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website/src/main.rs

139 lines
3.4 KiB
Rust

use std::{collections::HashMap, fmt::Display, sync::Arc, time::Duration};
use axum::extract::MatchedPath;
use color_eyre::eyre::{Error, Result};
use hyper::{Body, Request, Response};
use post::Post;
use tag::Tag;
use tera::Tera;
use tower_http::{compression::CompressionLayer, cors::CorsLayer};
use tracing::{info_span, log::*, Span};
use tracing_subscriber::{prelude::*, EnvFilter};
mod feed;
mod handlers;
mod post;
mod tag;
#[derive(Default)]
pub struct AppState {
base_url: String,
posts: HashMap<String, Post>,
tags: HashMap<String, Tag>,
tera: Tera,
}
#[tokio::main]
async fn main() -> Result<()> {
color_eyre::install()?;
init_tracing();
info!("Starting server...");
let base_url = option_env!("SITE_BASE_URL")
.unwrap_or("http://localhost:8180")
.to_string();
let tera = Tera::new("templates/**/*")?;
let posts = post::load_all().await?;
let tags = tag::get_tags(posts.values());
let state = Arc::new(AppState {
base_url,
tera,
posts,
tags,
});
let app = handlers::routes(&state)
.layer(CorsLayer::permissive())
.layer(CompressionLayer::new())
.layer(
tower_http::trace::TraceLayer::new_for_http()
.make_span_with(make_span)
.on_response(on_response),
)
.with_state(state.clone());
info!("Now listening at {}", state.base_url);
axum::Server::bind(&"0.0.0.0:8180".parse().unwrap())
.serve(app.into_make_service())
.await?;
Ok(())
}
fn init_tracing() {
let filter = EnvFilter::builder()
.with_default_directive("into".parse().unwrap())
.from_env_lossy();
tracing_subscriber::registry()
.with(filter)
.with(tracing_subscriber::fmt::layer())
.init();
}
fn make_span(request: &Request<Body>) -> Span {
let uri = request.uri();
let route = request
.extensions()
.get::<MatchedPath>()
.map(|mp| mp.as_str())
.unwrap_or_default();
let method = request.method().as_str();
let target = uri.path_and_query().map(|p| p.as_str()).unwrap_or_default();
let name = format!("{method} {route}");
use tracing::field::Empty;
info_span!(
"request",
otel.name = %name,
http.route = %route,
http.method = %method,
http.target = %target,
http.status_code = Empty
)
}
fn on_response<B>(response: &Response<B>, _latency: Duration, span: &Span) {
span.record("http.status_code", response.status().as_str());
}
#[derive(Debug)]
pub enum WebsiteError {
NotFound,
InternalError(Error),
}
impl std::error::Error for WebsiteError {
fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
match self {
WebsiteError::NotFound => None,
WebsiteError::InternalError(e) => Some(e.as_ref()),
}
}
}
impl Display for WebsiteError {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
WebsiteError::NotFound => write!(f, "Not found"),
_ => write!(f, "Internal error"),
}
}
}
impl From<tera::Error> for WebsiteError {
fn from(value: tera::Error) -> Self {
WebsiteError::InternalError(value.into())
}
}
impl From<color_eyre::Report> for WebsiteError {
fn from(value: color_eyre::Report) -> Self {
WebsiteError::InternalError(value)
}
}