From 00181aaa104c7c3bacee6c735c51b6ee2707f39c Mon Sep 17 00:00:00 2001
From: Raod <1130305001@qq.com>
Date: Wed, 26 Jan 2022 11:22:10 +0800
Subject: [PATCH] =?UTF-8?q?url=E4=B8=AD=E5=8D=88=E7=BC=96=E7=A0=81filter?=
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---
 .../gaea/business/filter/UrlDecodeFilter.java | 77 +++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 report-core/src/main/java/com/anjiplus/template/gaea/business/filter/UrlDecodeFilter.java

diff --git a/report-core/src/main/java/com/anjiplus/template/gaea/business/filter/UrlDecodeFilter.java b/report-core/src/main/java/com/anjiplus/template/gaea/business/filter/UrlDecodeFilter.java
new file mode 100644
index 00000000..0d79a3a0
--- /dev/null
+++ b/report-core/src/main/java/com/anjiplus/template/gaea/business/filter/UrlDecodeFilter.java
@@ -0,0 +1,77 @@
+package com.anjiplus.template.gaea.business.filter;
+
+import com.anji.plus.gaea.constant.GaeaConstant;
+import org.apache.catalina.util.ParameterMap;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.ibatis.ognl.IteratorEnumeration;
+import org.springframework.core.Ordered;
+import org.springframework.core.annotation.Order;
+import org.springframework.stereotype.Component;
+
+import javax.servlet.*;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletRequestWrapper;
+import java.io.IOException;
+import java.net.URLDecoder;
+import java.util.Enumeration;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * @author: Raod
+ * @since: 2022-01-26
+ */
+@Component
+@Order(Ordered.HIGHEST_PRECEDENCE + 1)
+public class UrlDecodeFilter implements Filter {
+
+    @Override
+    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
+        HttpServletRequest httpServletRequest = (HttpServletRequest) servletRequest;
+        ParameterMap<String, String[]> parameterMap = (ParameterMap) httpServletRequest.getParameterMap();
+        ParamHttpServletRequestWrapper wrapper = new ParamHttpServletRequestWrapper(httpServletRequest, parameterMap);
+
+        Enumeration<String> parameterNames = wrapper.getParameterNames();
+        while (parameterNames.hasMoreElements()) {
+            String paramName = parameterNames.nextElement();
+            String parameter = httpServletRequest.getParameter(paramName);
+            if (StringUtils.isNotBlank(parameter)) {
+                String decode = URLDecoder.decode(parameter, GaeaConstant.CHARSET_UTF8);
+                parameterMap.setLocked(false);
+                parameterMap.put(paramName, new String[]{decode});
+            }
+        }
+        filterChain.doFilter(wrapper, servletResponse);
+    }
+
+    /**
+     * 参数
+     */
+    class ParamHttpServletRequestWrapper extends HttpServletRequestWrapper {
+
+        private ParameterMap<String, String[]> parameterMap;
+
+        public ParamHttpServletRequestWrapper(HttpServletRequest request, ParameterMap<String, String[]> parameterMap) {
+            super(request);
+            this.parameterMap = parameterMap;
+        }
+
+        @Override
+        public Map<String, String[]> getParameterMap() {
+            return parameterMap;
+        }
+
+        @Override
+        public Enumeration<String> getParameterNames() {
+
+            Set<String> keySet = parameterMap.keySet();
+            IteratorEnumeration iteratorEnumeration = new IteratorEnumeration(keySet.iterator());
+            return iteratorEnumeration;
+        }
+
+        @Override
+        public String[] getParameterValues(String name) {
+            return parameterMap.get(name);
+        }
+    }
+}