你可以使用 geoip 宝石。

环境.rb

config.gem 'geoip'

下载 GeoIP.dat.gz 从 http://www.maxmind.com/app/geolitecountry . 解压缩文件。下面假设 #{RAILS_ROOT}/db 迪尔

@geoip ||= GeoIP.new("#{RAILS_ROOT}/db/GeoIP.dat")    
remote_ip = request.remote_ip 
if remote_ip != "127.0.0.1" #todo: check for other local addresses or set default value
  location_location = @geoip.country(remote_ip)
  if location_location != nil     
    @model.country = location_location[2]
  end
end

你也可以使用“ Geocoder “

它只会让你的生活更轻松。在gemfile中输入以下行并发出bundle install命令

gem 'geocoder'

使用此gem,您可以很容易地获得原始ip的国家、ip甚至城市。参见下面的示例

request.ip  # =>    "182.185.141.75"
request.location.city   # =>    ""
request.location.country    # =>    "Pakistan"

我用这一行:

locale = Timeout::timeout(5) { Net::HTTP.get_response(URI.parse('http://api.hostip.info/country.php?ip=' + request.remote_ip )).body } rescue "US"

最简单的方法是为此使用现有的web服务。

有一些插件可以让您做更多的事情,包括让您的模型自动感知地理位置(geokit rails),但是如果您只需要一个国家代码(例如),只需发送一个http get到 http://api.hostip.info/country.php (还有其他服务,但此服务不需要API密钥)将返回该服务,例如:

Net::HTTP.get_response(URI.parse('http://api.hostip.info/country.php'))
=> US

或轮询 http://api.hostip.info/ 将返回包含城市、纬度、经度等的完整XML响应。

请注意,您得到的结果并非100%准确。例如,我现在在法国,但在德国有报道。几乎所有基于IP的服务都是这样。

你可以用我自己的服务来做这件事, https://ipinfo.io . 它提供了国家代码和其他一些细节:

$ curl ipinfo.io
{
  "ip": "24.6.61.239",
  "hostname": "c-24-6-61-239.hsd1.ca.comcast.net",
  "city": "Mountain View",
  "region": "California",
  "country": "US",
  "loc": "37.3845,-122.0881",
  "org": "AS7922 Comcast Cable Communications, LLC",
  "postal": "94040"
}

如果你只想要这个国家,你可以通过请求 /country

$ curl ipinfo.io/country
US

然后,您可以使用来自 http://country.io ,或使用 http://ipinfo.io/developers/full-country-names

我刚刚出版了一本 IPLocate.io API 是我创造的。

超级简单,无需下载数据库,每天有1500个免费请求:

require 'iplocate'

# Look up an IP address
results = IPLocate.lookup("8.8.8.8")

# Or with an API key
results = IPLocate.lookup("8.8.8.8", "abcdef")

results["country"]
# "United States"

results["country_code"]
# "US"

results["org"]
# "Google LLC"

results.inspect
# {
#   "ip"=>"8.8.8.8",
#   "country"=>"United States",
#   "country_code"=>"US",
#   "city"=>nil,
#   "continent"=>"North America",
#   "latitude"=>37.751,
#   "longitude"=>-97.822,
#   "time_zone"=>nil,
#   "postal_code"=>nil,
#   "org"=>"Google LLC",
#   "asn"=>"AS15169"
# }  

无宝石

它也可以在没有宝石的情况下使用,只需使用ruby的 Net::HTTP 和 URI :

response = Net::HTTP.get( URI.parse( "https://www.iplocate.io/api/lookup/8.8.8.8" ) )

请求将返回json,因此您可以按如下方式解析和访问它:

country = JSON.parse( response )["country"]
# => "US"

你可以试试 Yandex locator gem ,服务返回经度、纬度和精度。

conn = YandexLocator::Client.new
result = conn.lookup(ip: "109.252.52.39")
# => {"position"=>{"altitude"=>0.0, "altitude_precision"=>30.0, "latitude"=>55.75395965576172, "longitude"=>37.62039184570312, "precision"=>100000.0, "type"=>"ip"}}

下面是一个ruby示例,它调用 ipdata.co 应用程序编程接口。

它速度快,性能可靠,因为有10个全局终结点,每个都能够处理每秒10000个请求!

