feat：增加租户切换的能力

yudao-framework/yudao-spring-boot-starter-biz-data-permission/src/main/java/cn/iocoder/yudao/framework/datapermission/core/db/DataPermissionRuleHandler.java

@@ -12,6 +12,8 @@ import net.sf.jsqlparser.schema.Table;
 
 import java.util.List;
 
+import static cn.iocoder.yudao.framework.security.core.util.SecurityFrameworkUtils.skipPermissionCheck;
+
 /**
  * 基于 {@link DataPermissionRule} 的数据权限处理器
  *
@@ -27,6 +29,11 @@ public class DataPermissionRuleHandler implements MultiDataPermissionHandler {
 
     @Override
     public Expression getSqlSegment(Table table, Expression where, String mappedStatementId) {
+        // 特殊：跨租户访问
+        if (skipPermissionCheck()) {
+            return null;
+        }
+
         // 获得 Mapper 对应的数据权限的规则
         List<DataPermissionRule> rules = ruleFactory.getDataPermissionRule(mappedStatementId);
         if (CollUtil.isEmpty(rules)) {

yudao-framework/yudao-spring-boot-starter-biz-data-permission/src/main/java/cn/iocoder/yudao/framework/datapermission/core/util/DataPermissionUtils.java

@@ -32,13 +32,12 @@ public class DataPermissionUtils {
      * @param runnable 逻辑
      */
     public static void executeIgnore(Runnable runnable) {
-        DataPermission dataPermission = getDisableDataPermissionDisable();
-        DataPermissionContextHolder.add(dataPermission);
+        addDisableDataPermission();
         try {
             // 执行 runnable
             runnable.run();
         } finally {
-            DataPermissionContextHolder.remove();
+            removeDataPermission();
         }
     }
 
@@ -50,14 +49,25 @@ public class DataPermissionUtils {
      */
     @SneakyThrows
     public static <T> T executeIgnore(Callable<T> callable) {
-        DataPermission dataPermission = getDisableDataPermissionDisable();
-        DataPermissionContextHolder.add(dataPermission);
+        addDisableDataPermission();
         try {
             // 执行 callable
             return callable.call();
         } finally {
-            DataPermissionContextHolder.remove();
+            removeDataPermission();
         }
     }
 
+    /**
+     * 添加忽略数据权限
+     */
+    public static void addDisableDataPermission(){
+        DataPermission dataPermission = getDisableDataPermissionDisable();
+        DataPermissionContextHolder.add(dataPermission);
+    }
+
+    public static void removeDataPermission(){
+        DataPermissionContextHolder.remove();
+    }
+
 }

yudao-framework/yudao-spring-boot-starter-biz-tenant/src/main/java/cn/iocoder/yudao/framework/tenant/config/TenantProperties.java

@@ -33,6 +33,13 @@ public class TenantProperties {
      */
     private Set<String> ignoreUrls = new HashSet<>();
 
+    /**
+     * 需要忽略跨（切换）租户访问的请求
+     *
+     * 原因是：某些接口，访问的是个人信息，在跨租户是获取不到的！
+     */
+    private Set<String> ignoreVisitUrls = Collections.emptySet();
+
     /**
      * 需要忽略多租户的表
      *

yudao-framework/yudao-spring-boot-starter-biz-tenant/src/main/java/cn/iocoder/yudao/framework/tenant/config/YudaoTenantAutoConfiguration.java

