IP 轉地址

1.須要  QQWry.Dat IP 地址數據庫

2輔助類庫

  1   1 using System;
  2   2 using System.Collections.Generic;
  3   3 using System.IO;
  4   4 using System.Linq;
  5   5 using System.Text;
  6   6 using System.Text.RegularExpressions;
  7   7 using System.Threading.Tasks;
  8   8 
  9   9 namespace Utilities
 10  10 {
 11  11     /// <summary>  
 12  12     /// 根據IP地址查詢所在地
 13  13     /// </summary>  
 14  14     public class IPScanerHelper
 15  15     {
 16  16         #region 私有成員
 17  17         private string dataPath;
 18  18         private string ip;
 19  19         private string country;
 20  20         private string local;
 21  21 
 22  22         private long firstStartIp = 0;
 23  23         private long lastStartIp = 0;
 24  24         private FileStream objfs = null;
 25  25         private long startIp = 0;
 26  26         private long endIp = 0;
 27  27         private int countryFlag = 0;
 28  28         private long endIpOff = 0;
 29  29         private string errMsg = null;
 30  30         #endregion
 31  31 
 32  32         #region 構造函數
 33  33         public IPScanerHelper()
 34  34         {
 35  35             //  
 36  36             // TODO: 在此處添加構造函數邏輯  
 37  37             //  
 38  38         }
 39  39         #endregion
 40  40 
 41  41         #region 公共屬性
 42  42         public string DataPath
 43  43         {
 44  44             set { dataPath = value; }
 45  45         }
 46  46         public string IP
 47  47         {
 48  48             set { ip = value; }
 49  49         }
 50  50         public string Country
 51  51         {
 52  52             get { return country; }
 53  53         }
 54  54         public string Local
 55  55         {
 56  56             get { return local; }
 57  57         }
 58  58         public string ErrMsg
 59  59         {
 60  60             get { return errMsg; }
 61  61         }
 62  62         #endregion
 63  63 
 64  64         #region 搜索匹配數據
 65  65         private int QQwry()
 66  66         {
 67  67             string pattern = @"(((\d{1,2})|(1\d{2})|(2[0-4]\d)|(25[0-5]))\.){3}((\d{1,2})|(1\d{2})|(2[0-4]\d)|(25[0-5]))";
 68  68             Regex objRe = new Regex(pattern);
 69  69             Match objMa = objRe.Match(ip);
 70  70             if (!objMa.Success)
 71  71             {
 72  72                 this.errMsg = "IP格式錯誤";
 73  73                 return 4;
 74  74             }
 75  75 
 76  76             long ip_Int = this.IpToInt(ip);
 77  77             int nRet = 0;
 78  78             if (ip_Int >= IpToInt("127.0.0.0") && ip_Int <= IpToInt("127.255.255.255"))
 79  79             {
 80  80                 this.country = "本機內部環回地址";
 81  81                 this.local = "";
 82  82                 nRet = 1;
 83  83             }
 84  84             else if ((ip_Int >= IpToInt("0.0.0.0") && ip_Int <= IpToInt("2.255.255.255")) || (ip_Int >= IpToInt("64.0.0.0") && ip_Int <= IpToInt("126.255.255.255")) || (ip_Int >= IpToInt("58.0.0.0") && ip_Int <= IpToInt("60.255.255.255")))
 85  85             {
 86  86                 this.country = "網絡保留地址";
 87  87                 this.local = "";
 88  88                 nRet = 1;
 89  89             }
 90  90             objfs = new FileStream(this.dataPath, FileMode.Open, FileAccess.Read);
 91  91             try
 92  92             {
 93  93                 //objfs.Seek(0,SeekOrigin.Begin);  
 94  94                 objfs.Position = 0;
 95  95                 byte[] buff = new Byte[8];
 96  96                 objfs.Read(buff, 0, 8);
 97  97                 firstStartIp = buff[0] + buff[1] * 256 + buff[2] * 256 * 256 + buff[3] * 256 * 256 * 256;
 98  98                 lastStartIp = buff[4] * 1 + buff[5] * 256 + buff[6] * 256 * 256 + buff[7] * 256 * 256 * 256;
 99  99                 long recordCount = Convert.ToInt64((lastStartIp - firstStartIp) / 7.0);
100 100                 if (recordCount <= 1)
101 101                 {
102 102                     country = "FileDataError";
103 103                     objfs.Close();
104 104                     return 2;
105 105                 }
106 106                 long rangE = recordCount;
107 107                 long rangB = 0;
108 108                 long recNO = 0;
