Cs and refactoring

1 files changed, 70 insertions, 0 deletions

diff --git a/cmd/_____/http/static.go b/cmd/_____/http/static.go
new file mode 100644
index 00000000..d7030c3f
--- /dev/null
+++ b/cmd/_____/http/static.go
@@ -0,0 +1,70 @@
+package http
+
+import (
+	"github.com/sirupsen/logrus"
+	"net/http"
+	"os"
+	"path"
+	"path/filepath"
+	"strings"
+)
+
+var (
+	forbiddenFiles = []string{".php", ".htaccess"}
+)
+
+// staticServer serves static files
+type staticServer struct {
+	root http.Dir
+}
+
+// serve attempts to serve static file and returns true in case of success, will return false in case if file not
+// found, not allowed or on read error.
+func (svr *staticServer) serve(w http.ResponseWriter, r *http.Request) bool {
+	fpath := r.URL.Path
+	if !strings.HasPrefix(fpath, "/") {
+		fpath = "/" + fpath
+	}
+	fpath = path.Clean(fpath)
+
+	if svr.forbidden(fpath) {
+		logrus.Warningf("attempt to access forbidden file %s", fpath) // todo: better logs
+		return false
+	}
+
+	f, err := svr.root.Open(fpath)
+	if err != nil {
+		if !os.IsNotExist(err) {
+			logrus.Error(err) //todo: rr or access error
+		}
+
+		return false
+	}
+	defer f.Close()
+
+	d, err := f.Stat()
+	if err != nil {
+		logrus.Error(err) //todo: rr or access error
+		return false
+	}
+
+	if d.IsDir() {
+		// do not serve directories
+		return false
+	}
+
+	http.ServeContent(w, r, d.Name(), d.ModTime(), f)
+	return true
+}
+
+// forbidden returns true if file has forbidden extension.
+func (svr *staticServer) forbidden(path string) bool {
+	ext := strings.ToLower(filepath.Ext(path))
+	for _, exl := range forbiddenFiles {
+		if ext == exl {
+			return true
+		}
+	}
+
+	return false
+}