1 15902770 2021-01-15 op /* -*- mode: fundamental; indent-tabs-mode: t; -*- */
  2 15902770 2021-01-15 op %{
  3 15902770 2021-01-15 op 
  4 15902770 2021-01-15 op /*
  5 15902770 2021-01-15 op  * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
  6 15902770 2021-01-15 op  *
  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.
 10 15902770 2021-01-15 op  *
 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.
 18 15902770 2021-01-15 op  */
 19 15902770 2021-01-15 op 
 20 15902770 2021-01-15 op #include <err.h>
 21 15902770 2021-01-15 op #include <stdio.h>
 22 15902770 2021-01-15 op 
 23 15902770 2021-01-15 op #include "gmid.h"
 24 15902770 2021-01-15 op 
 25 15902770 2021-01-15 op /*
 26 15902770 2021-01-15 op  * #define YYDEBUG 1
 27 15902770 2021-01-15 op  * int yydebug = 1;
 28 15902770 2021-01-15 op  */
 29 15902770 2021-01-15 op 
 30 15902770 2021-01-15 op struct vhost *host = &hosts[0];
 31 15902770 2021-01-15 op size_t ihost = 0;
 32 15902770 2021-01-15 op 
 33 c8b74339 2021-01-24 op struct location *loc = &hosts[0].locations[0];
 34 c8b74339 2021-01-24 op size_t iloc = 0;
 35 c8b74339 2021-01-24 op 
 36 13ed2fb6 2021-01-27 op int goterror = 0;
 37 13ed2fb6 2021-01-27 op const char *config_path;
 38 15902770 2021-01-15 op 
 39 13ed2fb6 2021-01-27 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 13ed2fb6 2021-01-27 op 
 43 15902770 2021-01-15 op %}
 44 15902770 2021-01-15 op 
 45 15902770 2021-01-15 op /* for bison: */
 46 15902770 2021-01-15 op /* %define parse.error verbose */
 47 15902770 2021-01-15 op 
 48 15902770 2021-01-15 op %union {
 49 15902770 2021-01-15 op 	char		*str;
 50 15902770 2021-01-15 op 	int		 num;
 51 15902770 2021-01-15 op }
 52 15902770 2021-01-15 op 
 53 46af8c6c 2021-01-27 op %token TIPV6 TPORT TPROTOCOLS TMIME TDEFAULT TTYPE
 54 ae08ec7d 2021-01-25 op %token TCHROOT TUSER TSERVER
 55 252908e6 2021-01-24 op %token TLOCATION TCERT TKEY TROOT TCGI TLANG TINDEX TAUTO
 56 15902770 2021-01-15 op %token TERR
 57 15902770 2021-01-15 op 
 58 15902770 2021-01-15 op %token <str>	TSTRING
 59 15902770 2021-01-15 op %token <num>	TNUM
 60 15902770 2021-01-15 op %token <num>	TBOOL
 61 15902770 2021-01-15 op 
 62 15902770 2021-01-15 op %%
 63 15902770 2021-01-15 op 
 64 15902770 2021-01-15 op conf		: options vhosts ;
 65 15902770 2021-01-15 op 
 66 15902770 2021-01-15 op options		: /* empty */
 67 15902770 2021-01-15 op 		| options option
 68 15902770 2021-01-15 op 		;
 69 15902770 2021-01-15 op 
 70 46af8c6c 2021-01-27 op option		: TIPV6 TBOOL		{ conf.ipv6 = $2; }
 71 15902770 2021-01-15 op 		| TPORT TNUM		{ conf.port = $2; }
 72 5bc3c98e 2021-01-15 op 		| TPROTOCOLS TSTRING {
 73 5bc3c98e 2021-01-15 op 			if (tls_config_parse_protocols(&conf.protos, $2) == -1)
 74 5bc3c98e 2021-01-15 op 				errx(1, "invalid protocols string \"%s\"", $2);
