diff options
Diffstat (limited to 'OpenKeychain/src')
| -rw-r--r-- | OpenKeychain/src/main/java/org/sufficientlysecure/keychain/helper/ContactHelper.java | 116 |
1 files changed, 90 insertions, 26 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/helper/ContactHelper.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/helper/ContactHelper.java index 66d579e92..d8a7e8427 100644 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/helper/ContactHelper.java +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/helper/ContactHelper.java @@ -45,9 +45,18 @@ public class ContactHelper { public static final String[] USER_IDS_PROJECTION = new String[]{ KeychainContract.UserIds.USER_ID }; - public static final String[] RAW_CONTACT_ID_PROJECTION = new String[]{ContactsContract.RawContacts._ID}; - public static final String FIND_RAW_CONTACT_SELECTION = + + public static final String NON_REVOKED_SELECTION = KeychainContract.UserIds.IS_REVOKED + "=0"; + + public static final String[] ID_PROJECTION = new String[]{ContactsContract.RawContacts._ID}; + public static final String[] SOURCE_ID_PROJECTION = new String[]{ContactsContract.RawContacts.SOURCE_ID}; + + public static final String ACCOUNT_TYPE_AND_SOURCE_ID_SELECTION = ContactsContract.RawContacts.ACCOUNT_TYPE + "=? AND " + ContactsContract.RawContacts.SOURCE_ID + "=?"; + public static final String ACCOUNT_TYPE_SELECTION = ContactsContract.RawContacts.ACCOUNT_TYPE + "=?"; + public static final String RAW_CONTACT_AND_MIMETYPE_SELECTION = + ContactsContract.Data.RAW_CONTACT_ID + "=? AND " + ContactsContract.Data.MIMETYPE + "=?"; + public static final String ID_SELECTION = ContactsContract.RawContacts._ID + "=?"; public static List<String> getMailAccounts(Context context) { final Account[] accounts = AccountManager.get(context).getAccounts(); @@ -90,45 +99,44 @@ public class ContactHelper { return null; } - private static ContentProviderOperation.Builder referenceRawContact(ContentProviderOperation.Builder builder, - int rawContactId) { - return rawContactId == -1 ? - builder.withValueBackReference(ContactsContract.Data.RAW_CONTACT_ID, 0) : - builder.withValue(ContactsContract.Data.RAW_CONTACT_ID, rawContactId); - } - + /** + * Write the current Keychain to the contact db + */ public static void writeKeysToContacts(Context context) { ContentResolver resolver = context.getContentResolver(); + Set<String> contactFingerprints = getRawContactFingerprints(resolver); + + // Load all Keys from OK Cursor cursor = resolver.query(KeychainContract.KeyRings.buildUnifiedKeyRingsUri(), KEYS_TO_CONTACT_PROJECTION, null, null, null); if (cursor != null) { while (cursor.moveToNext()) { String[] primaryUserId = KeyRing.splitUserId(cursor.getString(0)); String fingerprint = PgpKeyHelper.convertFingerprintToHex(cursor.getBlob(1)); + contactFingerprints.remove(fingerprint); String keyIdShort = PgpKeyHelper.convertKeyIdToHexShort(cursor.getLong(2)); long masterKeyId = cursor.getLong(3); boolean isExpired = !cursor.isNull(4) && new Date(cursor.getLong(4) * 1000).before(new Date()); boolean isRevoked = cursor.getInt(5) > 0; - int rawContactId = -1; - Cursor raw = resolver.query(ContactsContract.RawContacts.CONTENT_URI, RAW_CONTACT_ID_PROJECTION, - FIND_RAW_CONTACT_SELECTION, new String[]{Constants.PACKAGE_NAME, fingerprint}, null, null); - if (raw != null) { - if (raw.moveToNext()) { - rawContactId = raw.getInt(0); - } - raw.close(); - } + int rawContactId = findRawContactId(resolver, fingerprint); ArrayList<ContentProviderOperation> ops = new ArrayList<ContentProviderOperation>(); + + // Do not store expired or revoked keys in contact db - and remove them if they already exist if (isExpired || isRevoked) { if (rawContactId != -1) { - resolver.delete(ContactsContract.RawContacts.CONTENT_URI, - ContactsContract.RawContacts._ID + "=?", new String[]{Integer.toString(rawContactId)}); + resolver.delete(ContactsContract.RawContacts.CONTENT_URI, ID_SELECTION, + new String[]{Integer.toString(rawContactId)}); } } else { + + // Create a new rawcontact with corresponding key if it does not exist yet if (rawContactId == -1) { insertContact(ops, context, fingerprint); writeContactKey(ops, context, rawContactId, masterKeyId, keyIdShort); } + + // We always update the display name (which is derived from primary user id) + // and email addresses from user id writeContactDisplayName(ops, rawContactId, primaryUserId[0]); writeContactEmail(ops, resolver, rawContactId, masterKeyId); try { @@ -140,8 +148,52 @@ public class ContactHelper { } cursor.close(); } + + // Delete fingerprints that are no longer present in OK + for (String fingerprint : contactFingerprints) { + resolver.delete(ContactsContract.RawContacts.CONTENT_URI, ACCOUNT_TYPE_AND_SOURCE_ID_SELECTION, + new String[]{Constants.PACKAGE_NAME, fingerprint}); + } + } + /** + * @return a set of all key fingerprints currently present in the contact db + */ + private static Set<String> getRawContactFingerprints(ContentResolver resolver) { + HashSet<String> result = new HashSet<String>(); + Cursor fingerprints = resolver.query(ContactsContract.RawContacts.CONTENT_URI, SOURCE_ID_PROJECTION, + ACCOUNT_TYPE_SELECTION, new String[]{Constants.PACKAGE_NAME}, null); + if (fingerprints != null) { + while (fingerprints.moveToNext()) { + result.add(fingerprints.getString(0)); + } + fingerprints.close(); + } + return result; + } + + /** + * This will search the contact db for a raw contact with a given fingerprint + * + * @return raw contact id or -1 if not found + */ + private static int findRawContactId(ContentResolver resolver, String fingerprint) { + int rawContactId = -1; + Cursor raw = resolver.query(ContactsContract.RawContacts.CONTENT_URI, ID_PROJECTION, + ACCOUNT_TYPE_AND_SOURCE_ID_SELECTION, new String[]{Constants.PACKAGE_NAME, fingerprint}, null, null); + if (raw != null) { + if (raw.moveToNext()) { + rawContactId = raw.getInt(0); + } + raw.close(); + } + return rawContactId; + } + + /** + * Creates a empty raw contact with a given fingerprint + */ private static void insertContact(ArrayList<ContentProviderOperation> ops, Context context, String fingerprint) { ops.add(ContentProviderOperation.newInsert(ContactsContract.RawContacts.CONTENT_URI) .withValue(ContactsContract.RawContacts.ACCOUNT_NAME, context.getString(R.string.app_name)) @@ -150,6 +202,11 @@ public class ContactHelper { .build()); } + /** + * Adds a key id to the given raw contact. + * <p/> + * This creates the link to OK in contact details + */ private static void writeContactKey(ArrayList<ContentProviderOperation> ops, Context context, int rawContactId, long masterKeyId, String keyIdShort) { ops.add(referenceRawContact(ContentProviderOperation.newInsert(ContactsContract.Data.CONTENT_URI), rawContactId) @@ -159,12 +216,15 @@ public class ContactHelper { .build()); } + /** + * Write all known email addresses of a key (derived from user ids) to a given raw contact + */ private static void writeContactEmail(ArrayList<ContentProviderOperation> ops, ContentResolver resolver, int rawContactId, long masterKeyId) { ops.add(selectByRawContactAndItemType(ContentProviderOperation.newDelete(ContactsContract.Data.CONTENT_URI), rawContactId, ContactsContract.CommonDataKinds.Email.CONTENT_ITEM_TYPE).build()); Cursor ids = resolver.query(KeychainContract.UserIds.buildUserIdsUri(Long.toString(masterKeyId)), - USER_IDS_PROJECTION, KeychainContract.UserIds.IS_REVOKED + "=0", null, null); + USER_IDS_PROJECTION, NON_REVOKED_SELECTION, null, null); if (ids != null) { while (ids.moveToNext()) { String[] userId = KeyRing.splitUserId(ids.getString(0)); @@ -191,22 +251,26 @@ public class ContactHelper { } } + private static ContentProviderOperation.Builder referenceRawContact(ContentProviderOperation.Builder builder, + int rawContactId) { + return rawContactId == -1 ? + builder.withValueBackReference(ContactsContract.Data.RAW_CONTACT_ID, 0) : + builder.withValue(ContactsContract.Data.RAW_CONTACT_ID, rawContactId); + } + private static ContentProviderOperation.Builder insertOrUpdateForRawContact(Uri uri, int rawContactId, String itemType) { if (rawContactId == -1) { return referenceRawContact(ContentProviderOperation.newInsert(uri), rawContactId).withValue( ContactsContract.Data.MIMETYPE, itemType); } else { - return ContentProviderOperation.newUpdate(uri).withSelection( - ContactsContract.Data.RAW_CONTACT_ID + "=? AND " + ContactsContract.Data.MIMETYPE + "=?", - new String[]{Integer.toString(rawContactId), itemType}); + return selectByRawContactAndItemType(ContentProviderOperation.newUpdate(uri), rawContactId, itemType); } } private static ContentProviderOperation.Builder selectByRawContactAndItemType( ContentProviderOperation.Builder builder, int rawContactId, String itemType) { - return builder.withSelection( - ContactsContract.Data.RAW_CONTACT_ID + "=? AND " + ContactsContract.Data.MIMETYPE + "=?", + return builder.withSelection(RAW_CONTACT_AND_MIMETYPE_SELECTION, new String[]{Integer.toString(rawContactId), itemType}); } } |