xref: /netbsd-src/libexec/httpd/content-bozo.c (revision 0df165c04d0a9ca1adde9ed2b890344c937954a6)
1 /*	$NetBSD: content-bozo.c,v 1.2 2007/10/17 18:48:00 tls Exp $	*/
2 
3 /*	$eterna: content-bozo.c,v 1.8 2006/05/17 08:19:10 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 content-type handling for bozohttpd */
36 
37 #include <sys/param.h>
38 
39 #include <string.h>
40 
41 #include "bozohttpd.h"
42 
43 /*
44  * this map and the functions below map between filenames and the
45  * content type and content encoding definitions.  this should become
46  * a configuration file, perhaps like apache's mime.types (but that
47  * has less info per-entry).
48  */
49 
50 static struct content_map content_map[] = {
51 	{ ".html",	"text/html",			"",		"", NULL },
52 	{ ".htm",	"text/html",			"",		"", NULL },
53 	{ ".gif",	"image/gif",			"",		"", NULL },
54 	{ ".jpeg",	"image/jpeg",			"",		"", NULL },
55 	{ ".jpg",	"image/jpeg",			"",		"", NULL },
56 	{ ".jpe",	"image/jpeg",			"",		"", NULL },
57 	{ ".png",	"image/png",			"",		"", NULL },
58 	{ ".mp3",	"audio/mpeg",			"",		"", NULL },
59 	{ ".css",	"text/css",			"",		"", NULL },
60 	{ ".txt",	"text/plain",			"",		"", NULL },
61 	{ ".swf",	"application/x-shockwave-flash","",		"", NULL },
62 	{ ".dcr",	"application/x-director",	"",		"", NULL },
63 	{ ".pac",	"application/x-ns-proxy-autoconfig", "",	"", NULL },
64 	{ ".pa",	"application/x-ns-proxy-autoconfig", "",	"", NULL },
65 	{ ".tar",	"multipart/x-tar",		"",		"", NULL },
66 	{ ".gtar",	"multipart/x-gtar",		"",		"", NULL },
67 	{ ".tar.Z",	"multipart/x-tar",		"x-compress",	"compress", NULL },
68 	{ ".tar.gz",	"multipart/x-tar",		"x-gzip",	"gzip", NULL },
69 	{ ".taz",	"multipart/x-tar",		"x-gzip",	"gzip", NULL },
70 	{ ".tgz",	"multipart/x-tar",		"x-gzip",	"gzip", NULL },
71 	{ ".tar.z",	"multipart/x-tar",		"x-pack",	"x-pack", NULL },
72 	{ ".Z",		"application/x-compress",	"x-compress",	"compress", NULL },
73 	{ ".gz",	"application/x-gzip",		"x-gzip",	"gzip", NULL },
74 	{ ".z",		"unknown",			"x-pack",	"x-pack", NULL },
75 	{ ".bz2",	"application/x-bzip2",		"x-bzip2",	"x-bzip2", NULL },
76 	{ ".ogg",	"application/x-ogg",		"",		"", NULL },
77 	{ ".xbel",	"text/xml",			"",		"", NULL },
78 	{ ".xml",	"text/xml",			"",		"", NULL },
79 	{ ".xsl",	"text/xml",			"",		"", NULL },
80 	{ ".hqx",	"application/mac-binhex40",	"",		"", NULL },
81 	{ ".cpt",	"application/mac-compactpro",	"",		"", NULL },
82 	{ ".doc",	"application/msword",		"",		"", NULL },
83 	{ ".bin",	"application/octet-stream",	"",		"", NULL },
84 	{ ".dms",	"application/octet-stream",	"",		"", NULL },
85 	{ ".lha",	"application/octet-stream",	"",		"", NULL },
86 	{ ".lzh",	"application/octet-stream",	"",		"", NULL },
87 	{ ".exe",	"application/octet-stream",	"",		"", NULL },
88 	{ ".class",	"application/octet-stream",	"",		"", NULL },
89 	{ ".oda",	"application/oda",		"",		"", NULL },
90 	{ ".pdf",	"application/pdf",		"",		"", NULL },
91 	{ ".ai",	"application/postscript",	"",		"", NULL },
92 	{ ".eps",	"application/postscript",	"",		"", NULL },
93 	{ ".ps",	"application/postscript",	"",		"", NULL },
94 	{ ".ppt",	"application/powerpoint",	"",		"", NULL },
95 	{ ".rtf",	"application/rtf",		"",		"", NULL },
96 	{ ".bcpio",	"application/x-bcpio",		"",		"", NULL },
97 	{ ".torrent",	"application/x-bittorrent",	"",		"", NULL },
98 	{ ".vcd",	"application/x-cdlink",		"",		"", NULL },
99 	{ ".cpio",	"application/x-cpio",		"",		"", NULL },
100 	{ ".csh",	"application/x-csh",		"",		"", NULL },
101 	{ ".dir",	"application/x-director",	"",		"", NULL },
102 	{ ".dxr",	"application/x-director",	"",		"", NULL },
103 	{ ".dvi",	"application/x-dvi",		"",		"", NULL },
104 	{ ".hdf",	"application/x-hdf",		"",		"", NULL },
105 	{ ".cgi",	"application/x-httpd-cgi",	"",		"", NULL },
106 	{ ".skp",	"application/x-koan",		"",		"", NULL },
107 	{ ".skd",	"application/x-koan",		"",		"", NULL },
108 	{ ".skt",	"application/x-koan",		"",		"", NULL },
109 	{ ".skm",	"application/x-koan",		"",		"", NULL },
110 	{ ".latex",	"application/x-latex",		"",		"", NULL },
111 	{ ".mif",	"application/x-mif",		"",		"", NULL },
112 	{ ".nc",	"application/x-netcdf",		"",		"", NULL },
113 	{ ".cdf",	"application/x-netcdf",		"",		"", NULL },
114 	{ ".patch",	"application/x-patch",		"",		"", NULL },
115 	{ ".sh",	"application/x-sh",		"",		"", NULL },
116 	{ ".shar",	"application/x-shar",		"",		"", NULL },
117 	{ ".sit",	"application/x-stuffit",	"",		"", NULL },
118 	{ ".sv4cpio",	"application/x-sv4cpio",	"",		"", NULL },
119 	{ ".sv4crc",	"application/x-sv4crc",		"",		"", NULL },
120 	{ ".tar",	"application/x-tar",		"",		"", NULL },
121 	{ ".tcl",	"application/x-tcl",		"",		"", NULL },
122 	{ ".tex",	"application/x-tex",		"",		"", NULL },
123 	{ ".texinfo",	"application/x-texinfo",	"",		"", NULL },
124 	{ ".texi",	"application/x-texinfo",	"",		"", NULL },
125 	{ ".t",		"application/x-troff",		"",		"", NULL },
126 	{ ".tr",	"application/x-troff",		"",		"", NULL },
127 	{ ".roff",	"application/x-troff",		"",		"", NULL },
128 	{ ".man",	"application/x-troff-man",	"",		"", NULL },
129 	{ ".me",	"application/x-troff-me",	"",		"", NULL },
130 	{ ".ms",	"application/x-troff-ms",	"",		"", NULL },
131 	{ ".ustar",	"application/x-ustar",		"",		"", NULL },
132 	{ ".src",	"application/x-wais-source",	"",		"", NULL },
133 	{ ".zip",	"application/zip",		"",		"", NULL },
134 	{ ".au",	"audio/basic",			"",		"", NULL },
135 	{ ".snd",	"audio/basic",			"",		"", NULL },
136 	{ ".mpga",	"audio/mpeg",			"",		"", NULL },
137 	{ ".mp2",	"audio/mpeg",			"",		"", NULL },
138 	{ ".aif",	"audio/x-aiff",			"",		"", NULL },
139 	{ ".aiff",	"audio/x-aiff",			"",		"", NULL },
140 	{ ".aifc",	"audio/x-aiff",			"",		"", NULL },
141 	{ ".ram",	"audio/x-pn-realaudio",		"",		"", NULL },
142 	{ ".rpm",	"audio/x-pn-realaudio-plugin",	"",		"", NULL },
143 	{ ".ra",	"audio/x-realaudio",		"",		"", NULL },
144 	{ ".wav",	"audio/x-wav",			"",		"", NULL },
145 	{ ".pdb",	"chemical/x-pdb",		"",		"", NULL },
146 	{ ".xyz",	"chemical/x-pdb",		"",		"", NULL },
147 	{ ".ief",	"image/ief",			"",		"", NULL },
148 	{ ".tiff",	"image/tiff",			"",		"", NULL },
149 	{ ".tif",	"image/tiff",			"",		"", NULL },
150 	{ ".ras",	"image/x-cmu-raster",		"",		"", NULL },
151 	{ ".pnm",	"image/x-portable-anymap",	"",		"", NULL },
152 	{ ".pbm",	"image/x-portable-bitmap",	"",		"", NULL },
153 	{ ".pgm",	"image/x-portable-graymap",	"",		"", NULL },
154 	{ ".ppm",	"image/x-portable-pixmap",	"",		"", NULL },
155 	{ ".rgb",	"image/x-rgb",			"",		"", NULL },
156 	{ ".xbm",	"image/x-xbitmap",		"",		"", NULL },
157 	{ ".xpm",	"image/x-xpixmap",		"",		"", NULL },
158 	{ ".xwd",	"image/x-xwindowdump",		"",		"", NULL },
159 	{ ".rtx",	"text/richtext",		"",		"", NULL },
160 	{ ".tsv",	"text/tab-separated-values",	"",		"", NULL },
161 	{ ".etx",	"text/x-setext",		"",		"", NULL },
162 	{ ".sgml",	"text/x-sgml",			"",		"", NULL },
163 	{ ".sgm",	"text/x-sgml",			"",		"", NULL },
164 	{ ".mpeg",	"video/mpeg",			"",		"", NULL },
