1 // Copyright 2010 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
4 5 package mime
6 7 import (
8 "internal/syscall/windows/registry"
9 )
10 11 func init() {
12 osInitMime = initMimeWindows
13 }
14 15 func initMimeWindows() {
16 names, err := registry.CLASSES_ROOT.ReadSubKeyNames()
17 if err != nil {
18 return
19 }
20 for _, name := range names {
21 if len(name) < 2 || name[0] != '.' { // looking for extensions only
22 continue
23 }
24 k, err := registry.OpenKey(registry.CLASSES_ROOT, name, registry.READ)
25 if err != nil {
26 continue
27 }
28 v, _, err := k.GetStringValue("Content Type")
29 k.Close()
30 if err != nil {
31 continue
32 }
33 34 // There is a long-standing problem on Windows: the
35 // registry sometimes records that the ".js" extension
36 // should be "text/plain". See issue #32350. While
37 // normally local configuration should override
38 // defaults, this problem is common enough that we
39 // handle it here by ignoring that registry setting.
40 if name == ".js" && (v == "text/plain" || v == "text/plain; charset=utf-8") {
41 continue
42 }
43 44 setExtensionType(name, v)
45 }
46 }
47 48 func initMimeForTests() map[string][]byte {
49 return map[string][]byte{
50 ".PnG": "image/png",
51 }
52 }
53