Files
metacrypt/internal/grpcserver/auth.go
Kyle Isom 65c92fe5ec Add audit logging for all mutating gRPC operations
Log Info-level audit events on success for:
- system: Init, Unseal, Seal
- auth: Login, Logout
- engine: Mount, Unmount
- policy: CreatePolicy, DeletePolicy
- ca: ImportRoot, CreateIssuer, DeleteIssuer, IssueCert, RenewCert

Each log line includes relevant identifiers (mount, issuer, serial, CN,
SANs, username) so that certificate issuance and other privileged
operations are traceable in the server logs.

Co-authored-by: Junie <junie@jetbrains.com>
2026-03-15 13:11:17 -07:00

64 lines
1.8 KiB
Go

package grpcserver
import (
"context"
"time"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"google.golang.org/protobuf/types/known/timestamppb"
mcias "git.wntrmute.dev/kyle/mcias/clients/go"
pb "git.wntrmute.dev/kyle/metacrypt/gen/metacrypt/v2"
)
type authServer struct {
pb.UnimplementedAuthServiceServer
s *GRPCServer
}
func (as *authServer) Login(_ context.Context, req *pb.LoginRequest) (*pb.LoginResponse, error) {
token, expiresAtStr, err := as.s.auth.Login(req.Username, req.Password, req.TotpCode)
if err != nil {
return nil, status.Error(codes.Unauthenticated, "invalid credentials")
}
var expiresAt *timestamppb.Timestamp
if t, err := time.Parse(time.RFC3339, expiresAtStr); err == nil {
expiresAt = timestamppb.New(t)
}
as.s.logger.Info("audit: login", "username", req.Username)
return &pb.LoginResponse{Token: token, ExpiresAt: expiresAt}, nil
}
func (as *authServer) Logout(ctx context.Context, _ *pb.LogoutRequest) (*pb.LogoutResponse, error) {
token := extractToken(ctx)
client, err := mcias.New(as.s.cfg.MCIAS.ServerURL, mcias.Options{
CACertPath: as.s.cfg.MCIAS.CACert,
Token: token,
})
if err == nil {
_ = as.s.auth.Logout(client)
}
as.s.logger.Info("audit: logout", "username", callerUsername(ctx))
return &pb.LogoutResponse{}, nil
}
func (as *authServer) TokenInfo(ctx context.Context, _ *pb.TokenInfoRequest) (*pb.TokenInfoResponse, error) {
ti := tokenInfoFromContext(ctx)
if ti == nil {
// Shouldn't happen — authInterceptor runs first — but guard anyway.
token := extractToken(ctx)
var err error
ti, err = as.s.auth.ValidateToken(token)
if err != nil {
return nil, status.Error(codes.Unauthenticated, "invalid token")
}
}
return &pb.TokenInfoResponse{
Username: ti.Username,
Roles: ti.Roles,
IsAdmin: ti.IsAdmin,
}, nil
}