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dir-index-bozo.c revision 1.19.4.2.4.1
      1  1.19.4.2.4.1   martin /*	$NetBSD: dir-index-bozo.c,v 1.19.4.2.4.1 2018/11/24 17:23:20 martin Exp $	*/
      2           1.2      tls 
      3          1.13      mrg /*	$eterna: dir-index-bozo.c,v 1.20 2011/11/18 09:21:15 mrg Exp $	*/
      4           1.1      tls 
      5           1.1      tls /*
      6  1.19.4.2.4.1   martin  * Copyright (c) 1997-2018 Matthew R. Green
      7           1.1      tls  * All rights reserved.
      8           1.1      tls  *
      9           1.1      tls  * Redistribution and use in source and binary forms, with or without
     10           1.1      tls  * modification, are permitted provided that the following conditions
     11           1.1      tls  * are met:
     12           1.1      tls  * 1. Redistributions of source code must retain the above copyright
     13           1.1      tls  *    notice, this list of conditions and the following disclaimer.
     14           1.1      tls  * 2. Redistributions in binary form must reproduce the above copyright
     15           1.1      tls  *    notice, this list of conditions and the following disclaimer and
     16           1.1      tls  *    dedication in the documentation and/or other materials provided
     17           1.1      tls  *    with the distribution.
     18           1.1      tls  *
     19           1.1      tls  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     20           1.1      tls  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     21           1.1      tls  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     22           1.1      tls  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     23           1.1      tls  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     24           1.1      tls  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     25           1.1      tls  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     26           1.1      tls  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     27           1.1      tls  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28           1.1      tls  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29           1.1      tls  * SUCH DAMAGE.
     30           1.1      tls  *
     31           1.1      tls  */
     32           1.1      tls 
     33           1.1      tls /* this code implements directory index generation for bozohttpd */
     34           1.1      tls 
     35           1.1      tls #ifndef NO_DIRINDEX_SUPPORT
     36           1.1      tls 
     37           1.1      tls #include <sys/param.h>
     38           1.1      tls 
     39           1.1      tls #include <dirent.h>
     40           1.1      tls #include <errno.h>
     41           1.1      tls #include <string.h>
     42           1.6      mrg #include <stdlib.h>
     43           1.1      tls #include <time.h>
     44           1.1      tls #include <assert.h>
     45           1.1      tls 
     46           1.1      tls #include "bozohttpd.h"
     47           1.1      tls 
     48           1.3       ad static void
     49           1.8      mrg directory_hr(bozohttpd_t *httpd)
     50           1.3       ad {
     51           1.3       ad 
     52           1.8      mrg 	bozo_printf(httpd,
     53           1.8      mrg 		"<hr noshade align=\"left\" width=\"80%%\">\r\n\r\n");
     54           1.3       ad }
     55           1.3       ad 
     56           1.1      tls /*
     57           1.1      tls  * output a directory index.  return 1 if it actually did something..
     58           1.1      tls  */
     59           1.1      tls int
     60      1.19.4.2   martin bozo_dir_index(bozo_httpreq_t *request, const char *dirpath, int isindex)
     61           1.1      tls {
     62           1.8      mrg 	bozohttpd_t *httpd = request->hr_httpd;
     63           1.1      tls 	struct stat sb;
     64          1.10   dogcow 	struct dirent **de, **deo;
     65           1.1      tls 	struct tm *tm;
     66           1.1      tls 	DIR *dp;
     67           1.1      tls 	char buf[MAXPATHLEN];
     68           1.1      tls 	char spacebuf[48];
     69      1.19.4.2   martin 	char *file = NULL, *printname = NULL;
     70          1.10   dogcow 	int l, k, j, i;
     71           1.1      tls 
     72           1.8      mrg 	if (!isindex || !httpd->dir_indexing)
     73           1.1      tls 		return 0;
     74           1.1      tls 
     75      1.19.4.2   martin 	if (strlen(dirpath) <= strlen(httpd->index_html))
     76      1.19.4.2   martin 		dirpath = ".";
     77           1.1      tls 	else {
     78      1.19.4.2   martin 		file = bozostrdup(httpd, request, dirpath);
     79           1.1      tls 
     80           1.8      mrg 		file[strlen(file) - strlen(httpd->index_html)] = '\0';
     81      1.19.4.2   martin 		dirpath = file;
     82           1.1      tls 	}
     83  1.19.4.2.4.1   martin 	debug((httpd, DEBUG_FAT, "bozo_dir_index: dirpath '%s'", dirpath));
     84      1.19.4.2   martin 	if (stat(dirpath, &sb) < 0 ||
     85      1.19.4.2   martin 	    (dp = opendir(dirpath)) == NULL) {
     86           1.1      tls 		if (errno == EPERM)
     87  1.19.4.2.4.1   martin 			bozo_http_error(httpd, 403, request,
     88  1.19.4.2.4.1   martin 					"no permission to open directory");
     89           1.1      tls 		else if (errno == ENOENT)
     90  1.19.4.2.4.1   martin 			bozo_http_error(httpd, 404, request, "no file");
     91           1.1      tls 		else
     92  1.19.4.2.4.1   martin 			bozo_http_error(httpd, 500, request, "open directory");
     93           1.6      mrg 		goto done;
     94           1.1      tls 		/* NOTREACHED */
     95           1.1      tls 	}
     96           1.1      tls 
     97           1.8      mrg 	bozo_printf(httpd, "%s 200 OK\r\n", request->hr_proto);
     98           1.1      tls 
     99           1.8      mrg 	if (request->hr_proto != httpd->consts.http_09) {
    100           1.8      mrg 		bozo_print_header(request, NULL, "text/html", "");
    101           1.8      mrg 		bozo_printf(httpd, "\r\n");
    102           1.1      tls 	}
    103           1.8      mrg 	bozo_flush(httpd, stdout);
    104           1.1      tls 
    105           1.1      tls 	if (request->hr_method == HTTP_HEAD) {
    106           1.1      tls 		closedir(dp);
    107           1.6      mrg 		goto done;
    108           1.1      tls 	}
    109           1.1      tls 
    110      1.19.4.2   martin #ifndef NO_USER_SUPPORT
    111      1.19.4.2   martin 	if (request->hr_user) {
    112      1.19.4.2   martin 		bozoasprintf(httpd, &printname, "~%s/%s",
    113      1.19.4.2   martin 			     request->hr_user, request->hr_file);
    114      1.19.4.2   martin 	} else
    115      1.19.4.2   martin 		printname = bozostrdup(httpd, request, request->hr_file);
    116      1.19.4.2   martin #else
    117      1.19.4.2   martin 	printname = bozostrdup(httpd, request, request->hr_file);
    118      1.19.4.2   martin #endif /* !NO_USER_SUPPORT */
    119      1.19.4.2   martin 
    120           1.8      mrg 	bozo_printf(httpd,
    121           1.8      mrg 		"<html><head><title>Index of %s</title></head>\r\n",
    122      1.19.4.2   martin 		printname);
    123           1.8      mrg 	bozo_printf(httpd, "<body><h1>Index of %s</h1>\r\n",
    124      1.19.4.2   martin 		printname);
    125           1.8      mrg 	bozo_printf(httpd, "<pre>\r\n");
    126           1.1      tls #define NAMELEN 40
    127           1.1      tls #define LMODLEN 19
    128           1.8      mrg 	bozo_printf(httpd, "Name                                     "
    129           1.1      tls 	    "Last modified          "
    130           1.1      tls 	    "Size\n");
    131           1.8      mrg 	bozo_printf(httpd, "</pre>");
    132           1.8      mrg 	directory_hr(httpd);
    133           1.8      mrg 	bozo_printf(httpd, "<pre>");
    134           1.1      tls 
    135      1.19.4.2   martin 	for (j = k = scandir(dirpath, &de, NULL, alphasort), deo = de;
    136          1.10   dogcow 	    j--; de++) {
    137           1.1      tls 		int nostat = 0;
    138           1.9   dogcow 		char *name = (*de)->d_name;
    139          1.16      mrg 		char *urlname, *htmlname;
    140           1.1      tls 
    141           1.9   dogcow 		if (strcmp(name, ".") == 0 ||
    142           1.8      mrg 		    (strcmp(name, "..") != 0 &&
    143           1.8      mrg 		     httpd->hide_dots && name[0] == '.'))
