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nes-proj/examples/platform-specific/cc26x0-cc13x0/cc26x0-web-demo/httpd-simple.c

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/*
* Copyright (c) 2010, Swedish Institute of Computer Science.
* Copyright (c) 2014, Texas Instruments Incorporated - http://www.ti.com/
* 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. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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.
*
*/
/**
* \addtogroup cc26x0-web-demo
* @{
*
* \file
* A simple web server which displays network and sensor information
*/
/*---------------------------------------------------------------------------*/
#include "contiki.h"
#include "httpd-simple.h"
#include "net/ipv6/uip-ds6-route.h"
#include "batmon-sensor.h"
#include "lib/sensors.h"
#include "lib/list.h"
#include "cc26x0-web-demo.h"
#include "mqtt-client.h"
#include "net-uart.h"
#include <stdint.h>
#include <string.h>
#include <strings.h>
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <strformat.h>
#include <ctype.h>
/*---------------------------------------------------------------------------*/
#define SEND_STRING(s, str) PSOCK_SEND(s, (uint8_t *)str, strlen(str))
/*---------------------------------------------------------------------------*/
#define CONNS 2
#define CONTENT_LENGTH_MAX 256
#define STATE_WAITING 0
#define STATE_OUTPUT 1
#define IPADDR_BUF_LEN 64
/*---------------------------------------------------------------------------*/
#define RETURN_CODE_OK 0
#define RETURN_CODE_NF 1 /* Not Found */
#define RETURN_CODE_SU 2 /* Service Unavailable */
#define RETURN_CODE_BR 3 /* Bad Request */
#define RETURN_CODE_LR 4 /* Length Required */
#define RETURN_CODE_TL 5 /* Content Length too Large */
/*---------------------------------------------------------------------------*/
/* POST request machine states */
#define PARSE_POST_STATE_INIT 0
#define PARSE_POST_STATE_MORE 1
#define PARSE_POST_STATE_READING_KEY 2
#define PARSE_POST_STATE_READING_VAL 3
#define PARSE_POST_STATE_ERROR 0xFFFFFFFF
/*---------------------------------------------------------------------------*/
#define PARSE_POST_BUF_SIZES 64
/* Last byte always used to null terminate */
#define PARSE_POST_MAX_POS (PARSE_POST_BUF_SIZES - 2)
static char key[PARSE_POST_BUF_SIZES];
static char val_escaped[PARSE_POST_BUF_SIZES];
static char val[PARSE_POST_BUF_SIZES];
static int key_len;
static int val_len;
static int state;
/*---------------------------------------------------------------------------*/
/* Stringified min/max intervals */
#define STRINGIFY(x) XSTR(x)
#define XSTR(x) #x
#define RSSI_INT_MAX STRINGIFY(CC26XX_WEB_DEMO_RSSI_MEASURE_INTERVAL_MAX)
#define RSSI_INT_MIN STRINGIFY(CC26XX_WEB_DEMO_RSSI_MEASURE_INTERVAL_MIN)
#define PUB_INT_MAX STRINGIFY(MQTT_CLIENT_PUBLISH_INTERVAL_MAX)
#define PUB_INT_MIN STRINGIFY(MQTT_CLIENT_PUBLISH_INTERVAL_MIN)
/*---------------------------------------------------------------------------*/
/*
* We can only handle a single POST request at a time. Since a second POST
* request cannot interrupt us while obtaining a lock, we don't really need
* this lock to be atomic.
*
* An HTTP connection will first request a lock before it starts processing
* a POST request. We maintain a global lock which is either NULL or points
* to the http conn which currently has the lock
*/
static struct httpd_state *lock;
/*---------------------------------------------------------------------------*/
PROCESS(httpd_simple_process, "CC26XX Web Server");
/*---------------------------------------------------------------------------*/
#define ISO_nl 0x0A
#define ISO_space 0x20
#define ISO_slash 0x2F
#define ISO_amp 0x26
#define ISO_column 0x3A
#define ISO_equal 0x3D
/*---------------------------------------------------------------------------*/
#define HTTP_200_OK "HTTP/1.0 200 OK\r\n"
#define HTTP_302_FO "HTTP/1.0 302 Found\r\n"
#define HTTP_400_BR "HTTP/1.0 400 Bad Request\r\n"
#define HTTP_404_NF "HTTP/1.0 404 Not Found\r\n"
#define HTTP_411_LR "HTTP/1.0 411 Length Required\r\n"
#define HTTP_413_TL "HTTP/1.0 413 Request Entity Too Large\r\n"
#define HTTP_503_SU "HTTP/1.0 503 Service Unavailable\r\n"
#define CONN_CLOSE "Connection: close\r\n"
/*---------------------------------------------------------------------------*/
#define SECTION_TAG "div"
#define SECTION_OPEN "<" SECTION_TAG ">"
#define SECTION_CLOSE "</" SECTION_TAG ">"
#define CONTENT_OPEN "<pre>"
#define CONTENT_CLOSE "</pre>"
/*---------------------------------------------------------------------------*/
#define REQUEST_TYPE_GET 1
#define REQUEST_TYPE_POST 2
/*---------------------------------------------------------------------------*/
static const char *NOT_FOUND = "<html><body bgcolor=\"white\">"
"<center>"
"<h1>404 - file not found</h1>"
"</center>"
"</body>"
"</html>";
/*---------------------------------------------------------------------------*/
/* Page template */
static const char http_doctype[] = "<!DOCTYPE html>";
static const char http_header_200[] = HTTP_200_OK;
static const char http_header_302[] = HTTP_302_FO;
static const char http_header_400[] = HTTP_400_BR;
static const char http_header_404[] = HTTP_404_NF;
static const char http_header_411[] = HTTP_411_LR;
