支持配置XSS跨站脚本过滤

ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/html/EscapeUtil.java

@@ -0,0 +1,155 @@
+package com.ruoyi.common.core.utils.html;
+
+import com.ruoyi.common.core.utils.StringUtils;
+
+/**
+ * 转义和反转义工具类
+ * 
+ * @author ruoyi
+ */
+public class EscapeUtil
+{
+    public static final String RE_HTML_MARK = "(<[^<]*?>)|(<[\\s]*?/[^<]*?>)|(<[^<]*?/[\\s]*?>)";
+
+    private static final char[][] TEXT = new char[64][];
+
+    static
+    {
+        for (int i = 0; i < 64; i++)
+        {
+            TEXT[i] = new char[] { (char) i };
+        }
+
+        // special HTML characters
+        TEXT['\''] = "&#039;".toCharArray(); // 单引号
+        TEXT['"'] = "&#34;".toCharArray(); // 双引号
+        TEXT['&'] = "&#38;".toCharArray(); // &符
+        TEXT['<'] = "&#60;".toCharArray(); // 小于号
+        TEXT['>'] = "&#62;".toCharArray(); // 大于号
+    }
+
+    /**
+     * 转义文本中的HTML字符为安全的字符
+     * 
+     * @param text 被转义的文本
+     * @return 转义后的文本
+     */
+    public static String escape(String text)
+    {
+        return encode(text);
+    }
+
+    /**
+     * 还原被转义的HTML特殊字符
+     * 
+     * @param content 包含转义符的HTML内容
+     * @return 转换后的字符串
+     */
+    public static String unescape(String content)
+    {
+        return decode(content);
+    }
+
+    /**
+     * 清除所有HTML标签，但是不删除标签内的内容
+     * 
+     * @param content 文本
+     * @return 清除标签后的文本
+     */
+    public static String clean(String content)
+    {
+        return new HTMLFilter().filter(content);
+    }
+
+    /**
+     * Escape编码
+     * 
+     * @param text 被编码的文本
+     * @return 编码后的字符
+     */
+    private static String encode(String text)
+    {
+        int len;
+        if ((text == null) || ((len = text.length()) == 0))
+        {
+            return StringUtils.EMPTY;
+        }
+        StringBuilder buffer = new StringBuilder(len + (len >> 2));
+        char c;
+        for (int i = 0; i < len; i++)
+        {
+            c = text.charAt(i);
+            if (c < 64)
+            {
+                buffer.append(TEXT[c]);
+            }
+            else
+            {
+                buffer.append(c);
+            }
+        }
+        return buffer.toString();
+    }
+
+    /**
+     * Escape解码
+     * 
+     * @param content 被转义的内容
+     * @return 解码后的字符串
+     */
+    public static String decode(String content)
+    {
+        if (StringUtils.isEmpty(content))
+        {
+            return content;
+        }
+
+        StringBuilder tmp = new StringBuilder(content.length());
+        int lastPos = 0, pos = 0;
+        char ch;
+        while (lastPos < content.length())
+        {
+            pos = content.indexOf("%", lastPos);
+            if (pos == lastPos)
+            {
+                if (content.charAt(pos + 1) == 'u')
+                {
+                    ch = (char) Integer.parseInt(content.substring(pos + 2, pos + 6), 16);
+                    tmp.append(ch);
+                    lastPos = pos + 6;
+                }
+                else
+                {
+                    ch = (char) Integer.parseInt(content.substring(pos + 1, pos + 3), 16);
+                    tmp.append(ch);
+                    lastPos = pos + 3;
+                }
+            }
+            else
+            {
+                if (pos == -1)
+                {
+                    tmp.append(content.substring(lastPos));
+                    lastPos = content.length();
+                }
+                else
+                {
+                    tmp.append(content.substring(lastPos, pos));
+                    lastPos = pos;
+                }
+            }
+        }
+        return tmp.toString();
+    }
+
+    public static void main(String[] args)
+    {
+        String html = "<script>alert(1);</script>";
+        // String html = "<scr<script>ipt>alert(\"XSS\")</scr<script>ipt>";
+        // String html = "<123";
+        // String html = "123>";
+        System.out.println(EscapeUtil.clean(html));
+        System.out.println(EscapeUtil.escape(html));
+        System.out.println(EscapeUtil.unescape(html));
+    }
+}

ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/html/HTMLFilter.java

@@ -0,0 +1,570 @@
+package com.ruoyi.common.core.utils.html;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * HTML过滤器，用于去除XSS漏洞隐患。
+ *
+ * @author ruoyi
+ */
+public final class HTMLFilter
+{
+    /**
+     * regex flag union representing /si modifiers in php
+     **/
+    private static final int REGEX_FLAGS_SI = Pattern.CASE_INSENSITIVE | Pattern.DOTALL;
+    private static final Pattern P_COMMENTS = Pattern.compile("<!--(.*?)-->", Pattern.DOTALL);
+    private static final Pattern P_COMMENT = Pattern.compile("^!--(.*)--$", REGEX_FLAGS_SI);
+    private static final Pattern P_TAGS = Pattern.compile("<(.*?)>", Pattern.DOTALL);
+    private static final Pattern P_END_TAG = Pattern.compile("^/([a-z0-9]+)", REGEX_FLAGS_SI);
+    private static final Pattern P_START_TAG = Pattern.compile("^([a-z0-9]+)(.*?)(/?)$", REGEX_FLAGS_SI);
+    private static final Pattern P_QUOTED_ATTRIBUTES = Pattern.compile("([a-z0-9]+)=([\"'])(.*?)\\2", REGEX_FLAGS_SI);
+    private static final Pattern P_UNQUOTED_ATTRIBUTES = Pattern.compile("([a-z0-9]+)(=)([^\"\\s']+)", REGEX_FLAGS_SI);
+    private static final Pattern P_PROTOCOL = Pattern.compile("^([^:]+):", REGEX_FLAGS_SI);
+    private static final Pattern P_ENTITY = Pattern.compile("&#(\\d+);?");
+    private static final Pattern P_ENTITY_UNICODE = Pattern.compile("&#x([0-9a-f]+);?");
+    private static final Pattern P_ENCODE = Pattern.compile("%([0-9a-f]{2});?");
+    private static final Pattern P_VALID_ENTITIES = Pattern.compile("&([^&;]*)(?=(;|&|$))");
+    private static final Pattern P_VALID_QUOTES = Pattern.compile("(>|^)([^<]+?)(<|$)", Pattern.DOTALL);
+    private static final Pattern P_END_ARROW = Pattern.compile("^>");
+    private static final Pattern P_BODY_TO_END = Pattern.compile("<([^>]*?)(?=<|$)");
+    private static final Pattern P_XML_CONTENT = Pattern.compile("(^|>)([^<]*?)(?=>)");
+    private static final Pattern P_STRAY_LEFT_ARROW = Pattern.compile("<([^>]*?)(?=<|$)");
+    private static final Pattern P_STRAY_RIGHT_ARROW = Pattern.compile("(^|>)([^<]*?)(?=>)");
+    private static final Pattern P_AMP = Pattern.compile("&");
+    private static final Pattern P_QUOTE = Pattern.compile("\"");
+    private static final Pattern P_LEFT_ARROW = Pattern.compile("<");
+    private static final Pattern P_RIGHT_ARROW = Pattern.compile(">");
+    private static final Pattern P_BOTH_ARROWS = Pattern.compile("<>");
+
+    // @xxx could grow large... maybe use sesat's ReferenceMap
+    private static final ConcurrentMap<String, Pattern> P_REMOVE_PAIR_BLANKS = new ConcurrentHashMap<>();
+    private static final ConcurrentMap<String, Pattern> P_REMOVE_SELF_BLANKS = new ConcurrentHashMap<>();
+
+    /**
+     * set of allowed html elements, along with allowed attributes for each element
+     **/
+    private final Map<String, List<String>> vAllowed;
+    /**
+     * counts of open tags for each (allowable) html element
+     **/
+    private final Map<String, Integer> vTagCounts = new HashMap<>();
+
+    /**
+     * html elements which must always be self-closing (e.g. "<img />")
+     **/
+    private final String[] vSelfClosingTags;
+    /**
+     * html elements which must always have separate opening and closing tags (e.g. "<b></b>")
+     **/
+    private final String[] vNeedClosingTags;
+    /**
+     * set of disallowed html elements
+     **/
+    private final String[] vDisallowed;
+    /**
+     * attributes which should be checked for valid protocols
+     **/
+    private final String[] vProtocolAtts;
+    /**
+     * allowed protocols
+     **/
+    private final String[] vAllowedProtocols;
+    /**
+     * tags which should be removed if they contain no content (e.g. "<b></b>" or "<b />")
+     **/
+    private final String[] vRemoveBlanks;
+    /**
+     * entities allowed within html markup
+     **/
+    private final String[] vAllowedEntities;
+    /**
+     * flag determining whether comments are allowed in input String.
