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basicswap_miserver
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Host-customized fork of https://github.com/tecnovert/basicswap/
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basicswap_miserver/basicswap/http_server.py

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# -*- coding: utf-8 -*-
# Copyright (c) 2019 tecnovert
# Distributed under the MIT software license, see the accompanying
# file LICENSE.txt or http://www.opensource.org/licenses/mit-license.php.
import os
import json
import time
import struct
import traceback
import threading
import http.client
import urllib.parse
from http.server import BaseHTTPRequestHandler, HTTPServer
from jinja2 import Environment, PackageLoader
from . import __version__
from .util import (
COIN,
format8,
makeInt,
)
from .chainparams import (
chainparams,
Coins,
)
from .basicswap import (
SwapTypes,
BidStates,
TxStates,
TxTypes,
strOfferState,
strBidState,
strTxState,
getLockName,
SEQUENCE_LOCK_TIME,
ABS_LOCK_TIME,
)
def format_timestamp(value):
return time.strftime('%Y-%m-%d %H:%M', time.localtime(value))
env = Environment(loader=PackageLoader('basicswap', 'templates'))
env.filters['formatts'] = format_timestamp
PAGE_LIMIT = 50
def getCoinName(c):
return chainparams[c]['name'].capitalize()
def listAvailableCoins(swap_client):
coins = []
for k, v in swap_client.coin_clients.items():
if v['connection_type'] == 'rpc':
coins.append((int(k), getCoinName(k)))
return coins
def getTxIdHex(bid, tx_type, prefix):
if tx_type == TxTypes.ITX:
obj = bid.initiate_tx
elif tx_type == TxTypes.PTX:
obj = bid.participate_tx
else:
return 'Unknown Type'
if not obj:
return 'None'
if not obj.txid:
return 'None'
return obj.txid.hex() + prefix
def getTxSpendHex(bid, tx_type):
if tx_type == TxTypes.ITX:
obj = bid.initiate_tx
elif tx_type == TxTypes.PTX:
obj = bid.participate_tx
else:
return 'Unknown Type'
if not obj:
return 'None'
if not obj.spend_txid:
return 'None'
return obj.spend_txid.hex() + ' {}'.format(obj.spend_n)
def validateAmountString(amount):
if type(amount) != str:
return
ar = amount.split('.')
if len(ar) > 0 and len(ar[1]) > 8:
raise ValueError('Too many decimal places in amount {}'.format(amount))
def html_content_start(title, h2=None, refresh=None):
content = '<!DOCTYPE html><html lang="en">\n<head>' \
+ '<meta charset="UTF-8">' \
+ ('' if not refresh else '<meta http-equiv="refresh" content="{}">'.format(refresh)) \
+ '<title>' + title + '</title></head>\n' \
+ '<body>'
if h2 is not None:
content += '<h2>' + h2 + '</h2>'
return content
class HttpHandler(BaseHTTPRequestHandler):
def page_error(self, error_str):
content = html_content_start('BasicSwap Error') \
+ '<p>Error: ' + error_str + '</p>' \
+ '<p><a href=\'/\'>home</a></p></body></html>'
return bytes(content, 'UTF-8')
def checkForm(self, post_string, name, messages):
if post_string == '':
return None
form_data = urllib.parse.parse_qs(post_string)
form_id = form_data[b'formid'][0].decode('utf-8')
if self.server.last_form_id.get(name, None) == form_id:
messages.append('Prevented double submit for form {}.'.format(form_id))
else:
self.server.last_form_id[name] = form_id
return form_data
def js_error(self, error_str):
error_str_json = json.dumps({'error': error_str})
return bytes(error_str_json, 'UTF-8')
def js_wallets(self, url_split):
return bytes(json.dumps(self.server.swap_client.getWalletsInfo()), 'UTF-8')
def js_offers(self, url_split):
assert(False), 'TODO'
return bytes(json.dumps(self.server.swap_client.listOffers()), 'UTF-8')
