Mercurial > hg > orthanc
view Core/RestApi/RestApiOutput.cpp @ 2040:6ea2e264ca50
retrieval of HTTP headers in answers within HttpClient
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 21 Jun 2016 16:34:30 +0200 |
parents | b1291df2f780 |
children | 9cf176bc21ad |
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/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital 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 "../PrecompiledHeaders.h" #include "RestApiOutput.h" #include "../Logging.h" #include "../OrthancException.h" #include <boost/lexical_cast.hpp> namespace Orthanc { RestApiOutput::RestApiOutput(HttpOutput& output, HttpMethod method) : output_(output), method_(method), convertJsonToXml_(false) { alreadySent_ = false; } RestApiOutput::~RestApiOutput() { } void RestApiOutput::Finalize() { if (!alreadySent_) { if (method_ == HttpMethod_Post) { output_.SendStatus(HttpStatus_400_BadRequest); } else { output_.SendStatus(HttpStatus_404_NotFound); } } } void RestApiOutput::CheckStatus() { if (alreadySent_) { throw OrthancException(ErrorCode_BadSequenceOfCalls); } } void RestApiOutput::AnswerStream(IHttpStreamAnswer& stream) { CheckStatus(); output_.Answer(stream); alreadySent_ = true; } void RestApiOutput::AnswerJson(const Json::Value& value) { CheckStatus(); if (convertJsonToXml_) { #if ORTHANC_PUGIXML_ENABLED == 1 std::string s; Toolbox::JsonToXml(s, value); output_.SetContentType("application/xml"); output_.Answer(s); #else LOG(ERROR) << "Orthanc was compiled without XML support"; throw OrthancException(ErrorCode_InternalError); #endif } else { Json::StyledWriter writer; output_.SetContentType("application/json"); output_.Answer(writer.write(value)); } alreadySent_ = true; } void RestApiOutput::AnswerBuffer(const std::string& buffer, const std::string& contentType) { AnswerBuffer(buffer.size() == 0 ? NULL : buffer.c_str(), buffer.size(), contentType); } void RestApiOutput::AnswerBuffer(const void* buffer, size_t length, const std::string& contentType) { CheckStatus(); output_.SetContentType(contentType.c_str()); output_.Answer(buffer, length); alreadySent_ = true; } void RestApiOutput::Redirect(const std::string& path) { CheckStatus(); output_.Redirect(path); alreadySent_ = true; } void RestApiOutput::SignalErrorInternal(HttpStatus status, const char* message, size_t messageSize) { if (status != HttpStatus_400_BadRequest && status != HttpStatus_403_Forbidden && status != HttpStatus_500_InternalServerError && status != HttpStatus_415_UnsupportedMediaType) { throw OrthancException(ErrorCode_BadHttpStatusInRest); } CheckStatus(); output_.SendStatus(status, message, messageSize); alreadySent_ = true; } void RestApiOutput::SignalError(HttpStatus status) { SignalErrorInternal(status, NULL, 0); } void RestApiOutput::SignalError(HttpStatus status, const std::string& message) { SignalErrorInternal(status, message.c_str(), message.size()); } void RestApiOutput::SetCookie(const std::string& name, const std::string& value, unsigned int maxAge) { if (name.find(";") != std::string::npos || name.find(" ") != std::string::npos || value.find(";") != std::string::npos || value.find(" ") != std::string::npos) { throw OrthancException(ErrorCode_NotImplemented); } CheckStatus(); std::string v = value + ";path=/"; if (maxAge != 0) { v += ";max-age=" + boost::lexical_cast<std::string>(maxAge); } output_.SetCookie(name, v); } void RestApiOutput::ResetCookie(const std::string& name) { // This marks the cookie to be deleted by the browser in 1 second, // and before it actually gets deleted, its value is set to the // empty string SetCookie(name, "", 1); } }