mirror of
https://github.com/denoland/deno.git
synced 2024-11-22 15:06:54 -05:00
1114 lines
31 KiB
Rust
1114 lines
31 KiB
Rust
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
|
||
|
||
mod fs_fetch_handler;
|
||
mod proxy;
|
||
#[cfg(test)]
|
||
mod tests;
|
||
|
||
use std::borrow::Cow;
|
||
use std::cell::RefCell;
|
||
use std::cmp::min;
|
||
use std::convert::From;
|
||
use std::path::Path;
|
||
use std::path::PathBuf;
|
||
use std::pin::Pin;
|
||
use std::rc::Rc;
|
||
use std::sync::Arc;
|
||
use std::task::Context;
|
||
use std::task::Poll;
|
||
|
||
use deno_core::anyhow::anyhow;
|
||
use deno_core::anyhow::Error;
|
||
use deno_core::error::type_error;
|
||
use deno_core::error::AnyError;
|
||
use deno_core::futures::stream::Peekable;
|
||
use deno_core::futures::Future;
|
||
use deno_core::futures::FutureExt;
|
||
use deno_core::futures::Stream;
|
||
use deno_core::futures::StreamExt;
|
||
use deno_core::futures::TryFutureExt;
|
||
use deno_core::op2;
|
||
use deno_core::url::Url;
|
||
use deno_core::AsyncRefCell;
|
||
use deno_core::AsyncResult;
|
||
use deno_core::BufView;
|
||
use deno_core::ByteString;
|
||
use deno_core::CancelFuture;
|
||
use deno_core::CancelHandle;
|
||
use deno_core::CancelTryFuture;
|
||
use deno_core::Canceled;
|
||
use deno_core::JsBuffer;
|
||
use deno_core::OpState;
|
||
use deno_core::RcRef;
|
||
use deno_core::Resource;
|
||
use deno_core::ResourceId;
|
||
use deno_tls::rustls::RootCertStore;
|
||
use deno_tls::Proxy;
|
||
use deno_tls::RootCertStoreProvider;
|
||
use deno_tls::TlsKey;
|
||
use deno_tls::TlsKeys;
|
||
use deno_tls::TlsKeysHolder;
|
||
|
||
use bytes::Bytes;
|
||
use data_url::DataUrl;
|
||
use http::header::HeaderName;
|
||
use http::header::HeaderValue;
|
||
use http::header::ACCEPT;
|
||
use http::header::ACCEPT_ENCODING;
|
||
use http::header::AUTHORIZATION;
|
||
use http::header::CONTENT_LENGTH;
|
||
use http::header::HOST;
|
||
use http::header::PROXY_AUTHORIZATION;
|
||
use http::header::RANGE;
|
||
use http::header::USER_AGENT;
|
||
use http::Extensions;
|
||
use http::Method;
|
||
use http::Uri;
|
||
use http_body_util::BodyExt;
|
||
use hyper::body::Frame;
|
||
use hyper_util::client::legacy::connect::HttpConnector;
|
||
use hyper_util::client::legacy::connect::HttpInfo;
|
||
use hyper_util::rt::TokioExecutor;
|
||
use hyper_util::rt::TokioTimer;
|
||
use serde::Deserialize;
|
||
use serde::Serialize;
|
||
use tower::ServiceExt;
|
||
use tower_http::decompression::Decompression;
|
||
|
||
// Re-export data_url
|
||
pub use data_url;
|
||
pub use proxy::basic_auth;
|
||
|
||
pub use fs_fetch_handler::FsFetchHandler;
|
||
|
||
#[derive(Clone)]
|
||
pub struct Options {
|
||
pub user_agent: String,
|
||
pub root_cert_store_provider: Option<Arc<dyn RootCertStoreProvider>>,
|
||
pub proxy: Option<Proxy>,
|
||
#[allow(clippy::type_complexity)]
|
||
pub request_builder_hook:
|
||
Option<fn(&mut http::Request<ReqBody>) -> Result<(), AnyError>>,
|
||
pub unsafely_ignore_certificate_errors: Option<Vec<String>>,
|
||
pub client_cert_chain_and_key: TlsKeys,
|
||
pub file_fetch_handler: Rc<dyn FetchHandler>,
|
||
}
|
||
|
||
impl Options {
|
||
pub fn root_cert_store(&self) -> Result<Option<RootCertStore>, AnyError> {
|
||
Ok(match &self.root_cert_store_provider {
|
||
Some(provider) => Some(provider.get_or_try_init()?.clone()),
|
||
None => None,
|
||
})
|
||
}
|
||
}
|
||
|
||
impl Default for Options {
|
||
fn default() -> Self {
|
||
Self {
|
||
user_agent: "".to_string(),
|
||
root_cert_store_provider: None,
|
||
proxy: None,
|
||
request_builder_hook: None,
|
||
unsafely_ignore_certificate_errors: None,
|
||
client_cert_chain_and_key: TlsKeys::Null,
|
||
file_fetch_handler: Rc::new(DefaultFileFetchHandler),
|
||
}
|
||
}
|
||
}
|
||
|
||
deno_core::extension!(deno_fetch,
|
||
deps = [ deno_webidl, deno_web, deno_url, deno_console ],
|
||
parameters = [FP: FetchPermissions],
|
||
ops = [
|
||
op_fetch<FP>,
|
||
op_fetch_send,
|
||
op_utf8_to_byte_string,
|
||
op_fetch_custom_client<FP>,
|
||
],
|
||
esm = [
|
||
"20_headers.js",
|
||
"21_formdata.js",
|
||
"22_body.js",
|
||
"22_http_client.js",
|
||
"23_request.js",
|
||
"23_response.js",
|
||
"26_fetch.js",
|
||
"27_eventsource.js"
|
||
],
|
||
options = {
|
||
options: Options,
|
||
},
|
||
state = |state, options| {
|
||
state.put::<Options>(options.options);
|
||
},
|
||
);
|
||
|
||
pub type CancelableResponseFuture =
|
||
Pin<Box<dyn Future<Output = CancelableResponseResult>>>;
|
||
|
||
pub trait FetchHandler: dyn_clone::DynClone {
|
||
// Return the result of the fetch request consisting of a tuple of the
|
||
// cancelable response result, the optional fetch body resource and the
|
||
// optional cancel handle.
