U La_W@s(dZddlZddlZeeZddlmZddlm Z m Z m Z ddl m Z mZddlmZmZmZmZmZddlmZddlmmZdd d d gZd Zd dZddZddZddZ Gdddej!ej"ej#ej$Z%Gdd d ej"ej&ej#ej$Z'Gdd d ej#ej$Z(Gdd d ej!ej#ej$Z)dS)zFpasslib.handlers.des_crypt - traditional unix (DES) crypt and variantsN)warn) safe_crypt test_crypt to_unicode)h64h64big)byte_elem_valueu uascii_to_strunicodesuppress_cause)des_encrypt_int_block des_crypt bsdi_cryptbigcryptcrypt16cCstddt|ddDS)zconvert secret to 64-bit DES key. this only uses the first 8 bytes of the secret, and discards the high 8th bit of each byte at that. a null parity bit is inserted after every 7th bit of the output. css*|]"\}}t|d@d|d>VqdS)9N)r).0icr>/tmp/pip-unpacked-wheel-8v2dfbvt/passlib/handlers/des_crypt.py (sz'_crypt_secret_to_key..Nr)sum enumerate)secretrrr_crypt_secret_to_keys rcCspt|dkstt|}t|tr.|d}t|ts[./a-z0-9]{2}) (?P[./a-z0-9]{11})? $cCs6t|dd}|dd|dd}}|||p0ddS)Nasciihashr r.checksum)r)clsr>r.chkrrr from_strings zdes_crypt.from_stringcCstd|j|jf}t|SNz%s%sr r.r@r selfr>rrr to_stringszdes_crypt.to_stringcCs|jr||||S)N) use_defaults_check_truncate_policyZ_calc_checksum_backendrGrrrr_calc_checksums zdes_crypt._calc_checksumZos_cryptbuiltincCs"tddr||jdSdSdS)NtestZ abgOeLfPimXQoTFr_set_calc_checksum_backend_calc_checksum_os_cryptrArrr_load_backend_os_crypts  z des_crypt._load_backend_os_cryptcCsTt||j}|dkr||S||jr6t|dkrHtj||j||ddS)N r )rr._calc_checksum_builtin startswithr#r*r+CryptBackendError)rGrr>rrrrRs   z!des_crypt._calc_checksum_os_cryptcCs||jdSNTrQrVrSrrr_load_backend_builtins zdes_crypt._load_backend_builtincCst||jddSNr=)r2r.r'decoderKrrrrVsz des_crypt._calc_checksum_builtinN)__name__ __module__ __qualname____doc__name setting_kwdsr* HASH64_CHARSchecksum_chars checksum_size min_salt_size max_salt_size salt_chars truncate_sizerecompiler XI _hash_regex classmethodrCrHrLbackendsrTrRr[rVrrrrrps,$      cseZdZdZdZdZdZejZ dZ Z ejZ dZ dZdZdZeed ejejBZed d Zd d ZdZefddZefddZfddZdZeddZddZ eddZ!ddZ"Z#S)ra This class implements the BSDi-Crypt password hash, and follows the :ref:`password-hash-api`. It supports a fixed-length salt, and a variable number of rounds. The :meth:`~passlib.ifc.PasswordHash.using` method accepts the following optional keywords: :type salt: str :param salt: Optional salt string. If not specified, one will be autogenerated (this is recommended). If specified, it must be 4 characters, drawn from the regexp range ``[./0-9A-Za-z]``. :type rounds: int :param rounds: Optional number of rounds to use. Defaults to 5001, must be between 1 and 16777215, inclusive. :type relaxed: bool :param relaxed: By default, providing an invalid value for one of the other keywords will result in a :exc:`ValueError`. If ``relaxed=True``, and the error can be corrected, a :exc:`~passlib.exc.PasslibHashWarning` will be issued instead. Correctable errors include ``rounds`` that are too small or too large, and ``salt`` strings that are too long. .. versionadded:: 1.6 .. versionchanged:: 1.6 :meth:`hash` will now issue a warning if an even number of rounds is used (see :ref:`bsdi-crypt-security-issues` regarding weak DES keys). )r.r9r<iiZlinearz ^ _ (?P[./a-z0-9]{4}) (?P[./a-z0-9]{4}) (?P[./a-z0-9]{11})? $cCsVt|dd}|j|}|s(tj||ddd\}}}|t| d||dS)Nr=r>r9r.rB)r9r.r@) rromatchr*r+InvalidHashErrorgrouprr8r')rAr>mr9r.rBrrrrC4s   zbsdi_crypt.from_stringcCs,tdt|jd|j|jf}t|S)Nz_%s%s%sr=)r rZ encode_int24r9r]r.r@r rFrrrrHAs zbsdi_crypt.to_stringTc s.tt|jf|}|jd@s*tdtjj|S)NrszHbsdi_crypt rounds should be odd, as even rounds may reveal weak DES keys)superrusingdefault_roundsrr*r+ZPasslibSecurityWarning)rAkwdssubcls __class__rrryNs  zbsdi_crypt.usingcstt|}|dBS)Nrs)rxr_generate_rounds)rAr9r}rrrWszbsdi_crypt._generate_roundsc