# -*- coding: utf-8 -*- # Copyright (c) 2019-2022 tecnovert # Distributed under the MIT software license, see the accompanying # file LICENSE or http://www.opensource.org/licenses/mit-license.php. import os import json 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 ( dumpj, ensure, toBool, format_timestamp, ) from .chainparams import ( Coins, chainparams, ) from .basicswap_util import ( BidStates, SwapTypes, DebugTypes, strBidState, strTxState, strAddressType, ) from .js_server import ( js_error, js_wallets, js_offers, js_sentoffers, js_bids, js_sentbids, js_network, js_revokeoffer, js_smsgaddresses, js_rates, js_rate, js_index, ) from .ui.util import ( PAGE_LIMIT, describeBid, getCoinName, listBidStates, get_data_entry, have_data_entry, listOldBidStates, get_data_entry_or, listAvailableCoins, set_pagination_filters, ) from .ui.page_tor import page_tor from .ui.page_offers import page_offers, page_offer, page_newoffer from .ui.page_wallet import page_wallets, page_wallet from .ui.page_automation import ( page_automation_strategies, page_automation_strategy, page_automation_strategy_new, ) env = Environment(loader=PackageLoader('basicswap', 'templates')) env.filters['formatts'] = format_timestamp def validateTextInput(text, name, messages, max_length=None): if max_length is not None and len(text) > max_length: messages.append(f'Error: {name} is too long') return False if len(text) > 0 and all(c.isalnum() or c.isspace() for c in text) is False: messages.append(f'Error: {name} must consist of only letters and digits') return False return True def extractDomain(url): return url.split('://', 1)[1].split('/', 1)[0] def listAvailableExplorers(swap_client): explorers = [] for c in Coins: if c not in chainparams: continue for i, e in enumerate(swap_client.coin_clients[c]['explorers']): explorers.append(('{}_{}'.format(int(c), i), swap_client.coin_clients[c]['name'].capitalize() + ' - ' + extractDomain(e.base_url))) return explorers def listExplorerActions(swap_client): actions = [('height', 'Chain Height'), ('block', 'Get Block'), ('tx', 'Get Transaction'), ('balance', 'Address Balance'), ('unspent', 'List Unspent')] return actions def html_content_start(title, h2=None, refresh=None): content = '\n' \ + '' \ + ('' if not refresh else ''.format(refresh)) \ + '' + title + '\n' \ + '' if h2 is not None: content += '

' + h2 + '

' return content class HttpHandler(BaseHTTPRequestHandler): def page_info(self, info_str): content = html_content_start('BasicSwap Info') \ + '

Info: ' + info_str + '

' \ + '

home

' return bytes(content, 'UTF-8') def page_error(self, error_str): content = html_content_start('BasicSwap Error') \ + '

Error: ' + error_str + '

' \ + '

