Erstellen Sie Bild von Base64 Ruby

start_regex = /data:image\/[a-z]{3,4};base64,/
filename ||= SecureRandom.hex

regex_result = start_regex.match(base64_data)
if base64_data && regex_result
  start = regex_result.to_s
  tempfile = Tempfile.new(filename)
  tempfile.binmode
  tempfile.write(Base64.decode64(base64_data[start.length..-1]))
end
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