109 109                 while (rangB < rangE - 1)
110 110                 {
111 111                     recNO = (rangE + rangB) / 2;
112 112                     this.GetStartIp(recNO);
113 113                     if (ip_Int == this.startIp)
114 114                     {
115 115                         rangB = recNO;
116 116                         break;
117 117                     }
118 118                     if (ip_Int > this.startIp)
119 119                         rangB = recNO;
120 120                     else
121 121                         rangE = recNO;
122 122                 }
123 123                 this.GetStartIp(rangB);
124 124                 this.GetEndIp();
125 125                 if (this.startIp <= ip_Int && this.endIp >= ip_Int)
126 126                 {
127 127                     this.GetCountry();
128 128                     this.local = this.local.Replace("（咱們必定要解放臺灣！！！）", "");
129 129                 }
130 130                 else
131 131                 {
132 132                     nRet = 3;
133 133                     this.country = "未知";
134 134                     this.local = "";
135 135                 }
136 136                 objfs.Close();
137 137                 return nRet;
138 138             }
139 139             catch
140 140             {
141 141                 return 1;
142 142             }
143 143 
144 144         }
145 145         #endregion
146 146 
147 147         #region IP地址轉換成Int數據
148 148         private long IpToInt(string ip)
149 149         {
150 150             char[] dot = new char[] { '.' };
151 151             string[] ipArr = ip.Split(dot);
152 152             if (ipArr.Length == 3)
153 153                 ip = ip + ".0";
154 154             ipArr = ip.Split(dot);
155 155 
156 156             long ip_Int = 0;
157 157             long p1 = long.Parse(ipArr[0]) * 256 * 256 * 256;
158 158             long p2 = long.Parse(ipArr[1]) * 256 * 256;
159 159             long p3 = long.Parse(ipArr[2]) * 256;
160 160             long p4 = long.Parse(ipArr[3]);
161 161             ip_Int = p1 + p2 + p3 + p4;
162 162             return ip_Int;
163 163         }
164 164         #endregion
165 165 
166 166         #region int轉換成IP
167 167         private string IntToIP(long ip_Int)
168 168         {
169 169             long seg1 = (ip_Int & 0xff000000) >> 24;
170 170             if (seg1 < 0)
171 171                 seg1 += 0x100;
172 172             long seg2 = (ip_Int & 0x00ff0000) >> 16;
173 173             if (seg2 < 0)
174 174                 seg2 += 0x100;
175 175             long seg3 = (ip_Int & 0x0000ff00) >> 8;
176 176             if (seg3 < 0)
177 177                 seg3 += 0x100;
178 178             long seg4 = (ip_Int & 0x000000ff);
179 179             if (seg4 < 0)
180 180                 seg4 += 0x100;
181 181             string ip = seg1.ToString() + "." + seg2.ToString() + "." + seg3.ToString() + "." + seg4.ToString();
182 182 
183 183             return ip;
184 184         }
185 185         #endregion
186 186 
187 187         #region 獲取起始IP範圍
188 188         private long GetStartIp(long recNO)
189 189         {
190 190             long offSet = firstStartIp + recNO * 7;
191 191             //objfs.Seek(offSet,SeekOrigin.Begin);  
192 192             objfs.Position = offSet;
193 193             byte[] buff = new Byte[7];
194 194             objfs.Read(buff, 0, 7);
195 195 
196 196             endIpOff = Convert.ToInt64(buff[4].ToString()) + Convert.ToInt64(buff[5].ToString()) * 256 + Convert.ToInt64(buff[6].ToString()) * 256 * 256;
197 197             startIp = Convert.ToInt64(buff[0].ToString()) + Convert.ToInt64(buff[1].ToString()) * 256 + Convert.ToInt64(buff[2].ToString()) * 256 * 256 + Convert.ToInt64(buff[3].ToString()) * 256 * 256 * 256;
198 198             return startIp;
199 199         }
200 200         #endregion
201 201 
202 202         #region 獲取結束IP
203 203         private long GetEndIp()
204 204         {
205 205             //objfs.Seek(endIpOff,SeekOrigin.Begin);  
206 206             objfs.Position = endIpOff;
207 207             byte[] buff = new Byte[5];
208 208             objfs.Read(buff, 0, 5);
