mirror of
https://github.com/actix/actix-web.git
synced 2024-06-02 13:29:24 +00:00
704 lines
21 KiB
Rust
704 lines
21 KiB
Rust
use std::marker::PhantomData;
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use std::pin::Pin;
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use std::task::{Context, Poll};
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use std::{fmt, io, net, rc};
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use actix_codec::{AsyncRead, AsyncWrite, Framed};
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use actix_server_config::{
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Io as ServerIo, IoStream, Protocol, ServerConfig as SrvConfig,
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};
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use actix_service::{IntoServiceFactory, Service, ServiceFactory};
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use bytes::{Buf, BufMut, Bytes, BytesMut};
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use futures::{ready, Future};
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use h2::server::{self, Handshake};
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use pin_project::{pin_project, project};
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use crate::body::MessageBody;
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use crate::builder::HttpServiceBuilder;
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use crate::cloneable::CloneableService;
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use crate::config::{KeepAlive, ServiceConfig};
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use crate::error::{DispatchError, Error};
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use crate::helpers::DataFactory;
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use crate::request::Request;
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use crate::response::Response;
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use crate::{h1, h2::Dispatcher};
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/// `ServiceFactory` HTTP1.1/HTTP2 transport implementation
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pub struct HttpService<T, P, S, B, X = h1::ExpectHandler, U = h1::UpgradeHandler<T>> {
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srv: S,
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cfg: ServiceConfig,
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expect: X,
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upgrade: Option<U>,
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on_connect: Option<rc::Rc<dyn Fn(&T) -> Box<dyn DataFactory>>>,
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_t: PhantomData<(T, P, B)>,
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}
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impl<T, S, B> HttpService<T, (), S, B>
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where
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S: ServiceFactory<Config = SrvConfig, Request = Request>,
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S::Error: Into<Error> + 'static,
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S::InitError: fmt::Debug,
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S::Response: Into<Response<B>> + 'static,
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<S::Service as Service>::Future: 'static,
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B: MessageBody + 'static,
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{
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/// Create builder for `HttpService` instance.
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pub fn build() -> HttpServiceBuilder<T, S> {
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HttpServiceBuilder::new()
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}
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}
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impl<T, P, S, B> HttpService<T, P, S, B>
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where
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S: ServiceFactory<Config = SrvConfig, Request = Request>,
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S::Error: Into<Error> + 'static,
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S::InitError: fmt::Debug,
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S::Response: Into<Response<B>> + 'static,
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<S::Service as Service>::Future: 'static,
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B: MessageBody + 'static,
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{
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/// Create new `HttpService` instance.
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pub fn new<F: IntoServiceFactory<S>>(service: F) -> Self {
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let cfg = ServiceConfig::new(KeepAlive::Timeout(5), 5000, 0);
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HttpService {
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cfg,
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srv: service.into_factory(),
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expect: h1::ExpectHandler,
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upgrade: None,
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on_connect: None,
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_t: PhantomData,
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}
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}
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/// Create new `HttpService` instance with config.
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pub(crate) fn with_config<F: IntoServiceFactory<S>>(
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cfg: ServiceConfig,
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service: F,
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) -> Self {
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HttpService {
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cfg,
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srv: service.into_factory(),
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expect: h1::ExpectHandler,
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upgrade: None,
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on_connect: None,
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_t: PhantomData,
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}
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}
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}
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impl<T, P, S, B, X, U> HttpService<T, P, S, B, X, U>
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where
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S: ServiceFactory<Config = SrvConfig, Request = Request>,
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S::Error: Into<Error> + 'static,
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S::InitError: fmt::Debug,
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S::Response: Into<Response<B>> + 'static,
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<S::Service as Service>::Future: 'static,
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B: MessageBody,
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{
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/// Provide service for `EXPECT: 100-Continue` support.
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///
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/// Service get called with request that contains `EXPECT` header.
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/// Service must return request in case of success, in that case
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/// request will be forwarded to main service.
