-
Notifications
You must be signed in to change notification settings - Fork 0
/
api-server.go
180 lines (159 loc) · 4.01 KB
/
api-server.go
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
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
package main
import (
"fmt"
"github.com/gorilla/sessions"
"github.com/kirsle/configdir"
"github.com/omecodes/ditt"
"github.com/omecodes/ditt/info"
"github.com/spf13/cobra"
"io/ioutil"
"log"
"math/rand"
"os"
"path/filepath"
"time"
)
const (
cookiesFile = "cookies-key"
cookieStoreDir = "cookies-store"
adminPasswordFile = "admin-auth"
)
var (
port int
dataDirname string
databaseURI string
cmd *cobra.Command
)
func init() {
programName := filepath.Base(os.Args[0])
cmd = &cobra.Command{
Use: programName,
Run: func(cmd *cobra.Command, args []string) {
_ = cmd.Help()
},
}
versionCommand := &cobra.Command{
Use: "version",
Short: "Shows the version info",
Run: func(cmd *cobra.Command, args []string) {
showVersion()
},
}
startCommand := &cobra.Command{
Use: "start",
Short: "Starts the server",
Run: func(cmd *cobra.Command, args []string) {
startServer()
},
}
flags := startCommand.PersistentFlags()
flags.IntVar(&port, "port", 80, "The HTTP server port")
flags.StringVar(&databaseURI, "db-uri", "localhost", "The database URI")
flags.StringVar(&dataDirname, "data-dir", "", "Directory path in where file data are saved")
cmd.AddCommand(versionCommand)
cmd.AddCommand(startCommand)
}
func showVersion() {
fmt.Println()
fmt.Println(" Version:", info.ApplicationName)
fmt.Println(" Name:", info.Version)
fmt.Println("Build Revision:", info.BuildRevision)
fmt.Println(" Build Stamp:", info.BuildStamp)
fmt.Println()
}
func startServer() {
configDir := configdir.LocalConfig(info.ApplicationName)
err := os.MkdirAll(configDir, os.ModePerm)
if err != nil {
log.Fatalln(err)
}
fmt.Println("CONFIG DIR: ", configDir)
setupDataDir(configDir)
setupCookies(configDir)
setAdminAuthentication(configDir)
setupMongoDB()
err = ditt.Serve(&ditt.Config{Port: port})
if err != nil {
log.Fatalln(err)
}
}
func setupDataDir(configDir string) {
if dataDirname == "" {
dataDirname = filepath.Join(configDir, "data")
err := os.MkdirAll(dataDirname, os.ModePerm)
if err != nil {
log.Fatalln(err)
}
}
ditt.Env.Files = ditt.NewDirFiles(dataDirname)
}
func setupCookies(configDir string) {
cookieKeyFilename := filepath.Join(configDir, cookiesFile)
keyData, err := ioutil.ReadFile(cookieKeyFilename)
if err != nil {
if os.IsNotExist(err) {
keyData = make([]byte, 64)
_, err = rand.Read(keyData)
if err != nil {
log.Fatalln(err)
}
err = ioutil.WriteFile(cookieKeyFilename, keyData, 0600)
if err != nil {
log.Fatalln(err)
}
} else {
log.Fatalln(err)
}
}
cookiesStoreDirname := filepath.Join(configDir, cookieStoreDir)
err = os.MkdirAll(cookiesStoreDirname, os.ModePerm)
if err != nil {
log.Fatalln(err)
}
ditt.Env.CookiesStore = sessions.NewFilesystemStore(cookiesStoreDirname, keyData[:31], keyData[32:])
}
func setupMongoDB() {
store, err := ditt.NewMongoUserDataStore(databaseURI)
if err != nil {
log.Fatalln("Mongo", err)
}
ditt.Env.DataStore = store
}
func setAdminAuthentication(configDir string) {
adminPasswordFilename := filepath.Join(configDir, adminPasswordFile)
adminPasswordBytes, err := ioutil.ReadFile(adminPasswordFilename)
if err != nil {
if os.IsNotExist(err) {
adminPasswordBytes = generateRandomPassword(16)
err = ioutil.WriteFile(adminPasswordFilename, adminPasswordBytes, 0600)
if err != nil {
log.Fatalln(err)
}
} else {
log.Fatalln(err)
}
}
ditt.Env.AdminPassword = string(adminPasswordBytes)
}
func generateRandomPassword(length int) []byte {
rand.Seed(time.Now().UnixNano())
digits := "0123456789"
specials := "=+*!@#$"
all := "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" + digits + specials
buf := make([]byte, length)
buf[0] = digits[rand.Intn(len(digits))]
buf[1] = specials[rand.Intn(len(specials))]
for i := 2; i < length; i++ {
buf[i] = all[rand.Intn(len(all))]
}
rand.Shuffle(len(buf), func(i, j int) {
buf[i], buf[j] = buf[j], buf[i]
})
return buf
}
func main() {
err := cmd.Execute()
if err != nil {
log.Fatalln(err)
}
}