mirror of
https://github.com/denoland/deno.git
synced 2024-11-25 15:29:32 -05:00
551 lines
15 KiB
Rust
551 lines
15 KiB
Rust
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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use std::borrow::Cow;
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use std::cell::RefCell;
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use std::pin::Pin;
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use std::rc::Rc;
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use std::task::Context;
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use std::task::Poll;
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use bytes::Bytes;
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use deno_core::futures::stream::Peekable;
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use deno_core::futures::Future;
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use deno_core::futures::FutureExt;
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use deno_core::futures::Stream;
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use deno_core::futures::StreamExt;
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use deno_core::futures::TryFutureExt;
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use deno_core::op2;
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use deno_core::serde::Serialize;
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use deno_core::unsync::spawn;
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use deno_core::url::Url;
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use deno_core::AsyncRefCell;
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use deno_core::AsyncResult;
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use deno_core::BufView;
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use deno_core::ByteString;
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use deno_core::CancelFuture;
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use deno_core::CancelHandle;
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use deno_core::CancelTryFuture;
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use deno_core::OpState;
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use deno_core::RcRef;
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use deno_core::Resource;
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use deno_core::ResourceId;
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use deno_fetch::get_or_create_client_from_state;
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use deno_fetch::FetchCancelHandle;
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use deno_fetch::FetchError;
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use deno_fetch::FetchRequestResource;
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use deno_fetch::FetchReturn;
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use deno_fetch::HttpClientResource;
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use deno_fetch::ResBody;
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use http::header::HeaderMap;
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use http::header::HeaderName;
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use http::header::HeaderValue;
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use http::header::AUTHORIZATION;
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use http::header::CONTENT_LENGTH;
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use http::Method;
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use http_body_util::BodyExt;
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use hyper::body::Frame;
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use hyper_util::rt::TokioIo;
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use std::cmp::min;
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use tokio::io::AsyncReadExt;
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use tokio::io::AsyncWriteExt;
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#[op2]
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#[serde]
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pub fn op_node_http_request<P>(
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state: &mut OpState,
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#[serde] method: ByteString,
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#[string] url: String,
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#[serde] headers: Vec<(ByteString, ByteString)>,
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#[smi] client_rid: Option<u32>,
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#[smi] body: Option<ResourceId>,
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) -> Result<FetchReturn, FetchError>
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where
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P: crate::NodePermissions + 'static,
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{
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let client = if let Some(rid) = client_rid {
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let r = state
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.resource_table
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.get::<HttpClientResource>(rid)
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.map_err(FetchError::Resource)?;
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r.client.clone()
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} else {
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get_or_create_client_from_state(state)?
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};
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let method = Method::from_bytes(&method)?;
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let mut url = Url::parse(&url)?;
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let maybe_authority = deno_fetch::extract_authority(&mut url);
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{
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let permissions = state.borrow_mut::<P>();
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permissions
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.check_net_url(&url, "ClientRequest")
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.map_err(FetchError::Permission)?;
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}
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let mut header_map = HeaderMap::new();
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for (key, value) in headers {
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let name = HeaderName::from_bytes(&key)?;
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let v = HeaderValue::from_bytes(&value)?;
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header_map.append(name, v);
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}
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let (body, con_len) = if let Some(body) = body {
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(
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BodyExt::boxed(NodeHttpResourceToBodyAdapter::new(
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state
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.resource_table
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.take_any(body)
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.map_err(FetchError::Resource)?,
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)),
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None,
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)
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} else {
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// POST and PUT requests should always have a 0 length content-length,
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// if there is no body. https://fetch.spec.whatwg.org/#http-network-or-cache-fetch
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let len = if matches!(method, Method::POST | Method::PUT) {
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Some(0)
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} else {
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None
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};
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(
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http_body_util::Empty::new()
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.map_err(|never| match never {})
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.boxed(),
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len,
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)
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};
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let mut request = http::Request::new(body);
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*request.method_mut() = method.clone();
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*request.uri_mut() = url
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.as_str()
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.parse()
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.map_err(|_| FetchError::InvalidUrl(url.clone()))?;
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*request.headers_mut() = header_map;
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if let Some((username, password)) = maybe_authority {
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request.headers_mut().insert(
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AUTHORIZATION,
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deno_fetch::basic_auth(&username, password.as_deref()),
