forked from rancher/rancher
-
Notifications
You must be signed in to change notification settings - Fork 0
/
testwrap.go
206 lines (173 loc) · 5.31 KB
/
testwrap.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
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
package utils
import (
"crypto/tls"
"crypto/x509"
"encoding/pem"
"fmt"
"io/ioutil"
"math/rand"
"net"
"net/http"
"time"
"github.com/rancher/types/apis/management.cattle.io/v3"
"github.com/rancher/types/config/dialer"
"github.com/pkg/errors"
)
const (
sslv23 = "SSLv23"
tlsv1 = "TLSv1"
tlsv1_1 = "TLSv1_1"
tlsv1_2 = "TLSv1_2"
)
const (
deadlineTimeout = time.Duration(2 * time.Second)
)
var (
testMessage = "Rancher logging target setting validated"
)
type LoggingTargetTestWrap interface {
TestReachable(dial dialer.Dialer, includeSendTestLog bool) error
}
func NewLoggingTargetTestWrap(loggingTargets v3.LoggingTargets) LoggingTargetTestWrap {
if loggingTargets.ElasticsearchConfig != nil {
return &elasticsearchTestWrap{loggingTargets.ElasticsearchConfig}
} else if loggingTargets.SplunkConfig != nil {
return &splunkTestWrap{loggingTargets.SplunkConfig}
} else if loggingTargets.SyslogConfig != nil {
return &syslogTestWrap{loggingTargets.SyslogConfig}
} else if loggingTargets.KafkaConfig != nil {
return &kafkaTestWrap{loggingTargets.KafkaConfig}
} else if loggingTargets.FluentForwarderConfig != nil {
return &fluentForwarderTestWrap{loggingTargets.FluentForwarderConfig}
} else if loggingTargets.CustomTargetConfig != nil {
return &customTargetTestWrap{loggingTargets.CustomTargetConfig}
}
return nil
}
func testReachableHTTP(dial dialer.Dialer, req *http.Request, tlsConfig *tls.Config) error {
transport := &http.Transport{
Dial: dial,
TLSClientConfig: tlsConfig,
}
client := http.Client{
Transport: transport,
Timeout: 10 * time.Second,
}
res, err := client.Do(req)
if err != nil {
return errors.Wrapf(err, "request to logging target %s failed", req.URL)
}
if res.StatusCode < http.StatusOK || res.StatusCode >= http.StatusMultipleChoices {
body, err := ioutil.ReadAll(res.Body)
if err != nil {
return errors.Wrapf(err, "read response body from %s failed, response code is %v", req.URL.String(), res.StatusCode)
}
return fmt.Errorf("response code from %s is %v, not include in the 2xx success HTTP status codes, response body: %s", req.URL.String(), res.StatusCode, string(body))
}
return nil
}
func writeToUDPConn(data []byte, smartHost string) error {
conn, err := net.Dial("udp", smartHost)
if err != nil {
return errors.Wrapf(err, "dail to udp endpoint %s failed", smartHost)
}
defer conn.Close()
_, err = conn.Write(data)
if err != nil {
return errors.Wrapf(err, "write udp endpoint %s failed", smartHost)
}
return nil
}
func newTCPConn(dialer dialer.Dialer, smartHost string, tlsConfig *tls.Config, handshake bool) (net.Conn, error) {
conn, err := dialer("tcp", smartHost)
if err != nil {
return nil, errors.Wrap(err, "create raw conn failed")
}
conn.SetDeadline(time.Now().Add(deadlineTimeout))
if tlsConfig == nil {
return conn, nil
}
tlsConn := tls.Client(conn, tlsConfig)
if handshake {
if err := tlsConn.Handshake(); err != nil {
conn.Close()
return nil, errors.Wrapf(err, "tls handshake %s failed", smartHost)
}
}
return tlsConn, nil
}
func newUDPConn(smartHost string) (net.Conn, error) {
conn, err := net.Dial("udp", smartHost)
if err != nil {
return nil, errors.Wrapf(err, "dail to udp endpoint %s failed", smartHost)
}
conn.SetDeadline(time.Now().Add(deadlineTimeout))
return conn, nil
}
func decodePEM(clientKey, passphrase string) ([]byte, error) {
clientKeyBytes := []byte(clientKey)
pemBlock, _ := pem.Decode(clientKeyBytes)
if pemBlock == nil {
return nil, fmt.Errorf("no valid private key found")
}
var err error
if x509.IsEncryptedPEMBlock(pemBlock) {
clientKeyBytes, err = x509.DecryptPEMBlock(pemBlock, []byte(passphrase))
if err != nil {
return nil, errors.Wrap(err, "private key is encrypted, but could not decrypt it")
}
clientKeyBytes = pem.EncodeToMemory(&pem.Block{Type: pemBlock.Type, Bytes: clientKeyBytes})
}
return clientKeyBytes, nil
}
func buildTLSConfig(rootCA, clientCert, clientKey, clientKeyPass, sslVersion, serverName string, sslVerify bool) (config *tls.Config, err error) {
if rootCA == "" && clientCert == "" && clientKey == "" && clientKeyPass == "" && sslVersion == "" {
return nil, nil
}
config = &tls.Config{
InsecureSkipVerify: !sslVerify,
ServerName: serverName,
}
var decodeClientKeyBytes = []byte(clientKey)
if clientKeyPass != "" {
decodeClientKeyBytes, err = decodePEM(clientKey, clientKeyPass)
if err != nil {
return nil, err
}
}
if clientCert != "" {
cert, err := tls.X509KeyPair([]byte(clientCert), decodeClientKeyBytes)
if err != nil {
return nil, errors.Wrap(err, "load client cert and key failed")
}
config.Certificates = []tls.Certificate{cert}
}
if rootCA != "" {
caCertPool := x509.NewCertPool()
caCertPool.AppendCertsFromPEM([]byte(rootCA))
config.RootCAs = caCertPool
}
if sslVersion != "" {
switch sslVersion {
case sslv23:
config.MaxVersion = tls.VersionSSL30
case tlsv1:
config.MaxVersion = tls.VersionTLS10
config.MinVersion = tls.VersionTLS10
case tlsv1_1:
config.MaxVersion = tls.VersionTLS11
config.MinVersion = tls.VersionTLS11
case tlsv1_2:
config.MaxVersion = tls.VersionTLS12
config.MinVersion = tls.VersionTLS12
}
}
return config, nil
}
func randHex(n int) string {
b := make([]byte, n)
for i := range b {
b[i] = letterHex[rand.Intn(len(letterHex))]
}
return string(b)
}