icinga2/lib/remote/httpresponse.cpp

108 lines
3.6 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2015 Icinga Development Team (http://www.icinga.org) *
* *
* 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 2 *
* 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, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "remote/httpresponse.hpp"
#include "remote/httpchunkedencoding.hpp"
#include "base/logger.hpp"
#include "base/application.hpp"
#include "base/convert.hpp"
using namespace icinga;
HttpResponse::HttpResponse(const Stream::Ptr& stream, const HttpRequest& request)
: m_State(HttpResponseStart), m_Request(request), m_Stream(stream)
{ }
void HttpResponse::SetStatus(int code, const String& message)
{
ASSERT(m_State == HttpResponseStart);
ASSERT(code >= 100 && code <= 599);
ASSERT(!message.IsEmpty());
String status = "HTTP/";
if (m_Request.ProtocolVersion == HttpVersion10)
status += "1.0";
else
status += "1.1";
status += " " + Convert::ToString(code) + " " + message + "\r\n";
m_Stream->Write(status.CStr(), status.GetLength());
m_State = HttpResponseHeaders;
}
void HttpResponse::AddHeader(const String& key, const String& value)
{
ASSERT(m_State = HttpResponseHeaders);
String header = key + ": " + value + "\r\n";
m_Stream->Write(header.CStr(), header.GetLength());
}
void HttpResponse::FinishHeaders(void)
{
if (m_State == HttpResponseHeaders) {
if (m_Request.ProtocolVersion == HttpVersion11)
AddHeader("Transfer-Encoding", "chunked");
AddHeader("Server", "Icinga/" + Application::GetVersion());
m_Stream->Write("\r\n", 2);
m_State = HttpResponseBody;
}
}
void HttpResponse::WriteBody(const char *data, size_t count)
{
ASSERT(m_State == HttpResponseHeaders || m_State == HttpResponseBody);
if (m_Request.ProtocolVersion == HttpVersion10) {
if (!m_Body)
m_Body = new FIFO();
m_Body->Write(data, count);
} else {
FinishHeaders();
HttpChunkedEncoding::WriteChunkToStream(m_Stream, data, count);
}
}
void HttpResponse::Finish(void)
{
if (m_Request.ProtocolVersion == HttpVersion10) {
if (m_Body)
AddHeader("Content-Length", Convert::ToString(m_Body->GetAvailableBytes()));
FinishHeaders();
while (m_Body && m_Body->IsDataAvailable()) {
char buffer[1024];
size_t rc = m_Body->Read(buffer, sizeof(buffer), true);
m_Stream->Write(buffer, rc);
}
} else {
WriteBody(NULL, 0);
m_Stream->Write("\r\n", 2);
}
if (m_Request.ProtocolVersion == HttpVersion10 || m_Request.Headers->Get("connection") == "close")
m_Stream->Shutdown();
}