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ob-watcher.py
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ob-watcher.py
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from __future__ import absolute_import
import BaseHTTPServer
import SimpleHTTPServer
import base64
import io
import json
import threading
import time
import urllib2
from decimal import Decimal
from optparse import OptionParser
# data_dir = os.path.dirname(os.path.realpath(__file__))
# sys.path.insert(0, os.path.join(data_dir, 'joinmarket'))
# https://stackoverflow.com/questions/2801882/generating-a-png-with-matplotlib-when-display-is-undefined
import matplotlib
from joinmarket import jm_single, load_program_config, MessageChannelCollection
from joinmarket import calc_cj_fee, OrderbookWatch, get_irc_mchannels
from joinmarket import IRCMessageChannel, get_log
log = get_log()
matplotlib.use('Agg')
import matplotlib.pyplot as plt
shutdownform = '<form action="shutdown" method="post"><input type="submit" value="Shutdown" /></form>'
shutdownpage = '<html><body><center><h1>Successfully Shut down</h1></center></body></html>'
refresh_orderbook_form = '<form action="refreshorderbook" method="post"><input type="submit" value="Check for timed-out counterparties" /></form>'
sorted_units = ('BTC', 'mBTC', 'μBTC', 'satoshi')
unit_to_power = {'BTC': 8, 'mBTC': 5, 'μBTC': 2, 'satoshi': 0}
sorted_rel_units = ('%', '‱', 'ppm')
rel_unit_to_factor = {'%': 100, '‱': 1e4, 'ppm': 1e6}
def calc_depth_data(db, value):
pass
def create_depth_chart(db, cj_amount, args=None):
if args is None:
args = {}
sqlorders = db.execute('SELECT * FROM orderbook;').fetchall()
orderfees = sorted([calc_cj_fee(o['ordertype'], o['cjfee'], cj_amount) / 1e8
for o in sqlorders
if o['minsize'] <= cj_amount <= o[
'maxsize']])
if len(orderfees) == 0:
return 'No orders at amount ' + str(cj_amount / 1e8)
fig = plt.figure()
scale = args.get("scale")
if (scale is not None) and (scale[0] == "log"):
orderfees = [float(fee) for fee in orderfees]
if orderfees[0] > 0:
ratio = orderfees[-1] / orderfees[0]
step = ratio ** 0.0333 # 1/30
bins = [orderfees[0] * (step ** i) for i in range(30)]
else:
ratio = orderfees[-1] / 1e-8 # single satoshi placeholder
step = ratio ** 0.0333 # 1/30
bins = [1e-8 * (step ** i) for i in range(30)]
bins[0] = orderfees[0] # replace placeholder
plt.xscale('log')
else:
bins = 30
if len(orderfees) == 1: # these days we have liquidity, but just in case...
plt.hist(orderfees, bins, rwidth=0.8, range=(0, orderfees[0] * 2))
else:
plt.hist(orderfees, bins, rwidth=0.8)
plt.grid()
plt.title('CoinJoin Orderbook Depth Chart for amount=' + str(cj_amount /
1e8) + 'btc')
plt.xlabel('CoinJoin Fee / btc')
plt.ylabel('Frequency')
return get_graph_html(fig)
def create_size_histogram(db, args):
rows = db.execute('SELECT maxsize FROM orderbook;').fetchall()
ordersizes = sorted([r['maxsize'] / 1e8 for r in rows])
fig = plt.figure()
scale = args.get("scale")
if (scale is not None) and (scale[0] == "log"):
ratio = ordersizes[-1] / ordersizes[0]
step = ratio ** 0.0333 # 1/30
bins = [ordersizes[0] * (step ** i) for i in range(30)]
else:
bins = 30
plt.hist(ordersizes, bins, histtype='bar', rwidth=0.8)
if bins is not 30:
fig.axes[0].set_xscale('log')
plt.grid()
plt.xlabel('Order sizes / btc')
plt.ylabel('Frequency')
return get_graph_html(fig) + ("<br/><a href='?scale=log'>log scale</a>" if
bins == 30 else "<br/><a href='?'>linear</a>")
def get_graph_html(fig):
imbuf = io.BytesIO()
fig.savefig(imbuf, format='png')
b64 = base64.b64encode(imbuf.getvalue())
return '<img src="data:image/png;base64,' + b64 + '" />'
# callback functions for displaying order data
def do_nothing(arg, order, btc_unit, rel_unit):
return arg
def ordertype_display(ordertype, order, btc_unit, rel_unit):
ordertypes = {'absoffer': 'Absolute Fee', 'reloffer': 'Relative Fee'}
return ordertypes[ordertype]
def cjfee_display(cjfee, order, btc_unit, rel_unit):
