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annotate Core/Toolbox.cpp @ 177:81b6f3013738

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 09 Nov 2012 10:42:00 +0100
parents fe180eae201d
children 8e673a65564d
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012 Medical Physics Department, CHU of Liege,
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4 * Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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32
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33 #include "Toolbox.h"
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34
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35 #include "OrthancException.h"
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37 #include <string.h>
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38 #include <boost/filesystem.hpp>
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39 #include <boost/filesystem/fstream.hpp>
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40 #include <algorithm>
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41 #include <ctype.h>
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42
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43 #if defined(_WIN32)
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44 #include <windows.h>
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45 #endif
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46
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47 #if defined(__APPLE__) && defined(__MACH__)
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48 #include <mach-o/dyld.h> /* _NSGetExecutablePath */
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49 #include <limits.h> /* PATH_MAX */
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50 #endif
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51
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52 #if defined(__linux)
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53 #include <limits.h> /* PATH_MAX */
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54 #include <signal.h>
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55 #include <unistd.h>
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56 #endif
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57
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58 #if BOOST_HAS_LOCALE == 1
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59 #include <boost/locale.hpp>
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60 #else
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61 #include <iconv.h>
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62 #endif
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63
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64 #include "../Resources/md5/md5.h"
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65 #include "../Resources/base64/base64.h"
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66 #include "../Resources/sha1/sha1.h"
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68
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69 #if BOOST_HAS_LOCALE == 0
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70 namespace
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71 {
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72 class IconvRabi
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73 {
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74 private:
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75 iconv_t context_;
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76
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77 public:
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78 IconvRabi(const char* tocode, const char* fromcode)
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79 {
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80 context_ = iconv_open(tocode, fromcode);
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81 if (!context_)
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82 {
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83 throw Orthanc::OrthancException("Unknown code page");
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84 }
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85 }
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86
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87 ~IconvRabi()
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88 {
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89 iconv_close(context_);
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90 }
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91
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92 std::string Convert(const std::string& source)
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93 {
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94 if (source.size() == 0)
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95 {
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96 return "";
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97 }
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98
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99 std::string result;
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100 char* sourcePos = const_cast<char*>(&source[0]);
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101 size_t sourceLeft = source.size();
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102
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103 std::vector<char> storage(source.size() + 10);
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104
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105 while (sourceLeft > 0)
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106 {
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107 char* tmp = &storage[0];
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108 size_t outputLeft = storage.size();
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109 size_t err = iconv(context_, &sourcePos, &sourceLeft, &tmp, &outputLeft);
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110 if (err < 0)
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111 {
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112 throw Orthanc::OrthancException("Bad character in sequence");
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113 }
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114
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115 size_t count = storage.size() - outputLeft;
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116 result += std::string(&storage[0], count);
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117 }
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118
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119 return result;
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120 }
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121 };
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122 }
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123 #endif
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124
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125
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126 namespace Orthanc
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127 {
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128 static bool finish;
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129
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130 #if defined(_WIN32)
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131 static BOOL WINAPI ConsoleControlHandler(DWORD dwCtrlType)
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132 {
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133 // http://msdn.microsoft.com/en-us/library/ms683242(v=vs.85).aspx
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134 finish = true;
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135 return true;
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136 }
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137 #else
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138 static void SignalHandler(int)
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139 {
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140 finish = true;
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141 }
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142 #endif
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144 void Toolbox::Sleep(uint32_t seconds)
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145 {
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146 #if defined(_WIN32)
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147 ::Sleep(static_cast<DWORD>(seconds) * static_cast<DWORD>(1000));
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148 #elif defined(__linux)
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149 usleep(static_cast<uint64_t>(seconds) * static_cast<uint64_t>(1000000));
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150 #else
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151 #error Support your platform here
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152 #endif
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153 }
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154
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155 void Toolbox::USleep(uint64_t microSeconds)
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156 {
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157 #if defined(_WIN32)
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158 ::Sleep(static_cast<DWORD>(microSeconds / static_cast<uint64_t>(1000)));
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159 #elif defined(__linux)
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160 usleep(microSeconds);
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161 #else
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162 #error Support your platform here
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163 #endif
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164 }
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165
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166
