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a �+�b� � @ sR d dl mZ d dlZd dlZd dlZd dlZddlmZ ddlm Z ddl m Z ddl m Z mZmZmZ ddlmZmZmZ h d �Ze ed d �Ze� Ze ed e�ed ��r�e�d� e ede�ed��r�e�d� e ede�ed��r�e�d� dd� Zdd� Zd)dd�Z d*dd �Z G d d � d e �Z d+d d �Z d!d"� Z!d#d$� Z"d%d&� Z#d'd(� Z$dS ),� )�absolute_importN� )�_)�getattr)�hex)�encoding�error�pycompat�util)�hashutil� resourceutil� stringutil> � tls1.2� tls1.0� tls1.1ZHAS_SNIFZ HAS_TLSv1�PROTOCOL_TLSv1r Z HAS_TLSv1_1�PROTOCOL_TLSv1_1r Z HAS_TLSv1_2�PROTOCOL_TLSv1_2r c C s� t �|�}dg ddddddd�}dd� }tdh s6J �d}d }| �d ||�}|||� d | }| �d ||�}|||� | jr�d}||d < | �d d �}| �d d | |�}||d < | �d d| �} | D ]^} | �d�s�tjt d�|| f t d�d��| � dd�\} } | � dd�� � } |d � | | f� q�| �d|�D ]0} | � dd�� � } |d � d| f� d|d< �q.|d �r~tj|d< d|d< n"| j�r�d|d < tj|d< d|d< | �d d ��r�d|d< | �d d | �} |d �r�| �r�| �t d �| � |d du �r�| �r:t�| �} tj�| ��s0t�t d!�d"|f | f ��| |d#< nl| �d$d%�} | �rxt�| �} tj�| ��s�t�t d&�| ��n&|d �r�t| �} | �r�| �d'| � | |d#< | �s�|d �r�tj|d< n tj|d< |d du�s�J �|S )(zhObtain security settings for a hostname. Returns a dict of settings relevant to that hostname. TNF)� allowloaddefaultcerts� certfingerprints� cafile� disablecertverification� legacyfingerprint� minimumprotocol� verifymode� ciphersc S s8 | t vr4tjtd�|| f td�d�tt �� d��d S )Ns- unsupported protocol from hostsecurity.%s: %ss valid protocols: %s� ��hint)�configprotocolsr �Abortr �join�sorted)�protocol�key� r% �7/usr/lib64/python3.9/site-packages/mercurial/sslutil.py�validateprotocolZ s � ��z'_hostsettings.<locals>.validateprotocolr r r � hostsecuritys %s:minimumprotocolr s %s:cipherss %s:fingerprints)s sha1:s sha256:s sha512:s invalid fingerprint for %s: %ss0 must begin with "sha1:", "sha256:", or "sha512:"r � :r � r s hostfingerprints� sha1r r r r � devels disableloaddefaultcertss %s:verifycertsfiless (hostsecurity.%s:verifycertsfile ignored when host fingerprints defined; using host fingerprints for verification) s' path specified by %s does not exist: %ss hostsecurity.%s:verifycertsfiler s webs cacertss could not find web.cacerts: %ss using %s for CA file )r �bytesurl�supportedprotocols�configZinsecureconnectionsZ configlist� startswithr r r �split�replace�lower�append�ssl� CERT_NONEZ configbool�warnr Z expandpath�os�path�exists�_defaultcacerts�debug� CERT_REQUIRED) �ui�hostnameZ bhostname�sr' Zdefaultminimumprotocolr$ �minimumprotocolZciphersZ fingerprints� fingerprintZalg�cafiler% r% r& � _hostsettings= s� � � � ��� ��� � rD c C sz | t vrtd| ��tjtjB }| dkr*n<| dkr>|tjO }n(| dkrX|tjtjB O }nt�t d���|t tdd�O }|S )z8Return SSLContext options common to servers and clients.s protocol value not supported: %sr r r s this should not happenZOP_NO_COMPRESSIONr ) r � ValueErrorr5 Z OP_NO_SSLv2Z OP_NO_SSLv3Z OP_NO_TLSv1Z OP_NO_TLSv1_1r r r r )rA �optionsr% r% r& �commonssloptions� s rG c s� |st �td���dtjv rfz,ddl}|�t�tjd �� �� d� W n t yd �� d� Y n0 �� fD ]8}|rnt j � |�snt jtd�|t�|�f td�d ��qnt�|�}t�tj�}| jt|d �O _|d |_|d �rXz|�t�|d �� W nV tj�yV } z:t jtd �t�| jd � td�|d d ��W Y d} ~ n d} ~ 0 0 � du�r�� ��fdd�} |� � �| � |d du�r z|j |d d� W nv tj�y } zZt | j�dk�r�| jd } n | jd } t jtd�|d t�| �f td�d ��W Y d} ~ n d} ~ 0 0 d} n |d �r8|� � d} nd} z|j | |d�} W �nV tj�y� } �z8z2| �r�|d tj!k�r�|�"� �s���#td�� W n tj�y� Y n0 t$�%| d��r�| j&d k�rn|d d k�r&t'd hk�r ��#td �t�|�d �(t)t'��f � n��#td �t�|� � nF��#td!