def remove_markets(self, type, authorities=[]):
""" Remove markets from an assets white/black list
:param str type: ``blacklist`` or ``whitelist``
:param list markets: List of markets (assets)
"""
assert type in ["blacklist", "whitelist"]
assert isinstance(authorities, (list, set))
options = self["options"]
if type == "whitelist":
for a in authorities:
options["whitelist_markets"].remove(Asset(a)["id"])
if type == "blacklist":
for a in authorities:
options["blacklist_markets"].remove(Asset(a)["id"])
op = operations.Asset_update(
**{
"fee": {
"amount": 0,
"asset_id": "1.3.0"
},
"issuer": self["issuer"],
"asset_to_update": self["id"],
"new_options": options,
"extensions": [],
})
return self.blockchain.finalizeOp(op, self["issuer"], "active")
def set_market_fee(self, percentage_fee, max_market_fee):
""" Set trading percentage fee
:param float percentage_fee: Percentage of fee
:param dexstore.amount.Amount max_market_fee: Max Fee
"""
assert percentage_fee <= 100 and percentage_fee > 0
flags = {"charge_market_fee": percentage_fee > 0}
options = self["options"]
test_permissions(options["issuer_permissions"], flags)
flags_int = force_flag(options["flags"], flags)
options.update({
"flags": flags_int,
"market_fee_percent": percentage_fee * 100,
"max_market_fee": int(max_market_fee),
})
op = operations.Asset_update(
**{
"fee": {
"amount": 0,
"asset_id": "1.3.0"
},
"issuer": self["issuer"],
"asset_to_update": self["id"],
"new_options": options,
"extensions": [],
})
return self.blockchain.finalizeOp(op, self["issuer"], "active")
def add_authorities(self, type, authorities=[]):
""" Add authorities to an assets white/black list
:param str type: ``blacklist`` or ``whitelist``
:param list authorities: List of authorities (Accounts)
"""
assert type in ["blacklist", "whitelist"]
assert isinstance(authorities, (list, set))
from .account import Account
options = self["options"]
if type == "whitelist":
options["whitelist_authorities"].extend(
[Account(a)["id"] for a in authorities])
if type == "blacklist":
options["blacklist_authorities"].extend(
[Account(a)["id"] for a in authorities])
op = operations.Asset_update(
**{
"fee": {
"amount": 0,
"asset_id": "1.3.0"
},
"issuer": self["issuer"],
"asset_to_update": self["id"],
"new_options": options,
"extensions": [],
})
return self.blockchain.finalizeOp(op, self["issuer"], "active")
def halt(self):
""" Halt this asset from being moved or traded
"""
from .account import Account
nullaccount = Account(
"null-account", # We set the null-account
blockchain_instance=self.blockchain,
)
flags = {"white_list": True, "transfer_restricted": True}
options = self["options"]
test_permissions(options["issuer_permissions"], flags)
flags_int = force_flag(options["flags"], flags)
options.update({
"flags": flags_int,
"whitelist_authorities": [nullaccount["id"]],
"blacklist_authorities": [],
"whitelist_markets": [self["id"]],
"blacklist_markets": [],
})
op = operations.Asset_update(
**{
"fee": {
"amount": 0,
"asset_id": "1.3.0"
},
"issuer": self["issuer"],
"asset_to_update": self["id"],
"new_options": options,
"extensions": [],
})
return self.blockchain.finalizeOp(op, self["issuer"], "active")
def test_asset_update_issuer_fail(self):
with self.assertRaises(ValueError):
self.op = operations.Asset_update(
**{
"fee": {
"amount": 0,
"asset_id": "1.3.0"
},
"issuer": "1.2.0",
"asset_to_update": "1.3.0",
"new_issuer": "1.2.1",
"extensions": [],
})
def release(
self,
whitelist_authorities=[],
blacklist_authorities=[],
whitelist_markets=[],
blacklist_markets=[],
):
""" Release this asset and allow unrestricted transfer, trading,
etc.
