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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2014 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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31
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32
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33 #pragma once
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34
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35 #include "RestApi.h"
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36
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972
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37 #include "../OrthancException.h"
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38
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969
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39 #include <list>
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972
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40 #include <set>
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969
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41
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42 namespace Orthanc
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43 {
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44 class RestApiHierarchy
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45 {
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46 private:
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47 class Handlers
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48 {
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49 private:
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50 RestApiGetCall::Handler getHandler_;
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51 RestApiPostCall::Handler postHandler_;
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52 RestApiPutCall::Handler putHandler_;
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53 RestApiDeleteCall::Handler deleteHandler_;
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54
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55 public:
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56 Handlers();
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57
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58 bool HasHandler(HttpMethod method) const;
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59
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60 RestApiGetCall::Handler GetGetHandler() const;
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61
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62 RestApiPutCall::Handler GetPutHandler() const;
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63
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64 RestApiPostCall::Handler GetPostHandler() const;
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65
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66 RestApiDeleteCall::Handler GetDeleteHandler() const;
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67
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68 void Register(RestApiGetCall::Handler handler)
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69 {
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70 getHandler_ = handler;
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71 }
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72
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974
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73 void Register(RestApiPutCall::Handler handler)
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74 {
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75 putHandler_ = handler;
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76 }
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77
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78 void Register(RestApiPostCall::Handler handler)
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79 {
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80 postHandler_ = handler;
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81 }
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82
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83 void Register(RestApiDeleteCall::Handler handler)
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84 {
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85 deleteHandler_ = handler;
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86 }
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87
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88 bool IsEmpty() const;
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89 };
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90
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91
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92 typedef std::map<std::string, RestApiHierarchy*> Children;
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93 typedef bool (*ResourceCallback) (Handlers& handlers,
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94 const UriComponents& uri,
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95 const RestApiPath::Components& components,
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96 const UriComponents& trailing,
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97 void* call);
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98
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99 Handlers handlers_;
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100 Children children_;
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101 Children wildcardChildren_;
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102 Handlers universalHandlers_;
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103
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104
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105 static RestApiHierarchy& AddChild(Children& children,
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106 const std::string& name);
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107
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108 static void DeleteChildren(Children& children);
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109
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110 template <typename Handler>
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111 void RegisterInternal(const RestApiPath& path,
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112 Handler handler,
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113 size_t level);
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114
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115 bool LookupHandler(RestApiPath::Components& components,
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116 const UriComponents& uri,
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117 ResourceCallback callback,
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118 size_t level,
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119 void* call);
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120
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121 bool GetDirectory(Json::Value& result,
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122 const UriComponents& uri,
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123 size_t level);
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124
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125 static bool GetCallback(Handlers& handlers,
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126 const UriComponents& uri,
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127 const RestApiPath::Components& components,
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128 const UriComponents& trailing,
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129 void* call);
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130
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131 static bool PostCallback(Handlers& handlers,
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132 const UriComponents& uri,
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133 const RestApiPath::Components& components,
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134 const UriComponents& trailing,
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135 void* call);
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136
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137 static bool PutCallback(Handlers& handlers,
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138 const UriComponents& uri,
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139 const RestApiPath::Components& components,
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140 const UriComponents& trailing,
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141 void* call);
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142
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143 static bool DeleteCallback(Handlers& handlers,
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144 const UriComponents& uri,
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145 const RestApiPath::Components& components,
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146 const UriComponents& trailing,
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147 void* call);
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148
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149
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150 public:
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151 ~RestApiHierarchy();
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152
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153 void Register(const std::string& uri,
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154 RestApiGetCall::Handler handler);
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155
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970
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156 void Register(const std::string& uri,
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157 RestApiPutCall::Handler handler);
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158
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970
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159 void Register(const std::string& uri,
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160 RestApiPostCall::Handler handler);
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161
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162 void Register(const std::string& uri,
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163 RestApiDeleteCall::Handler handler);
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164
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165 void CreateSiteMap(Json::Value& target) const;
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166
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167 bool GetDirectory(Json::Value& result,
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168 const UriComponents& uri)
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169 {
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170 return GetDirectory(result, uri, 0);
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171 }
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172
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173 bool Handle(RestApiGetCall& call,
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174 const UriComponents& uri);
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175
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176 bool Handle(RestApiPutCall& call,
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177 const UriComponents& uri);
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178
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179 bool Handle(RestApiPostCall& call,
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180 const UriComponents& uri);
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181
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182 bool Handle(RestApiDeleteCall& call,
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183 const UriComponents& uri);
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184 };
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185 }
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