content-bozo.c revision 1.2
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
50static 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
177static struct content_map *dynamic_content_map;
178
179/* call with stage == 0 for full search, stage == 1 for dynamic only */
180struct content_map *
181match_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++) {
187again:
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 */
205const char *
206content_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 */
219const char *
220content_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
232static int dynamic_content_map_size;
233
234struct content_map *
235get_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 */
265void
266add_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