378 lines
15 KiB
Java
378 lines
15 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.adapter;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.TimeZone;
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import android.content.Context;
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import android.content.res.ColorStateList;
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import android.database.Cursor;
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import android.graphics.PorterDuff;
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import android.graphics.Typeface;
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import android.support.annotation.Nullable;
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import android.support.v4.widget.CursorAdapter;
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import android.text.Spannable;
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import android.text.SpannableString;
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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.StyleSpan;
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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.ImageView;
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import android.widget.TextView;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.pgp.CanonicalizedSecretKey.SecretKeyType;
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import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
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import org.sufficientlysecure.keychain.service.SaveKeyringParcel;
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import org.sufficientlysecure.keychain.service.SaveKeyringParcel.SubkeyChange;
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import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
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public class SubkeysAdapter extends CursorAdapter {
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private LayoutInflater mInflater;
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private SaveKeyringParcel.Builder mSkpBuilder;
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private boolean mHasAnySecret;
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private ColorStateList mDefaultTextColor;
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public static final String[] SUBKEYS_PROJECTION = new String[]{
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Keys._ID,
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Keys.KEY_ID,
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Keys.RANK,
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Keys.ALGORITHM,
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Keys.KEY_SIZE,
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Keys.KEY_CURVE_OID,
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Keys.HAS_SECRET,
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Keys.CAN_CERTIFY,
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Keys.CAN_ENCRYPT,
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Keys.CAN_SIGN,
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Keys.CAN_AUTHENTICATE,
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Keys.IS_REVOKED,
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Keys.IS_SECURE,
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Keys.CREATION,
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Keys.EXPIRY,
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Keys.FINGERPRINT
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};
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private static final int INDEX_ID = 0;
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private static final int INDEX_KEY_ID = 1;
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private static final int INDEX_RANK = 2;
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private static final int INDEX_ALGORITHM = 3;
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private static final int INDEX_KEY_SIZE = 4;
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private static final int INDEX_KEY_CURVE_OID = 5;
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private static final int INDEX_HAS_SECRET = 6;
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private static final int INDEX_CAN_CERTIFY = 7;
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private static final int INDEX_CAN_ENCRYPT = 8;
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private static final int INDEX_CAN_SIGN = 9;
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private static final int INDEX_CAN_AUTHENTICATE = 10;
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private static final int INDEX_IS_REVOKED = 11;
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private static final int INDEX_IS_SECURE = 12;
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private static final int INDEX_CREATION = 13;
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private static final int INDEX_EXPIRY = 14;
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private static final int INDEX_FINGERPRINT = 15;
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public SubkeysAdapter(Context context, Cursor c, int flags) {
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super(context, c, flags);
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mInflater = LayoutInflater.from(context);
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}
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public long getKeyId(int position) {
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mCursor.moveToPosition(position);
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return mCursor.getLong(INDEX_KEY_ID);
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}
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public long getCreationDate(int position) {
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mCursor.moveToPosition(position);
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return mCursor.getLong(INDEX_CREATION);
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}
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public Long getExpiryDate(int position) {
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mCursor.moveToPosition(position);
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if (mCursor.isNull(INDEX_EXPIRY)) {
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return null;
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} else {
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return mCursor.getLong(INDEX_EXPIRY);
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}
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}
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public int getAlgorithm(int position) {
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mCursor.moveToPosition(position);
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return mCursor.getInt(INDEX_ALGORITHM);
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}
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public int getKeySize(int position) {
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mCursor.moveToPosition(position);
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return mCursor.getInt(INDEX_KEY_SIZE);
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}
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public String getCurveOid(int position) {
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mCursor.moveToPosition(position);
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return mCursor.getString(INDEX_KEY_CURVE_OID);
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}
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public SecretKeyType getSecretKeyType(int position) {
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mCursor.moveToPosition(position);
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return SecretKeyType.fromNum(mCursor.getInt(INDEX_HAS_SECRET));
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}
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@Override
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public Cursor swapCursor(Cursor newCursor) {
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mHasAnySecret = false;
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if (newCursor != null && newCursor.moveToFirst()) {
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do {
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SecretKeyType hasSecret = SecretKeyType.fromNum(newCursor.getInt(INDEX_HAS_SECRET));
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if (hasSecret.isUsable()) {
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mHasAnySecret = true;
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break;
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}
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} while (newCursor.moveToNext());
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}
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return super.swapCursor(newCursor);
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}
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@Override
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public void bindView(View view, Context context, Cursor cursor) {
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TextView vKeyId = (TextView) view.findViewById(R.id.subkey_item_key_id);
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TextView vKeyDetails = (TextView) view.findViewById(R.id.subkey_item_details);
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TextView vKeyExpiry = (TextView) view.findViewById(R.id.subkey_item_expiry);
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ImageView vCertifyIcon = (ImageView) view.findViewById(R.id.subkey_item_ic_certify);
