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편집 파일: asyncquery.cpython-39.pyc
a �M�e�h � @ sf d Z ddlZddlZddlZddlZddlZddlmZmZm Z m Z m Z ddl Z ddlZ ddlZ ddlZ ddlZ ddlZ ddlZ ddlZ ddlZ ddlZ ddlmZ ddlmZmZm Z m Z m Z m Z m Z m!Z!m"Z"m#Z# e"r�ddl$Z$e j%j&Z'dd� Z(d6dd �Z)d7e j*j+e e j,j-e.f ee e/ e e0e/f d �d d �Z1d8e j*j+e e e e/ e2e2e ee j3j4e j5j6f e e. e2e2e2e e j,j- ed� dd�Z7d9e j,j-e8e e/ e0e e8 e0e2e2e2e2e e j*j+ e e j*j9 e2e j,j-d�dd�Z:d:e j,j-e8e e/ e0e e8 e0e2e2e2e e j*j+ e e j*j; e e j*j9 e2e e j,j-e2f d�dd�Z<d;e j*j;e e j,j-e.f e e/ e e0e/f d�dd�Z=d d � Z>d<e j*j;e e/ e2e ee j3j4e j5j6f e e. e2e e j,j-e/f d �d d �Z?d=e j,j-e8e e/ e0e e8 e0e2e2e e j*j; e e j*j9 e j,j-d!� d"d#�Z@d>e j,j-e8e e/ e0e e8 e0e2e2e e j*j; e e j*j9 e e#jA e e8 e e2e8f e j,j-d&�d'd(�ZBdd)ddd d dd*d%d%ddejCf e j,j-e8e e/ e0e e8 e0e2e2e d+ e8e2e e2e8f e e8 e d, e e0 e j,j-d-�d.d/�ZDdddddde jEdfe8e jFjGe e j,j- e0e e/ e e/ e e8 e0e e e j*j9 dd0� d1d2�ZHd?e j,j-e8e e/ e0e e8 e0e2e2e e jIjJ e e2e8f e e j*j9 e e8 e j,j-d3� d4d5�ZIdS )@zTalk to a DNS server.� N)�Any�Dict�Optional�Tuple�Union)� NullContext) � BadResponse�NoDOH�NoDOQ�UDPMode�_compute_times�_make_dot_ssl_context�_matches_destination� _remaining�have_doh�sslc C sN |s|rF|d u r>| t jkr d}n | t jkr0d}ntd| � ���||fS d S d S )Nz0.0.0.0z::zunknown address family )�socket�AF_INET�AF_INET6�NotImplementedError)�afZaddress�port� r �2/usr/lib/python3.9/site-packages/dns/asyncquery.py� _source_tuple: s r c C s* | d ur"|st � � }t| | d�S d S d S )Nr )�time�max)� expirationZnowr r r �_timeoutJ s r )�sock�what� destinationr �returnc � s@ t |tjj�r|�� }t�� }| �||t||��I dH }||fS )a� Send a DNS message to the specified UDP socket. *sock*, a ``dns.asyncbackend.DatagramSocket``. *what*, a ``bytes`` or ``dns.message.Message``, the message to send. *destination*, a destination tuple appropriate for the address family of the socket, specifying where to send the query. *expiration*, a ``float`` or ``None``, the absolute time at which a timeout exception should be raised. If ``None``, no timeout will occur. The expiration value is meaningless for the asyncio backend, as asyncio's transport sendto() never blocks. Returns an ``(int, float)`` tuple of bytes sent and the sent time. N)� isinstance�dns�message�Message�to_wirer �sendtor )r r r! r � sent_time�nr r r �send_udpS s r+ F� ) r r! r �ignore_unexpected�one_rr_per_rrset�keyring� request_mac�ignore_trailing�raise_on_truncation� ignore_errors�queryr" c � s� d} | � dt|��I dH \} } t| j| ||�s0qt�� } z tjj| |||||d�}W nn tjjy� } z6| r�| dur�| � |�� �s�W Y d}~qn� W Y d}~n&d}~0 t y� | r�Y qn� Y n0 | r�| dur�| � |�s�q|| | fS )aj Read a DNS message from a UDP socket. *sock*, a ``dns.asyncbackend.DatagramSocket``. See :py:func:`dns.query.receive_udp()` for the documentation of the other parameters, and exceptions. Returns a ``(dns.message.Message, float, tuple)`` tuple of the received message, the received time, and the address where the message arrived from. r, � N)r/ r0 r. r1 r2 ) �recvfromr r �familyr r$ r% � from_wire� Truncated� is_response� Exception)r r! r r- r. r/ r0 r1 r2 r3 r4 �wire� from_address� received_time�r�er r r � receive_udpq s@ �� �� � rA �5 )�q�where�timeoutr �source� source_portr- r. r1 r2 r �backendr3 r" c � s$ | � � } t|�\}}tj�|�}t||f|�}| r<t| �}nJ| sJtj�� } t |||�}| � � rh||f}nd}| � |t j d||�I dH }|4 I dH �v}t|| ||�I dH t|||||| j| j|| | | � I dH \}}}|| |_| s�| �|�s�t�|W d �I dH S 1 I dH �s0 Y dS )aF Return the response obtained after sending a query via UDP. *sock*, a ``dns.asyncbackend.DatagramSocket``, or ``None``, the socket to use for the query. If ``None``, the default, a socket is created. Note that if a socket is provided, the *source*, *source_port*, and *backend* are ignored. *backend*, a ``dns.asyncbackend.Backend``, or ``None``. If ``None``, the default, then dnspython will use the default backend. See :py:func:`dns.query.udp()` for the documentation of the other parameters, exceptions, and return type of this method. Nr )r' r r$ �inet�af_for_address�_lltupler � asyncbackend�get_default_backendr Z datagram_connection_required� make_socketr � SOCK_DGRAMr+ rA r/ �macr r: r )rC rD rE r rF rG r- r. r1 r2 r rH r3 r< � begin_timer r r! �cm�stuple�dtuple�sr? r> �_r r r �udp� s@ � rW )rC rD rE r rF rG r- r. r1 �udp_sock�tcp_sockrH r3 r" c � st z0t | ||||||||d| | | � I dH } | dfW S tjjyn t| |||||||| | � I dH } | df Y S 0 dS )a� Return the response to the query, trying UDP first and falling back to TCP if UDP results in a truncated response. *udp_sock*, a ``dns.asyncbackend.DatagramSocket``, or ``None``, the socket to use for the UDP query. If ``None``, the default, a socket is created. Note that if a socket is provided the *source*, *source_port*, and *backend* are ignored for the UDP query. *tcp_sock*, a ``dns.asyncbackend.StreamSocket``, or ``None``, the socket to use for the TCP query. If ``None``, the default, a socket is created. Note that if a socket is provided *where*, *source*, *source_port*, and *backend* are ignored for the TCP query. *backend*, a ``dns.asyncbackend.Backend``, or ``None``. If ``None``, the default, then dnspython will use the default backend. See :py:func:`dns.query.udp_with_fallback()` for the documentation of the other parameters, exceptions, and return type of this method. TNF)rW r$ r% r9 �tcp)rC rD rE r rF rG r- r. r1 rX rY rH r3 �responser r r �udp_with_fallback� s> #� � r\ )r r r r" c � s\ t |tjj�r |jdd�}nt|��dd�| }t�� }| �|t ||��I dH t|�|fS )z�Send a DNS message to the specified TCP socket. *sock*, a ``dns.asyncbackend.StreamSocket``. See :py:func:`dns.query.send_tcp()` for the documentation of the other parameters, exceptions, and return type of this method. T)Zprepend_length� ZbigN) r# r$ r% r& r' �len�to_bytesr �sendallr )r r r �tcpmsgr) r r r �send_tcp4 s rb c � sH d}|dkrD| � |t|��I dH }|dkr.t�|t|� }|| }q|S )z|Read the specified number of bytes from stream. Keep trying until we either get the desired amount, or we hit EOF. r, r N)Zrecvr �EOFErrorr^ )r �countr rU r* r r r � _read_exactlyM s re )r r r. r/ r0 r1 r" c � sX t | d|�I dH }t�d|�\}t | ||�I dH }t�� } tjj|||||d�} | | fS )z�Read a DNS message from a TCP socket. *sock*, a ``dns.asyncbackend.StreamSocket``. See :py:func:`dns.query.receive_tcp()` for the documentation of the other parameters, exceptions, and return type of this method. r] N�!H�r/ r0 r. r1 )re �struct�unpackr r$ r% r8 ) r r r. r/ r0 r1 �ldata�lr< r> r? r r r � receive_tcp[ s �rl ) rC rD rE r rF rG r. r1 r rH r" c � s | � � } t|�\} } |r0|�� I dH