netutils/webserver/httpd_dirlist.c - nuttx-apps - Git at Google

 /****************************************************************************
  * apps/netutils/webserver/httpd_dirlist.c
  *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
  * ASF licenses this file to you under the Apache License, Version 2.0 (the
  * "License"); you may not use this file except in compliance with the
  * License.  You may obtain a copy of the License at
  *
  *   http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
  * License for the specific language governing permissions and limitations
  * under the License.
  *
  ****************************************************************************/

 /****************************************************************************
  * Included Files
  ****************************************************************************/

 #include <nuttx/config.h>

 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/utsname.h>
 #include <limits.h>
 #include <unistd.h>
 #include <fcntl.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <assert.h>
 #include <errno.h>
 #include <debug.h>
 #include <string.h>
 #include <dirent.h>
 #include <stdlib.h>

 #include "netutils/httpd.h"

 #include "httpd.h"

 /****************************************************************************
  * Pre-processor Definitions
  ****************************************************************************/

 #ifdef CONFIG_ARCH_BOARD_CUSTOM
 #  ifndef CONFIG_ARCH_BOARD_CUSTOM_NAME
 #    define BOARD_NAME g_unknown
 #  else
 #    define BOARD_NAME CONFIG_ARCH_BOARD_CUSTOM_NAME
 #  endif
 #else
 #  ifndef CONFIG_ARCH_BOARD
 #    define BOARD_NAME g_unknown
 #  else
 #    define BOARD_NAME CONFIG_ARCH_BOARD
 #  endif
 #endif

 #define BUF_SIZE 1024

 #define HEADER \
   "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 3.2 Final//EN\">\n" \
   "<html>\n" \
   "<head>\n"

 #define TITLE \
   " <title>Index of /%s</title>\n" \
   "</head>\n" \
   "<body>\n" \
   "<h2>Index of /%s</h2>\n" \
   "<table>\n"

 #define TABLE \
   " <tr><th valign=\"top\"></th><th>Name</a></th><th>Last modified</a>" \
   "</th><th>Size</a></th></tr>\n" \
   " <tr><th colspan=\"4\"><hr></th></tr>\n"

 #define PARENT \
   " <tr><td valign=\"top\"></td><td><a href=\"..\">../</a></td>\n" \
   " <td align=\"right\"> - </td>" \
   "<td align=\"right\"> - </td><td>&nbsp; </td></tr>\n"

 #define ENTRY                                                         \
   " <tr><td valign=\"top\"></td><td><a href=\"%s%s\">%s%s</a></td>\n" \
   " <td align=\"right\">%4d-%02d-%02d %02d:%02d</td>" \
   "<td align=\"right\"> %s </td><td>&nbsp; </td></tr>\n"

 #define FOOTER \
   " <tr><th colspan=\"4\"><hr></th></tr>\n" \
   "</table>\n" \
   "<address>uIP web server (%s %s %s %s %s) </address>\n" \
   "</body>\n" \
   "</html>\n"

 /****************************************************************************
  * Public Functions
  ****************************************************************************/

 /****************************************************************************
  * Name: httpd_is_file
  ****************************************************************************/

 bool httpd_is_file(FAR const char *filename)
 {
   char *path;
   int fd;
   bool ret = false;

   path = malloc(CONFIG_NAME_MAX);
   ASSERT(path);

   snprintf(path, CONFIG_NAME_MAX, "%s/%s",
            CONFIG_NETUTILS_HTTPD_PATH, filename);

   fd = open(path, O_RDONLY);

   if (-1 != fd)
     {
       close(fd);
       ret = true;
     }

   free(path);
   return ret;
 }

 /****************************************************************************
  * Name: httpd_dirlist
  ****************************************************************************/

 ssize_t httpd_dirlist(int outfd, FAR struct httpd_fs_file *file)
 {
   struct dirent *dent;
   struct utsname info;
   struct stat buf;
   struct tm tm;
   ssize_t total;
   ssize_t ret;
   char size[16];
   char *path;
   char *tmp;
   DIR *dir;

   total = 0;

   tmp = (char *)calloc(1, BUF_SIZE);
   ASSERT(tmp);

   /* exclude document root path */

   path = file->path + sizeof(CONFIG_NETUTILS_HTTPD_PATH);

