
    LqjW	                    Z    d Z ddlmZ ddlZddlZddlmZ d
ddZddZddZ	ddZ
dd	Zy)a:  Aria HMAC-Webhook Verification (KAR-232).

Helper functions fuer Webhook-Signaturen von GitHub, Linear, Telegram.
Nutzt hmac.compare_digest (timing-safe).

Verwendung in Webhook-Receivers (z.B. zukuenftige aria-api Routes):
    from aria_hmac import verify_github, verify_linear, verify_telegram

    @app.post("/webhook/github")
    async def github_webhook(req):
        body = await req.body()
        sig = req.headers.get("X-Hub-Signature-256", "")
        if not verify_github(body, sig, SECRET):
            return Response(status_code=401)
        # ... process
    )annotationsN)Callablec                    |r|j                  |      syt        j                  |j                         | t        j
                        j                         }|t        |      d }t        j                  ||      S )zGeneric HMAC-SHA256 verify.FN)	
startswithhmacnewencodehashlibsha256	hexdigestlencompare_digest)bodysignature_headersecretprefixexpectedgivens         /root/aria/lib/aria_hmac.py_verify_hmac_sha256r      s^    #3#>#>v#Fxxw~~>HHJHS[\*Ex//    c                     t        | ||d      S )z)GitHub: X-Hub-Signature-256: sha256=<hex>sha256=)r   )r   )r   r   r   s      r   verify_githubr       s    t%5viPPr   c                    |syt        j                  |j                         | t        j                        j                         }t        j                  ||      S )z+Linear: Linear-Signature: <hex> (no prefix)F)r   r   r	   r
   r   r   r   )r   r   r   r   s       r   verify_linearr   %   sA    xxw~~>HHJHx)9::r   c                >    t        j                  |xs d|xs d      S )uJ   Telegram: X-Telegram-Bot-Api-Secret-Token header — fixed-string compare. )r   r   )r   secret_tokenr   s      r   verify_telegramr    -   s    |1r8>rBBr   c                   |syt        d |j                  d      D              }|j                  dd      }|j                  dd      }|r|sy| d| j                  dd	
       j	                         }t        j                  |j	                         |t        j                        j                         }t        j                  ||      S )z)Stripe: Stripe-Signature: t=<ts>,v1=<hex>Fc              3  J   K   | ]  }d |v s|j                  d d        yw)=   N)split).0ps     r   	<genexpr>z verify_stripe.<locals>.<genexpr>6   s!     RQPQaRs   	##,tr   v1.zutf-8replace)errors)dictr%   getdecoder	   r   r   r
   r   r   r   )r   r   r   partstsr+   payloadr   s           r   verify_striper5   2   s    R*:*@*@*ERRE	3	B	4	BRAdkk')k<=>EEGGxx'..AKKMHx,,r   )r   )
r   bytesr   strr   r7   r   r7   returnbool)r   r6   r   r7   r   r7   r8   r9   )r   r6   r   r7   r   r7   r8   r9   )__doc__
__future__r   r   r
   typingr   r   r   r   r    r5    r   r   <module>r>      s3     #   0Q
;C
-r   