Initial commit

webserver.go

@@ -0,0 +1,85 @@
+package main
+
+import (
+	// External
+	"git.gibonuddevalla.se/go/html_template"
+
+	// Standard
+	"embed"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"os"
+	"slices"
+)
+
+var (
+	htmlEngine HTMLTemplate.Engine
+
+	//go:embed static
+	staticFS embed.FS
+
+	//go:embed views
+	viewFS embed.FS
+)
+
+func registerWebserverHandlers() {
+	var err error
+	htmlEngine, err = HTMLTemplate.NewEngine(viewFS, staticFS, flagDev)
+	if err != nil {
+		logger.Error("webserver", "error", err)
+		os.Exit(1)
+	}
+
+	http.HandleFunc("/", rootHandler)
+}
+
+func startWebserver() {
+	listen := fmt.Sprintf("%s:%d", config.Network.Address, config.Network.Port)
+	logger.Info("webserver", "listen", listen)
+	http.ListenAndServe(listen, nil)
+}
+
+func rootHandler(w http.ResponseWriter, r *http.Request) {
+	if r.URL.Path == "/" {
+		page := HTMLTemplate.SimplePage{}
+		page.Layout = "main"
+		page.Page = "index"
+
+		var err error
+		data := make(map[string]any)
+
+		data["Identity"], err = device.GetIdentity()
+		if err != nil {
+			w.Write([]byte(err.Error()))
+			return
+		}
+
+		var entries []DNSRecord
+		entries, err = device.StaticDNSEntries()
+		if err != nil {
+			w.Write([]byte(err.Error()))
+			return
+		}
+
+		slices.SortFunc(entries, SortDNSRecord)
+		data["DNSRecords"] = entries
+		
+		tree := RecordsTree{}
+		tree = tree.BuildTree(entries, 0, 1)
+
+		j, _ := json.Marshal(tree)
+		os.WriteFile("/tmp/tree.json", j, 0644) 
+
+		page.Data = data
+
+		err = htmlEngine.Render(page, w, r)
+		if err != nil {
+			w.Write([]byte(err.Error()))
+			return
+		}
+		return
+	}
+
+	htmlEngine.StaticResource(w, r)
+}