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 15902770 2021-01-15 op #include <err.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;
34 ca21e100 2021-02-04 op struct location *loc;
37 13ed2fb6 2021-01-27 op int goterror = 0;
39 6abda252 2021-02-06 op void yyerror(const char*, ...);
40 13ed2fb6 2021-01-27 op int parse_portno(const char*);
41 13ed2fb6 2021-01-27 op void parse_conf(const char*);
42 e17642a7 2021-02-01 op char *ensure_absolute_path(char*);
43 6abda252 2021-02-06 op int check_block_code(int);
44 6abda252 2021-02-06 op char *check_block_fmt(char*);
45 6abda252 2021-02-06 op int check_strip_no(int);
46 a709ddf5 2021-02-07 op int check_prefork_num(int);
50 15902770 2021-01-15 op /* for bison: */
51 15902770 2021-01-15 op /* %define parse.error verbose */
58 46af8c6c 2021-01-27 op %token TIPV6 TPORT TPROTOCOLS TMIME TDEFAULT TTYPE
59 a709ddf5 2021-02-07 op %token TCHROOT TUSER TSERVER TPREFORK
60 252908e6 2021-01-24 op %token TLOCATION TCERT TKEY TROOT TCGI TLANG TINDEX TAUTO
61 02be96c6 2021-02-09 op %token TSTRIP TBLOCK TRETURN TENTRYPOINT TREQUIRE TCLIENT TCA
64 15902770 2021-01-15 op %token <str> TSTRING
65 15902770 2021-01-15 op %token <num> TNUM
66 15902770 2021-01-15 op %token <num> TBOOL
70 15902770 2021-01-15 op conf : options vhosts ;
72 15902770 2021-01-15 op options : /* empty */
73 15902770 2021-01-15 op | options option
76 eb59f87e 2021-02-09 op option : TCHROOT TSTRING { conf.chroot = $2; }
77 eb59f87e 2021-02-09 op | TIPV6 TBOOL { conf.ipv6 = $2; }
78 eb59f87e 2021-02-09 op | TMIME TSTRING TSTRING { add_mime(&conf.mime, $2, $3); }
79 15902770 2021-01-15 op | TPORT TNUM { conf.port = $2; }
80 eb59f87e 2021-02-09 op | TPREFORK TNUM { conf.prefork = check_prefork_num($2); }
81 5bc3c98e 2021-01-15 op | TPROTOCOLS TSTRING {
82 5bc3c98e 2021-01-15 op if (tls_config_parse_protocols(&conf.protos, $2) == -1)
83 5bc3c98e 2021-01-15 op errx(1, "invalid protocols string \"%s\"", $2);
85 ae08ec7d 2021-01-25 op | TUSER TSTRING { conf.user = $2; }
88 15902770 2021-01-15 op vhosts : /* empty */
89 15902770 2021-01-15 op | vhosts vhost
92 c8b74339 2021-01-24 op vhost : TSERVER TSTRING '{' servopts locations '}' {
93 ca21e100 2021-02-04 op host->locations[0].match = xstrdup("*");
94 15902770 2021-01-15 op host->domain = $2;
96 cbeee4ca 2021-01-28 op if (strstr($2, "xn--") != NULL) {
97 cbeee4ca 2021-01-28 op warnx("%s:%d \"%s\" looks like punycode: "
98 415ac7a2 2021-01-28 op "you should use the decoded hostname.",
99 415ac7a2 2021-01-28 op config_path, yylineno, $2);
102 15902770 2021-01-15 op if (host->cert == NULL || host->key == NULL ||
103 15902770 2021-01-15 op host->dir == NULL)
104 15902770 2021-01-15 op errx(1, "invalid vhost definition: %s", $2);
106 15902770 2021-01-15 op if (++ihost == HOSTSLEN)
107 15902770 2021-01-15 op errx(1, "too much vhosts defined");
