manage exchange plugins, make sure ui doesn't stall while saving seed
and numerous other small fixes.
This commit is contained in:
qua-non
@@ -2,109 +2,240 @@
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'''Module exchange_rate:
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This module is responsible for getting the conversion rates between different
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currencies.
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This module is responsible for getting the conversion rates from different
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bitcoin exchanges.
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'''
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from kivy.network.urlrequest import UrlRequest
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#kivy.event import EventDispatcher
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from kivy.event import EventDispatcher
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from kivy.properties import (OptionProperty, StringProperty, AliasProperty,
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ListProperty)
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from kivy.clock import Clock
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import decimal
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import json
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class Exchanger(object):
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'''
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EXCHANGES = ["BitcoinAverage",
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"BitcoinVenezuela",
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"BitPay",
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"Blockchain",
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"BTCChina",
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"CaVirtEx",
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"Coinbase",
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"CoinDesk",
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"LocalBitcoins",
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"Winkdex"]
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class Exchanger(EventDispatcher):
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''' Provide exchanges rate between crypto and different national
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currencies. See Module Documentation for details.
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'''
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symbols = {'ALL': 'Lek', 'AED': 'د.إ', 'AFN':'؋', 'ARS': '$', 'AMD': '֏',
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'AWG': 'ƒ', 'ANG': 'ƒ', 'AOA': 'Kz', 'BDT': '৳', 'BHD': 'BD',
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'BIF': 'FBu', 'BTC': 'BTC', 'BTN': 'Nu',
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'AUD': '$', 'AZN': 'ман', 'BSD': '$', 'BBD': '$', 'BYR': 'p',
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'BIF': 'FBu', 'BTC': 'BTC', 'BTN': 'Nu', 'CDF': 'FC', 'CHF': 'CHF',
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'CLF': 'UF', 'CLP':'$', 'CVE': '$', 'DJF':'Fdj', 'DZD': 'دج',
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'AUD': '$', 'AZN': 'ман', 'BSD': '$', 'BBD': '$', 'BYR': 'p', 'CRC': '₡',
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'BZD': 'BZ$', 'BMD': '$', 'BOB': '$b', 'BAM': 'KM', 'BWP': 'P',
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'BGN': 'лв', 'BRL': 'R$', 'BND': '$', 'KHR': '៛', 'CAD': '$',
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'KYD': '$', 'USD': '$', 'CLP': '$', 'CNY': '¥', 'COP': '$', 'CRC': '₡',
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'ERN': 'Nfk', 'ETB': 'Br', 'KYD': '$', 'USD': '$', 'CLP': '$',
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'HRK': 'kn', 'CUP':'₱', 'CZK': 'Kč', 'DKK': 'kr', 'DOP': 'RD$',
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'XCD': '$', 'EGP': '£', 'SVC': '$' , 'EEK': 'kr', 'EUR': '€',
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'FKP': '£', 'FJD': '$', 'GHC': '¢', 'GIP': '£', 'GTQ': 'Q', 'GBP': '£',
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'GYD': '$', 'HNL': 'L', 'HKD': '$', 'HUF': 'Ft', 'ISK': 'kr',
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'INR': '₹', 'IDR': 'Rp', 'IRR': '﷼', 'IMP': '£', 'ILS': '₪',
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'INR': '₹', 'IDR': 'Rp', 'IRR': '﷼', 'IMP': '£', 'ILS': '₪', 'COP': '$',
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'JMD': 'J$', 'JPY': '¥', 'JEP': '£', 'KZT': 'лв', 'KPW': '₩',
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'KRW': '₩', 'KGS': 'лв', 'LAK': '₭', 'LVL': 'Ls'}
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'KRW': '₩', 'KGS': 'лв', 'LAK': '₭', 'LVL': 'Ls', 'CNY': '¥'}
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_use_exchange = OptionProperty('Blockchain', options=EXCHANGES)
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'''This is the exchange to be used for getting the currency exchange rates
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'''
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_currency = StringProperty('EUR')
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'''internal use only
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'''
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def _set_currency(self, value):
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exchanger = self.exchanger
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if self.use_exchange == 'CoinDesk':
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self._update_cd_currency(self.currency)
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return
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try:
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self._currency = value
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self.electrum_cinfig.set_key('currency', value, True)
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except AttributeError:
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self._currency = 'EUR'
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def _get_currency(self):
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try:
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self._currency = self.electrum_config.get('currency', 'EUR')
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except AttributeError:
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pass
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finally:
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return self._currency
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currency = AliasProperty(_get_currency, _set_currency, bind=('_currency',))
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currencies = ListProperty(['EUR', 'GBP', 'USD'])
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'''List of currencies supported by the current exchanger plugin.
