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Month is one of: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec UTC should be specified as GMT (see ASN1_TIME_print()) r)strptime)timegmJanFebMarAprMayJunJulAugSepOctNovDecz %d %H:%M:%S %Y GMTNrZr:z*time data %r does not match format "%%b%s"rY) rrrrrrrrrrrr)Ztimer ZcalendarrindextitlerP)Z cert_timer rZmonthsZ time_formatZ month_numberZttr#r#r$cert_time_to_secondss  rz-----BEGIN CERTIFICATE-----z-----END CERTIFICATE-----cCs2ttj|dd}tdtj|ddtdS)z[Takes a certificate in binary DER format and returns the PEM version of it as a string.ASCIIstrict @)rbase64Zstandard_b64encode PEM_HEADERtextwrapZfill PEM_FOOTER)Zder_cert_bytesfr#r#r$DER_cert_to_PEM_certsr(cCs\|jtstdt|jjts0tdt|jtttt }tj|j ddS)zhTakes a certificate in ASCII PEM format and returns the DER-encoded version of it as a byte sequencez(Invalid PEM encoding; must start with %sz&Invalid PEM encoding; must end with %srr ) r!r$rPstripendswithr&rRr#Z decodebytesencode)Zpem_cert_stringdr#r#r$PEM_cert_to_DER_certs r-c Csd|\}}|dk rt}nt}t|||d}t|&}|j|}|jd} WdQRXWdQRXt| S)zRetrieve the certificate from the server at the specified address, and return it as a PEM-encoded string. If 'ca_certs' is specified, validate the server cert against it. If 'ssl_version' is specified, use it in the connection attempt.N)rrcT)rr_create_stdlib_contextr3rrr() rrrhostZportrrrZsslsockZdercertr#r#r$get_server_certificates  r0cCs tj|dS)Nz )_PROTOCOL_NAMESrQ)Z protocol_coder#r#r$get_protocol_namesr2)r:)brorKr%rBrr] collectionsrenumrZ_EnumrZ_IntEnumrZ_IntFlagr[rrrr r r r r rrrrrrhrrlrrrrr ImportErrorrrrrrr_convertr7rrr __members__itemsr1getattrr{rr.r/r0r1r2r3r4r5r#rrrZ socket_errorZHAS_TLS_UNIQUErr}rrPr6rJrOrWrXr\rersrvrtrrZ_create_default_https_contextr.rrrrrr$r&r(r-r0r2r#r#r#r$[s       1 4i%-