110 c8b74339 2021-01-24 op loc = &host->locations[0];
113 15902770 2021-01-15 op | error '}' { yyerror("error in server directive"); }
116 15902770 2021-01-15 op servopts : /* empty */
117 15902770 2021-01-15 op | servopts servopt
120 e17642a7 2021-02-01 op servopt : TCERT TSTRING { host->cert = ensure_absolute_path($2); }
121 15902770 2021-01-15 op | TCGI TSTRING {
122 15902770 2021-01-15 op /* drop the starting '/', if any */
123 709f4c94 2021-02-04 op if (*$2 == '/')
124 709f4c94 2021-02-04 op memmove($2, $2+1, strlen($2));
125 709f4c94 2021-02-04 op host->cgi = $2;
127 e3ddf390 2021-02-06 op | TENTRYPOINT TSTRING {
128 e3ddf390 2021-02-06 op if (host->entrypoint != NULL)
129 e3ddf390 2021-02-06 op yyerror("`entrypoint' specified more than once");
130 e3ddf390 2021-02-06 op while (*$2 == '/')
131 e3ddf390 2021-02-06 op memmove($2, $2+1, strlen($2));
132 e3ddf390 2021-02-06 op host->entrypoint = $2;
134 eb59f87e 2021-02-09 op | TKEY TSTRING { host->key = ensure_absolute_path($2); }
135 eb59f87e 2021-02-09 op | TROOT TSTRING { host->dir = ensure_absolute_path($2); }
139 c8b74339 2021-01-24 op locations : /* empty */
140 c8b74339 2021-01-24 op | locations location
143 c8b74339 2021-01-24 op location : TLOCATION TSTRING '{' locopts '}' {
144 c8b74339 2021-01-24 op loc->match = $2;
145 c8b74339 2021-01-24 op if (++iloc == LOCLEN)
146 c8b74339 2021-01-24 op errx(1, "too much location rules defined");
152 c8b74339 2021-01-24 op locopts : /* empty */
153 c8b74339 2021-01-24 op | locopts locopt
156 eb59f87e 2021-02-09 op locopt : TAUTO TINDEX TBOOL { loc->auto_index = $3 ? 1 : -1; }
157 6abda252 2021-02-06 op | TBLOCK TRETURN TNUM TSTRING {
158 6abda252 2021-02-06 op if (loc->block_fmt != NULL)
159 6abda252 2021-02-06 op yyerror("`block' rule specified more than once");
160 6abda252 2021-02-06 op loc->block_fmt = check_block_fmt($4);
161 6abda252 2021-02-06 op loc->block_code = check_block_code($3);
163 6abda252 2021-02-06 op | TBLOCK TRETURN TNUM {
164 6abda252 2021-02-06 op if (loc->block_fmt != NULL)
165 6abda252 2021-02-06 op yyerror("`block' rule specified more than once");
166 6abda252 2021-02-06 op loc->block_fmt = xstrdup("temporary failure");
167 6abda252 2021-02-06 op loc->block_code = check_block_code($3);
168 6abda252 2021-02-06 op if ($3 >= 30 && $3 < 40)
169 6abda252 2021-02-06 op yyerror("missing `meta' for block return %d", $3);
172 6abda252 2021-02-06 op if (loc->block_fmt != NULL)
173 6abda252 2021-02-06 op yyerror("`block' rule specified more than once");
174 6abda252 2021-02-06 op loc->block_fmt = xstrdup("temporary failure");
175 6abda252 2021-02-06 op loc->block_code = 40;
177 eb59f87e 2021-02-09 op | TDEFAULT TTYPE TSTRING {
178 eb59f87e 2021-02-09 op if (loc->default_mime != NULL)
179 eb59f87e 2021-02-09 op yyerror("`default type' specified more than once");
180 eb59f87e 2021-02-09 op loc->default_mime = $3;
