Mercurial > hg > orthanc
diff Core/RestApi/RestApi.cpp @ 209:9960642f0f45
abstraction of RestApi
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 28 Nov 2012 17:22:07 +0100 |
parents | |
children | 96b7918a6a18 |
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--- /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)); + } +}