feat: Add "deno_net" extension (#11150)

This commits moves implementation of net related APIs available on "Deno" namespace to "deno_net" extension. Following APIs were moved: - Deno.listen() - Deno.connect() - Deno.listenTls() - Deno.serveHttp() - Deno.shutdown() - Deno.resolveDns() - Deno.listenDatagram() - Deno.startTls() - Deno.Conn - Deno.Listener - Deno.DatagramConn
2024-11-25 15:29:32 -05:00 · 2021-06-29 01:43:03 +02:00 · 2021-06-29 01:43:03 +02:00 · 38a7128cdd
commit 38a7128cdd
parent 30cba24848
34 changed files with 1049 additions and 679 deletions
--- a/Cargo.lock
+++ b/Cargo.lock
@ -536,6 +536,7 @@ dependencies = [
 "deno_doc",
 "deno_fetch",
 "deno_lint",
 "deno_net",
 "deno_runtime",
 "deno_timers",
 "deno_url",
@ -702,17 +703,37 @@ dependencies = [
 "swc_ecmascript",
 ]
 [[package]]
 name = "deno_net"
 version = "0.1.0"
 dependencies = [
 "bytes",
 "deno_core",
 "http",
 "hyper",
 "lazy_static",
 "log",
 "rustls",
 "serde",
 "tokio",
 "tokio-util",
 "trust-dns-proto",
 "trust-dns-resolver",
 "webpki",
 "webpki-roots",
 ]
 [[package]]
 name = "deno_runtime"
 version = "0.18.0"
 dependencies = [
 "atty",
 "bytes",
 "deno_broadcast_channel",
 "deno_console",
 "deno_core",
 "deno_crypto",
 "deno_fetch",
 "deno_net",
 "deno_timers",
 "deno_url",
 "deno_web",
@ -735,18 +756,12 @@ dependencies = [
 "percent-encoding",
 "regex",
 "ring",
 "rustls",
 "serde",
 "sys-info",
 "termcolor",
 "test_util",
 "tokio",
 "tokio-util",
 "trust-dns-proto",
 "trust-dns-resolver",
 "uuid",
 "webpki",
 "webpki-roots",
 "winapi 0.3.9",
 "winres",
 ]
--- a/Cargo.toml
+++ b/Cargo.toml
@ -12,6 +12,7 @@ members = [
  "extensions/console",
  "extensions/crypto",
  "extensions/fetch",
  "extensions/net",
  "extensions/timers",
  "extensions/url",
  "extensions/web",
--- a/cli/Cargo.toml
+++ b/cli/Cargo.toml
@ -25,6 +25,7 @@ deno_console = { version = "0.10.0", path = "../extensions/console" }
 deno_core = { version = "0.92.0", path = "../core" }
 deno_crypto = { version = "0.24.0", path = "../extensions/crypto" }
 deno_fetch = { version = "0.32.0", path = "../extensions/fetch" }
 deno_net = { version = "0.1.0", path = "../extensions/net" }
 deno_timers = { version = "0.8.0", path = "../extensions/timers" }
 deno_url = { version = "0.10.0", path = "../extensions/url" }
 deno_web = { version = "0.41.0", path = "../extensions/web" }
--- a/cli/build.rs
+++ b/cli/build.rs
@ -68,6 +68,9 @@ fn create_compiler_snapshot(
    "deno.broadcast_channel",
    deno_broadcast_channel::get_declaration(),
  );
  op_crate_libs.insert("deno.net", deno_net::get_declaration());
  op_crate_libs
    .insert("deno.net_unstable", deno_net::get_unstable_declaration());
  // ensure we invalidate the build properly.
  for (_, path) in op_crate_libs.iter() {
@ -302,6 +305,14 @@ fn main() {
    "cargo:rustc-env=DENO_BROADCAST_CHANNEL_LIB_PATH={}",
    deno_broadcast_channel::get_declaration().display()
  );
  println!(
    "cargo:rustc-env=DENO_NET_LIB_PATH={}",
    deno_net::get_declaration().display()
  );
  println!(
    "cargo:rustc-env=DENO_NET_UNSTABLE_LIB_PATH={}",
    deno_net::get_unstable_declaration().display()
  );
  println!("cargo:rustc-env=TARGET={}", env::var("TARGET").unwrap());
  println!("cargo:rustc-env=PROFILE={}", env::var("PROFILE").unwrap());
--- a/cli/dts/lib.deno.ns.d.ts
+++ b/cli/dts/lib.deno.ns.d.ts
@ -2,6 +2,7 @@
 /// <reference no-default-lib="true" />
 /// <reference lib="esnext" />
 /// <reference lib="deno.net" />
 /** Deno provides extra properties on `import.meta`.  These are included here
 * to ensure that these are still available when using the Deno namespace in
@ -1784,149 +1785,6 @@ declare namespace Deno {
   * Requires `allow-write` permission. */
  export function truncate(name: string, len?: number): Promise<void>;
  export interface NetAddr {
    transport: "tcp" | "udp";
    hostname: string;
    port: number;
  }
  export interface UnixAddr {
    transport: "unix" | "unixpacket";
    path: string;
  }
  export type Addr = NetAddr | UnixAddr;
  /** A generic network listener for stream-oriented protocols. */
  export interface Listener extends AsyncIterable<Conn> {
    /** Waits for and resolves to the next connection to the `Listener`. */
    accept(): Promise<Conn>;
    /** Close closes the listener. Any pending accept promises will be rejected
     * with errors. */
    close(): void;
    /** Return the address of the `Listener`. */
    readonly addr: Addr;
    /** Return the rid of the `Listener`. */
    readonly rid: number;
    [Symbol.asyncIterator](): AsyncIterableIterator<Conn>;
  }
  export interface Conn extends Reader, Writer, Closer {
    /** The local address of the connection. */
    readonly localAddr: Addr;
    /** The remote address of the connection. */
    readonly remoteAddr: Addr;
    /** The resource ID of the connection. */
    readonly rid: number;
    /** Shuts down (`shutdown(2)`) the write side of the connection. Most
     * callers should just use `close()`. */
    closeWrite(): Promise<void>;
  }
  export interface ListenOptions {
    /** The port to listen on. */
    port: number;
    /** A literal IP address or host name that can be resolved to an IP address.
     * If not specified, defaults to `0.0.0.0`. */
    hostname?: string;
  }
  /** Listen announces on the local transport address.
   *
   * ```ts
   * const listener1 = Deno.listen({ port: 80 })
   * const listener2 = Deno.listen({ hostname: "192.0.2.1", port: 80 })
   * const listener3 = Deno.listen({ hostname: "[2001:db8::1]", port: 80 });
   * const listener4 = Deno.listen({ hostname: "golang.org", port: 80, transport: "tcp" });
   * ```
   *
   * Requires `allow-net` permission. */
  export function listen(
    options: ListenOptions & { transport?: "tcp" },
  ): Listener;
  export interface ListenTlsOptions extends ListenOptions {
    /** Server certificate file. */
    certFile: string;
    /** Server public key file. */
    keyFile: string;
    transport?: "tcp";
  }
  /** Listen announces on the local transport address over TLS (transport layer
   * security).
   *
   * ```ts
   * const lstnr = Deno.listenTls({ port: 443, certFile: "./server.crt", keyFile: "./server.key" });
   * ```
   *
   * Requires `allow-net` permission. */
  export function listenTls(options: ListenTlsOptions): Listener;
  export interface ConnectOptions {
    /** The port to connect to. */
    port: number;
    /** A literal IP address or host name that can be resolved to an IP address.
     * If not specified, defaults to `127.0.0.1`. */
    hostname?: string;
    transport?: "tcp";
  }
  /**
   * Connects to the hostname (default is "127.0.0.1") and port on the named
   * transport (default is "tcp"), and resolves to the connection (`Conn`).
   *
   * ```ts
   * const conn1 = await Deno.connect({ port: 80 });
   * const conn2 = await Deno.connect({ hostname: "192.0.2.1", port: 80 });
   * const conn3 = await Deno.connect({ hostname: "[2001:db8::1]", port: 80 });
   * const conn4 = await Deno.connect({ hostname: "golang.org", port: 80, transport: "tcp" });
   * ```
   *
   * Requires `allow-net` permission for "tcp". */
  export function connect(options: ConnectOptions): Promise<Conn>;
  export interface ConnectTlsOptions {
    /** The port to connect to. */
    port: number;
    /** A literal IP address or host name that can be resolved to an IP address.
     * If not specified, defaults to `127.0.0.1`. */
    hostname?: string;
    /** Server certificate file. */
    certFile?: string;
  }
  /** Establishes a secure connection over TLS (transport layer security) using
   * an optional cert file, hostname (default is "127.0.0.1") and port.  The
   * cert file is optional and if not included Mozilla's root certificates will
   * be used (see also https://github.com/ctz/webpki-roots for specifics)
   *
   * ```ts
   * const conn1 = await Deno.connectTls({ port: 80 });
   * const conn2 = await Deno.connectTls({ certFile: "./certs/my_custom_root_CA.pem", hostname: "192.0.2.1", port: 80 });
   * const conn3 = await Deno.connectTls({ hostname: "[2001:db8::1]", port: 80 });
   * const conn4 = await Deno.connectTls({ certFile: "./certs/my_custom_root_CA.pem", hostname: "golang.org", port: 80});
   * ```
   *
   * Requires `allow-net` permission.
   */
  export function connectTls(options: ConnectTlsOptions): Promise<Conn>;
  /** Shutdown socket send operations.
   *
   * Matches behavior of POSIX shutdown(3).
   *
   * ```ts
   * const listener = Deno.listen({ port: 80 });
   * const conn = await listener.accept();
   * Deno.shutdown(conn.rid);
   * ```
   */
  export function shutdown(rid: number): Promise<void>;
  export interface Metrics {
    opsDispatched: number;
    opsDispatchedSync: number;
--- a/cli/dts/lib.deno.unstable.d.ts
+++ b/cli/dts/lib.deno.unstable.d.ts
@ -2,6 +2,7 @@
 /// <reference no-default-lib="true" />
 /// <reference lib="deno.ns" />
 /// <reference lib="deno.net_unstable" />
 declare namespace Deno {
  /**
@ -812,232 +813,6 @@ declare namespace Deno {
    mtime: number | Date,
  ): Promise<void>;
  /** The type of the resource record.
