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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use hyper::header::{AccessControlExposeHeaders, Headers};
use hyper::status::StatusCode;
use net_traits::response::{CacheState, HttpsState, Response, ResponseBody, ResponseType};
use std::ascii::AsciiExt;
use std::cell::RefCell;
use std::rc::Rc;
use std::sync::mpsc::Receiver;
use url::Url;
pub trait ResponseMethods {
fn new() -> Response;
fn to_filtered(Rc<Response>, ResponseType) -> Response;
}
impl ResponseMethods for Response {
fn new() -> Response {
Response {
response_type: ResponseType::Default,
termination_reason: None,
url: None,
url_list: RefCell::new(Vec::new()),
status: Some(StatusCode::Ok),
headers: Headers::new(),
body: RefCell::new(ResponseBody::Empty),
cache_state: CacheState::None,
https_state: HttpsState::None,
internal_response: None
}
}
/// Convert to a filtered response, of type `filter_type`.
/// Do not use with type Error or Default
fn to_filtered(old_response: Rc<Response>, filter_type: ResponseType) -> Response {
assert!(filter_type != ResponseType::Error);
assert!(filter_type != ResponseType::Default);
if Response::is_network_error(&old_response) {
return Response::network_error();
}
let old_headers = old_response.headers.clone();
let mut response = (*old_response).clone();
response.internal_response = Some(old_response);
response.response_type = filter_type;
match filter_type {
ResponseType::Default | ResponseType::Error => unreachable!(),
ResponseType::Basic => {
let headers = old_headers.iter().filter(|header| {
match &*header.name().to_ascii_lowercase() {
"set-cookie" | "set-cookie2" => false,
_ => true
}
}).collect();
response.headers = headers;
},
ResponseType::CORS => {
let access = old_headers.get::<AccessControlExposeHeaders>();
let allowed_headers = access.as_ref().map(|v| &v[..]).unwrap_or(&[]);
let headers = old_headers.iter().filter(|header| {
match &*header.name().to_ascii_lowercase() {
"cache-control" | "content-language" | "content-type" |
"expires" | "last-modified" | "pragma" => true,
"set-cookie" | "set-cookie2" => false,
header => {
let result =
allowed_headers.iter().find(|h| *header == *h.to_ascii_lowercase());
result.is_some()
}
}
}).collect();
response.headers = headers;
},
ResponseType::Opaque => {
response.url_list = RefCell::new(vec![]);
response.url = None;
response.headers = Headers::new();
response.status = None;
response.body = RefCell::new(ResponseBody::Empty);
response.cache_state = CacheState::None;
},
ResponseType::OpaqueRedirect => {
response.headers = Headers::new();
response.status = None;
response.body = RefCell::new(ResponseBody::Empty);
response.cache_state = CacheState::None;
}
}
response
}
}
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