EUForest
06a2425474
- Add subscribe traffic_limit schema and migration\n- Support traffic_limit in admin create/update and list/details\n- Apply traffic_limit when building server user list speed limits\n- Add public user traffic stats API
130 lines
3.5 KiB
Go
130 lines
3.5 KiB
Go
package group
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import (
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"bytes"
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"context"
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"encoding/csv"
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"fmt"
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"github.com/perfect-panel/server/internal/model/group"
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"github.com/perfect-panel/server/internal/model/user"
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"github.com/perfect-panel/server/internal/svc"
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"github.com/perfect-panel/server/internal/types"
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"github.com/perfect-panel/server/pkg/logger"
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)
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type ExportGroupResultLogic struct {
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logger.Logger
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ctx context.Context
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svcCtx *svc.ServiceContext
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}
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func NewExportGroupResultLogic(ctx context.Context, svcCtx *svc.ServiceContext) *ExportGroupResultLogic {
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return &ExportGroupResultLogic{
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Logger: logger.WithContext(ctx),
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ctx: ctx,
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svcCtx: svcCtx,
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}
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}
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// ExportGroupResult 导出分组结果为 CSV
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// 返回：CSV 数据（字节切片）、文件名、错误
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func (l *ExportGroupResultLogic) ExportGroupResult(req *types.ExportGroupResultRequest) ([]byte, string, error) {
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var records [][]string
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// CSV 表头
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records = append(records, []string{"用户ID", "节点组ID", "节点组名称"})
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if req.HistoryId != nil {
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// 导出指定历史的详细结果
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// 1. 查询分组历史详情
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var details []group.GroupHistoryDetail
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if err := l.svcCtx.DB.Where("history_id = ?", *req.HistoryId).Find(&details).Error; err != nil {
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logger.Errorf("failed to get group history details: %v", err)
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return nil, "", err
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}
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// 2. 为每个组生成记录
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for _, detail := range details {
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// 从 UserData JSON 解析用户信息
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type UserInfo struct {
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Id int64 `json:"id"`
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Email string `json:"email"`
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}
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var users []UserInfo
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if err := l.svcCtx.DB.Raw("SELECT * FROM JSON_ARRAY(?)", detail.UserData).Scan(&users).Error; err != nil {
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// 如果解析失败，尝试用标准 JSON 解析
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logger.Errorf("failed to parse user data: %v", err)
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continue
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}
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// 查询节点组名称
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var nodeGroup group.NodeGroup
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l.svcCtx.DB.Where("id = ?", detail.NodeGroupId).First(&nodeGroup)
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// 为每个用户生成记录
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for _, user := range users {
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records = append(records, []string{
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fmt.Sprintf("%d", user.Id),
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fmt.Sprintf("%d", nodeGroup.Id),
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nodeGroup.Name,
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})
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}
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}
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} else {
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// 导出当前所有用户的分组情况
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type UserNodeGroupInfo struct {
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Id int64 `json:"id"`
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NodeGroupId int64 `json:"node_group_id"`
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}
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var userSubscribes []UserNodeGroupInfo
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if err := l.svcCtx.DB.Model(&user.Subscribe{}).
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Select("DISTINCT user_id as id, node_group_id").
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Where("node_group_id > ?", 0).
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Find(&userSubscribes).Error; err != nil {
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logger.Errorf("failed to get users: %v", err)
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return nil, "", err
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}
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// 为每个用户生成记录
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for _, us := range userSubscribes {
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// 查询节点组信息
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var nodeGroup group.NodeGroup
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if err := l.svcCtx.DB.Where("id = ?", us.NodeGroupId).First(&nodeGroup).Error; err != nil {
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logger.Errorf("failed to find node group: %v", err)
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// 跳过该用户
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continue
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}
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records = append(records, []string{
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fmt.Sprintf("%d", us.Id),
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fmt.Sprintf("%d", nodeGroup.Id),
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nodeGroup.Name,
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})
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}
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}
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// 生成 CSV 数据
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var buf bytes.Buffer
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writer := csv.NewWriter(&buf)
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writer.WriteAll(records)
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writer.Flush()
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if err := writer.Error(); err != nil {
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logger.Errorf("failed to write csv: %v", err)
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return nil, "", err
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}
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// 添加 UTF-8 BOM
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bom := []byte{0xEF, 0xBB, 0xBF}
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csvData := buf.Bytes()
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result := make([]byte, 0, len(bom)+len(csvData))
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result = append(result, bom...)
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result = append(result, csvData...)
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// 生成文件名
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filename := fmt.Sprintf("group_result_%d.csv", req.HistoryId)
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return result, filename, nil
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}
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