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);
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}
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if let Some(len) = con_len {
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request.headers_mut().insert(CONTENT_LENGTH, len.into());
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}
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let cancel_handle = CancelHandle::new_rc();
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let cancel_handle_ = cancel_handle.clone();
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let fut = async move {
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client
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.send(request)
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.map_err(Into::into)
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.or_cancel(cancel_handle_)
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.await
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};
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let request_rid = state.resource_table.add(FetchRequestResource {
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future: Box::pin(fut),
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url,
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});
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let cancel_handle_rid =
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state.resource_table.add(FetchCancelHandle(cancel_handle));
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Ok(FetchReturn {
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request_rid,
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cancel_handle_rid: Some(cancel_handle_rid),
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})
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}
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#[derive(Default, Serialize)]
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#[serde(rename_all = "camelCase")]
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pub struct NodeHttpFetchResponse {
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pub status: u16,
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pub status_text: String,
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pub headers: Vec<(ByteString, ByteString)>,
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pub url: String,
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pub response_rid: ResourceId,
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pub content_length: Option<u64>,
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pub remote_addr_ip: Option<String>,
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pub remote_addr_port: Option<u16>,
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pub error: Option<String>,
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}
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#[op2(async)]
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#[serde]
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pub async fn op_node_http_fetch_send(
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state: Rc<RefCell<OpState>>,
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#[smi] rid: ResourceId,
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) -> Result<NodeHttpFetchResponse, FetchError> {
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let request = state
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.borrow_mut()
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.resource_table
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.take::<FetchRequestResource>(rid)
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.map_err(FetchError::Resource)?;
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let request = Rc::try_unwrap(request)
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.ok()
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.expect("multiple op_node_http_fetch_send ongoing");
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let res = match request.future.await {
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Ok(Ok(res)) => res,
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Ok(Err(err)) => {
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// We're going to try and rescue the error cause from a stream and return it from this fetch.
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// If any error in the chain is a hyper body error, return that as a special result we can use to
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// reconstruct an error chain (eg: `new TypeError(..., { cause: new Error(...) })`).
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// TODO(mmastrac): it would be a lot easier if we just passed a v8::Global through here instead
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if let FetchError::ClientSend(err_src) = &err {
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if let Some(client_err) = std::error::Error::source(&err_src.source) {
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if let Some(err_src) = client_err.downcast_ref::<hyper::Error>() {
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if let Some(err_src) = std::error::Error::source(err_src) {
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return Ok(NodeHttpFetchResponse {
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error: Some(err_src.to_string()),
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..Default::default()
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});
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}
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}
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}
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}
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return Err(err);
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}
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Err(_) => return Err(FetchError::RequestCanceled),
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};
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let status = res.status();
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let url = request.url.into();
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let mut res_headers = Vec::new();
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for (key, val) in res.headers().iter() {
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res_headers.push((key.as_str().into(), val.as_bytes().into()));
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}
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let content_length = hyper::body::Body::size_hint(res.body()).exact();
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let remote_addr = res
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.extensions()
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.get::<hyper_util::client::legacy::connect::HttpInfo>()
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.map(|info| info.remote_addr());
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let (remote_addr_ip, remote_addr_port) = if let Some(addr) = remote_addr {
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(Some(addr.ip().to_string()), Some(addr.port()))
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} else {
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(None, None)
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};
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let response_rid = state
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.borrow_mut()
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.resource_table
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.add(NodeHttpFetchResponseResource::new(res, content_length));
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Ok(NodeHttpFetchResponse {
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status: status.as_u16(),
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status_text: status.canonical_reason().unwrap_or("").to_string(),
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headers: res_headers,
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url,
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response_rid,
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content_length,
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remote_addr_ip,
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remote_addr_port,
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error: None,
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})
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}
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#[op2(async)]
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#[smi]
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pub async fn op_node_http_fetch_response_upgrade(
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state: Rc<RefCell<OpState>>,
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#[smi] rid: ResourceId,
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) -> Result<ResourceId, FetchError> {
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let raw_response = state
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.borrow_mut()
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.resource_table
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.take::<NodeHttpFetchResponseResource>(rid)
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.map_err(FetchError::Resource)?;
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let raw_response = Rc::try_unwrap(raw_response)
