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authorMattes D <github@xoft.cz>2015-12-25 19:42:50 +0100
committerMattes D <github@xoft.cz>2016-03-01 16:19:55 +0100
commit2dbc54a14824329faf53851441c6585fd451f0a2 (patch)
treebd59ed0139bfa7aff6a337c45cc38446e8812387 /src/HTTPServer/HTTPServerConnection.h
parentMerge pull request #3057 from tonibm19/master (diff)
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diff --git a/src/HTTPServer/HTTPServerConnection.h b/src/HTTPServer/HTTPServerConnection.h
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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"
+
+
+
+
+
+// fwd:
+class cHTTPServer;
+class cHTTPResponse;
+class cHTTPRequest;
+
+
+
+
+
+class cHTTPServerConnection :
+ public cTCPLink::cCallbacks
+{
+public:
+
+ enum eState
+ {
+ wcsRecvHeaders, ///< Receiving request headers (m_CurrentRequest is created if nullptr)
+ wcsRecvBody, ///< Receiving request body (m_CurrentRequest is valid)
+ wcsRecvIdle, ///< Has received the entire body, waiting to send the response (m_CurrentRequest == nullptr)
+ wcsSendingResp, ///< Sending response body (m_CurrentRequest == nullptr)
+ wcsInvalid, ///< The request was malformed, the connection is closing
+ } ;
+
+ cHTTPServerConnection(cHTTPServer & a_HTTPServer);
+ virtual ~cHTTPServerConnection();
+
+ /** 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. */
+ void SendStatusAndReason(int a_StatusCode, const AString & a_Reason);
+
+ /** Sends the "401 unauthorized" reply together with instructions on authorizing, using the specified realm */
+ void SendNeedAuth(const AString & a_Realm);
+
+ /** 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, 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) */
+ void FinishResponse(void);
+
+ /** Resets the internal connection state for a new request.
+ Depending on the state, this will send an "InternalServerError" status or a "ResponseEnd" */
+ void AwaitNextRequest(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;
+
+ /** All the incoming data until the entire request header is parsed */
+ AString m_IncomingHeaderData;
+
+ /** Status in which the request currently is */
+ eState m_State;
+
+ /** The request being currently received
+ Valid only between having parsed the headers and finishing receiving the body. */
+ cHTTPRequest * m_CurrentRequest;
+
+ /** Number of bytes that remain to read for the complete body of the message to be received.
+ Valid only in wcsRecvBody */
+ size_t m_CurrentRequestBodyRemaining;
+
+ /** 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;
+
+ // 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;
+
+
+
+
+