open-consul/agent/proxycfg-glue/peering_list.go

62 lines
2.0 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package proxycfgglue
import (
"context"
"github.com/hashicorp/go-memdb"
"github.com/hashicorp/consul/acl"
"github.com/hashicorp/consul/agent/cache"
cachetype "github.com/hashicorp/consul/agent/cache-types"
"github.com/hashicorp/consul/agent/consul/watch"
"github.com/hashicorp/consul/agent/proxycfg"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/proto/private/pbpeering"
)
// CachePeeringList satisfies the proxycfg.PeeringList interface by sourcing
// data from the agent cache.
func CachePeeringList(c *cache.Cache) proxycfg.PeeringList {
return &cacheProxyDataSource[*cachetype.PeeringListRequest]{c, cachetype.PeeringListName}
}
// ServerPeeringList satisfies the proxycfg.PeeringList interface by sourcing
// data from a blocking query against the server's state store.
func ServerPeeringList(deps ServerDataSourceDeps) proxycfg.PeeringList {
return &serverPeeringList{deps}
}
type serverPeeringList struct {
deps ServerDataSourceDeps
}
func (s *serverPeeringList) Notify(ctx context.Context, req *cachetype.PeeringListRequest, correlationID string, ch chan<- proxycfg.UpdateEvent) error {
entMeta := structs.DefaultEnterpriseMetaInPartition(req.Request.Partition)
return watch.ServerLocalNotify(ctx, correlationID, s.deps.GetStore,
func(ws memdb.WatchSet, store Store) (uint64, *pbpeering.PeeringListResponse, error) {
var authzCtx acl.AuthorizerContext
authz, err := s.deps.ACLResolver.ResolveTokenAndDefaultMeta(req.Token, entMeta, &authzCtx)
if err != nil {
return 0, nil, err
}
if err := authz.ToAllowAuthorizer().PeeringReadAllowed(&authzCtx); err != nil {
return 0, nil, err
}
index, peerings, err := store.PeeringList(ws, *entMeta)
if err != nil {
return 0, nil, err
}
return index, &pbpeering.PeeringListResponse{
Index: index,
Peerings: peerings,
}, nil
},
dispatchBlockingQueryUpdate[*pbpeering.PeeringListResponse](ch),
)
}