1 files changed, 95 insertions, 0 deletions
diff --git a/modules/services/nixos/jta/main.go b/modules/services/nixos/jta/main.go
new file mode 100644
index 0000000..3e5fc1f
--- /dev/null
+++ b/modules/services/nixos/jta/main.go
@@ -0,0 +1,95 @@
+package main
+
+import (
+	"bytes"
+	_ "embed"
+	"html/template"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/yuin/goldmark"
+	"github.com/yuin/goldmark/extension"
+)
+
+// Configure Goldmark with GitHub Flavored Markdown
+var mdParser = goldmark.New(
+	goldmark.WithExtensions(
+		extension.GFM,
+	),
+)
+
+//go:embed md_template.html
+var mdTemplate string
+
+//go:embed style.css
+var styleCSS string
+
+//go:embed index.html
+var indexHTML string
+
+var pageTmpl = template.Must(template.New("md_template.html").Parse(mdTemplate))
+
+func serveMarkdown(w http.ResponseWriter, r *http.Request) {
+	// Prevent path traversal
+	clean := filepath.Clean(r.URL.Path)
+	path := filepath.Join(rootDir, strings.TrimPrefix(clean, "/"))
+
+	mdBytes, err := os.ReadFile(path)
+	if err != nil {
+		http.NotFound(w, r)
+		return
+	}
+
+	var buf bytes.Buffer
+	if err := mdParser.Convert(mdBytes, &buf); err != nil {
+		http.Error(w, "failed to render markdown", 500)
+		return
+	}
+
+	w.Header().Set("Content-Type", "text/html; charset=utf-8")
+
+	pageTmpl.Execute(w, map[string]template.HTML{
+		"Content": template.HTML(buf.String()),
+	})
+}
+
+var rootDir = "."
+
+func main() {
+	if envRootDir := os.Getenv("ROOT_DIR"); envRootDir != "" {
+		rootDir = envRootDir
+	}
+
+	fs := http.FileServer(http.Dir(rootDir))
+	port := os.Getenv("PORT")
+	if port == "" {
+		port = "8080"
+	}
+
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path == "/" || r.URL.Path == "/index.html" {
+			w.Header().Set("Content-Type", "text/html; charset=utf-8")
+			w.Write([]byte(indexHTML))
+			return
+		}
+
+		if r.URL.Path == "/style.css" {
+			w.Header().Set("Content-Type", "text/css; charset=utf-8")
+			w.Write([]byte(styleCSS))
+			return
+		}
+
+		// Intercept markdown files
+		if strings.HasSuffix(r.URL.Path, ".md") {
+			serveMarkdown(w, r)
+			return
+		}
+
+		// Otherwise serve normally
+		fs.ServeHTTP(w, r)
+	})
+
+	http.ListenAndServe(":"+port, nil)
+}