forked from LBRYCommunity/lbry-sdk
34 lines
900 B
Python
34 lines
900 B
Python
import struct
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from torba.basetransaction import BaseTransaction, BaseInput, BaseOutput
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from torba.hash import hash160
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from .script import InputScript, OutputScript
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def claim_id_hash(txid, n):
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return hash160(txid + struct.pack('>I', n))
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class Input(BaseInput):
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script_class = InputScript
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class Output(BaseOutput):
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script_class = OutputScript
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@classmethod
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def pay_claim_name_pubkey_hash(cls, amount, claim_name, claim, pubkey_hash):
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script = cls.script_class.pay_claim_name_pubkey_hash(claim_name, claim, pubkey_hash)
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return cls(amount, script)
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class Transaction(BaseTransaction):
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input_class = Input
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output_class = Output
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def get_claim_id(self, output_index):
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output = self.outputs[output_index] # type: Output
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assert output.script.is_claim_name(), 'Not a name claim.'
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return claim_id_hash(self.hash, output_index)
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