* validateCertificates(): split the function's code
This commit is contained in:
Simon Zolin
parent
766fbab071
commit
f4a6ca726c
240
control.go
240
control.go
|
|
@ -1078,135 +1078,151 @@ func handleTLSConfigure(w http.ResponseWriter, r *http.Request) {
|
|||
}
|
||||
}
|
||||
|
||||
// Return 0 on success
|
||||
func verifyCertChain(data *tlsConfigStatus, certChain string, serverName string) int {
|
||||
log.Tracef("got certificate: %s", certChain)
|
||||
|
||||
// now do a more extended validation
|
||||
var certs []*pem.Block // PEM-encoded certificates
|
||||
var skippedBytes []string // skipped bytes
|
||||
|
||||
pemblock := []byte(certChain)
|
||||
for {
|
||||
var decoded *pem.Block
|
||||
decoded, pemblock = pem.Decode(pemblock)
|
||||
if decoded == nil {
|
||||
break
|
||||
}
|
||||
if decoded.Type == "CERTIFICATE" {
|
||||
certs = append(certs, decoded)
|
||||
} else {
|
||||
skippedBytes = append(skippedBytes, decoded.Type)
|
||||
}
|
||||
}
|
||||
|
||||
var parsedCerts []*x509.Certificate
|
||||
|
||||
for _, cert := range certs {
|
||||
parsed, err := x509.ParseCertificate(cert.Bytes)
|
||||
if err != nil {
|
||||
data.WarningValidation = fmt.Sprintf("Failed to parse certificate: %s", err)
|
||||
return 1
|
||||
}
|
||||
parsedCerts = append(parsedCerts, parsed)
|
||||
}
|
||||
|
||||
if len(parsedCerts) == 0 {
|
||||
data.WarningValidation = fmt.Sprintf("You have specified an empty certificate")
|
||||
return 1
|
||||
}
|
||||
|
||||
data.ValidCert = true
|
||||
|
||||
// spew.Dump(parsedCerts)
|
||||
|
||||
opts := x509.VerifyOptions{
|
||||
DNSName: serverName,
|
||||
}
|
||||
|
||||
log.Printf("number of certs - %d", len(parsedCerts))
|
||||
if len(parsedCerts) > 1 {
|
||||
// set up an intermediate
|
||||
pool := x509.NewCertPool()
|
||||
for _, cert := range parsedCerts[1:] {
|
||||
log.Printf("got an intermediate cert")
|
||||
pool.AddCert(cert)
|
||||
}
|
||||
opts.Intermediates = pool
|
||||
}
|
||||
|
||||
// TODO: save it as a warning rather than error it out -- shouldn't be a big problem
|
||||
mainCert := parsedCerts[0]
|
||||
_, err := mainCert.Verify(opts)
|
||||
if err != nil {
|
||||
// let self-signed certs through
|
||||
data.WarningValidation = fmt.Sprintf("Your certificate does not verify: %s", err)
|
||||
} else {
|
||||
data.ValidChain = true
|
||||
}
|
||||
// spew.Dump(chains)
|
||||
|
||||
// update status
|
||||
if mainCert != nil {
|
||||
notAfter := mainCert.NotAfter
|
||||
data.Subject = mainCert.Subject.String()
|
||||
data.Issuer = mainCert.Issuer.String()
|
||||
data.NotAfter = notAfter
|
||||
data.NotBefore = mainCert.NotBefore
|
||||
data.DNSNames = mainCert.DNSNames
|
||||
}
|
||||
|
||||
return 0
|
||||
}
|
||||
|
||||
// Return 0 on success
|
||||
func validatePkey(data *tlsConfigStatus, pkey string) int {
|
||||
// now do a more extended validation
|
||||
var key *pem.Block // PEM-encoded certificates
|
||||
var skippedBytes []string // skipped bytes
|
||||
|
||||
// go through all pem blocks, but take first valid pem block and drop the rest
|
||||
pemblock := []byte(pkey)
|
||||
for {
|
||||
var decoded *pem.Block
|
||||
decoded, pemblock = pem.Decode(pemblock)
|
||||
if decoded == nil {
|
||||
break
|
||||
}
|
||||
if decoded.Type == "PRIVATE KEY" || strings.HasSuffix(decoded.Type, " PRIVATE KEY") {
|
||||
key = decoded
|
||||
break
|
||||
} else {
|
||||
skippedBytes = append(skippedBytes, decoded.Type)
|
||||
}
|
||||
}
|
||||
|
||||
if key == nil {
|
||||
data.WarningValidation = "No valid keys were found"
|
||||
return 1
|
||||
}
|
||||
|
||||
// parse the decoded key
|
||||
_, keytype, err := parsePrivateKey(key.Bytes)
|
||||
if err != nil {
|
||||
data.WarningValidation = fmt.Sprintf("Failed to parse private key: %s", err)
|
||||
return 1
|
||||
}
|
||||
|
||||
data.ValidKey = true
|
||||
data.KeyType = keytype
|
||||
return 0
|
||||
}
|
||||
|
||||
/* Process certificate data and its private key.
|
||||
CertificateChain, PrivateKey parameters are optional.
|
||||
All parameters are optional.
|
||||
On error, return partially set object
|
||||
with 'WarningValidation' field containing error description.