�|d t�|�f � ��#td"�t�|� � ��#td#�� n"| j&d$k�r�tj*�r���#td%�� � W Y d} ~ n d} ~ 0 0 | �+� �s�t �,td&���| ||�d'�| _-| S )(a� Add SSL/TLS to a socket. This is a glorified wrapper for ``ssl.wrap_socket()``. It makes sane choices based on what security options are available. In addition to the arguments supported by ``ssl.wrap_socket``, we allow the following additional arguments: * serverhostname - The expected hostname of the remote server. If the server (and client) support SNI, this tells the server which certificate to use. s# serverhostname argument is requireds SSLKEYLOGFILEr Ns8 sslkeylog enabled by SSLKEYLOGFILE environment variable s? sslkeylog module missing, but SSLKEYLOGFILE set in environment s: certificate file (%s) does not exist; cannot connect to %ss: restore missing file or fix references in Mercurial configr r r r s could not set ciphers: %ss# change cipher string (%s) in configc s �p� } �� td�| d�S )Ns passphrase for %s: r* )Zgetpassr )�f��certfile�keyfiler> r% r& �passwordM s z wrapsocket.<locals>.passwordr �rC r s error loading CA file %s: %ss file is empty or malformed?Tr F)Zserver_hostnames� (an attempt was made to load CA certificates but none were loaded; see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this error) s reasonZUNSUPPORTED_PROTOCOLr s� (could not communicate with %s using security protocols %s; if you are using a modern Mercurial version, consider contacting the operator of this server; see https://mercurial-scm.org/wiki/SecureConnections for more info) � , s� (could not communicate with %s using TLS 1.0; the likely cause of this is the server no longer supports TLS 1.0 because it has known security vulnerabilities; see https://mercurial-scm.org/wiki/SecureConnections for more info) s� (could not negotiate a common security protocol (%s+) with %s; the likely cause is Mercurial is configured to be more secure than the server can support) s� (consider contacting the operator of this server and ask them to support modern TLS protocol versions; or, set hostsecurity.%s:minimumprotocol=tls1.0 to allow use of legacy, less secure protocols when communicating with this server) sE (see https://mercurial-scm.org/wiki/SecureConnections for more info) ZCERTIFICATE_VERIFY_FAILEDsR (the full certificate chain may not be available locally; see "hg help debugssl") s ssl connection failed)� caloaded� hostname� settings� ui).r r r r �environ� sslkeylogZ set_keylogr �fsdecodeZ warnnoi18n� ImportErrorr8 r9 r: r- rD r5 � SSLContext�PROTOCOL_SSLv23rF rG � verify_mode� set_ciphersZsysstrZSSLErrorr � forcebytestr�args�load_cert_chain�load_verify_locations�lenZload_default_certs� wrap_socketr= Z get_ca_certsr7 r � safehasattr�reasonr. r! r" Z iswindowsZcipher� SecurityError�_hgstate)�sockrK rJ r> ZserverhostnamerT rH �settings� sslcontext�erL �msgZcaloadedZ sslsocketr% rI r& � wrapsocket s �� � ��� ��� �� � ���� � ���������� ��� ���� �rj