refactor: Split Go code into multiple files

1 files changed, 48 insertions, 0 deletions

diff --git a/allowed.go b/allowed.go
new file mode 100644
index 00000000..e6789206
--- /dev/null
+++ b/allowed.go
@@ -0,0 +1,48 @@
+package main
+
+import (
+	"fmt"
+	"html/template"
+	"log"
+	"net/http"
+	"os"
+	"regexp"
+	"slices"
+)
+
+type AllowedFiles struct {
+	allowedFiles []string
+}
+
+func (a *AllowedFiles) GetFiles(w http.ResponseWriter, r *http.Request) {
+	log.Println("Request for:", r.URL.String())
+	url := fmt.Sprintf("static%s", r.URL.String())
+	htmlRegex, err := regexp.Compile("^static/.*\\.html$")
+	if err != nil {
+		ErrorPage(w, 500)
+		return
+	}
+
+	if url == "static/" {
+		url = "static/index.html"
+	}
+
+	if !slices.Contains(a.allowedFiles, url) {
+		ErrorPage(w, 404)
+		return
+	}
+
+	if htmlRegex.MatchString(url) {
+		t := template.Must(template.ParseFiles("templates/template.html"))
+
+		html, err := os.ReadFile(url)
+		if err != nil {
+			ErrorPage(w, 500)
+			return
+		}
+
+		t.Execute(w, template.HTML(html))
+	} else {
+		http.ServeFile(w, r, url)
+	}
+}