335 lines
14 KiB
Java
335 lines
14 KiB
Java
/*
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* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.ui;
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import android.content.Intent;
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import android.database.Cursor;
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import android.graphics.Color;
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import android.net.Uri;
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import android.os.Bundle;
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import android.support.v4.app.Fragment;
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import android.support.v4.app.LoaderManager;
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import android.support.v4.content.CursorLoader;
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import android.support.v4.content.Loader;
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import android.text.Spannable;
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import android.text.SpannableStringBuilder;
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import android.text.format.DateFormat;
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import android.text.style.ForegroundColorSpan;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.ListView;
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import android.widget.TextView;
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import com.beardedhen.androidbootstrap.BootstrapButton;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
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import org.sufficientlysecure.keychain.provider.KeychainContract;
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import org.sufficientlysecure.keychain.provider.ProviderHelper;
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import org.sufficientlysecure.keychain.ui.adapter.ViewKeyKeysAdapter;
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import org.sufficientlysecure.keychain.ui.adapter.ViewKeyUserIdsAdapter;
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import org.sufficientlysecure.keychain.util.Log;
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import java.util.Date;
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public class ViewKeyMainFragment extends Fragment implements
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LoaderManager.LoaderCallbacks<Cursor>{
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public static final String ARG_DATA_URI = "uri";
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private TextView mName;
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private TextView mEmail;
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private TextView mComment;
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private TextView mAlgorithm;
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private TextView mKeyId;
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private TextView mExpiry;
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private TextView mCreation;
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private TextView mFingerprint;
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private BootstrapButton mActionEncrypt;
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private ListView mUserIds;
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private ListView mKeys;
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private static final int LOADER_ID_KEYRING = 0;
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private static final int LOADER_ID_USER_IDS = 1;
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private static final int LOADER_ID_KEYS = 2;
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private ViewKeyUserIdsAdapter mUserIdsAdapter;
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private ViewKeyKeysAdapter mKeysAdapter;
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private Uri mDataUri;
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
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View view = inflater.inflate(R.layout.view_key_main_fragment, container, false);
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mName = (TextView) view.findViewById(R.id.name);
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mEmail = (TextView) view.findViewById(R.id.email);
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mComment = (TextView) view.findViewById(R.id.comment);
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mKeyId = (TextView) view.findViewById(R.id.key_id);
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mAlgorithm = (TextView) view.findViewById(R.id.algorithm);
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mCreation = (TextView) view.findViewById(R.id.creation);
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mExpiry = (TextView) view.findViewById(R.id.expiry);
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mFingerprint = (TextView) view.findViewById(R.id.fingerprint);
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mUserIds = (ListView) view.findViewById(R.id.user_ids);
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mKeys = (ListView) view.findViewById(R.id.keys);
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mActionEncrypt = (BootstrapButton) view.findViewById(R.id.action_encrypt);
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return view;
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}
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@Override
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public void onActivityCreated(Bundle savedInstanceState) {
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super.onActivityCreated(savedInstanceState);
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Uri dataUri = getArguments().getParcelable(ARG_DATA_URI);
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if (dataUri == null) {
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Log.e(Constants.TAG, "Data missing. Should be Uri of key!");
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getActivity().finish();
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return;
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}
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loadData(dataUri);
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}
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private void loadData(Uri dataUri) {
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if (dataUri.equals(mDataUri)) {
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Log.d(Constants.TAG, "Same URI, no need to load the data again!");
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return;
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}
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mDataUri = dataUri;
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Log.i(Constants.TAG, "mDataUri: " + mDataUri.toString());
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mActionEncrypt.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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encryptToContact(mDataUri);
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}
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});
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mUserIdsAdapter = new ViewKeyUserIdsAdapter(getActivity(), null, 0);
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mUserIds.setAdapter(mUserIdsAdapter);
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mKeysAdapter = new ViewKeyKeysAdapter(getActivity(), null, 0);
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mKeys.setAdapter(mKeysAdapter);
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// Prepare the loaders. Either re-connect with an existing ones,
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// or start new ones.
