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lbry-sdk/lbrynet/conf.py
Thomas Zarebczan 6c3eee0f0e Update conf.py
2019-01-10 23:50:59 -05:00

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import os
import re
import sys
import typing
import json
import logging
import envparse
import base58
import yaml
from appdirs import user_data_dir, user_config_dir
from lbrynet import utils
from lbrynet.p2p.Error import InvalidCurrencyError
log = logging.getLogger(__name__)
ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
ENV_NAMESPACE = 'LBRY_'
LBRYCRD_WALLET = 'lbrycrd'
LBRYUM_WALLET = 'lbryum'
PTC_WALLET = 'ptc'
TORBA_WALLET = 'torba'
PROTOCOL_PREFIX = 'lbry'
APP_NAME = 'LBRY'
LINUX = 1
DARWIN = 2
WINDOWS = 3
ANDROID = 4
KB = 2 ** 10
MB = 2 ** 20
DEFAULT_CONCURRENT_ANNOUNCERS = 10
DEFAULT_DHT_NODES = [
('lbrynet1.lbry.io', 4444), # US EAST
('lbrynet2.lbry.io', 4444), # US WEST
('lbrynet3.lbry.io', 4444), # EU
('lbrynet4.lbry.io', 4444) # ASIA
]
settings_decoders = {
'.json': json.loads,
'.yml': yaml.load
}
settings_encoders = {
'.json': json.dumps,
'.yml': yaml.safe_dump
}
if 'ANDROID_ARGUMENT' in os.environ:
# https://github.com/kivy/kivy/blob/master/kivy/utils.py#L417-L421
platform = ANDROID
elif 'darwin' in sys.platform:
platform = DARWIN
elif 'win' in sys.platform:
platform = WINDOWS
else:
platform = LINUX
ICON_PATH = 'icons' if platform is WINDOWS else 'app.icns'
def get_windows_directories() -> typing.Tuple[str, str, str]:
from lbrynet.winpaths import get_path, FOLDERID, UserHandle
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]:
download_dir = None
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('\$HOME', os.getenv('HOME'), down_dir)
download_dir = re.sub('\"', '', down_dir)
except EnvironmentError:
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
def server_port(server_and_port):
server, port = server_and_port.split(':')
return server, int(port)
def server_list(servers):
return [server_port(server) for server in servers]
def server_list_reverse(servers):
return [f"{server}:{port}" for server, port in servers]
class Env(envparse.Env):
"""An Env parser that automatically namespaces the variables with LBRY"""
def __init__(self, **schema):
self.original_schema = schema
my_schema = {
self._convert_key(key): self._convert_value(value)
for key, value in schema.items()
}
super().__init__(**my_schema)
def __call__(self, key, *args, **kwargs):
my_key = self._convert_key(key)
return super().__call__(my_key, *args, **kwargs)
@staticmethod
def _convert_key(key):
return ENV_NAMESPACE + key.upper()
@staticmethod
def _convert_value(value):
""" Allow value to be specified as a tuple or list.
