ó TR¹Nc@sIdZyddlmZWn!ek r=ddlmZnXddlmZddlmZddlm Z m Z ddl m Z ddd d d d d dgZ defd„ƒYZdefd„ƒYZd efd„ƒYZdefd„ƒYZd efd„ƒYZd efd„ƒYZd efd„ƒYZd„ZdS(sH Base file upload handler classes, and the built-in concrete subclasses iÿÿÿÿ(tStringIO(tsettings(tImproperlyConfigured(tTemporaryUploadedFiletInMemoryUploadedFile(t importlibtUploadFileExceptiont StopUploadtSkipFiletFileUploadHandlertTemporaryFileUploadHandlertMemoryFileUploadHandlert load_handlertStopFutureHandlerscBseZdZRS(s6 Any error having to do with uploading files. (t__name__t __module__t__doc__(((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyRscBs#eZdZed„Zd„ZRS(s= This exception is raised when an upload must abort. cCs ||_dS(sÒ If ``connection_reset`` is ``True``, Django knows will halt the upload without consuming the rest of the upload. This will cause the browser to show a "connection reset" error. N(tconnection_reset(tselfR((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyt__init__scCs|jr dSdSdS(Nu StopUpload: Halt current upload.u,StopUpload: Consume request data, then halt.(R(R((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyt __unicode__%s (RRRtFalseRR(((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyRs cBseZdZRS(sX This exception is raised by an upload handler that wants to skip a given file. (RRR(((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyR+scBseZdZRS(s“ Upload handers that have handled a file and do not want future handlers to run should raise this exception instead of returning None. (RRR(((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyR 1scBsZeZdZdd Zd d„Zd d„Zd d d„Zd„Zd„Z d „Z RS( s3 Base class for streaming upload handlers. i@ii cCs1d|_d|_d|_d|_||_dS(N(tNonet file_namet content_typetcontent_lengthtcharsettrequest(RR((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyR>s     cCsdS(sÆ Handle the raw input from the client. Parameters: :input_data: An object that supports reading via .read(). :META: ``request.META``. :content_length: The (integer) value of the Content-Length header from the client. :boundary: The boundary from the Content-Type header. Be sure to prepend two '--'. N((Rt input_datatMETARtboundarytencoding((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pythandle_raw_inputEscCsO||_||_||_||_||_|dkrBi}n||_dS(s½ Signal that a new file has been started. Warning: As with any data from the client, you should not trust content_length (and sometimes won't even get it). N(t field_nameRRRRRtcontent_type_extra(RR!RRRRR"((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pytnew_fileWs       cCs tƒ‚dS(s{ Receive data from the streamed upload parser. ``start`` is the position in the file of the chunk. N(tNotImplementedError(Rtraw_datatstart((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pytreceive_data_chunkhscCs tƒ‚dS(sË Signal that a file has completed. File size corresponds to the actual size accumulated by all the chunks. Subclasses must should return a valid ``UploadedFile`` object. N(R$(Rt file_size((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyt file_completeoscCsdS(sƒ Signal that the upload is complete. Subclasses should perform cleanup that is necessary for this handler. N((R((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pytupload_completexsiN( RRRt chunk_sizeRRR R#R'R)R*(((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyR 8s     cBs2eZdZd„Zd„Zd„Zd„ZRS(sA Upload handler that streams data into a temporary file. cOstt|ƒj||ŽdS(N(tsuperR R(Rtargstkwargs((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyRƒscOsAtt|ƒj|||Žt|j|jd|jƒ|_dS(sK Create the file object to append to as data is coming in. iN(R,R R#RRRRtfile(RRR-R.((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyR#†scCs|jj|ƒdS(N(R/twrite(RR%R&((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyR'scCs#|jjdƒ||j_|jS(Ni(R/tseektsize(RR(((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyR)s (RRRRR#R'R)(((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyR s    cBs5eZdZdd„Zd„Zd„Zd„ZRS(sS File upload handler to stream uploads into memory (used for small files). cCs(|tjkrt|_n t|_dS(s` Use the content_length to signal whether or not this handler should be in use. N(RtFILE_UPLOAD_MAX_MEMORY_SIZERt activatedtTrue(RRRRRR((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyR šs cOs>tt|ƒj||Ž|jr:tƒ|_tƒ‚ndS(N(R,R R#R4RR/R (RR-R.((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyR#¥s  cCs$|jr|jj|ƒn|SdS(s4 Add the data to the StringIO file. N(R4R/R0(RR%R&((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyR'«s c CsW|js dS|jjdƒtd|jd|jd|jd|jd|d|jƒS( s: Return a file object if we're activated. NiR/R!tnameRR2R(R4R/R1RR!RRR(RR(((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyR)´s     N(RRRRR R#R'R)(((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyR •s   c OsÏ|jdƒ}|| ||d}}ytj|ƒ}WnGtk rf}td||fƒ‚ntk r„}tdƒ‚nXyt||ƒ}Wn'tk rÁtd||fƒ‚nX|||ŽS(sê Given a path to a handler, return an instance of that handler. E.g.:: >>> load_handler('django.core.files.uploadhandler.TemporaryFileUploadHandler', request) t.is.Error importing upload handler module %s: "%s"saError importing upload handler module. Is FILE_UPLOAD_HANDLERS a correctly defined list or tuple?s9Module "%s" does not define a "%s" upload handler backend(trfindRt import_modulet ImportErrorRt ValueErrortgetattrtAttributeError( tpathR-R.titmoduletattrtmodtetcls((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyR Æs  N(Rt cStringIORR:t django.confRtdjango.core.exceptionsRtdjango.core.files.uploadedfileRRt django.utilsRt__all__t ExceptionRRRR tobjectR R R R (((sL/home/panlixing/Python_Projects/gaeseries/django/core/files/uploadhandler.pyts&   G1