open-keychain/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptAsymmetricFragment.java
Dominik Schürmann 4979ccd645 Smaller UI fixes
2014-08-04 00:49:16 +02:00

342 lines
14 KiB
Java

/*
* 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.Activity;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.support.v4.widget.CursorAdapter;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Spinner;
import android.widget.SpinnerAdapter;
import android.widget.TextView;
import com.tokenautocomplete.TokenCompleteTextView;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.pgp.KeyRing;
import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
import org.sufficientlysecure.keychain.provider.ProviderHelper;
import org.sufficientlysecure.keychain.ui.widget.EncryptKeyCompletionView;
import org.sufficientlysecure.keychain.util.Log;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
public class EncryptAsymmetricFragment extends Fragment implements EncryptActivityInterface.UpdateListener {
public static final String ARG_SIGNATURE_KEY_ID = "signature_key_id";
public static final String ARG_ENCRYPTION_KEY_IDS = "encryption_key_ids";
ProviderHelper mProviderHelper;
// view
private Spinner mSign;
private EncryptKeyCompletionView mEncryptKeyView;
private SelectSignKeyCursorAdapter mSignAdapter = new SelectSignKeyCursorAdapter();
// model
private EncryptActivityInterface mEncryptInterface;
@Override
public void onNotifyUpdate() {
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
mEncryptInterface = (EncryptActivityInterface) activity;
} catch (ClassCastException e) {
throw new ClassCastException(activity.toString() + " must implement EncryptActivityInterface");
}
}
private void setSignatureKeyId(long signatureKeyId) {
mEncryptInterface.setSignatureKey(signatureKeyId);
}
private void setEncryptionKeyIds(long[] encryptionKeyIds) {
mEncryptInterface.setEncryptionKeys(encryptionKeyIds);
}
private void setEncryptionUserIds(String[] encryptionUserIds) {
mEncryptInterface.setEncryptionUsers(encryptionUserIds);
}
/**
* Inflate the layout for this fragment
*/
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.encrypt_asymmetric_fragment, container, false);
mSign = (Spinner) view.findViewById(R.id.sign);
mSign.setAdapter(mSignAdapter);
mSign.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
setSignatureKeyId(parent.getAdapter().getItemId(position));
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
setSignatureKeyId(Constants.key.none);
}
});
mEncryptKeyView = (EncryptKeyCompletionView) view.findViewById(R.id.recipient_list);
mEncryptKeyView.setThreshold(1); // Start working from first character
return view;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
long signatureKeyId = getArguments().getLong(ARG_SIGNATURE_KEY_ID);
long[] encryptionKeyIds = getArguments().getLongArray(ARG_ENCRYPTION_KEY_IDS);
mProviderHelper = new ProviderHelper(getActivity());
// preselect keys given by arguments (given by Intent to EncryptActivity)
preselectKeys(signatureKeyId, encryptionKeyIds, mProviderHelper);
getLoaderManager().initLoader(1, null, new LoaderManager.LoaderCallbacks<Cursor>() {
@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
// This is called when a new Loader needs to be created. This
// sample only has one Loader, so we don't care about the ID.
Uri baseUri = KeyRings.buildUnifiedKeyRingsUri();
// These are the rows that we will retrieve.
String[] projection = new String[]{
KeyRings._ID,
KeyRings.MASTER_KEY_ID,
KeyRings.KEY_ID,
KeyRings.USER_ID,
KeyRings.EXPIRY,
KeyRings.IS_REVOKED,
// can certify info only related to master key
KeyRings.CAN_CERTIFY,
// has sign may be any subkey
KeyRings.HAS_SIGN,
KeyRings.HAS_ANY_SECRET,
KeyRings.HAS_SECRET
};
String where = KeyRings.HAS_ANY_SECRET + " = 1";
// Now create and return a CursorLoader that will take care of
// creating a Cursor for the data being displayed.
return new CursorLoader(getActivity(), baseUri, projection, where, null, null);
/*return new CursorLoader(getActivity(), KeyRings.buildUnifiedKeyRingsUri(),
new String[]{KeyRings.USER_ID, KeyRings.KEY_ID, KeyRings.MASTER_KEY_ID, KeyRings.HAS_ANY_SECRET}, SIGN_KEY_SELECTION,
null, null);*/
}
@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
mSignAdapter.swapCursor(data);
}
@Override
public void onLoaderReset(Loader<Cursor> loader) {
mSignAdapter.swapCursor(null);
}
});
mEncryptKeyView.setTokenListener(new TokenCompleteTextView.TokenListener() {
@Override
public void onTokenAdded(Object token) {
if (token instanceof EncryptKeyCompletionView.EncryptionKey) {
updateEncryptionKeys();
}
}
@Override
public void onTokenRemoved(Object token) {
if (token instanceof EncryptKeyCompletionView.EncryptionKey) {
updateEncryptionKeys();
}
}
});
}
/**
* If an Intent gives a signatureMasterKeyId and/or encryptionMasterKeyIds, preselect those!
