1 | /**
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2 | * LookupService.cs
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3 | *
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4 | * Copyright (C) 2008 MaxMind Inc. All Rights Reserved.
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5 | *
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6 | * This library is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU Lesser General Public
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8 | * License as published by the Free Software Foundation; either
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9 | * version 2.1 of the License, or (at your option) any later version.
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10 | *
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11 | * This library is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | * Lesser General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU Lesser General Public
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17 | * License along with this library; if not, write to the Free Software
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18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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19 | */
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20 |
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21 |
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22 | using System;
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23 | using System.IO;
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24 | using System.Net;
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25 | using System.Runtime.CompilerServices;
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26 |
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27 | public class LookupService {
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28 | private FileStream file = null;
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29 | private DatabaseInfo databaseInfo = null;
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30 | byte databaseType = Convert.ToByte(DatabaseInfo.COUNTRY_EDITION);
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31 | int[] databaseSegments;
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32 | int recordLength;
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33 | int dboptions;
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34 | byte[] dbbuffer;
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35 |
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36 | String licenseKey;
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37 | int dnsService = 0;
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38 | private static Country UNKNOWN_COUNTRY = new Country("--", "N/A");
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39 | private static int COUNTRY_BEGIN = 16776960;
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40 | private static int STATE_BEGIN = 16700000;
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41 | private static int STRUCTURE_INFO_MAX_SIZE = 20;
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42 | private static int DATABASE_INFO_MAX_SIZE = 100;
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43 | private static int FULL_RECORD_LENGTH = 100;//???
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44 | private static int SEGMENT_RECORD_LENGTH = 3;
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45 | private static int STANDARD_RECORD_LENGTH = 3;
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46 | private static int ORG_RECORD_LENGTH = 4;
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47 | private static int MAX_RECORD_LENGTH = 4;
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48 | private static int MAX_ORG_RECORD_LENGTH = 1000;//???
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49 | private static int FIPS_RANGE = 360;
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50 | private static int STATE_BEGIN_REV0 = 16700000;
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51 | private static int STATE_BEGIN_REV1 = 16000000;
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52 | private static int US_OFFSET = 1;
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53 | private static int CANADA_OFFSET = 677;
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54 | private static int WORLD_OFFSET = 1353;
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55 | public static int GEOIP_STANDARD = 0;
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56 | public static int GEOIP_MEMORY_CACHE = 1;
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57 | public static int GEOIP_UNKNOWN_SPEED = 0;
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58 | public static int GEOIP_DIALUP_SPEED = 1;
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59 | public static int GEOIP_CABLEDSL_SPEED = 2;
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60 | public static int GEOIP_CORPORATE_SPEED = 3;
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61 |
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62 | private static String[] countryCode = {
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63 | "--","AP","EU","AD","AE","AF","AG","AI","AL","AM","AN","AO","AQ","AR",
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64 | "AS","AT","AU","AW","AZ","BA","BB","BD","BE","BF","BG","BH","BI","BJ",
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65 | "BM","BN","BO","BR","BS","BT","BV","BW","BY","BZ","CA","CC","CD","CF",
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66 | "CG","CH","CI","CK","CL","CM","CN","CO","CR","CU","CV","CX","CY","CZ",