|
||
fn fetch_file(
|
||
&self,
|
||
state: &mut OpState,
|
||
url: &Url,
|
||
) -> (CancelableResponseFuture, Option<Rc<CancelHandle>>);
|
||
}
|
||
|
||
dyn_clone::clone_trait_object!(FetchHandler);
|
||
|
||
/// A default implementation which will error for every request.
|
||
#[derive(Clone)]
|
||
pub struct DefaultFileFetchHandler;
|
||
|
||
impl FetchHandler for DefaultFileFetchHandler {
|
||
fn fetch_file(
|
||
&self,
|
||
_state: &mut OpState,
|
||
_url: &Url,
|
||
) -> (CancelableResponseFuture, Option<Rc<CancelHandle>>) {
|
||
let fut = async move {
|
||
Ok(Err(type_error(
|
||
"NetworkError when attempting to fetch resource",
|
||
)))
|
||
};
|
||
(Box::pin(fut), None)
|
||
}
|
||
}
|
||
|
||
pub fn get_declaration() -> PathBuf {
|
||
PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("lib.deno_fetch.d.ts")
|
||
}
|
||
#[derive(Serialize)]
|
||
#[serde(rename_all = "camelCase")]
|
||
pub struct FetchReturn {
|
||
pub request_rid: ResourceId,
|
||
pub cancel_handle_rid: Option<ResourceId>,
|
||
}
|
||
|
||
pub fn get_or_create_client_from_state(
|
||
state: &mut OpState,
|
||
) -> Result<Client, AnyError> {
|
||
if let Some(client) = state.try_borrow::<Client>() {
|
||
Ok(client.clone())
|
||
} else {
|
||
let options = state.borrow::<Options>();
|
||
let client = create_client_from_options(options)?;
|
||
state.put::<Client>(client.clone());
|
||
Ok(client)
|
||
}
|
||
}
|
||
|
||
pub fn create_client_from_options(
|
||
options: &Options,
|
||
) -> Result<Client, AnyError> {
|
||
create_http_client(
|
||
&options.user_agent,
|
||
CreateHttpClientOptions {
|
||
root_cert_store: options.root_cert_store()?,
|
||
ca_certs: vec![],
|
||
proxy: options.proxy.clone(),
|
||
unsafely_ignore_certificate_errors: options
|
||
.unsafely_ignore_certificate_errors
|
||
.clone(),
|
||
client_cert_chain_and_key: options
|
||
.client_cert_chain_and_key
|
||
.clone()
|
||
.try_into()
|
||
.unwrap_or_default(),
|
||
pool_max_idle_per_host: None,
|
||
pool_idle_timeout: None,
|
||
http1: true,
|
||
http2: true,
|
||
},
|
||
)
|
||
}
|
||
|
||
#[allow(clippy::type_complexity)]
|
||
pub struct ResourceToBodyAdapter(
|
||
Rc<dyn Resource>,
|
||
Option<Pin<Box<dyn Future<Output = Result<BufView, Error>>>>>,
|
||
);
|
||
|
||
impl ResourceToBodyAdapter {
|
||
pub fn new(resource: Rc<dyn Resource>) -> Self {
|
||
let future = resource.clone().read(64 * 1024);
|
||
Self(resource, Some(future))
|
||
}
|
||
}
|
||
|
||
// SAFETY: we only use this on a single-threaded executor
|
||
unsafe impl Send for ResourceToBodyAdapter {}
|
||
// SAFETY: we only use this on a single-threaded executor
|
||
unsafe impl Sync for ResourceToBodyAdapter {}
|
||
|
||
impl Stream for ResourceToBodyAdapter {
|
||
type Item = Result<Bytes, Error>;
|
||
|
||
fn poll_next(
|
||
self: Pin<&mut Self>,
|
||
cx: &mut Context<'_>,
|
||
) -> Poll<Option<Self::Item>> {
|
||
let this = self.get_mut();
|
||
if let Some(mut fut) = this.1.take() {
|
||
match fut.poll_unpin(cx) {
|
||
Poll::Pending => {
|
||
this.1 = Some(fut);
|
||
Poll::Pending
|
||
}
|
||
Poll::Ready(res) => match res {
|
||
Ok(buf) if buf.is_empty() => Poll::Ready(None),
|
||
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 ResourceToBodyAdapter {
|
||
type Data = Bytes;
|
||
type Error = 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 ResourceToBodyAdapter {
|
||
fn drop(&mut self) {
|
||
self.0.clone().close()
|
||
}
|
||
}
|
||
|
||