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getActivity().getSupportLoaderManager().initLoader(LOADER_ID_KEYRING, null, this);
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getActivity().getSupportLoaderManager().initLoader(LOADER_ID_USER_IDS, null, this);
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getActivity().getSupportLoaderManager().initLoader(LOADER_ID_KEYS, null, this);
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}
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static final String[] KEYRING_PROJECTION = new String[]{KeychainContract.KeyRings._ID, KeychainContract.KeyRings.MASTER_KEY_ID,
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KeychainContract.UserIds.USER_ID};
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static final int KEYRING_INDEX_ID = 0;
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static final int KEYRING_INDEX_MASTER_KEY_ID = 1;
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static final int KEYRING_INDEX_USER_ID = 2;
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static final String[] USER_IDS_PROJECTION = new String[]{KeychainContract.UserIds._ID, KeychainContract.UserIds.USER_ID,
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KeychainContract.UserIds.RANK,};
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// not the main user id
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static final String USER_IDS_SELECTION = KeychainContract.UserIds.RANK + " > 0 ";
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static final String USER_IDS_SORT_ORDER = KeychainContract.UserIds.USER_ID + " COLLATE LOCALIZED ASC";
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static final String[] KEYS_PROJECTION = new String[]{KeychainContract.Keys._ID, KeychainContract.Keys.KEY_ID,
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KeychainContract.Keys.IS_MASTER_KEY, KeychainContract.Keys.ALGORITHM, KeychainContract.Keys.KEY_SIZE, KeychainContract.Keys.CAN_CERTIFY, KeychainContract.Keys.CAN_SIGN,
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KeychainContract.Keys.CAN_ENCRYPT, KeychainContract.Keys.CREATION, KeychainContract.Keys.EXPIRY, KeychainContract.Keys.FINGERPRINT};
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static final String KEYS_SORT_ORDER = KeychainContract.Keys.RANK + " ASC";
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static final int KEYS_INDEX_ID = 0;
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static final int KEYS_INDEX_KEY_ID = 1;
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static final int KEYS_INDEX_IS_MASTER_KEY = 2;
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static final int KEYS_INDEX_ALGORITHM = 3;
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static final int KEYS_INDEX_KEY_SIZE = 4;
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static final int KEYS_INDEX_CAN_CERTIFY = 5;
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static final int KEYS_INDEX_CAN_SIGN = 6;
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static final int KEYS_INDEX_CAN_ENCRYPT = 7;
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static final int KEYS_INDEX_CREATION = 8;
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static final int KEYS_INDEX_EXPIRY = 9;
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static final int KEYS_INDEX_FINGERPRINT = 10;
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public Loader<Cursor> onCreateLoader(int id, Bundle args) {
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switch (id) {
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case LOADER_ID_KEYRING: {
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Uri baseUri = mDataUri;
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// Now create and return a CursorLoader that will take care of
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// creating a Cursor for the data being displayed.
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return new CursorLoader(getActivity(), baseUri, KEYRING_PROJECTION, null, null, null);
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}
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case LOADER_ID_USER_IDS: {
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Uri baseUri = KeychainContract.UserIds.buildUserIdsUri(mDataUri);
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// Now create and return a CursorLoader that will take care of
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// creating a Cursor for the data being displayed.
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return new CursorLoader(getActivity(), baseUri, USER_IDS_PROJECTION, USER_IDS_SELECTION, null,
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USER_IDS_SORT_ORDER);
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}
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case LOADER_ID_KEYS: {
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Uri baseUri = KeychainContract.Keys.buildKeysUri(mDataUri);
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// Now create and return a CursorLoader that will take care of
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// creating a Cursor for the data being displayed.
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return new CursorLoader(getActivity(), baseUri, KEYS_PROJECTION, null, null, KEYS_SORT_ORDER);
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}
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default:
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return null;
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}
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}
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public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
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// Swap the new cursor in. (The framework will take care of closing the
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// old cursor once we return.)
