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connector.go
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connector.go
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/*
* Copyright 2018 Venafi, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package fake
import (
"crypto"
"crypto/rand"
"crypto/x509"
"encoding/base64"
"encoding/json"
"encoding/pem"
"fmt"
"math/big"
"net/http"
"strings"
"time"
"github.com/Venafi/vcert/v5/pkg/certificate"
"github.com/Venafi/vcert/v5/pkg/endpoint"
"github.com/Venafi/vcert/v5/pkg/policy"
)
type Connector struct {
verbose bool
}
func (c *Connector) RetrieveCertificateMetaData(dn string) (*certificate.CertificateMetaData, error) {
panic("operation is not supported yet")
}
func (c *Connector) SearchCertificates(req *certificate.SearchRequest) (*certificate.CertSearchResponse, error) {
panic("operation is not supported yet")
}
func (c *Connector) SearchCertificate(zone string, cn string, sans *certificate.Sans, certMinTimeLeft time.Duration) (certificateInfo *certificate.CertificateInfo, err error) {
panic("operation is not supported yet")
}
func (c *Connector) IsCSRServiceGenerated(req *certificate.Request) (bool, error) {
panic("operation is not supported yet")
}
func (c *Connector) RetrieveSshConfig(ca *certificate.SshCaTemplateRequest) (*certificate.SshConfig, error) {
panic("operation is not supported yet")
}
func (c *Connector) RetrieveSSHCertificate(req *certificate.SshCertRequest) (response *certificate.SshCertificateObject, err error) {
panic("operation is not supported yet")
}
func (c *Connector) RequestSSHCertificate(req *certificate.SshCertRequest) (response *certificate.SshCertificateObject, err error) {
panic("operation is not supported yet")
}
func (c *Connector) RetrieveAvailableSSHTemplates() (response []certificate.SshAvaliableTemplate, err error) {
panic("operation is not supported yet")
}
func (c *Connector) RetrieveSystemVersion() (response string, err error) {
panic("operation is not supported yet")
}
func (c *Connector) ResetCertificate(req *certificate.Request, restart bool) (err error) {
panic("operation is not supported yet")
}
func (c *Connector) GetPolicy(name string) (*policy.PolicySpecification, error) {
caName := "\\VED\\Policy\\Certificate Authorities\\TEST CA\\QA Test CA - Server 90 Days"
validityHours := 120
wildcardAllowed := true
serviceGenerated := true
reuseAllowed := false
subjectAltNamesAllowed := true
domain := "venafi.com"
org := "Venafi"
locality := "Salt Lake City"
state := "Utah"
country := "US"
specification := policy.PolicySpecification{
Owners: []string{"amoo"},
Users: []string{"rvela", "malborno"},
Approvers: []string{"rrodrig", "lpresuel"},
Policy: &policy.Policy{
CertificateAuthority: &caName,
Domains: []string{"venafi.com"},
WildcardAllowed: &wildcardAllowed,
MaxValidDays: &validityHours,
Subject: &policy.Subject{
Orgs: []string{"Venafi"},
OrgUnits: []string{"DevOps"},
Localities: []string{"Salt Lake City"},
States: []string{"Utah"},
Countries: []string{"US"},
},
KeyPair: &policy.KeyPair{
KeyTypes: []string{"RSA"},
RsaKeySizes: []int{3072},
ServiceGenerated: &serviceGenerated,
ReuseAllowed: &reuseAllowed,
EllipticCurves: []string{"P384"},
},
SubjectAltNames: &policy.SubjectAltNames{
DnsAllowed: &subjectAltNamesAllowed,
IpAllowed: &subjectAltNamesAllowed,
EmailAllowed: &subjectAltNamesAllowed,
UriAllowed: &subjectAltNamesAllowed,
UpnAllowed: &subjectAltNamesAllowed,
},
},
Default: &policy.Default{
Domain: &domain,
Subject: &policy.DefaultSubject{
Org: &org,
OrgUnits: []string{"DevOps"},
Locality: &locality,
State: &state,
Country: &country,
},
KeyPair: &policy.DefaultKeyPair{
KeyType: nil,
RsaKeySize: nil,
EllipticCurve: nil,
ServiceGenerated: nil,
},
},
}
return &specification, nil
}
func (c *Connector) SetPolicy(name string, ps *policy.PolicySpecification) (string, error) {
return "OK", nil
}
func NewConnector(verbose bool, trust *x509.CertPool) *Connector {
c := Connector{verbose: verbose}
return &c
}
func (c *Connector) GetType() endpoint.ConnectorType {
return endpoint.ConnectorTypeFake
}
func (c *Connector) SetZone(z string) {
}
func (c *Connector) SetUserAgent(_ string) {
}
func (c *Connector) Ping() (err error) {
return
}
func (c *Connector) Authenticate(auth *endpoint.Authentication) (err error) {
return
}
type fakeRequestID struct {
Req *certificate.Request
CSR string
