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server_test.ts
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server_test.ts
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// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Ported from
// https://github.com/golang/go/blob/master/src/net/http/responsewrite_test.go
import { TextProtoReader } from "../textproto/mod.ts";
import {
assert,
assertEquals,
assertMatch,
assertStringIncludes,
assertThrowsAsync,
} from "../testing/asserts.ts";
import {
_parseAddrFromStr,
Response,
serve,
Server,
ServerRequest,
serveTLS,
} from "./server.ts";
import { BufReader, BufWriter } from "../io/bufio.ts";
import { delay } from "../async/delay.ts";
import { decode, encode } from "../encoding/utf8.ts";
import { mockConn } from "./_mock_conn.ts";
import { dirname, fromFileUrl, join, resolve } from "../path/mod.ts";
const moduleDir = dirname(fromFileUrl(import.meta.url));
const testdataDir = resolve(moduleDir, "testdata");
interface ResponseTest {
response: Response;
raw: string;
}
const responseTests: ResponseTest[] = [
// Default response
{
response: {},
raw: "HTTP/1.1 200 OK\r\n" + "content-length: 0" + "\r\n\r\n",
},
// Empty body with status
{
response: {
status: 404,
},
raw: "HTTP/1.1 404 Not Found\r\n" + "content-length: 0" + "\r\n\r\n",
},
// HTTP/1.1, chunked coding; empty trailer; close
{
response: {
status: 200,
body: new Deno.Buffer(new TextEncoder().encode("abcdef")),
},
raw: "HTTP/1.1 200 OK\r\n" +
"transfer-encoding: chunked\r\n\r\n" +
"6\r\nabcdef\r\n0\r\n\r\n",
},
];
Deno.test("responseWrite", async function (): Promise<void> {
for (const testCase of responseTests) {
const buf = new Deno.Buffer();
const bufw = new BufWriter(buf);
const request = new ServerRequest();
request.w = bufw;
request.conn = mockConn();
await request.respond(testCase.response);
assertEquals(new TextDecoder().decode(buf.bytes()), testCase.raw);
await request.done;
}
});
Deno.test("requestContentLength", function (): void {
// Has content length
{
const req = new ServerRequest();
req.headers = new Headers();
req.headers.set("content-length", "5");
const buf = new Deno.Buffer(encode("Hello"));
req.r = new BufReader(buf);
assertEquals(req.contentLength, 5);
}
// No content length
{
const shortText = "Hello";
const req = new ServerRequest();
req.headers = new Headers();
req.headers.set("transfer-encoding", "chunked");
let chunksData = "";
let chunkOffset = 0;
const maxChunkSize = 70;
while (chunkOffset < shortText.length) {
const chunkSize = Math.min(maxChunkSize, shortText.length - chunkOffset);
chunksData += `${chunkSize.toString(16)}\r\n${
shortText.substr(chunkOffset, chunkSize)
}\r\n`;
chunkOffset += chunkSize;
}
chunksData += "0\r\n\r\n";
const buf = new Deno.Buffer(encode(chunksData));
req.r = new BufReader(buf);
assertEquals(req.contentLength, null);
}
});
interface TotalReader extends Deno.Reader {
total: number;
}
function totalReader(r: Deno.Reader): TotalReader {
let _total = 0;
async function read(p: Uint8Array): Promise<number | null> {
const result = await r.read(p);
if (typeof result === "number") {
_total += result;
}
return result;
}
return {
read,
get total(): number {
return _total;
},
};
}
Deno.test("requestBodyWithContentLength", async function (): Promise<void> {
{
const req = new ServerRequest();
req.headers = new Headers();
req.headers.set("content-length", "5");
const buf = new Deno.Buffer(encode("Hello"));
req.r = new BufReader(buf);
const body = decode(await Deno.readAll(req.body));
assertEquals(body, "Hello");
}
// Larger than internal buf
{
const longText = "1234\n".repeat(1000);
const req = new ServerRequest();
req.headers = new Headers();
req.headers.set("Content-Length", "5000");
const buf = new Deno.Buffer(encode(longText));
req.r = new BufReader(buf);
const body = decode(await Deno.readAll(req.body));
