contiki/apps/webserver/webserver.c

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/*
* Copyright (c) 2002, Adam Dunkels.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This file is part of the Contiki desktop environment for the C64.
*
* $Id: webserver.c,v 1.3 2007/04/23 21:19:55 oliverschmidt Exp $
*
*/
#include <string.h>
#include <stdio.h>
#include "contiki.h"
#include "ctk/ctk.h"
#include "http-strings.h"
#include "webserver.h"
#include "httpd.h"
/* The main window. */
static struct ctk_window mainwindow;
static struct ctk_label message =
{CTK_LABEL(0, 0, 15, 1, "Latest requests")};
PROCESS(webserver_process, "Web server");
#define LOG_WIDTH 38
#define LOG_HEIGHT 16
static char log[LOG_WIDTH*LOG_HEIGHT];
static struct ctk_label loglabel =
{CTK_LABEL(0, 1, LOG_WIDTH, LOG_HEIGHT, log)};
/*-----------------------------------------------------------------------------------*/
PROCESS_THREAD(webserver_process, ev, data)
{
PROCESS_BEGIN();
ctk_window_new(&mainwindow, LOG_WIDTH, LOG_HEIGHT+1, "Web server");
CTK_WIDGET_ADD(&mainwindow, &message);
CTK_WIDGET_ADD(&mainwindow, &loglabel);
httpd_init();
ctk_window_open(&mainwindow);
while(1) {
PROCESS_WAIT_EVENT();
if(ev == ctk_signal_window_close ||
ev == PROCESS_EVENT_EXIT) {
ctk_window_close(&mainwindow);
process_exit(&webserver_process);
LOADER_UNLOAD();
} else if(ev == tcpip_event) {
httpd_appcall(data);
}
}
PROCESS_END();
}
/*-----------------------------------------------------------------------------------*/
void
webserver_log_file(uip_ipaddr_t *requester, char *file)
{
int size;
/* Scroll previous entries upwards */
memcpy(log, &log[LOG_WIDTH], LOG_WIDTH * (LOG_HEIGHT - 1));
/* Print out IP address of requesting host. */
size = sprintf(&log[LOG_WIDTH * (LOG_HEIGHT - 1)],
"%d.%d.%d.%d: ",
requester->u8[0],
requester->u8[1],
requester->u8[2],
requester->u8[3]);
/* Copy filename into last line. */
strncpy(&log[LOG_WIDTH * (LOG_HEIGHT - 1) + size], file, LOG_WIDTH - size);
/* Update log display. */
CTK_WIDGET_REDRAW(&loglabel);
}
/*-----------------------------------------------------------------------------------*/
void
webserver_log(char *msg)
{
/* Scroll previous entries upwards */
memcpy(log, &log[LOG_WIDTH], LOG_WIDTH * (LOG_HEIGHT - 1));
/* Copy filename into last line. */
strncpy(&log[LOG_WIDTH * (LOG_HEIGHT - 1)], msg, LOG_WIDTH);
/* Update log display. */
CTK_WIDGET_REDRAW(&loglabel);
}
/*-----------------------------------------------------------------------------------*/