Groups promotion to other devices and QR code tokens synchronisation are not synchronised processes,
so there are reasons why a QR code token may arrive earlier than the first group message:
- We are going to upload sync messages via IMAP while group messages are sent by SMTP.
- If sync messages go to the mvbox, they can be fetched earlier than group messages from Inbox.
This change introduces new config options
`proxy_enabled` and `proxy_url`
that replace `socks5_*`.
Tested with deltachat-repl
by starting it with
`cargo run --locked -p deltachat-repl -- deltachat-db` and running
```
> set proxy_enabled 1
> set proxy_url ss://...
> setqr dcaccount:https://chatmail.example.org/new
> configure
```
Documentation comment says forward and backward verification is set,
but the code was not doing it.
`vc-contact-confirm` and `vg-member-added` messages
indicate that other device finished securejoin protocol
so we know Bob has our key marked as verified.
configured_imap_certificate_checks=0 means
accept invalid certificates unless provider database
says otherwise or SOCKS5 is enabled.
It should not be saved into the database anymore.
This bug was introduced in
<https://github.com/deltachat/deltachat-core-rust/pull/5854>
(commit 6b4532a08e)
and affects released core 1.142.4, 1.142.5 and 1.142.6.
Fix reverts faulty fix from
<https://github.com/deltachat/deltachat-core-rust/pull/5886>
(commit a268946f8d)
which changed the way configured_imap_certificate_checks=0
is interpreted and introduced problems
for existing setups with configured_imap_certificate_checks=0:
<https://github.com/deltachat/deltachat-core-rust/issues/5889>.
Existing test from previous fix is not reverted
and still applies.
Regression test is added to check that
configured_imap_certificate_checks
is not "0" for new accounts.
If user has not set any settings manually
and provider is not configured,
default to strict TLS checks.
Bug was introduced in
<https://github.com/deltachat/deltachat-core-rust/pull/5854>
(commit 6b4532a08e)
and affects released core 1.142.4 and 1.142.5.
The problem only affects accounts configured
using these core versions with provider
not in the provider database or when using advanced settings.
`Context::send_sync_msg()` mustn't be called from multiple tasks in parallel to avoid sending the
same sync items twice because sync items are removed from the db only after successful
sending. Let's guarantee this by calling `send_sync_msg()` only from the SMTP loop. Before
`send_sync_msg()` could be called in parallel from the SMTP loop and another task doing
e.g. `chat::sync()` which led to `test_multidevice_sync_chat` being flaky because of events
triggered by duplicated sync messages.
This way it's clearer which key is which and also adding the key fingerprint to the file name avoids
overwriting another previously exported key. I think this is better than adding an incremental
number as we do for backups, there's no need to export a key several times to different files.
Even if 1:1 chat with alice is protected,
we should send vc-request unencrypted.
This happens if Alice changed the key
and QR-code Bob scans contains fingerprint
that is different from the verified fingerprint.
Sending vc-request encrypted to the old key
does not help because Alice is not able
to decrypt it in this case.
If we wait for inviter success,
vg-member-added message may be still in flight
and reach ac2 after device resetup.
Making ac2 wait for joining the group ensures that old
device receives vg-member-added message
and new device will not receive it and fail to decrypt.
Other instances of wait_for_securejoin_inviter_success()
in the same tests are also replaced for reliability.
This is broken since 44227d7b86
mimeparser only recognizes read receipts
by the Content-Type being "multipart/report".
If multipart/report is hidden inside multipart/mixed
and the message is not encrypted,
it degrades encryption.
This test reproduces a bug preventing joining the group with a QR code
if the group already has a contact with inconsistent key state,
which means both Autocrypt and verified key exist,
but don't match.
This can happen when an invite QR code created by this contact
is scanned as scanning an invite code creates unprotected group
with the inviter for info messages.
If securejoin process never finishes because the inviter is offline,
group remains in this unprotected state with added inviter.
Normally the group becomes verified when a "Member added" (vg-member-added)
message is received in the chat.
However, current code checks that all members
of the chat are verified
(have a green checkmark, use verified key in 1:1 chat)
before marking the group as verified and fails otherwise.
Currently this leads to
DEBUG root:rpc.py:136 account_id=1 got an event {'kind': 'Warning', 'msg': 'src/scheduler.rs:711: send_smtp_messages failed: failed to send message: failed to update retries count: database is locked: Error code 5: The database file is locked'}
and
FAILED tests/test_webxdc.py::test_webxdc_insert_lots_of_updates - deltachat_rpc_client.rpc.JsonRpcError: {'code': -1, 'message': 'database is locked\n\nCaused by:\n Error code 5: The database file is locked'}
If verified key for a contact is changed via securejoin,
gossip the keys in every group with this contact next time
we send a message there to let others learn new verified key
and let the contact who has resetup their device learn keys of others
in groups.
