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Merge branch 'master' into feature/sockets-vec

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Nikolay Kim 2018-03-11 16:38:17 -07:00 committed by GitHub
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9 changed files with 104 additions and 96 deletions
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9
CHANGES.md
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@ -1,5 +1,14 @@
# Changes
## 0.4.7 (2018-03-11)
* Fix panic on unknown content encoding
* Fix connection get closed too early
* Fix steraming response handling for http/2
## 0.4.6 (2018-03-10)
* Fix client cookie handling

7
examples/diesel/src/main.rs
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@ -1,8 +1,8 @@
//! Actix web diesel example
//!
//! Diesel does not support tokio, so we have to run it in separate threads.
//! Actix supports sync actors by default, so we going to create sync actor that will
//! use diesel. Technically sync actors are worker style actors, multiple of them
//! Actix supports sync actors by default, so we going to create sync actor that use diesel.
//! Technically sync actors are worker style actors, multiple of them
//! can run in parallel and process messages from same queue.
extern crate serde;
extern crate serde_json;
@ -38,6 +38,7 @@ struct State {
fn index(req: HttpRequest<State>) -> Box<Future<Item=HttpResponse, Error=Error>> {
let name = &req.match_info()["name"];
// send async `CreateUser` message to a `DbExecutor`
req.state().db.send(CreateUser{name: name.to_owned()})
.from_err()
.and_then(|res| {
@ -54,7 +55,7 @@ fn main() {
let _ = env_logger::init();
let sys = actix::System::new("diesel-example");
// Start db executor actors
// Start 3 db executor actors
let addr = SyncArbiter::start(3, || {
DbExecutor(SqliteConnection::establish("test.db").unwrap())
});

19
guide/src/qs_4.md
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@ -238,9 +238,10 @@ Both methods could be combined. (i.e Async response with streaming body)
## Different return types (Either)
Sometimes you need to return different types of responses. For example
you can do error check and return error, otherwise return async response.
you can do error check and return error and return async response otherwise.
Or any result that requires two different types.
For this case [*Either*](../actix_web/enum.Either.html) type can be used.
*Either* allows to combine two different responder types into a single type.
```rust
# extern crate actix_web;
@ -253,23 +254,23 @@ use actix_web::{Either, Error, HttpResponse, httpcodes};
type RegisterResult = Either<HttpResponse, Box<Future<Item=HttpResponse, Error=Error>>>;
fn index(req: HttpRequest) -> RegisterResult {
if true { // <- choose variant A
if is_a_variant() { // <- choose variant A
Either::A(
httpcodes::HttpBadRequest.with_body("Bad data"))
} else {
Either::B( // <- variant B
Either::B( // <- variant B
result(HttpResponse::Ok()
.content_type("text/html")
.body(format!("Hello!"))
.map_err(|e| e.into())).responder())
}
}
fn main() {
Application::new()
.resource("/register", |r| r.f(index))
.finish();
}
# fn is_a_variant() -> bool { true }
# fn main() {
# Application::new()
# .resource("/register", |r| r.f(index))
# .finish();
# }
```
## Tokio core handle

8
src/handler.rs
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@ -34,7 +34,7 @@ pub trait Responder {
fn respond_to(self, req: HttpRequest) -> Result<Self::Item, Self::Error>;
}
/// Combines two different responders types into a single type
/// Combines two different responder types into a single type
///
/// ```rust
/// # extern crate actix_web;
@ -46,18 +46,20 @@ pub trait Responder {
///
/// type RegisterResult = Either<HttpResponse, Box<Future<Item=HttpResponse, Error=Error>>>;
///
///
/// fn index(req: HttpRequest) -> RegisterResult {
/// if true { // <- choose variant A
/// if is_a_variant() { // <- choose variant A
/// Either::A(
/// httpcodes::HttpBadRequest.with_body("Bad data"))
/// } else {
/// Either::B( // <- variant B
/// Either::B( // <- variant B
/// result(HttpResponse::Ok()
/// .content_type("text/html")
/// .body(format!("Hello!"))
/// .map_err(|e| e.into())).responder())
/// }
/// }
/// # fn is_a_variant() -> bool { true }
/// # fn main() {}
/// ```
#[derive(Debug)]

3
src/header/mod.rs
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@ -165,8 +165,7 @@ impl<'a> From<&'a str> for ContentEncoding {
"br" => ContentEncoding::Br,
"gzip" => ContentEncoding::Gzip,
"deflate" => ContentEncoding::Deflate,
"identity" => ContentEncoding::Identity,
_ => ContentEncoding::Auto,
_ => ContentEncoding::Identity,
}
}
}

