1 15902770 2021-01-15 op /* -*- mode: fundamental; indent-tabs-mode: t; -*- */
5 15902770 2021-01-15 op * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
7 15902770 2021-01-15 op * Permission to use, copy, modify, and distribute this software for any
8 15902770 2021-01-15 op * purpose with or without fee is hereby granted, provided that the above
9 15902770 2021-01-15 op * copyright notice and this permission notice appear in all copies.
11 15902770 2021-01-15 op * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 15902770 2021-01-15 op * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 15902770 2021-01-15 op * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 15902770 2021-01-15 op * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 15902770 2021-01-15 op * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 15902770 2021-01-15 op * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 15902770 2021-01-15 op * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 002a84a1 2021-02-10 op #include <errno.h>
21 6abda252 2021-02-06 op #include <stdarg.h>
22 15902770 2021-01-15 op #include <stdio.h>
23 32693ee6 2021-01-28 op #include <string.h>
25 15902770 2021-01-15 op #include "gmid.h"
28 15902770 2021-01-15 op * #define YYDEBUG 1
29 15902770 2021-01-15 op * int yydebug = 1;
32 ca21e100 2021-02-04 op struct vhost *host;
33 ca21e100 2021-02-04 op struct location *loc;
35 13ed2fb6 2021-01-27 op int goterror = 0;
37 b8e64ccd 2021-03-31 op static struct vhost *new_vhost(void);
38 b8e64ccd 2021-03-31 op static struct location *new_location(void);
40 6abda252 2021-02-06 op void yyerror(const char*, ...);
41 13ed2fb6 2021-01-27 op int parse_portno(const char*);
42 13ed2fb6 2021-01-27 op void parse_conf(const char*);
43 e17642a7 2021-02-01 op char *ensure_absolute_path(char*);
44 6abda252 2021-02-06 op int check_block_code(int);
45 6abda252 2021-02-06 op char *check_block_fmt(char*);
46 6abda252 2021-02-06 op int check_strip_no(int);
47 a709ddf5 2021-02-07 op int check_prefork_num(int);
48 49b73ba1 2021-02-10 op void advance_loc(void);
49 c705ecb1 2021-05-03 op void only_once(const void*, const char*);
53 15902770 2021-01-15 op /* for bison: */
54 15902770 2021-01-15 op /* %define parse.error verbose */
61 d06d6f4b 2021-04-29 op %token TIPV6 TPORT TPROTOCOLS TMIME TDEFAULT TTYPE TCHROOT TUSER TSERVER
62 d06d6f4b 2021-04-29 op %token TPREFORK TLOCATION TCERT TKEY TROOT TCGI TENV TLANG TLOG TINDEX TAUTO
63 cc8c2901 2021-04-29 op %token TSTRIP TBLOCK TRETURN TENTRYPOINT TREQUIRE TCLIENT TCA TALIAS
67 15902770 2021-01-15 op %token <str> TSTRING
68 15902770 2021-01-15 op %token <num> TNUM
69 15902770 2021-01-15 op %token <num> TBOOL
73 15902770 2021-01-15 op conf : options vhosts ;
75 15902770 2021-01-15 op options : /* empty */
76 15902770 2021-01-15 op | options option
79 eb59f87e 2021-02-09 op option : TCHROOT TSTRING { conf.chroot = $2; }
80 eb59f87e 2021-02-09 op | TIPV6 TBOOL { conf.ipv6 = $2; }
81 eb59f87e 2021-02-09 op | TMIME TSTRING TSTRING { add_mime(&conf.mime, $2, $3); }
82 15902770 2021-01-15 op | TPORT TNUM { conf.port = $2; }
