Mercurial > hg > orthanc

annotate Core/Lua/LuaContext.cpp @ 1489:1389834e130f

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basic logger
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 04 Aug 2015 12:22:08 +0200
parents f967bdf8534e
children 33d34bc4ac15
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, 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 #include "../PrecompiledHeaders.h"
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34 #include "LuaContext.h"
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35
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36 #include "../Logging.h"
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37
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38 #include <set>
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39 #include <cassert>
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40 #include <boost/lexical_cast.hpp>
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41
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42 extern "C"
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43 {
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44 #include <lualib.h>
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45 #include <lauxlib.h>
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46 }
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47
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48 namespace Orthanc
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49 {
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50 LuaContext& LuaContext::GetLuaContext(lua_State *state)
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51 {
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52 const void* value = GetGlobalVariable(state, "_LuaContext");
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53 assert(value != NULL);
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54
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55 return *const_cast<LuaContext*>(reinterpret_cast<const LuaContext*>(value));
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56 }
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57
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58 int LuaContext::PrintToLog(lua_State *state)
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59 {
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60 LuaContext& that = GetLuaContext(state);
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61
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62 // http://medek.wordpress.com/2009/02/03/wrapping-lua-errors-and-print-function/
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63 int nArgs = lua_gettop(state);
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64 lua_getglobal(state, "tostring");
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65
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66 // Make sure you start at 1 *NOT* 0 for arrays in Lua.
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67 std::string result;
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68
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69 for (int i = 1; i <= nArgs; i++)
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70 {
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71 const char *s;
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72 lua_pushvalue(state, -1);
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73 lua_pushvalue(state, i);
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74 lua_call(state, 1, 1);
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75 s = lua_tostring(state, -1);
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76
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77 if (result.size() > 0)
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78 result.append(", ");
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79
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80 if (s == NULL)
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81 result.append("<No conversion to string>");
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82 else
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83 result.append(s);
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84
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85 lua_pop(state, 1);
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86 }
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87
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88 LOG(WARNING) << "Lua says: " << result;
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89 that.log_.append(result);
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90 that.log_.append("\n");
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91
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92 return 0;
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93 }
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94
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95
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96 int LuaContext::ParseJson(lua_State *state)
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97 {
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98 LuaContext& that = GetLuaContext(state);
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99
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100 int nArgs = lua_gettop(state);
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101 if (nArgs != 1 ||
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102 !lua_isstring(state, 1)) // Password
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103 {
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104 lua_pushnil(state);
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105 return 1;
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106 }
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107
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108 const char* str = lua_tostring(state, 1);
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109
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110 Json::Value value;
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111 Json::Reader reader;
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112 if (reader.parse(str, str + strlen(str), value))
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113 {
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114 that.PushJson(value);
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115 }
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116 else
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117 {
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118 lua_pushnil(state);
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119 }
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120
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121 return 1;
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122 }
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123
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124
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125 int LuaContext::DumpJson(lua_State *state)
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126 {
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127 LuaContext& that = GetLuaContext(state);
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128
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129 int nArgs = lua_gettop(state);
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130 if (nArgs != 1)
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131 {
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132 lua_pushnil(state);
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133 return 1;
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134 }
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135
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136 Json::Value json;
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137 that.GetJson(json, 1);
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138
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139 Json::FastWriter writer;
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140 std::string s = writer.write(json);
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141 lua_pushlstring(state, s.c_str(), s.size());
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142
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143 return 1;
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144 }
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145
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146
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147 int LuaContext::SetHttpCredentials(lua_State *state)
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148 {
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149 LuaContext& that = GetLuaContext(state);
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150
