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Generator of list of coins and tokens supported by Trezor.
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260747dfa4
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121
coins_details.py
Executable file
121
coins_details.py
Executable file
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#!/usr/bin/env python3
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"""Fetch information about coins and tokens supported by Trezor and update it in coins_details.json."""
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import time
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import json
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import requests
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import pprint
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SKIP_COINMARKETCAP = False
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def coinmarketcap_info(shortcut):
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if SKIP_COINMARKETCAP:
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raise Exception("Skipping coinmarketcap call")
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shortcut = shortcut.replace(' ', '-')
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url = 'https://api.coinmarketcap.com/v1/ticker/%s/?convert=USD' % shortcut
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ret = requests.get(url)
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data = ret.json()
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try:
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return data[0]
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except:
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print("Cannot fetch info for %s" % shortcut)
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def update_marketcap(obj, shortcut):
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try:
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obj['marketcap_usd'] = int(float(coinmarketcap_info(shortcut)['market_cap_usd']))
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except:
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pass
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def coinmarketcap_global():
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if SKIP_COINMARKETCAP:
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raise Exception("Skipping coinmarketcap call")
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url = 'https://api.coinmarketcap.com/v1/global'
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ret = requests.get(url)
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data = ret.json()
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return data
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def set_default(obj, key, default_value):
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obj[key] = obj.setdefault(key, default_value)
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def update_info(details):
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details['info']['updated_at'] = int(time.time())
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details['info']['updated_at_readable'] = time.asctime()
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details['info']['coins'] = len(details['coins'])
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try:
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details['info']['total_marketcap_usd'] = int(coinmarketcap_global()['total_market_cap_usd'])
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except:
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pass
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marketcap = 0
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for c in details['coins']:
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marketcap += details['coins'][c].setdefault('marketcap_usd', 0)
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details['info']['marketcap_usd'] = marketcap
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def update_coins(details):
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coins = json.load(open('coins.json', 'r'))
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for coin in coins:
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if coin['firmware'] != 'stable':
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continue
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print("Updating", coin['coin_label'], coin['coin_shortcut'])
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out = details['coins'].setdefault(coin['coin_shortcut'], {})
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out['shortcut'] = coin['coin_shortcut']
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out['type'] = 'coin'
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set_default(out, 'name', coin['coin_label'])
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set_default(out, 't1_enabled', 'yes')
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set_default(out, 't2_enabled', 'yes')
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update_marketcap(out, coin['coin_label'])
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#pprint.pprint(coin)
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def update_erc20(details):
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# FIXME Parse tokens using trezor-common/ethereum_tokens-gen.py
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r = requests.get('https://raw.githubusercontent.com/trezor/trezor-core/master/src/apps/ethereum/tokens.py')
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d = {}
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exec(r.text, d)
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for t in d['tokens']:
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token = t[2]
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print('Updating', token)
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out = details['coins'].setdefault(token, {})
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out['type'] = 'erc20'
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out['chain_id'] = t[0]
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set_default(out, 't1_enabled', 'yes')
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set_default(out, 't2_enabled', 'yes')
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def update_ethereum(details):
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print('Updating Ethereum ETH')
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out = details['coins'].setdefault('ETH', {})
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out['name'] = 'Ethereum'
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out['type'] = 'coin'
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set_default(out, 't1_enabled', 'yes')
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set_default(out, 't2_enabled', 'yes')
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update_marketcap(out, 'ethereum')
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def update_nem(details):
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print('Updating NEM')
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out = details['coins'].setdefault('NEM', {})
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out['name'] = 'NEM'
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out['type'] = 'coin'
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set_default(out, 't1_enabled', 'yes')
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set_default(out, 't2_enabled', 'yes')
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update_marketcap(out, 'nem')
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if __name__ == '__main__':
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try:
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details = json.load(open('coins_details.json', 'r'))
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except FileNotFoundError:
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details = {'coins': {}, 'info': {}}
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update_coins(details)
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update_erc20(details)
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update_ethereum(details)
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update_nem(details)
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update_info(details)
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print(json.dumps(details, sort_keys=True, indent=4))
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json.dump(details, open('coins_details.json', 'w'), sort_keys=True, indent=4)
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