83 eb59f87e 2021-02-09 op | TPREFORK TNUM { conf.prefork = check_prefork_num($2); }
84 5bc3c98e 2021-01-15 op | TPROTOCOLS TSTRING {
85 5bc3c98e 2021-01-15 op if (tls_config_parse_protocols(&conf.protos, $2) == -1)
86 002a84a1 2021-02-10 op yyerror("invalid protocols string \"%s\"", $2);
88 ae08ec7d 2021-01-25 op | TUSER TSTRING { conf.user = $2; }
91 15902770 2021-01-15 op vhosts : /* empty */
92 15902770 2021-01-15 op | vhosts vhost
95 b8e64ccd 2021-03-31 op vhost : TSERVER TSTRING {
96 b8e64ccd 2021-03-31 op host = new_vhost();
97 b8e64ccd 2021-03-31 op TAILQ_INSERT_HEAD(&hosts, host, vhosts);
99 b8e64ccd 2021-03-31 op loc = new_location();
100 b8e64ccd 2021-03-31 op TAILQ_INSERT_HEAD(&host->locations, loc, locations);
102 b8e64ccd 2021-03-31 op loc->match = xstrdup("*");
103 15902770 2021-01-15 op host->domain = $2;
105 cbeee4ca 2021-01-28 op if (strstr($2, "xn--") != NULL) {
106 cbeee4ca 2021-01-28 op warnx("%s:%d \"%s\" looks like punycode: "
107 415ac7a2 2021-01-28 op "you should use the decoded hostname.",
108 415ac7a2 2021-01-28 op config_path, yylineno, $2);
110 b8e64ccd 2021-03-31 op } '{' servopts locations '}' {
112 fdea6aa0 2021-04-30 op if (host->cert == NULL || host->key == NULL)
113 002a84a1 2021-02-10 op yyerror("invalid vhost definition: %s", $2);
115 15902770 2021-01-15 op | error '}' { yyerror("error in server directive"); }
118 15902770 2021-01-15 op servopts : /* empty */
119 15902770 2021-01-15 op | servopts servopt
122 cc8c2901 2021-04-29 op servopt : TALIAS TSTRING {
123 cc8c2901 2021-04-29 op struct alist *a;
125 cc8c2901 2021-04-29 op a = xcalloc(1, sizeof(*a));
126 cc8c2901 2021-04-29 op a->alias = $2;
127 cc8c2901 2021-04-29 op if (TAILQ_EMPTY(&host->aliases))
128 cc8c2901 2021-04-29 op TAILQ_INSERT_HEAD(&host->aliases, a, aliases);
130 cc8c2901 2021-04-29 op TAILQ_INSERT_TAIL(&host->aliases, a, aliases);
132 c705ecb1 2021-05-03 op | TCERT TSTRING {
133 c705ecb1 2021-05-03 op only_once(host->cert, "cert");
134 c705ecb1 2021-05-03 op host->cert = ensure_absolute_path($2);
136 15902770 2021-01-15 op | TCGI TSTRING {
137 c705ecb1 2021-05-03 op only_once(host->cgi, "cgi");
138 15902770 2021-01-15 op /* drop the starting '/', if any */
139 709f4c94 2021-02-04 op if (*$2 == '/')
140 709f4c94 2021-02-04 op memmove($2, $2+1, strlen($2));
141 709f4c94 2021-02-04 op host->cgi = $2;
143 e3ddf390 2021-02-06 op | TENTRYPOINT TSTRING {
144 c705ecb1 2021-05-03 op only_once(host->entrypoint, "entrypoint");
145 e3ddf390 2021-02-06 op while (*$2 == '/')
146 e3ddf390 2021-02-06 op memmove($2, $2+1, strlen($2));
147 e3ddf390 2021-02-06 op host->entrypoint = $2;
149 9cc630aa 2021-04-28 op | TENV TSTRING TSTRING {
150 9cc630aa 2021-04-28 op struct envlist *e;
152 9cc630aa 2021-04-28 op e = xcalloc(1, sizeof(*e));
153 9cc630aa 2021-04-28 op e->name = $2;
154 9cc630aa 2021-04-28 op e->value = $3;
155 9cc630aa 2021-04-28 op if (TAILQ_EMPTY(&host->env))
156 9cc630aa 2021-04-28 op TAILQ_INSERT_HEAD(&host->env, e, envs);
158 9cc630aa 2021-04-28 op TAILQ_INSERT_TAIL(&host->env, e, envs);
160 c705ecb1 2021-05-03 op | TKEY TSTRING {
