o ãË·e ã@s€gd¢ZddlmZddlmZmZmZmZddlmZddl Z e j e j Z dZ dZedƒZd d „Ze dfd d „Zdd d„ZdS))ÚsplitÚmkNonceÚcheckTimestampé)Ú cryptutil)ÚstrptimeÚstrftimeÚgmtimeÚtime)ÚtimegmNiPFz%Y-%m-%dT%H:%M:%SZz0000-00-00T00:00:00ZcCsV|dt…}z tt|tƒƒ}Wn tyd}Ynw|dkr#tdƒ‚||td…fS)aZExtract a timestamp from the given nonce string @param nonce_string: the nonce from which to extract the timestamp @type nonce_string: str @returns: A pair of a Unix timestamp and the salt characters @returntype: (int, str) @raises ValueError: if the nonce does not start with a correctly formatted time string Néÿÿÿÿrztime out of range)Ú time_str_lenr rÚtime_fmtÚAssertionErrorÚ ValueError)Ú nonce_stringÚ timestamp_strÚ timestamp©rúI/var/www/ideatree/venv/lib/python3.10/site-packages/openid/store/nonce.pyrs  ÿrcCs\zt|ƒ\}}Wn tyYdSw|durtƒ}||}||}||ko+|kSS)a8Is the timestamp that is part of the specified nonce string within the allowed clock-skew of the current time? @param nonce_string: The nonce that is being checked @type nonce_string: str @param allowed_skew: How many seconds should be allowed for completing the request, allowing for clock skew. @type allowed_skew: int @param now: The current time, as a Unix timestamp @type now: int @returntype: bool @returns: Whether the timestamp is correctly formatted and within the allowed skew of the current time. FN)rrr )rÚ allowed_skewÚnowÚstampÚ_ÚpastÚfuturerrrr-s ÿrcCs6t dt¡}|durtƒ}nt|ƒ}tt|ƒ}||S)aGenerate a nonce with the current timestamp @param when: Unix timestamp representing the issue time of the nonce. Defaults to the current time. @type when: int @returntype: str @returns: A string that should be usable as a one-way nonce @see: time éN)rÚ randomStringÚ NONCE_CHARSrrr )ÚwhenÚsaltÚtÚtime_strrrrrRs  r)N)Ú__all__Úopenidrr rrrÚcalendarr ÚstringÚ ascii_lettersÚdigitsrÚSKEWr Úlenr rrrrrrrÚs   %