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          一文玩轉(zhuǎn) Java 日志數(shù)據(jù)脫敏

          共 23142字,需瀏覽 47分鐘

           ·

          2022-06-21 02:11

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          來(lái)源:blog.csdn.net/blue_driver/article/details/122025368

          • 自定義Layout
          • 編寫(xiě)log4j配置
          • 正則匹配說(shuō)明
          • 注意事項(xiàng)
          • 脫敏測(cè)試

          許多系統(tǒng)為了安全需要對(duì)敏感信息(如手機(jī)號(hào)、郵箱、姓名、身份證號(hào)、密碼、卡號(hào)、住址等)的日志打印要求脫敏后才能輸出,本文將結(jié)合個(gè)人經(jīng)歷及總結(jié)分享一種log4j日志脫敏方式。

          自定義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;
              }

              /**
               * 插件構(gòu)造工廠方法
               *
               * @param pattern   輸出pattern
               * @param charset   字符集
               * @param sensitive 是否開(kāi)啟脫敏
               * @param replaces  脫敏規(guī)則
               * @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)) {
                      // 不脫敏,直接返回
                      return msg;
                  }

                  if (this.replaces == null || this.replaces.length == 0) {
                      throw new RuntimeException("未配置脫敏規(guī)則,請(qǐng)檢查配置重試");
                  }

                  for (RegexReplacement replace : this.replaces) {
                      // 遍歷脫敏正則 & 替換敏感數(shù)據(jù)
                      msg = replace.format(msg);
                  }

                  // 脫敏后的日志
                  return msg;
              }
          }

          編寫(xiě)log4j配置

          以下預(yù)設(shè)了8中常見(jiàn)規(guī)則,請(qǐng)自行根據(jù)實(shí)際情況修改

          <?xml version="1.0" encoding="utf-8"?>
          <configuration>
              <properties>
                  <!-- 文件輸出格式 -->
                  <property name="PATTERN">%d{yyyy-MM-dd HH:mm:ss.SSS} %5level --- [%t] %c : %msg%n</property>
              </properties>

              <appenders>
                  <!-- 日志打印到控制臺(tái)Appender -->
                  <Console name="CONSOLE" target="system_out">
                      <MyPatternLayout pattern="${PATTERN}" sensitive="true">
                          <replace>
                              <!-- 11位的手機(jī)號(hào):保留前3后4 -->
                              <regex>
                                  <![CDATA[
              (mobile|手機(jī)號(hào))(=|=\[|\":\"|:|:|=')(1)([3-9]{2})(\d{4})(\d{4})(\]|\"|'|)
                 ]]>
                              </regex>
                              <replacement>$1$2$3$4****$6$7</replacement>
                          </replace>
                          <replace>
                              <!-- 固定電話:XXXX-XXXXXXXX或XXX-XXXXXXXX,保留區(qū)號(hào)+前2后2 -->
                              <regex>
                                  <![CDATA[
              (tel|座機(jī))(=|=\[|\":\"|:|:|=')([\d]{3,4}-)(\d{2})(\d{4})(\d{2})(\]|\"|'|)
                 ]]>
                              </regex>
                              <replacement>$1$2$3$4****$6$7</replacement>
                          </replace>

                          <replace>
                              <!-- 地址:漢字+字母+數(shù)字+下劃線+中劃線,留前3個(gè)漢字 -->
                              <regex>
                                  <![CDATA[
              (地址|住址|address)(=|=\[|\":\"|:|:|=')([\u4e00-\u9fa5]{3})(\w|[\u4e00-\u9fa5]|-)*(\]|\"|'|)
                 ]]>
                              </regex>
                              <replacement>$1$2$3****$5</replacement>
                          </replace>


                          <replace>
                              <!-- 19位的卡號(hào),保留后4 -->
                              <regex>
                                  <![CDATA[
              (cardNo|卡號(hào))(=|=\[|\":\"|:|:|=')(\d{15})(\d{4})(\]|\"|'|)
                 ]]>
                              </regex>
                              <replacement>$1$2***************$4$5</replacement>
                          </replace>

                          <replace>
                              <!-- 姓名,2-4漢字,留前1-->
                              <regex>
                                  <![CDATA[
              (name|姓名)(=|=\[|\":\"|:|:|=')([\u4e00-\u9fa5]{1})([\u4e00-\u9fa5]{1,3})(\]|\"|'|)
                 ]]>
                              </regex>
                              <replacement>$1$2$3**$5</replacement>
                          </replace>

                          <replace>
                              <!--  密碼 6位數(shù)字,全* -->
                              <regex>
                                  <![CDATA[
               (password|密碼|驗(yàn)證碼)(=|=\[|\":\"|:|:|=')(\d{6})(\]|\"|'|)
                 ]]>
                              </regex>
                              <replacement>$1$2******$4</replacement>
                          </replace>

