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
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
|
/*
* Copyright (C) 2012-2013 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.provider;
import java.security.SignatureException;
import org.spongycastle.bcpg.ArmoredOutputStream;
import android.content.ContentProviderOperation;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Context;
import android.content.OperationApplicationException;
import android.database.Cursor;
import android.database.DatabaseUtils;
import android.net.Uri;
import android.os.RemoteException;
import org.spongycastle.bcpg.SignatureSubpacketTags;
import org.spongycastle.bcpg.sig.SignatureExpirationTime;
import org.spongycastle.openpgp.PGPException;
import org.spongycastle.openpgp.operator.jcajce.JcaPGPContentVerifierBuilderProvider;
import org.spongycastle.openpgp.PGPKeyRing;
import org.spongycastle.openpgp.PGPPublicKey;
import org.spongycastle.openpgp.PGPPublicKeyRing;
import org.spongycastle.openpgp.PGPSecretKeyRing;
import org.spongycastle.openpgp.PGPSignature;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.pgp.PgpConversionHelper;
import org.sufficientlysecure.keychain.pgp.PgpHelper;
import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
import org.sufficientlysecure.keychain.provider.KeychainContract.ApiApps;
import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRingData;
import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
import org.sufficientlysecure.keychain.provider.KeychainContract.Certs;
import org.sufficientlysecure.keychain.remote.AccountSettings;
import org.sufficientlysecure.keychain.remote.AppSettings;
import org.sufficientlysecure.keychain.util.IterableIterator;
import org.sufficientlysecure.keychain.util.Log;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.HashSet;
import java.util.Set;
public class ProviderHelper {
// If we ever switch to api level 11, we can ditch this whole mess!
public static final int FIELD_TYPE_NULL = 1;
// this is called integer to stay coherent with the constants in Cursor (api level 11)
public static final int FIELD_TYPE_INTEGER = 2;
public static final int FIELD_TYPE_FLOAT = 3;
public static final int FIELD_TYPE_STRING = 4;
public static final int FIELD_TYPE_BLOB = 5;
public static Object getGenericData(Context context, Uri uri, String column, int type) {
return getGenericData(context, uri, new String[] { column }, new int[] { type }).get(column);
}
public static HashMap<String,Object> getGenericData(Context context, Uri uri, String[] proj, int[] types) {
Cursor cursor = context.getContentResolver().query(uri, proj, null, null, null);
HashMap<String, Object> result = new HashMap<String, Object>(proj.length);
if (cursor != null && cursor.moveToFirst()) {
int pos = 0;
for(String p : proj) {
switch(types[pos]) {
case FIELD_TYPE_NULL: result.put(p, cursor.isNull(pos)); break;
case FIELD_TYPE_INTEGER: result.put(p, cursor.getLong(pos)); break;
case FIELD_TYPE_FLOAT: result.put(p, cursor.getFloat(pos)); break;
case FIELD_TYPE_STRING: result.put(p, cursor.getString(pos)); break;
case FIELD_TYPE_BLOB: result.put(p, cursor.getBlob(pos)); break;
}
pos += 1;
}
}
if (cursor != null) {
cursor.close();
}
return result;
}
public static Object getUnifiedData(Context context, long masterKeyId, String column, int type) {
return getUnifiedData(context, masterKeyId, new String[] { column }, new int[] { type }).get(column);
}
public static HashMap<String,Object> getUnifiedData(Context context, long masterKeyId, String[] proj, int[] types) {
return getGenericData(context, KeyRings.buildUnifiedKeyRingUri(Long.toString(masterKeyId)), proj, types);
}
public static long getMasterKeyId(Context context, Uri queryUri) {
// try extracting from the uri first
String firstSegment = queryUri.getPathSegments().get(1);
if(!firstSegment.equals("find")) try {
return Long.parseLong(firstSegment);
} catch(NumberFormatException e) {
// didn't work? oh well.
