| | |
| | | package com.ruoyi.common.utils.sql;
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| | |
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| | | import com.ruoyi.common.exception.UtilException;
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| | | import com.ruoyi.common.utils.StringUtils;
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| | |
|
| | | /**
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| | | * sql操作工具类
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| | | * |
| | | * @author ruoyi
|
| | | */
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| | | public class SqlUtil
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| | | {
|
| | | /**
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| | | * 定义常用的 sql关键字
|
| | | */
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| | | public static String SQL_REGEX = "select |insert |delete |update |drop |count |exec |chr |mid |master |truncate |char |and |declare ";
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| | |
|
| | | /**
|
| | | * 仅支持字母、数字、下划线、空格、逗号、小数点(支持多个字段排序)
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| | | */
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| | | public static String SQL_PATTERN = "[a-zA-Z0-9_\\ \\,\\.]+";
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| | |
|
| | | /**
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| | | * 检查字符,防止注入绕过
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| | | */
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| | | public static String escapeOrderBySql(String value)
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| | | {
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| | | if (StringUtils.isNotEmpty(value) && !isValidOrderBySql(value))
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| | | {
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| | | throw new UtilException("参数不符合规范,不能进行查询");
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| | | }
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| | | return value;
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| | | }
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| | |
|
| | | /**
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| | | * 验证 order by 语法是否符合规范
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| | | */
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| | | public static boolean isValidOrderBySql(String value)
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| | | {
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| | | return value.matches(SQL_PATTERN);
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| | | }
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| | |
|
| | | /**
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| | | * SQL关键字检查
|
| | | */
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| | | public static void filterKeyword(String value)
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| | | {
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| | | if (StringUtils.isEmpty(value))
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| | | {
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| | | return;
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| | | }
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| | | String[] sqlKeywords = StringUtils.split(SQL_REGEX, "\\|");
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| | | for (int i = 0; i < sqlKeywords.length; i++)
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| | | {
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| | | if (StringUtils.indexOfIgnoreCase(value, sqlKeywords[i]) > -1)
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| | | {
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| | | throw new UtilException("参数存在SQL注入风险");
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| | | }
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| | | }
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| | | }
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| | | }
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| | | package com.ruoyi.common.utils.sql; |
| | | |
| | | import com.ruoyi.common.exception.UtilException; |
| | | import com.ruoyi.common.utils.StringUtils; |
| | | import lombok.AccessLevel; |
| | | import lombok.NoArgsConstructor; |
| | | |
| | | /** |
| | | * sql操作工具类 |
| | | * |
| | | * @author ruoyi |
| | | */ |
| | | @NoArgsConstructor(access = AccessLevel.PRIVATE) |
| | | public class SqlUtil { |
| | | |
| | | /** |
| | | * 定义常用的 sql关键字 |
| | | */ |
| | | public static String SQL_REGEX = "select |insert |delete |update |drop |count |exec |chr |mid |master |truncate |char |and |declare "; |
| | | |
| | | /** |
| | | * 仅支持字母、数字、下划线、空格、逗号、小数点(支持多个字段排序) |
| | | */ |
| | | public static final String SQL_PATTERN = "[a-zA-Z0-9_\\ \\,\\.]+"; |
| | | |
| | | /** |
| | | * 检查字符,防止注入绕过 |
| | | */ |
| | | public static String escapeOrderBySql(String value) { |
| | | if (StringUtils.isNotEmpty(value) && !isValidOrderBySql(value)) { |
| | | throw new UtilException("参数不符合规范,不能进行查询"); |
| | | } |
| | | return value; |
| | | } |
| | | |
| | | /** |
| | | * 验证 order by 语法是否符合规范 |
| | | */ |
| | | public static boolean isValidOrderBySql(String value) { |
| | | return value.matches(SQL_PATTERN); |
| | | } |
| | | |
| | | /** |
| | | * SQL关键字检查 |
| | | */ |
| | | public static void filterKeyword(String value) { |
| | | if (StringUtils.isEmpty(value)) { |
| | | return; |
| | | } |
| | | String[] sqlKeywords = StringUtils.split(SQL_REGEX, "\\|"); |
| | | for (String sqlKeyword : sqlKeywords) { |
| | | if (StringUtils.indexOfIgnoreCase(value, sqlKeyword) > -1) { |
| | | throw new UtilException("参数存在SQL注入风险"); |
| | | } |
| | | } |
| | | } |
| | | } |