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oracle: add length check o.MainCfg.NeoFS.Nodes

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Prevent the risk of a division by zero error when accessing the
`o.MainCfg.NeoFS.Nodes[index]` array.

Close #3419

Signed-off-by: Ekaterina Pavlova <ekt@morphbits.io>
This commit is contained in:
Ekaterina Pavlova 2024-05-21 17:45:34 +03:00
parent 5c408f7fe4
commit 41109f442a
1 changed files with 5 additions and 0 deletions
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5
pkg/services/oracle/request.go
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@ -157,6 +157,11 @@ func (o *Oracle) processRequest(priv *keys.PrivateKey, req request) error {
resp.Code = transaction.Error
}
case neofs.URIScheme:
if len(o.MainCfg.NeoFS.Nodes) == 0 {
o.Log.Warn("no NeoFS nodes configured", zap.String("url", req.Req.URL))
resp.Code = transaction.Error
break
}
ctx, cancel := context.WithTimeout(context.Background(), o.MainCfg.NeoFS.Timeout)
defer cancel()
index := (int(req.ID) + incTx.attempts) % len(o.MainCfg.NeoFS.Nodes)