102 lines
3.2 KiB
Python
102 lines
3.2 KiB
Python
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import functools
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import getpass
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import logging
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from typing import Callable, Optional, Type, cast
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import keyring
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from twine import exceptions
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from twine import utils
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logger = logging.getLogger(__name__)
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class CredentialInput:
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def __init__(
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self, username: Optional[str] = None, password: Optional[str] = None
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) -> None:
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self.username = username
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self.password = password
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class Resolver:
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def __init__(self, config: utils.RepositoryConfig, input: CredentialInput) -> None:
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self.config = config
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self.input = input
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@classmethod
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def choose(cls, interactive: bool) -> Type["Resolver"]:
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return cls if interactive else Private
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@property # type: ignore # https://github.com/python/mypy/issues/1362
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@functools.lru_cache()
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def username(self) -> Optional[str]:
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return utils.get_userpass_value(
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self.input.username,
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self.config,
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key="username",
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prompt_strategy=self.username_from_keyring_or_prompt,
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)
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@property # type: ignore # https://github.com/python/mypy/issues/1362
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@functools.lru_cache()
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def password(self) -> Optional[str]:
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return utils.get_userpass_value(
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self.input.password,
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self.config,
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key="password",
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prompt_strategy=self.password_from_keyring_or_prompt,
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)
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@property
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def system(self) -> Optional[str]:
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return self.config["repository"]
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def get_username_from_keyring(self) -> Optional[str]:
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try:
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system = cast(str, self.system)
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logger.info("Querying keyring for username")
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creds = keyring.get_credential(system, None)
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if creds:
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return cast(str, creds.username)
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except AttributeError:
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# To support keyring prior to 15.2
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pass
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except Exception as exc:
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logger.warning("Error getting username from keyring", exc_info=exc)
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return None
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def get_password_from_keyring(self) -> Optional[str]:
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try:
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system = cast(str, self.system)
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username = cast(str, self.username)
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logger.info("Querying keyring for password")
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return cast(str, keyring.get_password(system, username))
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except Exception as exc:
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logger.warning("Error getting password from keyring", exc_info=exc)
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return None
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def username_from_keyring_or_prompt(self) -> str:
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username = self.get_username_from_keyring()
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if username:
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logger.info("username set from keyring")
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return username
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return self.prompt("username", input)
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def password_from_keyring_or_prompt(self) -> str:
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password = self.get_password_from_keyring()
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if password:
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logger.info("password set from keyring")
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return password
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return self.prompt("password", getpass.getpass)
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def prompt(self, what: str, how: Callable[..., str]) -> str:
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return how(f"Enter your {what}: ")
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class Private(Resolver):
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def prompt(self, what: str, how: Optional[Callable[..., str]] = None) -> str:
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raise exceptions.NonInteractive(f"Credential not found for {what}.")
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