From a6163888f3c56123b1db313743c6147ba498732c Mon Sep 17 00:00:00 2001 From: Yuval Adam Date: Fri, 8 Aug 2014 14:42:07 +0300 Subject: Add third_party libs --- .../Common/ethernet/FreeTCPIP/apps/httpd/httpd.c | 400 +++++++++++++++++++++ 1 file changed, 400 insertions(+) create mode 100644 third_party/FreeRTOS/Demo/Common/ethernet/FreeTCPIP/apps/httpd/httpd.c (limited to 'third_party/FreeRTOS/Demo/Common/ethernet/FreeTCPIP/apps/httpd/httpd.c') diff --git a/third_party/FreeRTOS/Demo/Common/ethernet/FreeTCPIP/apps/httpd/httpd.c b/third_party/FreeRTOS/Demo/Common/ethernet/FreeTCPIP/apps/httpd/httpd.c new file mode 100644 index 0000000..99564a9 --- /dev/null +++ b/third_party/FreeRTOS/Demo/Common/ethernet/FreeTCPIP/apps/httpd/httpd.c @@ -0,0 +1,400 @@ +/** + * \addtogroup apps + * @{ + */ + +/** + * \defgroup httpd Web server + * @{ + * The uIP web server is a very simplistic implementation of an HTTP + * server. It can serve web pages and files from a read-only ROM + * filesystem, and provides a very small scripting language. + + */ + +/** + * \file + * Web server + * \author + * Adam Dunkels + */ + +/* + * Copyright (c) 2004, 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. 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. + * + * This file is part of the uIP TCP/IP stack. + * + * Author: Adam Dunkels + * + * $Id: httpd.c,v 1.2 2006/06/11 21:46:38 adam Exp $ + */ +#include "net/uip.h" +#include "apps/httpd/httpd.h" +#include "apps/httpd/httpd-fs.h" +#include "apps/httpd/httpd-cgi.h" +#include "apps/httpd/http-strings.h" + +#include + +#define STATE_WAITING 0 +#define STATE_OUTPUT 1 + +#define ISO_nl 0x0a +#define ISO_space 0x20 +#define ISO_bang 0x21 +#define ISO_percent 0x25 +#define ISO_period 0x2e +#define ISO_slash 0x2f +#define ISO_colon 0x3a + +/*---------------------------------------------------------------------------*/ +static unsigned short generate_part_of_file( void *state ) +{ + struct httpd_state *s = ( struct httpd_state * ) state; + + if( s->file.len > uip_mss() ) + { + s->len = uip_mss(); + } + else + { + s->len = s->file.len; + } + + memcpy( uip_appdata, s->file.data, s->len ); + + return s->len; +} + +/*---------------------------------------------------------------------------*/ +static PT_THREAD( send_file ( struct httpd_state *s ) ) +{ + PSOCK_BEGIN( &s->sout ); + + ( void ) PT_YIELD_FLAG; + + do + { + PSOCK_GENERATOR_SEND( &s->sout, generate_part_of_file, s ); + s->file.len -= s->len; + s->file.data += s->len; + } while( s->file.len > 0 ); + + PSOCK_END( &s->sout ); +} + +/*---------------------------------------------------------------------------*/ +static PT_THREAD( send_part_of_file ( struct httpd_state *s ) ) +{ + PSOCK_BEGIN( &s->sout ); + ( void ) PT_YIELD_FLAG; + + PSOCK_SEND( &s->sout, s->file.data, s->len ); + + PSOCK_END( &s->sout ); +} + +/*---------------------------------------------------------------------------*/ +static void next_scriptstate( struct httpd_state *s ) +{ + char *p; + p = strchr( s->scriptptr, ISO_nl ) + 1; + s->scriptlen -= ( unsigned short ) ( p - s->scriptptr ); + s->scriptptr = p; +} + +/*---------------------------------------------------------------------------*/ +static PT_THREAD( handle_script ( struct httpd_state *s ) ) +{ + char *ptr; + + PT_BEGIN( &s->scriptpt ); + ( void ) PT_YIELD_FLAG; + while( s->file.len > 0 ) + { + /* Check if we should start executing a script. */ + if( *s->file.data == ISO_percent && *(s->file.data + 1) == ISO_bang ) + { + s->scriptptr = s->file.data + 3; + s->scriptlen = s->file.len - 3; + if( *(s->scriptptr - 1) == ISO_colon ) + { + httpd_fs_open( s->scriptptr + 1, &s->file ); + PT_WAIT_THREAD( &s->scriptpt, send_file(s) ); + } + else + { + PT_WAIT_THREAD( &s->scriptpt, httpd_cgi(s->scriptptr) (s, s->scriptptr) ); + } + + next_scriptstate( s ); + + /* The script is over, so we reset the pointers and continue + sending the rest of the file. */ + s->file.data = s->scriptptr; + s->file.len = s->scriptlen; + } + else + { + /* See if we find the start of script marker in the block of HTML + to be sent. */ + if( s->file.len > uip_mss() ) + { + s->len = uip_mss(); + } + else + { + s->len = s->file.len; + } + + if( *s->file.data == ISO_percent ) + { + ptr = strchr( s->file.data + 1, ISO_percent ); + } + else + { + ptr = strchr( s->file.data, ISO_percent ); + } + + if( ptr != NULL && ptr != s->file.data ) + { + s->len = ( int ) ( ptr - s->file.data ); + if( s->len >= uip_mss() ) + { + s->len = uip_mss(); + } + } + + PT_WAIT_THREAD( &s->scriptpt, send_part_of_file(s) ); + s->file.data += s->len; + s->file.len -= s->len; + } + } + + PT_END( &s->scriptpt ); +} + +/*---------------------------------------------------------------------------*/ +static PT_THREAD( send_headers ( struct httpd_state *s, const char *statushdr ) ) +{ + char *ptr; + + PSOCK_BEGIN( &s->sout ); + ( void ) PT_YIELD_FLAG; + PSOCK_SEND_STR( &s->sout, statushdr ); + + ptr = strrchr( s->filename, ISO_period ); + if( ptr == NULL ) + { + PSOCK_SEND_STR( &s->sout, http_content_type_binary ); + } + else if( strncmp(http_html, ptr, 5) == 0 || strncmp(http_shtml, ptr, 6) == 0 ) + { + PSOCK_SEND_STR( &s->sout, http_content_type_html ); + } + else if( strncmp(http_css, ptr, 4) == 0 ) + { + PSOCK_SEND_STR( &s->sout, http_content_type_css ); + } + else if( strncmp(http_png, ptr, 4) == 0 ) + { + PSOCK_SEND_STR( &s->sout, http_content_type_png ); + } + else if( strncmp(http_gif, ptr, 4) == 0 ) + { + PSOCK_SEND_STR( &s->sout, http_content_type_gif ); + } + else if( strncmp(http_jpg, ptr, 4) == 0 ) + { + PSOCK_SEND_STR( &s->sout, http_content_type_jpg ); + } + else + { + PSOCK_SEND_STR( &s->sout, http_content_type_plain ); + } + + PSOCK_END( &s->sout ); +} + +/*---------------------------------------------------------------------------*/ +static PT_THREAD( handle_output ( struct httpd_state *s ) ) +{ + char *ptr; + + PT_BEGIN( &s->outputpt ); + ( void ) PT_YIELD_FLAG; + if( !httpd_fs_open(s->filename, &s->file) ) + { + httpd_fs_open( http_404_html, &s->file ); + strcpy( s->filename, http_404_html ); + PT_WAIT_THREAD( &s->outputpt, send_headers(s, http_header_404) ); + PT_WAIT_THREAD( &s->outputpt, send_file(s) ); + } + else + { + PT_WAIT_THREAD( &s->outputpt, send_headers(s, http_header_200) ); + ptr = strchr( s->filename, ISO_period ); + if( ptr != NULL && strncmp(ptr, http_shtml, 6) == 0 ) + { + PT_INIT( &s->scriptpt ); + PT_WAIT_THREAD( &s->outputpt, handle_script(s) ); + } + else + { + PT_WAIT_THREAD( &s->outputpt, send_file(s) ); + } + } + + PSOCK_CLOSE( &s->sout ); + PT_END( &s->outputpt ); +} + +/*---------------------------------------------------------------------------*/ +static PT_THREAD( handle_input ( struct httpd_state *s ) ) +{ + PSOCK_BEGIN( &s->sin ); + ( void ) PT_YIELD_FLAG; + PSOCK_READTO( &s->sin, ISO_space ); + + if( strncmp(s->inputbuf, http_get, 4) != 0 ) + { + PSOCK_CLOSE_EXIT( &s->sin ); + } + + 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; + + /* Process any form input being sent to the server. */ + #if UIP_CONF_PROCESS_HTTPD_FORMS == 1 + { + extern void vApplicationProcessFormInput( char *pcInputString ); + vApplicationProcessFormInput( s->inputbuf ); + } + #endif + + strncpy( s->filename, &s->inputbuf[0], sizeof(s->filename) ); + } + + /* httpd_log_file(uip_conn->ripaddr, s->filename);*/ + s->state = STATE_OUTPUT; + + while( 1 ) + { + PSOCK_READTO( &s->sin, ISO_nl ); + + if( strncmp(s->inputbuf, http_referer, 8) == 0 ) + { + s->inputbuf[PSOCK_DATALEN( &s->sin ) - 2] = 0; + + /* httpd_log(&s->inputbuf[9]);*/ + } + } + + PSOCK_END( &s->sin ); +} + +/*---------------------------------------------------------------------------*/ +static void handle_connection( struct httpd_state *s ) +{ + handle_input( s ); + if( s->state == STATE_OUTPUT ) + { + handle_output( s ); + } +} + +/*---------------------------------------------------------------------------*/ +void httpd_appcall( void ) +{ + struct httpd_state *s = ( struct httpd_state * ) &( uip_conn->appstate ); + + if( uip_closed() || uip_aborted() || uip_timedout() ) + { + } + else if( uip_connected() ) + { + PSOCK_INIT( &s->sin, s->inputbuf, sizeof(s->inputbuf) - 1 ); + PSOCK_INIT( &s->sout, s->inputbuf, sizeof(s->inputbuf) - 1 ); + PT_INIT( &s->outputpt ); + s->state = STATE_WAITING; + + /* timer_set(&s->timer, CLOCK_SECOND * 100);*/ + s->timer = 0; + handle_connection( s ); + } + else if( s != NULL ) + { + if( uip_poll() ) + { + ++s->timer; + if( s->timer >= 20 ) + { + uip_abort(); + } + } + else + { + s->timer = 0; + } + + handle_connection( s ); + } + else + { + uip_abort(); + } +} + +/*---------------------------------------------------------------------------*/ + +/** + * \brief Initialize the web server + * + * This function initializes the web server and should be + * called at system boot-up. + */ +void httpd_init( void ) +{ + uip_listen( HTONS(80) ); +} + +/*---------------------------------------------------------------------------*/ + +/** @} */ -- cgit v1.3.1