1 | //////////////////////////////////////////////////////////// |
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2 | // Copyright (C) Roman Ryltsov, 2008-2012 |
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3 | // Created by Roman Ryltsov roman@alax.info |
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4 | // |
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5 | // $Id: Location.h 47 2012-02-11 13:53:43Z roman $ |
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6 | |
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7 | #pragma once |
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8 | |
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9 | #include <atlenc.h> |
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10 | #include "rosockets.h" |
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11 | #include "MaxMindGeoLite_i.h" |
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12 | |
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13 | //////////////////////////////////////////////////////////// |
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14 | // GeoLiteCity |
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15 | |
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16 | namespace GeoLiteCity |
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17 | { |
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18 | //////////////////////////////////////////////////////////// |
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19 | // CLocation |
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20 | |
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21 | class CLocation |
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22 | { |
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23 | public: |
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24 | INT m_nIdentifier; |
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25 | CStringA m_sCountryCode; |
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26 | CStringA m_sRegion; |
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27 | CStringA m_sCity; |
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28 | CStringA m_sPostalCode; |
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29 | DOUBLE m_fLatitude; |
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30 | DOUBLE m_fLongitude; |
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31 | CStringA m_sMetroCode; |
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32 | CStringA m_sAreaCode; |
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33 | |
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34 | public: |
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35 | // CLocation |
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36 | CLocation() throw() |
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37 | { |
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38 | } |
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39 | CLocation(LPCSTR pszString) |
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40 | { |
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41 | Initialize(pszString); |
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42 | } |
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43 | VOID Initialize(LPCSTR pszString) |
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44 | { |
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45 | CRoArrayT<CStringA> Array; |
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46 | __D(_StringHelper::GetCommaSeparatedItems(pszString, Array) >= 7, E_UNNAMED); |
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47 | __D(AtlStringToInteger(Array[0], m_nIdentifier), E_UNNAMED); |
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48 | m_sCountryCode = Array[1]; |
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49 | m_sRegion = Array[2]; |
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50 | m_sCity = Array[3]; |
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51 | m_sPostalCode = Array[4]; |
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52 | __D(AtlStringToDouble(Array[5], m_fLatitude), E_UNNAMED); |
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53 | __D(AtlStringToDouble(Array[6], m_fLongitude), E_UNNAMED); |
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54 | if(Array.GetCount() >= 8) |
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55 | m_sMetroCode = Array[7]; |
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56 | if(Array.GetCount() >= 9) |
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57 | m_sAreaCode = Array[8]; |
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58 | } |
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59 | }; |
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60 | |
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61 | //////////////////////////////////////////////////////////// |
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62 | // CLocationArray |
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63 | |
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64 | class CLocationArray : |
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65 | protected CRoArrayT<CLocation> |
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66 | { |
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67 | public: |
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68 | // CLocationArray |
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69 | CLocationArray() throw() |
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70 | { |
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71 | } |
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72 | CLocationArray(const CPath& sPath) |
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73 | { |
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74 | Initialize(sPath); |
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75 | } |
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76 | VOID Initialize(const CPath& sPath) |
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77 | { |
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78 | CAtlFile File; |
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79 | __C(File.Create(sPath, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING)); |
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80 | ULONGLONG nSize; |
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81 | __C(File.GetSize(nSize)); |
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82 | CHeapPtr<CHAR> pszData; |
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83 | __D(pszData.Allocate((SIZE_T) nSize + 1), E_OUTOFMEMORY); |
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84 | __C(File.Read(pszData, (DWORD) nSize)); |
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85 | pszData[nSize] = 0; |
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86 | LPCSTR pszDataPointer = pszData; |
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87 | pszDataPointer = strchr(pszDataPointer, '\n') + 1; // Copyright line |
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88 | pszDataPointer = strchr(pszDataPointer, '\n') + 1; // Header line |
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89 | for(; *pszDataPointer; ) |