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151 // Check the types of the arguments
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152 int nArgs = lua_gettop(state);
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153 if (nArgs != 2 ||
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154 !lua_isstring(state, 1) || // Username
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155 !lua_isstring(state, 2)) // Password
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156 {
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157 LOG(ERROR) << "Lua: Bad parameters to SetHttpCredentials()";
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158 }
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159 else
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160 {
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161 // Configure the HTTP client
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162 const char* username = lua_tostring(state, 1);
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163 const char* password = lua_tostring(state, 2);
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164 that.httpClient_.SetCredentials(username, password);
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165 }
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166
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167 return 0;
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168 }
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169
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170
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171 bool LuaContext::AnswerHttpQuery(lua_State* state)
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172 {
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173 std::string str;
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174
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175 try
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176 {
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177 httpClient_.Apply(str);
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178 }
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179 catch (OrthancException& e)
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180 {
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181 return false;
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182 }
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183
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184 // Return the result of the HTTP request
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185 lua_pushlstring(state, str.c_str(), str.size());
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186
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187 return true;
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188 }
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189
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190
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191 int LuaContext::CallHttpGet(lua_State *state)
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192 {
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193 LuaContext& that = GetLuaContext(state);
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194
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195 // Check the types of the arguments
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196 int nArgs = lua_gettop(state);
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197 if (nArgs != 1 || !lua_isstring(state, 1)) // URL
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198 {
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199 LOG(ERROR) << "Lua: Bad parameters to HttpGet()";
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200 lua_pushnil(state);
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201 return 1;
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202 }
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203
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204 // Configure the HTTP client class
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205 const char* url = lua_tostring(state, 1);
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206 that.httpClient_.SetMethod(HttpMethod_Get);
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207 that.httpClient_.SetUrl(url);
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208
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209 // Do the HTTP GET request
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210 if (!that.AnswerHttpQuery(state))
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211 {
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212 LOG(ERROR) << "Lua: Error in HttpGet() for URL " << url;
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213 lua_pushnil(state);
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214 }
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215
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216 return 1;
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217 }
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218
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219
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220 int LuaContext::CallHttpPostOrPut(lua_State *state,
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221 HttpMethod method)
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222 {
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223 LuaContext& that = GetLuaContext(state);
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224
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225 // Check the types of the arguments
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226 int nArgs = lua_gettop(state);
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227 if ((nArgs != 1 && nArgs != 2) ||
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228 !lua_isstring(state, 1) || // URL
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229 (nArgs >= 2 && !lua_isstring(state, 2))) // Body data
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230 {
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231 LOG(ERROR) << "Lua: Bad parameters to HttpPost() or HttpPut()";
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232 lua_pushnil(state);
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233 return 1;
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234 }
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235
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236 // Configure the HTTP client class
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237 const char* url = lua_tostring(state, 1);
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238 that.httpClient_.SetMethod(method);
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239 that.httpClient_.SetUrl(url);
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240
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241 if (nArgs >= 2)
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242 {
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243 that.httpClient_.SetPostData(lua_tostring(state, 2));
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244 }
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245 else
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246 {
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247 that.httpClient_.AccessPostData().clear();
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248 }
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249
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250 // Do the HTTP POST/PUT request
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251 if (!that.AnswerHttpQuery(state))
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252 {
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253 LOG(ERROR) << "Lua: Error in HttpPost() or HttpPut() for URL " << url;
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254 lua_pushnil(state);
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255 }
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256
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257 return 1;
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258 }
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259
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260
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261 int LuaContext::CallHttpPost(lua_State *state)
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262 {
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263 return CallHttpPostOrPut(state, HttpMethod_Post);
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264 }
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265
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266
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267 int LuaContext::CallHttpPut(lua_State *state)
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268 {