 75 5bc3c98e 2021-01-15 op 		}
 76 b2a6b613 2021-01-21 op 		| TMIME TSTRING TSTRING	{ add_mime(&conf.mime, $2, $3); }
 77 ae08ec7d 2021-01-25 op 		| TCHROOT TSTRING	{ conf.chroot = $2; }
 78 ae08ec7d 2021-01-25 op 		| TUSER TSTRING		{ conf.user = $2; }
 79 15902770 2021-01-15 op 		;
 80 15902770 2021-01-15 op 
 81 15902770 2021-01-15 op vhosts		: /* empty */
 82 15902770 2021-01-15 op 		| vhosts vhost
 83 15902770 2021-01-15 op 		;
 84 15902770 2021-01-15 op 
 85 c8b74339 2021-01-24 op vhost		: TSERVER TSTRING '{' servopts locations '}' {
 86 c8b74339 2021-01-24 op 			host->locations[0].match = (char*)"*";
 87 15902770 2021-01-15 op 			host->domain = $2;
 88 15902770 2021-01-15 op 
 89 cbeee4ca 2021-01-28 op 			if (strstr($2, "xn--") != NULL) {
 90 cbeee4ca 2021-01-28 op 				warnx("%s:%d \"%s\" looks like punycode: "
 91 415ac7a2 2021-01-28 op 				    "you should use the decoded hostname.",
 92 415ac7a2 2021-01-28 op 				    config_path, yylineno, $2);
 93 cbeee4ca 2021-01-28 op 			}
 94 cbeee4ca 2021-01-28 op 
 95 15902770 2021-01-15 op 			if (host->cert == NULL || host->key == NULL ||
 96 15902770 2021-01-15 op 			    host->dir == NULL)
 97 15902770 2021-01-15 op 				errx(1, "invalid vhost definition: %s", $2);
 98 c8b74339 2021-01-24 op 
 99 15902770 2021-01-15 op 			if (++ihost == HOSTSLEN)
100 15902770 2021-01-15 op 				errx(1, "too much vhosts defined");
101 c8b74339 2021-01-24 op 
102 c8b74339 2021-01-24 op 			host++;
103 c8b74339 2021-01-24 op 			loc = &host->locations[0];
104 c8b74339 2021-01-24 op 			iloc = 0;
105 15902770 2021-01-15 op 		}
106 15902770 2021-01-15 op 		| error '}'		{ yyerror("error in server directive"); }
107 15902770 2021-01-15 op 		;
108 15902770 2021-01-15 op 
109 15902770 2021-01-15 op servopts	: /* empty */
110 15902770 2021-01-15 op 		| servopts servopt
111 15902770 2021-01-15 op 		;
112 15902770 2021-01-15 op 
113 15902770 2021-01-15 op servopt		: TCERT TSTRING		{ host->cert = $2; }
114 15902770 2021-01-15 op 		| TKEY TSTRING		{ host->key = $2; }
115 15902770 2021-01-15 op 		| TROOT TSTRING		{ host->dir = $2; }
116 15902770 2021-01-15 op 		| TCGI TSTRING		{
117 15902770 2021-01-15 op 			host->cgi = $2;
118 15902770 2021-01-15 op 			/* drop the starting '/', if any */
119 15902770 2021-01-15 op 			if (*host->cgi == '/')
120 15902770 2021-01-15 op 				host->cgi++;
121 05c23a54 2021-01-19 op 		}
122 c8b74339 2021-01-24 op 		| locopt
123 c8b74339 2021-01-24 op 		;
124 c8b74339 2021-01-24 op 
125 c8b74339 2021-01-24 op locations	: /* empty */
126 c8b74339 2021-01-24 op 		| locations location
127 c8b74339 2021-01-24 op 		;
128 c8b74339 2021-01-24 op 
129 c8b74339 2021-01-24 op location	: TLOCATION TSTRING '{' locopts '}' {
130 c8b74339 2021-01-24 op 			loc->match = $2;