   * Only the listed types are supported currently. */
  export type RecordType =
    | "A"
    | "AAAA"
    | "ANAME"
    | "CNAME"
    | "MX"
    | "PTR"
    | "SRV"
    | "TXT";
  export interface ResolveDnsOptions {
    /** The name server to be used for lookups.
     * If not specified, defaults to the system configuration e.g. `/etc/resolv.conf` on Unix. */
    nameServer?: {
      /** The IP address of the name server */
      ipAddr: string;
      /** The port number the query will be sent to.
       * If not specified, defaults to 53. */
      port?: number;
    };
  }
  /** If `resolveDns` is called with "MX" record type specified, it will return an array of this interface. */
  export interface MXRecord {
    preference: number;
    exchange: string;
  }
  /** If `resolveDns` is called with "SRV" record type specified, it will return an array of this interface. */
  export interface SRVRecord {
    priority: number;
    weight: number;
    port: number;
    target: string;
  }
  export function resolveDns(
    query: string,
    recordType: "A" | "AAAA" | "ANAME" | "CNAME" | "PTR",
    options?: ResolveDnsOptions,
  ): Promise<string[]>;
  export function resolveDns(
    query: string,
    recordType: "MX",
    options?: ResolveDnsOptions,
  ): Promise<MXRecord[]>;
  export function resolveDns(
    query: string,
    recordType: "SRV",
    options?: ResolveDnsOptions,
  ): Promise<SRVRecord[]>;
  export function resolveDns(
    query: string,
    recordType: "TXT",
    options?: ResolveDnsOptions,
  ): Promise<string[][]>;
  /** ** UNSTABLE**: new API, yet to be vetted.
   *
   * Performs DNS resolution against the given query, returning resolved records.
   * Fails in the cases such as:
   * - the query is in invalid format
   * - the options have an invalid parameter, e.g. `nameServer.port` is beyond the range of 16-bit unsigned integer
   * - timed out
   *
   * ```ts
   * const a = await Deno.resolveDns("example.com", "A");
   *
   * const aaaa = await Deno.resolveDns("example.com", "AAAA", {
   *   nameServer: { ipAddr: "8.8.8.8", port: 1234 },
   * });
   * ```
   *
   * Requires `allow-net` permission.
   */
  export function resolveDns(
    query: string,
    recordType: RecordType,
    options?: ResolveDnsOptions,
  ): Promise<string[] | MXRecord[] | SRVRecord[] | string[][]>;
  /** **UNSTABLE**: new API, yet to be vetted.
   *
   * A generic transport listener for message-oriented protocols. */
  export interface DatagramConn extends AsyncIterable<[Uint8Array, Addr]> {
    /** **UNSTABLE**: new API, yet to be vetted.
     *
     * Waits for and resolves to the next message to the `UDPConn`. */
    receive(p?: Uint8Array): Promise<[Uint8Array, Addr]>;
    /** UNSTABLE: new API, yet to be vetted.
     *
     * Sends a message to the target. */
    send(p: Uint8Array, addr: Addr): Promise<number>;
    /** UNSTABLE: new API, yet to be vetted.
     *
     * Close closes the socket. Any pending message promises will be rejected
     * with errors. */
    close(): void;
    /** Return the address of the `UDPConn`. */
    readonly addr: Addr;
    [Symbol.asyncIterator](): AsyncIterableIterator<[Uint8Array, Addr]>;
  }
  export interface UnixListenOptions {
    /** A Path to the Unix Socket. */
    path: string;
  }
  /** **UNSTABLE**: new API, yet to be vetted.
   *
   * Listen announces on the local transport address.
   *
   * ```ts
   * const listener = Deno.listen({ path: "/foo/bar.sock", transport: "unix" })
   * ```
   *
   * Requires `allow-read` and `allow-write` permission. */
  export function listen(
    options: UnixListenOptions & { transport: "unix" },
  ): Listener;
  /** **UNSTABLE**: new API, yet to be vetted
   *
   * Listen announces on the local transport address.
   *
   * ```ts
   * const listener1 = Deno.listenDatagram({
   *   port: 80,
   *   transport: "udp"
   * });
   * const listener2 = Deno.listenDatagram({
   *   hostname: "golang.org",
   *   port: 80,
   *   transport: "udp"
   * });
   * ```
   *
   * Requires `allow-net` permission. */
  export function listenDatagram(
    options: ListenOptions & { transport: "udp" },
  ): DatagramConn;
  /** **UNSTABLE**: new API, yet to be vetted
   *
   * Listen announces on the local transport address.
   *
   * ```ts
   * const listener = Deno.listenDatagram({
   *   path: "/foo/bar.sock",
   *   transport: "unixpacket"
   * });
   * ```
   *
   * Requires `allow-read` and `allow-write` permission. */
  export function listenDatagram(
    options: UnixListenOptions & { transport: "unixpacket" },
  ): DatagramConn;
  export interface UnixConnectOptions {
    transport: "unix";
    path: string;
  }
  /** **UNSTABLE**:  The unix socket transport is unstable as a new API yet to
   * be vetted.  The TCP transport is considered stable.
   *
   * Connects to the hostname (default is "127.0.0.1") and port on the named
   * transport (default is "tcp"), and resolves to the connection (`Conn`).
   *
   * ```ts
   * const conn1 = await Deno.connect({ port: 80 });
   * const conn2 = await Deno.connect({ hostname: "192.0.2.1", port: 80 });
   * const conn3 = await Deno.connect({ hostname: "[2001:db8::1]", port: 80 });
   * const conn4 = await Deno.connect({ hostname: "golang.org", port: 80, transport: "tcp" });
   * const conn5 = await Deno.connect({ path: "/foo/bar.sock", transport: "unix" });
   * ```
   *
   * Requires `allow-net` permission for "tcp" and `allow-read` for "unix". */
  export function connect(
    options: ConnectOptions | UnixConnectOptions,
  ): Promise<Conn>;
  export interface StartTlsOptions {
    /** A literal IP address or host name that can be resolved to an IP address.
     * If not specified, defaults to `127.0.0.1`. */
    hostname?: string;
    /** Server certificate file. */
    certFile?: string;
  }
  /** **UNSTABLE**: new API, yet to be vetted.
   *
   * Start TLS handshake from an existing connection using
   * an optional cert file, hostname (default is "127.0.0.1").  The
   * cert file is optional and if not included Mozilla's root certificates will
   * be used (see also https://github.com/ctz/webpki-roots for specifics)
   * Using this function requires that the other end of the connection is
   * prepared for TLS handshake.
   *
   * ```ts
   * const conn = await Deno.connect({ port: 80, hostname: "127.0.0.1" });
   * const tlsConn = await Deno.startTls(conn, { certFile: "./certs/my_custom_root_CA.pem", hostname: "localhost" });
   * ```
   *
   * Requires `allow-net` permission.
   */
  export function startTls(
    conn: Conn,
    options?: StartTlsOptions,
  ): Promise<Conn>;
  export interface ListenTlsOptions {
    /** **UNSTABLE**: new API, yet to be vetted.
     *
     * Application-Layer Protocol Negotiation (ALPN) protocols to announce to
     * the client. If not specified, no ALPN extension will be included in the
     * TLS handshake.
     */
    alpnProtocols?: string[];
  }
  /** **UNSTABLE**: The `signo` argument may change to require the Deno.Signal
   * enum.
   *
@ -1182,36 +957,6 @@ declare namespace Deno {
    bytesReceived: number;
  }
  export interface RequestEvent {
    readonly request: Request;
    respondWith(r: Response | Promise<Response>): Promise<void>;
  }
  export interface HttpConn extends AsyncIterable<RequestEvent> {
    readonly rid: number;
    nextRequest(): Promise<RequestEvent | null>;
    close(): void;
  }
  /** **UNSTABLE**: new API, yet to be vetted.
   *
   * Services HTTP requests given a TCP or TLS socket.
   *
   * ```ts
   * const conn = await Deno.connect({ port: 80, hostname: "127.0.0.1" });
   * const httpConn = Deno.serveHttp(conn);
   * const e = await httpConn.nextRequest();
   * if (e) {
   *   e.respondWith(new Response("Hello World"));
   * }
   * ```
   *
   * If `httpConn.nextRequest()` encounters an error or returns `null`
   * then the underlying HttpConn resource is closed automatically.
   */
  export function serveHttp(conn: Conn): HttpConn;
  /** **UNSTABLE**: New option, yet to be vetted. */
  export interface TestDefinition {
    /** Specifies the permissions that should be used to run the test.