@@ -3,6 +3,7 @@ package cn.iocoder.yudao.framework.tenant.config;
 import cn.iocoder.yudao.framework.common.enums.WebFilterOrderEnum;
 import cn.iocoder.yudao.framework.mybatis.core.util.MyBatisUtils;
 import cn.iocoder.yudao.framework.redis.config.YudaoCacheProperties;
+import cn.iocoder.yudao.framework.security.core.service.SecurityFrameworkService;
 import cn.iocoder.yudao.framework.tenant.core.aop.TenantIgnore;
 import cn.iocoder.yudao.framework.tenant.core.aop.TenantIgnoreAspect;
 import cn.iocoder.yudao.framework.tenant.core.db.TenantDatabaseInterceptor;
@@ -15,6 +16,7 @@ import cn.iocoder.yudao.framework.tenant.core.security.TenantSecurityWebFilter;
 import cn.iocoder.yudao.framework.tenant.core.service.TenantFrameworkService;
 import cn.iocoder.yudao.framework.tenant.core.service.TenantFrameworkServiceImpl;
 import cn.iocoder.yudao.framework.tenant.core.web.TenantContextWebFilter;
+import cn.iocoder.yudao.framework.tenant.core.web.TenantVisitContextInterceptor;
 import cn.iocoder.yudao.framework.web.config.WebProperties;
 import cn.iocoder.yudao.framework.web.core.handler.GlobalExceptionHandler;
 import cn.iocoder.yudao.module.system.api.tenant.TenantApi;
@@ -37,6 +39,8 @@ import org.springframework.data.redis.cache.RedisCacheWriter;
 import org.springframework.data.redis.connection.RedisConnectionFactory;
 import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.web.method.HandlerMethod;
+import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 import org.springframework.web.servlet.mvc.method.RequestMappingInfo;
 import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;
 import org.springframework.web.util.pattern.PathPattern;
@@ -116,6 +120,25 @@ public class YudaoTenantAutoConfiguration {
         }
     }
 
+    @Bean
+    public TenantVisitContextInterceptor tenantVisitContextInterceptor(TenantProperties tenantProperties,
+                                                                       SecurityFrameworkService securityFrameworkService) {
+        return new TenantVisitContextInterceptor(tenantProperties, securityFrameworkService);
+    }
+
+    @Bean
+    public WebMvcConfigurer tenantWebMvcConfigurer(TenantProperties tenantProperties,
+                                                   TenantVisitContextInterceptor tenantVisitContextInterceptor) {
+        return new WebMvcConfigurer() {
+
+            @Override
+            public void addInterceptors(InterceptorRegistry registry) {
+                registry.addInterceptor(tenantVisitContextInterceptor)
+                        .excludePathPatterns(tenantProperties.getIgnoreVisitUrls().toArray(new String[0]));
+            }
+        };
+    }
+
     // ========== Security ==========
 
     @Bean
@@ -183,4 +206,5 @@ public class YudaoTenantAutoConfiguration {
         // 创建 TenantRedisCacheManager 对象
         return new TenantRedisCacheManager(cacheWriter, redisCacheConfiguration, tenantProperties.getIgnoreCaches());
     }
+
 }

yudao-framework/yudao-spring-boot-starter-biz-tenant/src/main/java/cn/iocoder/yudao/framework/tenant/core/web/TenantVisitContextInterceptor.java

