229 lines
6.5 KiB
C
229 lines
6.5 KiB
C
/* $NetBSD: dir-index-bozo.c,v 1.25.8.3 2021/03/27 13:38:51 martin 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) 1997-2020 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 <fcntl.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 <unistd.h>
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#include <assert.h>
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#include "bozohttpd.h"
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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 *dirpath, 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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DIR *dp;
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char buf[MAXPATHLEN];
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char *file = NULL, *printname = NULL, *p;
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int k, j, fd;
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ssize_t rlen;
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if (!isindex || !httpd->dir_indexing)
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return 0;
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if (strlen(dirpath) <= strlen(httpd->index_html))
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dirpath = ".";
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else {
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file = bozostrdup(httpd, request, dirpath);
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file[strlen(file) - strlen(httpd->index_html)] = '\0';
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dirpath = file;
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}
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debug((httpd, DEBUG_FAT, "bozo_dir_index: dirpath '%s'", dirpath));
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if (stat(dirpath, &sb) < 0 ||
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(dp = opendir(dirpath)) == NULL) {
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if (errno == EPERM)
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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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bozo_http_error(httpd, 404, request, "no file");
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else
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bozo_http_error(httpd, 500, request, "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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#ifndef NO_USER_SUPPORT
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if (request->hr_user) {
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bozoasprintf(httpd, &printname, "~%s/%s",
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request->hr_user, request->hr_file);
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} else
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printname = bozostrdup(httpd, request, request->hr_file);
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#else
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printname = bozostrdup(httpd, request, request->hr_file);
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#endif /* !NO_USER_SUPPORT */
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if ((p = strstr(printname, httpd->index_html)) != NULL) {
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if (strcmp(printname, httpd->index_html) == 0)
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strcpy(printname, "/"); /* is ``slashdir'' */
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else
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*p = '\0'; /* strip unwanted ``index_html'' */
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}
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if ((p = bozo_escape_html(httpd, printname)) != NULL) {
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free(printname);
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printname = p;
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}
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bozo_printf(httpd,
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"<!DOCTYPE html>\r\n"
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"<html><head><meta charset=\"utf-8\"/>\r\n"
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"<style type=\"text/css\">\r\n"
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"table {\r\n"
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"\tborder-top: 1px solid black;\r\n"
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"\tborder-bottom: 1px solid black;\r\n"
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"}\r\n"
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"th { background: aquamarine; }\r\n"
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"tr:nth-child(even) { background: lavender; }\r\n"
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"</style>\r\n");
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bozo_printf(httpd, "<title>Index of %s</title></head>\r\n",
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printname);
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bozo_printf(httpd, "<body><h1>Index of %s</h1>\r\n",
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printname);
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bozo_printf(httpd,
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"<table cols=3>\r\n<thead>\r\n"
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"<tr><th>Name<th>Last modified<th align=right>Size\r\n"
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"<tbody>\r\n");
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for (j = k = scandir(dirpath, &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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char *urlname, *htmlname;
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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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if (bozo_check_special_files(request, name, false))
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continue;
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snprintf(buf, sizeof buf, "%s/%s", dirpath, name);
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if (stat(buf, &sb))
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nostat = 1;
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urlname = bozo_escape_rfc3986(httpd, name, 0);
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htmlname = bozo_escape_html(httpd, name);
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if (htmlname == NULL)
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htmlname = name;
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bozo_printf(httpd, "<tr><td>");
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if (strcmp(name, "..") == 0) {
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bozo_printf(httpd, "<a href=\"../\">");
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bozo_printf(httpd, "Parent Directory");
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} else if (!nostat && S_ISDIR(sb.st_mode)) {
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bozo_printf(httpd, "<a href=\"%s/\">", urlname);
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bozo_printf(httpd, "%s/", htmlname);
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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\">", urlname);
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bozo_printf(httpd, "%s", htmlname);
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} else {
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bozo_printf(httpd, "<a href=\"%s\">", urlname);
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bozo_printf(httpd, "%s", htmlname);
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}
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if (htmlname != name)
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free(htmlname);
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bozo_printf(httpd, "</a>");
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if (nostat)
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bozo_printf(httpd, "<td>?<td>?\r\n");
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else {
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unsigned long long len;
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strftime(buf, sizeof buf, "%d-%b-%Y %R", gmtime(&sb.st_mtime));
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bozo_printf(httpd, "<td>%s", buf);
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len = ((unsigned long long)sb.st_size + 1023) / 1024;
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bozo_printf(httpd, "<td align=right>%llukB", len);
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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, "</table>\r\n");
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if (httpd->dir_readme != NULL) {
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if (httpd->dir_readme[0] == '/')
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snprintf(buf, sizeof buf, "%s", httpd->dir_readme);
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else
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snprintf(buf, sizeof buf, "%s/%s", dirpath, httpd->dir_readme);
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fd = open(buf, O_RDONLY);
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if (fd != -1) {
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bozo_flush(httpd, stdout);
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do {
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rlen = read(fd, buf, sizeof buf);
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if (rlen <= 0)
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break;
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bozo_write(httpd, STDOUT_FILENO, buf, rlen);
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} while (1);
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close(fd);
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}
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}
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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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free(file);
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free(printname);
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return 1;
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}
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#endif /* NO_DIRINDEX_SUPPORT */
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