private String getIpAdrress()

in manager/general/src/main/java/org/apache/doris/stack/service/user/AuthenticationService.java [178:212]

32 lines of code
16 McCabe index (conditional complexity)


    private  String getIpAdrress(HttpServletRequest request) {
        String realIP = request.getHeader("X-Real-IP");
        String xForIP = request.getHeader("X-Forwarded-For");
        if (StringUtils.isNotEmpty(xForIP) && !"unKnown".equalsIgnoreCase(xForIP)) {
            //After multiple reverse proxies, there will be multiple IP values,
            // and the first IP is the real IP ,X-Forwarded-For: client, proxy1, proxy2，proxy
            int index = xForIP.indexOf(",");
            if (index != -1) {
                return xForIP.substring(0, index);
            } else {
                return xForIP;
            }
        }
        xForIP = realIP;
        if (StringUtils.isNotEmpty(xForIP) && !"unKnown".equalsIgnoreCase(xForIP)) {
            return xForIP;
        }
        if (StringUtils.isBlank(xForIP) || "unknown".equalsIgnoreCase(xForIP)) {
            xForIP = request.getHeader("Proxy-Client-IP");
        }
        if (StringUtils.isBlank(xForIP) || "unknown".equalsIgnoreCase(xForIP)) {
            xForIP = request.getHeader("WL-Proxy-Client-IP");
        }
        if (StringUtils.isBlank(xForIP) || "unknown".equalsIgnoreCase(xForIP)) {
            xForIP = request.getHeader("HTTP_CLIENT_IP");
        }
        if (StringUtils.isBlank(xForIP) || "unknown".equalsIgnoreCase(xForIP)) {
            xForIP = request.getHeader("HTTP_X_FORWARDED_FOR");
        }
        // Finally, the IP address is obtained through request. Getremoteaddr()
        if (StringUtils.isBlank(xForIP) || "unknown".equalsIgnoreCase(xForIP)) {
            xForIP = request.getRemoteAddr();
        }
        return xForIP;
    }