1 files changed, 124 insertions, 0 deletions
diff --git a/src/HTTP/HTTPServerConnection.h b/src/HTTP/HTTPServerConnection.h
new file mode 100644
index 000000000..af2abb73f
--- /dev/null
+++ b/src/HTTP/HTTPServerConnection.h
@@ -0,0 +1,124 @@
+
+// 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 cHTTPRequestParser;
+
+
+
+
+
+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. */
+	cHTTPRequestParser * 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;
+
+
+
+
+