def js_sentoffers(self, url_split):
assert(False), 'TODO'
return bytes(json.dumps(self.server.swap_client.listOffers(sent=True)), 'UTF-8')
def js_bids(self, url_split):
if len(url_split) > 3:
bid_id = bytes.fromhex(url_split[3])
assert(len(bid_id) == 28)
return bytes(json.dumps(self.server.swap_client.viewBid(bid_id)), 'UTF-8')
assert(False), 'TODO'
return bytes(json.dumps(self.server.swap_client.listBids()), 'UTF-8')
def js_sentbids(self, url_split):
return bytes(json.dumps(self.server.swap_client.listBids(sent=True)), 'UTF-8')
def js_index(self, url_split):
return bytes(json.dumps(self.server.swap_client.getSummary()), 'UTF-8')
def page_rpc(self, url_split, post_string):
swap_client = self.server.swap_client
result = None
coin_type = -1
messages = []
form_data = self.checkForm(post_string, 'rpc', messages)
if form_data:
try:
coin_type = Coins(int(form_data[b'coin_type'][0]))
except Exception:
raise ValueError('Unknown Coin Type')
cmd = form_data[b'cmd'][0].decode('utf-8')
try:
result = cmd + '\n' + swap_client.callcoincli(coin_type, cmd)
except Exception as ex:
result = str(ex)
template = env.get_template('rpc.html')
return bytes(template.render(
title=self.server.title,
h2=self.server.title,
coins=listAvailableCoins(swap_client),
coin_type=coin_type,
result=result,
form_id=os.urandom(8).hex(),
), 'UTF-8')
def page_active(self, url_split, post_string):
swap_client = self.server.swap_client
active_swaps = swap_client.listSwapsInProgress()
template = env.get_template('active.html')
return bytes(template.render(
title=self.server.title,
refresh=30,
h2=self.server.title,
active_swaps=[(s[0].hex(), s[1], strBidState(s[2]), strTxState(s[3]), strTxState(s[4])) for s in active_swaps],
), 'UTF-8')
def page_wallets(self, url_split, post_string):
swap_client = self.server.swap_client
messages = []
form_data = self.checkForm(post_string, 'wallets', messages)
if form_data:
for c in Coins:
cid = str(int(c))
if bytes('newaddr_' + cid, 'utf-8') in form_data:
swap_client.cacheNewAddressForCoin(c)
if bytes('withdraw_' + cid, 'utf-8') in form_data:
value = form_data[bytes('amt_' + cid, 'utf-8')][0].decode('utf-8')
address = form_data[bytes('to_' + cid, 'utf-8')][0].decode('utf-8')
subfee = True if bytes('subfee_' + cid, 'utf-8') in form_data else False
txid = swap_client.withdrawCoin(c, value, address, subfee)
ticker = swap_client.getTicker(c)
messages.append('Withdrew {} {} to address {}<br/>In txid: {}'.format(value, ticker, address, txid))
wallets = swap_client.getWalletsInfo()
wallets_formatted = []
for k, w in wallets.items():
if 'error' in w:
wallets_formatted.append({
'cid': str(int(k)),
'error': w['error']
})
continue
fee_rate = swap_client.getFeeRateForCoin(k)
tx_vsize = swap_client.getContractSpendTxVSize(k)
est_fee = (fee_rate * tx_vsize) / 1000
wallets_formatted.append({
'name': w['name'],
'cid': str(int(k)),
'fee_rate': format8(fee_rate * COIN),
'est_fee': format8(est_fee * COIN),
'balance': w['balance'],
'blocks': w['blocks'],
'synced': w['synced'],
'deposit_address': w['deposit_address'],
})
if float(w['unconfirmed']) > 0.0:
wallets_formatted[-1]['unconfirmed'] = w['unconfirmed']
template = env.get_template('wallets.html')
return bytes(template.render(
title=self.server.title,
h2=self.server.title,
wallets=wallets_formatted,
form_id=os.urandom(8).hex(),
), 'UTF-8')
def page_newoffer(self, url_split, post_string):
swap_client = self.server.swap_client
messages = []
form_data = self.checkForm(post_string, 'newoffer', messages)
if form_data:
addr_from = form_data[b'addr_from'][0].decode('utf-8')
if addr_from == '-1':