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167 void Toolbox::ServerBarrier()
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168 {
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169 #if defined(_WIN32)
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170 SetConsoleCtrlHandler(ConsoleControlHandler, true);
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171 #else
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172 signal(SIGINT, SignalHandler);
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173 signal(SIGQUIT, SignalHandler);
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174 #endif
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175
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176 finish = false;
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177 while (!finish)
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178 {
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179 USleep(100000);
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180 }
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181
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182 #if defined(_WIN32)
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183 SetConsoleCtrlHandler(ConsoleControlHandler, false);
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184 #else
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185 signal(SIGINT, NULL);
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186 signal(SIGQUIT, NULL);
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187 #endif
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188 }
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189
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190
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191
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192 void Toolbox::ToUpperCase(std::string& s)
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193 {
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194 std::transform(s.begin(), s.end(), s.begin(), toupper);
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195 }
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196
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197
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198 void Toolbox::ToLowerCase(std::string& s)
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199 {
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200 std::transform(s.begin(), s.end(), s.begin(), tolower);
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201 }
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202
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203
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204
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205 void Toolbox::ReadFile(std::string& content,
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206 const std::string& path)
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207 {
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208 boost::filesystem::ifstream f;
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209 f.open(path, std::ifstream::in | std::ios::binary);
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210 if (!f.good())
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211 {
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212 throw OrthancException("Unable to open a file");
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213 }
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214
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215 // http://www.cplusplus.com/reference/iostream/istream/tellg/
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216 f.seekg(0, std::ios::end);
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217 std::streamsize size = f.tellg();
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218 f.seekg(0, std::ios::beg);
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219
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220 content.resize(size);
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221 if (size != 0)
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222 {
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223 f.read(reinterpret_cast<char*>(&content[0]), size);
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224 }
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225
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226 f.close();
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227 }
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228
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229
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230 void Toolbox::RemoveFile(const std::string& path)
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231 {
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232 if (boost::filesystem::exists(path))
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233 {
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234 if (boost::filesystem::is_regular_file(path))
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235 boost::filesystem::remove(path);
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236 else
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237 throw OrthancException("The path is not a regular file: " + path);
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238 }
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239 }
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240
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241
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242
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243 void Toolbox::SplitUriComponents(UriComponents& components,
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244 const std::string& uri)
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245 {
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246 static const char URI_SEPARATOR = '/';
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247
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248 components.clear();
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249
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250 if (uri.size() == 0 ||
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251 uri[0] != URI_SEPARATOR)
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252 {
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253 throw OrthancException(ErrorCode_UriSyntax);
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254 }
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255
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256 // Count the number of slashes in the URI to make an assumption
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257 // about the number of components in the URI
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258 unsigned int estimatedSize = 0;
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259 for (unsigned int i = 0; i < uri.size(); i++)
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260 {
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261 if (uri[i] == URI_SEPARATOR)
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262 estimatedSize++;
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263 }
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264
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265 components.reserve(estimatedSize - 1);
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266
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267 unsigned int start = 1;
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268 unsigned int end = 1;
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269 while (end < uri.size())
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270 {
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271 // This is the loop invariant
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272 assert(uri[start - 1] == '/' && (end >= start));
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273
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274 if (uri[end] == '/')
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275 {
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276 components.push_back(std::string(&uri[start], end - start));
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277 end++;
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278 start = end;
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279 }
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280 else
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281 {
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282 end++;
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283 }
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284 }
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285
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286 if (start < uri.size())
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287 {
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288 components.push_back(std::string(&uri[start], end - start));
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289 }
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290 }
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291
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292
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293 bool Toolbox::IsChildUri(const UriComponents& baseUri,
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294 const UriComponents& testedUri)
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295 {
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296 if (testedUri.size() < baseUri.size())
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297 {
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298 return false;
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299 }
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300
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301 for (size_t i = 0; i < baseUri.size(); i++)
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302 {
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303 if (baseUri[i] != testedUri[i])