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67 | "DE","DJ","DK","DM","DO","DZ","EC","EE","EG","EH","ER","ES","ET","FI",
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68 | "FJ","FK","FM","FO","FR","FX","GA","GB","GD","GE","GF","GH","GI","GL",
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69 | "GM","GN","GP","GQ","GR","GS","GT","GU","GW","GY","HK","HM","HN","HR",
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70 | "HT","HU","ID","IE","IL","IN","IO","IQ","IR","IS","IT","JM","JO","JP",
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71 | "KE","KG","KH","KI","KM","KN","KP","KR","KW","KY","KZ","LA","LB","LC",
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72 | "LI","LK","LR","LS","LT","LU","LV","LY","MA","MC","MD","MG","MH","MK",
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73 | "ML","MM","MN","MO","MP","MQ","MR","MS","MT","MU","MV","MW","MX","MY",
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74 | "MZ","NA","NC","NE","NF","NG","NI","NL","NO","NP","NR","NU","NZ","OM",
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75 | "PA","PE","PF","PG","PH","PK","PL","PM","PN","PR","PS","PT","PW","PY",
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76 | "QA","RE","RO","RU","RW","SA","SB","SC","SD","SE","SG","SH","SI","SJ",
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77 | "SK","SL","SM","SN","SO","SR","ST","SV","SY","SZ","TC","TD","TF","TG",
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78 | "TH","TJ","TK","TM","TN","TO","TL","TR","TT","TV","TW","TZ","UA","UG",
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79 | "UM","US","UY","UZ","VA","VC","VE","VG","VI","VN","VU","WF","WS","YE",
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80 | "YT","RS","ZA","ZM","ME","ZW","A1","A2","O1","AX","GG","IM","JE","BL",
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81 | "MF"};
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82 |
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83 | private static String[] countryName = {
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84 | "N/A","Asia/Pacific Region","Europe","Andorra","United Arab Emirates",
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85 | "Afghanistan","Antigua and Barbuda","Anguilla","Albania","Armenia",
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86 | "Netherlands Antilles","Angola","Antarctica","Argentina","American Samoa",
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87 | "Austria","Australia","Aruba","Azerbaijan","Bosnia and Herzegovina",
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88 | "Barbados","Bangladesh","Belgium","Burkina Faso","Bulgaria","Bahrain",
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89 | "Burundi","Benin","Bermuda","Brunei Darussalam","Bolivia","Brazil","Bahamas",
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90 | "Bhutan","Bouvet Island","Botswana","Belarus","Belize","Canada",
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91 | "Cocos (Keeling) Islands","Congo, The Democratic Republic of the",
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92 | "Central African Republic","Congo","Switzerland","Cote D'Ivoire",
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93 | "Cook Islands","Chile","Cameroon","China","Colombia","Costa Rica","Cuba",
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94 | "Cape Verde","Christmas Island","Cyprus","Czech Republic","Germany",
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95 | "Djibouti","Denmark","Dominica","Dominican Republic","Algeria","Ecuador",
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96 | "Estonia","Egypt","Western Sahara","Eritrea","Spain","Ethiopia","Finland",
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97 | "Fiji","Falkland Islands (Malvinas)","Micronesia, Federated States of",
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98 | "Faroe Islands","France","France, Metropolitan","Gabon","United Kingdom",
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99 | "Grenada","Georgia","French Guiana","Ghana","Gibraltar","Greenland","Gambia",
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100 | "Guinea","Guadeloupe","Equatorial Guinea","Greece",
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101 | "South Georgia and the South Sandwich Islands","Guatemala","Guam",
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102 | "Guinea-Bissau","Guyana","Hong Kong","Heard Island and McDonald Islands",
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103 | "Honduras","Croatia","Haiti","Hungary","Indonesia","Ireland","Israel","India",
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104 | "British Indian Ocean Territory","Iraq","Iran, Islamic Republic of",
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105 | "Iceland","Italy","Jamaica","Jordan","Japan","Kenya","Kyrgyzstan","Cambodia",
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106 | "Kiribati","Comoros","Saint Kitts and Nevis",
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107 | "Korea, Democratic People's Republic of","Korea, Republic of","Kuwait",
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108 | "Cayman Islands","Kazakhstan","Lao People's Democratic Republic","Lebanon",
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109 | "Saint Lucia","Liechtenstein","Sri Lanka","Liberia","Lesotho","Lithuania",
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110 | "Luxembourg","Latvia","Libyan Arab Jamahiriya","Morocco","Monaco",
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111 | "Moldova, Republic of","Madagascar","Marshall Islands",
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112 | "Macedonia, the Former Yugoslav Republic of","Mali","Myanmar","Mongolia",
