U
    [eW                     @   s  d dl Z d dlZd dlZd dlZd dlZd dlmZ d dlm	Z	 d dl
mZ d dlmZ d dlmZmZmZmZ d dlmZmZmZ d dlmZmZmZmZ zd d	lmZ d
ZW n2 e k
r   dZdWe!e!e"e"e#e!dddZY nX dZ$dZ%dZ&dZ'dZ(dZ)dZ*e+dZ,dZ-dZ.dZ/dZ0dZ1dZ2dZ3dZ4e+e.d e/ ej5Z6e7e8e9d d!Z:ej;d"ej<dfej;d"ej=dfd#Z>e'e(e)d$Z?e@d%ZAe@d&ZBd'd( ZCe.d) e/d) fd*d+ZDd,d- ZEd.d/ ZFd0d1 ZGd2d3 ZHd4d5 ZId6d7 ZJd8d9 ZKd:d; ZLG d<d= d=eMZNG d>d? d?eMZOG d@dA dAeMZPG dBdC dCeMZQG dDdE dEeMZRe%eO e&eP e$eR e'eQdFeS e(eQdGeT e)eQdHeU iZVdIdJ ZWejXejYejZej[ej\f Z]dXe!ej^e! e]dKdLdMZ_dYe]ej^e! dNdOdPZ`ejXejaejbejcejdf ZedZe!eedQdRdSZfeee!dTdUdVZgdS )[    N)encodebytes)utilsUnsupportedAlgorithm)_get_backend)dsaeced25519rsa)Cipher
algorithmsmodes)EncodingNoEncryptionPrivateFormatPublicFormat)kdfTF)passwordsaltdesired_key_bytesroundsignore_few_roundsreturnc                 C   s   t dd S )NzNeed bcrypt moduler   )r   r   r   r   r    r   r/var/www/html/services/stratfitenv/lib/python3.8/site-packages/cryptography/hazmat/primitives/serialization/ssh.py_bcrypt_kdf    s    r   s   ssh-ed25519s   ssh-rsas   ssh-dsss   ecdsa-sha2-nistp256s   ecdsa-sha2-nistp384s   ecdsa-sha2-nistp521s   -cert-v01@openssh.coms   \A(\S+)[ \t]+(\S+)s   openssh-key-v1 s#   -----BEGIN OPENSSH PRIVATE KEY-----s!   -----END OPENSSH PRIVATE KEY-----s   bcrypts   none
   aes256-ctr   H   s   (.*?)          )r   s
   aes256-cbc)Z	secp256r1Z	secp384r1Z	secp521r1s   >Is   >Qc                 C   s(   | j }|jtkrtd|j t|j S )z3Return SSH key_type and curve_name for private key.z)Unsupported curve for ssh private key: %r)curvename_ECDSA_KEY_TYPE
ValueError)
public_keyr"   r   r   r   _ecdsa_key_typeS   s    
r'      
c                 C   s   d |t| |gS )N    )join_base64_encode)dataprefixsuffixr   r   r   _ssh_pem_encode]   s    r/   c                 C   s    | rt | | dkrtddS )zRequire data to be full blocksr   zCorrupt data: missing paddingN)lenr%   )r,   Z	block_lenr   r   r   _check_block_sizea   s    r1   c                 C   s   | rt ddS )z!All data should have been parsed.zCorrupt data: unparsed dataN)r%   r,   r   r   r   _check_emptyg   s    r3   c           
      C   sT   |st dt|  \}}}}t|||| |d}	t||	d| ||	|d |S )z$Generate key + iv and return cipher.zKey is password-protected.TN)r%   _SSH_CIPHERSr   r   )