static const char http_header_413[] = HTTP_413_TL;
static const char http_header_503[] = HTTP_503_SU;
static const char http_get[] = "GET ";
static const char http_post[] = "POST ";
static const char http_index_html[] = "/index.html";
static const char http_html_start[] = "<html><head>";
static const char *http_header_srv_str[] = {
"Server: Contiki, ",
BOARD_STRING "\r\n",
NULL
};
static const char *http_header_con_close[] = {
CONN_CLOSE,
NULL
};
static const char *http_config_css[] = {
"<style>",
".left{float:left;text-align:right;}",
".right{margin-left:150px;}",
"input[type=\"radio\"]",
"{display: inline-block;}",
"</style>",
NULL
};
static const char http_head_charset[] = "<meta charset=\"UTF-8\">";
static const char http_title_start[] = "<title>";
static const char http_title_end[] = "</title>";
static const char http_head_end[] = "</head>";
static const char http_body_start[] = "<body>";
static const char http_bottom[] = "</body></html>";
/*---------------------------------------------------------------------------*/
static const char http_content_type_html[] = "text/html";
static const char http_content_type_plain[] = "text/plain";
/*---------------------------------------------------------------------------*/
/* For the config page */
static const char config_div_left[] = "<div class=\"left\">";
static const char config_div_right[] = "<div class=\"right\">";
static const char config_div_close[] = "</div>";
/*---------------------------------------------------------------------------*/
static char generate_index(struct httpd_state *s);
static char generate_config(struct httpd_state *s);
/*---------------------------------------------------------------------------*/
typedef struct page {
struct page *next;
char *filename;
char *title;
char (*script)(struct httpd_state *s);
} page_t;
static page_t http_index_page = {
NULL,
"index.html",
"Index",
generate_index,
};
static page_t http_dev_cfg_page = {
NULL,
"config.html",
"Device Config",
generate_config,
};
#if CC26XX_WEB_DEMO_NET_UART
static char generate_net_uart_config(struct httpd_state *s);
static page_t http_net_cfg_page = {
NULL,
"netu.html",
"Net-UART Config",
generate_net_uart_config,
};
#endif
#if CC26XX_WEB_DEMO_MQTT_CLIENT
static char generate_mqtt_config(struct httpd_state *s);
static page_t http_mqtt_cfg_page = {
NULL,
"mqtt.html",
"MQTT/IBM Cloud Config",
generate_mqtt_config,
};
#endif
/*---------------------------------------------------------------------------*/
#define IBM_QUICKSTART_LINK_LEN 128
static char http_mqtt_a[IBM_QUICKSTART_LINK_LEN];
/*---------------------------------------------------------------------------*/
static uint16_t numtimes;
static const httpd_simple_post_handler_t *handler;
/*---------------------------------------------------------------------------*/
static uint8_t config_ok;
process_event_t httpd_simple_event_new_config;
/*---------------------------------------------------------------------------*/
struct httpd_state;
typedef char (*httpd_simple_script_t)(struct httpd_state *s);
struct httpd_state {
char buf[HTTPD_SIMPLE_MAIN_BUF_SIZE];
char tmp_buf[TMP_BUF_SIZE];
struct timer timer;
struct psock sin, sout;
int blen;
const char **ptr;
const cc26xx_web_demo_sensor_reading_t *reading;
const page_t *page;
uip_ds6_route_t *r;
uip_ds6_nbr_t *nbr;
httpd_simple_script_t script;
int content_length;
int tmp_buf_len;
int tmp_buf_copied;
char filename[HTTPD_PATHLEN];
char inputbuf[HTTPD_INBUF_LEN];
struct pt outputpt;
struct pt generate_pt;
struct pt top_matter_pt;
char state;
char request_type;
char return_code;
};
/*---------------------------------------------------------------------------*/
LIST(post_handlers);
LIST(pages_list);
MEMB(conns, struct httpd_state, CONNS);
/*---------------------------------------------------------------------------*/
#define HEX_TO_INT(x) (isdigit(x) ? x - '0' : x - 'W')
static size_t
url_unescape(const char *src, size_t srclen, char *dst, size_t dstlen)
{
size_t i, j;
int a, b;
for(i = j = 0; i < srclen && j < dstlen - 1; i++, j++) {
if(src[i] == '%' && isxdigit(*(unsigned char *)(src + i + 1))
&& isxdigit(*(unsigned char *)(src + i + 2))) {
a = tolower(*(unsigned char *)(src + i + 1));
b = tolower(*(unsigned char *)(src + i + 2));
dst[j] = ((HEX_TO_INT(a) << 4) | HEX_TO_INT(b)) & 0xff;
i += 2;
} else if(src[i] == '+') {
dst[j] = ' ';
} else {
dst[j] = src[i];
}
}
dst[j] = '\0';
return i == srclen;
}
/*---------------------------------------------------------------------------*/
void
httpd_simple_register_post_handler(httpd_simple_post_handler_t *h)
{
list_add(post_handlers, h);
}
/*---------------------------------------------------------------------------*/
static void
get_neighbour_state_text(char *buf, uint8_t state)
{
switch(state) {
case NBR_INCOMPLETE:
memcpy(buf, "INCOMPLETE", strlen("INCOMPLETE"));
break;
case NBR_REACHABLE:
memcpy(buf, "REACHABLE", strlen("REACHABLE"));
break;
case NBR_STALE:
memcpy(buf, "STALE", strlen("STALE"));
break;
case NBR_DELAY:
memcpy(buf, "DELAY", strlen("DELAY"));
break;
case NBR_PROBE:
memcpy(buf, "NBR_PROBE", strlen("NBR_PROBE"));
break;
}
}
/*---------------------------------------------------------------------------*/
static
PT_THREAD(enqueue_chunk(struct httpd_state *s, uint8_t immediate,
const char *format, ...))