                          <replace>
                              <!-- 身份證,18位(結(jié)尾為數(shù)字或X、x),保留前1后1 -->
                              <regex>
                                  <![CDATA[
                 (身份證號(hào)|idCard)(=|=\[|\":\"|:|:|=')(\d{1})(\d{16})([\d|X|x]{1})(\]|\"|)
                 ]]>
                              </regex>
                              <replacement>$1$2$3****************$5$6</replacement>
                          </replace>

                          <replace>
                              <!-- 郵箱,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>
                  <!-- 控制臺(tái)輸出 -->
                  <root level="info">
                      <AppenderRef ref="CONSOLE"/>
                  </root>
              </loggers>

          </configuration>

          注意:

          • Console使用了上一節(jié)中我們自己寫(xiě)的的MyPatternLayout,MyPatternLayout的兩個(gè)屬性patternsensitive,對(duì)應(yīng)類MyPatternLayout的插件工廠方法的入?yún)?/section>
          • MyPatternLayout節(jié)點(diǎn)的子節(jié)點(diǎn)replace(可多個(gè))是我們配置的脫敏正則表達(dá)式

          正則匹配說(shuō)明

          <replace>
              <!-- 11位的手機(jī)號(hào):保留前3后4 -->
              <regex>
                  <![CDATA[
          (mobile|手機(jī)號(hào)|phoneNo)(=|=\[|\":\"|:|:|=')(1)([3-9]{2})(\d{4})(\d{4})(\]|\"|'|)
                      ]]>
              </regex>
              <replacement>$1$2$3$4****$6$7</replacement>
          </replace>

          regex說(shuō)明

          • (mobile|手機(jī)號(hào)|phoneNo):脫敏關(guān)鍵字,多個(gè)之間以英文|分隔
          • (=|=\[|\":\"|:|:|='):關(guān)鍵字后的符號(hào),多個(gè)之間以英文|分隔,詳見(jiàn)下文匹配說(shuō)明
          • (1):匹配數(shù)字1
          • ([3-9]{2}):匹配2位數(shù)字,取值為3-9間的數(shù)字
          • (\d{4}):匹配4位數(shù)字
          • (\d{4}):匹配4位數(shù)字
          • (\]|\"|'|):匹配值后的其他字符
          // 代碼
          logger.infoMessage("mobile={}""13511114444");
          # 脫敏后
          2021-11-16 11:02:08.767  INFO --- [main] log.test.LogTest : mobile=135****4444

          分組匹配示意圖(同顏色為對(duì)應(yīng)關(guān)系)

          圖片

          replacement中的$n即對(duì)應(yīng)第n對(duì)括號(hào)(從1開(kāi)始),上圖中共有7對(duì)括號(hào),$1$2$3$4**** $6$7則表示,僅有第5組內(nèi)容被**** 替代,其他內(nèi)容按原內(nèi)容顯示

          注意事項(xiàng)

          • 根據(jù)情況自行調(diào)整replace節(jié)點(diǎn)
          • 含脫敏關(guān)鍵字的正則,盡量列舉全面
          • 值匹配正則(如上文的手機(jī)號(hào)的第3分組到倒數(shù)第2分組):需要根據(jù)實(shí)際情況調(diào)整,特別是卡號(hào)、賬號(hào)的規(guī)則,各家銀行或有不同
          • 修改完配置后,務(wù)必進(jìn)行測(cè)試,正則解析出錯(cuò)只有運(yùn)行時(shí)可發(fā)現(xiàn)
          • 日志打印規(guī)范,根據(jù)第2分組(=|=\[|\":\"|:|:|=')可知,可匹配如下情況
          @Test
          public void test0() {
              // 等號(hào)
              logger.infoMessage("mobile={}""13511114444");
              // 等號(hào)+[
              logger.infoMessage("mobile=[{}]""13511114444");
              // 英文單引號(hào)+等號(hào)
              logger.infoMessage("mobile'='{}'""13511114444");
              // 中文冒號(hào)
              logger.infoMessage("mobile:{}""13511114444");
              // 英文冒號(hào)
              logger.infoMessage("mobile:{}""13511114444");
              // 英文雙引號(hào)+英文冒號(hào)
              logger.infoMessage("\"mobile\":\"{}\"""13511114444");
          }
          # 脫敏后
          log.test.LogTest : mobile=135****4444
          log.test.LogTest : mobile=[135****4444]
          log.test.LogTest : mobile:135****4444
          log.test.LogTest : mobile:135****4444
          log.test.LogTest : 'mobile'='13511114444'
          log.test.LogTest : "mobile":"135****4444"

          對(duì)于不符合如上的情況,請(qǐng)調(diào)整代碼或修改匹配正則

          脫敏測(cè)試

          普通字符串值直接輸出

          @Test
          public void test1() {
              //11位手機(jī)號(hào)
              logger.infoMessage("mobile={}""13511114444");
              logger.infoMessage("mobile={},手機(jī)號(hào):{}""13511112222""13511113333");
              logger.infoMessage("手機(jī)號(hào):{}""13511115555");
              //固定電話(帶區(qū)號(hào)-)
              logger.infoMessage("tel:{},座機(jī)={}""0791-83376222""021-88331234");
              logger.infoMessage("tel:{}""0791-83376222");
              logger.infoMessage("座機(jī)={}""021-88331234");