addr_from = None
try:
coin_from = Coins(int(form_data[b'coin_from'][0]))
except Exception:
raise ValueError('Unknown Coin From')
try:
coin_to = Coins(int(form_data[b'coin_to'][0]))
except Exception:
raise ValueError('Unknown Coin To')
value_from = form_data[b'amt_from'][0].decode('utf-8')
value_to = form_data[b'amt_to'][0].decode('utf-8')
validateAmountString(value_from)
validateAmountString(value_to)
value_from = makeInt(value_from)
value_to = makeInt(value_to)
min_bid = int(value_from)
rate = int((value_to / value_from) * COIN)
autoaccept = True if b'autoaccept' in form_data else False
lock_seconds = int(form_data[b'lockhrs'][0]) * 60 * 60
# TODO: More accurate rate
# assert(value_to == (value_from * rate) // COIN)
if swap_client.coin_clients[coin_from]['use_csv'] and swap_client.coin_clients[coin_to]['use_csv']:
lock_type = SEQUENCE_LOCK_TIME
else:
lock_type = ABS_LOCK_TIME
offer_id = swap_client.postOffer(coin_from, coin_to, value_from, rate, min_bid, SwapTypes.SELLER_FIRST, lock_type=lock_type, lock_value=lock_seconds, auto_accept_bids=autoaccept, addr_send_from=addr_from)
messages.append('<a href="/offer/' + offer_id.hex() + '">Sent Offer ' + offer_id.hex() + '</a><br/>Rate: ' + format8(rate))
template = env.get_template('offer_new.html')
return bytes(template.render(
title=self.server.title,
h2=self.server.title,
messages=messages,
coins=listAvailableCoins(swap_client),
addrs=swap_client.listSmsgAddresses('offer'),
form_id=os.urandom(8).hex(),
), 'UTF-8')
def page_offer(self, url_split, post_string):
assert(len(url_split) > 2), 'Offer ID not specified'
try:
offer_id = bytes.fromhex(url_split[2])
assert(len(offer_id) == 28)
except Exception:
raise ValueError('Bad offer ID')
swap_client = self.server.swap_client
offer = swap_client.getOffer(offer_id)
assert(offer), 'Unknown offer ID'
messages = []
sent_bid_id = None
show_bid_form = None
form_data = self.checkForm(post_string, 'offer', messages)
if form_data:
if b'newbid' in form_data:
show_bid_form = True
else:
addr_from = form_data[b'addr_from'][0].decode('utf-8')
if addr_from == '-1':
addr_from = None
sent_bid_id = swap_client.postBid(offer_id, offer.amount_from).hex()
coin_from = Coins(offer.coin_from)
coin_to = Coins(offer.coin_to)
ticker_from = swap_client.getTicker(coin_from)
ticker_to = swap_client.getTicker(coin_to)
data = {
'tla_from': swap_client.getTicker(coin_from),
'tla_to': swap_client.getTicker(coin_to),
'state': strOfferState(offer.state),
'coin_from': getCoinName(coin_from),
'coin_to': getCoinName(coin_to),
'amt_from': format8(offer.amount_from),
'amt_to': format8((offer.amount_from * offer.rate) // COIN),
'rate': format8(offer.rate),
'lock_type': getLockName(offer.lock_type),
'lock_value': offer.lock_value,
'addr_from': offer.addr_from,
'created_at': offer.created_at,
'expired_at': offer.expire_at,
'sent': 'True' if offer.was_sent else 'False',
'show_bid_form': show_bid_form,
}
if offer.was_sent:
data['auto_accept'] = 'True' if offer.auto_accept_bids else 'False'
bids = swap_client.listBids(offer_id=offer_id)
template = env.get_template('offer.html')
return bytes(template.render(
title=self.server.title,
h2=self.server.title,
offer_id=offer_id.hex(),
sent_bid_id=sent_bid_id,
messages=messages,
data=data,
bids=[(b[1].hex(), format8(b[3]), strBidState(b[4]), strTxState(b[6]), strTxState(b[7])) for b in bids],
addrs=None if show_bid_form is None else swap_client.listSmsgAddresses('bid'),
form_id=os.urandom(8).hex(),
), 'UTF-8')
def page_offers(self, url_split, post_string, sent=False):
swap_client = self.server.swap_client
