[core] System backups (uploads, system.db, analytics.db) (#42)

1 files changed, 26 insertions, 0 deletions

diff --git a/system/api/analytics/backup.go b/system/api/analytics/backup.go
new file mode 100644
index 0000000..07b1a46
--- /dev/null
+++ b/system/api/analytics/backup.go
@@ -0,0 +1,26 @@
+package analytics
+
+import (
+	"fmt"
+	"net/http"
+	"time"
+
+	"github.com/boltdb/bolt"
+)
+
+// Backup writes a snapshot of the analytics.db database to an HTTP response
+func Backup(res http.ResponseWriter) error {
+	err := store.View(func(tx *bolt.Tx) error {
+		ts := time.Now().Unix()
+		disposition := `attachment; filename="analytics-%d.db.bak"`
+
+		res.Header().Set("Content-Type", "application/octet-stream")
+		res.Header().Set("Content-Disposition", fmt.Sprintf(disposition, ts))
+		res.Header().Set("Content-Length", fmt.Sprintf("%d", int(tx.Size())))
+
+		_, err := tx.WriteTo(res)
+		return err
+	})
+
+	return err
+}