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VPlanClient.go
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VPlanClient.go
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package main
import (
"bytes"
"encoding/json"
"flag"
"io/ioutil"
"log"
"net/http"
"os"
"github.com/fsnotify/fsnotify"
)
func isCreateOrWrite(op fsnotify.Op) bool {
return op&fsnotify.Write == fsnotify.Write || op&fsnotify.Create == fsnotify.Create
}
func main() {
var url = flag.String("url", "", "The URL to post the VPlan data to")
var folder = flag.String("folder", "", "The folder to watch")
var auth = flag.String("auth", "", "The authentication secret")
// Log to file
f, err := os.OpenFile("logs.txt", os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
if err != nil {
log.Fatal("error opening log file")
}
defer f.Close()
log.SetOutput(f)
flag.Parse()
log.Println(*url, *folder)
watcher, err := fsnotify.NewWatcher()
if err != nil {
log.Fatal(err)
}
defer watcher.Close()
done := make(chan bool)
go func() {
for {
select {
case event := <-watcher.Events:
if isCreateOrWrite(event.Op) {
log.Println("modified file: ", event.Name)
b, err := ioutil.ReadFile(event.Name)
if err != nil {
log.Fatal(err)
}
postVPlan(*url, toUtf8(b), *auth)
}
case err := <-watcher.Errors:
log.Println("error:", err)
}
}
}()
err = watcher.Add(*folder)
if err != nil {
log.Fatal(err)
}
<-done
}
func toUtf8(buffer []byte) string {
buf := make([]rune, len(buffer))
for i, b := range buffer {
buf[i] = rune(b)
}
return string(buf)
}
func postVPlan(url, data, auth string) {
if len(data) < 20 {
return
}
values := map[string]string{"vplan": data}
jsonValue, _ := json.Marshal(values)
req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonValue))
if err != nil {
log.Fatal("NewRequest: ", err)
return
}
req.Header.Set("Content-Type", "application/json")
req.Header.Set("Authorization", auth)
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
log.Fatal("Do: ", err)
return
}
if resp.StatusCode != 200 {
log.Fatal("Vertretungsplan konnte nicht hochgeladen werden!")
return
}
log.Println("Neuer Vertretungsplan hochgeladen")
defer resp.Body.Close()
}