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ImageView vSignIcon = (ImageView) view.findViewById(R.id.subkey_item_ic_sign);
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ImageView vEncryptIcon = (ImageView) view.findViewById(R.id.subkey_item_ic_encrypt);
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ImageView vAuthenticateIcon = (ImageView) view.findViewById(R.id.subkey_item_ic_authenticate);
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ImageView vEditImage = (ImageView) view.findViewById(R.id.subkey_item_edit_image);
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ImageView vStatus = (ImageView) view.findViewById(R.id.subkey_item_status);
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// not used:
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ImageView deleteImage = (ImageView) view.findViewById(R.id.subkey_item_delete_button);
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deleteImage.setVisibility(View.GONE);
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long keyId = cursor.getLong(INDEX_KEY_ID);
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vKeyId.setText(KeyFormattingUtils.beautifyKeyId(keyId));
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// may be set with additional "stripped" later on
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SpannableStringBuilder algorithmStr = new SpannableStringBuilder();
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algorithmStr.append(KeyFormattingUtils.getAlgorithmInfo(
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context,
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cursor.getInt(INDEX_ALGORITHM),
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cursor.getInt(INDEX_KEY_SIZE),
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cursor.getString(INDEX_KEY_CURVE_OID)
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));
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SubkeyChange change = mSkpBuilder != null ? mSkpBuilder.getSubkeyChange(keyId) : null;
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if (change != null && (change.getDummyStrip() || change.getMoveKeyToSecurityToken())) {
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if (change.getDummyStrip()) {
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algorithmStr.append(", ");
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final SpannableString boldStripped = new SpannableString(
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context.getString(R.string.key_stripped)
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);
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boldStripped.setSpan(new StyleSpan(Typeface.BOLD), 0, boldStripped.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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algorithmStr.append(boldStripped);
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}
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if (change.getMoveKeyToSecurityToken()) {
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algorithmStr.append(", ");
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final SpannableString boldDivert = new SpannableString(
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context.getString(R.string.key_divert)
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);
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boldDivert.setSpan(new StyleSpan(Typeface.BOLD), 0, boldDivert.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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algorithmStr.append(boldDivert);
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}
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} else {
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switch (SecretKeyType.fromNum(cursor.getInt(INDEX_HAS_SECRET))) {
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case GNU_DUMMY:
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algorithmStr.append(", ");
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algorithmStr.append(context.getString(R.string.key_stripped));
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break;
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case DIVERT_TO_CARD:
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algorithmStr.append(", ");
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algorithmStr.append(context.getString(R.string.key_divert));
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break;
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case PASSPHRASE_EMPTY:
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algorithmStr.append(", ");
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algorithmStr.append(context.getString(R.string.key_no_passphrase));
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break;
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case UNAVAILABLE:
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// don't show this on pub keys
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//algorithmStr += ", " + context.getString(R.string.key_unavailable);
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break;
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}
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}
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vKeyDetails.setText(algorithmStr, TextView.BufferType.SPANNABLE);
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boolean isMasterKey = cursor.getInt(INDEX_RANK) == 0;
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if (isMasterKey) {
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vKeyId.setTypeface(null, Typeface.BOLD);
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} else {
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vKeyId.setTypeface(null, Typeface.NORMAL);
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}
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// Set icons according to properties
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vCertifyIcon.setVisibility(cursor.getInt(INDEX_CAN_CERTIFY) != 0 ? View.VISIBLE : View.GONE);
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vEncryptIcon.setVisibility(cursor.getInt(INDEX_CAN_ENCRYPT) != 0 ? View.VISIBLE : View.GONE);
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vSignIcon.setVisibility(cursor.getInt(INDEX_CAN_SIGN) != 0 ? View.VISIBLE : View.GONE);
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vAuthenticateIcon.setVisibility(cursor.getInt(INDEX_CAN_AUTHENTICATE) != 0 ? View.VISIBLE : View.GONE);
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boolean isRevoked = cursor.getInt(INDEX_IS_REVOKED) > 0;
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boolean isSecure = cursor.getInt(INDEX_IS_SECURE) > 0;
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Date expiryDate = null;
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if (!cursor.isNull(INDEX_EXPIRY)) {
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expiryDate = new Date(cursor.getLong(INDEX_EXPIRY) * 1000);
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}
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// for edit key
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if (mSkpBuilder != null) {
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boolean revokeThisSubkey = (mSkpBuilder.getMutableRevokeSubKeys().contains(keyId));
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if (revokeThisSubkey) {
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if (!isRevoked) {
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isRevoked = true;
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}
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}
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SaveKeyringParcel.SubkeyChange subkeyChange = mSkpBuilder.getSubkeyChange(keyId);
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if (subkeyChange != null) {
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if (subkeyChange.getExpiry() == null || subkeyChange.getExpiry() == 0L) {
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expiryDate = null;
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} else {
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expiryDate = new Date(subkeyChange.getExpiry() * 1000);
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}
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}
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vEditImage.setVisibility(View.VISIBLE);
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} else {
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vEditImage.setVisibility(View.GONE);
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}
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boolean isExpired;
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if (expiryDate != null) {
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isExpired = expiryDate.before(new Date());
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Calendar expiryCal = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
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expiryCal.setTime(expiryDate);
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// convert from UTC to time zone of device
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expiryCal.setTimeZone(TimeZone.getDefault());
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vKeyExpiry.setText(context.getString(R.string.label_expiry) + ": "
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+ DateFormat.getDateFormat(context).format(expiryCal.getTime()));
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} else {
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isExpired = false;
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vKeyExpiry.setText(context.getString(R.string.label_expiry) + ": " + context.getString(R.string.none));
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}
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// if key is expired or revoked...
