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Diffstat (limited to 'nuttx/netutils/webserver/httpd.c')
-rw-r--r-- | nuttx/netutils/webserver/httpd.c | 498 |
1 files changed, 0 insertions, 498 deletions
diff --git a/nuttx/netutils/webserver/httpd.c b/nuttx/netutils/webserver/httpd.c deleted file mode 100644 index 9322b58dc..000000000 --- a/nuttx/netutils/webserver/httpd.c +++ /dev/null @@ -1,498 +0,0 @@ -/**************************************************************************** - * netutils/webserver/httpd.c - * httpd Web server - * - * Copyright (C) 2007-2009, 2011 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <spudmonkey@racsa.co.cr> - * - * This is a leverage of similar logic from uIP: - * - * Author: Adam Dunkels <adam@sics.se> - * Copyright (c) 2004, Adam Dunkels. - * All rights reserved. - * - * 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. - * - * 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. - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> - -#include <sys/types.h> -#include <sys/socket.h> -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <string.h> -#include <pthread.h> -#include <errno.h> -#include <debug.h> - -#include <net/uip/uip.h> -#include <apps/netutils/uiplib.h> -#include <apps/netutils/httpd.h> - -#include "httpd.h" -#include "httpd_cgi.h" - -/**************************************************************************** - * Pre-processor Definitions - ****************************************************************************/ - -#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 - -/**************************************************************************** - * Private Data - ****************************************************************************/ - -static const char g_httpcontenttypebinary[] = "Content-type: application/octet-stream\r\n\r\n"; -static const char g_httpcontenttypecss[] = "Content-type: text/css\r\n\r\n"; -static const char g_httpcontenttypegif[] = "Content-type: image/gif\r\n\r\n"; -static const char g_httpcontenttypehtml[] = "Content-type: text/html\r\n\r\n"; -static const char g_httpcontenttypejpg[] = "Content-type: image/jpeg\r\n\r\n"; -static const char g_httpcontenttypeplain[] = "Content-type: text/plain\r\n\r\n"; -static const char g_httpcontenttypepng[] = "Content-type: image/png\r\n\r\n"; - -static const char g_httpextensionhtml[] = ".html"; -static const char g_httpextensionshtml[] = ".shtml"; -static const char g_httpextensioncss[] = ".css"; -static const char g_httpextensionpng[] = ".png"; -static const char g_httpextensiongif[] = ".gif"; -static const char g_httpextensionjpg[] = ".jpg"; - -static const char g_http404path[] = "/404.html"; -static const char g_httpindexpath[] = "/index.html"; - -static const char g_httpcmdget[] = "GET "; - -static const char g_httpheader200[] = - "HTTP/1.0 200 OK\r\n" - "Server: uIP/1.0 http://www.sics.se/~adam/uip/\r\n" - "Connection: close\r\n"; - -static const char g_httpheader404[] = - "HTTP/1.0 404 Not found\r\n" - "Server: uIP/1.0 http://www.sics.se/~adam/uip/\r\n" - "Connection: close\r\n"; - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -#ifdef CONFIG_NETUTILS_HTTPD_DUMPBUFFER -static void httpd_dumpbuffer(FAR const char *msg, FAR const char *buffer, unsigned int nbytes) -{ - /* CONFIG_DEBUG, CONFIG_DEBUG_VERBOSE, and CONFIG_DEBUG_NET have to be - * defined or the following does nothing. - */ - - nvdbgdumpbuffer(msg, (FAR const uint8_t*)buffer, nbytes); -} -#else -# define httpd_dumpbuffer(msg,buffer,nbytes) -#endif - -#ifdef CONFIG_NETUTILS_HTTPD_DUMPPSTATE -static void httpd_dumppstate(struct httpd_state *pstate, const char *msg) -{ -#if defined(CONFIG_DEBUG) && defined(CONFIG_DEBUG_VERBOSE) && defined(CONFIG_DEBUG_NET) - nvdbg("[%d] pstate(%p): [%s]\n", pstate->ht_sockfd, pstate, msg); - nvdbg(" filename: [%s]\n", pstate->ht_filename); - nvdbg(" htfile len: %d\n", pstate->ht_file.len); - nvdbg(" sockfd: %d\n", pstate->ht_sockfd); - nvdbg(" scriptptr: %p\n", pstate->ht_scriptptr); - nvdbg(" scriptlen: %d\n", pstate->ht_scriptlen); - nvdbg(" sndlen: %d\n", pstate->ht_sndlen); -#endif -} -#else -# define httpd_dumppstate(pstate, msg) -#endif - -static void next_scriptstate(struct httpd_state *pstate) -{ - char *p; - p = strchr(pstate->ht_scriptptr, ISO_nl) + 1; - pstate->ht_scriptlen -= (unsigned short)(p - pstate->ht_scriptptr); - pstate->ht_scriptptr = p; -} - -static int handle_script(struct httpd_state *pstate) -{ - int len; - char *ptr; - - while (pstate->ht_file.len > 0) - { - /* Check if we should start executing a script */ - - if (*pstate->ht_file.data == ISO_percent && *(pstate->ht_file.data + 1) == ISO_bang) - { - pstate->ht_scriptptr = pstate->ht_file.data + 3; - pstate->ht_scriptlen = pstate->ht_file.len - 3; - if (*(pstate->ht_scriptptr - 1) == ISO_colon) - { - httpd_fs_open(pstate->ht_scriptptr + 1, &pstate->ht_file); - send(pstate->ht_sockfd, pstate->ht_file.data, pstate->ht_file.len, 0); - } - else - { - httpd_cgi(pstate->ht_scriptptr)(pstate, pstate->ht_scriptptr); - } - next_scriptstate(pstate); - - /* The script is over, so we reset the pointers and continue - * sending the rest of the file - */ - - pstate->ht_file.data = pstate->ht_scriptptr; - pstate->ht_file.len = pstate->ht_scriptlen; - } - else - { - /* See if we find the start of script marker in the block of HTML - * to be sent - */ - - if (pstate->ht_file.len > HTTPD_IOBUFFER_SIZE) - { - len = HTTPD_IOBUFFER_SIZE; - } - else - { - len = pstate->ht_file.len; - } - - if (*pstate->ht_file.data == ISO_percent) - { - ptr = strchr(pstate->ht_file.data + 1, ISO_percent); - } - else - { - ptr = strchr(pstate->ht_file.data, ISO_percent); - } - - if (ptr != NULL && ptr != pstate->ht_file.data) - { - len = (int)(ptr - pstate->ht_file.data); - if (len >= HTTPD_IOBUFFER_SIZE) - { - len = HTTPD_IOBUFFER_SIZE; - } - } - send(pstate->ht_sockfd, pstate->ht_file.data, len, 0); - pstate->ht_file.data += len; - pstate->ht_file.len -= len; - } - } - return OK; -} - -static int httpd_addchunk(struct httpd_state *pstate, const char *buffer, int len) -{ - int newlen; - int chunklen; - int ret; - - do - { - /* Determine the size of the next chunk so that it fits into the buffer */ - - newlen = pstate->ht_sndlen + len; - if (newlen > HTTPD_IOBUFFER_SIZE) - { - newlen = HTTPD_IOBUFFER_SIZE; - chunklen = HTTPD_IOBUFFER_SIZE - pstate->ht_sndlen; - } - else - { - chunklen = len; - } - nvdbg("[%d] sndlen=%d len=%d newlen=%d chunklen=%d\n", - pstate->ht_sockfd, pstate->ht_sndlen, len, newlen, chunklen); - - /* Copy that chunk into the send buffer */ - - memcpy(&pstate->ht_buffer[pstate->ht_sndlen], buffer, chunklen); - - if (newlen >= HTTPD_IOBUFFER_SIZE) - { - /* The buffer is full.. Send what we have and reset to send again */ - - httpd_dumpbuffer("Outgoing buffer", pstate->ht_buffer, newlen); - ret = send(pstate->ht_sockfd, pstate->ht_buffer, newlen, 0); - if (ret < 0) - { - return ret; - } - - newlen = 0; - } - - pstate->ht_sndlen = newlen; - len -= chunklen; - buffer += chunklen; - } - while (len > 0); - return OK; -} - -static int send_headers(struct httpd_state *pstate, const char *statushdr, int len) -{ - char *ptr; - int ret; - - ret = httpd_addchunk(pstate, statushdr, len); - if (ret < 0) - { - return ret; - } - - ptr = strrchr(pstate->ht_filename, ISO_period); - if (ptr == NULL) - { - ret = httpd_addchunk(pstate, g_httpcontenttypebinary, strlen(g_httpcontenttypebinary)); - } - else if (strncmp(g_httpextensionhtml, ptr, strlen(g_httpextensionhtml)) == 0 || - strncmp(g_httpextensionshtml, ptr, strlen(g_httpextensionshtml)) == 0) - { - ret = httpd_addchunk(pstate, g_httpcontenttypehtml, strlen(g_httpcontenttypehtml)); - } - else if (strncmp(g_httpextensioncss, ptr, strlen(g_httpextensioncss)) == 0) - { - ret = httpd_addchunk(pstate, g_httpcontenttypecss, strlen(g_httpcontenttypecss)); - } - else if (strncmp(g_httpextensionpng, ptr, strlen(g_httpextensionpng)) == 0) - { - ret = httpd_addchunk(pstate, g_httpcontenttypepng, strlen(g_httpcontenttypepng)); - } - else if (strncmp(g_httpextensiongif, ptr, strlen(g_httpextensiongif)) == 0) - { - ret = httpd_addchunk(pstate, g_httpcontenttypegif, strlen(g_httpcontenttypegif)); - } - else if (strncmp(g_httpextensionjpg, ptr, strlen(g_httpextensionjpg)) == 0) - { - ret = httpd_addchunk(pstate, g_httpcontenttypejpg, strlen(g_httpcontenttypejpg)); - } - else - { - ret = httpd_addchunk(pstate, g_httpcontenttypeplain, strlen(g_httpcontenttypeplain)); - } - - return ret; -} - -static int httpd_sendfile(struct httpd_state *pstate) -{ - char *ptr; - int ret = ERROR; - - pstate->ht_sndlen = 0; - - nvdbg("[%d] sending file '%s'\n", pstate->ht_sockfd, pstate->ht_filename); - if (!httpd_fs_open(pstate->ht_filename, &pstate->ht_file)) - { - ndbg("[%d] '%s' not