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文件: /usr/lib/python3/dist-packages/twisted/web/__pycache__/twcgi.cpython-310.pyc
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The implementation is complex due to the fact that it requires asynchronous IPC with an external process with an unpleasant protocol. � Nc C s$ || _ |du r ddlm} || _dS )zA Initialize, with the name of a CGI script file. Nr )�reactor)�filename�twisted.internetr$ �_reactor)r r% �registryr$ r r r r 6 s zCGIScript.__init__c C s� dd� |j� }|�� �d�d }tj|d|jt|�� j �|j || j |j d� }|� � j}|dur4||d< |j}|rBdd� |� |d < t|d �r`|j�dd � |j�� }|j�dd� t|�|d < z|j �d �}W n tyw d|d< g } Y n w |j |d d� } |d< d| v r�g } n dd� | �d�D �} |�� �� D ]\} } | �dd��� } | dvr�d| } | || < q�tj�� D ] \}}||vr�|||< q�| � ||| � tj S )a Do various things to conform to the CGI specification. I will set up the usual slew of environment variables, then spin off a process. @type request: L{twisted.web.http.Request} @param request: An HTTP request. � /� :r zCGI/1.1) �SERVER_SOFTWARE� SERVER_NAME�GATEWAY_INTERFACE�SERVER_PROTOCOL� SERVER_PORT�REQUEST_METHOD� SCRIPT_NAME�SCRIPT_FILENAME� REQUEST_URIN� REMOTE_ADDR�/� PATH_INFO�content� �CONTENT_LENGTH� ?� � QUERY_STRINGr# � =c S s g | ] }t j�|�� ��qS r )�urllib�parse�unquote�decode)�.0�xr r r � <listcomp>s s z$CGIScript.render.<locals>.<listcomp>� +� -� _)s content-types content-lengths proxys HTTP_) �join�prepath�getRequestHostname�splitr �version� clientproto�str�getHost�port�methodr% �uri�getClientAddress�host�postpath�hasattrr7 �seek�tell�index� ValueError� getAllHeaders�items�replace�upper�os�environ� runProcess� NOT_DONE_YET)r r � scriptName� serverName�env�ip�pp�length�qindex�qargs�qs�title�header�envname�key�valuer r r r B sX � � �zCGIScript.renderc C s4 t |�}| j�|| j| jg| |tj�| j�� dS )aI Run the cgi script. @type env: A L{dict} of L{str}, or L{None} @param env: The environment variables to pass to the process that will get spawned. See L{twisted.internet.interfaces.IReactorProcess.spawnProcess} for more information about environments and process creation. @type request: L{twisted.web.http.Request} @param request: An HTTP request. @type qargs: A L{list} of L{str} @param qargs: The command line arguments to pass to the process that will get spawned. N)�CGIProcessProtocolr' � spawnProcessr% r_ r �dirname�r re r rj �pr r r ra � s �zCGIScript.runProcess)NN)r r! r" �__doc__�isLeafr r ra r r r r r + s Ar c @ s e Zd ZdZdZg fdd�ZdS )�FilteredScripta I am a special version of a CGI script, that uses a specific executable. This is useful for interfacing with other scripting languages that adhere to the CGI standard. My C{filter} attribute specifies what executable to run, and my C{filename} init parameter describes which script to pass to the first argument of that script. To customize me for a particular location of a CGI interpreter, override C{filter}. @type filter: L{str} @ivar filter: The absolute path to the executable. z /usr/bin/catc C s8 t |�}| j�|| j| j| jg| |tj�| j�� dS )ad Run a script through the C{filter} executable. @type env: A L{dict} of L{str}, or L{None} @param env: The environment variables to pass to the process that will get spawned. See