You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
284 lines
9.4 KiB
284 lines
9.4 KiB
from PyQt4.QtGui import *
|
|
from PyQt4.QtCore import *
|
|
|
|
import decimal
|
|
import httplib
|
|
import json
|
|
import threading
|
|
import re
|
|
from decimal import Decimal
|
|
from electrum.plugins import BasePlugin
|
|
from electrum.i18n import _
|
|
from electrum_gui.qt.util import *
|
|
|
|
|
|
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.use_exchange = self.parent.config.get('use_exchange', "Blockchain")
|
|
self.parent.exchanges = ["CoinDesk", "Blockchain", "Coinbase"]
|
|
self.parent.currencies = ["EUR","GBP","USD"]
|
|
self.parent.win.emit(SIGNAL("refresh_exchanges_combo()"))
|
|
self.parent.win.emit(SIGNAL("refresh_currencies_combo()"))
|
|
self.is_running = False
|
|
|
|
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:
|
|
connection = httplib.HTTPSConnection('api.coindesk.com')
|
|
connection.request("GET", "/v1/bpi/currentprice/" + str(quote_currency) + ".json")
|
|
except Exception:
|
|
return
|
|
resp = connection.getresponse()
|
|
if resp.reason == httplib.responses[httplib.NOT_FOUND]:
|
|
return
|
|
try:
|
|
resp_rate = json.loads(resp.read())
|
|
except Exception:
|
|
return
|
|
return btc_amount * decimal.Decimal(str(resp_rate["bpi"][str(quote_currency)]["rate_float"]))
|
|
return btc_amount * decimal.Decimal(quote_currencies[quote_currency])
|
|
|
|
def stop(self):
|
|
self.is_running = False
|
|
|
|
def run(self):
|
|
self.is_running = True
|
|
while self.is_running:
|
|
self.use_exchange = self.parent.config.get('use_exchange', "Blockchain")
|
|
if self.use_exchange == "Blockchain":
|
|
self.update_bc()
|
|
elif self.use_exchange == "CoinDesk":
|
|
self.update_cd()
|
|
elif self.use_exchange == "Coinbase":
|
|
self.update_cb()
|
|
time.sleep(150)
|
|
|
|
|
|
def update_cd(self):
|
|
try:
|
|
connection = httplib.HTTPSConnection('api.coindesk.com')
|
|
connection.request("GET", "/v1/bpi/supported-currencies.json")
|
|
except Exception:
|
|
return
|
|
response = connection.getresponse()
|
|
if response.reason == httplib.responses[httplib.NOT_FOUND]:
|
|
return
|
|
try:
|
|
resp_currencies = json.loads(response.read())
|
|
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_cb(self):
|
|
try:
|
|
connection = httplib.HTTPSConnection('coinbase.com')
|
|
connection.request("GET", "/api/v1/currencies/exchange_rates")
|
|
except Exception:
|
|
return
|
|
response = connection.getresponse()
|
|
if response.reason == httplib.responses[httplib.NOT_FOUND]:
|
|
return
|
|
|
|
try:
|
|
response = json.loads(response.read())
|
|
except Exception:
|
|
return
|
|
|
|
quote_currencies = {}
|
|
try:
|
|
for r in response:
|
|
if r[:7] == "btc_to_":
|
|
quote_currencies[r[7:].upper()] = self._lookup_rate_cb(response, r)
|
|
with self.lock:
|
|
self.quote_currencies = quote_currencies
|
|
except KeyError:
|
|
pass
|
|
self.parent.set_currencies(quote_currencies)
|
|
|
|
|
|
def update_bc(self):
|
|
try:
|
|
connection = httplib.HTTPSConnection('blockchain.info')
|
|
connection.request("GET", "/ticker")
|
|
except Exception:
|
|
return
|
|
response = connection.getresponse()
|
|
if response.reason == httplib.responses[httplib.NOT_FOUND]:
|
|
return
|
|
try:
|
|
response = json.loads(response.read())
|
|
except Exception:
|
|
return
|
|
quote_currencies = {}
|
|
try:
|
|
for r in response:
|
|
quote_currencies[r] = self._lookup_rate(response, 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 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)]))
|
|
|
|
|
|
|
|
class Plugin(BasePlugin):
|
|
|
|
def fullname(self):
|
|
return "Exchange rates"
|
|
|
|
def description(self):
|
|
return """exchange rates, retrieved from blockchain.info"""
|
|
|
|
|
|
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)
|
|
# 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 set_quote_text(self, btc_balance, r):
|
|
r[0] = self.create_quote_text(Decimal(btc_balance) / 100000000)
|
|
|
|
def create_quote_text(self, btc_balance):
|
|
quote_currency = self.config.get("currency", "EUR")
|
|
self.exchanger.use_exchange = self.config.get("use_exchange", "Blockchain")
|
|
quote_balance = self.exchanger.exchange(btc_balance, quote_currency)
|
|
if quote_balance is None:
|
|
quote_text = ""
|
|
else:
|
|
quote_text = "%.2f %s" % (quote_balance, quote_currency)
|
|
return quote_text
|
|
|
|
|
|
def requires_settings(self):
|
|
return True
|
|
|
|
|
|
def toggle(self):
|
|
out = BasePlugin.toggle(self)
|
|
self.win.update_status()
|
|
return out
|
|
|
|
|
|
def close(self):
|
|
self.exchanger.stop()
|
|
|
|
|
|
def settings_widget(self, window):
|
|
return EnterButton(_('Settings'), self.settings_dialog)
|
|
|
|
def settings_dialog(self):
|
|
d = QDialog()
|
|
layout = QGridLayout(d)
|
|
layout.addWidget(QLabel(_('Exchange rate API: ')), 0, 0)
|
|
layout.addWidget(QLabel(_('Currency: ')), 1, 0)
|
|
combo = QComboBox()
|
|
combo_ex = QComboBox()
|
|
ok_button = QPushButton(_("OK"))
|
|
|
|
def on_change(x):
|
|
cur_request = str(self.currencies[x])
|
|
if cur_request != self.config.get('currency', "EUR"):
|
|
self.config.set_key('currency', cur_request, True)
|
|
self.win.update_status()
|
|
|
|
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.win.update_status()
|
|
if cur_request == "Blockchain":
|
|
self.exchanger.update_bc()
|
|
elif cur_request == "CoinDesk":
|
|
self.exchanger.update_cd()
|
|
elif cur_request == "Coinbase":
|
|
self.exchanger.update_cb()
|
|
set_currencies(combo)
|
|
|
|
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)
|
|
combo.currentIndexChanged.connect(on_change)
|
|
combo_ex.currentIndexChanged.connect(on_change_ex)
|
|
combo.connect(d, 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(ok_button,2,1)
|
|
|
|
if d.exec_():
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
|
|
|
|
|