def Storage_Put(self, engine):
context = None
try:
context = engine.EvaluationStack.Pop().GetInterface(
'neo.SmartContract.StorageContext.StorageContext')
except Exception as e:
self.__log.debug("Storage Context Not found on stack")
return False
if not self.CheckStorageContext(context):
return False
key = engine.EvaluationStack.Pop().GetByteArray()
if len(key) > 1024:
return False
value = engine.EvaluationStack.Pop().GetByteArray()
new_item = StorageItem(value=value)
storage_key = StorageKey(script_hash=context.ScriptHash, key=key)
item = self._storages.GetAndChange(storage_key.GetHashCodeBytes(),
new_instance=new_item)
item.Value = value
self.__log.debug("Put stored item %s %s " % (item, item.Value))
return True
def Storage_Delete(self, engine):
context = engine.EvaluationStack.Pop().GetInterface()
if not self.CheckStorageContext(context):
return False
key = engine.EvaluationStack.Pop().GetByteArray()
storage_key = StorageKey(script_hash=context.ScriptHash, key=key)
keystr = key
if len(key) == 20:
keystr = Crypto.ToAddress(UInt160(data=key))
dispatch_smart_contract_event(SmartContractEvent.STORAGE_DELETE,
keystr,
context.ScriptHash,
Blockchain.Default().Height,
engine.ScriptContainer.Hash,
test_mode=engine.testMode)
self._storages.Remove(storage_key.GetHashCodeBytes())
return True
def Storage_Delete(self, engine):
context = engine.EvaluationStack.Pop().GetInterface('neo.SmartContract.StorageContext.StorageContext')
if not self.CheckStorageContext(context):
return False
key = engine.EvaluationStack.Pop().GetByteArray()
storage_key = StorageKey(script_hash=context.ScriptHash, key=key)
self._storages.Delete(storage_key.GetHashCodeBytes())
return True
def Storage_Get(self, engine):
context = None
try:
item = engine.EvaluationStack.Pop()
context = item.GetInterface()
except Exception as e:
logger.error("could not get storage context %s " % e)
return False
if not self.CheckStorageContext(context):
return False
key = engine.EvaluationStack.Pop().GetByteArray()
storage_key = StorageKey(script_hash=context.ScriptHash, key=key)
item = self._storages.TryGet(storage_key.GetHashCodeBytes())
keystr = key
valStr = bytearray(0)
if item is not None:
valStr = bytearray(item.Value)
if len(key) == 20:
keystr = Crypto.ToAddress(UInt160(data=key))
try:
valStr = int.from_bytes(valStr, 'little')
except Exception as e:
pass
if item is not None:
engine.EvaluationStack.PushT(bytearray(item.Value))
else:
engine.EvaluationStack.PushT(bytearray(0))
self.events_to_dispatch.append(
SmartContractEvent(SmartContractEvent.STORAGE_GET,
['%s -> %s' % (keystr, valStr)],
context.ScriptHash,
Blockchain.Default().Height,
engine.ScriptContainer.Hash
if engine.ScriptContainer else None,
test_mode=engine.testMode))
return True
def Storage_Get(self, engine):
context = None
try:
item = engine.EvaluationStack.Pop()
context = item.GetInterface(
'neo.SmartContract.StorageContext.StorageContext')
shash = context.ScriptHash
except Exception as e:
print("could not get storage context %s " % e)
return False
if not self.CheckStorageContext(context):
return False
key = engine.EvaluationStack.Pop().GetByteArray()
storage_key = StorageKey(script_hash=context.ScriptHash, key=key)
item = self._storages.TryGet(storage_key.GetHashCodeBytes())
keystr = key
valStr = bytearray(0)
if item is not None:
valStr = bytearray(item.Value)
if len(key) == 20:
keystr = Crypto.ToAddress(UInt160(data=key))
try:
valStr = int.from_bytes(valStr, 'little')
