
    Peb                     0   d dl Z d dlmZ d dlmZmZmZmZmZm	Z	 d dl
mZmZmZmZmZ d dlmZ d dlmZ  G d de      Z G d	 d
e      Z G d de      Z G d de      Z G d de      Z G d de      Z G d de      Z G d de      ZeeeeeeedZy)    N)BytesIO)SIGNED_HEADERS_BLACKLIST"STREAMING_UNSIGNED_PAYLOAD_TRAILERUNSIGNED_PAYLOAD
BaseSigner_get_body_as_dict_host_from_url)HTTPHeadersawscrtparse_qsurlsplit
urlunsplit)NoCredentialsError)percent_encode_sequencec                       e Zd ZdZg dZej                  j                  j                  Z	dZ
dZd Zd Zd Zd Zd Zd Zd	 Zd
 Zd Zd Zy)CrtSigV4AuthTAuthorizationz
X-Amz-DateX-Amz-Content-SHA256zX-Amz-Security-Tokenc                 <    || _         || _        || _        d | _        y Ncredentials_service_name_region_name_expiration_in_secondsselfr   service_nameregion_names       3/usr/lib/python3/dist-packages/botocore/crt/auth.py__init__zCrtSigV4Auth.__init__*   "    &)'&*#    c                     |j                   j                  di       }|j                  d      }t        |t              xr |j                  d      dk(  S Nchecksumrequest_algorithmintrailercontextget
isinstancedictr   requestchecksum_context	algorithms       r!   _is_streaming_checksum_payloadz+CrtSigV4Auth._is_streaming_checksum_payload0   J    "??..z2>$(()<=	)T*Oy}}T/Bi/OOr$   c                    | j                   
t               t        j                  j                         j	                  t        j
                  j                        }| j                  |      }| j                  |       t        j                  j                  j                  | j                   j                  | j                   j                  | j                   j                        }| j!                  |      rt"        }n| j%                  |      r|r|}n	d }nt&        }| j)                  |      r%t        j                  j*                  j,                  }n$t        j                  j*                  j.                  }t        j                  j1                  t        j                  j2                  j4                  | j6                  || j8                  | j:                  || j<                  | j>                  | j@                  ||| jB                        }| jE                  |      }t        j                  jG                  ||      }	|	jI                          | jK                  ||       y N)tzinfo)access_key_idsecret_access_keysession_token)r3   signature_typecredentials_providerregionservicedateshould_sign_headeruse_double_uri_encodeshould_normalize_uri_pathsigned_body_valuesigned_body_header_typeexpiration_in_seconds)&r   r   datetimeutcnowreplacetimezoneutc_get_existing_sha256_modify_request_before_signingr   authAwsCredentialsProvider
new_static
access_key
secret_keytokenr4   r   _should_sha256_sign_payloadr   !_should_add_content_sha256_headerAwsSignedBodyHeaderTypeX_AMZ_CONTENT_SHA_256NONEAwsSigningConfigAwsSigningAlgorithmV4_SIGNATURE_TYPEr   r   _should_sign_header_USE_DOUBLE_URI_ENCODE_SHOULD_NORMALIZE_URI_PATHr   _crt_request_from_aws_requestaws_sign_requestresult_apply_signing_changes
r   r1   datetime_nowexisting_sha256r=   explicit_payloadbody_headersigning_configcrt_requestfutures
             r!   add_authzCrtSigV4Auth.add_auth5   s   #$&&  ((//199$$(( : 

 33G<++G4%{{AALL**55"..99**00  M  
 ..w7A--g6#2 #' /112BC33II  !++==BBK55kk5588//!5$$&&#77"&"="=&*&E&E.$/"&"="= 6 
 88A--k>J##G[9r$   c                    t        |j                        }|j                  r|j                  nd}|j                  r]g }|j                  j	                         D ]&  \  }}t        |      }|j                  | d|        ( |dz   dj                  |      z   }n|j                  r| d|j                   }t        j                  j                  |j                  j	                               }d }|j                  r8t        |j                  d      r|j                  }nt        |j                        }t        j                  j!                  |j"                  |||      }	|	S N/=?&seek)methodpathheadersbody_streamr   urlru   paramsitemsstrappendjoinqueryr   httpHttpHeadersrv   bodyhasattrr   HttpRequestrt   
r   aws_request	url_partscrt_patharrayparamvaluecrt_headerscrt_body_streamrj   s
             r!   r`   z*CrtSigV4Auth._crt_request_from_aws_requestn   6   [__-	%.^^9>>E + 2 2 8 8 : 1uE
waw/01  #~7H__"1Y__$56Hkk--k.A.A.G.G.IJ {''0"-"2"2")+*:*:";kk--%%'	 . 
