Fix backup restore issues from restoring newer Signal backups.

Fixes #8184
This commit is contained in:
Greyson Parrelli 2018-09-07 16:08:45 -07:00
parent 15b4517e35
commit ad036b0d6a

View File

@ -241,11 +241,13 @@ public class SQLCipherOpenHelper extends SQLiteOpenHelper {
}
}
if (oldVersion < QUOTE_MISSING) {
// Note: This column only being checked due to upgrade issues as described in #8184
if (oldVersion < QUOTE_MISSING && !columnExists(db, "mms", "quote_missing")) {
db.execSQL("ALTER TABLE mms ADD COLUMN quote_missing INTEGER DEFAULT 0");
}
if (oldVersion < NOTIFICATION_CHANNELS) {
// Note: The column only being checked due to upgrade issues as described in #8184
if (oldVersion < NOTIFICATION_CHANNELS && !columnExists(db, "recipient_preferences", "notification_channel")) {
db.execSQL("ALTER TABLE recipient_preferences ADD COLUMN notification_channel TEXT DEFAULT NULL");
NotificationChannels.create(context);
@ -309,5 +311,19 @@ public class SQLCipherOpenHelper extends SQLiteOpenHelper {
db.execSQL(statement);
}
private static boolean columnExists(@NonNull SQLiteDatabase db, @NonNull String table, @NonNull String column) {
try (Cursor cursor = db.rawQuery("PRAGMA table_info(" + table + ")", null)) {
int nameColumnIndex = cursor.getColumnIndexOrThrow("name");
while (cursor.moveToNext()) {
String name = cursor.getString(nameColumnIndex);
if (name.equals(column)) {
return true;
}
}
}
return false;
}
}