161 c705ecb1 2021-05-03 op only_once(host->key, "key");
162 c705ecb1 2021-05-03 op host->key = ensure_absolute_path($2);
167 c8b74339 2021-01-24 op locations : /* empty */
168 c8b74339 2021-01-24 op | locations location
171 49b73ba1 2021-02-10 op location : TLOCATION { advance_loc(); } TSTRING '{' locopts '}' {
172 49b73ba1 2021-02-10 op /* drop the starting '/' if any */
173 49b73ba1 2021-02-10 op if (*$3 == '/')
174 49b73ba1 2021-02-10 op memmove($3, $3+1, strlen($3));
175 49b73ba1 2021-02-10 op loc->match = $3;
180 c8b74339 2021-01-24 op locopts : /* empty */
181 c8b74339 2021-01-24 op | locopts locopt
184 eb59f87e 2021-02-09 op locopt : TAUTO TINDEX TBOOL { loc->auto_index = $3 ? 1 : -1; }
185 6abda252 2021-02-06 op | TBLOCK TRETURN TNUM TSTRING {
186 c705ecb1 2021-05-03 op only_once(loc->block_fmt, "block");
187 6abda252 2021-02-06 op loc->block_fmt = check_block_fmt($4);
188 6abda252 2021-02-06 op loc->block_code = check_block_code($3);
190 6abda252 2021-02-06 op | TBLOCK TRETURN TNUM {
191 c705ecb1 2021-05-03 op only_once(loc->block_fmt, "block");
192 6abda252 2021-02-06 op loc->block_fmt = xstrdup("temporary failure");
193 6abda252 2021-02-06 op loc->block_code = check_block_code($3);
194 6abda252 2021-02-06 op if ($3 >= 30 && $3 < 40)
195 6abda252 2021-02-06 op yyerror("missing `meta' for block return %d", $3);
198 c705ecb1 2021-05-03 op only_once(loc->block_fmt, "block");
199 6abda252 2021-02-06 op loc->block_fmt = xstrdup("temporary failure");
200 6abda252 2021-02-06 op loc->block_code = 40;
202 eb59f87e 2021-02-09 op | TDEFAULT TTYPE TSTRING {
203 c705ecb1 2021-05-03 op only_once(loc->default_mime, "default type");
204 eb59f87e 2021-02-09 op loc->default_mime = $3;
206 eb59f87e 2021-02-09 op | TINDEX TSTRING {
207 c705ecb1 2021-05-03 op only_once(loc->index, "index");
208 eb59f87e 2021-02-09 op loc->index = $2;
210 eb59f87e 2021-02-09 op | TLANG TSTRING {
211 c705ecb1 2021-05-03 op only_once(loc->lang, "lang");
212 eb59f87e 2021-02-09 op loc->lang = $2;
214 793835cb 2021-02-23 op | TLOG TBOOL { loc->disable_log = !$2; }
215 02be96c6 2021-02-09 op | TREQUIRE TCLIENT TCA TSTRING {
216 c705ecb1 2021-05-03 op only_once(loc->reqca, "require client ca");
217 adbe6a64 2021-04-30 op ensure_absolute_path($4);
218 02be96c6 2021-02-09 op if ((loc->reqca = load_ca($4)) == NULL)
219 02be96c6 2021-02-09 op yyerror("couldn't load ca cert: %s", $4);
222 fdea6aa0 2021-04-30 op | TROOT TSTRING {
223 c705ecb1 2021-05-03 op only_once(loc->dir, "root");
224 fdea6aa0 2021-04-30 op loc->dir = ensure_absolute_path($2);
226 eb59f87e 2021-02-09 op | TSTRIP TNUM { loc->strip = check_strip_no($2); }
231 b8e64ccd 2021-03-31 op static struct vhost *
232 b8e64ccd 2021-03-31 op new_vhost(void)
234 b8e64ccd 2021-03-31 op return xcalloc(1, sizeof(struct vhost));
237 b8e64ccd 2021-03-31 op static struct location *
238 b8e64ccd 2021-03-31 op new_location(void)
240 fdea6aa0 2021-04-30 op struct location *l;
242 fdea6aa0 2021-04-30 op l = xcalloc(1, sizeof(*l));
243 fdea6aa0 2021-04-30 op l->dirfd = -1;
248 6abda252 2021-02-06 op yyerror(const char *msg, ...)
