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handlers.pyo
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� { fc @ sG d Z d d l m Z d d l m Z m Z m Z d d l m Z d d l Z d d l Z d d l Z d d d d g Z y e Wn e k r� d � Z n Xd d d d d d d g Z e d d d d d d d d d d d d g Z d � Z d f d � � YZ d e f d � � YZ d e f d! � � YZ d e f d" � � YZ d S(# s/ Base classes for server/gateway implementationsi����( t StringType( t FileWrappert guess_schemet is_hop_by_hop( t HeadersNt BaseHandlert SimpleHandlert BaseCGIHandlert CGIHandlerc C s+ i } x | D] \ } } | | | <q W| S( N( ( t itemst dt kt v( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyt dict s t Mont Tuet Wedt Thut Frit Satt Sunt Jant Febt Mart Aprt Mayt Junt Jult Augt Sept Octt Novt Decc C sO t j | � \ } } } } } } } } } d t | | t | | | | | f S( Ns# %s, %02d %3s %4d %02d:%02d:%02d GMT( t timet gmtimet _weekdaynamet _monthname( t timestampt yeart montht dayt hht mmt sst wdt yt z( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyt format_date_time# s *c B sb e Z d Z d Z e Z e Z e Z e Z d Z d Z e e j j � � Z e Z e Z d Z d Z d! g Z d Z d Z Z e Z d Z d Z d � Z d � Z d � Z! d � Z" d � Z# d � Z$ d d � Z% d � Z& d � Z' d � Z( d � Z) d � Z* d � Z+ d � Z, d � Z- d � Z. d � Z/ d � Z0 d � Z1 d � Z2 d � Z3 d � Z4 d � Z5 RS(" s+ Manage the invocation of a WSGI applicationi i s 1.0s 500 Internal Server Errors Content-Types text/plains; A server error occurred. Please contact the administrator.c C sc y0 | j � | | j | j � | _ | j � Wn, y | j � Wq_ | j � � q_ Xn Xd S( s Invoke the applicationN( t setup_environt environt start_responset resultt finish_responset handle_errort close( t selft application( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyt runL s c C s� | j j � } | _ | j � | j � | d <| j � | d <| j | d <| j | d <| j � | d <| j | d <| j | d <| j d k r� | j | d <n | j r� | j r� | j d | j � n d S( s& Set up the environment for one requests wsgi.inputs wsgi.errorss wsgi.versions wsgi.run_onces wsgi.url_schemes wsgi.multithreads wsgi.multiprocesss wsgi.file_wrappert SERVER_SOFTWAREN( t os_environt copyR1 t add_cgi_varst get_stdint get_stderrt wsgi_versiont wsgi_run_oncet get_schemet wsgi_multithreadt wsgi_multiprocesst wsgi_file_wrappert Nonet origin_servert server_softwaret setdefault( R7 t env( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyR0 ` s c C s^ zL | j � s | j � rK x | j D] } | j | � q' W| j � n Wd | j � Xd S( s> Send any iterable data, then close self and the iterable Subclasses intended for use in asynchronous servers will want to redefine this method, such that it sets up callbacks in the event loop to iterate over the data, and to call 'self.close()' once the response is finished. N( t result_is_filet sendfileR3 t writet finish_contentR6 ( R7 t data( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyR4 u s c C s t | j � S( s Return the URL scheme being used( R R1 ( R7 ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyRB � s c C sZ y t | j � } Wn t t t f k r/ n' X| d k rV t | j � | j d <d Sd S( s@ Compute Content-Length or switch to chunked encoding if possiblei s Content-LengthN( t lenR3 t TypeErrort AttributeErrort NotImplementedErrort strt bytes_sentt headers( R7 t blocks( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyt set_content_length� s c C s d | j k r | j � n d S( sq Make any necessary header changes or defaults Subclasses can extend this to add other defaults. s Content-LengthN( RV RX ( R7 ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyt cleanup_headers� s c C s{ | r; z( | j r- | d | d | d � n Wd d } Xn | j d k rY t d � � n | | _ | j | � | _ | j S( s3 'start_response()' callable as specified by PEP 333i i i Ns Headers already set!( t headers_sentRF RV t AssertionErrort statust headers_classRM ( R7 R\ RV t exc_info( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyR2 � s c C s� | j r� | j � r� | j d | j | j f � d | j k ra | j d t t j � � � n | j r� d | j k r� | j d | j � q� q� n | j d | j � d S( s6 Transmit version/status/date/server, via self._write()s HTTP/%s %s t Dates Date: %s t Servers Server: %s s Status: %s N( RG t client_is_modernt _writet http_versionR\ RV R/ R! RH ( R7 ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyt send_preamble� s c C sm | j s t d � � n: | j s= t | � | _ | j � n | j t | � 7_ | j | � | j � d S( s* 'write()' callable as specified by PEP 333s write() before start_response()N( R\ R[ RZ RP RU t send_headersRb t _flush( R7 RO ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyRM � s c C s t S( s 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. ( t False( R7 ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyRL � s c C s- | j s) | j j d d � | j � n d S( s. Ensure