%9j9<dZddlmZddlZddlZddlZddlZddlZddlm Z ddlm Z ddlm Z ddlm Z ddl mZd Zd Zd Zd Zd ZdZdZdZej.eZdZefdZefdZd#dZdZdZdZ dZ!dZ"dZ#dZ$dZ%dZ&dZ'dZ(d Z)Gd!d"e*Z+y)$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.cy)zSimple default callback.Nr [/var/www/html/truck-me/venv/lib/python3.12/site-packages/google/resumable_media/_helpers.py do_nothingr5r c`||}||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_requiredr9sB&(#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. r@crc32cN4checksum must be ``'md5'``, ``'crc32c'`` or ``None``r@rNchecksum_labelNrBr@) ValueError_parse_checksum_headerget _HASH_HEADER_MISSING_CHECKSUMformatupper_LOGGERinfo_DoNothingHashhashlibr@r0)rr media_urlrCrexpected_checksummsgchecksum_objects r _get_expected_checksumrbs 33OPP + +h'2 KK %x    $#**)<)<)>+C LL ,.O  //%")++-  // #5"6  //!(*  //r c|dvr td|dvr+||}t|jt||}|Sd}|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. rMrOrPrQN)rSrTrUrV)rrrCrremote_checksums r #_get_uploaded_checksum_from_headersres[33OPP + +h'0 KK %x    r c>|yg}|jdD]<}|jdd\}}|j|k(s,|j|>t|dk(ryt|dk(r|dSt j |dj |||)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.)splitlstripappendlenrrrX) header_valuerrRmatcheschecksumrvalues r rTrTs<G &&s+"nnS!, e ;;=N * NN5 ! "  7|q W qz$$  < C CN S     r cn|dk(rtjS|dk(r tS|ytd)z~Respond with a checksum object for a supported type, if not None. Raises ValueError if checksum_type is unsupported. r@rNNrO)r]r@r0rSrBs r _get_checksum_objectrsGs> {{} ( "!##  OPPr cZ||}|jtd}|yt|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)rU_GENERATION_HEADERint)rrrobject_generations r _parse_generation_headerrxVs5(#G $6= $%%r ct|\}}}}}t|}|jdd}|yt|dS)zRetrieve the object generation query param specified in the media url. Args: media_url (str): The URL containing the media to be downloaded. Returns: long: The object generation from the media url if exists; otherwise, None. generationNr)rrrUrv)r^_query query_paramsrws r _get_generation_from_urlr~jsO!+Aq!UAE?L$((t< $Q'((r ct|dk(r|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)rmrrrr) r^r}schemenetlocpathr|fragparams new_paramss r add_query_parametersr~sf <A(0(;%FFD% e_F+F+l+J j -E vvtUD9 ::r cv||}|jtdk(xr|jtdk7S)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)rU_STORED_CONTENT_ENCODING_HEADERCONTENT_ENCODING_HEADER)rrrs r _is_decompressive_transcodingrs<(#G 34> ; KK/ 0F :r ceZdZdZdZy)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. cy)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\)g@),r __future__rrFr]loggingrr9 urllib.parserrrrgoogle.resumable_mediar RANGE_HEADERCONTENT_RANGE_HEADERrr;rurVrrW getLoggerrrZrrrr&r0r.rDrKrbrerTrsrxr~rrobjectr\r r r rs;&  !"!#) &,- ) "B$ '  H %#;E:KU@<8,  *'0T82 j Q&()(;*" V r