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15 lines
295 B
15 lines
295 B
11 years ago
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class Dnsbl
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PROVIDER = '.in.dnsbl.org'
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@dns = Resolv::DNS.new
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def self.include?(domain_name)
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query(domain_name) != nil
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end
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def self.query(domain_name)
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@dns.getresource(domain_name + PROVIDER, Resolv::DNS::Resource::IN::A)
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rescue Resolv::ResolvError
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nil
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end
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end
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