+     */
+    private final boolean stripComment;
+    private final boolean encodeQuotes;
+    /**
+     * flag determining whether to try to make tags when presented with "unbalanced" angle brackets (e.g. "<b text </b>"
+     * becomes "<b> text </b>"). If set to false, unbalanced angle brackets will be html escaped.
+     */
+    private final boolean alwaysMakeTags;
+
+    /**
+     * Default constructor.
+     */
+    public HTMLFilter()
+    {
+        vAllowed = new HashMap<>();
+
+        final ArrayList<String> a_atts = new ArrayList<>();
+        a_atts.add("href");
+        a_atts.add("target");
+        vAllowed.put("a", a_atts);
+
+        final ArrayList<String> img_atts = new ArrayList<>();
+        img_atts.add("src");
+        img_atts.add("width");
+        img_atts.add("height");
+        img_atts.add("alt");
+        vAllowed.put("img", img_atts);
+
+        final ArrayList<String> no_atts = new ArrayList<>();
+        vAllowed.put("b", no_atts);
+        vAllowed.put("strong", no_atts);
+        vAllowed.put("i", no_atts);
+        vAllowed.put("em", no_atts);
+
+        vSelfClosingTags = new String[] { "img" };
+        vNeedClosingTags = new String[] { "a", "b", "strong", "i", "em" };
+        vDisallowed = new String[] {};
+        vAllowedProtocols = new String[] { "http", "mailto", "https" }; // no ftp.
+        vProtocolAtts = new String[] { "src", "href" };
+        vRemoveBlanks = new String[] { "a", "b", "strong", "i", "em" };
+        vAllowedEntities = new String[] { "amp", "gt", "lt", "quot" };
+        stripComment = true;
+        encodeQuotes = true;
+        alwaysMakeTags = false;
+    }
+
+    /**
+     * Map-parameter configurable constructor.
+     *
+     * @param conf map containing configuration. keys match field names.
+     */
+    @SuppressWarnings("unchecked")
+    public HTMLFilter(final Map<String, Object> conf)
+    {
+
+        assert conf.containsKey("vAllowed") : "configuration requires vAllowed";
+        assert conf.containsKey("vSelfClosingTags") : "configuration requires vSelfClosingTags";
+        assert conf.containsKey("vNeedClosingTags") : "configuration requires vNeedClosingTags";
+        assert conf.containsKey("vDisallowed") : "configuration requires vDisallowed";
+        assert conf.containsKey("vAllowedProtocols") : "configuration requires vAllowedProtocols";
+        assert conf.containsKey("vProtocolAtts") : "configuration requires vProtocolAtts";
+        assert conf.containsKey("vRemoveBlanks") : "configuration requires vRemoveBlanks";
+        assert conf.containsKey("vAllowedEntities") : "configuration requires vAllowedEntities";
+
+        vAllowed = Collections.unmodifiableMap((HashMap<String, List<String>>) conf.get("vAllowed"));
+        vSelfClosingTags = (String[]) conf.get("vSelfClosingTags");
+        vNeedClosingTags = (String[]) conf.get("vNeedClosingTags");
+        vDisallowed = (String[]) conf.get("vDisallowed");
+        vAllowedProtocols = (String[]) conf.get("vAllowedProtocols");
+        vProtocolAtts = (String[]) conf.get("vProtocolAtts");
+        vRemoveBlanks = (String[]) conf.get("vRemoveBlanks");
+        vAllowedEntities = (String[]) conf.get("vAllowedEntities");
+        stripComment = conf.containsKey("stripComment") ? (Boolean) conf.get("stripComment") : true;
+        encodeQuotes = conf.containsKey("encodeQuotes") ? (Boolean) conf.get("encodeQuotes") : true;
+        alwaysMakeTags = conf.containsKey("alwaysMakeTags") ? (Boolean) conf.get("alwaysMakeTags") : true;
+    }
+
+    private void reset()
+    {
+        vTagCounts.clear();
+    }
+
+    // ---------------------------------------------------------------
+    // my versions of some PHP library functions
+    public static String chr(final int decimal)
+    {
+        return String.valueOf((char) decimal);
+    }
+
+    public static String htmlSpecialChars(final String s)
+    {
+        String result = s;
+        result = regexReplace(P_AMP, "&amp;", result);
