47 lines
1.0 KiB
Ruby
47 lines
1.0 KiB
Ruby
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require_dependency 'maxminddb'
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class DiscourseIpInfo
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include Singleton
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def initialize
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begin
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@mmdb_filename = File.join(Rails.root, 'vendor', 'data', 'GeoLite2-City.mmdb')
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@mmdb = MaxMindDB.new(@mmdb_filename, MaxMindDB::LOW_MEMORY_FILE_READER)
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@cache = LruRedux::ThreadSafeCache.new(1000)
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rescue Errno::ENOENT => e
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Rails.logger.warn("MaxMindDB could not be found: #{e}")
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rescue
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Rails.logger.warn("MaxMindDB could not be loaded.")
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end
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end
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def lookup(ip)
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return {} unless @mmdb
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begin
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result = @mmdb.lookup(ip)
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rescue
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Rails.logger.error("IP #{ip} could not be looked up in MaxMindDB.")
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end
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return {} if !result || !result.found?
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{
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country: result.country.name,
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country_code: result.country.iso_code,
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region: result.subdivisions.most_specific.name,
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city: result.city.name,
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}
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end
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def get(ip)
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return {} unless @mmdb
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@cache[ip] ||= lookup(ip)
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end
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def self.get(ip)
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instance.get(ip)
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end
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end
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