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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 "HTTPMessageParser.h"
#include "HTTPServerConnection.h"
#include "HTTPFormParser.h"
#include "SslHTTPServerConnection.h"
// Disable MSVC warnings:
#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable:4355) // 'this' : used in base member initializer list
#endif
////////////////////////////////////////////////////////////////////////////////
// cHTTPServerListenCallbacks:
class cHTTPServerListenCallbacks:
public cNetwork::cListenCallbacks
{
public:
cHTTPServerListenCallbacks(cHTTPServer & a_HTTPServer, UInt16 a_Port):
m_HTTPServer(a_HTTPServer),
m_Port(a_Port)
{
}
protected:
/** The HTTP server instance that we're attached to. */
cHTTPServer & m_HTTPServer;
/** The port for which this instance is responsible. */
UInt16 m_Port;
// cNetwork::cListenCallbacks overrides:
virtual cTCPLink::cCallbacksPtr OnIncomingConnection(const AString & a_RemoteIPAddress, UInt16 a_RemotePort) override
{
return m_HTTPServer.OnIncomingConnection(a_RemoteIPAddress, a_RemotePort);
}
virtual void OnAccepted(cTCPLink & a_Link) override {}
virtual void OnError(int a_ErrorCode, const AString & a_ErrorMsg) override
{
LOGWARNING("HTTP server error on port %d: %d (%s)", m_Port, a_ErrorCode, a_ErrorMsg.c_str());
}
};
////////////////////////////////////////////////////////////////////////////////
// cHTTPServer:
cHTTPServer::cHTTPServer(void) :
m_Callbacks(nullptr)
{
}
cHTTPServer::~cHTTPServer()
{
Stop();
}
bool cHTTPServer::Initialize(void)
{
// Read the HTTPS cert + key:
AString CertFile = cFile::ReadWholeFile("webadmin/httpscert.crt");
AString KeyFile = cFile::ReadWholeFile("webadmin/httpskey.pem");
if (!CertFile.empty() && !KeyFile.empty())
{
m_Cert.reset(new cX509Cert);
int res = m_Cert->Parse(CertFile.data(), CertFile.size());
if (res == 0)
{
m_CertPrivKey.reset(new cCryptoKey);
int res2 = m_CertPrivKey->ParsePrivate(KeyFile.data(), KeyFile.size(), "");
if (res2 != 0)
{
// Reading the private key failed, reset the cert:
LOGWARNING("WebServer: Cannot read HTTPS certificate private key: -0x%x", -res2);
m_Cert.reset();
}
}
else
{
LOGWARNING("WebServer: Cannot read HTTPS certificate: -0x%x", -res);
}
}
// Notify the admin about the HTTPS / HTTP status
if (m_Cert.get() == nullptr)
{
LOGWARNING("WebServer: The server will run in unsecured HTTP mode.");
LOGINFO("Put a valid HTTPS certificate in file 'webadmin/httpscert.crt' and its corresponding private key to 'webadmin/httpskey.pem' (without any password) to enable HTTPS support");
}
else
{
LOGINFO("WebServer: The server will run in secure HTTPS mode.");
}
return true;
}
bool cHTTPServer::Start(cCallbacks & a_Callbacks, const AStringVector & a_Ports)
{
m_Callbacks = &a_Callbacks;
// Open up requested ports:
AStringVector ports;
for (auto port : a_Ports)
{
UInt16 PortNum;
if (!StringToInteger(port, PortNum))
{
LOGWARNING("WebServer: Invalid port value: \"%s\". Ignoring.", port.c_str());
continue;
}
auto Handle = cNetwork::Listen(PortNum, std::make_shared<cHTTPServerListenCallbacks>(*this, PortNum));
if (Handle->IsListening())
{
m_ServerHandles.push_back(Handle);
ports.push_back(port);
}
} // for port - a_Ports[]
// Inform the admin about the ports opened:
AString reportPorts;
for (const auto & port: ports)
{
if (!reportPorts.empty())
{
reportPorts.append(", ");
}
reportPorts.append(port);
}
LOGINFO("WebAdmin is running on port(s) %s", reportPorts.c_str());
// Report success if at least one port opened successfully:
return !m_ServerHandles.empty();
}
void cHTTPServer::Stop(void)
{
for (auto handle : m_ServerHandles)
{
handle->Close();
}
m_ServerHandles.clear();
}
cTCPLink::cCallbacksPtr cHTTPServer::OnIncomingConnection(const AString & a_RemoteIPAddress, UInt16 a_RemotePort)
{
UNUSED(a_RemoteIPAddress);
UNUSED(a_RemotePort);
if (m_Cert.get() != nullptr)
{
return std::make_shared<cSslHTTPServerConnection>(*this, m_Cert, m_CertPrivKey);
}
else
{
return std::make_shared<cHTTPServerConnection>(*this);
}
}
void cHTTPServer::NewRequest(cHTTPServerConnection & a_Connection, cHTTPIncomingRequest & a_Request)
{
m_Callbacks->OnRequestBegun(a_Connection, a_Request);
}
void cHTTPServer::RequestBody(cHTTPServerConnection & a_Connection, cHTTPIncomingRequest & a_Request, const void * a_Data, size_t a_Size)
{
m_Callbacks->OnRequestBody(a_Connection, a_Request, reinterpret_cast<const char *>(a_Data), a_Size);
}
void cHTTPServer::RequestFinished(cHTTPServerConnection & a_Connection, cHTTPIncomingRequest & a_Request)
{
m_Callbacks->OnRequestFinished(a_Connection, a_Request);
}
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