              //地址
              logger.infoMessage("address:{}""浙江省杭州市西湖區(qū)北京西路100號(hào)");
              logger.infoMessage("地址:{}""上海市浦東區(qū)北京東路1-10號(hào)");

              //19位卡號(hào)
              logger.infoMessage("cardNo:{}""6227002020000101222");

              //姓名
              logger.infoMessage("name={}, 姓名=[{}],name={},姓名:{}""張三""上官婉兒""李云龍""楚云飛");

              //密碼
              logger.infoMessage("password:{},密碼={}""123456""456789");
              logger.infoMessage("password:{}""123456");
              logger.infoMessage("密碼={}""123456");

              //身份證號(hào)碼
              logger.infoMessage("idCard:{},身份證號(hào)={}""360123202111111122""360123202111111122");
              logger.infoMessage("身份證號(hào)={}""360123202111111122");

              //郵箱
              logger.infoMessage("郵箱:{}""[email protected]");
              logger.infoMessage("email={}""[email protected]");
          }
          # 結(jié)果
          log.test.LogTest : mobile=135****4444
          log.test.LogTest : mobile=135****2222,手機(jī)號(hào):135****3333
          log.test.LogTest : 手機(jī)號(hào):135****5555
          log.test.LogTest : tel:0791-83****22,座機(jī)=021-88****34
          log.test.LogTest : tel:0791-83****22
          log.test.LogTest : 座機(jī)=021-88****34
          log.test.LogTest : address:浙江省****
          log.test.LogTest : 地址:上海市****
          log.test.LogTest : cardNo:***************1222
          log.test.LogTest : name=張**, 姓名=[上**],name=李**,姓名:楚**
          log.test.LogTest : password:******,密碼=******
          log.test.LogTest : password:******
          log.test.LogTest : 密碼=******
          log.test.LogTest : idCard:3****************2,身份證號(hào)=3****************2
          log.test.LogTest : 身份證號(hào)=3****************2
          log.test.LogTest : 郵箱:w****[email protected]
          log.test.LogTest : email=w****[email protected]

          jsontoString的脫敏輸出

          @Test
          public void test2() {
              User user = new User();
              user.setCardNo("6227002020000101222");
              user.setTel("0571-28821111");
              user.setAddress("浙江省西湖區(qū)西湖路288號(hào)錢(qián)江樂(lè)園2-101室");
              user.setEmail("[email protected]");
              user.setPassword("123456");
              user.setMobile("15911116789");
              user.setName("張三");
              user.setIdCard("360123202111111122");

              Job job = new Job();
              job.setAddress("浙江省西湖區(qū)西湖路288號(hào)錢(qián)江樂(lè)園2-101室");
              job.setTel("0571-12345678");
              job.setJobName("操作員");
              job.setSalary(2000);
              job.setCompany("股份有限公司");
              job.setPosition(Arrays.asList("需求""開(kāi)發(fā)""測(cè)試""上線"));

              user.setJob(job);
              
           //toString
              logger.infoMessage("用戶信息:{}", user);
              //json
              logger.infoMessage("用戶信息:{}", JSONUtil.toJsonStr(user));
          }
          log.test.LogTest : 用戶信息:User{name='張**', idCard='3****************2', cardNo='***************1222', mobile='159****6789', tel='0571-28****11', password='******', email='z****[email protected]', address='浙江省****', job=Job{jobName='操作員', salary=2000, company='股份有限公司', address='浙江省****', tel='0571-12****78', position=[需求, 開(kāi)發(fā), 測(cè)試, 上線]}}

          log.test.LogTest : 用戶信息:{"password":"******","address":"浙江省****","idCard":"3****************2","name":"張**","mobile":"159****6789","tel":"0571-28****11","job":{"jobName":"操作員","address":"浙江省****","company":"股份有限公司","tel":"0571-12****78","position":["需求","開(kāi)發(fā)","測(cè)試","上線"],"salary":2000},"cardNo":"***************1222","email":"z****[email protected]"}

          在線正則測(cè)試:https://c.runoob.com/front-end/854/

          參考鏈接

          • https://logging.apache.org/log4j/2.x/manual/extending.html
          • https://mp.weixin.qq.com/s/uKlit0Cu8ZhqM_1I1_N-9Q
          • https://blog.csdn.net/VcStrong/article/details/80527455

          (完)

          碼農(nóng)突圍資料鏈接

          1、臥槽!字節(jié)跳動(dòng)《算法中文手冊(cè)》火了,完整版 PDF 開(kāi)放下載!
          2、計(jì)算機(jī)基礎(chǔ)知識(shí)總結(jié)與操作系統(tǒng) PDF 下載
          3、艾瑪,終于來(lái)了!《LeetCode Java版題解》.PDF
          4、Github 10K+,《LeetCode刷題C/C++版答案》出爐.PDF

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