{
va_list ap;
PSOCK_BEGIN(&s->sout);
va_start(ap, format);
s->tmp_buf_len = vsnprintf(s->tmp_buf, TMP_BUF_SIZE, format, ap);
va_end(ap);
if(s->blen + s->tmp_buf_len < HTTPD_SIMPLE_MAIN_BUF_SIZE) {
/* Enough space for the entire chunk. Copy over */
memcpy(&s->buf[s->blen], s->tmp_buf, s->tmp_buf_len);
s->blen += s->tmp_buf_len;
} else {
memcpy(&s->buf[s->blen], s->tmp_buf, HTTPD_SIMPLE_MAIN_BUF_SIZE - s->blen);
s->tmp_buf_copied = HTTPD_SIMPLE_MAIN_BUF_SIZE - s->blen;
s->blen = HTTPD_SIMPLE_MAIN_BUF_SIZE;
PSOCK_SEND(&s->sout, (uint8_t *)s->buf, s->blen);
s->blen = 0;
if(s->tmp_buf_copied < s->tmp_buf_len) {
memcpy(s->buf, &s->tmp_buf[s->tmp_buf_copied],
s->tmp_buf_len - s->tmp_buf_copied);
s->blen += s->tmp_buf_len - s->tmp_buf_copied;
}
}
if(immediate != 0 && s->blen > 0) {
PSOCK_SEND(&s->sout, (uint8_t *)s->buf, s->blen);
s->blen = 0;
}
PSOCK_END(&s->sout);
}
/*---------------------------------------------------------------------------*/
static
PT_THREAD(generate_top_matter(struct httpd_state *s, const char *title,
const char **css))
{
PT_BEGIN(&s->top_matter_pt);
PT_WAIT_THREAD(&s->top_matter_pt, enqueue_chunk(s, 0, http_doctype));
PT_WAIT_THREAD(&s->top_matter_pt, enqueue_chunk(s, 0, http_html_start));
PT_WAIT_THREAD(&s->top_matter_pt, enqueue_chunk(s, 0, http_title_start));
PT_WAIT_THREAD(&s->top_matter_pt, enqueue_chunk(s, 0, title));
PT_WAIT_THREAD(&s->top_matter_pt, enqueue_chunk(s, 0, http_title_end));
if(css != NULL) {
for(s->ptr = css; *(s->ptr) != NULL; s->ptr++) {
PT_WAIT_THREAD(&s->top_matter_pt, enqueue_chunk(s, 0, *(s->ptr)));
}
}
PT_WAIT_THREAD(&s->top_matter_pt, enqueue_chunk(s, 0, http_head_charset));
PT_WAIT_THREAD(&s->top_matter_pt, enqueue_chunk(s, 0, http_head_end));
PT_WAIT_THREAD(&s->top_matter_pt, enqueue_chunk(s, 0, http_body_start));
/* Links */
PT_WAIT_THREAD(&s->top_matter_pt,
enqueue_chunk(s, 0, SECTION_OPEN "<p>"));
s->page = list_head(pages_list);
PT_WAIT_THREAD(&s->top_matter_pt,
enqueue_chunk(s, 0, "[ <a href=\"%s\">%s</a> ]",
s->page->filename, s->page->title));
for(s->page = s->page->next; s->page != NULL; s->page = s->page->next) {
PT_WAIT_THREAD(&s->top_matter_pt,
enqueue_chunk(s, 0, " | [ <a href=\"%s\">%s</a> ]",
s->page->filename, s->page->title));
}
#if CC26XX_WEB_DEMO_MQTT_CLIENT
PT_WAIT_THREAD(&s->top_matter_pt,
enqueue_chunk(s, 0, " | %s", http_mqtt_a));
#endif
PT_WAIT_THREAD(&s->top_matter_pt,
enqueue_chunk(s, 0, "</p>" SECTION_CLOSE));
PT_END(&s->top_matter_pt);
}
/*---------------------------------------------------------------------------*/
static
PT_THREAD(generate_index(struct httpd_state *s))
{
char ipaddr_buf[IPADDR_BUF_LEN]; /* Intentionally on stack */
PT_BEGIN(&s->generate_pt);
/* Generate top matter (doctype, title, nav links etc) */
PT_WAIT_THREAD(&s->generate_pt,
generate_top_matter(s, http_index_page.title, NULL));
/* ND Cache */
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, SECTION_OPEN "Neighbors" CONTENT_OPEN));
for(s->nbr = nbr_table_head(ds6_neighbors); s->nbr != NULL;
s->nbr = nbr_table_next(ds6_neighbors, s->nbr)) {
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 0, "\n"));
memset(ipaddr_buf, 0, IPADDR_BUF_LEN);
cc26xx_web_demo_ipaddr_sprintf(ipaddr_buf, IPADDR_BUF_LEN, &s->nbr->ipaddr);
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 0, "%s", ipaddr_buf));
memset(ipaddr_buf, 0, IPADDR_BUF_LEN);
get_neighbour_state_text(ipaddr_buf, s->nbr->state);
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 0, " %s", ipaddr_buf));
}
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, CONTENT_CLOSE SECTION_CLOSE));
/* Default Route */
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0,
SECTION_OPEN "Default Route" CONTENT_OPEN));
memset(ipaddr_buf, 0, IPADDR_BUF_LEN);
cc26xx_web_demo_ipaddr_sprintf(ipaddr_buf, IPADDR_BUF_LEN,
uip_ds6_defrt_choose());
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 0, "%s", ipaddr_buf));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, CONTENT_CLOSE SECTION_CLOSE));
/* Routes */
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, SECTION_OPEN "Routes" CONTENT_OPEN));
for(s->r = uip_ds6_route_head(); s->r != NULL;
s->r = uip_ds6_route_next(s->r)) {
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 0, "\n"));
memset(ipaddr_buf, 0, IPADDR_BUF_LEN);
cc26xx_web_demo_ipaddr_sprintf(ipaddr_buf, IPADDR_BUF_LEN, &s->r->ipaddr);
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 0, "%s", ipaddr_buf));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, " / %u via ", s->r->length));
memset(ipaddr_buf, 0, IPADDR_BUF_LEN);
cc26xx_web_demo_ipaddr_sprintf(ipaddr_buf, IPADDR_BUF_LEN,
uip_ds6_route_nexthop(s->r));
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 0, "%s", ipaddr_buf));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0,
", lifetime=%lus", s->r->state.lifetime));
}
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 0,
CONTENT_CLOSE SECTION_CLOSE));
/* Sensors */
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, SECTION_OPEN "Sensors" CONTENT_OPEN));
for(s->reading = cc26xx_web_demo_sensor_first();
s->reading != NULL; s->reading = s->reading->next) {
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "\n%s = %s %s", s->reading->descr,
s->reading->publish ? s->reading->converted : "N/A",
s->reading->units));
}
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, CONTENT_CLOSE SECTION_CLOSE));
/* Footer */
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 0, SECTION_OPEN));
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 0, "Page hits: %u<br>",
++numtimes));