+        result = regexReplace(P_QUOTE, "&quot;", result);
+        result = regexReplace(P_LEFT_ARROW, "&lt;", result);
+        result = regexReplace(P_RIGHT_ARROW, "&gt;", result);
+        return result;
+    }
+
+    // ---------------------------------------------------------------
+
+    /**
+     * given a user submitted input String, filter out any invalid or restricted html.
+     *
+     * @param input text (i.e. submitted by a user) than may contain html
+     * @return "clean" version of input, with only valid, whitelisted html elements allowed
+     */
+    public String filter(final String input)
+    {
+        reset();
+        String s = input;
+
+        s = escapeComments(s);
+
+        s = balanceHTML(s);
+
+        s = checkTags(s);
+
+        s = processRemoveBlanks(s);
+
+        // s = validateEntities(s);
+
+        return s;
+    }
+
+    public boolean isAlwaysMakeTags()
+    {
+        return alwaysMakeTags;
+    }
+
+    public boolean isStripComments()
+    {
+        return stripComment;
+    }
+
+    private String escapeComments(final String s)
+    {
+        final Matcher m = P_COMMENTS.matcher(s);
+        final StringBuffer buf = new StringBuffer();
+        if (m.find())
+        {
+            final String match = m.group(1); // (.*?)
+            m.appendReplacement(buf, Matcher.quoteReplacement("<!--" + htmlSpecialChars(match) + "-->"));
+        }
+        m.appendTail(buf);
+
+        return buf.toString();
+    }
+
+    private String balanceHTML(String s)
+    {
+        if (alwaysMakeTags)
+        {
+            //
+            // try and form html
+            //
+            s = regexReplace(P_END_ARROW, "", s);
+            // 不追加结束标签
+            s = regexReplace(P_BODY_TO_END, "<$1>", s);
+            s = regexReplace(P_XML_CONTENT, "$1<$2", s);
+
+        }
+        else
+        {
+            //
+            // escape stray brackets
+            //
+            s = regexReplace(P_STRAY_LEFT_ARROW, "&lt;$1", s);
+            s = regexReplace(P_STRAY_RIGHT_ARROW, "$1$2&gt;<", s);
+
+            //
+            // the last regexp causes '<>' entities to appear
+            // (we need to do a lookahead assertion so that the last bracket can
+            // be used in the next pass of the regexp)
+            //
+            s = regexReplace(P_BOTH_ARROWS, "", s);
+        }
+
+        return s;
+    }
+
+    private String checkTags(String s)
+    {
+        Matcher m = P_TAGS.matcher(s);
+
+        final StringBuffer buf = new StringBuffer();
+        while (m.find())
+        {
+            String replaceStr = m.group(1);
+            replaceStr = processTag(replaceStr);
+            m.appendReplacement(buf, Matcher.quoteReplacement(replaceStr));
+        }
+        m.appendTail(buf);
+
+        // these get tallied in processTag
+        // (remember to reset before subsequent calls to filter method)
+        final StringBuilder sBuilder = new StringBuilder(buf.toString());
+        for (String key : vTagCounts.keySet())
+        {
+            for (int ii = 0; ii < vTagCounts.get(key); ii++)
+            {
+                sBuilder.append("</").append(key).append(">");
+            }
+        }
+        s = sBuilder.toString();
+
+        return s;
+    }
+
+    private String processRemoveBlanks(final String s)
+    {
+        String result = s;
+        for (String tag : vRemoveBlanks)
+        {
+            if (!P_REMOVE_PAIR_BLANKS.containsKey(tag))
+            {
+                P_REMOVE_PAIR_BLANKS.putIfAbsent(tag, Pattern.compile("<" + tag + "(\\s[^>]*)?></" + tag + ">"));
+            }
+            result = regexReplace(P_REMOVE_PAIR_BLANKS.get(tag), "", result);
+            if (!P_REMOVE_SELF_BLANKS.containsKey(tag))
+            {
+                P_REMOVE_SELF_BLANKS.putIfAbsent(tag, Pattern.compile("<" + tag + "(\\s[^>]*)?/>"));
+            }
+            result = regexReplace(P_REMOVE_SELF_BLANKS.get(tag), "", result);
+        }
+
+        return result;
+    }
+
