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request_info.rs
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request_info.rs
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/*-
* ========================LICENSE_START=================================
* PREvant REST API
* %%
* Copyright (C) 2018 - 2019 aixigo AG
* %%
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
* =========================LICENSE_END==================================
*/
use rocket::http::Status;
use rocket::request::{self, FromRequest, Request};
use rocket::Outcome;
use url::Url;
pub struct RequestInfo {
base_url: Url,
}
impl RequestInfo {
#[cfg(test)]
pub fn new(base_url: Url) -> Self {
RequestInfo { base_url }
}
/// Returns the value for the `host` value of the
/// [Forwarded](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Forwarded) header.
pub fn host(&self) -> String {
match self.base_url.scheme() {
"http" => match self.base_url.port() {
None | Some(80) => String::from(self.base_url.host_str().unwrap()),
Some(port) => format!("{}:{}", self.base_url.host_str().unwrap(), port),
},
"https" => match self.base_url.port() {
None | Some(443) => String::from(self.base_url.host_str().unwrap()),
Some(port) => format!("{}:{}", self.base_url.host_str().unwrap(), port),
},
_ => String::from(self.base_url.host_str().unwrap()),
}
}
/// Returns the value for the `proto` value of the
/// [Forwarded](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Forwarded) header.
pub fn scheme(&self) -> &str {
self.base_url.scheme()
}
pub fn get_base_url(&self) -> &Url {
&self.base_url
}
}
impl<'a, 'r> FromRequest<'a, 'r> for RequestInfo {
type Error = ();
fn from_request(request: &'a Request<'r>) -> request::Outcome<RequestInfo, ()> {
let hosts: Vec<_> = request.headers().get("host").collect();
if hosts.len() != 1 {
return Outcome::Failure((Status::BadRequest, ()));
}
let url_string = "http://".to_owned() + &hosts[0];
match Url::parse(&url_string) {
Ok(url) => return Outcome::Success(RequestInfo { base_url: url }),
Err(_) => return Outcome::Failure((Status::BadRequest, ())),
}
}
}