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 0, "Uptime: %lu secs<br>",
clock_seconds()));
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 0, SECTION_CLOSE));
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 1, http_bottom));
PT_END(&s->generate_pt);
}
/*---------------------------------------------------------------------------*/
static
PT_THREAD(generate_config(struct httpd_state *s))
{
PT_BEGIN(&s->generate_pt);
/* Generate top matter (doctype, title, nav links etc) */
PT_WAIT_THREAD(&s->generate_pt,
generate_top_matter(s, http_dev_cfg_page.title,
http_config_css));
/* Sensor Settings */
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "<h1>Sensors</h1>"));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0,
"<form name=\"input\" action=\"%s\" ",
http_dev_cfg_page.filename));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "method=\"post\" enctype=\""));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "application/x-www-form-urlencoded\" "));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "accept-charset=\"UTF-8\">"));
for(s->reading = cc26xx_web_demo_sensor_first();
s->reading != NULL; s->reading = s->reading->next) {
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%s%s:%s%s", config_div_left,
s->reading->descr, config_div_close,
config_div_right));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "<input type=\"radio\" value=\"1\" "));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "title=\"On\" name=\"%s\"%s>",
s->reading->form_field,
s->reading->publish ? " Checked" : ""));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "<input type=\"radio\" value=\"0\" "));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "title=\"Off\" name=\"%s\"%s>%s",
s->reading->form_field,
s->reading->publish ? "" : " Checked",
config_div_close));
}
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0,
"<input type=\"submit\" value=\"Submit\">"));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "</form>"));
/* RSSI measurements */
#if CC26XX_WEB_DEMO_READ_PARENT_RSSI
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "<h1>RSSI Probing</h1>"));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0,
"<form name=\"input\" action=\"%s\" ",
http_dev_cfg_page.filename));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "method=\"post\" enctype=\""));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "application/x-www-form-urlencoded\" "));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "accept-charset=\"UTF-8\">"));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%sPeriod (secs):%s",
config_div_left, config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%s<input type=\"number\" ",
config_div_right));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "value=\"%lu\" ",
(clock_time_t)
(cc26xx_web_demo_config.def_rt_ping_interval
/ CLOCK_SECOND)));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0,
"min=\"" RSSI_INT_MIN "\" "
"max=\"" RSSI_INT_MAX "\" "
"name=\"ping_interval\">%s",
config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0,
"<input type=\"submit\" value=\"Submit\">"));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "</form>"));
#endif
/* Actions */
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 0, "<h1>Actions</h1>"));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0,
"<form name=\"input\" action=\"%s\" ",
http_dev_cfg_page.filename));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "method=\"post\" enctype=\""));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "application/x-www-form-urlencoded\" "));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "accept-charset=\"UTF-8\">"));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "<input type=\"hidden\" value=\"1\" "
"name=\"defaults\">"));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "<button>Restore Defaults</button>"));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "</form>"));
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 1, http_bottom));
PT_END(&s->generate_pt);
}
/*---------------------------------------------------------------------------*/
#if CC26XX_WEB_DEMO_MQTT_CLIENT
static
PT_THREAD(generate_mqtt_config(struct httpd_state *s))
{
PT_BEGIN(&s->generate_pt);
/* Generate top matter (doctype, title, nav links etc) */
PT_WAIT_THREAD(&s->generate_pt,
generate_top_matter(s, http_mqtt_cfg_page.title,
http_config_css));
/* MQTT client settings */
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "<h1>%s</h1>", http_mqtt_cfg_page.title));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0,
"<form name=\"input\" action=\"%s\" ",
http_mqtt_cfg_page.filename));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "method=\"post\" enctype=\""));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "application/x-www-form-urlencoded\" "));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "accept-charset=\"UTF-8\">"));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%sType ID:%s", config_div_left,
config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%s<input type=\"text\" ",
config_div_right));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "value=\"%s\" ",
cc26xx_web_demo_config.mqtt_config.type_id));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "name=\"type_id\">%s", config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%sOrg ID:%s", config_div_left,
config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%s<input type=\"text\" ",
config_div_right));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "value=\"%s\" ",
