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Fix body propagation in Response::from_error. #760

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This commit is contained in:
Nikolay Kim 2019-04-10 12:43:31 -07:00
parent 9bb40c249f
commit 9d82d4dfb9
10 changed files with 92 additions and 27 deletions
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4
CHANGES.md
View file

@ -18,6 +18,10 @@
* Move multipart support to actix-multipart crate
### Fixed
* Fix body propagation in Response::from_error. #760
## [1.0.0-alpha.3] - 2019-04-02

1
Cargo.toml
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@ -29,6 +29,7 @@ members = [
"awc",
"actix-http",
"actix-files",
"actix-framed",
"actix-session",
"actix-multipart",
"actix-web-actors",

32
actix-http/src/error.rs
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@ -1,11 +1,13 @@
//! Error and Result module
use std::cell::RefCell;
use std::io::Write;
use std::str::Utf8Error;
use std::string::FromUtf8Error;
use std::{fmt, io, result};
pub use actix_threadpool::BlockingError;
use actix_utils::timeout::TimeoutError;
use bytes::BytesMut;
use derive_more::{Display, From};
use futures::Canceled;
use http::uri::InvalidUri;
@ -17,7 +19,9 @@ use serde_urlencoded::ser::Error as FormError;
use tokio_timer::Error as TimerError;
// re-export for convinience
use crate::body::Body;
pub use crate::cookie::ParseError as CookieParseError;
use crate::helpers::Writer;
use crate::response::Response;
/// A specialized [`Result`](https://doc.rust-lang.org/std/result/enum.Result.html)
@ -57,6 +61,18 @@ pub trait ResponseError: fmt::Debug + fmt::Display {
fn error_response(&self) -> Response {
Response::new(StatusCode::INTERNAL_SERVER_ERROR)
}
/// Constructs an error response
fn render_response(&self) -> Response {
let mut resp = self.error_response();
let mut buf = BytesMut::new();
let _ = write!(Writer(&mut buf), "{}", self);
resp.headers_mut().insert(
header::CONTENT_TYPE,
header::HeaderValue::from_static("text/plain"),
);
resp.set_body(Body::from(buf))
}
}
impl fmt::Display for Error {
@ -477,7 +493,16 @@ where
{
fn error_response(&self) -> Response {
match self.status {
InternalErrorType::Status(st) => Response::new(st),
InternalErrorType::Status(st) => {
let mut res = Response::new(st);
let mut buf = BytesMut::new();
let _ = write!(Writer(&mut buf), "{}", self);
res.headers_mut().insert(
header::CONTENT_TYPE,
header::HeaderValue::from_static("text/plain"),
);
res.set_body(Body::from(buf))
}
InternalErrorType::Response(ref resp) => {
if let Some(resp) = resp.borrow_mut().take() {
resp
@ -487,6 +512,11 @@ where
}
}
}
/// Constructs an error response
fn render_response(&self) -> Response {
self.error_response()
}
}
/// Convert Response to a Error

15
actix-http/src/helpers.rs
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@ -1,6 +1,7 @@
use std::{io, mem, ptr, slice};
use bytes::{BufMut, BytesMut};
use http::Version;
use std::{mem, ptr, slice};
const DEC_DIGITS_LUT: &[u8] = b"0001020304050607080910111213141516171819\
2021222324252627282930313233343536373839\
@ -167,6 +168,18 @@ pub(crate) fn convert_usize(mut n: usize, bytes: &mut BytesMut) {
}
}
pub(crate) struct Writer<'a>(pub &'a mut BytesMut);
impl<'a> io::Write for Writer<'a> {
fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
self.0.extend_from_slice(buf);
Ok(buf.len())
}
fn flush(&mut self) -> io::Result<()> {
Ok(())
}
}
#[cfg(test)]
mod tests {
use super::*;