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boolean isInvalid = isRevoked || isExpired || !isSecure;
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if (isInvalid) {
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vStatus.setVisibility(View.VISIBLE);
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vCertifyIcon.setColorFilter(
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mContext.getResources().getColor(R.color.key_flag_gray),
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PorterDuff.Mode.SRC_IN);
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vSignIcon.setColorFilter(
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mContext.getResources().getColor(R.color.key_flag_gray),
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PorterDuff.Mode.SRC_IN);
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vEncryptIcon.setColorFilter(
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mContext.getResources().getColor(R.color.key_flag_gray),
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PorterDuff.Mode.SRC_IN);
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vAuthenticateIcon.setColorFilter(
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mContext.getResources().getColor(R.color.key_flag_gray),
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PorterDuff.Mode.SRC_IN);
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if (isRevoked) {
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vStatus.setImageResource(R.drawable.status_signature_revoked_cutout_24dp);
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vStatus.setColorFilter(
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mContext.getResources().getColor(R.color.key_flag_gray),
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PorterDuff.Mode.SRC_IN);
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} else if (isExpired) {
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vStatus.setImageResource(R.drawable.status_signature_expired_cutout_24dp);
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vStatus.setColorFilter(
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mContext.getResources().getColor(R.color.key_flag_gray),
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PorterDuff.Mode.SRC_IN);
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} else if (!isSecure) {
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vStatus.setImageResource(R.drawable.status_signature_invalid_cutout_24dp);
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vStatus.setColorFilter(
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mContext.getResources().getColor(R.color.key_flag_gray),
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PorterDuff.Mode.SRC_IN);
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}
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} else {
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vStatus.setVisibility(View.GONE);
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vKeyId.setTextColor(mDefaultTextColor);
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vKeyDetails.setTextColor(mDefaultTextColor);
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vKeyExpiry.setTextColor(mDefaultTextColor);
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vCertifyIcon.clearColorFilter();
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vSignIcon.clearColorFilter();
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vEncryptIcon.clearColorFilter();
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vAuthenticateIcon.clearColorFilter();
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}
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vKeyId.setEnabled(!isInvalid);
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vKeyDetails.setEnabled(!isInvalid);
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vKeyExpiry.setEnabled(!isInvalid);
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}
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@Override
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public View newView(Context context, Cursor cursor, ViewGroup parent) {
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View view = mInflater.inflate(R.layout.view_key_adv_subkey_item, null);
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if (mDefaultTextColor == null) {
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TextView keyId = (TextView) view.findViewById(R.id.subkey_item_key_id);
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mDefaultTextColor = keyId.getTextColors();
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}
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return view;
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}
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// Disable selection of items, http://stackoverflow.com/a/4075045
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@Override
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public boolean areAllItemsEnabled() {
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if (mSkpBuilder == null) {
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return false;
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} else {
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return super.areAllItemsEnabled();
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}
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}
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// Disable selection of items, http://stackoverflow.com/a/4075045
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@Override
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public boolean isEnabled(int position) {
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if (mSkpBuilder == null) {
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return false;
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} else {
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return super.isEnabled(position);
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}
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}
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/** Set this adapter into edit mode. This mode displays additional info for
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* each item from a supplied SaveKeyringParcel reference.
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*
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* Note that it is up to the caller to reload the underlying cursor after
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* updating the SaveKeyringParcel!
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*
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* @see SaveKeyringParcel
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*
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* @param builder The parcel to get info from, or null to leave edit mode.
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*/
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public void setEditMode(@Nullable SaveKeyringParcel.Builder builder) {
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mSkpBuilder = builder;
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}
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}
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