49 lines
1.5 KiB
Go
49 lines
1.5 KiB
Go
package consul
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import (
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"github.com/hashicorp/consul/agent/structs"
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"google.golang.org/grpc"
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"github.com/hashicorp/consul/acl"
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"github.com/hashicorp/consul/agent/consul/stream"
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agentgrpc "github.com/hashicorp/consul/agent/grpc"
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"github.com/hashicorp/consul/agent/rpc/subscribe"
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)
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type subscribeBackend struct {
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srv *Server
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connPool *agentgrpc.ClientConnPool
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}
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// TODO: refactor Resolve methods to an ACLBackend that can be used by all
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// the endpoints.
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func (s subscribeBackend) ResolveTokenAndDefaultMeta(
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token string,
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entMeta *structs.EnterpriseMeta,
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authzContext *acl.AuthorizerContext,
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) (acl.Authorizer, error) {
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return s.srv.ResolveTokenAndDefaultMeta(token, entMeta, authzContext)
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}
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var _ subscribe.Backend = (*subscribeBackend)(nil)
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// Forward requests to a remote datacenter by calling f if the target dc does not
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// match the config. Does nothing but return handled=false if dc is not specified,
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// or if it matches the Datacenter in config.
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//
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// TODO: extract this so that it can be used with other grpc services.
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func (s subscribeBackend) Forward(dc string, f func(*grpc.ClientConn) error) (handled bool, err error) {
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if dc == "" || dc == s.srv.config.Datacenter {
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return false, nil
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}
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conn, err := s.connPool.ClientConn(dc)
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if err != nil {
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return false, err
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}
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return true, f(conn)
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}
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func (s subscribeBackend) Subscribe(req *stream.SubscribeRequest) (*stream.Subscription, error) {
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return s.srv.fsm.State().EventPublisher().Subscribe(req)
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}
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