feat：新增共享文件功能

upload-file-backend/src/main/java/cn/czh/service/impl/AuthServiceImpl.java

@@ -0,0 +1,57 @@
+package cn.czh.service.impl;
+
+import cn.czh.entity.UserConfig;
+import cn.czh.mapper.UserConfigMapper;
+import cn.czh.service.IAuthService;
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.Resource;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
+@Service
+public class AuthServiceImpl implements IAuthService {
+
+    @Resource
+    private UserConfigMapper userConfigMapper;
+
+    @Override
+    public String getMainUserPassword() {
+        UserConfig user = userConfigMapper.selectOne(
+                new LambdaQueryWrapper<UserConfig>()
+                        .eq(UserConfig::getIsMainUser, 1)
+        );
+        if (user == null) {
+            return "";
+        }
+        return user.getPassword() == null || user.getPassword().trim().isEmpty() ? "" : user.getPassword();
+    }
+
+    @Override
+    public void setMainUserPassword(String password) {
+        UserConfig user = userConfigMapper.selectOne(
+                new LambdaQueryWrapper<UserConfig>()
+                        .eq(UserConfig::getIsMainUser, 1)
+        );
+
+        if (user == null) {
+            user = new UserConfig();
+            user.setUsername("admin");
+            user.setIsMainUser(1);
+            user.setCreateTime(LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
+
+        }
+        user.setPassword(password != null && password.trim().isEmpty() ? null : password);
+        if (user.getId() == null) {
+            userConfigMapper.insert(user);
+        } else {
+            userConfigMapper.updateById(user);
+        }
+    }
+
+    @Override
+    public boolean isMainUser(String remoteAddress) {
+        return "127.0.0.1".equals(remoteAddress) || "0:0:0:0:0:0:0:1".equals(remoteAddress);
+    }
+}