@@ -0,0 +1,65 @@
+package cn.iocoder.yudao.framework.tenant.core.web;
+
+import cn.hutool.core.util.ObjUtil;
+import cn.iocoder.yudao.framework.common.exception.enums.GlobalErrorCodeConstants;
+import cn.iocoder.yudao.framework.security.core.LoginUser;
+import cn.iocoder.yudao.framework.security.core.service.SecurityFrameworkService;
+import cn.iocoder.yudao.framework.security.core.util.SecurityFrameworkUtils;
+import cn.iocoder.yudao.framework.tenant.config.TenantProperties;
+import cn.iocoder.yudao.framework.tenant.core.context.TenantContextHolder;
+import cn.iocoder.yudao.framework.web.core.util.WebFrameworkUtils;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.web.servlet.HandlerInterceptor;
+
+import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception0;
+
+@RequiredArgsConstructor
+@Slf4j
+public class TenantVisitContextInterceptor implements HandlerInterceptor {
+
+    private static final String PERMISSION = "system:tenant:visit";
+
+    private final TenantProperties tenantProperties;
+
+    private final SecurityFrameworkService securityFrameworkService;
+
+    @Override
+    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) {
+        // 如果和当前租户编号一致，则直接跳过
+        Long visitTenantId = WebFrameworkUtils.getVisitTenantId(request);
+        if (visitTenantId == null) {
+            return true;
+        }
+        if (ObjUtil.equal(visitTenantId, TenantContextHolder.getTenantId())) {
+            return true;
+        }
+        // 必须是登录用户
+        LoginUser loginUser = SecurityFrameworkUtils.getLoginUser();
+        if (loginUser == null) {
+            return true;
+        }
+
+        // 校验用户是否可切换租户
+        if (!securityFrameworkService.hasAnyPermissions(PERMISSION)) {
+            throw exception0(GlobalErrorCodeConstants.FORBIDDEN.getCode(), "您无权切换租户");
+        }
+
+        // 【重点】切换租户编号
+        loginUser.setVisitTenantId(visitTenantId);
+        TenantContextHolder.setTenantId(visitTenantId);
+        return true;
+    }
+
+    @Override
+    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {
+        // 【重点】清理切换，换回原租户编号
+        LoginUser loginUser = SecurityFrameworkUtils.getLoginUser();
+        if (loginUser != null && loginUser.getTenantId() != null) {
+            TenantContextHolder.setTenantId(loginUser.getTenantId());
+        }
+    }
+
+}

yudao-framework/yudao-spring-boot-starter-security/src/main/java/cn/iocoder/yudao/framework/security/core/LoginUser.java

@@ -56,6 +56,10 @@ public class LoginUser {
      */
     @JsonIgnore
     private Map<String, Object> context;
+    /**
+     * 访问的租户编号
+     */
+    private Long visitTenantId;
 
     public void setContext(String key, Object value) {
         if (context == null) {

yudao-framework/yudao-spring-boot-starter-security/src/main/java/cn/iocoder/yudao/framework/security/core/service/SecurityFrameworkServiceImpl.java

@@ -16,6 +16,7 @@ import java.util.List;
 
 import static cn.iocoder.yudao.framework.common.util.cache.CacheUtils.buildCache;
 import static cn.iocoder.yudao.framework.security.core.util.SecurityFrameworkUtils.getLoginUserId;
+import static cn.iocoder.yudao.framework.security.core.util.SecurityFrameworkUtils.skipPermissionCheck;
 
 /**
  * 默认的 {@link SecurityFrameworkService} 实现类
@@ -63,6 +64,12 @@ public class SecurityFrameworkServiceImpl implements SecurityFrameworkService {
     @Override
     @SneakyThrows
     public boolean hasAnyPermissions(String... permissions) {
+        // 特殊：跨租户访问
+        if (skipPermissionCheck()) {
+            return true;
+        }
+
+        // 权限校验
         Long userId = getLoginUserId();
         if (userId == null) {
             return false;
@@ -78,6 +85,12 @@ public class SecurityFrameworkServiceImpl implements SecurityFrameworkService {
     @Override
     @SneakyThrows
     public boolean hasAnyRoles(String... roles) {
+        // 特殊：跨租户访问
+        if (skipPermissionCheck()) {
+            return true;
+        }
+
+        // 权限校验
         Long userId = getLoginUserId();
         if (userId == null) {
             return false;
@@ -92,6 +105,12 @@ public class SecurityFrameworkServiceImpl implements SecurityFrameworkService {
 
     @Override
     public boolean hasAnyScopes(String... scope) {
+        // 特殊：跨租户访问
+        if (skipPermissionCheck()) {
+            return true;
+        }
+
+        // 权限校验
         LoginUser user = SecurityFrameworkUtils.getLoginUser();
         if (user == null) {
             return false;

yudao-framework/yudao-spring-boot-starter-security/src/main/java/cn/iocoder/yudao/framework/security/core/util/SecurityFrameworkUtils.java

