Split cli package into topical files
This commit is contained in:
parent
51d8c1a378
commit
db83c99b95
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@ -1,7 +1,3 @@
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# Standard library imports
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from argparse import ArgumentParser as AP
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from functools import wraps
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#
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# The cli module must not import other parts of the application at the module
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# level. This is because most other modules depend on the config module. The
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@ -12,201 +8,5 @@ from functools import wraps
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# run after commandline parsing has already occurred.
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#
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#
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# These function wrappers are used to make the command_* methods accept an
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# ArgumentParser as a parameter, which it then configures with the given
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# argument and returns. This way, we can configure each command's subparser
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# in this module without having to write a separate function to configure it.
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#
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def add_argument(*args, **kwargs):
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"""Passes the given args and kwargs to subparser.add_argument"""
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def argument_adder(command):
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second_layer = command.__dict__.get('wrapper', False)
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@wraps(command)
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def augmented_command(cmd_args):
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if type(cmd_args) is AP:
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cmd_args.add_argument(*args, **kwargs)
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if type(cmd_args) is not AP or second_layer:
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command(cmd_args)
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augmented_command.__dict__['wrapper'] = True
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return augmented_command
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return argument_adder
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def no_argument(command):
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"""Noops for subparsers"""
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@wraps(command)
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def augmented_command(cmd_args):
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if type(cmd_args) is not AP:
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command(cmd_args)
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return augmented_command
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@add_argument("--update", action="store_true", help="Refresh an existing config directory")
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def command_init(args):
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"""Initialize a config directory at the directory given by --config-dir"""
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from collections import OrderedDict
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import fcntl
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import json
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import os
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import pkg_resources
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cfd = args.config_dir
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# Create the directory if it doesn't exist.
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if not os.path.isdir(cfd):
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os.mkdir(cfd)
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# The directory should be empty if we're not updating an existing one.
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if len(os.listdir(cfd)) > 0 and not args.update:
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print("Directory {} is not empty".format(cfd))
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return -1
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# Update or create global config.
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def_cfg = pkg_resources.resource_stream(__name__, "resources/default_config.json")
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if args.update and os.path.isfile(os.path.join(cfd, "config.json")):
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with open(os.path.join(cfd, "config.json"), 'r+', encoding='utf8') as cfg_file:
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fcntl.lockf(cfg_file, fcntl.LOCK_EX)
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old_cfg = json.load(cfg_file, object_pairs_hook=OrderedDict)
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new_cfg = json.load(def_cfg, object_pairs_hook=OrderedDict)
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merged = {}
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for key in new_cfg:
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merged[key] = old_cfg[key] if key in old_cfg else new_cfg[key]
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if key not in old_cfg:
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print("Added key '{}' to config".format(key))
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for key in old_cfg:
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if key not in new_cfg:
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print("Config contains unknown key '{}'".format(key))
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merged[key] = old_cfg[key]
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cfg_file.seek(0)
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json.dump(merged, cfg_file, allow_nan=False, indent='\t')
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cfg_file.truncate()
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fcntl.lockf(cfg_file, fcntl.LOCK_UN)
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else:
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with open(os.path.join(cfd, "config.json"), 'wb') as f:
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f.write(def_cfg.read())
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# Ensure pidfile exists.
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if not os.path.isfile(os.path.join(cfd, "pid")):
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with open(os.path.join(cfd, "pid"), 'w') as f:
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f.write(str(os.getpid()))
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# Ensure subdirs exist.
