676 lines
22 KiB
Python
676 lines
22 KiB
Python
import os
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import re
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import sys
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import typing
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import logging
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import yaml
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from argparse import ArgumentParser
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from contextlib import contextmanager
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from appdirs import user_data_dir, user_config_dir
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from lbry.error import InvalidCurrencyError
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from lbry.dht import constants
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from torba.client.coinselection import STRATEGIES
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log = logging.getLogger(__name__)
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NOT_SET = type('NOT_SET', (object,), {})
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T = typing.TypeVar('T')
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CURRENCIES = {
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'BTC': {'type': 'crypto'},
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'LBC': {'type': 'crypto'},
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'USD': {'type': 'fiat'},
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}
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class Setting(typing.Generic[T]):
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def __init__(self, doc: str, default: typing.Optional[T] = None,
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previous_names: typing.Optional[typing.List[str]] = None,
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metavar: typing.Optional[str] = None):
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self.doc = doc
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self.default = default
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self.previous_names = previous_names or []
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self.metavar = metavar
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def __set_name__(self, owner, name):
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self.name = name
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@property
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def cli_name(self):
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return f"--{self.name.replace('_', '-')}"
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@property
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def no_cli_name(self):
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return f"--no-{self.name.replace('_', '-')}"
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def __get__(self, obj: typing.Optional['BaseConfig'], owner) -> T:
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if obj is None:
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return self
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for location in obj.search_order:
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if self.name in location:
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return location[self.name]
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return self.default
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def __set__(self, obj: 'BaseConfig', val: typing.Union[T, NOT_SET]):
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if val == NOT_SET:
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for location in obj.modify_order:
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if self.name in location:
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del location[self.name]
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else:
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self.validate(val)
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for location in obj.modify_order:
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location[self.name] = val
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def validate(self, val):
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raise NotImplementedError()
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def deserialize(self, value):
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return value
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def serialize(self, value):
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return value
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def contribute_to_argparse(self, parser: ArgumentParser):
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parser.add_argument(
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self.cli_name,
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help=self.doc,
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metavar=self.metavar,
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default=NOT_SET
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)
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class String(Setting[str]):
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def validate(self, val):
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assert isinstance(val, str), \
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f"Setting '{self.name}' must be a string."
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class Integer(Setting[int]):
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def validate(self, val):
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assert isinstance(val, int), \
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f"Setting '{self.name}' must be an integer."
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def deserialize(self, value):
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return int(value)
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class Float(Setting[float]):
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def validate(self, val):
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assert isinstance(val, float), \
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f"Setting '{self.name}' must be a decimal."
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def deserialize(self, value):
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return float(value)
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class Toggle(Setting[bool]):
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def validate(self, val):
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assert isinstance(val, bool), \
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f"Setting '{self.name}' must be a true/false value."
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def contribute_to_argparse(self, parser: ArgumentParser):
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parser.add_argument(
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self.cli_name,
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help=self.doc,
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action="store_true",
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default=NOT_SET
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)
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parser.add_argument(
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self.no_cli_name,
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help=f"Opposite of {self.cli_name}",
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dest=self.name,
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action="store_false",
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default=NOT_SET
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)
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class Path(String):
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def __init__(self, doc: str, default: str = '', *args, **kwargs):
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super().__init__(doc, default, *args, **kwargs)
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def __get__(self, obj, owner):
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value = super().__get__(obj, owner)
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if isinstance(value, str):
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return os.path.expanduser(os.path.expandvars(value))
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return value
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class MaxKeyFee(Setting[dict]):
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def validate(self, value):
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if value is not None:
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assert isinstance(value, dict) and set(value) == {'currency', 'amount'}, \
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f"Setting '{self.name}' must be a dict like \"{{'amount': 50.0, 'currency': 'USD'}}\"."
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if value["currency"] not in CURRENCIES:
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raise InvalidCurrencyError(value["currency"])
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@staticmethod
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def _parse_list(l):
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if l == ['null']:
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return None
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assert len(l) == 2, (
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'Max key fee is made up of either two values: '
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'"AMOUNT CURRENCY", or "null" (to set no limit)'
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)
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try:
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amount = float(l[0])
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except ValueError:
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raise AssertionError('First value in max key fee is a decimal: "AMOUNT CURRENCY"')
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currency = str(l[1]).upper()
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if currency not in CURRENCIES:
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raise InvalidCurrencyError(currency)
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return {'amount': amount, 'currency': currency}
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def deserialize(self, value):
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if value is None:
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return
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if isinstance(value, dict):
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return {
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'currency': value['currency'],
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'amount': float(value['amount']),
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}
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if isinstance(value, str):
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value = value.split()
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if isinstance(value, list):
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return self._parse_list(value)
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raise AssertionError('Invalid max key fee.')