182 eb59f87e 2021-02-09 op | TINDEX TSTRING {
183 eb59f87e 2021-02-09 op if (loc->index != NULL)
184 eb59f87e 2021-02-09 op yyerror("`index' specified more than once");
185 eb59f87e 2021-02-09 op loc->index = $2;
187 eb59f87e 2021-02-09 op | TLANG TSTRING {
188 eb59f87e 2021-02-09 op if (loc->lang != NULL)
189 eb59f87e 2021-02-09 op yyerror("`lang' specified more than once");
190 eb59f87e 2021-02-09 op loc->lang = $2;
192 02be96c6 2021-02-09 op | TREQUIRE TCLIENT TCA TSTRING {
193 02be96c6 2021-02-09 op if (loc->reqca != NULL)
194 02be96c6 2021-02-09 op yyerror("`require client ca' specified more than once");
195 02be96c6 2021-02-09 op if (*$4 != '/')
196 02be96c6 2021-02-09 op yyerror("path to certificate must be absolute: %s", $4);
197 02be96c6 2021-02-09 op if ((loc->reqca = load_ca($4)) == NULL)
198 02be96c6 2021-02-09 op yyerror("couldn't load ca cert: %s", $4);
201 eb59f87e 2021-02-09 op | TSTRIP TNUM { loc->strip = check_strip_no($2); }
207 6abda252 2021-02-06 op yyerror(const char *msg, ...)
211 13ed2fb6 2021-01-27 op goterror = 1;
213 6abda252 2021-02-06 op va_start(ap, msg);
214 6abda252 2021-02-06 op fprintf(stderr, "%s:%d: ", config_path, yylineno);
215 6abda252 2021-02-06 op vfprintf(stderr, msg, ap);
216 a1373913 2021-02-07 op fprintf(stderr, "\n");
221 13ed2fb6 2021-01-27 op parse_portno(const char *p)
223 13ed2fb6 2021-01-27 op const char *errstr;
226 13ed2fb6 2021-01-27 op n = strtonum(p, 0, UINT16_MAX, &errstr);
227 13ed2fb6 2021-01-27 op if (errstr != NULL)
228 13ed2fb6 2021-01-27 op errx(1, "port number is %s: %s", errstr, p);
233 13ed2fb6 2021-01-27 op parse_conf(const char *path)
235 ca21e100 2021-02-04 op host = &hosts[0];
237 ca21e100 2021-02-04 op loc = &hosts[0].locations[0];
240 13ed2fb6 2021-01-27 op config_path = path;
241 13ed2fb6 2021-01-27 op if ((yyin = fopen(path, "r")) == NULL)
242 13ed2fb6 2021-01-27 op fatal("cannot open config %s", path);
244 13ed2fb6 2021-01-27 op fclose(yyin);
246 13ed2fb6 2021-01-27 op if (goterror)
251 e17642a7 2021-02-01 op ensure_absolute_path(char *path)
253 e17642a7 2021-02-01 op if (path == NULL || *path != '/')
254 e17642a7 2021-02-01 op yyerror("not an absolute path");
259 6abda252 2021-02-06 op check_block_code(int n)
261 6abda252 2021-02-06 op if (n < 10 || n >= 70 || (n >= 20 && n <= 29))
262 6abda252 2021-02-06 op yyerror("invalid block code %d", n);
267 6abda252 2021-02-06 op check_block_fmt(char *fmt)
271 6abda252 2021-02-06 op for (s = fmt; *s; ++s) {
272 6abda252 2021-02-06 op if (*s != '%')
274 6abda252 2021-02-06 op switch (*++s) {
282 6abda252 2021-02-06 op yyerror("invalid format specifier %%%c", *s);
290 6abda252 2021-02-06 op check_strip_no(int n)
293 6abda252 2021-02-06 op yyerror("invalid strip number %d", n);
298 a709ddf5 2021-02-07 op check_prefork_num(int n)
301 a709ddf5 2021-02-07 op yyerror("invalid prefork number %d", n);