if order['ordertype'] == 'absoffer':
return satoshi_to_unit(cjfee, order, btc_unit, rel_unit)
elif order['ordertype'] == 'reloffer':
return str(float(cjfee) * rel_unit_to_factor[rel_unit]) + rel_unit
def satoshi_to_unit(sat, order, btc_unit, rel_unit):
power = unit_to_power[btc_unit]
return ("%." + str(power) + "f") % float(
Decimal(sat) / Decimal(10 ** power))
def order_str(s, order, btc_unit, rel_unit):
return str(s)
def create_orderbook_table(db, btc_unit, rel_unit):
result = ''
rows = db.execute('SELECT * FROM orderbook;').fetchall()
if not rows:
return 0, result
order_keys_display = (('ordertype', ordertype_display),
('counterparty', do_nothing), ('oid', order_str),
('cjfee', cjfee_display), ('txfee', satoshi_to_unit),
('minsize', satoshi_to_unit),
('maxsize', satoshi_to_unit))
# somewhat complex sorting to sort by cjfee but with absoffers on top
def orderby_cmp(x, y):
if x['ordertype'] == y['ordertype']:
return cmp(Decimal(x['cjfee']), Decimal(y['cjfee']))
return cmp(jm_single().ordername_list.index(x['ordertype']),
jm_single().ordername_list.index(y['ordertype']))
for o in sorted(rows, cmp=orderby_cmp):
result += ' <tr>\n'
for key, displayer in order_keys_display:
result += ' <td>' + displayer(o[key], o, btc_unit,
rel_unit) + '</td>\n'
result += ' </tr>\n'
return len(rows), result
def create_table_heading(btc_unit, rel_unit):
col = ' <th>{1}</th>\n' # .format(field,label)
tableheading = '<table class="tftable sortable" border="1">\n <tr>' + ''.join(
[
col.format('ordertype', 'Type'), col.format(
'counterparty', 'Counterparty'),
col.format('oid', 'Order ID'),
col.format('cjfee', 'Fee'), col.format(
'txfee', 'Miner Fee Contribution / ' + btc_unit),
col.format(
'minsize', 'Minimum Size / ' + btc_unit), col.format(
'maxsize', 'Maximum Size / ' + btc_unit)
]) + ' </tr>'
return tableheading
def create_choose_units_form(selected_btc, selected_rel):
choose_units_form = (
'<form method="get" action="">' +
'<select name="btcunit" onchange="this.form.submit();">' +
''.join(('<option>' + u + ' </option>' for u in sorted_units)) +
'</select><select name="relunit" onchange="this.form.submit();">' +
''.join(('<option>' + u + ' </option>' for u in sorted_rel_units)) +
'</select></form>')
choose_units_form = choose_units_form.replace(
'<option>' + selected_btc,
'<option selected="selected">' + selected_btc)
choose_units_form = choose_units_form.replace(
'<option>' + selected_rel,
'<option selected="selected">' + selected_rel)
return choose_units_form
class OrderbookPageRequestHeader(SimpleHTTPServer.SimpleHTTPRequestHandler):
def __init__(self, request, client_address, base_server):
self.taker = base_server.taker
self.base_server = base_server
SimpleHTTPServer.SimpleHTTPRequestHandler.__init__(
self, request, client_address, base_server)
def create_orderbook_obj(self):
rows = self.taker.db.execute('SELECT * FROM orderbook;').fetchall()
if not rows:
return []
result = []
for row in rows:
o = dict(row)
if 'cjfee' in o:
o['cjfee'] = int(o['cjfee']) if o[
'ordertype'] == 'absoffer' else float(
o['cjfee'])
result.append(o)
return result
def get_counterparty_count(self):
counterparties = self.taker.db.execute(
'SELECT DISTINCT counterparty FROM orderbook;').fetchall()
return str(len(counterparties))
def do_GET(self):
# SimpleHTTPServer.SimpleHTTPRequestHandler.do_GET(self)
# print 'httpd received ' + self.path + ' request'
self.path, query = self.path.split('?', 1) if '?' in self.path else (
self.path, '')
args = urllib2.urlparse.parse_qs(query)
pages = ['/', '/ordersize', '/depth', '/orderbook.json']
if self.path not in pages:
return
fd = open('orderbook.html', 'r')
orderbook_fmt = fd.read()
fd.close()
alert_msg = ''
if jm_single().joinmarket_alert[0]:
alert_msg = '<br />JoinMarket Alert Message:<br />' + \
jm_single().joinmarket_alert[0]
if self.path == '/':
btc_unit = args['btcunit'][
0] if 'btcunit' in args else sorted_units[0]
rel_unit = args['relunit'][