If you do this, the tuple/list must be of the
form (cast, default) or (cast, default, subcast)
"""
if isinstance(value, (tuple, list)):
new_value = {'cast': value[0], 'default': value[1]}
if len(value) == 3:
new_value['subcast'] = value[2]
return new_value
return value
TYPE_DEFAULT = 'default'
TYPE_PERSISTED = 'persisted'
TYPE_ENV = 'env'
TYPE_CLI = 'cli'
TYPE_RUNTIME = 'runtime'
FIXED_SETTINGS = {
'ANALYTICS_ENDPOINT': 'https://api.segment.io/v1',
'ANALYTICS_TOKEN': 'Ax5LZzR1o3q3Z3WjATASDwR5rKyHH0qOIRIbLmMXn2H=',
'API_ADDRESS': 'lbryapi',
'APP_NAME': APP_NAME,
'BLOBFILES_DIR': 'blobfiles',
'CRYPTSD_FILE_EXTENSION': '.cryptsd',
'CURRENCIES': {
'BTC': {'type': 'crypto'},
'LBC': {'type': 'crypto'},
'USD': {'type': 'fiat'},
},
'DB_REVISION_FILE_NAME': 'db_revision',
'ICON_PATH': ICON_PATH,
'LOGGLY_TOKEN': 'BQEzZmMzLJHgAGxkBF00LGD0YGuyATVgAmqxAQEuAQZ2BQH4',
'LOG_FILE_NAME': 'lbrynet.log',
'LOG_POST_URL': 'https://lbry.io/log-upload',
'MAX_BLOB_REQUEST_SIZE': 64 * KB,
'MAX_HANDSHAKE_SIZE': 64 * KB,
'MAX_REQUEST_SIZE': 64 * KB,
'MAX_RESPONSE_INFO_SIZE': 64 * KB,
'MAX_BLOB_INFOS_TO_REQUEST': 20,
'PROTOCOL_PREFIX': PROTOCOL_PREFIX,
'SLACK_WEBHOOK': ('nUE0pUZ6Yl9bo29epl5moTSwnl5wo20ip2IlqzywMKZiIQSFZR5'
'AHx4mY0VmF0WQZ1ESEP9kMHZlp1WzJwWOoKN3ImR1M2yUAaMyqGZ='),
'WALLET_TYPES': [LBRYUM_WALLET, LBRYCRD_WALLET],
'HEADERS_FILE_SHA256_CHECKSUM': (366295, 'b0c8197153a33ccbc52fb81a279588b6015b68b7726f73f6a2b81f7e25bfe4b9')
}
ADJUSTABLE_SETTINGS = {
'data_dir': (str, ''), # these blank defaults will be updated to OS specific defaults
'wallet_dir': (str, ''),
'lbryum_wallet_dir': (str, ''), # to be deprecated
'download_directory': (str, ''),
# By default, daemon will block all cross origin requests
# but if this is set, this value will be used for the
# Access-Control-Allow-Origin. For example
# set to '*' to allow all requests, or set to 'http://localhost:8080'
# if you're running a test UI on that port
'allowed_origin': (str, ''),
# Changing this value is not-advised as it could potentially
# expose the lbrynet daemon to the outside world which would
# give an attacker access to your wallet and you could lose
# all of your credits.
'api_host': (str, 'localhost'),
'api_port': (int, 5279),
# claims set to expire within this many blocks will be
# automatically renewed after startup (if set to 0, renews
# will not be made automatically)
'auto_renew_claim_height_delta': (int, 0),
'cache_time': (int, 150),
'data_rate': (float, .0001), # points/megabyte
'delete_blobs_on_remove': (bool, True),
'dht_node_port': (int, 4444),
'download_timeout': (int, 180),
'download_mirrors': (list, ['blobs.lbry.io']),
'is_generous_host': (bool, True),
'announce_head_blobs_only': (bool, True),
'concurrent_announcers': (int, DEFAULT_CONCURRENT_ANNOUNCERS),
'known_dht_nodes': (list, DEFAULT_DHT_NODES, server_list, server_list_reverse),
'max_connections_per_stream': (int, 5),
'seek_head_blob_first': (bool, True),
# TODO: writing json on the cmd line is a pain, come up with a nicer
# parser for this data structure. maybe 'USD:25'
'max_key_fee': (json.loads, {'currency': 'USD', 'amount': 50.0}),
'disable_max_key_fee': (bool, False),
'min_info_rate': (float, .02), # points/1000 infos
'min_valuable_hash_rate': (float, .05), # points/1000 infos
'min_valuable_info_rate': (float, .05), # points/1000 infos
'peer_port': (int, 3333),
'pointtrader_server': (str, 'http://127.0.0.1:2424'),
'reflector_port': (int, 5566),
# if reflect_uploads is True, send files to reflector after publishing (as well as a periodic check in the
# event the initial upload failed or was disconnected part way through, provided the auto_re_reflect_interval > 0)
'reflect_uploads': (bool, True),
'auto_re_reflect_interval': (int, 86400), # set to 0 to disable
'reflector_servers': (list, [('reflector.lbry.io', 5566)], server_list, server_list_reverse),
'run_reflector_server': (bool, False), # adds `reflector` to components_to_skip unless True
