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// HTTPConnection.h
// Declares the cHTTPConnection class representing a single persistent connection in the HTTP server.
#pragma once
#include "../OSSupport/Network.h"
#include "HTTPMessageParser.h"
// fwd:
class cHTTPServer;
class cHTTPOutgoingResponse;
class cHTTPIncomingRequest;
class cHTTPServerConnection : public cTCPLink::cCallbacks,
public cHTTPMessageParser::cCallbacks
{
public:
/** Creates a new instance, connected to the specified HTTP server instance */
cHTTPServerConnection(cHTTPServer & a_HTTPServer);
// Force a virtual destructor in all descendants
virtual ~cHTTPServerConnection() override;
/** Sends HTTP status code together with a_Reason (used for HTTP errors).
Sends the a_Reason as the body as well, so that browsers display it.
Clears the current request (since it's finished by this call). */
void SendStatusAndReason(int a_StatusCode, const AString & a_Reason);
/** Sends the "401 unauthorized" reply together with instructions on authorizing, using the specified realm.
Clears the current request (since it's finished by this call). */
void SendNeedAuth(const AString & a_Realm);
/** Sends the headers contained in a_Response */
void Send(const cHTTPOutgoingResponse & a_Response);
/** Sends the data as the response (may be called multiple times) */
void Send(const void * a_Data, size_t a_Size);
/** Sends the data as the response (may be called multiple times) */
void Send(const AString & a_Data) { Send(a_Data.data(), a_Data.size()); }
/** Indicates that the current response is finished, gets ready for receiving another request (HTTP 1.1 keepalive).
Clears the current request (since it's finished by this call). */
void FinishResponse(void);
/** Terminates the connection; finishes any request being currently processed */
void Terminate(void);
protected:
typedef std::map<AString, AString> cNameValueMap;
/** The parent webserver that is to be notified of events on this connection */
cHTTPServer & m_HTTPServer;
/** The parser responsible for reading the requests. */
cHTTPMessageParser m_Parser;
/** The request being currently received
Valid only between having parsed the headers and finishing receiving the body. */
std::unique_ptr<cHTTPIncomingRequest> m_CurrentRequest;
/** The network link attached to this connection. */
cTCPLinkPtr m_Link;
// cTCPLink::cCallbacks overrides:
/** The link instance has been created, remember it. */
virtual void OnLinkCreated(cTCPLinkPtr a_Link) override;
/** Data is received from the client. */
virtual void OnReceivedData(const char * a_Data, size_t a_Size) override;
/** The socket has been closed for any reason. */
virtual void OnRemoteClosed(void) override;
/** An error has occurred on the socket. */
virtual void OnError(int a_ErrorCode, const AString & a_ErrorMsg) override;
// cHTTPMessageParser::cCallbacks overrides:
virtual void OnError(const AString & a_ErrorDescription) override;
virtual void OnFirstLine(const AString & a_FirstLine) override;
virtual void OnHeaderLine(const AString & a_Key, const AString & a_Value) override;
virtual void OnHeadersFinished(void) override;
virtual void OnBodyData(const void * a_Data, size_t a_Size) override;
virtual void OnBodyFinished(void) override;
// Overridable:
/** Called to send raw data over the link. Descendants may provide data transformations (SSL etc.) */
virtual void SendData(const void * a_Data, size_t a_Size);
/** Sends the raw data over the link.
Descendants may provide data transformations (SSL etc.) via the overridable SendData() function. */
void SendData(const AString & a_Data) { SendData(a_Data.data(), a_Data.size()); }
};
typedef std::vector<cHTTPServerConnection *> cHTTPServerConnections;
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