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switch (loader.getId()) {
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case LOADER_ID_KEYRING:
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if (data.moveToFirst()) {
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// get name, email, and comment from USER_ID
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String[] mainUserId = PgpKeyHelper.splitUserId(data
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.getString(KEYRING_INDEX_USER_ID));
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if (mainUserId[0] != null) {
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getActivity().setTitle(mainUserId[0]);
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mName.setText(mainUserId[0]);
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} else {
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getActivity().setTitle(R.string.user_id_no_name);
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mName.setText(R.string.user_id_no_name);
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}
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mEmail.setText(mainUserId[1]);
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mComment.setText(mainUserId[2]);
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}
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break;
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case LOADER_ID_USER_IDS:
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mUserIdsAdapter.swapCursor(data);
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break;
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case LOADER_ID_KEYS:
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// the first key here is our master key
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if (data.moveToFirst()) {
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// get key id from MASTER_KEY_ID
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long keyId = data.getLong(KEYS_INDEX_KEY_ID);
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String keyIdStr = PgpKeyHelper.convertKeyIdToHex(keyId);
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mKeyId.setText(keyIdStr);
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// get creation date from CREATION
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if (data.isNull(KEYS_INDEX_CREATION)) {
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mCreation.setText(R.string.none);
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} else {
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Date creationDate = new Date(data.getLong(KEYS_INDEX_CREATION) * 1000);
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mCreation.setText(DateFormat.getDateFormat(getActivity().getApplicationContext()).format(
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creationDate));
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}
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// get expiry date from EXPIRY
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if (data.isNull(KEYS_INDEX_EXPIRY)) {
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mExpiry.setText(R.string.none);
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} else {
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Date expiryDate = new Date(data.getLong(KEYS_INDEX_EXPIRY) * 1000);
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mExpiry.setText(DateFormat.getDateFormat(getActivity().getApplicationContext()).format(
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expiryDate));
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}
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String algorithmStr = PgpKeyHelper.getAlgorithmInfo(
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data.getInt(KEYS_INDEX_ALGORITHM), data.getInt(KEYS_INDEX_KEY_SIZE));
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mAlgorithm.setText(algorithmStr);
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byte[] fingerprintBlob = data.getBlob(KEYS_INDEX_FINGERPRINT);
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if (fingerprintBlob == null) {
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// FALLBACK for old database entries
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fingerprintBlob = ProviderHelper.getFingerprint(getActivity(), mDataUri);
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}
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String fingerprint = PgpKeyHelper.convertFingerprintToHex(fingerprintBlob, true);
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mFingerprint.setText(colorizeFingerprint(fingerprint));
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}
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mKeysAdapter.swapCursor(data);
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break;
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default:
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break;
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}
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}
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private SpannableStringBuilder colorizeFingerprint(String fingerprint) {
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SpannableStringBuilder sb = new SpannableStringBuilder(fingerprint);
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ForegroundColorSpan fcs = new ForegroundColorSpan(Color.BLACK);
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// for each 4 characters of the fingerprint + 1 space
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for (int i = 0; i < fingerprint.length(); i += 5) {
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int minFingLength = Math.min(i + 4, fingerprint.length());
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String fourChars = fingerprint.substring(i, minFingLength);
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// Create a foreground color by converting the 4 fingerprint chars to an int hashcode
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// and then converting that int to hex to use as a color
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fcs = new ForegroundColorSpan(
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Color.parseColor(String.format("#%06X", (0xFFFFFF & fourChars.hashCode()))));
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sb.setSpan(fcs, i, minFingLength, Spannable.SPAN_INCLUSIVE_INCLUSIVE);
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}
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return sb;
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}
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/**
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* This is called when the last Cursor provided to onLoadFinished() above is about to be closed.
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* We need to make sure we are no longer using it.
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*/
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public void onLoaderReset(Loader<Cursor> loader) {
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switch (loader.getId()) {
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case LOADER_ID_KEYRING:
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// No resources need to be freed for this ID
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break;
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case LOADER_ID_USER_IDS:
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mUserIdsAdapter.swapCursor(null);
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break;
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case LOADER_ID_KEYS:
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mKeysAdapter.swapCursor(null);
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break;
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default:
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break;
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}
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}
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private void encryptToContact(Uri dataUri) {
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long keyId = ProviderHelper.getMasterKeyId(getActivity(), dataUri);
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long[] encryptionKeyIds = new long[]{keyId};
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Intent intent = new Intent(getActivity(), EncryptActivity.class);
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intent.setAction(EncryptActivity.ACTION_ENCRYPT);
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intent.putExtra(EncryptActivity.EXTRA_ENCRYPTION_KEY_IDS, encryptionKeyIds);
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// used instead of startActivity set actionbar based on callingPackage
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startActivityForResult(intent, 0);
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}
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private void certifyKey(Uri dataUri) {
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Intent signIntent = new Intent(getActivity(), CertifyKeyActivity.class);
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signIntent.setData(dataUri);
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startActivity(signIntent);
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}
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} |