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113 | "Macau","Northern Mariana Islands","Martinique","Mauritania","Montserrat",
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114 | "Malta","Mauritius","Maldives","Malawi","Mexico","Malaysia","Mozambique",
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115 | "Namibia","New Caledonia","Niger","Norfolk Island","Nigeria","Nicaragua",
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116 | "Netherlands","Norway","Nepal","Nauru","Niue","New Zealand","Oman","Panama",
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117 | "Peru","French Polynesia","Papua New Guinea","Philippines","Pakistan",
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118 | "Poland","Saint Pierre and Miquelon","Pitcairn","Puerto Rico","" +
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119 | "Palestinian Territory, Occupied","Portugal","Palau","Paraguay","Qatar",
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120 | "Reunion","Romania","Russian Federation","Rwanda","Saudi Arabia",
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121 | "Solomon Islands","Seychelles","Sudan","Sweden","Singapore","Saint Helena",
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122 | "Slovenia","Svalbard and Jan Mayen","Slovakia","Sierra Leone","San Marino",
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123 | "Senegal","Somalia","Suriname","Sao Tome and Principe","El Salvador",
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124 | "Syrian Arab Republic","Swaziland","Turks and Caicos Islands","Chad",
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125 | "French Southern Territories","Togo","Thailand","Tajikistan","Tokelau",
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126 | "Turkmenistan","Tunisia","Tonga","Timor-Leste","Turkey","Trinidad and Tobago",
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127 | "Tuvalu","Taiwan","Tanzania, United Republic of","Ukraine","Uganda",
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128 | "United States Minor Outlying Islands","United States","Uruguay","Uzbekistan",
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129 | "Holy See (Vatican City State)","Saint Vincent and the Grenadines",
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130 | "Venezuela","Virgin Islands, British","Virgin Islands, U.S.","Vietnam",
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131 | "Vanuatu","Wallis and Futuna","Samoa","Yemen","Mayotte","Serbia",
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132 | "South Africa","Zambia","Montenegro","Zimbabwe","Anonymous Proxy",
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133 | "Satellite Provider","Other",
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134 | "Aland Islands","Guernsey","Isle of Man","Jersey","Saint Barthelemy",
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135 | "Saint Martin"};
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136 |
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137 | public LookupService(String databaseFile, int options) {
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138 | try {
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139 | this.file = new FileStream(databaseFile, FileMode.Open, FileAccess.Read);
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140 | dboptions = options;
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141 | init();
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142 | }
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143 | catch (System.SystemException) {
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144 | Console.Write("cannot open file " + databaseFile + "\n");
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145 | }
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146 | }
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147 |
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148 | public LookupService(String databaseFile)
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149 | : this(databaseFile, GEOIP_STANDARD) {
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150 | }
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151 |
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152 | private void init() {
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153 | int i, j;
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154 | byte[] delim = new byte[3];
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155 | byte[] buf = new byte[SEGMENT_RECORD_LENGTH];
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156 | databaseType = (byte)DatabaseInfo.COUNTRY_EDITION;
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157 | recordLength = STANDARD_RECORD_LENGTH;
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158 | //file.Seek(file.Length() - 3,SeekOrigin.Begin);
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159 | file.Seek(-3, SeekOrigin.End);
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160 | for (i = 0; i < STRUCTURE_INFO_MAX_SIZE; i++) {
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161 | file.Read(delim, 0, 3);
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162 | if (delim[0] == 255 && delim[1] == 255 && delim[2] == 255) {
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163 | databaseType = Convert.ToByte(file.ReadByte());
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164 | if (databaseType >= 106) {
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165 | // Backward compatibility with databases from April 2003 and earlier
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166 | databaseType -= 105;
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167 | }
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168 | // Determine the database type.