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def contribute_to_argparse(self, parser: ArgumentParser):
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parser.add_argument(
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self.cli_name,
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help=self.doc,
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nargs='+',
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metavar=('AMOUNT', 'CURRENCY'),
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default=NOT_SET
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)
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parser.add_argument(
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self.no_cli_name,
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help=f"Disable maximum key fee check.",
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dest=self.name,
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const=None,
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action="store_const",
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default=NOT_SET
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)
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class StringChoice(String):
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def __init__(self, doc: str, valid_values: typing.List[str], default: str, *args, **kwargs):
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super().__init__(doc, default, *args, **kwargs)
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if not valid_values:
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raise ValueError("No valid values provided")
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if default not in valid_values:
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raise ValueError(f"Default value must be one of: {', '.join(valid_values)}")
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self.valid_values = valid_values
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def validate(self, val):
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super().validate(val)
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if val not in self.valid_values:
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raise ValueError(f"Setting '{self.name}' value must be one of: {', '.join(self.valid_values)}")
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class ListSetting(Setting[list]):
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def validate(self, val):
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assert isinstance(val, (tuple, list)), \
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f"Setting '{self.name}' must be a tuple or list."
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def contribute_to_argparse(self, parser: ArgumentParser):
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parser.add_argument(
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self.cli_name,
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help=self.doc,
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action='append'
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)
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class Servers(ListSetting):
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def validate(self, val):
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assert isinstance(val, (tuple, list)), \
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f"Setting '{self.name}' must be a tuple or list of servers."
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for idx, server in enumerate(val):
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assert isinstance(server, (tuple, list)) and len(server) == 2, \
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f"Server defined '{server}' at index {idx} in setting " \
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f"'{self.name}' must be a tuple or list of two items."
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assert isinstance(server[0], str), \
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f"Server defined '{server}' at index {idx} in setting " \
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f"'{self.name}' must be have hostname as string in first position."
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assert isinstance(server[1], int), \
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f"Server defined '{server}' at index {idx} in setting " \
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f"'{self.name}' must be have port as int in second position."
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def deserialize(self, value):
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servers = []
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if isinstance(value, list):
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for server in value:
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if isinstance(server, str) and server.count(':') == 1:
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host, port = server.split(':')
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try:
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servers.append((host, int(port)))
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except ValueError:
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pass
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return servers
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def serialize(self, value):
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if value:
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return [f"{host}:{port}" for host, port in value]
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return value
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class Strings(ListSetting):
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def validate(self, val):
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assert isinstance(val, (tuple, list)), \
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f"Setting '{self.name}' must be a tuple or list of strings."
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for idx, string in enumerate(val):
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assert isinstance(string, str), \
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f"Value of '{string}' at index {idx} in setting " \
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f"'{self.name}' must be a string."
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class EnvironmentAccess:
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PREFIX = 'LBRY_'
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def __init__(self, environ: dict):
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self.environ = environ
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def __contains__(self, item: str):
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return f'{self.PREFIX}{item.upper()}' in self.environ
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def __getitem__(self, item: str):
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return self.environ[f'{self.PREFIX}{item.upper()}']
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class ArgumentAccess:
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def __init__(self, config: 'BaseConfig', args: dict):
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self.configuration = config
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self.args = {}
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if args:
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self.load(args)
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def load(self, args):
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for setting in self.configuration.get_settings():
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value = getattr(args, setting.name, NOT_SET)
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if value != NOT_SET and not (isinstance(setting, ListSetting) and value is None):
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self.args[setting.name] = setting.deserialize(value)
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def __contains__(self, item: str):
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return item in self.args
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def __getitem__(self, item: str):
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return self.args[item]
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class ConfigFileAccess:
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def __init__(self, config: 'BaseConfig', path: str):
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self.configuration = config
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self.path = path
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self.data = {}
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if self.exists:
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self.load()
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@property
