1 /* -*- mode: fundamental; indent-tabs-mode: t; -*- */
5 * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
37 static struct vhost *new_vhost(void);
38 static struct location *new_location(void);
40 void yyerror(const char*, ...);
41 int parse_portno(const char*);
42 void parse_conf(const char*);
43 char *ensure_absolute_path(char*);
44 int check_block_code(int);
45 char *check_block_fmt(char*);
46 int check_strip_no(int);
47 int check_prefork_num(int);
48 void advance_loc(void);
49 void only_once(const void*, const char*);
50 void only_oncei(int, const char*);
51 int fastcgi_conf(char *, char *, char *);
56 /* %define parse.error verbose */
63 %token TIPV6 TPORT TPROTOCOLS TMIME TDEFAULT TTYPE TCHROOT TUSER TSERVER
64 %token TPREFORK TLOCATION TCERT TKEY TROOT TCGI TENV TLANG TLOG TINDEX TAUTO
65 %token TSTRIP TBLOCK TRETURN TENTRYPOINT TREQUIRE TCLIENT TCA TALIAS TTCP
66 %token TFASTCGI TSPAWN
76 conf : options vhosts ;
82 option : TCHROOT TSTRING { conf.chroot = $2; }
83 | TIPV6 TBOOL { conf.ipv6 = $2; }
84 | TMIME TSTRING TSTRING { add_mime(&conf.mime, $2, $3); }
85 | TPORT TNUM { conf.port = $2; }
86 | TPREFORK TNUM { conf.prefork = check_prefork_num($2); }
87 | TPROTOCOLS TSTRING {
88 if (tls_config_parse_protocols(&conf.protos, $2) == -1)
89 yyerror("invalid protocols string \"%s\"", $2);
91 | TUSER TSTRING { conf.user = $2; }
98 vhost : TSERVER TSTRING {
100 TAILQ_INSERT_HEAD(&hosts, host, vhosts);
102 loc = new_location();
103 TAILQ_INSERT_HEAD(&host->locations, loc, locations);
105 loc->match = xstrdup("*");
108 if (strstr($2, "xn--") != NULL) {
109 warnx("%s:%d \"%s\" looks like punycode: "
110 "you should use the decoded hostname.",
111 config_path, yylineno, $2);
113 } '{' servopts locations '}' {
115 if (host->cert == NULL || host->key == NULL)
116 yyerror("invalid vhost definition: %s", $2);
118 | error '}' { yyerror("error in server directive"); }
121 servopts : /* empty */
125 servopt : TALIAS TSTRING {
128 a = xcalloc(1, sizeof(*a));
130 if (TAILQ_EMPTY(&host->aliases))
131 TAILQ_INSERT_HEAD(&host->aliases, a, aliases);
133 TAILQ_INSERT_TAIL(&host->aliases, a, aliases);
136 only_once(host->cert, "cert");
137 host->cert = ensure_absolute_path($2);
140 only_once(host->cgi, "cgi");
141 /* drop the starting '/', if any */
143 memmove($2, $2+1, strlen($2));
146 | TENTRYPOINT TSTRING {
147 only_once(host->entrypoint, "entrypoint");
149 memmove($2, $2+1, strlen($2));
150 host->entrypoint = $2;
152 | TENV TSTRING TSTRING {
155 e = xcalloc(1, sizeof(*e));
158 if (TAILQ_EMPTY(&host->env))
159 TAILQ_INSERT_HEAD(&host->env, e, envs);
161 TAILQ_INSERT_TAIL(&host->env, e, envs);
164 only_once(host->key, "key");
165 host->key = ensure_absolute_path($2);
170 locations : /* empty */
174 location : TLOCATION { advance_loc(); } TSTRING '{' locopts '}' {
175 /* drop the starting '/' if any */
177 memmove($3, $3+1, strlen($3));
183 locopts : /* empty */
187 locopt : TAUTO TINDEX TBOOL { loc->auto_index = $3 ? 1 : -1; }
188 | TBLOCK TRETURN TNUM TSTRING {
189 only_once(loc->block_fmt, "block");
190 loc->block_fmt = check_block_fmt($4);
191 loc->block_code = check_block_code($3);
193 | TBLOCK TRETURN TNUM {
