前言:
此时兄弟们对“log4net配置脱敏”都比较重视,你们都想要了解一些“log4net配置脱敏”的相关资讯。那么小编也在网络上收集了一些关于“log4net配置脱敏””的相关文章,希望姐妹们能喜欢,同学们一起来了解一下吧!许多系统为了安全需要对敏感信息(如手机号、邮箱、姓名、身份证号、密码、卡号、住址等)的日志打印要求脱敏后才能输出,本文将结合个人经历及总结分享一种log4j日志脱敏方式。
自定义Layout
import org.apache.logging.log4j.core.Layout;import org.apache.logging.log4j.core.LogEvent;import org.apache.logging.log4j.core.config.Node;import org.apache.logging.log4j.core.config.plugins.Plugin;import org.apache.logging.log4j.core.config.plugins.PluginAttribute;import org.apache.logging.log4j.core.config.plugins.PluginElement;import org.apache.logging.log4j.core.config.plugins.PluginFactory;import org.apache.logging.log4j.core.layout.AbstractStringLayout;import org.apache.logging.log4j.core.layout.PatternLayout;import org.apache.logging.log4j.core.pattern.RegexReplacement;import java.nio.charset.Charset;@Plugin(name = "MyPatternLayout", category = Node.CATEGORY, elementType = Layout.ELEMENT_TYPE, printObject = true)public class MyPatternLayout extends AbstractStringLayout { private PatternLayout patternLayout; private Boolean sensitive; private RegexReplacement[] replaces; protected MyPatternLayout(Charset charset, String pattern, Boolean sensitive, RegexReplacement[] replaces) { super(charset); patternLayout = PatternLayout.newBuilder().withPattern(pattern).build(); this.sensitive = sensitive; this.replaces = replaces; } /** * 插件构造工厂方法 * * @param pattern 输出pattern * @param charset 字符集 * @param sensitive 是否开启脱敏 * @param replaces 脱敏规则 * @return Layout<String> */ @PluginFactory public static Layout<String> createLayout(@PluginAttribute(value = "pattern") final String pattern, @PluginAttribute(value = "charset", defaultString = "UTF-8") final Charset charset, @PluginAttribute(value = "sensitive") final Boolean sensitive, @PluginElement("replace") final RegexReplacement[] replaces) { return new MyPatternLayout(charset, pattern, sensitive, replaces); } @Override public String toSerializable(LogEvent event) { // 原日志信息 String msg = this.patternLayout.toSerializable(event); if (Boolean.FALSE.equals(this.sensitive)) { // 不脱敏,直接返回 return msg; } if (this.replaces == null || this.replaces.length == 0) { throw new RuntimeException("未配置脱敏规则,请检查配置重试"); } for (RegexReplacement replace : this.replaces) { // 遍历脱敏正则 & 替换敏感数据 msg = replace.format(msg); } // 脱敏后的日志 return msg; }}
编写log4j配置
以下预设了8中常见规则,请自行根据实际情况修改
<?xml version="1.0" encoding="utf-8"?><configuration> <properties> <!-- 文件输出格式 --> <property name="PATTERN">%d{yyyy-MM-dd HH:mm:ss.SSS} %5level --- [%t] %c : %msg%n</property> </properties> <appenders> <!-- 日志打印到控制台Appender --> <Console name="CONSOLE" target="system_out"> <MyPatternLayout pattern="${PATTERN}" sensitive="true"> <replace> <!-- 11位的手机号:保留前3后4 --> <regex> <![CDATA[ (mobile|手机号)(=|=\[|\":\"|:|:|=')(1)([3-9]{2})(\d{4})(\d{4})(\]|\"|'|) ]]> </regex> <replacement>$1$2$3$4****$6$7</replacement> </replace> <replace> <!-- 固定电话:XXXX-XXXXXXXX或XXX-XXXXXXXX,保留区号+前2后2 --> <regex> <![CDATA[ (tel|座机)(=|=\[|\":\"|:|:|=')([\d]{3,4}-)(\d{2})(\d{4})(\d{2})(\]|\"|'|) ]]> </regex> <replacement>$1$2$3$4****$6$7</replacement> </replace> <replace> <!