Log.d(Constants.TAG, "Couldn't get masterKeyId from URI, querying...");
}
Object data = getGenericData(context, queryUri, KeyRings.MASTER_KEY_ID, FIELD_TYPE_INTEGER);
if(data != null)
return (Long) data;
// TODO better error handling?
return 0L;
}
public static Map<Long, PGPKeyRing> getPGPKeyRings(Context context, Uri queryUri) {
Cursor cursor = context.getContentResolver().query(queryUri,
new String[]{KeyRingData.MASTER_KEY_ID, KeyRingData.KEY_RING_DATA },
null, null, null);
Map<Long, PGPKeyRing> result = new HashMap<Long, PGPKeyRing>(cursor.getCount());
if (cursor != null && cursor.moveToFirst()) do {
long masterKeyId = cursor.getLong(0);
byte[] data = cursor.getBlob(1);
if (data != null) {
result.put(masterKeyId, PgpConversionHelper.BytesToPGPKeyRing(data));
}
} while(cursor.moveToNext());
if (cursor != null) {
cursor.close();
}
return result;
}
public static PGPKeyRing getPGPKeyRing(Context context, Uri queryUri) {
Map<Long, PGPKeyRing> result = getPGPKeyRings(context, queryUri);
if(result.isEmpty())
return null;
return result.values().iterator().next();
}
public static PGPPublicKeyRing getPGPPublicKeyRingWithKeyId(Context context, long keyId) {
Uri uri = KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(Long.toString(keyId));
long masterKeyId = getMasterKeyId(context, uri);
if(masterKeyId != 0)
return getPGPPublicKeyRing(context, masterKeyId);
return null;
}
public static PGPSecretKeyRing getPGPSecretKeyRingWithKeyId(Context context, long keyId) {
Uri uri = KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(Long.toString(keyId));
long masterKeyId = getMasterKeyId(context, uri);
if(masterKeyId != 0)
return getPGPSecretKeyRing(context, masterKeyId);
return null;
}
/**
* Retrieves the actual PGPPublicKeyRing object from the database blob based on the masterKeyId
*/
public static PGPPublicKeyRing getPGPPublicKeyRing(Context context,
long masterKeyId) {
Uri queryUri = KeyRingData.buildPublicKeyRingUri(Long.toString(masterKeyId));
return (PGPPublicKeyRing) getPGPKeyRing(context, queryUri);
}
/**
* Retrieves the actual PGPSecretKeyRing object from the database blob based on the maserKeyId
*/
public static PGPSecretKeyRing getPGPSecretKeyRing(Context context,
long masterKeyId) {
Uri queryUri = KeyRingData.buildSecretKeyRingUri(Long.toString(masterKeyId));
return (PGPSecretKeyRing) getPGPKeyRing(context, queryUri);
}
/**
* Saves PGPPublicKeyRing with its keys and userIds in DB
*/
@SuppressWarnings("unchecked")
public static void saveKeyRing(Context context, PGPPublicKeyRing keyRing) throws IOException {
PGPPublicKey masterKey = keyRing.getPublicKey();
long masterKeyId = masterKey.getKeyID();
// IF there is a secret key, preserve it!
PGPSecretKeyRing secretRing = ProviderHelper.getPGPSecretKeyRing(context, masterKeyId);
// delete old version of this keyRing, which also deletes all keys and userIds on cascade
try {
context.getContentResolver().delete(KeyRingData.buildPublicKeyRingUri(Long.toString(masterKeyId)), null, null);
} catch (UnsupportedOperationException e) {
Log.e(Constants.TAG, "Key could not be deleted! Maybe we are creating a new one!", e);
}
ContentValues values = new ContentValues();
// use exactly the same _ID again to replace key in-place.
// NOTE: If we would not use the same _ID again,
// getting back to the ViewKeyActivity would result in Nullpointer,
// because the currently loaded key would be gone from the database
values.put(KeyRingData.MASTER_KEY_ID, masterKeyId);
values.put(KeyRingData.KEY_RING_DATA, keyRing.getEncoded());
// insert new version of this keyRing
Uri uri = KeyRingData.buildPublicKeyRingUri(Long.toString(masterKeyId));
Uri insertedUri = context.getContentResolver().insert(uri, values);
// save all keys and userIds included in keyRing object in database
ArrayList<ContentProviderOperation> operations = new ArrayList<ContentProviderOperation>();
int rank = 0;
for (PGPPublicKey key : new IterableIterator<PGPPublicKey>(keyRing.getPublicKeys())) {
operations.add(buildPublicKeyOperations(context, masterKeyId, key, rank));
++rank;
}
// get a list of owned secret keys, for verification filtering
Map<Long, PGPKeyRing> allKeyRings = getPGPKeyRings(context, KeyRingData.buildSecretKeyRingUri());
// special case: available secret keys verify themselves!
if(secretRing != null)
allKeyRings.put(secretRing.getSecretKey().getKeyID(), secretRing);
// classify and order user ids. primary are moved to the front, revoked to the back,
// otherwise the order in the keyfile is preserved.
