karton/src/endpoints/qr.rs
2023-02-17 22:14:43 +01:00

68 lines
2.1 KiB
Rust

use crate::args::{Args, ARGS};
use crate::endpoints::errors::ErrorTemplate;
use crate::pasta::Pasta;
use crate::util::animalnumbers::to_u64;
use crate::util::hashids::to_u64 as hashid_to_u64;
use crate::util::misc::{self, remove_expired};
use crate::AppState;
use actix_web::{get, web, HttpResponse};
use askama::Template;
#[derive(Template)]
#[template(path = "qr.html", escape = "none")]
struct QRTemplate<'a> {
qr: &'a String,
pasta: &'a Pasta,
args: &'a Args,
}
#[get("/qr/{id}")]
pub async fn getqr(data: web::Data<AppState>, id: web::Path<String>) -> HttpResponse {
// get access to the pasta collection
let mut pastas = data.pastas.lock().await;
let u64_id = if ARGS.hash_ids {
hashid_to_u64(&id).unwrap_or(0)
} else {
to_u64(&id).unwrap_or(0)
};
// remove expired pastas (including this one if needed)
remove_expired(&mut pastas);
// find the index of the pasta in the collection based on u64 id
let mut index: usize = 0;
let mut found: bool = false;
for (i, pasta) in pastas.iter().enumerate() {
if pasta.id == u64_id {
index = i;
found = true;
break;
}
}
if found {
// generate the QR code as an SVG - if its a file or text pastas, this will point to the /pasta endpoint, otherwise to the /url endpoint, essentially directly taking the user to the url stored in the pasta
let svg: String = match pastas[index].pasta_type.as_str() {
"url" => misc::string_to_qr_svg(format!("{}/url/{}", &ARGS.public_path, &id).as_str()),
_ => misc::string_to_qr_svg(format!("{}/pasta/{}", &ARGS.public_path, &id).as_str()),
};
// serve qr code in template
return HttpResponse::Ok().content_type("text/html").body(
QRTemplate {
qr: &svg,
pasta: &pastas[index],
args: &ARGS,
}
.render()
.unwrap(),
);
}
// otherwise
// send pasta not found error
HttpResponse::Ok()
.content_type("text/html")
.body(ErrorTemplate { args: &ARGS }.render().unwrap())
}