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90 | { |
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91 | LPCSTR pszSeparator = strchr(pszDataPointer, '\n'); |
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92 | if(!pszSeparator) |
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93 | break; |
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94 | const SIZE_T nLength = pszSeparator - pszDataPointer; |
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95 | CTempBufferT<CHAR> pszLine(nLength + 1); |
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96 | strncpy_s(pszLine, nLength + 1, pszDataPointer, _TRUNCATE); |
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97 | const SIZE_T nIndex = Add(); |
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98 | CLocation& Location = GetAt(nIndex); |
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99 | Location.Initialize(pszLine); |
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100 | __D(Location.m_nIdentifier == nIndex + 1, E_UNNAMED); |
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101 | pszDataPointer = pszSeparator + 1; |
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102 | } |
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103 | } |
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104 | BOOL Lookup(INT nIdentifier, const CLocation** ppLocation = NULL) const throw() |
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105 | { |
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106 | if(nIdentifier < 1 || nIdentifier - 1 >= (INT) GetCount()) |
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107 | return FALSE; |
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108 | const CLocation& Location = GetAt(nIdentifier - 1); |
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109 | _A(Location.m_nIdentifier == nIdentifier); |
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110 | if(ppLocation) |
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111 | *ppLocation = &Location; |
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112 | return TRUE; |
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113 | } |
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114 | }; |
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115 | |
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116 | //////////////////////////////////////////////////////////// |
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117 | // CBlock |
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118 | |
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119 | class CBlock |
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120 | { |
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121 | public: |
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122 | ULONG m_nStartAddress; |
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123 | ULONG m_nEndAddress; |
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124 | INT m_nLocationIdentifier; |
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125 | |
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126 | public: |
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127 | // CBlock |
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128 | CBlock() throw() |
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129 | { |
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130 | } |
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131 | CBlock(LPCSTR pszString) |
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132 | { |
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133 | Initialize(pszString); |
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134 | } |
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135 | VOID Initialize(LPCSTR pszString) |
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136 | { |
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137 | CRoArrayT<CStringA> Array; |
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138 | __D(_StringHelper::GetCommaSeparatedItems(pszString, Array) >= 3, E_UNNAMED); |
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139 | LONGLONG nStartAddress, nEndAddress; |
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140 | __D(AtlStringToInteger(Array[0], nStartAddress), E_UNNAMED); |
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141 | __D(AtlStringToInteger(Array[1], nEndAddress), E_UNNAMED); |
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142 | m_nStartAddress = (ULONG) nStartAddress; |
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143 | m_nEndAddress = (ULONG) nEndAddress; |
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144 | __D(AtlStringToInteger(Array[2], m_nLocationIdentifier), E_UNNAMED); |
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145 | } |
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146 | BOOL Contains(ULONG nAddress) const throw() |
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147 | { |
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148 | return nAddress >= m_nStartAddress && nAddress <= m_nEndAddress; |
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149 | } |
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150 | }; |
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151 | |
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152 | //////////////////////////////////////////////////////////// |
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153 | // CBlockArray |
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154 | |
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155 | class CBlockArray : |
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156 | protected CRoArrayT<CBlock> |
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157 | { |
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158 | public: |
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159 | // CBlockArray |
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160 | CBlockArray() throw() |
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161 | { |
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162 | } |
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163 | CBlockArray(const CPath& sPath) |
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164 | { |
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165 | Initialize(sPath); |
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166 | } |
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167 | VOID Initialize(const CPath& sPath) |
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168 | { |
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169 | CAtlFile File; |
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170 | __C(File.Create(sPath, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING)); |
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171 | ULONGLONG nSize; |
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172 | __C(File.GetSize(nSize)); |
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173 | CHeapPtr<CHAR> pszData; |
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174 | __D(pszData.Allocate((SIZE_T) nSize + 1), E_OUTOFMEMORY); |
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175 | __C(File.Read(pszData, (DWORD) nSize)); |