+    private static String regexReplace(final Pattern regex_pattern, final String replacement, final String s)
+    {
+        Matcher m = regex_pattern.matcher(s);
+        return m.replaceAll(replacement);
+    }
+
+    private String processTag(final String s)
+    {
+        // ending tags
+        Matcher m = P_END_TAG.matcher(s);
+        if (m.find())
+        {
+            final String name = m.group(1).toLowerCase();
+            if (allowed(name))
+            {
+                if (false == inArray(name, vSelfClosingTags))
+                {
+                    if (vTagCounts.containsKey(name))
+                    {
+                        vTagCounts.put(name, vTagCounts.get(name) - 1);
+                        return "</" + name + ">";
+                    }
+                }
+            }
+        }
+
+        // starting tags
+        m = P_START_TAG.matcher(s);
+        if (m.find())
+        {
+            final String name = m.group(1).toLowerCase();
+            final String body = m.group(2);
+            String ending = m.group(3);
+
+            // debug( "in a starting tag, name='" + name + "'; body='" + body + "'; ending='" + ending + "'" );
+            if (allowed(name))
+            {
+                final StringBuilder params = new StringBuilder();
+
+                final Matcher m2 = P_QUOTED_ATTRIBUTES.matcher(body);
+                final Matcher m3 = P_UNQUOTED_ATTRIBUTES.matcher(body);
+                final List<String> paramNames = new ArrayList<>();
+                final List<String> paramValues = new ArrayList<>();
+                while (m2.find())
+                {
+                    paramNames.add(m2.group(1)); // ([a-z0-9]+)
+                    paramValues.add(m2.group(3)); // (.*?)
+                }
+                while (m3.find())
+                {
+                    paramNames.add(m3.group(1)); // ([a-z0-9]+)
+                    paramValues.add(m3.group(3)); // ([^\"\\s']+)
+                }
+
+                String paramName, paramValue;
+                for (int ii = 0; ii < paramNames.size(); ii++)
+                {
+                    paramName = paramNames.get(ii).toLowerCase();
+                    paramValue = paramValues.get(ii);
+
+                    // debug( "paramName='" + paramName + "'" );
+                    // debug( "paramValue='" + paramValue + "'" );
+                    // debug( "allowed? " + vAllowed.get( name ).contains( paramName ) );
+
+                    if (allowedAttribute(name, paramName))
+                    {
+                        if (inArray(paramName, vProtocolAtts))
+                        {
+                            paramValue = processParamProtocol(paramValue);
+                        }
+                        params.append(' ').append(paramName).append("=\"").append(paramValue).append("\"");
+                    }
+                }
+
+                if (inArray(name, vSelfClosingTags))
+                {
+                    ending = " /";
+                }
+
+                if (inArray(name, vNeedClosingTags))
+                {
+                    ending = "";
+                }
+
+                if (ending == null || ending.length() < 1)
+                {
+                    if (vTagCounts.containsKey(name))
+                    {
+                        vTagCounts.put(name, vTagCounts.get(name) + 1);
+                    }
+                    else
+                    {
+                        vTagCounts.put(name, 1);
+                    }
+                }
+                else
+                {
+                    ending = " /";
+                }
+                return "<" + name + params + ending + ">";
+            }
+            else
+            {
+                return "";
+            }
+        }
+
+        // comments
+        m = P_COMMENT.matcher(s);
+        if (!stripComment && m.find())
+        {
+            return "<" + m.group() + ">";
+        }
+
+        return "";
+    }
+
+    private String processParamProtocol(String s)