 r$   c                 ^    t        j                  t        |j                              |_        y r   r
   
from_pairslistrv   r   r   signed_crt_requests      r!   rc   z#CrtSigV4Auth._apply_signing_changes   $    )44#++,
r$   c                 .    |j                         t        vS r   lowerr   r   namekwargss      r!   r]   z CrtSigV4Auth._should_sign_header       zz|#;;;r$   c                     | j                   D ]  }||j                  v s|j                  |=   d|j                  vr#t        |j                        |j                  d<   y y Nhost_PRESIGNED_HEADERS_BLOCKLISTrv   r	   ry   r   r1   hs      r!   rM   z+CrtSigV4Auth._modify_request_before_signing   [     22 	'AGOO#OOA&	' (&4W[[&AGOOF# )r$   c                 8    |j                   j                  d      S Nr   rv   r-   r   r1   s     r!   rL   z!CrtSigV4Auth._get_existing_sha256       ""#9::r$   c                 r    |j                   j                  d      sy|j                  j                  dd      S NhttpsTpayload_signing_enabledry   
startswithr,   r-   r   s     r!   rT   z(CrtSigV4Auth._should_sha256_sign_payload   1    {{%%g.
 ""#<dCCr$   c                 
    |d uS r    r   rg   s     r!   rU   z.CrtSigV4Auth._should_add_content_sha256_header       t++r$   N)__name__
__module____qualname__REQUIRES_REGIONr   r   rN   AwsSignatureTypeHTTP_REQUEST_HEADERSr\   r^   r_   r"   r4   rl   r`   rc   r]   rM   rL   rT   rU   r   r$   r!   r   r      sh    O$  kk22GGO!!%+P
7:r<
<B;D,r$   r   c                   2     e Zd ZdZdZd Z fdZd Z xZS )CrtS3SigV4AuthFc                      y r   r   r   s     r!   rL   z#CrtS3SigV4Auth._get_existing_sha256       r$   c                    |j                   j                  d      }t        |dd       }|i }|j                  dd       }||S d}|j                   j                  di       }|j                  d      }t        |t              r|j                  d      dk(  r|d	   }|j
                  j                  d
      r||j                  vry|j                   j                  dd      ryt        | %  |      S )Nclient_configs3r   Content-MD5r'   r(   r)   headerr   r   Thas_streaming_inputF)
r,   r-   getattrr.   r/   ry   r   rv   superrT   )	r   r1   r   	s3_configsign_payloadchecksum_headerr2   r3   	__class__s	           r!   rT   z*CrtS3SigV4Auth._should_sha256_sign_payload   s      ++O<M46	 I !}}%>E# ("??..z2>$(()<=	i&9==+>(+J'/O&&w/goo5 ??4e< w27;;r$   c                      yNTr   r   s     r!   rU   z0CrtS3SigV4Auth._should_add_content_sha256_header   r   r$   	r   r   r   r^   r_   rL   rT   rU   __classcell__r   s   @r!   r   r      s    "!&'<Rr$   r   c                       e Zd ZdZg dZej                  j                  j                  Z	dZ
dZd Zd Zd Zd Zd Zd Zd	 Zd
 Zd Zd Zy)CrtSigV4AsymAuthTr   c                 <    || _         || _        || _        d | _        y r   r   r   s       r!   r"   zCrtSigV4AsymAuth.__init__   r#   r$   c                    | j                   
t               t        j                  j                         j	                  t        j
                  j                        }| j                  |      }| j                  |       t        j                  j                  j                  | j                   j                  | j                   j                  | j                   j                        }| j!                  |      rt"        }n| j%                  |      r|r|}n	d }nt&        }| j)                  |      r%t        j                  j*                  j,                  }n$t        j                  j*                  j.                  }t        j                  j1                  t        j                  j2                  j4                  | j6                  || j8                  | j:                  || j<                  | j>                  | j@                  ||| jB                        }| jE                  |      }t        j                  jG                  ||      }	|	jI                          | jK                  ||       y r7   )&r   r   rG   rH   rI   rJ   rK   rL   rM   r   rN   rO   rP   rQ   rR   rS   r4   r   rT   r   rU   rV   rW   rX   rY   rZ   V4_ASYMMETRICr\   r   r   r]   r^   r_   r   r`   ra   rb   rc   rd   s