List<UserIdItem> uids = new ArrayList<UserIdItem>();
for (String userId : new IterableIterator<String>(masterKey.getUserIDs())) {
UserIdItem item = new UserIdItem();
uids.add(item);
item.userId = userId;
// look through signatures for this specific key
for (PGPSignature cert : new IterableIterator<PGPSignature>(
masterKey.getSignaturesForID(userId))) {
long certId = cert.getKeyID();
try {
// self signature
if(certId == masterKeyId) {
cert.init(new JcaPGPContentVerifierBuilderProvider().setProvider(
Constants.BOUNCY_CASTLE_PROVIDER_NAME), masterKey);
if(!cert.verifyCertification(userId, masterKey)) {
// not verified?! dang! TODO notify user? this is kinda serious...
Log.e(Constants.TAG, "Could not verify self signature for " + userId + "!");
continue;
}
// is this the first, or a more recent certificate?
if(item.selfCert == null ||
item.selfCert.getCreationTime().before(cert.getCreationTime())) {
item.selfCert = cert;
item.isPrimary = cert.getHashedSubPackets().isPrimaryUserID();
item.isRevoked =
cert.getSignatureType() == PGPSignature.CERTIFICATION_REVOCATION;
}
}
// verify signatures from known private keys
if(allKeyRings.containsKey(certId)) {
// mark them as verified
cert.init(new JcaPGPContentVerifierBuilderProvider().setProvider(
Constants.BOUNCY_CASTLE_PROVIDER_NAME),
allKeyRings.get(certId).getPublicKey());
if(cert.verifyCertification(userId, masterKey)) {
item.trustedCerts.add(cert);
}
}
} catch(SignatureException e) {
Log.e(Constants.TAG, "Signature verification failed! "
+ PgpKeyHelper.convertKeyIdToHex(masterKey.getKeyID())
+ " from "
+ PgpKeyHelper.convertKeyIdToHex(cert.getKeyID()), e);
} catch(PGPException e) {
Log.e(Constants.TAG, "Signature verification failed! "
+ PgpKeyHelper.convertKeyIdToHex(masterKey.getKeyID())
+ " from "
+ PgpKeyHelper.convertKeyIdToHex(cert.getKeyID()), e);
}
}
}
// primary before regular before revoked (see UserIdItem.compareTo)
// this is a stable sort, so the order of keys is otherwise preserved.
Collections.sort(uids);
// iterate and put into db
for(int userIdRank = 0; userIdRank < uids.size(); userIdRank++) {
UserIdItem item = uids.get(userIdRank);
operations.add(buildUserIdOperations(masterKeyId, item, userIdRank));
// no self cert is bad, but allowed by the rfc...
if(item.selfCert != null) {
operations.add(buildCertOperations(
masterKeyId, userIdRank, item.selfCert, Certs.VERIFIED_SELF));
}
// don't bother with trusted certs if the uid is revoked, anyways
if(item.isRevoked) {
continue;
}
for(int i = 0; i < item.trustedCerts.size(); i++) {
operations.add(buildCertOperations(
masterKeyId, userIdRank, item.trustedCerts.get(i), Certs.VERIFIED_SECRET));
}
}
try {
context.getContentResolver().applyBatch(KeychainContract.CONTENT_AUTHORITY, operations);
} catch (RemoteException e) {
Log.e(Constants.TAG, "applyBatch failed!", e);
} catch (OperationApplicationException e) {
Log.e(Constants.TAG, "applyBatch failed!", e);
}
// Save the saved keyring (if any)
if(secretRing != null) {
saveKeyRing(context, secretRing);
}
}
private static class UserIdItem implements Comparable<UserIdItem> {
String userId;
boolean isPrimary = false;
boolean isRevoked = false;
PGPSignature selfCert;
List<PGPSignature> trustedCerts = new ArrayList<PGPSignature>();
@Override
public int compareTo(UserIdItem o) {
// if one key is primary but the other isn't, the primary one always comes first
if(isPrimary != o.isPrimary)
return isPrimary ? -1 : 1;
// revoked keys always come last!
if(isRevoked != o.isRevoked)
return isRevoked ? 1 : -1;
return 0;
}
}
/**
* Saves a PGPSecretKeyRing in the DB. This will only work if a corresponding public keyring
* is already in the database!
