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python38
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paramiko
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Editing: util.cpython-38.pyc
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This specific algorithm is used for encrypting/decrypting private key files. :param function hash_alg: A function which creates a new hash object, such as ``hashlib.sha256``. :param salt: data to salt the hash with. :type bytes salt: Hash salt bytes. :param str key: human-entered password or passphrase. :param int nbytes: number of bytes to generate. :return: Key data, as `bytes`. r Nr )r r �updater: �digest�min)Zhash_alg�salt�key�nbytesZkeydatarF Zhash_obj�sizer r r �generate_key_bytes� s rL c C s ddl m} || �S )a� Read a file of known SSH host keys, in the format used by openssh, and return a compound dict of ``hostname -> keytype ->`` `PKey <paramiko.pkey.PKey>`. The hostname may be an IP address or DNS name. The keytype will be either ``"ssh-rsa"`` or ``"ssh-dss"``. This type of file unfortunately doesn't exist on Windows, but on posix, it will usually be stored in ``os.path.expanduser("~/.ssh/known_hosts")``. Since 1.5.3, this is just a wrapper around `.HostKeys`. :param str filename: name of the file to read host keys from :return: nested dict of `.PKey` objects, indexed by hostname and then keytype r )�HostKeys)Zparamiko.hostkeysrM )�filenamerM r r r �load_host_keys� s rO c C s t � }|�| � |S )z� Provided only as a backward-compatible wrapper around `.SSHConfig`. .. deprecated:: 2.7 Use `SSHConfig.from_file` instead. )r �parse)Zfile_obj�configr r r �parse_ssh_config� s rR c C s |� | �S )zM Provided only as a backward-compatible wrapper around `.SSHConfig`. )�lookup)�hostnamerQ r r r �lookup_ssh_host_config� s rU c C s| dd| }}}dd| }}}|dkrh|| }|||| }}|||| }}|||| }}q |dk rx||7 }|S )Nr r r ) r, �m�u1�u2�u3�v1�v2Zv3�qr r r � mod_inverse� s r] c C sF zt jW S tk r@ t� td7 att _W 5 Q R X t j Y S X d S )Nr )�_g_thread_data�idr= �_g_thread_lock�_g_thread_counterr r r r � get_thread_id� s rb c C sf t �d�}t|j�dkr dS |�|� t| d�}t �|�}d}|d7 }|�t �|d�� |� |� dS )zKsend paramiko logs to a logfile, if they're not already going somewhereZparamikor N�az>%(levelname)-.3s [%(asctime)s.%(msecs)03d] thr=%(_threadid)-3dz %(name)s: %(message)sz%Y%m%d-%H:%M:%S) �logging� getLoggerr �handlers�setLevel�open� StreamHandler� setFormatter� Formatter� addHandler)rN �level�logger�f�handler�frmr r r � log_to_file� s rr c @ s e Zd Zdd� ZdS )�PFilterc C s t � |_dS )NT)rb Z _threadid)�self�recordr r r �filter s zPFilter.filterN)�__name__� __module__� __qualname__rv r r r r rs s rs c C s t �| �}|�t� |S �N)rd re � addFilter�_pfilter)�namern r r r � get_logger s r~ c C sN t | �t |�krdS d}tt | ��D ] }|t| | �t|| �A O }q$|dkS )NFr )r r r )rc r: �resr r r r �constant_time_bytes_eq s r� c @ s e Zd Zdd� Zdd� ZdS )�ClosingContextManagerc C s | S rz r )rt r r r � __enter__ s z ClosingContextManager.__enter__c C s | � � d S rz )�close)rt �type�valuer? r r r �__exit__! s z ClosingContextManager.__exit__N)rw rx ry r� r� r r r r r� s r� c C s t | t||��S rz )�maxrG )�minimum�val�maximumr r r � clamp_value% s r� c C sP z t | �W S tk rJ z| �� W Y S tk rD | Y Y S X Y nX dS )z: Coerce to bytes if possible or return unchanged. N)r: � TypeError�asbytesr= )r r r r r� ) s r� �utf8c C s8 t | t�r| S t | t�r"| �|�S tdt| �� ���dS )z cast unicode or bytes to bytes� Expected unicode or bytes, got N)� isinstancer �str�encoder� r� �r �encodingr r r r: ? s r: c C s8 t | t�r| �|�S t | t�r"| S tdt| �� ���dS )z cast bytes or unicode to unicoder� N)r� r �decoder� r� r� r� r r r �uJ s r� )F)T)r" )r� )r� )+�__doc__rA r r? � threadingrd Zparamiko.commonr r r r r r Zparamiko.configr r r! r- r* r; r< rD rL rO rR rU r] �localr^ ra �Lockr` rb rr rs r| r~ r� r� r� r� r: r� r r r r �<module> sB
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