]fv ddlZddlZ ddlmZddZn#e$r ddlmZddZYnwxYwddZ dZ dZ d Z d Z d Zd Zd ZdS)N) int_to_bytesc&t||pdS)N)_long_to_bytes)n blocksizes >Js88y((((#c((*GW$s* *r cltjt||dS)N=)base64urlsafe_b64encoder strip)datasizes rlong_to_base64rs+  #M$$=$= > > D DT J JJr c\tdd|DdS)Ncg|]}d|zS)z%02x).0bytes r z#int_arr_to_long..s666$ 666r )intjoin)arrs rint_arr_to_longr$s- rww66#66677 < < >>r c||d}tt|dz }|d|}t |}|dS)aHelper method for calculating an access token hash, as described in http://openid.net/specs/openid-connect-core-1_0.html#CodeIDToken Its value is the base64url encoding of the left-most half of the hash of the octets of the ASCII representation of the access_token value, where the hash algorithm used is the hash algorithm used in the alg Header Parameter of the ID Token's JOSE Header. For instance, if the alg is RS256, hash the access_token value with SHA-256, then take the left-most 128 bits and base64url encode them. The at_hash value is a case sensitive string. Args: access_token (str): An access token string. hash_alg (callable): A callable returning a hash object, e.g. hashlib.sha256 utf-8N)r)digestr!rbase64url_encodedecode) access_tokenhash_alg hash_digestcut_at truncatedat_hashs rcalculate_at_hashr<+st (<..w7788??AAK [!!A% & &FGVG$Iy))G >>' " ""r cpt|dz}|dkr |dd|z zz }tj|S)zwHelper method to base64url_decode a string. Args: input (str): A base64url_encoded string to decode. rr)rrr*)inputrems rbase64url_decoderABs@ e**q.C Qww S!!  #E * **r cRtj|ddS)zwHelper method to base64url_encode a string. Args: input (str): A base64url_encoded string to encode. rr )rrreplace)r?s rr4r4Qs%  #E * * 2 24 = ==r c2|jdzdzdz|jzS)zHelper method to determine the total number of seconds from a timedelta. Args: delta (timedelta): A timedelta to convert to seconds. <)daysseconds)deltas rtimedelta_total_secondsrJ[s! :?R " $u} 44r ct|tr|St|tr|ddSt dt |d)zCoerce **s** to bytes.r1strictznot expecting type '')r'r+r(r) TypeErrortype)ss r ensure_binaryrQesa!U!S+xx*** 5477555 6 66r )r)rr,cryptography.utilsrrr ImportError ecdsa.ecdsar rr$r/r<rAr4rJrQrr rrUs +AAAAAA44444 + + +;;;;;;++++++ +KKKK===???###. + + +>>>55577777s ''