nginx and other stuff

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2024-06-27 20:50:58 +02:00
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11
backend/Cargo.toml Normal file
View File

@@ -0,0 +1,11 @@
[package]
name = "qr-generator"
version = "0.1.0"
edition = "2021"
[dependencies]
axum = "0.6.20"
tokio = { version = "1.33.0", features = ["macros", "rt-multi-thread"] }
qrcode = "0.12.0"
image = "0.23.14"

9
backend/Dockerfile Normal file
View File

@@ -0,0 +1,9 @@
FROM rust:1.73 as builder
WORKDIR /usr/src/app
COPY . .
RUN cargo build --release
FROM alpine:latest
RUN apk add --no-cache libgcc libstdc++
COPY --from=builder /usr/src/app/target/release/qr-generator /usr/local/bin/qr-generator
CMD ["qr-generator"]

42
backend/src/main.rs Normal file
View File

@@ -0,0 +1,42 @@
use std::collections::HashMap;
use axum::{Router, routing::get, extract::Query, response::IntoResponse, http::{header::CONTENT_TYPE, StatusCode}};
use image::{Luma, png::PngEncoder, ColorType};
#[tokio::main]
async fn main() {
let app = Router::new().route("/", get(index)).route("/qr", get(get_qr_code));
axum::Server::bind(&"127.0.0.1:8000".parse().unwrap())
.serve(app.into_make_service())
.await
.unwrap();
}
async fn index() -> &'static str {
"Hello, world!"
}
async fn get_qr_code(Query(params): Query<HashMap<String, String>>) -> impl IntoResponse {
let link = match params.get("link") {
Some(l) => l,
None => {
return (StatusCode::BAD_REQUEST, [(CONTENT_TYPE, "text/plain")], "Missing link").into_response();
}
};
let qr_code = match qrcode::QrCode::new(link) {
Ok(qr) => qr,
Err(_) => return (StatusCode::BAD_REQUEST, [(CONTENT_TYPE, "text/plain")], "Invalid link").into_response(),
};
let qr_image = qr_code.render::<Luma<u8>>().build();
let mut buffer: Vec<u8> = Vec::new();
let width = qr_image.width();
let height = qr_image.height();
let encoder = PngEncoder::new(&mut buffer);
match encoder.encode(&qr_image.into_raw(), width, height, ColorType::L8) {
Ok(_) => (),
Err(_) => return (StatusCode::INTERNAL_SERVER_ERROR, [(CONTENT_TYPE, "text/plain")], "Failed to encode QR code").into_response(),
}
(StatusCode::OK, [(CONTENT_TYPE, "image/png")], buffer).into_response()
}