cc26xx_web_demo_config.mqtt_config.org_id));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "name=\"org_id\">%s", config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%sAuth Token:%s", config_div_left,
config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%s<input type=\"text\" ",
config_div_right));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "value=\"\" "));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "name=\"auth_token\">%s",
config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%sCommand Type:%s", config_div_left,
config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%s<input type=\"text\" ",
config_div_right));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "value=\"%s\" ",
cc26xx_web_demo_config.mqtt_config.cmd_type));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "name=\"cmd_type\">%s",
config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%sEvent Type ID:%s", config_div_left,
config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%s<input type=\"text\" ",
config_div_right));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "value=\"%s\" ",
cc26xx_web_demo_config.mqtt_config.event_type_id));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "name=\"event_type_id\">%s",
config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%sInterval (secs):%s",
config_div_left, config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%s<input type=\"number\" ",
config_div_right));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "value=\"%lu\" ",
(clock_time_t)
(cc26xx_web_demo_config.mqtt_config.pub_interval
/ CLOCK_SECOND)));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0,
"min=\"" PUB_INT_MIN "\" "
"max=\"" PUB_INT_MAX "\" "
"name=\"interval\">%s",
config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%sBroker IP:%s", config_div_left,
config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%s<input type=\"text\" ",
config_div_right));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "value=\"%s\" ",
cc26xx_web_demo_config.mqtt_config.broker_ip));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "name=\"broker_ip\">%s",
config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%sBroker Port:%s", config_div_left,
config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%s<input type=\"number\" ",
config_div_right));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "value=\"%d\" ",
cc26xx_web_demo_config.mqtt_config.broker_port));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "min=\"1\" max=\"65535\" "
"name=\"broker_port\">%s",
config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0,
"<input type=\"submit\" value=\"Submit\">"));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "</form>"));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0,
"<form name=\"input\" action=\"%s\" ",
http_mqtt_cfg_page.filename));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "method=\"post\" enctype=\""));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "application/x-www-form-urlencoded\" "));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "accept-charset=\"UTF-8\">"));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "<input type=\"hidden\" value=\"1\" "
"name=\"reconnect\">"));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "<button>MQTT Reconnect</button>"));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "</form>"));
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 1, http_bottom));
PT_END(&s->generate_pt);
}
#endif
/*---------------------------------------------------------------------------*/
#if CC26XX_WEB_DEMO_NET_UART
static
PT_THREAD(generate_net_uart_config(struct httpd_state *s))
{
PT_BEGIN(&s->generate_pt);
/* Generate top matter (doctype, title, nav links etc) */
PT_WAIT_THREAD(&s->generate_pt,
generate_top_matter(s, http_net_cfg_page.title,
http_config_css));
/* Net-UART settings */
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "<h1>%s</h1>", http_net_cfg_page.title));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0,
"<form name=\"input\" action=\"%s\" ",
http_net_cfg_page.filename));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "method=\"post\" enctype=\""));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "application/x-www-form-urlencoded\" "));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "accept-charset=\"UTF-8\">"));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%sRemote IPv6:%s", config_div_left,
config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%s<input type=\"text\" ",
config_div_right));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "value=\"%s\" ",
cc26xx_web_demo_config.net_uart.remote_address));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "name=\"net_uart_ip\">%s",
config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%sRemote Port:%s", config_div_left,
config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%s<input type=\"number\" ",
config_div_right));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "value=\"%u\" ",
cc26xx_web_demo_config.net_uart.remote_port));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "min=\"1\" max=\"65535\" "
"name=\"net_uart_port\">%s",
config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "%s%s:%s%s", config_div_left,
"Enable", config_div_close,
config_div_right));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "<input type=\"radio\" value=\"1\" "));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "title=\"On\" name=\"net_uart_on\"%s>",
cc26xx_web_demo_config.net_uart.enable ?