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269 return CallHttpPostOrPut(state, HttpMethod_Put);
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270 }
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271
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272
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273 int LuaContext::CallHttpDelete(lua_State *state)
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274 {
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275 LuaContext& that = GetLuaContext(state);
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276
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277 // Check the types of the arguments
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278 int nArgs = lua_gettop(state);
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279 if (nArgs != 1 || !lua_isstring(state, 1)) // URL
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280 {
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281 LOG(ERROR) << "Lua: Bad parameters to HttpDelete()";
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282 lua_pushnil(state);
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283 return 1;
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284 }
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285
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286 // Configure the HTTP client class
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287 const char* url = lua_tostring(state, 1);
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288 that.httpClient_.SetMethod(HttpMethod_Delete);
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289 that.httpClient_.SetUrl(url);
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290
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291 // Do the HTTP DELETE request
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292 std::string s;
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293 if (!that.httpClient_.Apply(s))
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294 {
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295 LOG(ERROR) << "Lua: Error in HttpDelete() for URL " << url;
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296 lua_pushnil(state);
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297 }
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298 else
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299 {
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300 lua_pushstring(state, "SUCCESS");
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301 }
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302
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303 return 1;
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304 }
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305
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306
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307 void LuaContext::PushJson(const Json::Value& value)
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308 {
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309 if (value.isString())
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310 {
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311 const std::string s = value.asString();
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312 lua_pushlstring(lua_, s.c_str(), s.size());
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313 }
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314 else if (value.isDouble())
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315 {
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316 lua_pushnumber(lua_, value.asDouble());
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317 }
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318 else if (value.isInt())
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319 {
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320 lua_pushinteger(lua_, value.asInt());
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321 }
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322 else if (value.isUInt())
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323 {
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324 lua_pushinteger(lua_, value.asUInt());
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325 }
92f4bf2c5d73 HTTP GET in Lua
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326 else if (value.isBool())
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diff changeset
327 {
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328 lua_pushboolean(lua_, value.asBool());
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329 }
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330 else if (value.isNull())
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331 {
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332 lua_pushnil(lua_);
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
333 }
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334 else if (value.isArray())
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
335 {
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336 lua_newtable(lua_);
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
337
92f4bf2c5d73 HTTP GET in Lua
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338 // http://lua-users.org/wiki/SimpleLuaApiExample
92f4bf2c5d73 HTTP GET in Lua
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339 for (Json::Value::ArrayIndex i = 0; i < value.size(); i++)
92f4bf2c5d73 HTTP GET in Lua
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340 {
92f4bf2c5d73 HTTP GET in Lua
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341 // Push the table index (note the "+1" because of Lua conventions)
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342 lua_pushnumber(lua_, i + 1);
92f4bf2c5d73 HTTP GET in Lua
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343
92f4bf2c5d73 HTTP GET in Lua
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344 // Push the value of the cell
92f4bf2c5d73 HTTP GET in Lua
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345 PushJson(value[i]);
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
346
92f4bf2c5d73 HTTP GET in Lua
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347 // Stores the pair in the table
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diff changeset
348 lua_rawset(lua_, -3);
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
349 }
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diff changeset
350 }
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351 else if (value.isObject())
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
352 {
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
353 lua_newtable(lua_);
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
354
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
355 Json::Value::Members members = value.getMemberNames();
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
356
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
357 for (Json::Value::Members::const_iterator
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
358 it = members.begin(); it != members.end(); ++it)
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
359 {
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
360 // Push the index of the cell
1465
905842836ad4 sample Lua script to write DICOM series to disk
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parents: 1448
diff changeset
361 lua_pushlstring(lua_, it->c_str(), it->size());
1051
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
362
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
363 // Push the value of the cell
92f4bf2c5d73 HTTP GET in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1002
diff changeset
364 PushJson(value[*it]);
92f4bf2c5d73 HTTP GET in Lua
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parents: 1002
diff changeset
365
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
366 // Stores the pair in the table
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
367 lua_rawset(lua_, -3);
92f4bf2c5d73 HTTP GET in Lua
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parents: 1002
diff changeset
368 }
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
369 }
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
370 else
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
371 {
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
372 throw LuaException("Unsupported JSON conversion");
92f4bf2c5d73 HTTP GET in Lua
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diff changeset
373 }
92f4bf2c5d73 HTTP GET in Lua
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parents: 1002
diff changeset
374 }
92f4bf2c5d73 HTTP GET in Lua
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parents: 1002
diff changeset
375
386
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
376
1448
3f7722179467 refactoring: GetJson in Lua
