async def blockchain_scripthash_listunspent(self, writer, query): # pylint: disable=W0613
"""Method: blockchain.scripthash.listunspent
Return an ordered list of UTXOs sent to a script hash.
"""
if "params" not in query or len(query["params"]) != 1:
return JsonRPCError.invalidparams()
scripthash = query["params"][0]
if not is_hash256_str(scripthash):
return JsonRPCError.invalidparams()
_ec, utxo = await self.bx.fetch_utxo(scripthash)
if _ec and _ec != 0:
self.log.debug("Got error: %s", repr(_ec))
return JsonRPCError.internalerror()
# TODO: Check mempool
ret = []
for i in utxo:
rec = i["received"]
ret.append({
"tx_pos": rec["index"],
"value": i["value"],
"tx_hash": hash_to_hex_str(rec["hash"]),
"height": rec["height"],
})
if len(ret) >= 2:
ret.reverse()
return {"result": ret}
async def blockchain_transaction_get_merkle(self, writer, query): # pylint: disable=W0613
"""Method: blockchain.transaction.get_merkle
Return the merkle branch to a confirmed transaction given its
hash and height.
"""
if "params" not in query or len(query["params"]) != 2:
return JsonRPCError.invalidparams()
tx_hash = query["params"][0]
height = query["params"][1]
if not is_hash256_str(tx_hash):
return JsonRPCError.invalidparams()
if not is_non_negative_integer(height):
return JsonRPCError.invalidparams()
_ec, hashes = await self.bx.fetch_block_transaction_hashes(height)
if _ec and _ec != 0:
self.log.debug("Got error: %s", repr(_ec))
return JsonRPCError.internalerror()
# Decouple from tuples
hashes = [i[0] for i in hashes]
tx_pos = hashes.index(unhexlify(tx_hash)[::-1])
branch = merkle_branch(hashes, tx_pos)
res = {
"block_height": int(height),
"pos": int(tx_pos),
"merkle": branch,
}
return {"result": res}
async def blockchain_scripthash_get_history(self, writer, query): # pylint: disable=W0613
"""Method: blockchain.scripthash.get_history
Return the confirmed and unconfirmed history of a script hash.
"""
if "params" not in query or len(query["params"]) != 1:
return JsonRPCError.invalidparams()
if not is_hash256_str(query["params"][0]):
return JsonRPCError.invalidparams()
_ec, data = await self.bx.fetch_history4(query["params"][0])
if _ec and _ec != 0:
self.log.debug("Got error: %s", repr(_ec))
return JsonRPCError.internalerror()
self.log.debug("hist: %s", data)
ret = []
# TODO: mempool
for i in data:
if "received" in i:
ret.append({
"height": i["received"]["height"],
"tx_hash": hash_to_hex_str(i["received"]["hash"]),
})
if "spent" in i:
ret.append({
"height": i["spent"]["height"],
"tx_hash": hash_to_hex_str(i["spent"]["hash"]),
})
return {"result": ret}
async def scripthash_subscribe(self, writer, query): # pylint: disable=W0613
"""Method: blockchain.scripthash.subscribe
Subscribe to a script hash.
"""
if "params" not in query or len(query["params"]) != 1:
return JsonRPCError.invalidparams()
scripthash = query["params"][0]
if not is_hash256_str(scripthash):
return JsonRPCError.invalidparams()
_ec, history = await self.bx.fetch_history4(scripthash)
if _ec and _ec != ZMQError.success:
self.log.error("bx.fetch_history4: %s", _ec.name)
return JsonRPCError.internalerror()
# TODO: Check how history4 acts for mempool/unconfirmed
status = ElectrumProtocol.__scripthash_status_from_history(history)
self.peers[self._get_peer(writer)]["sh"][scripthash] = {
"status": status
}
task = asyncio.create_task(self.scripthash_notifier(
writer, scripthash))
self.peers[self._get_peer(writer)]["sh"][scripthash]["task"] = task
if len(history) < 1:
return {"result": None}
return {"result": ElectrumProtocol.__scripthash_status_encode(status)}
async def scripthash_listunspent(self, writer, query): # pylint: disable=W0613
"""Method: blockchain.scripthash.listunspent
Return an ordered list of UTXOs sent to a script hash.
