class JWT::Base64
Base64
encoding and decoding
Public Class Methods
loose_urlsafe_decode64(str)
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# File lib/jwt/base64.rb, line 27 def loose_urlsafe_decode64(str) str += '=' * (4 - str.length.modulo(4)) ::Base64.decode64(str.tr('-_', '+/')) end
url_decode(str)
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Decode
a string with URL-safe Base64
complying with RFC 4648. Deprecated support for RFC 2045 remains for now. (“All line breaks or other characters not found in Table 1 must be ignored by decoding software”)
# File lib/jwt/base64.rb, line 16 def url_decode(str) ::Base64.urlsafe_decode64(str) rescue ArgumentError => e raise unless e.message == 'invalid base64' raise Base64DecodeError, 'Invalid base64 encoding' if JWT.configuration.strict_base64_decoding loose_urlsafe_decode64(str).tap do Deprecations.warning('Invalid base64 input detected, could be because of invalid padding, trailing whitespaces or newline chars. Graceful handling of invalid input will be dropped in the next major version of ruby-jwt', only_if_valid: true) end end