--- a/cli/main.rs
+++ b/cli/main.rs
@ -334,12 +334,14 @@ pub fn get_types(unstable: bool) -> String {
    crate::tsc::DENO_WEBSTORAGE_LIB,
    crate::tsc::DENO_CRYPTO_LIB,
    crate::tsc::DENO_BROADCAST_CHANNEL_LIB,
    crate::tsc::DENO_NET_LIB,
    crate::tsc::SHARED_GLOBALS_LIB,
    crate::tsc::WINDOW_LIB,
  ];
  if unstable {
    types.push(crate::tsc::UNSTABLE_NS_LIB);
    types.push(crate::tsc::DENO_NET_UNSTABLE_LIB);
  }
  types.join("\n")
--- a/cli/tests/integration/mod.rs
+++ b/cli/tests/integration/mod.rs
@ -2,9 +2,9 @@
 use crate::itest;
 use deno_core::url;
-use deno_runtime::ops::tls::rustls;
+use deno_runtime::deno_net::ops_tls::rustls;
-use deno_runtime::ops::tls::webpki;
+use deno_runtime::deno_net::ops_tls::webpki;
-use deno_runtime::ops::tls::TlsStream;
+use deno_runtime::deno_net::ops_tls::TlsStream;
 use std::fs;
 use std::io::BufReader;
 use std::io::Cursor;
--- a/cli/tsc.rs
+++ b/cli/tsc.rs
@ -44,6 +44,9 @@ pub static DENO_WEBSTORAGE_LIB: &str =
 pub static DENO_CRYPTO_LIB: &str = include_str!(env!("DENO_CRYPTO_LIB_PATH"));
 pub static DENO_BROADCAST_CHANNEL_LIB: &str =
  include_str!(env!("DENO_BROADCAST_CHANNEL_LIB_PATH"));
 pub static DENO_NET_LIB: &str = include_str!(env!("DENO_NET_LIB_PATH"));
 pub static DENO_NET_UNSTABLE_LIB: &str =
  include_str!(env!("DENO_NET_UNSTABLE_LIB_PATH"));
 pub static SHARED_GLOBALS_LIB: &str =
  include_str!("dts/lib.deno.shared_globals.d.ts");
 pub static WINDOW_LIB: &str = include_str!("dts/lib.deno.window.d.ts");
--- a/core/core.js
+++ b/core/core.js
@ -132,6 +132,23 @@
    opSync("op_print", str, isErr);
  }
  // Some "extensions" rely on "BadResource" and "Interrupted" errors in the
  // JS code (eg. "deno_net") so they are provided in "Deno.core" but later
  // reexported on "Deno.errors"
  class BadResource extends Error {
    constructor(msg) {
      super(msg);
      this.name = "BadResource";
    }
  }
  class Interrupted extends Error {
    constructor(msg) {
      super(msg);
      this.name = "Interrupted";
    }
  }
  // Provide bootstrap namespace
  window.__bootstrap = {};
  // Extra Deno.core.* exports
@ -146,5 +163,7 @@
    registerErrorClass,
    handleAsyncMsgFromRust,
    syncOpsCache,
    BadResource,
    Interrupted,
  });
 })(this);
--- a/extensions/net/01_net.js
+++ b/extensions/net/01_net.js
@ -3,11 +3,25 @@
 ((window) => {
  const core = window.Deno.core;
-  const { errors } = window.__bootstrap.errors;
+  const { BadResource } = core;
-  const { read, write } = window.__bootstrap.io;
+
  async function read(
    rid,
    buffer,
  ) {
    if (buffer.length === 0) {
      return 0;
    }
    const nread = await core.opAsync("op_net_read_async", rid, buffer);
    return nread === 0 ? null : nread;
  }
  async function write(rid, data) {
    return await core.opAsync("op_net_write_async", rid, data);
  }
  function shutdown(rid) {
-    return core.opAsync("op_shutdown", rid);
+    return core.opAsync("op_net_shutdown", rid);
  }
  function opAccept(rid, transport) {
@ -104,7 +118,7 @@
      try {
        conn = await this.accept();
      } catch (error) {
-        if (error instanceof errors.BadResource) {
+        if (error instanceof BadResource) {
          return { value: undefined, done: true };
        }
        throw error;
@ -171,7 +185,7 @@
        try {
          yield await this.receive();
        } catch (err) {
-          if (err instanceof errors.BadResource) {
+          if (err instanceof BadResource) {
            break;
          }
          throw err;
--- a/extensions/net/02_tls.js
+++ b/extensions/net/02_tls.js
--- a/extensions/net/03_http.js
+++ b/extensions/net/03_http.js
@ -5,8 +5,8 @@
  const { InnerBody } = window.__bootstrap.fetchBody;
  const { Response, fromInnerRequest, toInnerResponse, newInnerRequest } =
    window.__bootstrap.fetch;
  const errors = window.__bootstrap.errors.errors;
  const core = window.Deno.core;
  const { BadResource, Interrupted } = core;
  const { ReadableStream } = window.__bootstrap.streams;
  const abortSignal = window.__bootstrap.abortSignal;
@ -42,9 +42,9 @@
        // a generic `BadResource` error. Instead store this error and replace
        // those with it.
        this[connErrorSymbol] = error;
-        if (error instanceof errors.BadResource) {
+        if (error instanceof BadResource) {
          return null;
-        } else if (error instanceof errors.Interrupted) {
+        } else if (error instanceof Interrupted) {
          return null;
        } else if (error.message.includes("connection closed")) {
          return null;
@ -159,7 +159,7 @@
        ], respBody instanceof Uint8Array ? respBody : null);
      } catch (error) {
        const connError = httpConn[connErrorSymbol];
-        if (error instanceof errors.BadResource && connError != null) {
+        if (error instanceof BadResource && connError != null) {
          // deno-lint-ignore no-ex-assign
          error = new connError.constructor(connError.message);
        }
@ -192,7 +192,7 @@
              );
            } catch (error) {
              const connError = httpConn[connErrorSymbol];
-              if (error instanceof errors.BadResource && connError != null) {
+              if (error instanceof BadResource && connError != null) {
                // deno-lint-ignore no-ex-assign
                error = new connError.constructor(connError.message);
              }
--- a/extensions/net/04_net_unstable.js
+++ b/extensions/net/04_net_unstable.js
--- a/extensions/net/Cargo.toml
+++ b/extensions/net/Cargo.toml
@ -0,0 +1,31 @@
 # Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
 [package]
 name = "deno_net"
 version = "0.1.0"
 edition = "2018"
 description = "Networking for Deno"
 authors = ["the Deno authors"]
 license = "MIT"
 readme = "README.md"
 repository = "https://github.com/denoland/deno"
 [lib]
 path = "lib.rs"
 [dependencies]
 deno_core = { version = "0.92.0", path = "../../core" }
 bytes = "1"
 log = "0.4.14"
 lazy_static = "1.4.0"
 http = "0.2.3"
 hyper = { version = "0.14.9", features = ["server", "stream", "http1", "http2", "runtime"] }
 rustls = "0.19.0"
 serde = { version = "1.0.125", features = ["derive"] }
 tokio = { version = "1.7.1", features = ["full"] }
 tokio-util = { version = "0.6", features = ["io"] }
 webpki = "0.21.4"
 webpki-roots = "0.21.1"
 trust-dns-proto = "0.20.3"
 trust-dns-resolver = { version = "0.20.3", features = ["tokio-runtime", "serde-config"] }
--- a/extensions/net/README.md
+++ b/extensions/net/README.md
@ -0,0 +1,30 @@
 # deno_net
 This crate implements networking APIs.
 This crate depends on following extensions:
 - "deno_web"
 - "deno_fetch"
 Following ops are provided:
 - "op_net_read_async"
 - "op_net_write_async"
 - "op_net_shutdown"
 - "op_accept"
 - "op_connect"
 - "op_listen"
 - "op_datagram_receive"
 - "op_datagram_send"
 - "op_dns_resolve"
 - "op_start_tls"
 - "op_connect_tls"
 - "op_listen_tls"
 - "op_accept_tls"
 - "op_http_start"
 - "op_http_request_next"
 - "op_http_request_read"
 - "op_http_response"
 - "op_http_response_write"
 - "op_http_response_close"
--- a/extensions/net/io.rs
+++ b/extensions/net/io.rs
@ -0,0 +1,232 @@
 // Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
 use crate::ops_tls as tls;
 use deno_core::error::null_opbuf;
 use deno_core::error::AnyError;
 use deno_core::error::{bad_resource_id, not_supported};
 use deno_core::op_async;
 use deno_core::AsyncMutFuture;
 use deno_core::AsyncRefCell;
 use deno_core::CancelHandle;
 use deno_core::CancelTryFuture;
 use deno_core::OpPair;
 use deno_core::OpState;
 use deno_core::RcRef;
 use deno_core::Resource;
 use deno_core::ResourceId;
 use deno_core::ZeroCopyBuf;
 use std::borrow::Cow;
 use std::cell::RefCell;
 use std::rc::Rc;
 use tokio::io::AsyncRead;
 use tokio::io::AsyncReadExt;
 use tokio::io::AsyncWrite;
 use tokio::io::AsyncWriteExt;
 use tokio::net::tcp;
 #[cfg(unix)]
 use tokio::net::unix;
 pub fn init() -> Vec<OpPair> {
  vec![
    ("op_net_read_async", op_async(op_read_async)),
    ("op_net_write_async", op_async(op_write_async)),
    ("op_net_shutdown", op_async(op_shutdown)),
  ]
 }
 /// A full duplex resource has a read and write ends that are completely
 /// independent, like TCP/Unix sockets and TLS streams.
 #[derive(Debug)]
 pub struct FullDuplexResource<R, W> {
  rd: AsyncRefCell<R>,
  wr: AsyncRefCell<W>,
  // When a full-duplex resource is closed, all pending 'read' ops are
  // canceled, while 'write' ops are allowed to complete. Therefore only
  // 'read' futures should be attached to this cancel handle.