t|�} nJtj�|�}t|||�}||f}| s^tj� � } | � |t j d|||�I dH } | 4 I dH �d}t || | �I dH t|| || j| j|�I dH \}}|| |_| �|�s�t�|W d �I dH S 1 I dH � s�0 Y dS )aO Return the response obtained after sending a query via TCP. *sock*, a ``dns.asyncbacket.StreamSocket``, or ``None``, the socket to use for the query. If ``None``, the default, a socket is created. Note that if a socket is provided *where*, *port*, *source*, *source_port*, and *backend* are ignored. *backend*, a ``dns.asyncbackend.Backend``, or ``None``. If ``None``, the default, then dnspython will use the default backend. See :py:func:`dns.query.tcp()` for the documentation of the other parameters, exceptions, and return type of this method. Nr )r' r Z getpeernamer r$ rI rJ r rL rM rN r � SOCK_STREAMrb rl r/ rP r r: r )rC rD rE r rF rG r. r1 r rH r< rQ r rR r rS rT rU r? r> r r r rZ y s, � � rZ �U T)rC rD rE r rF rG r. r1 r rH � ssl_context�server_hostname�verifyr" c � s� t |�\} }|rt|�}n`| du r,t| | �} tj�|�}t|||�}||f}| sZtj�� } | � |t j d|||| | �I dH }|4 I dH �T}t |�}t | ||||||||| � I dH }t�� }|| |_|W d �I dH S 1 I dH s�0 Y dS )a� Return the response obtained after sending a query via TLS. *sock*, an ``asyncbackend.StreamSocket``, or ``None``, the socket to use for the query. If ``None``, the default, a socket is created. Note that if a socket is provided, it must be a connected SSL stream socket, and *where*, *port*, *source*, *source_port*, *backend*, *ssl_context*, and *server_hostname* are ignored. *backend*, a ``dns.asyncbackend.Backend``, or ``None``. If ``None``, the default, then dnspython will use the default backend. See :py:func:`dns.query.tls()` for the documentation of the other parameters, exceptions, and return type of this method. Nr )r r r r$ rI rJ r rL rM rN r rm r rZ r )rC rD rE r rF rG r. r1 r rH ro rp rq rQ r rR r rS rT rU r[ Zend_timer r r �tls� sJ � � rr i� z /dns-queryzhttpx.AsyncClientzdns.asyncresolver.Resolver)rC rD rE r rF rG r. r1 �client�path�postrq �bootstrap_address�resolverr7 r" c � s& t st�|r t|tj�s td��| �� }ztj� |�}W n tyN d}Y n0 d}ddi}|dur�tj� |�r�|t j kr�d� ||| �}q�|t jkr�d� ||| �}n|}tj�� }|du r�d}d}n|}|}|�� |dd| || | |d �}|r�t|�}ntjdd| |d �}|4 I dH ��}| �rT|�dtt|��d �� |�|j|||d �|�I dH }n:t�|��d �}|�� }|�|j ||d|id�|�I dH }W d �I dH �q�1 I dH �s�0 Y |j dk �s�|j dk�r�td� ||j |j ���tj j |j | j!| j"||d�}|j#�$� |_%| �&|��s"t'�|S )a� Return the response obtained after sending a query via DNS-over-HTTPS. *client*, a ``httpx.AsyncClient``. If provided, the client to use for the query. Unlike the other dnspython async functions, a backend cannot be provided in this function because httpx always auto-detects the async backend. See :py:func:`dns.query.https()` for the documentation of the other parameters, exceptions, and return type of this method. z.session parameter must be an httpx.AsyncClientNZacceptzapplication/dns-messagezhttps://{}:{}{}zhttps://[{}]:{}{}r T)� local_address�http1�http2rq � local_portrv rw r7 )ry rz rq � transport)z content-typezcontent-length)�headers�content� =r$ )r} �params�� i+ z4{} responded with status code {} Response body: {!r}rg )(r r r# �httpxZ AsyncClient� ValueErrorr' r$ rI rJ Z is_addressr r �formatr rL rM Zget_transport_classr �update�strr^ �wait_forru �base64Zurlsafe_b64encode�rstrip�decode�getZ status_coder~ r% r8 r/ r0 �elapsedZ total_secondsr r: r ) rC rD rE r rF rG r. r1 rs rt ru rq rv rw r7 r< r r| r} �urlrH rx r{ rR Z the_clientr[ Ztwirer? r r r �https� s� � � ��� �8 ��� r� ) rD � txn_managerr4 r rE �lifetimerF rG �udp_moderH r" c # � s� |du rt j�|�\}} n t j�|�} |jd j} | t jjk} |�� } |� � }t j � | �}t |||�}| |f}t |�\}}d}|�r�d}| r�|tjkr�tj}d}n tj}d}| s�t j�� } | �||d||t|��I dH }|4 I dH ��� |�r|�||t|��I dH n&t�dt|��| }|�||�I dH t j� || | |���x}d}d}|�s�t |�\}} | du �s||du�r�| |k�r�|} |�r�t | |f|�} t| �}|� d|�I dH \} } t || | d��r��q��q�n2t |d| �I dH } t�!d| �\}!t ||!| �I dH } | t jjk} t j"j#| |j$|j%d| || | d�}"z|�&|"�}W nD t jj'�y~ |�sXJ �|tj(k�rf� d}d}tj}Y �qLY n0 |"j)}�qL|�s�|j$�r�|"j*�s�t j+�,d ��W d � n1 �s�0 Y W d �I dH q~1 I dH �s�0 Y q~dS ) am Conduct an inbound transfer and apply it via a transaction from the txn_manager. *backend*, a ``dns.asyncbackend.Backend``, or ``None``. If ``None``, the default, then dnspython will use the default backend. See :py:func:`dns.query.inbound_xfr()` for the documentation of the other parameters, exceptions, and return type of this method. Nr TFrf r5 r] )r/ r0 �xfr�origin�tsig_ctxZmultir. z missing TSIG)-r$ r� Z make_queryZextract_serial_from_queryZquestion�rdtypeZ rdatatypeZIXFRZfrom_wire_originr' rI rJ r r r �NEVERr rO rm rL rM rN r r( rh �packr^ r` ZInboundrK r6 r re ri r% r8 r/ rP Zprocess_messageZUseTCPZONLYr� Zhad_tsig� exceptionZ FormError)#rD r� r4 r rE r� rF rG r� rH �serialr� Zis_ixfrr� r< r rS rT rV r ZretryZ sock_typeZis_udprU ra ZinboundZdoner� Z mexpirationr! Zrwirer= rj rk r? r r r � inbound_xfrl s� � ��� � r� ) rC rD rE r rF rG r. r1 � connectionrq rH rp r" c � s� t jjstd��d| _| �� } |r8t jj} t jj}|}nt j�| �\} }| � 4 I dH ��}||| | d�4 I dH ��}|s�|�||||�}t |�\}}|� |�I dH }|4 I dH �> |� | d�I dH |� t |��I dH } W d �I dH �q1 I dH s�0 Y t�� }W d �I dH �q81 I dH �s.0 Y t jj| | j| j||d�}W d �I dH �q�1 I dH �sv0 Y t|| d�|_| �|��s�t�|S )ai Return the response obtained after sending an asynchronous query via DNS-over-QUIC. *backend*, a ``dns.asyncbackend.Backend``, or ``None``. If ``None``, the default, then dnspython will use the default backend. See :py:func:`dns.query.quic()` for the documentation of the other parameters, exceptions, and return type of this method. z DNS-over-QUIC is not available.r N)Z verify_modeZ server_nameTrg g )r$ �quicZ have_quicr �idr' Z null_factoryZfactories_for_backendZconnectr Z make_stream�sendZreceiver r r% r8 r/ r0 r r: r )rC rD rE r rF rG r. r1 r� rq rH rp r< ZcfactoryZmfactoryZthe_connection�contextZ the_manager�startr �streamZfinishr? r r r r� � sB � @6�4 r� )N)N) NNFFNr, FFFN) NrB Nr FFFFNNF) NrB Nr FFFNNNF)N)NFNr, F)NrB Nr FFNN) Nrn Nr FFNNNNT) Nrn Nr FFNTNN)K�__doc__r� � contextlibr rh r �typingr r r r r Zdns.asyncbackendr$ Z dns.exceptionZdns.inetZ dns.messageZdns.nameZdns.quicZ dns.rcodeZdns.rdataclassZ dns.rdatatypeZdns.transactionZdns._asyncbackendr Z dns.queryr r r r r r r r r r r� rI Zlow_level_address_tuplerK r r rL ZDatagramSocketr% r& �bytes�float�intr+ �bool�name�NameZtsigZKeyrA r� ZBackendrW Z StreamSocketr\ rb re rl rZ Z SSLContextrr Z AF_UNSPECr� r� Z transactionZTransactionManagerr� r� ZAsyncQuicConnectionr r r r �<module> s 0 � � � � @ � � E � � G � � �� ! � � ; � � I� � x� � h � �