mirror of
https://github.com/openziti/ziti.git
synced 2026-10-08 05:41:20 +00:00
Paul Lorenz
100 lines
2.9 KiB
Go
100 lines
2.9 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_mgmt
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import (
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"github.com/michaelquigley/pfxlog"
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"github.com/openziti/channel/v2"
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"github.com/openziti/channel/v2/trace/pb"
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"github.com/openziti/ziti/controller/network"
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"github.com/openziti/ziti/common/handler_common"
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"github.com/openziti/ziti/common/pb/mgmt_pb"
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"github.com/openziti/ziti/common/trace"
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"google.golang.org/protobuf/proto"
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)
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type streamTracesHandler struct {
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network *network.Network
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streamHandlers []trace.EventHandler
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}
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func newStreamTracesHandler(network *network.Network) *streamTracesHandler {
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return &streamTracesHandler{network: network}
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}
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func (*streamTracesHandler) ContentType() int32 {
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return int32(mgmt_pb.ContentType_StreamTracesRequestType)
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}
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func (handler *streamTracesHandler) HandleReceive(msg *channel.Message, ch channel.Channel) {
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request := &mgmt_pb.StreamTracesRequest{}
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if err := proto.Unmarshal(msg.Body, request); err != nil {
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handler_common.SendFailure(msg, ch, err.Error())
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return
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}
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filter := createFilter(request)
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eventHandler := &traceEventsHandler{ch, filter}
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handler.streamHandlers = append(handler.streamHandlers, eventHandler)
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trace.AddTraceEventHandler(eventHandler)
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}
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func (handler *streamTracesHandler) HandleClose(channel.Channel) {
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for _, streamHandler := range handler.streamHandlers {
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trace.RemoveTraceEventHandler(streamHandler)
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}
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}
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func createFilter(request *mgmt_pb.StreamTracesRequest) trace.Filter {
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if !request.EnabledFilter {
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return trace.NewAllowAllFilter()
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}
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if request.FilterType == mgmt_pb.TraceFilterType_INCLUDE {
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return trace.NewIncludeFilter(request.ContentTypes)
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}
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return trace.NewExcludeFilter(request.ContentTypes)
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}
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type traceEventsHandler struct {
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ch channel.Channel
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filter trace.Filter
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}
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func (handler *traceEventsHandler) Accept(event *trace_pb.ChannelMessage) {
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if !handler.filter.Accept(event) {
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return
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}
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body, err := proto.Marshal(event)
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if err != nil {
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pfxlog.Logger().Errorf("unexpected error unmarshalling ChannelMessage (%s)", err)
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return
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}
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responseMsg := channel.NewMessage(int32(mgmt_pb.ContentType_StreamTracesEventType), body)
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if err := handler.ch.Send(responseMsg); err != nil {
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pfxlog.Logger().Errorf("unexpected error sending ChannelMessage (%s)", err)
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handler.close()
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}
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}
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func (handler *traceEventsHandler) close() {
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if err := handler.ch.Close(); err != nil {
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pfxlog.Logger().WithError(err).Error("unexpected error while closing mgmt channel")
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}
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}
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