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diff OrthancFramework/Sources/HttpServer/FilesystemHttpHandler.cpp @ 4044:d25f4c0fa160 framework

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splitting code into OrthancFramework and OrthancServer
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 10 Jun 2020 20:30:34 +0200
parents Core/HttpServer/FilesystemHttpHandler.cpp@94f4a18a79cc
children bf7b9edf6b81
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancFramework/Sources/HttpServer/FilesystemHttpHandler.cpp	Wed Jun 10 20:30:34 2020 +0200
@@ -0,0 +1,182 @@
+/**
+ * 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/>.
+ **/
+
+
+#include "../PrecompiledHeaders.h"
+#include "FilesystemHttpHandler.h"
+
+#include "../OrthancException.h"
+#include "../SystemToolbox.h"
+#include "FilesystemHttpSender.h"
+
+#include <boost/filesystem.hpp>
+
+
+namespace Orthanc
+{
+  struct FilesystemHttpHandler::PImpl
+  {
+    UriComponents baseUri_;
+    boost::filesystem::path root_;
+  };
+
+
+
+  static void OutputDirectoryContent(HttpOutput& output,
+                                     const IHttpHandler::Arguments& headers,
+                                     const UriComponents& uri,
+                                     const boost::filesystem::path& p)
+  {
+    namespace fs = boost::filesystem;
+
+    std::string s;
+    s += "<html>";
+    s += "  <body>";
+    s += "    <h1>Subdirectories</h1>";
+    s += "    <ul>";
+
+    if (uri.size() > 0)
+    {
+      std::string h = Toolbox::FlattenUri(uri) + "/..";
+      s += "<li><a href=\"" + h + "\">..</a></li>";
+    }
+
+    fs::directory_iterator end;
+    for (fs::directory_iterator it(p) ; it != end; ++it)
+    {
+#if BOOST_HAS_FILESYSTEM_V3 == 1
+      std::string f = it->path().filename().string();
+#else
+      std::string f = it->path().filename();
+#endif
+
+      std::string h = Toolbox::FlattenUri(uri) + "/" + f;
+      if (fs::is_directory(it->status()))
+        s += "<li><a href=\"" + h + "\">" + f + "</a></li>";
+    }      
+
+    s += "    </ul>";      
+    s += "    <h1>Files</h1>";
+    s += "    <ul>";
+
+    for (fs::directory_iterator it(p) ; it != end; ++it)
+    {
+#if BOOST_HAS_FILESYSTEM_V3 == 1
+      std::string f = it->path().filename().string();
+#else
+      std::string f = it->path().filename();
+#endif
+
+      std::string h = Toolbox::FlattenUri(uri) + "/" + f;
+      if (SystemToolbox::IsRegularFile(it->path().string()))
+      {
+        s += "<li><a href=\"" + h + "\">" + f + "</a></li>";
+      }
+    }      
+
+    s += "    </ul>";
+    s += "  </body>";
+    s += "</html>";
+
+    output.SetContentType(MimeType_Html);
+    output.Answer(s);
+  }
+
+
+  FilesystemHttpHandler::FilesystemHttpHandler(const std::string& baseUri,
+                                               const std::string& root) : pimpl_(new PImpl)
+  {
+    Toolbox::SplitUriComponents(pimpl_->baseUri_, baseUri);
+    pimpl_->root_ = root;
+    listDirectoryContent_ = false;
+    
+    namespace fs = boost::filesystem;
+    if (!fs::exists(pimpl_->root_) || 
+        !fs::is_directory(pimpl_->root_))
+    {
+      throw OrthancException(ErrorCode_DirectoryExpected);
+    }
+  }
+
+
+  bool FilesystemHttpHandler::Handle(
+    HttpOutput& output,
+    RequestOrigin /*origin*/,
+    const char* /*remoteIp*/,
+    const char* /*username*/,
+    HttpMethod method,
+    const UriComponents& uri,
+    const Arguments& headers,
+    const GetArguments& arguments,
+    const void* /*bodyData*/,
+    size_t /*bodySize*/)
+  {
+    if (!Toolbox::IsChildUri(pimpl_->baseUri_, uri))
+    {
+      // This URI is not served by this handler
+      return false;
+    }
+
+    if (method != HttpMethod_Get)
+    {
+      output.SendMethodNotAllowed("GET");
+      return true;
+    }
+
+    namespace fs = boost::filesystem;
+
+    fs::path p = pimpl_->root_;
+    for (size_t i = pimpl_->baseUri_.size(); i < uri.size(); i++)
+    {
+      p /= uri[i];
+    }
+
+    if (SystemToolbox::IsRegularFile(p.string()))
+    {
+      FilesystemHttpSender sender(p);
+      sender.SetContentType(SystemToolbox::AutodetectMimeType(p.string()));
+      output.Answer(sender);   // TODO COMPRESSION
+    }
+    else if (listDirectoryContent_ &&
+             fs::exists(p) && 
+             fs::is_directory(p))
+    {
+      OutputDirectoryContent(output, headers, uri, p);
+    }
+    else
+    {
+      output.SendStatus(HttpStatus_404_NotFound);
+    }
+
+    return true;
+  } 
+}