contiki/apps/webserver/webserver.c

/*
 * 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);
}
/*-----------------------------------------------------------------------------------*/