72 lines
2.1 KiB
Go
72 lines
2.1 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package acl
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import (
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"context"
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"errors"
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"google.golang.org/grpc"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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"github.com/hashicorp/consul/acl"
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"github.com/hashicorp/consul/agent/consul/auth"
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external "github.com/hashicorp/consul/agent/grpc-external"
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"github.com/hashicorp/consul/proto-public/pbacl"
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)
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// Logout destroys the given ACL token once the caller is done with it.
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func (s *Server) Logout(ctx context.Context, req *pbacl.LogoutRequest) (*pbacl.LogoutResponse, error) {
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logger := s.Logger.Named("logout").With("request_id", external.TraceID())
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logger.Trace("request received")
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if err := s.requireACLsEnabled(logger); err != nil {
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return nil, err
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}
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if req.Token == "" {
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return nil, status.Error(codes.InvalidArgument, "token is required")
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}
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// Forward request to leader in the requested datacenter.
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var rsp *pbacl.LogoutResponse
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handled, err := s.forwardWriteDC(req.Datacenter, func(conn *grpc.ClientConn) error {
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var err error
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rsp, err = pbacl.NewACLServiceClient(conn).Logout(ctx, req)
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return err
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}, logger)
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if handled || err != nil {
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return rsp, err
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}
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if err := s.requireLocalTokens(logger); err != nil {
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return nil, err
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}
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err = s.NewTokenWriter().Delete(req.Token, true)
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switch {
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case errors.Is(err, auth.ErrCannotWriteGlobalToken):
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// Writes to global tokens must be forwarded to the primary DC.
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req.Datacenter = s.PrimaryDatacenter
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_, err = s.forwardWriteDC(s.PrimaryDatacenter, func(conn *grpc.ClientConn) error {
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var err error
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rsp, err = pbacl.NewACLServiceClient(conn).Logout(ctx, req)
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return err
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}, logger)
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return rsp, err
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case errors.Is(err, acl.ErrNotFound):
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// No token? Pretend the delete was successful (for idempotency).
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return &pbacl.LogoutResponse{}, nil
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case errors.Is(err, acl.ErrPermissionDenied):
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return nil, status.Error(codes.PermissionDenied, err.Error())
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case err != nil:
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logger.Error("failed to delete token", "error", err.Error())
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return nil, status.Error(codes.Internal, "failed to delete token")
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}
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return &pbacl.LogoutResponse{}, nil
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}
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