en/src/router/handlers/error.rs

100 lines
2.5 KiB
Rust

use axum::{
body::Body,
extract::State,
http::{Response, StatusCode, header},
};
use crate::{
graph::Graph,
router::{GlobalState, handlers},
};
pub(in crate::router::handlers) fn by_code(
code: Option<u16>,
message: Option<&str>,
graph: &Graph,
) -> Response<Body> {
let out_code = code.unwrap_or(500);
let out_message = &message.unwrap_or("Unknown error");
let body = make_body(Some(out_code), Some(out_message), graph);
handlers::raw::make_response(
&body,
out_code,
&[(header::CONTENT_TYPE, "text/html")],
)
}
fn make_body(
code: Option<u16>,
message: Option<&str>,
graph: &Graph,
) -> String {
let mut context = tera::Context::default();
let out_code = code.unwrap_or(500);
let out_message = &message.unwrap_or("Unknown error");
context.insert(
"title",
&StatusCode::from_u16(out_code)
.unwrap_or(StatusCode::INTERNAL_SERVER_ERROR)
.to_string(),
);
context.insert("graph", graph);
context.insert("message", out_message);
context.insert("status_code", &out_code.to_string());
handlers::template::render(
"error",
&context,
Some(&format!(
"Failed to render template for Error {out_code}: {out_message}"
))
.cloned(),
)
.0
}
pub async fn not_found(State(state): State<GlobalState>) -> Response<Body> {
by_code(
Some(404),
Some("The page you tried to access could not be found."),
&state.graph,
)
}
#[cfg(test)]
mod tests {
use axum::{extract::State, http::StatusCode};
use super::*;
#[tokio::test]
async fn not_found() {
let state = State(GlobalState {
graph: Graph::load(),
});
let response = super::not_found(state).await;
assert_eq!(response.status(), StatusCode::NOT_FOUND);
}
#[tokio::test]
async fn internal_error() {
let graph = Graph::load();
assert!(by_code(Some(201), None, &graph).status() == 201);
assert!(by_code(Some(304), None, &graph).status() == 304);
assert!(by_code(Some(418), None, &graph).status() == 418);
assert!(by_code(Some(505), None, &graph).status() == 505);
}
#[test]
fn custom_message() {
let pattern = "sibPtt0mvHPWS9HQ0YBQfGu8cUs954LZ";
let body = make_body(Some(501), Some(pattern), &Graph::load());
assert!(body.contains(pattern));
assert!(!body.contains(&pattern.chars().rev().collect::<String>()));
}
}