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[#54] morph: Introduce ContractStorageReader

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* Implement MorphRuleChainStorageReader interface to make
  possible to read from Policy contract without wallets.

Signed-off-by: Airat Arifullin <aarifullin@yadro.com>
This commit is contained in:
aarifullin 2024-02-26 18:30:31 +03:00 committed by Evgenii Stratonikov
parent 9e66ce59c6
commit cf1f091e26
2 changed files with 48 additions and 4 deletions
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6
pkg/engine/chain_router.go
View file

@ -6,18 +6,18 @@ import (
)
type defaultChainRouter struct {
morph MorphRuleChainStorage
morph MorphRuleChainStorageReader
local LocalOverrideStorage
}
func NewDefaultChainRouter(morph MorphRuleChainStorage) ChainRouter {
func NewDefaultChainRouter(morph MorphRuleChainStorageReader) ChainRouter {
return &defaultChainRouter{
morph: morph,
}
}
func NewDefaultChainRouterWithLocalOverrides(morph MorphRuleChainStorage, local LocalOverrideStorage) ChainRouter {
func NewDefaultChainRouterWithLocalOverrides(morph MorphRuleChainStorageReader, local LocalOverrideStorage) ChainRouter {
return &defaultChainRouter{
morph: morph,
local: local,

46
pkg/morph/policy/policy_contract_storage.go
View file

@ -22,13 +22,20 @@ var (
ErrEngineTargetTypeUnsupported = errors.New("this target type is not supported yet")
)
// ContractStorage is the interface to manage chain rules within the policy contract.
// ContractStorage is the interface to manage chain rules within Policy contract.
type ContractStorage struct {
contractInterface *client.Contract
}
var _ engine.MorphRuleChainStorage = (*ContractStorage)(nil)
// ContractStorageReader is the interface to read data from Policy contract.
type ContractStorageReader struct {
contractReaderInterface *client.ContractReader
}
var _ engine.MorphRuleChainStorageReader = (*ContractStorageReader)(nil)
func NewContractStorage(actor client.Actor, contract util.Uint160) *ContractStorage {
return &ContractStorage{
contractInterface: client.New(actor, contract),
@ -112,6 +119,43 @@ func (s *ContractStorage) SetAdmin(addr util.Uint160) (util.Uint256, uint32, err
return s.contractInterface.SetAdmin(addr)
}
func NewContractStorageReader(inv client.Invoker, contract util.Uint160) *ContractStorageReader {
return &ContractStorageReader{
contractReaderInterface: client.NewReader(inv, contract),
}
}
func (s *ContractStorageReader) ListMorphRuleChains(name chain.Name, target engine.Target) ([]*chain.Chain, error) {
kind, err := policyKind(target.Type)
if err != nil {
return nil, err
}
items, err := s.contractReaderInterface.ListChainsByPrefix(big.NewInt(int64(kind)), target.Name, []byte(name))
if err != nil {
return nil, err
}
var chains []*chain.Chain
for _, item := range items {
serialized, err := bytesFromStackItem(item)
if err != nil {
return nil, err
}
c := new(chain.Chain)
if err := c.DecodeBytes(serialized); err != nil {
return nil, err
}
chains = append(chains, c)
}
return chains, nil
}
func (s *ContractStorageReader) GetAdmin() (util.Uint160, error) {
return s.contractReaderInterface.GetAdmin()
}
func bytesFromStackItem(param stackitem.Item) ([]byte, error) {
switch param.Type() {
case stackitem.BufferT, stackitem.ByteArrayT, stackitem.IntegerT: