def getjsonorders(instrument, t):
""" Returns open orders from redis orderbook. """
orders = []
if config.is_valid_instrument(instrument):
if t == "bid":
bids = redis.zrange(instrument + "/bid", 0, -1, withscores=True)
for bid in bids:
orders.append({
"price": bid[1],
"amount": redis.hget(bid[0], "amount")
})
else:
asks = redis.zrange(instrument + "/ask", 0, -1, withscores=True)
for ask in asks:
orders.append({
"price": ask[1],
"amount": redis.hget(ask[0], "amount")
})
# So prices are not quoted in satoshis
# TODO: move this client side?
for order in orders:
order['amount'] = float(order['amount']) / config.get_multiplier(
instrument.split("_")[0])
else:
orders.append("Invalid trade pair!")
jo = json.dumps(orders)
return Response(jo, mimetype='application/json')
def withdraw(currency):
if not is_logged_in(session):
flash("Please log in to perform that action.", "error")
return home_page("ltc_btc")
if not config.is_valid_currency(currency):
flash("Invalid Currency!", "error")
return account_page()
if request.method == 'GET':
return account_page(withdraw=currency)
elif request.method == 'POST':
if 'amount' not in request.form or 'address' not in request.form:
flash("Please enter an address and an amount!", "error")
return account_page()
try:
total = string_to_currency_unit(
request.form['amount'],
config.get_multiplier(currency))
except:
flash("Invalid amount!", "error")
return account_page()
if check_balance(currency, session['userid']) < total or total < 0:
flash("Balance too low to execute withdrawal!", "error")
return account_page()
# TODO: add valid address checking
adjustbalance(currency, session['userid'], -1 * total)
co = CompletedOrder(
currency +
"_" +
currency,
"WITHDRAWAL",
total,
0,
session['userid'],
is_withdrawal=True,
withdrawal_address=request.form['address'])
db_session.add(co)
db_session.commit()
flash("Deposit to " + request.form['address'] + " completed!", "success")
return account_page()
def getjsonorders(instrument, t):
""" Returns open orders from redis orderbook. """
orders = []
if config.is_valid_instrument(instrument):
if t == "bid":
bids = redis.zrange(instrument + "/bid", 0, -1, withscores=True)
for bid in bids:
orders.append(
{"price": bid[1], "amount": redis.hget(bid[0], "amount")})
else:
asks = redis.zrange(instrument + "/ask", 0, -1, withscores=True)
for ask in asks:
orders.append(
{"price": ask[1], "amount": redis.hget(ask[0], "amount")})
# So prices are not quoted in satoshis
# TODO: move this client side?
for order in orders:
order['amount'] = float(
order['amount']) / config.get_multiplier(instrument.split("_")[0])
else:
orders.append("Invalid trade pair!")
jo = json.dumps(orders)
return Response(jo, mimetype='application/json')
def addorder():
""" Checks balance and essential stuff, generates an order ID then adds order to a redis queue. """
instrument = request.form['currency_pair']
if not is_logged_in(session):
flash("Please log in to perform that action.", "error")
return home_page(instrument)
# They shouldn't be able to modify the trade pair, if it isnt valid either
# I messed up somewhere or they are trying to do something wrong
if not config.is_valid_instrument(instrument):
flash("Unknown Error, contact the administrator!", "error")
return home_page("ltc_btc")
base_currency = request.form['currency_pair'].split("_")[0]
quote_currency = request.form['currency_pair'].split("_")[1]
try:
rprice = Decimal(request.form['price'])
ramount = string_to_currency_unit(
request.form['amount'],
config.get_multiplier(base_currency))
print(ramount)
except Exception as e:
print(e)
flash("Please enter numerical values for price and amount!", "error")
return home_page(instrument)
if ramount < 1: # TODO: find a good amount for this
flash("Transaction amount too low!", "error")
return home_page(instrument)
if rprice <= 0:
flash("Price must be greater than 0!", "error")
return home_page(instrument)
getcontext().prec = 6
whole, dec = ExtendedContext.divmod(
rprice * ramount / config.get_multiplier(base_currency), Decimal(1))
total = int(
whole *
config.get_multiplier(base_currency) +
dec *
config.get_multiplier(base_currency))
print("total: " + str(total))
uid = session['userid']
orderid = generate_password_hash(str(random.random()))
instrument = request.form['currency_pair']
bidtable = instrument + "/bid"
asktable = instrument + "/ask"
if request.form['ordertype'] == 'buy':
currency = quote_currency
if check_balance(currency, session['userid']) < total:
flash("Balance too low to execute order!", "error")
return home_page(instrument)
else:
adjustbalance(currency, session['userid'], -1 * total)
elif request.form['ordertype'] == 'sell':
currency = base_currency
if check_balance(currency, uid) < ramount:
flash("Balance too low to execute order!", "error")
return home_page(instrument)
else:
adjustbalance(currency, uid, -1 * ramount)
else:
# invalid order type, they must have been messing around
flash("Unknown Error, contact the administrator!", "error")
return home_page(instrument)
redis.hmset(orderid,
{"ordertype": request.form['ordertype'],
"instrument": request.form['currency_pair'],
"amount": ramount,
"uid": uid,
"price": rprice})
redis.rpush("order_queue", orderid)
redis.sadd(str(uid) + "/orders", orderid)
flash("Order placed successfully!","dismissable")
return home_page(instrument)
def openorders(uid):
if not is_logged_in(session):
return home_page("ltc_btc",danger="Please log in to perform that action.")
orders = redis.smembers(str(uid)+"/orders")
r = []
for o in orders:
c = redis.hgetall(o)
base_currency = c['instrument'][0:c['instrument'].find("_")]
quote_currency = c['instrument'][c['instrument'].find("_")+1:]
instrument = (base_currency+"/"+quote_currency).upper()
r.append([instrument, c['ordertype'], c['price'] + " " + instrument, str(float(c['amount'])/config.get_multiplier(base_currency)) + " " + base_currency.upper(), o])
return r
def tradehistory(currency, uid):
if not is_logged_in(session):
return home_page("ltc_btc",danger="Please log in to perform that action.")
orders = CompletedOrder.query.filter(CompletedOrder.user == uid).filter(CompletedOrder.base_currency==str(currency)).all()
orders2 = []
for o in orders:
if o.is_deposit:
orders2.append(["DEPOSIT", o.order_type, o.price, str(o.amount) + " " + str(o.base_currency).upper()])
elif o.is_withdrawal:
orders2.append(["WITHDRAWAL", o.order_type, o.price, str(o.amount) + " " + str(o.base_currency).upper()])
else:
orders2.append([o.currency_pair, o.order_type, (str(o.price) + " " + o.quote_currency + "/" + o.base_currency).upper(), str(float(o.amount)/config.get_multiplier(currency))+ " " + str(o.base_currency).upper()])
return orders2
