Refactor server code (#407)

internal/web/handlers/auth.go

@@ -0,0 +1,17 @@
+package handlers
+
+import (
+	"github.com/thomiceli/opengist/internal/web/context"
+)
+
+type ContextAuthInfo struct {
+	Context *context.Context
+}
+
+func (auth ContextAuthInfo) RequireLogin() (bool, error) {
+	return auth.Context.GetData("RequireLogin") == true, nil
+}
+
+func (auth ContextAuthInfo) AllowGistsWithoutLogin() (bool, error) {
+	return auth.Context.GetData("AllowGistsWithoutLogin") == true, nil
+}