1 /* $NetBSD: content-bozo.c,v 1.22 2023/06/07 20:12:31 mrg Exp $ */
2
3 /* $eterna: content-bozo.c,v 1.17 2011/11/18 09:21:15 mrg Exp $ */
4
5 /*
6 * Copyright (c) 1997-2023 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 content-type handling for bozohttpd */
34
35 #include <sys/param.h>
36
37 #include <errno.h>
38 #include <string.h>
39
40 #include "bozohttpd.h"
41
42 /*
43 * this map and the functions below map between filenames and the
44 * content type and content encoding definitions. this should become
45 * a configuration file, perhaps like apache's mime.types (but that
46 * has less info per-entry).
47 */
48
49 static bozo_content_map_t static_content_map[] = {
50 { ".html", "text/html", "", "", NULL },
51 { ".htm", "text/html", "", "", NULL },
52 { ".gif", "image/gif", "", "", NULL },
53 { ".jpeg", "image/jpeg", "", "", NULL },
54 { ".jpg", "image/jpeg", "", "", NULL },
55 { ".jpe", "image/jpeg", "", "", NULL },
56 { ".png", "image/png", "", "", NULL },
57 { ".mp3", "audio/mpeg", "", "", NULL },
58 { ".css", "text/css", "", "", NULL },
59 { ".txt", "text/plain", "", "", NULL },
60 { ".swf", "application/x-shockwave-flash","", "", NULL },
61 { ".dcr", "application/x-director", "", "", NULL },
62 { ".pac", "application/x-ns-proxy-autoconfig", "", "", NULL },
63 { ".pa", "application/x-ns-proxy-autoconfig", "", "", NULL },
64 { ".tar", "multipart/x-tar", "", "", NULL },
65 { ".gtar", "application/x-gtar-compressed", "", "", NULL },
66 { ".tar.gz", "application/x-gtar-compressed", "", "", NULL },
67 { ".tar.bz2", "application/x-gtar-compressed", "", "", NULL },
68 { ".tar.xz", "application/x-gtar-compressed", "", "", NULL },
69 { ".tar.lz", "application/x-gtar-compressed", "", "", NULL },
70 { ".tar.zst", "application/x-gtar-compressed", "", "", NULL },
71 { ".tgz", "application/x-gtar-compressed", "", "", NULL },
72 { ".tbz2", "application/x-gtar-compressed", "", "", NULL },
73 { ".txz", "application/x-gtar-compressed", "", "", NULL },
74 { ".tlz", "application/x-gtar-compressed", "", "", NULL },
75 { ".tar.z", "application/x-gtar-compressed", "", "", NULL },
76 { ".tar.Z", "application/x-gtar-compressed", "", "", NULL },
77 { ".taz", "application/x-gtar-compressed", "", "", NULL },
78 { ".Z", "application/x-compress", "", "", NULL },
79 { ".gz", "application/x-gzip", "", "", NULL },
80 { ".z", "unknown", "", "", NULL },
81 { ".bz2", "application/x-bzip2", "", "", NULL },
82 { ".ogg", "application/x-ogg", "", "", NULL },
83 { ".mkv", "video/x-matroska", "", "", NULL },
84 { ".xbel", "text/xml", "", "", NULL },
85 { ".xml", "text/xml", "", "", NULL },
86 { ".xsl", "text/xml", "", "", NULL },
87 { ".hqx", "application/mac-binhex40", "", "", NULL },
88 { ".cpt", "application/mac-compactpro", "", "", NULL },
89 { ".doc", "application/msword", "", "", NULL },
90 { ".bin", "application/octet-stream", "", "", NULL },
91 { ".dms", "application/octet-stream", "", "", NULL },
92 { ".lha", "application/octet-stream", "", "", NULL },
93 { ".lzh", "application/octet-stream", "", "", NULL },
94 { ".exe", "application/octet-stream", "", "", NULL },
95 { ".class", "application/octet-stream", "", "", NULL },
96 { ".oda", "application/oda", "", "", NULL },
97 { ".pdf", "application/pdf", "", "", NULL },