filters = {
'coin_from': -1,
'coin_to': -1,
'page_no': 1,
'limit': PAGE_LIMIT,
'sort_by': 'created_at',
'sort_dir': 'desc',
}
messages = []
form_data = self.checkForm(post_string, 'offers', messages)
if form_data and b'applyfilters' in form_data:
coin_from = int(form_data[b'coin_from'][0])
if coin_from > -1:
try:
filters['coin_from'] = Coins(coin_from)
except Exception:
raise ValueError('Unknown Coin From')
coin_to = int(form_data[b'coin_to'][0])
if coin_to > -1:
try:
filters['coin_to'] = Coins(coin_to)
except Exception:
raise ValueError('Unknown Coin From')
if b'sort_by' in form_data:
sort_by = form_data[b'sort_by'][0].decode('utf-8')
assert(sort_by in ['created_at', 'rate']), 'Invalid sort by'
filters['sort_by'] = sort_by
if b'sort_dir' in form_data:
sort_dir = form_data[b'sort_dir'][0].decode('utf-8')
assert(sort_dir in ['asc', 'desc']), 'Invalid sort dir'
filters['sort_dir'] = sort_dir
if form_data and b'pageback' in form_data:
filters['page_no'] = int(form_data[b'pageno'][0]) - 1
if filters['page_no'] < 1:
filters['page_no'] = 1
if form_data and b'pageforwards' in form_data:
filters['page_no'] = int(form_data[b'pageno'][0]) + 1
if filters['page_no'] > 1:
filters['offset'] = (filters['page_no'] - 1) * PAGE_LIMIT
offers = swap_client.listOffers(sent, filters)
template = env.get_template('offers.html')
return bytes(template.render(
title=self.server.title,
h2=self.server.title,
page_type='Sent' if sent else 'Received',
coins=listAvailableCoins(swap_client),
messages=messages,
filters=filters,
offers=[(time.strftime('%Y-%m-%d %H:%M', time.localtime(o.created_at)),
o.offer_id.hex(), getCoinName(Coins(o.coin_from)), getCoinName(Coins(o.coin_to)), format8(o.amount_from), format8((o.amount_from * o.rate) // COIN), format8(o.rate)) for o in offers],
form_id=os.urandom(8).hex(),
), 'UTF-8')
def page_advance(self, url_split, post_string):
assert(len(url_split) > 2), 'Bid ID not specified'
try:
bid_id = bytes.fromhex(url_split[2])
assert(len(bid_id) == 28)
except Exception:
raise ValueError('Bad bid ID')
swap_client = self.server.swap_client
template = env.get_template('advance.html')
return bytes(template.render(
title=self.server.title,
h2=self.server.title,
bid_id=bid_id.hex(),
), 'UTF-8')
def page_bid(self, url_split, post_string):
assert(len(url_split) > 2), 'Bid ID not specified'
try:
bid_id = bytes.fromhex(url_split[2])
assert(len(bid_id) == 28)
except Exception:
raise ValueError('Bad bid ID')
swap_client = self.server.swap_client
messages = []
show_txns = False
form_data = self.checkForm(post_string, 'bid', messages)
if form_data:
if b'abandon_bid' in form_data:
try:
swap_client.abandonBid(bid_id)
messages.append('Bid abandoned')
except Exception as ex:
messages.append('Error ' + str(ex))
if b'accept_bid' in form_data:
try:
swap_client.acceptBid(bid_id)
messages.append('Bid accepted')
except Exception as ex:
messages.append('Error ' + str(ex))
if b'show_txns' in form_data:
show_txns = True
bid, offer = swap_client.getBidAndOffer(bid_id)
assert(bid), 'Unknown bid ID'
coin_from = Coins(offer.coin_from)
coin_to = Coins(offer.coin_to)
ticker_from = swap_client.getTicker(coin_from)
ticker_to = swap_client.getTicker(coin_to)
if bid.state == BidStates.BID_SENT:
state_description = 'Waiting for seller to accept.'
elif bid.state == BidStates.BID_RECEIVED:
state_description = 'Waiting for seller to accept.'
elif bid.state == BidStates.BID_ACCEPTED:
if not bid.initiate_tx:
state_description = 'Waiting for seller to send initiate tx.'
else:
state_description = 'Waiting for initiate tx to confirm.'
