1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
//! Request/Response body buffering with support spooled to a temp file on disk
//!
//! Use it in actix-web middleware. For example this is used at [actix-web-detached-jws-middleware](https://crates.io/crates/actix-web-detached-jws-middleware)
//!
//! # Example:
//! ```ignore
//! use std::{
//! cell::RefCell,
//! pin::Pin,
//! rc::Rc,
//! sync::Arc,
//! task::{Context, Poll},
//! };
//!
//! use actix_service::Transform;
//! use actix_web::{
//! dev::{Body, Service, ServiceRequest, ServiceResponse},
//! web,
//! web::BytesMut,
//! App, Error, HttpMessage, HttpResponse, HttpServer, Responder,
//! };
//! use actix_web_buffering::{
//! enable_request_buffering, enable_response_buffering, FileBufferingStreamWrapper,
//! };
//! use futures::{
//! future::{ok, Ready},
//! stream::StreamExt,
//! Future, FutureExt,
//! };
//!
//! #[actix_web::main]
//! async fn main() -> std::io::Result<()> {
//! let wrapper = FileBufferingStreamWrapper::new()
//! .tmp_dir(std::env::temp_dir())
//! .threshold(1024 * 30)
//! .produce_chunk_size(1024 * 30)
//! .buffer_limit(Some(1024 * 30 * 10));
//!
//! let wrapper = Arc::new(wrapper);
//!
//! HttpServer::new(move || {
//! let r1 = Arc::clone(&wrapper);
//! let r2 = Arc::clone(&wrapper);
//! App::new()
//! .wrap(Example(r1))
//! .wrap(Example(r2))
//! .service(web::resource("/").route(web::post().to(echo)))
//! })
//! .bind("127.0.0.1:8080")?
//! .run()
//! .await
//! }
//!
//! async fn echo(req_body: String) -> impl Responder {
//! HttpResponse::Ok().body(req_body)
//! }
//!
//! struct Example(Arc<FileBufferingStreamWrapper>);
//!
//! impl<S> Transform<S> for Example
//! where
//! S: Service<Request = ServiceRequest, Response = ServiceResponse<Body>, Error = Error> + 'static,
//! {
//! type Request = ServiceRequest;
//! type Response = ServiceResponse<Body>;
//! type Error = Error;
//! type InitError = ();
//! type Transform = ExampleMiddleware<S>;
//! type Future = Ready<Result<Self::Transform, Self::InitError>>;
//!
//! fn new_transform(&self, service: S) -> Self::Future {
//! ok(ExampleMiddleware {
//! service: Rc::new(RefCell::new(service)),
//! wrapper: Arc::clone(&self.0),
//! })
//! }
//! }
//! pub struct ExampleMiddleware<S> {
//! service: Rc<RefCell<S>>,
//! wrapper: Arc<FileBufferingStreamWrapper>,
//! }
//!
//! impl<S> Service for ExampleMiddleware<S>
//! where
//! S: Service<Request = ServiceRequest, Response = ServiceResponse<Body>, Error = Error> + 'static,
//! {
//! type Request = ServiceRequest;
//! type Response = ServiceResponse<Body>;
//! type Error = Error;
//! type Future = Pin<Box<dyn Future<Output = Result<Self::Response, Self::Error>>>>;
//!
//! fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
//! self.service.poll_ready(cx)
//! }
//!
//! fn call(&mut self, mut req: ServiceRequest) -> Self::Future {
//! let mut svc = self.service.clone();
//! let wrapper = self.wrapper.clone();
//!
//! async move {
//! enable_request_buffering(&wrapper, &mut req);
//!
//! let mut stream = req.take_payload();
//! let mut body = BytesMut::new();
//! while let Some(chunk) = stream.next().await {
//! body.extend_from_slice(&chunk.unwrap());
//! }
//! req.set_payload(stream);
//! println!("request body: {:?}", body);
//!
//! let svc_res = svc.call(req).await?;
//!
//! let mut svc_res = enable_response_buffering(&wrapper, svc_res);
//!
//! let mut stream = svc_res.take_body();
//! let mut body = BytesMut::new();
//! while let Some(chunk) = stream.next().await {
//! body.extend_from_slice(&chunk.unwrap());
//! }
//! let svc_res = svc_res.map_body(|_, _| stream);
//! println!("response body: {:?}", body);
//!
//! Ok(svc_res)
//! }
//! .boxed_local()
//! }
//! }
//! ```
pub use crate;