}
func validateRequest(req *certificate.Request) error {
if strings.HasSuffix(req.Subject.CommonName, "venafi.com") {
return fmt.Errorf("%s certificate cannot be requested", req.Subject.CommonName)
}
return nil
}
func (c *Connector) RequestCertificate(req *certificate.Request) (requestID string, err error) {
err = validateRequest(req)
if err != nil {
return "", fmt.Errorf("certificate request validation fail: %s", err)
}
var fakeRequest = fakeRequestID{}
switch req.CsrOrigin {
case certificate.LocalGeneratedCSR, certificate.UserProvidedCSR:
// should return CSR as requestID payload
fakeRequest.CSR = base64.StdEncoding.EncodeToString(req.GetCSR())
case certificate.ServiceGeneratedCSR:
// should return certificate.Request as requestID payload
fakeRequest.Req = req
default:
return "", fmt.Errorf("Unexpected option in PrivateKeyOrigin")
}
js, err := json.Marshal(fakeRequest)
if err != nil {
return "", fmt.Errorf("failed to json.Marshal(certificate.Request: %v)", req)
}
pickupID := base64.StdEncoding.EncodeToString(js)
req.PickupID = pickupID
return pickupID, nil
}
// SynchronousRequestCertificate It's not supported yet
func (c *Connector) SynchronousRequestCertificate(_ *certificate.Request) (certificates *certificate.PEMCollection, err error) {
panic("operation is not supported yet")
}
// SupportSynchronousRequestCertificate returns if the connector support synchronous calls to request a certificate.
func (c *Connector) SupportSynchronousRequestCertificate() bool {
return false
}
func issueCertificate(csr *x509.CertificateRequest) ([]byte, error) {
limit := new(big.Int).Lsh(big.NewInt(1), 128)
serial, _ := rand.Int(rand.Reader, limit)
if "disabled" == "CSR pre-precessing for HTTPS" {
csr.DNSNames = append(csr.DNSNames, csr.Subject.CommonName)
nameSet := map[string]bool{}
for _, name := range csr.DNSNames {
nameSet[name] = true
}
uniqNames := []string{}
for name := range nameSet {
uniqNames = append(uniqNames, name)
}
csr.DNSNames = uniqNames
}
certRequest := x509.Certificate{
SerialNumber: serial,
}
certRequest.Subject = csr.Subject
certRequest.ExtraExtensions = csr.Extensions // this will include any SANs including UPN
certRequest.SignatureAlgorithm = x509.SHA256WithRSA
certRequest.PublicKeyAlgorithm = csr.PublicKeyAlgorithm
certRequest.ExtKeyUsage = []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth}
certRequest.NotBefore = time.Now().Add(-24 * time.Hour)
certRequest.NotAfter = certRequest.NotBefore.AddDate(0, 0, 90)
certRequest.IsCA = false
certRequest.BasicConstraintsValid = true
// ku := x509.KeyUsageKeyEncipherment|x509.KeyUsageDigitalSignature|x509.KeyUsageCertSign
derBytes, err := x509.CreateCertificate(rand.Reader, &certRequest, caCrt, csr.PublicKey, caKey)
if err != nil {
return nil, err
}
res := pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: derBytes})
return res, nil
}
func (c *Connector) RetrieveCertificate(req *certificate.Request) (pcc *certificate.PEMCollection, err error) {
bytes, err := base64.StdEncoding.DecodeString(req.PickupID)
if err != nil {
return nil, fmt.Errorf("Test-mode: could not parse requestID as base64 encoded fakeRequestID structure")
}
var fakeRequest = &fakeRequestID{}
err = json.Unmarshal(bytes, fakeRequest)
if err != nil {
return nil, fmt.Errorf("failed to json.Unmarshal(fakeRequestId): %s\n", err)
}
var csrPEMbytes []byte
var pk crypto.Signer
if fakeRequest.CSR != "" {
csrPEMbytes, err = base64.StdEncoding.DecodeString(fakeRequest.CSR)
if err != nil {
return nil, err
}
} else {
req := fakeRequest.Req
err = req.GeneratePrivateKey()
if err != nil {
return
}
req.DNSNames = append(req.DNSNames, "fake-service-generated."+req.Subject.CommonName)
err = req.GenerateCSR()
if err != nil {
return
}
csrPEMbytes = req.GetCSR()
pk = req.PrivateKey
}
var (
csrBlock *pem.Block
csr *x509.CertificateRequest
)
csrBlock, _ = pem.Decode([]byte(csrPEMbytes))
if csrBlock == nil || !strings.HasSuffix(csrBlock.Type, "CERTIFICATE REQUEST") {
return nil, fmt.Errorf("Test-mode: could not parse requestID as base64 encoded certificate request block")
}
csr, err = x509.ParseCertificateRequest(csrBlock.Bytes)
if err != nil {
return nil, err
}
cert_pem, err := issueCertificate(csr)
if err != nil {
return nil, err
}
var certBytes []byte
switch req.ChainOption {
case certificate.ChainOptionRootFirst:
certBytes = append([]byte(CaCertPEM+"\n"), cert_pem...)
