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error: added error catchers, error responder to respond with template, basic error templates

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This commit is contained in:
Philippe Loctaux 2023-02-28 17:28:16 +01:00
parent 27cc4c0956
commit a85f29d3a8
8 changed files with 128 additions and 0 deletions
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22
crates/ezidam/src/error/catchers.rs Normal file
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use super::{Error, StatusCode};
use rocket::http::Status;
use rocket::{catch, catchers, Build, Request, Rocket};
#[catch(404)]
fn not_found(req: &Request) -> Error {
Error::new(StatusCode::NotFound, req.uri())
}
#[catch(500)]
fn internal_server_error(req: &Request) -> Error {
Error::new(StatusCode::InternalServerError, req.uri())
}
#[catch(default)]
fn default(status: Status, req: &Request) -> Error {
Error::new(StatusCode::Unknown(status), req.uri())
}
pub fn register(rocket_builder: Rocket<Build>) -> Rocket<Build> {
rocket_builder.register("/", catchers![default, not_found, internal_server_error])
}

32
crates/ezidam/src/error/mod.rs Normal file
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pub(super) mod catchers;
mod conversion;
mod responder;
mod status_code;
use self::status_code::StatusCode;
use rocket_dyn_templates::{context, Template};
pub struct Error {
status: StatusCode,
template: Template,
}
impl Error {
fn new<M: std::fmt::Display>(status: StatusCode, message: M) -> Self {
Self {
status,
template: Template::render(
status.template_name(),
context! {
message: message.to_string(),
version: env!("CARGO_PKG_VERSION"),
http_code: status.http_code().code,
},
),
}
}
pub fn internal_server_error<E: std::error::Error>(error: E) -> Self {
Self::new(StatusCode::InternalServerError, error)
}
}

15
crates/ezidam/src/error/responder.rs Normal file
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use rocket::{response, Request, Response};
use rocket::response::Responder;
use super::Error;
impl<'r, 'o: 'r> Responder<'r, 'o> for Error {
fn respond_to(self, req: &Request) -> response::Result<'o> {
// Response for template
let template_response = self.template.respond_to(req)?;
// Set status for final response
Response::build_from(template_response)
.status(self.status.http_code())
.ok()
}
}

26
crates/ezidam/src/error/status_code.rs Normal file
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use rocket::http::Status;
#[derive(Copy, Clone)]
pub(super) enum StatusCode {
NotFound,
InternalServerError,
Unknown(Status),
}
impl StatusCode {
pub fn http_code(self) -> Status {
match self {
StatusCode::NotFound => Status::NotFound,
StatusCode::InternalServerError => Status::InternalServerError,
StatusCode::Unknown(status) => status,
}
}
pub fn template_name(self) -> &'static str {
match self {
StatusCode::NotFound => "errors/404",
StatusCode::InternalServerError => "errors/500",
StatusCode::Unknown(_) => "errors/unknown",
}
}
}

14
crates/ezidam/templates/base.html.tera Normal file
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<html>
<body>
{% block content %}{% endblock content %}
<div>
<div>ezidam version {{ version }}</div>
</div>
</body>
</html>

6
crates/ezidam/templates/errors/404.html.tera Normal file
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{% extends "base" %}
{% block content %}
<div>404 not found error!</div>
<div>{{ message }}</div>
{% endblock content %}

6
crates/ezidam/templates/errors/500.html.tera Normal file
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{% extends "base" %}
{% block content %}
<div>500 internal error!</div>
<div>{{ message }}</div>
{% endblock content %}

7
crates/ezidam/templates/errors/unknown.html.tera Normal file
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{% extends "base" %}
{% block content %}
<div>unknown error!</div>
<div>http code {{ http_code }}</div>
<div>{{ message }}</div>
{% endblock content %}