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304 return false;
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305 }
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306
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307 return true;
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308 }
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309
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310
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311 std::string Toolbox::AutodetectMimeType(const std::string& path)
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312 {
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313 std::string contentType;
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314 size_t lastDot = path.rfind('.');
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315 size_t lastSlash = path.rfind('/');
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316
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317 if (lastDot == std::string::npos ||
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318 (lastSlash != std::string::npos && lastDot < lastSlash))
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319 {
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320 // No trailing dot, unable to detect the content type
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321 }
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322 else
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323 {
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324 const char* extension = &path[lastDot + 1];
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325
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326 // http://en.wikipedia.org/wiki/Mime_types
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327 // Text types
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328 if (!strcmp(extension, "txt"))
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329 contentType = "text/plain";
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330 else if (!strcmp(extension, "html"))
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331 contentType = "text/html";
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332 else if (!strcmp(extension, "xml"))
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333 contentType = "text/xml";
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334 else if (!strcmp(extension, "css"))
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335 contentType = "text/css";
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336
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337 // Application types
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338 else if (!strcmp(extension, "js"))
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339 contentType = "application/javascript";
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340 else if (!strcmp(extension, "json"))
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341 contentType = "application/json";
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342 else if (!strcmp(extension, "pdf"))
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343 contentType = "application/pdf";
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344
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345 // Images types
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346 else if (!strcmp(extension, "jpg") || !strcmp(extension, "jpeg"))
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347 contentType = "image/jpeg";
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348 else if (!strcmp(extension, "gif"))
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349 contentType = "image/gif";
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350 else if (!strcmp(extension, "png"))
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351 contentType = "image/png";
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352 }
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353
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354 return contentType;
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355 }
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356
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357
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358 std::string Toolbox::FlattenUri(const UriComponents& components,
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359 size_t fromLevel)
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360 {
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361 if (components.size() <= fromLevel)
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362 {
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363 return "/";
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364 }
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365 else
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366 {
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367 std::string r;
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368
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369 for (size_t i = fromLevel; i < components.size(); i++)
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370 {
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371 r += "/" + components[i];
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372 }
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373
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374 return r;
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375 }
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376 }
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377
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378
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379
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380 uint64_t Toolbox::GetFileSize(const std::string& path)
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381 {
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382 try
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383 {
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384 return static_cast<uint64_t>(boost::filesystem::file_size(path));
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385 }
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386 catch (boost::filesystem::filesystem_error)
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387 {
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c996319e90bc renaming in Core
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388 throw OrthancException(ErrorCode_InexistentFile);
0
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389 }
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390 }
22
1bc6327d1de3 MD5 sum
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parents: 10
diff changeset
391
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392
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393 static char GetHexadecimalCharacter(uint8_t value)
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394 {
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395 assert(value < 16);
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396
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397 if (value < 10)
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398 return value + '0';
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399 else
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400 return (value - 10) + 'a';
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parents: 10
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401 }
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parents: 10
diff changeset
402
23
62bd05fe4b7c support for ssl
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diff changeset
403
22
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404 void Toolbox::ComputeMD5(std::string& result,
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405 const std::string& data)
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diff changeset
406 {
1bc6327d1de3 MD5 sum
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diff changeset
407 md5_state_s state;
1bc6327d1de3 MD5 sum
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408 md5_init(&state);
1bc6327d1de3 MD5 sum
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parents: 10
diff changeset
409
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diff changeset
410 if (data.size() > 0)
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diff changeset
411 {
1bc6327d1de3 MD5 sum
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412 md5_append(&state, reinterpret_cast<const md5_byte_t*>(&data[0]),
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diff changeset
413 static_cast<int>(data.size()));
1bc6327d1de3 MD5 sum
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 10
diff changeset
414 }
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parents: 10
diff changeset
415
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416 md5_byte_t actualHash[16];
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417 md5_finish(&state, actualHash);
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418
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419 result.resize(32);
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diff changeset
420 for (unsigned int i = 0; i < 16; i++)
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421 {
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422 result[2 * i] = GetHexadecimalCharacter(actualHash[i] / 16);
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parents: 10
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423 result[2 * i + 1] = GetHexadecimalCharacter(actualHash[i] % 16);
1bc6327d1de3 MD5 sum
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parents: 10
diff changeset
424 }
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parents: 10
diff changeset
425 }
24
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parents: 23
diff changeset
426
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parents: 23
diff changeset
427
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428 std::string Toolbox::EncodeBase64(const std::string& data)