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def exists(self):
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return self.path and os.path.exists(self.path)
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def load(self):
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cls = type(self.configuration)
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with open(self.path, 'r') as config_file:
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raw = config_file.read()
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serialized = yaml.load(raw) or {}
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for key, value in serialized.items():
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attr = getattr(cls, key, None)
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if attr is None:
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for setting in self.configuration.settings:
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if key in setting.previous_names:
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attr = setting
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break
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if attr is not None:
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self.data[key] = attr.deserialize(value)
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def save(self):
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cls = type(self.configuration)
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serialized = {}
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for key, value in self.data.items():
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attr = getattr(cls, key)
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serialized[key] = attr.serialize(value)
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with open(self.path, 'w') as config_file:
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config_file.write(yaml.safe_dump(serialized, default_flow_style=False))
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def upgrade(self) -> bool:
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upgraded = False
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for key in list(self.data):
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for setting in self.configuration.settings:
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if key in setting.previous_names:
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self.data[setting.name] = self.data[key]
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del self.data[key]
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upgraded = True
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break
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return upgraded
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def __contains__(self, item: str):
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return item in self.data
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def __getitem__(self, item: str):
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return self.data[item]
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def __setitem__(self, key, value):
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self.data[key] = value
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def __delitem__(self, key):
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del self.data[key]
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TBC = typing.TypeVar('TBC', bound='BaseConfig')
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class BaseConfig:
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config = Path("Path to configuration file.", metavar='FILE')
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def __init__(self, **kwargs):
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self.runtime = {} # set internally or by various API calls
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self.arguments = {} # from command line arguments
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self.environment = {} # from environment variables
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self.persisted = {} # from config file
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self._updating_config = False
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for key, value in kwargs.items():
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setattr(self, key, value)
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@contextmanager
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def update_config(self):
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self._updating_config = True
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yield self
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self._updating_config = False
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if isinstance(self.persisted, ConfigFileAccess):
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self.persisted.save()
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@property
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def modify_order(self):
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locations = [self.runtime]
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if self._updating_config:
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locations.append(self.persisted)
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return locations
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@property
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def search_order(self):
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return [
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self.runtime,
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self.arguments,
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self.environment,
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self.persisted
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]
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@classmethod
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def get_settings(cls):
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for attr in dir(cls):
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setting = getattr(cls, attr)
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if isinstance(setting, Setting):
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yield setting
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@property
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def settings(self):
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return self.get_settings()
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@property
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def settings_dict(self):
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return {
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setting.name: getattr(self, setting.name) for setting in self.settings
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}
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@classmethod
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def create_from_arguments(cls, args) -> TBC:
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conf = cls()
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conf.set_arguments(args)
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conf.set_environment()
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conf.set_persisted()
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return conf
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@classmethod
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def contribute_to_argparse(cls, parser: ArgumentParser):
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for setting in cls.get_settings():
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setting.contribute_to_argparse(parser)
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def set_arguments(self, args):
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self.arguments = ArgumentAccess(self, args)
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def set_environment(self, environ=None):
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self.environment = EnvironmentAccess(environ or os.environ)
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def set_persisted(self, config_file_path=None):
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if config_file_path is None:
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config_file_path = self.config
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if not config_file_path:
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return
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ext = os.path.splitext(config_file_path)[1]
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assert ext in ('.yml', '.yaml'),\
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f"File extension '{ext}' is not supported, " \
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f"configuration file must be in YAML (.yaml)."