   /* compose hdr/title/path/table and write them */

   if ('\0' == *path)
     {
       snprintf(tmp, BUF_SIZE, HEADER TITLE TABLE,
                "", "");
     }
   else
     {
       snprintf(tmp, BUF_SIZE, HEADER TITLE TABLE PARENT,
                path, path);
     }

   ret = write(outfd, tmp, strlen(tmp));

   if (-1 == ret)
     {
       goto errout;
     }

   total += ret;

   dir = opendir(file->path);

   if (NULL == dir)
     {
       goto errout_with_hdr;
     }

   while (true)
     {
       dent = readdir(dir);

       if (NULL == dent)
         {
           break;
         }

       ret = asprintf(&path, "%s/%s", file->path, dent->d_name);
       ASSERT(ret > 0 && path);

       /* call stat() to obtain modified time and size */

       ret = stat(path, &buf);
       ASSERT(0 == ret);

       free(path);
       localtime_r(&buf.st_mtime, &tm);

       /* compose an entry name for directory or file */

       if (dent->d_type == DTYPE_DIRECTORY)
         {
           snprintf(tmp, BUF_SIZE, ENTRY,
                    dent->d_name, "/", dent->d_name, "/",
                    tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
                    tm.tm_hour, tm.tm_min,
                    "-"
                    );
         }
       else
         {
           snprintf(size, sizeof(size), "%jd",
                    (uintmax_t)buf.st_size);

           snprintf(tmp, BUF_SIZE, ENTRY,
                    dent->d_name, "", dent->d_name, "",
                    tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
                    tm.tm_hour, tm.tm_min,
                    size
                    );
         }

       ret = write(outfd, tmp, strlen(tmp));

       if (-1 == ret)
         {
           break;
         }

       total += ret;
     }

   closedir(dir);

 errout_with_hdr:

   memset(&info, 0, sizeof(info));
   uname(&info);

   snprintf(tmp, BUF_SIZE, FOOTER,
            info.sysname,
            info.release,
            info.version,
            info.machine,
            BOARD_NAME);

   ret = write(outfd, tmp, strlen(tmp));

   if (-1 != ret)
     {
       total += ret;
     }

   ret = total;

 errout:

   free(tmp);
   return ret;
 }
	/****************************************************************************
	* apps/netutils/webserver/httpd_dirlist.c
	*
	* Licensed to the Apache Software Foundation (ASF) under one or more
	* contributor license agreements. See the NOTICE file distributed with
	* this work for additional information regarding copyright ownership. The
	* ASF licenses this file to you under the Apache License, Version 2.0 (the
	* "License"); you may not use this file except in compliance with the
	* License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
	* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
	* License for the specific language governing permissions and limitations
	* under the License.
	*
	****************************************************************************/

	/****************************************************************************
	* Included Files
	****************************************************************************/

	#include <nuttx/config.h>

	#include <sys/types.h>
	#include <sys/stat.h>
	#include <sys/utsname.h>
	#include <limits.h>
	#include <unistd.h>
	#include <fcntl.h>
	#include <stdint.h>
	#include <stdio.h>
	#include <assert.h>
	#include <errno.h>
	#include <debug.h>
	#include <string.h>
	#include <dirent.h>
	#include <stdlib.h>

	#include "netutils/httpd.h"

	#include "httpd.h"

	/****************************************************************************
	* Pre-processor Definitions
	****************************************************************************/

	#ifdef CONFIG_ARCH_BOARD_CUSTOM
	# ifndef CONFIG_ARCH_BOARD_CUSTOM_NAME
	# define BOARD_NAME g_unknown
	# else
	# define BOARD_NAME CONFIG_ARCH_BOARD_CUSTOM_NAME
	# endif
	#else
	# ifndef CONFIG_ARCH_BOARD
	# define BOARD_NAME g_unknown
	# else
	# define BOARD_NAME CONFIG_ARCH_BOARD
	# endif
	#endif

	#define BUF_SIZE 1024

	#define HEADER \
	"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 3.2 Final//EN\">\n" \
	"<html>\n" \
	"<head>\n"

	#define TITLE \
	" <title>Index of /%s</title>\n" \
	"</head>\n" \
	"<body>\n" \
	"<h2>Index of /%s</h2>\n" \
	"<table>\n"

	#define TABLE \
	" <tr><th valign=\"top\"></th><th>Name</a></th><th>Last modified</a>" \
	"</th><th>Size</a></th></tr>\n" \
	" <tr><th colspan=\"4\"><hr></th></tr>\n"

