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connection.cpython-310.pyc
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Return an arbitrary free address for the given family r )� localhostr r z listener-)�prefix�dirr z\\.\pipe\pyc-%d-%d-� zunrecognized family) �tempfile�mktempr � get_temp_dir�os�getpid�next� _mmap_counter� ValueError��familyr r r �arbitrary_addressE s ��r, c C sR t jdkr| dkrtd| ��t jdkr#| dkr%tt| �s'td| ��dS dS dS )zD Checks if the family is valid for the current environment. r r z Family %s is not recognized.r N)�sys�platformr) �hasattr�socketr* r r r �_validate_familyS s �r1 c C sP t | �tkrdS t | �tu r| �d�rdS t | �tu s t�| �r"dS td| ��)z] Return the types of the address This can be 'AF_INET', 'AF_UNIX', or 'AF_PIPE' r z\\r r z address type of %r unrecognized)�type�tuple�str� startswithr � is_abstract_socket_namespacer) )�addressr r r � address_type_ s r8 c @ s� e Zd ZdZd+dd�Zdd� Zdd� Zd d � Zd d � Zd d� Z e dd� �Z e dd� �Z e dd� �Z dd� Zdd� Zd,dd�Zd d � Zd-d d �Zd.d d!�Zd"d#� Zd/d%d&�Zd'd(� Zd)d*� ZdS )0�_ConnectionBaseNTc C s> |� � }|dk r td��|s|std��|| _|| _|| _d S )Nr zinvalid handlez6at least one of `readable` and `writable` must be True)� __index__r) �_handle� _readable� _writable)�self�handle�readable�writabler r r �__init__u s � z_ConnectionBase.__init__c C s | j d ur | �� d S d S r �r; �_close�r> r r r �__del__� s �z_ConnectionBase.__del__c C s | j d u r td��d S )Nzhandle is closed)r; �OSErrorrE r r r � _check_closed� s �z _ConnectionBase._check_closedc C � | j std��d S )Nzconnection is write-only)r< rG rE r r r �_check_readable� � �z _ConnectionBase._check_readablec C rI )Nzconnection is read-only)r= rG rE r r r �_check_writable� rK z _ConnectionBase._check_writablec C s$ | j r d| _td��| �� td��)NFzbad message length)r= r< �closerG rE r r r �_bad_message_length� s �z#_ConnectionBase._bad_message_lengthc C s | j du S )z True if the connection is closedN�r; rE r r r �closed� s z_ConnectionBase.closedc C � | j S )z"True if the connection is readable)r< rE r r r r@ � � z_ConnectionBase.readablec C rQ )z"True if the connection is writable)r= rE r r r rA � rR z_ConnectionBase.writablec C s | � � | jS )z+File descriptor or handle of the connection)rH r; rE r r r �fileno� s z_ConnectionBase.filenoc C s, | j durz | �� W d| _ dS d| _ w dS )zClose the connectionNrC rE r r r rM � s �z_ConnectionBase.closer c C s� | � � | �� t|�}|jdkrtt|��}t|�}|dk r#td��||k r+td��|du r4|| }n|dk r<td��|| |krFtd��| �|||| � � dS )z,Send the bytes data from a bytes-like objectr r zoffset is negativezbuffer length < offsetNzsize is negativez buffer length < offset + size)rH rL � memoryview�itemsize�bytes�lenr) � _send_bytes)r> �buf�offset�size�m�nr r r � send_bytes� s" z_ConnectionBase.send_bytesc C s$ | � � | �� | �t�|�� dS )zSend a (picklable) objectN)rH rL rX �_ForkingPickler�dumps�r> �objr r r �send� s z_ConnectionBase.sendc C sJ | � � | �� |dur|dk rtd��| �|�}|du r!