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eth/filters: enforce topic-limit early on filter criterias

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Martin Holst Swende 2024-04-15 10:43:03 +02:00
parent 3705acd1a9
commit 13f209ff47
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1 changed files with 6 additions and 0 deletions
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6
eth/filters/api.go
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@ -539,6 +539,9 @@ func (args *FilterCriteria) UnmarshalJSON(data []byte) error {
return errors.New("invalid addresses in query")
}
}
if len(raw.Topics) > maxTopics {
return errExceedMaxTopics
}
// topics is an array consisting of strings and/or arrays of strings.
// JSON null values are converted to common.Hash{} and ignored by the filter manager.
@ -559,6 +562,9 @@ func (args *FilterCriteria) UnmarshalJSON(data []byte) error {
case []interface{}:
// or case e.g. [null, "topic0", "topic1"]
if len(topic) > maxTopics {
return errExceedMaxTopics
}
for _, rawTopic := range topic {
if rawTopic == nil {
// null component, match all