c C s� |||fD ]&}|r t j�|�s t�td�| ��q tj}td�}|� dd�} | dkrrdt vrjt�td���tj }nb| dkr�dt vr�t�td���tj }n<| dkr�dt vr�t�td ���tj }n| r�t�td �| ��t�|�} | j|O _| jttd d �O _| jttd d �O _t�td��rH| jttdd �O _| �tj� |�rXtj| _ntj| _|�sl|�rz| j||d� |�r�| j|d� | j| dd�S )a� Wrap a socket for use by servers. ``certfile`` and ``keyfile`` specify the files containing the certificate's public and private keys, respectively. Both keys can be defined in the same file via ``certfile`` (the private key must come first in the file). ``cafile`` defines the path to certificate authorities. ``requireclientcert`` specifies whether to require client certificates. Typically ``cafile`` is only defined if ``requireclientcert`` is true. s/ referenced certificate file (%s) does not existr r, s serverexactprotocols$ TLS 1.0 not supported by this Pythonr s$ TLS 1.1 not supported by this Pythonr s$ TLS 1.2 not supported by this Pythons) invalid value for serverexactprotocol: %sZOP_SINGLE_DH_USEr ZOP_SINGLE_ECDH_USEs _RESTRICTED_SERVER_CIPHERSZOP_CIPHER_SERVER_PREFERENCE)rJ rK rM T)Z server_side)r8 r9 r: r r r r5 rX rG r/ r. r r r rW rF r r ra rZ Z_RESTRICTED_SERVER_CIPHERSr= rY r6 r] r^ r` ) re r> rJ rK rC ZrequireclientcertrH r# rF Z exactprotocolrg r% r% r& �wrapserversocket� sN � � rk c @ s e Zd ZdZdS )� wildcarderrorz2Represents an error parsing wildcards in DNS name.N)�__name__� __module__� __qualname__�__doc__r% r% r% r& rl : s rl c C s g }| s dS t �| �} t �|�}| �d�}|d }|dd� }|�d�}||kr`ttd�| ��|st| �� |�� kS |dkr�|�d� n>|�d �s�|�d �r�|�t � |�� n|�t � |�� d d �� |D ]}|�t � |�� q�t � d d �|� d t j�} | �|�duS )z�Match DNS names according RFC 6125 section 6.4.3. This code is effectively copied from CPython's ssl._dnsname_match. Returns a bool indicating whether the expected hostname matches the value in ``dn``. F� .r r N� *s. too many wildcards in certificate DNS name: %ss [^.]+s xn--s \*s [^.]*s \As \.s \Z)r r- r1 �countrl r r3 r4 r0 r Zreescaper2 �re�compiler! � IGNORECASE�match) Zdnr? Z maxwildcardsZpats�piecesZleftmostZ remainderZ wildcards�frag�patr% r% r& � _dnsnamematch> s0 � r{ c C s� | s t d�S g }| �dg �}|D ]j\}}|dkr zt||�rDW dS W n8 ty~ } z t�|jd �W Y d}~ S d}~0 0 |�|� q |�sP| �dg �D ]�}|D ]�\}}|dkr�z|�d�}W n" t y� t d � Y S 0 zt||��r W dS W n> t�y@ } z$t�|jd �W Y d}~ S d}~0 0 |�|� q�q�d d � |D �}t |�d k�r~t d �d� |� S t |�d k�r�t d �|d S t d�S dS )z�Verify that cert (in socket.getpeercert() format) matches hostname. CRLs is not handled. Returns error message if any problems are found and None on success. s no certificate receivedZsubjectAltNameZDNSNr ZsubjectZ commonName�asciis IDN in certificate not supportedc S s g | ]}t �|��qS r% )r r- )�.0�dr% r% r& � <listcomp>� r* z _verifycert.<locals>.