h9@dZddlmZddlZddlZddlZddlZddlZddlm Z ddlm Z ddlm Z ddlm Z ddl mZd Zd Zd Zd Zd ZdZdZdZejeZdZefdZefdZd$dZdZdZdZ dZ!dZ"dZ#dZ$dZ%dZ&dZ'd Z(d!Z)Gd"d#e*Z+dS)%z4Shared utilities used by both downloads and uploads.)absolute_importN)parse_qs) urlencode)urlsplit) urlunsplit)commonrangez content-rangezcontent-encodingzCurrently using crcmod in pure python form. This is a slow implementation. Python 3 has a faster implementation, `google-crc32c`, which will be used if it is installed.zx-goog-generationz x-goog-hashzx-goog-stored-content-encodingzNo {checksum_type} checksum was returned from the service while downloading {} (which happens for composite objects), so client-side content integrity checking is not being performed.cdS)zSimple default callback.Nr c/var/www/html/e360mart/e360mart_env/lib/python3.11/site-packages/google/resumable_media/_helpers.py do_nothingr5r cp||}||vr |tj|d|||S)aChecks that a specific header is in a headers dictionary. Args: response (object): An HTTP response object, expected to have a ``headers`` attribute that is a ``Mapping[str, str]``. name (str): The name of a required header. get_headers (Callable[Any, Mapping[str, str]]): Helper to get headers from an HTTP response. callback (Optional[Callable]): A callback that takes no arguments, to be executed when an exception is being raised. Returns: str: The desired header. Raises: ~google.resumable_media.common.InvalidResponse: If the header is missing. z$Response headers must contain header)rInvalidResponse)responsename get_headerscallbackheaderss r header_requiredr9sR&k(##G 7 $ dict): returns response headers. media_url (str): The URL containing the media to be downloaded. checksum_type Optional(str): The checksum type to read from the headers, exactly as it will appear in the headers (case-sensitive). Must be "md5", "crc32c" or None. Returns: Tuple (Optional[str], object): The expected checksum of the response, if it can be detected from the ``X-Goog-Hash`` header, and the appropriate checksum object for the expected checksum. rAcrc32cN4checksum must be ``'md5'``, ``'crc32c'`` or ``None``rArOchecksum_labelNrCrA) ValueError_parse_checksum_headerget _HASH_HEADER_MISSING_CHECKSUMformatupper_LOGGERinfo_DoNothingHashhashlibrAr1)rr media_urlrDrexpected_checksummsgchecksum_objects r _get_expected_checksumrcs 333OPPP + + ++h''2 KK % %x      $#**)<)<)>)>+C LL   ,..OO%%")+--"4"6"6 (**  //r c|dvrtd|dvr6||}t|t||}nd}|S)aGet the computed checksum and checksum object from the response headers. Args: response (~requests.Response): The HTTP response object. get_headers (callable: response->dict): returns response headers. checksum_type Optional(str): The checksum type to read from the headers, exactly as it will appear in the headers (case-sensitive). Must be "md5", "crc32c" or None. Returns: Tuple (Optional[str], object): The checksum of the response, if it can be detected from the ``X-Goog-Hash`` header, and the appropriate checksum object for the expected checksum. rNrPrQrRN)rTrUrVrW)rrrDrremote_checksums r #_get_uploaded_checksum_from_headersrfsp333OPPP + + ++h''0 KK % %x     r c~|dSg}|dD]H}|dd\}}||kr||It|dkrdSt|dkr|dSt j|d|||)aDParses the checksum header from an ``X-Goog-Hash`` value. .. _header reference: https://cloud.google.com/storage/docs/ xml-api/reference-headers#xgooghash Expects ``header_value`` (if not :data:`None`) to be in one of the three following formats: * ``crc32c=n03x6A==`` * ``md5=Ojk9c3dhfxgoKVVHYwFbHQ==`` * ``crc32c=n03x6A==,md5=Ojk9c3dhfxgoKVVHYwFbHQ==`` See the `header reference`_ for more information. Args: header_value (Optional[str]): The ``X-Goog-Hash`` header from a download response. response (~requests.Response): The HTTP response object. checksum_label (str): The label of the header value to read, as in the examples above. Typically "md5" or "crc32c" Returns: Optional[str]: The expected checksum of the response, if it can be detected from the ``X-Goog-Hash`` header; otherwise, None. Raises: ~google.resumable_media.common.InvalidResponse: If there are multiple checksums of the requested type in ``header_value``. N,=rz.X-Goog-Hash header had multiple ``{}`` values.)splitlstripappendlenrrrY) header_valuerrSmatcheschecksumrvalues r rUrUs<tG &&s++""nnS!,, e ;;==N * * NN5 ! ! ! 7||qt W  qz$  < C CN S S      r c|dkrtjS|dkrtS|dStd)z~Respond with a checksum object for a supported type, if not None. Raises ValueError if checksum_type is unsupported. rArONrP)r^rAr1rTrCs r _get_checksum_objectrtGsL {}} ( " "!###  tOPPPr ct||}|td}|dSt|S)aParses the generation header from an ``X-Goog-Generation`` value. Args: response (~requests.Response): The HTTP response object. get_headers (callable: response->dict): returns response headers. Returns: Optional[long]: The object generation from the response, if it can be detected from the ``X-Goog-Generation`` header; otherwise, None. N)rV_GENERATION_HEADERint)rrrobject_generations r _parse_generation_headerryVsBk(##G $6== t$%%%r ct|\}}}}}t|}|dd}|dSt|dS)zRetrieve the object generation query param specified in the media url. Args: media_url (str): The URL containing the media to be downloaded. Returns: long: The object generation from the media url if exists; otherwise, None. generationNr)rrrVrw)r__query query_paramsrxs r _get_generation_from_urlrjs\!++Aq!UAE??L$((t<< t$Q'(((r ct|dkr|St|\}}}}}t|}i||}t|d}t |||||fS)aAdd query parameters to a base url. Args: media_url (str): The URL containing the media to be downloaded. query_params (dict): Names and values of the query parameters to add. Returns: str: URL with additional query strings appended. rT)doseq)rnrrrr) r_r~schemenetlocpathr}fragparams new_paramss r add_query_parametersr~sz <A(0(;(;%FFD% e__F+F+l+J j - - -E vvtUD9 : ::r c||}|tdko|tdkS)aReturns True if the object was served decompressed. This happens when the "x-goog-stored-content-encoding" header is "gzip" and "content-encoding" header is not "gzip". See more at: https://cloud.google.com/storage/docs/transcoding#transcoding_and_gzip Args: response (~requests.Response): The HTTP response object. get_headers (callable: response->dict): returns response headers. Returns: bool: Returns True if decompressive transcoding has occurred; otherwise, False. gzip)rV_STORED_CONTENT_ENCODING_HEADERCONTENT_ENCODING_HEADER)rrrs r _is_decompressive_transcodingrsGk(##G 344> ; KK/ 0 0F :r ceZdZdZdZdS)r]zDo-nothing hash object. Intended as a stand-in for ``hashlib.md5`` or a crc32c checksum implementation in cases where it isn't necessary to compute the hash. cdS)zDo-nothing ``update`` method. Intended to match the interface of ``hashlib.md5`` and other checksums. Args: unused_chunk (bytes): A chunk of data. Nr )self unused_chunks r updatez_DoNothingHash.updaterr N)__name__ __module__ __qualname____doc__rr r r r]r]s-      r r])r),r __future__rrGr^loggingr r: urllib.parserrrrgoogle.resumable_mediar RANGE_HEADERCONTENT_RANGE_HEADERrr<rvrWrrX getLoggerrr[rrrr'r1r/rErLrcrfrUrtryrrrobjectr]r r r rs8;:&&&&&&  !!!!!!""""""!!!!!!######)))))) &,- ) "B$ ' H % %###;E:KU@<<<<8,    * * *'0'0'0T82 2 2 j Q Q Q&&&()))(;;;*"     V     r