67 lines
1.6 KiB
Go
67 lines
1.6 KiB
Go
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"log"
|
|
"net/http"
|
|
"os"
|
|
"strings"
|
|
)
|
|
|
|
const (
|
|
MethodPurge = "PURGE"
|
|
)
|
|
|
|
var (
|
|
varnishList = MakeVarnishList()
|
|
)
|
|
|
|
// MakeVarnishList reads the list of varnish servers from a file on disk.
|
|
func MakeVarnishList() []string {
|
|
Data, err := os.ReadFile("./varnish")
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
sliceData := strings.Split(string(Data), ",")
|
|
return sliceData
|
|
}
|
|
|
|
// PurgeHandler handles PURGE request to broadcast it to all varnish instances.
|
|
func PurgeHandler(w http.ResponseWriter, r *http.Request) {
|
|
var resp http.Response
|
|
url := r.URL.String()
|
|
SendToVarnish(url)
|
|
io.WriteString(w, resp.Status)
|
|
}
|
|
|
|
func SendToVarnish(url string) int {
|
|
var status int
|
|
var respListStatus []string
|
|
|
|
// Take url to ban as argument.
|
|
// Loop over the list of Varnish servers and send PURGE request to each.
|
|
for i := 0; i < len(varnishList); i++ {
|
|
client := &http.Client{}
|
|
domain := strings.Trim(varnishList[i], "\r\n")
|
|
req, err := http.NewRequest(MethodPurge, domain + url, nil)
|
|
//fmt.Printf("Request: %v",req)
|
|
if err != nil {
|
|
log.Fatal("NewRquest: %s", err)
|
|
}
|
|
resp, err := client.Do(req)
|
|
if err != nil {
|
|
log.Fatal("Client.do: %s", err)
|
|
}
|
|
fmt.Printf("Resp: %v\n", resp)
|
|
respListStatus = append(respListStatus, resp.Status)
|
|
}
|
|
fmt.Println(respListStatus)
|
|
return status
|
|
}
|
|
|
|
func main() {
|
|
http.HandleFunc("/", PurgeHandler)
|
|
log.Fatal(http.ListenAndServe(":6081",nil))
|
|
}
|