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annotate Core/Toolbox.cpp @ 111:0fc3b69c0357

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preparing for release
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 04 Oct 2012 12:45:24 +0200
parents fd7b0a3e6260
children fe180eae201d
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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 * This program is distributed in the hope that it will be useful, but
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12 * WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU General Public License
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17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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18 **/
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21 #include "Toolbox.h"
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23 #include "OrthancException.h"
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25 #include <string.h>
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26 #include <boost/filesystem.hpp>
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27 #include <boost/filesystem/fstream.hpp>
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28 #include <algorithm>
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29 #include <ctype.h>
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31 #if defined(_WIN32)
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32 #include <windows.h>
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33 #endif
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34
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35 #if defined(__APPLE__) && defined(__MACH__)
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36 #include <mach-o/dyld.h> /* _NSGetExecutablePath */
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37 #include <limits.h> /* PATH_MAX */
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38 #endif
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39
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40 #if defined(__linux)
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41 #include <limits.h> /* PATH_MAX */
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42 #include <signal.h>
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43 #include <unistd.h>
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44 #endif
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45
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46 #if BOOST_HAS_LOCALE == 1
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47 #include <boost/locale.hpp>
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48 #else
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49 #include <iconv.h>
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50 #endif
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51
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52 #include "../Resources/md5/md5.h"
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53 #include "../Resources/base64/base64.h"
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54
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56 #if BOOST_HAS_LOCALE == 0
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57 namespace
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58 {
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59 class IconvRabi
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60 {
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61 private:
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62 iconv_t context_;
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63
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64 public:
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65 IconvRabi(const char* tocode, const char* fromcode)
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66 {
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67 context_ = iconv_open(tocode, fromcode);
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68 if (!context_)
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69 {
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70 throw Orthanc::OrthancException("Unknown code page");
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71 }
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72 }
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73
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74 ~IconvRabi()
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75 {
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76 iconv_close(context_);
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77 }
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79 std::string Convert(const std::string& source)
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80 {
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81 if (source.size() == 0)
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82 {
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83 return "";
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84 }
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85
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86 std::string result;
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87 char* sourcePos = const_cast<char*>(&source[0]);
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88 size_t sourceLeft = source.size();
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89
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90 std::vector<char> storage(source.size() + 10);
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91
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92 while (sourceLeft > 0)
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93 {
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94 char* tmp = &storage[0];
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95 size_t outputLeft = storage.size();
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96 size_t err = iconv(context_, &sourcePos, &sourceLeft, &tmp, &outputLeft);
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97 if (err < 0)
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98 {
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99 throw Orthanc::OrthancException("Bad character in sequence");
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100 }
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101
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102 size_t count = storage.size() - outputLeft;
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103 result += std::string(&storage[0], count);
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104 }
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105
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106 return result;
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107 }
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108 };
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109 }
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110 #endif
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112
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113 namespace Orthanc
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114 {
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115 static bool finish;
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116
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117 #if defined(_WIN32)
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118 static BOOL WINAPI ConsoleControlHandler(DWORD dwCtrlType)
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119 {
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120 // http://msdn.microsoft.com/en-us/library/ms683242(v=vs.85).aspx
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121 finish = true;
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122 return true;
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123 }
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124 #else
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125 static void SignalHandler(int)
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126 {
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127 finish = true;
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128 }
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129 #endif
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130
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131 void Toolbox::Sleep(uint32_t seconds)
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132 {
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133 #if defined(_WIN32)
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134 ::Sleep(static_cast<DWORD>(seconds) * static_cast<DWORD>(1000));
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135 #elif defined(__linux)
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136 usleep(static_cast<uint64_t>(seconds) * static_cast<uint64_t>(1000000));
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137 #else
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138 #error Support your platform here
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139 #endif
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140 }
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141
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142 void Toolbox::USleep(uint64_t microSeconds)
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143 {
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144 #if defined(_WIN32)
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145 ::Sleep(static_cast<DWORD>(microSeconds / static_cast<uint64_t>(1000)));
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146 #elif defined(__linux)
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147 usleep(microSeconds);
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148 #else
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149 #error Support your platform here
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150 #endif
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151 }
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152
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153
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154 void Toolbox::ServerBarrier()
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155 {
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156 #if defined(_WIN32)
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157 SetConsoleCtrlHandler(ConsoleControlHandler, true);
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158 #else
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159 signal(SIGINT, SignalHandler);
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160 signal(SIGQUIT, SignalHandler);
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161 #endif
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162
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163 finish = false;
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164 while (!finish)
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165 {
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166 USleep(100000);
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167 }
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168
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169 #if defined(_WIN32)
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170 SetConsoleCtrlHandler(ConsoleControlHandler, false);
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171 #else
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172 signal(SIGINT, NULL);
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173 signal(SIGQUIT, NULL);
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174 #endif
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175 }
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176
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177
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178
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179 void Toolbox::ToUpperCase(std::string& s)
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180 {
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181 std::transform(s.begin(), s.end(), s.begin(), toupper);
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182 }