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self.persisted = ConfigFileAccess(self, config_file_path)
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if self.persisted.upgrade():
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self.persisted.save()
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class CLIConfig(BaseConfig):
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api = String('Host name and port for lbrynet daemon API.', 'localhost:5279', metavar='HOST:PORT')
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@property
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def api_connection_url(self) -> str:
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return f"http://{self.api}/lbryapi"
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@property
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def api_host(self):
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return self.api.split(':')[0]
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@property
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def api_port(self):
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return int(self.api.split(':')[1])
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class Config(CLIConfig):
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# directories
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data_dir = Path("Directory path to store blobs.", metavar='DIR')
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download_dir = Path(
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"Directory path to place assembled files downloaded from LBRY.",
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previous_names=['download_directory'], metavar='DIR'
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)
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wallet_dir = Path(
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"Directory containing a 'wallets' subdirectory with 'default_wallet' file.",
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previous_names=['lbryum_wallet_dir'], metavar='DIR'
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)
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wallets = Strings(
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"Wallet files in 'wallet_dir' to load at startup.",
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['default_wallet']
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)
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# network
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use_upnp = Toggle(
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"Use UPnP to setup temporary port redirects for the DHT and the hosting of blobs. If you manually forward"
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"ports or have firewall rules you likely want to disable this.", True
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)
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udp_port = Integer("UDP port for communicating on the LBRY DHT", 4444, previous_names=['dht_node_port'])
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tcp_port = Integer("TCP port to listen for incoming blob requests", 3333, previous_names=['peer_port'])
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network_interface = String("Interface to use for the DHT and blob exchange", '0.0.0.0')
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# routing table
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split_buckets_under_index = Integer(
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"Routing table bucket index below which we always split the bucket if given a new key to add to it and "
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"the bucket is full. As this value is raised the depth of the routing table (and number of peers in it) "
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"will increase. This setting is used by seed nodes, you probably don't want to change it during normal "
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"use.", 1
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)
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# protocol timeouts
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download_timeout = Float("Cumulative timeout for a stream to begin downloading before giving up", 30.0)
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blob_download_timeout = Float("Timeout to download a blob from a peer", 30.0)
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peer_connect_timeout = Float("Timeout to establish a TCP connection to a peer", 3.0)
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node_rpc_timeout = Float("Timeout when making a DHT request", constants.rpc_timeout)
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# blob announcement and download
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save_blobs = Toggle("Save encrypted blob files for hosting, otherwise download blobs to memory only.", True)
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blob_lru_cache_size = Integer(
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"LRU cache size for decrypted downloaded blobs used to minimize re-downloading the same blobs when "
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"replying to a range request. Set to 0 to disable.", 32
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)
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announce_head_and_sd_only = Toggle(
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"Announce only the descriptor and first (rather than all) data blob for a stream to the DHT", True,
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previous_names=['announce_head_blobs_only']
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)
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concurrent_blob_announcers = Integer(
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"Number of blobs to iteratively announce at once, set to 0 to disable", 10,
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previous_names=['concurrent_announcers']
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)
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max_connections_per_download = Integer(
