init

devttl-common/src/main/java/com/devttl/common/xss/Xss.java

@@ -0,0 +1,27 @@
+package com.devttl.common.xss;
+
+import jakarta.validation.Constraint;
+import jakarta.validation.Payload;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * 自定义xss校验注解
+ * 
+ * @author devttl
+ */
+@Retention(RetentionPolicy.RUNTIME)
+@Target(value = { ElementType.METHOD, ElementType.FIELD, ElementType.CONSTRUCTOR, ElementType.PARAMETER })
+@Constraint(validatedBy = { XssValidator.class })
+public @interface Xss
+{
+    String message()
+
+    default "不允许任何脚本运行";
+
+    Class<?>[] groups() default {};
+
+    Class<? extends Payload>[] payload() default {};
+}

devttl-common/src/main/java/com/devttl/common/xss/XssValidator.java

@@ -0,0 +1,39 @@
+package com.devttl.common.xss;
+
+import com.devttl.common.utils.StringUtils;
+import jakarta.validation.ConstraintValidator;
+import jakarta.validation.ConstraintValidatorContext;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * 自定义xss校验注解实现
+ * 
+ * @author devttl
+ */
+public class XssValidator implements ConstraintValidator<Xss, String>
+{
+    private static final String HTML_PATTERN = "<(\\S*?)[^>]*>.*?|<.*? />";
+
+    @Override
+    public boolean isValid(String value, ConstraintValidatorContext constraintValidatorContext)
+    {
+        if (StringUtils.isBlank(value))
+        {
+            return true;
+        }
+        return !containsHtml(value);
+    }
+
+    public static boolean containsHtml(String value)
+    {
+        StringBuilder sHtml = new StringBuilder();
+        Pattern pattern = Pattern.compile(HTML_PATTERN);
+        Matcher matcher = pattern.matcher(value);
+        while (matcher.find())
+        {
+            sHtml.append(matcher.group());
+        }
+        return pattern.matcher(sHtml).matches();
+    }
+}