protected bool Storage_Get(ExecutionEngine engine)
{
CustomStorageContext context = engine.EvaluationStack.Pop().GetInterface <CustomStorageContext>();
byte[] key = engine.EvaluationStack.Pop().GetByteArray();
StorageItem item = new StorageItem
{
Value = (byte[])context.data[Encoding.UTF8.GetString(key)]
};
engine.EvaluationStack.Push(item?.Value ?? new byte[0]);
return(true);
}
protected bool Storage_Put(ExecutionEngine engine)
{
CustomStorageContext context = engine.EvaluationStack.Pop().GetInterface <CustomStorageContext>();
byte[] key = engine.EvaluationStack.Pop().GetByteArray();
if (key.Length > 1024)
{
return(false);
}
byte[] value = engine.EvaluationStack.Pop().GetByteArray();
context.data[Encoding.UTF8.GetString(key)] = value;
return(true);
}
public CustomInteropService()
{
Register("Neo.Storage.GetContext", Storage_GetContext);
Register("Neo.Storage.Get", Storage_Get);
Register("Neo.Storage.Put", Storage_Put);
Register("Neo.Runtime.CheckWitness", Runtime_CheckWitness);
Register("Neo.Transaction.GetInputs", Transaction_GetInputs);
Register("Neo.Transaction.GetOutputs", Transaction_GetOutputs);
Register("Neo.Blockchain.GetTransaction", Blockchain_GetTransaction);
Register("Neo.Input.GetHash", Input_GetHash);
Register("Neo.Input.GetIndex", Input_GetIndex);
Register("Neo.Output.GetScriptHash", Output_GetScriptHash);
Register("Neo.Runtime.Notify", Runtime_Notify);
this.storageContext = new CustomStorageContext();
this.transactions = new Hashtable();
}