ַiJddlmZGddeZGddeZdS)) FileResponsecBeZdZdZdZdeddfdZdZdZdS) RangedFileReaderz Wraps a file like object with an iterator that runs over part (or all) of the file defined by start and stop. Blocks of block_size will be returned from the starting position, up to, but not including the stop point. i rinfNc||_t|j|_|p tj|_||_||_dS)a5 Args: file_like (File): A file-like object. start (int): Where to start reading the file. stop (Optional[int]:float): Where to end reading the file. Defaults to infinity. block_size (Optional[int]): The block_size to read with. N)flenreadsizer block_sizestartstop)self file_liker rr s P/srv/django_bis/venv311/lib/python3.11/site-packages/ranged_response/__init__.py__init__zRangedFileReader.__init__ sF && $C(8(C  c#K|j|j|j}||jkrT|jt |j|j|z }|sdS|V||jz }||jkRdSdS)z+ Reads the data in chunks. N)rseekr rr minr )rpositiondatas r__iter__zRangedFileReader.__iter__s  DJ:""6;;s4?DI4HIIJJD JJJ  'H """"""rc.|rd|vrdSg}|dd\}}|}|dkrdS|dD]}|}d|vrdS|dr|t |z}|dkrd}|}nG|dd\}}t |}|rt |dzn|}||krdS|||f|S)a Parses a range header into a list of two-tuples (start, stop) where `start` is the starting byte of the range (inclusive) and `stop` is the ending byte position of the range (exclusive). Args: header (str): The HTTP_RANGE request header. resource_size (int): The size of the file in bytes. Returns: None if the value of the header is not syntatically valid. =Nbytes,-r)splitstriplower startswithintappend) rheader resource_sizerangesunitsrange_valr rs rparse_range_headerz#RangedFileReader.parse_range_header)s? F**4 S!,, v ##%% G  4<<$$ ) )C))++C#~~tt~~c"" &C0199E$"iiQ// tE )-?s4yy1}}-D==44 MM5$- ( ( ( ( r) __name__ __module__ __qualname____doc__r floatrrr,rrrrsf J()e      ( ( (00000rrc(eZdZdZfdZdZxZS)RangedFileResponsez This is a modified FileResponse that returns `Content-Range` headers with the response, so browsers that request the file, can stream the response properly. ct||_tt|j|jg|Ri|d|jvr"||jddSdS)a RangedFileResponse constructor also requires a request, which checks whether range headers should be added to the response. Args: request(WGSIRequest): The Django request object. file (File): A file-like object. HTTP_RANGEN)r ranged_filesuperr4rMETAadd_range_headers)rrequestfileargskwargs __class__s rrzRangedFileResponse.__init__cs,D110 $''0   #   '-    7< ' '  " "7< #= > > > > > ( 'rcfd|d<|jj} |j||}n#t$rd}YnwxYw|lt |dkr[|d\}}||kr d|_dS||kr|}||j_||j_d||dz |fz|d<||z |d <d |_dSdSdS) a Adds several headers that are necessary for a streaming file response, in order for Safari to play audio files. Also sets the HTTP status_code to 206 (partial content). Args: range_header (str): Browser HTTP_RANGE request header. rz Accept-RangesNrrizbytes %d-%d/%dz Content-RangezContent-Length)r7r r, ValueErrorr status_coder r)r range_headerr r(r rs rr:z$RangedFileResponse.add_range_headersts!(_$ %88tLLFF   FFF   #f++"2"2 )KE4}}#& t||%*D  "$(D  !$4tax7N$ND !%)E\D! ""D     "2"2s / >>)r-r.r/r0rr: __classcell__)r?s@rr4r4\sQ ?????"#######rr4N)django.http.responserobjectrr4r2rrrHs~------UUUUUvUUUp5#5#5#5#5#5#5#5#5#5#r