  cancel_handle: CancelHandle,
 }
 impl<R, W> FullDuplexResource<R, W>
 where
  R: AsyncRead + Unpin + 'static,
  W: AsyncWrite + Unpin + 'static,
 {
  pub fn new((rd, wr): (R, W)) -> Self {
    Self {
      rd: rd.into(),
      wr: wr.into(),
      cancel_handle: Default::default(),
    }
  }
  pub fn into_inner(self) -> (R, W) {
    (self.rd.into_inner(), self.wr.into_inner())
  }
  pub fn rd_borrow_mut(self: &Rc<Self>) -> AsyncMutFuture<R> {
    RcRef::map(self, |r| &r.rd).borrow_mut()
  }
  pub fn wr_borrow_mut(self: &Rc<Self>) -> AsyncMutFuture<W> {
    RcRef::map(self, |r| &r.wr).borrow_mut()
  }
  pub fn cancel_handle(self: &Rc<Self>) -> RcRef<CancelHandle> {
    RcRef::map(self, |r| &r.cancel_handle)
  }
  pub fn cancel_read_ops(&self) {
    self.cancel_handle.cancel()
  }
  pub async fn read(
    self: &Rc<Self>,
    buf: &mut [u8],
  ) -> Result<usize, AnyError> {
    let mut rd = self.rd_borrow_mut().await;
    let nread = rd.read(buf).try_or_cancel(self.cancel_handle()).await?;
    Ok(nread)
  }
  pub async fn write(self: &Rc<Self>, buf: &[u8]) -> Result<usize, AnyError> {
    let mut wr = self.wr_borrow_mut().await;
    let nwritten = wr.write(buf).await?;
    Ok(nwritten)
  }
  pub async fn shutdown(self: &Rc<Self>) -> Result<(), AnyError> {
    let mut wr = self.wr_borrow_mut().await;
    wr.shutdown().await?;
    Ok(())
  }
 }
 pub type TcpStreamResource =
  FullDuplexResource<tcp::OwnedReadHalf, tcp::OwnedWriteHalf>;
 impl Resource for TcpStreamResource {
  fn name(&self) -> Cow<str> {
    "tcpStream".into()
  }
  fn close(self: Rc<Self>) {
    self.cancel_read_ops();
  }
 }
 pub type TlsStreamResource = FullDuplexResource<tls::ReadHalf, tls::WriteHalf>;
 impl Resource for TlsStreamResource {
  fn name(&self) -> Cow<str> {
    "tlsStream".into()
  }
  fn close(self: Rc<Self>) {
    self.cancel_read_ops();
  }
 }
 #[cfg(unix)]
 pub type UnixStreamResource =
  FullDuplexResource<unix::OwnedReadHalf, unix::OwnedWriteHalf>;
 #[cfg(not(unix))]
 pub struct UnixStreamResource;
 #[cfg(not(unix))]
 impl UnixStreamResource {
  pub async fn read(
    self: &Rc<Self>,
    _buf: &mut [u8],
  ) -> Result<usize, AnyError> {
    unreachable!()
  }
  pub async fn write(self: &Rc<Self>, _buf: &[u8]) -> Result<usize, AnyError> {
    unreachable!()
  }
  pub async fn shutdown(self: &Rc<Self>) -> Result<(), AnyError> {
    unreachable!()
  }
  pub fn cancel_read_ops(&self) {
    unreachable!()
  }
 }
 impl Resource for UnixStreamResource {
  fn name(&self) -> Cow<str> {
    "unixStream".into()
  }
  fn close(self: Rc<Self>) {
    self.cancel_read_ops();
  }
 }
 async fn op_read_async(
  state: Rc<RefCell<OpState>>,
  rid: ResourceId,
  buf: Option<ZeroCopyBuf>,
 ) -> Result<u32, AnyError> {
  let buf = &mut buf.ok_or_else(null_opbuf)?;
  let resource = state
    .borrow()
    .resource_table
    .get_any(rid)
    .ok_or_else(bad_resource_id)?;
  let nread = if let Some(s) = resource.downcast_rc::<TcpStreamResource>() {
    s.read(buf).await?
  } else if let Some(s) = resource.downcast_rc::<TlsStreamResource>() {
    s.read(buf).await?
  } else if let Some(s) = resource.downcast_rc::<UnixStreamResource>() {
    s.read(buf).await?
  } else {
    return Err(not_supported());
  };
  Ok(nread as u32)
 }
 async fn op_write_async(
  state: Rc<RefCell<OpState>>,
  rid: ResourceId,
  buf: Option<ZeroCopyBuf>,
 ) -> Result<u32, AnyError> {
  let buf = &buf.ok_or_else(null_opbuf)?;
  let resource = state
    .borrow()
    .resource_table
    .get_any(rid)
    .ok_or_else(bad_resource_id)?;
  let nwritten = if let Some(s) = resource.downcast_rc::<TcpStreamResource>() {
    s.write(buf).await?
  } else if let Some(s) = resource.downcast_rc::<TlsStreamResource>() {
    s.write(buf).await?
  } else if let Some(s) = resource.downcast_rc::<UnixStreamResource>() {
    s.write(buf).await?
  } else {
    return Err(not_supported());
  };
  Ok(nwritten as u32)
 }
 async fn op_shutdown(
  state: Rc<RefCell<OpState>>,
  rid: ResourceId,
  _: (),
 ) -> Result<(), AnyError> {
  let resource = state
    .borrow()
    .resource_table
    .get_any(rid)
    .ok_or_else(bad_resource_id)?;
  if let Some(s) = resource.downcast_rc::<TcpStreamResource>() {
    s.shutdown().await?;
  } else if let Some(s) = resource.downcast_rc::<TlsStreamResource>() {
    s.shutdown().await?;
  } else if let Some(s) = resource.downcast_rc::<UnixStreamResource>() {
    s.shutdown().await?;
  } else {
    return Err(not_supported());
  }
  Ok(())
 }
--- a/extensions/net/lib.deno_net.d.ts
+++ b/extensions/net/lib.deno_net.d.ts
@ -0,0 +1,149 @@
 // Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
 /// <reference no-default-lib="true" />
 /// <reference lib="esnext" />
 declare namespace Deno {
  export interface NetAddr {
    transport: "tcp" | "udp";
    hostname: string;
    port: number;
  }
  export interface UnixAddr {
    transport: "unix" | "unixpacket";
    path: string;
  }
  export type Addr = NetAddr | UnixAddr;
  /** A generic network listener for stream-oriented protocols. */
  export interface Listener extends AsyncIterable<Conn> {
    /** Waits for and resolves to the next connection to the `Listener`. */
    accept(): Promise<Conn>;
    /** Close closes the listener. Any pending accept promises will be rejected
   * with errors. */
    close(): void;
    /** Return the address of the `Listener`. */
    readonly addr: Addr;
    /** Return the rid of the `Listener`. */
    readonly rid: number;
    [Symbol.asyncIterator](): AsyncIterableIterator<Conn>;
  }
  export interface Conn extends Reader, Writer, Closer {
    /** The local address of the connection. */
    readonly localAddr: Addr;
    /** The remote address of the connection. */
    readonly remoteAddr: Addr;
    /** The resource ID of the connection. */
    readonly rid: number;
    /** Shuts down (`shutdown(2)`) the write side of the connection. Most
   * callers should just use `close()`. */
    closeWrite(): Promise<void>;
  }
  export interface ListenOptions {
    /** The port to listen on. */
    port: number;
    /** A literal IP address or host name that can be resolved to an IP address.
   * If not specified, defaults to `0.0.0.0`. */
    hostname?: string;
  }
  /** Listen announces on the local transport address.
 *
 * ```ts
 * const listener1 = Deno.listen({ port: 80 })
 * const listener2 = Deno.listen({ hostname: "192.0.2.1", port: 80 })
 * const listener3 = Deno.listen({ hostname: "[2001:db8::1]", port: 80 });
 * const listener4 = Deno.listen({ hostname: "golang.org", port: 80, transport: "tcp" });
 * ```
 *
 * Requires `allow-net` permission. */
  export function listen(
    options: ListenOptions & { transport?: "tcp" },
  ): Listener;
  export interface ListenTlsOptions extends ListenOptions {
    /** Server certificate file. */
    certFile: string;
    /** Server public key file. */
    keyFile: string;
    transport?: "tcp";
  }
  /** Listen announces on the local transport address over TLS (transport layer
 * security).
 *
 * ```ts
 * const lstnr = Deno.listenTls({ port: 443, certFile: "./server.crt", keyFile: "./server.key" });
 * ```
 *
 * Requires `allow-net` permission. */
  export function listenTls(options: ListenTlsOptions): Listener;
  export interface ConnectOptions {
    /** The port to connect to. */
    port: number;
    /** A literal IP address or host name that can be resolved to an IP address.
   * If not specified, defaults to `127.0.0.1`. */
    hostname?: string;
    transport?: "tcp";
  }
  /**
 * Connects to the hostname (default is "127.0.0.1") and port on the named
 * transport (default is "tcp"), and resolves to the connection (`Conn`).
 *
 * ```ts
 * const conn1 = await Deno.connect({ port: 80 });
 * const conn2 = await Deno.connect({ hostname: "192.0.2.1", port: 80 });
 * const conn3 = await Deno.connect({ hostname: "[2001:db8::1]", port: 80 });
 * const conn4 = await Deno.connect({ hostname: "golang.org", port: 80, transport: "tcp" });
 * ```
 *
 * Requires `allow-net` permission for "tcp". */
  export function connect(options: ConnectOptions): Promise<Conn>;
  export interface ConnectTlsOptions {
    /** The port to connect to. */
    port: number;
    /** A literal IP address or host name that can be resolved to an IP address.
   * If not specified, defaults to `127.0.0.1`. */
    hostname?: string;
    /** Server certificate file. */
    certFile?: string;
  }
  /** Establishes a secure connection over TLS (transport layer security) using
 * an optional cert file, hostname (default is "127.0.0.1") and port.  The
 * cert file is optional and if not included Mozilla's root certificates will
 * be used (see also https://github.com/ctz/webpki-roots for specifics)
 *
 * ```ts
 * const conn1 = await Deno.connectTls({ port: 80 });
 * const conn2 = await Deno.connectTls({ certFile: "./certs/my_custom_root_CA.pem", hostname: "192.0.2.1", port: 80 });
 * const conn3 = await Deno.connectTls({ hostname: "[2001:db8::1]", port: 80 });
 * const conn4 = await Deno.connectTls({ certFile: "./certs/my_custom_root_CA.pem", hostname: "golang.org", port: 80});
 * ```
 *
 * Requires `allow-net` permission.
 */
  export function connectTls(options: ConnectTlsOptions): Promise<Conn>;
  /** Shutdown socket send operations.
 *
 * Matches behavior of POSIX shutdown(3).
 *
 * ```ts
 * const listener = Deno.listen({ port: 80 });
 * const conn = await listener.accept();
 * Deno.shutdown(conn.rid);
 * ```
 */
  export function shutdown(rid: number): Promise<void>;
 }
--- a/extensions/net/lib.deno_net.unstable.d.ts
+++ b/extensions/net/lib.deno_net.unstable.d.ts
@ -0,0 +1,262 @@
 // Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
 /// <reference no-default-lib="true" />
 /// <reference lib="esnext" />
 declare namespace Deno {
  /** The type of the resource record.
