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manager-rldp.go
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manager-rldp.go
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package overlay
import (
"context"
"crypto/ed25519"
"encoding/hex"
"fmt"
"github.com/xssnick/tonutils-go/adnl/rldp"
"github.com/xssnick/tonutils-go/tl"
"sync"
)
type RLDP interface {
GetADNL() rldp.ADNL
Close()
DoQuery(ctx context.Context, maxAnswerSize int64, query, result tl.Serializable) error
SetOnQuery(handler func(transferId []byte, query *rldp.Query) error)
SetOnDisconnect(handler func())
SendAnswer(ctx context.Context, maxAnswerSize int64, queryId, transferId []byte, answer tl.Serializable) error
}
type RLDPWrapper struct {
mx sync.RWMutex
overlays map[string]*RLDPOverlayWrapper
rootQueryHandler func(transferId []byte, query *rldp.Query) error
rootDisconnectHandler func()
unknownOverlayHandler func(transferId []byte, query *rldp.Query) error
RLDP
}
func CreateExtendedRLDP(rldp RLDP) *RLDPWrapper {
w := &RLDPWrapper{
RLDP: rldp,
overlays: map[string]*RLDPOverlayWrapper{},
}
w.RLDP.SetOnQuery(w.queryHandler)
w.GetADNL().SetDisconnectHandler(w.disconnectHandler)
return w
}
func (r *RLDPWrapper) SetOnQuery(handler func(transferId []byte, query *rldp.Query) error) {
r.rootQueryHandler = handler
}
func (r *RLDPWrapper) SetOnUnknownOverlayQuery(handler func(transferId []byte, query *rldp.Query) error) {
r.unknownOverlayHandler = handler
}
func (r *RLDPWrapper) SetOnDisconnect(handler func()) {
r.rootDisconnectHandler = handler
}
func (r *RLDPWrapper) queryHandler(transferId []byte, query *rldp.Query) error {
obj, over := UnwrapQuery(query.Data)
if over != nil {
id := hex.EncodeToString(over)
r.mx.RLock()
o := r.overlays[id]
r.mx.RUnlock()
if o == nil {
if h := r.unknownOverlayHandler; h != nil {
return h(transferId, query)
}
return fmt.Errorf("got query for unregistered overlay with id: %s", id)
}
h := o.queryHandler
if h == nil {
return nil
}
return h(transferId, &rldp.Query{
ID: query.ID,
MaxAnswerSize: query.MaxAnswerSize,
Timeout: query.Timeout,
Data: obj,
})
}
h := r.rootQueryHandler
if h == nil {
return nil
}
return h(transferId, query)
}
func (r *RLDPWrapper) disconnectHandler(addr string, key ed25519.PublicKey) {
var list []func()
r.mx.RLock()
for _, w := range r.overlays {
dis := w.disconnectHandler
if dis != nil {
list = append(list, dis)
}
}
r.mx.RUnlock()
dis := r.rootDisconnectHandler
if dis != nil {
list = append(list, dis)
}
for _, dis = range list {
dis()
}
}