headers and content have both been sents Content-Lengtht 0N( RZ RV RI Re ( R7 ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyRN � s c C s^ z& t | j d � r% | j j � n Wd d | _ | _ | _ | _ d | _ t | _ Xd S( s� Close the iterable (if needed) and reset all instance vars Subclasses may want to also drop the client connection. R6 Ni ( t hasattrR3 R6 RF RV R\ R1 RU Rg RZ ( R7 ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyR6 � s c C sP | j � t | _ | j s) | j � rL | j � | j t | j � � n d S( s1 Transmit headers to the client, via self._write()N( RY t TrueRZ RG Ra Rd Rb RT RV ( R7 ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyRe s c C s% | j } | d k o$ t | j | � S( s@ True if 'self.result' is an instance of 'self.wsgi_file_wrapper'N( RE RF t isinstanceR3 ( R7 t wrapper( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyRK s c C s | j d j � d k S( s, True if client can accept status and headerst SERVER_PROTOCOLs HTTP/0.9( R1 t upper( R7 ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyRa s c C s] zO d d l m } | j � } | | d | d | d | j | � | j � Wd d } Xd S( s� Log the 'exc_info' tuple in the server log Subclasses may override to retarget the output or change its format. i����( t print_exceptioni i i N( t tracebackRo R? t traceback_limitt flushRF ( R7 R^ Ro t stderr( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyt log_exception s c C sH | j t j � � | j sD | j | j | j � | _ | j � n d S( s> Log current error, and send error output to client if possibleN( Rt t sysR^ RZ t error_outputR1 R2 R3 R4 ( R7 ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyR5 - s c C s' | | j | j t j � � | j g S( sZ WSGI mini-app to create error output By default, this just uses the 'error_status', 'error_headers', and 'error_body' attributes to generate an output page. It can be overridden in a subclass to dynamically generate diagnostics, 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! ( t error_statust error_headersRu R^ t error_body( R7 R1 R2 ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyRv 5 s c C s t � d S( s 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( RS ( R7 RO ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyRb H s c C s t � d S( s� Override in subclass to force sending of recent '_write()' calls It's okay if this method is a no-op (i.e., if '_write()' actually sends the data. N( RS ( R7 ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyRf Q s c C s t � d S( s4 Override in subclass to return suitable 'wsgi.input'N( RS ( R7 ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyR> Y s c C s t � d S( s5 Override in subclass to return suitable 'wsgi.errors'N( RS ( R7 ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyR? ] s c C s t � d S( s> Override in subclass to insert CGI variables in 'self.environ'N( RS ( R7 ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyR= a s ( i i N( s Content-Types text/plain(6 t __name__t __module__t __doc__R@ Rj RC RD Rg RA RG Rc RF RH R t osR1 R R; R RE R R] Rq Rw Rx Ry R\ R3 RZ RV RU R9 R0 R4 RB RX RY R2 Rd RM RL RN R6 Re RK Ra Rt R5 Rv Rb Rf R> R? R= ( ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyR * sT c B sJ e Z d Z e e d � Z d � Z d � Z d � Z d � Z d � Z RS( sq 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)c C s: | | _ | | _ | | _ | | _ | | _ | | _ d S( N( t stdint stdoutRs t base_envRC RD ( R7 R~ R Rs R1 t multithreadt multiprocess( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyt __init__s s c C s | j S( N( R~ ( R7 ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyR> } s c C s | j S( N( Rs ( R7 ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyR? � s c C s | j j | j � d S( N( R1 t updateR� ( R7 ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyR= � s c C s# | j j | � | j j | _ d S( N( R RM Rb ( R7 RO ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyRb � s c C s | j j � | j j | _ d S( N( R Rr Rf ( R7 ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyRf � s ( Rz R{ R| Rj Rg R� R> R? R= Rb Rf ( ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyR f s c B s e Z d Z e Z RS( s� 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. ( Rz R{ R| Rg RG ( ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyR � s c B s# e Z d Z e Z i Z d � Z RS( s� 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. c C sA t j | t j t j t j t t j j � � d t d t �d S( NR� R� ( R R� Ru R~ R Rs R R} R1 R Rg Rj ( R7 ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyR� � s *( Rz R{ R| Rj RA R; R� ( ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyR � s ( R| t typesR t utilR R R RV R Ru R} R! t __all__R t NameErrorR# RF R$ R/ R R R R ( ( ( s( /usr/lib64/python2.7/wsgiref/handlers.pyt <module> s& $ � =)
