Remove awc (#1979)

* Remove unused awc dep

* Replace awc pict-rs client with reqwest

* Reinstate 30 second pict-rs timeout
This commit is contained in:
Riley 2021-12-08 09:56:43 -06:00 committed by GitHub
parent 7d07bc16ae
commit 0ed3856ef1
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GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 111 additions and 85 deletions

43
Cargo.lock generated
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@ -181,7 +181,6 @@ dependencies = [
"actix-utils",
"derive_more",
"futures-core",
"http",
"log",
"pin-project-lite",
"tokio-rustls",
@ -388,39 +387,6 @@ version = "1.0.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
[[package]]
name = "awc"
version = "3.0.0-beta.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e9fef22345ed9fc111adf13c3b1e48473136a2669a73680b82d18d6e71e720fe"
dependencies = [
"actix-codec",
"actix-http",
"actix-rt",
"actix-service",
"actix-tls",
"actix-utils",
"ahash",
"base64 0.13.0",
"bytes",
"cfg-if",
"derive_more",
"futures-core",
"futures-util",
"h2",
"http",
"itoa",
"log",
"mime",
"percent-encoding",
"pin-project-lite",
"rand 0.8.4",
"serde",
"serde_json",
"serde_urlencoded",
"tokio",
]
[[package]]
name = "background-jobs"
version = "0.11.0"
@ -1726,7 +1692,6 @@ dependencies = [
"actix-web",
"anyhow",
"async-trait",
"awc",
"background-jobs",
"base64 0.13.0",
"bcrypt",
@ -1788,7 +1753,6 @@ dependencies = [
"actix-web",
"anyhow",
"async-trait",
"awc",
"background-jobs",
"base64 0.13.0",
"bcrypt",
@ -1834,7 +1798,6 @@ dependencies = [
"anyhow",
"assert-json-diff",
"async-trait",
"awc",
"background-jobs",
"bcrypt",
"chrono",
@ -1968,9 +1931,9 @@ dependencies = [
"actix-web",
"actix-web-actors",
"anyhow",
"awc",
"chrono",
"diesel",
"futures",
"lemmy_api_common",
"lemmy_apub",
"lemmy_db_schema",
@ -1979,10 +1942,13 @@ dependencies = [
"lemmy_utils",
"lemmy_websocket",
"once_cell",
"reqwest",
"reqwest-middleware",
"rss",
"serde",
"sha2",
"strum",
"tokio",
"tracing",
"url",
]
@ -3167,6 +3133,7 @@ dependencies = [
"serde_urlencoded",
"tokio",
"tokio-native-tls",
"tokio-util",
"url",
"wasm-bindgen",
"wasm-bindgen-futures",

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@ -30,7 +30,6 @@ serde = { version = "1.0.130", features = ["derive"] }
actix = "0.12.0"
actix-web = { version = "4.0.0-beta.9", default-features = false }
actix-rt = { version = "2.2.0", default-features = false }
awc = { version = "3.0.0-beta.8", default-features = false }
rand = "0.8.4"
strum = "0.21.0"
strum_macros = "0.21.1"

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@ -25,7 +25,6 @@ serde = { version = "1.0.130", features = ["derive"] }
actix = "0.12.0"
actix-web = { version = "4.0.0-beta.9", default-features = false }
actix-rt = { version = "2.2.0", default-features = false }
awc = { version = "3.0.0-beta.8", default-features = false }
tracing = "0.1.29"
rand = "0.8.4"
strum = "0.21.0"

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@ -30,7 +30,6 @@ serde_with = "1.10.0"
actix = "0.12.0"
actix-web = { version = "4.0.0-beta.9", default-features = false }
actix-rt = { version = "2.2.0", default-features = false }
awc = { version = "3.0.0-beta.8", default-features = false }
tracing = "0.1.29"
rand = "0.8.4"
strum = "0.21.0"

