lbry-sdk/lbrynet/extras/cli.py
2019-01-07 21:56:05 -05:00

283 lines
9.8 KiB
Python

import sys
import os
import json
import asyncio
import argparse
import typing
# Set SSL_CERT_FILE env variable for Twisted SSL verification on Windows
# This needs to happen before anything else
if 'win' in sys.platform:
import certifi
os.environ['SSL_CERT_FILE'] = certifi.where()
from twisted.internet import asyncioreactor
if 'twisted.internet.reactor' not in sys.modules:
asyncioreactor.install()
else:
from twisted.internet import reactor
if not isinstance(reactor, asyncioreactor.AsyncioSelectorReactor) and getattr(sys, 'frozen', False):
# pyinstaller hooks install the default reactor before
# any of our code runs, see kivy for similar problem:
# https://github.com/kivy/kivy/issues/4182
del sys.modules['twisted.internet.reactor']
asyncioreactor.install()
from twisted.internet import reactor
import logging
from aiohttp.client_exceptions import ClientConnectorError
from requests.exceptions import ConnectionError
from docopt import docopt
from textwrap import dedent
from lbrynet import conf, log_support, __name__ as lbrynet_name
from lbrynet.utils import check_connection, json_dumps_pretty
from lbrynet.extras.daemon.Daemon import Daemon
from lbrynet.extras.daemon.DaemonConsole import main as daemon_console, LBRYAPIClient
from lbrynet.extras.system_info import get_platform
log = logging.getLogger(lbrynet_name)
optional_path_getter_type = typing.Optional[typing.Callable[[], str]]
def start_daemon(settings: typing.Optional[typing.Dict] = None,
console_output: typing.Optional[bool] = True, verbose: typing.Optional[typing.List[str]] = None,
data_dir: typing.Optional[str] = None, wallet_dir: typing.Optional[str] = None,
download_dir: typing.Optional[str] = None):
settings = settings or {}
conf.initialize_settings(data_dir=data_dir, wallet_dir=wallet_dir, download_dir=download_dir)
for k, v in settings.items():
conf.settings.update({k, v}, data_types=(conf.TYPE_CLI,))
log_support.configure_logging(conf.settings.get_log_filename(), console_output, verbose)
log_support.configure_loggly_handler()
log.debug('Final Settings: %s', conf.settings.get_current_settings_dict())
log.info("Starting lbrynet-daemon from command line")
if check_connection():
daemon = Daemon()
daemon.start_listening()
reactor.run()
else:
log.info("Not connected to internet, unable to start")
def start_daemon_with_cli_args(argv=None, data_dir: typing.Optional[str] = None,
wallet_dir: typing.Optional[str] = None, download_dir: typing.Optional[str] = None):
parser = argparse.ArgumentParser()
parser.add_argument(
"--http-auth", dest="useauth", action="store_true", default=False
)
parser.add_argument(
'--quiet', dest='quiet', action="store_true",
help='Disable all console output.'
)
parser.add_argument(
'--verbose', nargs="*",
help=('Enable debug output. Optionally specify loggers for which debug output '
'should selectively be applied.')
)
parser.add_argument(
'--version', action="store_true",
help='Show daemon version and quit'
)
args = parser.parse_args(argv)
settings = {}
if args.useauth:
settings['use_auth_http'] = True
verbose = None
if args.verbose:
verbose = args.verbose
console_output = not args.quiet
if args.version:
print(json_dumps_pretty(get_platform()))
return
return start_daemon(settings, console_output, verbose, data_dir, wallet_dir, download_dir)
async def execute_command(method, params, data_dir: typing.Optional[str] = None,
wallet_dir: typing.Optional[str] = None, download_dir: typing.Optional[str] = None):
# this check if the daemon is running or not
conf.initialize_settings(data_dir=data_dir, wallet_dir=wallet_dir, download_dir=download_dir)
api = None
try:
api = await LBRYAPIClient.get_client()
await api.status()
except (ClientConnectorError, ConnectionError):
if api:
await api.session.close()
print("Could not connect to daemon. Are you sure it's running?")
return 1
# this actually executes the method
resp = await api.call(method, params)
try:
await api.session.close()
print(json.dumps(resp["result"], indent=2))
except KeyError:
if resp["error"]["code"] == -32500:
print(json.dumps(resp["error"], indent=2))
else:
print(json.dumps(resp["error"]["message"], indent=2))
def print_help():
print(dedent("""
NAME
lbrynet - LBRY command line client.
