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from PyQt4.QtGui import *
from PyQt4.QtCore import *
import datetime
import decimal
import httplib
import json
import threading
import time
import re
from decimal import Decimal
from electrum.plugins import BasePlugin
from electrum.i18n import _
from electrum_gui.qt.util import *
from electrum_gui.qt.amountedit import AmountEdit
EXCHANGES = ["BitcoinAverage",
"BitcoinVenezuela",
"Bitcurex",
"Bitmarket",
"BitPay",
"Blockchain",
"BTCChina",
"CaVirtEx",
"Coinbase",
"CoinDesk",
"LocalBitcoins",
"Winkdex"]
class Exchanger(threading.Thread):
def __init__(self, parent):
threading.Thread.__init__(self)
self.daemon = True
self.parent = parent
self.quote_currencies = None
self.lock = threading.Lock()
self.query_rates = threading.Event()
self.use_exchange = self.parent.config.get('use_exchange', "Blockchain")
self.parent.exchanges = EXCHANGES
self.parent.currencies = ["EUR","GBP","USD","PLN"]
self.parent.win.emit(SIGNAL("refresh_exchanges_combo()"))
self.parent.win.emit(SIGNAL("refresh_currencies_combo()"))
self.is_running = False
def get_json(self, site, get_string):
try:
connection = httplib.HTTPSConnection(site)
connection.request("GET", get_string)
except Exception:
raise
resp = connection.getresponse()
if resp.reason == httplib.responses[httplib.NOT_FOUND]:
raise
try:
json_resp = json.loads(resp.read())
except Exception:
raise
return json_resp
def exchange(self, btc_amount, quote_currency):
with self.lock:
if self.quote_currencies is None:
return None
quote_currencies = self.quote_currencies.copy()
if quote_currency not in quote_currencies:
return None
if self.use_exchange == "CoinDesk":
try:
resp_rate = self.get_json('api.coindesk.com', "/v1/bpi/currentprice/" + str(quote_currency) + ".json")
except Exception:
return
return btc_amount * decimal.Decimal(str(resp_rate["bpi"][str(quote_currency)]["rate_float"]))
return btc_amount * decimal.Decimal(str(quote_currencies[quote_currency]))
def stop(self):
self.is_running = False
def update_rate(self):
self.use_exchange = self.parent.config.get('use_exchange', "Blockchain")
update_rates = {
"BitcoinAverage": self.update_ba,
"BitcoinVenezuela": self.update_bv,
"Bitcurex": self.update_bx,
"Bitmarket": self.update_bm,
"BitPay": self.update_bp,
"Blockchain": self.update_bc,
"BTCChina": self.update_CNY,
"CaVirtEx": self.update_cv,
"CoinDesk": self.update_cd,
"Coinbase": self.update_cb,
"LocalBitcoins": self.update_lb,
"Winkdex": self.update_wd,
}
try:
update_rates[self.use_exchange]()
except KeyError:
return
def run(self):
self.is_running = True
while self.is_running:
self.query_rates.clear()
self.update_rate()
self.query_rates.wait(150)
def update_cd(self):
try:
resp_currencies = self.get_json('api.coindesk.com', "/v1/bpi/supported-currencies.json")
except Exception:
return
quote_currencies = {}
for cur in resp_currencies:
quote_currencies[str(cur["currency"])] = 0.0
with self.lock:
self.quote_currencies = quote_currencies
self.parent.set_currencies(quote_currencies)
def update_wd(self):
try:
winkresp = self.get_json('winkdex.com', "/static/data/0_600_288.json")
####could need nonce value in GET, no Docs available
except Exception:
return
quote_currencies = {"USD": 0.0}
####get y of highest x in "prices"
lenprices = len(winkresp["prices"])
usdprice = winkresp["prices"][lenprices-1]["y"]
try:
quote_currencies["USD"] = decimal.Decimal(str(usdprice))
with self.lock:
self.quote_currencies = quote_currencies
except KeyError:
pass
self.parent.set_currencies(quote_currencies)
def update_cv(self):
try:
jsonresp = self.get_json('www.cavirtex.com', "/api/CAD/ticker.json")
except Exception:
return
quote_currencies = {"CAD": 0.0}
cadprice = jsonresp["last"]
try:
quote_currencies["CAD"] = decimal.Decimal(str(cadprice))
with self.lock:
self.quote_currencies = quote_currencies
except KeyError:
pass
self.parent.set_currencies(quote_currencies)