default:
certBytes = append(cert_pem, []byte(CaCertPEM)...)
}
pcc, err = certificate.PEMCollectionFromBytes(certBytes, req.ChainOption)
if err != nil {
return nil, err
}
// no key password -- no key
if pk != nil && req.KeyPassword != "" {
err = pcc.AddPrivateKey(pk, []byte(req.KeyPassword))
if err != nil {
return
}
}
err = req.CheckCertificate(pcc.Certificate)
return
}
// RevokeCertificate attempts to revoke the certificate
func (c *Connector) RevokeCertificate(revReq *certificate.RevocationRequest) (err error) {
return fmt.Errorf("revocation is not supported in -test-mode")
}
// RetireCertificate attempts to retire the certificate
func (c *Connector) RetireCertificate(revReq *certificate.RetireRequest) (err error) {
return fmt.Errorf("retire is not supported in -test-mode")
}
func (c *Connector) ReadZoneConfiguration() (config *endpoint.ZoneConfiguration, err error) {
config = endpoint.NewZoneConfiguration()
policy, err := c.ReadPolicyConfiguration()
config.Policy = *policy
return
}
// RenewCertificate attempts to renew the certificate
func (c *Connector) RenewCertificate(revReq *certificate.RenewalRequest) (requestID string, err error) {
return "", fmt.Errorf("renew is not supported in -test-mode")
}
func (c *Connector) ImportCertificate(req *certificate.ImportRequest) (*certificate.ImportResponse, error) {
return nil, fmt.Errorf("import is not supported in -test-mode")
}
func (c *Connector) ReadPolicyConfiguration() (policy *endpoint.Policy, err error) {
policy = &endpoint.Policy{
SubjectCNRegexes: []string{".*"},
SubjectORegexes: []string{".*"},
SubjectOURegexes: []string{".*"},
SubjectSTRegexes: []string{".*"},
SubjectLRegexes: []string{".*"},
SubjectCRegexes: []string{".*"},
AllowedKeyConfigurations: []endpoint.AllowedKeyConfiguration{
{KeyType: certificate.KeyTypeRSA, KeySizes: certificate.AllSupportedKeySizes(), KeyCurves: nil},
{KeyType: certificate.KeyTypeECDSA, KeySizes: nil, KeyCurves: certificate.AllSupportedCurves()},
},
DnsSanRegExs: []string{".*"},
IpSanRegExs: []string{".*"},
EmailSanRegExs: []string{".*"},
UriSanRegExs: []string{".*"},
UpnSanRegExs: []string{".*"},
AllowWildcards: true,
AllowKeyReuse: true,
}
return
}
func (c *Connector) GetZonesByParent(parent string) ([]string, error) {
var zones []string
children := []string{"Alpha", "Epsilon", "Eta", "Iota", "Omicron", "Upsilon", "Omega"}
for _, child := range children {
zone := fmt.Sprintf("%s\\%s", parent, child)
zones = append(zones, zone)
}
return zones, nil
}
func (c *Connector) SetHTTPClient(client *http.Client) {
}
func (c *Connector) ListCertificates(filter endpoint.Filter) ([]certificate.CertificateInfo, error) {
return nil, nil
}
func (c *Connector) WriteLog(logReq *endpoint.LogRequest) (err error) {
return fmt.Errorf("Logging is not supported in -test-mode")
}