aboutsummaryrefslogtreecommitdiffstats
path: root/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/KeyEditor.java
blob: c7bd1c987005090f25b94856c85533da56b18c66 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
/*
 * Copyright (C) 2010 Thialfihar <thi@thialfihar.org>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

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.LinearLayout;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;

import com.beardedhen.androidbootstrap.BootstrapButton;

import org.spongycastle.bcpg.sig.KeyFlags;
import org.spongycastle.openpgp.PGPPublicKey;
import org.spongycastle.openpgp.PGPSecretKey;

import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
import org.sufficientlysecure.keychain.util.Choice;

import java.text.DateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.TimeZone;
import java.util.Vector;

public class KeyEditor extends LinearLayout implements Editor, OnClickListener {
    private PGPSecretKey mKey;

    private EditorListener mEditorListener = null;

    private boolean mIsMasterKey;
    BootstrapButton mDeleteButton;
    TextView mAlgorithm;
    TextView mKeyId;
    TextView mCreationDate;
    BootstrapButton mExpiryDateButton;
    GregorianCalendar mCreatedDate;
    GregorianCalendar mExpiryDate;
    GregorianCalendar 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 = (BootstrapButton) findViewById(R.id.expiry);

        mDeleteButton = (BootstrapButton) 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) {
                GregorianCalendar date = mExpiryDate;
                if (date == null) {
                    date = new GregorianCalendar(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, date.get(Calendar.YEAR), date.get(Calendar.MONTH),
                        date.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) {
                    if (dialog != null && mCreatedDate != null) {
                        dialog.getDatePicker()
                                .setMinDate(
                                        mCreatedDate.getTime().getTime() + DateUtils.DAY_IN_MILLIS);
                    } else {
                        //When created date isn't available
                        dialog.getDatePicker().setMinDate(date.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(PGPSecretKey key, boolean isMasterKey, int usage, boolean isNewKey) {
        mKey = key;

        mIsMasterKey = isMasterKey;
        if (mIsMasterKey) {
            mDeleteButton.setVisibility(View.INVISIBLE);
        }

        mAlgorithm.setText(PgpKeyHelper.getAlgorithmInfo(key));
        String keyIdStr = PgpKeyHelper.convertKeyIdToHex(key.getKeyID());
        mKeyId.setText(keyIdStr);

        Vector<Choice> choices = new Vector<Choice>();
        boolean isElGamalKey = (key.getPublicKey().getAlgorithm() == PGPPublicKey.ELGAMAL_ENCRYPT);
        boolean isDSAKey = (key.getPublicKey().getAlgorithm() == PGPPublicKey.DSA);
        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);
        }

        int selectId = 0;
        mIsNewKey = isNewKey;
        if (isNewKey) {
            mUsage = usage;
            mChkCertify.setChecked((usage & KeyFlags.CERTIFY_OTHER) == KeyFlags.CERTIFY_OTHER);
            mChkSign.setChecked((usage & KeyFlags.SIGN_DATA) == KeyFlags.SIGN_DATA);
            mChkEncrypt.setChecked(((usage & KeyFlags.ENCRYPT_COMMS) == KeyFlags.ENCRYPT_COMMS) ||
                    ((usage & KeyFlags.ENCRYPT_STORAGE) == KeyFlags.ENCRYPT_STORAGE));
            mChkAuthenticate.setChecked((usage & KeyFlags.AUTHENTICATION) == KeyFlags.AUTHENTICATION);
        } else {
            mUsage = PgpKeyHelper.getKeyUsage(key);
            mOriginalUsage = mUsage;
            if (key.isMasterKey()) {
                mChkCertify.setChecked(PgpKeyHelper.isCertificationKey(key));
            }
            mChkSign.setChecked(PgpKeyHelper.isSigningKey(key));
            mChkEncrypt.setChecked(PgpKeyHelper.isEncryptionKey(key));
            mChkAuthenticate.setChecked(PgpKeyHelper.isAuthenticationKey(key));
        }

        GregorianCalendar cal = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
        cal.setTime(PgpKeyHelper.getCreationDate(key));
        setCreatedDate(cal);
        cal = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
        Date expiryDate = PgpKeyHelper.getExpiryDate(key);
        if (expiryDate == null) {
            setExpiryDate(null);
        } else {
            cal.setTime(PgpKeyHelper.getExpiryDate(key));
            setExpiryDate(cal);
            mOriginalExpiryDate = cal;
        }

    }

    public PGPSecretKey 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(GregorianCalendar date) {
        mCreatedDate = date;
        if (date == null) {
            mCreationDate.setText(getContext().getString(R.string.none));
        } else {
            mCreationDate.setText(DateFormat.getDateInstance().format(date.getTime()));
        }
    }

    private void setExpiryDate(GregorianCalendar date) {
        mExpiryDate = date;
        if (date == null) {
            mExpiryDateButton.setText(getContext().getString(R.string.none));
        } else {
            mExpiryDateButton.setText(DateFormat.getDateInstance().format(date.getTime()));
        }
    }

    public GregorianCalendar getExpiryDate() {
        return mExpiryDate;
    }

    public int getUsage() {
        mUsage  = (mUsage & ~KeyFlags.CERTIFY_OTHER) |
            (mChkCertify.isChecked() ? KeyFlags.CERTIFY_OTHER : 0);
        mUsage  = (mUsage & ~KeyFlags.SIGN_DATA) |
            (mChkSign.isChecked() ? KeyFlags.SIGN_DATA : 0);
        mUsage  = (mUsage & ~KeyFlags.ENCRYPT_COMMS) |
            (mChkEncrypt.isChecked() ? KeyFlags.ENCRYPT_COMMS : 0);
        mUsage  = (mUsage & ~KeyFlags.ENCRYPT_STORAGE) |
            (mChkEncrypt.isChecked() ? KeyFlags.ENCRYPT_STORAGE : 0);
        mUsage  = (mUsage & ~KeyFlags.AUTHENTICATION) |
            (mChkAuthenticate.isChecked() ? KeyFlags.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));
    }
}