2019-03-26 18:41:38 +00:00
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use std::cell::{Ref, RefMut};
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use std::fmt;
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2019-04-02 17:53:44 +00:00
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use std::marker::PhantomData;
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2019-11-19 03:55:17 +00:00
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use std::pin::Pin;
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use std::task::{Context, Poll};
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2019-03-26 18:41:38 +00:00
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2019-03-27 03:45:00 +00:00
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use bytes::{Bytes, BytesMut};
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2019-11-19 03:55:17 +00:00
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use futures::{ready, Future, Stream};
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2019-03-26 18:41:38 +00:00
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2019-04-01 18:51:18 +00:00
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use actix_http::cookie::Cookie;
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use actix_http::error::{CookieParseError, PayloadError};
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2019-03-27 04:31:18 +00:00
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use actix_http::http::header::{CONTENT_LENGTH, SET_COOKIE};
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2019-03-26 18:41:38 +00:00
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use actix_http::http::{HeaderMap, StatusCode, Version};
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2019-03-27 06:25:24 +00:00
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use actix_http::{Extensions, HttpMessage, Payload, PayloadStream, ResponseHead};
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2019-04-01 18:51:18 +00:00
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use serde::de::DeserializeOwned;
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2019-03-26 18:41:38 +00:00
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2019-04-01 18:51:18 +00:00
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use crate::error::JsonPayloadError;
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2019-03-27 04:31:18 +00:00
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2019-03-26 18:41:38 +00:00
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/// Client Response
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2019-03-27 03:45:00 +00:00
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pub struct ClientResponse<S = PayloadStream> {
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2019-03-26 18:41:38 +00:00
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pub(crate) head: ResponseHead,
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2019-03-27 03:45:00 +00:00
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pub(crate) payload: Payload<S>,
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2019-03-26 18:41:38 +00:00
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}
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2019-03-27 03:45:00 +00:00
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impl<S> HttpMessage for ClientResponse<S> {
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type Stream = S;
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2019-03-26 18:41:38 +00:00
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fn headers(&self) -> &HeaderMap {
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&self.head.headers
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}
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2019-12-08 06:31:16 +00:00
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fn extensions(&self) -> Ref<'_, Extensions> {
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2019-03-26 18:41:38 +00:00
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self.head.extensions()
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}
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2019-12-08 06:31:16 +00:00
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fn extensions_mut(&self) -> RefMut<'_, Extensions> {
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2019-03-26 18:41:38 +00:00
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self.head.extensions_mut()
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}
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2019-03-27 03:45:00 +00:00
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fn take_payload(&mut self) -> Payload<S> {
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2019-03-26 18:41:38 +00:00
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std::mem::replace(&mut self.payload, Payload::None)
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}
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2019-03-27 04:31:18 +00:00
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/// Load request cookies.
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#[inline]
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2019-12-08 06:31:16 +00:00
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fn cookies(&self) -> Result<Ref<'_, Vec<Cookie<'static>>>, CookieParseError> {
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2019-03-27 04:31:18 +00:00
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struct Cookies(Vec<Cookie<'static>>);
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if self.extensions().get::<Cookies>().is_none() {
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let mut cookies = Vec::new();
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2019-04-06 22:02:02 +00:00
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for hdr in self.headers().get_all(&SET_COOKIE) {
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2019-03-27 04:31:18 +00:00
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let s = std::str::from_utf8(hdr.as_bytes())
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.map_err(CookieParseError::from)?;
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cookies.push(Cookie::parse_encoded(s)?.into_owned());
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}
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self.extensions_mut().insert(Cookies(cookies));
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}
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Ok(Ref::map(self.extensions(), |ext| {
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&ext.get::<Cookies>().unwrap().0
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}))
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}
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2019-03-26 18:41:38 +00:00
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}
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2019-03-27 03:45:00 +00:00
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impl<S> ClientResponse<S> {
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2019-03-26 18:41:38 +00:00
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/// Create new Request instance
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2019-03-27 03:45:00 +00:00
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pub(crate) fn new(head: ResponseHead, payload: Payload<S>) -> Self {
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2019-03-26 18:41:38 +00:00
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ClientResponse { head, payload }
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}
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#[inline]
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pub(crate) fn head(&self) -> &ResponseHead {
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&self.head
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}
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/// Read the Request Version.
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#[inline]
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pub fn version(&self) -> Version {
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self.head().version
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}
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/// Get the status from the server.
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#[inline]
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pub fn status(&self) -> StatusCode {
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self.head().status
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}
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#[inline]
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2019-04-02 20:35:01 +00:00
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/// Returns request's headers.