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176 | pszData[nSize] = 0; |
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177 | LPCSTR pszDataPointer = pszData; |
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178 | pszDataPointer = strchr(pszDataPointer, '\n') + 1; // Copyright line |
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179 | pszDataPointer = strchr(pszDataPointer, '\n') + 1; // Header line |
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180 | ULONG nPreviousEndAddress = 0; |
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181 | for(; *pszDataPointer; ) |
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182 | { |
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183 | LPCSTR pszSeparator = strchr(pszDataPointer, '\n'); |
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184 | if(!pszSeparator) |
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185 | break; |
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186 | const SIZE_T nLength = pszSeparator - pszDataPointer; |
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187 | CTempBufferT<CHAR> pszLine(nLength + 1); |
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188 | strncpy_s(pszLine, nLength + 1, pszDataPointer, _TRUNCATE); |
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189 | const SIZE_T nIndex = Add(); |
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190 | CBlock& Block = GetAt(nIndex); |
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191 | Block.Initialize(pszLine); |
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192 | __D(Block.m_nStartAddress && Block.m_nStartAddress > nPreviousEndAddress, E_UNNAMED); |
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193 | nPreviousEndAddress = Block.m_nEndAddress; |
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194 | pszDataPointer = pszSeparator + 1; |
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195 | } |
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196 | } |
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197 | BOOL Lookup(ULONG nAddress, const CBlock** ppBlock = NULL) const throw() |
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198 | { |
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199 | SIZE_T nLeftIndex = 0, nRightIndex = GetCount(); |
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200 | if(!nRightIndex) |
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201 | return FALSE; |
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202 | if(nAddress < GetAt(0).m_nStartAddress || nAddress > GetAt(GetCount() - 1).m_nEndAddress) |
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203 | return FALSE; |
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204 | for(; nLeftIndex + 1 < nRightIndex; ) |
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205 | { |
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206 | SIZE_T nIndex = (nLeftIndex + nRightIndex) / 2; |
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207 | const CBlock& Block = GetAt(nIndex); |
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208 | if(nAddress < Block.m_nStartAddress) |
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209 | { |
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210 | nRightIndex = nIndex; |
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211 | } else |
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212 | if(nAddress > Block.m_nEndAddress) |
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213 | { |
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214 | nLeftIndex = nIndex + 1; |
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215 | } else |
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216 | { |
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217 | nLeftIndex = nIndex; |
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218 | break; |
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219 | } |
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220 | } |
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221 | const CBlock& Block = GetAt(nLeftIndex); |
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222 | if(!Block.Contains(nAddress)) |
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223 | return FALSE; |
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224 | if(ppBlock) |
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225 | *ppBlock = &Block; |
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226 | return TRUE; |
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227 | } |
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228 | }; |
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229 | } |
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230 | |
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231 | //////////////////////////////////////////////////////////// |
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232 | // CLocations |
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233 | |
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234 | class ATL_NO_VTABLE CLocations : |
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235 | public CComObjectRootEx<CComMultiThreadModelNoCS>, |
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236 | public CComCoClass<CLocations, &__uuidof(Locations)>, |
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237 | public CBasePersistT<CLocations>, |
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238 | //public IRoPersistStreamInitT<CLocations>, |
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239 | //public IRoPersistStorageT<CLocations>, |
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240 | //public IRoPersistPropertyBagT<CLocations>, |
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241 | //public IRoSpecifyPropertyPagesT<CLocations>, |
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242 | public IDispatchImpl<ILocations> |
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243 | { |
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244 | public: |
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245 | enum { IDR = IDR_LOCATIONS }; |
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246 | |
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247 | //DECLARE_REGISTRY_RESOURCEID(IDR) |
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248 | |
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249 | DECLARE_PROTECT_FINAL_CONSTRUCT() |
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250 | |
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251 | BEGIN_COM_MAP(CLocations) |
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252 | //COM_INTERFACE_ENTRY_IID(__uuidof(IPersist), IPersistStreamInit) |
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253 | //COM_INTERFACE_ENTRY_IID(__uuidof(IPersistStream), IPersistStreamInit) |
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254 | //COM_INTERFACE_ENTRY(IPersistStreamInit) |
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255 | //COM_INTERFACE_ENTRY(IPersistStorage) |
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256 | //COM_INTERFACE_ENTRY(IPersistPropertyBag) |
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257 | //COM_INTERFACE_ENTRY(ISpecifyPropertyPages) |
