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
|
package utils
import (
"crypto/tls"
"crypto/x509"
"fmt"
"net/http"
"net/url"
"os"
"path"
"regexp"
"strconv"
"strings"
"github.com/kong/go-kong/kong"
"github.com/kong/go-kong/kong/custom"
"github.com/pkg/errors"
)
// KongRawState contains all of Kong Data
type KongRawState struct {
Services []*kong.Service
Routes []*kong.Route
Plugins []*kong.Plugin
Upstreams []*kong.Upstream
Targets []*kong.Target
Certificates []*kong.Certificate
SNIs []*kong.SNI
CACertificates []*kong.CACertificate
Consumers []*kong.Consumer
CustomEntities []*custom.Entity
KeyAuths []*kong.KeyAuth
HMACAuths []*kong.HMACAuth
JWTAuths []*kong.JWTAuth
BasicAuths []*kong.BasicAuth
ACLGroups []*kong.ACLGroup
Oauth2Creds []*kong.Oauth2Credential
MTLSAuths []*kong.MTLSAuth
}
// ErrArray holds an array of errors.
type ErrArray struct {
Errors []error
}
// Error returns a pretty string of errors present.
func (e ErrArray) Error() string {
if len(e.Errors) == 0 {
return "nil"
}
var res string
res = strconv.Itoa(len(e.Errors)) + " errors occurred:\n"
for _, err := range e.Errors {
res += fmt.Sprintf("\t%v\n", err)
}
return res
}
// KongClientConfig holds config details to use to talk to a Kong server.
type KongClientConfig struct {
Address string
Workspace string
TLSServerName string
TLSCACert string
TLSSkipVerify bool
Debug bool
SkipWorkspaceCrud bool
Headers []string
}
// ForWorkspace returns a copy of KongClientConfig that produces a KongClient for the workspace specified by argument.
func (kc *KongClientConfig) ForWorkspace(name string) KongClientConfig {
result := *kc
result.Workspace = name
return result
}
// HeaderRoundTripper injects Headers into requests
// made via RT.
type HeaderRoundTripper struct {
headers []string
rt http.RoundTripper
}
// RoundTrip satisfies the RoundTripper interface.
func (t *HeaderRoundTripper) RoundTrip(req *http.Request) (*http.Response,
error) {
newRequest := new(http.Request)
*newRequest = *req
newRequest.Header = make(http.Header, len(req.Header))
for k, s := range req.Header {
newRequest.Header[k] = append([]string(nil), s...)
}
for _, s := range t.headers {
split := strings.SplitN(s, ":", 2)
if len(split) >= 2 {
newRequest.Header[split[0]] = append([]string(nil), split[1])
}
}
return t.rt.RoundTrip(newRequest)
}
// GetKongClient returns a Kong client
func GetKongClient(opt KongClientConfig) (*kong.Client, error) {
var tlsConfig tls.Config
if opt.TLSSkipVerify {
tlsConfig.InsecureSkipVerify = true
}
if opt.TLSServerName != "" {
tlsConfig.ServerName = opt.TLSServerName
}
if opt.TLSCACert != "" {
certPool := x509.NewCertPool()
ok := certPool.AppendCertsFromPEM([]byte(opt.TLSCACert))
if !ok {
return nil, errors.New("failed to load TLSCACert")
}
tlsConfig.RootCAs = certPool
}
c := &http.Client{}
defaultTransport := http.DefaultTransport.(*http.Transport)
defaultTransport.TLSClientConfig = &tlsConfig
c.Transport = defaultTransport
if len(opt.Headers) > 0 {
c.Transport = &HeaderRoundTripper{
headers: opt.Headers,
rt: defaultTransport,
}
}
address := CleanAddress(opt.Address)
url, err := url.ParseRequestURI(address)
if err != nil {
return nil, errors.Wrap(err, "failed to parse kong address")
}
if opt.Workspace != "" {
url.Path = path.Join(url.Path, opt.Workspace)
}
kongClient, err := kong.NewClient(kong.String(url.String()), c)
if err != nil {
return nil, errors.Wrap(err, "creating client for Kong's Admin API")
}
if opt.Debug {
kongClient.SetDebugMode(true)
kongClient.SetLogger(os.Stderr)
}
return kongClient, nil
}
// CleanAddress removes trailling / from a URL.
func CleanAddress(address string) string {
re := regexp.MustCompile("[/]+$")
return re.ReplaceAllString(address, "")
}
|
