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 'SpaceHelmet' fairing is now called 'Shield'. It features the
following changes and improvements:
* Headers which are now ignored by browsers are removed.
* 'XssFilter' is no longer an on-by-default policy.
* A new 'Permission' policy is introduced.
* 'Shield' is attached to all 'Rocket' instances by default.
* Default headers never allocate on 'Clone'.
* Policy headers are rendered once and cached at start-up.
* Improved use of typed URIs in policy types.
...because loading up a Rocket while it's ignited is a bad idea.
More seriously, because 'Rocket.ignite()' will become an "execute
everything up to here" method.
The new examples directory...
* Contains a `README.md` explaining each example.
* Consolidates examples into more complete chunks.
* Is just better.
Resolves#1447.
At the moment, I simply install the first route I see into the Rocket struct
directly. This is quite terrible. What's worse is that I assume that the Route's
path and handler are static! The handler, actually, does have to be static, but
its response may have whatever (valid) lifetime, though I'm not sure anything
but `static makes sense. I'll think about it.
In any case, the weird `static` restrictions need to be removed, and I need to
think about which lifetimes are safe here. IE: Must all routes be static? Can I
use a closure as a route? (that'd be neat). If so, how do we make that work?
In any case, it's nice to see SOMETHING work. Yay!
Subset of list of changes:
* Split up decorator and macro into their own files.
* Fully parsing the path parameter and verifying against the function's args.
* Actually calling methods to fetch and convert the request parameters.
* Actually calling methods to convert the handler's return type.
* Sketched out more of the Request/Response structures.
Pretty close to having a fully working MVP.
Here's what works so far:
* The `route` decorator checks its inputs correctly. There's a nice utility
for doing this, and it's working quite well at the moment.
* The `route` decorator emits a `route_fn` and a `route_struct`. The `routes`
* macro prepends the path terminator with the route struct prefix. The
* `Rocket` library can read mount information (though not act on it properly
just yet) and launch a server using Hyper.
Sergio Benitez
Konrad Borowski
Sergio Benitez