proxmox-backup/src/api2/helpers.rs

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Rust
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use std::path::PathBuf;
use anyhow::Error;
use futures::*;
use hyper::{Body, Response, StatusCode, header};
use proxmox::http_err;
pub async fn create_download_response(path: PathBuf) -> Result<Response<Body>, Error> {
let file = tokio::fs::File::open(path.clone())
.map_err(move |err| http_err!(BAD_REQUEST, format!("open file {:?} failed: {}", path.clone(), err)))
.await?;
let payload = tokio_util::codec::FramedRead::new(file, tokio_util::codec::BytesCodec::new())
.map_ok(|bytes| hyper::body::Bytes::from(bytes.freeze()));
let body = Body::wrap_stream(payload);
// fixme: set other headers ?
Ok(Response::builder()
.status(StatusCode::OK)
.header(header::CONTENT_TYPE, "application/octet-stream")
.body(body)
.unwrap())
}