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1 /**
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59
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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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19
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20
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21 #include "Toolbox.h"
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22
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59
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23 #include "OrthancException.h"
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0
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24
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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
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30 #if defined(_WIN32)
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31 #include <windows.h>
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32 #endif
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33
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34 #if defined(__linux)
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10
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35 #include <signal.h>
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0
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36 #include <unistd.h>
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37 #endif
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38
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22
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39 #include "../Resources/md5/md5.h"
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24
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40 #include "../Resources/base64/base64.h"
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0
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41
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59
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42 namespace Orthanc
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0
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43 {
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44 static bool finish;
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45
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10
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46 #if defined(_WIN32)
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22
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47 static BOOL WINAPI ConsoleControlHandler(DWORD dwCtrlType)
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48 {
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49 // http://msdn.microsoft.com/en-us/library/ms683242(v=vs.85).aspx
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50 finish = true;
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51 return true;
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52 }
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53 #else
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0
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54 static void SignalHandler(int)
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55 {
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56 finish = true;
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57 }
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22
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58 #endif
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0
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59
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60 void Toolbox::Sleep(uint32_t seconds)
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61 {
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62 #if defined(_WIN32)
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63 ::Sleep(static_cast<DWORD>(seconds) * static_cast<DWORD>(1000));
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64 #elif defined(__linux)
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65 usleep(static_cast<uint64_t>(seconds) * static_cast<uint64_t>(1000000));
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66 #else
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67 #error Support your platform here
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68 #endif
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69 }
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70
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71 void Toolbox::USleep(uint64_t microSeconds)
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72 {
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73 #if defined(_WIN32)
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8
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74 ::Sleep(static_cast<DWORD>(microSeconds / static_cast<uint64_t>(1000)));
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0
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75 #elif defined(__linux)
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76 usleep(microSeconds);
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77 #else
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78 #error Support your platform here
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79 #endif
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80 }
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81
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82
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83 void Toolbox::ServerBarrier()
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84 {
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85 #if defined(_WIN32)
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86 SetConsoleCtrlHandler(ConsoleControlHandler, true);
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87 #else
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0
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88 signal(SIGINT, SignalHandler);
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89 signal(SIGQUIT, SignalHandler);
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90 #endif
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91
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92 finish = false;
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93 while (!finish)
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94 {
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95 USleep(100000);
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96 }
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97
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98 #if defined(_WIN32)
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99 SetConsoleCtrlHandler(ConsoleControlHandler, false);
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100 #else
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101 signal(SIGINT, NULL);
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102 signal(SIGQUIT, NULL);
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103 #endif
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104 }
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105
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106
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107
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108 void Toolbox::ToUpperCase(std::string& s)
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109 {
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110 std::transform(s.begin(), s.end(), s.begin(), toupper);
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111 }
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112
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113
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114 void Toolbox::ToLowerCase(std::string& s)
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115 {
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116 std::transform(s.begin(), s.end(), s.begin(), tolower);
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117 }
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118
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119
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120
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121 void Toolbox::ReadFile(std::string& content,
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122 const std::string& path)
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123 {
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124 boost::filesystem::ifstream f;
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125 f.open(path, std::ifstream::in | std::ios::binary);
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126 if (!f.good())
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127 {
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128 throw OrthancException("Unable to open a file");
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0
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129 }
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130
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131 // http://www.cplusplus.com/reference/iostream/istream/tellg/
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132 f.seekg(0, std::ios::end);
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133 std::streamsize size = f.tellg();
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134 f.seekg(0, std::ios::beg);
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135
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136 content.resize(size);
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137 if (size != 0)
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138 {
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139 f.read(reinterpret_cast<char*>(&content[0]), size);
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140 }
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141
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142 f.close();
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143 }
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144
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145
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146 void Toolbox::RemoveFile(const std::string& path)
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147 {
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148 if (boost::filesystem::exists(path))
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149 {
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150 if (boost::filesystem::is_regular_file(path))
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151 boost::filesystem::remove(path);
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152 else
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153 throw OrthancException("The path is not a regular file: " + path);
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0
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154 }
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155 }
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156
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157
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158
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159 void Toolbox::SplitUriComponents(UriComponents& components,
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160 const std::string& uri)
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161 {
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162 static const char URI_SEPARATOR = '/';
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163
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164 components.clear();
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165
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166 if (uri.size() == 0 ||
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167 uri[0] != URI_SEPARATOR)
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168 {
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169 throw OrthancException(ErrorCode_UriSyntax);
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0
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170 }
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171
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172 // Count the number of slashes in the URI to make an assumption
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173 // about the number of components in the URI
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174 unsigned int estimatedSize = 0;
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175 for (unsigned int i = 0; i < uri.size(); i++)
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176 {
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177 if (uri[i] == URI_SEPARATOR)
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178 estimatedSize++;