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258 | COM_INTERFACE_ENTRY(ILocations) |
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259 | COM_INTERFACE_ENTRY(IDispatch) |
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260 | END_COM_MAP() |
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261 | |
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262 | BEGIN_PROP_MAP(CLocations) |
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263 | END_PROP_MAP() |
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264 | |
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265 | public: |
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266 | |
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267 | //////////////////////////////////////////////////////// |
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268 | // CLocation |
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269 | |
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270 | class ATL_NO_VTABLE CLocation : |
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271 | public CComObjectRootEx<CComMultiThreadModelNoCS>, |
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272 | public CComCoClass<CLocation, &__uuidof(Location)>, |
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273 | public IDispatchImpl<ILocation> |
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274 | { |
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275 | public: |
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276 | |
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277 | DECLARE_NO_REGISTRY() |
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278 | |
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279 | //DECLARE_PROTECT_FINAL_CONSTRUCT() |
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280 | |
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281 | BEGIN_COM_MAP(CLocation) |
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282 | COM_INTERFACE_ENTRY(ILocation) |
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283 | COM_INTERFACE_ENTRY(IDispatch) |
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284 | END_COM_MAP() |
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285 | |
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286 | private: |
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287 | GeoLiteCity::CLocation m_Location; |
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288 | |
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289 | public: |
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290 | // CLocation |
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291 | CLocation() throw() |
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292 | { |
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293 | _Z4(atlTraceRefcount, 4, _T("this 0x%p\n"), this); |
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294 | } |
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295 | ~CLocation() throw() |
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296 | { |
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297 | _Z4(atlTraceRefcount, 4, _T("this 0x%p\n"), this); |
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298 | } |
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299 | VOID Initialize(const GeoLiteCity::CLocation& Location) |
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300 | { |
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301 | m_Location = Location; |
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302 | } |
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303 | |
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304 | // ILocation |
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305 | STDMETHOD(get_Country)(BSTR* psCountry) throw() |
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306 | { |
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307 | _Z4(atlTraceCOM, 4, _T("...\n")); |
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308 | _ATLTRY |
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309 | { |
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310 | __D(psCountry, E_POINTER); |
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311 | ObjectLock Lock(this); |
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312 | *psCountry = CComBSTR(m_Location.m_sCountryCode).Detach(); |
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313 | } |
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314 | _ATLCATCH(Exception) |
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315 | { |
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316 | _C(Exception); |
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317 | } |
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318 | return S_OK; |
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319 | } |
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320 | STDMETHOD(get_Region)(BSTR* psRegion) throw() |
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321 | { |
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322 | _Z4(atlTraceCOM, 4, _T("...\n")); |
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323 | _ATLTRY |
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324 | { |
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325 | __D(psRegion, E_POINTER); |
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326 | ObjectLock Lock(this); |
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327 | *psRegion = CComBSTR(m_Location.m_sRegion).Detach(); |
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328 | } |
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329 | _ATLCATCH(Exception) |
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330 | { |
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331 | _C(Exception); |
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332 | } |
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333 | return S_OK; |
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334 | } |
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335 | STDMETHOD(get_City)(BSTR* psCity) throw() |
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336 | { |
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337 | _Z4(atlTraceCOM, 4, _T("...\n")); |
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338 | _ATLTRY |
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339 | { |
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340 | __D(psCity, E_POINTER); |
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341 | ObjectLock Lock(this); |
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342 | *psCity = CComBSTR(m_Location.m_sCity).Detach(); |
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343 | } |
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344 | _ATLCATCH(Exception) |
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345 | { |
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346 | _C(Exception); |
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347 | } |
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348 | return S_OK; |
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349 | } |
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350 | STDMETHOD(get_PostalCode)(BSTR* psPostalCode) throw() |
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351 | { |
