def get_spend_secret_hash(self):
with self.mutex:
if self.spend_secret is not None: # payee
return util.b2h(util.hash160(util.h2b(self.spend_secret)))
elif self.deposit_script_hex is not None: # payer
script = util.h2b(self.deposit_script_hex)
return get_deposit_spend_secret_hash(script)
else: # undefined
raise Exception("Undefined state, not payee or payer.")
def get_spend_secret_hash(self):
with self.mutex:
if self.spend_secret is not None: # payee
return util.b2h(util.hash160(util.h2b(self.spend_secret)))
elif self.deposit_script_hex is not None: # payer
script = util.h2b(self.deposit_script_hex)
return get_deposit_spend_secret_hash(script)
else: # undefined
raise Exception("Undefined state, not payee or payer.")
def set_commit(self, rawtx, script_hex):
with self.mutex:
self._assert_open_state()
# TODO validate rawtx
# TODO validate script
# TODO validate rawtx signed by payer
# TODO check it is for the current deposit
# TODO check given script and rawtx match
# TODO check given script is commit script
script = util.h2b(script_hex)
self._validate_commit_secret_hash(script)
self._validate_commit_payee_pubkey(script)
quantity = self.control.get_quantity(rawtx)
revoke_secret_hash = get_commit_revoke_secret_hash(script)
for revoke_secret in self.commits_requested[:]:
# revoke secret hash must match as it would
# otherwise break the channels reversability
if revoke_secret_hash == util.hash160hex(revoke_secret):
# remove from requests
self.commits_requested.remove(revoke_secret)
# add to active
self._order_active()
self.commits_active.append({
"rawtx": rawtx, "script": script_hex,
"revoke_secret": revoke_secret
})
return self.get_transferred_amount()
return None
def close_channel(self):
with self.mutex:
self._assert_open_state()
assert (len(self.commits_active) > 0)
self._order_active()
commit = self.commits_active[-1]
rawtx = self.control.finalize_commit(
self.payee_wif, commit["rawtx"],
util.h2b(self.deposit_script_hex))
commit["rawtx"] = rawtx # update commit
return util.gettxid(rawtx)
def revoke(self, secret):
with self.mutex:
secret_hash = util.hash160hex(secret)
for commit in self.commits_active[:]:
script = util.h2b(commit["script"])
if secret_hash == get_commit_revoke_secret_hash(script):
self.commits_active.remove(commit) # remove from active
commit["revoke_secret"] = secret # save secret
self.commits_revoked.append(commit) # add to revoked
return copy.deepcopy(commit)
return None
def revoke(self, secret):
with self.mutex:
secret_hash = util.hash160hex(secret)
for commit in self.commits_active[:]:
script = util.h2b(commit["script"])
if secret_hash == get_commit_revoke_secret_hash(script):
self.commits_active.remove(commit) # remove from active
commit["revoke_secret"] = secret # save secret
self.commits_revoked.append(commit) # add to revoked
return copy.deepcopy(commit)
return None
def close_channel(self):
with self.mutex:
self._assert_open_state()
assert(len(self.commits_active) > 0)
self._order_active()
commit = self.commits_active[-1]
rawtx = self.control.finalize_commit(
self.payee_wif, commit["rawtx"],
util.h2b(self.deposit_script_hex)
)
commit["rawtx"] = rawtx # update commit
return util.gettxid(rawtx)
def create_commit(self, quantity, revoke_secret_hash, delay_time):
with self.mutex:
self._validate_transfer_quantity(quantity)
rawtx, script = self.control.create_commit(
self.payer_wif, util.h2b(self.deposit_script_hex),
quantity, revoke_secret_hash, delay_time
)
script_hex = util.b2h(script)
self._order_active()
self.commits_active.append({
"rawtx": rawtx, "script": script_hex, "revoke_secret": None
})
return {"rawtx": rawtx, "script": script_hex}
def create_commit(self, quantity, revoke_secret_hash, delay_time):
with self.mutex:
self._validate_transfer_quantity(quantity)
rawtx, script = self.control.create_commit(
self.payer_wif, util.h2b(self.deposit_script_hex), quantity,
revoke_secret_hash, delay_time)
script_hex = util.b2h(script)
self._order_active()
self.commits_active.append({
"rawtx": rawtx,
"script": script_hex,
"revoke_secret": None
})
return {"rawtx": rawtx, "script": script_hex}
def set_deposit(self, rawtx, script_hex):
with self.mutex:
self._assert_unopen_state()
# TODO validate rawtx
# TODO validate script
# TODO check given script and rawtx match
# TODO check given script is deposit script
script = util.h2b(script_hex)
self._validate_deposit_spend_secret_hash(script)
self._validate_deposit_payee_pubkey(script)
self.deposit_rawtx = rawtx
self.deposit_script_hex = script_hex
def set_deposit(self, rawtx, script_hex):
with self.mutex:
self._assert_unopen_state()
# TODO validate rawtx
# TODO validate script
# TODO check given script and rawtx match
# TODO check given script is deposit script
script = util.h2b(script_hex)
self._validate_deposit_spend_secret_hash(script)
self._validate_deposit_payee_pubkey(script)
self.deposit_rawtx = rawtx
self.deposit_script_hex = script_hex
def set_commit(self, rawtx, script_hex):
with self.mutex:
self._assert_open_state()
# TODO validate rawtx
# TODO validate script
# TODO validate rawtx signed by payer
# TODO check it is for the current deposit
# TODO check given script and rawtx match
# TODO check given script is commit script
script = util.h2b(script_hex)
self._validate_commit_secret_hash(script)
self._validate_commit_payee_pubkey(script)
quantity = self.control.get_quantity(rawtx)
revoke_secret_hash = get_commit_revoke_secret_hash(script)
for revoke_secret in self.commits_requested[:]:
# revoke secret hash must match as it would
# otherwise break the channels reversability
if revoke_secret_hash == util.hash160hex(revoke_secret):
# remove from requests
self.commits_requested.remove(revoke_secret)
# add to active
self._order_active()
self.commits_active.append({
"rawtx": rawtx,
"script": script_hex,
"revoke_secret": revoke_secret
})
return self.get_transferred_amount()
return None
def timeout_recover(self):
with self.mutex:
script = util.h2b(self.deposit_script_hex)
self.timeout_rawtx = self.control.timeout_recover(
self.payer_wif, script
)
def is_deposit_expired(self):
with self.mutex:
script = util.h2b(self.deposit_script_hex)
t = get_deposit_expire_time(script)
return self.get_deposit_confirms() >= t
def is_deposit_expired(self):
with self.mutex:
script = util.h2b(self.deposit_script_hex)
t = get_deposit_expire_time(script)
return self.get_deposit_confirms() >= t
def timeout_recover(self):
with self.mutex:
script = util.h2b(self.deposit_script_hex)
self.timeout_rawtx = self.control.timeout_recover(
self.payer_wif, script)
def change_recover(self):
with self.mutex:
script = util.h2b(self.deposit_script_hex)
self.change_rawtx = self.control.change_recover(
self.payer_wif, script, self.spend_secret)
def change_recover(self):
with self.mutex:
script = util.h2b(self.deposit_script_hex)
self.change_rawtx = self.control.change_recover(
self.payer_wif, script, self.spend_secret
)