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o ;j~ � @ sr d Z ddlZddlZzddlZW n ey dZY nw dZG dd� de�Zddd�Zd d � Z d d � Z d d� Z dS )zJThe match_hostname() function from Python 3.3.3, essential when using SSL.� Nz3.5.0.1c @ s e Zd ZdS )�CertificateErrorN)�__name__� __module__� __qualname__� r r �_/opt/saltstack/salt/lib/python3.10/site-packages/pip/_vendor/urllib3/util/ssl_match_hostname.pyr s r � c C s� g }| sdS | � d�}|d }|dd� }|�d�}||kr&tdt| � ��|s0| �� |�� kS |dkr:|�d� n |�d �sD|�d �rM|�t�|�� n |�t�|�� d d �� |D ] }|�t�|�� q[t� d d � |� d tj �} | � |�S )zhMatching according to RFC 6125, section 6.4.3 http://tools.ietf.org/html/rfc6125#section-6.4.3 F�.r r N�*z,too many wildcards in certificate DNS name: z[^.]+zxn--z\*z[^.]*z\Az\.z\Z)�split�countr �repr�lower�append� startswith�re�escape�replace�compile�join� IGNORECASE�match) �dn�hostnameZ max_wildcardsZpats�partsZleftmost� remainder� wildcards�frag�patr r r �_dnsname_match s, � r c C s& t | t�rtjdk rt| ddd�} | S )N)� �ascii�strict)�encoding�errors)� isinstance�str�sys� version_infoZunicode)�objr r r � _to_unicodeO s r* c C s t �t| ��� �}||kS )z�Exact matching of IP addresses. RFC 6125 explicitly doesn't define an algorithm for this (section 1.7.2 - "Out of Scope"). )� ipaddress� ip_addressr* �rstrip)�ipname�host_ip�ipr r r �_ipaddress_matchV s r1 c C sf | st d��z t�t|��}W n tt fy d}Y n ty, tdu r)d}n� Y nw g }| �dd�}|D ]/\}}|dkrQ|du rKt||�rK dS |�|� q7|dkrf|durat ||�ra dS |�|� q7|s�| �dd�D ]}|D ]\}}|dkr�t||�r� dS |�|� qsqot |�d kr�t d |d � t t|��f ��t |�d kr�t d ||d f ��t d��)a) Verify that *cert* (in decoded format as returned by SSLSocket.getpeercert()) matches the *hostname*. RFC 2818 and RFC 6125 rules are followed, but IP addresses are not accepted for *hostname*. CertificateError is raised on failure. On success, the function returns nothing. ztempty or no certificate, match_hostname needs a SSL socket or SSL context with either CERT_OPTIONAL or CERT_REQUIREDN�subjectAltNamer �DNSz IP Address�subject� commonNamer z&hostname %r doesn't match either of %sz, z hostname %r doesn't match %rr z=no appropriate commonName or subjectAltName fields were found)� ValueErrorr+ r, r* � UnicodeError�AttributeError�getr r r1 �lenr r �mapr )�certr r/ �dnsnames�san�key�value�subr r r �match_hostnameb s\ � �� � �� �� �rB )r ) �__doc__r r' r+ � ImportError� __version__r6 r r r* r1 rB r r r r �<module> s � 6
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