Files
s3/weed/notification/kafka/kafka_sasl_tls.go
zooqueen dd74d3e6d6 Replace AGPL MinIO fork with Apache-2.0 SeaweedFS fork; rebrand CLI weed->s3
hanzoai/s3 was an AGPL-3.0 MinIO fork whose network-copyleft blocks embedding
and reselling as a managed service. Replace it wholesale with a fork of
SeaweedFS (github.com/seaweedfs/seaweedfs, Apache-2.0, Go) which ships a
built-in S3 gateway + Filer.

- License: AGPL-3.0 -> Apache-2.0 (upstream LICENSE kept verbatim, incl.
  "Copyright 2025 Chris Lu"); NOTICE added crediting SeaweedFS. No AGPL/BUSL/
  SSPL/GPL or enterprise ("ee") files remain.
- Module: go.mod path set to github.com/hanzoai/s3 with a self-replace
  (replace github.com/seaweedfs/seaweedfs => ./) so the ~1800 internal Go files
  keep their upstream import paths with zero churn. Internal identifiers and
  import paths are intentionally NOT renamed.
- CLI rebrand: the binary is built as `s3` (was `weed`); root usage, per-command
  help/usage/flag strings, shell autocomplete program name, and the product name
  in CLI output now read "Hanzo S3" / `s3`. Users never see `weed`.
  (e.g. `s3 server`, `s3 filer`, `s3 master`, `s3 volume`, `s3 s3`, `s3 mount`.)
- Build: `make` (or `go build -o s3 ./weed`) builds the `s3` binary green;
  `cmd/weed-db` and `cmd/weed-sql` also build; `go vet ./weed/command/` clean.
- README/LLM.md rewritten for Hanzo S3; AGENTS.md/CLAUDE.md symlinks preserved.
- Dropped a 33MB prebuilt Mach-O `stress` binary upstream had committed; `.gitignore`
  updated to ignore the `s3` build output.
2026-06-18 23:41:25 -07:00

113 lines
2.9 KiB
Go

package kafka
import (
"crypto/tls"
"crypto/x509"
"fmt"
"os"
"strings"
"github.com/Shopify/sarama"
"github.com/xdg-go/scram"
)
// SASLTLSConfig holds SASL and TLS configuration for Kafka connections.
type SASLTLSConfig struct {
SASLEnabled bool
SASLMechanism string
SASLUsername string
SASLPassword string
TLSEnabled bool
TLSCACert string
TLSClientCert string
TLSClientKey string
TLSInsecureSkipVerify bool
}
// ConfigureSASLTLS applies SASL and TLS settings to a sarama config.
func ConfigureSASLTLS(config *sarama.Config, st SASLTLSConfig) error {
if st.SASLEnabled {
config.Net.SASL.Enable = true
config.Net.SASL.User = st.SASLUsername
config.Net.SASL.Password = st.SASLPassword
mechanism := strings.ToUpper(st.SASLMechanism)
switch mechanism {
case "PLAIN", "":
config.Net.SASL.Mechanism = sarama.SASLTypePlaintext
case "SCRAM-SHA-256":
config.Net.SASL.Mechanism = sarama.SASLTypeSCRAMSHA256
config.Net.SASL.SCRAMClientGeneratorFunc = func() sarama.SCRAMClient {
return &scramClient{HashGeneratorFcn: scram.SHA256}
}
case "SCRAM-SHA-512":
config.Net.SASL.Mechanism = sarama.SASLTypeSCRAMSHA512
config.Net.SASL.SCRAMClientGeneratorFunc = func() sarama.SCRAMClient {
return &scramClient{HashGeneratorFcn: scram.SHA512}
}
default:
return fmt.Errorf("unsupported SASL mechanism: %s", mechanism)
}
}
if st.TLSEnabled {
if (st.TLSClientCert == "") != (st.TLSClientKey == "") {
return fmt.Errorf("both tls_client_cert and tls_client_key must be provided for mTLS, or neither")
}
tlsConfig := &tls.Config{
MinVersion: tls.VersionTLS12,
InsecureSkipVerify: st.TLSInsecureSkipVerify,
}
if st.TLSCACert != "" {
caCert, err := os.ReadFile(st.TLSCACert)
if err != nil {
return fmt.Errorf("failed to read CA certificate: %w", err)
}
caCertPool := x509.NewCertPool()
if !caCertPool.AppendCertsFromPEM(caCert) {
return fmt.Errorf("failed to parse CA certificate")
}
tlsConfig.RootCAs = caCertPool
}
if st.TLSClientCert != "" && st.TLSClientKey != "" {
cert, err := tls.LoadX509KeyPair(st.TLSClientCert, st.TLSClientKey)
if err != nil {
return fmt.Errorf("failed to load client certificate/key: %w", err)
}
tlsConfig.Certificates = []tls.Certificate{cert}
}
config.Net.TLS.Enable = true
config.Net.TLS.Config = tlsConfig
}
return nil
}
// scramClient implements the sarama.SCRAMClient interface.
type scramClient struct {
*scram.ClientConversation
scram.HashGeneratorFcn
}
func (c *scramClient) Begin(userName, password, authzID string) (err error) {
client, err := c.HashGeneratorFcn.NewClient(userName, password, authzID)
if err != nil {
return err
}
c.ClientConversation = client.NewConversation()
return nil
}
func (c *scramClient) Step(challenge string) (string, error) {
return c.ClientConversation.Step(challenge)
}
func (c *scramClient) Done() bool {
return c.ClientConversation.Done()
}