feat/security

Reviewed-on: #2

lib/boxstore/cleanup.go

@@ -0,0 +1,60 @@
+package boxstore
+
+import (
+	"fmt"
+	"os"
+)
+
+type CleanupExpiredResult struct {
+	Scanned int
+	Deleted int
+	Skipped int
+	DeletedIDs []string
+	Warnings []string
+}
+
+func CleanupExpiredBoxes() (CleanupExpiredResult, error) {
+	entries, err := os.ReadDir(uploadRoot)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return CleanupExpiredResult{}, nil
+		}
+		return CleanupExpiredResult{}, err
+	}
+
+	result := CleanupExpiredResult{
+		DeletedIDs: make([]string, 0),
+		Warnings:   make([]string, 0),
+	}
+	for _, entry := range entries {
+		if !entry.IsDir() {
+			continue
+		}
+		boxID := entry.Name()
+		if !ValidBoxID(boxID) {
+			continue
+		}
+		result.Scanned++
+
+		manifest, err := ReadManifest(boxID)
+		if err != nil {
+			result.Skipped++
+			if !os.IsNotExist(err) {
+				result.Warnings = append(result.Warnings, fmt.Sprintf("%s: %v", boxID, err))
+			}
+			continue
+		}
+		if !IsExpired(manifest) {
+			continue
+		}
+		if err := DeleteBox(boxID); err != nil {
+			result.Skipped++
+			result.Warnings = append(result.Warnings, fmt.Sprintf("%s: %v", boxID, err))
+			continue
+		}
+		result.Deleted++
+		result.DeletedIDs = append(result.DeletedIDs, boxID)
+	}
+
+	return result, nil
+}