发布:2022/12/21 14:18:38作者:管理员 来源:本站 浏览次数:558
我如何确定特定IP地址源自使用c#的国家/地区。 我需要使用它来检查连接是否来自特定国家/地区。
您可以在项目中使用此SQL数据来确定: IP地址地理定位SQL数据库 。 下载该数据并将其导入数据库以在本地运行检查。
或者您可以使用他们的免费API返回包含国家/地区代码和国家/地区名称的XML。 您将使用您要检查的IP地址向以下URL发出请求,如下例所示:
http://ipinfodb.com/ip_query_country.php?ip=74.125.45.100
返回:
74.125.45.100 OK US United States
只是一个简单的API调用,例如https://ipapi.co/8.8.8.8/country/
C#示例:using System;
using System.Net;
using System.IO;
using System.Text;
public class Program {
public static void Main() {
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://ipapi.co/8.8.8.8/country/");
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
var reader = new System.IO.StreamReader(response.GetResponseStream(), ASCIIEncoding.ASCII);
Console.WriteLine(reader.ReadToEnd());
}
}
你可以请谷歌为你做这件事。
您还可以支付以下服务:
这是一个免费的国家IP地址数据库 。
如果您不想使用像hostip.info那样的API,那么我建议订阅maxmind并在本地运行主机查找数据库。
ip2cc – 通过IP地址查找国家和俄罗斯地区Python模块,使用脚本从最新的官方数据创建数据库。
此Python实用程序会加载(尽可能频繁地)来自地区Internet注册站点( arin , ripencc , apnic , lacnic , afrinic )的最新信息,如源代码所示 :
url_template = 'ftp://ftp.ripe.net/pub/stats/%s/delegated-%s-latest' sources = {} for name in ('arin', 'ripencc', 'apnic', 'lacnic', 'afrinic'): sources[name] = url_template % (name, name)
加载数据后,可以离线并非常快速地回答查询。 可以轻松修改以直接回答原始问题,或者从命令行使用返回国家/地区所属的IP address 。
您可以使用的另一项服务是我自己的http://ipinfo.io ,它返回位置,组织和其他信息:
$ curl ipinfo.io/8.8.8.8 { "ip": "8.8.8.8", "hostname": "google-public-dns-a.google.com", "loc": "37.385999999999996,-122.0838", "org": "AS15169 Google Inc.", "city": "Mountain View", "region": "California", "country": "US", "phone": 650 }
有关更多信息,请参阅http://ipinfo.io/developers 。
以下是使用https://ipdata.co执行此操作的方法
//Common testing requirement. If you are consuming an API in a sandbox/test region, uncomment this line of code ONLY for non production uses. //System.Net.ServicePointManager.ServerCertificateValidationCallback = delegate { return true; }; //Be sure to run "Install-Package Microsoft.Net.Http" from your nuget command line.
using System;
using System.Net.Http;
var baseAddress = new Uri("https://api.ipdata.co/78.8.53.5");
using (var httpClient = new HttpClient{BaseAddress = baseAddress})
{
httpClient.DefaultRequestHeaders.TryAddWithoutValidation("accept", "application/json");
using(var response = await httpClient.GetAsync("undefined")) {
string responseData = await response.Content.ReadAsStringAsync();
}
}
通过curl
curl https://api.ipdata.co/78.8.53.5 { "ip": "78.8.53.5", "city": "Gu0142ogu00f3w", "region": "Lower Silesia", "region_code": "DS", "country_name": "Poland", "country_code": "PL", "continent_name": "Europe", "continent_code": "EU", "latitude": 51.6461, "longitude": 16.1678, "asn": "AS12741", "organisation": "Netia SA", "postal": "67-200", "currency": "PLN", "currency_symbol": "zu0142", "calling_code": "48", "flag": "http://sofzh.miximages.com/c%23/pl.png", "emoji_flag": "ud83cuddf5ud83cuddf1", "time_zone": "Europe/Warsaw", "is_eu": true, "suspicious_factors": { "is_tor": false } }⏎
对于脱机数据库,您可以获得免费的IP2Location LITE DB1
要创建表
CREATE DATABASE ip2location GO USE ip2location GO CREATE TABLE [ip2location].[dbo].[ip2location_db1]( [ip_from] float NOT NULL, [ip_to] float NOT NULL, [country_code] nvarchar(2) NOT NULL, [country_name] nvarchar(64) NOT NULL, ) ON [PRIMARY] GO CREATE INDEX [ip_from] ON [ip2location].[dbo].[ip2location_db1]([ip_from]) ON [PRIMARY] GO CREATE INDEX [ip_to] ON [ip2location].[dbo].[ip2location_db1]([ip_to]) ON [PRIMARY] GO
要导入数据
BULK INSERT [ip2location].[dbo].[ip2location_db1] FROM 'C:[path to your CSV file]IP2LOCATION-LITE-DB1.CSV' WITH ( FORMATFILE = 'C:[path to your DB1.FMT file]DB1.FMT' ) GO
对于FMT文件
10.0 5 1 SQLCHAR 0 1 """ 0 first_double_quote Latin1_General_CI_AI 2 SQLCHAR 0 20 "","" 1 ip_from "" 3 SQLCHAR 0 20 "","" 2 ip_to "" 4 SQLCHAR 0 2 "","" 3 country_code Latin1_General_CI_AI 5 SQLCHAR 0 64 ""rn" 4 country_name Latin1_General_CI_AI
FMT代码的第一行表示bcp的版本。 请根据您安装的MS-SQL更改版本。
SQL Server 2016 12.0
SQL Server 2014 12.0
SQL Server 2012 11.0
SQL Server 2008/2008 R2 10.0
SQL Server 2005 9.0
SQL Server 2000 8.0
SQL Server 7.0 7.0
SQL Server 6.5 6.5
用于查询MSSQL的C#代码
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using System.Data.SqlClient;
using System.Numerics;
using System.Net;
using System.Text;
public class Form1 {
private void Form1_Load(object sender, System.EventArgs e) {
string ip = "8.8.8.8"; this.IP2Location(ip);
}
private void IP2Location(string myip) {
IPAddress address = null;
if (IPAddress.TryParse(myip, address)) {
byte[] addrBytes = address.GetAddressBytes();
this.LittleEndian(addrBytes);
UInt32 ipno = 0;
ipno = BitConverter.ToUInt32(addrBytes, 0);
string sql = "SELECT TOP 1 * FROM ip2location_db1 WHERE ip_to >= '" + ipno.ToString() + "'";
object conn = new SqlConnection("Server=yourserver;Database=yourdatabase;
User Id=youruserid;Password=yourpassword;");
object comm = new SqlCommand(sql, conn);
SqlDataReader reader; comm.Connection.Open();
reader = comm.ExecuteReader(CommandBehavior.CloseConnection);
int x = 0;
object sb = new StringBuilder(250);
if (reader.HasRows) {
if (reader.Read()) {
for (x = 0; (x <= (reader.FieldCount() - 1)); x++) {
sb.Append((reader.GetName(x) + (": " + (reader.GetValue(x) + "rn"))));
}
}
}
reader.Close();
MsgBox(sb.ToString());
}
}
private void LittleEndian(ref byte[] byteArr) {
if (BitConverter.IsLittleEndian) {
List byteList = new List(byteArr);
byteList.Reverse();
byteArr = byteList.ToArray();
}
}
}
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