def update_bm(self):
try:
jsonresp = self.get_json('www.bitmarket.pl', "/json/BTCPLN/ticker.json")
except Exception:
return
quote_currencies = {"PLN": 0.0}
pln_price = jsonresp["last"]
try:
quote_currencies["PLN"] = decimal.Decimal(str(pln_price))
with self.lock:
self.quote_currencies = quote_currencies
except KeyError:
pass
self.parent.set_currencies(quote_currencies)
def update_bx(self):
try:
jsonresp = self.get_json('pln.bitcurex.com', "/data/ticker.json")
except Exception:
return
quote_currencies = {"PLN": 0.0}
pln_price = jsonresp["last"]
try:
quote_currencies["PLN"] = decimal.Decimal(str(pln_price))
with self.lock:
self.quote_currencies = quote_currencies
except KeyError:
pass
self.parent.set_currencies(quote_currencies)
def update_CNY(self):
try:
jsonresp = self.get_json('data.btcchina.com', "/data/ticker")
except Exception:
return
quote_currencies = {"CNY": 0.0}
cnyprice = jsonresp["ticker"]["last"]
try:
quote_currencies["CNY"] = decimal.Decimal(str(cnyprice))
with self.lock:
self.quote_currencies = quote_currencies
except KeyError:
pass
self.parent.set_currencies(quote_currencies)
def update_bp(self):
try:
jsonresp = self.get_json('bitpay.com', "/api/rates")
except Exception:
return
quote_currencies = {}
try:
for r in jsonresp:
quote_currencies[str(r["code"])] = decimal.Decimal(r["rate"])
with self.lock:
self.quote_currencies = quote_currencies
except KeyError:
pass
self.parent.set_currencies(quote_currencies)
def update_cb(self):
try:
jsonresp = self.get_json('coinbase.com', "/api/v1/currencies/exchange_rates")
except Exception:
return
quote_currencies = {}
try:
for r in jsonresp:
if r[:7] == "btc_to_":
quote_currencies[r[7:].upper()] = self._lookup_rate_cb(jsonresp, r)
with self.lock:
self.quote_currencies = quote_currencies
except KeyError:
pass
self.parent.set_currencies(quote_currencies)
def update_bc(self):
try:
jsonresp = self.get_json('blockchain.info', "/ticker")
except Exception:
return
quote_currencies = {}
try:
for r in jsonresp:
quote_currencies[r] = self._lookup_rate(jsonresp, r)
with self.lock:
self.quote_currencies = quote_currencies
except KeyError:
pass
self.parent.set_currencies(quote_currencies)
# print "updating exchange rate", self.quote_currencies["USD"]
def update_lb(self):
try:
jsonresp = self.get_json('localbitcoins.com', "/bitcoinaverage/ticker-all-currencies/")
except Exception:
return
quote_currencies = {}
try:
for r in jsonresp:
quote_currencies[r] = self._lookup_rate_lb(jsonresp, r)
with self.lock:
self.quote_currencies = quote_currencies
except KeyError:
pass
self.parent.set_currencies(quote_currencies)
def update_bv(self):
try:
jsonresp = self.get_json('api.bitcoinvenezuela.com', "/")
except Exception:
return
quote_currencies = {}
try:
for r in jsonresp["BTC"]:
quote_currencies[r] = Decimal(jsonresp["BTC"][r])
with self.lock:
self.quote_currencies = quote_currencies
except KeyError:
pass
self.parent.set_currencies(quote_currencies)
def update_ba(self):
try:
jsonresp = self.get_json('api.bitcoinaverage.com', "/ticker/global/all")
except Exception:
return
quote_currencies = {}
try:
for r in jsonresp:
if not r == "timestamp":
quote_currencies[r] = self._lookup_rate_ba(jsonresp, r)
with self.lock:
self.quote_currencies = quote_currencies
except KeyError:
pass
self.parent.set_currencies(quote_currencies)
def get_currencies(self):
return [] if self.quote_currencies == None else sorted(self.quote_currencies.keys())
def _lookup_rate(self, response, quote_id):
return decimal.Decimal(str(response[str(quote_id)]["15m"]))
def _lookup_rate_cb(self, response, quote_id):
return decimal.Decimal(str(response[str(quote_id)]))
def _lookup_rate_ba(self, response, quote_id):
return decimal.Decimal(response[str(quote_id)]["last"])
def _lookup_rate_lb(self, response, quote_id):
return decimal.Decimal(response[str(quote_id)]["rates"]["last"])
class Plugin(BasePlugin):
def fullname(self):
