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move acme config into own file

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This commit is contained in:
6543 2023-02-11 01:13:13 +01:00
parent c261aed9a9
commit e0b1aff266
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2 changed files with 99 additions and 91 deletions
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99
server/certificates/acme_config.go Normal file
View file

@ -0,0 +1,99 @@
package certificates
import (
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rand"
"encoding/json"
"os"
"github.com/go-acme/lego/v4/certcrypto"
"github.com/go-acme/lego/v4/lego"
"github.com/go-acme/lego/v4/registration"
"github.com/rs/zerolog/log"
)
func setupAcmeConfig(configFile, acmeAPI, acmeMail, acmeEabHmac, acmeEabKID string, acmeAcceptTerms bool) (*lego.Config, error) {
var myAcmeAccount AcmeAccount
var myAcmeConfig *lego.Config
if account, err := os.ReadFile(configFile); err == nil {
log.Info().Msgf("found existing acme account config file '%s'", configFile)
if err := json.Unmarshal(account, &myAcmeAccount); err != nil {
return nil, err
}
myAcmeAccount.Key, err = certcrypto.ParsePEMPrivateKey([]byte(myAcmeAccount.KeyPEM))
if err != nil {
return nil, err
}
myAcmeConfig = lego.NewConfig(&myAcmeAccount)
myAcmeConfig.CADirURL = acmeAPI
myAcmeConfig.Certificate.KeyType = certcrypto.RSA2048
// Validate Config
_, err := lego.NewClient(myAcmeConfig)
if err != nil {
// TODO: should we fail hard instead?
log.Error().Err(err).Msg("Can't create ACME client, continuing with mock certs only")
}
return myAcmeConfig, nil
} else if !os.IsNotExist(err) {
return nil, err
}
log.Info().Msgf("no existing acme account config found, try to create a new one")
privateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
if err != nil {
return nil, err
}
myAcmeAccount = AcmeAccount{
Email: acmeMail,
Key: privateKey,
KeyPEM: string(certcrypto.PEMEncode(privateKey)),
}
myAcmeConfig = lego.NewConfig(&myAcmeAccount)
myAcmeConfig.CADirURL = acmeAPI
myAcmeConfig.Certificate.KeyType = certcrypto.RSA2048
tempClient, err := lego.NewClient(myAcmeConfig)
if err != nil {
log.Error().Err(err).Msg("Can't create ACME client, continuing with mock certs only")
} else {
// accept terms & log in to EAB
if acmeEabKID == "" || acmeEabHmac == "" {
reg, err := tempClient.Registration.Register(registration.RegisterOptions{TermsOfServiceAgreed: acmeAcceptTerms})
if err != nil {
log.Error().Err(err).Msg("Can't register ACME account, continuing with mock certs only")
} else {
myAcmeAccount.Registration = reg
}
} else {
reg, err := tempClient.Registration.RegisterWithExternalAccountBinding(registration.RegisterEABOptions{
TermsOfServiceAgreed: acmeAcceptTerms,
Kid: acmeEabKID,
HmacEncoded: acmeEabHmac,
})
if err != nil {
log.Error().Err(err).Msg("Can't register ACME account, continuing with mock certs only")
} else {
myAcmeAccount.Registration = reg
}
}
if myAcmeAccount.Registration != nil {
acmeAccountJSON, err := json.Marshal(myAcmeAccount)
if err != nil {
log.Error().Err(err).Msg("json.Marshalfailed, waiting for manual restart to avoid rate limits")
select {}
}
log.Info().Msgf("new acme account created. write to config file '%s'", configFile)
err = os.WriteFile(configFile, acmeAccountJSON, 0o600)
if err != nil {
log.Error().Err(err).Msg("os.WriteFile failed, waiting for manual restart to avoid rate limits")
select {}
}
}
}
return myAcmeConfig, nil
}

