlob(INDEX_FINGERPRINT);
String fingerprint = PgpKeyHelper.convertFingerprintToHex(fingerprintBlob);
((TextView) findViewById(R.id.view_key_fingerprint))
.setText(PgpKeyHelper.colorizeFingerprint(fingerprint));
}
break;
case LOADER_ID_USER_IDS:
mUserIdsAdapter.swapCursor(data);
break;
}
}
@Override
public void onLoaderReset(Loader<Cursor> loader) {
switch (loader.getId()) {
case LOADER_ID_USER_IDS:
mUserIdsAdapter.swapCursor(null);
break;
}
}
/**
* handles the UI bits of the signing process on the UI thread
*/
private void initiateCertifying() {
// get the user's passphrase for this key (if required)
String passphrase = PassphraseCacheService.getCachedPassphrase(this, mMasterKeyId);
if (passphrase == null) {
PassphraseDialogFragment.show(this, mMasterKeyId,
new Handler() {
@Override
public void handleMessage(Message message) {
if (message.what == PassphraseDialogFragment.MESSAGE_OKAY) {
startCertifying();
}
}
}
);
// bail out; need to wait until the user has entered the passphrase before trying again
return;
} else {
startCertifying();
}
}
/**
* kicks off the actual signing process on a background thread
*/
private void startCertifying() {
// Bail out if there is not at least one user id selected
ArrayList<String> userIds = mUserIdsAdapter.getSelectedUserIds();
if (userIds.isEmpty()) {
Notify.showNotify(CertifyKeyActivity.this, "No identities selected!",
Notify.Style.ERROR);
return;
}
// Send all information needed to service to sign key in other thread
Intent intent = new Intent(this, KeychainIntentService.class);
intent.setAction(KeychainIntentService.ACTION_CERTIFY_KEYRING);
// fill values for this action
Bundle data = new Bundle();
data.putLong(KeychainIntentService.CERTIFY_KEY_MASTER_KEY_ID, mMasterKeyId);
data.putLong(KeychainIntentService.CERTIFY_KEY_PUB_KEY_ID, mPubKeyId);
data.putStringArrayList(KeychainIntentService.CERTIFY_KEY_UIDS, userIds);
intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
// Message is received after signing is done in KeychainIntentService
KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(this,
getString(R.string.progress_certifying), ProgressDialog.STYLE_SPINNER) {
public void handleMessage(Message message) {
// handle messages by standard KeychainIntentServiceHandler first
super.handleMessage(message);
if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
Notify.showNotify(CertifyKeyActivity.this, R.string.key_certify_success,
Notify.Style.INFO);
// check if we need to send the key to the server or not
if (mUploadKeyCheckbox.isChecked()) {
// upload the newly signed key to the keyserver
uploadKey();
} else {
setResult(RESULT_OK);
finish();
}
}
}
};
// 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);
}
private void uploadKey() {
// Send all information needed to service to upload key in other thread
Intent intent = new Intent(this, KeychainIntentService.class);
intent.setAction(KeychainIntentService.ACTION_UPLOAD_KEYRING);
// set data uri as path to keyring
Uri blobUri = KeychainContract.KeyRingData.buildPublicKeyRingUri(mDataUri);
intent.setData(blobUri);
// fill values for this action
Bundle data = new Bundle();
Spinner keyServer = (Spinner) findViewById(R.id.upload_key_keyserver);
String server = (String) keyServer.getSelectedItem();
data.putString(KeychainIntentService.UPLOAD_KEY_SERVER, server);
intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
// Message is received after uploading is done in KeychainIntentService
KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(this,
getString(R.string.progress_uploading), ProgressDialog.STYLE_HORIZONTAL) {
public void handleMessage(Message message) {
// handle messages by standard KeychainIntentServiceHandler first
super.handleMessage(message);
if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
Intent intent = new Intent();
intent.putExtra(OperationResultParcel.EXTRA_RESULT, message.getData());
Notify.showNotify(CertifyKeyActivity.this, R.string.key_send_success,
Notify.Style.INFO);
setResult(RESULT_OK);
finish();
}
}
};
// 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);
}
/**
* callback from select key fragment
*/
@Override
public void onKeySelected(long secretKeyId) {
mMasterKeyId = secretKeyId;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home: {
Intent viewIntent = NavUtils.getParentActivityIntent(this);
viewIntent.setData(KeyRings.buildGenericKeyRingUri(mDataUri));
NavUtils.navigateUpTo(this, viewIntent);
return true;
}
}
return super.onOptionsItemSelected(item);
}
}