1 files changed, 76 insertions, 0 deletions
diff --git a/plugins/static/config.go b/plugins/static/config.go
new file mode 100644
index 00000000..f5d26b2d
--- /dev/null
+++ b/plugins/static/config.go
@@ -0,0 +1,76 @@
+package static
+
+import (
+	"os"
+	"path"
+	"strings"
+
+	"github.com/spiral/errors"
+)
+
+// Config describes file location and controls access to them.
+type Config struct {
+	Static struct {
+		// Dir contains name of directory to control access to.
+		Dir string
+
+		// Forbid specifies list of file extensions which are forbidden for access.
+		// Example: .php, .exe, .bat, .htaccess and etc.
+		Forbid []string
+
+		// Always specifies list of extensions which must always be served by static
+		// service, even if file not found.
+		Always []string
+
+		// Request headers to add to every static.
+		Request map[string]string
+
+		// Response headers to add to every static.
+		Response map[string]string
+	}
+}
+
+// Valid returns nil if config is valid.
+func (c *Config) Valid() error {
+	const op = errors.Op("static plugin validation")
+	st, err := os.Stat(c.Static.Dir)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return errors.E(op, errors.Errorf("root directory '%s' does not exists", c.Static.Dir))
+		}
+
+		return err
+	}
+
+	if !st.IsDir() {
+		return errors.E(op, errors.Errorf("invalid root directory '%s'", c.Static.Dir))
+	}
+
+	return nil
+}
+
+// AlwaysForbid must return true if file extension is not allowed for the upload.
+func (c *Config) AlwaysForbid(filename string) bool {
+	ext := strings.ToLower(path.Ext(filename))
+
+	for _, v := range c.Static.Forbid {
+		if ext == v {
+			return true
+		}
+	}
+
+	return false
+}
+
+// AlwaysServe must indicate that file is expected to be served by static service.
+func (c *Config) AlwaysServe(filename string) bool {
+	ext := strings.ToLower(path.Ext(filename))
+
+	for _, v := range c.Static.Always {
+		if ext == v {
+			return true
+		}
+	}
+
+	return false
+}