assertEquals(body, longText);
}
// Handler ignored to consume body
});
Deno.test(
"ServerRequest.finalize() should consume unread body / content-length",
async () => {
const text = "deno.land";
const req = new ServerRequest();
req.headers = new Headers();
req.headers.set("content-length", "" + text.length);
const tr = totalReader(new Deno.Buffer(encode(text)));
req.r = new BufReader(tr);
req.w = new BufWriter(new Deno.Buffer());
await req.respond({ status: 200, body: "ok" });
assertEquals(tr.total, 0);
await req.finalize();
assertEquals(tr.total, text.length);
},
);
Deno.test(
"ServerRequest.finalize() should consume unread body / chunked, trailers",
async () => {
const text = [
"5",
"Hello",
"4",
"Deno",
"0",
"",
"deno: land",
"node: js",
"",
"",
].join("\r\n");
const req = new ServerRequest();
req.headers = new Headers();
req.headers.set("transfer-encoding", "chunked");
req.headers.set("trailer", "deno,node");
const body = encode(text);
const tr = totalReader(new Deno.Buffer(body));
req.r = new BufReader(tr);
req.w = new BufWriter(new Deno.Buffer());
await req.respond({ status: 200, body: "ok" });
assertEquals(tr.total, 0);
assertEquals(req.headers.has("trailer"), true);
assertEquals(req.headers.has("deno"), false);
assertEquals(req.headers.has("node"), false);
await req.finalize();
assertEquals(tr.total, body.byteLength);
assertEquals(req.headers.has("trailer"), false);
assertEquals(req.headers.get("deno"), "land");
assertEquals(req.headers.get("node"), "js");
},
);
Deno.test("requestBodyWithTransferEncoding", async function (): Promise<void> {
{
const shortText = "Hello";
const req = new ServerRequest();
req.headers = new Headers();
req.headers.set("transfer-encoding", "chunked");
let chunksData = "";
let chunkOffset = 0;
const maxChunkSize = 70;
while (chunkOffset < shortText.length) {
const chunkSize = Math.min(maxChunkSize, shortText.length - chunkOffset);
chunksData += `${chunkSize.toString(16)}\r\n${
shortText.substr(chunkOffset, chunkSize)
}\r\n`;
chunkOffset += chunkSize;
}
chunksData += "0\r\n\r\n";
const buf = new Deno.Buffer(encode(chunksData));
req.r = new BufReader(buf);
const body = decode(await Deno.readAll(req.body));
assertEquals(body, shortText);
}
// Larger than internal buf
{
const longText = "1234\n".repeat(1000);
const req = new ServerRequest();
req.headers = new Headers();
req.headers.set("transfer-encoding", "chunked");
let chunksData = "";
let chunkOffset = 0;
const maxChunkSize = 70;
while (chunkOffset < longText.length) {
const chunkSize = Math.min(maxChunkSize, longText.length - chunkOffset);
chunksData += `${chunkSize.toString(16)}\r\n${
longText.substr(chunkOffset, chunkSize)
}\r\n`;
chunkOffset += chunkSize;
}
chunksData += "0\r\n\r\n";
const buf = new Deno.Buffer(encode(chunksData));
req.r = new BufReader(buf);
const body = decode(await Deno.readAll(req.body));
assertEquals(body, longText);
}
});
Deno.test("requestBodyReaderWithContentLength", async function (): Promise<
void
> {
{
const shortText = "Hello";
const req = new ServerRequest();
req.headers = new Headers();
req.headers.set("content-length", "" + shortText.length);
const buf = new Deno.Buffer(encode(shortText));
req.r = new BufReader(buf);
const readBuf = new Uint8Array(6);
let offset = 0;
while (offset < shortText.length) {
const nread = await req.body.read(readBuf);
assert(nread !== null);
const s = decode(readBuf.subarray(0, nread as number));
assertEquals(shortText.substr(offset, nread as number), s);
offset += nread as number;
}
const nread = await req.body.read(readBuf);
assertEquals(nread, null);
}
// Larger than given buf
{
const longText = "1234\n".repeat(1000);
const req = new ServerRequest();
req.headers = new Headers();
req.headers.set("Content-Length", "5000");
const buf = new Deno.Buffer(encode(longText));
req.r = new BufReader(buf);
const readBuf = new Uint8Array(1000);
