Normalize relay addresses

service/domain/relay_address.go

@@ -11,6 +11,9 @@ type RelayAddress struct {
 }
 
 func NewRelayAddress(s string) (RelayAddress, error) {
+	s = strings.TrimSpace(s)
+	s = strings.TrimRight(s, "/")
+
 	if !strings.HasPrefix(s, "ws://") && !strings.HasPrefix(s, "wss://") {
 		return RelayAddress{}, errors.New("invalid protocol")
 	}

service/domain/relay_address_test.go

@@ -0,0 +1,53 @@
+package domain
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestRelayAddress(t *testing.T) {
+	testCases := []struct {
+		Input  string
+		Output string
+	}{
+		{
+			Input:  "wss://example.com",
+			Output: "wss://example.com",
+		},
+		{
+			Input:  "ws://example.com",
+			Output: "ws://example.com",
+		},
+
+		{
+			Input:  " wss://example.com",
+			Output: "wss://example.com",
+		},
+		{
+			Input:  "wss://example.com ",
+			Output: "wss://example.com",
+		},
+		{
+			Input:  " wss://example.com ",
+			Output: "wss://example.com",
+		},
+
+		{
+			Input:  "wss://example.com/",
+			Output: "wss://example.com",
+		},
+		{
+			Input:  "wss://example.com/ ",
+			Output: "wss://example.com",
+		},
+	}
+
+	for _, testCase := range testCases {
+		t.Run(testCase.Input, func(t *testing.T) {
+			result, err := NewRelayAddress(testCase.Input)
+			require.NoError(t, err)
+			require.Equal(t, testCase.Output, result.String())
+		})
+	}
+}