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429 {
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de8a5329b069 fix of base64
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430 return base64_encode(data);
24
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diff changeset
431 }
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diff changeset
432
87
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diff changeset
433
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434 #if defined(_WIN32)
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435 std::string Toolbox::GetPathToExecutable()
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436 {
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parents: 86
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437 // Yes, this is ugly, but there is no simple way to get the
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parents: 86
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438 // required buffer size, so we use a big constant
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439 std::vector<char> buffer(32768);
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440 /*int bytes =*/ GetModuleFileNameA(NULL, &buffer[0], static_cast<DWORD>(buffer.size() - 1));
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441 return std::string(&buffer[0]);
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diff changeset
442 }
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diff changeset
443
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444 #elif defined(__linux)
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445 std::string Toolbox::GetPathToExecutable()
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446 {
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447 std::vector<char> buffer(PATH_MAX + 1);
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diff changeset
448 ssize_t bytes = readlink("/proc/self/exe", &buffer[0], buffer.size() - 1);
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449 if (bytes == 0)
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450 {
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451 throw OrthancException("Unable to get the path to the executable");
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452 }
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453
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diff changeset
454 return std::string(&buffer[0]);
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parents: 86
diff changeset
455 }
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parents: 86
diff changeset
456
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457 #elif defined(__APPLE__) && defined(__MACH__)
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458 std::string Toolbox::GetPathToExecutable()
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459 {
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460 char pathbuf[PATH_MAX + 1];
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461 unsigned int bufsize = static_cast<int>(sizeof(pathbuf));
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462
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463 _NSGetExecutablePath( pathbuf, &bufsize);
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464
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diff changeset
465 return std::string(pathbuf);
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parents: 86
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466 }
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parents: 86
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467
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468 #else
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469 #error Support your platform here
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470 #endif
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471
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472
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473 std::string Toolbox::GetDirectoryOfExecutable()
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474 {
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475 boost::filesystem::path p(GetPathToExecutable());
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476 return p.parent_path().string();
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477 }
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478
107
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479
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480 std::string Toolbox::ConvertToUtf8(const std::string& source,
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481 const char* fromEncoding)
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482 {
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483 #if BOOST_HAS_LOCALE == 1
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484 try
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485 {
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486 return boost::locale::conv::to_utf<char>(source, fromEncoding);
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487 }
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488 catch (std::runtime_error&)
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489 {
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490 // Bad input string or bad encoding
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491 return ConvertToAscii(source);
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492 }
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493 #else
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494 IconvRabi iconv("UTF-8", fromEncoding);
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495 try
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496 {
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497 return iconv.Convert(source);
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498 }
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499 catch (OrthancException)
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500 {
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501 return ConvertToAscii(source);
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502 }
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503 #endif
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504 }
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505
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506
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507 std::string Toolbox::ConvertToAscii(const std::string& source)
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508 {
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509 std::string result;
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510
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511 result.reserve(source.size());
3b45473c0a73 replace boost::locale with iconv for debian
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512 for (size_t i = 0; i < source.size(); i++)
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513 {
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diff changeset
514 if (source[i] < 128 && source[i] >= 0 && !iscntrl(source[i]))
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515 {
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516 result.push_back(source[i]);
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517 }
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518 }
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519
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520 return result;
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521 }
177
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522
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523 void Toolbox::ComputeSHA1(std::string& result,
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524 const std::string& data)
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525 {
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526 SHA1 sha1;
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527 if (data.size() > 0)
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528 {
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529 sha1.Input(&data[0], data.size());
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530 }
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531
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532 unsigned digest[5];
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533
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534 // Sanity check for the memory layout: A SHA-1 digest is 160 bits wide
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535 assert(sizeof(unsigned) == 4 && sizeof(digest) == (160 / 8));
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536
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537 if (sha1.Result(digest))
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538 {
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539 result.resize(8 * 5 + 4);
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540 sprintf(&result[0], "%08x-%08x-%08x-%08x-%08x",
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541 digest[0],
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542 digest[1],
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543 digest[2],
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544 digest[3],
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545 digest[4]);
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diff changeset
546 }
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diff changeset
547 else
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diff changeset
548 {
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549 throw OrthancException(ErrorCode_InternalError);
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550 }
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diff changeset
551 }
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552
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diff changeset
553
0
3959d33612cc initial commit
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554 }