tracker/server/store/middleware/client/whitelist.go

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// Copyright 2016 The Chihaya Authors. All rights reserved.
// Use of this source code is governed by the BSD 2-Clause license,
// which can be found in the LICENSE file.
package ip
import (
"github.com/chihaya/chihaya"
"github.com/chihaya/chihaya/config"
"github.com/chihaya/chihaya/server/store"
"github.com/chihaya/chihaya/tracker"
)
func init() {
tracker.RegisterAnnounceMiddleware("client_whitelist", whitelistAnnounceClient)
}
// whitelistAnnounceClient provides a middleware that only allows Clients to
// announce that are stored in a ClientStore.
func whitelistAnnounceClient(next tracker.AnnounceHandler) tracker.AnnounceHandler {
return func(cfg *config.TrackerConfig, req *chihaya.AnnounceRequest, resp *chihaya.AnnounceResponse) error {
whitelisted, err := store.MustGetStore().FindClient(req.PeerID)
if err != nil {
return err
} else if !whitelisted {
return ErrBlockedClient
}
return next(cfg, req, resp)
}
}