4
src/server/encoding.rs
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@ -466,8 +466,8 @@ impl ContentEncoder {
GzEncoder::new(transfer, Compression::default())),
ContentEncoding::Br => ContentEncoder::Br(
BrotliEncoder::new(transfer, 5)),
ContentEncoding::Identity => ContentEncoder::Identity(transfer),
ContentEncoding::Auto => unreachable!()
ContentEncoding::Identity | ContentEncoding::Auto =>
ContentEncoder::Identity(transfer),
}
}

21
src/server/h1.rs
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@ -110,18 +110,6 @@ impl<T, H> Http1<T, H>
}
}
fn poll_completed(&mut self, shutdown: bool) -> Result<bool, ()> {
// check stream state
match self.stream.poll_completed(shutdown) {
Ok(Async::Ready(_)) => Ok(true),
Ok(Async::NotReady) => Ok(false),
Err(err) => {
debug!("Error sending data: {}", err);
Err(())
}
}
}
// TODO: refactor
pub fn poll_io(&mut self) -> Poll<bool, ()> {
// read incoming data
@ -272,8 +260,13 @@ impl<T, H> Http1<T, H>
}
// check stream state
if !self.poll_completed(true)? {
return Ok(Async::NotReady)
match self.stream.poll_completed(self.tasks.is_empty()) {
Ok(Async::NotReady) => return Ok(Async::NotReady),
Err(err) => {
debug!("Error sending data: {}", err);
return Err(())
}
_ => (),
}
// deal with keep-alive

38
src/server/h2.rs
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@ -26,7 +26,7 @@ use payload::{Payload, PayloadWriter, PayloadStatus};
use super::h2writer::H2Writer;
use super::encoding::PayloadType;
use super::settings::WorkerSettings;
use super::{HttpHandler, HttpHandlerTask};
use super::{HttpHandler, HttpHandlerTask, Writer};
bitflags! {
struct Flags: u8 {
@ -109,22 +109,27 @@ impl<T, H> Http2<T, H>
loop {
match item.task.poll_io(&mut item.stream) {
Ok(Async::Ready(ready)) => {
item.flags.insert(EntryFlags::EOF);
if ready {
item.flags.insert(EntryFlags::FINISHED);
item.flags.insert(
EntryFlags::EOF | EntryFlags::FINISHED);
} else {
item.flags.insert(EntryFlags::EOF);
}
not_ready = false;
},
Ok(Async::NotReady) => {
if item.payload.need_read() == PayloadStatus::Read && !retry
if item.payload.need_read() == PayloadStatus::Read
&& !retry
{
continue
}
},
Err(err) => {
error!("Unhandled error: {}", err);
item.flags.insert(EntryFlags::EOF);
item.flags.insert(EntryFlags::ERROR);
item.flags.insert(
EntryFlags::EOF |
EntryFlags::ERROR |
EntryFlags::WRITE_DONE);
item.stream.reset(Reason::INTERNAL_ERROR);
}
}
@ -138,18 +143,32 @@ impl<T, H> Http2<T, H>
item.flags.insert(EntryFlags::FINISHED);
},
Err(err) => {
item.flags.insert(EntryFlags::ERROR);
item.flags.insert(EntryFlags::FINISHED);
item.flags.insert(
EntryFlags::ERROR | EntryFlags::WRITE_DONE |
EntryFlags::FINISHED);
error!("Unhandled error: {}", err);
}
}
}
if !item.flags.contains(EntryFlags::WRITE_DONE) {
match item.stream.poll_completed(false) {
Ok(Async::NotReady) => (),
Ok(Async::Ready(_)) => {
not_ready = false;
item.flags.insert(EntryFlags::WRITE_DONE);
}
Err(_err) => {
item.flags.insert(EntryFlags::ERROR);
}
}
}
}
// cleanup finished tasks
while !self.tasks.is_empty() {
if self.tasks[0].flags.contains(EntryFlags::EOF) &&
self.tasks[0].flags.contains(EntryFlags::FINISHED) ||
self.tasks[0].flags.contains(EntryFlags::WRITE_DONE) ||
self.tasks[0].flags.contains(EntryFlags::ERROR)
{
self.tasks.pop_front();
@ -251,6 +270,7 @@ bitflags! {
const REOF = 0b0000_0010;
const ERROR = 0b0000_0100;
const FINISHED = 0b0000_1000;
const WRITE_DONE = 0b0001_0000;
}
}