165 	{ ".mpg",	"video/mpeg",			"",		"", NULL },
166 	{ ".mpe",	"video/mpeg",			"",		"", NULL },
167 	{ ".qt",	"video/quicktime",		"",		"", NULL },
168 	{ ".mov",	"video/quicktime",		"",		"", NULL },
169 	{ ".avi",	"video/x-msvideo",		"",		"", NULL },
170 	{ ".movie",	"video/x-sgi-movie",		"",		"", NULL },
171 	{ ".ice",	"x-conference/x-cooltalk",	"",		"", NULL },
172 	{ ".wrl",	"x-world/x-vrml",		"",		"", NULL },
173 	{ ".vrml",	"x-world/x-vrml",		"",		"", NULL },
174 	{ NULL,		NULL,				NULL,		NULL, NULL, },
175 };
176 
177 static struct content_map *dynamic_content_map;
178 
179 /* call with stage == 0 for full search, stage == 1 for dynamic only */
180 struct content_map *
181 match_content_map(const char *name, int stage)
182 {
183 	size_t	len = strlen(name), nlen;
184 	struct	content_map	*map;
185 
186 	for (map = dynamic_content_map; map && map->name; map++) {
187 again:
188 		nlen = strlen(map->name);
189 		if (nlen > len || strcasecmp(map->name, name + (len - nlen)) != 0)
190 			continue;
191 		return (map);
192 	}
193 	if (stage++ == 0) {
194 		map = content_map;
195 		goto again;
196 	}
197 
198 	return (NULL);
199 }
200 
201 /*
202  * given the file name, return a valid Content-Type: value.
203  */
204 /* ARGSUSED */
205 const char *
206 content_type(http_req *request, const char *file)
207 {
208 	struct	content_map	*map;
209 
210 	map = match_content_map(file, 0);
211 	if (map)
212 		return (map->type);
213 	return (text_plain);
214 }
215 
216 /*
217  * given the file name, return a valid Content-Encoding: value.
218  */
219 const char *
220 content_encoding(http_req *request, const char *file)
221 {
222 	struct	content_map	*map;
223 
224 	map = match_content_map(file, 0);
225 	if (map)
226 		return (request->hr_proto == http_11 ?
227 		    map->encoding11 : map->encoding);
228 	return (NULL);
229 }
230 
231 #ifndef NO_DYNAMIC_CONTENT
232 static int dynamic_content_map_size;
233 
234 struct content_map *
235 get_content_map(const char *name)
236 {
237 	struct	content_map	*map;
238 
239 	if ((map = match_content_map(name, 1)))
240 		return (map);
241 
242 	dynamic_content_map_size++;
243 	dynamic_content_map = bozorealloc(dynamic_content_map,
244 	    (dynamic_content_map_size + 1) * sizeof *map);
245 	map = &dynamic_content_map[dynamic_content_map_size];
246 	map->name = map->type = map->encoding = map->encoding11 =
247 	    map->cgihandler = NULL;
248 	map--;
249 
250 	return (map);
251 }
252 
253 /*
254  * mime content maps look like:
255  *	".name type encoding encoding11"
256  * where any of type, encoding or encoding11 a dash "-" means "".
257  * eg the .gtar, .tar.Z from above  could be written like:
258  *	".gtar multipart/x-gtar - -"
259  *	".tar.Z multipart/x-tar x-compress compress"
260  * or
261  *	".gtar multipart/x-gtar"
262  *	".tar.Z multipart/x-tar x-compress compress"
263  * NOTE: we destroy 'arg'
264  */
265 void
266 add_content_map_mime(char *cmap0, char *cmap1, char *cmap2, char *cmap3)
267 {
268 	struct content_map *map;
269 
270 	debug((DEBUG_FAT, "add_content_map: name %s type %s enc %s enc11 %s ",
271 		cmap0, cmap1, cmap2, cmap3));
272 
273 	map = get_content_map(cmap0);
274 #define CHECKMAP(s)	(!s || ((s)[0] == '-' && (s)[1] == '\0') ? "" : (s))
275 	map->name = CHECKMAP(cmap0);
276 	map->type = CHECKMAP(cmap1);
277 	map->encoding = CHECKMAP(cmap2);
278 	map->encoding11 = CHECKMAP(cmap3);
279 #undef CHECKMAP
280 	map->cgihandler = NULL;
281 }
282 #endif /* NO_DYNAMIC_CONTENT */
283