" Checked" : ""));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "<input type=\"radio\" value=\"0\" "));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "title=\"Off\" name=\"net_uart_on\""
"%s>%s",
cc26xx_web_demo_config.net_uart.enable ?
"" : " Checked", config_div_close));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0,
"<input type=\"submit\" value=\"Submit\">"));
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "</form>"));
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 1, http_bottom));
PT_END(&s->generate_pt);
}
#endif
/*---------------------------------------------------------------------------*/
static void
lock_obtain(struct httpd_state *s)
{
if(lock == NULL) {
lock = s;
}
}
/*---------------------------------------------------------------------------*/
static void
lock_release(struct httpd_state *s)
{
if(lock == s) {
lock = NULL;
}
}
/*---------------------------------------------------------------------------*/
static void
parse_post_request_chunk(char *buf, int buf_len, int last_chunk)
{
int i;
int finish;
for(i = 0; i < buf_len; i++) {
switch(state) {
case PARSE_POST_STATE_INIT:
state = PARSE_POST_STATE_MORE;
/* continue */
case PARSE_POST_STATE_MORE:
memset(key, 0, PARSE_POST_BUF_SIZES);
memset(val, 0, PARSE_POST_BUF_SIZES);
memset(val_escaped, 0, PARSE_POST_BUF_SIZES);
key_len = 0;
val_len = 0;
state = PARSE_POST_STATE_READING_KEY;
/* continue */
case PARSE_POST_STATE_READING_KEY:
if(buf[i] == ISO_equal) {
state = PARSE_POST_STATE_READING_VAL;
} else if(buf[i] == ISO_amp) {
/* Don't accept an amp while reading a key */
state = PARSE_POST_STATE_ERROR;
} else {
/* Make sure we don't overshoot key's boundary */
if(key_len <= PARSE_POST_MAX_POS) {
key[key_len] = buf[i];
key_len++;
} else {
/* Not enough space for the key. Abort */
state = PARSE_POST_STATE_ERROR;
}
}
break;
case PARSE_POST_STATE_READING_VAL:
finish = 0;
if(buf[i] == ISO_amp) {
finish = 1;
} else if(buf[i] == ISO_equal) {
/* Don't accept an '=' while reading a val */
state = PARSE_POST_STATE_ERROR;
} else {
/* Make sure we don't overshoot key's boundary */
if(val_len <= PARSE_POST_MAX_POS) {
val[val_len] = buf[i];
val_len++;
/* Last character of the last chunk */
if((i == buf_len - 1) && (last_chunk == 1)) {
finish = 1;
}
} else {
/* Not enough space for the value. Abort */
state = PARSE_POST_STATE_ERROR;
}
}
if(finish == 1) {
/*
* Done reading a key=value pair, either because we encountered an amp
* or because we reached the end of the message body.
*
* First, unescape the value.
*
* Then invoke handlers. We will bail out with PARSE_POST_STATE_ERROR,
* unless the key-val gets correctly processed
*/
url_unescape(val, val_len, val_escaped, PARSE_POST_BUF_SIZES);
val_len = strlen(val_escaped);
for(handler = list_head(post_handlers); handler != NULL;
handler = list_item_next((void *)handler)) {
if(handler->handler != NULL) {
finish = handler->handler(key, key_len, val_escaped, val_len);
}
if(finish == HTTPD_SIMPLE_POST_HANDLER_ERROR) {
state = PARSE_POST_STATE_ERROR;
break;
} else if(finish == HTTPD_SIMPLE_POST_HANDLER_OK) {
/* Restart the state machine to expect the next pair */
state = PARSE_POST_STATE_MORE;
/*
* At least one handler returned OK, therefore we must generate a
* new config event when we're done.
