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mirror of https://github.com/trezor/trezor-firmware.git synced 2024-11-12 18:49:07 +00:00
trezor-firmware/trezorlib/coins.py
matejcik 54f1599a5a regenerate license headers
This clarifies the intent: the project is licenced under terms
of LGPL version 3 only, but the standard headers cover only "3 or later",
so we had to rewrite them.

In the same step, we removed author information from individual files
in favor of "SatoshiLabs and contributors", and include an AUTHORS
file that lists the contributors.

Apologies to those whose names are missing; please contact us if you wish
to add your info to the AUTHORS file.
2018-06-21 16:49:13 +02:00

61 lines
2.1 KiB
Python

# This file is part of the Trezor project.
#
# Copyright (C) 2012-2018 SatoshiLabs and contributors
#
# This library is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License version 3
# as published by the Free Software Foundation.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the License along with this library.
# If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.
import os.path
import json
from .tx_api import TxApiInsight, TxApiBlockCypher
COINS_JSON = os.path.join(os.path.dirname(__file__), 'coins.json')
def _load_coins_json():
# Load coins.json to local variables
# NOTE: coins.json comes from 'vendor/trezor-common/coins.json',
# which is a git submodule. If you're trying to run trezorlib directly
# from the checkout (or tarball), initialize the submodule with:
# $ git submodule update --init
# and install coins.json with:
# $ python setup.py prebuild
with open(COINS_JSON) as coins_json:
return json.load(coins_json)
def _insight_for_coin(coin):
if not coin['bitcore']:
return None
zcash = coin['coin_name'].lower().startswith('zcash')
network = 'insight_{}'.format(coin['coin_name'].lower().replace(' ', '_'))
url = coin['bitcore'][0] + '/api/'
return TxApiInsight(network=network, url=url, zcash=zcash)
# exported variables
__all__ = ['by_name', 'slip44', 'tx_api']
try:
by_name = _load_coins_json()
except Exception as e:
raise ImportError("Failed to load coins.json. Check your installation.") from e
slip44 = {name: coin['slip44'] for name, coin in by_name.items()}
tx_api = {name: _insight_for_coin(coin)
for name, coin in by_name.items()
if coin["bitcore"]}
# fixup for Dogecoin
tx_api['Dogecoin'] = TxApiBlockCypher(network='blockcypher_dogecoin', url='https://api.blockcypher.com/v1/doge/main/')