codigocomentado/src/main.rs

160 lines
4.3 KiB
Rust

mod schema;
#[macro_use]
extern crate diesel;
#[macro_use]
extern crate rocket;
use codigocomentado::*;
use comrak::{markdown_to_html, Options};
use controllers::posts;
use dotenv::dotenv;
use isbot::Bots;
use rocket::fs::{FileServer, NamedFile};
use rocket::http::Status;
use rocket::request::{FromRequest, Outcome, Request};
use rocket::response::content::RawXml;
use rocket::tokio::sync::OnceCell;
use rocket_dyn_templates::Template;
use std::path::Path;
use std::vec::Vec;
static BOTS: OnceCell<Bots> = OnceCell::const_new();
async fn is_bot(ua: &String) -> bool {
let bots = BOTS.get_or_init(|| async { Bots::default() }).await;
bots.is_bot(ua)
}
struct Headers {
user_agent: String,
}
#[rocket::async_trait]
impl<'r> FromRequest<'r> for Headers {
type Error = ();
async fn from_request(request: &'r Request<'_>) -> Outcome<Self, Self::Error> {
let token = request.headers().get_one("User-Agent");
match token {
Some(token) => Outcome::Success(Headers {
user_agent: token.to_string(),
}),
None => Outcome::Error((Status::Unauthorized, ())),
}
}
}
#[get("/?<page>")]
fn index(page: Option<u64>) -> Template {
let page: u64 = page.unwrap_or(1);
let (posts, n_posts) = posts::get_posts(Some(page));
let context = contexts::PageOfPosts::new(posts, page, n_posts);
Template::render("index", context)
}
#[get("/feed.xml")]
fn rss_feed() -> RawXml<Template> {
let (mut posts, _) = posts::get_posts(None);
let mut comrak_options = Options::default();
comrak_options.extension.table = true;
comrak_options.extension.autolink = true;
comrak_options.extension.tasklist = true;
comrak_options.render.unsafe_ = true;
posts.iter_mut().for_each(|post| {
let content = markdown_to_html(&post.content, &comrak_options);
post.content = content;
});
let context = contexts::XmlFeed::new(posts);
RawXml(Template::render("rss", context))
}
#[get("/atom.xml")]
fn atom_feed() -> RawXml<Template> {
let (mut posts, _) = posts::get_posts(None);
let mut comrak_options = Options::default();
comrak_options.extension.table = true;
comrak_options.extension.autolink = true;
comrak_options.extension.tasklist = true;
comrak_options.render.unsafe_ = true;
posts.iter_mut().for_each(|post| {
let content = markdown_to_html(&post.content, &comrak_options);
post.content = content;
});
let context = contexts::XmlFeed::new(posts);
RawXml(Template::render("atom", context))
}
#[get("/post/<title>")]
async fn show_post(title: &str, headers: Headers) -> Template {
let title_splited: Vec<&str> = title.split('-').collect();
let id = title_splited.last().unwrap().parse().unwrap_or(-1);
match posts::get_post(id) {
Ok(mut post) => {
if !is_bot(&headers.user_agent).await {
posts::add_visit(id);
}
let mut comrak_options = Options::default();
comrak_options.extension.table = true;
comrak_options.extension.autolink = true;
comrak_options.extension.tasklist = true;
comrak_options.render.unsafe_ = true;
comrak_options.extension.header_ids = Some("id-".to_string());
let content = markdown_to_html(&post.content, &comrak_options);
post.content = content;
let context = contexts::SinglePost::new(post);
Template::render("post", context)
}
Err(_) => {
let url = format!("/post/{}", title_splited.join("-"));
let context = contexts::NotFound::new(url);
Template::render("404", context)
}
}
}
#[catch(404)]
fn not_found_404(req: &Request) -> Template {
let uri = format!("{}", req.uri());
let context = contexts::NotFound::new(uri);
Template::render("404", context)
}
#[get("/favicon.ico")]
async fn favicon() -> Option<NamedFile> {
NamedFile::open(Path::new("static/favicon.ico")).await.ok()
}
#[launch]
fn rocket() -> _ {
dotenv().ok();
rocket::build()
.attach(Template::fairing())
.mount("/", routes![index, show_post, favicon, rss_feed, atom_feed])
.mount("/admin", admin::get_routes())
.mount("/static", FileServer::from("static"))
.register("/", catchers![not_found_404])
}