--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancFramework/Sources/FileStorage/StorageAccessor.h	Wed Jun 10 20:30:34 2020 +0200
@@ -0,0 +1,155 @@
+/**
+ * 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
+
+#if !defined(ORTHANC_SANDBOXED)
+#  error The macro ORTHANC_SANDBOXED must be defined
+#endif
+
+#if ORTHANC_SANDBOXED == 1
+#  error The class StorageAccessor cannot be used in sandboxed environments
+#endif
+
+#if !defined(ORTHANC_ENABLE_CIVETWEB)
+#  error Macro ORTHANC_ENABLE_CIVETWEB must be defined to use this file
+#endif
+
+#if !defined(ORTHANC_ENABLE_MONGOOSE)
+#  error Macro ORTHANC_ENABLE_MONGOOSE must be defined to use this file
+#endif
+
+#include "IStorageArea.h"
+#include "FileInfo.h"
+
+#if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
+#  include "../HttpServer/BufferHttpSender.h"
+#  include "../RestApi/RestApiOutput.h"
+#endif
+
+#include <vector>
+#include <string>
+#include <boost/noncopyable.hpp>
+#include <stdint.h>
+
+namespace Orthanc
+{
+  class MetricsRegistry;
+
+  /**
+   * This class handles the compression/decompression of the raw files
+   * contained in the storage area, and monitors timing metrics (if
+   * enabled).
+   **/
+  class StorageAccessor : boost::noncopyable
+  {
+  private:
+    class MetricsTimer;
+
+    IStorageArea&     area_;
+    MetricsRegistry*  metrics_;
+
+#if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
+    void SetupSender(BufferHttpSender& sender,
+                     const FileInfo& info,
+                     const std::string& mime);
+#endif
+
+  public:
+    StorageAccessor(IStorageArea& area) : 
+      area_(area),
+      metrics_(NULL)
+    {
+    }
+
+    StorageAccessor(IStorageArea& area,
+                    MetricsRegistry& metrics) : 
+      area_(area),
+      metrics_(&metrics)
+    {
+    }
+
+    FileInfo Write(const void* data,
+                   size_t size,
+                   FileContentType type,
+                   CompressionType compression,
+                   bool storeMd5);
+
+    FileInfo Write(const std::string& data, 
+                   FileContentType type,
+                   CompressionType compression,
+                   bool storeMd5)
+    {
+      return Write((data.size() == 0 ? NULL : data.c_str()),
+                   data.size(), type, compression, storeMd5);
+    }
+
+    void Read(std::string& content,
+              const FileInfo& info);
+
+    void ReadRaw(std::string& content,
+                 const FileInfo& info);
+
+    void Remove(const std::string& fileUuid,
+                FileContentType type);
+
+    void Remove(const FileInfo& info)
+    {
+      Remove(info.GetUuid(), info.GetContentType());
+    }
+
+#if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
+    void AnswerFile(HttpOutput& output,
+                    const FileInfo& info,
+                    MimeType mime)
+    {
+      AnswerFile(output, info, EnumerationToString(mime));
+    }
+
+    void AnswerFile(HttpOutput& output,
+                    const FileInfo& info,
+                    const std::string& mime);
+
+    void AnswerFile(RestApiOutput& output,
+                    const FileInfo& info,
+                    MimeType mime)
+    {
+      AnswerFile(output, info, EnumerationToString(mime));
+    }
+
+    void AnswerFile(RestApiOutput& output,
+                    const FileInfo& info,
+                    const std::string& mime);
+#endif
+  };
+}