22
actix-http/src/response.rs
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@ -1,7 +1,7 @@
//! Http response
use std::cell::{Ref, RefMut};
use std::io::Write;
use std::{fmt, io, str};
use std::{fmt, str};
use bytes::{BufMut, Bytes, BytesMut};
use futures::future::{ok, FutureResult, IntoFuture};
@ -51,13 +51,9 @@ impl Response<Body> {
/// Constructs an error response
#[inline]
pub fn from_error(error: Error) -> Response {
let mut resp = error.as_response_error().error_response();
let mut buf = BytesMut::new();
let _ = write!(Writer(&mut buf), "{}", error);
resp.headers_mut()
.insert(header::CONTENT_TYPE, HeaderValue::from_static("text/plain"));
let mut resp = error.as_response_error().render_response();
resp.error = Some(error);
resp.set_body(Body::from(buf))
resp
}
/// Convert response to response with body
@ -309,18 +305,6 @@ impl<'a> Iterator for CookieIter<'a> {
}
}
pub struct Writer<'a>(pub &'a mut BytesMut);
impl<'a> io::Write for Writer<'a> {
fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
self.0.extend_from_slice(buf);
Ok(buf.len())
}
fn flush(&mut self) -> io::Result<()> {
Ok(())
}
}
/// An HTTP response builder
///
/// This type can be used to construct an instance of `Response` through a

2
src/app.rs
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@ -64,7 +64,7 @@ where
InitError = (),
>,
{
/// Set application data. Applicatin data could be accessed
/// Set application data. Application data could be accessed
/// by using `Data<T>` extractor where `T` is data type.
///
/// **Note**: http server accepts an application factory rather than

2
src/data.rs
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@ -25,7 +25,7 @@ pub(crate) trait DataFactoryResult {
/// during application configuration process
/// with `App::data()` method.
///
/// Applicatin data could be accessed by using `Data<T>`
/// Application data could be accessed by using `Data<T>`
/// extractor where `T` is data type.
///
/// **Note**: http server accepts an application factory rather than

4
src/error.rs
View file

@ -31,7 +31,7 @@ pub enum UrlencodedError {
#[display(fmt = "Can not decode chunked transfer encoding")]
Chunked,
/// Payload size is bigger than allowed. (default: 256kB)
#[display(fmt = "Urlencoded payload size is bigger than allowed. (default: 256kB)")]
#[display(fmt = "Urlencoded payload size is bigger than allowed (default: 256kB)")]
Overflow,
/// Payload size is now known
#[display(fmt = "Payload size is now known")]
@ -66,7 +66,7 @@ impl ResponseError for UrlencodedError {
#[derive(Debug, Display, From)]
pub enum JsonPayloadError {
/// Payload size is bigger than allowed. (default: 32kB)
#[display(fmt = "Json payload size is bigger than allowed.")]
#[display(fmt = "Json payload size is bigger than allowed")]
Overflow,
/// Content type error
#[display(fmt = "Content type error")]

35
src/types/json.rs
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@ -365,8 +365,10 @@ mod tests {
use serde_derive::{Deserialize, Serialize};
use super::*;
use crate::error::InternalError;
use crate::http::header;
use crate::test::{block_on, TestRequest};
use crate::HttpResponse;
#[derive(Serialize, Deserialize, PartialEq, Debug)]
struct MyObject {
@ -405,6 +407,37 @@ mod tests {
assert_eq!(resp.body().bin_ref(), b"{\"name\":\"test\"}");
}
#[test]
fn test_custom_error_responder() {
let (req, mut pl) = TestRequest::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\"}"))
.route_data(JsonConfig::default().limit(10).error_handler(|err, _| {
let msg = MyObject {
name: "invalid request".to_string(),
};
let resp = HttpResponse::BadRequest()
.body(serde_json::to_string(&msg).unwrap());
InternalError::from_response(err, resp).into()
}))
.to_http_parts();
let s = block_on(Json::<MyObject>::from_request(&req, &mut pl));
let mut resp = Response::from_error(s.err().unwrap().into());
assert_eq!(resp.status(), StatusCode::BAD_REQUEST);
let body = block_on(resp.take_body().concat2()).unwrap();
let msg: MyObject = serde_json::from_slice(&body).unwrap();
assert_eq!(msg.name, "invalid request");
}
#[test]
fn test_extract() {
let (req, mut pl) = TestRequest::default()
@ -443,7 +476,7 @@ mod tests {
let s = block_on(Json::<MyObject>::from_request(&req, &mut pl));
assert!(format!("{}", s.err().unwrap())
.contains("Json payload size is bigger than allowed."));
.contains("Json payload size is bigger than allowed"));
let (req, mut pl) = TestRequest::default()
.header(

2
test-server/src/lib.rs
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@ -107,7 +107,7 @@ impl TestServer {
TestServerRuntime { addr, rt, client }
}
/// Get firat available unused address
/// Get first available unused address
pub fn unused_addr() -> net::SocketAddr {
let addr: net::SocketAddr = "127.0.0.1:0".parse().unwrap();
let socket = TcpBuilder::new_v4().unwrap();