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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.import { assert, assertEquals, assertStrContains } from "../testing/asserts.ts";import { BufReader } from "../io/bufio.ts";import { TextProtoReader } from "../textproto/mod.ts";import { ServerRequest } from "./server.ts";import { serveFile } from "./file_server.ts";const { test } = Deno;let fileServer: Deno.Process;
async function startFileServer(): Promise<void> {  fileServer = Deno.run({    cmd: [      Deno.execPath(),      "run",      "--allow-read",      "--allow-net",      "http/file_server.ts",      ".",      "--cors",    ],    stdout: "piped",    stderr: "null",  });  // Once fileServer is ready it will write to its stdout.  assert(fileServer.stdout != null);  const r = new TextProtoReader(new BufReader(fileServer.stdout));  const s = await r.readLine();  assert(s !== Deno.EOF && s.includes("server listening"));}
function killFileServer(): void {  fileServer.close();  fileServer.stdout?.close();}
test("file_server serveFile", async (): Promise<void> => {  await startFileServer();  try {    const res = await fetch("http://localhost:4500/README.md");    assert(res.headers.has("access-control-allow-origin"));    assert(res.headers.has("access-control-allow-headers"));    assertEquals(res.headers.get("content-type"), "text/markdown");    const downloadedFile = await res.text();    const localFile = new TextDecoder().decode(      await Deno.readFile("README.md")    );    assertEquals(downloadedFile, localFile);  } finally {    killFileServer();  }});
test(async function serveDirectory(): Promise<void> {  await startFileServer();  try {    const res = await fetch("http://localhost:4500/");    assert(res.headers.has("access-control-allow-origin"));    assert(res.headers.has("access-control-allow-headers"));    const page = await res.text();    assert(page.includes("README.md"));
    // `Deno.FileInfo` is not completely compatible with Windows yet    // TODO: `mode` should work correctly in the future.    // Correct this test case accordingly.    Deno.build.os !== "win" &&      assert(/<td class="mode">(\s)*\([a-zA-Z-]{10}\)(\s)*<\/td>/.test(page));    Deno.build.os === "win" &&      assert(/<td class="mode">(\s)*\(unknown mode\)(\s)*<\/td>/.test(page));    assert(page.includes(`<a href="/README.md">README.md</a>`));  } finally {    killFileServer();  }});
test(async function serveFallback(): Promise<void> {  await startFileServer();  try {    const res = await fetch("http://localhost:4500/badfile.txt");    assert(res.headers.has("access-control-allow-origin"));    assert(res.headers.has("access-control-allow-headers"));    assertEquals(res.status, 404);    const _ = await res.text();  } finally {    killFileServer();  }});
test(async function serveWithUnorthodoxFilename(): Promise<void> {  await startFileServer();  try {    let res = await fetch("http://localhost:4500/http/testdata/%");    assert(res.headers.has("access-control-allow-origin"));    assert(res.headers.has("access-control-allow-headers"));    assertEquals(res.status, 200);    let _ = await res.text();    res = await fetch("http://localhost:4500/http/testdata/test%20file.txt");    assert(res.headers.has("access-control-allow-origin"));    assert(res.headers.has("access-control-allow-headers"));    assertEquals(res.status, 200);    _ = await res.text();  } finally {    killFileServer();  }});
test(async function servePermissionDenied(): Promise<void> {  const deniedServer = Deno.run({    cmd: [Deno.execPath(), "run", "--allow-net", "http/file_server.ts"],    stdout: "piped",    stderr: "piped",  });  assert(deniedServer.stdout != null);  const reader = new TextProtoReader(new BufReader(deniedServer.stdout));  assert(deniedServer.stderr != null);  const errReader = new TextProtoReader(new BufReader(deniedServer.stderr));  const s = await reader.readLine();  assert(s !== Deno.EOF && s.includes("server listening"));
  try {    const res = await fetch("http://localhost:4500/");    const _ = await res.text();    assertStrContains(      (await errReader.readLine()) as string,      "run again with the --allow-read flag"    );  } finally {    deniedServer.close();    deniedServer.stdout.close();    deniedServer.stderr.close();  }});
test(async function printHelp(): Promise<void> {  const helpProcess = Deno.run({    cmd: [Deno.execPath(), "run", "http/file_server.ts", "--help"],    stdout: "piped",  });  assert(helpProcess.stdout != null);  const r = new TextProtoReader(new BufReader(helpProcess.stdout));  const s = await r.readLine();  assert(s !== Deno.EOF && s.includes("Deno File Server"));  helpProcess.close();  helpProcess.stdout.close();});
test("contentType", async () => {  const request = new ServerRequest();  const response = await serveFile(request, "http/testdata/hello.html");  const contentType = response.headers!.get("content-type");  assertEquals(contentType, "text/html");  (response.body as Deno.File).close();});