Also cleaned up test_connectivity()
which tested that state does not flicker to WORKING
when there are no messages to be fetched.
The state is expected to flicker to WORKING
when checking for new messages,
so the tests were outdated since
change 3b0b2379b8
I.e. treat `DeleteServerAfter == None` as "delete at once". But when a backup is exported, set
`DeleteServerAfter` to 0 so that the server decides when to delete messages, in order not to break
the multi-device case. Even if a backup is not aimed for deploying more devices, `DeleteServerAfter`
must be set to 0, otherwise the backup is half-useful because after a restoration the user wouldn't
see new messages deleted by the device after the backup was done. But if the user explicitly set
`DeleteServerAfter`, don't change it when exporting a backup. Anyway even for non-chatmail case the
app should warn the user before a backup export if they have `DeleteServerAfter` enabled.
Also do the same after a backup import. While this isn't reliable as we can crash in between, this
is a problem only for old backups, new backups already have `DeleteServerAfter` set if necessary.
---------
Co-authored-by: Hocuri <hocuri@gmx.de>
Bot processes are run asynchronously, so we shouldn't send messages to a bot before it's fully
initialised and skipped existing messages for processing, i.e. before DC_EVENT_IMAP_INBOX_IDLE is
emitted.
As trashed messages can't be loaded from the db now, `get_message_by_id()` returns None in some
tests e.g. in `test_deleted_msgs_dont_reappear()`. A `PerAccount` hook shouldn't be called if so.
There's no need to load an updated message state from the db to implement `is_outgoing()` and also
this function is implicitly called in some tests where a message is already trashed and a call to
`dc_get_msg()` generates an unexpected error.
The way it was implemented it threw out all remaining messages after finding the next incoming
message. Better use FFIEventTracker functions, they are used in all the tests anyway.
If a Delta Chat message has the Message-ID already existing in the db, but a greater "Date", it's a
resent message that can be deleted. Messages having the same "Date" mustn't be deleted because they
can be already seen messages moved back to INBOX. Also don't delete messages having lesser "Date" to
avoid deleting both messages in a multi-device setting.
The test checks that if webxdc update is too large to
download with the current `download_limit`,
it is applied afterwards when the user manually downloads the update message.
This patch adds new C APIs
dc_get_next_msgs() and dc_wait_next_msgs(),
and their JSON-RPC counterparts
get_next_msgs() and wait_next_msgs().
New configuration "last_msg_id"
tracks the last message ID processed by the bot.
get_next_msgs() returns message IDs above
the "last_msg_id".
wait_next_msgs() waits for new message notification
and calls get_next_msgs().
wait_next_msgs() can be used to build
a separate message processing loop
independent of the event loop.
Async Python API get_fresh_messages_in_arrival_order()
is deprecated in favor of get_next_messages().
Introduced Python APIs:
- Account.wait_next_incoming_message()
- Message.is_from_self()
- Message.is_from_device()
Introduced Rust APIs:
- Context.set_config_u32()
- Context.get_config_u32()