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2019-03-26 18:41:38 +00:00
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pub fn headers(&self) -> &HeaderMap {
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&self.head().headers
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}
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2019-03-27 03:45:00 +00:00
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/// Set a body and return previous body value
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pub fn map_body<F, U>(mut self, f: F) -> ClientResponse<U>
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where
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F: FnOnce(&mut ResponseHead, Payload<S>) -> Payload<U>,
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{
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let payload = f(&mut self.head, self.payload);
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ClientResponse {
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payload,
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head: self.head,
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}
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}
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2019-03-26 18:41:38 +00:00
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}
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2019-03-27 03:45:00 +00:00
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impl<S> ClientResponse<S>
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where
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2019-11-19 03:55:17 +00:00
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S: Stream<Item = Result<Bytes, PayloadError>>,
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2019-03-27 03:45:00 +00:00
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{
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2019-04-01 18:51:18 +00:00
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/// Loads http response's body.
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2019-04-01 18:29:26 +00:00
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pub fn body(&mut self) -> MessageBody<S> {
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2019-03-27 03:45:00 +00:00
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MessageBody::new(self)
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}
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2019-04-01 18:51:18 +00:00
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/// Loads and parse `application/json` encoded body.
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/// Return `JsonBody<T>` future. It resolves to a `T` value.
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///
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/// Returns error:
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///
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/// * content type is not `application/json`
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/// * content length is greater than 256k
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pub fn json<T: DeserializeOwned>(&mut self) -> JsonBody<S, T> {
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JsonBody::new(self)
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}
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2019-03-27 03:45:00 +00:00
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}
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impl<S> Stream for ClientResponse<S>
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where
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2019-11-19 03:55:17 +00:00
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S: Stream<Item = Result<Bytes, PayloadError>> + Unpin,
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2019-03-27 03:45:00 +00:00
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{
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2019-11-19 03:55:17 +00:00
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type Item = Result<Bytes, PayloadError>;
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2019-03-26 18:41:38 +00:00
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2019-12-08 06:31:16 +00:00
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fn poll_next(
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self: Pin<&mut Self>,
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cx: &mut Context<'_>,
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) -> Poll<Option<Self::Item>> {
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2019-11-19 03:55:17 +00:00
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Pin::new(&mut self.get_mut().payload).poll_next(cx)
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2019-03-26 18:41:38 +00:00
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}
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}
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2019-03-27 03:45:00 +00:00
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impl<S> fmt::Debug for ClientResponse<S> {
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2019-12-08 06:31:16 +00:00
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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2019-03-26 18:41:38 +00:00
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writeln!(f, "\nClientResponse {:?} {}", self.version(), self.status(),)?;
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writeln!(f, " headers:")?;
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for (key, val) in self.headers().iter() {
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writeln!(f, " {:?}: {:?}", key, val)?;
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}
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Ok(())
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}
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}
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2019-03-27 03:45:00 +00:00
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/// Future that resolves to a complete http message body.
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pub struct MessageBody<S> {
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length: Option<usize>,
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err: Option<PayloadError>,
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2019-04-02 17:53:44 +00:00
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fut: Option<ReadBody<S>>,
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2019-03-27 03:45:00 +00:00
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}
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impl<S> MessageBody<S>
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where
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2019-11-19 03:55:17 +00:00
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S: Stream<Item = Result<Bytes, PayloadError>>,
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2019-03-27 03:45:00 +00:00
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{
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/// Create `MessageBody` for request.