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pub fn expect<X1>(self, expect: X1) -> HttpService<T, P, S, B, X1, U>
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where
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X1: ServiceFactory<Config = SrvConfig, Request = Request, Response = Request>,
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X1::Error: Into<Error>,
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X1::InitError: fmt::Debug,
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<X1::Service as Service>::Future: 'static,
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{
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HttpService {
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expect,
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cfg: self.cfg,
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srv: self.srv,
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upgrade: self.upgrade,
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on_connect: self.on_connect,
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_t: PhantomData,
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}
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}
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/// Provide service for custom `Connection: UPGRADE` support.
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///
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/// If service is provided then normal requests handling get halted
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/// and this service get called with original request and framed object.
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pub fn upgrade<U1>(self, upgrade: Option<U1>) -> HttpService<T, P, S, B, X, U1>
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where
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U1: ServiceFactory<
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Config = SrvConfig,
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Request = (Request, Framed<T, h1::Codec>),
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Response = (),
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>,
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U1::Error: fmt::Display,
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U1::InitError: fmt::Debug,
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<U1::Service as Service>::Future: 'static,
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{
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HttpService {
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upgrade,
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cfg: self.cfg,
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srv: self.srv,
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expect: self.expect,
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on_connect: self.on_connect,
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_t: PhantomData,
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}
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}
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/// Set on connect callback.
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pub(crate) fn on_connect(
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mut self,
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f: Option<rc::Rc<dyn Fn(&T) -> Box<dyn DataFactory>>>,
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) -> Self {
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self.on_connect = f;
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self
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}
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}
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impl<T, P, S, B, X, U> ServiceFactory for HttpService<T, P, S, B, X, U>
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where
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T: IoStream,
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S: ServiceFactory<Config = SrvConfig, Request = Request>,
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S::Error: Into<Error> + 'static,
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S::InitError: fmt::Debug,
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S::Response: Into<Response<B>> + 'static,
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<S::Service as Service>::Future: 'static,
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B: MessageBody + 'static,
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X: ServiceFactory<Config = SrvConfig, Request = Request, Response = Request>,
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X::Error: Into<Error>,
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X::InitError: fmt::Debug,
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<X::Service as Service>::Future: 'static,
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U: ServiceFactory<
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Config = SrvConfig,
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Request = (Request, Framed<T, h1::Codec>),
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Response = (),
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>,
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U::Error: fmt::Display,
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U::InitError: fmt::Debug,
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<U::Service as Service>::Future: 'static,
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{
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type Config = SrvConfig;
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type Request = ServerIo<T, P>;
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type Response = ();
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type Error = DispatchError;
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type InitError = ();
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type Service = HttpServiceHandler<T, P, S::Service, B, X::Service, U::Service>;
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type Future = HttpServiceResponse<T, P, S, B, X, U>;
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fn new_service(&self, cfg: &SrvConfig) -> Self::Future {
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HttpServiceResponse {
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fut: self.srv.new_service(cfg),
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fut_ex: Some(self.expect.new_service(cfg)),
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fut_upg: self.upgrade.as_ref().map(|f| f.new_service(cfg)),
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expect: None,
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upgrade: None,
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on_connect: self.on_connect.clone(),
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cfg: Some(self.cfg.clone()),
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_t: PhantomData,
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}
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}
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}
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#[doc(hidden)]
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#[pin_project]
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pub struct HttpServiceResponse<
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T,
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P,
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S: ServiceFactory,
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B,
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X: ServiceFactory,
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U: ServiceFactory,
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> {
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#[pin]
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fut: S::Future,
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#[pin]
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fut_ex: Option<X::Future>,
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#[pin]
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fut_upg: Option<U::Future>,
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expect: Option<X::Service>,
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upgrade: Option<U::Service>,
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on_connect: Option<rc::Rc<dyn Fn(&T) -> Box<dyn DataFactory>>>,
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cfg: Option<ServiceConfig>,
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_t: PhantomData<(T, P, B)>,
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}
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impl<T, P, S, B, X, U> Future for HttpServiceResponse<T, P, S, B, X, U>
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where
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T: IoStream,
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S: ServiceFactory<Request = Request>,
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S::Error: Into<Error> + 'static,