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169 | if (databaseType == DatabaseInfo.REGION_EDITION_REV0) {
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170 | databaseSegments = new int[1];
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171 | databaseSegments[0] = STATE_BEGIN_REV0;
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172 | recordLength = STANDARD_RECORD_LENGTH;
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173 | } else if (databaseType == DatabaseInfo.REGION_EDITION_REV1) {
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174 | databaseSegments = new int[1];
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175 | databaseSegments[0] = STATE_BEGIN_REV1;
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176 | recordLength = STANDARD_RECORD_LENGTH;
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177 | } else if (databaseType == DatabaseInfo.CITY_EDITION_REV0 ||
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178 | databaseType == DatabaseInfo.CITY_EDITION_REV1 ||
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179 | databaseType == DatabaseInfo.ORG_EDITION ||
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180 | databaseType == DatabaseInfo.ISP_EDITION ||
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181 | databaseType == DatabaseInfo.ASNUM_EDITION) {
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182 | databaseSegments = new int[1];
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183 | databaseSegments[0] = 0;
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184 | if (databaseType == DatabaseInfo.CITY_EDITION_REV0 ||
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185 | databaseType == DatabaseInfo.CITY_EDITION_REV1) {
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186 | recordLength = STANDARD_RECORD_LENGTH;
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187 | } else {
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188 | recordLength = ORG_RECORD_LENGTH;
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189 | }
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190 | file.Read(buf, 0, SEGMENT_RECORD_LENGTH);
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191 | for (j = 0; j < SEGMENT_RECORD_LENGTH; j++) {
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192 | databaseSegments[0] += (unsignedByteToInt(buf[j]) << (j * 8));
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193 | }
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194 | }
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195 | break;
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196 | } else {
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197 | //file.Seek(file.getFilePointer() - 4);
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198 | file.Seek(-4, SeekOrigin.Current);
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199 | //file.Seek(file.position-4,SeekOrigin.Begin);
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200 | }
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201 | }
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202 | if ((databaseType == DatabaseInfo.COUNTRY_EDITION) |
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203 | (databaseType == DatabaseInfo.PROXY_EDITION) |
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204 | (databaseType == DatabaseInfo.NETSPEED_EDITION)) {
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205 | databaseSegments = new int[1];
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206 | databaseSegments[0] = COUNTRY_BEGIN;
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207 | recordLength = STANDARD_RECORD_LENGTH;
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208 | }
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209 | if ((dboptions & GEOIP_MEMORY_CACHE) == 1) {
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210 | int l = (int)file.Length;
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211 | dbbuffer = new byte[l];
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212 | file.Seek(0, SeekOrigin.Begin);
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213 | file.Read(dbbuffer, 0, l);
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214 | }
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215 | }
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216 | public void close() {
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217 | try {
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218 | file.Close();
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219 | file = null;
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220 | }
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221 | catch (Exception) { }
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222 | }
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223 | public Country getCountry(IPAddress ipAddress) {
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224 | return getCountry(bytestoLong(ipAddress.GetAddressBytes()));
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225 | }
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226 | public Country getCountry(String ipAddress) {
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227 | IPAddress addr;
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228 | try {
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229 | addr = IPAddress.Parse(ipAddress);
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230 | }
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231 | //catch (UnknownHostException e) {
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232 | catch (Exception e) {
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233 | Console.Write(e.Message);
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234 | return UNKNOWN_COUNTRY;
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235 | }
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236 | // return getCountry(bytestoLong(addr.GetAddressBytes()));
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237 | return getCountry(bytestoLong(addr.GetAddressBytes()));
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238 | }
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239 | public Country getCountry(long ipAddress) {
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240 | if (file == null) {
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241 | //throw new IllegalStateException("Database has been closed.");
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242 | throw new Exception("Database has been closed.");
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243 | }
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244 | if ((databaseType == DatabaseInfo.CITY_EDITION_REV1) |
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245 | (databaseType == DatabaseInfo.CITY_EDITION_REV0)) {
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246 | Location l = getLocation(ipAddress);
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247 | if (l == null) {
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248 | return UNKNOWN_COUNTRY;
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249 | } else {
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250 | return new Country(l.countryCode, l.countryName);
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251 | }
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252 | } else {
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253 | int ret = SeekCountry(ipAddress) - COUNTRY_BEGIN;
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254 | if (ret == 0) {
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255 | return UNKNOWN_COUNTRY;
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256 | } else {
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257 | return new Country(countryCode[ret], countryName[ret]);
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258 | }
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259 | }
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260 | }
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261 |
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262 | public int getID(String ipAddress) {
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263 | IPAddress addr;
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264 | try {
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265 | addr = IPAddress.Parse(ipAddress);
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266 | }
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267 | catch (Exception e) {
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268 | Console.Write(e.Message);
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269 | return 0;
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270 | }
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271 | return getID(bytestoLong(addr.GetAddressBytes()));
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272 | }
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273 |
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274 | public int getID(IPAddress ipAddress) {
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275 |
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276 | return getID(bytestoLong(ipAddress.GetAddressBytes()));
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277 | }
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278 |
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279 | public int getID(long ipAddress) {
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280 | if (file == null) {
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281 | throw new Exception("Database has been closed.");
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282 | }
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283 | int ret = SeekCountry(ipAddress) - databaseSegments[0];
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284 | return ret;
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285 | }
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286 | public DatabaseInfo getDatabaseInfo() {
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287 | if (databaseInfo != null) {
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288 | return databaseInfo;
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289 | }
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290 | try {
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291 | // Synchronize since we're accessing the database file.