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2019-04-01 18:29:26 +00:00
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pub fn new(res: &mut ClientResponse<S>) -> MessageBody<S> {
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2019-03-27 03:45:00 +00:00
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let mut len = None;
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2019-04-06 22:02:02 +00:00
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if let Some(l) = res.headers().get(&CONTENT_LENGTH) {
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2019-03-27 03:45:00 +00:00
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if let Ok(s) = l.to_str() {
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if let Ok(l) = s.parse::<usize>() {
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len = Some(l)
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} else {
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return Self::err(PayloadError::UnknownLength);
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}
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} else {
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return Self::err(PayloadError::UnknownLength);
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}
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}
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MessageBody {
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length: len,
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err: None,
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2019-04-02 17:53:44 +00:00
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fut: Some(ReadBody::new(res.take_payload(), 262_144)),
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2019-03-27 03:45:00 +00:00
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}
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}
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/// Change max size of payload. By default max size is 256Kb
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pub fn limit(mut self, limit: usize) -> Self {
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2019-04-02 17:53:44 +00:00
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if let Some(ref mut fut) = self.fut {
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fut.limit = limit;
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}
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2019-03-27 03:45:00 +00:00
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self
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}
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fn err(e: PayloadError) -> Self {
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MessageBody {
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fut: None,
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err: Some(e),
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length: None,
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}
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}
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}
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impl<S> Future for MessageBody<S>
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where
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2019-11-19 03:55:17 +00:00
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S: Stream<Item = Result<Bytes, PayloadError>> + Unpin,
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2019-03-27 03:45:00 +00:00
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{
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2019-11-19 03:55:17 +00:00
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type Output = Result<Bytes, PayloadError>;
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2019-03-27 03:45:00 +00:00
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2019-12-08 06:31:16 +00:00
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fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
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2019-11-19 03:55:17 +00:00
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let this = self.get_mut();
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if let Some(err) = this.err.take() {
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return Poll::Ready(Err(err));
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2019-03-27 03:45:00 +00:00
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}
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2019-11-19 03:55:17 +00:00
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if let Some(len) = this.length.take() {
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if len > this.fut.as_ref().unwrap().limit {
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return Poll::Ready(Err(PayloadError::Overflow));
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2019-03-27 03:45:00 +00:00
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}
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}
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2019-11-19 03:55:17 +00:00
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Pin::new(&mut this.fut.as_mut().unwrap()).poll(cx)
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2019-03-27 03:45:00 +00:00
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}
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}
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2019-03-27 04:54:57 +00:00
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2019-04-01 18:51:18 +00:00
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/// Response's payload json parser, it resolves to a deserialized `T` value.
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///
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/// Returns error:
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///
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/// * content type is not `application/json`
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/// * content length is greater than 64k
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pub struct JsonBody<S, U> {
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length: Option<usize>,
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err: Option<JsonPayloadError>,
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2019-04-02 17:53:44 +00:00