pub trait FetchPermissions {
|
||
fn check_net_url(
|
||
&mut self,
|
||
url: &Url,
|
||
api_name: &str,
|
||
) -> Result<(), AnyError>;
|
||
#[must_use = "the resolved return value to mitigate time-of-check to time-of-use issues"]
|
||
fn check_read<'a>(
|
||
&mut self,
|
||
p: &'a Path,
|
||
api_name: &str,
|
||
) -> Result<Cow<'a, Path>, AnyError>;
|
||
}
|
||
|
||
impl FetchPermissions for deno_permissions::PermissionsContainer {
|
||
#[inline(always)]
|
||
fn check_net_url(
|
||
&mut self,
|
||
url: &Url,
|
||
api_name: &str,
|
||
) -> Result<(), AnyError> {
|
||
deno_permissions::PermissionsContainer::check_net_url(self, url, api_name)
|
||
}
|
||
|
||
#[inline(always)]
|
||
fn check_read<'a>(
|
||
&mut self,
|
||
path: &'a Path,
|
||
api_name: &str,
|
||
) -> Result<Cow<'a, Path>, AnyError> {
|
||
deno_permissions::PermissionsContainer::check_read_path(
|
||
self,
|
||
path,
|
||
Some(api_name),
|
||
)
|
||
}
|
||
}
|
||
|
||
#[op2]
|
||
#[serde]
|
||
#[allow(clippy::too_many_arguments)]
|
||
pub fn op_fetch<FP>(
|
||
state: &mut OpState,
|
||
#[serde] method: ByteString,
|
||
#[string] url: String,
|
||
#[serde] headers: Vec<(ByteString, ByteString)>,
|
||
#[smi] client_rid: Option<u32>,
|
||
has_body: bool,
|
||
#[buffer] data: Option<JsBuffer>,
|
||
#[smi] resource: Option<ResourceId>,
|
||
) -> Result<FetchReturn, AnyError>
|
||
where
|
||
FP: FetchPermissions + 'static,
|
||
{
|
||
let (client, allow_host) = if let Some(rid) = client_rid {
|
||
let r = state.resource_table.get::<HttpClientResource>(rid)?;
|
||
(r.client.clone(), r.allow_host)
|
||
} else {
|
||
(get_or_create_client_from_state(state)?, false)
|
||
};
|
||
|
||
let method = Method::from_bytes(&method)?;
|
||
let mut url = Url::parse(&url)?;
|
||
|
||
// Check scheme before asking for net permission
|
||
let scheme = url.scheme();
|
||
let (request_rid, cancel_handle_rid) = match scheme {
|
||
"file" => {
|
||
let path = url.to_file_path().map_err(|_| {
|
||
type_error("NetworkError when attempting to fetch resource")
|
||
})?;
|
||
let permissions = state.borrow_mut::<FP>();
|
||
let path = permissions.check_read(&path, "fetch()")?;
|
||
let url = match path {
|
||
Cow::Owned(path) => Url::from_file_path(path).unwrap(),
|
||
Cow::Borrowed(_) => url,
|
||
};
|
||
|
||
if method != Method::GET {
|
||
return Err(type_error(format!(
|
||
"Fetching files only supports the GET method: received {method}"
|
||
)));
|
||
}
|
||
|
||
let Options {
|
||
file_fetch_handler, ..
|
||
} = state.borrow_mut::<Options>();
|
||
let file_fetch_handler = file_fetch_handler.clone();
|
||
let (future, maybe_cancel_handle) =
|
||
file_fetch_handler.fetch_file(state, &url);
|
||
let request_rid = state
|
||
.resource_table
|
||
.add(FetchRequestResource { future, url });
|
||
let maybe_cancel_handle_rid = maybe_cancel_handle
|
||
.map(|ch| state.resource_table.add(FetchCancelHandle(ch)));
|
||
|
||
(request_rid, maybe_cancel_handle_rid)
|
||
}
|
||
"http" | "https" => {
|
||
let permissions = state.borrow_mut::<FP>();
|
||
permissions.check_net_url(&url, "fetch()")?;
|
||
|
||
let maybe_authority = extract_authority(&mut url);
|
||
let uri = url
|
||
.as_str()
|
||
.parse::<Uri>()
|
||
.map_err(|_| type_error(format!("Invalid URL {url}")))?;
|
||
|
||
let mut con_len = None;
|
||
let body = if has_body {
|
||
match (data, resource) {
|
||
(Some(data), _) => {
|
||
// If a body is passed, we use it, and don't return a body for streaming.
