Home | History | Annotate | Line # | Download | only in httpd
dir-index-bozo.c revision 1.3 
      1 /*	$NetBSD: dir-index-bozo.c,v 1.3 2007/10/18 18:53:59 ad Exp $	*/
      2 
      3 /*	$eterna: dir-index-bozo.c,v 1.7 2006/05/17 08:18:44 mrg Exp $	*/
      4 
      5 /*
      6  * Copyright (c) 1997-2006 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  * 3. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     26  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     27  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     28  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     29  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  *
     33  */
     34 
     35 /* this code implements directory index generation for bozohttpd */
     36 
     37 #ifndef NO_DIRINDEX_SUPPORT
     38 
     39 #include <sys/param.h>
     40 
     41 #include <dirent.h>
     42 #include <errno.h>
     43 #include <string.h>
     44 #include <time.h>
     45 #include <assert.h>
     46 
     47 #include "bozohttpd.h"
     48 
     49 	int	Xflag;		/* do directory indexing */
     50 	int	Hflag;		/* hide .* */
     51 
     52 static void
     53 directory_hr(void)
     54 {
     55 
     56 	bozoprintf("<hr noshade align=\"left\" width=\"80%%\">\r\n\r\n");
     57 }
     58 
     59 /*
     60  * output a directory index.  return 1 if it actually did something..
     61  */
     62 int
     63 directory_index(http_req *request, const char *dirname, int isindex)
     64 {
     65 	struct stat sb;
     66 	struct dirent *de;
     67 	struct tm *tm;
     68 	DIR *dp;
     69 	char buf[MAXPATHLEN];
     70 	char spacebuf[48];
     71 	int l, i;
     72 
     73 	dp = NULL;	/* XXX */
     74 
     75 	if (!isindex || !Xflag)
     76 		return 0;
     77 
     78 	if (strlen(dirname) <= strlen(index_html))
     79 		dirname = ".";
     80 	else {
     81 		char *file = bozostrdup(dirname);
     82 
     83 		file[strlen(file) - strlen(index_html)] = '\0';
     84 		dirname = file;
     85 	}
     86 	debug((DEBUG_FAT, "directory_index: dirname ``%s''", dirname));
     87 	if (stat(dirname, &sb) < 0 ||
     88 	    (dp = opendir(dirname)) == NULL) {
     89 		if (errno == EPERM)
     90 			http_error(403, request,
     91 			    "no permission to open directory");
     92 		else if (errno == ENOENT)
     93 			http_error(404, request, "no file");
     94 		else
     95 			http_error(500, request, "open directory");
     96 		/* NOTREACHED */
     97 	}
     98 
     99 	bozoprintf("%s 200 OK\r\n", request->hr_proto);
    100 
    101 	if (request->hr_proto != http_09) {
    102 		print_header(request, NULL, "text/html", "");
    103 		bozoprintf("\r\n");
    104 	}
    105 	bozoflush(stdout);
    106 
    107 	if (request->hr_method == HTTP_HEAD) {
    108 		closedir(dp);
    109 		return 1;
    110 	}
    111 
    112 	bozoprintf("<html><head><title>Index of %s</title></head>\r\n",
    113 	    request->hr_url);
    114 	bozoprintf("<body><h1>Index of %s</h1>\r\n", request->hr_url);
    115 	bozoprintf("<pre>\r\n");
    116 #define NAMELEN 40
    117 #define LMODLEN 19
    118 	bozoprintf("Name                                     "
    119 	    "Last modified          "
    120 	    "Size\n");
    121 	bozoprintf("</pre>");
    122 	directory_hr();
    123 	bozoprintf("<pre>");
    124 
    125 	while ((de = readdir(dp)) != NULL) {
    126 		int nostat = 0;
    127 		char *name = de->d_name;
    128 
    129 		if (strcmp(name, ".") == 0 ||
    130 		    (strcmp(name, "..") != 0 && Hflag && name[0] == '.'))
    131 			continue;
    132 
    133 		snprintf(buf, sizeof buf, "%s/%s", dirname, name);
    134 		if (stat(buf, &sb))
    135 			nostat = 1;
    136 
    137 		l = 0;
    138 
    139 		if (strcmp(name, "..") == 0) {
    140 			bozoprintf("<a href=\"../\">");
    141 			l += bozoprintf("Parent Directory");
    142 		} else if (S_ISDIR(sb.st_mode)) {
    143 			bozoprintf("<a href=\"%s/\">", name);
    144 			l += bozoprintf("%s/", name);
    145 		} else {
    146 			bozoprintf("<a href=\"%s\">", name);
    147 			l += bozoprintf("%s", name);
    148 		}
    149 		bozoprintf("</a>");
    150 
    151 		/* NAMELEN spaces */
    152 		assert(sizeof(spacebuf) > NAMELEN);
    153 		i = (l < NAMELEN) ? (NAMELEN - l) : 0;
    154 		i++;
    155 		memset(spacebuf, ' ', i);
    156 		spacebuf[i] = '\0';
    157 		bozoprintf(spacebuf);
    158 		l += i;
    159 
    160 		if (nostat)
    161 			bozoprintf("?                         ?");
    162 		else {
    163 			tm = gmtime(&sb.st_mtime);
    164 			strftime(buf, sizeof buf, "%d-%b-%Y %R", tm);
    165 			l += bozoprintf("%s", buf);
    166 
    167 			/* LMODLEN spaces */
    168 			assert(sizeof(spacebuf) > LMODLEN);
    169 			i = (l < (LMODLEN+NAMELEN+1)) ? ((LMODLEN+NAMELEN+1) - l) : 0;
    170 			i++;
    171 			memset(spacebuf, ' ', i);
    172 			spacebuf[i] = '\0';
    173 			bozoprintf(spacebuf);
    174 
    175 			bozoprintf("%7ukB",
    176 			    ((unsigned int)(sb.st_size >> 10)));
    177 		}
    178 		bozoprintf("\r\n");
    179 	}
    180 
    181 	closedir(dp);
    182 	bozoprintf("</pre>");
    183 	directory_hr();
    184 	bozoprintf("</body></html>\r\n");
    185 	bozoflush(stdout);
    186 
    187 	return 1;
    188 }
    189 #endif /* NO_DIRINDEX_SUPPORT */
    190