twisted.conch.checkers
module documentationtwisted.conch
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Provide ICredentialsChecker
implementations to be used in Conch protocols.
Function | verifyCryptedPassword | Check that the password, when crypted, matches the stored crypted password. |
Class | UNIXPasswordDatabase | A checker which validates users out of the UNIX password databases, or databases of a compatible format. |
Class | SSHPublicKeyDatabase | Checker that authenticates SSH public keys, based on public keys listed in authorized_keys and authorized_keys2 files in user .ssh/ directories. |
Class | SSHProtocolChecker | SSHProtocolChecker is a checker that requires multiple authentications to succeed. To add a checker, call my registerChecker method with the checker and the interface. |
Interface | IAuthorizedKeysDB | An object that provides valid authorized ssh keys mapped to usernames. |
Function | readAuthorizedKeyFile | Reads keys from an authorized keys file. Any non-comment line that cannot be parsed as a key will be ignored, although that particular line will be logged. |
Class | InMemorySSHKeyDB | Object that provides SSH public keys based on a dictionary of usernames
mapped to twisted.conch.ssh.keys.Key s. |
Class | UNIXAuthorizedKeysFiles | No summary |
Class | SSHPublicKeyChecker | Checker that authenticates SSH public keys, based on public keys listed in authorized_keys and authorized_keys2 files in user .ssh/ directories. |
Function | _pwdGetByName | Look up a user in the /etc/passwd database using the pwd module. If the pwd module is not available, return None. |
Function | _shadowGetByName | Look up a user in the /etc/shadow database using the spwd module. If it
is not available, return None . |
Function | _keysFromFilepaths | Helper function that turns an iterable of filepaths into a generator of keys. If any file cannot be read, a message is logged but it is otherwise ignored. |
Look up a user in the /etc/passwd database using the pwd module. If the pwd module is not available, return None.
Parameters | username | the username of the user to return the passwd database information for. (type: str ) |
Reads keys from an authorized keys file. Any non-comment line that cannot be parsed as a key will be ignored, although that particular line will be logged.
Parameters | fileobj | something from which to read lines which can be parsed as keys (type: file -like
object) |
parseKey | a callable that takes a string and returns a twisted.conch.ssh.keys.Key ,
mainly to be used for testing. The default is twisted.conch.ssh.keys.Key.fromString . (type: callable ) | |
Returns | an iterable of twisted.conch.ssh.keys.Key (type: iterable) | |
Present Since | 15.0 |
Helper function that turns an iterable of filepaths into a generator of keys. If any file cannot be read, a message is logged but it is otherwise ignored.
Parameters | filepaths | iterable of twisted.python.filepath.FilePath . (type: iterable) |
parseKey | a callable that takes a string and returns a twisted.conch.ssh.keys.Key (type: callable ) | |
Returns | generator of twisted.conch.ssh.keys.Key (type: generator) | |
Present Since | 15.0 |