-- 地址:汉字+字母+数字+下划线+中划线,留前3个汉字 --> <regex> <![CDATA[ (地址|住址|address)(=|=\[|\":\"|:|:|=')([\u4e00-\u9fa5]{3})(\w|[\u4e00-\u9fa5]|-)*(\]|\"|'|) ]]> </regex> <replacement>$1$2$3****$5</replacement> </replace> <replace> <!-- 19位的卡号,保留后4 --> <regex> <![CDATA[ (cardNo|卡号)(=|=\[|\":\"|:|:|=')(\d{15})(\d{4})(\]|\"|'|) ]]> </regex> <replacement>$1$2***************$4$5</replacement> </replace> <replace> <!-- 姓名,2-4汉字,留前1--> <regex> <![CDATA[ (name|姓名)(=|=\[|\":\"|:|:|=')([\u4e00-\u9fa5]{1})([\u4e00-\u9fa5]{1,3})(\]|\"|'|) ]]> </regex> <replacement>$1$2$3**$5</replacement> </replace> <replace> <!-- 密码 6位数字,全* --> <regex> <![CDATA[ (password|密码|验证码)(=|=\[|\":\"|:|:|=')(\d{6})(\]|\"|'|) ]]> </regex> <replacement>$1$2******$4</replacement> </replace> <replace> <!-- 身份证,18位(结尾为数字或X、x),保留前1后1 --> <regex> <![CDATA[ (身份证号|idCard)(=|=\[|\":\"|:|:|=')(\d{1})(\d{16})([\d|X|x]{1})(\]|\"|) ]]> </regex> <replacement>$1$2$3****************$5$6</replacement> </replace> <replace> <!-- 邮箱,保留@前的前1后1 --> <regex> <![CDATA[ (\w{1})(\w*)(\w{1})@(\w+).com ]]> </regex> <replacement>$1****$3@$4.com</replacement> </replace> </MyPatternLayout> </Console> </appenders> <loggers> <!-- 控制台输出 --> <root level="info"> <AppenderRef ref="CONSOLE"/> </root> </loggers></configuration>
注意:
Console使用了上一节中我们自己写的的MyPatternLayout,MyPatternLayout的两个属性pattern和sensitive,对应类MyPatternLayout的插件工厂方法的入参MyPatternLayout节点的子节点replace(可多个)是我们配置的脱敏正则表达式
正则匹配说明
<replace> <!-- 11位的手机号:保留前3后4 --> <regex> <![CDATA[(mobile|手机号|phoneNo)(=|=\[|\":\"|:|:|=')(1)([3-9]{2})(\d{4})(\d{4})(\]|\"|'|) ]]> </regex> <replacement>$1$2$3$4****$6$7</replacement></replace>
regex说明
(mobile|手机号|phoneNo):脱敏关键字,多个之间以英文|分隔(=|=[|“:”|:|:|='):关键字后的符号,多个之间以英文|分隔,详见下文匹配说明(1):匹配数字1([3-9]{2}):匹配2位数字,取值为3-9间的数字(\d{4}):匹配4位数字(\d{4}):匹配4位数字(]|"|'|):匹配值后的其他字符
// 代码logger.infoMessage("mobile={}", "13511114444");# 脱敏后2021-11-16 11:02:08.767 INFO --- [main] log.test.LogTest : mobile=135****4444
分组匹配示意图(同颜色为对应关系)
replacement中的$n即对应第n对括号(从1开始),上图中共有7对括号,$1$2$3$4**** $6$7则表示,仅有第5组内容被**** 替代,其他内容按原内容显示
注意事项
根据情况自行调整replace节点含脱敏关键字的正则,尽量列举全面值匹配正则(如上文的手机号的第3分组到倒数第2分组):需要根据实际情况调整,特别是卡号、账号的规则,各家银行或有不同修改完配置后,务必进行测试,正则解析出错只有运行时可发现日志打印规范,根据第2分组(=|=[|“:”|:|:|=')可知,可匹配如下情况
@Testpublic void test0() { // 等号 logger.infoMessage("mobile={}", "13511114444"); // 等号+[ logger.infoMessage("mobile=[{}]", "13511114444"); // 英文单引号+等号 logger.infoMessage("mobile'='{}'", "13511114444"); // 中文冒号 logger.infoMessage("mobile:{}", "13511114444"); // 英文冒号 logger.infoMessage("mobile:{}", "13511114444"); // 英文双引号+英文冒号 logger.infoMessage("\"mobile\":\"{}\"", "13511114444");}# 脱敏后log.test.LogTest : mobile=135****4444log.test.LogTest : mobile=[135****4444]log.test.LogTest : mobile:135****4444log.test.LogTest : mobile:135****4444log.test.LogTest : 'mobile'='13511114444'log.test.LogTest : "mobile":"135****4444"
对于不符合如上的情况,请调整代码或修改匹配正则
脱敏测试
普通字符串值直接输出