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diff changeset
377 void LuaContext::GetJson(Json::Value& result,
3f7722179467 refactoring: GetJson in Lua
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diff changeset
378 int top)
1447
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parents: 1438
diff changeset
379 {
1448
3f7722179467 refactoring: GetJson in Lua
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diff changeset
380 if (lua_istable(lua_, top))
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diff changeset
381 {
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diff changeset
382 Json::Value tmp = Json::objectValue;
3f7722179467 refactoring: GetJson in Lua
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diff changeset
383 bool isArray = true;
3f7722179467 refactoring: GetJson in Lua
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diff changeset
384 size_t size = 0;
1447
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diff changeset
385
1448
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diff changeset
386 // Code adapted from: http://stackoverflow.com/a/6142700/881731
3f7722179467 refactoring: GetJson in Lua
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parents: 1447
diff changeset
387
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diff changeset
388 // Push another reference to the table on top of the stack (so we know
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
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parents: 1438
diff changeset
389 // where it is, and this function can work for negative, positive and
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
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parents: 1438
diff changeset
390 // pseudo indices
1448
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diff changeset
391 lua_pushvalue(lua_, top);
1447
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parents: 1438
diff changeset
392 // stack now contains: -1 => table
1448
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diff changeset
393 lua_pushnil(lua_);
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parents: 1438
diff changeset
394 // stack now contains: -1 => nil; -2 => table
1448
3f7722179467 refactoring: GetJson in Lua
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parents: 1447
diff changeset
395 while (lua_next(lua_, -2))
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parents: 1438
diff changeset
396 {
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
397 // stack now contains: -1 => value; -2 => key; -3 => table
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
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parents: 1438
diff changeset
398 // copy the key so that lua_tostring does not modify the original
1448
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diff changeset
399 lua_pushvalue(lua_, -2);
1447
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parents: 1438
diff changeset
400 // stack now contains: -1 => key; -2 => value; -3 => key; -4 => table
1448
3f7722179467 refactoring: GetJson in Lua
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parents: 1447
diff changeset
401 std::string key(lua_tostring(lua_, -1));
3f7722179467 refactoring: GetJson in Lua
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parents: 1447
diff changeset
402 Json::Value v;
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
403 GetJson(v, -2);
1447
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
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parents: 1438
diff changeset
404
1448
3f7722179467 refactoring: GetJson in Lua
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parents: 1447
diff changeset
405 tmp[key] = v;
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
406
3f7722179467 refactoring: GetJson in Lua
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parents: 1447
diff changeset
407 size += 1;
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
408 try
1447
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
409 {
1448
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
410 if (boost::lexical_cast<size_t>(key) != size)
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
411 {
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
412 isArray = false;
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
413 }
1447
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
414 }
1448
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
415 catch (boost::bad_lexical_cast&)
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
416 {
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
417 isArray = false;
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
418 }
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
419
1447
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
420 // pop value + copy of key, leaving original key
1448
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
421 lua_pop(lua_, 2);
1447
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
422 // stack now contains: -1 => key; -2 => table
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
423 }
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
424 // stack now contains: -1 => table (when lua_next returns 0 it pops the key
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
425 // but does not push anything.)
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
426 // Pop table
1448
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
427 lua_pop(lua_, 1);
1447
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
428
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
429 // Stack is now the same as it was on entry to this function
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
430
1448
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
431 if (isArray)
1447
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
432 {
1448
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
433 result = Json::arrayValue;
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
434 for (size_t i = 0; i < size; i++)
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
435 {
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
436 result.append(tmp[boost::lexical_cast<std::string>(i + 1)]);
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
437 }
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
438 }
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
439 else
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
440 {
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
441 result = tmp;
1447
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
442 }
1448
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
443 }
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
444 else if (lua_isnil(lua_, top))
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
445 {
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
446 result = Json::nullValue;
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
447 }
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
448 else if (lua_isboolean(lua_, top))
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
449 {
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
450 result = lua_toboolean(lua_, top) ? true : false;
1447
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
451 }
1448
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
452 else if (lua_isnumber(lua_, top))
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
453 {
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
454 // Convert to "int" if truncation does not loose precision
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
455 double value = static_cast<double>(lua_tonumber(lua_, top));
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
456 int truncated = static_cast<int>(value);
1447
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
457
1448
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
458 if (std::abs(value - static_cast<double>(truncated)) <=
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
459 std::numeric_limits<double>::epsilon())
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
460 {
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
461 result = truncated;
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
462 }
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
463 else
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
464 {
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
465 result = value;
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
466 }
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
467 }
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
468 else if (lua_isstring(lua_, top))
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
469 {
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
470 // Caution: The "lua_isstring()" case must be the last, since
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
471 // Lua can convert most types to strings by default.