USAGE
lbrynet [--data_dir=<blob and database directory>] [--wallet_dir=<wallet directory>]
[--download_dir=<downloads directory>] <command> [<args>]
EXAMPLES
lbrynet start # starts the daemon and listens for jsonrpc commands
lbrynet help # display this message
lbrynet help <command_name> # get help for a command(doesn't need the daemon to be running)
lbrynet commands # list available commands
lbrynet status # get the running status of the daemon
lbrynet resolve what # resolve a name
lbrynet --wallet_dir=~/wallet2 start # start the daemon using an alternative wallet directory
lbrynet --data_dir=~/lbry start # start the daemon using an alternative data directory
lbrynet --data_dir=~/lbry <command_name> # run a command on a daemon using an alternative data directory,
# which can contain a full daemon_settings.yml config file.
# Note: since the daemon is what runs the wallet and
# downloads files, only the --data_dir setting is needed when
# running commands. The wallet_dir and download_dir would only
# by used when starting the daemon.
"""))
def print_help_for_command(command):
fn = Daemon.callable_methods.get(command)
if fn:
print(dedent(fn.__doc__))
else:
print("Invalid command name")
def normalize_value(x, key=None):
if not isinstance(x, str):
return x
if key in ('uri', 'channel_name', 'name', 'file_name', 'download_directory'):
return x
if x.lower() == 'true':
return True
if x.lower() == 'false':
return False
if x.isdigit():
return int(x)
return x
def remove_brackets(key):
if key.startswith("<") and key.endswith(">"):
return str(key[1:-1])
return key
def set_kwargs(parsed_args):
kwargs = {}
for key, arg in parsed_args.items():
k = None
if arg is None:
continue
elif key.startswith("--") and remove_brackets(key[2:]) not in kwargs:
k = remove_brackets(key[2:])
elif remove_brackets(key) not in kwargs:
k = remove_brackets(key)
kwargs[k] = normalize_value(arg, k)
return kwargs
def main(argv=None):
argv = argv or sys.argv[1:]
if not argv:
print_help()
return 1
dir_args = {}
if len(argv) >= 2:
dir_arg_keys = [
'data_dir',
'wallet_dir',
'download_directory'
]
for arg in argv:
found_dir_arg = False
for key in dir_arg_keys:
if arg.startswith(f'--{key}='):
if key in dir_args:
print(f"Multiple values provided for '{key}' argument")
print_help()
return 1
dir_args[key] = os.path.expanduser(os.path.expandvars(arg.lstrip(f'--{key}=')))
found_dir_arg = True
if not found_dir_arg:
break
argv = argv[len(dir_args):]
data_dir = dir_args.get('data_dir')
wallet_dir = dir_args.get('wallet_dir')
download_dir = dir_args.get('download_directory')
for k, v in dir_args.items():
if not os.path.isdir(v):
print(f"'{data_dir}' is not a directory, cannot use it for {k}")
return 1
method, args = argv[0], argv[1:]
if method in ['help', '--help', '-h']:
if len(args) == 1:
print_help_for_command(args[0])
else:
print_help()
return 0
elif method in ['version', '--version', '-v']:
print("{lbrynet_name} {lbrynet_version}".format(
lbrynet_name=lbrynet_name, **get_platform()
))
return 0
elif method == 'start':
sys.exit(start_daemon_with_cli_args(args, data_dir, wallet_dir, download_dir))
elif method == 'console':
sys.exit(daemon_console())
elif method not in Daemon.callable_methods:
if method not in Daemon.deprecated_methods:
print(f'{method} is not a valid command.')
return 1
new_method = Daemon.deprecated_methods[method].new_command
if new_method is None:
print(f"{method} is permanently deprecated and does not have a replacement command.")
return 0
print(f"{method} is deprecated, using {new_method}.")
method = new_method
fn = Daemon.callable_methods[method]
parsed = docopt(fn.__doc__, args)
params = set_kwargs(parsed)
loop = asyncio.get_event_loop()
loop.run_until_complete(execute_command(method, params, data_dir, wallet_dir, download_dir))
return 0
if __name__ == "__main__":
sys.exit(main())