| �� |�� S )z7 Receive bytes data as a bytes object. Nr znegative maxlength)rH rJ r) � _recv_bytesrN �getvalue)r> � maxlengthrY r r r � recv_bytes� s z_ConnectionBase.recv_bytesc C s� | � � | �� t|��K}|j}|t|� }|dk r td��||kr&td��| �� }|�� }||| k r:t|� � ��|� d� |� ||| || | � � |W d � S 1 sZw Y dS )zq Receive bytes data into a writeable bytes-like object. Return the number of bytes read. r znegative offsetzoffset too largeN) rH rJ rT rU rW r) rd �tellr re �seek�readinto)r> rY rZ r\ rU �bytesize�resultr[ r r r �recv_bytes_into� s& �$�z _ConnectionBase.recv_bytes_intoc C s& | � � | �� | �� }t�|�� �S )z Receive a (picklable) object)rH rJ rd r_ �loads� getbuffer)r> rY r r r �recv� s z_ConnectionBase.recv� c C s | � � | �� | �|�S )z/Whether there is any input available to be read)rH rJ �_poll�r> r r r r �poll� s z_ConnectionBase.pollc C � | S r r rE r r r � __enter__ � z_ConnectionBase.__enter__c C � | � � d S r �rM �r> �exc_type� exc_value�exc_tbr r r �__exit__ r z_ConnectionBase.__exit__)TT)r Nr )r )rq )�__name__� __module__� __qualname__r; rB rF rH rJ rL rN �propertyrP r@ rA rS rM r^ rc rg rm rp rt rv r~ r r r r r9 r s0 r9 c @ sD e Zd ZdZdZejfdd�Zdd� Zddd �Z d d � Z d d � Z dS )�PipeConnectionz� Connection class based on a Windows named pipe. Overlapped I/O is used, so the handles must have been created with FILE_FLAG_OVERLAPPED. Fc C � || j � d S r rO )r> � _CloseHandler r r rD � zPipeConnection._closec C s� t j| j|dd�\}}z(z|t jkr!t �|jgdt�}|tks!J �W n |�� � W |� d�\}}n|� d�\}}w |dksBJ �|t |�ksJJ �d S )NT�� overlappedFr ) �_winapi� WriteFiler; �ERROR_IO_PENDING�WaitForMultipleObjects�eventr r �cancel�GetOverlappedResultrW )r> rY �ov�err�waitres�nwrittenr r r rX s � �� zPipeConnection._send_bytesNc C sh | j r d| _ t�� S |d u rdnt|d�}z�tj| j|dd�\}}zFz|tjkr7t�|j gdt �}|t ks7J �W n |� � � W |� d�\}}|dkr[t�� }|�|�� � |W S |tjkrg| �||�W S n2|� d�\}}|dkr�t�� }|�|�� � | Y W S |tjkr�| �||� Y W S w W td�� ty� } z |jtjkr�t�� d }~ww )NF� Tr� r z.shouldn't get here; expected KeyboardInterrupt)�_got_empty_message�io�BytesIO�minr� �ReadFiler; r� r� r� r r r� r� �writero �ERROR_MORE_DATA�_get_more_datarG �winerror�ERROR_BROKEN_PIPE�EOFError� RuntimeError) r> �maxsize�bsizer� r� r� �nread�f�er r r rd & sT � � �� �� �� ��zPipeConnection._recv_bytesc C s. | j s t�| j�d dkrdS tt| g|��S )Nr T)r� r� � PeekNamedPiper; �boolr rs r r r rr F s zPipeConnection._pollc C s� |� � }t�� }|�|� t�| j�d }|dksJ �|d ur+t|�| |kr+| �� tj | j|dd�\}}|� d�\}}|dksCJ �||ksIJ �|�|� � � |S )Nr r Tr� ) ro r� r� r� r� r� r; rW rN r� r� )r> r� r� rY r� �leftr� �rbytesr r r r� L s z PipeConnection._get_more_datar ) r r� r� �__doc__r� r� � CloseHandlerD rX rd rr r� r r r r r� s r� c @ s| e Zd ZdZerejfdd�ZejZ ej Z n e j fdd�Ze jZ e jZ e fdd�Ze fdd�Zd d � Zdd d �Zdd� Zd S )� Connectionzo Connection class based on an arbitrary file descriptor (Unix only), or a socket handle (Windows). c C r� r rO �r> rD r r r rD c r� zConnection._closec C r� r rO r� r r r rD h r� c C s8 t |�} || j|�}||8 }|dkrd S ||d � }q)NTr )rW r; )r> rY r� � remainingr] r r r �_sendm s �zConnection._sendc C sf t �� }| j}|}|dkr1|||�}t|�}|dkr$||kr t�td��|�|� ||8 }|dks |S )Nr z got end of file during message)r� r� r; rW r� rG r� )r> r[ �readrY r? r� �chunkr] r r r �_recvv s � zConnection._recvc C s� t |�}|dkr%t�dd�}t�d|�}| �|� | �|� | �|� d S t�d|�}|dkr;| �|� | �|� d S | �|| � d S )Ni����!i����!Qi @ )rW �struct�packr� )r> rY r] � pre_header�headerr r r rX � s zConnection._send_bytesNc C s^ | � d�}t�d|�� �\}|dkr | � d�}t�d|�� �\}|d ur*||kr*d S | � |�S )N� r� r� � r� )r� r� �unpackre )r> r� rY r[ r r r rd � s zConnection._recv_bytesc C s t | g|�}t|�S r )r r� )r> r �rr r r rr � s zConnection._pollr )r r� r� r� r� �_multiprocessing� closesocketrD rc �_writerp �_readr% rM r� r� r� r� rX rd rr r r r r r� \ s r� c @ sR e Zd ZdZddd�Zdd� Zdd � Zed d � �Zed d � �Z dd� Z dd� Z dS )r z� Returns a listener object. This is a wrapper for a bound socket which is 'listening' for connections, or for a Windows named pipe. Nr c C sp |p |rt |�p t}|pt|�}t|� |dkr t||�| _nt|||�| _|d ur3t|t�s3t d��|| _ d S )Nr � authkey should be a byte string) r8 �default_familyr, r1 � PipeListener� _listener�SocketListener� isinstancerV � TypeError�_authkey)r> r7 r+ �backlog�authkeyr r r rB � s � zListener.__init__c C s> | j du r td��| j �� }| jr t|| j� t|| j� |S )zz Accept a connection on the bound socket or named pipe of `self`. Returns a `Connection` object. Nzlistener is closed)r� rG �acceptr� �deliver_challenge�answer_challenge)r> �cr r r r� � s zListener.acceptc C s$ | j }|durd| _ |�� dS dS )zA Close the bound socket or named pipe of `self`. N)r� rM )r> �listenerr r r rM � s �zListener.closec C � | j jS r )r� �_addressrE r r r r7 � � zListener.addressc C r� r )r� �_last_acceptedrE r r r � last_accepted� r� zListener.last_acceptedc C ru r r rE r r r rv � rw zListener.__enter__c C rx r ry rz r r r r~ � r zListener.__exit__)NNr N) r r� r� r� rB r� rM r� r7 r� rv r~ r r r r r � s r c C sh |pt | �}t|� |dkrt| �}nt| �}|dur$t|t�s$td��|dur2t||� t||� |S )z= Returns a connection to the address of a `Listener` r Nr� ) r8 r1 � PipeClient� SocketClientr� rV r� r� r� )r7 r+ r� r� r r r r � s r Tc C sp | r"t �� \}}|�d� |�d� t|�� �}t|�� �}||fS t�� \}}t|dd�}t|dd�}||fS )�L Returns pair of connection objects at either end of a pipe TF�rA �r@ )r0 � socketpair� setblockingr� �detachr% �pipe)�duplex�s1�s2�c1�c2�fd1�fd2r r r r s � r c C s� t d�}| rtj}tjtjB }tt}}n tj}tj}dt}}t�||tjB tj B tj tj B tj B d||tj tj�}t�||dtjtjtjtj�}t�|tj dd� tj|dd�}|�d�\} } | dksgJ �t|| d�} t|| d�} | | fS ) r� r r r NTr� r� r� )r, r� �PIPE_ACCESS_DUPLEX� GENERIC_READ� GENERIC_WRITE�BUFSIZE�PIPE_ACCESS_INBOUND�CreateNamedPipe�FILE_FLAG_OVERLAPPED� FILE_FLAG_FIRST_PIPE_INSTANCE�PIPE_TYPE_MESSAGE�PIPE_READMODE_MESSAGE� PIPE_WAIT�NMPWAIT_WAIT_FOREVER�NULL� CreateFile� OPEN_EXISTING�SetNamedPipeHandleState�ConnectNamedPiper� r� ) r� r7 �openmode�access�obsize�ibsize�h1�h2r� �_r� r� r� r r r r s> � � � � � c @ s* e Zd ZdZd dd�Zdd� Zdd� Zd S ) r� zO Representation of a socket which is bound to an address and listening r c C s� t � tt |��| _z)tjdkr| j�t jt jd� | j�d� | j� |� | j� |� | j� � | _ W n t y? | j�� � w || _d | _|dkr]t�|�s]tj| tj|fdd�| _d S d | _d S )N�posixr Tr r ��args� exitpriority)r0 �getattr�_socketr% �name� setsockopt� SOL_SOCKET� SO_REUSEADDRr� �bind�listen� getsocknamer� rG rM �_familyr� r r6 �Finalize�unlink�_unlink)r> r7 r+ r� r r r rB G s* � � � zSocketListener.