TrueCloudLab/neo-go
8
0
Fork 0
mirror of https://github.com/nspcc-dev/neo-go.git synced 2024-11-27 03:58:06 +00:00
Code Issues Projects Releases Packages Wiki Activity

core: add appropriate hashes to check for State TX

Browse source 
These checks are important for proper transaction verification.
This commit is contained in:
Roman Khimov 2020-03-16 19:52:28 +03:00
parent 2e4460bbb1
commit 6ede65610d
1 changed files with 25 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

25
pkg/core/blockchain.go
View file

@ -1885,6 +1885,31 @@ func (bc *Blockchain) GetScriptHashesForVerifying(t *transaction.Transaction) ([
case transaction.EnrollmentType:
etx := t.Data.(*transaction.EnrollmentTX)
hashes[etx.PublicKey.GetScriptHash()] = true
case transaction.StateType:
stx := t.Data.(*transaction.StateTX)
for _, desc := range stx.Descriptors {
switch desc.Type {
case transaction.Account:
if desc.Field != "Votes" {
return nil, errors.New("bad account state descriptor")
}
hash, err := util.Uint160DecodeBytesBE(desc.Key)
if err != nil {
return nil, err
}
hashes[hash] = true
case transaction.Validator:
if desc.Field != "Registered" {
return nil, errors.New("bad validator state descriptor")
}
key := &keys.PublicKey{}
err := key.DecodeBytes(desc.Key)
if err != nil {
return nil, err
}
hashes[key.GetScriptHash()] = true
}
}
}
// convert hashes to []util.Uint160
hashesResult := make([]util.Uint160, 0, len(hashes))