*/
config_ok = 1;
break;
}
/* Else, continue */
}
}
break;
case PARSE_POST_STATE_ERROR:
/* If we entered the error state earlier, do nothing */
return;
default:
break;
}
}
}
/*---------------------------------------------------------------------------*/
static httpd_simple_script_t
get_script(const char *name)
{
page_t *page;
for(page = list_head(pages_list); page != NULL;
page = list_item_next(page)) {
if(strncmp(name, page->filename, strlen(page->filename)) == 0) {
return page->script;
}
}
return NULL;
}
/*---------------------------------------------------------------------------*/
static
PT_THREAD(send_string(struct httpd_state *s, const char *str))
{
PSOCK_BEGIN(&s->sout);
SEND_STRING(&s->sout, str);
PSOCK_END(&s->sout);
}
/*---------------------------------------------------------------------------*/
static
PT_THREAD(send_headers(struct httpd_state *s, const char *statushdr,
const char *content_type, const char *redir,
const char **additional))
{
PT_BEGIN(&s->generate_pt);
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 0, statushdr));
for(s->ptr = http_header_srv_str; *(s->ptr) != NULL; s->ptr++) {
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 0, *(s->ptr)));
}
if(redir) {
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "Location: %s\r\n", redir));
}
if(additional) {
for(s->ptr = additional; *(s->ptr) != NULL; s->ptr++) {
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 0, *(s->ptr)));
}
}
PT_WAIT_THREAD(&s->generate_pt,
enqueue_chunk(s, 0, "Content-type: %s; ", content_type));
PT_WAIT_THREAD(&s->generate_pt, enqueue_chunk(s, 1, "charset=UTF-8\r\n\r\n"));
PT_END(&s->generate_pt);
}
/*---------------------------------------------------------------------------*/
static
PT_THREAD(handle_output(struct httpd_state *s))
{
PT_BEGIN(&s->outputpt);
s->script = NULL;
PT_INIT(&s->generate_pt);
PT_INIT(&s->top_matter_pt);
if(s->request_type == REQUEST_TYPE_POST) {
if(s->return_code == RETURN_CODE_OK) {
PT_WAIT_THREAD(&s->outputpt, send_headers(s, http_header_302,
http_content_type_plain,
s->filename,
NULL));
} else if(s->return_code == RETURN_CODE_LR) {
PT_WAIT_THREAD(&s->outputpt, send_headers(s, http_header_411,
http_content_type_plain,
NULL,
http_header_con_close));
PT_WAIT_THREAD(&s->outputpt, send_string(s, "Content-Length Required\n"));
} else if(s->return_code == RETURN_CODE_TL) {
PT_WAIT_THREAD(&s->outputpt, send_headers(s, http_header_413,
http_content_type_plain,
NULL,
http_header_con_close));
PT_WAIT_THREAD(&s->outputpt, send_string(s, "Content-Length too Large\n"));
} else if(s->return_code == RETURN_CODE_SU) {
PT_WAIT_THREAD(&s->outputpt, send_headers(s, http_header_503,
http_content_type_plain,
NULL,
http_header_con_close));
PT_WAIT_THREAD(&s->outputpt, send_string(s, "Service Unavailable\n"));
} else {
PT_WAIT_THREAD(&s->outputpt, send_headers(s, http_header_400,
http_content_type_plain,
NULL,
http_header_con_close));
PT_WAIT_THREAD(&s->outputpt, send_string(s, "Bad Request\n"));
}
} else if(s->request_type == REQUEST_TYPE_GET) {
s->script = get_script(&s->filename[1]);
if(s->script == NULL) {
strncpy(s->filename, "/notfound.html", sizeof(s->filename));
PT_WAIT_THREAD(&s->outputpt, send_headers(s, http_header_404,
http_content_type_html,
NULL,
http_header_con_close));
PT_WAIT_THREAD(&s->outputpt,
send_string(s, NOT_FOUND));
uip_close();
PT_EXIT(&s->outputpt);
} else {
PT_WAIT_THREAD(&s->outputpt, send_headers(s, http_header_200,
http_content_type_html,
NULL,
http_header_con_close));
PT_WAIT_THREAD(&s->outputpt, s->script(s));
}
}
s->script = NULL;
PSOCK_CLOSE(&s->sout);
PT_END(&s->outputpt);
}
/*---------------------------------------------------------------------------*/
static
PT_THREAD(handle_input(struct httpd_state *s))
{
PSOCK_BEGIN(&s->sin);
PSOCK_READTO(&s->sin, ISO_space);
if(strncasecmp(s->inputbuf, http_get, 4) == 0) {
s->request_type = REQUEST_TYPE_GET;
PSOCK_READTO(&s->sin, ISO_space);
if(s->inputbuf[0] != ISO_slash) {
PSOCK_CLOSE_EXIT(&s->sin);
}
if(s->inputbuf[1] == ISO_space) {
strncpy(s->filename, http_index_html, sizeof(s->filename));
} else {
s->inputbuf[PSOCK_DATALEN(&s->sin) - 1] = 0;
strncpy(s->filename, s->inputbuf, sizeof(s->filename));
}
} else if(strncasecmp(s->inputbuf, http_post, 5) == 0) {
s->request_type = REQUEST_TYPE_POST;
PSOCK_READTO(&s->sin, ISO_space);
if(s->inputbuf[0] != ISO_slash) {
PSOCK_CLOSE_EXIT(&s->sin);
}
s->inputbuf[PSOCK_DATALEN(&s->sin) - 1] = 0;
strncpy(s->filename, s->inputbuf, sizeof(s->filename));
/* POST: Read out the rest of the line and ignore it */
PSOCK_READTO(&s->sin, ISO_nl);
/*
* Start parsing headers. We look for Content-Length and ignore everything
* else until we hit the start of the message body.
