93 lines
3.2 KiB
Go
93 lines
3.2 KiB
Go
package acl
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
|
|
"google.golang.org/grpc"
|
|
"google.golang.org/grpc/codes"
|
|
"google.golang.org/grpc/status"
|
|
|
|
"github.com/hashicorp/consul/acl"
|
|
"github.com/hashicorp/consul/agent/consul/auth"
|
|
external "github.com/hashicorp/consul/agent/grpc-external"
|
|
"github.com/hashicorp/consul/proto-public/pbacl"
|
|
)
|
|
|
|
// Login exchanges the presented bearer token for a Consul ACL token using a
|
|
// configured auth method.
|
|
func (s *Server) Login(ctx context.Context, req *pbacl.LoginRequest) (*pbacl.LoginResponse, error) {
|
|
logger := s.Logger.Named("login").With("request_id", external.TraceID())
|
|
logger.Trace("request received")
|
|
|
|
if err := s.requireACLsEnabled(logger); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
entMeta := acl.NewEnterpriseMetaWithPartition(req.Partition, req.Namespace)
|
|
|
|
if err := s.ValidateEnterpriseRequest(&entMeta, true); err != nil {
|
|
logger.Error("error during enterprise request validation", "error", err.Error())
|
|
return nil, status.Errorf(codes.Internal, err.Error())
|
|
}
|
|
|
|
// Forward request to leader in the correct datacenter.
|
|
var rsp *pbacl.LoginResponse
|
|
handled, err := s.forwardWriteDC(req.Datacenter, func(conn *grpc.ClientConn) error {
|
|
var err error
|
|
rsp, err = pbacl.NewACLServiceClient(conn).Login(ctx, req)
|
|
return err
|
|
}, logger)
|
|
if handled || err != nil {
|
|
return rsp, err
|
|
}
|
|
|
|
// This is also validated by the TokenWriter, but doing it early saves any
|
|
// work done by the validator (e.g. roundtrip to the Kubernetes API server).
|
|
if err := s.requireLocalTokens(logger); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
authMethod, validator, err := s.LoadAuthMethod(req.AuthMethod, &entMeta)
|
|
switch {
|
|
case errors.Is(err, acl.ErrNotFound):
|
|
return nil, status.Errorf(codes.InvalidArgument, "auth method %q not found", req.AuthMethod)
|
|
case err != nil:
|
|
logger.Error("failed to load auth method", "error", err.Error())
|
|
return nil, status.Error(codes.Internal, "failed to load auth method")
|
|
}
|
|
|
|
verifiedIdentity, err := validator.ValidateLogin(ctx, req.BearerToken)
|
|
if err != nil {
|
|
// TODO(agentless): errors returned from validators aren't standardized so
|
|
// it's hard to tell whether validation failed because of an invalid bearer
|
|
// token or something internal/transient. We currently return Unauthenticated
|
|
// for all errors because it's the most likely, but we should make validators
|
|
// return a typed or sentinel error instead.
|
|
logger.Error("failed to validate login", "error", err.Error())
|
|
return nil, status.Error(codes.Unauthenticated, err.Error())
|
|
}
|
|
|
|
description, err := auth.BuildTokenDescription("token created via login", req.Meta)
|
|
if err != nil {
|
|
logger.Error("failed to build token description", "error", err.Error())
|
|
return nil, status.Error(codes.Internal, err.Error())
|
|
}
|
|
|
|
token, err := s.NewLogin().TokenForVerifiedIdentity(verifiedIdentity, authMethod, description)
|
|
switch {
|
|
case acl.IsErrPermissionDenied(err):
|
|
return nil, status.Error(codes.PermissionDenied, err.Error())
|
|
case err != nil:
|
|
logger.Error("failed to create token", "error", err.Error())
|
|
return nil, status.Error(codes.Internal, "failed to create token")
|
|
}
|
|
|
|
return &pbacl.LoginResponse{
|
|
Token: &pbacl.LoginToken{
|
|
AccessorId: token.AccessorID,
|
|
SecretId: token.SecretID,
|
|
},
|
|
}, nil
|
|
}
|