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-rw-r--r--source/HTTPServer/HTTPServer.h135
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diff --git a/source/HTTPServer/HTTPServer.h b/source/HTTPServer/HTTPServer.h
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+
+// HTTPServer.h
+
+// Declares the cHTTPServer class representing a HTTP webserver that uses cListenThread and cSocketThreads for processing
+
+
+
+
+
+#pragma once
+
+#include "../OSSupport/ListenThread.h"
+#include "../OSSupport/SocketThreads.h"
+#include "../../iniFile/iniFile.h"
+
+
+
+
+
+// fwd:
+class cHTTPServer;
+class cHTTPMessage;
+class cHTTPRequest;
+class cHTTPResponse;
+
+
+
+
+
+class cHTTPConnection :
+ public cSocketThreads::cCallback
+{
+public:
+
+ enum eState
+ {
+ wcsRecvHeaders, ///< Receiving request headers (m_CurrentRequest == NULL)
+ wcsRecvBody, ///< Receiving request body (m_CurrentRequest is valid)
+ wcsRecvIdle, ///< Has received the entire body, waiting to send the response (m_CurrentRequest == NULL)
+ wcsSendingResp, ///< Sending response body (m_CurrentRequest == NULL)
+ wcsInvalid, ///< The request was malformed, the connection is closing
+ } ;
+
+ cHTTPConnection(cHTTPServer & a_HTTPServer);
+
+ /// Sends HTTP status code together with a_Reason (used for HTTP errors)
+ void SendStatusAndReason(int a_StatusCode, const AString & a_Reason);
+
+ /// Sends the headers contained in a_Response
+ void Send(const cHTTPResponse & a_Response);
+
+ /// Sends the data as the response (may be called multiple times)
+ void Send(const void * a_Data, int 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()); }
+
+ /// Finishes sending current response, gets ready for receiving another request (HTTP 1.1 keepalive)
+ void FinishResponse(void);
+
+protected:
+ typedef std::map<AString, AString> cNameValueMap;
+
+ /// The parent webserver that is to be notified of events on this connection
+ cHTTPServer & m_HTTPServer;
+
+ /// All the incoming data until the entire request header is parsed
+ AString m_IncomingHeaderData;
+
+ /// Status in which the request currently is
+ eState m_State;
+
+ /// Data that is queued for sending, once the socket becomes writable
+ AString m_OutgoingData;
+
+ /// The request being currently received (valid only between having parsed the headers and finishing receiving the body)
+ cHTTPRequest * m_CurrentRequest;
+
+
+ /// Parses the header in m_IncomingData until the specified end mark
+ void ParseHeader(size_t a_IdxEnd);
+
+ /// Sends the response status and headers. Transition from wrsRecvBody to wrsSendingResp.
+ void SendRespHeaders(void);
+
+ // cSocketThreads::cCallback overrides:
+ virtual void DataReceived (const char * a_Data, int a_Size) override; // Data is received from the client
+ virtual void GetOutgoingData(AString & a_Data) override; // Data can be sent to client
+ virtual void SocketClosed (void) override; // The socket has been closed for any reason
+} ;
+
+typedef std::vector<cHTTPConnection *> cHTTPConnections;
+
+
+
+
+class cHTTPServer :
+ public cListenThread::cCallback
+{
+public:
+ cHTTPServer(void);
+
+ bool Initialize(cIniFile & a_IniFile);
+
+protected:
+ friend class cHTTPConnection;
+
+ cListenThread m_ListenThreadIPv4;
+ cListenThread m_ListenThreadIPv6;
+
+ cSocketThreads m_SocketThreads;
+
+ cCriticalSection m_CSConnections;
+ cHTTPConnections m_Connections; ///< All the connections that are currently being serviced
+
+ // cListenThread::cCallback overrides:
+ virtual void OnConnectionAccepted(cSocket & a_Socket) override;
+
+ /// Called by cHTTPConnection to close the connection (presumably due to an error)
+ void CloseConnection(cHTTPConnection & a_Connection);
+
+ /// Called by cHTTPConnection when it finishes parsing the request header
+ void NewRequest(cHTTPConnection & a_Connection, cHTTPRequest & a_Request);
+
+ /// Called by cHTTPConenction when it receives more data for the request body
+ void RequestBody(cHTTPConnection & a_Connection, cHTTPRequest & a_Request);
+
+ /// Called by cHTTPConnection when it detects that the request has finished (all of its body has been received)
+ void RequestFinished(cHTTPConnection & a_Connection, cHTTPRequest & a_Request);
+} ;
+
+
+
+
+