*/
@SuppressWarnings("unchecked")
public static void saveKeyRing(Context context, PGPSecretKeyRing keyRing) throws IOException {
long masterKeyId = keyRing.getPublicKey().getKeyID();
// save secret keyring
ContentValues values = new ContentValues();
values.put(KeyRingData.MASTER_KEY_ID, masterKeyId);
values.put(KeyRingData.KEY_RING_DATA, keyRing.getEncoded());
// insert new version of this keyRing
Uri uri = KeyRingData.buildSecretKeyRingUri(Long.toString(masterKeyId));
context.getContentResolver().insert(uri, values);
}
/**
* Saves (or updates) a pair of public and secret KeyRings in the database
*/
@SuppressWarnings("unchecked")
public static void saveKeyRing(Context context, PGPPublicKeyRing pubRing, PGPSecretKeyRing privRing) throws IOException {
long masterKeyId = pubRing.getPublicKey().getKeyID();
// delete secret keyring (so it isn't unnecessarily saved by public-saveKeyRing below)
context.getContentResolver().delete(KeyRingData.buildSecretKeyRingUri(Long.toString(masterKeyId)), null, null);
// save public keyring
saveKeyRing(context, pubRing);
saveKeyRing(context, privRing);
}
/**
* Build ContentProviderOperation to add PGPPublicKey to database corresponding to a keyRing
*/
private static ContentProviderOperation buildPublicKeyOperations(Context context,
long masterKeyId, PGPPublicKey key, int rank) throws IOException {
ContentValues values = new ContentValues();
values.put(Keys.MASTER_KEY_ID, masterKeyId);
values.put(Keys.RANK, rank);
values.put(Keys.KEY_ID, key.getKeyID());
values.put(Keys.KEY_SIZE, key.getBitStrength());
values.put(Keys.ALGORITHM, key.getAlgorithm());
values.put(Keys.FINGERPRINT, key.getFingerprint());
values.put(Keys.CAN_CERTIFY, (PgpKeyHelper.isCertificationKey(key)));
values.put(Keys.CAN_SIGN, (PgpKeyHelper.isSigningKey(key)));
values.put(Keys.CAN_ENCRYPT, PgpKeyHelper.isEncryptionKey(key));
values.put(Keys.IS_REVOKED, key.isRevoked());
values.put(Keys.CREATION, PgpKeyHelper.getCreationDate(key).getTime() / 1000);
Date expiryDate = PgpKeyHelper.getExpiryDate(key);
if (expiryDate != null) {
values.put(Keys.EXPIRY, expiryDate.getTime() / 1000);
}
Uri uri = Keys.buildKeysUri(Long.toString(masterKeyId));
return ContentProviderOperation.newInsert(uri).withValues(values).build();
}
/**
* Build ContentProviderOperation to add PGPPublicKey to database corresponding to a keyRing
*/
private static ContentProviderOperation buildCertOperations(long masterKeyId,
int rank,
PGPSignature cert,
int verified)
throws IOException {
ContentValues values = new ContentValues();
values.put(Certs.MASTER_KEY_ID, masterKeyId);
values.put(Certs.RANK, rank);
values.put(Certs.KEY_ID_CERTIFIER, cert.getKeyID());
values.put(Certs.TYPE, cert.getSignatureType());
values.put(Certs.CREATION, cert.getCreationTime().getTime() / 1000);
values.put(Certs.VERIFIED, verified);
values.put(Certs.DATA, cert.getEncoded());
Uri uri = Certs.buildCertsUri(Long.toString(masterKeyId));
return ContentProviderOperation.newInsert(uri).withValues(values).build();
}
/**
* Build ContentProviderOperation to add PublicUserIds to database corresponding to a keyRing
*/
private static ContentProviderOperation buildUserIdOperations(long masterKeyId, UserIdItem item,
int rank) {
ContentValues values = new ContentValues();
values.put(UserIds.MASTER_KEY_ID, masterKeyId);
values.put(UserIds.USER_ID, item.userId);
values.put(UserIds.IS_PRIMARY, item.isPrimary);
values.put(UserIds.IS_REVOKED, item.isRevoked);
