b15deeff07
If we use .htm instead of .html then we should also check for .htm instead of .html when it comes to MIME type setting. Interestingly this didn't show up when testing with Internet Explorer as that one just ignores the wrong MIME type and displays the HTML page as expected. Thanks to Shane Wood for pointing out the issue!
281 lines
8.2 KiB
C
281 lines
8.2 KiB
C
/*
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* Copyright (c) 2004, Adam Dunkels.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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* $Id: httpd-cfs.c,v 1.26 2011/01/25 20:13:41 oliverschmidt Exp $
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*/
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#include <stdio.h>
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#ifndef HAVE_SNPRINTF
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int snprintf(char *str, size_t size, const char *format, ...);
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#endif /* HAVE_SNPRINTF */
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#include <string.h>
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#include "contiki-net.h"
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#include "webserver.h"
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#include "cfs/cfs.h"
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#include "lib/petsciiconv.h"
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#include "http-strings.h"
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#include "urlconv.h"
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#include "httpd-cfs.h"
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#ifndef WEBSERVER_CONF_CFS_CONNS
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#define CONNS UIP_CONNS
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#else /* WEBSERVER_CONF_CFS_CONNS */
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#define CONNS WEBSERVER_CONF_CFS_CONNS
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#endif /* WEBSERVER_CONF_CFS_CONNS */
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#ifndef WEBSERVER_CONF_CFS_URLCONV
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#define URLCONV 1
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#else /* WEBSERVER_CONF_CFS_URLCONV */
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#define URLCONV WEBSERVER_CONF_CFS_URLCONV
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#endif /* WEBSERVER_CONF_CFS_URLCONV */
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#define STATE_WAITING 0
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#define STATE_OUTPUT 1
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#define SEND_STRING(s, str) PSOCK_SEND(s, (uint8_t *)str, strlen(str))
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MEMB(conns, struct httpd_state, CONNS);
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#define ISO_nl 0x0a
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#define ISO_space 0x20
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#define ISO_period 0x2e
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#define ISO_slash 0x2f
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/*---------------------------------------------------------------------------*/
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static
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PT_THREAD(send_file(struct httpd_state *s))
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{
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PSOCK_BEGIN(&s->sout);
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do {
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/* Read data from file system into buffer */
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s->len = cfs_read(s->fd, s->outputbuf, sizeof(s->outputbuf));
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/* If there is data in the buffer, send it */
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if(s->len > 0) {
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PSOCK_SEND(&s->sout, (uint8_t *)s->outputbuf, s->len);
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} else {
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break;
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}
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} while(s->len > 0);
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PSOCK_END(&s->sout);
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}
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/*---------------------------------------------------------------------------*/
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static
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PT_THREAD(send_string(struct httpd_state *s, const char *str))
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{
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PSOCK_BEGIN(&s->sout);
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SEND_STRING(&s->sout, str);
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PSOCK_END(&s->sout);
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}
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/*---------------------------------------------------------------------------*/
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static
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PT_THREAD(send_headers(struct httpd_state *s, const char *statushdr))
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{
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const char *ptr;
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PSOCK_BEGIN(&s->sout);
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SEND_STRING(&s->sout, statushdr);
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ptr = strrchr(s->filename, ISO_period);
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if(ptr == NULL) {
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ptr = http_content_type_plain;
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} else if(strcmp(http_htm, ptr) == 0) {
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ptr = http_content_type_html;
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} else if(strcmp(http_css, ptr) == 0) {
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ptr = http_content_type_css;
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} else if(strcmp(http_png, ptr) == 0) {
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ptr = http_content_type_png;
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} else if(strcmp(http_gif, ptr) == 0) {
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ptr = http_content_type_gif;
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} else if(strcmp(http_jpg, ptr) == 0) {
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ptr = http_content_type_jpg;
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} else {
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ptr = http_content_type_binary;
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}
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SEND_STRING(&s->sout, ptr);
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PSOCK_END(&s->sout);
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}
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/*---------------------------------------------------------------------------*/
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static
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PT_THREAD(handle_output(struct httpd_state *s))
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{
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PT_BEGIN(&s->outputpt);
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petsciiconv_topetscii(s->filename, sizeof(s->filename));
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s->fd = cfs_open(&s->filename[1], CFS_READ);
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petsciiconv_toascii(s->filename, sizeof(s->filename));
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if(s->fd < 0) {
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strcpy(s->filename, "/notfound.htm");
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s->fd = cfs_open(&s->filename[1], CFS_READ);
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petsciiconv_toascii(s->filename, sizeof(s->filename));
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PT_WAIT_THREAD(&s->outputpt,
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send_headers(s, http_header_404));
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if(s->fd < 0) {
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PT_WAIT_THREAD(&s->outputpt,
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send_string(s, "not found"));
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uip_close();