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S::InitError: fmt::Debug,
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S::Response: Into<Response<B>> + 'static,
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<S::Service as Service>::Future: 'static,
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B: MessageBody + 'static,
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X: ServiceFactory<Request = Request, Response = Request>,
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X::Error: Into<Error>,
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X::InitError: fmt::Debug,
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<X::Service as Service>::Future: 'static,
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U: ServiceFactory<Request = (Request, Framed<T, h1::Codec>), Response = ()>,
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U::Error: fmt::Display,
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U::InitError: fmt::Debug,
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<U::Service as Service>::Future: 'static,
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{
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type Output =
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Result<HttpServiceHandler<T, P, S::Service, B, X::Service, U::Service>, ()>;
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fn poll(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Self::Output> {
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let mut this = self.as_mut().project();
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if let Some(fut) = this.fut_ex.as_pin_mut() {
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let expect = ready!(fut
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.poll(cx)
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.map_err(|e| log::error!("Init http service error: {:?}", e)))?;
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this = self.as_mut().project();
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*this.expect = Some(expect);
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this.fut_ex.set(None);
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}
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if let Some(fut) = this.fut_upg.as_pin_mut() {
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let upgrade = ready!(fut
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.poll(cx)
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.map_err(|e| log::error!("Init http service error: {:?}", e)))?;
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this = self.as_mut().project();
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*this.upgrade = Some(upgrade);
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this.fut_ex.set(None);
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}
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let result = ready!(this
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.fut
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.poll(cx)
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.map_err(|e| log::error!("Init http service error: {:?}", e)));
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Poll::Ready(result.map(|service| {
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let this = self.as_mut().project();
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HttpServiceHandler::new(
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this.cfg.take().unwrap(),
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service,
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this.expect.take().unwrap(),
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this.upgrade.take(),
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this.on_connect.clone(),
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)
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}))
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}
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}
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/// `Service` implementation for http transport
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pub struct HttpServiceHandler<T, P, S, B, X, U> {
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srv: CloneableService<S>,
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expect: CloneableService<X>,
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upgrade: Option<CloneableService<U>>,
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cfg: ServiceConfig,
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on_connect: Option<rc::Rc<dyn Fn(&T) -> Box<dyn DataFactory>>>,
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_t: PhantomData<(T, P, B, X)>,
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}
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impl<T, P, S, B, X, U> HttpServiceHandler<T, P, S, B, X, U>
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where
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S: Service<Request = Request>,
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S::Error: Into<Error> + 'static,
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S::Future: 'static,
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S::Response: Into<Response<B>> + 'static,
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B: MessageBody + 'static,
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X: Service<Request = Request, Response = Request>,
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X::Error: Into<Error>,
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U: Service<Request = (Request, Framed<T, h1::Codec>), Response = ()>,
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U::Error: fmt::Display,
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{
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fn new(
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cfg: ServiceConfig,
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srv: S,
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expect: X,
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upgrade: Option<U>,
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on_connect: Option<rc::Rc<dyn Fn(&T) -> Box<dyn DataFactory>>>,
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) -> HttpServiceHandler<T, P, S, B, X, U> {
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HttpServiceHandler {
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cfg,
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on_connect,
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srv: CloneableService::new(srv),
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expect: CloneableService::new(expect),
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upgrade: upgrade.map(CloneableService::new),
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_t: PhantomData,
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}
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}
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}
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impl<T, P, S, B, X, U> Service for HttpServiceHandler<T, P, S, B, X, U>
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where
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T: IoStream,
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S: Service<Request = Request>,
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S::Error: Into<Error> + 'static,
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S::Future: 'static,
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S::Response: Into<Response<B>> + 'static,
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B: MessageBody + 'static,
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X: Service<Request = Request, Response = Request>,
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X::Error: Into<Error>,
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U: Service<Request = (Request, Framed<T, h1::Codec>), Response = ()>,
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U::Error: fmt::Display,
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{
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type Request = ServerIo<T, P>;
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type Response = ();
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type Error = DispatchError;
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type Future = HttpServiceHandlerResponse<T, S, B, X, U>;
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fn poll_ready(&mut self, cx: &mut Context) -> Poll<Result<(), Self::Error>> {
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let ready = self
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.expect
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.poll_ready(cx)
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.map_err(|e| {
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let e = e.into();
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log::error!("Http service readiness error: {:?}", e);
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DispatchError::Service(e)
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})?