@@ -1,6 +1,7 @@
 package cn.iocoder.yudao.framework.security.core.util;
 
 import cn.hutool.core.map.MapUtil;
+import cn.hutool.core.util.ObjUtil;
 import cn.hutool.core.util.StrUtil;
 import cn.iocoder.yudao.framework.security.core.LoginUser;
 import cn.iocoder.yudao.framework.web.core.util.WebFrameworkUtils;
@@ -139,4 +140,21 @@ public class SecurityFrameworkUtils {
         return authenticationToken;
     }
 
+    /**
+     * 是否条件跳过权限校验，包括数据权限、功能权限
+     *
+     * @return 是否跳过
+     */
+    public static boolean skipPermissionCheck() {
+        LoginUser loginUser = getLoginUser();
+        if (loginUser == null) {
+            return false;
+        }
+        if (loginUser.getVisitTenantId() == null) {
+            return false;
+        }
+        // 重点：跨租户访问时，无法进行权限校验
+        return ObjUtil.notEqual(loginUser.getVisitTenantId(), loginUser.getTenantId());
+    }
+
 }

yudao-framework/yudao-spring-boot-starter-web/src/main/java/cn/iocoder/yudao/framework/web/core/util/WebFrameworkUtils.java

@@ -28,6 +28,7 @@ public class WebFrameworkUtils {
     private static final String REQUEST_ATTRIBUTE_COMMON_RESULT = "common_result";
 
     public static final String HEADER_TENANT_ID = "tenant-id";
+    public static final String HEADER_VISIT_TENANT_ID = "visit-tenant-id";
 
     /**
      * 终端的 Header
@@ -54,6 +55,18 @@ public class WebFrameworkUtils {
         return NumberUtil.isNumber(tenantId) ? Long.valueOf(tenantId) : null;
     }
 
+    /**
+     * 获得访问的租户编号，从 header 中
+     * 考虑到其它 framework 组件也会使用到租户编号，所以不得不放在 WebFrameworkUtils 统一提供
+     *
+     * @param request 请求
+     * @return 租户编号
+     */
+    public static Long getVisitTenantId(HttpServletRequest request) {
+        String tenantId = request.getHeader(HEADER_VISIT_TENANT_ID);
+        return NumberUtil.isNumber(tenantId)? Long.valueOf(tenantId) : null;
+    }
+
     public static void setLoginUserId(ServletRequest request, Long userId) {
         request.setAttribute(REQUEST_ATTRIBUTE_LOGIN_USER_ID, userId);
     }

yudao-module-system/yudao-module-system-biz/src/main/java/cn/iocoder/yudao/module/system/controller/admin/user/UserController.http

@@ -3,3 +3,9 @@ GET {{baseUrl}}/system/user/page?pageNo=1&pageSize=10
 Authorization: Bearer {{token}}
 #Authorization: Bearer test100
 tenant-id: {{adminTenantId}}
+
+### 请求 /system/user/page 接口（测试访问别的租户）
+GET {{baseUrl}}/system/user/page?pageNo=1&pageSize=10
+Authorization: Bearer {{token}}
+tenant-id: {{adminTenantId}}
+visit-tenant-id: 122

yudao-module-system/yudao-module-system-biz/src/main/resources/application.yaml

@@ -165,6 +165,9 @@ yudao:
   tenant: # 多租户相关配置项
     enable: true
     ignore-urls:
+    ignore-visit-urls:
+      - /admin-api/system/user/profile/**
+      - /admin-api/system/auth/**
     ignore-tables:
     ignore-caches:
       - user_role_ids

yudao-server/src/main/resources/application.yaml

@@ -298,6 +298,9 @@ yudao:
     enable: true
     ignore-urls:
       - /jmreport/* # 积木报表，无法携带租户编号
+    ignore-visit-urls:
+      - /admin-api/system/user/profile/**
+      - /admin-api/system/auth/**
     ignore-tables:
     ignore-caches:
       - user_role_ids