first commit

cmd/server/main.go

@@ -0,0 +1,88 @@
+package main
+
+import (
+	"bytes"
+	"log"
+	"net/http"
+	"os"
+
+	chromahtml "github.com/alecthomas/chroma/v2/formatters/html"
+	"github.com/alecthomas/chroma/v2/styles"
+
+	"ridgwaysystems.org/paste/internal/handler"
+	"ridgwaysystems.org/paste/internal/paste"
+)
+
+func main() {
+	port := getenv("PORT", "8081")
+	dataDir := getenv("DATA_DIR", "data")
+
+	// Generate syntax.css at startup (light + dark via media query)
+	if err := generateSyntaxCSS("static/css/syntax.css"); err != nil {
+		log.Printf("warning: could not generate syntax.css: %v", err)
+	}
+
+	store, err := paste.NewStore(dataDir)
+	if err != nil {
+		log.Fatal("paste store:", err)
+	}
+
+	h := handler.New(store)
+
+	mux := http.NewServeMux()
+
+	// Static files
+	mux.Handle("GET /static/", http.StripPrefix("/static/", http.FileServer(http.Dir("static"))))
+
+	// Public routes
+	mux.HandleFunc("GET /{$}", h.List)
+	mux.HandleFunc("GET /{id}", h.ViewPaste)
+	mux.HandleFunc("GET /raw/{id}", h.RawPaste)
+
+	// Paste creation (auth required)
+	mux.HandleFunc("GET /new", h.RequireAuth(h.NewPasteForm))
+	mux.HandleFunc("POST /new", h.RequireAuth(h.NewPastePost))
+
+	// Admin
+	mux.HandleFunc("GET /admin", h.RequireAuth(h.AdminDashboard))
+	mux.HandleFunc("GET /admin/login", h.AdminLogin)
+	mux.HandleFunc("POST /admin/login", h.AdminLoginPost)
+	mux.HandleFunc("POST /admin/logout", h.RequireAuth(h.AdminLogout))
+	mux.HandleFunc("POST /admin/delete/{id}", h.RequireAuth(h.DeletePaste))
+
+	srv := handler.Chain(mux,
+		handler.LoggingMiddleware,
+		handler.SecurityHeadersMiddleware,
+	)
+
+	log.Printf("paste.ridgwaysystems.org starting on :%s (DEV=%s)", port, os.Getenv("DEV"))
+	log.Fatal(http.ListenAndServe(":"+port, srv))
+}
+
+// generateSyntaxCSS writes a chroma CSS file with light and dark themes.
+func generateSyntaxCSS(path string) error {
+	formatter := chromahtml.New(chromahtml.WithClasses(true))
+
+	var buf bytes.Buffer
+	buf.WriteString("/* Auto-generated by chroma at server startup. Do not edit. */\n\n")
+	if err := formatter.WriteCSS(&buf, styles.Get("github")); err != nil {
+		return err
+	}
+
+	buf.WriteString("\n@media (prefers-color-scheme: dark) {\n")
+	var dark bytes.Buffer
+	if err := formatter.WriteCSS(&dark, styles.Get("github-dark")); err != nil {
+		return err
+	}
+	buf.Write(dark.Bytes())
+	buf.WriteString("}\n")
+
+	return os.WriteFile(path, buf.Bytes(), 0644)
+}
+
+func getenv(key, def string) string {
+	if v := os.Getenv(key); v != "" {
+		return v
+	}
+	return def
+}