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@ -26,10 +26,13 @@ actix-http = "3.0.0-beta.10"
sha2 = "0.9.8"
anyhow = "1.0.44"
chrono = { version = "0.4.19", features = ["serde"] }
futures = "0.3.18"
reqwest = { version = "0.11.7", features = ["stream"] }
reqwest-middleware = "0.1.2"
rss = "1.10.0"
serde = { version = "1.0.130", features = ["derive"] }
awc = { version = "3.0.0-beta.8", default-features = false }
url = { version = "2.2.2", features = ["serde"] }
strum = "0.21.0"
once_cell = "1.8.0"
tracing = "0.1.29"
tokio = { version = "1", features = ["sync"] }

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@ -1,18 +1,18 @@
use actix_http::http::header::ACCEPT_ENCODING;
use actix_http::{
header::{HeaderName, HOST},
http::header::ACCEPT_ENCODING,
};
use actix_web::{body::BodyStream, http::StatusCode, web::Data, *};
use anyhow::anyhow;
use awc::Client;
use futures::stream::{Stream, StreamExt};
use lemmy_utils::{claims::Claims, rate_limit::RateLimit, LemmyError};
use lemmy_websocket::LemmyContext;
use reqwest::Body;
use reqwest_middleware::{ClientWithMiddleware, RequestBuilder};
use serde::{Deserialize, Serialize};
use std::time::Duration;
pub fn config(cfg: &mut web::ServiceConfig, rate_limit: &RateLimit) {
let client = Client::builder()
.header("User-Agent", "pict-rs-frontend, v0.1.0")
.timeout(Duration::from_secs(30))
.finish();
pub fn config(cfg: &mut web::ServiceConfig, client: ClientWithMiddleware, rate_limit: &RateLimit) {
cfg
.app_data(Data::new(client))
.service(
@ -43,10 +43,34 @@ struct PictrsParams {
thumbnail: Option<String>,
}
fn adapt_request(
request: &HttpRequest,
client: &ClientWithMiddleware,
url: String,
) -> RequestBuilder {
// remove accept-encoding header so that pictrs doesnt compress the response
const INVALID_HEADERS: &[HeaderName] = &[ACCEPT_ENCODING, HOST];
let client_request = client
.request(request.method().clone(), url)
.timeout(Duration::from_secs(30));
request
.headers()
.iter()
.fold(client_request, |client_req, (key, value)| {
if INVALID_HEADERS.contains(key) {
client_req
} else {
client_req.header(key, value)
}
})
}
async fn upload(
req: HttpRequest,
body: web::Payload,
client: web::Data<Client>,
client: web::Data<ClientWithMiddleware>,
context: web::Data<LemmyContext>,
) -> Result<HttpResponse, Error> {
// TODO: check rate limit here
@ -58,32 +82,31 @@ async fn upload(
return Ok(HttpResponse::Unauthorized().finish());
};
let mut client_req = client.request_from(
format!("{}/image", pictrs_url(context.settings().pictrs_url)?),
req.head(),
);
// remove content-encoding header so that pictrs doesnt send gzipped response
client_req.headers_mut().remove(ACCEPT_ENCODING);
let image_url = format!("{}/image", pictrs_url(context.settings().pictrs_url)?);
let mut client_req = adapt_request(&req, &client, image_url);
if let Some(addr) = req.head().peer_addr {
client_req = client_req.insert_header(("X-Forwarded-For", addr.to_string()))
client_req = client_req.header("X-Forwarded-For", addr.to_string())
};
let mut res = client_req
.send_stream(body)
let res = client_req
.body(Body::wrap_stream(make_send(body)))
.send()
.await
.map_err(error::ErrorBadRequest)?;
let status = res.status();
let images = res.json::<Images>().await.map_err(error::ErrorBadRequest)?;
Ok(HttpResponse::build(res.status()).json(images))
Ok(HttpResponse::build(status).json(images))
}
async fn full_res(
filename: web::Path<String>,
web::Query(params): web::Query<PictrsParams>,
req: HttpRequest,
client: web::Data<Client>,
client: web::Data<ClientWithMiddleware>,
context: web::Data<LemmyContext>,
) -> Result<HttpResponse, Error> {
let name = &filename.into_inner();