elif bid.state == BidStates.SWAP_INITIATED:
state_description = 'Waiting for participate txn to be confirmed in {} chain'.format(ticker_to)
elif bid.state == BidStates.SWAP_PARTICIPATING:
state_description = 'Waiting for initiate txn to be spent in {} chain'.format(ticker_from)
elif bid.state == BidStates.SWAP_COMPLETED:
state_description = 'Swap completed'
if bid.getITxState() == TxStates.TX_REDEEMED and bid.getPTxState() == TxStates.TX_REDEEMED:
state_description += ' successfully'
else:
state_description += ', ITX ' + strTxState(bid.getITxState() + ', PTX ' + strTxState(bid.getPTxState()))
elif bid.state == BidStates.SWAP_TIMEDOUT:
state_description = 'Timed out waiting for initiate txn'
elif bid.state == BidStates.BID_ABANDONED:
state_description = 'Bid abandoned'
elif bid.state == BidStates.BID_ERROR:
state_description = bid.state_note
else:
state_description = ''
data = {
'amt_from': format8(bid.amount),
'amt_to': format8((bid.amount * offer.rate) // COIN),
'ticker_from': ticker_from,
'ticker_to': ticker_to,
'bid_state': strBidState(bid.state),
'state_description': state_description,
'itx_state': strTxState(bid.getITxState()),
'ptx_state': strTxState(bid.getPTxState()),
'offer_id': bid.offer_id.hex(),
'addr_from': bid.bid_addr,
'addr_fund_proof': bid.proof_address,
'created_at': time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(bid.created_at)),
'expired_at': time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(bid.expire_at)),
'was_sent': 'True' if bid.was_sent else 'False',
'was_received': 'True' if bid.was_received else 'False',
'initiate_tx': getTxIdHex(bid, TxTypes.ITX, ' ' + ticker_from),
'initiate_conf': 'None' if (not bid.initiate_tx or not bid.initiate_tx.conf) else bid.initiate_tx.conf,
'participate_tx': getTxIdHex(bid, TxTypes.PTX, ' ' + ticker_to),
'participate_conf': 'None' if (not bid.participate_tx or not bid.participate_tx.conf) else bid.participate_tx.conf,
'show_txns': show_txns,
}
if show_txns:
data['initiate_tx_refund'] = 'None' if not bid.initiate_txn_refund else bid.initiate_txn_refund.hex()
data['participate_tx_refund'] = 'None' if not bid.participate_txn_refund else bid.participate_txn_refund.hex()
data['initiate_tx_spend'] = getTxSpendHex(bid, TxTypes.ITX)
data['participate_tx_spend'] = getTxSpendHex(bid, TxTypes.PTX)
old_states = []
num_states = len(bid.states) // 12
for i in range(num_states):
up = struct.unpack_from('<iq', bid.states[i * 12:(i + 1) * 12])
old_states.append((up[1], 'Bid ' + strBidState(up[0])))
if bid.initiate_tx and bid.initiate_tx.states is not None:
num_states = len(bid.initiate_tx.states) // 12
for i in range(num_states):
up = struct.unpack_from('<iq', bid.initiate_tx.states[i * 12:(i + 1) * 12])
old_states.append((up[1], 'ITX ' + strTxState(up[0])))
if bid.participate_tx and bid.participate_tx.states is not None:
num_states = len(bid.participate_tx.states) // 12
for i in range(num_states):
up = struct.unpack_from('<iq', bid.participate_tx.states[i * 12:(i + 1) * 12])
old_states.append((up[1], 'PTX ' + strTxState(up[0])))
if len(old_states) > 0:
old_states.sort(key=lambda x: x[0])
template = env.get_template('bid.html')
return bytes(template.render(
title=self.server.title,
h2=self.server.title,
bid_id=bid_id.hex(),
messages=messages,
data=data,
form_id=os.urandom(8).hex(),
old_states=old_states,
), 'UTF-8')
def page_bids(self, url_split, post_string, sent=False):
swap_client = self.server.swap_client
bids = swap_client.listBids(sent=sent)
template = env.get_template('bids.html')
return bytes(template.render(
title=self.server.title,
h2=self.server.title,
page_type='Sent' if sent else 'Received',
bids=[(time.strftime('%Y-%m-%d %H:%M', time.localtime(b[0])),
b[1].hex(), b[2].hex(), strBidState(b[4]), strTxState(b[6]), strTxState(b[7])) for b in bids],
), 'UTF-8')
def page_watched(self, url_split, post_string):
swap_client = self.server.swap_client