ciphernamer   r   r   backendalgoZkey_lenmodeZiv_lenseedr   r   r   _init_cipherm   s
    r:   c                 C   s6   t | dk rtdt| dd d | dd fS )ZUint32   Invalid dataNr   )r0   r%   _U32unpackr2   r   r   r   _get_u32w   s    r?   c                 C   s6   t | dk rtdt| dd d | dd fS )ZUint64   r<   Nr   )r0   r%   _U64r>   r2   r   r   r   _get_u64~   s    rB   c                 C   s8   t | \}} |t| kr td| d| | |d fS )zBytes with u32 length prefixr<   N)r?   r0   r%   )r,   nr   r   r   _get_sshstr   s    rD   c                 C   s4   t | \}} |r$|d dkr$tdt|d| fS )zBig integer.r      r<   big)rD   r%   int
from_bytes)r,   valr   r   r   
_get_mpint   s    rJ   c                 C   s4   | dk rt d| sdS |  d d }t| |S )z!Storage format for signed bigint.r   znegative mpint not allowedr)   r@   )r%   
bit_lengthr   Zint_to_bytes)rI   nbytesr   r   r   	_to_mpint   s    rM   c                   @   sT   e Zd ZdZdddZdd Zdd Zd	d
 Zdd Zdd Z	dddZ
dd ZdS )	_FragListz,Build recursive structure without data copy.Nc                 C   s   g | _ |r| j | d S N)flistextend)selfinitr   r   r   __init__   s    z_FragList.__init__c                 C   s   | j | dS )zAdd plain bytesN)rP   appendrR   rI   r   r   r   put_raw   s    z_FragList.put_rawc                 C   s   | j t| dS )zBig-endian uint32N)rP   rU   r=   packrV   r   r   r   put_u32   s    z_FragList.put_u32c                 C   sL   t |tttfr,| t| | j| n| |  | j	|j dS )zBytes prefixed with u32 lengthN)

isinstancebytes
memoryview	bytearrayrY   r0   rP   rU   sizerQ   rV   r   r   r   
put_sshstr   s
    z_FragList.put_sshstrc                 C   s   |  t| dS )z*Big-endian bigint prefixed with u32 lengthN)r_   rM   rV   r   r   r   	put_mpint   s    z_FragList.put_mpintc                 C   s   t tt| jS )zCurrent number of bytes)summapr0   rP   )rR   r   r   r   r^      s    z_FragList.sizer   c                 C   s2   | j D ]&}t|}|||  }}||||< q|S )zWrite into bytearray)rP   r0   )rR   ZdstbufposfragZflenstartr   r   r   render   s
    
z_FragList.renderc                 C   s"   t t|  }| | | S )zReturn as bytes)r\   r]   r^   rf   tobytes)rR   bufr   r   r   rg      s    
z_FragList.tobytes)N)r   )__name__
__module____qualname____doc__rT   rW   rY   r_   r`   r^   rf   rg   r   r   r   r   rN      s   
	
rN   c                   @   s8   e Zd ZdZdd Zdd Zdd Zdd	 Zd
d ZdS )_SSHFormatRSAzhFormat for RSA keys.

    Public:
        mpint e, n
    Private:
        mpint n, e, d, iqmp, p, q
    c                 C   s$   t |\}}t |\}}||f|fS )zRSA public fieldsrJ   )rR   r,   erC   r   r   r   
get_public   s    z_SSHFormatRSA.get_publicc                 C   s0   |  |\\}}}t||}||}||fS )zMake RSA public key from data.)rp   r
   RSAPublicNumbersr&   )rR   key_typer,   r6   ro   rC   public_numbersr&   r   r   r   load_public   s    
z_SSHFormatRSA.load_publicc              	   C   s   t |\}}t |\}}t |\}}t |\}}t |\}}t |\}	}||f|kr\tdt||}
t||	}t||}t||	||
|||}||}||fS )zMake RSA private key from data.z Corrupt data: rsa field mismatch)rJ   r%   r
   Zrsa_crt_dmp1Zrsa_crt_dmq1rq   ZRSAPrivateNumbersprivate_key)rR   r,   	pubfieldsr6   rC   ro   diqmppqZdmp1Zdmq1rs   private_numbersru   r   r   r   load_private   s,          
z_SSHFormatRSA.load_privatec                 C   s$   |  }||j ||j dS )zWrite RSA public keyN)rs   r`   ro   rC   )rR   r&   f_pubZpubnr   r   r   encode_public   s    z_SSHFormatRSA.encode_publicc                 C   sZ   |  }|j}||j ||j ||j ||j ||j ||j dS )zWrite RSA private keyN)	r{   rs   r`   rC   ro   rw   rx   ry   rz   )rR   ru   f_privr{   rs   r   r   r   encode_private   s    z_SSHFormatRSA.encode_privateN	ri   rj   rk   rl   rp   rt   r|   r~   r   r   r   r   r   rm      s   rm   c                   @   s@   e Zd ZdZdd Zdd Zdd Zdd	 Zd
d Zdd Z	dS )_SSHFormatDSAzhFormat for DSA keys.

