`self.accounts.read().await.get_all()` acquires a read lock
and does not release it until the end of `for` loop.
After that, a writer may get into the queue,
e.g. because of the concurrent `add_account` call.
In this case `let context_option = self.accounts.read().await.get_account(id);`
tries to acquire another read lock and deadlocks
because tokio RwLock is write-preferring and will not
give another read lock while there is a writer in the queue.
At the same time, writer never gets a write lock
because the first read lock is not released.
The fix is to get a single read lock
for the whole `get_all_accounts()` call.
This is described in <https://docs.rs/tokio/1.44.1/tokio/sync/struct.RwLock.html#method.read>:
"Note that under the priority policy of RwLock, read locks are not
granted until prior write locks, to prevent starvation. Therefore
deadlock may occur if a read lock is held by the current task, a write
lock attempt is made, and then a subsequent read lock attempt is made by
the current task."
This API allows to explicitly set
a name of the contact
instead of trying to create a new contact
with the same address.
Not all contacts are identified
by the email address
and we are going to introduce
contacts identified by their keys.
Four new APIs `add_transport_from_qr()`, `add_transport()`,
`list_transports()`, `delete_transport()`, as described in the draft at
"API".
The `add_tranport*()` APIs automatically stops and starts I/O; for
`configure()` the stopping and starting is done in the JsonRPC bindings,
which is not where things like this should be done I think, the bindings
should just translate the APIs.
This also completely disables AEAP for now.
I won't be available for a week, but if you want to merge this already,
feel free to just commit all review suggestions and squash-merge.
WebSocket support is not used
and is not maintained. It still uses
outdated axum 0.7 version
and does not have any authentication.
Delta Chat Desktop has a new browser target
that implements WebSocket support on top
of stdio server, supports blobs
and is tested in CI.
This makes it so that files will be deduplicated when using the JsonRPC
API.
@nicodh and @WofWca you know the Desktop code and how it is using the
API, so, you can probably tell me whether this is a good way of changing
the JsonRPC code - feel free to push changes directly to this PR here!
This PR here changes the existing functions instead of creating new
ones; we can alternatively create new ones if it allows for a smoother
transition.
This brings a few changes:
- If you pass a file that is already in the blobdir, it will be renamed
to `<hash>.<extension>` immediately (previously, the filename on the
disk stayed the same)
- If you pass a file that's not in the blobdir yet, it will be copied to
the blobdir immediately (previously, it was copied to the blobdir later,
when sending)
- If you create a file and then pass it to `create_message()`, it's
better to directly create it in the blobdir, since it doesn't need to be
copied.
- You must not write to the files after they were passed to core,
because otherwise, the hash will be wrong. So, if Desktop recodes videos
or so, then the video file mustn't just be overwritten. What you can do
instead is write the recoded video to a file with a random name in the
blobdir and then create a new message with the new attachment. If
needed, we can also create a JsonRPC for `set_file_and_deduplicate()`
that replaces the file on an existing message.
In order to test whether everything still works, the desktop issue has a
list of things to test:
https://github.com/deltachat/deltachat-desktop/issues/4498
Core issue: #6265
---------
Co-authored-by: l <link2xt@testrun.org>
with this PR, when an `.xdc` with `request_integration = map` in the
manifest is added to the "Saved Messages" chat, it is used _locally_ as
an replacement for the shipped maps.xdc (other devices will see the
`.xdc` but not use it)
this allows easy development and adapting the map to use services that
work better in some area.
there are lots of known discussions and ideas about adding more barriers
of safety. however, after internal discussions, we decided to move
forward and also to allow internet, if requested by an integration (as
discussed at
https://github.com/deltachat/deltachat-core-rust/pull/3516).
the gist is to ease development and to make users who want to adapt,
actionable _now_, without making things too hard and adding too high
barriers or stressing our own resources/power too much.
note, that things are still experimental and will be the next time -
without the corresponding switch being enabled, nothing will work at
all, so we can be quite relaxed here :)
for android/ios, things will work directly. for desktop, allow_internet
needs to be accepted unconditionally from core. for the future, we might
add a question before using an integration and/or add signing. or sth.
completely different - but for now, the thing is to get started.
nb: "integration" field in the webxdc-info is experimental as well and
should not be used in UIs at all currently, it may vanish again and is
there mainly for simplicity of the code; therefore, no need to document
that.
successor of https://github.com/deltachat/deltachat-core-rust/pull/5461
this is how it looks like currently - again, please note that all that
is an experiment!
