1 files changed, 203 insertions, 0 deletions
diff --git a/Demos/Device/ClassDriver/RNDISEthernet/Lib/Webserver.c b/Demos/Device/ClassDriver/RNDISEthernet/Lib/Webserver.c
new file mode 100644
index 0000000000..be4c3a6f6b
--- /dev/null
+++ b/Demos/Device/ClassDriver/RNDISEthernet/Lib/Webserver.c
@@ -0,0 +1,203 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2017.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2017  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 disclaims 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 webserver application for demonstrating the RNDIS demo and TCP/IP stack. This
+ *  application will serve up a static HTTP web page when requested by the host.
+ */
+
+#include "Webserver.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.
+ */
+const char HTTP200Header[] PROGMEM = "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.
+ */
+const char HTTP404Header[] PROGMEM = "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.
+ */
+const char HTTPPage[] PROGMEM =
+		"<html>"
+		"	<head>"
+		"		<title>"
+		"			LUFA Webserver Demo"
+		"		</title>"
+		"	</head>"
+		"	<body>"
+		"		<h1>Hello from your USB AVR!</h1>"
+		"		<p>"
+		"			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."
+		"			<br /><br />"
+		"			<small>Project Information: <a href=\"http://www.lufa-lib.org\">http://www.lufa-lib.org</a>.</small>"
+		"			<hr />"
+		"			<i>LUFA Version: </i>" LUFA_VERSION_STRING
+		"		</p>"
+		"	</body>"
+		"</html>";
+
+
+/** Initializes the Webserver application, opening the appropriate HTTP port in the TCP handler and registering the application
+ *  callback routine for packets sent to the HTTP protocol port.
+ */
+void Webserver_Init(void)
+{
+	/* Open the HTTP port in the TCP protocol so that HTTP connections to the device can be established */
+	TCP_SetPortState(TCP_PORT_HTTP, TCP_Port_Open, Webserver_ApplicationCallback);
+}
+
+/** Indicates if a given request equals the given HTTP command.
+ *
+ *  \param[in] RequestHeader  HTTP request made by the host
+ *  \param[in] Command        HTTP command to compare the request to
+ *
+ *  \return Boolean \c true if the command matches the request, \c false otherwise
+ */
+static bool IsHTTPCommand(uint8_t* RequestHeader,
+                          char* Command)
+{
+	/* Returns true if the non null terminated string in RequestHeader matches the null terminated string Command */
+	return (strncmp((char*)RequestHeader, Command, strlen(Command)) == 0);
+}
+
+/** Application callback routine, executed each time the TCP processing task runs. This callback determines what request
+ *  has been made (if any), and serves up appropriate responses.
+ *
+ *  \param[in] ConnectionState  Pointer to a TCP Connection State structure giving connection information
+ *  \param[in,out] Buffer       Pointer to the application's send/receive packet buffer
+ */
+void Webserver_ApplicationCallback(TCP_ConnectionState_t* const ConnectionState,
+                                   TCP_ConnectionBuffer_t* const Buffer)
+{
+	char*          BufferDataStr = (char*)Buffer->Data;
+	static uint8_t PageBlock     = 0;
+
+	/* Check to see if a packet has been received on the HTTP port from a remote host */
+	if (TCP_APP_HAS_RECEIVED_PACKET(Buffer))
+	{
+		if (IsHTTPCommand(Buffer->Data, "GET"))
+		{
+			if (IsHTTPCommand(Buffer->Data, "GET / "))
+			{
+				PageBlock = 0;
+
+				/* Copy the HTTP 200 response header into the packet buffer */
+				strcpy_P(BufferDataStr, HTTP200Header);
+
+				/* Send the buffer contents to the host */
+				TCP_APP_SEND_BUFFER(Buffer, strlen(BufferDataStr));
+
+				/* Lock the buffer to Device->Host transmissions only while we send the page contents */
+				TCP_APP_CAPTURE_BUFFER(Buffer);
+			}
+			else
+			{
+				/* Copy the HTTP 404 response header into the packet buffer */
+				strcpy_P(BufferDataStr, HTTP404Header);
+
+				/* Send the buffer contents to the host */
+				TCP_APP_SEND_BUFFER(Buffer, strlen(BufferDataStr));
+
+				/* All data sent, close the connection */
+				TCP_APP_CLOSECONNECTION(ConnectionState);
+			}
+		}
+		else if (IsHTTPCommand(Buffer->Data, "HEAD"))
+		{
+			if (IsHTTPCommand(Buffer->Data, "HEAD / "))
+			{
+				/* Copy the HTTP response header into the packet buffer */
+				strcpy_P(BufferDataStr, HTTP200Header);
+
+				/* Send the buffer contents to the host */
+				TCP_APP_SEND_BUFFER(Buffer, strlen(BufferDataStr));
+			}
+			else
+			{
+				/* Copy the HTTP response header into the packet buffer */
+				strcpy_P(BufferDataStr, HTTP404Header);
+
+				/* Send the buffer contents to the host */
+				TCP_APP_SEND_BUFFER(Buffer, strlen(BufferDataStr));
+			}
+
+			/* All data sent, close the connection */
+			TCP_APP_CLOSECONNECTION(ConnectionState);
+		}
+		else if (IsHTTPCommand(Buffer->Data, "TRACE"))
+		{
+			/* Echo the host's query back to the host */
+			TCP_APP_SEND_BUFFER(Buffer, Buffer->Length);
+
+			/* All data sent, close the connection */
+			TCP_APP_CLOSECONNECTION(ConnectionState);
+		}
+		else
+		{
+			/* Unknown request, just clear the buffer (drop the packet) */
+			TCP_APP_CLEAR_BUFFER(Buffer);
+		}
+	}
+	else if (TCP_APP_HAVE_CAPTURED_BUFFER(Buffer))
+	{
+		uint16_t RemLength = strlen_P(&HTTPPage[PageBlock * HTTP_REPLY_BLOCK_SIZE]);
+		uint16_t Length;
+
+		/* Determine the length of the loaded block */
+		Length = ((RemLength > HTTP_REPLY_BLOCK_SIZE) ? HTTP_REPLY_BLOCK_SIZE : RemLength);
+
+		/* Copy the next buffer sized block of the page to the packet buffer */
+		strncpy_P(BufferDataStr, &HTTPPage[PageBlock * HTTP_REPLY_BLOCK_SIZE], Length);
+
+		/* Send the buffer contents to the host */
+		TCP_APP_SEND_BUFFER(Buffer, Length);
+
+		/* Check to see if the entire page has been sent */
+		if (PageBlock++ == (sizeof(HTTPPage) / HTTP_REPLY_BLOCK_SIZE))
+		{
+			/* Unlock the buffer so that the host can fill it with future packets */
+			TCP_APP_RELEASE_BUFFER(Buffer);
+
+			/* Close the connection to the host */
+			TCP_APP_CLOSECONNECTION(ConnectionState);
+		}
+	}
+}
+