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@@ -0,0 +1,134 @@
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+package com.zsElectric.boot.common.xss;
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+
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+import cn.hutool.core.io.IoUtil;
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+import cn.hutool.core.map.MapUtil;
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+import cn.hutool.core.util.ArrayUtil;
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+import cn.hutool.core.util.StrUtil;
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+import cn.hutool.http.HtmlUtil;
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+import com.youlai.boot.common.util.StringUtils;
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+import jakarta.servlet.ReadListener;
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+import jakarta.servlet.ServletInputStream;
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+import jakarta.servlet.http.HttpServletRequest;
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+import jakarta.servlet.http.HttpServletRequestWrapper;
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+import org.springframework.http.HttpHeaders;
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+import org.springframework.http.MediaType;
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+
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+import java.io.ByteArrayInputStream;
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+import java.io.IOException;
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+import java.nio.charset.StandardCharsets;
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+import java.util.HashMap;
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+import java.util.Map;
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+
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+/**
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+ * XSS过滤处理
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+ *
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+ * @author ruoyi
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+ */
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+public class XssHttpServletRequestWrapper extends HttpServletRequestWrapper {
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+ /**
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+ * @param request
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+ */
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+ public XssHttpServletRequestWrapper(HttpServletRequest request) {
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+ super(request);
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+ }
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+
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+ @Override
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+ public String getParameter(String name) {
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+ String value = super.getParameter(name);
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+ if (value == null) {
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+ return null;
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+ }
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+ return HtmlUtil.cleanHtmlTag(value).trim();
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+ }
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+
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+ @Override
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+ public Map<String, String[]> getParameterMap() {
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+ Map<String, String[]> valueMap = super.getParameterMap();
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+ if (MapUtil.isEmpty(valueMap)) {
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+ return valueMap;
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+ }
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+ // 避免某些容器不允许改参数的情况 copy一份重新改
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+ Map<String, String[]> map = new HashMap<>(valueMap.size());
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+ map.putAll(valueMap);
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+ for (Map.Entry<String, String[]> entry : map.entrySet()) {
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+ String[] values = entry.getValue();
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+ if (values != null) {
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+ int length = values.length;
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+ String[] escapseValues = new String[length];
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+ for (int i = 0; i < length; i++) {
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+ // 防xss攻击和过滤前后空格
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+ escapseValues[i] = HtmlUtil.cleanHtmlTag(values[i]).trim();
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+ }
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+ map.put(entry.getKey(), escapseValues);
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+ }
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+ }
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+ return map;
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+ }
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+
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+ @Override
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+ public String[] getParameterValues(String name) {
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+ String[] values = super.getParameterValues(name);
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+ if (ArrayUtil.isEmpty(values)) {
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+ return values;
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+ }
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+ int length = values.length;
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+ String[] escapseValues = new String[length];
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+ for (int i = 0; i < length; i++) {
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+ // 防xss攻击和过滤前后空格
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+ escapseValues[i] = HtmlUtil.cleanHtmlTag(values[i]).trim();
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+ }
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+ return escapseValues;
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+ }
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+
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+ @Override
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+ public ServletInputStream getInputStream() throws IOException {
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+ // 非json类型,直接返回
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+ if (!isJsonRequest()) {
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+ return super.getInputStream();
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+ }
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+
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+ // 为空,直接返回
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+ String json = StrUtil.str(IoUtil.readBytes(super.getInputStream(), false), StandardCharsets.UTF_8);
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+ if (StringUtils.isEmpty(json)) {
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+ return super.getInputStream();
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+ }
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+
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+ // xss过滤
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+ json = HtmlUtil.cleanHtmlTag(json).trim();
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+ byte[] jsonBytes = json.getBytes(StandardCharsets.UTF_8);
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+ final ByteArrayInputStream bis = IoUtil.toStream(jsonBytes);
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+ return new ServletInputStream() {
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+ @Override
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+ public boolean isFinished() {
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+ return true;
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+ }
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+
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+ @Override
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+ public boolean isReady() {
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+ return true;
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+ }
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+
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+ @Override
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+ public int available() throws IOException {
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+ return jsonBytes.length;
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+ }
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+
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+ @Override
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+ public void setReadListener(ReadListener readListener) {
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+ }
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+
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+ @Override
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+ public int read() throws IOException {
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+ return bis.read();
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+ }
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+ };
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+ }
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+
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+ /**
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+ * 是否是Json请求
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+ */
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+ public boolean isJsonRequest() {
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+ String header = super.getHeader(HttpHeaders.CONTENT_TYPE);
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+ return StringUtils.startsWithIgnoreCase(header, MediaType.APPLICATION_JSON_VALUE);
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+ }
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+}
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