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40 lines
1.4 KiB
40 lines
1.4 KiB
7 years ago
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from .util import PrintError
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from .lnbase import Outpoint, funding_output_script
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from .bitcoin import redeem_script_to_address
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class LNWatcher(PrintError):
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def __init__(self, network, channel_state):
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self.network = network
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self.channel_state = channel_state
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self.channels ={}
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def parse_response(self, response):
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if response.get('error'):
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self.print_error("response error:", response)
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return None, None
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return response['params'], response['result']
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def watch_channel(self, chan):
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script = funding_output_script(chan.local_config, chan.remote_config)
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funding_address = redeem_script_to_address('p2wsh', script)
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self.channels[funding_address] = chan
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self.network.subscribe_to_addresses([funding_address], self.on_address_status)
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def on_address_status(self, response):
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params, result = self.parse_response(response)
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if not params:
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return
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addr = params[0]
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self.network.request_address_utxos(addr, self.on_utxos)
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def on_utxos(self, response):
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params, result = self.parse_response(response)
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if not params:
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return
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addr = params[0]
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chan = self.channels[addr]
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outpoints = [Outpoint(x["tx_hash"], x["tx_pos"]) for x in result]
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if chan.funding_outpoint not in outpoints:
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self.channel_state[chan.channel_id] = "CLOSED"
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