   * Only the listed types are supported currently. */
  export type RecordType =
    | "A"
    | "AAAA"
    | "ANAME"
    | "CNAME"
    | "MX"
    | "PTR"
    | "SRV"
    | "TXT";
  export interface ResolveDnsOptions {
    /** The name server to be used for lookups.
  * If not specified, defaults to the system configuration e.g. `/etc/resolv.conf` on Unix. */
    nameServer?: {
      /** The IP address of the name server */
      ipAddr: string;
      /** The port number the query will be sent to.
    * If not specified, defaults to 53. */
      port?: number;
    };
  }
  /** If `resolveDns` is called with "MX" record type specified, it will return an array of this interface. */
  export interface MXRecord {
    preference: number;
    exchange: string;
  }
  /** If `resolveDns` is called with "SRV" record type specified, it will return an array of this interface. */
  export interface SRVRecord {
    priority: number;
    weight: number;
    port: number;
    target: string;
  }
  export function resolveDns(
    query: string,
    recordType: "A" | "AAAA" | "ANAME" | "CNAME" | "PTR",
    options?: ResolveDnsOptions,
  ): Promise<string[]>;
  export function resolveDns(
    query: string,
    recordType: "MX",
    options?: ResolveDnsOptions,
  ): Promise<MXRecord[]>;
  export function resolveDns(
    query: string,
    recordType: "SRV",
    options?: ResolveDnsOptions,
  ): Promise<SRVRecord[]>;
  export function resolveDns(
    query: string,
    recordType: "TXT",
    options?: ResolveDnsOptions,
  ): Promise<string[][]>;
  /** ** UNSTABLE**: new API, yet to be vetted.
 *
 * Performs DNS resolution against the given query, returning resolved records.
 * Fails in the cases such as:
 * - the query is in invalid format
 * - the options have an invalid parameter, e.g. `nameServer.port` is beyond the range of 16-bit unsigned integer
 * - timed out
 *
 * ```ts
 * const a = await Deno.resolveDns("example.com", "A");
 *
 * const aaaa = await Deno.resolveDns("example.com", "AAAA", {
 *   nameServer: { ipAddr: "8.8.8.8", port: 1234 },
 * });
 * ```
 *
 * Requires `allow-net` permission.
  */
  export function resolveDns(
    query: string,
    recordType: RecordType,
    options?: ResolveDnsOptions,
  ): Promise<string[] | MXRecord[] | SRVRecord[] | string[][]>;
  /** **UNSTABLE**: new API, yet to be vetted.
 *
 * A generic transport listener for message-oriented protocols. */
  export interface DatagramConn extends AsyncIterable<[Uint8Array, Addr]> {
    /** **UNSTABLE**: new API, yet to be vetted.
  *
  * Waits for and resolves to the next message to the `UDPConn`. */
    receive(p?: Uint8Array): Promise<[Uint8Array, Addr]>;
    /** UNSTABLE: new API, yet to be vetted.
  *
  * Sends a message to the target. */
    send(p: Uint8Array, addr: Addr): Promise<number>;
    /** UNSTABLE: new API, yet to be vetted.
  *
  * Close closes the socket. Any pending message promises will be rejected
  * with errors. */
    close(): void;
    /** Return the address of the `UDPConn`. */
    readonly addr: Addr;
    [Symbol.asyncIterator](): AsyncIterableIterator<[Uint8Array, Addr]>;
  }
  export interface UnixListenOptions {
    /** A Path to the Unix Socket. */
    path: string;
  }
  /** **UNSTABLE**: new API, yet to be vetted.
 *
 * Listen announces on the local transport address.
 *
 * ```ts
 * const listener = Deno.listen({ path: "/foo/bar.sock", transport: "unix" })
 * ```
 *
 * Requires `allow-read` and `allow-write` permission. */
  export function listen(
    options: UnixListenOptions & { transport: "unix" },
  ): Listener;
  /** **UNSTABLE**: new API, yet to be vetted
 *
 * Listen announces on the local transport address.
 *
 * ```ts
 * const listener1 = Deno.listenDatagram({
 *   port: 80,
 *   transport: "udp"
 * });
 * const listener2 = Deno.listenDatagram({
 *   hostname: "golang.org",
 *   port: 80,
 *   transport: "udp"
 * });
 * ```
 *
 * Requires `allow-net` permission. */
  export function listenDatagram(
    options: ListenOptions & { transport: "udp" },
  ): DatagramConn;
  /** **UNSTABLE**: new API, yet to be vetted
 *
 * Listen announces on the local transport address.
 *
 * ```ts
 * const listener = Deno.listenDatagram({
 *   path: "/foo/bar.sock",
 *   transport: "unixpacket"
 * });
 * ```
 *
 * Requires `allow-read` and `allow-write` permission. */
  export function listenDatagram(
    options: UnixListenOptions & { transport: "unixpacket" },
  ): DatagramConn;
  export interface UnixConnectOptions {
    transport: "unix";
    path: string;
  }
  /** **UNSTABLE**:  The unix socket transport is unstable as a new API yet to
 * be vetted.  The TCP transport is considered stable.
 *
 * Connects to the hostname (default is "127.0.0.1") and port on the named
 * transport (default is "tcp"), and resolves to the connection (`Conn`).
 *
 * ```ts
 * const conn1 = await Deno.connect({ port: 80 });
 * const conn2 = await Deno.connect({ hostname: "192.0.2.1", port: 80 });
 * const conn3 = await Deno.connect({ hostname: "[2001:db8::1]", port: 80 });
 * const conn4 = await Deno.connect({ hostname: "golang.org", port: 80, transport: "tcp" });
 * const conn5 = await Deno.connect({ path: "/foo/bar.sock", transport: "unix" });
 * ```
 *
 * Requires `allow-net` permission for "tcp" and `allow-read` for "unix". */
  export function connect(
    options: ConnectOptions | UnixConnectOptions,
  ): Promise<Conn>;
  export interface StartTlsOptions {
    /** A literal IP address or host name that can be resolved to an IP address.
  * If not specified, defaults to `127.0.0.1`. */
    hostname?: string;
    /** Server certificate file. */
    certFile?: string;
  }
  /** **UNSTABLE**: new API, yet to be vetted.
 *
 * Start TLS handshake from an existing connection using
 * an optional cert file, hostname (default is "127.0.0.1").  The
 * cert file is optional and if not included Mozilla's root certificates will
 * be used (see also https://github.com/ctz/webpki-roots for specifics)
 * Using this function requires that the other end of the connection is
 * prepared for TLS handshake.
 *
 * ```ts
 * const conn = await Deno.connect({ port: 80, hostname: "127.0.0.1" });
 * const tlsConn = await Deno.startTls(conn, { certFile: "./certs/my_custom_root_CA.pem", hostname: "localhost" });
 * ```
 *
 * Requires `allow-net` permission.
  */
  export function startTls(
    conn: Conn,
    options?: StartTlsOptions,
  ): Promise<Conn>;
  export interface ListenTlsOptions {
    /** **UNSTABLE**: new API, yet to be vetted.
  *
  * Application-Layer Protocol Negotiation (ALPN) protocols to announce to
  * the client. If not specified, no ALPN extension will be included in the
  * TLS handshake.
  */
    alpnProtocols?: string[];
  }
  export interface RequestEvent {
    readonly request: Request;
    respondWith(r: Response | Promise<Response>): Promise<void>;
  }
  export interface HttpConn extends AsyncIterable<RequestEvent> {
    readonly rid: number;
    nextRequest(): Promise<RequestEvent | null>;
    close(): void;
  }
  /** **UNSTABLE**: new API, yet to be vetted.
   *
   * Services HTTP requests given a TCP or TLS socket.
   *
   * ```ts
   * const conn = await Deno.connect({ port: 80, hostname: "127.0.0.1" });
   * const httpConn = Deno.serveHttp(conn);
   * const e = await httpConn.nextRequest();
   * if (e) {
   *   e.respondWith(new Response("Hello World"));
   * }
   * ```
   *
   * If `httpConn.nextRequest()` encounters an error or returns `null`
   * then the underlying HttpConn resource is closed automatically.
   */
  export function serveHttp(conn: Conn): HttpConn;
 }
--- a/extensions/net/lib.rs
+++ b/extensions/net/lib.rs
@ -0,0 +1,113 @@
 // Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
 pub mod io;
 pub mod ops;
 pub mod ops_http;
 pub mod ops_tls;
 #[cfg(unix)]
 pub mod ops_unix;
 pub mod resolve_addr;
 use deno_core::error::AnyError;
 use deno_core::include_js_files;
 use deno_core::Extension;
 use deno_core::OpState;
 use std::cell::RefCell;
 use std::path::Path;
 use std::path::PathBuf;
 use std::rc::Rc;
 pub trait NetPermissions {
  fn check_net<T: AsRef<str>>(
    &mut self,
    _host: &(T, Option<u16>),
  ) -> Result<(), AnyError>;
  fn check_read(&mut self, _p: &Path) -> Result<(), AnyError>;
  fn check_write(&mut self, _p: &Path) -> Result<(), AnyError>;
 }
 /// For use with this crate when the user does not want permission checks.
 pub struct NoNetPermissions;
 impl NetPermissions for NoNetPermissions {
  fn check_net<T: AsRef<str>>(
    &mut self,
    _host: &(T, Option<u16>),
  ) -> Result<(), AnyError> {
    Ok(())
  }
  fn check_read(&mut self, _p: &Path) -> Result<(), AnyError> {
    Ok(())
  }
  fn check_write(&mut self, _p: &Path) -> Result<(), AnyError> {
    Ok(())
  }
 }
 /// `UnstableChecker` is a struct so it can be placed inside `GothamState`;
 /// using type alias for a bool could work, but there's a high chance
 /// that there might be another type alias pointing to a bool, which
 /// would override previously used alias.
 pub struct UnstableChecker {
  pub unstable: bool,
 }
 impl UnstableChecker {
  /// Quits the process if the --unstable flag was not provided.
  ///
  /// This is intentionally a non-recoverable check so that people cannot probe
  /// for unstable APIs from stable programs.
