1 /* $NetBSD: dir-index-bozo.c,v 1.21 2015/08/27 17:12:18 mrg Exp $ */
2
3 /* $eterna: dir-index-bozo.c,v 1.20 2011/11/18 09:21:15 mrg Exp $ */
4
5 /*
6 * Copyright (c) 1997-2014 Matthew R. Green
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer and
16 * dedication in the documentation and/or other materials provided
17 * with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
26 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 */
32
33 /* this code implements directory index generation for bozohttpd */
34
35 #ifndef NO_DIRINDEX_SUPPORT
36
37 #include <sys/param.h>
38
39 #include <dirent.h>
40 #include <errno.h>
41 #include <string.h>
42 #include <stdlib.h>
43 #include <time.h>
44 #include <assert.h>
45
46 #include "bozohttpd.h"
47
48 static void
directory_hr(bozohttpd_t * httpd)49 directory_hr(bozohttpd_t *httpd)
50 {
51
52 bozo_printf(httpd,
53 "<hr noshade align=\"left\" width=\"80%%\">\r\n\r\n");
54 }
55
56 /*
57 * output a directory index. return 1 if it actually did something..
58 */
59 int
bozo_dir_index(bozo_httpreq_t * request,const char * dirpath,int isindex)60 bozo_dir_index(bozo_httpreq_t *request, const char *dirpath, int isindex)
61 {
62 bozohttpd_t *httpd = request->hr_httpd;
63 struct stat sb;
64 struct dirent **de, **deo;
65 struct tm *tm;
66 DIR *dp;
67 char buf[MAXPATHLEN];
68 char spacebuf[48];
69 char *file = NULL;
70 int l, k, j, i;
71
72 if (!isindex || !httpd->dir_indexing)
73 return 0;
74
75 if (strlen(dirpath) <= strlen(httpd->index_html))
76 dirpath = ".";
77 else {
78 file = bozostrdup(httpd, dirpath);
79
80 file[strlen(file) - strlen(httpd->index_html)] = '\0';
81 dirpath = file;
82 }
83 debug((httpd, DEBUG_FAT, "bozo_dir_index: dirpath ``%s''", dirpath));
84 if (stat(dirpath, &sb) < 0 ||
85 (dp = opendir(dirpath)) == NULL) {
86 if (errno == EPERM)
87 (void)bozo_http_error(httpd, 403, request,
88 "no permission to open directory");
89 else if (errno == ENOENT)
90 (void)bozo_http_error(httpd, 404, request, "no file");
91 else
92 (void)bozo_http_error(httpd, 500, request,
93 "open directory");
94 goto done;
95 /* NOTREACHED */
96 }
97
98 bozo_printf(httpd, "%s 200 OK\r\n", request->hr_proto);
99
100 if (request->hr_proto != httpd->consts.http_09) {
101 bozo_print_header(request, NULL, "text/html", "");
102 bozo_printf(httpd, "\r\n");
103 }
104 bozo_flush(httpd, stdout);
105
106 if (request->hr_method == HTTP_HEAD) {
107 closedir(dp);
108 goto done;
109 }
110
111 bozo_printf(httpd,
112 "<html><head><title>Index of %s</title></head>\r\n",
113 request->hr_file);
114 bozo_printf(httpd, "<body><h1>Index of %s</h1>\r\n",
115 request->hr_file);
116 bozo_printf(httpd, "<pre>\r\n");
117 #define NAMELEN 40
118 #define LMODLEN 19
119 bozo_printf(httpd, "Name "
120 "Last modified "
121 "Size\n");
122 bozo_printf(httpd, "</pre>");
123 directory_hr(httpd);
124 bozo_printf(httpd, "<pre>");
125
126 for (j = k = scandir(dirpath, &de, NULL, alphasort), deo = de;
127 j--; de++) {
128 int nostat = 0;
129 char *name = (*de)->d_name;
130 char *urlname, *htmlname;
131
132 if (strcmp(name, ".") == 0 ||
133 (strcmp(name, "..") != 0 &&
134 httpd->hide_dots && name[0] == '.'))
135 continue;
136
137 snprintf(buf, sizeof buf, "%s/%s", dirpath, name);
138 if (stat(buf, &sb))
139 nostat = 1;
140
141 l = 0;
142
143 urlname = bozo_escape_rfc3986(httpd, name);
144 htmlname = bozo_escape_html(httpd, name);
145 if (htmlname == NULL)
146 htmlname = name;
147 if (strcmp(name, "..") == 0) {
148 bozo_printf(httpd, "<a href=\"../\">");
149 l += bozo_printf(httpd, "Parent Directory");
150 } else if (S_ISDIR(sb.st_mode)) {
151 bozo_printf(httpd, "<a href=\"%s/\">", urlname);
152 l += bozo_printf(httpd, "%s/", htmlname);
153 } else if (strchr(name, ':') != NULL) {
154 /* RFC 3986 4.2 */
155 bozo_printf(httpd, "<a href=\"./%s\">", urlname);
156 l += bozo_printf(httpd, "%s", htmlname);
157 } else {
158 bozo_printf(httpd, "<a href=\"%s\">", urlname);
159 l += bozo_printf(httpd, "%s", htmlname);
160 }
161 if (htmlname != name)
162 free(htmlname);
163 bozo_printf(httpd, "</a>");
164
165 /* NAMELEN spaces */
166 /*LINTED*/
167 assert(/*CONSTCOND*/sizeof(spacebuf) > NAMELEN);
168 i = (l < NAMELEN) ? (NAMELEN - l) : 0;
169 i++;
170 memset(spacebuf, ' ', (size_t)i);
171 spacebuf[i] = '\0';
172 bozo_printf(httpd, "%s", spacebuf);
173 l += i;
174
175 if (nostat)
176 bozo_printf(httpd, "? ?");
177 else {
178 tm = gmtime(&sb.st_mtime);
179 strftime(buf, sizeof buf, "%d-%b-%Y %R", tm);
180 l += bozo_printf(httpd, "%s", buf);
181
182 /* LMODLEN spaces */
183 /*LINTED*/
184 assert(/*CONSTCOND*/sizeof(spacebuf) > LMODLEN);
185 i = (l < (LMODLEN+NAMELEN+1)) ?
186 ((LMODLEN+NAMELEN+1) - l) : 0;
187 i++;
188 memset(spacebuf, ' ', (size_t)i);
189 spacebuf[i] = '\0';
190 bozo_printf(httpd, "%s", spacebuf);
191
192 bozo_printf(httpd, "%12llukB",
193 (unsigned long long)sb.st_size >> 10);
194 }
195 bozo_printf(httpd, "\r\n");
196 }
197
198 closedir(dp);
199 while (k--)
200 free(deo[k]);
201 free(deo);
202 bozo_printf(httpd, "</pre>");
203 directory_hr(httpd);
204 bozo_printf(httpd, "</body></html>\r\n\r\n");
205 bozo_flush(httpd, stdout);
206
207 done:
208 free(file);
209 return 1;
210 }
211 #endif /* NO_DIRINDEX_SUPPORT */
212
213