*
* @param preselectedSignatureKeyId
* @param preselectedEncryptionKeyIds
*/
private void preselectKeys(long preselectedSignatureKeyId, long[] preselectedEncryptionKeyIds,
ProviderHelper providerHelper) {
// TODO all of this works under the assumption that the first suitable subkey is always used!
// not sure if we need to distinguish between different subkeys here?
if (preselectedSignatureKeyId != 0) {
try {
CachedPublicKeyRing keyring =
providerHelper.getCachedPublicKeyRing(
KeyRings.buildUnifiedKeyRingUri(preselectedSignatureKeyId));
if(keyring.hasAnySecret()) {
setSignatureKeyId(keyring.getMasterKeyId());
}
} catch (PgpGeneralException e) {
Log.e(Constants.TAG, "key not found!", e);
}
}
if (preselectedEncryptionKeyIds != null) {
for (long preselectedId : preselectedEncryptionKeyIds) {
try {
CachedPublicKeyRing ring = providerHelper.getCachedPublicKeyRing(
KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(preselectedId));
mEncryptKeyView.addObject(mEncryptKeyView.new EncryptionKey(ring));
} catch (PgpGeneralException e) {
Log.e(Constants.TAG, "key not found!", e);
}
}
updateEncryptionKeys();
}
}
private void updateEncryptionKeys() {
List<Object> objects = mEncryptKeyView.getObjects();
List<Long> keyIds = new ArrayList<Long>();
List<String> userIds = new ArrayList<String>();
for (Object object : objects) {
if (object instanceof EncryptKeyCompletionView.EncryptionKey) {
keyIds.add(((EncryptKeyCompletionView.EncryptionKey) object).getKeyId());
userIds.add(((EncryptKeyCompletionView.EncryptionKey) object).getUserId());
}
}
long[] keyIdsArr = new long[keyIds.size()];
Iterator<Long> iterator = keyIds.iterator();
for (int i = 0; i < keyIds.size(); i++) {
keyIdsArr[i] = iterator.next();
}
setEncryptionKeyIds(keyIdsArr);
setEncryptionUserIds(userIds.toArray(new String[userIds.size()]));
}
private class SelectSignKeyCursorAdapter extends BaseAdapter implements SpinnerAdapter {
private CursorAdapter inner;
private int mIndexUserId;
private int mIndexKeyId;
private int mIndexMasterKeyId;
public SelectSignKeyCursorAdapter() {
inner = new CursorAdapter(null, null, 0) {
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
return getActivity().getLayoutInflater().inflate(R.layout.encrypt_asymmetric_signkey, null);
}
@Override
public void bindView(View view, Context context, Cursor cursor) {
String[] userId = KeyRing.splitUserId(cursor.getString(mIndexUserId));
((TextView) view.findViewById(android.R.id.title)).setText(userId[2] == null ? userId[0] : (userId[0] + " (" + userId[2] + ")"));
((TextView) view.findViewById(android.R.id.text1)).setText(userId[1]);
((TextView) view.findViewById(android.R.id.text2)).setText(PgpKeyHelper.convertKeyIdToHex(cursor.getLong(mIndexKeyId)));
}
@Override
public long getItemId(int position) {
mCursor.moveToPosition(position);
return mCursor.getLong(mIndexMasterKeyId);
}
};
}
public Cursor swapCursor(Cursor newCursor) {
if (newCursor == null) return inner.swapCursor(null);
mIndexKeyId = newCursor.getColumnIndex(KeyRings.KEY_ID);
mIndexUserId = newCursor.getColumnIndex(KeyRings.USER_ID);
mIndexMasterKeyId = newCursor.getColumnIndex(KeyRings.MASTER_KEY_ID);
if (newCursor.moveToFirst()) {
do {
if (newCursor.getLong(mIndexMasterKeyId) == mEncryptInterface.getSignatureKey()) {
mSign.setSelection(newCursor.getPosition() + 1);
}
} while (newCursor.moveToNext());
}
return inner.swapCursor(newCursor);
}
@Override
public int getCount() {
return inner.getCount() + 1;
}
@Override
public Object getItem(int position) {
if (position == 0) return null;
return inner.getItem(position - 1);
}
@Override
public long getItemId(int position) {
if (position == 0) return Constants.key.none;
return inner.getItemId(position - 1);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = getDropDownView(position, convertView, parent);
v.findViewById(android.R.id.text1).setVisibility(View.GONE);
return v;
}
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
View v;
if (position == 0) {
if (convertView == null) {
v = inner.newView(null, null, parent);
} else {
v = convertView;
}
((TextView) v.findViewById(android.R.id.title)).setText("None");
v.findViewById(android.R.id.text1).setVisibility(View.GONE);
v.findViewById(android.R.id.text2).setVisibility(View.GONE);
} else {
v = inner.getView(position - 1, convertView, parent);
v.findViewById(android.R.id.text1).setVisibility(View.VISIBLE);
v.findViewById(android.R.id.text2).setVisibility(View.VISIBLE);
}
return v;
}
}
}