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/*
* 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.adapter;
import android.content.Context;
import android.content.res.ColorStateList;
import android.database.Cursor;
import android.graphics.Typeface;
import android.support.v4.widget.CursorAdapter;
import android.text.format.DateFormat;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.helper.OtherHelper;
import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
import org.sufficientlysecure.keychain.service.SaveKeyringParcel;
import java.util.Date;
public class SubkeysAdapter extends CursorAdapter {
private LayoutInflater mInflater;
private SaveKeyringParcel mSaveKeyringParcel;
private boolean hasAnySecret;
private ColorStateList mDefaultTextColor;
public static final String[] SUBKEYS_PROJECTION = new String[]{
Keys._ID,
Keys.KEY_ID,
Keys.RANK,
Keys.ALGORITHM,
Keys.KEY_SIZE,
Keys.HAS_SECRET,
Keys.CAN_CERTIFY,
Keys.CAN_ENCRYPT,
Keys.CAN_SIGN,
Keys.IS_REVOKED,
Keys.CREATION,
Keys.EXPIRY,
Keys.FINGERPRINT
};
private static final int INDEX_ID = 0;
private static final int INDEX_KEY_ID = 1;
private static final int INDEX_RANK = 2;
private static final int INDEX_ALGORITHM = 3;
private static final int INDEX_KEY_SIZE = 4;
private static final int INDEX_HAS_SECRET = 5;
private static final int INDEX_CAN_CERTIFY = 6;
private static final int INDEX_CAN_ENCRYPT = 7;
private static final int INDEX_CAN_SIGN = 8;
private static final int INDEX_IS_REVOKED = 9;
private static final int INDEX_CREATION = 10;
private static final int INDEX_EXPIRY = 11;
private static final int INDEX_FINGERPRINT = 12;
public SubkeysAdapter(Context context, Cursor c, int flags,
SaveKeyringParcel saveKeyringParcel) {
super(context, c, flags);
mInflater = LayoutInflater.from(context);
mSaveKeyringParcel = saveKeyringParcel;
}
public SubkeysAdapter(Context context, Cursor c, int flags) {
this(context, c, flags, null);
}
public long getKeyId(int position) {
mCursor.moveToPosition(position);
return mCursor.getLong(INDEX_KEY_ID);
}
public long getCreationDate(int position) {
mCursor.moveToPosition(position);
return mCursor.getLong(INDEX_CREATION);
}
public Long getExpiryDate(int position) {
mCursor.moveToPosition(position);
if (mCursor.isNull(INDEX_EXPIRY)) {
return null;
} else {
return mCursor.getLong(INDEX_EXPIRY);
}
}
@Override
public Cursor swapCursor(Cursor newCursor) {
hasAnySecret = false;
if (newCursor != null && newCursor.moveToFirst()) {
do {
if (newCursor.getInt(INDEX_HAS_SECRET) != 0) {
hasAnySecret = true;
break;
}
} while (newCursor.moveToNext());
}
return super.swapCursor(newCursor);
}
@Override
public void bindView(View view, Context context, Cursor cursor) {
TextView vKeyId = (TextView) view.findViewById(R.id.subkey_item_key_id);
TextView vKeyDetails = (TextView) view.findViewById(R.id.subkey_item_details);
TextView vKeyExpiry = (TextView) view.findViewById(R.id.subkey_item_expiry);
ImageView vCertifyIcon = (ImageView) view.findViewById(R.id.subkey_item_ic_certify);
ImageView vEncryptIcon = (ImageView) view.findViewById(R.id.subkey_item_ic_encrypt);
ImageView vSignIcon = (ImageView) view.findViewById(R.id.subkey_item_ic_sign);
ImageView vRevokedIcon = (ImageView) view.findViewById(R.id.subkey_item_ic_revoked);
ImageView vEditImage = (ImageView) view.findViewById(R.id.subkey_item_edit_image);
// not used:
ImageView deleteImage = (ImageView) view.findViewById(R.id.subkey_item_delete_button);
deleteImage.setVisibility(View.GONE);
