Esempio n. 1
0
        public ScriptInspector(byte[] script, Func <UInt160, bool> filter)
        {
            var instructions = NeoTools.Disassemble(script);

            for (int i = 1; i < instructions.Count; i++)
            {
                var op = instructions[i];

                // opcode data must contain the script hash to the Bluzelle contract, otherwise ignore it
                if (op.opcode == OpCode.APPCALL && op.data != null && op.data.Length == 20)
                {
                    var scriptHash = new UInt160(op.data);

                    if (filter != null && !filter(scriptHash))
                    {
                        continue;
                    }

                    var call = new ScriptCall();
                    call.contractHash = scriptHash;
                    call.operation    = Encoding.ASCII.GetString(instructions[i - 1].data);


                    int index = i - 3;
                    call.arguments = PackArguments(instructions, ref index);

                    _calls.Add(call);
                }
                else
                if (op.opcode == OpCode.SYSCALL && Encoding.ASCII.GetString(op.data) == "Neo.Contract.Create")
                {
                    var deploy = new ScriptDeployment();

                    deploy.script      = instructions[i - 1].data;
                    deploy.properties  = (ContractProperties)(1 + ((byte)instructions[i - 4].opcode - OpCode.PUSH1));
                    deploy.name        = Encoding.ASCII.GetString(instructions[i - 5].data);
                    deploy.version     = Encoding.ASCII.GetString(instructions[i - 6].data);
                    deploy.author      = Encoding.ASCII.GetString(instructions[i - 7].data);
                    deploy.email       = Encoding.ASCII.GetString(instructions[i - 8].data);
                    deploy.description = Encoding.ASCII.GetString(instructions[i - 9].data);

                    _deploys.Add(deploy);
                }
            }
        }
Esempio n. 2
0
        public ScriptInspector(byte[] script, Func <UInt160, bool> filter)
        {
            var instructions = NeoTools.Disassemble(script);

            for (int i = 1; i < instructions.Count; i++)
            {
                var op = instructions[i];

                // opcode data must contain the script hash to the Bluzelle contract, otherwise ignore it
                if (op.opcode == OpCode.APPCALL && op.data != null && op.data.Length == 20)
                {
                    var scriptHash = new UInt160(op.data);

                    if (filter != null && !filter(scriptHash))
                    {
                        continue;
                    }

                    var call = new ScriptCall();
                    call.contractHash = scriptHash;
                    call.operation    = Encoding.ASCII.GetString(instructions[i - 1].data);


                    int index    = i - 3;
                    var argCount = 1 + ((byte)instructions[index].opcode - (byte)OpCode.PUSH1);

                    while (argCount > 0)
                    {
                        index--;
                        if (instructions[index].opcode >= OpCode.PUSHBYTES1 && instructions[index].opcode <= OpCode.PUSHBYTES75)
                        {
                            call.arguments.Add(instructions[index].data);
                        }
                        else
                        if (instructions[index].opcode >= OpCode.PUSH1 && instructions[index].opcode <= OpCode.PUSH16)
                        {
                            var n = new BigInteger(1 + (instructions[index].opcode - OpCode.PUSH1));
                            call.arguments.Add(n);
                        }
                        else
                        if (instructions[index].opcode == OpCode.PUSH0)
                        {
                            call.arguments.Add(new BigInteger(0));
                        }
                        else
                        if (instructions[index].opcode == OpCode.PUSHM1)
                        {
                            call.arguments.Add(new BigInteger(-1));
                        }
                        else
                        {
                            throw new Exception("Invalid arg type");
                        }

                        argCount--;
                    }

                    _calls.Add(call);
                }
                else
                if (op.opcode == OpCode.SYSCALL && Encoding.ASCII.GetString(op.data) == "Neo.Contract.Create")
                {
                    var deploy = new ScriptDeployment();

                    deploy.script      = instructions[i - 1].data;
                    deploy.properties  = (ContractProperties)(1 + ((byte)instructions[i - 4].opcode - OpCode.PUSH1));
                    deploy.name        = Encoding.ASCII.GetString(instructions[i - 5].data);
                    deploy.version     = Encoding.ASCII.GetString(instructions[i - 6].data);
                    deploy.author      = Encoding.ASCII.GetString(instructions[i - 7].data);
                    deploy.email       = Encoding.ASCII.GetString(instructions[i - 8].data);
                    deploy.description = Encoding.ASCII.GetString(instructions[i - 9].data);

                    _deploys.Add(deploy);
                }
            }
        }