lbry-sdk/lbrynet/conf.py

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import base58
import json
import logging
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import os
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import re
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import sys
import yaml
import envparse
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from appdirs import user_data_dir, user_config_dir
from lbrynet.core import utils
from lbrynet.core.Error import InvalidCurrencyError, NoSuchDirectoryError
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from lbrynet.androidhelpers.paths import (
android_internal_storage_dir,
android_app_internal_storage_dir
)
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try:
from lbrynet.winhelpers.knownpaths import get_path, FOLDERID, UserHandle
except (ImportError, ValueError, NameError):
# Android platform: NameError: name 'c_wchar' is not defined
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pass
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log = logging.getLogger(__name__)
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ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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ENV_NAMESPACE = 'LBRY_'
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LBRYCRD_WALLET = 'lbrycrd'
LBRYUM_WALLET = 'lbryum'
PTC_WALLET = 'ptc'
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PROTOCOL_PREFIX = 'lbry'
APP_NAME = 'LBRY'
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LINUX = 1
DARWIN = 2
WINDOWS = 3
ANDROID = 4
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KB = 2 ** 10
MB = 2 ** 20
DEFAULT_CONCURRENT_ANNOUNCERS = 10
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DEFAULT_DHT_NODES = [
('lbrynet1.lbry.io', 4444),
('lbrynet2.lbry.io', 4444),
('lbrynet3.lbry.io', 4444)
]
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settings_decoders = {
'.json': json.loads,
'.yml': yaml.load
}
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settings_encoders = {
'.json': json.dumps,
'.yml': yaml.safe_dump
}
# set by CLI when the user specifies an alternate config file path
conf_file = None
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def _win_path_to_bytes(path):
"""
Encode Windows paths to string. appdirs.user_data_dir()
on windows will return unicode path, unlike other platforms
which returns string. This will cause problems
because we use strings for filenames and combining them with
os.path.join() will result in errors.
"""
for encoding in ('ASCII', 'MBCS'):
try:
return path.encode(encoding)
except (UnicodeEncodeError, LookupError):
pass
return path
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def _get_old_directories(platform_type):
directories = {}
if platform_type == WINDOWS:
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appdata = get_path(FOLDERID.RoamingAppData, UserHandle.current)
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directories['data'] = os.path.join(appdata, 'lbrynet')
directories['lbryum'] = os.path.join(appdata, 'lbryum')
directories['download'] = get_path(FOLDERID.Downloads, UserHandle.current)
elif platform_type == DARWIN:
directories['data'] = user_data_dir('LBRY')
directories['lbryum'] = os.path.expanduser('~/.lbryum')
directories['download'] = os.path.expanduser('~/Downloads')
elif platform_type == LINUX:
directories['data'] = os.path.expanduser('~/.lbrynet')
directories['lbryum'] = os.path.expanduser('~/.lbryum')
directories['download'] = os.path.expanduser('~/Downloads')
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else:
raise ValueError('unknown platform value')
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return directories
def _get_new_directories(platform_type):
directories = {}
if platform_type == ANDROID:
directories['data'] = '%s/lbrynet' % android_app_internal_storage_dir()
directories['lbryum'] = '%s/lbryum' % android_app_internal_storage_dir()
directories['download'] = '%s/Download' % android_internal_storage_dir()
elif platform_type == WINDOWS:
directories['data'] = user_data_dir('lbrynet', 'lbry')
directories['lbryum'] = user_data_dir('lbryum', 'lbry')
directories['download'] = get_path(FOLDERID.Downloads, UserHandle.current)
elif platform_type == DARWIN:
directories = _get_old_directories(platform_type)
elif platform_type == LINUX:
directories['data'] = user_data_dir('lbry/lbrynet')
directories['lbryum'] = user_data_dir('lbry/lbryum')
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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)
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directories['download'] = re.sub('\"', '', down_dir)
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except EnvironmentError:
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directories['download'] = os.getenv('XDG_DOWNLOAD_DIR')
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if not directories['download']:
directories['download'] = os.path.expanduser('~/Downloads')
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else:
raise ValueError('unknown platform value')
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return directories
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if 'ANDROID_ARGUMENT' in os.environ:
# https://github.com/kivy/kivy/blob/master/kivy/utils.py#L417-L421
platform = ANDROID
dirs = _get_new_directories(ANDROID)
elif 'darwin' in sys.platform:
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platform = DARWIN
dirs = _get_old_directories(DARWIN)
elif 'win' in sys.platform:
platform = WINDOWS
if os.path.isdir(_get_old_directories(WINDOWS)['data']) or \
os.path.isdir(_get_old_directories(WINDOWS)['lbryum']):
dirs = _get_old_directories(WINDOWS)
else:
dirs = _get_new_directories(WINDOWS)
dirs['data'] = _win_path_to_bytes(dirs['data'])
dirs['lbryum'] = _win_path_to_bytes(dirs['lbryum'])
dirs['download'] = _win_path_to_bytes(dirs['download'])
else:
platform = LINUX
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if os.path.isdir(_get_old_directories(LINUX)['data']) or \
os.path.isdir(_get_old_directories(LINUX)['lbryum']):
dirs = _get_old_directories(LINUX)
else:
dirs = _get_new_directories(LINUX)
default_data_dir = dirs['data']
default_lbryum_dir = dirs['lbryum']
default_download_dir = dirs['download']
