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// HTTPServer.cpp
// Implements the cHTTPServer class representing a HTTP webserver that uses cListenThread and cSocketThreads for processing
#include "Globals.h"
#include "HTTPServer.h"
#include "HTTPMessage.h"
// Disable MSVC warnings:
#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable:4355) // 'this' : used in base member initializer list
#endif
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// cHTTPConnection:
cHTTPConnection::cHTTPConnection(cHTTPServer & a_HTTPServer) :
m_HTTPServer(a_HTTPServer),
m_State(wcsRecvHeaders),
m_CurrentRequest(NULL)
{
}
void cHTTPConnection::SendStatusAndReason(int a_StatusCode, const AString & a_Response)
{
AppendPrintf(m_OutgoingData, "%d %s\r\n\r\n", a_StatusCode, a_Response.c_str());
}
void cHTTPConnection::Send(const cHTTPResponse & a_Response)
{
ASSERT(m_State = wcsRecvIdle);
a_Response.AppendToData(m_OutgoingData);
m_State = wcsSendingResp;
}
void cHTTPConnection::Send(const void * a_Data, int a_Size)
{
ASSERT(m_State == wcsSendingResp);
AppendPrintf(m_OutgoingData, "%x\r\n", a_Size);
m_OutgoingData.append((const char *)a_Data, a_Size);
}
void cHTTPConnection::FinishResponse(void)
{
ASSERT(m_State == wcsSendingResp);
m_OutgoingData.append("0\r\n");
m_State = wcsRecvHeaders;
}
void cHTTPConnection::DataReceived(const char * a_Data, int a_Size)
{
switch (m_State)
{
case wcsRecvHeaders:
{
ASSERT(m_CurrentRequest == NULL);
// Start searching 3 chars from the end of the already received data, if available:
size_t SearchStart = m_IncomingHeaderData.size();
SearchStart = (SearchStart > 3) ? SearchStart - 3 : 0;
m_IncomingHeaderData.append(a_Data, a_Size);
// Parse the header, if it is complete:
size_t idxEnd = m_IncomingHeaderData.find("\r\n\r\n", SearchStart);
if (idxEnd == AString::npos)
{
return;
}
m_CurrentRequest = new cHTTPRequest;
if (!m_CurrentRequest->ParseHeaders(m_IncomingHeaderData.c_str(), idxEnd + 2))
{
delete m_CurrentRequest;
m_CurrentRequest = NULL;
m_State = wcsInvalid;
m_HTTPServer.CloseConnection(*this);
return;
}
m_State = wcsRecvBody;
m_HTTPServer.NewRequest(*this, *m_CurrentRequest);
// Process the rest of the incoming data into the request body:
if (m_IncomingHeaderData.size() > idxEnd + 4)
{
m_IncomingHeaderData.erase(0, idxEnd + 4);
DataReceived(m_IncomingHeaderData.c_str(), m_IncomingHeaderData.size());
}
break;
}
case wcsRecvBody:
{
ASSERT(m_CurrentRequest != NULL);
// TODO: Receive the body, and the next request (If HTTP/1.1 keepalive)
break;
}
default:
{
// TODO: Should we be receiving data in this state?
break;
}
}
}
void cHTTPConnection::GetOutgoingData(AString & a_Data)
{
std::swap(a_Data, m_OutgoingData);
}
void cHTTPConnection::SocketClosed(void)
{
if (m_CurrentRequest != NULL)
{
m_HTTPServer.RequestFinished(*this, *m_CurrentRequest);
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// cHTTPServer:
cHTTPServer::cHTTPServer(void) :
m_ListenThreadIPv4(*this, cSocket::IPv4, "WebServer IPv4"),
m_ListenThreadIPv6(*this, cSocket::IPv6, "WebServer IPv6"),
m_SocketThreads()
{
}
bool cHTTPServer::Initialize(cIniFile & a_IniFile)
{
if (!a_IniFile.GetValueSetB("WebAdmin", "Enabled", false))
{
// The WebAdmin is disabled
return true;
}
bool HasAnyPort;
HasAnyPort = m_ListenThreadIPv4.Initialize(a_IniFile.GetValueSet("WebAdmin", "Port", "8081"));
HasAnyPort = m_ListenThreadIPv6.Initialize(a_IniFile.GetValueSet("WebAdmin", "PortsIPv6", "8082, 3300")) || HasAnyPort;
if (!HasAnyPort)
{
LOG("WebAdmin is disabled");
return false;
}
if (!m_ListenThreadIPv4.Start())
{
return false;
}
if (!m_ListenThreadIPv6.Start())
{
m_ListenThreadIPv4.Stop();
return false;
}
return true;
}
void cHTTPServer::OnConnectionAccepted(cSocket & a_Socket)
{
cHTTPConnection * Connection = new cHTTPConnection(*this);
m_SocketThreads.AddClient(a_Socket, Connection);
cCSLock Lock(m_CSConnections);
m_Connections.push_back(Connection);
}
void cHTTPServer::CloseConnection(cHTTPConnection & a_Connection)
{
m_SocketThreads.RemoveClient(&a_Connection);
cCSLock Lock(m_CSConnections);
for (cHTTPConnections::iterator itr = m_Connections.begin(), end = m_Connections.end(); itr != end; ++itr)
{
if (*itr == &a_Connection)
{
m_Connections.erase(itr);
break;
}
}
}
void cHTTPServer::NewRequest(cHTTPConnection & a_Connection, cHTTPRequest & a_Request)
{
// TODO
}
void cHTTPServer::RequestBody(cHTTPConnection & a_Connection, cHTTPRequest & a_Request)
{
// TODO
}
void cHTTPServer::RequestFinished(cHTTPConnection & a_Connection, cHTTPRequest & a_Request)
{
// TODO
// DEBUG: Send a debug response:
cHTTPResponse Resp;
Resp.SetContentType("text/plain");
a_Connection.Send(Resp);
a_Connection.Send("Hello");
a_Connection.FinishResponse();
}
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