add static file for router

baa.go

@@ -223,6 +223,15 @@ func (b *Baa) Static(prefix string, dir string, index bool, h HandlerFunc) {
 	b.Get(prefix+"*", staticHandler)
 }
 
+// StaticFile shortcut for serve file
+func (b *Baa) StaticFile(pattern string, path string, h HandlerFunc) RouteNode {
+	return b.Get(pattern, func(c *Context) {
+		if err := serveFile(path, c); err != nil {
+			c.Error(err)
+		}
+	}, h)
+}
+
 // SetAutoHead sets the value who determines whether add HEAD method automatically
 // when GET method is added. Combo router will not be affected by this value.
 func (b *Baa) SetAutoHead(v bool) {

static.go

@@ -57,7 +57,7 @@ func newStatic(prefix, dir string, index bool, h HandlerFunc) HandlerFunc {
 					listDir(file, s, c)
 				} else {
 					// check index
-					if err := serveIndex(file+indexPage, c); err != nil {
+					if err := serveFile(file+indexPage, c); err != nil {
 						c.Resp.WriteHeader(http.StatusForbidden)
 					}
 				}
@@ -66,7 +66,7 @@ func newStatic(prefix, dir string, index bool, h HandlerFunc) HandlerFunc {
 		}
 
 		if len(file) >= len(indexPage) && file[len(file)-len(indexPage):] == indexPage {
-			if err := serveIndex(file, c); err != nil {
+			if err := serveFile(file, c); err != nil {
 				c.Error(err)
 			}
 		} else {
@@ -109,7 +109,7 @@ func listDir(dir string, s *static, c *Context) {
 	fmt.Fprintf(c.Resp, "</pre>\n")
 }
 
-func serveIndex(file string, c *Context) error {
+func serveFile(file string, c *Context) error {
 	f, err := os.Open(file)
 	if err != nil {
 		return err
@@ -119,6 +119,9 @@ func serveIndex(file string, c *Context) error {
 	if err != nil {
 		return err
 	}
+	if fs.IsDir() {
+		return fmt.Errorf("given path is dir, not file")
+	}
 	http.ServeContent(c.Resp, c.Req, f.Name(), fs.ModTime(), f)
 	return nil
 }