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.expect("Someone is holding onto NodeHttpFetchResponseResource");
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let (read, write) = tokio::io::duplex(1024);
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let (read_rx, write_tx) = tokio::io::split(read);
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let (mut write_rx, mut read_tx) = tokio::io::split(write);
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let upgraded = raw_response.upgrade().await?;
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{
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// Stage 3: Pump the data
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let (mut upgraded_rx, mut upgraded_tx) =
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tokio::io::split(TokioIo::new(upgraded));
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spawn(async move {
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let mut buf = [0; 1024];
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loop {
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let read = upgraded_rx.read(&mut buf).await?;
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if read == 0 {
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read_tx.shutdown().await?;
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break;
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}
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read_tx.write_all(&buf[..read]).await?;
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}
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Ok::<_, FetchError>(())
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});
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spawn(async move {
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let mut buf = [0; 1024];
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loop {
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let read = write_rx.read(&mut buf).await?;
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if read == 0 {
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break;
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}
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upgraded_tx.write_all(&buf[..read]).await?;
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}
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Ok::<_, FetchError>(())
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});
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}
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Ok(
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state
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.borrow_mut()
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.resource_table
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.add(UpgradeStream::new(read_rx, write_tx)),
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)
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}
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struct UpgradeStream {
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read: AsyncRefCell<tokio::io::ReadHalf<tokio::io::DuplexStream>>,
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write: AsyncRefCell<tokio::io::WriteHalf<tokio::io::DuplexStream>>,
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cancel_handle: CancelHandle,
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}
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impl UpgradeStream {
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pub fn new(
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read: tokio::io::ReadHalf<tokio::io::DuplexStream>,
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write: tokio::io::WriteHalf<tokio::io::DuplexStream>,
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) -> Self {
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Self {
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read: AsyncRefCell::new(read),
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write: AsyncRefCell::new(write),
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cancel_handle: CancelHandle::new(),
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}
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}
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async fn read(
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self: Rc<Self>,
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buf: &mut [u8],
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) -> Result<usize, std::io::Error> {
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let cancel_handle = RcRef::map(self.clone(), |this| &this.cancel_handle);
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async {
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let read = RcRef::map(self, |this| &this.read);
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let mut read = read.borrow_mut().await;
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Pin::new(&mut *read).read(buf).await
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}
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.try_or_cancel(cancel_handle)
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.await
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}
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async fn write(self: Rc<Self>, buf: &[u8]) -> Result<usize, std::io::Error> {
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let cancel_handle = RcRef::map(self.clone(), |this| &this.cancel_handle);
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async {
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let write = RcRef::map(self, |this| &this.write);
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let mut write = write.borrow_mut().await;
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Pin::new(&mut *write).write(buf).await
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}
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.try_or_cancel(cancel_handle)
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.await
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}
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}
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impl Resource for UpgradeStream {
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fn name(&self) -> Cow<str> {
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"fetchUpgradedStream".into()
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}
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deno_core::impl_readable_byob!();
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deno_core::impl_writable!();
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fn close(self: Rc<Self>) {
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self.cancel_handle.cancel();
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}
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}
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type BytesStream =
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Pin<Box<dyn Stream<Item = Result<bytes::Bytes, std::io::Error>> + Unpin>>;
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pub enum NodeHttpFetchResponseReader {
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Start(http::Response<ResBody>),
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BodyReader(Peekable<BytesStream>),
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}
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impl Default for NodeHttpFetchResponseReader {
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fn default() -> Self {
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let stream: BytesStream = Box::pin(deno_core::futures::stream::empty());
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Self::BodyReader(stream.peekable())
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}
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}
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#[derive(Debug)]
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pub struct NodeHttpFetchResponseResource {
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pub response_reader: AsyncRefCell<NodeHttpFetchResponseReader>,
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pub cancel: CancelHandle,
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pub size: Option<u64>,
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}
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impl NodeHttpFetchResponseResource {
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pub fn new(response: http::Response<ResBody>, size: Option<u64>) -> Self {
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Self {
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response_reader: AsyncRefCell::new(NodeHttpFetchResponseReader::Start(
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response,
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)),
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cancel: CancelHandle::default(),
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size,
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}
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}
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pub async fn upgrade(self) -> Result<hyper::upgrade::Upgraded, hyper::Error> {
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let reader = self.response_reader.into_inner();
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match reader {
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NodeHttpFetchResponseReader::Start(resp) => {
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Ok(hyper::upgrade::on(resp).await?)
