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Merge remote-tracking branch 'upstream/main' into issue115

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6543 2023-02-14 03:16:52 +01:00
commit c5040b622d
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15 changed files with 241 additions and 115 deletions
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2
server/certificates/acme_config.go
View file

@ -14,6 +14,8 @@ import (
"github.com/rs/zerolog/log"
)
const challengePath = "/.well-known/acme-challenge/"
func setupAcmeConfig(configFile, acmeAPI, acmeMail, acmeEabHmac, acmeEabKID string, acmeAcceptTerms bool) (*lego.Config, error) {
var myAcmeAccount AcmeAccount
var myAcmeConfig *lego.Config

19
server/certificates/cached_challengers.go
View file

@ -1,11 +1,15 @@
package certificates
import (
"net/http"
"strings"
"time"
"github.com/go-acme/lego/v4/challenge"
"codeberg.org/codeberg/pages/server/cache"
"codeberg.org/codeberg/pages/server/context"
"codeberg.org/codeberg/pages/server/utils"
)
type AcmeTLSChallengeProvider struct {
@ -39,3 +43,18 @@ func (a AcmeHTTPChallengeProvider) CleanUp(domain, token, _ string) error {
a.challengeCache.Remove(domain + "/" + token)
return nil
}
func SetupHTTPACMEChallengeServer(challengeCache cache.SetGetKey) http.HandlerFunc {
return func(w http.ResponseWriter, req *http.Request) {
ctx := context.New(w, req)
if strings.HasPrefix(ctx.Path(), challengePath) {
challenge, ok := challengeCache.Get(utils.TrimHostPort(ctx.Host()) + "/" + strings.TrimPrefix(ctx.Path(), challengePath))
if !ok || challenge == nil {
ctx.String("no challenge for this token", http.StatusNotFound)
}
ctx.String(challenge.(string))
} else {
ctx.Redirect("https://"+ctx.Host()+ctx.Path(), http.StatusMovedPermanently)
}
}
}

43
server/certificates/certificates.go
View file

@ -37,22 +37,23 @@ func TLSConfig(mainDomainSuffix string,
return &tls.Config{
// check DNS name & get certificate from Let's Encrypt
GetCertificate: func(info *tls.ClientHelloInfo) (*tls.Certificate, error) {
sni := strings.ToLower(strings.TrimSpace(info.ServerName))
if len(sni) < 1 {
return nil, errors.New("missing sni")
domain := strings.ToLower(strings.TrimSpace(info.ServerName))
if len(domain) < 1 {
return nil, errors.New("missing domain info via SNI (RFC 4366, Section 3.1)")
}
// https request init is actually a acme challenge
if info.SupportedProtos != nil {
for _, proto := range info.SupportedProtos {
if proto != tlsalpn01.ACMETLS1Protocol {
continue
}
challenge, ok := challengeCache.Get(sni)
challenge, ok := challengeCache.Get(domain)
if !ok {
return nil, errors.New("no challenge for this domain")
}
cert, err := tlsalpn01.ChallengeCert(sni, challenge.(string))
cert, err := tlsalpn01.ChallengeCert(domain, challenge.(string))
if err != nil {
return nil, err
}
@ -62,22 +63,22 @@ func TLSConfig(mainDomainSuffix string,
targetOwner := ""
mayObtainCert := true
if strings.HasSuffix(sni, mainDomainSuffix) || strings.EqualFold(sni, mainDomainSuffix[1:]) {
if strings.HasSuffix(domain, mainDomainSuffix) || strings.EqualFold(domain, mainDomainSuffix[1:]) {
// deliver default certificate for the main domain (*.codeberg.page)
sni = mainDomainSuffix
domain = mainDomainSuffix
} else {
var targetRepo, targetBranch string
targetOwner, targetRepo, targetBranch = dnsutils.GetTargetFromDNS(sni, mainDomainSuffix, firstDefaultBranch, dnsLookupCache)
targetOwner, targetRepo, targetBranch = dnsutils.GetTargetFromDNS(domain, mainDomainSuffix, firstDefaultBranch, dnsLookupCache)
if targetOwner == "" {
// DNS not set up, return main certificate to redirect to the docs
sni = mainDomainSuffix
domain = mainDomainSuffix
} else {
targetOpt := &upstream.Options{
TargetOwner: targetOwner,
TargetRepo: targetRepo,
TargetBranch: targetBranch,
}
_, valid := targetOpt.CheckCanonicalDomain(giteaClient, sni, mainDomainSuffix, canonicalDomainCache)
_, valid := targetOpt.CheckCanonicalDomain(giteaClient, domain, mainDomainSuffix, canonicalDomainCache)
if !valid {
// We shouldn't obtain a certificate when we cannot check if the
// repository has specified this domain in the `.domains` file.
@ -86,30 +87,34 @@ func TLSConfig(mainDomainSuffix string,
}
}
if tlsCertificate, ok := keyCache.Get(sni); ok {
if tlsCertificate, ok := keyCache.Get(domain); ok {
// we can use an existing certificate object
return tlsCertificate.(*tls.Certificate), nil
}
var tlsCertificate *tls.Certificate
var err error
if tlsCertificate, err = acmeClient.retrieveCertFromDB(sni, mainDomainSuffix, false, certDB); err != nil {
// request a new certificate
if strings.EqualFold(sni, mainDomainSuffix) {
if tlsCertificate, err = acmeClient.retrieveCertFromDB(domain, mainDomainSuffix, false, certDB); err != nil {
if !errors.Is(err, database.ErrNotFound) {
return nil, err
}
// we could not find a cert in db, request a new certificate
// first check if we are allowed to obtain a cert for this domain
if strings.EqualFold(domain, mainDomainSuffix) {
return nil, errors.New("won't request certificate for main domain, something really bad has happened")
}
if !mayObtainCert {
return nil, fmt.Errorf("won't request certificate for %q", sni)
return nil, fmt.Errorf("won't request certificate for %q", domain)
}
tlsCertificate, err = acmeClient.obtainCert(acmeClient.legoClient, []string{sni}, nil, targetOwner, false, mainDomainSuffix, certDB)
tlsCertificate, err = acmeClient.obtainCert(acmeClient.legoClient, []string{domain}, nil, targetOwner, false, mainDomainSuffix, certDB)
if err != nil {
return nil, err
}
}
if err := keyCache.Set(sni, tlsCertificate, 15*time.Minute); err != nil {
if err := keyCache.Set(domain, tlsCertificate, 15*time.Minute); err != nil {
return nil, err
}
return tlsCertificate, nil
@ -165,7 +170,7 @@ func (c *AcmeClient) retrieveCertFromDB(sni, mainDomainSuffix string, useDnsProv
if !strings.EqualFold(sni, mainDomainSuffix) {
tlsCertificate.Leaf, err = x509.ParseCertificate(tlsCertificate.Certificate[0])
if err != nil {
return nil, fmt.Errorf("error parsin leaf tlsCert: %w", err)
return nil, fmt.Errorf("error parsing leaf tlsCert: %w", err)
}
// renew certificates 7 days before they expire

6
server/certificates/mock_test.go
View file

@ -4,13 +4,15 @@ import (
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/mock"
"codeberg.org/codeberg/pages/server/database"
)
func TestMockCert(t *testing.T) {
db, err := database.NewTmpDB()
assert.NoError(t, err)
db := database.NewMockCertDB(t)
db.Mock.On("Put", mock.Anything, mock.Anything).Return(nil)
cert, err := mockCert("example.com", "some error msg", "codeberg.page", db)
assert.NoError(t, err)
if assert.NotEmpty(t, cert) {