Class: IP2Country

Inherits:
Object
  • Object
show all
Defined in:
lib/ip2country.rb,
lib/ip2country/country.rb

Overview

IP2Country is used to lookup a host IP from a specified user ip2country database and determine their regional location.

Defined Under Namespace

Classes: Country

Instance Method Summary collapse

Constructor Details

#initialize(database = "#{File.dirname(__FILE__)}/ip2country/ip2country.db") ⇒ IP2Country

Initialize IP2Country instance using a specified database. If no database is provided, then it will attempt to use the default one packaged with this library.



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# File 'lib/ip2country.rb', line 10

def initialize(database = "#{File.dirname(__FILE__)}/ip2country/ip2country.db")
  @db_file = File.expand_path(database.to_s)
  @db      = SQLite3::Database.open(@db_file)
end

Instance Method Details

#lookup(ip) ⇒ Object

Lookup a host IP to figure out their region. If successful, an IP2Country::Country instance will be returned, else nil.



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# File 'lib/ip2country.rb', line 17

def lookup(ip)
  long   = ip2long(ip)
  result = @db.execute("SELECT country_code2, country_code3, country_name FROM ip2country WHERE ip_from <= #{long} AND ip_to >= #{long}")[0]
  Country.new(*result) if result
end