    Public:
        mpint p, q, g, y
    Private:
        mpint p, q, g, y, x
    c                 C   s@   t |\}}t |\}}t |\}}t |\}}||||f|fS )zDSA public fieldsrn   )rR   r,   ry   rz   gyr   r   r   rp     s
    z_SSHFormatDSA.get_publicc                 C   sL   |  |\\}}}}}t|||}t||}	| |	 |	|}
|
|fS )zMake DSA public key from data.)rp   r   DSAParameterNumbersDSAPublicNumbers	_validater&   )rR   rr   r,   r6   ry   rz   r   r   parameter_numbersrs   r&   r   r   r   rt     s    

z_SSHFormatDSA.load_publicc                 C   s|   |  |\\}}}}}t|\}}||||f|kr:tdt|||}	t||	}
| |
 t||
}||}||fS )zMake DSA private key from data.z Corrupt data: dsa field mismatch)	rp   rJ   r%   r   r   r   r   ZDSAPrivateNumbersru   )rR   r,   rv   r6   ry   rz   r   r   xr   rs   r{   ru   r   r   r   r|   '  s    

z_SSHFormatDSA.load_privatec                 C   sL   |  }|j}| | ||j ||j ||j ||j dS )zWrite DSA public keyN)rs   r   r   r`   ry   rz   r   r   )rR   r&   r}   rs   r   r   r   r   r~   5  s    
z_SSHFormatDSA.encode_publicc                 C   s$   |  | | || j dS )zWrite DSA private keyN)r~   r&   r`   r{   r   )rR   ru   r   r   r   r   r   @  s    z_SSHFormatDSA.encode_privatec                 C   s    |j }|j dkrtdd S )Ni   z#SSH supports only 1024 bit DSA keys)r   ry   rK   r%   )rR   rs   r   r   r   r   r   E  s    z_SSHFormatDSA._validateN)
ri   rj   rk   rl   rp   rt   r|   r~   r   r   r   r   r   r   r     s   	r   c                   @   s@   e Zd ZdZdd Zdd Zdd Zdd	 Zd
d Zdd Z	dS )_SSHFormatECDSAzFormat for ECDSA keys.

    Public:
        str curve
        bytes point
    Private:
        str curve
        bytes point
        mpint secret
    c                 C   s   || _ || _d S rO   )ssh_curve_namer"   )rR   r   r"   r   r   r   rT   W  s    z_SSHFormatECDSA.__init__c                 C   sJ   t |\}}t |\}}|| jkr*td|d dkr>td||f|fS )zECDSA public fieldszCurve name mismatchr   r;   zNeed uncompressed point)rD   r   r%   NotImplementedError)rR   r,   r"   pointr   r   r   rp   [  s    
z_SSHFormatECDSA.get_publicc                 C   s.   |  |\\}}}tj| j| }||fS )z Make ECDSA public key from data.)rp   r   EllipticCurvePublicKeyZfrom_encoded_pointr"   rg   )rR   rr   r,   r6   
curve_namer   r&   r   r   r   rt   e  s     z_SSHFormatECDSA.load_publicc                 C   sJ   |  |\\}}}t|\}}||f|kr2tdt|| j|}||fS )z!Make ECDSA private key from data.z"Corrupt data: ecdsa field mismatch)rp   rJ   r%   r   Zderive_private_keyr"   )rR   r,   rv   r6   r   r   secretru   r   r   r   r|   m  s    z_SSHFormatECDSA.load_privatec                 C   s*   | tjtj}|| j || dS )zWrite ECDSA public keyN)public_bytesr   ZX962r   ZUncompressedPointr_   r   )rR   r&   r}   r   r   r   r   r~   w  s     z_SSHFormatECDSA.encode_publicc                 C   s,   |  }| }| || ||j dS )zWrite ECDSA private keyN)r&   r{   r~   r`   Zprivate_value)rR   ru   r   r&   r{   r   r   r   r     s    z_SSHFormatECDSA.encode_privateN)
ri   rj   rk   rl   rT   rp   rt   r|   r~   r   r   r   r   r   r   K  s   

r   c                   @   s8   e Zd ZdZdd Zdd Zdd Zdd	 Zd
d ZdS )_SSHFormatEd25519z~Format for Ed25519 keys.

