open-keychain/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/SubkeysAdapter.java
2018-07-27 10:54:36 +02:00

314 lines
12 KiB
Java

/*
* Copyright (C) 2017 Schürmann & Breitmoser GbR
*
* 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 java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.TimeZone;
import android.content.Context;
import android.content.res.ColorStateList;
import android.graphics.PorterDuff;
import android.graphics.Typeface;
import android.support.annotation.Nullable;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.SpannableStringBuilder;
import android.text.format.DateFormat;
import android.text.style.StyleSpan;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.model.SubKey;
import org.sufficientlysecure.keychain.service.SaveKeyringParcel;
import org.sufficientlysecure.keychain.service.SaveKeyringParcel.SubkeyChange;
import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
public class SubkeysAdapter extends BaseAdapter {
private final Context context;
private final LayoutInflater layoutInflater;
private List<SubKey> data;
private SaveKeyringParcel.Builder mSkpBuilder;
private ColorStateList mDefaultTextColor;
public SubkeysAdapter(Context context) {
this.context = context;
layoutInflater = LayoutInflater.from(context);
}
public void setData(List<SubKey> data) {
this.data = data;
notifyDataSetChanged();
}
@Override
public int getCount() {
return data != null ? data.size() : 0;
}
@Override
public SubKey getItem(int position) {
return data.get(position);
}
@Override
public long getItemId(int position) {
return data.get(position).key_id();
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view;
if (convertView != null) {
view = convertView;
} else {
view = layoutInflater.inflate(R.layout.view_key_adv_subkey_item, parent, false);
}
Date now = new Date();
if (mDefaultTextColor == null) {
TextView keyId = view.findViewById(R.id.subkey_item_key_id);
mDefaultTextColor = keyId.getTextColors();
}
TextView vKeyId = view.findViewById(R.id.subkey_item_key_id);
TextView vKeyDetails = view.findViewById(R.id.subkey_item_details);
TextView vKeyExpiry = view.findViewById(R.id.subkey_item_expiry);
ImageView vCertifyIcon = view.findViewById(R.id.subkey_item_ic_certify);
ImageView vSignIcon = view.findViewById(R.id.subkey_item_ic_sign);
ImageView vEncryptIcon = view.findViewById(R.id.subkey_item_ic_encrypt);
ImageView vAuthenticateIcon = view.findViewById(R.id.subkey_item_ic_authenticate);
ImageView vEditImage = view.findViewById(R.id.subkey_item_edit_image);
ImageView vStatus = view.findViewById(R.id.subkey_item_status);
// not used:
ImageView deleteImage = view.findViewById(R.id.subkey_item_delete_button);
deleteImage.setVisibility(View.GONE);
SubKey subKey = getItem(position);
vKeyId.setText(KeyFormattingUtils.beautifyKeyId(subKey.key_id()));
// may be set with additional "stripped" later on
SpannableStringBuilder algorithmStr = new SpannableStringBuilder();
algorithmStr.append(KeyFormattingUtils.getAlgorithmInfo(
context,
subKey.algorithm(),
subKey.key_size(),
subKey.key_curve_oid()
));
SubkeyChange change = mSkpBuilder != null ? mSkpBuilder.getSubkeyChange(subKey.key_id()) : null;
if (change != null && (change.getDummyStrip() || change.getMoveKeyToSecurityToken())) {
if (change.getDummyStrip()) {
algorithmStr.append(", ");
final SpannableString boldStripped = new SpannableString(
context.getString(R.string.key_stripped)
);
boldStripped.setSpan(new StyleSpan(Typeface.BOLD), 0, boldStripped.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
algorithmStr.append(boldStripped);
}
if (change.getMoveKeyToSecurityToken()) {
algorithmStr.append(", ");
final SpannableString boldDivert = new SpannableString(
context.getString(R.string.key_divert)
);
boldDivert.setSpan(new StyleSpan(Typeface.BOLD), 0, boldDivert.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
algorithmStr.append(boldDivert);
}
} else {
switch (subKey.has_secret()) {
case GNU_DUMMY:
algorithmStr.append(", ");
algorithmStr.append(context.getString(R.string.key_stripped));
break;
case DIVERT_TO_CARD:
algorithmStr.append(", ");
algorithmStr.append(context.getString(R.string.key_divert));
break;
case PASSPHRASE_EMPTY:
algorithmStr.append(", ");
algorithmStr.append(context.getString(R.string.key_no_passphrase));
break;
case UNAVAILABLE:
// don't show this on pub keys
//algorithmStr += ", " + context.getString(R.string.key_unavailable);
break;
}
}
vKeyDetails.setText(algorithmStr, TextView.BufferType.SPANNABLE);
boolean isMasterKey = subKey.rank() == 0;
if (isMasterKey) {
