mirror of
https://github.com/openziti/ziti.git
synced 2026-10-08 22:01:15 +00:00
Paul Lorenz
104 lines
3.2 KiB
Go
104 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_mgmt
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import (
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"encoding/json"
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"fmt"
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"github.com/michaelquigley/pfxlog"
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"github.com/openziti/channel/v2"
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"github.com/openziti/ziti/controller/event"
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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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"io"
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)
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type StreamEventsRequest struct {
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Format string `json:"format"`
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Subscriptions []*event.Subscription `json:"subscriptions"`
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}
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type streamEventsHandler struct {
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network *network.Network
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eventStreamHandlers []io.Closer
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}
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func newStreamEventsHandler(network *network.Network) *streamEventsHandler {
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return &streamEventsHandler{network: network}
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}
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func (*streamEventsHandler) ContentType() int32 {
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return int32(mgmt_pb.ContentType_StreamEventsRequestType)
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}
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func (handler *streamEventsHandler) HandleReceive(msg *channel.Message, ch channel.Channel) {
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dispatcher := handler.network.GetEventDispatcher()
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request := &StreamEventsRequest{}
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if err := json.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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formatterFactory := dispatcher.GetFormatterFactory(request.Format)
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if formatterFactory == nil {
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handler_common.SendFailure(msg, ch, fmt.Sprintf("invalid format ['%v']", request.Format))
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return
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}
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formatter := formatterFactory.NewFormatter(&EventsStreamHandler{
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ch: ch,
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})
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handler.eventStreamHandlers = append(handler.eventStreamHandlers, formatter)
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if err := handler.network.GetEventDispatcher().ProcessSubscriptions(formatter, request.Subscriptions); err != nil {
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handler_common.SendFailure(msg, ch, err.Error())
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} else {
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handler_common.SendSuccess(msg, ch, "success")
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}
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}
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func (handler *streamEventsHandler) HandleClose(channel.Channel) {
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for _, streamHandler := range handler.eventStreamHandlers {
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handler.network.GetEventDispatcher().RemoveAllSubscriptions(streamHandler)
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if err := streamHandler.Close(); err != nil {
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pfxlog.Logger().WithError(err).Error("error while closing stream event handler")
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}
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}
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}
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type EventsStreamHandler struct {
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ch channel.Channel
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}
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func (handler *EventsStreamHandler) AcceptFormattedEvent(eventType string, formattedEvent []byte) {
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msg := channel.NewMessage(int32(mgmt_pb.ContentType_StreamEventsEventType), formattedEvent)
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msg.PutStringHeader(int32(mgmt_pb.Header_EventTypeHeader), eventType)
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if err := handler.ch.Send(msg); err != nil {
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pfxlog.Logger().Errorf("unexpected error sending StreamEventsEvent (%s)", err)
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handler.close()
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}
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}
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func (handler *EventsStreamHandler) close() {
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if err := handler.ch.Close(); err != nil {
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pfxlog.Logger().WithError(err).Errorf("failure while closing handler")
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}
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}
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