open-keychain/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/KeyEditor.java
2014-06-30 19:09:13 +02:00

381 lines
14 KiB
Java

/*
* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
* Copyright (C) 2010-2014 Thialfihar <thi@thialfihar.org>
*
* 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.widget;
import android.annotation.TargetApi;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.text.format.DateUtils;
import android.util.AttributeSet;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.DatePicker;
import android.widget.ImageButton;
import android.widget.LinearLayout;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;
import android.widget.Button;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
import org.sufficientlysecure.keychain.pgp.UncachedSecretKey;
import java.text.DateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.TimeZone;
public class KeyEditor extends LinearLayout implements Editor, OnClickListener {
private UncachedSecretKey mKey;
private EditorListener mEditorListener = null;
private boolean mIsMasterKey;
ImageButton mDeleteButton;
TextView mAlgorithm;
TextView mKeyId;
TextView mCreationDate;
Button mExpiryDateButton;
Calendar mCreatedDate;
Calendar mExpiryDate;
Calendar mOriginalExpiryDate = null;
CheckBox mChkCertify;
CheckBox mChkSign;
CheckBox mChkEncrypt;
CheckBox mChkAuthenticate;
int mUsage;
int mOriginalUsage;
boolean mIsNewKey;
private CheckBox.OnCheckedChangeListener mCheckChanged = new CheckBox.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (mEditorListener != null) {
mEditorListener.onEdited();
}
}
};
private int mDatePickerResultCount = 0;
private DatePickerDialog.OnDateSetListener mExpiryDateSetListener =
new DatePickerDialog.OnDateSetListener() {
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
// Note: Ignore results after the first one - android sends multiples.
if (mDatePickerResultCount++ == 0) {
GregorianCalendar date = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
date.set(year, monthOfYear, dayOfMonth);
if (mOriginalExpiryDate != null) {
long numDays = (date.getTimeInMillis() / 86400000) -
(mOriginalExpiryDate.getTimeInMillis() / 86400000);
if (numDays == 0) {
setExpiryDate(mOriginalExpiryDate);
} else {
setExpiryDate(date);
}
} else {
setExpiryDate(date);
}
if (mEditorListener != null) {
mEditorListener.onEdited();
}
}
}
};
public KeyEditor(Context context) {
super(context);
}
public KeyEditor(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void onFinishInflate() {
setDrawingCacheEnabled(true);
setAlwaysDrawnWithCacheEnabled(true);
mAlgorithm = (TextView) findViewById(R.id.algorithm);
mKeyId = (TextView) findViewById(R.id.keyId);
mCreationDate = (TextView) findViewById(R.id.creation);
mExpiryDateButton = (Button) findViewById(R.id.expiry);
mDeleteButton = (ImageButton) findViewById(R.id.delete);
mDeleteButton.setOnClickListener(this);
mChkCertify = (CheckBox) findViewById(R.id.chkCertify);
mChkCertify.setOnCheckedChangeListener(mCheckChanged);
mChkSign = (CheckBox) findViewById(R.id.chkSign);
mChkSign.setOnCheckedChangeListener(mCheckChanged);
mChkEncrypt = (CheckBox) findViewById(R.id.chkEncrypt);
mChkEncrypt.setOnCheckedChangeListener(mCheckChanged);
mChkAuthenticate = (CheckBox) findViewById(R.id.chkAuthenticate);
mChkAuthenticate.setOnCheckedChangeListener(mCheckChanged);
setExpiryDate(null);
mExpiryDateButton.setOnClickListener(new OnClickListener() {
@TargetApi(11)
public void onClick(View v) {
Calendar expiryDate = mExpiryDate;
if (expiryDate == null) {
expiryDate = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
}
/*
* Using custom DatePickerDialog which overrides the setTitle because
* the DatePickerDialog title is buggy (unix warparound bug).