<listcomp>r s certificate is for %srN s4 no commonName or subjectAltName found in certificate) r �getr{ rl r r[ r\ r4 �encode�UnicodeEncodeErrorr_ r! )Zcertr? ZdnsnamesZsanr$ �valuerh �subr% r% r& � _verifycertr s@ * .r� c C s> t jrt�� st jsdS tj�t j��� } | � d�p<| � d�S )a@ return true if this seems to be a pure Apple Python that * is unfrozen and presumably has the whole mercurial module in the file system * presumably is an Apple Python that uses Apple OpenSSL which has patches for using system certificate store CAs in addition to the provided cacerts file Fs /usr/bin/pythons, /system/library/frameworks/python.framework/) r Zisdarwinr Z mainfrozenZ sysexecutabler8 r9 �realpathr3 r0 )Zexer% r% r& �_plainapplepython� s ����r� c C s� z6ddl }|�� }tj�|�r4| �d� t�|�W S W n tt fyL Y n0 t � r�tj� tj� t�t ��d�}tj�|�r�|S dS )a� return path to default CA certificates or None. It is assumed this function is called when the returned certificates file will actually be used to validate connections. Therefore this function may print warnings or debug messages assuming this usage. We don't print a message when the Python is able to load default CA certs because this scenario is detected at socket connect time. r Ns# using ca certificates from certifi s dummycert.pem)�certifi�wherer8 r9 r: r< r �fsencoderV �AttributeErrorr� r! �dirname�__file__)r> r� ZcertsZ dummycertr% r% r& r; � s � r; c C s | j d }t�|�}| j d }| j d }z| �d�}| �� }W n$ tyb t�td�| ��Y n0 |szt�td�| ��|d r�|�td�| � d S t t � |�� � �t t �|�� � �t t �|�� � �d �}d d � }d ||d � } |d �r�|d D ]X\} } || �� | kr�|�d|| || �f � |d �rJ|�td�||| f � d S q�|d �rnd} ||d �} nd} d| ||| �f } tjtd�|| f td�| d��| j d �s�tjtd�| td �|| f d��t||�}|�r tjtd �||f td �|| f d��d S ) zxValidate a socket meets security requirements. The passed socket must have been created with ``wrapsocket()``. rP rR rQ Ts %s ssl connection errors- %s certificate error: no certificate receivedr s� warning: connection security to %s is disabled per current settings; communication is susceptible to eavesdropping and tampering N)r+ � sha256s sha512c s$ d� � fdd�tdt� �d�D ��S )Nr) c s g | ]}� ||d � �qS )� r% )r} �x�r@ r% r& r r* z:validatesocket.<locals>.fmtfingerprint.<locals>.<listcomp>r r� )r! �ranger_ r� r% r� r& �fmtfingerprint s z&validatesocket.<locals>.fmtfingerprints sha256:%sr� r s) %s certificate matched fingerprint %s:%s r s� (SHA-1 fingerprint for %s found in legacy [hostfingerprints] section; if you trust this fingerprint, remove the old SHA-1 fingerprint from [hostfingerprints] and add the following entry to the new [hostsecurity] section: %s:fingerprints=%s) s hostfingerprintr+ r( s %s:%ss0 certificate for %s has unexpected fingerprint %ss check %s configurationr rO sP unable to verify security of %s (no loaded CA certificates); refusing to connects� see https://mercurial-scm.org/wiki/SecureConnections for how to configure Mercurial to avoid this error or set hostsecurity.%s:fingerprints=%s to trust this servers %s certificate error: %ss^ set hostsecurity.%s:certfingerprints=%s config setting or use --insecure to connect insecurely)rd r r- Z getpeercertr� r rc r r7 r r Zsha1�digest�hashlibZsha256Zsha512r3 r< r� )re Zshost�hostr> rf ZpeercertZ peercert2Zpeerfingerprintsr� Znicefingerprint�hashrB �section�niceri r% r% r& �validatesocket� s� ����� �� ��� � � ����� ���r� )N)NNNF)r )%Z __future__r r� r8 rt r5 Zi18nr r r Znoder � r r r Zutilsr r r r Zhassni�setr. ra �addrD rG rj rk � Exceptionrl r{ r� r� r; r� r% r% r% r& �<module> s> / h � P 43#