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:attr:`currencies` is a `ListProperty` default to ['Eur', 'GBP'. 'USD'].
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'''
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def _get_useex(self):
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if not self.parent:
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return self._use_exchange
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self._use_exchange = self.parent.electrum_config.get('use_exchange',
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'Blockchain')
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return self._use_exchange
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def _set_useex(self, value):
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if not self.parent:
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return self._use_exchange
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self.parent.electrum_config.set_key('use_exchange', value, True)
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self._use_exchange = value
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use_exchange = AliasProperty(_get_useex, _set_useex,
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bind=('_use_exchange', ))
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def __init__(self, parent):
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super(Exchanger, self).__init__()
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self.parent = parent
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self.quote_currencies = None
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self.exchanges = ('BlockChain', 'Coinbase', 'CoinDesk')
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try:
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self.use_exchange = parent.electrum_config.get('use_exchange',
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'BlockChain')
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except AttributeError:
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self.use_exchange = 'BlockChain'
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self.currencies = self.symbols.keys()
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self.exchanges = EXCHANGES
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def exchange(self, btc_amount, quote_currency):
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if self.quote_currencies is None:
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return None
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quote_currencies = self.quote_currencies.copy()
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if quote_currency not in quote_currencies:
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return None
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if self.use_exchange == "CoinDesk":
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try:
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connection = httplib.HTTPSConnection('api.coindesk.com')
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connection.request("GET", "/v1/bpi/currentprice/" + str(quote_currency) + ".json")
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except Exception:
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return
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resp = connection.getresponse()
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if resp.reason == httplib.responses[httplib.NOT_FOUND]:
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return
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try:
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resp_rate = json.loads(resp.read())
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except Exception:
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return
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return btc_amount * decimal.Decimal(str(resp_rate["bpi"][str(quote_currency)]["rate_float"]))
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return btc_amount * decimal.Decimal(quote_currencies[quote_currency])
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def check_rates(self, dt):
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if self.use_exchange == 'BlockChain':
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self.check_blockchain()
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elif self.use_exchange == 'CoinDesk':
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self.check_coindesk()
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elif self.use_exchange == 'Coinbase':
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self.check_coinbase()
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def update_rate(self, dt):
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''' This is called from :method:`start` every X seconds; to update the
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rates for currencies for the currently selected exchange.
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'''
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update_rates = {
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"BitcoinAverage": self.update_ba,
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"BitcoinVenezuela": self.update_bv,
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"BitPay": self.update_bp,
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"Blockchain": self.update_bc,
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"BTCChina": self.update_CNY,
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"CaVirtEx": self.update_cv,
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"CoinDesk": self.update_cd,
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"Coinbase": self.update_cb,
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"LocalBitcoins": self.update_lb,
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"Winkdex": self.update_wd,
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}
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try:
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update_rates[self.use_exchange]()
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except KeyError:
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return
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def check_coindesk(self):
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def update_wd(self):
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def _lookup_rate(response, quote_id):
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return decimal.Decimal(str(response[str(quote_id)]["15m"]))
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def on_success(request, response):
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response = json.loads(response)
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quote_currencies = {'USD': 0.0}
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lenprices = len(response["prices"])
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usdprice = response['prices'][lenprices-1]['y']
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try:
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quote_currencies["USD"] = decimal.Decimal(usdprice)
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except KeyError:
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pass
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self.quote_currencies = quote_currencies
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self.parent.set_currencies(quote_currencies)
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req = UrlRequest(
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url='https://winkdex.com/static/data/0_600_288.json',
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on_success=on_success,
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timeout=5)
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def update_cd_currency(self, currency):
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def on_success(request, response):
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response = json.loads(response)
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quote_currencies = self.quote_currencies
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quote_currencies[currency] =\
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str(response['bpi'][str(currency)]['rate_float'])
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self.parent.set_currencies(quote_currencies)
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req = UrlRequest(
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url='https://api.coindesk.com/v1/bpi/currentprice/'\
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+ str(currency) + '.json',on_success=on_success, timeout=5)
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def update_cd(self):
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def on_success(request, response):
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quote_currencies = {}
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response = json.loads(response)
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for cur in response:
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quote_currencies[str(cur["currency"])] = 0.0
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self.quote_currencies = quote_currencies
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self.update_cd_currency(self.currency)
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req = UrlRequest(
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url='https://api.coindesk.com/v1/bpi/supported-currencies.json',
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on_success=on_success,
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timeout=5)
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def update_cv(self):
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def on_success(request, response):
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response = json.loads(response)
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quote_currencies = {"CAD": 0.0}
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cadprice = response["last"]
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try:
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for r in response:
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quote_currencies[r] = _lookup_rate(response, r)
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quote_currencies["CAD"] = decimal.Decimal(cadprice)
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self.quote_currencies = quote_currencies
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except KeyError:
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pass
