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server.go
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server.go
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package pcp
import (
"fmt"
"github.com/antongulenko/RTP/protocols"
)
type Handler interface {
StartProxy(val *StartProxy) error
StopProxy(val *StopProxy) error
StartProxyPair(val *StartProxyPair) (*StartProxyPairResponse, error)
StopProxyPair(val *StopProxyPair) error
StopServer()
}
func RegisterServer(server *protocols.Server, handler Handler) error {
if err := server.Protocol().CheckIncludesFragment(Protocol.Name()); err != nil {
return err
}
state := &serverState{
Server: server,
handler: handler,
}
if err := server.RegisterHandlers(protocols.ServerHandlerMap{
codeStartProxy: state.handleStartProxy,
codeStopProxy: state.handleStopProxy,
codeStartProxyPair: state.handleStartProxyPair,
codeStopProxyPair: state.handleStopProxyPair,
}); err != nil {
return err
}
server.RegisterStopHandler(state.stopServer)
return nil
}
type serverState struct {
*protocols.Server
handler Handler
}
func (server *serverState) stopServer() {
server.handler.StopServer()
}
func (server *serverState) handleStartProxy(packet *protocols.Packet) *protocols.Packet {
if desc, ok := packet.Val.(*StartProxy); ok {
return server.ReplyCheck(server.handler.StartProxy(desc))
} else {
return server.ReplyError(fmt.Errorf("Illegal value for Pcp StartProxy: %v", packet.Val))
}
}
func (server *serverState) handleStopProxy(packet *protocols.Packet) *protocols.Packet {
if desc, ok := packet.Val.(*StopProxy); ok {
return server.ReplyCheck(server.handler.StopProxy(desc))
} else {
return server.ReplyError(fmt.Errorf("Illegal value for Pcp StopProxy: %v", packet.Val))
}
}
func (server *serverState) handleStartProxyPair(packet *protocols.Packet) *protocols.Packet {
if desc, ok := packet.Val.(*StartProxyPair); ok {
reply, err := server.handler.StartProxyPair(desc)
if err == nil {
return server.Reply(codeStartProxyPairResponse, reply)
} else {
return server.ReplyError(err)
}
} else {
return server.ReplyError(fmt.Errorf("Illegal value for Pcp StartProxyPair: %v", packet.Val))
}
}
func (server *serverState) handleStopProxyPair(packet *protocols.Packet) *protocols.Packet {
if desc, ok := packet.Val.(*StopProxyPair); ok {
return server.ReplyCheck(server.handler.StopProxyPair(desc))
} else {
return server.ReplyError(fmt.Errorf("Illegal value for Pcp StopProxyPair: %v", packet.Val))
}
}