|
||
con_len = Some(data.len() as u64);
|
||
|
||
http_body_util::Full::new(data.to_vec().into())
|
||
.map_err(|never| match never {})
|
||
.boxed()
|
||
}
|
||
(_, Some(resource)) => {
|
||
let resource = state.resource_table.take_any(resource)?;
|
||
match resource.size_hint() {
|
||
(body_size, Some(n)) if body_size == n && body_size > 0 => {
|
||
con_len = Some(body_size);
|
||
}
|
||
_ => {}
|
||
}
|
||
ReqBody::new(ResourceToBodyAdapter::new(resource))
|
||
}
|
||
(None, None) => unreachable!(),
|
||
}
|
||
} else {
|
||
// POST and PUT requests should always have a 0 length content-length,
|
||
// if there is no body. https://fetch.spec.whatwg.org/#http-network-or-cache-fetch
|
||
if matches!(method, Method::POST | Method::PUT) {
|
||
con_len = Some(0);
|
||
}
|
||
http_body_util::Empty::new()
|
||
.map_err(|never| match never {})
|
||
.boxed()
|
||
};
|
||
|
||
let mut request = http::Request::new(body);
|
||
*request.method_mut() = method.clone();
|
||
*request.uri_mut() = uri.clone();
|
||
|
||
if let Some((username, password)) = maybe_authority {
|
||
request.headers_mut().insert(
|
||
AUTHORIZATION,
|
||
proxy::basic_auth(&username, password.as_deref()),
|
||
);
|
||
}
|
||
if let Some(len) = con_len {
|
||
request.headers_mut().insert(CONTENT_LENGTH, len.into());
|
||
}
|
||
|
||
for (key, value) in headers {
|
||
let name = HeaderName::from_bytes(&key)
|
||
.map_err(|err| type_error(err.to_string()))?;
|
||
let v = HeaderValue::from_bytes(&value)
|
||
.map_err(|err| type_error(err.to_string()))?;
|
||
|
||
if (name != HOST || allow_host) && name != CONTENT_LENGTH {
|
||
request.headers_mut().append(name, v);
|
||
}
|
||
}
|
||
|
||
if request.headers().contains_key(RANGE) {
|
||
// https://fetch.spec.whatwg.org/#http-network-or-cache-fetch step 18
|
||
// If httpRequest’s header list contains `Range`, then append (`Accept-Encoding`, `identity`)
|
||
request
|
||
.headers_mut()
|
||
.insert(ACCEPT_ENCODING, HeaderValue::from_static("identity"));
|
||
}
|
||
|
||
let options = state.borrow::<Options>();
|
||
if let Some(request_builder_hook) = options.request_builder_hook {
|
||
request_builder_hook(&mut request)
|
||
.map_err(|err| type_error(err.to_string()))?;
|
||
}
|
||
|
||
let cancel_handle = CancelHandle::new_rc();
|
||
let cancel_handle_ = cancel_handle.clone();
|
||
|
||
let fut = {
|
||
async move {
|
||
client
|
||
.send(request)
|
||
.map_err(Into::into)
|
||
.or_cancel(cancel_handle_)
|
||
.await
|
||
}
|
||
};
|
||
|
||
let request_rid = state.resource_table.add(FetchRequestResource {
|
||
future: Box::pin(fut),
|
||
url,
|
||
});
|
||
|
||
let cancel_handle_rid =
|
||
state.resource_table.add(FetchCancelHandle(cancel_handle));
|
||
|
||
(request_rid, Some(cancel_handle_rid))
|
||
}
|
||
"data" => {
|
||
let data_url = DataUrl::process(url.as_str())
|
||
.map_err(|e| type_error(format!("{e:?}")))?;
|
||
|
||
let (body, _) = data_url
|
||
.decode_to_vec()
|
||
.map_err(|e| type_error(format!("{e:?}")))?;
|
||
let body = http_body_util::Full::new(body.into())
|
||
.map_err(|never| match never {})
|
||
.boxed();
|
||
|
||
let response = http::Response::builder()
|
||
.status(http::StatusCode::OK)
|
||
.header(http::header::CONTENT_TYPE, data_url.mime_type().to_string())
|
||
.body(body)?;
|
||
|
||
let fut = async move { Ok(Ok(response)) };
|
||
|
||
let request_rid = state.resource_table.add(FetchRequestResource {
|
||
future: Box::pin(fut),
|
||
url,
|
||
});
|
||
|
||
(request_rid, None)
|
||
}
|
||
"blob" => {
|
||
// Blob URL resolution happens in the JS side of fetch. If we got here is
|
||
// because the URL isn't an object URL.
|
||
return Err(type_error("Blob for the given URL not found."));
|
||
}
|
||
_ => {
|
||
return Err(type_error(format!("Url scheme '{scheme}' not supported")))
|
||
}
|
||
};
|
||
|
||
Ok(FetchReturn {
|
||
request_rid,
|
||
cancel_handle_rid,
|
||
})
|
||
}
|
||
|
||
#[derive(Default, Serialize)]
|
||
#[serde(rename_all = "camelCase")]
|
||
pub struct FetchResponse {
|
||
pub status: u16,
|
||
pub status_text: String,
|
||
pub headers: Vec<(ByteString, ByteString)>,
|
||
pub url: String,
|
||
pub response_rid: ResourceId,
|
||
pub content_length: Option<u64>,
|
||
pub remote_addr_ip: Option<String>,
|
||
pub remote_addr_port: Option<u16>,
|
||
/// This field is populated if some error occurred which needs to be
|
||
/// reconstructed in the JS side to set the error _cause_.
|
||
/// In the tuple, the first element is an error message and the second one is
|
||
/// an error cause.
