X-Git-Url: http://git.linex4red.de/pub/lufa.git/blobdiff_plain/41ad6bd6d7e886412f6c12d98f040e51c3ee4fdf..03ee87b35abdb8b92e8b55ec040fa943f9a6786c:/Projects/Incomplete/Webserver/Lib/WebserverApp.c
diff --git a/Projects/Incomplete/Webserver/Lib/WebserverApp.c b/Projects/Incomplete/Webserver/Lib/WebserverApp.c
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+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2010.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, distribute, and sell this
+ software and its documentation for any purpose is hereby granted
+ without fee, provided that the above copyright notice appear in
+ all copies and that both that the copyright notice and this
+ permission notice and warranty disclaimer appear in supporting
+ documentation, and that the name of the author not be used in
+ advertising or publicity pertaining to distribution of the
+ software without specific, written prior permission.
+
+ The author disclaim all warranties with regard to this
+ software, including all implied warranties of merchantability
+ and fitness. In no event shall the author be liable for any
+ special, indirect or consequential damages or any damages
+ whatsoever resulting from loss of use, data or profits, whether
+ in an action of contract, negligence or other tortious action,
+ arising out of or in connection with the use or performance of
+ this software.
+*/
+
+/** \file
+ *
+ * Simple HTTP Webserver Application. When connected to the uIP stack,
+ * this will serve out files to HTTP clients.
+ */
+
+#include "WebserverApp.h"
+
+/** HTTP server response header, for transmission before the page contents. This indicates to the host that a page exists at the
+ * given location, and gives extra connection information.
+ */
+char PROGMEM HTTP200Header[] = "HTTP/1.1 200 OK\r\n"
+ "Server: LUFA RNDIS\r\n"
+ "Content-type: text/html\r\n"
+ "Connection: close\r\n\r\n";
+
+/** HTTP server response header, for transmission before a resource not found error. This indicates to the host that the given
+ * given URL is invalid, and gives extra error information.
+ */
+char PROGMEM HTTP404Header[] = "HTTP/1.1 404 Not Found\r\n"
+ "Server: LUFA RNDIS\r\n"
+ "Connection: close\r\n\r\n";
+
+/****************************************************************************************/
+/** HTTP page to serve to the host when a HTTP request is made. This page is too long for a single response, thus it is automatically
+ * broken up into smaller blocks and sent as a series of packets each time the webserver application callback is run.
+ */
+char PROGMEM HTTPPage[] =
+ ""
+ " "
+ " "
+ " LUFA Webserver Demo"
+ " "
+ " "
+ " "
+ " Hello from your USB AVR!
"
+ " "
+ " Hello! Welcome to the LUFA RNDIS Demo Webserver test page, running on your USB AVR via the LUFA library. This demonstrates the HTTP webserver, TCP/IP stack and RNDIS demo all running atop the LUFA USB stack."
+ "
"
+ " Project Information: http://www.fourwalledcubicle.com/LUFA.php."
+ "
"
+ " LUFA Version: " LUFA_VERSION_STRING
+ " "
+ " "
+ "";
+
+void WebserverAppCallback(void)
+{
+ char* AppDataPtr = (char*)uip_appdata;
+ uint16_t AppDataSize = 0;
+
+ if (uip_closed() || uip_aborted() || uip_timedout())
+ {
+ /* Terminated or completed connection - don't send any new data */
+ return;
+ }
+ else if (uip_connected())
+ {
+ /* New connection - initialize connection state and data pointer to the appropriate HTTP header */
+ uip_conn->appstate.SendPos = HTTP200Header;
+ uip_conn->appstate.CurrentState = WEBSERVER_STATE_SendHeaders;
+ }
+
+ /* Calculate the maximum segment size and remaining data size */
+ uint16_t BytesRemaining = strlen_P(uip_conn->appstate.SendPos);
+ uint16_t MaxSegSize = uip_mss();
+
+ /* No more bytes remaining in the current data being sent - progress to next data chunk or
+ * terminate the connection once all chunks are sent */
+ if (!(BytesRemaining))
+ {
+ /* Check which data chunk we are currently sending (header or data) */
+ if (uip_conn->appstate.CurrentState == WEBSERVER_STATE_SendHeaders)
+ {
+ uip_conn->appstate.SendPos = HTTPPage;
+ uip_conn->appstate.CurrentState = WEBSERVER_STATE_SendData;
+ }
+ else if (uip_conn->appstate.CurrentState == WEBSERVER_STATE_SendData)
+ {
+ uip_close();
+ uip_conn->appstate.CurrentState = WEBSERVER_STATE_Closed;
+ }
+
+ return;
+ }
+ else if (BytesRemaining > MaxSegSize)
+ {
+ AppDataSize = MaxSegSize;
+ }
+ else
+ {
+ AppDataSize = BytesRemaining;
+ }
+
+ /* Copy over the next data segment to the application buffer, advance send position pointer */
+ strncpy_P(uip_appdata, uip_conn->appstate.SendPos, AppDataSize);
+ uip_conn->appstate.SendPos += AppDataSize;
+
+ /* Send the data to the requesting host */
+ uip_send(AppDataPtr, AppDataSize);
+}