__init__c C s& | j �� \}| _|�d� t|�� �S )NT)r r� r� r� r� r� �r> �sr r r r� ` s zSocketListener.acceptc C sN z| j �� W | j}|d urd | _|� d S d S | j}|d ur&d | _|� w w r )r rM r )r> r r r r rM e s ���zSocketListener.closeN)r )r r� r� r� rB r� rM r r r r r� C s r� c C s\ t | �}t�tt|���}|�d� |�| � t|�� �W d � S 1 s'w Y dS )zO Return a connection object connected to the socket given by `address` TN)r8 r0 r r� �connectr� r� )r7 r+ r r r r r� o s $�r� c @ s8 e Zd ZdZd dd�Zd dd�Zdd � Zed d � �ZdS )r� z0 Representation of a named pipe Nc C sL || _ | jdd�g| _d | _t�d| j � tj| tj| j| j fdd�| _ d S )NT)�firstz listener created with address=%rr r� ) r� � _new_handle� _handle_queuer� r � sub_debugr r� �_finalize_pipe_listenerrM )r> r7 r� r r r rB � s �zPipeListener.__init__Fc C sH t jt jB }|r |t jO }t �| j|t jt jB t jB t j t t t j t j �S r ) r� r� r� r� r� r� r� r� r� �PIPE_UNLIMITED_INSTANCESr� r� r� )r> r �flagsr r r r � s ��zPipeListener._new_handlec C s� | j �| �� � | j �d�}z tj|dd�}W n ty3 } z|jtjkr&� W Y d }~t|�S d }~ww z+z t� |j gdt �}W n |� � t� |� � W |�d�\}}|dks\J �t|�S |�d�\}}|dksmJ �w )Nr Tr� F)r �appendr �popr� r� rG r� � ERROR_NO_DATAr� r� r r� r� r� r� )r> r? r� r� �resr� r� r r r r� � s2 ��� � � �zPipeListener.acceptc C s$ t �d|� | D ]}t�|� qd S )Nz closing listener with address=%r)r r r� r� )�queuer7 r? r r r r � s �z$PipeListener._finalize_pipe_listenerr )F) r r� r� r� rB r r� � staticmethodr r r r r r� s r� c C s� t � } zt�| d� t�| tjtjB dtjtjtjtj�}W n t y? } z|j tj tj fvs4t |�r5� W Y d}~nd}~ww nqt�|tjdd� t|�S )zU Return a connection object connected to the pipe given by `address` r �� r N)r r� � WaitNamedPiper� r� r� r� r� r� rG r� �ERROR_SEM_TIMEOUT�ERROR_PIPE_BUSYr r� r� r� )r7 r �hr� r r r r� � s2 ��� ���� �r� � s #CHALLENGE#s #WELCOME#s #FAILURE#c C s� dd l }t|t�std�t|����t�t�}| � t | � |� ||d�� � }| � d�}||kr7| � t� d S | � t� td��)Nr � Authkey must be bytes, not {0!s}�md5� zdigest received was wrong)�hmacr� rV r) �formatr2 r% �urandom�MESSAGE_LENGTHr^ � CHALLENGE�new�digestrg �WELCOME�FAILUREr �� connectionr� r( �messager. �responser r r r� � s � r� c C s� dd l }t|t�std�t|����| �d�}|d tt�� tks'J d| ��|tt�d � }|� ||d�� � }| � |� | �d�}|t krJt d��d S )Nr r% r' z message = %rr& zdigest sent was rejected)r( r� rV r) r) r2 rg rW r, r- r. r^ r/ r r1 r r r r� � s � �r� c @ s$ e Zd Zdd� Zdd� Zdd� ZdS )�ConnectionWrapperc C s6 || _ || _|| _dD ] }t||�}t| ||� q d S )N)rS rM rt rg r^ )�_conn�_dumps�_loadsr �setattr)r> �connr` rn �attrrb r r r rB � s �zConnectionWrapper.__init__c C s | � |�}| j�|� d S r )r7 r6 r^ )r> rb r r r r rc s zConnectionWrapper.sendc C s | j �� }| �|�S r )r6 rg r8 r r r r rp s zConnectionWrapper.recvN)r r� r� rB rc rp r r r r r5 � s r5 c C s t �| fd d d d��d�S )Nr �utf-8)� xmlrpclibr` �encode)rb r r r � _xml_dumps s r? 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