--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancStone/Sources/Deprecated/Toolbox/IWebService.h	Tue Jul 07 16:21:02 2020 +0200
@@ -0,0 +1,213 @@
+/**
+ * Stone of Orthanc
+ * 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 Affero General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * 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
+ * Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#pragma once
+
+#include "../../Messages/IObserver.h"
+#include "../../Messages/ICallable.h"
+
+#include <Enumerations.h>
+#include <IDynamicObject.h>
+#include <Logging.h>
+
+#include <string>
+#include <map>
+
+namespace Deprecated
+{
+  template <typename TMessage>
+  class MessageHandler : public OrthancStone::ICallable
+  {
+  };
+
+
+  template <typename TObserver,
+            typename TMessage>
+  class DeprecatedCallable : public MessageHandler<TMessage>
+  {
+  private:
+    typedef void (TObserver::* MemberMethod) (const TMessage&);
+
+    boost::weak_ptr<OrthancStone::IObserver>  observer_;
+    MemberMethod                function_;
+
+  public:
+    DeprecatedCallable(boost::shared_ptr<TObserver> observer,
+                       MemberMethod function) :
+      observer_(observer),
+      function_(function)
+    {
+    }
+
+    virtual void Apply(const OrthancStone::IMessage& message)
+    {
+      boost::shared_ptr<OrthancStone::IObserver> lock(observer_);
+      if (lock)
+      {
+        TObserver& observer = dynamic_cast<TObserver&>(*lock);
+        const TMessage& typedMessage = dynamic_cast<const TMessage&>(message);
+        (observer.*function_) (typedMessage);
+      }
+    }
+
+    virtual const OrthancStone::MessageIdentifier& GetMessageIdentifier()
+    {
+      return TMessage::GetStaticIdentifier();
+    }
+
+    virtual boost::weak_ptr<OrthancStone::IObserver> GetObserver() const
+    {
+      return observer_;
+    }
+  };
+
+
+  // The IWebService performs HTTP requests.
+  // Since applications can run in native or WASM environment and, since
+  // in a WASM environment, the WebService is asynchronous, the IWebservice
+  // also implements an asynchronous interface: you must schedule a request
+  // and you'll be notified when the response/error is ready.
+  class IWebService : public boost::noncopyable
+  {
+  public:
+    typedef std::map<std::string, std::string> HttpHeaders;
+
+    class HttpRequestSuccessMessage : public OrthancStone::IMessage
+    {
+      ORTHANC_STONE_MESSAGE(__FILE__, __LINE__);
+
+    private:
+      const std::string&             uri_;
+      const void*                    answer_;
+      size_t                         answerSize_;
+      const HttpHeaders&             answerHeaders_;
+      const Orthanc::IDynamicObject* payload_;
+
+    public:
+      HttpRequestSuccessMessage(const std::string& uri,
+                                const void* answer,
+                                size_t answerSize,
+                                const HttpHeaders& answerHeaders,
+                                const Orthanc::IDynamicObject* payload) :
+        uri_(uri),
+        answer_(answer),
+        answerSize_(answerSize),
+        answerHeaders_(answerHeaders),
+        payload_(payload)
+      {
+      }
+
+      const std::string& GetUri() const
+      {
+        return uri_;
+      }
+
+      const void* GetAnswer() const
+      {
+        return answer_;
+      }
+
+      size_t GetAnswerSize() const
+      {
+        return answerSize_;
+      }
+
+      const HttpHeaders&  GetAnswerHttpHeaders() const
+      {
+        return answerHeaders_;
+      }
+
+      bool HasPayload() const
+      {
+        return payload_ != NULL;
+      }
+
+      const Orthanc::IDynamicObject& GetPayload() const;
+    };
+    
+
+    class HttpRequestErrorMessage : public OrthancStone::IMessage
+    {
+      ORTHANC_STONE_MESSAGE(__FILE__, __LINE__);
+
+    private:
+      const std::string&              uri_;
+      const Orthanc::IDynamicObject*  payload_;
+      Orthanc::HttpStatus             httpStatus_;
+
+    public:
+      HttpRequestErrorMessage(const std::string& uri,
+                              Orthanc::HttpStatus httpStatus,
+                              const Orthanc::IDynamicObject* payload) :
+        uri_(uri),
+        payload_(payload),
+        httpStatus_(httpStatus)
+      {
+      }
+
+      const std::string& GetUri() const
+      {
+        return uri_;
+      }
+
+      Orthanc::HttpStatus GetHttpStatus() const
+      {
+        return httpStatus_;
+      }
+
+      bool HasPayload() const
+      {
+        return payload_ != NULL;
+      }
+
+      const Orthanc::IDynamicObject& GetPayload() const;
+    };
+
+
+    virtual ~IWebService()
+    {
+    }
+
+    virtual void EnableCache(bool enable) = 0;
+    
+    virtual void GetAsync(const std::string& uri,
+                          const HttpHeaders& headers,
+                          Orthanc::IDynamicObject* payload  /* takes ownership */,
+                          MessageHandler<IWebService::HttpRequestSuccessMessage>* successCallback,
+                          MessageHandler<IWebService::HttpRequestErrorMessage>* failureCallback = NULL,
+                          unsigned int timeoutInSeconds = 60) = 0;
+
+    virtual void PostAsync(const std::string& uri,
+                           const HttpHeaders& headers,
+                           const std::string& body,
+                           Orthanc::IDynamicObject* payload  /* takes ownership */,
+                           MessageHandler<IWebService::HttpRequestSuccessMessage>* successCallback,
+                           MessageHandler<IWebService::HttpRequestErrorMessage>* failureCallback = NULL,
+                           unsigned int timeoutInSeconds = 60) = 0;
+
+    virtual void DeleteAsync(const std::string& uri,
+                             const HttpHeaders& headers,
+                             Orthanc::IDynamicObject* payload  /* takes ownership */,
+                             MessageHandler<IWebService::HttpRequestSuccessMessage>* successCallback,
+                             MessageHandler<IWebService::HttpRequestErrorMessage>* failureCallback = NULL,
+                             unsigned int timeoutInSeconds = 60) = 0;
+  };
+}