L{twisted.internet.interfaces.IReactorProcess.spawnProcess} for more information about environments and process creation. @type request: L{twisted.web.http.Request} @param request: An HTTP request. @type qargs: A L{list} of L{str} @param qargs: The command line arguments to pass to the process that will get spawned. N)rq r' rr �filterr% r_ r rs rt r r r ra � s �zFilteredScript.runProcessN)r r! r" rv ry ra r r r r rx � s rx c @ s� e Zd ZdZdZdZdZe� ZdZ dd� Z dd� Z d d � Z d d � Z d d� Zdd� Zdd� Zdd� Zdd� Zdd� Zdd� Zdd � Zd S ) rq r# r � Fc C � | � � d S r )�resumeProducing�r �issuerr r r �view_resumeProducing� � z'CGIProcessProtocol.view_resumeProducingc C r{ r )�pauseProducingr} r r r �view_pauseProducing� r� z&CGIProcessProtocol.view_pauseProducingc C r{ r )� stopProducingr} r r r �view_stopProducing� r� z%CGIProcessProtocol.view_stopProducingc C � | j �� d S r )� transportr| �r r r r r| � � z"CGIProcessProtocol.resumeProducingc C r� r )r� r� r� r r r r� � r� z!CGIProcessProtocol.pauseProducingc C r� r )r� �loseConnectionr� r r r r� � r� z CGIProcessProtocol.stopProducingc C s || _ | j �� �| j� d S r )r � notifyFinish�addBoth� _finished)r r r r r r � s zCGIProcessProtocol.__init__c C sH | j �| d� | j j�dd� | j j�� }|r | j�|� | j�� d S )Nr# r )r �registerProducerr7 rW �readr� �write� closeStdin)r r7 r r r �connectionMade� s z!CGIProcessProtocol.connectionMadec C s | j | | _ d S r )� errortext)r �errorr r r � errReceived� s z CGIProcessProtocol.errReceivedc C s� | j r�| j| }g }dD ]}|�|�}|dkr |�||f� q |r�d| j_|�� |d \}}|d|� | _|dt|�d � }| j�|�}|D ]b}|�d�} | dkr\| j j d|d� qH|d| � � � } || d d� } | d krw| j� t j� | d kr�z t| dd � �} W n ty� | j � d � Y qHw | j� | � qH| � � d vr�| jj�| | � qH||t|� d� }d| _ | j r�|| _| j s�| j�|� dS dS )z) Handle a chunk of input )s s s s ���Nr r8 s : z)ignoring malformed CGI header: {header!r})rm s locations status� zmalformed status header)s servers date)�handling_headers� headertext�find�appendr �defaultContentType�sort�lenrK �_logr� �lower�setResponseCoder �FOUND�int� BaseException�responseHeaders� addRawHeaderr� ) r �output�text� headerEnds� delimiter� headerend� linebreak�headersrm �br� headerName� headerText� statusNumr r r � outReceived� sX � � � ���z CGIProcessProtocol.outReceivedc C s� |j jdkr| jjd| jj|j jd� | jr"| jjd| jj| jd� | jrD| jjd| jj| jd� | j sD| j� t � t jdd ��| j�� | j sS| j�� | j�� d S d S ) Nr z*CGI {uri} exited with exit code {exitCode})rR �exitCodez"Errors from CGI {uri}: {errorText})rR � errorTextz/Premature end of headers in {uri}: {headerText})rR r� zCGI Script Errorz Premature end of script headers.)rp r� r� r� r rR r� r� r� �_requestFinishedr� r � ErrorPager �INTERNAL_SERVER_ERRORr �unregisterProducer�finish)r �reasonr r r � processEnded0 s> ����� �z CGIProcessProtocol.processEndedc C s d| _ dS )zc Record the end of the response generation for the request being serviced. TN)r� )r �ignoredr r r r� Q s z CGIProcessProtocol._finishedN)r r! r" r� �headers_writtenr� r� r r� r� r r� r� r| r� r� r r� r� r� r� r� r r r r rq � s& : !rq )rv r_ r> r& r �twisted.loggerr �twisted.pythonr �twisted.spreadr � twisted.webr r r r r r r r rx �ProcessProtocol�Viewablerq r r r r �<module> s s-
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