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C sJ z:| j � s| j� r8x| jD ]}| j|� q W | j� W d| j� X dS )a> Send any iterable data, then close self and the iterable
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zBaseHandler.cleanup_headersc C sh |r2z$| j r&|d |d �j|d ��W dd}X n| jdk rDtd��|| _| j|�| _| j|d�}| jS )z4'start_response()' callable as specified by PEP 3333r r � NzHeaders already set!ZStatus)� headers_sent�with_tracebackrR �AssertionError�status�
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zBaseHandler.writec C s dS )a Platform-specific file transmission
Override this method in subclasses to support platform-specific
file transmission. It is only called if the application's
return iterable ('self.result') is an instance of
'self.wsgi_file_wrapper'.
This method should return a true value if it was able to actually
transmit the wrapped file-like object using a platform-specific
approach. It should return a false value if normal iteration
should be used instead. An exception can be raised to indicate
that transmission was attempted, but failed.
NOTE: this method should call 'self.send_headers()' if
'self.headers_sent' is false and it is going to attempt direct
transmission of the file.
Fr )r6 r r r rH s zBaseHandler.sendfilec C s" | j s | jjdd� | j� n dS )z.Ensure headers and content have both been sentzContent-Length�0N)rV rR rE rf )r6 r r r rJ 0 s
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r5 Nr F)�hasattrr2 r5 rR rY r% rQ rV )r6 r r r r5 : s zBaseHandler.closec C s: | j � d| _| j s | j� r6| j� | jt| j�� dS )z1Transmit headers to the client, via self._write()TN)rT rV rC rb re rc �bytesrR )r6 r r r rf G s
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isinstancer2 )r6 �wrapperr r r rG P s zBaseHandler.result_is_filec C s | j d j� dkS )z,True if client can accept status and headersZSERVER_PROTOCOLzHTTP/0.9)r% �upper)r6 r r r rb V s z BaseHandler.client_is_modernc C sJ z>ddl m} | j� }||d |d |d | j|� |j� W dd}X dS )z�Log the 'exc_info' tuple in the server log
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zBaseHandler.log_exceptionc C s2 | j tj� � | js.| j| j| j�| _| j� dS )z>Log current error, and send error output to client if possibleN) rs r r\ rV � error_outputr% r1 r2 r3 )r6 r r r r4 k s zBaseHandler.handle_errorc C s$ || j | jdd� tj� � | jgS )aZ WSGI mini-app to create error output
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and 'error_body' attributes to generate an output page. It can
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choose an appropriate message for the user's preferred language, etc.
Note, however, that it's not recommended from a security perspective to
spit out diagnostics to any old user; ideally, you should have to do
something special to enable diagnostic output, which is why we don't
include any here!
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zBaseHandler.error_outputc C s t �dS )a Override in subclass to buffer data for send to client
It's okay if this method actually transmits the data; BaseHandler
just separates write and flush operations for greater efficiency
when the underlying system actually has such a distinction.
N)rO )r6 rK r r r rc � s zBaseHandler._writec C s t �dS )z�Override in subclass to force sending of recent '_write()' calls
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N)rO )r6 r r r rg � s zBaseHandler._flushc C s t �dS )z4Override in subclass to return suitable 'wsgi.input'N)rO )r6 r r r r; � s zBaseHandler.get_stdinc C s t �dS )z5Override in subclass to return suitable 'wsgi.errors'N)rO )r6 r r r r< � s zBaseHandler.get_stderrc C s t �dS )z>Override in subclass to insert CGI variables in 'self.environ'N)rO )r6 r r r r: � s zBaseHandler.add_cgi_vars)r r )r. r/ )N)2�__name__�
__module__� __qualname__�__doc__r= r@ rA r> rC rd rD r r8 r rB r rZ rp ru rv rw rY r2 rV rR rQ r7 r0 r3 r? rS rT r1 r[ re rI rH rJ r5 rf rG rb rs r4 rt rc rg r; r< r: r r r r r ^ sV
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� Zdd� Z dS )r aq Handler that's just initialized with streams, environment, etc.
This handler subclass is intended for synchronous HTTP/1.0 origin servers,
and handles sending the entire response output, given the correct inputs.
Usage::
handler = SimpleHandler(
inp,out,err,env, multithread=False, multiprocess=True
)
handler.run(app)TFc C s( || _ || _|| _|| _|| _|| _d S )N)�stdin�stdoutrr �base_envr@ rA )r6 r| r} rr r% � multithread� multiprocessr r r �__init__� s zSimpleHandler.__init__c C s | j S )N)r| )r6 r r r r; � s zSimpleHandler.get_stdinc C s | j S )N)rr )r6 r r r r< � s zSimpleHandler.get_stderrc C s | j j| j� d S )N)r% �updater~ )r6 r r r r: � s zSimpleHandler.add_cgi_varsc C sb | j j|�}|d ks |t|�kr$d S ddlm} |dt� x"||d � }|sNP | j j|�}q<W d S )Nr )�warnz9SimpleHandler.stdout.write() should not do partial writes)r} rI rL �warningsr� �DeprecationWarning)r6 rK r2 r� r r r rc � s zSimpleHandler._writec C s | j j� | j j| _d S )N)r} rq rg )r6 r r r rg � s
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c @ s e Zd ZdZdZdS )r a� CGI-like systems using input/output/error streams and environ mapping
Usage::
handler = BaseCGIHandler(inp,out,err,env)
handler.run(app)
This handler class is useful for gateway protocols like ReadyExec and
FastCGI, that have usable input/output/error streams and an environment
mapping. It's also the base class for CGIHandler, which just uses
sys.stdin, os.environ, and so on.
The constructor also takes keyword arguments 'multithread' and
'multiprocess' (defaulting to 'True' and 'False' respectively) to control
the configuration sent to the application. It sets 'origin_server' to
False (to enable CGI-like output), and assumes that 'wsgi.run_once' is
False.
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a� CGI-based invocation via sys.stdin/stdout/stderr and os.environ
Usage::
CGIHandler().run(app)
The difference between this class and BaseCGIHandler is that it always
uses 'wsgi.run_once' of 'True', 'wsgi.multithread' of 'False', and
'wsgi.multiprocess' of 'True'. It does not take any initialization
parameters, but always uses 'sys.stdin', 'os.environ', and friends.
If you need to override any of these parameters, use BaseCGIHandler
instead.
Tc C s( t j| tjjtjjtjt� ddd� d S )NFT)r r� )r r� r r| �bufferr} rr r )r6 r r r r� s zCGIHandler.__init__N)rx ry rz r{ r> r8 r� r r r r r
� s c @ s e Zd ZdZdZi Zdd� ZdS )r a CGI-based invocation with workaround for IIS path bug
This handler should be used in preference to CGIHandler when deploying on
Microsoft IIS without having set the config allowPathInfo option (IIS>=7)
or metabase allowPathInfoForScriptMappings (IIS<7).
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