o ).hD@sdZddlZddlmZddlmZddlmZddlm Z ddlm Z ddlm Z dd l mZdd lmZdd lmZdd lmZdd lmZGdddZGdddZGdddeZGdddeZGdddeZ GdddeZdS)z Parsers are used to parse the content of incoming HTTP requests. They give us a generic way of being able to handle various media types on the request, such as form content or json encoded data. N)settings)StopFutureHandlers) QueryDict) ChunkIter)MultiPartParser)MultiPartParserError) renderers)parse_header_parameters) ParseError) api_settings)jsonc@seZdZddZdS) DataAndFilescCs||_||_dS)N)datafiles)selfrrrU/var/www/supernova/superenvnew/lib/python3.10/site-packages/rest_framework/parsers.py__init__s zDataAndFiles.__init__N)__name__ __module__ __qualname__rrrrrr s r c@seZdZdZdZdddZdS) BaseParserz All parsers should extend `BaseParser`, specifying a `media_type` attribute, and overriding the `.parse()` method. NcCstd)z Given a stream to read from, return the parsed representation. Should return parsed data, or a `DataAndFiles` object consisting of the parsed data and files. z.parse() must be overridden.)NotImplementedError)rstream media_typeparser_contextrrrparse%szBaseParser.parseNNrrr__doc__rrrrrrrsrc@s*eZdZdZdZejZej Z dddZ dS) JSONParserz& Parses JSON-serialized data. zapplication/jsonNc Csn|pi}|dtj}zt||}|jrtjnd}tj||dWSt y6}zt dt |d}~ww)zX Parses the incoming bytestream as JSON and returns the resulting data. encodingN)parse_constantzJSON parse error - %s) getrDEFAULT_CHARSETcodecs getreaderstrictr strict_constantload ValueErrorr str)rrrrr!decoded_streamr"excrrrr6szJSONParser.parser) rrrrrr JSONRendererrenderer_classr STRICT_JSONr'rrrrrr .s r c@eZdZdZdZdddZdS) FormParserz Parser for form data. z!application/x-www-form-urlencodedNcCs&|pi}|dtj}t||dS)zt Parses the incoming bytestream as a URL encoded form, and returns the resulting QueryDict. r!)r!)r#rr$rread)rrrrr!rrrrKszFormParser.parserrrrrrr2Er2c@r1)rzF Parser for multipart form data, which may include file data. zmultipart/form-dataNc Cs|pi}|d}|dtj}|j}||d<|j}zt||||}|\} } t| | WSt yB} zt dt | d} ~ ww)a  Parses the incoming bytestream as a multipart encoded form, and returns a DataAndFiles object. `.data` will be a `QueryDict` containing all the form parameters. `.files` will be a `QueryDict` containing all the form files. requestr! CONTENT_TYPEzMultipart form parse error - %sN) r#rr$METAcopyupload_handlersDjangoMultiPartParserrr rr r+) rrrrr5r!metar9parserrrr-rrrr[s   zMultiPartParser.parserrrrrrrUr4rc@s0eZdZdZdZdddZd ddZd d ZdS) FileUploadParserz& Parser for file upload data. z*/*zFFileUpload parse error - none of upload handlers can handle the streamz`Missing filename. Request should include a Content-Disposition header with a filename parameter.) unhandled no_filenameNc Cs|pi}|d}|dtj}|j}|j}||||}|s%t|jd|d|dd} zt|d|dd } Wn t t fyJd } Ynw|D]} | ||| d |} | d urgt id | d iSqMd d|D} t dg| }t||}d gt|}t|D]!\}} z | d || | |Wqty|d |d }Ynw|D]%}t|D]\}} t|}| |||}|||7<|d urnqqt|D]\}} | ||}|d urt id |iSqt|jd)a Treats the incoming bytestream as a raw file upload and returns a `DataAndFiles` object. `.data` will be None (we expect request body to be a file content). `.files` will be a `QueryDict` containing one 'file' element. r5r!r?HTTP_CONTENT_TYPEr6HTTP_CONTENT_LENGTHCONTENT_LENGTHrNfilecSsg|]}|jr|jqSr) chunk_size).0xrrr sz*FileUploadParser.parse..ir>)r#rr$r7r9 get_filenamer errorsintr* TypeErrorhandle_raw_inputr minrlen enumeratenew_filerreceive_data_chunk file_complete)rrrrr5r!r;r9filename content_typecontent_lengthhandlerresultpossible_sizesrFchunkscountersindexchunk chunk_lengthfile_objrrrr|sp      zFileUploadParser.parsec Cstz|ddWStyYnwz|dj}t|d\}}d|vr(|dWS|dWStttfy9YdSw)z Detects the uploaded file name. First searches a 'filename' url kwarg. Then tries to parse Content-Disposition header. kwargsrUr5HTTP_CONTENT_DISPOSITIONz filename*N)KeyErrorr7r AttributeErrorr*)rrrrr; dispositionparamsrrrrJs    zFileUploadParser.get_filenamer)rrrrrrKrrJrrrrr=rs  Cr=)rr% django.confrdjango.core.files.uploadhandlerr django.httprdjango.http.multipartparserrrr:rrest_frameworkrrest_framework.compatr rest_framework.exceptionsr rest_framework.settingsr rest_framework.utilsr r rr r2r=rrrrs&