Class: Rack::CloudflareMiddleware::TrustedIps

Inherits:
Object
  • Object
show all
Includes:
Singleton
Defined in:
lib/rack/cloudflare_middleware/trusted_ips.rb

Constant Summary collapse

TIMEOUT = 
7.0
OPEN_TIMEOUT = 
4.0
UPDATE_THRESHOLD = 
21600

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ TrustedIps

Returns a new instance of TrustedIps.



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# File 'lib/rack/cloudflare_middleware/trusted_ips.rb', line 21

def initialize
  reset!
end

Instance Attribute Details

#mtimes ⇒ Object (readonly)

Returns the value of attribute mtimes.



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# File 'lib/rack/cloudflare_middleware/trusted_ips.rb', line 17

def mtimes
  @mtimes
end

#ranges ⇒ Object (readonly)

Returns the value of attribute ranges.



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# File 'lib/rack/cloudflare_middleware/trusted_ips.rb', line 16

def ranges
  @ranges
end

Instance Method Details

#check_update ⇒ Object 



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# File 'lib/rack/cloudflare_middleware/trusted_ips.rb', line 47

def check_update
  if [4, 6].any? { (Time.now - @mtimes[_1]) > UPDATE_THRESHOLD }
    update!
  end
end

#include?(ip) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rack/cloudflare_middleware/trusted_ips.rb', line 31

def include?(ip)
  unless ip.is_a? IPAddr
    ip = IPAddr.new(ip)
  end
  if ip.ipv4?
    @ranges[4].any? { _1.include? ip }
  else
    @ranges[6].any? { _1.include? ip }
  end
end

#reset! ⇒ Object 



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# File 'lib/rack/cloudflare_middleware/trusted_ips.rb', line 25

def reset!
  @ranges = {4 => Set.new, 6 => Set.new}
  @mtimes = {4 => Time.new(1970, 1, 1), 6 => Time.new(1970, 1, 1)}
  load_from_files
end

#update! ⇒ Object 



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# File 'lib/rack/cloudflare_middleware/trusted_ips.rb', line 42

def update!
  read_network "https://www.cloudflare.com/ips-v4/", 4
  read_network "https://www.cloudflare.com/ips-v6/", 6
end