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179 }
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180
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181 components.reserve(estimatedSize - 1);
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182
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183 unsigned int start = 1;
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184 unsigned int end = 1;
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185 while (end < uri.size())
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186 {
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187 // This is the loop invariant
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188 assert(uri[start - 1] == '/' && (end >= start));
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189
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190 if (uri[end] == '/')
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191 {
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192 components.push_back(std::string(&uri[start], end - start));
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193 end++;
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194 start = end;
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195 }
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196 else
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197 {
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198 end++;
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199 }
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200 }
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201
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202 if (start < uri.size())
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203 {
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204 components.push_back(std::string(&uri[start], end - start));
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205 }
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206 }
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207
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208
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209 bool Toolbox::IsChildUri(const UriComponents& baseUri,
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210 const UriComponents& testedUri)
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211 {
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212 if (testedUri.size() < baseUri.size())
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213 {
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214 return false;
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215 }
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216
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217 for (size_t i = 0; i < baseUri.size(); i++)
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218 {
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219 if (baseUri[i] != testedUri[i])
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220 return false;
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221 }
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222
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223 return true;
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224 }
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225
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226
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227 std::string Toolbox::AutodetectMimeType(const std::string& path)
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228 {
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229 std::string contentType;
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230 size_t lastDot = path.rfind('.');
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231 size_t lastSlash = path.rfind('/');
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232
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233 if (lastDot == std::string::npos ||
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234 (lastSlash != std::string::npos && lastDot < lastSlash))
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235 {
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236 // No trailing dot, unable to detect the content type
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237 }
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238 else
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239 {
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240 const char* extension = &path[lastDot + 1];
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241
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242 // http://en.wikipedia.org/wiki/Mime_types
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243 // Text types
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244 if (!strcmp(extension, "txt"))
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245 contentType = "text/plain";
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246 else if (!strcmp(extension, "html"))
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247 contentType = "text/html";
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248 else if (!strcmp(extension, "xml"))
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249 contentType = "text/xml";
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250 else if (!strcmp(extension, "css"))
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251 contentType = "text/css";
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252
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253 // Application types
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254 else if (!strcmp(extension, "js"))
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255 contentType = "application/javascript";
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256 else if (!strcmp(extension, "json"))
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257 contentType = "application/json";
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258 else if (!strcmp(extension, "pdf"))
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259 contentType = "application/pdf";
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260
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261 // Images types
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262 else if (!strcmp(extension, "jpg") || !strcmp(extension, "jpeg"))
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263 contentType = "image/jpeg";
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264 else if (!strcmp(extension, "gif"))
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265 contentType = "image/gif";
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266 else if (!strcmp(extension, "png"))
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267 contentType = "image/png";
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268 }
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269
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270 return contentType;
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271 }
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272
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273
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274 std::string Toolbox::FlattenUri(const UriComponents& components,
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275 size_t fromLevel)
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276 {
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277 if (components.size() <= fromLevel)
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278 {
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279 return "/";
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280 }
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281 else
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282 {
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283 std::string r;
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284
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285 for (size_t i = fromLevel; i < components.size(); i++)
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286 {
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287 r += "/" + components[i];
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288 }
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289
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290 return r;
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291 }
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292 }
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293
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294
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295
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296 uint64_t Toolbox::GetFileSize(const std::string& path)
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297 {
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298 try
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299 {
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300 return static_cast<uint64_t>(boost::filesystem::file_size(path));
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301 }
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302 catch (boost::filesystem::filesystem_error)
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303 {
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304 throw OrthancException(ErrorCode_InexistentFile);
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305 }
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306 }
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307
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308
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309 static char GetHexadecimalCharacter(uint8_t value)
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310 {
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311 assert(value < 16);
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312
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313 if (value < 10)
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314 return value + '0';
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315 else
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316 return (value - 10) + 'a';
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317 }
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318
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319
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320 void Toolbox::ComputeMD5(std::string& result,
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321 const std::string& data)
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322 {
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323 md5_state_s state;
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324 md5_init(&state);
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325
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326 if (data.size() > 0)
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327 {
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328 md5_append(&state, reinterpret_cast<const md5_byte_t*>(&data[0]),
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329 static_cast<int>(data.size()));
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330 }
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331
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332 md5_byte_t actualHash[16];
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333 md5_finish(&state, actualHash);
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334
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335 result.resize(32);
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336 for (unsigned int i = 0; i < 16; i++)
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337 {
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338 result[2 * i] = GetHexadecimalCharacter(actualHash[i] / 16);
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339 result[2 * i + 1] = GetHexadecimalCharacter(actualHash[i] % 16);
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340 }
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341 }
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24
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342
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343
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344 std::string Toolbox::EncodeBase64(const std::string& data)
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345 {
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346 return base64_encode(data.c_str());
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347 }
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348
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0
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349 }
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