watched_outputs, last_scanned = swap_client.listWatchedOutputs()
template = env.get_template('watched.html')
return bytes(template.render(
title=self.server.title,
refresh=30,
h2=self.server.title,
last_scanned=[(getCoinName(ls[0]), ls[1]) for ls in last_scanned],
watched_outputs=[(wo[1].hex(), getCoinName(wo[0]), wo[2], wo[3], int(wo[4])) for wo in watched_outputs],
), 'UTF-8')
def page_index(self, url_split):
swap_client = self.server.swap_client
summary = swap_client.getSummary()
template = env.get_template('index.html')
return bytes(template.render(
title=self.server.title,
refresh=30,
h2=self.server.title,
version=__version__,
summary=summary
), 'UTF-8')
def putHeaders(self, status_code, content_type):
self.send_response(status_code)
if self.server.allow_cors:
self.send_header('Access-Control-Allow-Origin', '*')
self.send_header('Content-type', content_type)
self.end_headers()
def handle_http(self, status_code, path, post_string=''):
url_split = self.path.split('/')
if len(url_split) > 1 and url_split[1] == 'json':
try:
self.putHeaders(status_code, 'text/plain')
func = self.js_index
if len(url_split) > 2:
func = {'wallets': self.js_wallets,
'offers': self.js_offers,
'sentoffers': self.js_sentoffers,
'bids': self.js_bids,
'sentbids': self.js_sentbids,
}.get(url_split[2], self.js_index)
return func(url_split)
except Exception as ex:
return self.js_error(str(ex))
try:
self.putHeaders(status_code, 'text/html')
if len(url_split) > 1:
if url_split[1] == 'active':
return self.page_active(url_split, post_string)
if url_split[1] == 'wallets':
return self.page_wallets(url_split, post_string)
if url_split[1] == 'rpc':
return self.page_rpc(url_split, post_string)
if url_split[1] == 'offer':
return self.page_offer(url_split, post_string)
if url_split[1] == 'offers':
return self.page_offers(url_split, post_string)
if url_split[1] == 'newoffer':
return self.page_newoffer(url_split, post_string)
if url_split[1] == 'sentoffers':
return self.page_offers(url_split, post_string, sent=True)
if url_split[1] == 'advance':
return self.page_advance(url_split, post_string)
if url_split[1] == 'bid':
return self.page_bid(url_split, post_string)
if url_split[1] == 'bids':
return self.page_bids(url_split, post_string)
if url_split[1] == 'sentbids':
return self.page_bids(url_split, post_string, sent=True)
if url_split[1] == 'watched':
return self.page_watched(url_split, post_string)
return self.page_index(url_split)
except Exception as ex:
traceback.print_exc() # TODO: Remove
return self.page_error(str(ex))
def do_GET(self):
response = self.handle_http(200, self.path)
self.wfile.write(response)
def do_POST(self):
post_string = self.rfile.read(int(self.headers['Content-Length']))
response = self.handle_http(200, self.path, post_string)
self.wfile.write(response)
def do_HEAD(self):
self.putHeaders(200, 'text/html')
def do_OPTIONS(self):
self.send_response(200, 'ok')
if self.server.allow_cors:
self.send_header('Access-Control-Allow-Origin', '*')
self.send_header('Access-Control-Allow-Headers', '*')
self.end_headers()
class HttpThread(threading.Thread, HTTPServer):
def __init__(self, fp, host_name, port_no, allow_cors, swap_client):
threading.Thread.__init__(self)
self.stop_event = threading.Event()
self.fp = fp
self.host_name = host_name
self.port_no = port_no
self.allow_cors = allow_cors
self.swap_client = swap_client
self.title = 'Simple Atomic Swap Demo, ' + self.swap_client.chain
self.last_form_id = dict()
self.timeout = 60
HTTPServer.__init__(self, (self.host_name, self.port_no), HttpHandler)
def stop(self):
self.stop_event.set()
# Send fake request
conn = http.client.HTTPConnection(self.host_name, self.port_no)
conn.connect()
conn.request('GET', '/none')
response = conn.getresponse()
data = response.read()
conn.close()
def stopped(self):
return self.stop_event.is_set()
def serve_forever(self):
while not self.stopped():
self.handle_request()
self.socket.close()
def run(self):
self.serve_forever()