let offset = 0;
while (offset < longText.length) {
const nread = await req.body.read(readBuf);
assert(nread !== null);
const s = decode(readBuf.subarray(0, nread as number));
assertEquals(longText.substr(offset, nread as number), s);
offset += nread as number;
}
const nread = await req.body.read(readBuf);
assertEquals(nread, null);
}
});
Deno.test("requestBodyReaderWithTransferEncoding", async function (): Promise<
void
> {
{
const shortText = "Hello";
const req = new ServerRequest();
req.headers = new Headers();
req.headers.set("transfer-encoding", "chunked");
let chunksData = "";
let chunkOffset = 0;
const maxChunkSize = 70;
while (chunkOffset < shortText.length) {
const chunkSize = Math.min(maxChunkSize, shortText.length - chunkOffset);
chunksData += `${chunkSize.toString(16)}\r\n${
shortText.substr(chunkOffset, chunkSize)
}\r\n`;
chunkOffset += chunkSize;
}
chunksData += "0\r\n\r\n";
const buf = new Deno.Buffer(encode(chunksData));
req.r = new BufReader(buf);
const readBuf = new Uint8Array(6);
let offset = 0;
while (offset < shortText.length) {
const nread = await req.body.read(readBuf);
assert(nread !== null);
const s = decode(readBuf.subarray(0, nread as number));
assertEquals(shortText.substr(offset, nread as number), s);
offset += nread as number;
}
const nread = await req.body.read(readBuf);
assertEquals(nread, null);
}
// Larger than internal buf
{
const longText = "1234\n".repeat(1000);
const req = new ServerRequest();
req.headers = new Headers();
req.headers.set("transfer-encoding", "chunked");
let chunksData = "";
let chunkOffset = 0;
const maxChunkSize = 70;
while (chunkOffset < longText.length) {
const chunkSize = Math.min(maxChunkSize, longText.length - chunkOffset);
chunksData += `${chunkSize.toString(16)}\r\n${
longText.substr(chunkOffset, chunkSize)
}\r\n`;
chunkOffset += chunkSize;
}
chunksData += "0\r\n\r\n";
const buf = new Deno.Buffer(encode(chunksData));
req.r = new BufReader(buf);
const readBuf = new Uint8Array(1000);
let offset = 0;
while (offset < longText.length) {
const nread = await req.body.read(readBuf);
assert(nread !== null);
const s = decode(readBuf.subarray(0, nread as number));
assertEquals(longText.substr(offset, nread as number), s);
offset += nread as number;
}
const nread = await req.body.read(readBuf);
assertEquals(nread, null);
}
});
Deno.test({
name: "destroyed connection",
fn: async (): Promise<void> => {
// Runs a simple server as another process
const p = Deno.run({
cmd: [
Deno.execPath(),
"run",
"--quiet",
"--allow-net",
"testdata/simple_server.ts",
],
cwd: moduleDir,
stdout: "piped",
});
let serverIsRunning = true;
const statusPromise = p
.status()
.then((): void => {
serverIsRunning = false;
})
.catch((_): void => {}); // Ignores the error when closing the process.
try {
const r = new TextProtoReader(new BufReader(p.stdout));
const s = await r.readLine();
assert(s !== null && s.includes("server listening"));
await delay(100);
// Reqeusts to the server and immediately closes the connection
const conn = await Deno.connect({ port: 4502 });
await conn.write(new TextEncoder().encode("GET / HTTP/1.0\n\n"));
conn.close();
// Waits for the server to handle the above (broken) request
await delay(100);
assert(serverIsRunning);
} finally {
// Stops the sever and allows `p.status()` promise to resolve
Deno.kill(p.pid, Deno.Signal.SIGKILL);
await statusPromise;
p.stdout.close();
p.close();
}
},
});
Deno.test({
name: "serveTLS",
fn: async (): Promise<void> => {
// Runs a simple server as another process
const p = Deno.run({
cmd: [
Deno.execPath(),
"run",
"--quiet",
"--allow-net",
"--allow-read",
"testdata/simple_https_server.ts",
],
cwd: moduleDir,
stdout: "piped",
});
let serverIsRunning = true;
const statusPromise = p
.status()
.then((): void => {
serverIsRunning = false;
})
.catch((_): void => {}); // Ignores the error when closing the process.
