o wvXj @sdZddlZddlmZddlmZddlmZddlm Z ddl m Z ddl m Z dd l mZmZdd lmZdd lmZdd lmZdd lmZddlmZGdddZGdddZGdddeZGdddeZGdddeZ 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)parse)settings)StopFutureHandlers) QueryDict) ChunkIter)MultiPartParser)MultiPartParserError parse_header) force_str) renderers) ParseError) api_settings)jsonc@seZdZddZdS) DataAndFilescCs||_||_dS)N)datafiles)selfrrrS/var/www/html/myproject/venv/lib/python3.10/site-packages/rest_framework/parsers.py__init__s zDataAndFiles.__init__N)__name__ __module__ __qualname__rrrrrrs rc@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_contextrrrr&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 getreaderstrictrstrict_constantload ValueErrorr str)rrrrr"decoded_streamr#excrrrr7szJSONParser.parser) rrrr rr 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$rr%rread)rrrrr"rrrrLszFormParser.parserrrrrrr3Fr3c@r2)rzF Parser for multipart form data, which may include file data. zmultipart/form-dataNc Cs|pi}|d}|dtj}|j}||d<|j}zt||||}|\} } t| | WSt yB} zt dt | d} ~ ww)a  Parses the incoming bytestream as a multipart encoded form, and returns a DataAndFiles object. `.data` will be a `QueryDict` containing all the form parameters. `.files` will be a `QueryDict` containing all the form files. requestr" CONTENT_TYPEzMultipart form parse error - %sN) r$rr%METAcopyupload_handlersDjangoMultiPartParserrrrr r,) rrrrr6r"metar:parserrrr.rrrr\s   zMultiPartParser.parserrrrrrrVr5rc@s8eZdZdZdZdddZd ddZd d Zd 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. r6r"r@HTTP_CONTENT_TYPEr7HTTP_CONTENT_LENGTHCONTENT_LENGTHrNfilecSsg|]}|jr|jqSr) chunk_size).0xrrr sz*FileUploadParser.parse..ir?)r$rr%r8r: get_filenamer errorsintr+ TypeErrorhandle_raw_inputrminrlen enumeratenew_filerreceive_data_chunk file_complete)rrrrr6r"r<r:filename content_typecontent_lengthhandlerresultpossible_sizesrGchunkscountersindexchunk chunk_lengthfile_objrrrr}sp      zFileUploadParser.parsec Csz|ddWStyYnwz"|dj}t|d}|d}d|vr-||WSt|dWStttfy@YdSw)z Detects the uploaded file name. First searches a 'filename' url kwarg. Then tries to parse Content-Disposition header. kwargsrVr6HTTP_CONTENT_DISPOSITIONrF filename*N)KeyErrorr8r encodeget_encoded_filenamer AttributeErrorr+)rrrrr< disposition filename_parmrrrrKs   zFileUploadParser.get_filenamec CsTt|d}z|dd\}}}t|}W|Sttfy)t|d}Y|Sw)zw Handle encoded filenames per RFC6266. See also: https://tools.ietf.org/html/rfc2231#section-4 rd'rV)r splitrunquoter+ LookupError)rrjencoded_filenamecharsetlangrVrrrrgs  z%FileUploadParser.get_encoded_filenamer) rrrr rrLrrKrgrrrrr>ss C r>)r r&urllibr django.confrdjango.core.files.uploadhandlerr django.httprdjango.http.multipartparserrrr;rr django.utils.encodingr rest_frameworkr rest_framework.exceptionsr rest_framework.settingsr rest_framework.utilsrrrr!r3r>rrrrs(