194 only_once(loc->block_fmt, "block");
195 loc->block_fmt = xstrdup("temporary failure");
196 loc->block_code = check_block_code($3);
197 if ($3 >= 30 && $3 < 40)
198 yyerror("missing `meta' for block return %d", $3);
201 only_once(loc->block_fmt, "block");
202 loc->block_fmt = xstrdup("temporary failure");
203 loc->block_code = 40;
205 | TDEFAULT TTYPE TSTRING {
206 only_once(loc->default_mime, "default type");
207 loc->default_mime = $3;
211 only_once(loc->index, "index");
215 only_once(loc->lang, "lang");
218 | TLOG TBOOL { loc->disable_log = !$2; }
219 | TREQUIRE TCLIENT TCA TSTRING {
220 only_once(loc->reqca, "require client ca");
221 ensure_absolute_path($4);
222 if ((loc->reqca = load_ca($4)) == NULL)
223 yyerror("couldn't load ca cert: %s", $4);
227 only_once(loc->dir, "root");
228 loc->dir = ensure_absolute_path($2);
230 | TSTRIP TNUM { loc->strip = check_strip_no($2); }
233 fastcgi : TSPAWN TSTRING {
234 only_oncei(loc->fcgi, "fastcgi");
235 loc->fcgi = fastcgi_conf(NULL, NULL, $2);
238 only_oncei(loc->fcgi, "fastcgi");
239 loc->fcgi = fastcgi_conf($1, NULL, NULL);
241 | TTCP TSTRING TNUM {
243 if (asprintf(&c, "%d", $3) == -1)
245 only_oncei(loc->fcgi, "fastcgi");
246 loc->fcgi = fastcgi_conf($2, c, NULL);
249 only_oncei(loc->fcgi, "fastcgi");
250 loc->fcgi = fastcgi_conf($2, xstrdup("9000"), NULL);
252 | TTCP TSTRING TSTRING {
253 only_oncei(loc->fcgi, "fastcgi");
254 loc->fcgi = fastcgi_conf($2, $3, NULL);
260 static struct vhost *
263 return xcalloc(1, sizeof(struct vhost));
266 static struct location *
271 l = xcalloc(1, sizeof(*l));
278 yyerror(const char *msg, ...)
285 fprintf(stderr, "%s:%d: ", config_path, yylineno);
286 vfprintf(stderr, msg, ap);
287 fprintf(stderr, "\n");
292 parse_portno(const char *p)
297 n = strtonum(p, 0, UINT16_MAX, &errstr);
299 yyerror("port number is %s: %s", errstr, p);
304 parse_conf(const char *path)
307 if ((yyin = fopen(path, "r")) == NULL)
308 err(1, "cannot open config: %s", path);
315 if (TAILQ_FIRST(&hosts)->domain == NULL)
316 errx(1, "no vhost defined in %s", path);
320 ensure_absolute_path(char *path)
322 if (path == NULL || *path != '/')
323 yyerror("not an absolute path: %s", path);
328 check_block_code(int n)
330 if (n < 10 || n >= 70 || (n >= 20 && n <= 29))
331 yyerror("invalid block code %d", n);
336 check_block_fmt(char *fmt)
340 for (s = fmt; *s; ++s) {
351 yyerror("invalid format specifier %%%c", *s);
359 check_strip_no(int n)
362 yyerror("invalid strip number %d", n);
367 check_prefork_num(int n)
369 if (n <= 0 || n >= PROC_MAX)
370 yyerror("invalid prefork number %d", n);
377 loc = new_location();
378 TAILQ_INSERT_TAIL(&host->locations, loc, locations);
382 only_once(const void *ptr, const char *name)
385 yyerror("`%s' specified more than once", name);
389 only_oncei(int i, const char *name)
392 yyerror("`%s' specified more than once", name);
396 fastcgi_conf(char *path, char *port, char *prog)
401 for (i = 0; i < FCGI_MAX; ++i) {
404 if (f->path == NULL) {
412 /* XXX: what to do with prog? */
413 if (!strcmp(f->path, path) &&
414 ((port == NULL && f->port == NULL) ||
415 !strcmp(f->port, port))) {
422 yyerror("too much `fastcgi' rules defined.");