Previously, the `NotFound` status code was used to signal many kinds of
recoverable, forwarding errors. This included validation errors, incorrect
Content-Type errors, and more.
This commit modifies the status code used to forward in these instances to more
precisely indicate the forwarding condition. In particular:
* Parameter `FromParam` errors now forward as 422 (`UnprocessableEntity`).
* Query paramater errors now forward as 422 (`UnprocessableEntity`).
* Use of incorrect form content-type forwards as 413 (`UnsupportedMediaType`).
* `WebSocket` guard now forwards as 400 (`BadRequest`).
* `&Host`, `&Accept`, `&ContentType`, `IpAddr`, and `SocketAddr` all forward
with a 500 (`InternalServerError`).
Additionally, the `IntoOutcome` trait was overhauled to support functionality
previously offered by methods on `Outcome`. The `Outcome::forward()` method now
requires a status code to use for the forwarding outcome.
Finally, logging of `Outcome`s now includes the relevant status code.
Resolves#2626.
The primary motivation is to deconflate the leading `F`s in `Failure` and
`Forward`. In particular, when using a generics, we used `F` for forward, which
could easily be confused for `F` for `Failure`. This resolves the conflation.
Previously, `async_main` would extract a full `Config`. This mean that values
like `address` were read and parsed even when they were unused. Should they
exist and be malformed, a configuration error would needlessly arise.
This commit fixes this by only extract values that are subsequently used.
Prior to this commit, all forward outcomes resulted in a 404. This
commit changes request and data guards so that they are able to provide
a `Status` on `Forward` outcomes. The router uses this status, if the
final outcome is to forward, to identify the catcher to invoke.
The net effect is that guards can now customize the status code of a
forward and thus the error catcher invoked if the final outcome of a
request is to forward.
Resolves#1560.
This commit modifies all of the non-empty responders in the
`response::status` module so that they look like `Status<R>(pub R)`.
Prior to this commit, some responders looked like this, while others
contained an `Option<R>`.
Resolves#2351.
This modifies the 'IoHandler::io()' method so that it takes a
'Pin<Box<Self>>', allowing handlers to move internally and assume that
the data is pinned.
The change is then used in the 'ws' contrib crate to allow 'FnOnce'
handlers instead of 'FnMut'. The net effect is that streams, such as
those crated by 'Stream!', are now allowed to move internally.
Since active I/O streams will be closed by graceful shutdown, an error,
as was previously emitted, was necessarily alarmist. This reduces the
severity of the log message to a warning.
Sergio Benitez
Ruben Schmidmeister
Benedikt Weber
Mai-Lapyst
Jacob Sharf
inyourface34456
badoken
Unpublished
Dinu Blanovschi
Beep LIN
Kian-Meng Ang
Paul Weaver