From e0fc269f77af97f7cf33097d82f92ff7e08a2f06 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Max=20=F0=9F=91=A8=F0=9F=8F=BD=E2=80=8D=F0=9F=92=BB=20Copla?=
 =?utf8?q?n?= <mchcopl@gmail.com>
Date: Fri, 22 Dec 2023 11:38:29 -0800
Subject: [PATCH] net/http: make FileServer look good on mobile
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit

Currently when viewing directories on a phone, the text is small and
often hard to tap correctly.  This commit adds the viewport property to
the page to make it look correct on phones.  This commit also makes the
page behave in Standards Mode instead of Quirks Mode which does not
effect the behavior of this page but makes me feel good inside âºï¸

Change-Id: I4babcf79085e85fba57453b7a235e4750a269a42
Reviewed-on: https://go-review.googlesource.com/c/go/+/552595
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Commit-Queue: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Max Coplan <mchcopl@gmail.com>
---
 src/net/http/fs.go      | 2 ++
 src/net/http/fs_test.go | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/net/http/fs.go b/src/net/http/fs.go
index af7511a7a4..678b978b7b 100644
--- a/src/net/http/fs.go
+++ b/src/net/http/fs.go
@@ -151,6 +151,8 @@ func dirList(w ResponseWriter, r *Request, f File) {
 	sort.Slice(dirs, func(i, j int) bool { return dirs.name(i) < dirs.name(j) })
 
 	w.Header().Set("Content-Type", "text/html; charset=utf-8")
+	fmt.Fprintf(w, "<!doctype html>\n")
+	fmt.Fprintf(w, "<meta name=\"viewport\" content=\"width=device-width\">\n")
 	fmt.Fprintf(w, "<pre>\n")
 	for i, n := 0, dirs.len(); i < n; i++ {
 		name := dirs.name(i)
diff --git a/src/net/http/fs_test.go b/src/net/http/fs_test.go
index 861e70caf2..383d27df9b 100644
--- a/src/net/http/fs_test.go
+++ b/src/net/http/fs_test.go
@@ -325,7 +325,7 @@ func TestFileServerCleans(t *testing.T) {
 
 func TestFileServerEscapesNames(t *testing.T) { run(t, testFileServerEscapesNames) }
 func testFileServerEscapesNames(t *testing.T, mode testMode) {
-	const dirListPrefix = "<pre>\n"
+	const dirListPrefix = "<!doctype html>\n<meta name=\"viewport\" content=\"width=device-width\">\n<pre>\n"
 	const dirListSuffix = "\n</pre>\n"
 	tests := []struct {
 		name, escaped string
-- 
2.48.1