  // NOTE(bartlomieju): keep in sync with `cli/program_state.rs`
  pub fn check_unstable(&self, api_name: &str) {
    if !self.unstable {
      eprintln!(
        "Unstable API '{}'. The --unstable flag must be provided.",
        api_name
      );
      std::process::exit(70);
    }
  }
 }
 /// Helper for checking unstable features. Used for sync ops.
 pub fn check_unstable(state: &OpState, api_name: &str) {
  state.borrow::<UnstableChecker>().check_unstable(api_name)
 }
 /// Helper for checking unstable features. Used for async ops.
 pub fn check_unstable2(state: &Rc<RefCell<OpState>>, api_name: &str) {
  let state = state.borrow();
  state.borrow::<UnstableChecker>().check_unstable(api_name)
 }
 pub fn get_declaration() -> PathBuf {
  PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("lib.deno_net.d.ts")
 }
 pub fn get_unstable_declaration() -> PathBuf {
  PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("lib.deno_net.unstable.d.ts")
 }
 pub fn init<P: NetPermissions + 'static>(unstable: bool) -> Extension {
  let mut ops_to_register = vec![];
  ops_to_register.extend(io::init());
  ops_to_register.extend(ops::init::<P>());
  ops_to_register.extend(ops_tls::init::<P>());
  ops_to_register.extend(ops_http::init());
  Extension::builder()
    .js(include_js_files!(
      prefix "deno:extensions/net",
      "01_net.js",
      "02_tls.js",
      "03_http.js",
      "04_net_unstable.js",
    ))
    .ops(ops_to_register)
    .state(move |state| {
      state.put(UnstableChecker { unstable });
      Ok(())
    })
    .build()
 }
--- a/extensions/net/ops.rs
+++ b/extensions/net/ops.rs
@ -1,8 +1,9 @@
 // Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
-use crate::ops::io::TcpStreamResource;
+
-use crate::permissions::Permissions;
+use crate::io::TcpStreamResource;
 use crate::resolve_addr::resolve_addr;
 use crate::resolve_addr::resolve_addr_sync;
 use crate::NetPermissions;
 use deno_core::error::bad_resource;
 use deno_core::error::custom_error;
 use deno_core::error::generic_error;
@ -14,7 +15,7 @@ use deno_core::op_sync;
 use deno_core::AsyncRefCell;
 use deno_core::CancelHandle;
 use deno_core::CancelTryFuture;
-use deno_core::Extension;
+use deno_core::OpPair;
 use deno_core::OpState;
 use deno_core::RcRef;
 use deno_core::Resource;
@ -39,23 +40,21 @@ use trust_dns_resolver::system_conf;
 use trust_dns_resolver::AsyncResolver;
 #[cfg(unix)]
-use super::net_unix;
+use super::ops_unix as net_unix;
 #[cfg(unix)]
-use crate::ops::io::UnixStreamResource;
+use crate::io::UnixStreamResource;
 #[cfg(unix)]
 use std::path::Path;
-pub fn init() -> Extension {
+pub fn init<P: NetPermissions + 'static>() -> Vec<OpPair> {
-  Extension::builder()
+  vec![
-    .ops(vec![
+    ("op_accept", op_async(op_accept)),
-      ("op_accept", op_async(op_accept)),
+    ("op_connect", op_async(op_connect::<P>)),
-      ("op_connect", op_async(op_connect)),
+    ("op_listen", op_sync(op_listen::<P>)),
-      ("op_listen", op_sync(op_listen)),
+    ("op_datagram_receive", op_async(op_datagram_receive)),
-      ("op_datagram_receive", op_async(op_datagram_receive)),
+    ("op_datagram_send", op_async(op_datagram_send::<P>)),
-      ("op_datagram_send", op_async(op_datagram_send)),
+    ("op_dns_resolve", op_async(op_dns_resolve::<P>)),
-      ("op_dns_resolve", op_async(op_dns_resolve)),
+  ]
    ])
    .build()
 }
 #[derive(Serialize)]
@ -216,11 +215,14 @@ struct SendArgs {
  transport_args: ArgsEnum,
 }
-async fn op_datagram_send(
+async fn op_datagram_send<NP>(
  state: Rc<RefCell<OpState>>,
  args: SendArgs,
  zero_copy: Option<ZeroCopyBuf>,
-) -> Result<usize, AnyError> {
+) -> Result<usize, AnyError>
 where
  NP: NetPermissions + 'static,
 {
  let zero_copy = zero_copy.ok_or_else(null_opbuf)?;
  let zero_copy = zero_copy.clone();
@ -232,9 +234,8 @@ async fn op_datagram_send(
    } if transport == "udp" => {
      {
        let mut s = state.borrow_mut();
-        s.borrow_mut::<Permissions>()
+        s.borrow_mut::<NP>()
-          .net
+          .check_net(&(&args.hostname, Some(args.port)))?;
          .check(&(&args.hostname, Some(args.port)))?;
      }
      let addr = resolve_addr(&args.hostname, args.port)
        .await?
@ -259,7 +260,7 @@ async fn op_datagram_send(
      let address_path = Path::new(&args.path);
      {
        let mut s = state.borrow_mut();
-        s.borrow_mut::<Permissions>().write.check(&address_path)?;
+        s.borrow_mut::<NP>().check_write(&address_path)?;
      }
      let resource = state
        .borrow()
@ -285,11 +286,14 @@ struct ConnectArgs {
  transport_args: ArgsEnum,
 }
-async fn op_connect(
+async fn op_connect<NP>(
  state: Rc<RefCell<OpState>>,
  args: ConnectArgs,
  _: (),
-) -> Result<OpConn, AnyError> {
+) -> Result<OpConn, AnyError>
 where
  NP: NetPermissions + 'static,
 {
  match args {
    ConnectArgs {
      transport,
@ -298,9 +302,8 @@ async fn op_connect(
      {
        let mut state_ = state.borrow_mut();
        state_
-          .borrow_mut::<Permissions>()
+          .borrow_mut::<NP>()
-          .net
+          .check_net(&(&args.hostname, Some(args.port)))?;
          .check(&(&args.hostname, Some(args.port)))?;
      }
      let addr = resolve_addr(&args.hostname, args.port)
        .await?
@ -335,14 +338,8 @@ async fn op_connect(
      super::check_unstable2(&state, "Deno.connect");
      {
        let mut state_ = state.borrow_mut();
-        state_
+        state_.borrow_mut::<NP>().check_read(&address_path)?;
-          .borrow_mut::<Permissions>()
+        state_.borrow_mut::<NP>().check_write(&address_path)?;
          .read
          .check(&address_path)?;
        state_
          .borrow_mut::<Permissions>()
          .write
          .check(&address_path)?;
      }
      let path = args.path;
      let unix_stream = net_unix::UnixStream::connect(Path::new(&path)).await?;
@ -451,11 +448,14 @@ fn listen_udp(
  Ok((rid, local_addr))
 }
-fn op_listen(
+fn op_listen<NP>(
  state: &mut OpState,
  args: ListenArgs,
  _: (),
-) -> Result<OpConn, AnyError> {
+) -> Result<OpConn, AnyError>
 where
  NP: NetPermissions + 'static,
 {
  match args {
    ListenArgs {
      transport,
@ -466,9 +466,8 @@ fn op_listen(
          super::check_unstable(state, "Deno.listenDatagram");
        }
        state
-          .borrow_mut::<Permissions>()
+          .borrow_mut::<NP>()
-          .net
+          .check_net(&(&args.hostname, Some(args.port)))?;
          .check(&(&args.hostname, Some(args.port)))?;
      }
      let addr = resolve_addr_sync(&args.hostname, args.port)?
        .next()
@ -512,9 +511,9 @@ fn op_listen(
        if transport == "unixpacket" {
          super::check_unstable(state, "Deno.listenDatagram");
        }
-        let permissions = state.borrow_mut::<Permissions>();
+        let permissions = state.borrow_mut::<NP>();
-        permissions.read.check(&address_path)?;
+        permissions.check_read(&address_path)?;
-        permissions.write.check(&address_path)?;
+        permissions.check_write(&address_path)?;
      }
      let (rid, local_addr) = if transport == "unix" {
        net_unix::listen_unix(state, &address_path)?
@ -592,11 +591,14 @@ pub struct NameServer {
  port: u16,
 }
-async fn op_dns_resolve(
+async fn op_dns_resolve<NP>(
  state: Rc<RefCell<OpState>>,
  args: ResolveAddrArgs,
  _: (),
-) -> Result<Vec<DnsReturnRecord>, AnyError> {
+) -> Result<Vec<DnsReturnRecord>, AnyError>
 where
  NP: NetPermissions + 'static,
 {
  let ResolveAddrArgs {
    query,
    record_type,
@ -621,14 +623,14 @@ async fn op_dns_resolve(
  {
    let mut s = state.borrow_mut();
-    let perm = s.borrow_mut::<Permissions>();
+    let perm = s.borrow_mut::<NP>();
    // Checks permission against the name servers which will be actually queried.