|
||||
*/
|
||||
func validateCertificates(CertificateChain, PrivateKey, ServerName string) tlsConfigStatus {
|
||||
var err error
|
||||
func validateCertificates(certChain, pkey, serverName string) tlsConfigStatus {
|
||||
var data tlsConfigStatus
|
||||
|
||||
// check only public certificate separately from the key
|
||||
if CertificateChain != "" {
|
||||
log.Tracef("got certificate: %s", CertificateChain)
|
||||
|
||||
// now do a more extended validation
|
||||
var certs []*pem.Block // PEM-encoded certificates
|
||||
var skippedBytes []string // skipped bytes
|
||||
|
||||
pemblock := []byte(CertificateChain)
|
||||
for {
|
||||
var decoded *pem.Block
|
||||
decoded, pemblock = pem.Decode(pemblock)
|
||||
if decoded == nil {
|
||||
break
|
||||
}
|
||||
if decoded.Type == "CERTIFICATE" {
|
||||
certs = append(certs, decoded)
|
||||
} else {
|
||||
skippedBytes = append(skippedBytes, decoded.Type)
|
||||
}
|
||||
}
|
||||
|
||||
var parsedCerts []*x509.Certificate
|
||||
|
||||
for _, cert := range certs {
|
||||
parsed, err := x509.ParseCertificate(cert.Bytes)
|
||||
if err != nil {
|
||||
data.WarningValidation = fmt.Sprintf("Failed to parse certificate: %s", err)
|
||||
return data
|
||||
}
|
||||
parsedCerts = append(parsedCerts, parsed)
|
||||
}
|
||||
|
||||
if len(parsedCerts) == 0 {
|
||||
data.WarningValidation = fmt.Sprintf("You have specified an empty certificate")
|
||||
if certChain != "" {
|
||||
if verifyCertChain(&data, certChain, serverName) != 0 {
|
||||
return data
|
||||
}
|
||||
|
||||
data.ValidCert = true
|
||||
|
||||
// spew.Dump(parsedCerts)
|
||||
|
||||
opts := x509.VerifyOptions{
|
||||
DNSName: ServerName,
|
||||
}
|
||||
|
||||
log.Printf("number of certs - %d", len(parsedCerts))
|
||||
if len(parsedCerts) > 1 {
|
||||
// set up an intermediate
|
||||
pool := x509.NewCertPool()
|
||||
for _, cert := range parsedCerts[1:] {
|
||||
log.Printf("got an intermediate cert")
|
||||
pool.AddCert(cert)
|
||||
}
|
||||
opts.Intermediates = pool
|
||||
}
|
||||
|
||||
// TODO: save it as a warning rather than error it out -- shouldn't be a big problem
|
||||
mainCert := parsedCerts[0]
|
||||
_, err := mainCert.Verify(opts)
|
||||
if err != nil {
|
||||
// let self-signed certs through
|
||||
data.WarningValidation = fmt.Sprintf("Your certificate does not verify: %s", err)
|
||||
} else {
|
||||
data.ValidChain = true
|
||||
}
|
||||
// spew.Dump(chains)
|
||||
|
||||
// update status
|
||||
if mainCert != nil {
|
||||
notAfter := mainCert.NotAfter
|
||||
data.Subject = mainCert.Subject.String()
|
||||
data.Issuer = mainCert.Issuer.String()
|
||||
data.NotAfter = notAfter
|
||||
data.NotBefore = mainCert.NotBefore
|
||||
data.DNSNames = mainCert.DNSNames
|
||||
}
|
||||
}
|
||||
|
||||
// validate private key (right now the only validation possible is just parsing it)
|
||||
if PrivateKey != "" {
|
||||
// now do a more extended validation
|
||||
var key *pem.Block // PEM-encoded certificates
|
||||
var skippedBytes []string // skipped bytes
|
||||
|
||||
// go through all pem blocks, but take first valid pem block and drop the rest
|
||||
pemblock := []byte(PrivateKey)
|
||||
for {
|
||||
var decoded *pem.Block
|
||||
decoded, pemblock = pem.Decode(pemblock)
|
||||
if decoded == nil {
|
||||
break
|
||||
}
|
||||
if decoded.Type == "PRIVATE KEY" || strings.HasSuffix(decoded.Type, " PRIVATE KEY") {
|
||||
key = decoded
|
||||
break
|
||||
} else {
|
||||
skippedBytes = append(skippedBytes, decoded.Type)
|
||||
}
|
||||
}
|
||||
|
||||
if key == nil {
|
||||
data.WarningValidation = "No valid keys were found"
|
||||
if pkey != "" {
|
||||
if validatePkey(&data, pkey) != 0 {
|
||||
return data
|
||||
}
|
||||
|
||||
// parse the decoded key
|
||||
_, keytype, err := parsePrivateKey(key.Bytes)
|
||||
if err != nil {
|
||||
data.WarningValidation = fmt.Sprintf("Failed to parse private key: %s", err)
|
||||
return data
|
||||
}
|
||||
|
||||
data.ValidKey = true
|
||||
data.KeyType = keytype
|
||||
}
|
||||
|
||||
// if both are set, validate both in unison
|
||||
if PrivateKey != "" && CertificateChain != "" {
|
||||
_, err = tls.X509KeyPair([]byte(CertificateChain), []byte(PrivateKey))
|
||||
if pkey != "" && certChain != "" {
|
||||
_, err := tls.X509KeyPair([]byte(certChain), []byte(pkey))
|
||||
if err != nil {
|
||||
data.WarningValidation = fmt.Sprintf("Invalid certificate or key: %s", err)
|
||||
return data
|
||||
|
|
|
|||
Loading…
Reference in New Issue