values.put(UserIds.RANK, rank);
Uri uri = UserIds.buildUserIdsUri(Long.toString(masterKeyId));
return ContentProviderOperation.newInsert(uri).withValues(values).build();
}
public static ArrayList<String> getKeyRingsAsArmoredString(Context context, long[] masterKeyIds) {
ArrayList<String> output = new ArrayList<String>();
if (masterKeyIds != null && masterKeyIds.length > 0) {
Cursor cursor = getCursorWithSelectedKeyringMasterKeyIds(context, masterKeyIds);
if (cursor != null) {
int masterIdCol = cursor.getColumnIndex(KeyRingData.MASTER_KEY_ID);
int dataCol = cursor.getColumnIndex(KeyRingData.KEY_RING_DATA);
if (cursor.moveToFirst()) {
do {
Log.d(Constants.TAG, "masterKeyId: " + cursor.getLong(masterIdCol));
// get actual keyring data blob and write it to ByteArrayOutputStream
try {
Object keyRing = null;
byte[] data = cursor.getBlob(dataCol);
if (data != null) {
keyRing = PgpConversionHelper.BytesToPGPKeyRing(data);
}
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ArmoredOutputStream aos = new ArmoredOutputStream(bos);
aos.setHeader("Version", PgpHelper.getFullVersion(context));
if (keyRing instanceof PGPSecretKeyRing) {
aos.write(((PGPSecretKeyRing) keyRing).getEncoded());
} else if (keyRing instanceof PGPPublicKeyRing) {
aos.write(((PGPPublicKeyRing) keyRing).getEncoded());
}
aos.close();
String armoredKey = bos.toString("UTF-8");
Log.d(Constants.TAG, "armoredKey:" + armoredKey);
output.add(armoredKey);
} catch (IOException e) {
Log.e(Constants.TAG, "IOException", e);
}
} while (cursor.moveToNext());
}
}
if (cursor != null) {
cursor.close();
}
} else {
Log.e(Constants.TAG, "No master keys given!");
}
if (output.size() > 0) {
return output;
} else {
return null;
}
}
private static Cursor getCursorWithSelectedKeyringMasterKeyIds(Context context, long[] masterKeyIds) {
Cursor cursor = null;
if (masterKeyIds != null && masterKeyIds.length > 0) {
String inMasterKeyList = KeyRingData.MASTER_KEY_ID + " IN (";
for (int i = 0; i < masterKeyIds.length; ++i) {
if (i != 0) {
inMasterKeyList += ", ";
}
inMasterKeyList += DatabaseUtils.sqlEscapeString("" + masterKeyIds[i]);
}
inMasterKeyList += ")";
cursor = context.getContentResolver().query(KeyRingData.buildPublicKeyRingUri(), new String[] {
KeyRingData._ID, KeyRingData.MASTER_KEY_ID, KeyRingData.KEY_RING_DATA
}, inMasterKeyList, null, null);
}
return cursor;
}
public static ArrayList<String> getRegisteredApiApps(Context context) {
Cursor cursor = context.getContentResolver().query(ApiApps.CONTENT_URI, null, null, null,
null);
ArrayList<String> packageNames = new ArrayList<String>();
if (cursor != null) {
int packageNameCol = cursor.getColumnIndex(ApiApps.PACKAGE_NAME);
if (cursor.moveToFirst()) {
do {
packageNames.add(cursor.getString(packageNameCol));
} while (cursor.moveToNext());
}
}
if (cursor != null) {
cursor.close();
}
return packageNames;
}
private static ContentValues contentValueForApiApps(AppSettings appSettings) {
ContentValues values = new ContentValues();
values.put(ApiApps.PACKAGE_NAME, appSettings.getPackageName());
values.put(ApiApps.PACKAGE_SIGNATURE, appSettings.getPackageSignature());
return values;
}
private static ContentValues contentValueForApiAccounts(AccountSettings accSettings) {
ContentValues values = new ContentValues();
values.put(KeychainContract.ApiAccounts.ACCOUNT_NAME, accSettings.getAccountName());
values.put(KeychainContract.ApiAccounts.KEY_ID, accSettings.getKeyId());
