Function DetectXSS

internal/waf/injectionutils/utils_xss.go:53–82

DetectXSS detect XSS in string

(input string, isStrict bool)

// DetectXSS detect XSS in string
func DetectXSS(input string, isStrict bool) bool {
	if len(input) == 0 {
		return false
	}

	if detectXSSOne(input, isStrict) {
		return true
	}

	// 兼容 /PATH?URI
	if (input[0] == '/' || strings.HasPrefix(input, "http://") || strings.HasPrefix(input, "https://")) && len(input) < 1024 {
		var argsIndex = strings.Index(input, "?")
		if argsIndex > 0 {
			var args = input[argsIndex+1:]
			unescapeArgs, err := url.QueryUnescape(args)
			if err == nil && args != unescapeArgs {
				return detectXSSOne(args, isStrict) || detectXSSOne(unescapeArgs, isStrict)
			} else {
				return detectXSSOne(args, isStrict)
			}
		}
	} else {
		unescapedInput, err := url.QueryUnescape(input)
		if err == nil && input != unescapedInput {
			return detectXSSOne(unescapedInput, isStrict)
		}
	}

	return false
}

func detectXSSOne(input string, isStrict bool) bool {
	if len(input) == 0 {