* See: https://code.google.com/p/android/issues/detail?id=49066
*/
DatePickerDialog dialog = new ExpiryDatePickerDialog(getContext(),
mExpiryDateSetListener, expiryDate.get(Calendar.YEAR), expiryDate.get(Calendar.MONTH),
expiryDate.get(Calendar.DAY_OF_MONTH));
mDatePickerResultCount = 0;
dialog.setCancelable(true);
dialog.setButton(Dialog.BUTTON_NEGATIVE,
getContext().getString(R.string.btn_no_date),
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// Note: Ignore results after the first one - android sends multiples.
if (mDatePickerResultCount++ == 0) {
setExpiryDate(null);
if (mEditorListener != null) {
mEditorListener.onEdited();
}
}
}
});
// setCalendarViewShown() is supported from API 11 onwards.
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB) {
// Hide calendarView in tablets because of the unix warparound bug.
dialog.getDatePicker().setCalendarViewShown(false);
}
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB) {
// will crash with IllegalArgumentException if we set a min date
// that is not before expiry
if (mCreatedDate != null && mCreatedDate.before(expiryDate)) {
dialog.getDatePicker()
.setMinDate(
mCreatedDate.getTime().getTime() + DateUtils.DAY_IN_MILLIS);
} else {
// When created date isn't available
dialog.getDatePicker().setMinDate(expiryDate.getTime().getTime() + DateUtils.DAY_IN_MILLIS);
}
}
dialog.show();
}
});
super.onFinishInflate();
}
public void setCanBeEdited(boolean canBeEdited) {
if (!canBeEdited) {
mDeleteButton.setVisibility(View.INVISIBLE);
mExpiryDateButton.setEnabled(false);
mChkSign.setEnabled(false); //certify is always disabled
mChkEncrypt.setEnabled(false);
mChkAuthenticate.setEnabled(false);
}
}
public void setValue(UncachedSecretKey key, boolean isMasterKey, int usage, boolean isNewKey) {
mKey = key;
mIsMasterKey = isMasterKey;
if (mIsMasterKey) {
mDeleteButton.setVisibility(View.INVISIBLE);
}
mAlgorithm.setText(PgpKeyHelper.getAlgorithmInfo(getContext(), key.getAlgorithm()));
String keyIdStr = PgpKeyHelper.convertKeyIdToHex(key.getKeyId());
mKeyId.setText(keyIdStr);
boolean isElGamalKey = (key.isElGamalEncrypt());
boolean isDSAKey = (key.isDSA());
if (isElGamalKey) {
mChkSign.setVisibility(View.INVISIBLE);
TableLayout table = (TableLayout) findViewById(R.id.table_keylayout);
TableRow row = (TableRow) findViewById(R.id.row_sign);
table.removeView(row);
}
if (isDSAKey) {
mChkEncrypt.setVisibility(View.INVISIBLE);
TableLayout table = (TableLayout) findViewById(R.id.table_keylayout);
TableRow row = (TableRow) findViewById(R.id.row_encrypt);
table.removeView(row);
}
if (!mIsMasterKey) {
mChkCertify.setVisibility(View.INVISIBLE);
TableLayout table = (TableLayout) findViewById(R.id.table_keylayout);
TableRow row = (TableRow) findViewById(R.id.row_certify);
table.removeView(row);
} else {
TextView mLabelUsage2 = (TextView) findViewById(R.id.label_usage2);
mLabelUsage2.setVisibility(View.INVISIBLE);
}
mIsNewKey = isNewKey;
if (isNewKey) {
mUsage = usage;
mChkCertify.setChecked(
(usage & UncachedSecretKey.CERTIFY_OTHER) == UncachedSecretKey.CERTIFY_OTHER);
mChkSign.setChecked(
(usage & UncachedSecretKey.SIGN_DATA) == UncachedSecretKey.SIGN_DATA);
mChkEncrypt.setChecked(
((usage & UncachedSecretKey.ENCRYPT_COMMS) == UncachedSecretKey.ENCRYPT_COMMS) ||
