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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
package hotline
import (
"bytes"
"encoding/binary"
"errors"
"path"
"strings"
)
const pathSeparator = "/" // File path separator TODO: make configurable to support Windows
// FilePathItem represents the file or directory portion of a delimited file path (e.g. foo and bar in "/foo/bar")
// 00 00
// 09
// 73 75 62 66 6f 6c 64 65 72 // "subfolder"
type FilePathItem struct {
Len byte
Name []byte
}
func NewFilePathItem(b []byte) FilePathItem {
return FilePathItem{
Len: b[2],
Name: b[3:],
}
}
type FilePath struct {
ItemCount [2]byte
Items []FilePathItem
}
const minFilePathLen = 2
func (fp *FilePath) UnmarshalBinary(b []byte) error {
if b == nil {
return nil
}
if len(b) < minFilePathLen {
return errors.New("insufficient bytes")
}
err := binary.Read(bytes.NewReader(b[0:2]), binary.BigEndian, &fp.ItemCount)
if err != nil {
return err
}
pathData := b[2:]
for i := uint16(0); i < fp.Len(); i++ {
segLen := pathData[2]
fp.Items = append(fp.Items, NewFilePathItem(pathData[:segLen+3]))
pathData = pathData[3+segLen:]
}
return nil
}
func (fp *FilePath) IsDropbox() bool {
if fp.Len() == 0 {
return false
}
return strings.Contains(strings.ToLower(string(fp.Items[fp.Len()-1].Name)), "drop box")
}
func (fp *FilePath) IsUploadDir() bool {
if fp.Len() == 0 {
return false
}
return strings.Contains(strings.ToLower(string(fp.Items[fp.Len()-1].Name)), "uploads")
}
func (fp *FilePath) Len() uint16 {
return binary.BigEndian.Uint16(fp.ItemCount[:])
}
func (fp *FilePath) String() string {
out := []string{"/"}
for _, i := range fp.Items {
out = append(out, string(i.Name))
}
return path.Join(out...)
}
func ReadFilePath(filePathFieldData []byte) string {
var fp FilePath
err := fp.UnmarshalBinary(filePathFieldData)
if err != nil {
// TODO
}
return fp.String()
}
func readPath(fileRoot string, filePath, fileName []byte) (fullPath string, err error) {
var fp FilePath
if filePath != nil {
if err = fp.UnmarshalBinary(filePath); err != nil {
return "", err
}
}
fullPath = path.Join(
"/",
fileRoot,
fp.String(),
path.Join("/", string(fileName)),
)
return fullPath, nil
}
|
