1 /* $NetBSD: dir-index-bozo.c,v 1.25 2015/12/29 04:21:46 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 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 (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 #ifndef NO_USER_SUPPORT 112 if (request->hr_user) { 113 bozoasprintf(httpd, &printname, "~%s/%s", 114 request->hr_user, request->hr_file); 115 } else 116 printname = bozostrdup(httpd, request, request->hr_file); 117 #else 118 printname = bozostrdup(httpd, request, request->hr_file); 119 #endif /* !NO_USER_SUPPORT */ 120 121 bozo_printf(httpd, 122 "<html><head><title>Index of %s</title></head>\r\n", 123 printname); 124 bozo_printf(httpd, "<body><h1>Index of %s</h1>\r\n", 125 printname); 126 bozo_printf(httpd, "<pre>\r\n"); 127 #define NAMELEN 40 128 #define LMODLEN 19 129 bozo_printf(httpd, "Name " 130 "Last modified " 131 "Size\n"); 132 bozo_printf(httpd, "</pre>"); 133 directory_hr(httpd); 134 bozo_printf(httpd, "<pre>"); 135 136 for (j = k = scandir(dirpath, &de, NULL, alphasort), deo = de; 137 j--; de++) { 138 int nostat = 0; 139 char *name = (*de)->d_name; 140 char *urlname, *htmlname; 141 142 if (strcmp(name, ".") == 0 || 143 (strcmp(name, "..") != 0 && 144 httpd->hide_dots && name[0] == '.')) 145 continue; 146 147 snprintf(buf, sizeof buf, "%s/%s", dirpath, name); 148 if (stat(buf, &sb)) 149 nostat = 1; 150 151 l = 0; 152 153 urlname = bozo_escape_rfc3986(httpd, name, 0); 154 htmlname = bozo_escape_html(httpd, name); 155 if (htmlname == NULL) 156 htmlname = name; 157 if (strcmp(name, "..") == 0) { 158 bozo_printf(httpd, "<a href=\"../\">"); 159 l += bozo_printf(httpd, "Parent Directory"); 160 } else if (S_ISDIR(sb.st_mode)) { 161 bozo_printf(httpd, "<a href=\"%s/\">", urlname); 162 l += bozo_printf(httpd, "%s/", htmlname); 163 } else if (strchr(name, ':') != NULL) { 164 /* RFC 3986 4.2 */ 165 bozo_printf(httpd, "<a href=\"./%s\">", urlname); 166 l += bozo_printf(httpd, "%s", htmlname); 167 } else { 168 bozo_printf(httpd, "<a href=\"%s\">", urlname); 169 l += bozo_printf(httpd, "%s", htmlname); 170 } 171 if (htmlname != name) 172 free(htmlname); 173 bozo_printf(httpd, "</a>"); 174 175 /* NAMELEN spaces */ 176 /*LINTED*/ 177 assert(/*CONSTCOND*/sizeof(spacebuf) > NAMELEN); 178 i = (l < NAMELEN) ? (NAMELEN - l) : 0; 179 i++; 180 memset(spacebuf, ' ', (size_t)i); 181 spacebuf[i] = '\0'; 182 bozo_printf(httpd, "%s", spacebuf); 183 l += i; 184 185 if (nostat) 186 bozo_printf(httpd, "? ?"); 187 else { 188 tm = gmtime(&sb.st_mtime); 189 strftime(buf, sizeof buf, "%d-%b-%Y %R", tm); 190 l += bozo_printf(httpd, "%s", buf); 191 192 /* LMODLEN spaces */ 193 /*LINTED*/ 194 assert(/*CONSTCOND*/sizeof(spacebuf) > LMODLEN); 195 i = (l < (LMODLEN+NAMELEN+1)) ? 196 ((LMODLEN+NAMELEN+1) - l) : 0; 197 i++; 198 memset(spacebuf, ' ', (size_t)i); 199 spacebuf[i] = '\0'; 200 bozo_printf(httpd, "%s", spacebuf); 201 202 bozo_printf(httpd, "%12llukB", 203 (unsigned long long)sb.st_size >> 10); 204 } 205 bozo_printf(httpd, "\r\n"); 206 } 207 208 closedir(dp); 209 while (k--) 210 free(deo[k]); 211 free(deo); 212 bozo_printf(httpd, "</pre>"); 213 directory_hr(httpd); 214 bozo_printf(httpd, "</body></html>\r\n\r\n"); 215 bozo_flush(httpd, stdout); 216 217 done: 218 free(file); 219 free(printname); 220 return 1; 221 } 222 #endif /* NO_DIRINDEX_SUPPORT */ 223 224