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292 | lock (this) {
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293 | bool hasStructureInfo = false;
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294 | byte[] delim = new byte[3];
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295 | // Advance to part of file where database info is stored.
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296 | file.Seek(-3, SeekOrigin.End);
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297 | for (int i = 0; i < STRUCTURE_INFO_MAX_SIZE; i++) {
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298 | file.Read(delim, 0, 3);
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299 | if (delim[0] == 255 && delim[1] == 255 && delim[2] == 255) {
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300 | hasStructureInfo = true;
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301 | break;
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302 | }
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303 | }
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304 | if (hasStructureInfo) {
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305 | file.Seek(-3, SeekOrigin.Current);
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306 | } else {
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307 | // No structure info, must be pre Sep 2002 database, go back to end.
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308 | file.Seek(-3, SeekOrigin.End);
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309 | }
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310 | // Find the database info string.
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311 | for (int i = 0; i < DATABASE_INFO_MAX_SIZE; i++) {
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312 | file.Read(delim, 0, 3);
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313 | if (delim[0] == 0 && delim[1] == 0 && delim[2] == 0) {
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314 | byte[] dbInfo = new byte[i];
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315 | char[] dbInfo2 = new char[i];
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316 | file.Read(dbInfo, 0, i);
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317 | for (int a0 = 0; a0 < i; a0++) {
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318 | dbInfo2[a0] = Convert.ToChar(dbInfo[a0]);
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319 | }
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320 | // Create the database info object using the string.
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321 | this.databaseInfo = new DatabaseInfo(new String(dbInfo2));
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322 | return databaseInfo;
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323 | }
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324 | file.Seek(-4, SeekOrigin.Current);
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325 | }
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326 | }
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327 | }
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328 | catch (Exception e) {
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329 | Console.Write(e.Message);
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330 | //e.printStackTrace();
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331 | }
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332 | return new DatabaseInfo("");
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333 | }
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334 | public Region getRegion(IPAddress ipAddress) {
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335 | return getRegion(bytestoLong(ipAddress.GetAddressBytes()));
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336 | }
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337 | public Region getRegion(String str) {
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338 | IPAddress addr;
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339 | try {
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340 | addr = IPAddress.Parse(str);
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341 | }
