feat: gzip compression on demand via accept-encoding header
resolves #10
Diff
src/gzip.rs | 29 +++++++++++++++++------------
1 file changed, 17 insertions(+), 12 deletions(-)
@@ -1,24 +1,29 @@
use flate2::write::GzEncoder;
use flate2::Compression;
use iron::headers::{ContentEncoding, Encoding};
use iron::headers::{AcceptEncoding, ContentEncoding, Encoding};
use iron::prelude::*;
use iron::AfterMiddleware;
pub struct GzipMiddleware;
impl AfterMiddleware for GzipMiddleware {
fn after(&self, _: &mut Request, mut resp: Response) -> IronResult<Response> {
let compressed_bytes = resp.body.as_mut().map(|b| {
let mut encoder = GzEncoder::new(Vec::new(), Compression::fast());
{
let _ = b.write_body(&mut encoder);
fn after(&self, req: &mut Request, mut resp: Response) -> IronResult<Response> {
let accept_gz = match req.headers.get::<AcceptEncoding>() {
Some(accept) => accept.0.iter().any(|qi| qi.item == Encoding::Gzip),
None => false,
};
if accept_gz {
let compressed_bytes = resp.body.as_mut().map(|b| {
let mut encoder = GzEncoder::new(Vec::new(), Compression::fast());
{
let _ = b.write_body(&mut encoder);
}
encoder.finish().unwrap()
});
if let Some(b) = compressed_bytes {
resp.headers.set(ContentEncoding(vec![Encoding::Gzip]));
resp.set_mut(b);
}
encoder.finish().unwrap()
});
if let Some(b) = compressed_bytes {
resp.headers.set(ContentEncoding(vec![Encoding::Gzip]));
resp.set_mut(b);
}
Ok(resp)
