1 files changed, 28 insertions, 0 deletions
diff --git a/plugins/websockets/origin.go b/plugins/websockets/origin.go
new file mode 100644
index 00000000..c6d9c9b8
--- /dev/null
+++ b/plugins/websockets/origin.go
@@ -0,0 +1,28 @@
+package websockets
+
+import (
+	"strings"
+)
+
+func isOriginAllowed(origin string, cfg *Config) bool {
+	if cfg.allowedAll {
+		return true
+	}
+
+	origin = strings.ToLower(origin)
+	// simple case
+	origin = strings.ToLower(origin)
+	for _, o := range cfg.allowedOrigins {
+		if o == origin {
+			return true
+		}
+	}
+	// check wildcards
+	for _, w := range cfg.allowedWOrigins {
+		if w.match(origin) {
+			return true
+		}
+	}
+
+	return false
+}