try {
const r = new TextProtoReader(new BufReader(p.stdout));
const s = await r.readLine();
assert(
s !== null && s.includes("server listening"),
"server must be started",
);
// Requests to the server and immediately closes the connection
const conn = await Deno.connectTls({
hostname: "localhost",
port: 4503,
certFile: join(testdataDir, "tls/RootCA.pem"),
});
await Deno.writeAll(
conn,
new TextEncoder().encode("GET / HTTP/1.0\r\n\r\n"),
);
const res = new Uint8Array(100);
const nread = await conn.read(res);
assert(nread !== null);
conn.close();
const resStr = new TextDecoder().decode(res.subarray(0, nread));
assert(resStr.includes("Hello HTTPS"));
assert(serverIsRunning);
} finally {
// Stops the sever and allows `p.status()` promise to resolve
Deno.kill(p.pid, Deno.Signal.SIGKILL);
await statusPromise;
p.stdout.close();
p.close();
}
},
});
Deno.test(
"close server while iterating",
async (): Promise<void> => {
const server = serve(":8123");
const nextWhileClosing = server[Symbol.asyncIterator]().next();
server.close();
assertEquals(await nextWhileClosing, { value: undefined, done: true });
const nextAfterClosing = server[Symbol.asyncIterator]().next();
assertEquals(await nextAfterClosing, { value: undefined, done: true });
},
);
Deno.test({
name: "[http] close server while connection is open",
async fn(): Promise<void> {
async function iteratorReq(server: Server): Promise<void> {
for await (const req of server) {
await req.respond({ body: new TextEncoder().encode(req.url) });
}
}
const server = serve(":8123");
const p = iteratorReq(server);
const conn = await Deno.connect({ hostname: "127.0.0.1", port: 8123 });
await Deno.writeAll(
conn,
new TextEncoder().encode("GET /hello HTTP/1.1\r\n\r\n"),
);
const res = new Uint8Array(100);
const nread = await conn.read(res);
assert(nread !== null);
const resStr = new TextDecoder().decode(res.subarray(0, nread));
assertStringIncludes(resStr, "/hello");
server.close();
await p;
// Client connection should still be open, verify that
// it's visible in resource table.
const resources = Deno.resources();
assertEquals(resources[conn.rid], "tcpStream");
conn.close();
},
});
Deno.test({
name: "respond error closes connection",
async fn(): Promise<void> {
const serverRoutine = async (): Promise<void> => {
const server = serve(":8124");
for await (const req of server) {
await assertThrowsAsync(async () => {
await req.respond({
status: 12345,
body: new TextEncoder().encode("Hello World"),
});
}, Deno.errors.InvalidData);
// The connection should be destroyed
assert(!(req.conn.rid in Deno.resources()));
server.close();
}
};
const p = serverRoutine();
const conn = await Deno.connect({
hostname: "127.0.0.1",
port: 8124,
});
await Deno.writeAll(
conn,
new TextEncoder().encode("GET / HTTP/1.1\r\n\r\n"),
);
conn.close();
await p;
},
});
Deno.test({
name: "[http] request error gets 400 response",
async fn(): Promise<void> {
const server = serve(":8124");
const entry = server[Symbol.asyncIterator]().next();
const conn = await Deno.connect({
hostname: "127.0.0.1",
port: 8124,
});
await Deno.writeAll(
conn,
encode("GET / HTTP/1.1\r\nmalformedHeader\r\n\r\n\r\n\r\n"),
);
const responseString = decode(await Deno.readAll(conn));
assertMatch(
responseString,
/^HTTP\/1\.1 400 Bad Request\r\ncontent-length: \d+\r\n\r\n.*\r\n\r\n$/ms,
);
conn.close();
server.close();
assert((await entry).done);
},
});
Deno.test({
name: "[http] finalizing invalid chunked data closes connection",
async fn(): Promise<void> {
const serverRoutine = async (): Promise<void> => {
const server = serve(":8124");
for await (const req of server) {
await req.respond({ status: 200, body: "Hello, world!" });
break;
}
server.close();
};
const p = serverRoutine();
const conn = await Deno.connect({
hostname: "127.0.0.1",
port: 8124,
});
await Deno.writeAll(
conn,
encode(
"PUT / HTTP/1.1\r\nTransfer-Encoding: chunked\r\n\r\nzzzzzzz\r\nhello",
),
);
await conn.closeWrite();
const responseString = decode(await Deno.readAll(conn));
assertEquals(
responseString,
"HTTP/1.1 200 OK\r\ncontent-length: 13\r\n\r\nHello, world!",