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342 | catch (Exception e) {
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343 | Console.Write(e.Message);
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344 | return null;
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345 | }
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346 |
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347 | return getRegion(bytestoLong(addr.GetAddressBytes()));
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348 | }
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349 |
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350 | [MethodImpl(MethodImplOptions.Synchronized)]
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351 | public Region getRegion(long ipnum) {
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352 | Region record = new Region();
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353 | int seek_region = 0;
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354 | if (databaseType == DatabaseInfo.REGION_EDITION_REV0) {
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355 | seek_region = SeekCountry(ipnum) - STATE_BEGIN_REV0;
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356 | char[] ch = new char[2];
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357 | if (seek_region >= 1000) {
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358 | record.countryCode = "US";
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359 | record.countryName = "United States";
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360 | ch[0] = (char)(((seek_region - 1000) / 26) + 65);
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361 | ch[1] = (char)(((seek_region - 1000) % 26) + 65);
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362 | record.region = new String(ch);
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363 | } else {
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364 | record.countryCode = countryCode[seek_region];
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365 | record.countryName = countryName[seek_region];
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366 | record.region = "";
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367 | }
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368 | } else if (databaseType == DatabaseInfo.REGION_EDITION_REV1) {
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369 | seek_region = SeekCountry(ipnum) - STATE_BEGIN_REV1;
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370 | char[] ch = new char[2];
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371 | if (seek_region < US_OFFSET) {
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372 | record.countryCode = "";
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373 | record.countryName = "";
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374 | record.region = "";
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375 | } else if (seek_region < CANADA_OFFSET) {
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376 | record.countryCode = "US";
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377 | record.countryName = "United States";
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378 | ch[0] = (char)(((seek_region - US_OFFSET) / 26) + 65);
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379 | ch[1] = (char)(((seek_region - US_OFFSET) % 26) + 65);
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380 | record.region = new String(ch);
|
---|
381 | } else if (seek_region < WORLD_OFFSET) {
|
---|
382 | record.countryCode = "CA";
|
---|
383 | record.countryName = "Canada";
|
---|
384 | ch[0] = (char)(((seek_region - CANADA_OFFSET) / 26) + 65);
|
---|
385 | ch[1] = (char)(((seek_region - CANADA_OFFSET) % 26) + 65);
|
---|
386 | record.region = new String(ch);
|
---|
387 | } else {
|
---|
388 | record.countryCode = countryCode[(seek_region - WORLD_OFFSET) / FIPS_RANGE];
|
---|
389 | record.countryName = countryName[(seek_region - WORLD_OFFSET) / FIPS_RANGE];
|
---|
390 | record.region = "";
|
---|
391 | }
|
---|
392 | }
|
---|
393 | return record;
|
---|
394 | }
|
---|
395 | public Location getLocation(IPAddress addr) {
|
---|
396 | return getLocation(bytestoLong(addr.GetAddressBytes()));
|
---|
397 | }
|
---|