'sd_download_timeout': (int, 3),
'share_usage_data': (bool, True), # whether to share usage stats and diagnostic info with LBRY
'peer_search_timeout': (int, 60),
'use_auth_http': (bool, False),
'use_https': (bool, False),
'use_upnp': (bool, True),
'use_keyring': (bool, False),
'wallet': (str, LBRYUM_WALLET),
'blockchain_name': (str, 'lbrycrd_main'),
'lbryum_servers': (list, [('lbryumx1.lbry.io', 50001), ('lbryumx2.lbry.io',
50001)], server_list, server_list_reverse),
's3_headers_depth': (int, 96 * 10), # download headers from s3 when the local height is more than 10 chunks behind
'components_to_skip': (list, []) # components which will be skipped during start-up of daemon
}
optional_str = typing.Optional[str]
class Config:
def __init__(self, fixed_defaults, adjustable_defaults: typing.Dict, persisted_settings=None, environment=None,
cli_settings=None, data_dir: optional_str = None, wallet_dir: optional_str = None,
download_dir: optional_str = None, file_name: optional_str = None):
self._installation_id = None
self._session_id = base58.b58encode(utils.generate_id()).decode()
self._node_id = None
self._fixed_defaults = fixed_defaults
# copy the default adjustable settings
self._adjustable_defaults = {k: v for k, v in adjustable_defaults.items()}
# set the os specific default directories
if platform is WINDOWS:
self.default_data_dir, self.default_wallet_dir, self.default_download_dir = get_windows_directories()
elif platform is DARWIN:
self.default_data_dir, self.default_wallet_dir, self.default_download_dir = get_darwin_directories()
elif platform is LINUX:
self.default_data_dir, self.default_wallet_dir, self.default_download_dir = get_linux_directories()
else:
assert None not in [data_dir, wallet_dir, download_dir]
if data_dir:
self.default_data_dir = data_dir
if wallet_dir:
self.default_wallet_dir = wallet_dir
if download_dir:
self.default_download_dir = download_dir
self._data = {
TYPE_DEFAULT: {}, # defaults
TYPE_PERSISTED: {}, # stored settings from daemon_settings.yml (or from a db, etc)
TYPE_ENV: {}, # settings from environment variables
TYPE_CLI: {}, # command-line arguments
TYPE_RUNTIME: {}, # set during runtime (using self.set(), etc)
}
# the order in which a piece of data is searched for. earlier types override later types
self._search_order = (
TYPE_RUNTIME, TYPE_CLI, TYPE_ENV, TYPE_PERSISTED, TYPE_DEFAULT
)
# types of data where user specified config values can be stored
self._user_specified = (
TYPE_RUNTIME, TYPE_CLI, TYPE_ENV, TYPE_PERSISTED
)
self._data[TYPE_DEFAULT].update(self._fixed_defaults)
self._data[TYPE_DEFAULT].update(
{k: v[1] for (k, v) in self._adjustable_defaults.items()})
if persisted_settings is None:
persisted_settings = {}
self._validate_settings(persisted_settings)
self._data[TYPE_PERSISTED].update(persisted_settings)
env_settings = self._parse_environment(environment)
self._validate_settings(env_settings)
self._data[TYPE_ENV].update(env_settings)
if cli_settings is None:
cli_settings = {}
self._validate_settings(cli_settings)
self._data[TYPE_CLI].update(cli_settings)
self.file_name = file_name or 'daemon_settings.yml'
@property
def data_dir(self) -> optional_str:
data_dir = self.get('data_dir')
if not data_dir:
return
return os.path.expanduser(os.path.expandvars(data_dir))
@property
def download_dir(self) -> optional_str:
download_dir = self.get('download_directory')
if not download_dir:
return
return os.path.expanduser(os.path.expandvars(download_dir))
@property
def wallet_dir(self) -> optional_str:
if self.get('lbryum_wallet_dir') and not self.get('wallet_dir'):
log.warning("'lbryum_wallet_dir' setting will be deprecated, please update to 'wallet_dir'")
self['wallet_dir'] = self['lbryum_wallet_dir']
wallet_dir = self.get('wallet_dir')
if not wallet_dir:
return
return os.path.expanduser(os.path.expandvars(wallet_dir))
def __repr__(self):
return self.get_current_settings_dict().__repr__()
def __iter__(self):
for k in self._data[TYPE_DEFAULT].keys():