:param list whitelist_authorities: List of accounts that
serve as whitelist authorities
:param list blacklist_authorities: List of accounts that
serve as blacklist authorities
:param list whitelist_markets: List of assets to allow
trading with
:param list blacklist_markets: List of assets to prevent
trading with
"""
from .account import Account
flags = {"white_list": False, "transfer_restricted": False}
options = self["options"]
test_permissions(options["issuer_permissions"], flags)
flags_int = force_flag(options["flags"], flags)
options.update({
"flags":
flags_int,
"whitelist_authorities":
[Account(a)["id"] for a in whitelist_authorities],
"blacklist_authorities":
[Account(a)["id"] for a in blacklist_authorities],
"whitelist_markets": [Asset(a)["id"] for a in whitelist_markets],
"blacklist_markets": [Asset(a)["id"] for a in blacklist_markets],
})
op = operations.Asset_update(
**{
"fee": {
"amount": 0,
"asset_id": "1.3.0"
},
"issuer": self["issuer"],
"asset_to_update": self["id"],
"new_options": options,
"extensions": [],
})
return self.blockchain.finalizeOp(op, self["issuer"], "active")
def test_asset_update(self):
self.op = operations.Asset_update(
**{
"fee": {
"amount": 0,
"asset_id": "1.3.0"
},
"issuer": "1.2.0",
"asset_to_update": "1.3.0",
"new_options": {
"max_supply": "1000000000000000",
"market_fee_percent": 0,
"max_market_fee": "1000000000000000",
"issuer_permissions": 79,
"flags": 0,
"core_exchange_rate": {
"base": {
"amount": 0,
"asset_id": "1.3.0"
},
"quote": {
"amount": 0,
"asset_id": "1.3.0"
},
},
"whitelist_authorities": [],
"blacklist_authorities": [],
"whitelist_markets": [],
"blacklist_markets": [],
"description": "",
"extensions": [],
},
"extensions": [],
})
self.cm = ("f68585abf4dce7c80457010b000000000000000000000000008"
"0c6a47e8d030000000080c6a47e8d03004f0000000000000000"
"000000000000000000000000000000000000000000011f51477"
"1af6ac47a12a387979b6452afcd3f50514277efd7938f5227a7"
"fe7287db529d251e2b7c31d4a2d8ed59035b78b64f95e6011d9"
"58ab9504008a56c83cbb6")
self.doit()
def add_markets(self, type, authorities=[], force_enable=True):
""" Add markets to an assets white/black list
:param str type: ``blacklist`` or ``whitelist``
:param list markets: List of markets (assets)
:param bool force_enable: Force enable ``white_list`` flag
"""
assert type in ["blacklist", "whitelist"]
assert isinstance(authorities, (list, set))
options = self["options"]
if force_enable:
test_permissions(options["issuer_permissions"],
{"white_list": True})
flags_int = force_flag(options["flags"], {"white_list": True})
options.update({"flags": flags_int})
else:
assert test_permissions(
options["flags"],
["white_list"]), "whitelist feature not enabled"
if type == "whitelist":
options["whitelist_markets"].extend(
[Asset(a)["id"] for a in authorities])
if type == "blacklist":
options["blacklist_markets"].extend(
[Asset(a)["id"] for a in authorities])
op = operations.Asset_update(
**{
"fee": {
"amount": 0,
"asset_id": "1.3.0"
},
"issuer": self["issuer"],
"asset_to_update": self["id"],
"new_options": options,
"extensions": [],
})
return self.blockchain.finalizeOp(op, self["issuer"], "active")
def setoptions(self, flags):
""" Enable a certain flag.
Flags:
* charge_market_fee
* white_list
* override_authority
* transfer_restricted
* disable_force_settle
* global_settle
* disable_confidential
* witness_fed_asset
* committee_fed_asset
:param dict flag: dictionary of flags and boolean
"""
assert set(flags.keys()).issubset(
asset_permissions.keys()), "unknown flag"
options = self["options"]
test_permissions(options["issuer_permissions"], flags)
flags_int = force_flag(options["flags"], flags)
options.update({"flags": flags_int})
op = operations.Asset_update(
**{
"fee": {
"amount": 0,
"asset_id": "1.3.0"
},
"issuer": self["issuer"],
"asset_to_update": self["id"],
"new_options": options,
"extensions": [],
})
return self.blockchain.finalizeOp(op, self["issuer"], "active")