forked from goharbor/harbor
-
Notifications
You must be signed in to change notification settings - Fork 0
/
utils.go
118 lines (101 loc) · 2.64 KB
/
utils.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
package chartserver
import (
"encoding/json"
"errors"
"fmt"
"net/http"
"net/url"
"strings"
)
const (
contentTypeHeader = "content-type"
contentTypeJSON = "application/json"
)
//WriteError writes error to http client
func WriteError(w http.ResponseWriter, code int, err error) {
errorObj := make(map[string]string)
errorObj["error"] = err.Error()
errorContent, errorMarshal := json.Marshal(errorObj)
if errorMarshal != nil {
errorContent = []byte(err.Error())
}
w.WriteHeader(code)
w.Write(errorContent)
}
//WriteInternalError writes error with statusCode == 500
func WriteInternalError(w http.ResponseWriter, err error) {
WriteError(w, http.StatusInternalServerError, err)
}
//Write JSON data to http client
func writeJSONData(w http.ResponseWriter, data []byte) {
w.Header().Set(contentTypeHeader, contentTypeJSON)
w.WriteHeader(http.StatusOK)
w.Write(data)
}
//Extract error object '{"error": "****---***"}' from the content if existing
//nil error will be returned if it does exist
func extractError(content []byte) error {
if len(content) == 0 {
return nil
}
errorObj := make(map[string]string)
err := json.Unmarshal(content, &errorObj)
if err != nil {
return nil
}
if errText, ok := errorObj["error"]; ok {
return errors.New(errText)
}
return nil
}
//Parse the redis configuration to the beego cache pattern
//Config pattern is "address:port[,weight,password,db_index]"
func parseRedisConfig(redisConfigV string) (string, error) {
if len(redisConfigV) == 0 {
return "", errors.New("empty redis config")
}
redisConfig := make(map[string]string)
redisConfig["key"] = cacheCollectionName
//Try best to parse the configuration segments.
//If the related parts are missing, assign default value.
//The default database index for UI process is 0.
configSegments := strings.Split(redisConfigV, ",")
for i, segment := range configSegments {
if i > 3 {
//ignore useless segments
break
}
switch i {
//address:port
case 0:
redisConfig["conn"] = segment
//password, may not exist
case 2:
redisConfig["password"] = segment
//database index, may not exist
case 3:
redisConfig["dbNum"] = segment
}
}
//Assign default value
if len(redisConfig["dbNum"]) == 0 {
redisConfig["dbNum"] = "0"
}
//Try to validate the connection address
fullAddr := redisConfig["conn"]
if strings.Index(fullAddr, "://") == -1 {
//Append schema
fullAddr = fmt.Sprintf("redis://%s", fullAddr)
}
//Validate it by url
_, err := url.Parse(fullAddr)
if err != nil {
return "", err
}
//Convert config map to string
cfgData, err := json.Marshal(redisConfig)
if err != nil {
return "", err
}
return string(cfgData), nil
}