values.put(KeychainContract.ApiAccounts.COMPRESSION, accSettings.getCompression());
values.put(KeychainContract.ApiAccounts.ENCRYPTION_ALGORITHM, accSettings.getEncryptionAlgorithm());
values.put(KeychainContract.ApiAccounts.HASH_ALORITHM, accSettings.getHashAlgorithm());
return values;
}
public static void insertApiApp(Context context, AppSettings appSettings) {
context.getContentResolver().insert(KeychainContract.ApiApps.CONTENT_URI,
contentValueForApiApps(appSettings));
}
public static void insertApiAccount(Context context, Uri uri, AccountSettings accSettings) {
context.getContentResolver().insert(uri, contentValueForApiAccounts(accSettings));
}
public static void updateApiApp(Context context, AppSettings appSettings, Uri uri) {
if (context.getContentResolver().update(uri, contentValueForApiApps(appSettings), null,
null) <= 0) {
throw new RuntimeException();
}
}
public static void updateApiAccount(Context context, AccountSettings accSettings, Uri uri) {
if (context.getContentResolver().update(uri, contentValueForApiAccounts(accSettings), null,
null) <= 0) {
throw new RuntimeException();
}
}
/**
* Must be an uri pointing to an account
*
* @param context
* @param uri
* @return
*/
public static AppSettings getApiAppSettings(Context context, Uri uri) {
AppSettings settings = null;
Cursor cur = context.getContentResolver().query(uri, null, null, null, null);
if (cur != null && cur.moveToFirst()) {
settings = new AppSettings();
settings.setPackageName(cur.getString(
cur.getColumnIndex(KeychainContract.ApiApps.PACKAGE_NAME)));
settings.setPackageSignature(cur.getBlob(
cur.getColumnIndex(KeychainContract.ApiApps.PACKAGE_SIGNATURE)));
}
return settings;
}
public static AccountSettings getApiAccountSettings(Context context, Uri accountUri) {
AccountSettings settings = null;
Cursor cur = context.getContentResolver().query(accountUri, null, null, null, null);
if (cur != null && cur.moveToFirst()) {
settings = new AccountSettings();
settings.setAccountName(cur.getString(
cur.getColumnIndex(KeychainContract.ApiAccounts.ACCOUNT_NAME)));
settings.setKeyId(cur.getLong(
cur.getColumnIndex(KeychainContract.ApiAccounts.KEY_ID)));
settings.setCompression(cur.getInt(
cur.getColumnIndexOrThrow(KeychainContract.ApiAccounts.COMPRESSION)));
settings.setHashAlgorithm(cur.getInt(
cur.getColumnIndexOrThrow(KeychainContract.ApiAccounts.HASH_ALORITHM)));
settings.setEncryptionAlgorithm(cur.getInt(
cur.getColumnIndexOrThrow(KeychainContract.ApiAccounts.ENCRYPTION_ALGORITHM)));
}
return settings;
}
public static Set<Long> getAllKeyIdsForApp(Context context, Uri uri) {
Set<Long> keyIds = new HashSet<Long>();
Cursor cursor = context.getContentResolver().query(uri, null, null, null, null);
if (cursor != null) {
int keyIdColumn = cursor.getColumnIndex(KeychainContract.ApiAccounts.KEY_ID);
while (cursor.moveToNext()) {
keyIds.add(cursor.getLong(keyIdColumn));
}
}
return keyIds;
}
public static byte[] getApiAppSignature(Context context, String packageName) {
Uri queryUri = ApiApps.buildByPackageNameUri(packageName);
String[] projection = new String[]{ApiApps.PACKAGE_SIGNATURE};
ContentResolver cr = context.getContentResolver();
Cursor cursor = cr.query(queryUri, projection, null, null, null);
byte[] signature = null;
if (cursor != null && cursor.moveToFirst()) {
int signatureCol = 0;
signature = cursor.getBlob(signatureCol);
}
if (cursor != null) {
cursor.close();
}
return signature;
}
}
|