131 c8b74339 2021-01-24 op 			if (++iloc == LOCLEN)
132 c8b74339 2021-01-24 op 				errx(1, "too much location rules defined");
133 c8b74339 2021-01-24 op 			loc++;
134 6119e13e 2021-01-19 op 		}
135 c8b74339 2021-01-24 op 		| error '}'
136 c8b74339 2021-01-24 op 		;
137 c8b74339 2021-01-24 op 
138 c8b74339 2021-01-24 op locopts		: /* empty */
139 c8b74339 2021-01-24 op 		| locopts locopt
140 c8b74339 2021-01-24 op 		;
141 c8b74339 2021-01-24 op 
142 c8b74339 2021-01-24 op locopt		: TDEFAULT TTYPE TSTRING {
143 fe5967cd 2021-01-27 op 			if (loc->default_mime != NULL)
144 fe5967cd 2021-01-27 op 				yyerror("`default type' specified more than once");
145 c8b74339 2021-01-24 op 			loc->default_mime = $3;
146 c8b74339 2021-01-24 op 		}
147 05c23a54 2021-01-19 op 		| TLANG TSTRING {
148 fe5967cd 2021-01-27 op 			if (loc->lang != NULL)
149 fe5967cd 2021-01-27 op 				yyerror("`lang' specified more than once");
150 c8b74339 2021-01-24 op 			loc->lang = $2;
151 05c23a54 2021-01-19 op 		}
152 e7a2a99b 2021-01-24 op 		| TINDEX TSTRING {
153 fe5967cd 2021-01-27 op 			if (loc->index != NULL)
154 fe5967cd 2021-01-27 op 				yyerror("`index' specified more than once");
155 c8b74339 2021-01-24 op 			loc->index = $2;
156 e7a2a99b 2021-01-24 op 		}
157 252908e6 2021-01-24 op 		| TAUTO TINDEX TBOOL	{ loc->auto_index = $3 ? 1 : -1; }
158 15902770 2021-01-15 op 		;
159 13ed2fb6 2021-01-27 op 
160 13ed2fb6 2021-01-27 op %%
161 13ed2fb6 2021-01-27 op 
162 13ed2fb6 2021-01-27 op void
163 13ed2fb6 2021-01-27 op yyerror(const char *msg)
164 13ed2fb6 2021-01-27 op {
165 13ed2fb6 2021-01-27 op 	goterror = 1;
166 13ed2fb6 2021-01-27 op 	fprintf(stderr, "%s:%d: %s\n", config_path, yylineno, msg);
167 13ed2fb6 2021-01-27 op }
168 13ed2fb6 2021-01-27 op 
169 13ed2fb6 2021-01-27 op int
170 13ed2fb6 2021-01-27 op parse_portno(const char *p)
171 13ed2fb6 2021-01-27 op {
172 13ed2fb6 2021-01-27 op 	const char *errstr;
173 13ed2fb6 2021-01-27 op 	int n;
174 13ed2fb6 2021-01-27 op 
175 13ed2fb6 2021-01-27 op 	n = strtonum(p, 0, UINT16_MAX, &errstr);
176 13ed2fb6 2021-01-27 op 	if (errstr != NULL)
177 13ed2fb6 2021-01-27 op 		errx(1, "port number is %s: %s", errstr, p);
178 13ed2fb6 2021-01-27 op 	return n;
179 13ed2fb6 2021-01-27 op }
180 13ed2fb6 2021-01-27 op 
181 13ed2fb6 2021-01-27 op void
182 13ed2fb6 2021-01-27 op parse_conf(const char *path)
183 13ed2fb6 2021-01-27 op {
184 13ed2fb6 2021-01-27 op 	config_path = path;
185 13ed2fb6 2021-01-27 op 	if ((yyin = fopen(path, "r")) == NULL)
186 13ed2fb6 2021-01-27 op 		fatal("cannot open config %s", path);
187 13ed2fb6 2021-01-27 op 	yyparse();
188 13ed2fb6 2021-01-27 op 	fclose(yyin);
189 13ed2fb6 2021-01-27 op 
190 13ed2fb6 2021-01-27 op 	if (goterror)
191 13ed2fb6 2021-01-27 op 		exit(1);
192 13ed2fb6 2021-01-27 op }