             r!   rl   zCrtSigV4AsymAuth.add_auth   s   #$&&  ((//199$$(( : 

 33G<++G4%{{AALL**55"..99**00  M  
 ..w7A--g6#2 #' /112BC33II  !++==BBK55kk55CC//!5$$&&#77"&"="=&*&E&E.$/"&"="= 6 
 88A--k>J##G[9r$   c                    t        |j                        }|j                  r|j                  nd}|j                  r]g }|j                  j	                         D ]&  \  }}t        |      }|j                  | d|        ( |dz   dj                  |      z   }n|j                  r| d|j                   }t        j                  j                  |j                  j	                               }d }|j                  r8t        |j                  d      r|j                  }nt        |j                        }t        j                  j!                  |j"                  |||      }	|	S rn   rx   r   s
             r!   r`   z.CrtSigV4AsymAuth._crt_request_from_aws_request3  r   r$   c                 ^    t        j                  t        |j                              |_        y r   r   r   s      r!   rc   z'CrtSigV4AsymAuth._apply_signing_changesQ  r   r$   c                 .    |j                         t        vS r   r   r   s      r!   r]   z$CrtSigV4AsymAuth._should_sign_headerW  r   r$   c                     | j                   D ]  }||j                  v s|j                  |=   d|j                  vr#t        |j                        |j                  d<   y y r   r   r   s      r!   rM   z/CrtSigV4AsymAuth._modify_request_before_signingZ  r   r$   c                 8    |j                   j                  d      S r   r   r   s     r!   rL   z%CrtSigV4AsymAuth._get_existing_sha256d  r   r$   c                     |j                   j                  di       }|j                  d      }t        |t              xr |j                  d      dk(  S r&   r+   r0   s       r!   r4   z/CrtSigV4AsymAuth._is_streaming_checksum_payloadg  r5   r$   c                 r    |j                   j                  d      sy|j                  j                  dd      S r   r   r   s     r!   rT   z,CrtSigV4AsymAuth._should_sha256_sign_payloadl  r   r$   c                 
    |d uS r   r   r   s     r!   rU   z2CrtSigV4AsymAuth._should_add_content_sha256_headerv  r   r$   N)r   r   r   r   r   r   rN   r   r   r\   r^   r_   r"   rl   r`   rc   r]   rM   rL   r4   rT   rU   r   r$   r!   r   r      sh    O$  kk22GGO!!%+7:r<
<B;P
D,r$   r   c                   2     e Zd ZdZdZd Z fdZd Z xZS )CrtS3SigV4AsymAuthFc                      y r   r   r   s     r!   rL   z'CrtS3SigV4AsymAuth._get_existing_sha256  r   r$   c                 4   |j                   j                  d      }t        |dd       }|i }|j                  dd       }||S |j                  j	                  d      rd|j
                  vry|j                   j                  dd      ryt        |   |      S )	Nr   r   r   r   r   Tr   F)r,   r-   r   ry   r   rv   r   rT   )r   r1   r   r   r   r   s        r!   rT   z.CrtS3SigV4AsymAuth._should_sha256_sign_payload  s      ++O<M46	 I !}}%>E# &&w/GOO3 ??4e< w27;;r$   c                      yr   r   r   s     r!   rU   z4CrtS3SigV4AsymAuth._should_add_content_sha256_header  r   r$   r   r   s   @r!   r   r   {  s    "!&"<Hr$   r   c                   z     e Zd ZdZej
                  j                  j                  Zef fd	Z	 fdZ
 fdZ xZS )CrtSigV4AsymQueryAuth  c                 6    t         |   |||       || _        y r   r   r"   r   r   r   r   r    expiresr   s        r!   r"   zCrtSigV4AsymQueryAuth.__init__       	lK@&-#r$   c                    t         |   |       |j                  j                  d      }|dk(  r|j                  d= t	        |j
