Module: Dragonfly::Serializer
Defined Under Namespace
Classes: BadString, MaliciousString
Instance Method Summary
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Instance Method Details
#b64_decode(string) ⇒ Object
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# File 'lib/dragonfly/serializer.rb', line 19
def b64_decode(string)
padding_length = (-(string.length % 4)) % 4
string = string.tr('+','-').tr('~/','_')
Base64.urlsafe_decode64(string + '=' * padding_length)
rescue ArgumentError => e
raise BadString, "couldn't b64_decode string - got #{e}"
end
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#b64_encode(string) ⇒ Object
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# File 'lib/dragonfly/serializer.rb', line 15
def b64_encode(string)
Base64.urlsafe_encode64(string).tr('=','')
end
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#json_b64_decode(string) ⇒ Object
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# File 'lib/dragonfly/serializer.rb', line 50
def json_b64_decode(string)
json_decode(b64_decode(string))
end
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#json_b64_encode(object) ⇒ Object
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# File 'lib/dragonfly/serializer.rb', line 46
def json_b64_encode(object)
b64_encode(json_encode(object))
end
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#json_decode(string) ⇒ Object
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# File 'lib/dragonfly/serializer.rb', line 39
def json_decode(string)
raise BadString, "can't decode blank string" if Utils.blank?(string)
MultiJson.decode(string)
rescue MultiJson::DecodeError => e
raise BadString, "couldn't json decode string - got #{e}"
end
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#json_encode(object) ⇒ Object
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# File 'lib/dragonfly/serializer.rb', line 35
def json_encode(object)
MultiJson.encode(object)
end
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#marshal_b64_decode(string) ⇒ Object
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# File 'lib/dragonfly/serializer.rb', line 27
def marshal_b64_decode(string)
marshal_string = b64_decode(string)
raise MaliciousString, "potentially malicious marshal string #{marshal_string.inspect}" if marshal_string[/@[a-z_]/i]
Marshal.load(marshal_string)
rescue TypeError, ArgumentError => e
raise BadString, "couldn't marshal decode string - got #{e}"
end
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