mirror of
https://github.com/openziti/ziti.git
synced 2026-10-13 15:51:21 +00:00
Michael Quigley
111 lines
3.5 KiB
Go
111 lines
3.5 KiB
Go
/*
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Copyright NetFoundry, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package handler_ctrl
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import (
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"fmt"
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"github.com/golang/protobuf/proto"
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"github.com/michaelquigley/pfxlog"
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"github.com/netfoundry/ziti-fabric/pb/ctrl_pb"
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"github.com/netfoundry/ziti-fabric/router/forwarder"
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"github.com/netfoundry/ziti-fabric/router/handler_xgress"
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"github.com/netfoundry/ziti-fabric/router/xgress"
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"github.com/netfoundry/ziti-foundation/channel2"
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"github.com/netfoundry/ziti-foundation/identity/identity"
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)
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type routeHandler struct {
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id *identity.TokenId
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ctrl xgress.CtrlChannel
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dialerCfg map[string]xgress.OptionsData
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forwarder *forwarder.Forwarder
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}
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func newRouteHandler(id *identity.TokenId, ctrl xgress.CtrlChannel, dialerCfg map[string]xgress.OptionsData, forwarder *forwarder.Forwarder) *routeHandler {
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return &routeHandler{
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id: id,
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ctrl: ctrl,
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dialerCfg: dialerCfg,
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forwarder: forwarder,
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}
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}
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func (rh *routeHandler) ContentType() int32 {
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return int32(ctrl_pb.ContentType_RouteType)
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}
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func (rh *routeHandler) HandleReceive(msg *channel2.Message, ch channel2.Channel) {
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log := pfxlog.ContextLogger(ch.Label())
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route := &ctrl_pb.Route{}
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if err := proto.Unmarshal(msg.Body, route); err == nil {
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if err := rh.createRoute(route); err == nil {
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response := channel2.NewResult(true, "")
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response.ReplyTo(msg)
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if err := rh.ctrl.Channel().Send(response); err == nil {
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log.Infof("handled route for [s/%s]", route.SessionId)
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} else {
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log.Errorf("send response failed for [s/%s] (%s)", route.SessionId, err)
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}
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} else {
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pfxlog.ContextLogger(ch.Label()).Errorf("error creating route for [s/%s] (%s)", route.SessionId, err)
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}
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} else {
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pfxlog.ContextLogger(ch.Label()).Errorf("error unmarshaling (%s)", err)
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}
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}
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func (rh *routeHandler) createRoute(route *ctrl_pb.Route) error {
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if route.Egress != nil {
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if rh.forwarder.HasDestination(xgress.Address(route.Egress.Address)) {
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pfxlog.Logger().Warnf("destination exists for [%s]", route.Egress.Address)
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} else {
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if err := rh.connectEgress(route); err != nil {
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return err
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}
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}
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}
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rh.forwarder.Route(route)
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return nil
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}
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func (rh *routeHandler) connectEgress(route *ctrl_pb.Route) error {
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log := pfxlog.Logger().WithField("sessionId", route.SessionId)
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log.Debugf("route request received. binding: %v, destination: %v, address: %v",
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route.Egress.Binding, route.Egress.Destination, route.Egress.Address)
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if factory, err := xgress.GlobalRegistry().Factory(route.Egress.Binding); err == nil {
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if dialer, err := factory.CreateDialer(rh.dialerCfg[route.Egress.Binding]); err == nil {
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sessionId := &identity.TokenId{Token: route.SessionId, Data: route.Egress.PeerData}
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return dialer.Dial(route.Egress.Destination,
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sessionId,
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xgress.Address(route.Egress.Address),
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handler_xgress.NewBindHandler(
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handler_xgress.NewReceiveHandler(rh.ctrl, rh.forwarder),
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handler_xgress.NewCloseHandler(rh.ctrl, rh.forwarder),
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rh.forwarder))
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} else {
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return fmt.Errorf("unable to create dialer (%s)", err)
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}
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} else {
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return err
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}
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}
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