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183
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184
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185 void Toolbox::ToLowerCase(std::string& s)
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186 {
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187 std::transform(s.begin(), s.end(), s.begin(), tolower);
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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::ReadFile(std::string& content,
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193 const std::string& path)
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194 {
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195 boost::filesystem::ifstream f;
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196 f.open(path, std::ifstream::in | std::ios::binary);
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197 if (!f.good())
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198 {
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199 throw OrthancException("Unable to open a file");
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200 }
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201
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202 // http://www.cplusplus.com/reference/iostream/istream/tellg/
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203 f.seekg(0, std::ios::end);
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204 std::streamsize size = f.tellg();
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205 f.seekg(0, std::ios::beg);
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206
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207 content.resize(size);
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208 if (size != 0)
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209 {
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210 f.read(reinterpret_cast<char*>(&content[0]), size);
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211 }
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212
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213 f.close();
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214 }
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215
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216
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217 void Toolbox::RemoveFile(const std::string& path)
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218 {
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219 if (boost::filesystem::exists(path))
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220 {
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221 if (boost::filesystem::is_regular_file(path))
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222 boost::filesystem::remove(path);
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223 else
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224 throw OrthancException("The path is not a regular file: " + path);
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225 }
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226 }
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227
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228
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229
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230 void Toolbox::SplitUriComponents(UriComponents& components,
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231 const std::string& uri)
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232 {
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233 static const char URI_SEPARATOR = '/';
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234
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235 components.clear();
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236
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237 if (uri.size() == 0 ||
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238 uri[0] != URI_SEPARATOR)
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239 {
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240 throw OrthancException(ErrorCode_UriSyntax);
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241 }
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242
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243 // Count the number of slashes in the URI to make an assumption
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244 // about the number of components in the URI
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245 unsigned int estimatedSize = 0;
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246 for (unsigned int i = 0; i < uri.size(); i++)
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247 {
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248 if (uri[i] == URI_SEPARATOR)
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249 estimatedSize++;
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250 }
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251
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252 components.reserve(estimatedSize - 1);
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253
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254 unsigned int start = 1;
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255 unsigned int end = 1;
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256 while (end < uri.size())
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257 {
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258 // This is the loop invariant
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259 assert(uri[start - 1] == '/' && (end >= start));
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260
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261 if (uri[end] == '/')
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262 {
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263 components.push_back(std::string(&uri[start], end - start));
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264 end++;
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265 start = end;
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266 }
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267 else
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268 {
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269 end++;
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270 }
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271 }
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272
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273 if (start < uri.size())
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274 {
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275 components.push_back(std::string(&uri[start], end - start));
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276 }
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277 }
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278
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279
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280 bool Toolbox::IsChildUri(const UriComponents& baseUri,
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281 const UriComponents& testedUri)
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282 {
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283 if (testedUri.size() < baseUri.size())
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284 {
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285 return false;
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286 }
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287
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288 for (size_t i = 0; i < baseUri.size(); i++)
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289 {
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290 if (baseUri[i] != testedUri[i])
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291 return false;
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292 }
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293
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294 return true;
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295 }
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296
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297
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298 std::string Toolbox::AutodetectMimeType(const std::string& path)
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299 {
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300 std::string contentType;
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301 size_t lastDot = path.rfind('.');
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302 size_t lastSlash = path.rfind('/');
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303
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304 if (lastDot == std::string::npos ||
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305 (lastSlash != std::string::npos && lastDot < lastSlash))
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306 {
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307 // No trailing dot, unable to detect the content type
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308 }
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309 else
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310 {
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311 const char* extension = &path[lastDot + 1];
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312
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313 // http://en.wikipedia.org/wiki/Mime_types
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314 // Text types
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315 if (!strcmp(extension, "txt"))
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316 contentType = "text/plain";
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317 else if (!strcmp(extension, "html"))
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318 contentType = "text/html";
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319 else if (!strcmp(extension, "xml"))
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320 contentType = "text/xml";
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321 else if (!strcmp(extension, "css"))
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322 contentType = "text/css";
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323
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324 // Application types
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325 else if (!strcmp(extension, "js"))
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326 contentType = "application/javascript";
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327 else if (!strcmp(extension, "json"))
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328 contentType = "application/json";
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329 else if (!strcmp(extension, "pdf"))
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330 contentType = "application/pdf";
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331
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332 // Images types
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333 else if (!strcmp(extension, "jpg") || !strcmp(extension, "jpeg"))
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334 contentType = "image/jpeg";
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335 else if (!strcmp(extension, "gif"))
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336 contentType = "image/gif";
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337 else if (!strcmp(extension, "png"))
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338 contentType = "image/png";
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339 }
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340
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341 return contentType;
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342 }
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343
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344
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345 std::string Toolbox::FlattenUri(const UriComponents& components,
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346 size_t fromLevel)
