first push

go.mod

@@ -0,0 +1,5 @@
+module git.snrd.de/Spaenny/a2s-steam-server
+
+go 1.17
+
+require github.com/rumblefrog/go-a2s v1.0.1

go.sum

@@ -0,0 +1,2 @@
+github.com/rumblefrog/go-a2s v1.0.1 h1:0M4QUDB1Tz00tCz36r/AWB4YFO2ajksvPnd7Abzz9SE=
+github.com/rumblefrog/go-a2s v1.0.1/go.mod h1:JwbTgMTRGZcWzr3T2MUfDusrJU5Bdg8biEeZzPtN0So=

main.go

@@ -0,0 +1,67 @@
+package main
+
+import (
+    "fmt"
+    "log"
+    "bytes"
+    "net/http"
+    "net/url"
+    "strings"
+    "runtime"
+
+    "github.com/rumblefrog/go-a2s"
+    "encoding/json"
+)
+
+func newServerQuerier(host string) ([]byte, error) {
+    client, err := a2s.NewClient(host)
+
+    if err != nil {
+        log.Printf("Creation of client failed: %s", err)
+    }
+
+    defer client.Close()
+
+    info, err := client.QueryInfo()
+
+    if err != nil {
+        log.Printf("Querying failed: %s", err)
+        return []byte("\"error\": \"1\""), nil
+    }
+
+    log.Printf("%s - %s\n", host, info.Name)
+
+    buf, err := json.Marshal(info)
+
+    var indented bytes.Buffer
+    json.Indent(&indented, buf, "\t", "\t")
+
+    return []byte(indented.String()), err
+}
+
+func Log(handler http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		log.Printf("access: %s %s %s", r.RemoteAddr, r.Method, r.URL)
+		handler.ServeHTTP(w, r)
+	})
+}
+
+func httpServer(w http.ResponseWriter, r *http.Request) {
+	uriSegments := strings.Split(r.URL.String(), "/")
+	host, _ := url.QueryUnescape(uriSegments[2])
+
+	var info, err = newServerQuerier(host)
+    if err != nil {
+        log.Printf("Got an error while receiving data: %s", err)
+    }
+
+	w.Header().Set("Content-Type", "application/json; charset=UTF-8")
+	fmt.Fprintf(w, "%s", info)
+}
+
+func main() {
+	runtime.GOMAXPROCS(runtime.NumCPU())
+
+	http.HandleFunc("/server/", httpServer)
+	log.Fatal(http.ListenAndServe(":8080", Log(http.DefaultServeMux)))
+}