    Public:
        bytes point
    Private:
        bytes point
        bytes secret_and_point
    c                 C   s   t |\}}|f|fS )zEd25519 public fields)rD   )rR   r,   r   r   r   r   rp     s    z_SSHFormatEd25519.get_publicc                 C   s(   |  |\\}}tj| }||fS )z"Make Ed25519 public key from data.)rp   r	   Ed25519PublicKeyZfrom_public_bytesrg   )rR   rr   r,   r6   r   r&   r   r   r   rt     s
    z_SSHFormatEd25519.load_publicc           	      C   sb   |  |\\}}t|\}}|dd }|dd }||ksF|f|krNtdtj|}||fS )z#Make Ed25519 private key from data.Nr!   z$Corrupt data: ed25519 field mismatch)rp   rD   r%   r	   Ed25519PrivateKeyZfrom_private_bytes)	rR   r,   rv   r6   r   Zkeypairr   Zpoint2ru   r   r   r   r|     s    z_SSHFormatEd25519.load_privatec                 C   s   | tjtj}|| dS )zWrite Ed25519 public keyN)r   r   Rawr   r_   )rR   r&   r}   raw_public_keyr   r   r   r~     s
     z_SSHFormatEd25519.encode_publicc                 C   sR   |  }|tjtjt }|tjtj}t||g}| 	|| |
| dS )zWrite Ed25519 private keyN)r&   Zprivate_bytesr   r   r   r   r   r   rN   r~   r_   )rR   ru   r   r&   Zraw_private_keyr   Z	f_keypairr   r   r   r     s       z _SSHFormatEd25519.encode_privateNr   r   r   r   r   r     s   	r   s   nistp256s   nistp384s   nistp521c                 C   s6   t | tst|  } | tkr&t|  S td|  dS )z"Return valid format or throw errorzUnsupported key type: %rN)rZ   r[   r\   rg   _KEY_FORMATSr   )rr   r   r   r   _lookup_kformat  s
    
r   )r,   r   r   c                 C   sR  t d|  t|}|dk	r(t d| t| }|s>td|d}|d}t	
t| || } | tsztdt| ttd } t| \}} t| \}} t| \}} t| \}	} |	dkrtdt| \}
} t|
\}}
t|}||
\}}
t|
 t| \}} t|  ||fttfkr| }|tkrHtd| |tkr^td| t| d	 }t|| t|\}}t|\}}t| t||| ||}t| |}nd
}t|| t|\}}t|\}}||krtdt|\}}||krtd||||\}}t|\}}|tdt| krNtd|S )z.Load private key from OpenSSH custom encoding.r,   Nr   zNot OpenSSH private key formatr   zOnly one key supportedzUnsupported cipher: %rzUnsupported KDF: %r   r@   zCorrupt data: broken checksumzCorrupt data: key type mismatchzCorrupt data: invalid padding)r   _check_bytesliker   _check_bytes_PEM_RCsearchr%   re   endbinascii
a2b_base64r\   
startswith	_SK_MAGICr0   rD   r?   r   rp   r3   _NONErg   r4   r   _BCRYPTr1   r:   Z	decryptorupdater|   _PADDING)r,   r   r6   mp1p2r5   kdfnameZ
kdfoptionsnkeysZpubdataZpub_key_typekformatrv   Zedatablklenr   Zkbufr   ciphZck1Zck2rr   ru   commentr   r   r   load_ssh_private_key  sv    