+    {
+        s = decodeEntities(s);
+        final Matcher m = P_PROTOCOL.matcher(s);
+        if (m.find())
+        {
+            final String protocol = m.group(1);
+            if (!inArray(protocol, vAllowedProtocols))
+            {
+                // bad protocol, turn into local anchor link instead
+                s = "#" + s.substring(protocol.length() + 1);
+                if (s.startsWith("#//"))
+                {
+                    s = "#" + s.substring(3);
+                }
+            }
+        }
+
+        return s;
+    }
+
+    private String decodeEntities(String s)
+    {
+        StringBuffer buf = new StringBuffer();
+
+        Matcher m = P_ENTITY.matcher(s);
+        while (m.find())
+        {
+            final String match = m.group(1);
+            final int decimal = Integer.decode(match).intValue();
+            m.appendReplacement(buf, Matcher.quoteReplacement(chr(decimal)));
+        }
+        m.appendTail(buf);
+        s = buf.toString();
+
+        buf = new StringBuffer();
+        m = P_ENTITY_UNICODE.matcher(s);
+        while (m.find())
+        {
+            final String match = m.group(1);
+            final int decimal = Integer.valueOf(match, 16).intValue();
+            m.appendReplacement(buf, Matcher.quoteReplacement(chr(decimal)));
+        }
+        m.appendTail(buf);
+        s = buf.toString();
+
+        buf = new StringBuffer();
+        m = P_ENCODE.matcher(s);
+        while (m.find())
+        {
+            final String match = m.group(1);
+            final int decimal = Integer.valueOf(match, 16).intValue();
+            m.appendReplacement(buf, Matcher.quoteReplacement(chr(decimal)));
+        }
+        m.appendTail(buf);
+        s = buf.toString();
+
+        s = validateEntities(s);
+        return s;
+    }
+
+    private String validateEntities(final String s)
+    {
+        StringBuffer buf = new StringBuffer();
+
+        // validate entities throughout the string
+        Matcher m = P_VALID_ENTITIES.matcher(s);
+        while (m.find())
+        {
+            final String one = m.group(1); // ([^&;]*)
+            final String two = m.group(2); // (?=(;|&|$))
+            m.appendReplacement(buf, Matcher.quoteReplacement(checkEntity(one, two)));
+        }
+        m.appendTail(buf);
+
+        return encodeQuotes(buf.toString());
+    }
+
+    private String encodeQuotes(final String s)
+    {
+        if (encodeQuotes)
+        {
+            StringBuffer buf = new StringBuffer();
+            Matcher m = P_VALID_QUOTES.matcher(s);
+            while (m.find())
+            {
+                final String one = m.group(1); // (>|^)
+                final String two = m.group(2); // ([^<]+?)
+                final String three = m.group(3); // (<|$)
+                // 不替换双引号为&quot;，防止json格式无效 regexReplace(P_QUOTE, "&quot;", two)
+                m.appendReplacement(buf, Matcher.quoteReplacement(one + two + three));
+            }
+            m.appendTail(buf);
+            return buf.toString();
+        }
+        else
+        {
+            return s;
+        }
+    }
+
+    private String checkEntity(final String preamble, final String term)
+    {
+
+        return ";".equals(term) && isValidEntity(preamble) ? '&' + preamble : "&amp;" + preamble;
+    }
+
+    private boolean isValidEntity(final String entity)
+    {
+        return inArray(entity, vAllowedEntities);
+    }
+
+    private static boolean inArray(final String s, final String[] array)
+    {
+        for (String item : array)
+        {
+            if (item != null && item.equals(s))
+            {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private boolean allowed(final String name)
+    {
+        return (vAllowed.isEmpty() || vAllowed.containsKey(name)) && !inArray(name, vDisallowed);
+    }
+
+    private boolean allowedAttribute(final String name, final String paramName)
+    {
+        return allowed(name) && (vAllowed.isEmpty() || vAllowed.get(name).contains(paramName));
+    }
+}

