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    h                     @   s  d dl mZ d dlmZ d dlmZmZ d dlZddlm	Z	 ddlm
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eeZeddG dd dZeddG dd dZ	d'dejdee dee fddZdeeef dee fddZededeeef defddZedddddededed ee deeef dee d!eeeef  defd"d#Ze	d'd$edeeef d!eeeef  defd%d&ZdS )(    )	dataclass)Enum)DictOptionalN   )	constants   )get_sessionhf_raise_for_statusvalidate_hf_hub_argsc                   @   s   e Zd ZdZdZdS )XetTokenTypereadwriteN)__name__
__module____qualname__READWRITE r   r   P/var/www/html/ai/venv/lib/python3.10/site-packages/huggingface_hub/utils/_xet.pyr      s    r   T)frozenc                   @   s   e Zd ZU eed< eed< dS )XetFileData	file_hashrefresh_routeN)r   r   r   str__annotations__r   r   r   r   r      s   
 r   c                   @   s&   e Zd ZU eed< eed< eed< dS )XetConnectionInfoaccess_tokenexpiration_unix_epochendpointN)r   r   r   r   r   intr   r   r   r   r      s   
 r   responser   returnc                 C   s   | du rdS z| j tj }tj| jv r| jtj d }n| j tj }W n
 ty-   Y dS w |dur4|ntj}|tj	rJ|
tj	d|d}t||dS )aa  
    Parse XET file metadata from an HTTP response.

    This function extracts XET file metadata from the HTTP headers or HTTP links
    of a given response object. If the required metadata is not found, it returns `None`.

    Args:
        response (`requests.Response`):
            The HTTP response object containing headers dict and links dict to extract the XET metadata from.
    Returns:
        `Optional[XetFileData]`:
            An instance of `XetFileData` containing the file hash and refresh route if the metadata
            is found. Returns `None` if the required metadata is missing.
    Nurl/)r   r   )headersr   HUGGINGFACE_HEADER_X_XET_HASH$HUGGINGFACE_HEADER_LINK_XET_AUTH_KEYlinks&HUGGINGFACE_HEADER_X_XET_REFRESH_ROUTEKeyErrorENDPOINT
startswithHUGGINGFACE_CO_URL_HOMEreplacerstripr   )r!   r   r   r   r   r   r   !parse_xet_file_data_from_response   s$   r0   r%   c              
   C   sP   z| t j }| t j }t| t j }W n tttfy    Y dS w t|||dS )a  
    Parse XET connection info from the HTTP headers or return None if not found.
    Args:
        headers (`Dict`):
           HTTP headers to extract the XET metadata from.
    Returns:
        `XetConnectionInfo` or `None`:
            The information needed to connect to the XET storage service.
            Returns `None` if the headers do not contain the XET connection info.
    N)r   r   r   )	r   !HUGGINGFACE_HEADER_X_XET_ENDPOINT%HUGGINGFACE_HEADER_X_XET_ACCESS_TOKENr    #HUGGINGFACE_HEADER_X_XET_EXPIRATIONr*   
ValueError	TypeErrorr   )r%   r   r   r   r   r   r   &parse_xet_connection_info_from_headersB   s   

r6   	file_datac                 C   s   | j du r	tdt| j |S )a  
    Utilizes the information in the parsed metadata to request the Hub xet connection information.
    This includes the access token, expiration, and XET service URL.
    Args:
        file_data: (`XetFileData`):
            The file data needed to refresh the xet connection information.
        headers (`Dict[str, str]`):
            Headers to use for the request, including authorization headers and user agent.
    Returns:
        `XetConnectionInfo`:
            The connection information needed to make the request to the xet storage service.
    Raises:
        [`~utils.HfHubHTTPError`]
            If the Hub API returned an error.
        [`ValueError`](https://docs.python.org/3/library/exceptions.html#ValueError)
            If the Hub API response is improperly formatted.
    Nz>The provided xet metadata does not contain a refresh endpoint.)r   r4   #_fetch_xet_connection_info_with_url)r7   r%   r   r   r   refresh_xet_connection_info[   s   
r9   )revisionr   params
token_typerepo_id	repo_typer:   r;   c              	   C   s@   |dur|nt j}| d| d| d| j d| 	}t|||S )a  
    Uses the repo info to request a xet access token from Hub.
    Args:
        token_type (`XetTokenType`):
            Type of the token to request: `"read"` or `"write"`.
        repo_id (`str`):
            A namespace (user or an organization) and a repo name separated by a `/`.
        repo_type (`str`):
            Type of the repo to upload to: `"model"`, `"dataset"` or `"space"`.
        revision (`str`, `optional`):
            The revision of the repo to get the token for.
        headers (`Dict[str, str]`):
            Headers to use for the request, including authorization headers and user agent.
        endpoint (`str`, `optional`):
            The endpoint to use for the request. Defaults to the Hub endpoint.
        params (`Dict[str, str]`, `optional`):
            Additional parameters to pass with the request.
    Returns:
        `XetConnectionInfo`:
            The connection information needed to make the request to the xet storage service.
    Raises:
        [`~utils.HfHubHTTPError`]
            If the Hub API returned an error.
        [`ValueError`](https://docs.python.org/3/library/exceptions.html#ValueError)
            If the Hub API response is improperly formatted.
    Nz/api/zs/z/xet-z-token/)r   r+   valuer8   )r<   r=   r>   r:   r%   r   r;   r#   r   r   r   (fetch_xet_connection_info_from_repo_infow   s   %"r@   r#   c                 C   s8   t  j|| |d}t| t|j}|du rtd|S )aS  
    Requests the xet connection info from the supplied URL. This includes the
    access token, expiration time, and endpoint to use for the xet storage service.
    Args:
        url: (`str`):
            The access token endpoint URL.
        headers (`Dict[str, str]`):
            Headers to use for the request, including authorization headers and user agent.
        params (`Dict[str, str]`, `optional`):
            Additional parameters to pass with the request.
    Returns:
        `XetConnectionInfo`:
            The connection information needed to make the request to the xet storage service.
    Raises:
        [`~utils.HfHubHTTPError`]
            If the Hub API returned an error.
        [`ValueError`](https://docs.python.org/3/library/exceptions.html#ValueError)
            If the Hub API response is improperly formatted.
    )r%   r#   r;   Nz6Xet headers have not been correctly set by the server.)r	   getr
   r6   r%   r4   )r#   r%   r;   respmetadatar   r   r   r8      s   
r8   )N)dataclassesr   enumr   typingr   r   requests r   r	   r
   r   r   r   r   r   Responser0   r6   r9   r@   r8   r   r   r   r   <module>   sx    
%

	)
