52 lines
2.0 KiB
Python
52 lines
2.0 KiB
Python
from apps.common.confirm import *
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from trezor import ui
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from trezor.utils import chunks, format_amount
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from trezor.messages import ButtonRequestType
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from trezor.ui.text import Text
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from ubinascii import hexlify
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from . import networks
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async def confirm_tx(ctx, to, value, chain_id, token=None): # TODO: wording
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str_to = '0x' + hexlify(to).decode() # TODO: use ethereum address format
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content = Text('Confirm transaction', ui.ICON_DEFAULT,
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ui.BOLD, format_ethereum_amount(value, token, chain_id),
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ui.NORMAL, 'to',
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ui.MONO, *split_address(str_to))
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return await confirm(ctx, content, ButtonRequestType.SignTx) # we use SignTx, not ConfirmOutput, for compatibility with T1
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async def confirm_fee(ctx, spending, gas_price, gas_limit, chain_id, token=None): # TODO: wording
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content = Text('Confirm fee', ui.ICON_DEFAULT,
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'Sending: %s' % format_ethereum_amount(spending, token, chain_id),
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'Gas: %s' % format_ethereum_amount(gas_price, token, chain_id),
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'Limit: %s' % format_ethereum_amount(gas_limit, token, chain_id))
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return await hold_to_confirm(ctx, content, ButtonRequestType.SignTx)
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async def confirm_data(ctx, data, data_total): # TODO: wording
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str_data = hexlify(data[:8]).decode() + '..'
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content = Text('Confirm data:', ui.ICON_DEFAULT,
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ui.MONO, str_data,
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'Total: ', str(data_total) + 'B')
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return await confirm(ctx, content, ButtonRequestType.SignTx) # we use SignTx, not ConfirmOutput, for compatibility with T1
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def split_address(address):
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return chunks(address, 17)
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def format_ethereum_amount(value, token, chain_id):
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value = int.from_bytes(value, 'big')
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if token:
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suffix = token['symbol']
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decimals = token['decimal']
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elif value < 1e18:
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suffix = 'Wei'
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decimals = 0
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else:
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decimals = 18
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suffix = networks.suffix_by_chain_id(chain_id)
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return '%s %s' % (format_amount(value, decimals), suffix)
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