s |jd@sdStt|jf|S)NrsT)r9rxr_calc_needs_update)rGr{r}rrres zbsdi_crypt._calc_needs_updaterMcCs"tddr||jdSdSdS)NrOz_/...lLDAxARksGCHin.TFrPrSrrrrTts  z!bsdi_crypt._load_backend_os_cryptcCs^|}t||}|dkr$||S||ddrBt|dkrRtj||||ddS)N )rHrrVrWr#r*r+rX)rGrconfigr>rrrrR|s  z"bsdi_crypt._calc_checksum_os_cryptcCs||jdSrYrZrSrrrr[s z bsdi_crypt._load_backend_builtincCst||j|jddSr\)r:r9r.r'r]rKrrrrVsz!bsdi_crypt._calc_checksum_builtin)$r^r_r`rarbrcrfr*rdrergrhrirzZ min_roundsZ max_roundsZ rounds_costrkrlr rmrnrorprCrHZ_avoid_even_roundsryrrrqrTrRr[rV __classcell__rrr}rrs<#       csreZdZdZdZdZejZdZ Z ejZ e ede je jBZeddZddZdfd d Zd d ZZS)ragThis class implements the BigCrypt password hash, and follows the :ref:`password-hash-api`. It supports a fixed-length salt. The :meth:`~passlib.ifc.PasswordHash.using` method accepts the following optional keywords: :type salt: str :param salt: Optional salt string. If not specified, one will be autogenerated (this is recommended). If specified, it must be 22 characters, drawn from the regexp range ``[./0-9A-Za-z]``. :type relaxed: bool :param relaxed: By default, providing an invalid value for one of the other keywords will result in a :exc:`ValueError`. If ``relaxed=True``, and the error can be corrected, a :exc:`~passlib.exc.PasslibHashWarning` will be issued instead. Correctable errors include ``salt`` strings that are too long. .. versionadded:: 1.6 )r.r zX ^ (?P[./a-z0-9]{2}) (?P([./a-z0-9]{11})+)? $cCsDt|dd}|j|}|s(tj||dd\}}|||dSNr=r>r.rBr?rrortr*r+rurvrAr>rwr.rBrrrrCs    zbigcrypt.from_stringcCstd|j|jf}t|SrDrErFrrrrHszbigcrypt.to_stringFcs0tt|j||d}t|dr,tj||S)N)relaxedr<)rxr_norm_checksumr#r*r+ru)rGr@rr}rrrs  zbigcrypt._norm_checksumcCspt|tr|d}t||jd}d}t|}||krf|d}|t||||dd7}|}q2|dS)Nr!r=rri)r&r r'r2r.r#r])rGrrBr3r4r5rrrrLs  zbigcrypt._calc_checksum)F)r^r_r`rarbrcr*rdrergrhrirkrlr rmrnrorprCrHrrLrrrr}rrs    c@sheZdZdZdZdZdZejZ dZ Z ejZ dZ eedejejBZeddZd d Zd d Zd S)raThis class implements the crypt16 password hash, and follows the :ref:`password-hash-api`. It supports a fixed-length salt. The :meth:`~passlib.ifc.PasswordHash.using` method accepts the following optional keywords: :type salt: str :param salt: Optional salt string. If not specified, one will be autogenerated (this is recommended). If specified, it must be 2 characters, drawn from the regexp range ``[./0-9A-Za-z]``. :param bool truncate_error: By default, crypt16 will silently truncate passwords larger than 16 bytes. Setting ``truncate_error=True`` will cause :meth:`~passlib.ifc.PasswordHash.hash` to raise a :exc:`~passlib.exc.PasswordTruncateError` instead. .. versionadded:: 1.7 :type relaxed: bool :param relaxed: By default, providing an invalid value for one of the other keywords will result in a :exc:`ValueError`. If ``relaxed=True``, and the error can be corrected, a :exc:`~passlib.exc.PasslibHashWarning` will be issued instead. Correctable errors include ``salt`` strings that are too long. .. versionadded:: 1.6 r;r zU ^ (?P[./a-z0-9]{2}) (?P[./a-z0-9]{22})? $cCsDt|dd}|j|}|s(tj||dd\}}|||dSrrrrrrrC+s    zcrypt16.from_stringcCstd|j|jf}t|SrDrErFrrrrH4szcrypt16.to_stringcCst|tr|d}|jr$||zt|jd}Wn tk rZt tdYnXt |}t |d|d}t |dd}t |d|d}t |t |}|dS) Nr!r=zinvalid chars in saltrrrr)r&r r'rIrJrr%r. ValueErrorr rr rr-r])rGrr/key1Zresult1key2Zresult2rBrrrrL;s   zcrypt16._calc_checksumN)r^r_r`rarbrcrfr*rdrergrhrirjrkrlr rmrnrorprCrHrLrrrrrs$   )*rarklogging getLoggerr^logwarningsrZ passlib.utilsrrrZpasslib.utils.binaryrrZpasslib.utils.compatrr r r r Zpasslib.crypto.desr Zpasslib.utils.handlersutilshandlersr*__all__r)rr2r7r:Z TruncateMixinZHasManyBackendsZHasSaltZGenericHandlerrZ HasRoundsrrrrrrrs2     $S