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352 | _Z4(atlTraceCOM, 4, _T("...\n")); |
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353 | _ATLTRY |
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354 | { |
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355 | __D(psPostalCode, E_POINTER); |
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356 | ObjectLock Lock(this); |
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357 | *psPostalCode = CComBSTR(m_Location.m_sPostalCode).Detach(); |
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358 | } |
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359 | _ATLCATCH(Exception) |
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360 | { |
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361 | _C(Exception); |
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362 | } |
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363 | return S_OK; |
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364 | } |
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365 | STDMETHOD(get_Latitude)(DOUBLE* pfLatitude) throw() |
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366 | { |
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367 | _Z4(atlTraceCOM, 4, _T("...\n")); |
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368 | _ATLTRY |
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369 | { |
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370 | __D(pfLatitude, E_POINTER); |
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371 | ObjectLock Lock(this); |
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372 | *pfLatitude = m_Location.m_fLatitude; |
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373 | } |
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374 | _ATLCATCH(Exception) |
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375 | { |
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376 | _C(Exception); |
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377 | } |
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378 | return S_OK; |
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379 | } |
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380 | STDMETHOD(get_Longitude)(DOUBLE* pfLongitude) throw() |
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381 | { |
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382 | _Z4(atlTraceCOM, 4, _T("...\n")); |
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383 | _ATLTRY |
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384 | { |
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385 | __D(pfLongitude, E_POINTER); |
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386 | ObjectLock Lock(this); |
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387 | *pfLongitude = m_Location.m_fLongitude; |
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388 | } |
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389 | _ATLCATCH(Exception) |
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390 | { |
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391 | _C(Exception); |
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392 | } |
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393 | return S_OK; |
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394 | } |
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395 | STDMETHOD(get_MetroCode)(BSTR* psMetroCode) throw() |
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396 | { |
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397 | _Z4(atlTraceCOM, 4, _T("...\n")); |
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398 | _ATLTRY |
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399 | { |
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400 | __D(psMetroCode, E_POINTER); |
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401 | ObjectLock Lock(this); |
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402 | *psMetroCode = CComBSTR(m_Location.m_sMetroCode).Detach(); |
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403 | } |
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404 | _ATLCATCH(Exception) |
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405 | { |
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406 | _C(Exception); |
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407 | } |
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408 | return S_OK; |
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409 | } |
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410 | STDMETHOD(get_AreaCode)(BSTR* psAreaCode) throw() |
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411 | { |
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412 | _Z4(atlTraceCOM, 4, _T("...\n")); |
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413 | _ATLTRY |
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414 | { |
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415 | __D(psAreaCode, E_POINTER); |
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416 | ObjectLock Lock(this); |
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417 | *psAreaCode = CComBSTR(m_Location.m_sAreaCode).Detach(); |
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418 | } |
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419 | _ATLCATCH(Exception) |
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420 | { |
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421 | _C(Exception); |
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422 | } |
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423 | return S_OK; |
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424 | } |
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425 | }; |
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426 | |
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427 | private: |
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428 | CWindowsSockets2 m_Sockets; |
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429 | CRequiresSave m_bRequiresSave; |
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430 | mutable CRoCriticalSection m_DataCriticalSection; |
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431 | GeoLiteCity::CLocationArray m_LocationArray; |
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432 | GeoLiteCity::CBlockArray m_BlockArray; |
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433 | |
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434 | public: |
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435 | // CLocations |
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436 | static CString GetObjectFriendlyName() |
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437 | { |
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438 | return _StringHelper::GetLine(IDR, 2); |
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439 | } |
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440 | static HRESULT WINAPI UpdateRegistry(BOOL bRegister) throw() |
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441 | { |
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442 | _Z2(atlTraceRegistrar, 2, _T("bRegister %d\n"), bRegister); |
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443 | _ATLTRY |
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444 | { |
