05/29 Update shared items displayed on Grantee items

app/routes/vault.py

@@ -142,6 +142,22 @@ def update_item(item_id):
     from datetime import datetime, timezone
     item.updated_at = datetime.now(timezone.utc).replace(tzinfo=None)
 
+    # Re-encrypt accepted shared copies if the owner provided updated ciphertext.
+    # Each entry: { share_id, enc_data, iv, enc_name?, iv_name? }
+    from app.models.shared_item import SharedItem
+    for upd in (data.get('shared_updates') or []):
+        share = SharedItem.query.filter_by(
+            id=upd.get('share_id'),
+            owner_id=g.current_user_id,
+            accepted=True,
+        ).first()
+        if share and upd.get('enc_data') and upd.get('iv'):
+            share.enc_data = upd['enc_data']
+            share.iv = upd['iv']
+            if upd.get('enc_name') is not None:
+                share.enc_name = upd['enc_name']
+                share.iv_name = upd.get('iv_name')
+
     try:
         db.session.flush()
         AuditLog.log(