deno_runtime/ops/
http.rs

1// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
2
3use std::rc::Rc;
4
5use deno_core::op2;
6use deno_core::OpState;
7use deno_core::ResourceId;
8use deno_http::http_create_conn_resource;
9use deno_net::io::TcpStreamResource;
10use deno_net::ops_tls::TlsStreamResource;
11
12pub const UNSTABLE_FEATURE_NAME: &str = "http";
13
14deno_core::extension!(deno_http_runtime, ops = [op_http_start],);
15
16#[derive(Debug, thiserror::Error)]
17pub enum HttpStartError {
18  #[error("TCP stream is currently in use")]
19  TcpStreamInUse,
20  #[error("TLS stream is currently in use")]
21  TlsStreamInUse,
22  #[error("Unix socket is currently in use")]
23  UnixSocketInUse,
24  #[error(transparent)]
25  ReuniteTcp(#[from] tokio::net::tcp::ReuniteError),
26  #[cfg(unix)]
27  #[error(transparent)]
28  ReuniteUnix(#[from] tokio::net::unix::ReuniteError),
29  #[error("{0}")]
30  Io(#[from] std::io::Error),
31  #[error(transparent)]
32  Other(deno_core::error::AnyError),
33}
34
35#[op2(fast)]
36#[smi]
37fn op_http_start(
38  state: &mut OpState,
39  #[smi] tcp_stream_rid: ResourceId,
40) -> Result<ResourceId, HttpStartError> {
41  if let Ok(resource_rc) = state
42    .resource_table
43    .take::<TcpStreamResource>(tcp_stream_rid)
44  {
45    // This TCP connection might be used somewhere else. If it's the case, we cannot proceed with the
46    // process of starting a HTTP server on top of this TCP connection, so we just return a Busy error.
47    // See also: https://github.com/denoland/deno/pull/16242
48    let resource = Rc::try_unwrap(resource_rc)
49      .map_err(|_| HttpStartError::TcpStreamInUse)?;
50    let (read_half, write_half) = resource.into_inner();
51    let tcp_stream = read_half.reunite(write_half)?;
52    let addr = tcp_stream.local_addr()?;
53    return Ok(http_create_conn_resource(state, tcp_stream, addr, "http"));
54  }
55
56  if let Ok(resource_rc) = state
57    .resource_table
58    .take::<TlsStreamResource>(tcp_stream_rid)
59  {
60    // This TLS connection might be used somewhere else. If it's the case, we cannot proceed with the
61    // process of starting a HTTP server on top of this TLS connection, so we just return a Busy error.
62    // See also: https://github.com/denoland/deno/pull/16242
63    let resource = Rc::try_unwrap(resource_rc)
64      .map_err(|_| HttpStartError::TlsStreamInUse)?;
65    let (read_half, write_half) = resource.into_inner();
66    let tls_stream = read_half.unsplit(write_half);
67    let addr = tls_stream.local_addr()?;
68    return Ok(http_create_conn_resource(state, tls_stream, addr, "https"));
69  }
70
71  #[cfg(unix)]
72  if let Ok(resource_rc) = state
73    .resource_table
74    .take::<deno_net::io::UnixStreamResource>(tcp_stream_rid)
75  {
76    // This UNIX socket might be used somewhere else. If it's the case, we cannot proceed with the
77    // process of starting a HTTP server on top of this UNIX socket, so we just return a Busy error.
78    // See also: https://github.com/denoland/deno/pull/16242
79    let resource = Rc::try_unwrap(resource_rc)
80      .map_err(|_| HttpStartError::UnixSocketInUse)?;
81    let (read_half, write_half) = resource.into_inner();
82    let unix_stream = read_half.reunite(write_half)?;
83    let addr = unix_stream.local_addr()?;
84    return Ok(http_create_conn_resource(
85      state,
86      unix_stream,
87      addr,
88      "http+unix",
89    ));
90  }
91
92  Err(HttpStartError::Other(deno_core::error::bad_resource_id()))
93}
deno_runtime/ops/http.rs

deno_runtime/ops/
http.rs
