Inital commit

main.go

@@ -0,0 +1,86 @@
+package main
+
+import (
+	"bufio"
+	_ "embed"
+	"flag"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+	"text/template"
+)
+
+//go:embed hjem.html
+var hjemTemplate string
+
+var port = flag.Int("p", 1437, "set the port for hjem to use")
+
+type HjemData struct {
+	OS    string
+	Email string
+}
+
+func main() {
+	flag.Parse()
+
+	t, err := template.New("hjem").Parse(hjemTemplate)
+	if err != nil {
+		panic(err)
+	}
+
+	user_os := "Unknown"
+
+	file, err := os.Open("/etc/os-release")
+	if err != nil {
+		panic(err)
+	}
+	defer file.Close()
+
+	scanner := bufio.NewScanner(file)
+	if scanner.Scan() {
+		user_os = strings.TrimRight(strings.TrimLeft(scanner.Text(), "NAME='"), "'")
+	}
+
+	user_email := "unknown@example.com"
+
+	file, err = os.Open(filepath.Join(func() string {
+		hostname, err := os.UserHomeDir()
+		if err != nil {
+			panic(err)
+		}
+		return hostname
+	}(), ".gitconfig"))
+	if err != nil {
+		panic(err)
+	}
+	defer file.Close()
+
+	scanner = bufio.NewScanner(file)
+	for scanner.Scan() {
+		text := scanner.Text()
+		if strings.Contains(text, "email = ") {
+			user_email = strings.TrimLeft(strings.TrimSpace(text), "email = ")
+			break
+		}
+	}
+
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+
+		err := t.ExecuteTemplate(w, "hjem", HjemData{
+			OS:    user_os,
+			Email: user_email,
+		})
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+		}
+	})
+
+	fmt.Printf("Web server is available at http://0.0.0.0:%d\n", *port)
+	fmt.Println("Press Ctrl+C to stop")
+
+	log.Fatal(http.ListenAndServe(fmt.Sprintf(":%d", *port), nil))
+}