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
472 result = std::string(lua_tostring(lua_, top));
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
473 }
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
474 else
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
475 {
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
476 LOG(WARNING) << "Unsupported Lua type when returning Json";
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
477 result = Json::nullValue;
3f7722179467 refactoring: GetJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1447
diff changeset
478 }
1447
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
479 }
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
480
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
481
386
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
482 LuaContext::LuaContext()
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
483 {
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
484 lua_ = luaL_newstate();
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
485 if (!lua_)
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
486 {
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
487 throw LuaException("Unable to create the Lua context");
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
488 }
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
489
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
490 luaL_openlibs(lua_);
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
491 lua_register(lua_, "print", PrintToLog);
1447
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
492 lua_register(lua_, "ParseJson", ParseJson);
5ba7471780ae refactoring: HttpToolbox, DumpJson in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1438
diff changeset
493 lua_register(lua_, "DumpJson", DumpJson);
1051
92f4bf2c5d73 HTTP GET in Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1002
diff changeset
494 lua_register(lua_, "HttpGet", CallHttpGet);
1052
cc4ff680e2a0 http requests in lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1051
diff changeset
495 lua_register(lua_, "HttpPost", CallHttpPost);
cc4ff680e2a0 http requests in lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1051
diff changeset
496 lua_register(lua_, "HttpPut", CallHttpPut);
cc4ff680e2a0 http requests in lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1051
diff changeset
497 lua_register(lua_, "HttpDelete", CallHttpDelete);
1055
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
498 lua_register(lua_, "SetHttpCredentials", SetHttpCredentials);
1437
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
499
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
500 SetGlobalVariable("_LuaContext", this);
386
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
501 }
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
502
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
503
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
504 LuaContext::~LuaContext()
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
505 {
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
506 lua_close(lua_);
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
507 }
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
508
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
509
1055
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
510 void LuaContext::ExecuteInternal(std::string* output,
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
511 const std::string& command)
386
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
512 {
418
b79bf2f4ab2e execution of lua through REST
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 397
diff changeset
513 log_.clear();
386
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
514 int error = (luaL_loadbuffer(lua_, command.c_str(), command.size(), "line") ||
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
515 lua_pcall(lua_, 0, 0, 0));
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
516
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
517 if (error)
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
518 {
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
519 assert(lua_gettop(lua_) >= 1);
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
520
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
521 std::string description(lua_tostring(lua_, -1));
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
522 lua_pop(lua_, 1); /* pop error message from the stack */
1055
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
523 LOG(ERROR) << "Error while executing Lua script: " << description;
386
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
524 throw LuaException(description);
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
525 }
418
b79bf2f4ab2e execution of lua through REST
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 397
diff changeset
526
b79bf2f4ab2e execution of lua through REST
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 397
diff changeset
527 if (output != NULL)
b79bf2f4ab2e execution of lua through REST
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 397
diff changeset
528 {
b79bf2f4ab2e execution of lua through REST
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 397
diff changeset
529 *output = log_;
b79bf2f4ab2e execution of lua through REST
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 397
diff changeset
530 }
386
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
531 }
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
532
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
533
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
534 void LuaContext::Execute(EmbeddedResources::FileResourceId resource)
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
535 {
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
536 std::string command;
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
537 EmbeddedResources::GetFileResource(command, resource);
1055
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
538 ExecuteInternal(NULL, command);
386
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
539 }
397
941ea46e9e26 lua filter of new instances
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 386
diff changeset
540
941ea46e9e26 lua filter of new instances
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 386
diff changeset
541
941ea46e9e26 lua filter of new instances
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 386
diff changeset
542 bool LuaContext::IsExistingFunction(const char* name)
941ea46e9e26 lua filter of new instances
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 386
diff changeset
543 {
941ea46e9e26 lua filter of new instances
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 386
diff changeset
544 lua_settop(lua_, 0);
941ea46e9e26 lua filter of new instances
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 386
diff changeset
545 lua_getglobal(lua_, name);
941ea46e9e26 lua filter of new instances
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 386
diff changeset
546 return lua_type(lua_, -1) == LUA_TFUNCTION;
941ea46e9e26 lua filter of new instances
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 386
diff changeset
547 }
1055
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
548
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
549
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
550 void LuaContext::Execute(Json::Value& output,
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
551 const std::string& command)
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
552 {
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
553 std::string s;
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
554 ExecuteInternal(&s, command);
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
555
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
556 Json::Reader reader;
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
557 if (!reader.parse(s, output))
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
558 {
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
559 throw OrthancException(ErrorCode_BadFileFormat);
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
560 }
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
561 }
6f923d52a46c call Web services from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1052
diff changeset
562
1437
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
563
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
564 void LuaContext::RegisterFunction(const char* name,
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
565 lua_CFunction func)
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
566 {
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
567 lua_register(lua_, name, func);
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
568 }
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
569
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
570
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
571 void LuaContext::SetGlobalVariable(const char* name,
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
572 void* value)
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
573 {
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
574 lua_pushlightuserdata(lua_, value);
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
575 lua_setglobal(lua_, name);
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
576 }
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
577
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
578
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
579 const void* LuaContext::GetGlobalVariable(lua_State* state,
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
580 const char* name)
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
581 {
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
582 lua_getglobal(state, name);
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
583 assert(lua_type(state, -1) == LUA_TLIGHTUSERDATA);
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
584 const void* value = lua_topointer(state, -1);
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
585 lua_pop(state, 1);
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
586 return value;
02f5a3f5c0a0 access to the REST API from Lua
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
587 }
386
7dec4f3c922c lua wrapper
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
588 }