except Exception as e:
print("couldnt convert %s to number: %s " % (valStr, e))
if item is not None:
print("[Neo.Storage.Get] [Script:%s] [%s] -> %s " %
(context.ScriptHash, keystr, valStr))
engine.EvaluationStack.PushT(bytearray(item.Value))
else:
print("[Neo.Storage.Get] [Script:%s] [%s] -> 0 " %
(context.ScriptHash, keystr))
engine.EvaluationStack.PushT(bytearray(0))
return True
def Storage_Put(self, engine):
context = None
try:
context = engine.EvaluationStack.Pop().GetInterface()
except Exception as e:
logger.error("Storage Context Not found on stack")
return False
if not self.CheckStorageContext(context):
return False
key = engine.EvaluationStack.Pop().GetByteArray()
if len(key) > 1024:
return False
value = engine.EvaluationStack.Pop().GetByteArray()
new_item = StorageItem(value=value)
storage_key = StorageKey(script_hash=context.ScriptHash, key=key)
item = self._storages.GetOrAdd(storage_key.GetHashCodeBytes(),
new_item)
keystr = key
valStr = bytearray(item.Value)
if len(key) == 20:
keystr = Crypto.ToAddress(UInt160(data=key))
try:
valStr = int.from_bytes(valStr, 'little')
except Exception as e:
pass
self.events_to_dispatch.append(
SmartContractEvent(SmartContractEvent.STORAGE_PUT,
['%s -> %s' % (keystr, valStr)],
context.ScriptHash,
Blockchain.Default().Height,
engine.ScriptContainer.Hash
if engine.ScriptContainer else None,
test_mode=engine.testMode))
return True
def Storage_Put(self, engine):
context = None
try:
context = engine.EvaluationStack.Pop().GetInterface(
'neo.SmartContract.StorageContext.StorageContext')
except Exception as e:
self.__log.debug("Storage Context Not found on stack")
return False
if not self.CheckStorageContext(context):
return False
key = engine.EvaluationStack.Pop().GetByteArray()
if len(key) > 1024:
return False
value = engine.EvaluationStack.Pop().GetByteArray()
new_item = StorageItem(value=value)
storage_key = StorageKey(script_hash=context.ScriptHash, key=key)
item = self._storages.GetOrAdd(storage_key.GetHashCodeBytes(),
new_item)
keystr = key
valStr = bytearray(item.Value)
if len(key) == 20:
keystr = Crypto.ToAddress(UInt160(data=key))
try:
valStr = int.from_bytes(valStr, 'little')
except Exception as e:
pass
print("[Neo.Storage.Put] [Script: %s] [%s] -> %s" %
(context.ScriptHash, keystr, valStr))
return True
def Storage_Get(self, engine):
context = None
try:
context = engine.EvaluationStack.Pop().GetInterface(
'neo.SmartContract.StorageContext.StorageContext')
except Exception as e:
self.__log.debug("Storage Context not found")
return False
if not self.CheckStorageContext(context):
return False
key = engine.EvaluationStack.Pop().GetByteArray()
storage_key = StorageKey(script_hash=context.ScriptHash, key=key)
item = self._storages.TryGet(storage_key.GetHashCodeBytes())
if item is not None:
engine.EvaluationStack.PushT(item.Value)
else:
engine.EvaluationStack.PushT(bytearray(0))
return True
def Storage_Delete(self, engine):
context = engine.EvaluationStack.Pop().GetInterface(
'neo.SmartContract.StorageContext.StorageContext')
if not self.CheckStorageContext(context):
return False
key = engine.EvaluationStack.Pop().GetByteArray()
storage_key = StorageKey(script_hash=context.ScriptHash, key=key)
keystr = key
if len(key) == 20:
keystr = Crypto.ToAddress(UInt160(data=key))
print("[Neo.Storage.Delete] [Script %s] Delete %s " %
(context.ScriptHash, keystr))
self._storages.Remove(storage_key.GetHashCodeBytes())
return True
