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);
52 15902770 2021-01-15 op /* for bison: */
53 15902770 2021-01-15 op /* %define parse.error verbose */
60 46af8c6c 2021-01-27 op %token TIPV6 TPORT TPROTOCOLS TMIME TDEFAULT TTYPE
61 a709ddf5 2021-02-07 op %token TCHROOT TUSER TSERVER TPREFORK
62 9cc630aa 2021-04-28 op %token TLOCATION TCERT TKEY TROOT TCGI TENV TLANG TLOG TINDEX TAUTO
63 02be96c6 2021-02-09 op %token TSTRIP TBLOCK TRETURN TENTRYPOINT TREQUIRE TCLIENT TCA
66 15902770 2021-01-15 op %token <str> TSTRING
67 15902770 2021-01-15 op %token <num> TNUM
68 15902770 2021-01-15 op %token <num> TBOOL
72 15902770 2021-01-15 op conf : options vhosts ;
74 15902770 2021-01-15 op options : /* empty */
75 15902770 2021-01-15 op | options option
78 eb59f87e 2021-02-09 op option : TCHROOT TSTRING { conf.chroot = $2; }
79 eb59f87e 2021-02-09 op | TIPV6 TBOOL { conf.ipv6 = $2; }
80 eb59f87e 2021-02-09 op | TMIME TSTRING TSTRING { add_mime(&conf.mime, $2, $3); }
81 15902770 2021-01-15 op | TPORT TNUM { conf.port = $2; }
82 eb59f87e 2021-02-09 op | TPREFORK TNUM { conf.prefork = check_prefork_num($2); }
83 5bc3c98e 2021-01-15 op | TPROTOCOLS TSTRING {
84 5bc3c98e 2021-01-15 op if (tls_config_parse_protocols(&conf.protos, $2) == -1)
85 002a84a1 2021-02-10 op yyerror("invalid protocols string \"%s\"", $2);
87 ae08ec7d 2021-01-25 op | TUSER TSTRING { conf.user = $2; }
90 15902770 2021-01-15 op vhosts : /* empty */
91 15902770 2021-01-15 op | vhosts vhost
94 b8e64ccd 2021-03-31 op vhost : TSERVER TSTRING {
95 b8e64ccd 2021-03-31 op host = new_vhost();
96 b8e64ccd 2021-03-31 op TAILQ_INSERT_HEAD(&hosts, host, vhosts);
98 b8e64ccd 2021-03-31 op loc = new_location();
99 b8e64ccd 2021-03-31 op TAILQ_INSERT_HEAD(&host->locations, loc, locations);
101 b8e64ccd 2021-03-31 op loc->match = xstrdup("*");
102 15902770 2021-01-15 op host->domain = $2;
104 cbeee4ca 2021-01-28 op if (strstr($2, "xn--") != NULL) {
105 cbeee4ca 2021-01-28 op warnx("%s:%d \"%s\" looks like punycode: "
106 415ac7a2 2021-01-28 op "you should use the decoded hostname.",
107 415ac7a2 2021-01-28 op config_path, yylineno, $2);
109 b8e64ccd 2021-03-31 op } '{' servopts locations '}' {
111 15902770 2021-01-15 op if (host->cert == NULL || host->key == NULL ||
112 15902770 2021-01-15 op host->dir == 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 e17642a7 2021-02-01 op servopt : TCERT TSTRING { host->cert = ensure_absolute_path($2); }
123 15902770 2021-01-15 op | TCGI TSTRING {
124 15902770 2021-01-15 op /* drop the starting '/', if any */
125 709f4c94 2021-02-04 op if (*$2 == '/')
126 709f4c94 2021-02-04 op memmove($2, $2+1, strlen($2));
127 709f4c94 2021-02-04 op host->cgi = $2;
129 e3ddf390 2021-02-06 op | TENTRYPOINT TSTRING {
130 e3ddf390 2021-02-06 op if (host->entrypoint != NULL)
131 e3ddf390 2021-02-06 op yyerror("`entrypoint' specified more than once");
132 e3ddf390 2021-02-06 op while (*$2 == '/')
133 e3ddf390 2021-02-06 op memmove($2, $2+1, strlen($2));
134 e3ddf390 2021-02-06 op host->entrypoint = $2;
136 9cc630aa 2021-04-28 op | TENV TSTRING TSTRING {
137 9cc630aa 2021-04-28 op struct envlist *e;
139 9cc630aa 2021-04-28 op e = xcalloc(1, sizeof(*e));
140 9cc630aa 2021-04-28 op e->name = $2;
141 9cc630aa 2021-04-28 op e->value = $3;
142 9cc630aa 2021-04-28 op if (TAILQ_EMPTY(&host->env))
143 9cc630aa 2021-04-28 op TAILQ_INSERT_HEAD(&host->env, e, envs);
145 9cc630aa 2021-04-28 op TAILQ_INSERT_TAIL(&host->env, e, envs);
