forked from mfulz_github/qmk_firmware
133 lines
4.9 KiB
C
133 lines
4.9 KiB
C
/*
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LUFA Library
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Copyright (C) Dean Camera, 2010.
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dean [at] fourwalledcubicle [dot] com
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www.fourwalledcubicle.com
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*/
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/*
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Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaim all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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/** \file
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*
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* Simple HTTP Webserver Application. When connected to the uIP stack,
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* this will serve out files to HTTP clients.
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*/
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#include "WebserverApp.h"
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/** HTTP server response header, for transmission before the page contents. This indicates to the host that a page exists at the
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* given location, and gives extra connection information.
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*/
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char PROGMEM HTTP200Header[] = "HTTP/1.1 200 OK\r\n"
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"Server: LUFA RNDIS\r\n"
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"Content-type: text/html\r\n"
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"Connection: close\r\n\r\n";
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/** HTTP server response header, for transmission before a resource not found error. This indicates to the host that the given
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* given URL is invalid, and gives extra error information.
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*/
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char PROGMEM HTTP404Header[] = "HTTP/1.1 404 Not Found\r\n"
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"Server: LUFA RNDIS\r\n"
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"Connection: close\r\n\r\n";
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/****************************************************************************************/
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/** 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
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* broken up into smaller blocks and sent as a series of packets each time the webserver application callback is run.
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*/
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char PROGMEM HTTPPage[] =
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"<html>"
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" <head>"
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" <title>"
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" LUFA Webserver Demo"
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" </title>"
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" </head>"
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" <body>"
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" <h1>Hello from your USB AVR!</h1>"
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" <p>"
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" Hello! Welcome to the LUFA RNDIS Demo Webserver test page, running on your USB AVR via the LUFA library and uIP TCP/IP network stack. This"
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" demonstrates a simple HTTP webserver serving out pages to HTTP clients."
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" <br /><br />"
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" <small>Project Information: <a href=\"http://www.fourwalledcubicle.com/LUFA.php\">http://www.fourwalledcubicle.com/LUFA.php</a>.</small>"
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" <hr />"
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" <i>LUFA Version: </i>" LUFA_VERSION_STRING
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" </p>"
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" </body>"
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"</html>";
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void WebserverAppCallback(void)
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{
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char* AppDataPtr = (char*)uip_appdata;
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uint16_t AppDataSize = 0;
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if (uip_closed() || uip_aborted() || uip_timedout())
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{
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/* Terminated or completed connection - don't send any new data */
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return;
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}
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else if (uip_connected())
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{
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/* New connection - initialize connection state and data pointer to the appropriate HTTP header */
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uip_conn->appstate.SendPos = HTTP200Header;
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uip_conn->appstate.CurrentState = WEBSERVER_STATE_SendHeaders;
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}
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/* Calculate the maximum segment size and remaining data size */
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uint16_t BytesRemaining = strlen_P(uip_conn->appstate.SendPos);
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uint16_t MaxSegSize = uip_mss();
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/* No more bytes remaining in the current data being sent - progress to next data chunk or
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* terminate the connection once all chunks are sent */
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if (!(BytesRemaining))
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{
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/* Check which data chunk we are currently sending (header or data) */
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if (uip_conn->appstate.CurrentState == WEBSERVER_STATE_SendHeaders)
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{
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uip_conn->appstate.SendPos = HTTPPage;
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uip_conn->appstate.CurrentState = WEBSERVER_STATE_SendData;
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}
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else if (uip_conn->appstate.CurrentState == WEBSERVER_STATE_SendData)
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{
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uip_close();
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uip_conn->appstate.CurrentState = WEBSERVER_STATE_Closed;
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}
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return;
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}
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else if (BytesRemaining > MaxSegSize)
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{
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AppDataSize = MaxSegSize;
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}
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else
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{
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AppDataSize = BytesRemaining;
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}
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/* Copy over the next data segment to the application buffer, advance send position pointer */
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strncpy_P(uip_appdata, uip_conn->appstate.SendPos, AppDataSize);
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uip_conn->appstate.SendPos += AppDataSize;
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/* Send the data to the requesting host */
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uip_send(AppDataPtr, AppDataSize);
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}
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