return "Exchange rates"
def description(self):
return """exchange rates, retrieved from blockchain.info, CoinDesk, or Coinbase"""
def __init__(self,a,b):
BasePlugin.__init__(self,a,b)
self.currencies = [self.config.get('currency', "EUR")]
self.exchanges = [self.config.get('use_exchange', "Blockchain")]
def init(self):
self.win = self.gui.main_window
self.win.connect(self.win, SIGNAL("refresh_currencies()"), self.win.update_status)
self.btc_rate = Decimal("0.0")
# Do price discovery
self.exchanger = Exchanger(self)
self.exchanger.start()
self.gui.exchanger = self.exchanger #
def set_currencies(self, currency_options):
self.currencies = sorted(currency_options)
self.win.emit(SIGNAL("refresh_currencies()"))
self.win.emit(SIGNAL("refresh_currencies_combo()"))
def get_fiat_balance_text(self, btc_balance, r):
# return balance as: 1.23 USD
r[0] = self.create_fiat_balance_text(Decimal(btc_balance) / 100000000)
def get_fiat_price_text(self, r):
# return BTC price as: 123.45 USD
r[0] = self.create_fiat_balance_text(1)
quote = r[0]
if quote:
r[0] = "%s"%quote
def get_fiat_status_text(self, btc_balance, r2):
# return status as: (1.23 USD) 1 BTC~123.45 USD
text = ""
r = {}
self.get_fiat_price_text(r)
quote = r.get(0)
if quote:
price_text = "1 BTC~%s"%quote
fiat_currency = quote[-3:]
btc_price = quote[:-4]
fiat_balance = Decimal(btc_price) * (Decimal(btc_balance)/100000000)
balance_text = "(%.2f %s)" % (fiat_balance,fiat_currency)
text = " " + balance_text + " " + price_text + " "
r2[0] = text
def create_fiat_balance_text(self, btc_balance):
quote_currency = self.config.get("currency", "EUR")
self.exchanger.use_exchange = self.config.get("use_exchange", "Blockchain")
cur_rate = self.exchanger.exchange(Decimal("1.0"), quote_currency)
if cur_rate is None:
quote_text = ""
else:
quote_balance = btc_balance * Decimal(cur_rate)
self.btc_rate = cur_rate
quote_text = "%.2f %s" % (quote_balance, quote_currency)
return quote_text
def load_wallet(self, wallet):
self.wallet = wallet
tx_list = {}
for item in self.wallet.get_tx_history(self.wallet.storage.get("current_account", None)):
tx_hash, conf, is_mine, value, fee, balance, timestamp = item
tx_list[tx_hash] = {'value': value, 'timestamp': timestamp, 'balance': balance}
self.tx_list = tx_list
def requires_settings(self):
return True
def toggle(self):
out = BasePlugin.toggle(self)
self.win.update_status()
if self.config.get('use_exchange_rate'):
try:
self.fiat_button
except:
self.gui.main_window.show_message(_("To see fiat amount when sending bitcoin, please restart Electrum to activate the new GUI settings."))
return out
def close(self):
self.exchanger.stop()
def history_tab_update(self):
if self.config.get('history_rates', 'unchecked') == "checked":
cur_exchange = self.config.get('use_exchange', "Blockchain")
try:
tx_list = self.tx_list
except Exception:
return
try:
mintimestr = datetime.datetime.fromtimestamp(int(min(tx_list.items(), key=lambda x: x[1]['timestamp'])[1]['timestamp'])).strftime('%Y-%m-%d')
except Exception:
return
maxtimestr = datetime.datetime.now().strftime('%Y-%m-%d')
if cur_exchange == "CoinDesk":
try:
resp_hist = self.exchanger.get_json('api.coindesk.com', "/v1/bpi/historical/close.json?start=" + mintimestr + "&end=" + maxtimestr)
except Exception:
return
elif cur_exchange == "Winkdex":
try:
resp_hist = self.exchanger.get_json('winkdex.com', "/static/data/0_86400_730.json")['prices']
except Exception:
return
elif cur_exchange == "BitcoinVenezuela":
cur_currency = self.config.get('currency', "EUR")
if cur_currency == "VEF":
try:
resp_hist = self.exchanger.get_json('api.bitcoinvenezuela.com', "/historical/index.php")['VEF_BTC']
except Exception:
return
elif cur_currency == "ARS":
try:
resp_hist = self.exchanger.get_json('api.bitcoinvenezuela.com', "/historical/index.php")['ARS_BTC']
except Exception:
return
else:
return
self.gui.main_window.is_edit = True