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.is_ready();
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let ready = self
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.srv
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.poll_ready(cx)
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.map_err(|e| {
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let e = e.into();
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log::error!("Http service readiness error: {:?}", e);
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DispatchError::Service(e)
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})?
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.is_ready()
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&& ready;
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if ready {
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Poll::Ready(Ok(()))
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} else {
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Poll::Pending
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}
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}
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fn call(&mut self, req: Self::Request) -> Self::Future {
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let (io, _, proto) = req.into_parts();
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let on_connect = if let Some(ref on_connect) = self.on_connect {
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Some(on_connect(&io))
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} else {
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None
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};
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match proto {
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Protocol::Http2 => {
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let peer_addr = io.peer_addr();
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let io = Io {
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inner: io,
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unread: None,
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};
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HttpServiceHandlerResponse {
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state: State::Handshake(Some((
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server::handshake(io),
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self.cfg.clone(),
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self.srv.clone(),
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peer_addr,
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on_connect,
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))),
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}
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}
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Protocol::Http10 | Protocol::Http11 => HttpServiceHandlerResponse {
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state: State::H1(h1::Dispatcher::new(
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io,
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self.cfg.clone(),
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self.srv.clone(),
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self.expect.clone(),
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self.upgrade.clone(),
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on_connect,
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)),
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},
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_ => HttpServiceHandlerResponse {
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state: State::Unknown(Some((
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io,
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BytesMut::with_capacity(14),
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self.cfg.clone(),
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self.srv.clone(),
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self.expect.clone(),
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self.upgrade.clone(),
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on_connect,
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))),
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},
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}
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}
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}
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|
|
#[pin_project]
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enum State<T, S, B, X, U>
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|
where
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S: Service<Request = Request>,
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S::Future: 'static,
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|