0] if 'relunit' in args else sorted_rel_units[0]
if btc_unit not in sorted_units:
btc_unit = sorted_units[0]
if rel_unit not in sorted_rel_units:
rel_unit = sorted_rel_units[0]
ordercount, ordertable = create_orderbook_table(
self.taker.db, btc_unit, rel_unit)
choose_units_form = create_choose_units_form(btc_unit, rel_unit)
table_heading = create_table_heading(btc_unit, rel_unit)
replacements = {
'PAGETITLE': 'JoinMarket Browser Interface',
'MAINHEADING': 'JoinMarket Orderbook',
'SECONDHEADING':
(str(ordercount) + ' orders found by ' +
self.get_counterparty_count() + ' counterparties' + alert_msg),
'MAINBODY': (
shutdownform + refresh_orderbook_form + choose_units_form +
table_heading + ordertable + '</table>\n')
}
elif self.path == '/ordersize':
replacements = {
'PAGETITLE': 'JoinMarket Browser Interface',
'MAINHEADING': 'Order Sizes',
'SECONDHEADING': 'Order Size Histogram' + alert_msg,
'MAINBODY': create_size_histogram(self.taker.db, args)
}
elif self.path.startswith('/depth'):
# if self.path[6] == '?':
# quantity =
cj_amounts = [10 ** cja for cja in range(4, 12, 1)]
mainbody = [create_depth_chart(self.taker.db, cja, args) \
for cja in cj_amounts] + \
["<br/><a href='?'>linear</a>" if args.get("scale") \
else "<br/><a href='?scale=log'>log scale</a>"]
replacements = {
'PAGETITLE': 'JoinMarket Browser Interface',
'MAINHEADING': 'Depth Chart',
'SECONDHEADING': 'Orderbook Depth' + alert_msg,
'MAINBODY': '<br />'.join(mainbody)
}
elif self.path == '/orderbook.json':
replacements = {}
orderbook_fmt = json.dumps(self.create_orderbook_obj())
orderbook_page = orderbook_fmt
for key, rep in replacements.iteritems():
orderbook_page = orderbook_page.replace(key, rep)
self.send_response(200)
if self.path.endswith('.json'):
self.send_header('Content-Type', 'application/json')
else:
self.send_header('Content-Type', 'text/html')
self.send_header('Content-Length', len(orderbook_page))
self.end_headers()
self.wfile.write(orderbook_page)
def do_POST(self):
pages = ['/shutdown', '/refreshorderbook']
if self.path not in pages:
return
if self.path == '/shutdown':
self.taker.msgchan.shutdown()
self.send_response(200)
self.send_header('Content-Type', 'text/html')
self.send_header('Content-Length', len(shutdownpage))
self.end_headers()
self.wfile.write(shutdownpage)
self.base_server.__shutdown_request = True
elif self.path == '/refreshorderbook':
self.taker.msgchan.request_orderbook()
time.sleep(5)
self.path = '/'
self.do_GET()
class HTTPDThread(threading.Thread):
def __init__(self, taker, hostport):
threading.Thread.__init__(self, name='HTTPDThread')
self.daemon = True
self.taker = taker
self.hostport = hostport
def run(self):
# hostport = ('localhost', 62601)
httpd = BaseHTTPServer.HTTPServer(self.hostport,
OrderbookPageRequestHeader)
httpd.taker = self.taker
print('\nstarted http server, visit http://{0}:{1}/\n'.format(
*self.hostport))
httpd.serve_forever()
class GUITaker(OrderbookWatch):
def __init__(self, msgchan, hostport):
self.hostport = hostport
super(GUITaker, self).__init__(msgchan)
def on_welcome(self):
OrderbookWatch.on_welcome(self)
HTTPDThread(self, self.hostport).start()
def main():
load_program_config()
parser = OptionParser(
usage='usage: %prog [options]',
description='Runs a webservice which shows the orderbook.')
parser.add_option('-H',
'--host',
action='store',
type='string',
dest='host',
default='localhost',
help='hostname or IP to bind to, default=localhost')
parser.add_option('-p',
'--port',
action='store',
type='int',
dest='port',
help='port to listen on, default=62601',
default=62601)
(options, args) = parser.parse_args()
hostport = (options.host, options.port)
mcs = [IRCMessageChannel(c) for c in get_irc_mchannels()]
mcc = MessageChannelCollection(mcs)
log.info("Starting ob-watcher")
# todo: is the call to GUITaker needed, or the return. taker unused
taker = GUITaker(mcc, hostport)
print('starting irc')
mcc.run()
if __name__ == "__main__":
main()
print('done')