long keyId = cursor.getLong(INDEX_KEY_ID);
String keyIdStr = PgpKeyHelper.convertKeyIdToHex(keyId);
String algorithmStr = PgpKeyHelper.getAlgorithmInfo(
context,
cursor.getInt(INDEX_ALGORITHM),
cursor.getInt(INDEX_KEY_SIZE)
);
vKeyId.setText(keyIdStr);
// may be set with additional "stripped" later on
if (hasAnySecret && cursor.getInt(INDEX_HAS_SECRET) == 0) {
vKeyDetails.setText(algorithmStr + ", " +
context.getString(R.string.key_stripped));
} else {
vKeyDetails.setText(algorithmStr);
}
boolean isMasterKey = cursor.getInt(INDEX_RANK) == 0;
if (isMasterKey) {
vKeyId.setTypeface(null, Typeface.BOLD);
} else {
vKeyId.setTypeface(null, Typeface.NORMAL);
}
// Set icons according to properties
vCertifyIcon.setVisibility(cursor.getInt(INDEX_CAN_CERTIFY) != 0 ? View.VISIBLE : View.GONE);
vEncryptIcon.setVisibility(cursor.getInt(INDEX_CAN_ENCRYPT) != 0 ? View.VISIBLE : View.GONE);
vSignIcon.setVisibility(cursor.getInt(INDEX_CAN_SIGN) != 0 ? View.VISIBLE : View.GONE);
// TODO: missing icon for authenticate
boolean isRevoked = cursor.getInt(INDEX_IS_REVOKED) > 0;
Date expiryDate = null;
if (!cursor.isNull(INDEX_EXPIRY)) {
expiryDate = new Date(cursor.getLong(INDEX_EXPIRY) * 1000);
}
// for edit key
if (mSaveKeyringParcel != null) {
boolean revokeThisSubkey = (mSaveKeyringParcel.mRevokeSubKeys.contains(keyId));
if (revokeThisSubkey) {
if (!isRevoked) {
isRevoked = true;
}
}
SaveKeyringParcel.SubkeyChange subkeyChange = mSaveKeyringParcel.getSubkeyChange(keyId);
if (subkeyChange != null) {
if (subkeyChange.mExpiry == null) {
expiryDate = null;
} else {
expiryDate = new Date(subkeyChange.mExpiry * 1000);
}
}
vEditImage.setVisibility(View.VISIBLE);
} else {
vEditImage.setVisibility(View.GONE);
}
boolean isExpired;
if (expiryDate != null) {
isExpired = expiryDate.before(new Date());
vKeyExpiry.setText(context.getString(R.string.label_expiry) + ": "
+ DateFormat.getDateFormat(context).format(expiryDate));
} else {
isExpired = false;
vKeyExpiry.setText(context.getString(R.string.label_expiry) + ": " + context.getString(R.string.none));
}
if (isRevoked) {
vRevokedIcon.setVisibility(View.VISIBLE);
} else {
vKeyId.setTextColor(mDefaultTextColor);
vKeyDetails.setTextColor(mDefaultTextColor);
vKeyExpiry.setTextColor(mDefaultTextColor);
vRevokedIcon.setVisibility(View.GONE);
}
// if key is expired or revoked, strike through text
boolean isInvalid = isRevoked || isExpired;
if (isInvalid) {
vKeyId.setText(OtherHelper.strikeOutText(vKeyId.getText()));
vKeyDetails.setText(OtherHelper.strikeOutText(vKeyDetails.getText()));
vKeyExpiry.setText(OtherHelper.strikeOutText(vKeyExpiry.getText()));
}
vKeyId.setEnabled(!isInvalid);
vKeyDetails.setEnabled(!isInvalid);
vKeyExpiry.setEnabled(!isInvalid);
}
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
View view = mInflater.inflate(R.layout.view_key_subkey_item, null);
if (mDefaultTextColor == null) {
TextView keyId = (TextView) view.findViewById(R.id.subkey_item_key_id);
mDefaultTextColor = keyId.getTextColors();
}
return view;
}
// Disable selection of items, http://stackoverflow.com/a/4075045
@Override
public boolean areAllItemsEnabled() {
if (mSaveKeyringParcel == null) {
return false;
} else {
return super.areAllItemsEnabled();
}
}
// Disable selection of items, http://stackoverflow.com/a/4075045
@Override
public boolean isEnabled(int position) {
if (mSaveKeyringParcel == null) {
return false;
} else {
return super.isEnabled(position);
}
}
}
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