yield k
def __getitem__(self, name):
return self.get(name)
def __setitem__(self, name, value):
return self.set(name, value)
def __contains__(self, name):
return name in self._data[TYPE_DEFAULT]
@staticmethod
def _parse_environment(environment):
env_settings = {}
if environment is not None:
assert isinstance(environment, Env)
for opt in environment.original_schema:
if environment(opt) is not None:
env_settings[opt] = environment(opt)
return env_settings
def _assert_valid_data_type(self, data_type):
if data_type not in self._data:
raise KeyError(f'{data_type} in is not a valid data type')
def get_valid_setting_names(self):
return self._data[TYPE_DEFAULT].keys()
def _is_valid_setting(self, name):
return name in self.get_valid_setting_names()
def _assert_valid_setting(self, name):
if not self._is_valid_setting(name):
raise KeyError(f'{name} is not a valid setting')
def _validate_settings(self, data):
invalid_settings = set(data.keys()) - set(self.get_valid_setting_names())
if len(invalid_settings) > 0:
raise KeyError('invalid settings: {}'.format(', '.join(invalid_settings)))
def _assert_editable_setting(self, name):
self._assert_valid_setting(name)
if name in self._fixed_defaults:
raise ValueError(f'{name} is not an editable setting')
def _assert_valid_setting_value(self, name, value):
if name == "max_key_fee":
currency = str(value["currency"]).upper()
if currency not in self._fixed_defaults['CURRENCIES'].keys():
raise InvalidCurrencyError(currency)
elif name == "download_directory":
directory = str(value)
if not os.path.exists(directory):
log.warning("download directory '%s' does not exist", directory)
def is_default(self, name):
"""Check if a config value is wasn't specified by the user
Args:
name: the name of the value to check
Returns: true if config value is the default one, false if it was specified by
the user
Sometimes it may be helpful to understand if a config value was specified
by the user or if it still holds its default value. This function will return
true when the config value is still the default. Note that when the user
specifies a value that is equal to the default one, it will still be considered
as 'user specified'
"""
self._assert_valid_setting(name)
for possible_data_type in self._user_specified:
if name in self._data[possible_data_type]:
return False
return True
def get(self, name, data_type=None):
"""Get a config value
Args:
name: the name of the value to get
data_type: if given, get the value from a specific data set (see below)
Returns: the config value for the given name
If data_type is None, get() will search for the given name in each data set, in
order of precedence. It will return the first value it finds. This is the "effective"
value of a config name. For example, ENV values take precedence over DEFAULT values,
so if a value is present in ENV and in DEFAULT, the ENV value will be returned
"""
self._assert_valid_setting(name)
if data_type is not None:
self._assert_valid_data_type(data_type)
return self._data[data_type][name]
for possible_data_type in self._search_order:
if name in self._data[possible_data_type]:
return self._data[possible_data_type][name]
raise KeyError(f'{name} is not a valid setting')
def set(self, name, value, data_types=(TYPE_RUNTIME,)):
"""Set a config value
Args:
name: the name of the value to set
value: the value
data_types: what type(s) of data this is
Returns: None
By default, this sets the RUNTIME value of a config. If you wish to set other
data types (e.g. PERSISTED values to save to a file, CLI values from parsed
command-line options, etc), you can specify that with the data_types param
"""
self._assert_editable_setting(name)
self._assert_valid_setting_value(name, value)
for data_type in data_types:
self._assert_valid_data_type(data_type)
self._data[data_type][name] = value
def update(self, updated_settings, data_types=(TYPE_RUNTIME,)):
for k, v in updated_settings.items():
try:
self.set(k, v, data_types=data_types)
except (KeyError, AssertionError):
pass
def get_current_settings_dict(self):
current_settings = {}
for key in self.get_valid_setting_names():
current_settings[key] = self.get(key)
return current_settings
def get_adjustable_settings_dict(self):
return {
key: val for key, val in self.get_current_settings_dict().items()
if key in self._adjustable_defaults
}
def save_conf_file_settings(self):
# reverse the conversions done after loading the settings from the conf
# file
rev = self._convert_conf_file_lists_reverse(self._data[TYPE_PERSISTED])
ext = os.path.splitext(self.file_name)[1]
encoder = settings_encoders.get(ext, False)
if not encoder:
raise ValueError('Unknown settings format: {}. Available formats: {}'
.format(ext, list(settings_encoders.keys())))
with open(os.path.join(self.data_dir, self.file_name), 'w') as settings_file:
settings_file.write(encoder(rev))
@staticmethod
def _convert_conf_file_lists_reverse(converted):
rev = {}
for k in converted.keys():
if k in ADJUSTABLE_SETTINGS and len(ADJUSTABLE_SETTINGS[k]) == 4:
rev[k] = ADJUSTABLE_SETTINGS[k][3](converted[k])
else:
rev[k] = converted[k]
return rev
@staticmethod
def _convert_conf_file_lists(decoded):
converted = {}
for k, v in decoded.items():
if k in ADJUSTABLE_SETTINGS and len(ADJUSTABLE_SETTINGS[k]) >= 3:
converted[k] = ADJUSTABLE_SETTINGS[k][2](v)
else:
converted[k] = v
return converted
def initialize_post_conf_load(self):
settings.installation_id = settings.get_installation_id()
settings.node_id = settings.get_node_id()
def load_conf_file_settings(self):
path = os.path.join(self.data_dir or self.default_data_dir, self.file_name)
if os.path.isfile(path):
self._read_conf_file(path)
self['data_dir'] = self.data_dir or self.default_data_dir
self['download_directory'] = self.download_dir or self.default_download_dir
self['wallet_dir'] = self.wallet_dir or self.default_wallet_dir
# initialize members depending on config file
self.initialize_post_conf_load()
def _read_conf_file(self, path):
if not path or not os.path.exists(path):
raise FileNotFoundError(path)
ext = os.path.splitext(path)[1]
decoder = settings_decoders.get(ext, False)
if not decoder:
raise ValueError('Unknown settings format: {}. Available formats: {}'
.format(ext, list(settings_decoders.keys())))
with open(path, 'r') as settings_file:
data = settings_file.read()
decoded = self._fix_old_conf_file_settings(decoder(data))
log.info('Loaded settings file: %s', path)
self._validate_settings(decoded)
self._data[TYPE_PERSISTED].update(self._convert_conf_file_lists(decoded))
def _fix_old_conf_file_settings(self, settings_dict):
if 'API_INTERFACE' in settings_dict:
settings_dict['api_host'] = settings_dict['API_INTERFACE']
del settings_dict['API_INTERFACE']
if 'startup_scripts' in settings_dict:
del settings_dict['startup_scripts']
if 'upload_log' in settings_dict:
settings_dict['share_usage_data'] = settings_dict['upload_log']
del settings_dict['upload_log']
if 'share_debug_info' in settings_dict:
settings_dict['share_usage_data'] = settings_dict['share_debug_info']
del settings_dict['share_debug_info']
for key in list(settings_dict.keys()):
if not self._is_valid_setting(key):
log.warning('Ignoring invalid conf file setting: %s', key)
del settings_dict[key]
return settings_dict
def ensure_data_dir(self):
# although there is a risk of a race condition here we don't
# expect there to be multiple processes accessing this
# directory so the risk can be ignored
if not os.path.isdir(self.data_dir):
os.makedirs(self.data_dir)
if not os.path.isdir(os.path.join(self.data_dir, "blobfiles")):
os.makedirs(os.path.join(self.data_dir, "blobfiles"))
return self.data_dir
def ensure_wallet_dir(self):
if not os.path.isdir(self.wallet_dir):
os.makedirs(self.wallet_dir)
def ensure_download_dir(self):
if not os.path.isdir(self.download_dir):
os.makedirs(self.download_dir)
def get_log_filename(self):
"""
Return the log file for this platform.
