207 lines
5.5 KiB
C
207 lines
5.5 KiB
C
/* $NetBSD: dir-index-bozo.c,v 1.13 2011/11/18 09:51:31 mrg Exp $ */
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/* $eterna: dir-index-bozo.c,v 1.20 2011/11/18 09:21:15 mrg Exp $ */
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/*
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* Copyright (c) 1997-2011 Matthew R. Green
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer and
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* dedication in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/* this code implements directory index generation for bozohttpd */
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#ifndef NO_DIRINDEX_SUPPORT
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#include <sys/param.h>
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#include <dirent.h>
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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#include <time.h>
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#include <assert.h>
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#include "bozohttpd.h"
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static void
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directory_hr(bozohttpd_t *httpd)
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{
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bozo_printf(httpd,
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"<hr noshade align=\"left\" width=\"80%%\">\r\n\r\n");
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}
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/*
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* output a directory index. return 1 if it actually did something..
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*/
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int
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bozo_dir_index(bozo_httpreq_t *request, const char *dirname, int isindex)
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{
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bozohttpd_t *httpd = request->hr_httpd;
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struct stat sb;
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struct dirent **de, **deo;
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struct tm *tm;
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DIR *dp;
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char buf[MAXPATHLEN];
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char spacebuf[48];
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char *file = NULL;
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int l, k, j, i;
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if (!isindex || !httpd->dir_indexing)
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return 0;
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if (strlen(dirname) <= strlen(httpd->index_html))
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dirname = ".";
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else {
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file = bozostrdup(httpd, dirname);
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file[strlen(file) - strlen(httpd->index_html)] = '\0';
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dirname = file;
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}
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debug((httpd, DEBUG_FAT, "bozo_dir_index: dirname ``%s''", dirname));
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if (stat(dirname, &sb) < 0 ||
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(dp = opendir(dirname)) == NULL) {
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if (errno == EPERM)
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(void)bozo_http_error(httpd, 403, request,
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"no permission to open directory");
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else if (errno == ENOENT)
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(void)bozo_http_error(httpd, 404, request, "no file");
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else
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(void)bozo_http_error(httpd, 500, request,
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"open directory");
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goto done;
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/* NOTREACHED */
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}
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bozo_printf(httpd, "%s 200 OK\r\n", request->hr_proto);
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if (request->hr_proto != httpd->consts.http_09) {
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bozo_print_header(request, NULL, "text/html", "");
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bozo_printf(httpd, "\r\n");
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}
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bozo_flush(httpd, stdout);
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if (request->hr_method == HTTP_HEAD) {
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closedir(dp);
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goto done;
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}
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bozo_printf(httpd,
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"<html><head><title>Index of %s</title></head>\r\n",
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request->hr_file);
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bozo_printf(httpd, "<body><h1>Index of %s</h1>\r\n",
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request->hr_file);
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bozo_printf(httpd, "<pre>\r\n");
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#define NAMELEN 40
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#define LMODLEN 19
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bozo_printf(httpd, "Name "
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"Last modified "
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"Size\n");
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bozo_printf(httpd, "</pre>");
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directory_hr(httpd);
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bozo_printf(httpd, "<pre>");
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for (j = k = scandir(dirname, &de, NULL, alphasort), deo = de;
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j--; de++) {
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int nostat = 0;
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char *name = (*de)->d_name;
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if (strcmp(name, ".") == 0 ||
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(strcmp(name, "..") != 0 &&
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httpd->hide_dots && name[0] == '.'))
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continue;
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snprintf(buf, sizeof buf, "%s/%s", dirname, name);
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if (stat(buf, &sb))
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nostat = 1;
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l = 0;
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if (strcmp(name, "..") == 0) {
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bozo_printf(httpd, "<a href=\"../\">");
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l += bozo_printf(httpd, "Parent Directory");
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} else if (S_ISDIR(sb.st_mode)) {
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bozo_printf(httpd, "<a href=\"%s/\">", name);
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l += bozo_printf(httpd, "%s/", name);
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} else if (strchr(name, ':') != NULL) {
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/* RFC 3986 4.2 */
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bozo_printf(httpd, "<a href=\"./%s\">", name);
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l += bozo_printf(httpd, "%s", name);
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} else {
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bozo_printf(httpd, "<a href=\"%s\">", name);
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l += bozo_printf(httpd, "%s", name);
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}
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bozo_printf(httpd, "</a>");
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/* NAMELEN spaces */
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/*LINTED*/
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assert(/*CONSTCOND*/sizeof(spacebuf) > NAMELEN);
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i = (l < NAMELEN) ? (NAMELEN - l) : 0;
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i++;
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memset(spacebuf, ' ', (size_t)i);
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spacebuf[i] = '\0';
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bozo_printf(httpd, spacebuf);
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l += i;
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if (nostat)
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bozo_printf(httpd, "? ?");
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else {
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tm = gmtime(&sb.st_mtime);
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strftime(buf, sizeof buf, "%d-%b-%Y %R", tm);
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l += bozo_printf(httpd, "%s", buf);
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/* LMODLEN spaces */
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/*LINTED*/
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assert(/*CONSTCOND*/sizeof(spacebuf) > LMODLEN);
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i = (l < (LMODLEN+NAMELEN+1)) ?
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((LMODLEN+NAMELEN+1) - l) : 0;
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i++;
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memset(spacebuf, ' ', (size_t)i);
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spacebuf[i] = '\0';
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bozo_printf(httpd, spacebuf);
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bozo_printf(httpd, "%7ukB",
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((unsigned)((unsigned)(sb.st_size) >> 10)));
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}
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bozo_printf(httpd, "\r\n");
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}
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closedir(dp);
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while (k--)
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free(deo[k]);
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free(deo);
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bozo_printf(httpd, "</pre>");
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directory_hr(httpd);
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bozo_printf(httpd, "</body></html>\r\n\r\n");
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bozo_flush(httpd, stdout);
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done:
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if (file)
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free(file);
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return 1;
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}
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#endif /* NO_DIRINDEX_SUPPORT */
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