398 | public Location getLocation(String str) {
|
---|
399 | IPAddress addr;
|
---|
400 | try {
|
---|
401 | addr = IPAddress.Parse(str);
|
---|
402 | }
|
---|
403 | catch (Exception e) {
|
---|
404 | Console.Write(e.Message);
|
---|
405 | return null;
|
---|
406 | }
|
---|
407 |
|
---|
408 | return getLocation(bytestoLong(addr.GetAddressBytes()));
|
---|
409 | }
|
---|
410 |
|
---|
411 | [MethodImpl(MethodImplOptions.Synchronized)]
|
---|
412 | public Location getLocation(long ipnum) {
|
---|
413 | int record_pointer;
|
---|
414 | byte[] record_buf = new byte[FULL_RECORD_LENGTH];
|
---|
415 | char[] record_buf2 = new char[FULL_RECORD_LENGTH];
|
---|
416 | int record_buf_offset = 0;
|
---|
417 | Location record = new Location();
|
---|
418 | int str_length = 0;
|
---|
419 | int j, Seek_country;
|
---|
420 | double latitude = 0, longitude = 0;
|
---|
421 |
|
---|
422 | try {
|
---|
423 | Seek_country = SeekCountry(ipnum);
|
---|
424 | if (Seek_country == databaseSegments[0]) {
|
---|
425 | return null;
|
---|
426 | }
|
---|
427 | record_pointer = Seek_country + ((2 * recordLength - 1) * databaseSegments[0]);
|
---|
428 | if ((dboptions & GEOIP_MEMORY_CACHE) == 1) {
|
---|
429 | Array.Copy(dbbuffer, record_pointer, record_buf, 0, Math.Min(dbbuffer.Length - record_pointer, FULL_RECORD_LENGTH));
|
---|
430 | } else {
|
---|
431 | file.Seek(record_pointer, SeekOrigin.Begin);
|
---|
432 | file.Read(record_buf, 0, FULL_RECORD_LENGTH);
|
---|
433 | }
|
---|
434 | for (int a0 = 0; a0 < FULL_RECORD_LENGTH; a0++) {
|
---|
435 | record_buf2[a0] = Convert.ToChar(record_buf[a0]);
|
---|
436 | }
|
---|
437 | // get country
|
---|
438 | record.countryCode = countryCode[unsignedByteToInt(record_buf[0])];
|
---|
439 | record.countryName = countryName[unsignedByteToInt(record_buf[0])];
|
---|
440 | record_buf_offset++;
|
---|
441 |
|
---|
442 | // get region
|
---|
443 | while (record_buf[record_buf_offset + str_length] != '\0')
|
---|
444 | str_length++;
|
---|
445 | if (str_length > 0) {
|
---|
446 | record.region = new String(record_buf2, record_buf_offset, str_length);
|
---|
447 | }
|
---|
448 | record_buf_offset += str_length + 1;
|
---|
449 | str_length = 0;
|
---|
450 |
|
---|
451 | // get region_name
|
---|
452 | record.regionName = RegionName.getRegionName(record.countryCode, record.region);
|
---|
453 |
|
---|
454 | // get city
|
---|
455 | while (record_buf[record_buf_offset + str_length] != '\0')
|
---|
456 | str_length++;
|
---|
457 | if (str_length > 0) {
|
---|
458 | record.city = new String(record_buf2, record_buf_offset, str_length);
|
---|
459 | }
|
---|
460 | record_buf_offset += (str_length + 1);
|
---|
461 | str_length = 0;
|
---|
462 |
|
---|
463 | // get postal code
|
---|
464 | while (record_buf[record_buf_offset + str_length] != '\0')
|
---|
465 | str_length++;
|
---|
466 | if (str_length > 0) {
|
---|
467 | record.postalCode = new String(record_buf2, record_buf_offset, str_length);
|
---|
468 | }
|
---|
469 | record_buf_offset += (str_length + 1);
|
---|
470 |
|
---|
471 | // get latitude
|
---|
472 | for (j = 0; j < 3; j++)
|
---|
473 | latitude += (unsignedByteToInt(record_buf[record_buf_offset + j]) << (j * 8));
|
---|
474 | record.latitude = (float)latitude / 10000 - 180;
|
---|
475 | record_buf_offset += 3;
|
---|
476 |
|
---|
477 | // get longitude
|
---|
478 | for (j = 0; j < 3; j++)
|
---|
479 | longitude += (unsignedByteToInt(record_buf[record_buf_offset + j]) << (j * 8));
|
---|
480 | record.longitude = (float)longitude / 10000 - 180;
|
---|
481 |
|
---|
482 | record.metro_code = record.dma_code = 0;
|
---|
483 | record.area_code = 0;
|
---|
484 | if (databaseType == DatabaseInfo.CITY_EDITION_REV1) {
|
---|
485 | // get metro_code
|
---|
486 | int metroarea_combo = 0;
|
---|
487 | if (record.countryCode == "US") {
|
---|
488 | record_buf_offset += 3;
|
---|
489 | for (j = 0; j < 3; j++)
|
---|
490 | metroarea_combo += (unsignedByteToInt(record_buf[record_buf_offset + j]) << (j * 8));
|
---|
491 | record.metro_code = record.dma_code = metroarea_combo / 1000;
|
---|
492 | record.area_code = metroarea_combo % 1000;
|
---|
493 | }
|
---|
494 | }
|
---|
495 | }
|
---|
496 | catch (IOException) {
|
---|
497 | Console.Write("IO Exception while seting up segments");
|
---|
498 | }
|
---|
499 | return record;