@ -119,20 +142,19 @@ async fn full_res(
async fn image(
url: String,
req: HttpRequest,
client: web::Data<Client>,
client: web::Data<ClientWithMiddleware>,
) -> Result<HttpResponse, Error> {
let mut client_req = client.request_from(url, req.head());
client_req.headers_mut().remove(ACCEPT_ENCODING);
let mut client_req = adapt_request(&req, &client, url);
if let Some(addr) = req.head().peer_addr {
client_req = client_req.insert_header(("X-Forwarded-For", addr.to_string()))
};
client_req = client_req.header("X-Forwarded-For", addr.to_string());
}
let res = client_req
.no_decompress()
.send()
.await
.map_err(error::ErrorBadRequest)?;
if let Some(addr) = req.head().peer_addr {
client_req = client_req.header("X-Forwarded-For", addr.to_string());
}
let res = client_req.send().await.map_err(error::ErrorBadRequest)?;
if res.status() == StatusCode::NOT_FOUND {
return Ok(HttpResponse::NotFound().finish());
@ -144,13 +166,13 @@ async fn image(
client_res.insert_header((name.clone(), value.clone()));
}
Ok(client_res.body(BodyStream::new(res)))
Ok(client_res.body(BodyStream::new(res.bytes_stream())))
}
async fn delete(
components: web::Path<(String, String)>,
req: HttpRequest,
client: web::Data<Client>,
client: web::Data<ClientWithMiddleware>,
context: web::Data<LemmyContext>,
) -> Result<HttpResponse, Error> {
let (token, file) = components.into_inner();
@ -162,22 +184,59 @@ async fn delete(
&file
);
let mut client_req = client.request_from(url, req.head());
client_req.headers_mut().remove(ACCEPT_ENCODING);
let mut client_req = adapt_request(&req, &client, url);
if let Some(addr) = req.head().peer_addr {
client_req = client_req.insert_header(("X-Forwarded-For", addr.to_string()))
};
client_req = client_req.header("X-Forwarded-For", addr.to_string());
}
let res = client_req
.no_decompress()
.send()
.await
.map_err(error::ErrorBadRequest)?;
let res = client_req.send().await.map_err(error::ErrorBadRequest)?;
Ok(HttpResponse::build(res.status()).body(BodyStream::new(res)))
Ok(HttpResponse::build(res.status()).body(BodyStream::new(res.bytes_stream())))
}
fn pictrs_url(pictrs_url: Option<String>) -> Result<String, LemmyError> {
pictrs_url.ok_or_else(|| anyhow!("images_disabled").into())
}
fn make_send<S>(mut stream: S) -> impl Stream<Item = S::Item> + Send + Unpin + 'static
where
S: Stream + Unpin + 'static,
S::Item: Send,
{
// NOTE: the 8 here is arbitrary
let (tx, rx) = tokio::sync::mpsc::channel(8);
// NOTE: spawning stream into a new task can potentially hit this bug:
// - https://github.com/actix/actix-web/issues/1679
//
// Since 4.0.0-beta.2 this issue is incredibly less frequent. I have not personally reproduced it.
// That said, it is still technically possible to encounter.
actix_web::rt::spawn(async move {
while let Some(res) = stream.next().await {
if tx.send(res).await.is_err() {
break;
}
}
});
SendStream { rx }
}
struct SendStream<T> {
rx: tokio::sync::mpsc::Receiver<T>,
}
impl<T> Stream for SendStream<T>
where
T: Send,
{
type Item = T;
fn poll_next(
mut self: std::pin::Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> std::task::Poll<Option<Self::Item>> {
std::pin::Pin::new(&mut self.rx).poll_recv(cx)
}
}

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@ -135,7 +135,7 @@ async fn main() -> Result<(), LemmyError> {
.configure(|cfg| api_routes::config(cfg, &rate_limiter))
.configure(|cfg| lemmy_apub::http::routes::config(cfg, &settings))
.configure(feeds::config)
.configure(|cfg| images::config(cfg, &rate_limiter))
.configure(|cfg| images::config(cfg, client.clone(), &rate_limiter))
.configure(nodeinfo::config)
.configure(|cfg| webfinger::config(cfg, &settings))
})