*
* We will return 411 if the client doesn't send Content-Length and 413
* if Content-Length is too high
*/
s->content_length = 0;
s->return_code = RETURN_CODE_LR;
do {
s->inputbuf[PSOCK_DATALEN(&s->sin)] = 0;
/* We anticipate a content length */
if((PSOCK_DATALEN(&s->sin) > 14) &&
strncasecmp(s->inputbuf, "Content-Length:", 15) == 0) {
char *val_start = &s->inputbuf[15];
s->content_length = atoi(val_start);
/* So far so good */
s->return_code = RETURN_CODE_OK;
}
PSOCK_READTO(&s->sin, ISO_nl);
} while(PSOCK_DATALEN(&s->sin) != 2);
/*
* Done reading headers.
* Reject content length greater than CONTENT_LENGTH_MAX bytes
*/
if(s->content_length > CONTENT_LENGTH_MAX) {
s->content_length = 0;
s->return_code = RETURN_CODE_TL;
}
if(s->return_code == RETURN_CODE_OK) {
/* Acceptable Content Length. Try to obtain a lock */
lock_obtain(s);
if(lock == s) {
state = PARSE_POST_STATE_INIT;
} else {
s->return_code = RETURN_CODE_SU;
}
}
/* Parse the message body, unless we have detected an error. */
while(s->content_length > 0 && lock == s &&
s->return_code == RETURN_CODE_OK) {
PSOCK_READBUF_LEN(&s->sin, s->content_length);
s->content_length -= PSOCK_DATALEN(&s->sin);
/* Parse the message body */
parse_post_request_chunk(s->inputbuf, PSOCK_DATALEN(&s->sin),
(s->content_length == 0));
if(state == PARSE_POST_STATE_ERROR) {
/* Could not parse: Bad Request and stop parsing */
s->return_code = RETURN_CODE_BR;
}
}
/*
* Done. If our return code is OK but the state machine is not in
* STATE_MORE, it means that the message body ended half-way reading a key
* or value. Set 'Bad Request'
*/
if(s->return_code == RETURN_CODE_OK && state != PARSE_POST_STATE_MORE) {
s->return_code = RETURN_CODE_BR;
}
/* If the flag is set, we had at least 1 configuration value accepted */
if(config_ok) {
process_post(PROCESS_BROADCAST, httpd_simple_event_new_config, NULL);
}
config_ok = 0;
lock_release(s);
} else {
PSOCK_CLOSE_EXIT(&s->sin);
}
s->state = STATE_OUTPUT;
while(1) {
PSOCK_READTO(&s->sin, ISO_nl);
}
PSOCK_END(&s->sin);
}
/*---------------------------------------------------------------------------*/
static void
handle_connection(struct httpd_state *s)
{
handle_input(s);
if(s->state == STATE_OUTPUT) {
handle_output(s);
}
}
/*---------------------------------------------------------------------------*/
static void
appcall(void *state)
{
struct httpd_state *s = (struct httpd_state *)state;
if(uip_closed() || uip_aborted() || uip_timedout()) {
if(s != NULL) {
memset(s, 0, sizeof(struct httpd_state));
memb_free(&conns, s);
}
} else if(uip_connected()) {
s = (struct httpd_state *)memb_alloc(&conns);
if(s == NULL) {
uip_abort();
return;
}
tcp_markconn(uip_conn, s);
PSOCK_INIT(&s->sin, (uint8_t *)s->inputbuf, sizeof(s->inputbuf) - 1);
PSOCK_INIT(&s->sout, (uint8_t *)s->inputbuf, sizeof(s->inputbuf) - 1);
PT_INIT(&s->outputpt);
s->script = NULL;
s->state = STATE_WAITING;
timer_set(&s->timer, CLOCK_SECOND * 10);
handle_connection(s);
} else if(s != NULL) {
if(uip_poll()) {
if(timer_expired(&s->timer)) {
uip_abort();
memset(s, 0, sizeof(struct httpd_state));
memb_free(&conns, s);
}
} else {
timer_restart(&s->timer);
}
handle_connection(s);
} else {
uip_abort();
}
}
/*---------------------------------------------------------------------------*/
static void
init(void)
{
tcp_listen(UIP_HTONS(80));
memb_init(&conns);
list_add(pages_list, &http_index_page);
list_add(pages_list, &http_dev_cfg_page);
#if CC26XX_WEB_DEMO_NET_UART
list_add(pages_list, &http_net_cfg_page);
#endif
#if CC26XX_WEB_DEMO_MQTT_CLIENT
list_add(pages_list, &http_mqtt_cfg_page);
#endif
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(httpd_simple_process, ev, data)
{
PROCESS_BEGIN();
printf("CC26XX Web Server\n");
httpd_simple_event_new_config = process_alloc_event();
init();
snprintf(http_mqtt_a, IBM_QUICKSTART_LINK_LEN,
"[ <a href=\"http://quickstart.internetofthings.ibmcloud.com/#/device/"
"%02x%02x%02x%02x%02x%02x/sensor/\">IBM Quickstart</a> ]",
linkaddr_node_addr.u8[0], linkaddr_node_addr.u8[1],
linkaddr_node_addr.u8[2], linkaddr_node_addr.u8[5],
linkaddr_node_addr.u8[6], linkaddr_node_addr.u8[7]);
while(1) {
PROCESS_WAIT_EVENT_UNTIL(ev == tcpip_event);
appcall(data);
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
/**
* @}
*/
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