|
---|
500 | }
|
---|
501 | public String getOrg(IPAddress addr) {
|
---|
502 | return getOrg(bytestoLong(addr.GetAddressBytes()));
|
---|
503 | }
|
---|
504 | public String getOrg(String str) {
|
---|
505 | IPAddress addr;
|
---|
506 | try {
|
---|
507 | addr = IPAddress.Parse(str);
|
---|
508 | }
|
---|
509 | //catch (UnknownHostException e) {
|
---|
510 | catch (Exception e) {
|
---|
511 | Console.Write(e.Message);
|
---|
512 | return null;
|
---|
513 | }
|
---|
514 | return getOrg(bytestoLong(addr.GetAddressBytes()));
|
---|
515 | }
|
---|
516 |
|
---|
517 | [MethodImpl(MethodImplOptions.Synchronized)]
|
---|
518 | public String getOrg(long ipnum) {
|
---|
519 | int Seek_org;
|
---|
520 | int record_pointer;
|
---|
521 | int str_length = 0;
|
---|
522 | byte[] buf = new byte[MAX_ORG_RECORD_LENGTH];
|
---|
523 | char[] buf2 = new char[MAX_ORG_RECORD_LENGTH];
|
---|
524 | String org_buf;
|
---|
525 |
|
---|
526 | try {
|
---|
527 | Seek_org = SeekCountry(ipnum);
|
---|
528 | if (Seek_org == databaseSegments[0]) {
|
---|
529 | return null;
|
---|
530 | }
|
---|
531 |
|
---|
532 | record_pointer = Seek_org + (2 * recordLength - 1) * databaseSegments[0];
|
---|
533 | if ((dboptions & GEOIP_MEMORY_CACHE) == 1) {
|
---|
534 | Array.Copy(dbbuffer, record_pointer, buf, 0, Math.Min(dbbuffer.Length - record_pointer, MAX_ORG_RECORD_LENGTH));
|
---|
535 | } else {
|
---|
536 | file.Seek(record_pointer, SeekOrigin.Begin);
|
---|
537 | file.Read(buf, 0, MAX_ORG_RECORD_LENGTH);
|
---|
538 | }
|
---|
539 | while (buf[str_length] != 0) {
|
---|
540 | buf2[str_length] = Convert.ToChar(buf[str_length]);
|
---|
541 | str_length++;
|
---|
542 | }
|
---|
543 | buf2[str_length] = '\0';
|
---|
544 | org_buf = new String(buf2, 0, str_length);
|
---|
545 | return org_buf;
|
---|
546 | }
|
---|
547 | catch (IOException) {
|
---|
548 | Console.Write("IO Exception");
|
---|
549 | return null;
|
---|
550 | }
|
---|
551 | }
|
---|
552 |
|
---|
553 | [MethodImpl(MethodImplOptions.Synchronized)]
|
---|
554 | private int SeekCountry(long ipAddress) {
|
---|
555 | byte[] buf = new byte[2 * MAX_RECORD_LENGTH];
|
---|
556 | int[] x = new int[2];
|
---|
557 | int offset = 0;
|
---|
558 | for (int depth = 31; depth >= 0; depth--) {
|
---|
559 | try {
|
---|
560 | if ((dboptions & GEOIP_MEMORY_CACHE) == 1) {
|
---|
561 | for (int i = 0; i < (2 * MAX_RECORD_LENGTH); i++) {
|
---|
562 | buf[i] = dbbuffer[i + (2 * recordLength * offset)];
|
---|
563 | }
|
---|
564 | } else {
|
---|
565 | file.Seek(2 * recordLength * offset, SeekOrigin.Begin);
|
---|
566 | file.Read(buf, 0, 2 * MAX_RECORD_LENGTH);
|
---|
567 | }
|
---|
568 | }
|
---|
569 | catch (IOException) {
|
---|
570 | Console.Write("IO Exception");
|
---|
571 | }
|
---|
572 | for (int i = 0; i < 2; i++) {
|
---|
573 | x[i] = 0;
|
---|
574 | for (int j = 0; j < recordLength; j++) {
|
---|
575 | int y = buf[(i * recordLength) + j];
|
---|
576 | if (y < 0) {
|
---|
577 | y += 256;
|
---|
578 | }
|
---|
579 | x[i] += (y << (j * 8));
|
---|
580 | }
|
---|
581 | }
|
---|
582 |
|
---|
583 | if ((ipAddress & (1 << depth)) > 0) {
|
---|
584 | if (x[1] >= databaseSegments[0]) {
|
---|
585 | return x[1];
|
---|
586 | }
|
---|
587 | offset = x[1];
|
---|
588 | } else {
|
---|
589 | if (x[0] >= databaseSegments[0]) {
|
---|
590 | return x[0];
|
---|
591 | }
|
---|
592 | offset = x[0];
|
---|
593 | }
|
---|
594 | }
|
---|
595 |
|
---|
596 | // shouldn't reach here
|
---|
597 | Console.Write("Error Seeking country while Seeking " + ipAddress);
|
---|
598 | return 0;
|
---|
599 |
|
---|
600 | }
|
---|
601 | private static long swapbytes(long ipAddress) {
|
---|
602 | return (((ipAddress >> 0) & 255) << 24) | (((ipAddress >> 8) & 255) << 16)
|
---|
603 | | (((ipAddress >> 16) & 255) << 8) | (((ipAddress >> 24) & 255) << 0);
|
---|
604 | }
|
---|
605 | private static long bytestoLong(byte[] address) {
|
---|
606 | long ipnum = 0;
|
---|
607 | for (int i = 0; i < 4; ++i) {
|
---|
608 | long y = address[i];
|
---|
609 | if (y < 0) {
|
---|
610 | y += 256;
|
---|
611 | }
|
---|
612 | ipnum += y << ((3 - i) * 8);
|
---|
613 | }
|
---|
614 | return ipnum;
|
---|
615 | }
|
---|
616 | private static int unsignedByteToInt(byte b) {
|
---|
617 | return (int)b & 0xFF;
|
---|
618 | }
|
---|
619 |
|
---|
620 | }
|
---|