"""
if "params" not in query or len(query["params"]) != 1:
return JsonRPCError.invalidparams()
scripthash = query["params"][0]
if not is_hash256_str(scripthash):
return JsonRPCError.invalidparams()
_ec, utxo = await self.bx.fetch_utxo(scripthash)
if _ec and _ec != ZMQError.success:
self.log.error("bx.fetch_utxo: %s", _ec.name)
return JsonRPCError.internalerror()
ret = []
for i in utxo:
rec = i["received"]
ret.append({
"tx_pos":
rec["index"],
"value":
i["value"],
"tx_hash":
hash_to_hex_str(rec["hash"]),
"height":
rec["height"] if rec["height"] != 4294967295 else 0,
})
return {"result": ret}
async def scripthash_get_balance(self, writer, query): # pylint: disable=W0613
"""Method: blockchain.scripthash.get_balance
Return the confirmed and unconfirmed balances of a script hash.
"""
if "params" not in query or len(query["params"]) != 1:
return JsonRPCError.invalidparams()
if not is_hash256_str(query["params"][0]):
return JsonRPCError.invalidparams()
_ec, data = await self.bx.fetch_balance(query["params"][0])
if _ec and _ec != ZMQError.success:
self.log.error("bx.fetch_balance: %s", _ec.name)
return JsonRPCError.internalerror()
ret = {"confirmed": data[0], "unconfirmed": data[1]}
return {"result": ret}
async def blockchain_scripthash_get_balance(self, writer, query): # pylint: disable=W0613
"""Method: blockchain.scripthash.get_balance
Return the confirmed and unconfirmed balances of a script hash.
"""
if "params" not in query or len(query["params"]) != 1:
return JsonRPCError.invalidparams()
if not is_hash256_str(query["params"][0]):
return JsonRPCError.invalidparams()
_ec, data = await self.bx.fetch_balance(query["params"][0])
if _ec and _ec != 0:
self.log.debug("Got error: %s", repr(_ec))
return JsonRPCError.internalerror()
# TODO: confirmed/unconfirmed, see what's happening in libbitcoin
ret = {"confirmed": data, "unconfirmed": 0}
return {"result": ret}
async def blockchain_scripthash_unsubscribe(self, writer, query): # pylint: disable=W0613
"""Method: blockchain.scripthash.unsubscribe
Unsubscribe from a script hash, preventing future notifications
if its status changes.
"""
if "params" not in query or len(query["params"]) != 1:
return JsonRPCError.invalidparams()
scripthash = query["params"][0]
if not is_hash256_str(scripthash):
return JsonRPCError.invalidparams()
if scripthash in self.sh_subscriptions:
self.sh_subscriptions[scripthash]["task"].cancel()
await self.bx.unsubscribe_scripthash(scripthash)
del self.sh_subscriptions[scripthash]
return {"result": True}
return {"result": False}
async def blockchain_scripthash_subscribe(self, writer, query): # pylint: disable=W0613
"""Method: blockchain.scripthash.subscribe
Subscribe to a script hash.
"""
if "params" not in query or len(query["params"]) != 1:
return JsonRPCError.invalidparams()
scripthash = query["params"][0]
if not is_hash256_str(scripthash):
return JsonRPCError.invalidparams()
_ec, history = await self.bx.fetch_history4(scripthash)
if _ec and _ec != 0:
return JsonRPCError.internalerror()
task = asyncio.create_task(self.scripthash_notifier(writer, scripthash))
self.sh_subscriptions[scripthash] = {"task": task}
if len(history) < 1:
return {"result": None}
# TODO: Check how history4 acts for mempool/unconfirmed
status = []
for i in history:
if "received" in i:
status.append((
hash_to_hex_str(i["received"]["hash"]),
i["received"]["height"],
))
if "spent" in i:
status.append((
hash_to_hex_str(i["spent"]["hash"]),
i["spent"]["height"],
))
self.sh_subscriptions[scripthash]["status"] = status
return {"result": ElectrumProtocol.__scripthash_status(status)}