Class: Antispam::Challenge

Inherits:
ApplicationRecord show all
Defined in:
app/models/antispam/challenge.rb

Instance Method Summary collapse

Instance Method Details

#create_string ⇒ Object 



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# File 'app/models/antispam/challenge.rb', line 9

def create_string
  o = [('a'..'z'), ('A'..'Z')].map(&:to_a).flatten
  (0...8).map { o[rand(o.length)] }.join
end

#generate ⇒ Object 



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# File 'app/models/antispam/challenge.rb', line 5

def generate
  self.question = create_string
  self.answer = self.question
end

#get_image ⇒ Object 



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# File 'app/models/antispam/challenge.rb', line 13

def get_image
  require "image_processing/vips"
  image = Vips::Image.text(self.answer, dpi: 300)
  image.draw_line(255, 5+rand(20).to_i, 5+rand(20).to_i, 150+rand(50).to_i, 10+rand(10).to_i)
end

#validate?(check) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/antispam/challenge.rb', line 18

def validate?(check)
  return false if self.answer.nil?
  result = false
  result = true if self.answer.downcase == check.downcase
  self.update_column(:answer,nil)
  return result
end