/
validate.go
116 lines (95 loc) · 1.87 KB
/
validate.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
package validator
import (
_ "embed"
"encoding/json"
"errors"
"io/ioutil"
"log"
"os"
"strings"
"github.com/santhosh-tekuri/jsonschema/v5"
"github.com/tidwall/gjson"
"sigs.k8s.io/yaml"
)
var (
//go:embed schemas/v3.0.json
schemaV30 []byte
//go:embed schemas/v3.1.json
schemaV31 []byte
)
type Version int
const (
UNKNOWN Version = iota
V30
V31
)
func detectVersion(target string) (Version, error) {
log.Println("Detecting version...")
v := gjson.Get(target, "openapi")
if v.Str == "" {
return UNKNOWN, errors.New("invalid format")
}
log.Println("version: " + v.Str)
s := strings.Split(v.Str, ".")
if s[0] == "3" && s[1] == "0" {
return V30, nil
} else if s[0] == "3" && s[1] == "1" {
return V31, nil
}
return UNKNOWN, nil
}
func readFromFile(fileName string) (string, error) {
f, err := os.Open(fileName)
if err != nil {
return "", err
}
defer f.Close()
b, err := ioutil.ReadAll(f)
if err != nil {
return "", err
}
return string(b), nil
}
func yamlToJSON(target string) (string, error) {
j, err := yaml.YAMLToJSON([]byte(target))
if err != nil {
return "", err
}
return string(j), nil
}
func Validate(fileName string) error {
target, err := readFromFile(fileName)
if err != nil {
log.Fatalf(err.Error())
}
target, err = yamlToJSON(target)
if err != nil {
log.Fatalf(err.Error())
}
version, err := detectVersion(target)
if err != nil {
log.Fatalf(err.Error())
}
var schema string
switch version {
case V30:
schema = string(schemaV30)
case V31:
schema = string(schemaV31)
default:
log.Fatal("unknown version")
}
sch, err := jsonschema.CompileString("", schema)
if err != nil {
log.Fatalf(err.Error())
}
var v interface{}
if err := json.Unmarshal([]byte(target), &v); err != nil {
log.Fatal(err)
}
if err = sch.Validate(v); err != nil {
log.Fatalf(err.Error())
}
log.Println("Validate OK!!")
return nil
}