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1 /* |
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2 * Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the License "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include <fstream> |
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20 #include "utils.h" |
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21 #include "logger.h" |
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22 |
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23 #ifndef __LINUX__ |
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24 #include <windows.h> |
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25 #endif |
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26 |
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27 typedef unsigned char TUint8; |
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28 typedef unsigned int TUint; |
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29 |
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30 #ifdef __LINUX__ |
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31 void OpenUtf8FStreamForRead(std::fstream &aFStream, const char *aUtf8FileName) |
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32 { |
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33 aFStream.open(aUtf8FileName, std::ios_base::binary | std::ios_base::in); |
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34 } |
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35 |
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36 void OpenUtf8FStreamForWrite(std::fstream &aFStream, const char *aUtf8FileName) |
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37 { |
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38 aFStream.open(aUtf8FileName, std::ios_base::binary | std::ios_base::trunc | std::ios_base::out); |
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39 } |
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40 |
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41 #else |
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42 |
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43 WCHAR *WindowsUtf8ToUtf16(const char *aUtf8) |
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44 { |
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45 int utf8Len = strlen(aUtf8) + 1; // We want to copy the terminator to the new string |
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46 int utf16Space = MultiByteToWideChar(CP_UTF8, 0, aUtf8, utf8Len, 0, 0); |
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47 if(utf16Space <= 0) |
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48 { |
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49 dbg << Log::Indent() << "Failed to convert UTF-8 '" << aUtf8 << "' to UTF16" << Log::Endl(); |
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50 FatalError(); |
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51 return 0; |
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52 } |
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53 // prog << Log::Indent() << "utf16Space " << utf16Space << Log::Endl(); |
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54 WCHAR *utf16 = new WCHAR[utf16Space]; |
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55 (void) MultiByteToWideChar(CP_UTF8, 0, aUtf8, utf8Len, utf16, utf16Space); |
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56 #if 0 |
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57 prog << Log::Indent() << "Raw UTF16 name is (chars " << utf16Space << ")" << Log::Endl(); |
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58 for(int i=0; i<utf16Space*2; ++i) |
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59 { |
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60 prog << TUint(((TUint8 *)utf16)[i]) << Log::Endl(); |
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61 } |
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62 #endif |
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63 return utf16; |
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64 } |
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65 |
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66 CHAR *WindowsUtf16ToUtf8(const WCHAR *aUtf16) |
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67 { |
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68 int utf16Len = wcslen(aUtf16) + 1; // We want to copy the terminator to the new string |
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69 int utf8Space = WideCharToMultiByte(CP_UTF8, 0, aUtf16, utf16Len, 0, 0, 0, 0); |
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70 if(utf8Space <= 0) |
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71 { |
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72 dbg << Log::Indent() << "Failed to convert UTF16 string to UTF8" << Log::Endl(); |
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73 FatalError(); |
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74 return 0; |
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75 } |
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76 //prog << Log::Indent() << "utf8Space " << utf8Space << Log::Endl(); |
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77 CHAR *utf8 = new CHAR[utf8Space]; |
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78 (void) WideCharToMultiByte(CP_UTF8, 0, aUtf16, utf16Len, utf8, utf8Space, 0, 0); |
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79 |
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80 #if 0 |
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81 prog << Log::Indent() << "Raw UTF8 name is (chars " << utf8Space << ")" << Log::Endl(); |
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82 for(int i=0; i<utf8Space; ++i) |
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83 { |
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84 prog << TUint(((TUint8 *)utf8)[i]) << Log::Endl(); |
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85 } |
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86 #endif |
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87 return utf8; |
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88 } |
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89 |
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90 WCHAR *WindowsRetrieveDosName(const WCHAR *aLongName) |
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91 { |
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92 // Convert to a short DOS file name. File MUST already exist! |
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93 // len will be space required for string and terminator |
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94 DWORD len = GetShortPathNameW((WCHAR *)aLongName, 0, 0); |
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95 if( len <= 0 ) |
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96 { |
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97 prog << Log::Indent() << "Failed to find existing file and retrieve short name" << Log::Endl(); |
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98 return 0; |
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99 } |
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100 |
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101 //prog << Log::Indent() << "space required for short name is " << len << Log::Endl(); |
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102 WCHAR *shortName = new WCHAR[len]; |
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103 (void) GetShortPathNameW(aLongName, shortName, len); |
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104 return shortName; |
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105 } |
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106 |
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107 void OpenUtf8FStreamForRead(std::fstream &aFStream, const char *aUtf8FileName) |
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108 { |
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109 // Unfortunately the windows C++ STL library will not open files specified via a UTF-8 filename. |
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110 // The workaround is to convert the UTF-8 name to the short DOS compatible name and open that instead |
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111 |
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112 // First convert the UTF-8 name to UTF-16 for use with the windows APIs |
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113 WCHAR *utf16Name = WindowsUtf8ToUtf16(aUtf8FileName); |
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114 |
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115 // Obtain short DOS compatible name for file |
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116 WCHAR *utf16NameDos = WindowsRetrieveDosName(utf16Name); |
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117 if(utf16NameDos == 0) |
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118 { |
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119 aFStream.setstate(std::ios_base::badbit); |
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120 delete [] utf16Name; |
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121 return; |
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122 } |
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123 |
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124 char *utf8NameDos = WindowsUtf16ToUtf8(utf16NameDos); |
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125 |
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126 aFStream.open(utf8NameDos, std::ios_base::binary | std::ios_base::in); |
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127 |
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128 delete [] utf8NameDos; |
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129 delete [] utf16NameDos; |
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130 delete [] utf16Name; |
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131 return; |
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132 } |
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133 |
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134 void OpenUtf8FStreamForWrite(std::fstream &aFStream, const char *aUtf8FileName) |
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135 { |
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136 // Unfortunately the windows C++ STL library will not open files specified via a UTF-8 filename. |
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137 // The workaround is to make sure the file already exists and then convert the UTF-8 name to the short DOS compatible name |
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138 // and open that instead |
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139 |
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140 // First convert the UTF-8 name to UTF-16 for use with the windows APIs |
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141 WCHAR *utf16Name = WindowsUtf8ToUtf16(aUtf8FileName); |
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142 |
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143 // Make sure the file exists |
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144 HANDLE fh = CreateFileW((WCHAR *)utf16Name, GENERIC_WRITE, FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE, 0, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0 ); |
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145 if(fh == INVALID_HANDLE_VALUE) |
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146 { |
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147 dbg << Log::Indent() << "Failed to create file '" << aUtf8FileName << "'" << Log::Endl(); |
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148 aFStream.setstate(std::ios_base::badbit); |
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149 delete [] utf16Name; |
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150 return; |
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151 } |
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152 // Close handle |
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153 CloseHandle(fh); |
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154 |
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155 |
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156 // Obtain short DOS compatible name for file |
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157 WCHAR *utf16NameDos = WindowsRetrieveDosName(utf16Name); |
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158 if(utf16NameDos == 0) |
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159 { |
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160 aFStream.setstate(std::ios_base::badbit); |
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161 delete [] utf16Name; |
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162 return; |
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163 } |
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164 |
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165 char *utf8NameDos = WindowsUtf16ToUtf8(utf16NameDos); |
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166 |
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167 aFStream.open(utf8NameDos, std::ios_base::binary | std::ios_base::trunc | std::ios_base::out); |
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168 |
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169 delete [] utf8NameDos; |
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170 delete [] utf16NameDos; |
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171 delete [] utf16Name; |
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172 return; |
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173 } |
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174 #endif |
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175 |
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176 // End of file |