dir-index-bozo.c revision 1.28
1 /* $NetBSD: dir-index-bozo.c,v 1.28 2018/11/22 08:54:08 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) 1997-2018 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 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 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, *printname = 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, request, 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 bozo_http_error(httpd, 403, request, 88 "no permission to open directory"); 89 else if (errno == ENOENT) 90 bozo_http_error(httpd, 404, request, "no file"); 91 else 92 bozo_http_error(httpd, 500, request, "open directory"); 93 goto done; 94 /* NOTREACHED */ 95 } 96 97 bozo_printf(httpd, "%s 200 OK\r\n", request->hr_proto); 98 99 if (request->hr_proto != httpd->consts.http_09) { 100 bozo_print_header(request, NULL, "text/html", ""); 101 bozo_printf(httpd, "\r\n"); 102 } 103 bozo_flush(httpd, stdout); 104 105 if (request->hr_method == HTTP_HEAD) { 106 closedir(dp); 107 goto done; 108 } 109 110 #ifndef NO_USER_SUPPORT 111 if (request->hr_user) { 112 bozoasprintf(httpd, &printname, "~%s/%s", 113 request->hr_user, request->hr_file); 114 } else 115 printname = bozostrdup(httpd, request, request->hr_file); 116 #else 117 printname = bozostrdup(httpd, request, request->hr_file); 118 #endif /* !NO_USER_SUPPORT */ 119 120 bozo_printf(httpd, 121 "<html><head><title>Index of %s</title></head>\r\n", 122 printname); 123 bozo_printf(httpd, "<body><h1>Index of %s</h1>\r\n", 124 printname); 125 bozo_printf(httpd, "<pre>\r\n"); 126 #define NAMELEN 40 127 #define LMODLEN 19 128 bozo_printf(httpd, "Name " 129 "Last modified " 130 "Size\n"); 131 bozo_printf(httpd, "</pre>"); 132 directory_hr(httpd); 133 bozo_printf(httpd, "<pre>"); 134 135 for (j = k = scandir(dirpath, &de, NULL, alphasort), deo = de; 136 j--; de++) { 137 int nostat = 0; 138 char *name = (*de)->d_name; 139 char *urlname, *htmlname; 140 141 if (strcmp(name, ".") == 0 || 142 (strcmp(name, "..") != 0 && 143 httpd->hide_dots && name[0] == '.')) 144 continue; 145 146 snprintf(buf, sizeof buf, "%s/%s", dirpath, name); 147 if (stat(buf, &sb)) 148 nostat = 1; 149 150 l = 0; 151 152 urlname = bozo_escape_rfc3986(httpd, name, 0); 153 htmlname = bozo_escape_html(httpd, name); 154 if (htmlname == NULL) 155 htmlname = name; 156 if (strcmp(name, "..") == 0) { 157 bozo_printf(httpd, "<a href=\"../\">"); 158 l += bozo_printf(httpd, "Parent Directory"); 159 } else if (!nostat && S_ISDIR(sb.st_mode)) { 160 bozo_printf(httpd, "<a href=\"%s/\">", urlname); 161 l += bozo_printf(httpd, "%s/", htmlname); 162 } else if (strchr(name, ':') != NULL) { 163 /* RFC 3986 4.2 */ 164 bozo_printf(httpd, "<a href=\"./%s\">", urlname); 165 l += bozo_printf(httpd, "%s", htmlname); 166 } else { 167 bozo_printf(httpd, "<a href=\"%s\">", urlname); 168 l += bozo_printf(httpd, "%s", htmlname); 169 } 170 if (htmlname != name) 171 free(htmlname); 172 bozo_printf(httpd, "</a>"); 173 174 /* NAMELEN spaces */ 175 /*LINTED*/ 176 assert(/*CONSTCOND*/sizeof(spacebuf) > NAMELEN); 177 i = (l < NAMELEN) ? (NAMELEN - l) : 0; 178 i++; 179 memset(spacebuf, ' ', (size_t)i); 180 spacebuf[i] = '\0'; 181 bozo_printf(httpd, "%s", spacebuf); 182 l += i; 183 184 if (nostat) 185 bozo_printf(httpd, "? ?"); 186 else { 187 unsigned long long len; 188 189 len = ((unsigned long long)sb.st_size + 1023) / 1024; 190 191 tm = gmtime(&sb.st_mtime); 192 strftime(buf, sizeof buf, "%d-%b-%Y %R", tm); 193 l += bozo_printf(httpd, "%s", buf); 194 195 /* LMODLEN spaces */ 196 /*LINTED*/ 197 assert(/*CONSTCOND*/sizeof(spacebuf) > LMODLEN); 198 i = (l < (LMODLEN+NAMELEN+1)) ? 199 ((LMODLEN+NAMELEN+1) - l) : 0; 200 i++; 201 memset(spacebuf, ' ', (size_t)i); 202 spacebuf[i] = '\0'; 203 bozo_printf(httpd, "%s", spacebuf); 204 205 bozo_printf(httpd, "%12llukB", len); 206 } 207 bozo_printf(httpd, "\r\n"); 208 } 209 210 closedir(dp); 211 while (k--) 212 free(deo[k]); 213 free(deo); 214 bozo_printf(httpd, "</pre>"); 215 directory_hr(httpd); 216 bozo_printf(httpd, "</body></html>\r\n\r\n"); 217 bozo_flush(httpd, stdout); 218 219 done: 220 free(file); 221 free(printname); 222 return 1; 223 } 224 #endif /* NO_DIRINDEX_SUPPORT */ 225 226
Indexes created Fri Sep 26 08:10:20 GMT 2025