252 13ed2fb6 2021-01-27 op goterror = 1;
254 6abda252 2021-02-06 op va_start(ap, msg);
255 6abda252 2021-02-06 op fprintf(stderr, "%s:%d: ", config_path, yylineno);
256 6abda252 2021-02-06 op vfprintf(stderr, msg, ap);
257 a1373913 2021-02-07 op fprintf(stderr, "\n");
262 13ed2fb6 2021-01-27 op parse_portno(const char *p)
264 13ed2fb6 2021-01-27 op const char *errstr;
267 13ed2fb6 2021-01-27 op n = strtonum(p, 0, UINT16_MAX, &errstr);
268 13ed2fb6 2021-01-27 op if (errstr != NULL)
269 2d34f732 2021-02-10 op yyerror("port number is %s: %s", errstr, p);
274 13ed2fb6 2021-01-27 op parse_conf(const char *path)
276 13ed2fb6 2021-01-27 op config_path = path;
277 13ed2fb6 2021-01-27 op if ((yyin = fopen(path, "r")) == NULL)
278 48b69cb2 2021-04-28 op err(1, "cannot open config: %s", path);
280 13ed2fb6 2021-01-27 op fclose(yyin);
282 13ed2fb6 2021-01-27 op if (goterror)
285 b8e64ccd 2021-03-31 op if (TAILQ_FIRST(&hosts)->domain == NULL)
286 48b69cb2 2021-04-28 op errx(1, "no vhost defined in %s", path);
290 e17642a7 2021-02-01 op ensure_absolute_path(char *path)
292 e17642a7 2021-02-01 op if (path == NULL || *path != '/')
293 adbe6a64 2021-04-30 op yyerror("not an absolute path: %s", path);
298 6abda252 2021-02-06 op check_block_code(int n)
300 6abda252 2021-02-06 op if (n < 10 || n >= 70 || (n >= 20 && n <= 29))
301 6abda252 2021-02-06 op yyerror("invalid block code %d", n);
306 6abda252 2021-02-06 op check_block_fmt(char *fmt)
310 6abda252 2021-02-06 op for (s = fmt; *s; ++s) {
311 6abda252 2021-02-06 op if (*s != '%')
313 6abda252 2021-02-06 op switch (*++s) {
321 6abda252 2021-02-06 op yyerror("invalid format specifier %%%c", *s);
329 6abda252 2021-02-06 op check_strip_no(int n)
332 6abda252 2021-02-06 op yyerror("invalid strip number %d", n);
337 a709ddf5 2021-02-07 op check_prefork_num(int n)
339 2c3e53da 2021-03-03 op if (n <= 0 || n >= PROC_MAX)
340 a709ddf5 2021-02-07 op yyerror("invalid prefork number %d", n);
345 49b73ba1 2021-02-10 op advance_loc(void)
347 b8e64ccd 2021-03-31 op loc = new_location();
348 b8e64ccd 2021-03-31 op TAILQ_INSERT_TAIL(&host->locations, loc, locations);
352 c705ecb1 2021-05-03 op only_once(const void *ptr, const char *name)
354 c705ecb1 2021-05-03 op if (ptr != NULL)
355 c705ecb1 2021-05-03 op yyerror("`%s' specified more than once", name);