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if not os.path.isdir(os.path.join(cfd, "lexicon")):
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os.mkdir(os.path.join(cfd, "lexicon"))
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if not os.path.isdir(os.path.join(cfd, "user")):
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os.mkdir(os.path.join(cfd, "user"))
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if not os.path.isfile(os.path.join(cfd, 'user', 'index.json')):
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with open(os.path.join(cfd, 'user', 'index.json'), 'w') as f:
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json.dump({}, f)
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@no_argument
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def command_generate_secret(args):
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"""Generate a secret key for Flask"""
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import os
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import config
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secret_key = os.urandom(32)
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with config.json_rw("config.json") as cfg:
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cfg['secret_key'] = secret_key.hex()
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config.logger.info("Regenerated Flask secret key")
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@add_argument("-a", "--address", default="127.0.0.1")
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@add_argument("-p", "--port", default="5000")
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def command_run(args):
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"""Runs the default Flask development server"""
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import server
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import config
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if config.get("secret_key") is None:
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config.logger.error("Can't run server without a secret_key. Run generate-secret first")
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return -1
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server.app.run(host=args.address, port=args.port)
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@add_argument("--username", help="User's login handle")
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@add_argument("--displayname", help="User's publicly displayed name")
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@add_argument("--email", help="User's email")
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def command_user_add(args):
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"""Creates a user"""
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import json
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import user
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import config
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# Verify or query parameters
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if not args.username:
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args.username = input("username: ").strip()
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if not user.valid_username(args.username):
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config.logger.error("Invalid username: usernames may only contain alphanumeric characters, dashes, and underscores")
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return -1
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if user.get_user_by_username(args.username) is not None:
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config.logger.error("Invalid username: username is already taken")
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return -1
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if not args.displayname:
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args.displayname = args.username
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if not args.email:
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args.email = input("email: ").strip()
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if not user.valid_email(args.email):
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config.logger.error("Invalid email")
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return -1
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# Create user
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new_user, tmp_pw = user.create_user(args.username, args.displayname, args.email)
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with config.json_ro(new_user.config) as js:
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print(json.dumps(js, indent=2))
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print("Username: {}\nUser ID: {}\nPassword: {}".format(args.username, new_user.uid, tmp_pw))
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@add_argument("--id", help="id of user to delete")
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def command_user_delete(args):
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import os
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import config
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user_path = config.prepend('user', args.uid)
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if not os.path.isdir(user_path):
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config.logger.error("No user with that id")
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return -1
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else:
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os.remove(user_path)
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with config.json_rw('user', 'index.json') as j:
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if args.uid in j:
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del j[uid]
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@no_argument
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def command_user_list(args):
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"""Lists users"""
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import os
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import config
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user_dirs = os.listdir(config.prepend('user'))
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users = []
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for uid in user_dirs:
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if uid == "index.json": continue
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with config.json_ro('user', uid, 'config.json') as user:
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users.append(user)
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users.sort(key=lambda u: u['username'])
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for user in users:
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print("{0} {1} ({2})".format(user['uid'], user['displayname'], user['username']))
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@add_argument("--username", help="The user to change password for")
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def command_user_passwd(args):
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"""Set a user's password"""
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import getpass
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import os
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import config
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import user
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if not args.username:
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args.username = input("Username: ")
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uid = user.uid_from_username(args.username)
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if uid is None:
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config.logger.error("No user with username '{}'".format(args.username))
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return -1
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u = user.user_from_uid(uid)
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pw = getpass.getpass("Password: ")
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u.set_password(pw)
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@add_argument("--foo", action="store_true")
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def command_dump(args):
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"""Dumps the global config or the config for the given lexicon"""
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import json
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import config
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print(json.dumps(config.GLOBAL_CONFIG, indent=2))
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from cli.server import *
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from cli.user import *
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@ -0,0 +1,30 @@
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# Standard library imports
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from argparse import ArgumentParser as AP
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from functools import wraps
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# These function wrappers allow us to use the same function for executing a
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# command and for configuring it. This keeps command arg configuration close to
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# where the command is defined and allows the main parser to use the same
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# function to both set up and execute commands.
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def add_argument(*args, **kwargs):
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"""Passes the given args and kwargs to subparser.add_argument"""
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def argument_adder(command):
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second_layer = command.__dict__.get('wrapper', False)
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@wraps(command)
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def augmented_command(cmd_args):
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if type(cmd_args) is AP:
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cmd_args.add_argument(*args, **kwargs)
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if type(cmd_args) is not AP or second_layer:
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command(cmd_args)
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augmented_command.__dict__['wrapper'] = True
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return augmented_command
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return argument_adder
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def no_argument(command):
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"""Noops for subparsers"""
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@wraps(command)
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def augmented_command(cmd_args):
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if type(cmd_args) is not AP:
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command(cmd_args)
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return augmented_command
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@ -0,0 +1 @@
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from cli.helpers import add_argument, no_argument
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@ -0,0 +1,87 @@
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from cli.helpers import add_argument, no_argument
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@add_argument("--update", action="store_true", help="Refresh an existing config directory")
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def command_init(args):
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"""Initialize a config directory at the directory given by --config-dir"""
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from collections import OrderedDict
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import fcntl
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import json
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import os
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import pkg_resources
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cfd = args.config_dir
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# Create the directory if it doesn't exist.
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if not os.path.isdir(cfd):
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os.mkdir(cfd)
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# The directory should be empty if we're not updating an existing one.
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if len(os.listdir(cfd)) > 0 and not args.update:
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print("Directory {} is not empty".format(cfd))
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return -1
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# Update or create global config.