    for ns in config.name_servers() {
      let socker_addr = &ns.socket_addr;
      let ip = socker_addr.ip().to_string();
      let port = socker_addr.port();
-      perm.net.check(&(ip, Some(port)))?;
+      perm.check_net(&(ip, Some(port)))?;
    }
  }
--- a/extensions/net/ops_http.rs
+++ b/extensions/net/ops_http.rs
@ -1,8 +1,8 @@
 // Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
-use crate::ops::io::TcpStreamResource;
+use crate::io::TcpStreamResource;
-use crate::ops::io::TlsStreamResource;
+use crate::io::TlsStreamResource;
-use crate::ops::tls::TlsStream;
+use crate::ops_tls::TlsStream;
 use deno_core::error::bad_resource_id;
 use deno_core::error::null_opbuf;
 use deno_core::error::type_error;
@ -17,7 +17,7 @@ use deno_core::AsyncRefCell;
 use deno_core::ByteString;
 use deno_core::CancelHandle;
 use deno_core::CancelTryFuture;
-use deno_core::Extension;
+use deno_core::OpPair;
 use deno_core::OpState;
 use deno_core::RcRef;
 use deno_core::Resource;
@ -46,17 +46,15 @@ use tokio::net::TcpStream;
 use tokio::sync::oneshot;
 use tokio_util::io::StreamReader;
-pub fn init() -> Extension {
+pub fn init() -> Vec<OpPair> {
-  Extension::builder()
+  vec![
-    .ops(vec![
+    ("op_http_start", op_sync(op_http_start)),
-      ("op_http_start", op_sync(op_http_start)),
+    ("op_http_request_next", op_async(op_http_request_next)),
-      ("op_http_request_next", op_async(op_http_request_next)),
+    ("op_http_request_read", op_async(op_http_request_read)),
-      ("op_http_request_read", op_async(op_http_request_read)),
+    ("op_http_response", op_async(op_http_response)),
-      ("op_http_response", op_async(op_http_response)),
+    ("op_http_response_write", op_async(op_http_response_write)),
-      ("op_http_response_write", op_async(op_http_response_write)),
+    ("op_http_response_close", op_async(op_http_response_close)),
-      ("op_http_response_close", op_async(op_http_response_close)),
+  ]
    ])
    .build()
 }
 struct ServiceInner {
--- a/extensions/net/ops_tls.rs
+++ b/extensions/net/ops_tls.rs
@ -3,14 +3,14 @@
 pub use rustls;
 pub use webpki;
-use crate::ops::io::TcpStreamResource;
+use crate::io::TcpStreamResource;
-use crate::ops::io::TlsStreamResource;
+use crate::io::TlsStreamResource;
-use crate::ops::net::IpAddr;
+use crate::ops::IpAddr;
-use crate::ops::net::OpAddr;
+use crate::ops::OpAddr;
-use crate::ops::net::OpConn;
+use crate::ops::OpConn;
 use crate::permissions::Permissions;
 use crate::resolve_addr::resolve_addr;
 use crate::resolve_addr::resolve_addr_sync;
 use crate::NetPermissions;
 use deno_core::error::bad_resource;
 use deno_core::error::bad_resource_id;
 use deno_core::error::custom_error;
@ -31,7 +31,7 @@ use deno_core::op_sync;
 use deno_core::AsyncRefCell;
 use deno_core::CancelHandle;
 use deno_core::CancelTryFuture;
-use deno_core::Extension;
+use deno_core::OpPair;
 use deno_core::OpState;
 use deno_core::RcRef;
 use deno_core::Resource;
@ -662,15 +662,13 @@ impl Write for ImplementWriteTrait<'_, TcpStream> {
  }
 }
-pub fn init() -> Extension {
+pub fn init<P: NetPermissions + 'static>() -> Vec<OpPair> {
-  Extension::builder()
+  vec![
-    .ops(vec![
+    ("op_start_tls", op_async(op_start_tls::<P>)),
-      ("op_start_tls", op_async(op_start_tls)),
+    ("op_connect_tls", op_async(op_connect_tls::<P>)),
-      ("op_connect_tls", op_async(op_connect_tls)),
+    ("op_listen_tls", op_sync(op_listen_tls::<P>)),
-      ("op_listen_tls", op_sync(op_listen_tls)),
+    ("op_accept_tls", op_async(op_accept_tls)),
-      ("op_accept_tls", op_async(op_accept_tls)),
+  ]
    ])
    .build()
 }
 #[derive(Deserialize)]
@ -690,11 +688,14 @@ struct StartTlsArgs {
  hostname: String,
 }
-async fn op_start_tls(
+async fn op_start_tls<NP>(
  state: Rc<RefCell<OpState>>,
  args: StartTlsArgs,
  _: (),
-) -> Result<OpConn, AnyError> {
+) -> Result<OpConn, AnyError>
 where
  NP: NetPermissions + 'static,
 {
  let rid = args.rid;
  let hostname = match &*args.hostname {
    "" => "localhost",
@ -705,10 +706,10 @@ async fn op_start_tls(
  {
    super::check_unstable2(&state, "Deno.startTls");
    let mut s = state.borrow_mut();
-    let permissions = s.borrow_mut::<Permissions>();
+    let permissions = s.borrow_mut::<NP>();
-    permissions.net.check(&(hostname, Some(0)))?;
+    permissions.check_net(&(hostname, Some(0)))?;
    if let Some(path) = cert_file {
-      permissions.read.check(Path::new(path))?;
+      permissions.check_read(Path::new(path))?;
    }
  }
@ -763,11 +764,14 @@ async fn op_start_tls(
  })
 }
-async fn op_connect_tls(
+async fn op_connect_tls<NP>(
  state: Rc<RefCell<OpState>>,
  args: ConnectTlsArgs,
  _: (),
-) -> Result<OpConn, AnyError> {
+) -> Result<OpConn, AnyError>
 where
  NP: NetPermissions + 'static,
 {
  assert_eq!(args.transport, "tcp");
  let hostname = match &*args.hostname {
    "" => "localhost",
@ -778,10 +782,10 @@ async fn op_connect_tls(
  {
    let mut s = state.borrow_mut();
-    let permissions = s.borrow_mut::<Permissions>();
+    let permissions = s.borrow_mut::<NP>();
-    permissions.net.check(&(hostname, Some(port)))?;
+    permissions.check_net(&(hostname, Some(port)))?;
    if let Some(path) = cert_file {
-      permissions.read.check(Path::new(path))?;
+      permissions.check_read(Path::new(path))?;
    }
  }
@ -912,11 +916,14 @@ pub struct ListenTlsArgs {
  alpn_protocols: Option<Vec<String>>,
 }
-fn op_listen_tls(
+fn op_listen_tls<NP>(
  state: &mut OpState,
  args: ListenTlsArgs,
  _: (),
-) -> Result<OpConn, AnyError> {
+) -> Result<OpConn, AnyError>
 where
  NP: NetPermissions + 'static,
 {
  assert_eq!(args.transport, "tcp");
  let hostname = &*args.hostname;
  let port = args.port;
@ -924,10 +931,10 @@ fn op_listen_tls(
  let key_file = &*args.key_file;
  {
-    let permissions = state.borrow_mut::<Permissions>();
+    let permissions = state.borrow_mut::<NP>();
-    permissions.net.check(&(hostname, Some(port)))?;
+    permissions.check_net(&(hostname, Some(port)))?;
-    permissions.read.check(Path::new(cert_file))?;
+    permissions.check_read(Path::new(cert_file))?;
-    permissions.read.check(Path::new(key_file))?;
+    permissions.check_read(Path::new(key_file))?;
  }
  let mut tls_config = ServerConfig::new(NoClientAuth::new());
--- a/extensions/net/ops_unix.rs
+++ b/extensions/net/ops_unix.rs
@ -1,12 +1,11 @@
 // Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
-use super::utils::into_string;
+use crate::io::UnixStreamResource;
-use crate::ops::io::UnixStreamResource;
+use crate::ops::AcceptArgs;
-use crate::ops::net::AcceptArgs;
+use crate::ops::OpAddr;
-use crate::ops::net::OpAddr;
+use crate::ops::OpConn;
-use crate::ops::net::OpConn;
+use crate::ops::OpPacket;
-use crate::ops::net::OpPacket;
+use crate::ops::ReceiveArgs;
 use crate::ops::net::ReceiveArgs;
 use deno_core::error::bad_resource;
 use deno_core::error::custom_error;
 use deno_core::error::null_opbuf;
@ -29,6 +28,14 @@ use tokio::net::UnixDatagram;
 use tokio::net::UnixListener;
 pub use tokio::net::UnixStream;
 /// A utility function to map OsStrings to Strings
 pub fn into_string(s: std::ffi::OsString) -> Result<String, AnyError> {
  s.into_string().map_err(|s| {
    let message = format!("File name or path {:?} is not valid UTF-8", s);
    custom_error("InvalidData", message)
  })
 }
 struct UnixListenerResource {
  listener: AsyncRefCell<UnixListener>,
  cancel: CancelHandle,
--- a/extensions/net/resolve_addr.rs
+++ b/extensions/net/resolve_addr.rs
--- a/runtime/Cargo.toml
+++ b/runtime/Cargo.toml
@ -23,6 +23,7 @@ deno_console = { version = "0.10.0", path = "../extensions/console" }
 deno_core = { version = "0.92.0", path = "../core" }
 deno_crypto = { version = "0.24.0", path = "../extensions/crypto" }
 deno_fetch = { version = "0.32.0", path = "../extensions/fetch" }
 deno_net = { version = "0.1.0", path = "../extensions/net" }
 deno_timers = { version = "0.8.0", path = "../extensions/timers" }
 deno_url = { version = "0.10.0", path = "../extensions/url" }
 deno_web = { version = "0.41.0", path = "../extensions/web" }
@ -41,6 +42,7 @@ deno_console = { version = "0.10.0", path = "../extensions/console" }
 deno_core = { version = "0.92.0", path = "../core" }
 deno_crypto = { version = "0.24.0", path = "../extensions/crypto" }
 deno_fetch = { version = "0.32.0", path = "../extensions/fetch" }
 deno_net = { version = "0.1.0", path = "../extensions/net" }
 deno_timers = { version = "0.8.0", path = "../extensions/timers" }
 deno_url = { version = "0.10.0", path = "../extensions/url" }
 deno_web = { version = "0.41.0", path = "../extensions/web" }
@ -50,7 +52,6 @@ deno_websocket = { version = "0.15.0", path = "../extensions/websocket" }
 deno_webstorage = { version = "0.5.0", path = "../extensions/webstorage" }
 atty = "0.2.14"
 bytes = "1"
 dlopen = "0.1.8"
 encoding_rs = "0.8.28"
 filetime = "0.2.14"
@ -64,17 +65,11 @@ notify = "5.0.0-pre.7"
 percent-encoding = "2.1.0"
 regex = "1.4.3"
 ring = "0.16.20"
 rustls = "0.19.0"
 serde = { version = "1.0.125", features = ["derive"] }
 sys-info = "0.9.0"
 termcolor = "1.1.2"
 tokio = { version = "1.7.1", features = ["full"] }
 tokio-util = { version = "0.6", features = ["io"] }
 uuid = { version = "0.8.2", features = ["v4"] }
 webpki = "0.21.4"
 webpki-roots = "0.21.1"
 trust-dns-proto = "0.20.3"
 trust-dns-resolver = { version = "0.20.3", features = ["tokio-runtime", "serde-config"] }
 [target.'cfg(windows)'.dependencies]
 fwdansi = "1.1.0"
--- a/runtime/build.rs
+++ b/runtime/build.rs
@ -59,6 +59,7 @@ fn create_runtime_snapshot(snapshot_path: &Path, files: Vec<PathBuf>) {
      deno_broadcast_channel::InMemoryBroadcastChannel::default(),
      false, // No --unstable.