这个答案使用了一个非常有限的“test”api密钥,只用于测试几个调用。 Signup 对于您自己的免费api密钥,每天最多可以获得1500个开发请求。

替换 78.8.53.5 你想查的任何IP

require 'rubygems' if RUBY_VERSION < '1.9'
require 'rest_client'

headers = {
  :accept => 'application/json'
}

response = RestClient.get 'https://api.ipdata.co/78.8.53.5?api-key=test', headers
puts response

那会给你

{
    "ip": "78.8.53.5",
    "is_eu": true,
    "city": "G\u0142og\u00f3w",
    "region": "Lower Silesia",
    "region_code": "DS",
    "country_name": "Poland",
    "country_code": "PL",
    "continent_name": "Europe",
    "continent_code": "EU",
    "latitude": 51.6557,
    "longitude": 16.089,
    "asn": "AS12741",
    "organisation": "Netia SA",
    "postal": "67-200",
    "calling_code": "48",
    "flag": "https://ipdata.co/flags/pl.png",
    "emoji_flag": "\ud83c\uddf5\ud83c\uddf1",
    "emoji_unicode": "U+1F1F5 U+1F1F1",
    "carrier": {
        "name": "Netia",
        "mcc": "260",
        "mnc": "07"
    },
    "languages": [
        {
            "name": "Polish",
            "native": "Polski"
        }
    ],
    "currency": {
        "name": "Polish Zloty",
        "code": "PLN",
        "symbol": "z\u0142",
        "native": "z\u0142",
        "plural": "Polish zlotys"
    },
    "time_zone": {
        "name": "Europe/Warsaw",
        "abbr": "CEST",
        "offset": "+0200",
        "is_dst": true,
        "current_time": "2018-08-29T15:34:23.518065+02:00"
    },
    "threat": {
        "is_tor": false,
        "is_proxy": false,
        "is_anonymous": false,
        "is_known_attacker": false,
        "is_known_abuser": false,
        "is_threat": false,
        "is_bogon": false
    },
}

试试ip2location ruby

https://github.com/ip2location/ip2location-ruby

先决条件

从下载免费的lite数据库 http://lite.ip2location.com/ 在下面使用。

安装

gem install ip2location_ruby

用法

require 'ip2location_ruby'

i2l = Ip2location.new.open("./data/IP-COUNTRY-SAMPLE.BIN")
record = i2l.get_all('8.8.8.8')

print 'Country Code: ' + record.country_short + "\n"
print 'Country Name: ' + record.country_long + "\n"
print 'Region Name: ' + record.region + "\n"
print 'City Name: ' + record.city + "\n"
print 'Latitude: '
print record.latitude
print "\n"
print 'Longitude: '
print record.longitude
print "\n"
print 'ISP: ' + record.isp + "\n"
print 'Domain: ' + record.domain + "\n"
print 'Net Speed: ' + record.netspeed + "\n"
print 'Area Code: ' + record.areacode + "\n"
print 'IDD Code: ' + record.iddcode + "\n"
print 'Time Zone: ' + record.timezone + "\n"
print 'ZIP Code: ' + record.zipcode + "\n"
print 'Weather Station Code: ' + record.weatherstationname + "\n"
print 'Weather Station Name: ' + record.weatherstationcode + "\n"
print 'MCC: ' + record.mcc + "\n"
print 'MNC: ' + record.mnc + "\n"
print 'Mobile Name: ' + record.mobilebrand + "\n"
print 'Elevation: '
print record.elevation
print "\n"
print 'Usage Type: ' + record.usagetype + "\n"

这个 geoip gem不再适用于新的maxmind数据库。有一种新的宝石能做到这一点, MaxMind-DB-Reader-ruby .

只需从 MaxMind ,解压缩并使用以下类型的代码:

require 'maxmind/db'

reader = MaxMind::DB.new('GeoIP2-City.mmdb', mode: MaxMind::DB::MODE_MEMORY)

# you probably want to replace 1.1.1.1 with  request.remote_ip
# or request.env['HTTP_X_FORWARDED_FOR']
ip_addr = '1.1.1.1'
record = reader.get(ip_addr)
if record.nil?
  puts '#{ip_addr} was not found in the database'
else
  puts record['country']['iso_code']
  puts record['country']['names']['en']
end

reader.close

根据你的需要调整。我在初始化器中创建了一个方法,可以根据需要调用它。