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ICON_PATH = 'icons' if platform is WINDOWS else 'app.icns'
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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]
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def server_list_reverse(servers):
return ["%s:%s" % (server, port) for server, port in servers]
class Env(envparse.Env):
"""An Env parser that automatically namespaces the variables with LBRY"""
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def __init__(self, **schema):
self.original_schema = schema
my_schema = {
self._convert_key(key): self._convert_value(value)
for key, value in schema.items()
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}
envparse.Env.__init__(self, **my_schema)
def __call__(self, key, *args, **kwargs):
my_key = self._convert_key(key)
return super(Env, self).__call__(my_key, *args, **kwargs)
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@staticmethod
def _convert_key(key):
return ENV_NAMESPACE + key.upper()
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@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
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TYPE_DEFAULT = 'default'
TYPE_PERSISTED = 'persisted'
TYPE_ENV = 'env'
TYPE_CLI = 'cli'
TYPE_RUNTIME = 'runtime'
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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,
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'LOGGLY_TOKEN': 'BQEzZmMzLJHgAGxkBF00LGD0YGuyATVgAmqxAQEuAQZ2BQH4',
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'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')
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}
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ADJUSTABLE_SETTINGS = {
# 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
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'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),
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'cache_time': (int, 150),
'data_dir': (str, default_data_dir),
'data_rate': (float, .0001), # points/megabyte
'delete_blobs_on_remove': (bool, True),
'dht_node_port': (int, 4444),
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'download_directory': (str, default_download_dir),
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'download_timeout': (int, 180),
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'is_generous_host': (bool, True),
'announce_head_blobs_only': (bool, True),
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'concurrent_announcers': (int, DEFAULT_CONCURRENT_ANNOUNCERS),
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'known_dht_nodes': (list, DEFAULT_DHT_NODES, server_list, server_list_reverse),
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'lbryum_wallet_dir': (str, default_lbryum_dir),
'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),
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'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
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'reflector_servers': (list, [('reflector2.lbry.io', 5566)], server_list, server_list_reverse),
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'run_reflector_server': (bool, False),
'sd_download_timeout': (int, 3),
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'share_usage_data': (bool, True), # whether to share usage stats and diagnostic info with LBRY
'peer_search_timeout': (int, 3),
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'use_auth_http': (bool, False),
'use_upnp': (bool, True),
'use_keyring': (bool, False),
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'wallet': (str, LBRYUM_WALLET),
'blockchain_name': (str, 'lbrycrd_main'),
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'lbryum_servers': (list, [('lbryum8.lbry.io', 50001), ('lbryum9.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
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}
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class Config(object):
def __init__(self, fixed_defaults, adjustable_defaults, persisted_settings=None,
environment=None, cli_settings=None):
self._installation_id = None
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self._session_id = base58.b58encode(utils.generate_id())
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self._node_id = None
self._fixed_defaults = fixed_defaults
self._adjustable_defaults = adjustable_defaults
self._data = {
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TYPE_DEFAULT: {}, # defaults
TYPE_PERSISTED: {}, # stored settings from daemon_settings.yml (or from a db, etc)
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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.iteritems()})
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)
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def __repr__(self):
return self.get_current_settings_dict().__repr__()
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def __iter__(self):
for k in self._data[TYPE_DEFAULT].iterkeys():
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yield k
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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]
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@staticmethod
def _parse_environment(environment):
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env_settings = {}
if environment is not None:
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assert isinstance(environment, Env)
for opt in environment.original_schema:
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if environment(opt) is not None:
env_settings[opt] = environment(opt)
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return env_settings
def _assert_valid_data_type(self, data_type):
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if data_type not in self._data:
raise KeyError('{} in is not a valid data type'.format(data_type))
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def get_valid_setting_names(self):
return self._data[TYPE_DEFAULT].keys()
def _is_valid_setting(self, name):
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return name in self.get_valid_setting_names()
def _assert_valid_setting(self, name):
if not self._is_valid_setting(name):
raise KeyError('{} is not a valid setting'.format(name))
def _validate_settings(self, data):