    ),
    deno_net::init::<deno_net::NoNetPermissions>(false), // No --unstable.
  ];
  let js_runtime = JsRuntime::new(RuntimeOptions {
--- a/runtime/js/01_errors.js
+++ b/runtime/js/01_errors.js
@ -2,6 +2,9 @@
 "use strict";
 ((window) => {
  const core = window.Deno.core;
  const { BadResource, Interrupted } = core;
  class NotFound extends Error {
    constructor(msg) {
      super(msg);
@ -86,13 +89,6 @@
    }
  }
  class Interrupted extends Error {
    constructor(msg) {
      super(msg);
      this.name = "Interrupted";
    }
  }
  class WriteZero extends Error {
    constructor(msg) {
      super(msg);
@ -107,13 +103,6 @@
    }
  }
  class BadResource extends Error {
    constructor(msg) {
      super(msg);
      this.name = "BadResource";
    }
  }
  class Http extends Error {
    constructor(msg) {
      super(msg);
--- a/runtime/lib.rs
+++ b/runtime/lib.rs
@ -4,6 +4,7 @@ pub use deno_broadcast_channel;
 pub use deno_console;
 pub use deno_crypto;
 pub use deno_fetch;
 pub use deno_net;
 pub use deno_timers;
 pub use deno_url;
 pub use deno_web;
@ -20,7 +21,6 @@ pub mod js;
 pub mod metrics;
 pub mod ops;
 pub mod permissions;
 pub mod resolve_addr;
 pub mod tokio_util;
 pub mod web_worker;
 pub mod worker;
--- a/runtime/ops/io.rs
+++ b/runtime/ops/io.rs
@ -1,6 +1,5 @@
 // Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
 use crate::ops::tls;
 use deno_core::error::null_opbuf;
 use deno_core::error::resource_unavailable;
 use deno_core::error::AnyError;
@ -17,6 +16,9 @@ use deno_core::RcRef;
 use deno_core::Resource;
 use deno_core::ResourceId;
 use deno_core::ZeroCopyBuf;
 use deno_net::io::TcpStreamResource;
 use deno_net::io::TlsStreamResource;
 use deno_net::io::UnixStreamResource;
 use std::borrow::Cow;
 use std::cell::RefCell;
 use std::io::Read;
@ -26,13 +28,10 @@ use tokio::io::AsyncRead;
 use tokio::io::AsyncReadExt;
 use tokio::io::AsyncWrite;
 use tokio::io::AsyncWriteExt;
 use tokio::net::tcp;
 use tokio::process;
 #[cfg(unix)]
 use std::os::unix::io::FromRawFd;
 #[cfg(unix)]
 use tokio::net::unix;
 #[cfg(windows)]
 use std::os::windows::io::FromRawHandle;
@ -238,70 +237,6 @@ where
  }
 }
 /// A full duplex resource has a read and write ends that are completely
 /// independent, like TCP/Unix sockets and TLS streams.
 #[derive(Debug)]
 pub struct FullDuplexResource<R, W> {
  rd: AsyncRefCell<R>,
  wr: AsyncRefCell<W>,
  // When a full-duplex resource is closed, all pending 'read' ops are
  // canceled, while 'write' ops are allowed to complete. Therefore only
  // 'read' futures should be attached to this cancel handle.
  cancel_handle: CancelHandle,
 }
 impl<R, W> FullDuplexResource<R, W>
 where
  R: AsyncRead + Unpin + 'static,
  W: AsyncWrite + Unpin + 'static,
 {
  pub fn new((rd, wr): (R, W)) -> Self {
    Self {
      rd: rd.into(),
      wr: wr.into(),
      cancel_handle: Default::default(),
    }
  }
  pub fn into_inner(self) -> (R, W) {
    (self.rd.into_inner(), self.wr.into_inner())
  }
  pub fn rd_borrow_mut(self: &Rc<Self>) -> AsyncMutFuture<R> {
    RcRef::map(self, |r| &r.rd).borrow_mut()
  }
  pub fn wr_borrow_mut(self: &Rc<Self>) -> AsyncMutFuture<W> {
    RcRef::map(self, |r| &r.wr).borrow_mut()
  }
  pub fn cancel_handle(self: &Rc<Self>) -> RcRef<CancelHandle> {
    RcRef::map(self, |r| &r.cancel_handle)
  }
  pub fn cancel_read_ops(&self) {
    self.cancel_handle.cancel()
  }
  async fn read(self: &Rc<Self>, buf: &mut [u8]) -> Result<usize, AnyError> {
    let mut rd = self.rd_borrow_mut().await;
    let nread = rd.read(buf).try_or_cancel(self.cancel_handle()).await?;
    Ok(nread)
  }
  async fn write(self: &Rc<Self>, buf: &[u8]) -> Result<usize, AnyError> {
    let mut wr = self.wr_borrow_mut().await;
    let nwritten = wr.write(buf).await?;
    Ok(nwritten)
  }
  async fn shutdown(self: &Rc<Self>) -> Result<(), AnyError> {
    let mut wr = self.wr_borrow_mut().await;
    wr.shutdown().await?;
    Ok(())
  }
 }
 pub type ChildStdinResource = WriteOnlyResource<process::ChildStdin>;
 impl Resource for ChildStdinResource {
@ -334,64 +269,6 @@ impl Resource for ChildStderrResource {
  }
 }
 pub type TcpStreamResource =
  FullDuplexResource<tcp::OwnedReadHalf, tcp::OwnedWriteHalf>;
 impl Resource for TcpStreamResource {
  fn name(&self) -> Cow<str> {
    "tcpStream".into()
  }
  fn close(self: Rc<Self>) {
    self.cancel_read_ops();
  }
 }
 pub type TlsStreamResource = FullDuplexResource<tls::ReadHalf, tls::WriteHalf>;
 impl Resource for TlsStreamResource {
  fn name(&self) -> Cow<str> {
    "tlsStream".into()
  }
  fn close(self: Rc<Self>) {
    self.cancel_read_ops();
  }
 }
 #[cfg(unix)]
 pub type UnixStreamResource =
  FullDuplexResource<unix::OwnedReadHalf, unix::OwnedWriteHalf>;
 #[cfg(not(unix))]
 struct UnixStreamResource;
 #[cfg(not(unix))]
 impl UnixStreamResource {
  async fn read(self: &Rc<Self>, _buf: &mut [u8]) -> Result<usize, AnyError> {
    unreachable!()
  }
  async fn write(self: &Rc<Self>, _buf: &[u8]) -> Result<usize, AnyError> {
    unreachable!()
  }
  async fn shutdown(self: &Rc<Self>) -> Result<(), AnyError> {
    unreachable!()
  }
  fn cancel_read_ops(&self) {
    unreachable!()
  }
 }
 impl Resource for UnixStreamResource {
  fn name(&self) -> Cow<str> {
    "unixStream".into()
  }
  fn close(self: Rc<Self>) {
    self.cancel_read_ops();
  }
 }
 #[derive(Debug, Default)]
 pub struct StdFileResource {
  pub fs_file:
--- a/runtime/ops/mod.rs
+++ b/runtime/ops/mod.rs
@ -2,18 +2,13 @@
 pub mod fs;
 pub mod fs_events;
 pub mod http;
 pub mod io;
 pub mod net;
 #[cfg(unix)]
 mod net_unix;
 pub mod os;
 pub mod permissions;
 pub mod plugin;
 pub mod process;
 pub mod runtime;
 pub mod signal;
 pub mod tls;
 pub mod tty;
 mod utils;
 pub mod web_worker;
--- a/runtime/permissions.rs
+++ b/runtime/permissions.rs
@ -962,6 +962,23 @@ impl Permissions {
  }
 }
 impl deno_net::NetPermissions for Permissions {
  fn check_net<T: AsRef<str>>(
    &mut self,
    host: &(T, Option<u16>),
  ) -> Result<(), AnyError> {
    self.net.check(host)
  }
  fn check_read(&mut self, path: &Path) -> Result<(), AnyError> {
    self.read.check(path)
  }
  fn check_write(&mut self, path: &Path) -> Result<(), AnyError> {
    self.write.check(path)
  }
 }
 impl deno_fetch::FetchPermissions for Permissions {
  fn check_net_url(&mut self, url: &url::Url) -> Result<(), AnyError> {
    self.net.check_url(url)
--- a/runtime/web_worker.rs
+++ b/runtime/web_worker.rs
@ -330,14 +330,12 @@ impl WebWorker {
      vec![
        ops::fs_events::init(),
        ops::fs::init(),
-        ops::net::init(),
+        deno_net::init::<Permissions>(options.unstable),
        ops::os::init(),
        ops::http::init(),
        ops::permissions::init(),
        ops::plugin::init(),
        ops::process::init(),
        ops::signal::init(),
        ops::tls::init(),
        ops::tty::init(),
        ops::io::init_stdio(),
      ]
--- a/runtime/worker.rs
+++ b/runtime/worker.rs
@ -120,16 +120,14 @@ impl MainWorker {
      ops::worker_host::init(options.create_web_worker_cb.clone()),
      ops::fs_events::init(),
      ops::fs::init(),
      ops::http::init(),
      ops::io::init(),
      ops::io::init_stdio(),
-      ops::net::init(),
+      deno_net::init::<Permissions>(options.unstable),
      ops::os::init(),
      ops::permissions::init(),
      ops::plugin::init(),
      ops::process::init(),
      ops::signal::init(),
      ops::tls::init(),
      ops::tty::init(),
      // Permissions ext (worker specific state)
      perm_ext,