                        }t        |j                  d      }|j                         D ci c]  \  }}||d    }}}|j                  r!|j                  t        |             d|_	        t        |      }|}	|	d   |	d   |	d   ||	d	   f}
t        |
      |_        y c c}}w 
Nzcontent-typez0application/x-www-form-urlencoded; charset=utf-8T)keep_blank_valuesr             )r   rM   rv   r-   r   ry   r   r   r{   dataupdater   r   r   )r   r1   content_typer   query_string_partskv
query_dictnew_query_stringpnew_url_partsr   s              r!   rM   z4CrtSigV4AsymQueryAuth._modify_request_before_signing  s    .w7 **>:MM/ W[[)	 &iooN*<*B*B*DE$!Qa1gE
E << /89GL2:> 1qtQqT+;QqTB /1 Fs   =C.c                     t         |   ||       t        |j                        j                  }t        |j
                        }t        |d   |d   |d   ||d   f      |_        y Nr   r   r   r   r   rc   r   ru   r   ry   r   r   r   r   signed_queryr   r   s        r!   rc   z,CrtSigV4AsymQueryAuth._apply_signing_changes  a    &{4FG 2 7 78>>[__% %adAaD!A$ad%KLr$   r   r   r   DEFAULT_EXPIRESr   rN   r   HTTP_REQUEST_QUERY_PARAMSr\   r"   rM   rc   r   r   s   @r!   r   r     s:    Okk22LLO ?N.(0TM Mr$   r   c                   $    e Zd ZdZdZdZd Zd Zy)CrtS3SigV4AsymQueryAuthzS3 SigV4A auth using query parameters.
    This signer will sign a request using query parameters and signature
    version 4A, i.e a "presigned url" signer.
    Fc                      yNFr   r   s     r!   rT   z3CrtS3SigV4AsymQueryAuth._should_sha256_sign_payload      
 r$   c                      yr  r   r   s     r!   rU   z9CrtS3SigV4AsymQueryAuth._should_add_content_sha256_header      r$   Nr   r   r   __doc__r^   r_   rT   rU   r   r$   r!   r  r    s     #!&r$   r  c                   z     e Zd ZdZej
                  j                  j                  Zef fd	Z	 fdZ
 fdZ xZS )CrtSigV4QueryAuthr   c                 6    t         |   |||       || _        y r   r   r   s        r!   r"   zCrtSigV4QueryAuth.__init__  r   r$   c                 @   t         
|   |       |j                  j                  d      }|dk(  r|j                  d= t	        |j
                        }t        |j                  d      j                         D ci c]  \  }}||d    }}}|j                  r"|j                  |j                         i |_	        |j                  r!|j                  t        |             d|_        t        |      }|}|d   |d   |d   ||d	   f}	t        |	      |_        y c c}}w r   )r   rM   rv   r-   r   ry   r   r   r{   rz   r   r   r   r   r   )r   r1   r   r   r   r   r   r   r   r   r   s             r!   rM   z0CrtSigV4QueryAuth._modify_request_before_signing  s   .w7 **>:MM/ W[[)	 !4eg	
1 qtG

 
 >>gnn-GN << /89GL2:> 1qtQqT+;QqTB /?
s   ;Dc                     t         |   ||       t        |j                        j                  }t        |j
                        }t        |d   |d   |d   ||d   f      |_        y r   r   r   s        r!   rc   z(CrtSigV4QueryAuth._apply_signing_changesB  r   r$   r  r   s   @r!   r  r    s:    Okk22LLO ?N..0`M Mr$   r  c                   $    e Zd ZdZdZdZd Zd Zy)CrtS3SigV4QueryAutha  S3 SigV4 auth using query parameters.
    This signer will sign a request using query parameters and signature
    version 4, i.e a "presigned url" signer.
    Based off of:
    http://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-query-string-auth.html
    Fc                      yr  r   r   s     r!   rT   z/CrtS3SigV4QueryAuth._should_sha256_sign_payload_  r  r$   c                      yr  r   r   s     r!   rU   z5CrtS3SigV4QueryAuth._should_add_content_sha256_headerf  r
  r$   Nr  r   r$   r!   r  r  S  s     #!&r$   r  )v4zv4-queryv4as3v4z
s3v4-querys3v4azs3v4a-query)rG   ior   botocore.authr   r   r   r   r   r	   botocore.compatr
   r   r   r   r   botocore.exceptionsr   botocore.utilsr   r   r   r   r   r   r  r  r  CRT_AUTH_TYPE_MAPSr   r$   r!   <module>r      s       P O 2 2P,: P,f4\ 4nP,z P,f/) /dBM, BMJ3 ,HM HMV+ 6 !%* r$   