vKeyId.setTypeface(null, Typeface.BOLD);
} else {
vKeyId.setTypeface(null, Typeface.NORMAL);
}
// Set icons according to properties
vCertifyIcon.setVisibility(subKey.can_certify() ? View.VISIBLE : View.GONE);
vEncryptIcon.setVisibility(subKey.can_encrypt() ? View.VISIBLE : View.GONE);
vSignIcon.setVisibility(subKey.can_sign() ? View.VISIBLE : View.GONE);
vAuthenticateIcon.setVisibility(subKey.can_authenticate() ? View.VISIBLE : View.GONE);
boolean isRevoked = subKey.is_revoked();
Date expiryDate = null;
if (subKey.expires()) {
expiryDate = new Date(subKey.expiry() * 1000);
}
Date validFrom = new Date(subKey.validFrom() * 1000);
// for edit key
if (mSkpBuilder != null) {
boolean revokeThisSubkey = (mSkpBuilder.getMutableRevokeSubKeys().contains(subKey.key_id()));
if (revokeThisSubkey) {
if (!isRevoked) {
isRevoked = true;
}
}
SaveKeyringParcel.SubkeyChange subkeyChange = mSkpBuilder.getSubkeyChange(subKey.key_id());
if (subkeyChange != null) {
if (subkeyChange.getExpiry() == null || subkeyChange.getExpiry() == 0L) {
expiryDate = null;
} else {
expiryDate = new Date(subkeyChange.getExpiry() * 1000);
}
}
vEditImage.setVisibility(View.VISIBLE);
} else {
vEditImage.setVisibility(View.GONE);
}
boolean isNotYetValid = validFrom.after(now);
boolean isExpired = expiryDate != null && expiryDate.before(now);
if (isNotYetValid) {
Calendar validFromCal = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
validFromCal.setTime(validFrom);
// convert from UTC to time zone of device
validFromCal.setTimeZone(TimeZone.getDefault());
vKeyExpiry.setText(context.getString(R.string.label_valid_from) + ": "
+ DateFormat.getDateFormat(context).format(validFromCal.getTime()));
} else if (expiryDate != null) {
Calendar expiryCal = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
expiryCal.setTime(expiryDate);
// convert from UTC to time zone of device
expiryCal.setTimeZone(TimeZone.getDefault());
vKeyExpiry.setText(context.getString(R.string.label_expiry) + ": "
+ DateFormat.getDateFormat(context).format(expiryCal.getTime()));
} else {
vKeyExpiry.setText("");
}
// if key is expired or revoked...
boolean isInvalid = isRevoked || isExpired || isNotYetValid || !subKey.is_secure();
if (isInvalid) {
vStatus.setVisibility(View.VISIBLE);
vCertifyIcon.setColorFilter(
context.getResources().getColor(R.color.key_flag_gray),
PorterDuff.Mode.SRC_IN);
vSignIcon.setColorFilter(
context.getResources().getColor(R.color.key_flag_gray),
PorterDuff.Mode.SRC_IN);
vEncryptIcon.setColorFilter(
context.getResources().getColor(R.color.key_flag_gray),
PorterDuff.Mode.SRC_IN);
vAuthenticateIcon.setColorFilter(
context.getResources().getColor(R.color.key_flag_gray),
PorterDuff.Mode.SRC_IN);
if (isRevoked) {
vStatus.setImageResource(R.drawable.status_signature_revoked_cutout_24dp);
vStatus.setColorFilter(
context.getResources().getColor(R.color.key_flag_gray),
PorterDuff.Mode.SRC_IN);
} else if (isNotYetValid || isExpired) {
vStatus.setImageResource(R.drawable.status_signature_expired_cutout_24dp);
vStatus.setColorFilter(
context.getResources().getColor(R.color.key_flag_gray),
PorterDuff.Mode.SRC_IN);
} else if (!subKey.is_secure()) {
vStatus.setImageResource(R.drawable.status_signature_invalid_cutout_24dp);
vStatus.setColorFilter(
context.getResources().getColor(R.color.key_flag_gray),
PorterDuff.Mode.SRC_IN);
}
} else {
vStatus.setVisibility(View.GONE);
vKeyId.setTextColor(mDefaultTextColor);
vKeyDetails.setTextColor(mDefaultTextColor);
vKeyExpiry.setTextColor(mDefaultTextColor);
vCertifyIcon.clearColorFilter();
vSignIcon.clearColorFilter();
vEncryptIcon.clearColorFilter();
vAuthenticateIcon.clearColorFilter();
}
vKeyId.setEnabled(!isInvalid);
vKeyDetails.setEnabled(!isInvalid);
vKeyExpiry.setEnabled(!isInvalid);
return view;
}
// Disable selection of items, http://stackoverflow.com/a/4075045
@Override
public boolean areAllItemsEnabled() {
return mSkpBuilder != null && super.areAllItemsEnabled();
}
// Disable selection of items, http://stackoverflow.com/a/4075045
@Override
public boolean isEnabled(int position) {
return mSkpBuilder != null && super.isEnabled(position);
}
/** Set this adapter into edit mode. This mode displays additional info for
* each item from a supplied SaveKeyringParcel reference.
*
* Note that it is up to the caller to reload the underlying cursor after
* updating the SaveKeyringParcel!
*
* @see SaveKeyringParcel
*
* @param builder The parcel to get info from, or null to leave edit mode.
*/
public void setEditMode(@Nullable SaveKeyringParcel.Builder builder) {
mSkpBuilder = builder;
notifyDataSetChanged();
}
}