Also ensure the containing directory exists.
"""
return os.path.join(self.ensure_data_dir(), self['LOG_FILE_NAME'])
def get_api_connection_string(self, user: str = None, password: str = None) -> str:
return 'http%s://%s%s:%i/%s' % (
"" if not self['use_https'] else "s",
"" if not (user and password) else f"{user}:{password}@",
self['api_host'],
self['api_port'],
self['API_ADDRESS']
)
def get_db_revision_filename(self):
return os.path.join(self.ensure_data_dir(), self['DB_REVISION_FILE_NAME'])
def get_installation_id(self):
install_id_filename = os.path.join(self.ensure_data_dir(), "install_id")
if not self._installation_id:
if os.path.isfile(install_id_filename):
with open(install_id_filename, "r") as install_id_file:
self._installation_id = str(install_id_file.read()).strip()
if not self._installation_id:
self._installation_id = base58.b58encode(utils.generate_id()).decode()
with open(install_id_filename, "w") as install_id_file:
install_id_file.write(self._installation_id)
return self._installation_id
def get_node_id(self):
node_id_filename = os.path.join(self.ensure_data_dir(), "node_id")
if not self._node_id:
if os.path.isfile(node_id_filename):
with open(node_id_filename, "r") as node_id_file:
self._node_id = base58.b58decode(str(node_id_file.read()).strip())
if not self._node_id:
self._node_id = utils.generate_id()
with open(node_id_filename, "w") as node_id_file:
node_id_file.write(base58.b58encode(self._node_id).decode())
return self._node_id
def get_session_id(self):
return self._session_id
settings: Config = None
def get_default_env():
env_defaults = {}
for k, v in ADJUSTABLE_SETTINGS.items():
if len(v) == 3:
env_defaults[k] = (v[0], None, v[2])
elif len(v) == 4:
env_defaults[k] = (v[0], None, v[2], v[3])
else:
env_defaults[k] = (v[0], None)
return Env(**env_defaults)
def initialize_settings(load_conf_file: typing.Optional[bool] = True,
data_dir: optional_str = None, wallet_dir: optional_str = None,
download_dir: optional_str = None):
global settings
if settings is None:
settings = Config(FIXED_SETTINGS, ADJUSTABLE_SETTINGS,
environment=get_default_env(), data_dir=data_dir, wallet_dir=wallet_dir,
download_dir=download_dir)
if load_conf_file:
settings.load_conf_file_settings()
settings['data_dir'] = settings.data_dir or settings.default_data_dir
settings['download_directory'] = settings.download_dir or settings.default_download_dir
settings['wallet_dir'] = settings.wallet_dir or settings.default_wallet_dir
settings.ensure_data_dir()
settings.ensure_wallet_dir()
settings.ensure_download_dir()
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