@Testpublic void test1() { //11位手机号 logger.infoMessage("mobile={}", "13511114444"); logger.infoMessage("mobile={},手机号:{}", "13511112222", "13511113333"); logger.infoMessage("手机号:{}", "13511115555"); //固定电话(带区号-) logger.infoMessage("tel:{},座机={}", "0791-83376222", "021-88331234"); logger.infoMessage("tel:{}", "0791-83376222"); logger.infoMessage("座机={}", "021-88331234"); //地址 logger.infoMessage("address:{}", "浙江省杭州市西湖区北京西路100号"); logger.infoMessage("地址:{}", "上海市浦东区北京东路1-10号"); //19位卡号 logger.infoMessage("cardNo:{}", "6227002020000101222"); //姓名 logger.infoMessage("name={}, 姓名=[{}],name={},姓名:{}", "张三", "上官婉儿", "李云龙", "楚云飞"); //密码 logger.infoMessage("password:{},密码={}", "123456", "456789"); logger.infoMessage("password:{}", "123456"); logger.infoMessage("密码={}", "123456"); //身份证号码 logger.infoMessage("idCard:{},身份证号={}", "360123202111111122", "360123202111111122"); logger.infoMessage("身份证号={}", "360123202111111122"); //邮箱 logger.infoMessage("邮箱:{}", "wxyz123@qq.com"); logger.infoMessage("email={}", "wxyz123@qq.com");}# 结果log.test.LogTest : mobile=135****4444log.test.LogTest : mobile=135****2222,手机号:135****3333log.test.LogTest : 手机号:135****5555log.test.LogTest : tel:0791-83****22,座机=021-88****34log.test.LogTest : tel:0791-83****22log.test.LogTest : 座机=021-88****34log.test.LogTest : address:浙江省****log.test.LogTest : 地址:上海市****log.test.LogTest : cardNo:***************1222log.test.LogTest : name=张**, 姓名=[上**],name=李**,姓名:楚**log.test.LogTest : password:******,密码=******log.test.LogTest : password:******log.test.LogTest : 密码=******log.test.LogTest : idCard:3****************2,身份证号=3****************2log.test.LogTest : 身份证号=3****************2log.test.LogTest : 邮箱:w****3@qq.comlog.test.LogTest : email=w****3@qq.com
json和toString的脱敏输出
@Testpublic void test2() { User user = new User(); user.setCardNo("6227002020000101222"); user.setTel("0571-28821111"); user.setAddress("浙江省西湖区西湖路288号钱江乐园2-101室"); user.setEmail("zhangs12345@qq.com"); user.setPassword("123456"); user.setMobile("15911116789"); user.setName("张三"); user.setIdCard("360123202111111122"); Job job = new Job(); job.setAddress("浙江省西湖区西湖路288号钱江乐园2-101室"); job.setTel("0571-12345678"); job.setJobName("操作员"); job.setSalary(2000); job.setCompany("股份有限公司"); job.setPosition(Arrays.asList("需求", "开发", "测试", "上线")); user.setJob(job); //toString logger.infoMessage("用户信息:{}", user); //json logger.infoMessage("用户信息:{}", JSONUtil.toJsonStr(user));}log.test.LogTest : 用户信息:User{name='张**', idCard='3****************2', cardNo='***************1222', mobile='159****6789', tel='0571-28****11', password='******', email='z****5@qq.com', address='浙江省****', job=Job{jobName='操作员', salary=2000, company='股份有限公司', address='浙江省****', tel='0571-12****78', position=[需求, 开发, 测试, 上线]}}log.test.LogTest : 用户信息:{"password":"******","address":"浙江省****","idCard":"3****************2","name":"张**","mobile":"159****6789","tel":"0571-28****11","job":{"jobName":"操作员","address":"浙江省****","company":"股份有限公司","tel":"0571-12****78","position":["需求","开发","测试","上线"],"salary":2000},"cardNo":"***************1222","email":"z****5@qq.com"}
在线正则测试:
参考链接
来源:blog.csdn.net/blue_driver/article/details/122025368
标签: #log4net配置脱敏 #java日志输出