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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('{} is not an editable setting'.format(name))
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):
raise NoSuchDirectoryError(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]
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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('{} is not a valid setting'.format(name))
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,)):
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for k, v in updated_settings.iteritems():
try:
self.set(k, v, data_types=data_types)
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except (KeyError, AssertionError):
pass
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def get_current_settings_dict(self):
current_settings = {}
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for key in self.get_valid_setting_names():
current_settings[key] = self.get(key)
return current_settings
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def get_adjustable_settings_dict(self):
return {
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key: val for key, val in self.get_current_settings_dict().iteritems()
if key in self._adjustable_defaults
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}
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def save_conf_file_settings(self):
if conf_file:
path = conf_file
else:
path = self.get_conf_filename()
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# reverse the conversions done after loading the settings from the conf
# file
rev = self._convert_conf_file_lists_reverse(self._data[TYPE_PERSISTED])
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ext = os.path.splitext(path)[1]
encoder = settings_encoders.get(ext, False)
assert encoder is not False, 'Unknown settings format %s' % ext
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with open(path, 'w') as settings_file:
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settings_file.write(encoder(rev))
@staticmethod
def _convert_conf_file_lists_reverse(converted):
rev = {}
for k in converted.iterkeys():
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
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@staticmethod
def _convert_conf_file_lists(decoded):
converted = {}
for k, v in decoded.iteritems():
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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()
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def load_conf_file_settings(self):
if conf_file:
path = conf_file
else:
path = self.get_conf_filename()
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ext = os.path.splitext(path)[1]
decoder = settings_decoders.get(ext, False)
assert decoder is not False, 'Unknown settings format %s' % ext
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try:
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))
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except (IOError, OSError) as err:
log.info('%s: Failed to update settings from %s', err, path)
#initialize members depending on config file
self.initialize_post_conf_load()
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def _fix_old_conf_file_settings(self, settings_dict):
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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:
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settings_dict['share_usage_data'] = settings_dict['upload_log']
del settings_dict['upload_log']
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if 'share_debug_info' in settings_dict:
settings_dict['share_usage_data'] = settings_dict['share_debug_info']
del settings_dict['share_debug_info']
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for key in settings_dict.keys():
if not self._is_valid_setting(key):
log.warning('Ignoring invalid conf file setting: %s', key)
del settings_dict[key]
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return settings_dict
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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'])
return self['data_dir']
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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'])
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def get_api_connection_string(self):
return 'http://%s:%i/%s' % (self['api_host'], self['api_port'], self['API_ADDRESS'])
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def get_ui_address(self):
return 'http://%s:%i' % (self['api_host'], self['api_port'])
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def get_db_revision_filename(self):
return os.path.join(self.ensure_data_dir(), self['DB_REVISION_FILE_NAME'])
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def get_conf_filename(self):
data_dir = self.ensure_data_dir()
yml_path = os.path.join(data_dir, 'daemon_settings.yml')
json_path = os.path.join(data_dir, 'daemon_settings.json')
if os.path.isfile(yml_path):
return yml_path
elif os.path.isfile(json_path):
return json_path
else:
return yml_path
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())
with open(install_id_filename, "w") as install_id_file:
install_id_file.write(self._installation_id)
return self._installation_id
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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())
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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))
return self._node_id
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def get_session_id(self):
return self._session_id
# type: Config
settings = None
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def get_default_env():
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env_defaults = {}
for k, v in ADJUSTABLE_SETTINGS.iteritems():
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])
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else:
env_defaults[k] = (v[0], None)
return Env(**env_defaults)
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def initialize_settings(load_conf_file=True):
global settings
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if settings is None:
settings = Config(FIXED_SETTINGS, ADJUSTABLE_SETTINGS,
environment=get_default_env())
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if load_conf_file:
settings.load_conf_file_settings()