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core/sign_tx: Add write_tx_output() to signer class and override it in Decred.

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This commit is contained in:
Andrew Kozlik 2020-05-05 09:58:09 +02:00 committed by Andrew Kozlik
parent bdd1d25979
commit dccf415e0b
4 changed files with 19 additions and 8 deletions
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13
core/src/apps/wallet/sign_tx/bitcoin.py
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@ -226,7 +226,7 @@ class Bitcoin:
elif not await helpers.confirm_output(txo, self.coin):
raise SigningError(FailureType.ActionCancelled, "Output cancelled")
writers.write_tx_output(self.h_confirmed, txo_bin)
self.write_tx_output(self.h_confirmed, txo_bin)
self.hash143_add_output(txo_bin)
self.total_out += txo_bin.amount
@ -345,8 +345,8 @@ class Bitcoin:
txo = await helpers.request_tx_output(self.tx_req, i, self.coin)
txo_bin.amount = txo.amount
txo_bin.script_pubkey = self.output_derive_script(txo)
writers.write_tx_output(h_check, txo_bin)
writers.write_tx_output(h_sign, txo_bin)
self.write_tx_output(h_check, txo_bin)
self.write_tx_output(h_sign, txo_bin)
writers.write_uint32(h_sign, self.tx.lock_time)
writers.write_uint32(h_sign, self.get_hash_type())
@ -376,7 +376,7 @@ class Bitcoin:
txo_bin = TxOutputBinType()
txo_bin.amount = txo.amount
txo_bin.script_pubkey = self.output_derive_script(txo)
writers.write_tx_output(self.serialized_tx, txo_bin)
self.write_tx_output(self.serialized_tx, txo_bin)
async def get_prevtx_output_value(self, prev_hash: bytes, prev_index: int) -> int:
amount_out = 0 # output amount
@ -407,7 +407,7 @@ class Bitcoin:
txo_bin = await helpers.request_tx_output(
self.tx_req, i, self.coin, prev_hash
)
writers.write_tx_output(txh, txo_bin)
self.write_tx_output(txh, txo_bin)
if i == prev_index:
amount_out = txo_bin.amount
self.check_prevtx_output(txo_bin)
@ -437,6 +437,9 @@ class Bitcoin:
def write_tx_input(self, w: writers.Writer, txi: TxInputType) -> None:
writers.write_tx_input(w, txi)
def write_tx_output(self, w: writers.Writer, txo_bin: TxOutputBinType) -> None:
writers.write_tx_output(w, txo_bin)
def write_tx_header(
self, w: writers.Writer, tx: Union[SignTx, TransactionType], has_segwit: bool
) -> None:

2
core/src/apps/wallet/sign_tx/bitcoinlike.py
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@ -44,7 +44,7 @@ class Bitcoinlike(Bitcoin):
# serialize input with correct signature
gc.collect()
txi.script_sig = self.input_derive_script(txi, public_key, signature)
writers.write_tx_input(self.serialized_tx, txi)
self.write_tx_input(self.serialized_tx, txi)
self.set_serialized_signature(i_sign, signature)
async def sign_nonsegwit_input(self, i_sign: int) -> None:

7
core/src/apps/wallet/sign_tx/decred.py
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@ -68,7 +68,7 @@ class Decred(Bitcoin):
)
txo_bin.decred_script_version = txo.decred_script_version
await super().confirm_output(i, txo, txo_bin)
writers.write_tx_output(self.serialized_tx, txo_bin)
self.write_tx_output(self.serialized_tx, txo_bin)
async def step4_serialize_inputs(self) -> None:
writers.write_varint(self.serialized_tx, self.tx.inputs_count)
@ -154,11 +154,14 @@ class Decred(Bitcoin):
writers.write_tx_input_decred(self.h_prefix, txi)
def hash143_add_output(self, txo_bin: TxOutputBinType) -> None:
writers.write_tx_output(self.h_prefix, txo_bin)
writers.write_tx_output_decred(self.h_prefix, txo_bin)
def write_tx_input(self, w: writers.Writer, txi: TxInputType) -> None:
writers.write_tx_input_decred(w, txi)
def write_tx_output(self, w: writers.Writer, txo_bin: TxOutputBinType) -> None:
writers.write_tx_output_decred(w, txo_bin)
def write_tx_header(
self, w: writers.Writer, tx: Union[SignTx, TransactionType], has_segwit: bool
) -> None:

5
core/src/apps/wallet/sign_tx/writers.py
View File

@ -65,6 +65,11 @@ def write_tx_input_decred_witness(w: Writer, i: TxInputType) -> None:
def write_tx_output(w: Writer, o: TxOutputBinType) -> None:
write_uint64(w, o.amount)
write_bytes_prefixed(w, o.script_pubkey)
def write_tx_output_decred(w: Writer, o: TxOutputBinType) -> None:
write_uint64(w, o.amount)
if o.decred_script_version is not None:
write_uint16(w, o.decred_script_version)