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fut: Option<ReadBody<S>>,
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_t: PhantomData<U>,
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2019-04-01 18:51:18 +00:00
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}
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impl<S, U> JsonBody<S, U>
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where
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2019-11-19 03:55:17 +00:00
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S: Stream<Item = Result<Bytes, PayloadError>>,
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2019-04-01 18:51:18 +00:00
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U: DeserializeOwned,
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{
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/// Create `JsonBody` for request.
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pub fn new(req: &mut ClientResponse<S>) -> Self {
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// check content-type
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let json = if let Ok(Some(mime)) = req.mime_type() {
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mime.subtype() == mime::JSON || mime.suffix() == Some(mime::JSON)
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} else {
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false
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};
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if !json {
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return JsonBody {
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length: None,
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fut: None,
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err: Some(JsonPayloadError::ContentType),
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2019-04-02 17:53:44 +00:00
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_t: PhantomData,
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2019-04-01 18:51:18 +00:00
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};
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}
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let mut len = None;
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2019-04-06 22:02:02 +00:00
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if let Some(l) = req.headers().get(&CONTENT_LENGTH) {
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2019-04-01 18:51:18 +00:00
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if let Ok(s) = l.to_str() {
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if let Ok(l) = s.parse::<usize>() {
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len = Some(l)
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}
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}
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}
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JsonBody {
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length: len,
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err: None,
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2019-04-02 17:53:44 +00:00
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fut: Some(ReadBody::new(req.take_payload(), 65536)),
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_t: PhantomData,
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2019-04-01 18:51:18 +00:00
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}
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}
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/// Change max size of payload. By default max size is 64Kb
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pub fn limit(mut self, limit: usize) -> Self {
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2019-04-02 17:53:44 +00:00
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if let Some(ref mut fut) = self.fut {
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fut.limit = limit;
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}
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2019-04-01 18:51:18 +00:00
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self
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}
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}
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2019-11-19 03:55:17 +00:00
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impl<T, U> Unpin for JsonBody<T, U>
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where
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T: Stream<Item = Result<Bytes, PayloadError>> + Unpin,
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U: DeserializeOwned,
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{
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}
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2019-04-01 18:51:18 +00:00
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impl<T, U> Future for JsonBody<T, U>
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where
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2019-11-19 03:55:17 +00:00
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T: Stream<Item = Result<Bytes, PayloadError>> + Unpin,
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2019-04-04 17:59:34 +00:00
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U: DeserializeOwned,
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2019-04-01 18:51:18 +00:00
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{
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2019-11-19 03:55:17 +00:00
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type Output = Result<U, JsonPayloadError>;
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2019-04-01 18:51:18 +00:00
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2019-12-08 06:31:16 +00:00
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fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
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2019-04-01 18:51:18 +00:00
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if let Some(err) = self.err.take() {
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2019-11-19 03:55:17 +00:00
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return Poll::Ready(Err(err));
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2019-04-01 18:51:18 +00:00