|
||
pub error: Option<(String, String)>,
|
||
}
|
||
|
||
#[op2(async)]
|
||
#[serde]
|
||
pub async fn op_fetch_send(
|
||
state: Rc<RefCell<OpState>>,
|
||
#[smi] rid: ResourceId,
|
||
) -> Result<FetchResponse, AnyError> {
|
||
let request = state
|
||
.borrow_mut()
|
||
.resource_table
|
||
.take::<FetchRequestResource>(rid)?;
|
||
|
||
let request = Rc::try_unwrap(request)
|
||
.ok()
|
||
.expect("multiple op_fetch_send ongoing");
|
||
|
||
let res = match request.future.await {
|
||
Ok(Ok(res)) => res,
|
||
Ok(Err(err)) => {
|
||
// We're going to try and rescue the error cause from a stream and return it from this fetch.
|
||
// If any error in the chain is a hyper body error, return that as a special result we can use to
|
||
// reconstruct an error chain (eg: `new TypeError(..., { cause: new Error(...) })`).
|
||
// TODO(mmastrac): it would be a lot easier if we just passed a v8::Global through here instead
|
||
let mut err_ref: &dyn std::error::Error = err.as_ref();
|
||
while let Some(err_src) = std::error::Error::source(err_ref) {
|
||
if let Some(err_src) = err_src.downcast_ref::<hyper::Error>() {
|
||
if let Some(err_src) = std::error::Error::source(err_src) {
|
||
return Ok(FetchResponse {
|
||
error: Some((err.to_string(), err_src.to_string())),
|
||
..Default::default()
|
||
});
|
||
}
|
||
}
|
||
err_ref = err_src;
|
||
}
|
||
|
||
return Err(type_error(err.to_string()));
|
||
}
|
||
Err(_) => return Err(type_error("Request was cancelled")),
|
||
};
|
||
|
||
let status = res.status();
|
||
let url = request.url.into();
|
||
let mut res_headers = Vec::new();
|
||
for (key, val) in res.headers().iter() {
|
||
res_headers.push((key.as_str().into(), val.as_bytes().into()));
|
||
}
|
||
|
||
let content_length = hyper::body::Body::size_hint(res.body()).exact();
|
||
let remote_addr = res
|
||
.extensions()
|
||
.get::<hyper_util::client::legacy::connect::HttpInfo>()
|
||
.map(|info| info.remote_addr());
|
||
let (remote_addr_ip, remote_addr_port) = if let Some(addr) = remote_addr {
|
||
(Some(addr.ip().to_string()), Some(addr.port()))
|
||
} else {
|
||
(None, None)
|
||
};
|
||
|
||
let response_rid = state
|
||
.borrow_mut()
|
||
.resource_table
|
||
.add(FetchResponseResource::new(res, content_length));
|
||
|
||
Ok(FetchResponse {
|
||
status: status.as_u16(),
|
||
status_text: status.canonical_reason().unwrap_or("").to_string(),
|
||
headers: res_headers,
|
||
url,
|
||
response_rid,
|
||
content_length,
|
||
remote_addr_ip,
|
||
remote_addr_port,
|
||
error: None,
|
||
})
|
||
}
|
||
|
||
type CancelableResponseResult =
|
||
Result<Result<http::Response<ResBody>, AnyError>, Canceled>;
|
||
|
||
pub struct FetchRequestResource {
|
||
pub future: Pin<Box<dyn Future<Output = CancelableResponseResult>>>,
|
||
pub url: Url,
|
||
}
|
||
|
||
impl Resource for FetchRequestResource {
|
||
fn name(&self) -> Cow<str> {
|
||
"fetchRequest".into()
|
||
}
|
||
}
|
||
|
||
pub struct FetchCancelHandle(pub Rc<CancelHandle>);
|
||
|
||
impl Resource for FetchCancelHandle {
|
||
fn name(&self) -> Cow<str> {
|
||
"fetchCancelHandle".into()
|
||
}
|
||
|
||
fn close(self: Rc<Self>) {
|
||
self.0.cancel()
|
||
}
|
||
}
|
||
|
||
type BytesStream =
|
||
Pin<Box<dyn Stream<Item = Result<bytes::Bytes, std::io::Error>> + Unpin>>;
|
||
|
||
pub enum FetchResponseReader {
|
||
Start(http::Response<ResBody>),
|
||
BodyReader(Peekable<BytesStream>),
|
||
}
|
||
|
||
impl Default for FetchResponseReader {
|
||
fn default() -> Self {
|
||
let stream: BytesStream = Box::pin(deno_core::futures::stream::empty());
|
||
Self::BodyReader(stream.peekable())
|
||
}
|
||
}
|
||
#[derive(Debug)]
|
||
pub struct FetchResponseResource {
|
||
pub response_reader: AsyncRefCell<FetchResponseReader>,
|
||
pub cancel: CancelHandle,
|
||
pub size: Option<u64>,
|
||
}
|
||
|
||
impl FetchResponseResource {
|
||
pub fn new(response: http::Response<ResBody>, size: Option<u64>) -> Self {
|
||
Self {
|
||
response_reader: AsyncRefCell::new(FetchResponseReader::Start(response)),
|
||
cancel: CancelHandle::default(),
|
||
size,
|
||
}
|
||
}
|
||
|
||
