From 0e868bf85f7803d8b8a1692b507c0316d83b5f2f Mon Sep 17 00:00:00 2001
From: keyuan <keyuan258@gmail.com>
Date: Sat, 24 Apr 2021 16:41:22 +0800
Subject: [PATCH] =?UTF-8?q?=E8=A7=A3=E5=86=B3TOMCAT=E9=AB=98=E7=89=88?=
 =?UTF-8?q?=E6=9C=AC=E5=85=BC=E5=AE=B9=E9=97=AE=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../com/key/common/plugs/xss/XssHttpWrapper.java  | 15 +++++++++++----
 src/main/webapp/WEB-INF/web.xml                   |  2 +-
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/src/main/java/com/key/common/plugs/xss/XssHttpWrapper.java b/src/main/java/com/key/common/plugs/xss/XssHttpWrapper.java
index d98af56..5b24890 100644
--- a/src/main/java/com/key/common/plugs/xss/XssHttpWrapper.java
+++ b/src/main/java/com/key/common/plugs/xss/XssHttpWrapper.java
@@ -47,6 +47,13 @@ public class XssHttpWrapper extends HttpServletRequestWrapper {
      */
     @Override
     public String getHeader(String name) {
+        if("If-None-Match".equals(name)){
+//            W/"14873-1619252839000"
+            String value = super.getHeader(name);
+            if(value==null || value.length()<50){
+                return super.getHeader(name);
+            }
+        }
         String value = super.getHeader(xssEncode(name));
         if (value != null) {
             value = xssEncode(value);
@@ -54,8 +61,8 @@ public class XssHttpWrapper extends HttpServletRequestWrapper {
         return value;
     }
 
-    
-    
+
+
     /**
     *
     * @param name
@@ -169,6 +176,7 @@ public class XssHttpWrapper extends HttpServletRequestWrapper {
      */
     public String xssEncode(String s)
     {
+
         if (s == null || s.isEmpty())
         {
             return s;
@@ -188,7 +196,6 @@ public class XssHttpWrapper extends HttpServletRequestWrapper {
                 result = escape(result);
             }
         }
-
         return result;
     }
 
@@ -247,4 +254,4 @@ public class XssHttpWrapper extends HttpServletRequestWrapper {
         }
         return value;
     }
-}
\ No newline at end of file
+}
diff --git a/src/main/webapp/WEB-INF/web.xml b/src/main/webapp/WEB-INF/web.xml
index 619972a..edc1af7 100755
--- a/src/main/webapp/WEB-INF/web.xml
+++ b/src/main/webapp/WEB-INF/web.xml
@@ -47,7 +47,7 @@
 	</filter-mapping>
 
 	  <!-- 配置Java Xss保护过滤器 -->
-    <filter>
+   	<filter>
         <filter-name>xssFilter</filter-name>
         <filter-class>com.key.common.plugs.xss.XssFilter</filter-class>
     </filter>