147 eb59f87e 2021-02-09 op | TKEY TSTRING { host->key = ensure_absolute_path($2); }
148 eb59f87e 2021-02-09 op | TROOT TSTRING { host->dir = ensure_absolute_path($2); }
152 c8b74339 2021-01-24 op locations : /* empty */
153 c8b74339 2021-01-24 op | locations location
156 49b73ba1 2021-02-10 op location : TLOCATION { advance_loc(); } TSTRING '{' locopts '}' {
157 49b73ba1 2021-02-10 op /* drop the starting '/' if any */
158 49b73ba1 2021-02-10 op if (*$3 == '/')
159 49b73ba1 2021-02-10 op memmove($3, $3+1, strlen($3));
160 49b73ba1 2021-02-10 op loc->match = $3;
165 c8b74339 2021-01-24 op locopts : /* empty */
166 c8b74339 2021-01-24 op | locopts locopt
169 eb59f87e 2021-02-09 op locopt : TAUTO TINDEX TBOOL { loc->auto_index = $3 ? 1 : -1; }
170 6abda252 2021-02-06 op | TBLOCK TRETURN TNUM TSTRING {
171 6abda252 2021-02-06 op if (loc->block_fmt != NULL)
172 6abda252 2021-02-06 op yyerror("`block' rule specified more than once");
173 6abda252 2021-02-06 op loc->block_fmt = check_block_fmt($4);
174 6abda252 2021-02-06 op loc->block_code = check_block_code($3);
176 6abda252 2021-02-06 op | TBLOCK TRETURN TNUM {
177 6abda252 2021-02-06 op if (loc->block_fmt != NULL)
178 6abda252 2021-02-06 op yyerror("`block' rule specified more than once");
179 6abda252 2021-02-06 op loc->block_fmt = xstrdup("temporary failure");
180 6abda252 2021-02-06 op loc->block_code = check_block_code($3);
181 6abda252 2021-02-06 op if ($3 >= 30 && $3 < 40)
182 6abda252 2021-02-06 op yyerror("missing `meta' for block return %d", $3);
185 6abda252 2021-02-06 op if (loc->block_fmt != NULL)
186 6abda252 2021-02-06 op yyerror("`block' rule specified more than once");
187 6abda252 2021-02-06 op loc->block_fmt = xstrdup("temporary failure");
188 6abda252 2021-02-06 op loc->block_code = 40;
190 eb59f87e 2021-02-09 op | TDEFAULT TTYPE TSTRING {
191 eb59f87e 2021-02-09 op if (loc->default_mime != NULL)
192 eb59f87e 2021-02-09 op yyerror("`default type' specified more than once");
193 eb59f87e 2021-02-09 op loc->default_mime = $3;
195 eb59f87e 2021-02-09 op | TINDEX TSTRING {
196 eb59f87e 2021-02-09 op if (loc->index != NULL)
197 eb59f87e 2021-02-09 op yyerror("`index' specified more than once");
198 eb59f87e 2021-02-09 op loc->index = $2;
200 eb59f87e 2021-02-09 op | TLANG TSTRING {
201 eb59f87e 2021-02-09 op if (loc->lang != NULL)
202 eb59f87e 2021-02-09 op yyerror("`lang' specified more than once");
203 eb59f87e 2021-02-09 op loc->lang = $2;
205 793835cb 2021-02-23 op | TLOG TBOOL { loc->disable_log = !$2; }
206 02be96c6 2021-02-09 op | TREQUIRE TCLIENT TCA TSTRING {
207 02be96c6 2021-02-09 op if (loc->reqca != NULL)
208 02be96c6 2021-02-09 op yyerror("`require client ca' specified more than once");
209 02be96c6 2021-02-09 op if (*$4 != '/')
210 02be96c6 2021-02-09 op yyerror("path to certificate must be absolute: %s", $4);
211 02be96c6 2021-02-09 op if ((loc->reqca = load_ca($4)) == NULL)
212 02be96c6 2021-02-09 op yyerror("couldn't load ca cert: %s", $4);
215 eb59f87e 2021-02-09 op | TSTRIP TNUM { loc->strip = check_strip_no($2); }
220 b8e64ccd 2021-03-31 op static struct vhost *
221 b8e64ccd 2021-03-31 op new_vhost(void)
223 b8e64ccd 2021-03-31 op return xcalloc(1, sizeof(struct vhost));
226 b8e64ccd 2021-03-31 op static struct location *
227 b8e64ccd 2021-03-31 op new_location(void)
229 b8e64ccd 2021-03-31 op return xcalloc(1, sizeof(struct location));
233 6abda252 2021-02-06 op yyerror(const char *msg, ...)
