Mercurial > hg > orthanc

diff Core/HttpServer/FilesystemHttpHandler.cpp @ 0:3959d33612cc

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initial commit
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 19 Jul 2012 14:32:22 +0200
parents
children 9be852ad33d2
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Core/HttpServer/FilesystemHttpHandler.cpp	Thu Jul 19 14:32:22 2012 +0200
@@ -0,0 +1,142 @@
+/**
+ * Palantir - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012 Medical Physics Department, CHU of Liege,
+ * 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.
+ * 
+ * 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 "FilesystemHttpHandler.h"
+
+#include "../PalantirException.h"
+
+#include <boost/filesystem.hpp>
+
+
+namespace Palantir
+{
+  struct FilesystemHttpHandler::PImpl
+  {
+    UriComponents baseUri_;
+    boost::filesystem::path root_;
+  };
+
+
+
+  static void OutputDirectoryContent(HttpOutput& output,
+                                     const UriComponents& uri,
+                                     const boost::filesystem::path& p)
+  {
+    namespace fs = boost::filesystem;
+
+    output.SendOkHeader("text/html");
+    output.SendString("<html>");
+    output.SendString("  <body>");
+    output.SendString("    <h1>Subdirectories</h1>");
+    output.SendString("    <ul>");
+
+    if (uri.size() > 0)
+    {
+      std::string h = Toolbox::FlattenUri(uri) + "/..";
+      output.SendString("<li><a href=\"" + h + "\">..</a></li>");
+    }
+
+    fs::directory_iterator end;
+    for (fs::directory_iterator it(p) ; it != end; ++it)
+    {
+      std::string f = it->path().filename().string();
+      std::string h = Toolbox::FlattenUri(uri) + "/" + f;
+      if (fs::is_directory(it->status()))
+        output.SendString("<li><a href=\"" + h + "\">" + f + "</a></li>");
+    }      
+
+    output.SendString("    </ul>");      
+    output.SendString("    <h1>Files</h1>");
+    output.SendString("    <ul>");
+
+    for (fs::directory_iterator it(p) ; it != end; ++it)
+    {
+      std::string f = it->path().filename().string();
+      std::string h = Toolbox::FlattenUri(uri) + "/" + f;
+      if (fs::is_regular_file(it->status()))
+        output.SendString("<li><a href=\"" + h + "\">" + f + "</a></li>");
+    }      
+
+    output.SendString("    </ul>");
+    output.SendString("  </body>");
+    output.SendString("</html>");
+  }
+
+
+  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 PalantirException("The path does not point to a directory");
+    }
+  }
+
+
+  bool FilesystemHttpHandler::IsServedUri(const UriComponents& uri)
+  {
+    return Toolbox::IsChildUri(pimpl_->baseUri_, uri);
+  }
+
+
+  void FilesystemHttpHandler::Handle(
+    HttpOutput& output,
+    const std::string& method,
+    const UriComponents& uri,
+    const Arguments& headers,
+    const Arguments& arguments,
+    const std::string&)
+  {
+    if (method != "GET")
+    {
+      output.SendMethodNotAllowedError("GET");
+      return;
+    }
+
+    namespace fs = boost::filesystem;
+
+    fs::path p = pimpl_->root_;
+    for (size_t i = pimpl_->baseUri_.size(); i < uri.size(); i++)
+    {
+      p /= uri[i];
+    }
+
+    if (fs::exists(p) && fs::is_regular_file(p))
+    {
+      output.AnswerFileAutodetectContentType(p.string());
+    }
+    else if (listDirectoryContent_ &&
+             fs::exists(p) && 
+             fs::is_directory(p))
+    {
+      OutputDirectoryContent(output, uri, p);
+    }
+    else
+    {
+      output.SendHeader(HttpStatus_404_NotFound);
+    }
+  } 
+}