Revert "http: delete conn parameter in readRequest" (denoland/deno_std#550)

This reverts commit 209183e248.
Fixes: denoland/deno_std#441
Original: 3e17815c7e

http/server.ts

@@ -104,6 +104,7 @@ export class ServerRequest {
   protoMinor!: number;
   protoMajor!: number;
   headers!: Headers;
+  conn!: Conn;
   r!: BufReader;
   w!: BufWriter;
   done: Deferred<void> = deferred();
@@ -283,6 +284,7 @@ export function parseHTTPVersion(vers: string): [number, number] {
 }
 
 export async function readRequest(
+  conn: Conn,
   bufr: BufReader
 ): Promise<ServerRequest | Deno.EOF> {
   const tp = new TextProtoReader(bufr);
@@ -292,6 +294,7 @@ export async function readRequest(
   if (headers === Deno.EOF) throw new UnexpectedEOFError();
 
   const req = new ServerRequest();
+  req.conn = conn;
   req.r = bufr;
   [req.method, req.url, req.proto] = firstLine.split(" ", 3);
   [req.protoMinor, req.protoMajor] = parseHTTPVersion(req.proto);
@@ -321,7 +324,7 @@ export class Server implements AsyncIterable<ServerRequest> {
 
     while (!this.closing) {
       try {
-        req = await readRequest(bufr);
+        req = await readRequest(conn, bufr);
       } catch (e) {
         err = e;
         break;

http/server_test.ts

@@ -74,6 +74,21 @@ test(async function responseWrite(): Promise<void> {
     const request = new ServerRequest();
     request.w = bufw;
 
+    request.conn = {
+      localAddr: "",
+      remoteAddr: "",
+      rid: -1,
+      closeRead: (): void => {},
+      closeWrite: (): void => {},
+      read: async (): Promise<number | Deno.EOF> => {
+        return 0;
+      },
+      write: async (): Promise<number> => {
+        return -1;
+      },
+      close: (): void => {}
+    };
+
     await request.respond(testCase.response);
     assertEquals(buf.toString(), testCase.raw);
     await request.done;
@@ -318,6 +333,21 @@ test(async function writeStringReaderResponse(): Promise<void> {
   assertEquals(r.more, false);
 });
 
+const mockConn = {
+  localAddr: "",
+  remoteAddr: "",
+  rid: -1,
+  closeRead: (): void => {},
+  closeWrite: (): void => {},
+  read: async (): Promise<number | Deno.EOF> => {
+    return 0;
+  },
+  write: async (): Promise<number> => {
+    return -1;
+  },
+  close: (): void => {}
+};
+
 test(async function readRequestError(): Promise<void> {
   let input = `GET / HTTP/1.1
 malformedHeader
@@ -325,7 +355,7 @@ malformedHeader
   const reader = new BufReader(new StringReader(input));
   let err;
   try {
-    await readRequest(reader);
+    await readRequest(mockConn, reader);
   } catch (e) {
     err = e;
   }
@@ -404,7 +434,7 @@ test(async function testReadRequestError(): Promise<void> {
     // eslint-disable-next-line @typescript-eslint/no-explicit-any
     let req: any;
     try {
-      req = await readRequest(reader);
+      req = await readRequest(mockConn, reader);
     } catch (e) {
       err = e;
     }