--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Core/RestApi/RestApi.cpp	Wed Nov 28 17:22:07 2012 +0100
@@ -0,0 +1,276 @@
+/**
+ * Orthanc - 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.
+ *
+ * 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 "RestApi.h"
+
+namespace Orthanc
+{
+  bool RestApi::IsGetAccepted(const UriComponents& uri)
+  {
+    for (GetHandlers::const_iterator it = getHandlers_.begin();
+         it != getHandlers_.end(); it++)
+    {
+      if (it->first->Match(uri))
+      {
+        return true;
+      }
+    }
+
+    return false;
+  }
+
+  bool RestApi::IsPutAccepted(const UriComponents& uri)
+  {
+    for (PutHandlers::const_iterator it = putHandlers_.begin();
+         it != putHandlers_.end(); it++)
+    {
+      if (it->first->Match(uri))
+      {
+        return true;
+      }
+    }
+
+    return false;
+  }
+
+  bool RestApi::IsPostAccepted(const UriComponents& uri)
+  {
+    for (PostHandlers::const_iterator it = postHandlers_.begin();
+         it != postHandlers_.end(); it++)
+    {
+      if (it->first->Match(uri))
+      {
+        return true;
+      }
+    }
+
+    return false;
+  }
+
+  bool RestApi::IsDeleteAccepted(const UriComponents& uri)
+  {
+    for (DeleteHandlers::const_iterator it = deleteHandlers_.begin();
+         it != deleteHandlers_.end(); it++)
+    {
+      if (it->first->Match(uri))
+      {
+        return true;
+      }
+    }
+
+    return false;
+  }
+
+  static void AddMethod(std::string& target,
+                        const std::string& method)
+  {
+    if (target.size() > 0)
+      target += "," + method;
+    else
+      target = method;
+  }
+
+  std::string  RestApi::GetAcceptedMethods(const UriComponents& uri)
+  {
+    std::string s;
+
+    if (IsGetAccepted(uri))
+      AddMethod(s, "GET");
+
+    if (IsPutAccepted(uri))
+      AddMethod(s, "PUT");
+
+    if (IsPostAccepted(uri))
+      AddMethod(s, "POST");
+
+    if (IsDeleteAccepted(uri))
+      AddMethod(s, "DELETE");
+
+    return s;
+  }
+
+  RestApi::~RestApi()
+  {
+    for (GetHandlers::iterator it = getHandlers_.begin(); 
+         it != getHandlers_.end(); it++)
+    {
+      delete it->first;
+    } 
+
+    for (PutHandlers::iterator it = putHandlers_.begin(); 
+         it != putHandlers_.end(); it++)
+    {
+      delete it->first;
+    } 
+
+    for (PostHandlers::iterator it = postHandlers_.begin(); 
+         it != postHandlers_.end(); it++)
+    {
+      delete it->first;
+    } 
+
+    for (DeleteHandlers::iterator it = deleteHandlers_.begin(); 
+         it != deleteHandlers_.end(); it++)
+    {
+      delete it->first;
+    } 
+  }
+
+  bool RestApi::IsServedUri(const UriComponents& uri)
+  {
+    return (IsGetAccepted(uri) ||
+            IsPutAccepted(uri) ||
+            IsPostAccepted(uri) ||
+            IsDeleteAccepted(uri));
+  }
+
+  void RestApi::Handle(HttpOutput& output,
+                       const std::string& method,
+                       const UriComponents& uri,
+                       const Arguments& headers,
+                       const Arguments& getArguments,
+                       const std::string& postData)
+  {
+    bool ok = false;
+    RestApiOutput restOutput(output);
+    RestApiPath::Components components;
+    UriComponents trailing;
+               
+    if (method == "GET")
+    {
+      for (GetHandlers::const_iterator it = getHandlers_.begin();
+           it != getHandlers_.end(); it++)
+      {
+        if (it->first->Match(components, trailing, uri))
+        {
+          ok = true;
+          GetCall call;
+          call.output_ = &restOutput;
+          call.context_ = context_.get();
+          call.httpHeaders_ = &headers;
+          call.uriComponents_ = &components;
+          call.trailing_ = &trailing;
+           
+          call.getArguments_ = &getArguments;
+          it->second(call);
+        }
+      }
+    }
+    else if (method == "PUT")
+    {
+      for (PutHandlers::const_iterator it = putHandlers_.begin();
+           it != putHandlers_.end(); it++)
+      {
+        if (it->first->Match(components, trailing, uri))
+        {
+          ok = true;
+          PutCall call;
+          call.output_ = &restOutput;
+          call.context_ = context_.get();
+          call.httpHeaders_ = &headers;
+          call.uriComponents_ = &components;
+          call.trailing_ = &trailing;
+           
+          call.data_ = &postData;
+          it->second(call);
+        }
+      }
+    }
+    else if (method == "POST")
+    {
+      for (PostHandlers::const_iterator it = postHandlers_.begin();
+           it != postHandlers_.end(); it++)
+      {
+        if (it->first->Match(components, trailing, uri))
+        {
+          ok = true;
+          PostCall call;
+          call.output_ = &restOutput;
+          call.context_ = context_.get();
+          call.httpHeaders_ = &headers;
+          call.uriComponents_ = &components;
+          call.trailing_ = &trailing;
+           
+          call.data_ = &postData;
+          it->second(call);
+        }
+      }
+    }
+    else if (method == "DELETE")
+    {
+      for (DeleteHandlers::const_iterator it = deleteHandlers_.begin();
+           it != deleteHandlers_.end(); it++)
+      {
+        if (it->first->Match(components, trailing, uri))
+        {
+          ok = true;
+          DeleteCall call;
+          call.output_ = &restOutput;
+          call.context_ = context_.get();
+          call.httpHeaders_ = &headers;
+          call.uriComponents_ = &components;
+          call.trailing_ = &trailing;
+          it->second(call);
+        }
+      }
+    }
+
+    if (!ok)
+    {
+      output.SendMethodNotAllowedError(GetAcceptedMethods(uri));
+    }
+  }
+
+  void RestApi::Register(const std::string& path,
+                         GetHandler handler)
+  {
+    getHandlers_.push_back(std::make_pair(new RestApiPath(path), handler));
+  }
+
+  void RestApi::Register(const std::string& path,
+                         PutHandler handler)
+  {
+    putHandlers_.push_back(std::make_pair(new RestApiPath(path), handler));
+  }
+
+  void RestApi::Register(const std::string& path,
+                         PostHandler handler)
+  {
+    postHandlers_.push_back(std::make_pair(new RestApiPath(path), handler));
+  }
+
+  void RestApi::Register(const std::string& path,
+                         DeleteHandler handler)
+  {
+    deleteHandlers_.push_back(std::make_pair(new RestApiPath(path), handler));
+  }
+}