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client.go
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client.go
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package tls
import (
"crypto/tls"
"crypto/x509"
"encoding/pem"
"fmt"
"io/ioutil"
)
func ClientConfig(servername string, rootPaths []string) (*tls.Config, error) {
roots := make([][]byte, 0)
for _, certPath := range rootPaths {
bytes, err := ioutil.ReadFile(certPath)
if err != nil {
return nil, err
}
roots = append(roots, bytes)
}
return clientConfigFromBytes(servername, roots)
}
func ClientSnakeoil() (tlsConfig *tls.Config, err error) {
root, err := Asset("assets/tls/snakeoil.root.crt")
if err != nil {
return
}
return clientConfigFromBytes("snakeoil.example.com", [][]byte{root})
}
func ClientTrusted(servername string) (tlsConfig *tls.Config, err error) {
root, err := Asset("assets/tls/trusted.root.crt")
if err != nil {
return
}
return clientConfigFromBytes(servername, [][]byte{root})
}
func clientConfigFromBytes(servername string, roots [][]byte) (*tls.Config, error) {
pool := x509.NewCertPool()
for _, rootCrt := range roots {
pemBlock, _ := pem.Decode(rootCrt)
if pemBlock == nil {
return nil, fmt.Errorf("Bad PEM data")
}
certs, err := x509.ParseCertificates(pemBlock.Bytes)
if err != nil {
return nil, err
}
pool.AddCert(certs[0])
}
return &tls.Config{
RootCAs: pool,
ServerName: servername,
}, nil
}