Listen bucket notification for multiple prefixes/suffixes (#2911)

* Listen bucket notification for multiple prefixes/suffixes

* After review fixes

cmd/api-resources_test.go

@@ -18,6 +18,7 @@ package cmd
 
 import (
 	"net/url"
+	"strings"
 	"testing"
 )
 
@@ -188,3 +189,38 @@ func TestGetObjectsResources(t *testing.T) {
 		}
 	}
 }
+
+// Validates if filter values are correct
+func TestValidateFilterValues(t *testing.T) {
+	testCases := []struct {
+		values        []string
+		expectedError APIErrorCode
+	}{
+		{
+			values:        []string{""},
+			expectedError: ErrNone,
+		},
+		{
+			values:        []string{"", "prefix"},
+			expectedError: ErrNone,
+		},
+		{
+			values:        []string{strings.Repeat("a", 1025)},
+			expectedError: ErrFilterValueInvalid,
+		},
+		{
+			values:        []string{"a\\b"},
+			expectedError: ErrFilterValueInvalid,
+		},
+		{
+			values:        []string{string([]byte{0xff, 0xfe, 0xfd})},
+			expectedError: ErrFilterValueInvalid,
+		},
+	}
+
+	for i, testCase := range testCases {
+		if actualError := validateFilterValues(testCase.values); actualError != testCase.expectedError {
+			t.Errorf("Test %d: Expected %d, got %d", i+1, testCase.expectedError, actualError)
+		}
+	}
+}