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133 lines
4.0 KiB
133 lines
4.0 KiB
from trezor import utils, wire
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from trezor.crypto import base58
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from trezor.crypto.base58 import blake256d_32
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from trezor.enums import InputScriptType
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from apps.common.writers import write_bytes_fixed, write_uint64_le
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from . import scripts
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from .multisig import multisig_get_pubkeys, multisig_pubkey_index
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from .scripts import ( # noqa: F401
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output_script_paytoopreturn,
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write_output_script_multisig,
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write_output_script_p2pkh,
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)
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from .writers import op_push_length, write_bitcoin_varint, write_op_push
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if False:
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from trezor.messages import MultisigRedeemScriptType
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from apps.common.coininfo import CoinInfo
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from .writers import Writer
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def write_input_script_prefixed(
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w: Writer,
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script_type: InputScriptType,
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multisig: MultisigRedeemScriptType | None,
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coin: CoinInfo,
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hash_type: int,
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pubkey: bytes,
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signature: bytes,
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) -> None:
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if script_type == InputScriptType.SPENDADDRESS:
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# p2pkh or p2sh
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scripts.write_input_script_p2pkh_or_p2sh_prefixed(
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w, pubkey, signature, hash_type
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)
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elif script_type == InputScriptType.SPENDMULTISIG:
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# p2sh multisig
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assert multisig is not None # checked in sanitize_tx_input
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signature_index = multisig_pubkey_index(multisig, pubkey)
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write_input_script_multisig_prefixed(
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w, multisig, signature, signature_index, hash_type, coin
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)
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else:
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raise wire.ProcessError("Invalid script type")
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def write_input_script_multisig_prefixed(
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w: Writer,
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multisig: MultisigRedeemScriptType,
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signature: bytes,
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signature_index: int,
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hash_type: int,
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coin: CoinInfo,
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) -> None:
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signatures = multisig.signatures # other signatures
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if len(signatures[signature_index]) > 0:
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raise wire.DataError("Invalid multisig parameters")
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signatures[signature_index] = signature # our signature
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# length of the redeem script
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pubkeys = multisig_get_pubkeys(multisig)
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redeem_script_length = scripts.output_script_multisig_length(pubkeys, multisig.m)
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# length of the result
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total_length = 0
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for s in signatures:
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if s:
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total_length += 1 + len(s) + 1 # length, signature, hash_type
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total_length += op_push_length(redeem_script_length) + redeem_script_length
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write_bitcoin_varint(w, total_length)
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for s in signatures:
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if s:
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scripts.append_signature(w, s, hash_type)
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# redeem script
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write_op_push(w, redeem_script_length)
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scripts.write_output_script_multisig(w, pubkeys, multisig.m)
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# A ticket purchase submission for an address hash.
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def output_script_sstxsubmissionpkh(addr: str) -> bytearray:
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try:
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raw_address = base58.decode_check(addr, blake256d_32)
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except ValueError:
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raise wire.DataError("Invalid address")
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w = utils.empty_bytearray(26)
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w.append(0xBA) # OP_SSTX
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scripts.write_output_script_p2pkh(w, raw_address[2:])
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return w
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# Ticket purchase change script.
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def output_script_sstxchange(addr: str) -> bytearray:
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try:
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raw_address = base58.decode_check(addr, blake256d_32)
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except ValueError:
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raise wire.DataError("Invalid address")
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w = utils.empty_bytearray(26)
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w.append(0xBD) # OP_SSTXCHANGE
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scripts.write_output_script_p2pkh(w, raw_address[2:])
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return w
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# Spend from a stake revocation.
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def write_output_script_ssrtx_prefixed(w: Writer, pkh: bytes) -> None:
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utils.ensure(len(pkh) == 20)
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write_bitcoin_varint(w, 26)
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w.append(0xBC) # OP_SSRTX
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scripts.write_output_script_p2pkh(w, pkh)
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# Spend from a stake generation.
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def write_output_script_ssgen_prefixed(w: Writer, pkh: bytes) -> None:
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utils.ensure(len(pkh) == 20)
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write_bitcoin_varint(w, 26)
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w.append(0xBB) # OP_SSGEN
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scripts.write_output_script_p2pkh(w, pkh)
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# Stake commitment OPRETURN.
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def sstxcommitment_pkh(pkh: bytes, amount: int) -> bytes:
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w = utils.empty_bytearray(30)
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write_bytes_fixed(w, pkh, 20)
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write_uint64_le(w, amount)
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write_bytes_fixed(w, b"\x00\x58", 2) # standard fee limits
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return w
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