Files

89 lines
1.9 KiB
Go

package useCases
import (
"RenewCMS/internal/domain/audit"
"encoding/csv"
"io"
"strings"
"time"
)
const exportBatchSize = 500
const formulaGuard = "'"
const formulaStarts = "=+-@"
var exportHeader = []string{"when", "actor", "action", "target", "outcome", "source", "ip"}
type ExportActivityUseCase struct {
events audit.Repository
now func() time.Time
}
type ActivityExport struct {
events audit.Repository
filter audit.Filter
}
func NewExportActivityUseCase(events audit.Repository, now func() time.Time) *ExportActivityUseCase {
return &ExportActivityUseCase{events, now}
}
func (e *ExportActivityUseCase) Prepare(query ActivityQuery) (*ActivityExport, error) {
filter, err := buildActivityFilter(query, e.now())
if err != nil {
return nil, err
}
return &ActivityExport{events: e.events, filter: filter}, nil
}
func (a *ActivityExport) WriteCSV(w io.Writer) error {
writer := csv.NewWriter(w)
if err := writer.Write(exportHeader); err != nil {
return err
}
for page := 1; ; page++ {
filter := a.filter
filter.Page, filter.Size = page, exportBatchSize
found, err := a.events.List(filter)
if err != nil {
return err
}
for _, event := range found.Items {
if err := writer.Write(exportRow(event)); err != nil {
return err
}
}
writer.Flush()
if err := writer.Error(); err != nil {
return err
}
if len(found.Items) < exportBatchSize || page*exportBatchSize >= found.Total {
return nil
}
}
}
func exportRow(event audit.Event) []string {
ip := ""
if event.IP != nil {
ip = *event.IP
}
return []string{
event.CreatedAt.UTC().Format(time.RFC3339),
guardCell(event.Actor.Name),
guardCell(event.Action),
guardCell(event.Target.Name),
string(event.Outcome),
string(event.Source),
guardCell(ip),
}
}
func guardCell(value string) string {
if value != "" && strings.ContainsRune(formulaStarts, rune(value[0])) {
return formulaGuard + value
}
return value
}