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
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
package folder
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
common "github.com/iotbzh/xds-common/golib"
"github.com/iotbzh/xds-server/lib/xdsconfig"
uuid "github.com/satori/go.uuid"
)
// IFOLDER interface implementation for native/path mapping folders
// PathMap .
type PathMap struct {
globalConfig *xdsconfig.Config
config FolderConfig
}
// NewFolderPathMap Create a new instance of PathMap
func NewFolderPathMap(gc *xdsconfig.Config) *PathMap {
f := PathMap{
globalConfig: gc,
config: FolderConfig{
Status: StatusDisable,
},
}
return &f
}
// NewUID Get a UUID
func (f *PathMap) NewUID(suffix string) string {
return uuid.NewV1().String() + "_" + suffix
}
// Add a new folder
func (f *PathMap) Add(cfg FolderConfig) (*FolderConfig, error) {
if cfg.DataPathMap.ServerPath == "" {
return nil, fmt.Errorf("ServerPath must be set")
}
// Use shareRootDir if ServerPath is a relative path
dir := cfg.DataPathMap.ServerPath
if !filepath.IsAbs(dir) {
dir = filepath.Join(f.globalConfig.FileConf.ShareRootDir, dir)
}
// Sanity check
if !common.Exists(dir) {
// try to create if not existing
if err := os.MkdirAll(dir, 0755); err != nil {
return nil, fmt.Errorf("Cannot create ServerPath directory: %s", dir)
}
}
if !common.Exists(dir) {
return nil, fmt.Errorf("ServerPath directory is not accessible: %s", dir)
}
f.config = cfg
f.config.RootPath = dir
f.config.DataPathMap.ServerPath = dir
f.config.IsInSync = true
// Verify file created by XDS agent when needed
if cfg.DataPathMap.CheckFile != "" {
errMsg := "ServerPath sanity check error (%d): %v"
ckFile := f.ConvPathCli2Svr(cfg.DataPathMap.CheckFile)
if !common.Exists(ckFile) {
return nil, fmt.Errorf(errMsg, 1, "file not present")
}
if cfg.DataPathMap.CheckContent != "" {
fd, err := os.OpenFile(ckFile, os.O_APPEND|os.O_RDWR, 0600)
if err != nil {
return nil, fmt.Errorf(errMsg, 2, err)
}
defer fd.Close()
// Check specific message written by agent
content, err := ioutil.ReadAll(fd)
if err != nil {
return nil, fmt.Errorf(errMsg, 3, err)
}
if string(content) != cfg.DataPathMap.CheckContent {
return nil, fmt.Errorf(errMsg, 4, "file content differ")
}
// Write a specific message that will be check back on agent side
msg := "Pathmap checked message written by xds-server ID: " + f.globalConfig.ServerUID + "\n"
if n, err := fd.WriteString(msg); n != len(msg) || err != nil {
return nil, fmt.Errorf(errMsg, 5, err)
}
}
}
f.config.Status = StatusEnable
return &f.config, nil
}
// GetConfig Get public part of folder config
func (f *PathMap) GetConfig() FolderConfig {
return f.config
}
// GetFullPath returns the full path of a directory (from server POV)
func (f *PathMap) GetFullPath(dir string) string {
if &dir == nil {
return f.config.DataPathMap.ServerPath
}
return filepath.Join(f.config.DataPathMap.ServerPath, dir)
}
// ConvPathCli2Svr Convert path from Client to Server
func (f *PathMap) ConvPathCli2Svr(s string) string {
if f.config.ClientPath != "" && f.config.DataPathMap.ServerPath != "" {
return strings.Replace(s,
f.config.ClientPath,
f.config.DataPathMap.ServerPath,
-1)
}
return s
}
// ConvPathSvr2Cli Convert path from Server to Client
func (f *PathMap) ConvPathSvr2Cli(s string) string {
if f.config.ClientPath != "" && f.config.DataPathMap.ServerPath != "" {
return strings.Replace(s,
f.config.DataPathMap.ServerPath,
f.config.ClientPath,
-1)
}
return s
}
// Remove a folder
func (f *PathMap) Remove() error {
// nothing to do
return nil
}
// RegisterEventChange requests registration for folder change event
func (f *PathMap) RegisterEventChange(cb *EventCB, data *EventCBData) error {
return nil
}
// UnRegisterEventChange remove registered callback
func (f *PathMap) UnRegisterEventChange() error {
return nil
}
// Sync Force folder files synchronization
func (f *PathMap) Sync() error {
return nil
}
// IsInSync Check if folder files are in-sync
func (f *PathMap) IsInSync() (bool, error) {
return true, nil
}
|