    


r   )ru   r   c                 C   s>  |dk	rt d| |r,t|tkr,tdt| tjrFt| 	 }n>t| t
jrXt}n,t| tjrjt}nt| tjr|t}ntdt|}t }|rt}t| d }t}t}td}	||	 || td}
t|||	||
}nt }}d}d}d}td	}d
}t }|| | | 	 | t||g}|| |!| | || |"t#d||$ |    t }|"t% || || || || || || |$ }|$ }t&t'|| }|(| || }|dk	r|) *||| ||d  t+|d| }t'||||< |S )z3Serialize private key with OpenSSH custom encoding.Nr   zNPasswords longer than 72 bytes are not supported by OpenSSH private key formatUnsupported key typer   r   r@   r   r;   r)   ),r   r   r0   _MAX_PASSWORDr%   rZ   r   EllipticCurvePrivateKeyr'   r&   r
   RSAPrivateKey_SSH_RSAr   DSAPrivateKey_SSH_DSAr	   r   _SSH_ED25519r   rN   _DEFAULT_CIPHERr4   r   _DEFAULT_ROUNDSosurandomr_   rY   r   r:   r   r~   r   rW   r   r^   r   r\   r]   rf   Z	encryptorZupdate_intor/   )ru   r   rr   r   Zf_kdfoptionsr5   r   r   r   r   r6   r   r   Zcheckvalr   Zf_public_keyZ	f_secretsZf_mainslenmlenrh   Zofstxtr   r   r   serialize_ssh_private_key(  sv    















 r   )r,   r   c              	   C   s  t |}td|  t| }|s*td|d }}|d}d}t|tt d krrd}|dtt  }t	|}zt
t|} W n" ttjfk
r   tdY nX t| \}} ||krtd|rt| \}	} ||| |\}
} |rxt| \}} t| \}} t| \}} t| \}} t| \}} t| \}} t| \}} t| \}} t| \}} t| \}} t| \}} t|  |
S )	z-Load public key from OpenSSH one-line format.r,   zInvalid line formatr      FNTzInvalid key format)r   r   r   _SSH_PUBKEY_RCmatchr%   group_CERT_SUFFIXr0   r   r\   r   r   	TypeErrorErrorrD   rt   rB   r?   r3   )r,   r6   r   rr   Zorig_key_typeZkey_bodyZ	with_certr   Zinner_key_typenoncer&   serialZcctypeZkey_idZ
principalsZvalid_afterZvalid_beforeZcrit_options
extensionsreservedZsig_key	signaturer   r   r   load_ssh_public_key  sH    

r   )r&   r   c                 C   s   t | tjrt| }n>t | tjr(t}n,t | tjr:t	}nt | t
jrLt}ntdt|}t }|| || | t|  }d|d|gS )z&One-line public key format for OpenSSHr   r)       )rZ   r   r   r'   r
   RSAPublicKeyr   r   DSAPublicKeyr   r	   r   r   r%   r   rN   r_   r~   r   
b2a_base64rg   stripr*   )r&   rr   r   r}   Zpubr   r   r   serialize_ssh_public_key  s    

r   )F)N)N)N)hr   r   restructtypingbase64r   r+   Zcryptographyr   Zcryptography.exceptionsr   Zcryptography.hazmat.backendsr   Z)cryptography.hazmat.primitives.asymmetricr   r   r	   r
   Z&cryptography.hazmat.primitives.ciphersr   r   r   Z,cryptography.hazmat.primitives.serializationr   r   r   r   Zbcryptr   r   Z_bcrypt_supportedImportErrorr[   rG   boolr   r   r   Z_ECDSA_NISTP256Z_ECDSA_NISTP384Z_ECDSA_NISTP521r   compiler   r   Z	_SK_STARTZ_SK_ENDr   r   r   r   r   DOTALLr   r\   r]   ranger   ZAESZCTRZCBCr4   r$   Structr=   rA   r'   r/   r1   r3   r:   r?   rB   rD   rJ   rM   objectrN   rm   r   r   r   Z	SECP256R1Z	SECP384R1Z	SECP521R1r   r   Unionr   r   r   r   Z_SSH_PRIVATE_KEY_TYPESOptionalr   r   r   r   r   r   Z_SSH_PUBLIC_KEY_TYPESr   r   r   r   r   r   <module>   s    






0>>=:      
		  N U+