);
conn.close();
await p;
},
});
Deno.test({
name: "[http] finalizing chunked unexpected EOF closes connection",
async fn(): Promise<void> {
const serverRoutine = async (): Promise<void> => {
const server = serve(":8124");
for await (const req of server) {
await req.respond({ status: 200, body: "Hello, world!" });
break;
}
server.close();
};
const p = serverRoutine();
const conn = await Deno.connect({
hostname: "127.0.0.1",
port: 8124,
});
await Deno.writeAll(
conn,
encode("PUT / HTTP/1.1\r\nTransfer-Encoding: chunked\r\n\r\n5\r\nHello"),
);
conn.closeWrite();
const responseString = decode(await Deno.readAll(conn));
assertEquals(
responseString,
"HTTP/1.1 200 OK\r\ncontent-length: 13\r\n\r\nHello, world!",
);
conn.close();
await p;
},
});
Deno.test({
name:
"[http] receiving bad request from a closed connection should not throw",
async fn(): Promise<void> {
const server = serve(":8124");
const serverRoutine = async (): Promise<void> => {
for await (const req of server) {
await req.respond({ status: 200, body: "Hello, world!" });
}
};
const p = serverRoutine();
const conn = await Deno.connect({
hostname: "127.0.0.1",
port: 8124,
});
await Deno.writeAll(
conn,
encode([
// A normal request is required:
"GET / HTTP/1.1",
"Host: localhost",
"",
// The bad request:
"GET / HTTP/1.1",
"Host: localhost",
"INVALID!HEADER!",
"",
"",
].join("\r\n")),
);
// After sending the two requests, don't receive the reponses.
// Closing the connection now.
conn.close();
// The server will write responses to the closed connection,
// the first few `write()` calls will not throws, until the server received
// the TCP RST. So we need the normal request before the bad request to
// make the server do a few writes before it writes that `400` response.
// Wait for server to handle requests.
await delay(10);
server.close();
await p;
},
});
Deno.test({
name: "serveTLS Invalid Cert",
fn: async (): Promise<void> => {
async function iteratorReq(server: Server): Promise<void> {
for await (const req of server) {
await req.respond({ body: new TextEncoder().encode("Hello HTTPS") });
}
}
const port = 9122;
const tlsOptions = {
hostname: "localhost",
port,
certFile: join(testdataDir, "tls/localhost.crt"),
keyFile: join(testdataDir, "tls/localhost.key"),
};
const server = serveTLS(tlsOptions);
const p = iteratorReq(server);
try {
// Invalid certificate, connection should throw
// but should not crash the server
assertThrowsAsync(
() =>
Deno.connectTls({
hostname: "localhost",
port,
// certFile
}),
Deno.errors.InvalidData,
);
// Valid request after invalid
const conn = await Deno.connectTls({
hostname: "localhost",
port,
certFile: join(testdataDir, "tls/RootCA.pem"),
});
await Deno.writeAll(
conn,
new TextEncoder().encode("GET / HTTP/1.0\r\n\r\n"),
);
const res = new Uint8Array(100);
const nread = await conn.read(res);
assert(nread !== null);
conn.close();
const resStr = new TextDecoder().decode(res.subarray(0, nread));
assert(resStr.includes("Hello HTTPS"));
} finally {
// Stops the sever and allows `p.status()` promise to resolve
server.close();
await p;
}
},
});
Deno.test({
name: "server.serve() should be able to parse IPV4 address",
fn: (): void => {
const server = serve("127.0.0.1:8124");
const expected = {
hostname: "127.0.0.1",
port: 8124,
transport: "tcp",
};
assertEquals(server.listener.addr, expected);
server.close();
},
});
Deno.test({
name: "server._parseAddrFromStr() should be able to parse IPV6 address",
fn: (): void => {
const addr = _parseAddrFromStr("[::1]:8124");
const expected = {
hostname: "[::1]",
port: 8124,
};
assertEquals(addr, expected);
},
});
Deno.test({
name: "server.serve() should be able to parse IPV6 address",
fn: (): void => {
const server = serve("[::1]:8124");
const expected = {
hostname: "::1",
port: 8124,
transport: "tcp",
};
assertEquals(server.listener.addr, expected);
server.close();
},
});
Deno.test({
name: "server._parseAddrFromStr() port 80",
fn: (): void => {
const addr = _parseAddrFromStr(":80");
assertEquals(addr.port, 80);
assertEquals(addr.hostname, "0.0.0.0");
},
});