cerc-io/lotus
16
0
Fork 0
Code Issues Pull Requests Packages Projects Releases 27 Wiki Activity

fix: eth: ensure that the event topics are non-nil

Browse Source 
Even when empty.

fixes #10910
This commit is contained in:
Steven Allen 2023-06-12 09:48:30 -07:00
parent 5b31b79d58
commit 739d61c698
2 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
node/impl/full/eth.go
View File

@ -1537,6 +1537,8 @@ func ethLogFromEvent(entries []types.EventEntry) (data []byte, topics []ethtypes
topicsFoundCount int topicsFoundCount int
dataFound bool dataFound bool
) )
// Topics must be non-nil, even if empty. So we might as well pre-allocate for 4 (the max).
topics = make([]ethtypes.EthHash, 0, 4)
for _, entry := range entries { for _, entry := range entries {
// Drop events with non-raw topics to avoid mistakes. // Drop events with non-raw topics to avoid mistakes.
if entry.Codec != cid.Raw { if entry.Codec != cid.Raw {

3
node/impl/full/eth_test.go
View File

@ -17,7 +17,8 @@ func TestEthLogFromEvent(t *testing.T) {
data, topics, ok := ethLogFromEvent(nil) data, topics, ok := ethLogFromEvent(nil)
require.True(t, ok) require.True(t, ok)
require.Nil(t, data) require.Nil(t, data)
require.Nil(t, topics) require.Empty(t, topics)
require.NotNil(t, topics)
// basic topic // basic topic
data, topics, ok = ethLogFromEvent([]types.EventEntry{{ data, topics, ok = ethLogFromEvent([]types.EventEntry{{