home

' 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 page_explorers(self, url_split, post_string): swap_client = self.server.swap_client result = None explorer = -1 action = -1 messages = [] form_data = self.checkForm(post_string, 'explorers', messages) if form_data: explorer = form_data[b'explorer'][0].decode('utf-8') action = form_data[b'action'][0].decode('utf-8') args = '' if b'args' not in form_data else form_data[b'args'][0].decode('utf-8') try: c, e = explorer.split('_') exp = swap_client.coin_clients[Coins(int(c))]['explorers'][int(e)] if action == 'height': result = str(exp.getChainHeight()) elif action == 'block': result = dumpj(exp.getBlock(args)) elif action == 'tx': result = dumpj(exp.getTransaction(args)) elif action == 'balance': result = dumpj(exp.getBalance(args)) elif action == 'unspent': result = dumpj(exp.lookupUnspentByAddress(args)) else: result = 'Unknown action' except Exception as ex: result = str(ex) template = env.get_template('explorers.html') return bytes(template.render( title=self.server.title, h2=self.server.title, explorers=listAvailableExplorers(swap_client), explorer=explorer, actions=listExplorerActions(swap_client), action=action, result=result, form_id=os.urandom(8).hex(), ), 'UTF-8') def page_rpc(self, url_split, post_string): swap_client = self.server.swap_client result = None coin_type = -1 coin_id = -1 messages = [] form_data = self.checkForm(post_string, 'rpc', messages) if form_data: try: coin_id = int(form_data[b'coin_type'][0]) if coin_id in (-2, -3, -4): coin_type = Coins(Coins.XMR) else: coin_type = Coins(coin_id) except Exception: raise ValueError('Unknown Coin Type') cmd = form_data[b'cmd'][0].decode('utf-8') try: if coin_type == Coins.XMR: ci = swap_client.ci(coin_type) arr = cmd.split(None, 1) method = arr[0] params = json.loads(arr[1]) if len(arr) > 1 else [] if coin_id == -4: rv = ci.rpc_wallet_cb(method, params) elif coin_id == -3: rv = ci.rpc_cb(method, params) elif coin_id == -2: if params == []: params = None rv = ci.rpc_cb2(method, params) else: raise ValueError('Unknown XMR RPC variant') result = json.dumps(rv, indent=4) else: result = cmd + '\n' + swap_client.callcoincli(coin_type, cmd) except Exception as ex: result = str(ex) if self.server.swap_client.debug is True: self.server.swap_client.log.error(traceback.format_exc()) template = env.get_template('rpc.html') coins = listAvailableCoins(swap_client, with_variants=False) coins = [c for c in coins if c[0] != Coins.XMR] coins.append((-2, 'Monero')) coins.append((-3, 'Monero JSON')) coins.append((-4, 'Monero Wallet')) return bytes(template.render( title=self.server.title, h2=self.server.title, coins=coins, coin_type=coin_id, result=result, messages=messages, form_id=os.urandom(8).hex(), ), 'UTF-8') def page_debug(self, url_split, post_string): swap_client = self.server.swap_client result = None messages = [] form_data = self.checkForm(post_string, 'wallets', messages) if form_data: if have_data_entry(form_data, 'reinit_xmr'): try: swap_client.initialiseWallet(Coins.XMR) messages.append('Done.') except Exception as a: messages.append('Failed.') template = env.get_template('debug.html') return bytes(template.render( title=self.server.title, h2=self.server.title, messages=messages, 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_settings(self, url_split, post_string): swap_client = self.server.swap_client messages = [] form_data = self.checkForm(post_string, 'settings', messages) if form_data: for name, c in swap_client.settings['chainclients'].items(): if have_data_entry(form_data, 'apply_' + name): data = {'lookups': get_data_entry(form_data, 'lookups_' + name)} if name == 'monero': data['fee_priority'] = int(get_data_entry(form_data, 'fee_priority_' + name)) data['manage_daemon'] = True if get_data_entry(form_data, 'managedaemon_' + name) == 'true' else False data['rpchost'] = get_data_entry(form_data, 'rpchost_' + name) data['rpcport'] = int(get_data_entry(form_data, 'rpcport_' + name)) data['remotedaemonurls'] = get_data_entry(form_data, 'remotedaemonurls_' + name) data['automatically_select_daemon'] = True if get_data_entry(form_data, 'autosetdaemon_' + name) == 'true' else False else: data['conf_target'] = int(get_data_entry(form_data, 'conf_target_' + name)) if name == 'particl': data['anon_tx_ring_size'] = int(get_data_entry(form_data, 'rct_ring_size_' + name)) settings_changed, suggest_reboot = swap_client.editSettings(name, data) if settings_changed is True: messages.append('Settings applied.') if suggest_reboot is True: messages.append('Please restart BasicSwap.') elif have_data_entry(form_data, 'enable_' + name): swap_client.enableCoin(name) messages.append(name.capitalize() + ' enabled, shutting down.') swap_client.stopRunning() elif have_data_entry(form_data, 