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use std::borrow::Cow;
use salvo_core::handler::Skipper;
use salvo_core::http::header;
use salvo_core::http::uri::{Scheme, Uri};
use salvo_core::http::{Request, ResBody, Response};
use salvo_core::writer::Redirect;
use salvo_core::{async_trait, Depot, FlowCtrl, Handler};
#[derive(Default)]
pub struct ForceHttps {
https_port: Option<u16>,
skipper: Option<Box<dyn Skipper>>,
}
impl ForceHttps {
pub fn new() -> Self {
Default::default()
}
pub fn https_port(self, port: u16) -> Self {
Self {
https_port: Some(port),
..self
}
}
pub fn skipper(self, skipper: impl Skipper) -> Self {
Self {
skipper: Some(Box::new(skipper)),
..self
}
}
}
#[async_trait]
impl Handler for ForceHttps {
#[inline]
async fn handle(&self, req: &mut Request, depot: &mut Depot, res: &mut Response, ctrl: &mut FlowCtrl) {
if req.uri().scheme() == Some(&Scheme::HTTPS)
|| self
.skipper
.as_ref()
.map(|skipper| skipper.skipped(req, depot))
.unwrap_or(false)
{
return;
}
if let Some(host) = req.header::<String>(header::HOST) {
let host = redirect_host(&host, self.https_port);
let uri_parts = std::mem::take(req.uri_mut()).into_parts();
let mut builder = Uri::builder().scheme(Scheme::HTTPS).authority(&*host);
if let Some(path_and_query) = uri_parts.path_and_query {
builder = builder.path_and_query(path_and_query);
}
if let Ok(uri) = builder.build() {
res.set_body(ResBody::None);
res.render(Redirect::permanent(uri));
ctrl.skip_rest();
}
}
}
}
fn redirect_host(host: &str, https_port: Option<u16>) -> Cow<'_, str> {
match (host.split_once(':'), https_port) {
(Some((host, _)), Some(port)) => Cow::Owned(format!("{}:{}", host, port)),
(None, Some(port)) => Cow::Owned(format!("{}:{}", host, port)),
(_, None) => Cow::Borrowed(host),
}
}
#[cfg(test)]
mod tests {
use salvo_core::http::header::{HOST, LOCATION};
use salvo_core::prelude::*;
use salvo_core::test::TestClient;
use super::*;
#[test]
fn test_redirect_host() {
assert_eq!(redirect_host("example.com", Some(1234)), "example.com:1234");
assert_eq!(redirect_host("example.com:5678", Some(1234)), "example.com:1234");
assert_eq!(redirect_host("example.com", Some(1234)), "example.com:1234");
assert_eq!(redirect_host("example.com:1234", None), "example.com:1234");
assert_eq!(redirect_host("example.com", None), "example.com");
}
#[handler]
async fn hello_world() -> &'static str {
"Hello World"
}
#[tokio::test]
async fn test_redirect_handler() {
let router = Router::with_hoop(ForceHttps::new().https_port(1234)).handle(hello_world);
let response = TestClient::get("http://127.0.0.1:7878/")
.add_header(HOST, "127.0.0.1:7878", true)
.send(router)
.await;
assert_eq!(response.status_code(), Some(StatusCode::PERMANENT_REDIRECT));
assert_eq!(
response.headers().get(LOCATION),
Some(&"https://127.0.0.1:1234/".parse().unwrap())
);
}
}