self.gui.main_window.history_list.setColumnCount(6)
self.gui.main_window.history_list.setHeaderLabels( [ '', _('Date'), _('Description') , _('Amount'), _('Balance'), _('Fiat Amount')] )
root = self.gui.main_window.history_list.invisibleRootItem()
childcount = root.childCount()
for i in range(childcount):
item = root.child(i)
try:
tx_info = tx_list[str(item.data(0, Qt.UserRole).toPyObject())]
except Exception:
newtx = self.wallet.get_tx_history()
v = newtx[[x[0] for x in newtx].index(str(item.data(0, Qt.UserRole).toPyObject()))][3]
tx_info = {'timestamp':int(time.time()), 'value': v }
pass
tx_time = int(tx_info['timestamp'])
if cur_exchange == "CoinDesk":
tx_time_str = datetime.datetime.fromtimestamp(tx_time).strftime('%Y-%m-%d')
try:
tx_USD_val = "%.2f %s" % (Decimal(str(tx_info['value'])) / 100000000 * Decimal(resp_hist['bpi'][tx_time_str]), "USD")
except KeyError:
tx_USD_val = "%.2f %s" % (self.btc_rate * Decimal(str(tx_info['value']))/100000000 , "USD")
elif cur_exchange == "Winkdex":
tx_time_str = int(tx_time) - (int(tx_time) % (60 * 60 * 24))
try:
tx_rate = resp_hist[[x['x'] for x in resp_hist].index(tx_time_str)]['y']
tx_USD_val = "%.2f %s" % (Decimal(tx_info['value']) / 100000000 * Decimal(tx_rate), "USD")
except ValueError:
tx_USD_val = "%.2f %s" % (self.btc_rate * Decimal(tx_info['value'])/100000000 , "USD")
elif cur_exchange == "BitcoinVenezuela":
tx_time_str = datetime.datetime.fromtimestamp(tx_time).strftime('%Y-%m-%d')
try:
num = resp_hist[tx_time_str].replace(',','')
tx_BTCVEN_val = "%.2f %s" % (Decimal(str(tx_info['value'])) / 100000000 * Decimal(num), cur_currency)
except KeyError:
tx_BTCVEN_val = _("No data")
if cur_exchange == "CoinDesk" or cur_exchange == "Winkdex":
item.setText(5, tx_USD_val)
elif cur_exchange == "BitcoinVenezuela":
item.setText(5, tx_BTCVEN_val)
if Decimal(str(tx_info['value'])) < 0:
item.setForeground(5, QBrush(QColor("#BC1E1E")))
for i, width in enumerate(self.gui.main_window.column_widths['history']):
self.gui.main_window.history_list.setColumnWidth(i, width)
self.gui.main_window.history_list.setColumnWidth(4, 140)
self.gui.main_window.history_list.setColumnWidth(5, 120)
self.gui.main_window.is_edit = False
def settings_widget(self, window):
return EnterButton(_('Settings'), self.settings_dialog)
def settings_dialog(self):
d = QDialog()
d.setWindowTitle("Settings")
layout = QGridLayout(d)
layout.addWidget(QLabel(_('Exchange rate API: ')), 0, 0)
layout.addWidget(QLabel(_('Currency: ')), 1, 0)
layout.addWidget(QLabel(_('History Rates: ')), 2, 0)
combo = QComboBox()
combo_ex = QComboBox()
hist_checkbox = QCheckBox()
hist_checkbox.setEnabled(False)
if self.config.get('history_rates', 'unchecked') == 'unchecked':
hist_checkbox.setChecked(False)
else:
hist_checkbox.setChecked(True)
ok_button = QPushButton(_("OK"))
def on_change(x):
try:
cur_request = str(self.currencies[x])
except Exception:
return
if cur_request != self.config.get('currency', "EUR"):
self.config.set_key('currency', cur_request, True)
cur_exchange = self.config.get('use_exchange', "Blockchain")
if cur_request == "USD" and (cur_exchange == "CoinDesk" or cur_exchange == "Winkdex"):
hist_checkbox.setEnabled(True)
elif cur_request == "VEF" and (cur_exchange == "BitcoinVenezuela"):
hist_checkbox.setEnabled(True)
elif cur_request == "ARS" and (cur_exchange == "BitcoinVenezuela"):
hist_checkbox.setEnabled(True)
else:
hist_checkbox.setChecked(False)
hist_checkbox.setEnabled(False)
self.win.update_status()
try:
self.fiat_button
except:
pass
else:
self.fiat_button.setText(cur_request)
def disable_check():
hist_checkbox.setChecked(False)
hist_checkbox.setEnabled(False)
def on_change_ex(x):
cur_request = str(self.exchanges[x])
if cur_request != self.config.get('use_exchange', "Blockchain"):
self.config.set_key('use_exchange', cur_request, True)
self.currencies = []
combo.clear()
self.exchanger.query_rates.set()