'disable_' + name): swap_client.disableCoin(name) messages.append(name.capitalize() + ' disabled, shutting down.') swap_client.stopRunning() chains_formatted = [] sorted_names = sorted(swap_client.settings['chainclients'].keys()) for name in sorted_names: c = swap_client.settings['chainclients'][name] chains_formatted.append({ 'name': name, 'lookups': c.get('chain_lookups', 'local'), 'manage_daemon': c.get('manage_daemon', 'Unknown'), 'connection_type': c.get('connection_type', 'Unknown'), }) if name == 'monero': chains_formatted[-1]['fee_priority'] = c.get('fee_priority', 0) chains_formatted[-1]['manage_wallet_daemon'] = c.get('manage_wallet_daemon', 'Unknown') chains_formatted[-1]['rpchost'] = c.get('rpchost', 'localhost') chains_formatted[-1]['rpcport'] = int(c.get('rpcport', 18081)) chains_formatted[-1]['remotedaemonurls'] = '\n'.join(c.get('remote_daemon_urls', [])) chains_formatted[-1]['autosetdaemon'] = c.get('automatically_select_daemon', False) else: chains_formatted[-1]['conf_target'] = c.get('conf_target', 2) if name == 'particl': chains_formatted[-1]['anon_tx_ring_size'] = c.get('anon_tx_ring_size', 12) else: if c.get('connection_type', 'Unknown') == 'none': if 'connection_type_prev' in c: chains_formatted[-1]['can_reenable'] = True else: chains_formatted[-1]['can_disable'] = True template = env.get_template('settings.html') return bytes(template.render( title=self.server.title, h2=self.server.title, messages=messages, chains=chains_formatted, form_id=os.urandom(8).hex(), ), 'UTF-8') def page_bid(self, url_split, post_string): ensure(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 show_offerer_seq_diagram = False show_bidder_seq_diagram = False show_lock_transfers = False edit_bid = False view_tx_ind = None 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('Abandon failed ' + str(ex)) elif b'accept_bid' in form_data: try: swap_client.acceptBid(bid_id) messages.append('Bid accepted') except Exception as ex: messages.append('Accept failed ' + str(ex)) elif b'show_txns' in form_data: show_txns = True elif b'show_offerer_seq_diagram' in form_data: show_offerer_seq_diagram = True elif b'show_bidder_seq_diagram' in form_data: show_bidder_seq_diagram = True elif b'edit_bid' in form_data: edit_bid = True elif b'edit_bid_submit' in form_data: data = { 'bid_state': int(form_data[b'new_state'][0]), 'debug_ind': int(get_data_entry_or(form_data, 'debugind', -1)), 'kbs_other': get_data_entry_or(form_data, 'kbs_other', None), } try: swap_client.manualBidUpdate(bid_id, data) messages.append('Bid edited') except Exception as ex: messages.append('Edit failed ' + str(ex)) elif b'view_tx_submit' in form_data: show_txns = True view_tx_ind = form_data[b'view_tx'][0].decode('utf-8') elif b'view_lock_transfers' in form_data: show_txns = True show_lock_transfers = True bid, xmr_swap, offer, xmr_offer, events = swap_client.getXmrBidAndOffer(bid_id) ensure(bid, 'Unknown bid ID') data = describeBid(swap_client, bid, xmr_swap, offer, xmr_offer, events, edit_bid, show_txns, view_tx_ind, show_lock_transfers=show_lock_transfers) if bid.debug_ind is not None and bid.debug_ind > 0: messages.append('Debug flag set: {}, {}'.format(bid.debug_ind, DebugTypes(bid.debug_ind).name)) data['show_bidder_seq_diagram'] = show_bidder_seq_diagram data['show_offerer_seq_diagram'] = show_offerer_seq_diagram old_states = listOldBidStates(bid) if len(data['addr_from_label']) > 0: data['addr_from_label'] = '(' + data['addr_from_label'] + ')' template = env.get_template('bid_xmr.html') if offer.swap_type == SwapTypes.XMR_SWAP else 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, edit_bid=edit_bid, form_id=os.urandom(8).hex(), old_states=old_states, ), 'UTF-8') def page_bids(self, url_split, post_string, sent=False, available=False): swap_client = self.server.swap_client filters = { 'page_no': 1, 'bid_state_ind': -1, 'with_expired': True, 'limit': PAGE_LIMIT, 'sort_by': 'created_at', 'sort_dir': 'desc', } if available: filters['bid_state_ind'] = BidStates.BID_RECEIVED filters['with_expired'] = False messages = [] form_data = self.checkForm(post_string, 'bids', messages) if form_data and have_data_entry(form_data, 'applyfilters'): if have_data_entry(form_data, 'sort_by'): sort_by = get_data_entry(form_data, 'sort_by') ensure(sort_by in ['created_at', ], 'Invalid sort by') filters['sort_by'] = sort_by if have_data_entry(form_data, 'sort_dir'): sort_dir = get_data_entry(form_data, 'sort_dir') ensure(sort_dir in ['asc', 'desc'], 'Invalid sort dir') filters['sort_dir'] = sort_dir if have_data_entry(form_data, 'state'): state_ind = get_data_entry(form_data, 'state') if state_ind != -1: try: state = BidStates(state_ind) except Exception: raise ValueError('Invalid state') filters['bid_state_ind'] = state_ind if have_data_entry(form_data, 'with_expired'): with_expired = toBool(get_data_entry(form_data, 'with_expired')) filters['with_expired'] = with_expired set_pagination_filters(form_data, filters) bids = swap_client.listBids(sent=sent, filters=filters) page_data = { 'bid_states': listBidStates() } 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', messages=messages, filters=filters, data=page_data, bids=[(format_timestamp(b[0]), b[2].hex(), b[3].hex(), strBidState(b[5]), strTxState(b[7]), strTxState(b[8]), b[11]) for b in bids], form_id=os.urandom(8).hex(), ), '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_smsgaddresses(self, url_split, post_string): swap_client = self.server.swap_client page_data = {} messages = [] smsgaddresses = [] listaddresses = True form_data = self.checkForm(post_string, 'smsgaddresses', messages) if form_data: edit_address_id = None for key in form_data: if key.startswith(b'editaddr_'): edit_address_id = int(key.split(b'_')[1]) break if edit_address_id is not None: listaddresses = False page_data['edit_address'] = edit_address_id page_data['addr_data'] = swap_client.listAllSMSGAddresses(addr_id=edit_address_id)[0] elif b'saveaddr' in form_data: edit_address_id = int(form_data[b'edit_address_id'][0].decode('utf-8')) edit_addr = form_data[b'edit_address'][0].decode('utf-8') active_ind = int(form_data[b'active_ind'][0].decode('utf-8')) ensure(active_ind in (0, 1), 'Invalid sort by') addressnote = '' if b'addressnote' not in form_data else form_data[b'addressnote'][0].decode('utf-8') if not validateTextInput(addressnote, 'Address note', messages, max_length=30): listaddresses = False page_data['edit_address'] = edit_address_id else: swap_client.editSMSGAddress(edit_addr, active_ind=active_ind, addressnote=addressnote) messages.append(f'Edited address {edit_addr}') elif b'shownewaddr' in form_data: listaddresses = False page_data['new_address'] = True elif b'showaddaddr' in form_data: listaddresses = False page_data['new_send_address'] = True elif b'createnewaddr' in form_data: addressnote = '' if b'addressnote' not in form_data else form_data[b'addressnote'][0].decode('utf-8') if not validateTextInput(addressnote, 'Address note', messages, max_length=30): listaddresses = False page_data['new_address'] = True else: new_addr, pubkey = swap_client.newSMSGAddress(addressnote=addressnote) messages.append(f'Created address {new_addr}, pubkey {pubkey}') elif b'createnewsendaddr' in form_data: pubkey_hex = form_data[b'addresspubkey'][0].decode('utf-8') addressnote = '' if b'addressnote' not in form_data else form_data[b'addressnote'][0].decode('utf-8') if not validateTextInput(addressnote, 'Address note', messages, max_length=30) or \ not validateTextInput(pubkey_hex, 'Pubkey', messages, max_length=66): listaddresses = False page_data['new_send_address'] = True else: new_addr = swap_client.addSMSGAddress(pubkey_hex, addressnote=addressnote) messages.append(f'Added address {new_addr}') if listaddresses is True: smsgaddresses = swap_client.listAllSMSGAddresses() network_addr = swap_client.network_addr for addr in smsgaddresses: addr['type'] = strAddressType(addr['type']) template = env.get_template('smsgaddresses.html') return bytes(template.render( title=self.server.title, h2=self.server.title, messages=messages, data=page_data, form_id=os.urandom(8).hex(), smsgaddresses=smsgaddresses, network_addr=network_addr, ), 'UTF-8') def page_identity(self, url_split, post_string): ensure(len(url_split) > 2, 'Address not specified') identity_address = url_split[2] swap_client = self.server.swap_client page_data = {'identity_address': identity_address} messages = [] form_data = self.checkForm(post_string, 'identity', messages) if form_data: if have_data_entry(form_data, 'edit'): page_data['show_edit_form'] = True if have_data_entry(form_data, 'apply'): new_label = get_data_entry(form_data, 'label') try: swap_client.updateIdentity(identity_address, new_label) messages.append('Updated') except Exception as e: messages.append('Error') try: identity = swap_client.getIdentity(identity_address) if identity is None: raise ValueError('Unknown address') page_data['label'] = identity.label page_data['num_sent_bids_successful'] = identity.num_sent_bids_successful page_data['num_recv_bids_successful'] = identity.num_recv_bids_successful page_data['num_sent_bids_rejected'] = identity.num_sent_bids_rejected page_data['num_recv_bids_rejected'] = identity.num_recv_bids_rejected page_data['num_sent_bids_failed'] = identity.num_sent_bids_failed page_data['num_recv_bids_failed'] = identity.num_recv_bids_failed except Exception as e: messages.append(e) template = env.get_template('identity.html') return bytes(template.render( title=self.server.title, h2=self.server.title, messages=messages, data=page_data, form_id=os.urandom(8).hex(), ), 'UTF-8') def