ruoyi-gateway/src/main/java/com/ruoyi/gateway/config/properties/CaptchaProperties.java

@@ -17,19 +17,19 @@ public class CaptchaProperties
     /**
      * 验证码开关
      */
-    private boolean enabled;
+    private Boolean enabled;
 
     /**
      * 验证码类型（math 数组计算 char 字符）
      */
     private String type;
 
-    public boolean isEnabled()
+    public Boolean getEnabled()
     {
         return enabled;
     }
 
-    public void setEnabled(boolean enabled)
+    public void setEnabled(Boolean enabled)
     {
         this.enabled = enabled;
     }

ruoyi-gateway/src/main/java/com/ruoyi/gateway/config/properties/IgnoreWhiteProperties.java

@@ -13,7 +13,7 @@ import org.springframework.context.annotation.Configuration;
  */
 @Configuration
 @RefreshScope
-@ConfigurationProperties(prefix = "ignore")
+@ConfigurationProperties(prefix = "security.ignore")
 public class IgnoreWhiteProperties
 {
     /**

ruoyi-gateway/src/main/java/com/ruoyi/gateway/config/properties/XssProperties.java

@@ -0,0 +1,48 @@
+package com.ruoyi.gateway.config.properties;
+
+import java.util.ArrayList;
+import java.util.List;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.cloud.context.config.annotation.RefreshScope;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * XSS跨站脚本配置
+ * 
+ * @author ruoyi
+ */
+@Configuration
+@RefreshScope
+@ConfigurationProperties(prefix = "security.xss")
+public class XssProperties
+{
+    /**
+     * Xss开关
+     */
+    private Boolean enabled;
+
+    /**
+     * 排除路径
+     */
+    private List<String> excludeUrls = new ArrayList<>();
+
+    public Boolean getEnabled()
+    {
+        return enabled;
+    }
+
+    public void setEnabled(Boolean enabled)
+    {
+        this.enabled = enabled;
+    }
+
+    public List<String> getExcludeUrls()
+    {
+        return excludeUrls;
+    }
+
+    public void setExcludeUrls(List<String> excludeUrls)
+    {
+        this.excludeUrls = excludeUrls;
+    }
+}

ruoyi-gateway/src/main/java/com/ruoyi/gateway/filter/CacheRequestFilter.java

@@ -16,6 +16,11 @@ import org.springframework.web.server.ServerWebExchange;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 
+/**
+ * 获取body请求数据（解决流不能重复读取问题）
+ * 
+ * @author ruoyi
+ */
 @Component
 public class CacheRequestFilter extends AbstractGatewayFilterFactory<CacheRequestFilter.Config>
 {

ruoyi-gateway/src/main/java/com/ruoyi/gateway/filter/ValidateCodeFilter.java

@@ -47,7 +47,7 @@ public class ValidateCodeFilter extends AbstractGatewayFilterFactory<Object>
             ServerHttpRequest request = exchange.getRequest();
 
             // 非登录请求或验证码关闭，不处理
-            if (!StringUtils.containsIgnoreCase(request.getURI().getPath(), AUTH_URL) || !captchaProperties.isEnabled())
+            if (!StringUtils.containsIgnoreCase(request.getURI().getPath(), AUTH_URL) || !captchaProperties.getEnabled())
             {
                 return chain.filter(exchange);
             }

