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https://github.com/trezor/trezor-firmware.git
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61 lines
2.0 KiB
Python
61 lines
2.0 KiB
Python
# This file is part of the Trezor project.
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#
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# Copyright (C) 2012-2018 SatoshiLabs and contributors
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#
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# This library is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License version 3
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# as published by the Free Software Foundation.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the License along with this library.
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# If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.
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import json
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import os.path
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from .tx_api import TxApiInsight
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COINS_JSON = os.path.join(os.path.dirname(__file__), "coins.json")
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def _load_coins_json():
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# Load coins.json to local variables
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# NOTE: coins.json comes from 'vendor/trezor-common/coins.json',
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# which is a git submodule. If you're trying to run trezorlib directly
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# from the checkout (or tarball), initialize the submodule with:
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# $ git submodule update --init
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# and install coins.json with:
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# $ python setup.py prebuild
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with open(COINS_JSON) as coins_json:
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return json.load(coins_json)
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def _insight_for_coin(coin):
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url = next(iter(coin["blockbook"] + coin["bitcore"]), None)
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if not url:
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return None
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zcash = coin["coin_name"].lower().startswith("zcash")
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bip115 = coin["bip115"]
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network = "insight_{}".format(coin["coin_name"].lower().replace(" ", "_"))
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return TxApiInsight(network=network, url=url, zcash=zcash, bip115=bip115)
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# exported variables
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__all__ = ["by_name", "slip44", "tx_api"]
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try:
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by_name = _load_coins_json()
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except Exception as e:
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raise ImportError("Failed to load coins.json. Check your installation.") from e
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slip44 = {name: coin["slip44"] for name, coin in by_name.items()}
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tx_api = {
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name: _insight_for_coin(coin)
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for name, coin in by_name.items()
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if coin["blockbook"] or coin["bitcore"]
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}
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