cur_currency = self.config.get('currency', "EUR")
if cur_request == "CoinDesk" or cur_request == "Winkdex":
if cur_currency == "USD":
hist_checkbox.setEnabled(True)
else:
disable_check()
elif cur_request == "BitcoinVenezuela":
if cur_currency == "VEF" or cur_currency == "ARS":
hist_checkbox.setEnabled(True)
else:
disable_check()
else:
disable_check()
set_currencies(combo)
self.win.update_status()
def on_change_hist(checked):
if checked:
self.config.set_key('history_rates', 'checked')
self.history_tab_update()
else:
self.config.set_key('history_rates', 'unchecked')
self.gui.main_window.history_list.setHeaderLabels( [ '', _('Date'), _('Description') , _('Amount'), _('Balance')] )
self.gui.main_window.history_list.setColumnCount(5)
for i,width in enumerate(self.gui.main_window.column_widths['history']):
self.gui.main_window.history_list.setColumnWidth(i, width)
def set_hist_check(hist_checkbox):
cur_exchange = self.config.get('use_exchange', "Blockchain")
if cur_exchange == "CoinDesk" or cur_exchange == "Winkdex":
hist_checkbox.setEnabled(True)
elif cur_exchange == "BitcoinVenezuela":
hist_checkbox.setEnabled(True)
else:
hist_checkbox.setEnabled(False)
def set_currencies(combo):
current_currency = self.config.get('currency', "EUR")
try:
combo.clear()
except Exception:
return
combo.addItems(self.currencies)
try:
index = self.currencies.index(current_currency)
except Exception:
index = 0
combo.setCurrentIndex(index)
def set_exchanges(combo_ex):
try:
combo_ex.clear()
except Exception:
return
combo_ex.addItems(self.exchanges)
try:
index = self.exchanges.index(self.config.get('use_exchange', "Blockchain"))
except Exception:
index = 0
combo_ex.setCurrentIndex(index)
def ok_clicked():
d.accept();
set_exchanges(combo_ex)
set_currencies(combo)
set_hist_check(hist_checkbox)
combo.currentIndexChanged.connect(on_change)
combo_ex.currentIndexChanged.connect(on_change_ex)
hist_checkbox.stateChanged.connect(on_change_hist)
combo.connect(self.win, SIGNAL('refresh_currencies_combo()'), lambda: set_currencies(combo))
combo_ex.connect(d, SIGNAL('refresh_exchanges_combo()'), lambda: set_exchanges(combo_ex))
ok_button.clicked.connect(lambda: ok_clicked())
layout.addWidget(combo,1,1)
layout.addWidget(combo_ex,0,1)
layout.addWidget(hist_checkbox,2,1)
layout.addWidget(ok_button,3,1)
if d.exec_():
return True
else:
return False
def fiat_unit(self):
quote_currency = self.config.get("currency", "???")
return quote_currency
def fiat_dialog(self):
if not self.config.get('use_exchange_rate'):
self.gui.main_window.show_message(_("To use this feature, first enable the exchange rate plugin."))
return
if not self.gui.main_window.network.is_connected():
self.gui.main_window.show_message(_("To use this feature, you must have a network connection."))
return
quote_currency = self.fiat_unit()
d = QDialog(self.gui.main_window)
d.setWindowTitle("Fiat")
vbox = QVBoxLayout(d)
text = "Amount to Send in " + quote_currency
vbox.addWidget(QLabel(_(text)+':'))
grid = QGridLayout()
fiat_e = AmountEdit(self.fiat_unit)
grid.addWidget(fiat_e, 1, 0)
r = {}
self.get_fiat_price_text(r)
quote = r.get(0)
if quote:
text = "1 BTC~%s"%quote
grid.addWidget(QLabel(_(text)), 4, 0, 3, 0)
else:
self.gui.main_window.show_message(_("Exchange rate not available. Please check your network connection."))
return
vbox.addLayout(grid)
vbox.addLayout(ok_cancel_buttons(d))
if not d.exec_():
return
fiat = str(fiat_e.text())
if str(fiat) == "" or str(fiat) == ".":
fiat = "0"
quote = quote[:-4]
btcamount = Decimal(fiat) / Decimal(quote)
if str(self.gui.main_window.base_unit()) == "mBTC":
btcamount = btcamount * 1000
quote = "%.8f"%btcamount
self.gui.main_window.amount_e.setText( quote )
def exchange_rate_button(self, grid):
quote_currency = self.config.get("currency", "EUR")
self.fiat_button = EnterButton(_(quote_currency), self.fiat_dialog)
grid.addWidget(self.fiat_button, 4, 3, Qt.AlignHCenter)