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self.parent.set_currencies(quote_currencies)
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def on_failure(*args):
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pass
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def on_error(*args):
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pass
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def on_redirect(*args):
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pass
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req = UrlRequest(
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url='https://api.coindesk.com/v1/bpi/supported-currencies.json',
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req = UrlRequest(url='https://www.cavirtex.com/api/CAD/ticker.json',
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on_success=on_success,
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on_failure=on_failure,
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on_error=on_error,
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on_redirect=on_redirect,
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timeout=5)
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def check_coinbase(self):
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def update_CNY(self):
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def on_success(request, response):
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quote_currencies = {"CNY": 0.0}
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cnyprice = response["ticker"]["last"]
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try:
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quote_currencies["CNY"] = decimal.Decimal(cnyprice)
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self.quote_currencies = quote_currencies
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except KeyError:
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pass
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self.parent.set_currencies(quote_currencies)
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req = UrlRequest(url='https://data.btcchina.com/data/ticker',
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on_success=on_success,
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timeout=5)
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def update_bp(self):
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def on_success(request, response):
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quote_currencies = {}
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try:
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for r in response:
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quote_currencies[str(r['code'])] = decimal.Decimal(r['rate'])
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self.quote_currencies = quote_currencies
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except KeyError:
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pass
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self.parent.set_currencies(quote_currencies)
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req = UrlRequest(url='https://bitpay.com/api/rates',
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on_success=on_success,
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timeout=5)
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def update_cb(self):
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def _lookup_rate(response, quote_id):
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return decimal.Decimal(str(response[str(quote_id)]))
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@@ -121,24 +252,12 @@ class Exchanger(object):
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pass
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self.parent.set_currencies(quote_currencies)
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def on_failure(*args):
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pass
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def on_error(*args):
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pass
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def on_redirect(*args):
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pass
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req = UrlRequest(
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url='https://coinbase.com/api/v1/currencies/exchange_rates',
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on_success=on_success,
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on_failure=on_failure,
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on_error=on_error,
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on_redirect=on_redirect,
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timeout=5)
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def check_blockchain(self):
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def update_bc(self):
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def _lookup_rate(response, quote_id):
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return decimal.Decimal(str(response[str(quote_id)]["15m"]))
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@@ -153,27 +272,69 @@ class Exchanger(object):
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pass
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self.parent.set_currencies(quote_currencies)
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def on_failure(*args):
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pass
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def on_error(*args):
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pass
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def on_redirect(*args):
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pass
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req = UrlRequest(url='https://blockchain.info/ticker',
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on_success=on_success,
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on_failure=on_failure,
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on_error=on_error,
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on_redirect=on_redirect,
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timeout=5)
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def update_lb(self):
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def _lookup_rate(response, quote_id):
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return decimal.Decimal(response[str(quote_id)]["rates"]["last"])
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def on_success(request, response):
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quote_currencies = {}
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try:
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for r in response:
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quote_currencies[r] = _lookup_rate(response, r)
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self.quote_currencies = quote_currencies
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except KeyError:
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pass
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self.parent.set_currencies(quote_currencies)
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req = UrlRequest(
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url='https://localbitcoins.com/bitcoinaverage/ticker-all-currencies/',
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on_success=on_success,
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timeout=5)
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def update_ba(self):
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def on_success(request, response):
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quote_currencies = {}
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try:
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for r in response:
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quote_currencies[r] = decimal.Decimal(response[r][u'last'])
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self.quote_currencies = quote_currencies
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except TypeError:
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pass
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self.parent.set_currencies(quote_currencies)
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req = UrlRequest(url='https://api.bitcoinaverage.com/ticker/global/all',
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on_success=on_success,
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timeout=5)
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def update_bv(self):
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def on_success(request, response):
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quote_currencies = {}
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try:
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for r in response["BTC"]:
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quote_currencies[r] = decimal.Decimal(response['BTC'][r])
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self.quote_currencies = quote_currencies
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except KeyError:
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pass
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self.parent.set_currencies(quote_currencies)
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req = UrlRequest(url='https://api.bitcoinvenezuela.com/',
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on_success=on_success,
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timeout=5)
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def start(self):
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# check every 5 seconds
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self.check_rates(0)
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Clock.schedule_interval(self.check_rates, 5)
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# check rates every few seconds
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self.update_rate(0)
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# check every few seconds
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Clock.unschedule(self.update_rate)
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Clock.schedule_interval(self.update_rate, 20)
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def stop(self):
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Clock.unschedule(self.check_rates)
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Clock.unschedule(self.update_rate)
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Reference in New Issue
Block a user