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347 {
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348 if (components.size() <= fromLevel)
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349 {
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350 return "/";
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351 }
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352 else
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353 {
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354 std::string r;
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355
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356 for (size_t i = fromLevel; i < components.size(); i++)
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357 {
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358 r += "/" + components[i];
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359 }
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360
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361 return r;
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362 }
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363 }
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364
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365
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366
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367 uint64_t Toolbox::GetFileSize(const std::string& path)
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368 {
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369 try
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370 {
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371 return static_cast<uint64_t>(boost::filesystem::file_size(path));
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372 }
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373 catch (boost::filesystem::filesystem_error)
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374 {
59
c996319e90bc renaming in Core
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375 throw OrthancException(ErrorCode_InexistentFile);
0
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376 }
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377 }
22
1bc6327d1de3 MD5 sum
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diff changeset
378
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diff changeset
379
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380 static char GetHexadecimalCharacter(uint8_t value)
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381 {
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382 assert(value < 16);
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383
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384 if (value < 10)
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385 return value + '0';
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386 else
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387 return (value - 10) + 'a';
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388 }
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389
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diff changeset
390
22
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391 void Toolbox::ComputeMD5(std::string& result,
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392 const std::string& data)
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393 {
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394 md5_state_s state;
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395 md5_init(&state);
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396
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397 if (data.size() > 0)
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398 {
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399 md5_append(&state, reinterpret_cast<const md5_byte_t*>(&data[0]),
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400 static_cast<int>(data.size()));
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401 }
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402
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403 md5_byte_t actualHash[16];
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404 md5_finish(&state, actualHash);
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405
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406 result.resize(32);
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407 for (unsigned int i = 0; i < 16; i++)
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408 {
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409 result[2 * i] = GetHexadecimalCharacter(actualHash[i] / 16);
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410 result[2 * i + 1] = GetHexadecimalCharacter(actualHash[i] % 16);
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411 }
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diff changeset
412 }
24
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diff changeset
413
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414
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415 std::string Toolbox::EncodeBase64(const std::string& data)
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416 {
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417 return base64_encode(data);
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418 }
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diff changeset
419
87
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420
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421 #if defined(_WIN32)
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422 std::string Toolbox::GetPathToExecutable()
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423 {
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424 // Yes, this is ugly, but there is no simple way to get the
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425 // required buffer size, so we use a big constant
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426 std::vector<char> buffer(32768);
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427 /*int bytes =*/ GetModuleFileNameA(NULL, &buffer[0], static_cast<DWORD>(buffer.size() - 1));
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428 return std::string(&buffer[0]);
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429 }
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430
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431 #elif defined(__linux)
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432 std::string Toolbox::GetPathToExecutable()
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433 {
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434 std::vector<char> buffer(PATH_MAX + 1);
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435 ssize_t bytes = readlink("/proc/self/exe", &buffer[0], buffer.size() - 1);
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436 if (bytes == 0)
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437 {
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438 throw OrthancException("Unable to get the path to the executable");
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439 }
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440
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441 return std::string(&buffer[0]);
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442 }
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443
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444 #elif defined(__APPLE__) && defined(__MACH__)
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445 std::string Toolbox::GetPathToExecutable()
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446 {
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447 char pathbuf[PATH_MAX + 1];
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448 unsigned int bufsize = static_cast<int>(sizeof(pathbuf));
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449
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450 _NSGetExecutablePath( pathbuf, &bufsize);
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451
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452 return std::string(pathbuf);
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453 }
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454
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455 #else
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456 #error Support your platform here
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457 #endif
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458
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459
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460 std::string Toolbox::GetDirectoryOfExecutable()
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461 {
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462 boost::filesystem::path p(GetPathToExecutable());
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463 return p.parent_path().string();
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464 }
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465
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466
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467 std::string Toolbox::ConvertToUtf8(const std::string& source,
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468 const char* fromEncoding)
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469 {
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470 #if BOOST_HAS_LOCALE == 1
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471 try
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472 {
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473 return boost::locale::conv::to_utf<char>(source, fromEncoding);
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474 }
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475 catch (std::runtime_error&)
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476 {
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477 // Bad input string or bad encoding
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478 return ConvertToAscii(source);
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479 }
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480 #else
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481 IconvRabi iconv("UTF-8", fromEncoding);
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482 try
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483 {
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484 return iconv.Convert(source);
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485 }
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486 catch (OrthancException)
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487 {
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488 return ConvertToAscii(source);
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489 }
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490 #endif
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491 }
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492
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493
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494 std::string Toolbox::ConvertToAscii(const std::string& source)
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495 {
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496 std::string result;
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497
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498 result.reserve(source.size());
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499 for (size_t i = 0; i < source.size(); i++)
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500 {
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501 if (source[i] < 128 && source[i] >= 0 && !iscntrl(source[i]))
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502 {
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503 result.push_back(source[i]);
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504 }
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505 }
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506
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507 return result;
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508 }
0
3959d33612cc initial commit
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509 }