S::Error: Into<Error>,
|
|
T: IoStream,
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B: MessageBody,
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X: Service<Request = Request, Response = Request>,
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|
X::Error: Into<Error>,
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U: Service<Request = (Request, Framed<T, h1::Codec>), Response = ()>,
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|
U::Error: fmt::Display,
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|
{
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H1(#[pin] h1::Dispatcher<T, S, B, X, U>),
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H2(#[pin] Dispatcher<Io<T>, S, B>),
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|
Unknown(
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|
Option<(
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|
T,
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|
BytesMut,
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|
ServiceConfig,
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|
CloneableService<S>,
|
|
CloneableService<X>,
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|
Option<CloneableService<U>>,
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|
Option<Box<dyn DataFactory>>,
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)>,
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),
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|
Handshake(
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Option<(
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Handshake<Io<T>, Bytes>,
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|
ServiceConfig,
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|
CloneableService<S>,
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|
Option<net::SocketAddr>,
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|
Option<Box<dyn DataFactory>>,
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)>,
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),
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}
|
|
|
|
#[pin_project]
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|
pub struct HttpServiceHandlerResponse<T, S, B, X, U>
|
|
where
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|
T: IoStream,
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|
S: Service<Request = Request>,
|
|
S::Error: Into<Error> + 'static,
|
|
S::Future: 'static,
|
|
S::Response: Into<Response<B>> + 'static,
|
|
B: MessageBody + 'static,
|
|
X: Service<Request = Request, Response = Request>,
|
|
X::Error: Into<Error>,
|
|
U: Service<Request = (Request, Framed<T, h1::Codec>), Response = ()>,
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|
U::Error: fmt::Display,
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|
{
|
|
#[pin]
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|
state: State<T, S, B, X, U>,
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|
}
|
|
|
|
const HTTP2_PREFACE: [u8; 14] = *b"PRI * HTTP/2.0";
|
|
|
|
impl<T, S, B, X, U> Future for HttpServiceHandlerResponse<T, S, B, X, U>
|
|
where
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|
T: IoStream,
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|
S: Service<Request = Request>,
|
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S::Error: Into<Error> + 'static,
|
|
S::Future: 'static,
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|
S::Response: Into<Response<B>> + 'static,
|
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B: MessageBody,
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|
X: Service<Request = Request, Response = Request>,
|
|
X::Error: Into<Error>,
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U: Service<Request = (Request, Framed<T, h1::Codec>), Response = ()>,
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U::Error: fmt::Display,
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|
{
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type Output = Result<(), DispatchError>;
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|
|
|
fn poll(self: Pin<&mut Self>, cx: &mut Context) -> Poll<Self::Output> {
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self.project().state.poll(cx)
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}
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|
}
|
|
|
|
impl<T, S, B, X, U> State<T, S, B, X, U>
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|
where
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|
T: IoStream,
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|
S: Service<Request = Request>,
|
|
S::Error: Into<Error> + 'static,
|
|
S::Response: Into<Response<B>> + 'static,
|
|
B: MessageBody + 'static,
|
|
X: Service<Request = Request, Response = Request>,
|
|
X::Error: Into<Error>,
|
|
U: Service<Request = (Request, Framed<T, h1::Codec>), Response = ()>,
|
|
U::Error: fmt::Display,
|
|
{
|
|
#[project]