	#define PARENT \
	" <tr><td valign=\"top\"></td><td><a href=\"..\">../</a></td>\n" \
	" <td align=\"right\"> - </td>" \
	"<td align=\"right\"> - </td><td>  </td></tr>\n"

	#define ENTRY \
	" <tr><td valign=\"top\"></td><td><a href=\"%s%s\">%s%s</a></td>\n" \
	" <td align=\"right\">%4d-%02d-%02d %02d:%02d</td>" \
	"<td align=\"right\"> %s </td><td>  </td></tr>\n"

	#define FOOTER \
	" <tr><th colspan=\"4\"><hr></th></tr>\n" \
	"</table>\n" \
	"<address>uIP web server (%s %s %s %s %s) </address>\n" \
	"</body>\n" \
	"</html>\n"

	/****************************************************************************
	* Public Functions
	****************************************************************************/

	/****************************************************************************
	* Name: httpd_is_file
	****************************************************************************/

	bool httpd_is_file(FAR const char *filename)
	{
	char *path;
	int fd;
	bool ret = false;

	path = malloc(CONFIG_NAME_MAX);
	ASSERT(path);

	snprintf(path, CONFIG_NAME_MAX, "%s/%s",
	CONFIG_NETUTILS_HTTPD_PATH, filename);

	fd = open(path, O_RDONLY);

	if (-1 != fd)
	{
	close(fd);
	ret = true;
	}

	free(path);
	return ret;
	}

	/****************************************************************************
	* Name: httpd_dirlist
	****************************************************************************/

	ssize_t httpd_dirlist(int outfd, FAR struct httpd_fs_file *file)
	{
	struct dirent *dent;
	struct utsname info;
	struct stat buf;
	struct tm tm;
	ssize_t total;
	ssize_t ret;
	char size[16];
	char *path;
	char *tmp;
	DIR *dir;

	total = 0;

	tmp = (char *)calloc(1, BUF_SIZE);
	ASSERT(tmp);

	/* exclude document root path */

	path = file->path + sizeof(CONFIG_NETUTILS_HTTPD_PATH);

	/* compose hdr/title/path/table and write them */

	if ('\0' == *path)
	{
	snprintf(tmp, BUF_SIZE, HEADER TITLE TABLE,
	"", "");
	}
	else
	{
	snprintf(tmp, BUF_SIZE, HEADER TITLE TABLE PARENT,
	path, path);
	}

	ret = write(outfd, tmp, strlen(tmp));

	if (-1 == ret)
	{
	goto errout;
	}

	total += ret;

	dir = opendir(file->path);

	if (NULL == dir)
	{
	goto errout_with_hdr;
	}

	while (true)
	{
	dent = readdir(dir);

	if (NULL == dent)
	{
	break;
	}

	ret = asprintf(&path, "%s/%s", file->path, dent->d_name);
	ASSERT(ret > 0 && path);

	/* call stat() to obtain modified time and size */

	ret = stat(path, &buf);
	ASSERT(0 == ret);

	free(path);
	localtime_r(&buf.st_mtime, &tm);

	/* compose an entry name for directory or file */

	if (dent->d_type == DTYPE_DIRECTORY)
	{
	snprintf(tmp, BUF_SIZE, ENTRY,
	dent->d_name, "/", dent->d_name, "/",
	tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
	tm.tm_hour, tm.tm_min,
	"-"
	);
	}
	else
	{
	snprintf(size, sizeof(size), "%jd",
	(uintmax_t)buf.st_size);

	snprintf(tmp, BUF_SIZE, ENTRY,
	dent->d_name, "", dent->d_name, "",
	tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
	tm.tm_hour, tm.tm_min,
	size
	);
	}

	ret = write(outfd, tmp, strlen(tmp));

	if (-1 == ret)
	{
	break;
	}

	total += ret;
	}

	closedir(dir);

	errout_with_hdr:

	memset(&info, 0, sizeof(info));
	uname(&info);

	snprintf(tmp, BUF_SIZE, FOOTER,
	info.sysname,
	info.release,
	info.version,
	info.machine,
	BOARD_NAME);

	ret = write(outfd, tmp, strlen(tmp));

	if (-1 != ret)
	{
	total += ret;
	}

	ret = total;

	errout:

	free(tmp);
	return ret;
	}