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webserver_log_file(&uip_conn->ripaddr, "404 (no notfound.htm)");
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PT_EXIT(&s->outputpt);
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}
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webserver_log_file(&uip_conn->ripaddr, "404 - notfound.htm");
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} else {
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PT_WAIT_THREAD(&s->outputpt,
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send_headers(s, http_header_200));
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}
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PT_WAIT_THREAD(&s->outputpt, send_file(s));
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cfs_close(s->fd);
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s->fd = -1;
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PSOCK_CLOSE(&s->sout);
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PT_END(&s->outputpt);
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}
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/*---------------------------------------------------------------------------*/
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static
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PT_THREAD(handle_input(struct httpd_state *s))
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{
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PSOCK_BEGIN(&s->sin);
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PSOCK_READTO(&s->sin, ISO_space);
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if(strncmp(s->inputbuf, http_get, 4) != 0) {
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PSOCK_CLOSE_EXIT(&s->sin);
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}
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PSOCK_READTO(&s->sin, ISO_space);
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if(s->inputbuf[0] != ISO_slash) {
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PSOCK_CLOSE_EXIT(&s->sin);
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}
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#if URLCONV
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s->inputbuf[PSOCK_DATALEN(&s->sin) - 1] = 0;
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urlconv_tofilename(s->filename, s->inputbuf, sizeof(s->filename));
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#else /* URLCONV */
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if(s->inputbuf[1] == ISO_space) {
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strncpy(s->filename, http_index_htm, sizeof(s->filename));
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} else {
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s->inputbuf[PSOCK_DATALEN(&s->sin) - 1] = 0;
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strncpy(s->filename, s->inputbuf, sizeof(s->filename));
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}
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#endif /* URLCONV */
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petsciiconv_topetscii(s->filename, sizeof(s->filename));
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webserver_log_file(&uip_conn->ripaddr, s->filename);
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petsciiconv_toascii(s->filename, sizeof(s->filename));
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s->state = STATE_OUTPUT;
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while(1) {
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PSOCK_READTO(&s->sin, ISO_nl);
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if(strncmp(s->inputbuf, http_referer, 8) == 0) {
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s->inputbuf[PSOCK_DATALEN(&s->sin) - 2] = 0;
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petsciiconv_topetscii(s->inputbuf, PSOCK_DATALEN(&s->sin) - 2);
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webserver_log(s->inputbuf);
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}
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}
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PSOCK_END(&s->sin);
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}
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/*---------------------------------------------------------------------------*/
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static void
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handle_connection(struct httpd_state *s)
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{
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handle_input(s);
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if(s->state == STATE_OUTPUT) {
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handle_output(s);
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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httpd_appcall(void *state)
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{
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struct httpd_state *s = (struct httpd_state *)state;
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if(uip_closed() || uip_aborted() || uip_timedout()) {
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if(s != NULL) {
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if(s->fd >= 0) {
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cfs_close(s->fd);
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s->fd = -1;
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}
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memb_free(&conns, s);
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}
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} else if(uip_connected()) {
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s = (struct httpd_state *)memb_alloc(&conns);
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if(s == NULL) {
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uip_abort();
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webserver_log_file(&uip_conn->ripaddr, "reset (no memory block)");
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return;
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}
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tcp_markconn(uip_conn, s);
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PSOCK_INIT(&s->sin, (uint8_t *)s->inputbuf, sizeof(s->inputbuf) - 1);
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PSOCK_INIT(&s->sout, (uint8_t *)s->inputbuf, sizeof(s->inputbuf) - 1);
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PT_INIT(&s->outputpt);
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s->fd = -1;
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s->state = STATE_WAITING;
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timer_set(&s->timer, CLOCK_SECOND * 10);
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handle_connection(s);
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} else if(s != NULL) {
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if(uip_poll()) {
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if(timer_expired(&s->timer)) {
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uip_abort();
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if(s->fd >= 0) {
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cfs_close(s->fd);
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s->fd = -1;
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}
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memb_free(&conns, s);
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webserver_log_file(&uip_conn->ripaddr, "reset (timeout)");
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}
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} else {
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timer_restart(&s->timer);
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}
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handle_connection(s);
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} else {
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uip_abort();
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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httpd_init(void)
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{
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tcp_listen(UIP_HTONS(80));
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memb_init(&conns);
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#if URLCONV
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urlconv_init();
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#endif /* URLCONV */
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}
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/*---------------------------------------------------------------------------*/
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