<img width=320
src=https://github.com/deltachat/deltachat-core-rust/assets/9800740/f659c891-f46a-4e28-9d0a-b6783d69be8d>
<img width=320
src=https://github.com/deltachat/deltachat-core-rust/assets/9800740/54549b3c-a894-4568-9e27-d5f1caea2d22>
... when going out of experimental, there are loots of ideas, eg.
changing "Start" to "integrate"
this PR adds the `href` from `update.href` to the IncomingWebxdcNotify
event (DC_EVENT_INCOMING_WEBXDC_NOTIFY in cffi)
purpose is to add a "Start" button to the notifications that allow
starting the app immediately with the given href
- **feat: add `AccountsChanged` and `AccountsItemChanged` events**
- **emit event and add tests**
closes#6106
TODO:
- [x] test receiving synced config from second device
- [x] bug: investigate how to delay the configuration event until it is
actually configured - because desktop gets the event but still shows
account as if it was unconfigured, maybe event is emitted before the
value is written to the database?
- [x] update node bindings constants
this PR removes most usages of the `descr` parameter.
- to avoid noise in different branches etc. (as annoying on similar, at
a first glance simple changes), i left the external API stable
- also, the effort to do a database migration seems to be over the top,
so the column is left and set to empty strings on future updates - maybe
we can recycle the column at some point ;)
closes#6245
this PR adds support for the property `update.notify` to notify about
changes in `update.info` or `update.summary`. the property can be set to
an array of addresses [^1]
core emits then the event `IncomingWebxdcNotify`, resulting in all UIs
to display a system notification, maybe even via PUSH.
for using the existing `update.info` and `update.summary`: the message
is no secret and should be visible to all group members as usual, to not
break the UX of having same group messages on all devices of all users -
as known already from the normal messages.
also, that way, there is no question what happens if user have disabled
notifications as the change is presented in the chat as well
doc counterpart at https://github.com/webxdc/website/pull/90closes#6217
[^1]: addresses come in either via the payload as currently or as an
explicit sender in the future - this does not affect this PR. same for
translations, see discussions at #6217 and #6097
---------
Co-authored-by: adb <asieldbenitez@gmail.com>
Co-authored-by: l <link2xt@testrun.org>
this PR adds the address to be used by the UI for
`window.webxdc.selfAddr` to webxdc-info. UIs need to be changed
accordingly and must not use configured_addr any longer.
the address is created by sha256(private-key + rfc724_mid) , which
results in different addresses for each webxdc, without the option to
find out the real address of the user.
this also returns the same address for a multi-device-setup - sending
totally random self address around might be an alternative, however
would require connectivity (both devices may be offline on first start).
for existing app, after the change, there will be a new user, resulting
eg. in a new highscore, otherwise, things should be mostly fine. this
assumption is also important as we might change the thing another time
when it comes to multi-transport.
ftr, addresses look like
`0f187e3f420748b03e3da76543e9a84ecff822687ce7e94f250c04c7c50398bc` now
when this is merged, we need to adapt #6230 and file issues for all UI
to use `info.selfAddr`
closes#6216
The message may be deleted while chatlist item is loading.
In this case displaying "No messages" is better than failing.
Ideally loading of the chatlist item
should happen in 1 database transaction and
always return some message if chat is not empty,
but this requires large refactoring.
This adds a function to `Message`:
```rust
pub fn new_text(text: String) -> Self {
Message {
viewtype: Viewtype::Text,
text,
..Default::default()
}
}
```
I keep expecting that a function like this must exist and being
surprised that it doesn't.
Open question is whether it should be `pub` or `pub(crate)` - I made it
`pub` for now because it may be useful for others and we currently we
aren't thinking about the Rust API that much, anyway, but I can make it
`pub(crate)`, too (then it can't be used in deltachat-jsonrpc and
deltachat-repl).
I replaced some usages of Message::new(Viewtype::Text), but not all yet,
I'm going to do this in a follow-up, which will remove another around 65
LOC.
Instead of treating NULL type error
as absence of the row,
handle NULL values with SQL.
Previously we sometimes
accidentally treated a single column
being NULL as the lack of the whole row.