pub async fn upgrade(self) -> Result<hyper::upgrade::Upgraded, AnyError> {
|
||
let reader = self.response_reader.into_inner();
|
||
match reader {
|
||
FetchResponseReader::Start(resp) => Ok(hyper::upgrade::on(resp).await?),
|
||
_ => unreachable!(),
|
||
}
|
||
}
|
||
}
|
||
|
||
impl Resource for FetchResponseResource {
|
||
fn name(&self) -> Cow<str> {
|
||
"fetchResponse".into()
|
||
}
|
||
|
||
fn read(self: Rc<Self>, limit: usize) -> AsyncResult<BufView> {
|
||
Box::pin(async move {
|
||
let mut reader =
|
||
RcRef::map(&self, |r| &r.response_reader).borrow_mut().await;
|
||
|
||
let body = loop {
|
||
match &mut *reader {
|
||
FetchResponseReader::BodyReader(reader) => break reader,
|
||
FetchResponseReader::Start(_) => {}
|
||
}
|
||
|
||
match std::mem::take(&mut *reader) {
|
||
FetchResponseReader::Start(resp) => {
|
||
let stream: BytesStream =
|
||
Box::pin(resp.into_body().into_data_stream().map(|r| {
|
||
r.map_err(|err| {
|
||
std::io::Error::new(std::io::ErrorKind::Other, err)
|
||
})
|
||
}));
|
||
*reader = FetchResponseReader::BodyReader(stream.peekable());
|
||
}
|
||
FetchResponseReader::BodyReader(_) => unreachable!(),
|
||
}
|
||
};
|
||
let fut = async move {
|
||
let mut reader = Pin::new(body);
|
||
loop {
|
||
match reader.as_mut().peek_mut().await {
|
||
Some(Ok(chunk)) if !chunk.is_empty() => {
|
||
let len = min(limit, chunk.len());
|
||
let chunk = chunk.split_to(len);
|
||
break Ok(chunk.into());
|
||
}
|
||
// This unwrap is safe because `peek_mut()` returned `Some`, and thus
|
||
// currently has a peeked value that can be synchronously returned
|
||
// from `next()`.
|
||
//
|
||
// The future returned from `next()` is always ready, so we can
|
||
// safely call `await` on it without creating a race condition.
|
||
Some(_) => match reader.as_mut().next().await.unwrap() {
|
||
Ok(chunk) => assert!(chunk.is_empty()),
|
||
Err(err) => break Err(type_error(err.to_string())),
|
||
},
|
||
None => break Ok(BufView::empty()),
|
||
}
|
||
}
|
||
};
|
||
|
||
let cancel_handle = RcRef::map(self, |r| &r.cancel);
|
||
fut.try_or_cancel(cancel_handle).await
|
||
})
|
||
}
|
||
|
||
fn size_hint(&self) -> (u64, Option<u64>) {
|
||
(self.size.unwrap_or(0), self.size)
|
||
}
|
||
|
||
fn close(self: Rc<Self>) {
|
||
self.cancel.cancel()
|
||
}
|
||
}
|
||
|
||
pub struct HttpClientResource {
|
||
pub client: Client,
|
||
pub allow_host: bool,
|
||
}
|
||
|
||
impl Resource for HttpClientResource {
|
||
fn name(&self) -> Cow<str> {
|
||
"httpClient".into()
|
||
}
|
||
}
|
||
|
||
impl HttpClientResource {
|
||
fn new(client: Client, allow_host: bool) -> Self {
|
||
Self { client, allow_host }
|
||
}
|
||
}
|
||
|
||
#[derive(Deserialize, Debug)]
|
||
#[serde(rename_all = "camelCase")]
|
||
pub struct CreateHttpClientArgs {
|
||
ca_certs: Vec<String>,
|
||
proxy: Option<Proxy>,
|
||
pool_max_idle_per_host: Option<usize>,
|
||
pool_idle_timeout: Option<serde_json::Value>,
|
||
#[serde(default = "default_true")]
|
||
http1: bool,
|
||
#[serde(default = "default_true")]
|
||
http2: bool,
|
||
#[serde(default)]
|
||
allow_host: bool,
|
||
}
|
||
|
||
fn default_true() -> bool {
|
||
true
|
||
}
|
||
|
||
#[op2]
|
||
#[smi]
|
||
pub fn op_fetch_custom_client<FP>(
|
||
state: &mut OpState,
|
||
#[serde] args: CreateHttpClientArgs,
|
||
#[cppgc] tls_keys: &TlsKeysHolder,
|
||
) -> Result<ResourceId, AnyError>
|
||
where
|
||
FP: FetchPermissions + 'static,
|
||
{
|
||
if let Some(proxy) = args.proxy.clone() {
|
||
let permissions = state.borrow_mut::<FP>();
|
||
let url = Url::parse(&proxy.url)?;
|
||
permissions.check_net_url(&url, "Deno.createHttpClient()")?;
|
||
}
|
||
|
||
let options = state.borrow::<Options>();
|
||
let ca_certs = args
|
||
.ca_certs
|
||
.into_iter()
|
||
.map(|cert| cert.into_bytes())
|
||
.collect::<Vec<_>>();
|
||
|
||
let client = create_http_client(
|
||
&options.user_agent,
|
||
CreateHttpClientOptions {
|
||
root_cert_store: options.root_cert_store()?,
|
||
ca_certs,
|
||
proxy: args.proxy,
|
||
unsafely_ignore_certificate_errors: options
|
||
.unsafely_ignore_certificate_errors
|
||
.clone(),
|
||
