from torba.basescript import BaseInputScript, BaseOutputScript, Template from torba.basescript import PUSH_SINGLE, OP_DROP, OP_2DROP class InputScript(BaseInputScript): pass class OutputScript(BaseOutputScript): # lbry custom opcodes OP_CLAIM_NAME = 0xb5 OP_SUPPORT_CLAIM = 0xb6 OP_UPDATE_CLAIM = 0xb7 CLAIM_NAME_OPCODES = ( OP_CLAIM_NAME, PUSH_SINGLE('claim_name'), PUSH_SINGLE('claim'), OP_2DROP, OP_DROP ) CLAIM_NAME_PUBKEY = Template('claim_name+pay_pubkey_hash', ( CLAIM_NAME_OPCODES + BaseOutputScript.PAY_PUBKEY_HASH.opcodes )) CLAIM_NAME_SCRIPT = Template('claim_name+pay_script_hash', ( CLAIM_NAME_OPCODES + BaseOutputScript.PAY_SCRIPT_HASH.opcodes )) SUPPORT_CLAIM_OPCODES = ( OP_SUPPORT_CLAIM, PUSH_SINGLE('claim_name'), PUSH_SINGLE('claim_id'), OP_2DROP, OP_DROP ) SUPPORT_CLAIM_PUBKEY = Template('support_claim+pay_pubkey_hash', ( SUPPORT_CLAIM_OPCODES + BaseOutputScript.PAY_PUBKEY_HASH.opcodes )) SUPPORT_CLAIM_SCRIPT = Template('support_claim+pay_script_hash', ( SUPPORT_CLAIM_OPCODES + BaseOutputScript.PAY_SCRIPT_HASH.opcodes )) UPDATE_CLAIM_OPCODES = ( OP_UPDATE_CLAIM, PUSH_SINGLE('claim_name'), PUSH_SINGLE('claim_id'), PUSH_SINGLE('claim'), OP_2DROP, OP_2DROP ) UPDATE_CLAIM_PUBKEY = Template('update_claim+pay_pubkey_hash', ( UPDATE_CLAIM_OPCODES + BaseOutputScript.PAY_PUBKEY_HASH.opcodes )) UPDATE_CLAIM_SCRIPT = Template('update_claim+pay_script_hash', ( UPDATE_CLAIM_OPCODES + BaseOutputScript.PAY_SCRIPT_HASH.opcodes )) templates = BaseOutputScript.templates + [ CLAIM_NAME_PUBKEY, CLAIM_NAME_SCRIPT, SUPPORT_CLAIM_PUBKEY, SUPPORT_CLAIM_SCRIPT, UPDATE_CLAIM_PUBKEY, UPDATE_CLAIM_SCRIPT ] @classmethod def pay_claim_name_pubkey_hash(cls, claim_name, claim, pubkey_hash): return cls(template=cls.CLAIM_NAME_PUBKEY, values={ 'claim_name': claim_name, 'claim': claim, 'pubkey_hash': pubkey_hash }) @property def is_claim_name(self): return self.template.name.startswith('claim_name+') @property def is_support_claim(self): return self.template.name.startswith('support_claim+') @property def is_update_claim(self): return self.template.name.startswith('update_claim+') @property def is_claim_involved(self): return self.is_claim_name or self.is_support_claim or self.is_update_claim