This patch introduces a helper class for SQfLite encryption related operations.
Most matrix clients will encrypt their sqlite database at rest. Since
this is a quite fragmented task using the Flutter sqlite ecosystem, this
helper aims to simplify some more complex operations.
It in particular helps with the following tasks :
- loading the correct shared objects / dynamic libraries for sqlcipher
- check whether a database is encrypted
- migrate an unencrypted SQLite database to SQLCipher
- apply the cipher to a database while opening it and ensure it loads
This code is not exactly matrix related, though presumably any matrix
client will use parts of it.
Possible regressions :
- `package:sqlite3` became a direct dependency. As of now it already was a
transitive dependency of the SDK itself.
Signed-off-by: The one with the braid <info@braid.business>
This refactors the transaction
workaround with
"zone transactions" and
abstracts them in a mixin. Then
it just uses this mixin in the
HiveDatabase and the
sqflite_box and also applies
them on indexedDB to
fix transactions on web.
dynamic.copy returned a type
error so I reverted the previous
change of the copyMap
method to an extension. Also
I found out that we have used
two copyMap methods in the
SDK which did exactly the same.
I deleted the old one and
changed the tests.
Unfortunately we need to copy
all maps. I took the opportunity
and abstracted the copy map
method to utils. I kept the
copyMap method as a
reference in HiveCollections
database to not require a
huge refactoring there as we
are going to ditch it anyway.
At least in our CI this throws a null assertion error and since we
explicitly expect this to sometimes be null in our code, we should store
it as such.
You can either set them to private on the client or overwrite the
behaviour for that on each readMarker call. This also handles incoming
thread receipts and tries its best to figure out what is the latest
receipt. This however breaks the old m.receipt account data event.
This makes sure that the deleteFromDisk() method is
called AFTER the clear while
the execution order was
random before which could
lead to the problem that
Hive tries to clear a box after
it got deleted.
The workaround was from the
time when we have used
sqflite or when Hive had
bugs. But now HiveCollections
already supports transactions
in Dart zones and concurrent
write operations shouldn't
be a problem anymore.
- implement session export
- implement session import
Please note, this is not device dehydration but a fully offline session
dump eligible for e.g. TOR users.
Signed-off-by: Lanna Michalke <l.michalke@famedly.com>
States were used before being fetched from the database.
Thus, room membership states weren't set, and so,
user display names weren't be fetched from the database.