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}
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_ => unreachable!(),
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}
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}
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}
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impl Resource for NodeHttpFetchResponseResource {
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fn name(&self) -> Cow<str> {
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"fetchResponse".into()
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}
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fn read(self: Rc<Self>, limit: usize) -> AsyncResult<BufView> {
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Box::pin(async move {
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let mut reader =
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RcRef::map(&self, |r| &r.response_reader).borrow_mut().await;
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let body = loop {
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match &mut *reader {
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NodeHttpFetchResponseReader::BodyReader(reader) => break reader,
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NodeHttpFetchResponseReader::Start(_) => {}
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}
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match std::mem::take(&mut *reader) {
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NodeHttpFetchResponseReader::Start(resp) => {
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let stream: BytesStream =
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Box::pin(resp.into_body().into_data_stream().map(|r| {
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r.map_err(|err| {
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std::io::Error::new(std::io::ErrorKind::Other, err)
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})
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}));
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*reader =
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NodeHttpFetchResponseReader::BodyReader(stream.peekable());
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}
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NodeHttpFetchResponseReader::BodyReader(_) => unreachable!(),
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}
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};
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let fut = async move {
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let mut reader = Pin::new(body);
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loop {
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match reader.as_mut().peek_mut().await {
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Some(Ok(chunk)) if !chunk.is_empty() => {
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let len = min(limit, chunk.len());
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let chunk = chunk.split_to(len);
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break Ok(chunk.into());
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}
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// This unwrap is safe because `peek_mut()` returned `Some`, and thus
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// currently has a peeked value that can be synchronously returned
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// from `next()`.
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//
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// The future returned from `next()` is always ready, so we can
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// safely call `await` on it without creating a race condition.
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Some(_) => match reader.as_mut().next().await.unwrap() {
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Ok(chunk) => assert!(chunk.is_empty()),
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Err(err) => {
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break Err(deno_core::error::type_error(err.to_string()))
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}
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},
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None => break Ok(BufView::empty()),
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}
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}
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};
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let cancel_handle = RcRef::map(self, |r| &r.cancel);
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fut.try_or_cancel(cancel_handle).await.map_err(Into::into)
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})
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}
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fn size_hint(&self) -> (u64, Option<u64>) {
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(self.size.unwrap_or(0), self.size)
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}
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fn close(self: Rc<Self>) {
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self.cancel.cancel()
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}
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}
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#[allow(clippy::type_complexity)]
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pub struct NodeHttpResourceToBodyAdapter(
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Rc<dyn Resource>,
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Option<
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Pin<Box<dyn Future<Output = Result<BufView, deno_core::anyhow::Error>>>>,
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>,
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);
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impl NodeHttpResourceToBodyAdapter {
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pub fn new(resource: Rc<dyn Resource>) -> Self {
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let future = resource.clone().read(64 * 1024);
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Self(resource, Some(future))
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}
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}
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// SAFETY: we only use this on a single-threaded executor
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unsafe impl Send for NodeHttpResourceToBodyAdapter {}
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// SAFETY: we only use this on a single-threaded executor
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unsafe impl Sync for NodeHttpResourceToBodyAdapter {}
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impl Stream for NodeHttpResourceToBodyAdapter {
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type Item = Result<Bytes, deno_core::anyhow::Error>;
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fn poll_next(
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self: Pin<&mut Self>,
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cx: &mut Context<'_>,
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) -> Poll<Option<Self::Item>> {
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let this = self.get_mut();
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if let Some(mut fut) = this.1.take() {
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match fut.poll_unpin(cx) {
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Poll::Pending => {
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this.1 = Some(fut);
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Poll::Pending
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}
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Poll::Ready(res) => match res {
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Ok(buf) if buf.is_empty() => Poll::Ready(None),
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Ok(buf) => {
|
|
this.1 = Some(this.0.clone().read(64 * 1024));
|
|
Poll::Ready(Some(Ok(buf.to_vec().into())))
|
|
}
|
|
Err(err) => Poll::Ready(Some(Err(err))),
|
|
},
|
|
}
|
|
} else {
|
|
Poll::Ready(None)
|
|
}
|
|
}
|
|
}
|
|
|
|
impl hyper::body::Body for NodeHttpResourceToBodyAdapter {
|
|
type Data = Bytes;
|
|
type Error = deno_core::anyhow::Error;
|
|
|
|
fn poll_frame(
|
|
self: Pin<&mut Self>,
|
|
cx: &mut Context<'_>,
|
|
) -> Poll<Option<Result<Frame<Self::Data>, Self::Error>>> {
|
|
match self.poll_next(cx) {
|
|
Poll::Ready(Some(res)) => Poll::Ready(Some(res.map(Frame::data))),
|
|
Poll::Ready(None) => Poll::Ready(None),
|
|
Poll::Pending => Poll::Pending,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl Drop for NodeHttpResourceToBodyAdapter {
|
|
fn drop(&mut self) {
|
|
self.0.clone().close()
|
|
}
|
|
}
|