137 lines
5.0 KiB
Python
137 lines
5.0 KiB
Python
#!/usr/bin/env python
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#
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# Electrum - lightweight Bitcoin client
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# Copyright (C) 2025 The Electrum Developers
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#
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# Permission is hereby granted, free of charge, to any person
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# obtaining a copy of this software and associated documentation files
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# (the "Software"), to deal in the Software without restriction,
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# including without limitation the rights to use, copy, modify, merge,
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# publish, distribute, sublicense, and/or sell copies of the Software,
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# and to permit persons to whom the Software is furnished to do so,
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# subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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import os
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import asyncio
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from collections import defaultdict
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from typing import TYPE_CHECKING
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from aiohttp import web
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from electrum.util import log_exceptions, ignore_exceptions
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from electrum.logging import Logger
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from electrum.util import EventListener
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if TYPE_CHECKING:
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from electrum.simple_config import SimpleConfig
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from electrum.wallet import Abstract_Wallet
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class HttpSwapServer(Logger, EventListener):
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"""
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public API:
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- getpairs
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- createswap
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"""
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WWW_DIR = os.path.join(os.path.dirname(__file__), 'www')
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def __init__(self, config: 'SimpleConfig', wallet: 'Abstract_Wallet'):
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Logger.__init__(self)
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self.config = config
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self.wallet = wallet
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self.sm = self.wallet.lnworker.swap_manager
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self.port = self.config.SWAPSERVER_PORT
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self.register_callbacks() # eventlistener
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self.pending = defaultdict(asyncio.Event)
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self.pending_msg = {}
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@ignore_exceptions
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@log_exceptions
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async def run(self):
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while self.wallet.has_password() and self.wallet.get_unlocked_password() is None:
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self.logger.info("This wallet is password-protected. Please unlock it to start the swapserver plugin")
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await asyncio.sleep(10)
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app = web.Application()
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app.add_routes([web.get('/getpairs', self.get_pairs)])
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app.add_routes([web.post('/createswap', self.create_swap)])
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app.add_routes([web.post('/createnormalswap', self.create_normal_swap)])
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app.add_routes([web.post('/addswapinvoice', self.add_swap_invoice)])
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runner = web.AppRunner(app)
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await runner.setup()
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site = web.TCPSite(runner, host='localhost', port=self.port)
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await site.start()
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self.logger.info(f"running and listening on port {self.port}")
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async def get_pairs(self, r):
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sm = self.sm
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sm.server_update_pairs()
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pairs = {
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"info": [],
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"warnings": [],
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"htlcFirst": True,
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"pairs": {
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"BTC/BTC": {
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"rate": 1,
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"limits": {
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"maximal": min(sm._max_forward, sm._max_reverse), # legacy
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"max_forward_amount": sm._max_forward, # new version, uses 2 separate limits
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"max_reverse_amount": sm._max_reverse,
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"minimal": sm._min_amount,
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},
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"fees": {
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"percentage": sm.percentage,
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"minerFees": {
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"baseAsset": {
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"normal": sm.mining_fee,
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"reverse": {
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"claim": sm.mining_fee,
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"lockup": sm.mining_fee
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},
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"mining_fee": sm.mining_fee
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},
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"quoteAsset": {
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"normal": sm.mining_fee,
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"reverse": {
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"claim": sm.mining_fee,
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"lockup": sm.mining_fee
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},
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"mining_fee": sm.mining_fee
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}
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}
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}
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}
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}
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}
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return web.json_response(pairs)
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async def add_swap_invoice(self, r):
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request = await r.json()
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self.sm.server_add_swap_invoice(request)
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return web.json_response({})
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async def create_normal_swap(self, r):
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request = await r.json()
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response = self.sm.server_create_normal_swap(request)
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return web.json_response(response)
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async def create_swap(self, r):
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request = await r.json()
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response = self.sm.server_create_swap(request)
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return web.json_response(response)
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