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}
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if let Some(len) = self.length.take() {
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2019-04-02 17:53:44 +00:00
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if len > self.fut.as_ref().unwrap().limit {
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2019-11-19 03:55:17 +00:00
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return Poll::Ready(Err(JsonPayloadError::Payload(
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|
PayloadError::Overflow,
|
|
|
|
)));
|
2019-04-01 18:51:18 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2019-11-19 03:55:17 +00:00
|
|
|
let body = ready!(Pin::new(&mut self.get_mut().fut.as_mut().unwrap()).poll(cx))?;
|
|
|
|
Poll::Ready(serde_json::from_slice::<U>(&body).map_err(JsonPayloadError::from))
|
2019-04-02 17:53:44 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
struct ReadBody<S> {
|
|
|
|
stream: Payload<S>,
|
|
|
|
buf: BytesMut,
|
|
|
|
limit: usize,
|
|
|
|
}
|
|
|
|
|
|
|
|
impl<S> ReadBody<S> {
|
|
|
|
fn new(stream: Payload<S>, limit: usize) -> Self {
|
|
|
|
Self {
|
|
|
|
stream,
|
|
|
|
buf: BytesMut::with_capacity(std::cmp::min(limit, 32768)),
|
|
|
|
limit,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl<S> Future for ReadBody<S>
|
|
|
|
where
|
2019-11-19 03:55:17 +00:00
|
|
|
S: Stream<Item = Result<Bytes, PayloadError>> + Unpin,
|
2019-04-02 17:53:44 +00:00
|
|
|
{
|
2019-11-19 03:55:17 +00:00
|
|
|
type Output = Result<Bytes, PayloadError>;
|
|
|
|
|
2019-12-08 06:31:16 +00:00
|
|
|
fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
|
2019-11-19 03:55:17 +00:00
|
|
|
let this = self.get_mut();
|
2019-04-02 17:53:44 +00:00
|
|
|
|
|
|
|
loop {
|
2019-11-19 03:55:17 +00:00
|
|
|
return match Pin::new(&mut this.stream).poll_next(cx)? {
|
|
|
|
Poll::Ready(Some(chunk)) => {
|
|
|
|
if (this.buf.len() + chunk.len()) > this.limit {
|
|
|
|
Poll::Ready(Err(PayloadError::Overflow))
|
2019-04-02 17:53:44 +00:00
|
|
|
} else {
|
2019-11-19 03:55:17 +00:00
|
|
|
this.buf.extend_from_slice(&chunk);
|
2019-04-02 17:53:44 +00:00
|
|
|
continue;
|
|
|
|
}
|
2019-04-01 18:51:18 +00:00
|
|
|
}
|
2019-12-05 17:35:43 +00:00
|
|
|
Poll::Ready(None) => Poll::Ready(Ok(this.buf.split().freeze())),
|
2019-11-19 03:55:17 +00:00
|
|
|
Poll::Pending => Poll::Pending,
|
2019-04-02 17:53:44 +00:00
|
|
|
};
|
|
|
|
}
|
2019-04-01 18:51:18 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2019-03-27 04:54:57 +00:00
|
|
|
#[cfg(test)]
|
|
|
|
mod tests {
|
|
|
|
use super::*;
|
2019-04-01 18:51:18 +00:00
|
|
|
use serde::{Deserialize, Serialize};
|
2019-03-27 04:54:57 +00:00
|
|
|
|
2019-05-12 15:34:51 +00:00
|
|
|
use crate::{http::header, test::TestResponse};
|
2019-03-27 04:54:57 +00:00
|
|
|
|
2019-11-26 05:25:50 +00:00
|
|
|
#[actix_rt::test]
|
|
|
|
async fn test_body() {
|
|
|
|
let mut req = TestResponse::with_header(header::CONTENT_LENGTH, "xxxx").finish();
|
|
|
|
match req.body().await.err().unwrap() {
|
|
|
|
PayloadError::UnknownLength => (),
|
|
|
|
_ => unreachable!("error"),
|
|
|
|
}
|
2019-03-27 04:54:57 +00:00
|
|
|
|
2019-11-26 05:25:50 +00:00
|
|
|
let mut req =
|
|
|
|
TestResponse::with_header(header::CONTENT_LENGTH, "1000000").finish();
|
|
|
|
match req.body().await.err().unwrap() {
|
|
|
|
PayloadError::Overflow => (),
|
|
|
|
_ => unreachable!("error"),
|
|
|
|
}
|
2019-03-27 04:54:57 +00:00
|
|
|
|
2019-11-26 05:25:50 +00:00
|
|
|
let mut req = TestResponse::default()
|
|
|
|
.set_payload(Bytes::from_static(b"test"))
|
|
|
|
.finish();
|
|
|
|
assert_eq!(req.body().await.ok().unwrap(), Bytes::from_static(b"test"));
|
|
|
|
|
|
|
|
let mut req = TestResponse::default()
|
|
|
|
.set_payload(Bytes::from_static(b"11111111111111"))
|
|
|
|
.finish();
|
|
|
|
match req.body().limit(5).await.err().unwrap() {
|
|
|
|
PayloadError::Overflow => (),
|
|
|
|
_ => unreachable!("error"),
|
|
|
|
}
|
2019-03-27 04:54:57 +00:00
|
|
|
}
|
2019-04-01 18:51:18 +00:00
|
|
|
|
|
|
|
#[derive(Serialize, Deserialize, PartialEq, Debug)]
|
|
|
|
struct MyObject {
|
|
|
|
name: String,
|
|
|
|
}
|
|
|
|
|
|
|
|
fn json_eq(err: JsonPayloadError, other: JsonPayloadError) -> bool {
|
|
|
|
match err {
|
2019-04-02 17:53:44 +00:00
|
|
|
JsonPayloadError::Payload(PayloadError::Overflow) => match other {
|
|
|
|
JsonPayloadError::Payload(PayloadError::Overflow) => true,
|
2019-04-01 18:51:18 +00:00
|
|
|
_ => false,
|
|
|
|
},
|
|
|
|
JsonPayloadError::ContentType => match other {
|
|
|
|
JsonPayloadError::ContentType => true,
|
|
|
|
_ => false,
|
|
|
|
},
|
|
|
|
_ => false,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2019-11-26 05:25:50 +00:00
|
|
|
#[actix_rt::test]
|
|
|
|
async fn test_json_body() {
|
|
|
|
let mut req = TestResponse::default().finish();
|
|
|
|
let json = JsonBody::<_, MyObject>::new(&mut req).await;
|
|
|
|
assert!(json_eq(json.err().unwrap(), JsonPayloadError::ContentType));
|
|
|
|
|
|
|
|
let mut req = TestResponse::default()
|
|
|
|
.header(
|
|
|
|
header::CONTENT_TYPE,
|
|
|
|
header::HeaderValue::from_static("application/text"),
|
|
|
|
)
|
|
|
|
.finish();
|
|
|
|
let json = JsonBody::<_, MyObject>::new(&mut req).await;
|
|
|
|
assert!(json_eq(json.err().unwrap(), JsonPayloadError::ContentType));
|
|
|
|
|
|
|
|
let mut req = TestResponse::default()
|
|
|
|
.header(
|
|
|
|
header::CONTENT_TYPE,
|
|
|
|
header::HeaderValue::from_static("application/json"),
|
|
|
|
)
|
|
|
|
.header(
|
|
|
|
header::CONTENT_LENGTH,
|
|
|
|
header::HeaderValue::from_static("10000"),
|
|
|
|
)
|
|
|
|
.finish();
|
|
|
|
|
|
|
|
let json = JsonBody::<_, MyObject>::new(&mut req).limit(100).await;
|
|
|
|
assert!(json_eq(
|
|
|
|
json.err().unwrap(),
|
|
|
|
JsonPayloadError::Payload(PayloadError::Overflow)
|
|
|
|
));
|
|
|
|
|
|
|
|
let mut req = TestResponse::default()
|
|
|
|
.header(
|
|
|
|
header::CONTENT_TYPE,
|
|
|
|
header::HeaderValue::from_static("application/json"),
|
|
|
|
)
|
|
|
|
.header(
|
|
|
|
header::CONTENT_LENGTH,
|
|
|
|
header::HeaderValue::from_static("16"),
|
|
|
|
)
|
|
|
|
.set_payload(Bytes::from_static(b"{\"name\": \"test\"}"))
|
|
|
|
.finish();
|
|
|
|
|
|
|
|
let json = JsonBody::<_, MyObject>::new(&mut req).await;
|
|
|
|
assert_eq!(
|
|
|
|
json.ok().unwrap(),
|
|
|
|
MyObject {
|
|
|
|
name: "test".to_owned()
|
|
|
|
}
|
|
|
|
);
|
2019-04-01 18:51:18 +00:00
|
|
|
}
|
2019-03-27 04:54:57 +00:00
|
|
|
}
|