((usage & UncachedSecretKey.ENCRYPT_STORAGE) == UncachedSecretKey.ENCRYPT_STORAGE));
mChkAuthenticate.setChecked(
(usage & UncachedSecretKey.AUTHENTICATION) == UncachedSecretKey.AUTHENTICATION);
} else {
mUsage = key.getKeyUsage();
mOriginalUsage = mUsage;
if (key.isMasterKey()) {
mChkCertify.setChecked(key.canCertify());
}
mChkSign.setChecked(key.canSign());
mChkEncrypt.setChecked(key.canEncrypt());
mChkAuthenticate.setChecked(key.canAuthenticate());
}
{
Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
cal.setTime(key.getCreationTime());
setCreatedDate(cal);
}
Date expiryDate = key.getExpiryTime();
if (expiryDate == null) {
setExpiryDate(null);
} else {
Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
cal.setTime(expiryDate);
setExpiryDate(cal);
mOriginalExpiryDate = cal;
}
}
public UncachedSecretKey getValue() {
return mKey;
}
public void onClick(View v) {
final ViewGroup parent = (ViewGroup) getParent();
if (v == mDeleteButton) {
parent.removeView(this);
if (mEditorListener != null) {
mEditorListener.onDeleted(this, mIsNewKey);
}
}
}
public void setEditorListener(EditorListener listener) {
mEditorListener = listener;
}
private void setCreatedDate(Calendar date) {
mCreatedDate = date;
if (date == null) {
mCreationDate.setText(getContext().getString(R.string.none));
} else {
mCreationDate.setText(DateFormat.getDateInstance().format(date.getTime()));
}
}
private void setExpiryDate(Calendar date) {
mExpiryDate = date;
if (date == null) {
mExpiryDateButton.setText(getContext().getString(R.string.none));
} else {
mExpiryDateButton.setText(DateFormat.getDateInstance().format(date.getTime()));
}
}
public Calendar getExpiryDate() {
return mExpiryDate;
}
public int getUsage() {
mUsage = (mUsage & ~UncachedSecretKey.CERTIFY_OTHER) |
(mChkCertify.isChecked() ? UncachedSecretKey.CERTIFY_OTHER : 0);
mUsage = (mUsage & ~UncachedSecretKey.SIGN_DATA) |
(mChkSign.isChecked() ? UncachedSecretKey.SIGN_DATA : 0);
mUsage = (mUsage & ~UncachedSecretKey.ENCRYPT_COMMS) |
(mChkEncrypt.isChecked() ? UncachedSecretKey.ENCRYPT_COMMS : 0);
mUsage = (mUsage & ~UncachedSecretKey.ENCRYPT_STORAGE) |
(mChkEncrypt.isChecked() ? UncachedSecretKey.ENCRYPT_STORAGE : 0);
mUsage = (mUsage & ~UncachedSecretKey.AUTHENTICATION) |
(mChkAuthenticate.isChecked() ? UncachedSecretKey.AUTHENTICATION : 0);
return mUsage;
}
public boolean needsSaving() {
if (mIsNewKey) {
return true;
}
boolean retval = (getUsage() != mOriginalUsage);
boolean dateChanged;
boolean mOEDNull = (mOriginalExpiryDate == null);
boolean mEDNull = (mExpiryDate == null);
if (mOEDNull != mEDNull) {
dateChanged = true;
} else {
if (mOEDNull) {
//both null, no change
dateChanged = false;
} else {
dateChanged = ((mExpiryDate.compareTo(mOriginalExpiryDate)) != 0);
}
}
retval |= dateChanged;
return retval;
}
public boolean getIsNewKey() {
return mIsNewKey;
}
}
class ExpiryDatePickerDialog extends DatePickerDialog {
public ExpiryDatePickerDialog(Context context, OnDateSetListener callBack,
int year, int monthOfYear, int dayOfMonth) {
super(context, callBack, year, monthOfYear, dayOfMonth);
}
//Set permanent title.
public void setTitle(CharSequence title) {
super.setTitle(getContext().getString(R.string.expiry_date_dialog_title));
}
}