91
src/server/h2writer.rs
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@ -24,6 +24,7 @@ bitflags! {
const STARTED = 0b0000_0001;
const DISCONNECTED = 0b0000_0010;
const EOF = 0b0000_0100;
const RESERVED = 0b0000_1000;
}
}
@ -56,55 +57,6 @@ impl H2Writer {
stream.send_reset(reason)
}
}
fn write_to_stream(&mut self) -> io::Result<WriterState> {
if !self.flags.contains(Flags::STARTED) {
return Ok(WriterState::Done)
}
if let Some(ref mut stream) = self.stream {
if self.buffer.is_empty() {
if self.flags.contains(Flags::EOF) {
let _ = stream.send_data(Bytes::new(), true);
}
return Ok(WriterState::Done)
}
loop {
match stream.poll_capacity() {
Ok(Async::NotReady) => {
if self.buffer.len() > self.buffer_capacity {
return Ok(WriterState::Pause)
} else {
return Ok(WriterState::Done)
}
}
Ok(Async::Ready(None)) => {
return Ok(WriterState::Done)
}
Ok(Async::Ready(Some(cap))) => {
let len = self.buffer.len();
let bytes = self.buffer.split_to(cmp::min(cap, len));
let eof = self.buffer.is_empty() && self.flags.contains(Flags::EOF);
self.written += bytes.len() as u64;
if let Err(err) = stream.send_data(bytes.freeze(), eof) {
return Err(io::Error::new(io::ErrorKind::Other, err))
} else if !self.buffer.is_empty() {
let cap = cmp::min(self.buffer.len(), CHUNK_SIZE);
stream.reserve_capacity(cap);
} else {
return Ok(WriterState::Pause)
}
}
Err(_) => {
return Err(io::Error::new(io::ErrorKind::Other, ""))
}
}
}
}
Ok(WriterState::Done)
}
}
impl Writer for H2Writer {
@ -172,6 +124,7 @@ impl Writer for H2Writer {
self.written = bytes.len() as u64;
self.encoder.write(bytes)?;
if let Some(ref mut stream) = self.stream {
self.flags.insert(Flags::RESERVED);
stream.reserve_capacity(cmp::min(self.buffer.len(), CHUNK_SIZE));
}
Ok(WriterState::Pause)
@ -195,7 +148,7 @@ impl Writer for H2Writer {
}
}
if self.buffer.len() > MAX_WRITE_BUFFER_SIZE {
if self.buffer.len() > self.buffer_capacity {
Ok(WriterState::Pause)
} else {
Ok(WriterState::Done)
@ -217,10 +170,40 @@ impl Writer for H2Writer {
}
fn poll_completed(&mut self, _shutdown: bool) -> Poll<(), io::Error> {
match self.write_to_stream() {
Ok(WriterState::Done) => Ok(Async::Ready(())),
Ok(WriterState::Pause) => Ok(Async::NotReady),
Err(err) => Err(err)
if !self.flags.contains(Flags::STARTED) {
return Ok(Async::NotReady);
}
if let Some(ref mut stream) = self.stream {
// reserve capacity
if !self.flags.contains(Flags::RESERVED) && !self.buffer.is_empty() {
self.flags.insert(Flags::RESERVED);
stream.reserve_capacity(cmp::min(self.buffer.len(), CHUNK_SIZE));
}
loop {
match stream.poll_capacity() {
Ok(Async::NotReady) => return Ok(Async::NotReady),
Ok(Async::Ready(None)) => return Ok(Async::Ready(())),
Ok(Async::Ready(Some(cap))) => {
let len = self.buffer.len();
let bytes = self.buffer.split_to(cmp::min(cap, len));
let eof = self.buffer.is_empty() && self.flags.contains(Flags::EOF);
self.written += bytes.len() as u64;
if let Err(e) = stream.send_data(bytes.freeze(), eof) {
return Err(io::Error::new(io::ErrorKind::Other, e))
} else if !self.buffer.is_empty() {
let cap = cmp::min(self.buffer.len(), CHUNK_SIZE);
stream.reserve_capacity(cap);
} else {
return Ok(Async::NotReady)
}
}
Err(e) => return Err(io::Error::new(io::ErrorKind::Other, e)),
}
}
}
return Ok(Async::NotReady)
}
}