ruoyi-gateway/src/main/java/com/ruoyi/gateway/filter/XssFilter.java

@@ -0,0 +1,101 @@
+package com.ruoyi.gateway.filter;
+
+import java.nio.charset.StandardCharsets;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.cloud.gateway.filter.GatewayFilterChain;
+import org.springframework.cloud.gateway.filter.GlobalFilter;
+import org.springframework.core.Ordered;
+import org.springframework.core.io.buffer.DataBuffer;
+import org.springframework.core.io.buffer.DataBufferUtils;
+import org.springframework.core.io.buffer.NettyDataBufferFactory;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.server.reactive.ServerHttpRequest;
+import org.springframework.http.server.reactive.ServerHttpRequestDecorator;
+import org.springframework.stereotype.Component;
+import org.springframework.web.server.ServerWebExchange;
+import com.ruoyi.common.core.utils.StringUtils;
+import com.ruoyi.common.core.utils.html.EscapeUtil;
+import com.ruoyi.gateway.config.properties.XssProperties;
+import io.netty.buffer.ByteBufAllocator;
+import reactor.core.publisher.Flux;
+import reactor.core.publisher.Mono;
+
+/**
+ * 跨站脚本过滤器
+ *
+ * @author ruoyi
+ */
+@Component
+public class XssFilter implements GlobalFilter, Ordered
+{
+    // 跨站脚本的 xss 配置，nacos自行添加
+    @Autowired
+    private XssProperties xss;
+
+    @Override
+    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain)
+    {
+        ServerHttpRequest request = exchange.getRequest();
+        // GET DELETE 不过滤
+        HttpMethod method = request.getMethod();
+        if (method == null || method.matches("GET") || method.matches("DELETE"))
+        {
+            return chain.filter(exchange);
+        }
+        // excludeUrls 不过滤
+        String url = request.getURI().getPath();
+        if (StringUtils.matches(url, xss.getExcludeUrls()))
+        {
+            return chain.filter(exchange);
+        }
+        ServerHttpRequestDecorator httpRequestDecorator = requestDecorator(exchange);
+        return chain.filter(exchange.mutate().request(httpRequestDecorator).build());
+
+    }
+
+    private ServerHttpRequestDecorator requestDecorator(ServerWebExchange exchange)
+    {
+        ServerHttpRequestDecorator serverHttpRequestDecorator = new ServerHttpRequestDecorator(exchange.getRequest())
+        {
+            @Override
+            public Flux<DataBuffer> getBody()
+            {
+                Flux<DataBuffer> body = super.getBody();
+                return body.map(dataBuffer -> {
+                    byte[] content = new byte[dataBuffer.readableByteCount()];
+                    dataBuffer.read(content);
+                    DataBufferUtils.release(dataBuffer);
+                    String bodyStr = new String(content, StandardCharsets.UTF_8);
+                    // 防xss攻击过滤
+                    bodyStr = EscapeUtil.clean(bodyStr);
+                    // 转成字节
+                    byte[] bytes = bodyStr.getBytes();
+                    NettyDataBufferFactory nettyDataBufferFactory = new NettyDataBufferFactory(ByteBufAllocator.DEFAULT);
+                    DataBuffer buffer = nettyDataBufferFactory.allocateBuffer(bytes.length);
+                    buffer.write(bytes);
+                    return buffer;
+                });
+            }
+
+            @Override
+            public HttpHeaders getHeaders()
+            {
+                HttpHeaders httpHeaders = new HttpHeaders();
+                httpHeaders.putAll(super.getHeaders());
+                // 由于修改了请求体的body，导致content-length长度不确定，因此需要删除原先的content-length
+                httpHeaders.remove(HttpHeaders.CONTENT_LENGTH);
+                httpHeaders.set(HttpHeaders.TRANSFER_ENCODING, "chunked");
+                return httpHeaders;
+            }
+
+        };
+        return serverHttpRequestDecorator;
+    }
+
+    @Override
+    public int getOrder()
+    {
+        return -100;
+    }
+}

ruoyi-gateway/src/main/java/com/ruoyi/gateway/service/impl/ValidateCodeServiceImpl.java

@@ -46,7 +46,7 @@ public class ValidateCodeServiceImpl implements ValidateCodeService
     public AjaxResult createCapcha() throws IOException, CaptchaException
     {
         AjaxResult ajax = AjaxResult.success();
-        boolean captchaOnOff = captchaProperties.isEnabled();
+        boolean captchaOnOff = captchaProperties.getEnabled();
         ajax.put("captchaOnOff", captchaOnOff);
         if (!captchaOnOff)
         {