found\n", pstate->ht_sockfd, pstate->ht_filename); - memcpy(pstate->ht_filename, g_http404path, strlen(g_http404path)); - httpd_fs_open(g_http404path, &pstate->ht_file); - if (send_headers(pstate, g_httpheader404, strlen(g_httpheader404)) == OK) - { - ret = httpd_addchunk(pstate, pstate->ht_file.data, pstate->ht_file.len); - } - } - else - { - if (send_headers(pstate, g_httpheader200, strlen(g_httpheader200)) == OK) - { - ptr = strchr(pstate->ht_filename, ISO_period); - if (ptr != NULL && - strncmp(ptr, g_httpextensionshtml, strlen(g_httpextensionshtml)) == 0) - { - ret = handle_script(pstate); - } - else - { - ret = httpd_addchunk(pstate, pstate->ht_file.data, pstate->ht_file.len); - } - } - } - - /* Send anything remaining in the buffer */ - - if (ret == OK && pstate->ht_sndlen > 0) - { - httpd_dumpbuffer("Outgoing buffer", pstate->ht_buffer, pstate->ht_sndlen); - if (send(pstate->ht_sockfd, pstate->ht_buffer, pstate->ht_sndlen, 0) < 0) - { - ret = ERROR; - } - } - - return ret; -} - -static inline int httpd_cmd(struct httpd_state *pstate) -{ - ssize_t recvlen; - int i; - - /* Get the next HTTP command. We will handle only GET */ - - recvlen = recv(pstate->ht_sockfd, pstate->ht_buffer, HTTPD_IOBUFFER_SIZE, 0); - if (recvlen < 0) - { - ndbg("[%d] recv failed: %d\n", pstate->ht_sockfd, errno); - return ERROR; - } - httpd_dumpbuffer("Incoming buffer", pstate->ht_buffer, recvlen); - - /* We will handle only GET */ - - if (strncmp(pstate->ht_buffer, g_httpcmdget, strlen(g_httpcmdget)) != 0) - { - ndbg("[%d] Unsupported command\n", pstate->ht_sockfd); - return ERROR; - } - - /* Get the name of the file to provide */ - - if (pstate->ht_buffer[4] != ISO_slash) - { - ndbg("[%d] Missing path\n", pstate->ht_sockfd); - return ERROR; - } - else if (pstate->ht_buffer[5] == ISO_space) - { - strncpy(pstate->ht_filename, g_httpindexpath, strlen(g_httpindexpath)); - } - else - { - for (i = 0; - i < (HTTPD_MAX_FILENAME-1) && pstate->ht_buffer[i+4] != ISO_space; - i++) - { - pstate->ht_filename[i] = pstate->ht_buffer[i+4]; - } - pstate->ht_filename[i]='\0'; - } - nvdbg("[%d] Filename: %s\n", pstate->ht_sockfd, pstate->ht_filename); - - /* Then send the file */ - - return httpd_sendfile(pstate); -} - -/**************************************************************************** - * Name: httpd_handler - * - * Description: - * Each time a new connection to port 80 is made, a new thread is created - * that begins at this entry point. There should be exactly one argument - * and it should be the socket descriptor (+1). - * - ****************************************************************************/ - -static void *httpd_handler(void *arg) -{ - struct httpd_state *pstate = (struct httpd_state *)malloc(sizeof(struct httpd_state)); - int sockfd = (int)arg; - int ret = ERROR; - - nvdbg("[%d] Started\n", sockfd); - - /* Verify that the state structure was successfully allocated */ - - if (pstate) - { - /* Re-initialize the thread state structure */ - - memset(pstate, 0, sizeof(struct httpd_state)); - pstate->ht_sockfd = sockfd; - - /* Then handle the next httpd command */ - - ret = httpd_cmd(pstate); - - /* End of command processing -- Clean up and exit */ - - free(pstate); - } - - /* Exit the task */ - - nvdbg("[%d] Exitting\n", sockfd); - close(sockfd); - return NULL; -} - -/**************************************************************************** - * Public Functions - ****************************************************************************/ -/**************************************************************************** - * Name: httpd_listen - * - * Description: - * This is the main processing thread for the webserver. It never returns - * unless an error occurs - * - ****************************************************************************/ - -int httpd_listen(void) -{ - /* Execute httpd_handler on each connection to port 80 */ - - uip_server(HTONS(80), httpd_handler, CONFIG_NETUTILS_HTTPDSTACKSIZE); - - /* uip_server only returns on errors */ - - return ERROR; -} - -/**************************************************************************** - * Name: httpd_init - * - * Description: - * This function initializes the web server and should be called at system - * boot-up. - * - ****************************************************************************/ - -void httpd_init(void) -{ -} |