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|
fn poll(
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|
mut self: Pin<&mut Self>,
|
|
cx: &mut Context,
|
|
) -> Poll<Result<(), DispatchError>> {
|
|
#[project]
|
|
match self.as_mut().project() {
|
|
State::H1(disp) => disp.poll(cx),
|
|
State::H2(disp) => disp.poll(cx),
|
|
State::Unknown(ref mut data) => {
|
|
if let Some(ref mut item) = data {
|
|
loop {
|
|
// Safety - we only write to the returned slice.
|
|
let b = unsafe { item.1.bytes_mut() };
|
|
let n = ready!(Pin::new(&mut item.0).poll_read(cx, b))?;
|
|
if n == 0 {
|
|
return Poll::Ready(Ok(()));
|
|
}
|
|
// Safety - we know that 'n' bytes have
|
|
// been initialized via the contract of
|
|
// 'poll_read'
|
|
unsafe { item.1.advance_mut(n) };
|
|
if item.1.len() >= HTTP2_PREFACE.len() {
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
panic!()
|
|
}
|
|
let (io, buf, cfg, srv, expect, upgrade, on_connect) =
|
|
data.take().unwrap();
|
|
if buf[..14] == HTTP2_PREFACE[..] {
|
|
let peer_addr = io.peer_addr();
|
|
let io = Io {
|
|
inner: io,
|
|
unread: Some(buf),
|
|
};
|
|
self.set(State::Handshake(Some((
|
|
server::handshake(io),
|
|
cfg,
|
|
srv,
|
|
peer_addr,
|
|
on_connect,
|
|
))));
|
|
} else {
|
|
self.set(State::H1(h1::Dispatcher::with_timeout(
|
|
io,
|
|
h1::Codec::new(cfg.clone()),
|
|
cfg,
|
|
buf,
|
|
None,
|
|
srv,
|
|
expect,
|
|
upgrade,
|
|
on_connect,
|
|
)))
|
|
}
|
|
self.poll(cx)
|
|
}
|
|
State::Handshake(ref mut data) => {
|
|
let conn = if let Some(ref mut item) = data {
|
|
match Pin::new(&mut item.0).poll(cx) {
|
|
Poll::Ready(Ok(conn)) => conn,
|
|
Poll::Ready(Err(err)) => {
|
|
trace!("H2 handshake error: {}", err);
|
|
return Poll::Ready(Err(err.into()));
|
|
}
|
|
Poll::Pending => return Poll::Pending,
|
|
}
|
|
} else {
|
|
panic!()
|
|
};
|
|
let (_, cfg, srv, peer_addr, on_connect) = data.take().unwrap();
|
|
self.set(State::H2(Dispatcher::new(
|
|
srv, conn, on_connect, cfg, None, peer_addr,
|
|
)));
|
|
self.poll(cx)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Wrapper for `AsyncRead + AsyncWrite` types
|
|
#[pin_project::pin_project]
|
|
struct Io<T> {
|
|
unread: Option<BytesMut>,
|
|
#[pin]
|
|
inner: T,
|
|
}
|
|
|
|
impl<T: io::Read> io::Read for Io<T> {
|
|
fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
|
|
if let Some(mut bytes) = self.unread.take() {
|
|
let size = std::cmp::min(buf.len(), bytes.len());
|
|
buf[..size].copy_from_slice(&bytes[..size]);
|
|
if bytes.len() > size {
|
|
bytes.split_to(size);
|
|
self.unread = Some(bytes);
|
|
}
|
|
Ok(size)
|
|
} else {
|
|
self.inner.read(buf)
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<T: io::Write> io::Write for Io<T> {
|
|
fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
|
|
self.inner.write(buf)
|
|
}
|
|
fn flush(&mut self) -> io::Result<()> {
|
|
self.inner.flush()
|
|
}
|
|
}
|
|
|
|
impl<T: AsyncRead> AsyncRead for Io<T> {
|
|
// unsafe fn initializer(&self) -> io::Initializer {
|
|
// self.get_mut().inner.initializer()
|
|
// }
|
|
|
|
unsafe fn prepare_uninitialized_buffer(&self, buf: &mut [u8]) -> bool {
|
|
self.inner.prepare_uninitialized_buffer(buf)
|
|
}
|
|
|
|
fn poll_read(
|
|
self: Pin<&mut Self>,
|
|
cx: &mut Context<'_>,
|
|
buf: &mut [u8],
|
|
) -> Poll<io::Result<usize>> {
|
|
let this = self.project();
|
|
|
|
if let Some(mut bytes) = this.unread.take() {
|
|
let size = std::cmp::min(buf.len(), bytes.len());
|
|
buf[..size].copy_from_slice(&bytes[..size]);
|
|
if bytes.len() > size {
|
|
bytes.split_to(size);
|
|
*this.unread = Some(bytes);
|
|
}
|
|
Poll::Ready(Ok(size))
|
|
} else {
|
|
this.inner.poll_read(cx, buf)
|
|
}
|
|
}
|
|
|
|
// fn poll_read_vectored(
|
|
// self: Pin<&mut Self>,
|
|
// cx: &mut Context<'_>,
|
|
// bufs: &mut [io::IoSliceMut<'_>],
|
|
// ) -> Poll<io::Result<usize>> {
|
|
// self.get_mut().inner.poll_read_vectored(cx, bufs)
|
|
// }
|
|
}
|
|
|
|
impl<T: AsyncWrite> tokio_io::AsyncWrite for Io<T> {
|
|
fn poll_write(
|
|
self: Pin<&mut Self>,
|
|
cx: &mut Context<'_>,
|
|
buf: &[u8],
|
|
) -> Poll<io::Result<usize>> {
|
|
self.project().inner.poll_write(cx, buf)
|
|
}
|
|
|
|
fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
|
|
self.project().inner.poll_flush(cx)
|
|
}
|
|
|
|
fn poll_shutdown(
|
|
self: Pin<&mut Self>,
|
|
cx: &mut Context<'_>,
|
|
) -> Poll<io::Result<()>> {
|
|
self.project().inner.poll_shutdown(cx)
|
|
}
|
|
}
|
|
|
|
impl<T: IoStream> actix_server_config::IoStream for Io<T> {
|
|
#[inline]
|
|
fn peer_addr(&self) -> Option<net::SocketAddr> {
|
|
self.inner.peer_addr()
|
|
}
|
|
|
|
#[inline]
|
|
fn set_nodelay(&mut self, nodelay: bool) -> io::Result<()> {
|
|
self.inner.set_nodelay(nodelay)
|
|
}
|
|
|
|
#[inline]
|
|
fn set_linger(&mut self, dur: Option<std::time::Duration>) -> io::Result<()> {
|
|
self.inner.set_linger(dur)
|
|
}
|
|
|
|
#[inline]
|
|
fn set_keepalive(&mut self, dur: Option<std::time::Duration>) -> io::Result<()> {
|
|
self.inner.set_keepalive(dur)
|
|
}
|
|
}
|