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"Maximum number of peers to connect to while downloading a blob", 4,
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previous_names=['max_connections_per_stream']
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)
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fixed_peer_delay = Float(
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"Amount of seconds before adding the reflector servers as potential peers to download from in case dht"
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"peers are not found or are slow", 2.0
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)
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max_key_fee = MaxKeyFee(
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"Don't download streams with fees exceeding this amount. When set to "
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"null, the amount is unbounded.", {'currency': 'USD', 'amount': 50.0}
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)
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# reflector settings
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reflect_streams = Toggle(
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|
"Upload completed streams (published and downloaded) reflector in order to re-host them", True,
|
|
previous_names=['reflect_uploads']
|
|
)
|
|
concurrent_reflector_uploads = Integer(
|
|
"Maximum number of streams to upload to a reflector server at a time", 10
|
|
)
|
|
|
|
# servers
|
|
reflector_servers = Servers("Reflector re-hosting servers", [
|
|
('reflector.lbry.com', 5566)
|
|
])
|
|
lbryum_servers = Servers("SPV wallet servers", [
|
|
('spv1.lbry.com', 50001),
|
|
('spv2.lbry.com', 50001),
|
|
('spv3.lbry.com', 50001),
|
|
('spv4.lbry.com', 50001),
|
|
('spv5.lbry.com', 50001),
|
|
('spv6.lbry.com', 50001),
|
|
('spv7.lbry.com', 50001),
|
|
('spv8.lbry.com', 50001),
|
|
('spv9.lbry.com', 50001),
|
|
])
|
|
known_dht_nodes = Servers("Known nodes for bootstrapping connection to the DHT", [
|
|
('lbrynet1.lbry.com', 4444), # US EAST
|
|
('lbrynet2.lbry.com', 4444), # US WEST
|
|
('lbrynet3.lbry.com', 4444), # EU
|
|
('lbrynet4.lbry.com', 4444) # ASIA
|
|
])
|
|
|
|
comment_server = String("Comment server API URL", "https://comments.lbry.com/api")
|
|
|
|
# blockchain
|
|
blockchain_name = String("Blockchain name - lbrycrd_main, lbrycrd_regtest, or lbrycrd_testnet", 'lbrycrd_main')
|
|
s3_headers_depth = Integer("download headers from s3 when the local height is more than 10 chunks behind", 96 * 10)
|
|
cache_time = Integer("Time to cache resolved claims", 150) # TODO: use this
|
|
|
|
# daemon
|
|
save_files = Toggle("Save downloaded files when calling `get` by default", True)
|
|
components_to_skip = Strings("components which will be skipped during start-up of daemon", [])
|
|
share_usage_data = Toggle(
|
|
"Whether to share usage stats and diagnostic info with LBRY.", True,
|
|
previous_names=['upload_log', 'upload_log', 'share_debug_info']
|
|
)
|
|
track_bandwidth = Toggle("Track bandwidth usage", True)
|
|
|
|
# media server
|
|
streaming_server = String('Host name and port to serve streaming media over range requests',
|
|
'localhost:5280', metavar='HOST:PORT')
|
|
streaming_get = Toggle("Enable the /get endpoint for the streaming media server. "
|
|
"Disable to prevent new streams from being added.", True)
|
|
|
|
coin_selection_strategy = StringChoice(
|
|
"Strategy to use when selecting UTXOs for a transaction",
|
|
STRATEGIES, "standard")
|
|
|
|
@property
|
|
def streaming_host(self):
|
|
return self.streaming_server.split(':')[0]
|
|
|
|
@property
|
|
def streaming_port(self):
|
|
return int(self.streaming_server.split(':')[1])
|
|
|
|
def __init__(self, **kwargs):
|
|
super().__init__(**kwargs)
|
|
self.set_default_paths()
|
|
|
|
def set_default_paths(self):
|
|
if 'darwin' in sys.platform.lower():
|
|
get_directories = get_darwin_directories
|
|
elif 'win' in sys.platform.lower():
|
|
get_directories = get_windows_directories
|
|
elif 'linux' in sys.platform.lower():
|
|
get_directories = get_linux_directories
|
|
else:
|
|
return
|
|
cls = type(self)
|
|
cls.data_dir.default, cls.wallet_dir.default, cls.download_dir.default = get_directories()
|
|
cls.config.default = os.path.join(
|
|
self.data_dir, 'daemon_settings.yml'
|
|
)
|
|
|
|
@property
|
|
def log_file_path(self):
|
|
return os.path.join(self.data_dir, 'lbrynet.log')
|
|
|
|
|
|
def get_windows_directories() -> typing.Tuple[str, str, str]:
|
|
from lbry.winpaths import get_path, FOLDERID, UserHandle # pylint: disable=import-outside-toplevel
|
|
|
|
download_dir = get_path(FOLDERID.Downloads, UserHandle.current)
|
|
|
|
# old
|
|
appdata = get_path(FOLDERID.RoamingAppData, UserHandle.current)
|
|
data_dir = os.path.join(appdata, 'lbrynet')
|
|
lbryum_dir = os.path.join(appdata, 'lbryum')
|
|
if os.path.isdir(data_dir) or os.path.isdir(lbryum_dir):
|
|
return data_dir, lbryum_dir, download_dir
|
|
|
|
# new
|
|
data_dir = user_data_dir('lbrynet', 'lbry')
|
|
lbryum_dir = user_data_dir('lbryum', 'lbry')
|
|
download_dir = get_path(FOLDERID.Downloads, UserHandle.current)
|
|
return data_dir, lbryum_dir, download_dir
|
|
|
|
|
|
def get_darwin_directories() -> typing.Tuple[str, str, str]:
|
|
data_dir = user_data_dir('LBRY')
|
|
lbryum_dir = os.path.expanduser('~/.lbryum')
|
|
download_dir = os.path.expanduser('~/Downloads')
|
|
return data_dir, lbryum_dir, download_dir
|
|
|
|
|
|
def get_linux_directories() -> typing.Tuple[str, str, str]:
|
|
try:
|
|
with open(os.path.join(user_config_dir(), 'user-dirs.dirs'), 'r') as xdg:
|
|
down_dir = re.search(r'XDG_DOWNLOAD_DIR=(.+)', xdg.read()).group(1)
|
|
down_dir = re.sub(r'\$HOME', os.getenv('HOME') or os.path.expanduser("~/"), down_dir)
|
|
download_dir = re.sub('\"', '', down_dir)
|
|
except OSError:
|
|
download_dir = os.getenv('XDG_DOWNLOAD_DIR')
|
|
if not download_dir:
|
|
download_dir = os.path.expanduser('~/Downloads')
|
|
|
|
# old
|
|
data_dir = os.path.expanduser('~/.lbrynet')
|
|
lbryum_dir = os.path.expanduser('~/.lbryum')
|
|
if os.path.isdir(data_dir) or os.path.isdir(lbryum_dir):
|
|
return data_dir, lbryum_dir, download_dir
|
|
|
|
# new
|
|
return user_data_dir('lbry/lbrynet'), user_data_dir('lbry/lbryum'), download_dir
|