client_cert_chain_and_key: tls_keys.take().try_into().unwrap(),
|
||
pool_max_idle_per_host: args.pool_max_idle_per_host,
|
||
pool_idle_timeout: args.pool_idle_timeout.and_then(
|
||
|timeout| match timeout {
|
||
serde_json::Value::Bool(true) => None,
|
||
serde_json::Value::Bool(false) => Some(None),
|
||
serde_json::Value::Number(specify) => {
|
||
Some(Some(specify.as_u64().unwrap_or_default()))
|
||
}
|
||
_ => Some(None),
|
||
},
|
||
),
|
||
http1: args.http1,
|
||
http2: args.http2,
|
||
},
|
||
)?;
|
||
|
||
let rid = state
|
||
.resource_table
|
||
.add(HttpClientResource::new(client, args.allow_host));
|
||
Ok(rid)
|
||
}
|
||
|
||
#[derive(Debug, Clone)]
|
||
pub struct CreateHttpClientOptions {
|
||
pub root_cert_store: Option<RootCertStore>,
|
||
pub ca_certs: Vec<Vec<u8>>,
|
||
pub proxy: Option<Proxy>,
|
||
pub unsafely_ignore_certificate_errors: Option<Vec<String>>,
|
||
pub client_cert_chain_and_key: Option<TlsKey>,
|
||
pub pool_max_idle_per_host: Option<usize>,
|
||
pub pool_idle_timeout: Option<Option<u64>>,
|
||
pub http1: bool,
|
||
pub http2: bool,
|
||
}
|
||
|
||
impl Default for CreateHttpClientOptions {
|
||
fn default() -> Self {
|
||
CreateHttpClientOptions {
|
||
root_cert_store: None,
|
||
ca_certs: vec![],
|
||
proxy: None,
|
||
unsafely_ignore_certificate_errors: None,
|
||
client_cert_chain_and_key: None,
|
||
pool_max_idle_per_host: None,
|
||
pool_idle_timeout: None,
|
||
http1: true,
|
||
http2: true,
|
||
}
|
||
}
|
||
}
|
||
|
||
/// Create new instance of async Client. This client supports
|
||
/// proxies and doesn't follow redirects.
|
||
pub fn create_http_client(
|
||
user_agent: &str,
|
||
options: CreateHttpClientOptions,
|
||
) -> Result<Client, AnyError> {
|
||
let mut tls_config = deno_tls::create_client_config(
|
||
options.root_cert_store,
|
||
options.ca_certs,
|
||
options.unsafely_ignore_certificate_errors,
|
||
options.client_cert_chain_and_key.into(),
|
||
deno_tls::SocketUse::Http,
|
||
)?;
|
||
|
||
// Proxy TLS should not send ALPN
|
||
tls_config.alpn_protocols.clear();
|
||
let proxy_tls_config = Arc::from(tls_config.clone());
|
||
|
||
let mut alpn_protocols = vec![];
|
||
if options.http2 {
|
||
alpn_protocols.push("h2".into());
|
||
}
|
||
if options.http1 {
|
||
alpn_protocols.push("http/1.1".into());
|
||
}
|
||
tls_config.alpn_protocols = alpn_protocols;
|
||
let tls_config = Arc::from(tls_config);
|
||
|
||
let mut http_connector = HttpConnector::new();
|
||
http_connector.enforce_http(false);
|
||
|
||
let user_agent = user_agent.parse::<HeaderValue>().map_err(|_| {
|
||
type_error(format!(
|
||
"Illegal characters in User-Agent: received {user_agent}"
|
||
))
|
||
})?;
|
||
|
||
let mut builder =
|
||
hyper_util::client::legacy::Builder::new(TokioExecutor::new());
|
||
builder.timer(TokioTimer::new());
|
||
builder.pool_timer(TokioTimer::new());
|
||
|
||
let mut proxies = proxy::from_env();
|
||
if let Some(proxy) = options.proxy {
|
||
let mut intercept = proxy::Intercept::all(&proxy.url)
|
||
.ok_or_else(|| type_error("invalid proxy url"))?;
|
||
if let Some(basic_auth) = &proxy.basic_auth {
|
||
intercept.set_auth(&basic_auth.username, &basic_auth.password);
|
||
}
|
||
proxies.prepend(intercept);
|
||
}
|
||
let proxies = Arc::new(proxies);
|
||
let connector = proxy::ProxyConnector {
|
||
http: http_connector,
|
||
proxies: proxies.clone(),
|
||
tls: tls_config,
|
||
tls_proxy: proxy_tls_config,
|
||
user_agent: Some(user_agent.clone()),
|
||
};
|
||
|
||
if let Some(pool_max_idle_per_host) = options.pool_max_idle_per_host {
|
||
builder.pool_max_idle_per_host(pool_max_idle_per_host);
|
||
}
|
||
|
||
if let Some(pool_idle_timeout) = options.pool_idle_timeout {
|
||
builder.pool_idle_timeout(
|
||
pool_idle_timeout.map(std::time::Duration::from_millis),
|
||
);
|
||
}
|
||
|
||
match (options.http1, options.http2) {
|
||
(true, false) => {} // noop, handled by ALPN above
|
||
(false, true) => {
|
||
builder.http2_only(true);
|
||
}
|
||
(true, true) => {}
|
||
(false, false) => {
|
||
return Err(type_error("Cannot create Http Client: either `http1` or `http2` needs to be set to true"))
