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vernemqwebhook.go
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vernemqwebhook.go
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/*
* Copyright 2018 InfAI (CC SES)
*
* 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
*
* http://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 vernemqtt
import (
"context"
"github.com/SENERGY-Platform/mqtt-platform-connector/lib/configuration"
"github.com/SENERGY-Platform/mqtt-platform-connector/lib/connectionlog"
"github.com/SENERGY-Platform/mqtt-platform-connector/lib/topic"
"github.com/SENERGY-Platform/platform-connector-lib"
"log"
"log/slog"
"net/http"
"os"
"runtime/debug"
"time"
)
func InitWebhooks(ctx context.Context, config configuration.Config, connector *platform_connector_lib.Connector, connectionLog connectionlog.ConnectionLog) {
topicParser := topic.New(connector.IotCache, config.ActuatorTopicPattern)
router := http.NewServeMux()
logger := GetLogger()
router.HandleFunc("/login", func(writer http.ResponseWriter, request *http.Request) {
login(writer, request, config, connector, connectionLog, logger)
})
router.HandleFunc("/online", func(writer http.ResponseWriter, request *http.Request) {
online(writer, request, config, connectionLog)
})
router.HandleFunc("/disconnect", func(writer http.ResponseWriter, request *http.Request) {
disconnect(writer, request, config, connectionLog, logger)
})
router.HandleFunc("/publish", func(writer http.ResponseWriter, request *http.Request) {
publish(writer, request, config, connector, topicParser)
})
router.HandleFunc("/subscribe", func(writer http.ResponseWriter, request *http.Request) {
subscribe(writer, request, config, connector, topicParser, connectionLog)
})
router.HandleFunc("/unsubscribe", func(writer http.ResponseWriter, request *http.Request) {
unsubscribe(writer, request, config, connector, topicParser, connectionLog)
})
var handler http.Handler = router
if config.Debug {
handler = Logger(router)
}
server := &http.Server{Addr: ":" + config.WebhookPort, Handler: handler, WriteTimeout: 10 * time.Second, ReadTimeout: 2 * time.Second, ReadHeaderTimeout: 2 * time.Second}
go func() {
log.Println("Listening on ", server.Addr)
if err := server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
log.Println("ERROR: api server error", err)
log.Fatal(err)
}
}()
go func() {
<-ctx.Done()
log.Println("DEBUG: webhook shutdown", server.Shutdown(context.Background()))
}()
}
func Logger(handler http.Handler) *LoggerMiddleWare {
return &LoggerMiddleWare{handler: handler}
}
type LoggerMiddleWare struct {
handler http.Handler
}
func (this *LoggerMiddleWare) ServeHTTP(w http.ResponseWriter, r *http.Request) {
this.log(r)
if this.handler != nil {
this.handler.ServeHTTP(w, r)
} else {
http.Error(w, "Forbidden", 403)
}
}
func (this *LoggerMiddleWare) log(request *http.Request) {
method := request.Method
path := request.URL
log.Printf("[%v] %v \n", method, path)
}
func GetLogger() *slog.Logger {
logger := slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{
Level: slog.LevelInfo,
}))
if info, ok := debug.ReadBuildInfo(); ok {
logger = logger.With("go-module", info.Path)
}
return logger.With("snrgy-log-type", "connector-webhook")
}