mirror of
https://github.com/openziti/ziti.git
synced 2026-09-25 03:42:38 +00:00
Andrew Martinez
96 lines
3.2 KiB
Go
96 lines
3.2 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_edge_ctrl
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import (
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"github.com/michaelquigley/pfxlog"
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"github.com/openziti/channel"
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"github.com/openziti/channel/protobufs"
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"github.com/openziti/edge/controller/env"
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"github.com/openziti/edge/pb/edge_ctrl_pb"
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"github.com/openziti/fabric/build"
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"google.golang.org/protobuf/proto"
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"strconv"
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)
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type helloHandler struct {
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listeners []*edge_ctrl_pb.Listener
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//backwards compat for controllers v0.26.3 and older
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hostname string
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supportedProtocols []string
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protocolPorts []string
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}
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func NewHelloHandler(listeners []*edge_ctrl_pb.Listener) *helloHandler {
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//supportedProtocols, protocolPorts, and hostname is for backwards compatability with v0.26.3 and older controllers
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var supportedProtocols []string
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var protocolPorts []string
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hostname := ""
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for _, listener := range listeners {
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pfxlog.Logger().Debugf("HelloHandler will contain supportedProtocols address: %s advertise: %s", listener.Address.Value, listener.Advertise.Value)
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supportedProtocols = append(supportedProtocols, listener.Address.Protocol)
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protocolPorts = append(protocolPorts, strconv.Itoa(int(listener.Advertise.Port)))
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if hostname != "" && hostname != listener.Advertise.Hostname {
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pfxlog.Logger().Warnf("this router is configured to use different hostnames for different edge listeners. If the controller is v0.26.3 or earlier this is not supported. Advertise %s will be used for all protocls", listeners[0].Advertise.Value)
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}
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hostname = listener.Advertise.Hostname
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}
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return &helloHandler{
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listeners: listeners,
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//v0.26.3 and older used to check and ensure all advertise hostnames were the same which can't be done now
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//with the ability to report multiple advertise protocols on different hostnames
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hostname: listeners[0].Advertise.Hostname,
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supportedProtocols: supportedProtocols,
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protocolPorts: protocolPorts,
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}
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}
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func (h *helloHandler) ContentType() int32 {
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return env.ServerHelloType
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}
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func (h *helloHandler) HandleReceive(msg *channel.Message, ch channel.Channel) {
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go func() {
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serverHello := &edge_ctrl_pb.ServerHello{}
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if err := proto.Unmarshal(msg.Body, serverHello); err == nil {
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pfxlog.Logger().Info("received server hello, replying")
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clientHello := &edge_ctrl_pb.ClientHello{
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Version: build.GetBuildInfo().Version(),
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Listeners: h.listeners,
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Hostname: h.hostname,
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Protocols: h.supportedProtocols,
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ProtocolPorts: h.protocolPorts,
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}
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if err := protobufs.MarshalTyped(clientHello).ReplyTo(msg).Send(ch); err != nil {
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pfxlog.Logger().WithError(err).Error("could not send client hello")
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}
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return
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} else {
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pfxlog.Logger().WithError(err).Error("could not unmarshal server hello")
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}
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}()
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}
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