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|
/* -*- mode: fundamental; indent-tabs-mode: t; -*- */
%{
/*
* Copyright (c) 2021 Omar Polo <op@omarpolo.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <err.h>
#include <stdio.h>
#include "gmid.h"
/*
* #define YYDEBUG 1
* int yydebug = 1;
*/
struct vhost *host = &hosts[0];
size_t ihost = 0;
struct location *loc = &hosts[0].locations[0];
size_t iloc = 0;
int goterror = 0;
const char *config_path;
void yyerror(const char*);
int parse_portno(const char*);
void parse_conf(const char*);
%}
/* for bison: */
/* %define parse.error verbose */
%union {
char *str;
int num;
}
%token TIPV6 TPORT TPROTOCOLS TMIME TDEFAULT TTYPE
%token TCHROOT TUSER TSERVER
%token TLOCATION TCERT TKEY TROOT TCGI TLANG TINDEX TAUTO
%token TERR
%token <str> TSTRING
%token <num> TNUM
%token <num> TBOOL
%%
conf : options vhosts ;
options : /* empty */
| options option
;
option : TIPV6 TBOOL { conf.ipv6 = $2; }
| TPORT TNUM { conf.port = $2; }
| TPROTOCOLS TSTRING {
if (tls_config_parse_protocols(&conf.protos, $2) == -1)
errx(1, "invalid protocols string \"%s\"", $2);
}
| TMIME TSTRING TSTRING { add_mime(&conf.mime, $2, $3); }
| TCHROOT TSTRING { conf.chroot = $2; }
| TUSER TSTRING { conf.user = $2; }
;
vhosts : /* empty */
| vhosts vhost
;
vhost : TSERVER TSTRING '{' servopts locations '}' {
host->locations[0].match = (char*)"*";
host->domain = $2;
if (host->cert == NULL || host->key == NULL ||
host->dir == NULL)
errx(1, "invalid vhost definition: %s", $2);
if (++ihost == HOSTSLEN)
errx(1, "too much vhosts defined");
host++;
loc = &host->locations[0];
iloc = 0;
}
| error '}' { yyerror("error in server directive"); }
;
servopts : /* empty */
| servopts servopt
;
servopt : TCERT TSTRING { host->cert = $2; }
| TKEY TSTRING { host->key = $2; }
| TROOT TSTRING { host->dir = $2; }
| TCGI TSTRING {
host->cgi = $2;
/* drop the starting '/', if any */
if (*host->cgi == '/')
host->cgi++;
}
| locopt
;
locations : /* empty */
| locations location
;
location : TLOCATION TSTRING '{' locopts '}' {
loc->match = $2;
if (++iloc == LOCLEN)
errx(1, "too much location rules defined");
loc++;
}
| error '}'
;
locopts : /* empty */
| locopts locopt
;
locopt : TDEFAULT TTYPE TSTRING {
if (loc->default_mime != NULL)
yyerror("`default type' specified more than once");
loc->default_mime = $3;
}
| TLANG TSTRING {
if (loc->lang != NULL)
yyerror("`lang' specified more than once");
loc->lang = $2;
}
| TINDEX TSTRING {
if (loc->index != NULL)
yyerror("`index' specified more than once");
loc->index = $2;
}
| TAUTO TINDEX TBOOL { loc->auto_index = $3 ? 1 : -1; }
;
%%
void
yyerror(const char *msg)
{
goterror = 1;
fprintf(stderr, "%s:%d: %s\n", config_path, yylineno, msg);
}
int
parse_portno(const char *p)
{
const char *errstr;
int n;
n = strtonum(p, 0, UINT16_MAX, &errstr);
if (errstr != NULL)
errx(1, "port number is %s: %s", errstr, p);
return n;
}
void
parse_conf(const char *path)
{
config_path = path;
if ((yyin = fopen(path, "r")) == NULL)
fatal("cannot open config %s", path);
yyparse();
fclose(yyin);
if (goterror)
exit(1);
}
|