209 209             this.endIp = Convert.ToInt64(buff[0].ToString()) + Convert.ToInt64(buff[1].ToString()) * 256 + Convert.ToInt64(buff[2].ToString()) * 256 * 256 + Convert.ToInt64(buff[3].ToString()) * 256 * 256 * 256;
210 210             this.countryFlag = buff[4];
211 211             return this.endIp;
212 212         }
213 213         #endregion
214 214 
215 215         #region 獲取國家/區域偏移量
216 216         private string GetCountry()
217 217         {
218 218             switch (this.countryFlag)
219 219             {
220 220                 case 1:
221 221                 case 2:
222 222                     this.country = GetFlagStr(this.endIpOff + 4);
223 223                     this.local = (1 == this.countryFlag) ? " " : this.GetFlagStr(this.endIpOff + 8);
224 224                     break;
225 225                 default:
226 226                     this.country = this.GetFlagStr(this.endIpOff + 4);
227 227                     this.local = this.GetFlagStr(objfs.Position);
228 228                     break;
229 229             }
230 230             return " ";
231 231         }
232 232         #endregion
233 233 
234 234         #region 獲取國家/區域字符串
235 235         private string GetFlagStr(long offSet)
236 236         {
237 237             int flag = 0;
238 238             byte[] buff = new Byte[3];
239 239             while (1 == 1)
240 240             {
241 241                 //objfs.Seek(offSet,SeekOrigin.Begin);  
242 242                 objfs.Position = offSet;
243 243                 flag = objfs.ReadByte();
244 244                 if (flag == 1 || flag == 2)
245 245                 {
246 246                     objfs.Read(buff, 0, 3);
247 247                     if (flag == 2)
248 248                     {
249 249                         this.countryFlag = 2;
250 250                         this.endIpOff = offSet - 4;
251 251                     }
252 252                     offSet = Convert.ToInt64(buff[0].ToString()) + Convert.ToInt64(buff[1].ToString()) * 256 + Convert.ToInt64(buff[2].ToString()) * 256 * 256;
253 253                 }
254 254                 else
255 255                 {
256 256                     break;
257 257                 }
258 258             }
259 259             if (offSet < 12)
260 260                 return " ";
261 261             objfs.Position = offSet;
262 262             return GetStr();
263 263         }
264 264         #endregion
265 265 
266 266         #region GetStr
267 267         private string GetStr()
268 268         {
269 269             byte lowC = 0;
270 270             byte upC = 0;
271 271             string str = "";
272 272             byte[] buff = new byte[2];
273 273             while (1 == 1)
274 274             {
275 275                 lowC = (Byte)objfs.ReadByte();
276 276                 if (lowC == 0)
277 277                     break;
278 278                 if (lowC > 127)
279 279                 {
280 280                     upC = (byte)objfs.ReadByte();
281 281                     buff[0] = lowC;
282 282                     buff[1] = upC;
283 283                     System.Text.Encoding enc = System.Text.Encoding.GetEncoding("GB2312");
284 284                     str += enc.GetString(buff);
285 285                 }
286 286                 else
287 287                 {
288 288                     str += (char)lowC;
289 289                 }
290 290             }
291 291             return str;
292 292         }
293 293         #endregion
294 294 
295 295         #region 獲取IP地址
296 296         public string IPLocation()
297 297         {
298 298             this.QQwry();
299 299             return this.country + this.local;
300 300         }
301 301         public string IPLocation(string dataPath, string ip)
302 302         {
303 303             this.dataPath = dataPath;
304 304             this.ip = ip;
305 305             this.QQwry();
306 306             return this.country + this.local;
307 307         }
308 308         #endregion
309 309     }
310 310 }

View Code

 

3.測試

1 string IPAddress = NetHelper.GetIPAddress();
2 IPScanerHelper objScan = new IPScanerHelper();
3 objScan.IP = IPAddress;
4 objScan.DataPath = Server.MapPath("~/Resource/IPScaner/QQWry.Dat");
5 string IPAddressName =objScan.IPLocation();