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def_cfg = pkg_resources.resource_stream(__name__, "resources/default_config.json")
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if args.update and os.path.isfile(os.path.join(cfd, "config.json")):
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with open(os.path.join(cfd, "config.json"), 'r+', encoding='utf8') as cfg_file:
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fcntl.lockf(cfg_file, fcntl.LOCK_EX)
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old_cfg = json.load(cfg_file, object_pairs_hook=OrderedDict)
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new_cfg = json.load(def_cfg, object_pairs_hook=OrderedDict)
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merged = {}
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for key in new_cfg:
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merged[key] = old_cfg[key] if key in old_cfg else new_cfg[key]
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if key not in old_cfg:
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print("Added key '{}' to config".format(key))
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for key in old_cfg:
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if key not in new_cfg:
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print("Config contains unknown key '{}'".format(key))
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merged[key] = old_cfg[key]
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cfg_file.seek(0)
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json.dump(merged, cfg_file, allow_nan=False, indent='\t')
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cfg_file.truncate()
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fcntl.lockf(cfg_file, fcntl.LOCK_UN)
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else:
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with open(os.path.join(cfd, "config.json"), 'wb') as f:
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f.write(def_cfg.read())
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# Ensure pidfile exists.
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if not os.path.isfile(os.path.join(cfd, "pid")):
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with open(os.path.join(cfd, "pid"), 'w') as f:
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f.write(str(os.getpid()))
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# Ensure subdirs exist.
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if not os.path.isdir(os.path.join(cfd, "lexicon")):
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os.mkdir(os.path.join(cfd, "lexicon"))
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if not os.path.isdir(os.path.join(cfd, "user")):
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os.mkdir(os.path.join(cfd, "user"))
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if not os.path.isfile(os.path.join(cfd, 'user', 'index.json')):
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with open(os.path.join(cfd, 'user', 'index.json'), 'w') as f:
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json.dump({}, f)
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@no_argument
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def command_generate_secret(args):
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"""Generate a secret key for Flask"""
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import os
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import config
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secret_key = os.urandom(32)
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with config.json_rw("config.json") as cfg:
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cfg['secret_key'] = secret_key.hex()
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config.logger.info("Regenerated Flask secret key")
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@add_argument("-a", "--address", default="127.0.0.1")
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@add_argument("-p", "--port", default="5000")
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def command_run(args):
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"""Runs the default Flask development server"""
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import server
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import config
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if config.get("secret_key") is None:
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config.logger.error("Can't run server without a secret_key. Run generate-secret first")
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return -1
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server.app.run(host=args.address, port=args.port)
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@add_argument("--foo", action="store_true")
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def command_dump(args):
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"""Dumps the global config or the config for the given lexicon"""
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import json
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import config
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print(json.dumps(config.GLOBAL_CONFIG, indent=2))
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@ -0,0 +1,85 @@
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from cli.helpers import add_argument, no_argument
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@add_argument("--username", help="User's login handle")
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@add_argument("--displayname", help="User's publicly displayed name")
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@add_argument("--email", help="User's email")
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def command_user_add(args):
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"""Creates a user"""
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import json
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import user
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import config
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# Verify or query parameters
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if not args.username:
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args.username = input("username: ").strip()
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if not user.valid_username(args.username):
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config.logger.error("Invalid username: usernames may only contain alphanumeric characters, dashes, and underscores")
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return -1
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if user.get_user_by_username(args.username) is not None:
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config.logger.error("Invalid username: username is already taken")
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return -1
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if not args.displayname:
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args.displayname = args.username
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if not args.email:
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args.email = input("email: ").strip()
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if not user.valid_email(args.email):
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config.logger.error("Invalid email")
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return -1
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# Create user
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new_user, tmp_pw = user.create_user(args.username, args.displayname, args.email)
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with config.json_ro(new_user.config) as js:
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print(json.dumps(js, indent=2))
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print("Username: {}\nUser ID: {}\nPassword: {}".format(args.username, new_user.uid, tmp_pw))
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@add_argument("--id", help="id of user to delete")
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def command_user_delete(args):
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import os
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import config
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user_path = config.prepend('user', args.uid)
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if not os.path.isdir(user_path):
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config.logger.error("No user with that id")
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return -1
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else:
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os.remove(user_path)
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with config.json_rw('user', 'index.json') as j:
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if args.uid in j:
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del j[uid]
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@no_argument
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def command_user_list(args):
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"""Lists users"""
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import os
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import config
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user_dirs = os.listdir(config.prepend('user'))
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users = []
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for uid in user_dirs:
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if uid == "index.json": continue
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with config.json_ro('user', uid, 'config.json') as user:
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users.append(user)
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users.sort(key=lambda u: u['username'])
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for user in users:
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print("{0} {1} ({2})".format(user['uid'], user['displayname'], user['username']))
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@add_argument("--username", help="The user to change password for")
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def command_user_passwd(args):
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"""Set a user's password"""
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import getpass
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import os
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import config
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import user
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if not args.username:
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args.username = input("Username: ")
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uid = user.uid_from_username(args.username)
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if uid is None:
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config.logger.error("No user with username '{}'".format(args.username))
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return -1
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u = user.user_from_uid(uid)
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pw = getpass.getpass("Password: ")
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u.set_password(pw)
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