page_shutdown(self, url_split, post_string): swap_client = self.server.swap_client if len(url_split) > 2: token = url_split[2] expect_token = self.server.session_tokens.get('shutdown', None) if token != expect_token: return self.page_info('Unexpected token, still running.') swap_client.stopRunning() return self.page_info('Shutting down') def page_index(self, url_split): swap_client = self.server.swap_client summary = swap_client.getSummary() shutdown_token = os.urandom(8).hex() self.server.session_tokens['shutdown'] = shutdown_token template = env.get_template('index.html') return bytes(template.render( title=self.server.title, refresh=30, h2=self.server.title, version=__version__, summary=summary, use_tor_proxy=swap_client.use_tor_proxy, shutdown_token=shutdown_token ), 'UTF-8') def page_404(self, url_split): template = env.get_template('404.html') return bytes(template.render( title=self.server.title, ), '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='', is_json=False): url_split = self.path.split('/') if len(url_split) > 1 and url_split[1] == 'json': try: self.putHeaders(status_code, 'text/plain') func = js_index if len(url_split) > 2: func = {'wallets': js_wallets, 'offers': js_offers, 'sentoffers': js_sentoffers, 'bids': js_bids, 'sentbids': js_sentbids, 'network': js_network, 'revokeoffer': js_revokeoffer, 'smsgaddresses': js_smsgaddresses, 'rate': js_rate, 'rates': js_rates, }.get(url_split[2], js_index) return func(self, url_split, post_string, is_json) except Exception as ex: if self.server.swap_client.debug is True: self.server.swap_client.log.error(traceback.format_exc()) return js_error(self, str(ex)) if len(url_split) > 1 and url_split[1] == 'static': try: static_path = os.path.join(os.path.dirname(__file__), 'static') if url_split[2] == 'favicon-32.png': self.putHeaders(status_code, 'image/png') with open(os.path.join(static_path, 'favicon-32.png'), 'rb') as fp: return fp.read() elif url_split[2] == 'style.css': self.putHeaders(status_code, 'text/css') with open(os.path.join(static_path, 'style.css'), 'rb') as fp: return fp.read() elif len(url_split) > 3 and url_split[2] == 'sequence_diagrams': self.putHeaders(status_code, 'image/svg+xml') with open(os.path.join(static_path, 'sequence_diagrams', url_split[3]), 'rb') as fp: return fp.read() else: self.putHeaders(status_code, 'text/html') return self.page_404(url_split) except Exception as ex: self.putHeaders(status_code, 'text/html') if self.server.swap_client.debug is True: self.server.swap_client.log.error(traceback.format_exc()) return self.page_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 page_wallets(self, url_split, post_string) if url_split[1] == 'wallet': return page_wallet(self, url_split, post_string) if url_split[1] == 'settings': return self.page_settings(url_split, post_string) if url_split[1] == 'rpc': return self.page_rpc(url_split, post_string) if url_split[1] == 'debug': return self.page_debug(url_split, post_string) if url_split[1] == 'explorers': return self.page_explorers(url_split, post_string) if url_split[1] == 'offer': return page_offer(self, url_split, post_string) if url_split[1] == 'offers': return page_offers(self, url_split, post_string) if url_split[1] == 'newoffer': return page_newoffer(self, url_split, post_string) if url_split[1] == 'sentoffers': return page_offers(self, url_split, post_string, sent=True) 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] == 'availablebids': return self.page_bids(url_split, post_string, available=True) if url_split[1] == 'watched': return self.page_watched(url_split, post_string) if url_split[1] == 'smsgaddresses': return self.page_smsgaddresses(url_split, post_string) if url_split[1] == 'identity': return self.page_identity(url_split, post_string) if url_split[1] == 'tor': return page_tor(self, url_split, post_string) if url_split[1] == 'automation': return page_automation_strategies(self, url_split, post_string) if url_split[1] == 'automationstrategy': return page_automation_strategy(self, url_split, post_string) if url_split[1] == 'newautomationstrategy': return page_automation_strategy_new(self, url_split, post_string) if url_split[1] == 'shutdown': return self.page_shutdown(url_split, post_string) return self.page_index(url_split) except Exception as ex: if self.server.swap_client.debug is True: self.server.swap_client.log.error(traceback.format_exc()) 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.get('Content-Length'))) is_json = True if 'json' in self.headers.get('Content-Type', '') else False response = self.handle_http(200, self.path, post_string, is_json) 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 = 'BasicSwap, ' + self.swap_client.chain self.last_form_id = dict() self.session_tokens = dict() self.env = env 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()