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decoder.go
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decoder.go
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/*
Copyright NetFoundry Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
https://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package edge_ctrl_pb
import (
"fmt"
"github.com/michaelquigley/pfxlog"
"github.com/openziti/channel/v2"
"google.golang.org/protobuf/proto"
"strings"
)
type Decoder struct{}
const DECODER = "edge_ctrl"
func (d Decoder) Decode(msg *channel.Message) ([]byte, bool) {
switch msg.ContentType {
case int32(ContentType_ServerHelloType):
request := &ServerHello{}
if err := proto.Unmarshal(msg.Body, request); err == nil {
meta := channel.NewTraceMessageDecode(DECODER, "Server Hello")
meta["version"] = request.Version
var extraData []string
for k, v := range request.Data {
extraData = append(extraData, fmt.Sprintf("%v=%v", k, v))
}
meta["data"] = strings.Join(extraData, ",")
return meta.MarshalResult()
} else {
pfxlog.Logger().Errorf("unexpected error (%s)", err)
return nil, true
}
case int32(ContentType_ClientHelloType):
request := &ClientHello{}
if err := proto.Unmarshal(msg.Body, request); err == nil {
meta := channel.NewTraceMessageDecode(DECODER, "Client Hello")
meta["version"] = request.Version
meta["hostname"] = request.Hostname
meta["protocols"] = strings.Join(request.Protocols, ",")
meta["protocolPorts"] = strings.Join(request.ProtocolPorts, ",")
var data []string
for k, v := range request.Data {
data = append(data, fmt.Sprintf("%v=%v", k, v))
}
meta["data"] = strings.Join(data, ",")
return meta.MarshalResult()
} else {
pfxlog.Logger().Errorf("unexpected error (%s)", err)
return nil, true
}
case int32(ContentType_ErrorType):
meta := channel.NewTraceMessageDecode(DECODER, "Edge Error")
meta["error"] = string(msg.Body)
return meta.MarshalResult()
case int32(ContentType_SessionRemovedType):
request := &SessionRemoved{}
if err := proto.Unmarshal(msg.Body, request); err == nil {
meta := channel.NewTraceMessageDecode(DECODER, "Session Removed")
meta["ids"] = strings.Join(request.Ids, ",")
meta["tokens"] = strings.Join(request.Tokens, ",")
return meta.MarshalResult()
} else {
pfxlog.Logger().Errorf("unexpected error (%s)", err)
return nil, true
}
case int32(ContentType_CreateCircuitRequestType):
request := &CreateCircuitRequest{}
if err := proto.Unmarshal(msg.Body, request); err == nil {
meta := channel.NewTraceMessageDecode(DECODER, "Create Circuit")
meta["sessionToken"] = request.SessionToken
meta["terminatorInstanceId"] = request.TerminatorInstanceId
meta["fingerprints"] = strings.Join(request.Fingerprints, ",")
return meta.MarshalResult()
} else {
pfxlog.Logger().Errorf("unexpected error (%s)", err)
return nil, true
}
case int32(ContentType_CreateCircuitResponseType):
request := &CreateCircuitResponse{}
if err := proto.Unmarshal(msg.Body, request); err == nil {
meta := channel.NewTraceMessageDecode(DECODER, "Create Circuit Response")
meta["circuitId"] = request.CircuitId
meta["address"] = request.Address
return meta.MarshalResult()
} else {
pfxlog.Logger().Errorf("unexpected error (%s)", err)
return nil, true
}
}
return nil, false
}