98 { ".ai", "application/postscript", "", "", NULL },
99 { ".eps", "application/postscript", "", "", NULL },
100 { ".ps", "application/postscript", "", "", NULL },
101 { ".ppt", "application/powerpoint", "", "", NULL },
102 { ".rtf", "application/rtf", "", "", NULL },
103 { ".bcpio", "application/x-bcpio", "", "", NULL },
104 { ".torrent", "application/x-bittorrent", "", "", NULL },
105 { ".vcd", "application/x-cdlink", "", "", NULL },
106 { ".cpio", "application/x-cpio", "", "", NULL },
107 { ".csh", "application/x-csh", "", "", NULL },
108 { ".dir", "application/x-director", "", "", NULL },
109 { ".dxr", "application/x-director", "", "", NULL },
110 { ".dvi", "application/x-dvi", "", "", NULL },
111 { ".hdf", "application/x-hdf", "", "", NULL },
112 { ".cgi", "application/x-httpd-cgi", "", "", NULL },
113 { ".skp", "application/x-koan", "", "", NULL },
114 { ".skd", "application/x-koan", "", "", NULL },
115 { ".skt", "application/x-koan", "", "", NULL },
116 { ".skm", "application/x-koan", "", "", NULL },
117 { ".latex", "application/x-latex", "", "", NULL },
118 { ".mif", "application/x-mif", "", "", NULL },
119 { ".nc", "application/x-netcdf", "", "", NULL },
120 { ".cdf", "application/x-netcdf", "", "", NULL },
121 { ".patch", "application/x-patch", "", "", NULL },
122 { ".sh", "application/x-sh", "", "", NULL },
123 { ".shar", "application/x-shar", "", "", NULL },
124 { ".sit", "application/x-stuffit", "", "", NULL },
125 { ".sv4cpio", "application/x-sv4cpio", "", "", NULL },
126 { ".sv4crc", "application/x-sv4crc", "", "", NULL },
127 { ".tar", "application/x-tar", "", "", NULL },
128 { ".tcl", "application/x-tcl", "", "", NULL },
129 { ".tex", "application/x-tex", "", "", NULL },
130 { ".texinfo", "application/x-texinfo", "", "", NULL },
131 { ".texi", "application/x-texinfo", "", "", NULL },
132 { ".t", "application/x-troff", "", "", NULL },
133 { ".tr", "application/x-troff", "", "", NULL },
134 { ".roff", "application/x-troff", "", "", NULL },
135 { ".man", "application/x-troff-man", "", "", NULL },
136 { ".me", "application/x-troff-me", "", "", NULL },
137 { ".ms", "application/x-troff-ms", "", "", NULL },
138 { ".ustar", "application/x-ustar", "", "", NULL },
139 { ".src", "application/x-wais-source", "", "", NULL },
140 { ".zip", "application/zip", "", "", NULL },
141 { ".zipx", "application/zip", "", "", NULL },
142 { ".xz", "application/x-xz", "", "", NULL },
143 { ".zst", "application/x-zstd", "", "", NULL },
144 { ".sz", "application/x-snappy-framed", "", "", NULL },
145 { ".lz", "application/x-lzip", "", "", NULL },
146 { ".lzma", "application/x-lzma", "", "", NULL },
147 { ".lzo", "application/x-lzop", "", "", NULL },
148 { ".7z", "application/x-7z-compressed", "", "", NULL },
149 { ".lzo", "application/x-lzop", "", "", NULL },
150 { ".cab", "application/vnd.ms-cab-compressed", "", "", NULL },
151 { ".dmg", "application/x-apple-diskimage","", "", NULL },
152 { ".jar", "application/java-archive", "", "", NULL },
153 { ".rar", "application/x-rar-compressed", "", "", NULL },
154 { ".au", "audio/basic", "", "", NULL },
155 { ".snd", "audio/basic", "", "", NULL },
156 { ".mpga", "audio/mpeg", "", "", NULL },
157 { ".mp2", "audio/mpeg", "", "", NULL },
158 { ".m4a", "audio/mp4", "", "", NULL },
159 { ".aif", "audio/x-aiff", "", "", NULL },
160 { ".aiff", "audio/x-aiff", "", "", NULL },
161 { ".aifc", "audio/x-aiff", "", "", NULL },
162 { ".ram", "audio/x-pn-realaudio", "", "", NULL },
163 { ".rpm", "audio/x-pn-realaudio-plugin", "", "", NULL },
164 { ".ra", "audio/x-realaudio", "", "", NULL },
165 { ".wav", "audio/x-wav", "", "", NULL },
166 { ".pdb", "chemical/x-pdb", "", "", NULL },
167 { ".xyz", "chemical/x-pdb", "", "", NULL },
168 { ".ief", "image/ief", "", "", NULL },
169 { ".tiff", "image/tiff", "", "", NULL },
170 { ".tif", "image/tiff", "", "", NULL },
171 { ".ras", "image/x-cmu-raster", "", "", NULL },
172 { ".pnm", "image/x-portable-anymap", "", "", NULL },
173 { ".pbm", "image/x-portable-bitmap", "", "", NULL },
174 { ".pgm", "image/x-portable-graymap", "", "", NULL },
175 { ".ppm", "image/x-portable-pixmap", "", "", NULL },
176 { ".rgb", "image/x-rgb", "", "", NULL },
177 { ".xbm", "image/x-xbitmap", "", "", NULL },
178 { ".xpm", "image/x-xpixmap", "", "", NULL },
179 { ".xwd", "image/x-xwindowdump", "", "", NULL },
180 { ".rtx", "text/richtext", "", "", NULL },
181 { ".tsv", "text/tab-separated-values", "", "", NULL },
182 { ".etx", "text/x-setext", "", "", NULL },
183 { ".sgml", "text/x-sgml", "", "", NULL },
184 { ".sgm", "text/x-sgml", "", "", NULL },
185 { ".mpeg", "video/mpeg", "", "", NULL },
186 { ".mpg", "video/mpeg", "", "", NULL },
187 { ".mpe", "video/mpeg", "", "", NULL },
188 { ".ts", "video/mpeg", "", "", NULL },
189 { ".vob", "video/mpeg", "", "", NULL },
190 { ".mp4", "video/mp4", "", "", NULL },
191 { ".m4v", "video/mp4", "", "", NULL },
192 { ".qt", "video/quicktime", "", "", NULL },
193 { ".mov", "video/quicktime", "", "", NULL },
194 { ".avi", "video/x-msvideo", "", "", NULL },
195 { ".movie", "video/x-sgi-movie", "", "", NULL },
196 { ".ice", "x-conference/x-cooltalk", "", "", NULL },
197 { ".wrl", "x-world/x-vrml", "", "", NULL },
198 { ".vrml", "x-world/x-vrml", "", "", NULL },
199 { ".svg", "image/svg+xml", "", "", NULL },
200 { ".mobi", "application/x-mobipocket-ebook", "", "", NULL },
201 { ".iso", "application/octet-stream", "", "", NULL },
202 { NULL, NULL, NULL, NULL, NULL }
203 };
204
205 static bozo_content_map_t *
search_map(bozo_content_map_t * map,const char * name,size_t len)206 search_map(bozo_content_map_t *map, const char *name, size_t len)
207 {
208
209 for ( ; map && map->name; map++) {
210 const size_t namelen = strlen(map->name);
211
212 if (namelen < len &&
213 strcasecmp(map->name, name + (len - namelen)) == 0)
214 return map;
215 }
216 return NULL;
217 }
218
219 /* match a suffix on a file - dynamiconly means no static content search */
220 bozo_content_map_t *
bozo_match_content_map(bozohttpd_t * httpd,const char * name,const int dynamiconly)221 bozo_match_content_map(bozohttpd_t *httpd, const char *name,
222 const int dynamiconly)
223 {
224 bozo_content_map_t *map;
225 size_t len;
226
227 len = strlen(name);
228 map = search_map(httpd->dynamic_content_map, name, len);
229 if (map == NULL && !dynamiconly)
230 map = search_map(static_content_map, name, len);
231
232 return map;
233 }
234
235 /*
236 * given the file name, return a valid Content-Type: value.
