--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancFramework/Sources/Lua/LuaContext.h	Wed Jun 10 20:30:34 2020 +0200
@@ -0,0 +1,150 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2020 Osimis S.A., Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * In addition, as a special exception, the copyright holders of this
+ * program give permission to link the code of its release with the
+ * OpenSSL project's "OpenSSL" library (or with modified versions of it
+ * that use the same license as the "OpenSSL" library), and distribute
+ * the linked executables. You must obey the GNU General Public License
+ * in all respects for all of the code used other than "OpenSSL". If you
+ * modify file(s) with this exception, you may extend this exception to
+ * your version of the file(s), but you are not obligated to do so. If
+ * you do not wish to do so, delete this exception statement from your
+ * version. If you delete this exception statement from all source files
+ * in the program, then also delete it here.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#pragma once
+
+// To have ORTHANC_ENABLE_LUA defined if using the shared library
+#include "../OrthancFramework.h"
+
+#if !defined(ORTHANC_ENABLE_LUA)
+#  error The macro ORTHANC_ENABLE_LUA must be defined
+#endif
+
+#if !defined(ORTHANC_ENABLE_CURL)
+#  error Macro ORTHANC_ENABLE_CURL must be defined
+#endif
+
+#if ORTHANC_ENABLE_LUA == 0
+#  error The Lua support is disabled, cannot include this file
+#endif
+
+#if ORTHANC_ENABLE_CURL == 1
+#  include "../HttpClient.h"
+#endif
+
+extern "C" 
+{
+#include <lua.h>
+}
+
+#include <boost/noncopyable.hpp>
+#include <json/value.h>
+
+namespace Orthanc
+{
+  class ORTHANC_PUBLIC LuaContext : public boost::noncopyable
+  {
+  private:
+    friend class LuaFunctionCall;
+
+    lua_State *lua_;
+    std::string log_;
+
+#if ORTHANC_ENABLE_CURL == 1
+    HttpClient httpClient_;
+#endif
+
+    static int PrintToLog(lua_State *state);
+    static int ParseJson(lua_State *state);
+    static int DumpJson(lua_State *state);
+
+#if ORTHANC_ENABLE_CURL == 1
+    static int SetHttpCredentials(lua_State *state);
+    static int CallHttpPostOrPut(lua_State *state,
+                                 HttpMethod method);
+    static int CallHttpGet(lua_State *state);
+    static int CallHttpPost(lua_State *state);
+    static int CallHttpPut(lua_State *state);
+    static int CallHttpDelete(lua_State *state);
+#endif
+
+    bool AnswerHttpQuery(lua_State* state);
+
+    void ExecuteInternal(std::string* output,
+                         const std::string& command);
+
+    static void GetJson(Json::Value& result,
+                        lua_State* state,
+                        int top,
+                        bool keepStrings);
+
+    void SetHttpHeaders(int top);
+    
+  public:
+    LuaContext();
+
+    ~LuaContext();
+
+    void Execute(const std::string& command)
+    {
+      ExecuteInternal(NULL, command);
+    }
+
+    void Execute(std::string& output,
+                 const std::string& command)
+    {
+      ExecuteInternal(&output, command);
+    }
+
+    void Execute(Json::Value& output,
+                 const std::string& command);
+
+    bool IsExistingFunction(const char* name);
+
+#if ORTHANC_ENABLE_CURL == 1
+    void SetHttpCredentials(const char* username,
+                            const char* password)
+    {
+      httpClient_.SetCredentials(username, password);
+    }
+#endif
+
+    void RegisterFunction(const char* name,
+                          lua_CFunction func);
+
+    void SetGlobalVariable(const char* name,
+                           void* value);
+
+    static LuaContext& GetLuaContext(lua_State *state);
+
+    static const void* GetGlobalVariable(lua_State* state,
+                                         const char* name);
+
+    void PushJson(const Json::Value& value);
+
+    static void GetDictionaryArgument(std::map<std::string, std::string>& target,
+                                      lua_State* state,
+                                      int top,
+                                      bool keyToLowerCase);
+  };
+}