mirror of
https://github.com/openziti/ziti.git
synced 2026-10-12 15:28:05 +00:00
Michael Quigley
105 lines
3.3 KiB
Go
105 lines
3.3 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/netfoundry/ziti-fabric/pb/ctrl_pb"
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"github.com/netfoundry/ziti-fabric/router/xgress"
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"github.com/netfoundry/ziti-fabric/router/xlink"
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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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"github.com/sirupsen/logrus"
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)
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type dialHandler struct {
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id *identity.TokenId
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ctrl xgress.CtrlChannel
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dialers []xlink.Dialer
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}
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func newDialHandler(id *identity.TokenId, ctrl xgress.CtrlChannel, dialers []xlink.Dialer) *dialHandler {
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return &dialHandler{
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id: id,
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ctrl: ctrl,
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dialers: dialers,
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}
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}
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func (self *dialHandler) ContentType() int32 {
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return int32(ctrl_pb.ContentType_DialType)
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}
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func (self *dialHandler) HandleReceive(msg *channel2.Message, _ channel2.Channel) {
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logrus.Info("received link connect request")
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dial := &ctrl_pb.Dial{}
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if err := proto.Unmarshal(msg.Body, dial); err == nil {
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linkId := self.id.ShallowCloneWithNewToken(dial.Id)
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if len(self.dialers) == 1 {
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if err := self.dialers[0].Dial(dial.Address, linkId); err == nil {
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if err := self.sendLinkMessage(linkId); err != nil {
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logrus.Errorf("error sending link message [l/%s] (%v)", linkId.Token, err)
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}
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logrus.Infof("link [l/%s] established", linkId.Token)
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} else {
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logrus.Errorf("link dialing failed [%s] (%v)", dial.Address, err)
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if err := self.sendLinkFault(linkId); err != nil {
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logrus.Errorf("error sending fault [l/%s] (%v)", linkId.Token, err)
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}
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}
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} else {
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logrus.Errorf("invalid Xlink dialers configuration")
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if err := self.sendLinkFault(linkId); err != nil {
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logrus.Errorf("error sending link fault [l/%s] (%v)", linkId.Token, err)
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}
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}
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} else {
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logrus.Errorf("error unmarshaling dial message (%v)", err)
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}
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}
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func (self *dialHandler) sendLinkMessage(linkId *identity.TokenId) error {
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linkMsg := &ctrl_pb.Link{Id: linkId.Token}
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body, err := proto.Marshal(linkMsg)
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if err == nil {
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msg := channel2.NewMessage(int32(ctrl_pb.ContentType_LinkType), body)
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if err := self.ctrl.Channel().Send(msg); err != nil {
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return fmt.Errorf("error sending link message (%w)", err)
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}
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} else {
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return fmt.Errorf("error marshaling link message (%w)", err)
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}
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return nil
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}
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func (self *dialHandler) sendLinkFault(linkId *identity.TokenId) error {
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fault := &ctrl_pb.Fault{Subject: ctrl_pb.FaultSubject_LinkFault, Id: linkId.Token}
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body, err := proto.Marshal(fault)
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if err == nil {
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msg := channel2.NewMessage(int32(ctrl_pb.ContentType_FaultType), body)
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if err := self.ctrl.Channel().Send(msg); err != nil {
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return fmt.Errorf("error sending fault (%w)", err)
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}
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} else {
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return fmt.Errorf("error marshaling fault (%w)", err)
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}
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return nil
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}
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