    144           1.1      tls 			continue;
    145           1.1      tls 
    146      1.19.4.2   martin 		snprintf(buf, sizeof buf, "%s/%s", dirpath, name);
    147           1.1      tls 		if (stat(buf, &sb))
    148           1.1      tls 			nostat = 1;
    149           1.1      tls 
    150           1.1      tls 		l = 0;
    151           1.1      tls 
    152      1.19.4.2   martin 		urlname = bozo_escape_rfc3986(httpd, name, 0);
    153          1.16      mrg 		htmlname = bozo_escape_html(httpd, name);
    154          1.16      mrg 		if (htmlname == NULL)
    155          1.16      mrg 			htmlname = name;
    156           1.1      tls 		if (strcmp(name, "..") == 0) {
    157           1.8      mrg 			bozo_printf(httpd, "<a href=\"../\">");
    158           1.8      mrg 			l += bozo_printf(httpd, "Parent Directory");
    159  1.19.4.2.4.1   martin 		} else if (!nostat && S_ISDIR(sb.st_mode)) {
    160          1.15      mrg 			bozo_printf(httpd, "<a href=\"%s/\">", urlname);
    161          1.16      mrg 			l += bozo_printf(httpd, "%s/", htmlname);
    162          1.12     reed 		} else if (strchr(name, ':') != NULL) {
    163          1.12     reed 			/* RFC 3986 4.2 */
    164          1.15      mrg 			bozo_printf(httpd, "<a href=\"./%s\">", urlname);
    165          1.16      mrg 			l += bozo_printf(httpd, "%s", htmlname);
    166           1.1      tls 		} else {
    167          1.15      mrg 			bozo_printf(httpd, "<a href=\"%s\">", urlname);
    168          1.16      mrg 			l += bozo_printf(httpd, "%s", htmlname);
    169           1.1      tls 		}
    170          1.16      mrg 		if (htmlname != name)
    171          1.16      mrg 			free(htmlname);
    172           1.8      mrg 		bozo_printf(httpd, "</a>");
    173           1.1      tls 
    174           1.1      tls 		/* NAMELEN spaces */
    175           1.8      mrg 		/*LINTED*/
    176           1.8      mrg 		assert(/*CONSTCOND*/sizeof(spacebuf) > NAMELEN);
    177           1.1      tls 		i = (l < NAMELEN) ? (NAMELEN - l) : 0;
    178           1.1      tls 		i++;
    179           1.8      mrg 		memset(spacebuf, ' ', (size_t)i);
    180           1.1      tls 		spacebuf[i] = '\0';
    181          1.14    joerg 		bozo_printf(httpd, "%s", spacebuf);
    182           1.1      tls 		l += i;
    183           1.1      tls 
    184           1.1      tls 		if (nostat)
    185           1.8      mrg 			bozo_printf(httpd, "?                         ?");
    186           1.1      tls 		else {
    187  1.19.4.2.4.1   martin 			unsigned long long len;
    188  1.19.4.2.4.1   martin 
    189  1.19.4.2.4.1   martin 			len = ((unsigned long long)sb.st_size + 1023) / 1024;
    190  1.19.4.2.4.1   martin 
    191           1.1      tls 			tm = gmtime(&sb.st_mtime);
    192           1.1      tls 			strftime(buf, sizeof buf, "%d-%b-%Y %R", tm);
    193           1.8      mrg 			l += bozo_printf(httpd, "%s", buf);
    194           1.1      tls 
    195           1.1      tls 			/* LMODLEN spaces */
    196           1.8      mrg 			/*LINTED*/
    197           1.8      mrg 			assert(/*CONSTCOND*/sizeof(spacebuf) > LMODLEN);
    198           1.8      mrg 			i = (l < (LMODLEN+NAMELEN+1)) ?
    199           1.8      mrg 				((LMODLEN+NAMELEN+1) - l) : 0;
    200           1.1      tls 			i++;
    201           1.8      mrg 			memset(spacebuf, ' ', (size_t)i);
    202           1.1      tls 			spacebuf[i] = '\0';
    203          1.14    joerg 			bozo_printf(httpd, "%s", spacebuf);
    204           1.1      tls 
    205  1.19.4.2.4.1   martin 			bozo_printf(httpd, "%12llukB", len);
    206           1.1      tls 		}
    207           1.8      mrg 		bozo_printf(httpd, "\r\n");
    208           1.1      tls 	}
    209           1.1      tls 
    210           1.1      tls 	closedir(dp);
    211          1.10   dogcow 	while (k--)
    212          1.10   dogcow         	free(deo[k]);
    213          1.10   dogcow 	free(deo);
    214           1.8      mrg 	bozo_printf(httpd, "</pre>");
    215           1.8      mrg 	directory_hr(httpd);
    216           1.8      mrg 	bozo_printf(httpd, "</body></html>\r\n\r\n");
    217           1.8      mrg 	bozo_flush(httpd, stdout);
    218           1.9   dogcow 
    219           1.6      mrg done:
    220          1.18  mbalmer 	free(file);
    221      1.19.4.2   martin 	free(printname);
    222           1.1      tls 	return 1;
    223           1.1      tls }
    224           1.1      tls #endif /* NO_DIRINDEX_SUPPORT */
    225           1.9   dogcow 
    226