237 */
238 const char *
bozo_content_type(bozo_httpreq_t * request,const char * file)239 bozo_content_type(bozo_httpreq_t *request, const char *file)
240 {
241 bozohttpd_t *httpd = request->hr_httpd;
242 bozo_content_map_t *map;
243
244 map = bozo_match_content_map(httpd, file, 0);
245 if (map)
246 return map->type;
247 return httpd->consts.text_plain;
248 }
249
250 /*
251 * given the file name, return a valid Content-Encoding: value.
252 */
253 const char *
bozo_content_encoding(bozo_httpreq_t * request,const char * file)254 bozo_content_encoding(bozo_httpreq_t *request, const char *file)
255 {
256 bozohttpd_t *httpd = request->hr_httpd;
257 bozo_content_map_t *map;
258
259 map = bozo_match_content_map(httpd, file, 0);
260 if (map)
261 return (request->hr_proto == httpd->consts.http_11) ?
262 map->encoding11 : map->encoding;
263 return NULL;
264 }
265
266 #ifndef NO_DYNAMIC_CONTENT
267
268 bozo_content_map_t *
bozo_get_content_map(bozohttpd_t * httpd,const char * name)269 bozo_get_content_map(bozohttpd_t *httpd, const char *name)
270 {
271 bozo_content_map_t *map;
272
273 if ((map = bozo_match_content_map(httpd, name, 1)) != NULL)
274 return map;
275
276 httpd->dynamic_content_map_size++;
277 httpd->dynamic_content_map = bozorealloc(httpd,
278 httpd->dynamic_content_map,
279 (httpd->dynamic_content_map_size + 1) * sizeof *map);
280 if (httpd->dynamic_content_map == NULL)
281 bozoerr(httpd, 1, "out of memory allocating content map");
282 map = &httpd->dynamic_content_map[httpd->dynamic_content_map_size];
283 map->name = map->type = map->encoding = map->encoding11 =
284 map->cgihandler = NULL;
285 map--;
286
287 return map;
288 }
289
290 /*
291 * mime content maps look like:
292 * ".name type encoding encoding11"
293 * where any of type, encoding or encoding11 a dash "-" means "".
294 * eg the .gtar, .tar.Z from above could be written like:
295 * ".gtar multipart/x-gtar - -"
296 * ".tar.Z multipart/x-tar x-compress compress"
297 * or
298 * ".gtar multipart/x-gtar"
299 * ".tar.Z multipart/x-tar x-compress compress"
300 * NOTE: we destroy 'arg'
301 */
302 void
bozo_add_content_map_mime(bozohttpd_t * httpd,const char * cmap0,const char * cmap1,const char * cmap2,const char * cmap3)303 bozo_add_content_map_mime(bozohttpd_t *httpd, const char *cmap0,
304 const char *cmap1, const char *cmap2, const char *cmap3)
305 {
306 bozo_content_map_t *map;
307
308 debug((httpd, DEBUG_FAT,
309 "add_content_map: name %s type %s enc %s enc11 %s ",
310 cmap0, cmap1, cmap2, cmap3));
311
312 map = bozo_get_content_map(httpd, cmap0);
313 #define CHECKMAP(s) (!s || ((s)[0] == '-' && (s)[1] == '\0') ? "" : (s))
314 map->name = CHECKMAP(cmap0);
315 map->type = CHECKMAP(cmap1);
316 map->encoding = CHECKMAP(cmap2);
317 map->encoding11 = CHECKMAP(cmap3);
318 #undef CHECKMAP
319 map->cgihandler = NULL;
320 }
321 #endif /* NO_DYNAMIC_CONTENT */
322