1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
// Copyright (C) 2014 The Protocol Authors.
//go:build windows
// +build windows
package protocol
// Windows uses backslashes as file separator
import (
"fmt"
"path/filepath"
"strings"
)
func makeNative(m rawModel) rawModel { return nativeModel{m} }
type nativeModel struct {
rawModel
}
func (m nativeModel) Index(folder string, files []FileInfo) error {
files = fixupFiles(files)
return m.rawModel.Index(folder, files)
}
func (m nativeModel) IndexUpdate(folder string, files []FileInfo) error {
files = fixupFiles(files)
return m.rawModel.IndexUpdate(folder, files)
}
func (m nativeModel) Request(folder, name string, blockNo, size int32, offset int64, hash []byte, weakHash uint32, fromTemporary bool) (RequestResponse, error) {
if strings.Contains(name, `\`) {
l.Warnf("Dropping request for %s, contains invalid path separator", name)
return nil, ErrNoSuchFile
}
name = filepath.FromSlash(name)
return m.rawModel.Request(folder, name, blockNo, size, offset, hash, weakHash, fromTemporary)
}
func fixupFiles(files []FileInfo) []FileInfo {
var out []FileInfo
for i := range files {
if strings.Contains(files[i].Name, `\`) {
msg := fmt.Sprintf("Dropping index entry for %s, contains invalid path separator", files[i].Name)
if files[i].Deleted {
// Dropping a deleted item doesn't have any consequences.
l.Debugln(msg)
} else {
l.Warnln(msg)
}
if out == nil {
// Most incoming updates won't contain anything invalid, so
// we delay the allocation and copy to output slice until we
// really need to do it, then copy all the so-far valid
// files to it.
out = make([]FileInfo, i, len(files)-1)
copy(out, files)
}
continue
}
// Fixup the path separators
files[i].Name = filepath.FromSlash(files[i].Name)
if out != nil {
out = append(out, files[i])
}
}
if out != nil {
// We did some filtering
return out
}
// Unchanged
return files
}
|