237 13ed2fb6 2021-01-27 op goterror = 1;
239 6abda252 2021-02-06 op va_start(ap, msg);
240 6abda252 2021-02-06 op fprintf(stderr, "%s:%d: ", config_path, yylineno);
241 6abda252 2021-02-06 op vfprintf(stderr, msg, ap);
242 a1373913 2021-02-07 op fprintf(stderr, "\n");
247 13ed2fb6 2021-01-27 op parse_portno(const char *p)
249 13ed2fb6 2021-01-27 op const char *errstr;
252 13ed2fb6 2021-01-27 op n = strtonum(p, 0, UINT16_MAX, &errstr);
253 13ed2fb6 2021-01-27 op if (errstr != NULL)
254 2d34f732 2021-02-10 op yyerror("port number is %s: %s", errstr, p);
259 13ed2fb6 2021-01-27 op parse_conf(const char *path)
261 13ed2fb6 2021-01-27 op config_path = path;
262 13ed2fb6 2021-01-27 op if ((yyin = fopen(path, "r")) == NULL)
263 002a84a1 2021-02-10 op fatal("cannot open config: %s: %s", path, strerror(errno));
265 13ed2fb6 2021-01-27 op fclose(yyin);
267 13ed2fb6 2021-01-27 op if (goterror)
270 b8e64ccd 2021-03-31 op if (TAILQ_FIRST(&hosts)->domain == NULL)
271 b8e64ccd 2021-03-31 op fatal("no vhost defined in %s", path);
275 e17642a7 2021-02-01 op ensure_absolute_path(char *path)
277 e17642a7 2021-02-01 op if (path == NULL || *path != '/')
278 e17642a7 2021-02-01 op yyerror("not an absolute path");
283 6abda252 2021-02-06 op check_block_code(int n)
285 6abda252 2021-02-06 op if (n < 10 || n >= 70 || (n >= 20 && n <= 29))
286 6abda252 2021-02-06 op yyerror("invalid block code %d", n);
291 6abda252 2021-02-06 op check_block_fmt(char *fmt)
295 6abda252 2021-02-06 op for (s = fmt; *s; ++s) {
296 6abda252 2021-02-06 op if (*s != '%')
298 6abda252 2021-02-06 op switch (*++s) {
306 6abda252 2021-02-06 op yyerror("invalid format specifier %%%c", *s);
314 6abda252 2021-02-06 op check_strip_no(int n)
317 6abda252 2021-02-06 op yyerror("invalid strip number %d", n);
322 a709ddf5 2021-02-07 op check_prefork_num(int n)
324 2c3e53da 2021-03-03 op if (n <= 0 || n >= PROC_MAX)
325 a709ddf5 2021-02-07 op yyerror("invalid prefork number %d", n);
330 49b73ba1 2021-02-10 op advance_loc(void)
332 b8e64ccd 2021-03-31 op loc = new_location();
333 b8e64ccd 2021-03-31 op TAILQ_INSERT_TAIL(&host->locations, loc, locations);