91
server/certificates/certificates.go
View file

@ -2,15 +2,10 @@ package certificates
import (
"context"
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rand"
"crypto/tls"
"crypto/x509"
"encoding/json"
"errors"
"fmt"
"os"
"strconv"
"strings"
"time"
@ -20,7 +15,6 @@ import (
"github.com/go-acme/lego/v4/challenge"
"github.com/go-acme/lego/v4/challenge/tlsalpn01"
"github.com/go-acme/lego/v4/lego"
"github.com/go-acme/lego/v4/registration"
"github.com/reugn/equalizer"
"github.com/rs/zerolog/log"
@ -331,91 +325,6 @@ func (c *AcmeClient) obtainCert(acmeClient *lego.Client, domains []string, renew
return &tlsCertificate, nil
}
func setupAcmeConfig(configFile, acmeAPI, acmeMail, acmeEabHmac, acmeEabKID string, acmeAcceptTerms bool) (*lego.Config, error) {
var myAcmeAccount AcmeAccount
var myAcmeConfig *lego.Config
if account, err := os.ReadFile(configFile); err == nil {
log.Info().Msgf("found existing acme account config file '%s'", configFile)
if err := json.Unmarshal(account, &myAcmeAccount); err != nil {
return nil, err
}
myAcmeAccount.Key, err = certcrypto.ParsePEMPrivateKey([]byte(myAcmeAccount.KeyPEM))
if err != nil {
return nil, err
}
myAcmeConfig = lego.NewConfig(&myAcmeAccount)
myAcmeConfig.CADirURL = acmeAPI
myAcmeConfig.Certificate.KeyType = certcrypto.RSA2048
// Validate Config
_, err := lego.NewClient(myAcmeConfig)
if err != nil {
// TODO: should we fail hard instead?
log.Error().Err(err).Msg("Can't create ACME client, continuing with mock certs only")
}
return myAcmeConfig, nil
} else if !os.IsNotExist(err) {
return nil, err
}
log.Info().Msgf("no existing acme account config found, try to create a new one")
privateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
if err != nil {
return nil, err
}
myAcmeAccount = AcmeAccount{
Email: acmeMail,
Key: privateKey,
KeyPEM: string(certcrypto.PEMEncode(privateKey)),
}
myAcmeConfig = lego.NewConfig(&myAcmeAccount)
myAcmeConfig.CADirURL = acmeAPI
myAcmeConfig.Certificate.KeyType = certcrypto.RSA2048
tempClient, err := lego.NewClient(myAcmeConfig)
if err != nil {
log.Error().Err(err).Msg("Can't create ACME client, continuing with mock certs only")
} else {
// accept terms & log in to EAB
if acmeEabKID == "" || acmeEabHmac == "" {
reg, err := tempClient.Registration.Register(registration.RegisterOptions{TermsOfServiceAgreed: acmeAcceptTerms})
if err != nil {
log.Error().Err(err).Msg("Can't register ACME account, continuing with mock certs only")
} else {
myAcmeAccount.Registration = reg
}
} else {
reg, err := tempClient.Registration.RegisterWithExternalAccountBinding(registration.RegisterEABOptions{
TermsOfServiceAgreed: acmeAcceptTerms,
Kid: acmeEabKID,
HmacEncoded: acmeEabHmac,
})
if err != nil {
log.Error().Err(err).Msg("Can't register ACME account, continuing with mock certs only")
} else {
myAcmeAccount.Registration = reg
}
}
if myAcmeAccount.Registration != nil {
acmeAccountJSON, err := json.Marshal(myAcmeAccount)
if err != nil {
log.Error().Err(err).Msg("json.Marshalfailed, waiting for manual restart to avoid rate limits")
select {}
}
log.Info().Msgf("new acme account created. write to config file '%s'", configFile)
err = os.WriteFile(configFile, acmeAccountJSON, 0o600)
if err != nil {
log.Error().Err(err).Msg("os.WriteFile failed, waiting for manual restart to avoid rate limits")
select {}
}
}
}
return myAcmeConfig, nil
}
func SetupCertificates(mainDomainSuffix string, acmeClient *AcmeClient, certDB database.CertDB) error {
// getting main cert before ACME account so that we can fail here without hitting rate limits
mainCertBytes, err := certDB.Get(mainDomainSuffix)