2020-02-15 22:42:21 +01:00
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use {
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rocket::data::{FromDataSimple, Outcome},
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rocket::http::Status,
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rocket::response::Responder,
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rocket::Request,
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rocket::{Data, Outcome::*},
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2020-02-18 22:07:57 +01:00
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ruma_client_api::error::Error,
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std::fmt::Debug,
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2020-02-15 22:42:21 +01:00
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std::ops::Deref,
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std::{
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convert::{TryFrom, TryInto},
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io::{Cursor, Read},
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},
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};
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const MESSAGE_LIMIT: u64 = 65535;
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pub struct Ruma<T>(pub T);
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2020-02-18 22:07:57 +01:00
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impl<T: TryFrom<http::Request<Vec<u8>>>> FromDataSimple for Ruma<T>
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where
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T::Error: Debug,
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{
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2020-02-15 22:42:21 +01:00
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type Error = ();
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fn from_data(request: &Request, data: Data) -> Outcome<Self, Self::Error> {
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2020-02-18 22:07:57 +01:00
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let mut http_request = http::Request::builder()
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.uri(request.uri().to_string())
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.method(&*request.method().to_string());
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2020-02-15 22:42:21 +01:00
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for header in request.headers().iter() {
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http_request = http_request.header(header.name.as_str(), &*header.value);
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}
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2020-02-18 22:07:57 +01:00
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let mut handle = data.open().take(MESSAGE_LIMIT);
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let mut body = Vec::new();
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handle.read_to_end(&mut body).unwrap();
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2020-02-15 22:42:21 +01:00
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let http_request = http_request.body(body).unwrap();
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2020-02-18 22:07:57 +01:00
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log::info!("{:?}", http_request);
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2020-02-15 22:42:21 +01:00
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match T::try_from(http_request) {
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Ok(r) => Success(Ruma(r)),
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2020-02-18 22:07:57 +01:00
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Err(e) => {
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log::error!("{:?}", e);
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Failure((Status::InternalServerError, ()))
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}
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2020-02-15 22:42:21 +01:00
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}
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}
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}
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impl<T> Deref for Ruma<T> {
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type Target = T;
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fn deref(&self) -> &Self::Target {
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&self.0
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}
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}
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2020-02-18 22:07:57 +01:00
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pub struct MatrixResult<T>(pub std::result::Result<T, Error>);
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impl<T: TryInto<http::Response<Vec<u8>>>> TryInto<http::Response<Vec<u8>>> for MatrixResult<T> {
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type Error = T::Error;
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fn try_into(self) -> Result<http::Response<Vec<u8>>, T::Error> {
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match self.0 {
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Ok(t) => t.try_into(),
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Err(e) => Ok(e.into()),
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}
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}
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}
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impl<'r, T: TryInto<http::Response<Vec<u8>>>> Responder<'r> for MatrixResult<T> {
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2020-02-15 22:42:21 +01:00
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fn respond_to(self, _: &Request) -> rocket::response::Result<'r> {
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2020-02-18 22:07:57 +01:00
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let http_response: Result<http::Response<_>, _> = self.try_into();
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match http_response {
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2020-02-15 22:42:21 +01:00
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Ok(http_response) => {
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let mut response = rocket::response::Response::build();
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response.sized_body(Cursor::new(http_response.body().clone()));
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for header in http_response.headers() {
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response
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.raw_header(header.0.to_string(), header.1.to_str().unwrap().to_owned());
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}
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response.ok()
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}
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Err(_) => Err(Status::InternalServerError),
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}
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}
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}
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