/
pki.go
161 lines (138 loc) · 4.55 KB
/
pki.go
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package service
import (
"crypto/rand"
"crypto/x509"
"crypto/x509/pkix"
"github.com/baetyl/baetyl-go/v2/pki"
"github.com/baetyl/baetyl-cloud/common"
"github.com/baetyl/baetyl-cloud/config"
"github.com/baetyl/baetyl-cloud/models"
"github.com/baetyl/baetyl-cloud/plugin"
)
//go:generate mockgen -destination=../mock/service/pki.go -package=plugin github.com/baetyl/baetyl-cloud/service PKIService
type PKIService interface {
// GetCA get ca
GetCA() ([]byte, error)
// SignServerCertificate sign a certificate which can be used to connect to cloud
SignServerCertificate(cn string, altNames models.AltNames) (*models.PEMCredential, error)
// SignNodeCertificate sign a certificate which can be used to connect to cloud
SignClientCertificate(cn string, altNames models.AltNames) (*models.PEMCredential, error)
// DeleteServerCertificate delete a server certificate by certId
DeleteServerCertificate(certId string) error
// DeleteClientCertificate delete a server certificate by certId
DeleteClientCertificate(certId string) error
}
const (
Certificate = "certificate"
CertRoot = "baetyl.ca"
)
type pkiService struct {
pki plugin.PKI
db plugin.DBStorage
}
// NewPKIService create a certificate service
func NewPKIService(config *config.CloudConfig) (PKIService, error) {
pk, err := plugin.GetPlugin(config.Plugin.PKI)
if err != nil {
return nil, err
}
ds, err := plugin.GetPlugin(config.Plugin.DatabaseStorage)
if err != nil {
return nil, err
}
p := &pkiService{
pki: pk.(plugin.PKI),
db: ds.(plugin.DBStorage),
}
return p, nil
}
func (p *pkiService) GetCA() ([]byte, error) {
// determine whether it exists in the system configuration
sysConf, err := p.db.GetSysConfig(Certificate, CertRoot)
if err == nil {
return p.pki.GetRootCert(sysConf.Value)
}
// if it does not exist in the system configuration, apply to the pki service to create a root certificate
certInfo := p.genDefaultCSR("baetyl.ca")
rootId, err := p.pki.CreateRootCert(certInfo, "")
if err != nil {
return nil, err
}
// save the applied root certificate to the system configuration
rootCertConfig := &models.SysConfig{
Type: Certificate,
Key: CertRoot,
Value: rootId,
}
_, err = p.db.CreateSysConfig(rootCertConfig)
if err != nil {
return nil, err
}
return p.pki.GetRootCert(rootId)
}
func (p *pkiService) DeleteServerCertificate(certId string) error {
return p.pki.DeleteServerCert(certId)
}
func (p *pkiService) DeleteClientCertificate(certId string) error {
return p.pki.DeleteClientCert(certId)
}
func (p *pkiService) SignServerCertificate(cn string, altNames models.AltNames) (*models.PEMCredential, error) {
return p.signCertificate(cn, altNames, p.pki.CreateServerCert, p.pki.GetServerCert)
}
func (p *pkiService) SignClientCertificate(cn string, altNames models.AltNames) (*models.PEMCredential, error) {
return p.signCertificate(cn, altNames, p.pki.CreateClientCert, p.pki.GetClientCert)
}
func (p *pkiService) signCertificate(cn string, altNames models.AltNames, create func(csr []byte, rootId string) (string, error), get func(certId string) ([]byte, error)) (*models.PEMCredential, error) {
csrInfo := p.genDefaultCSR(cn)
csrInfo.DNSNames = altNames.DNSNames
csrInfo.EmailAddresses = altNames.Emails
csrInfo.IPAddresses = altNames.IPs
csrInfo.URIs = altNames.URIs
priv, err := pki.GenCertPrivateKey(pki.DefaultDSA, pki.DefaultRSABits)
if err != nil {
return nil, err
}
keyPem, err := pki.EncodeCertPrivateKey(priv)
if err != nil {
return nil, err
}
csr, err := x509.CreateCertificateRequest(rand.Reader, csrInfo, priv.Key)
if err != nil {
return nil, err
}
sysConf, _ := p.db.GetSysConfig(Certificate, CertRoot)
if sysConf == nil {
return nil, common.Error(
common.ErrResourceNotFound,
common.Field("type", Certificate),
common.Field("name", CertRoot))
}
certId, err := create(csr, sysConf.Value)
if err != nil {
return nil, err
}
certPem, err := get(certId)
if err != nil {
return nil, err
}
return &models.PEMCredential{
CertPEM: certPem,
KeyPEM: keyPem,
CertId: certId,
}, nil
}
func (p *pkiService) genDefaultCSR(cn string) *x509.CertificateRequest {
return &x509.CertificateRequest{
Subject: pkix.Name{
Country: []string{"CN"},
Organization: []string{"Linux Foundation Edge"},
OrganizationalUnit: []string{"BAETYL"},
Locality: []string{"Haidian District"},
Province: []string{"Beijing"},
StreetAddress: []string{"Baidu Campus"},
PostalCode: []string{"100093"},
CommonName: cn,
},
EmailAddresses: []string{"baetyl@lists.lfedge.org"},
}
}