|
||
}
|
||
}
|
||
|
||
let pooled_client = builder.build(connector);
|
||
let decompress = Decompression::new(pooled_client).gzip(true).br(true);
|
||
|
||
Ok(Client {
|
||
inner: decompress,
|
||
proxies,
|
||
user_agent,
|
||
})
|
||
}
|
||
|
||
#[op2]
|
||
#[serde]
|
||
pub fn op_utf8_to_byte_string(
|
||
#[string] input: String,
|
||
) -> Result<ByteString, AnyError> {
|
||
Ok(input.into())
|
||
}
|
||
|
||
#[derive(Clone, Debug)]
|
||
pub struct Client {
|
||
inner: Decompression<hyper_util::client::legacy::Client<Connector, ReqBody>>,
|
||
// Used to check whether to include a proxy-authorization header
|
||
proxies: Arc<proxy::Proxies>,
|
||
user_agent: HeaderValue,
|
||
}
|
||
|
||
type Connector = proxy::ProxyConnector<HttpConnector>;
|
||
|
||
// clippy is wrong here
|
||
#[allow(clippy::declare_interior_mutable_const)]
|
||
const STAR_STAR: HeaderValue = HeaderValue::from_static("*/*");
|
||
|
||
#[derive(Debug)]
|
||
pub struct ClientSendError {
|
||
uri: Uri,
|
||
source: hyper_util::client::legacy::Error,
|
||
}
|
||
|
||
impl ClientSendError {
|
||
pub fn is_connect_error(&self) -> bool {
|
||
self.source.is_connect()
|
||
}
|
||
|
||
fn http_info(&self) -> Option<HttpInfo> {
|
||
let mut exts = Extensions::new();
|
||
self.source.connect_info()?.get_extras(&mut exts);
|
||
exts.remove::<HttpInfo>()
|
||
}
|
||
}
|
||
|
||
impl std::fmt::Display for ClientSendError {
|
||
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
|
||
// NOTE: we can use `std::error::Report` instead once it's stabilized.
|
||
let detail = error_reporter::Report::new(&self.source);
|
||
|
||
match self.http_info() {
|
||
Some(http_info) => {
|
||
write!(
|
||
f,
|
||
"error sending request from {src} for {uri} ({dst}): {detail}",
|
||
src = http_info.local_addr(),
|
||
uri = self.uri,
|
||
dst = http_info.remote_addr(),
|
||
detail = detail,
|
||
)
|
||
}
|
||
None => {
|
||
write!(
|
||
f,
|
||
"error sending request for url ({uri}): {detail}",
|
||
uri = self.uri,
|
||
detail = detail,
|
||
)
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
impl std::error::Error for ClientSendError {
|
||
fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
|
||
Some(&self.source)
|
||
}
|
||
}
|
||
|
||
impl Client {
|
||
pub async fn send(
|
||
self,
|
||
mut req: http::Request<ReqBody>,
|
||
) -> Result<http::Response<ResBody>, ClientSendError> {
|
||
req
|
||
.headers_mut()
|
||
.entry(USER_AGENT)
|
||
.or_insert_with(|| self.user_agent.clone());
|
||
|
||
req.headers_mut().entry(ACCEPT).or_insert(STAR_STAR);
|
||
|
||
if let Some(auth) = self.proxies.http_forward_auth(req.uri()) {
|
||
req.headers_mut().insert(PROXY_AUTHORIZATION, auth.clone());
|
||
}
|
||
|
||
let uri = req.uri().clone();
|
||
|
||
let resp = self
|
||
.inner
|
||
.oneshot(req)
|
||
.await
|
||
.map_err(|e| ClientSendError { uri, source: e })?;
|
||
Ok(resp.map(|b| b.map_err(|e| anyhow!(e)).boxed()))
|
||
}
|
||
}
|
||
|
||
pub type ReqBody = http_body_util::combinators::BoxBody<Bytes, Error>;
|
||
pub type ResBody = http_body_util::combinators::BoxBody<Bytes, Error>;
|
||
|
||
/// Copied from https://github.com/seanmonstar/reqwest/blob/b9d62a0323d96f11672a61a17bf8849baec00275/src/async_impl/request.rs#L572
|
||
/// Check the request URL for a "username:password" type authority, and if
|
||
/// found, remove it from the URL and return it.
|
||
pub fn extract_authority(url: &mut Url) -> Option<(String, Option<String>)> {
|
||
use percent_encoding::percent_decode;
|
||
|
||
if url.has_authority() {
|
||
let username: String = percent_decode(url.username().as_bytes())
|
||
.decode_utf8()
|
||
.ok()?
|
||
.into();
|
||
let password = url.password().and_then(|pass| {
|
||
percent_decode(pass.as_bytes())
|
||
.decode_utf8()
|
||
.ok()
|
||
.map(String::from)
|
||
});
|
||
if !username.is_empty() || password.is_some() {
|
||
url
|
||
.set_username("")
|
||
.expect("has_authority means set_username shouldn't fail");
|
||
url
|
||
.set_password(None)
|
||
.expect("has_authority means set_password shouldn't fail");
|
||
return Some((username, password));
|
||
}
|
||
}
|
||
|
||
None
|
||
}
|