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Set correct response headers, status code

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vpl 2019-09-02 21:13:12 +02:00
parent 16d88402cb
commit 5a2f968d7a
1 changed files with 22 additions and 10 deletions
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32
src/util.rs
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@ -4,7 +4,7 @@
use rocket::fairing::{Fairing, Info, Kind};
use rocket::response::{self, Responder};
use rocket::{Request, Response};
use rocket::http::{Header, ContentType, Method};
use rocket::http::{Header, HeaderMap, ContentType, Method, Status};
use std::io::Cursor;
pub struct AppHeaders();
@ -33,9 +33,17 @@ impl Fairing for AppHeaders {
}
}
pub struct CORS();
impl CORS {
fn get_header(headers: &HeaderMap, name: &str) -> String {
match headers.get_one(name) {
Some(h) => h.to_string(),
_ => "".to_string(),
}
}
}
impl Fairing for CORS {
fn info(&self) -> Info {
Info {
@ -45,21 +53,25 @@ impl Fairing for CORS {
}
fn on_response(&self, request: &Request, response: &mut Response) {
// We need to explictly get the Origin header for Access-Control-Allow-Origin
let origin = match request.headers().get_one("Origin") {
Some(h) => h.to_string(),
_ => "".to_string(),
};
let req_headers = request.headers();
// We need to explicitly get the Origin header for Access-Control-Allow-Origin
let req_allow_origin = CORS::get_header(&req_headers, "Origin");
let req_allow_headers = CORS::get_header(&req_headers, "Access-Control-Request-Headers");
let req_allow_methods =CORS::get_header(&req_headers,"Access-Control-Request-Methods");
if request.method() == Method::Options || response.content_type() == Some(ContentType::JSON) {
// Requests with credentials need explicit values since they do not allow wildcards.
response.set_header(Header::new("Access-Control-Allow-Origin", origin));
response.set_header(Header::new("Access-Control-Allow-Methods", "GET, HEAD, POST, PUT, DELETE, CONNECT, OPTIONS, TRACE, PATCH"));
response.set_header(Header::new("Access-Control-Allow-Headers", "*, Authorization"));
response.set_header(Header::new("Access-Control-Allow-Origin", req_allow_origin));
response.set_header(Header::new("Access-Control-Allow-Methods", req_allow_methods));
response.set_header(Header::new("Access-Control-Allow-Headers", req_allow_headers));
response.set_header(Header::new("Access-Control-Allow-Credentials", "true"));
}
if request.method() == Method::Options {
response.set_status(Status::Ok);
response.set_header(ContentType::Plain);
response.set_sized_body(Cursor::new(""));
}