113 lines
2.5 KiB
Go
113 lines
2.5 KiB
Go
package main
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import (
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"html/template"
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"log"
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"net/http"
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"os"
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"runtime"
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"sync"
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"git.sr.ht/~michalr/go-satel"
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)
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const (
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NotificationPartitionIndex = 0
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)
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type Sender interface {
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Send(msg GenericMessage, tpl *template.Template) error
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}
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type Sleeper interface {
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Sleep(ch chan<- interface{})
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}
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func Consume(events <-chan GenericMessage) {
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go func() {
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for range events {
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runtime.GC()
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}
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}()
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}
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func SendToTg(events <-chan GenericMessage, s Sender, wg *sync.WaitGroup, logger *log.Logger, tpl *template.Template) <-chan GenericMessage {
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returnEvents := make(chan GenericMessage)
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go func() {
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wg.Add(1)
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defer wg.Done()
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for e := range events {
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returnEvents <- e
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err := s.Send(e, tpl)
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if err != nil {
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// TODO: handle it better
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panic(err)
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}
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}
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close(returnEvents)
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}()
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return returnEvents
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}
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func doHttpNotification(url string, logger *log.Logger, wg *sync.WaitGroup) {
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wg.Add(1)
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defer wg.Done()
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if len(url) == 0 {
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return
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}
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req, err := http.NewRequest(http.MethodPost, url, nil)
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res, err := http.DefaultClient.Do(req)
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if err != nil {
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logger.Print("Could not POST ", url, ": ", err)
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return
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}
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logger.Print("Notified via HTTP with result ", res.StatusCode)
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}
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func NotifyViaHTTP(events <-chan GenericMessage, wg *sync.WaitGroup, logger *log.Logger) <-chan GenericMessage {
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returnEvents := make(chan GenericMessage)
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armCallbackUrl := os.Getenv("NOTIFY_URL_ARM")
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disarmCallbackUrl := os.Getenv("NOTIFY_URL_DISARM")
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alarmCallbackUrl := os.Getenv("ALARM_URL_ARM")
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armDisarmCallbackEnabled := (len(armCallbackUrl) != 0) && (len(disarmCallbackUrl) != 0)
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alarmCallbackEnabled := (len(alarmCallbackUrl) != 0)
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go func() {
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wg.Add(1)
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defer wg.Done()
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for e := range events {
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returnEvents <- e
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if armDisarmCallbackEnabled {
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inner_arm:
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for _, basicElement := range e.Messages {
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if (basicElement.Index == NotificationPartitionIndex) && (basicElement.Type == satel.ArmedPartition) {
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if basicElement.Value == ArmedPartition_Armed {
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go doHttpNotification(armCallbackUrl, logger, wg)
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} else {
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go doHttpNotification(disarmCallbackUrl, logger, wg)
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}
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break inner_arm
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}
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}
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}
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if alarmCallbackEnabled {
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inner_alarm:
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for _, basicElement := range e.Messages {
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if basicElement.Type == satel.PartitionAlarm {
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if basicElement.Value == PartitionAlarm_Alarm {
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go doHttpNotification(alarmCallbackUrl, logger, wg)
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break inner_alarm
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}
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}
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}
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}
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}
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close(returnEvents)
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}()
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return returnEvents
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}
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