nuttx-apps/netutils/webserver/httpd_dirlist.c
Masayuki Ishikawa 6fb173e3d5 netutils: webserver: Fix directory handling
Summary:
- I noticed that the webserver can not handle a directory.
- This commit fixes this issue.

Impact:
- None

Testing:
- Tested with spresense:wifi_smp

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
2022-10-21 16:29:37 +08:00

267 lines
6.3 KiB
C

/****************************************************************************
* 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 = true;
path = malloc(CONFIG_NAME_MAX);
ASSERT(path);
snprintf(path, CONFIG_NAME_MAX, "%s/%s",
CONFIG_NETUTILS_HTTPD_PATH, filename);
fd = open(path, O_DIRECTORY);
if (-1 != fd)
{
close(fd);
ret = false;
}
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;
}