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445 | UpdateRegistryFromResource<CLocations>(bRegister); |
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446 | } |
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447 | _ATLCATCH(Exception) |
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448 | { |
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449 | _C(Exception); |
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450 | } |
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451 | return S_OK; |
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452 | } |
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453 | CLocations() throw() : |
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454 | CBasePersistT<CLocations>(m_DataCriticalSection), |
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455 | m_bRequiresSave(m_DataCriticalSection) |
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456 | { |
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457 | _Z4(atlTraceRefcount, 4, _T("this 0x%p\n"), this); |
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458 | } |
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459 | ~CLocations() throw() |
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460 | { |
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461 | _Z4(atlTraceRefcount, 4, _T("this 0x%p\n"), this); |
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462 | } |
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463 | HRESULT FinalConstruct() throw() |
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464 | { |
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465 | _ATLTRY |
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466 | { |
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467 | __C(m_Sockets.GetStartupResult()); |
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468 | Initialize(); |
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469 | } |
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470 | _ATLCATCH(Exception) |
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471 | { |
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472 | _C(Exception); |
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473 | } |
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474 | return S_OK; |
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475 | } |
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476 | VOID FinalRelease() throw() |
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477 | { |
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478 | } |
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479 | VOID Initialize() |
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480 | { |
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481 | TCHAR pszDirectory[MAX_PATH] = { 0 }; |
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482 | _W(GetModuleFileName(_AtlBaseModule.GetModuleInstance(), pszDirectory, DIM(pszDirectory))); |
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483 | _W(RemoveFileSpec(pszDirectory)); |
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484 | CPath sLocationPath, sBlockPath; |
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485 | sLocationPath.Combine(pszDirectory, _T("GeoLiteCity-Location.csv")); |
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486 | sBlockPath.Combine(pszDirectory, _T("GeoLiteCity-Blocks.csv")); |
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487 | //CRoCriticalSectionLock DataLock(m_DataCriticalSection); |
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488 | m_LocationArray.Initialize(sLocationPath); |
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489 | m_BlockArray.Initialize(sBlockPath); |
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490 | } |
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491 | |
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492 | // ILocation |
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493 | STDMETHOD(get_Item)(VARIANT vIndex, ILocation** ppLocation) throw() |
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494 | { |
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495 | _Z4(atlTraceCOM, 4, _T("vIndex.vt 0x%x\n"), vIndex.vt); |
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496 | _ATLTRY |
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497 | { |
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498 | __D(ppLocation, E_POINTER); |
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499 | __D(vIndex.vt == VT_BSTR, E_INVALIDARG); |
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500 | ULONG nAddress; |
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501 | nAddress = ntohl(inet_addr(CW2A(vIndex.bstrVal))); |
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502 | if(nAddress == INADDR_NONE) |
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503 | { |
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504 | SOCKADDR_IN Address; |
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505 | __E(CSocket::AddressFromHost(CW2CT(vIndex.bstrVal), 0, Address)); |
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506 | nAddress = ntohl(Address.sin_addr.S_un.S_addr); |
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507 | } |
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508 | //ObjectLock Lock(this); |
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509 | //CRoCriticalSectionLock DataLock(m_DataCriticalSection); |
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510 | CObjectPtr<CLocation> pLocation; |
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511 | const GeoLiteCity::CBlock* pBlock; |
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512 | if(m_BlockArray.Lookup(nAddress, &pBlock)) |
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513 | { |
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514 | const GeoLiteCity::CLocation* pInternalLocation; |
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515 | if(m_LocationArray.Lookup(pBlock->m_nLocationIdentifier, &pInternalLocation)) |
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516 | pLocation.Construct()->Initialize(*pInternalLocation); |
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517 | else |
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518 | _A(FALSE); |
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519 | } |
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520 | *ppLocation = pLocation.Detach(); |
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521 | } |
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522 | _ATLCATCH(Exception) |
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523 | { |
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524 | _C(Exception); |
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525 | } |
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526 | return S_OK; |
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527 | } |
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528 | }; |
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529 | |
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530 | OBJECT_ENTRY_AUTO(__uuidof(Locations), CLocations) |
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