php-src/main/configuration-parser.y
1999-06-19 13:18:48 +00:00

448 lines
11 KiB
Plaintext

%{
/*
+----------------------------------------------------------------------+
| PHP HTML Embedded Scripting Language Version 3.0 |
+----------------------------------------------------------------------+
| Copyright (c) 1997,1998 PHP Development Team (See Credits file) |
+----------------------------------------------------------------------+
| This program is free software; you can redistribute it and/or modify |
| it under the terms of one of the following licenses: |
| |
| A) the GNU General Public License as published by the Free Software |
| Foundation; either version 2 of the License, or (at your option) |
| any later version. |
| |
| B) the PHP License as published by the PHP Development Team and |
| included in the distribution in the file: LICENSE |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of both licenses referred to here. |
| If you did not, or have any questions about PHP licensing, please |
| contact core@php.net. |
+----------------------------------------------------------------------+
| Authors: Zeev Suraski <zeev@zend.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#define DEBUG_CFG_PARSER 1
#include "php.h"
#include "php_globals.h"
#include "php_ini.h"
#include "ext/standard/dl.h"
#include "ext/standard/file.h"
#include "ext/standard/php3_browscap.h"
#include "zend_extensions.h"
#undef YYPARSE_PARAM
#undef YYLEX_PARAM
#if WIN32
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <winbase.h>
#include "win32/wfile.h"
#endif
#undef YYSTYPE
#define YYSTYPE pval
#define PARSING_MODE_CFG 0
#define PARSING_MODE_BROWSCAP 1
static HashTable configuration_hash;
#ifndef THREAD_SAFE
extern HashTable browser_hash;
PHPAPI extern char *php3_ini_path;
#endif
static HashTable *active__php3_hash_table;
static pval *current_section;
static char *currently_parsed_filename;
static int parsing_mode;
pval yylval;
extern int cfglex(pval *cfglval);
extern FILE *cfgin;
extern int cfglineno;
extern void init_cfg_scanner(void);
pval *cfg_get_entry(char *name, uint name_length)
{
pval *tmp;
if (_php3_hash_find(&configuration_hash, name, name_length, (void **) &tmp)==SUCCESS) {
return tmp;
} else {
return NULL;
}
}
PHPAPI int cfg_get_long(char *varname,long *result)
{
pval *tmp,var;
if (_php3_hash_find(&configuration_hash,varname,strlen(varname)+1,(void **) &tmp)==FAILURE) {
*result=(long)NULL;
return FAILURE;
}
var = *tmp;
pval_copy_constructor(&var);
convert_to_long(&var);
*result = var.value.lval;
return SUCCESS;
}
PHPAPI int cfg_get_double(char *varname,double *result)
{
pval *tmp,var;
if (_php3_hash_find(&configuration_hash,varname,strlen(varname)+1,(void **) &tmp)==FAILURE) {
*result=(double)0;
return FAILURE;
}
var = *tmp;
pval_copy_constructor(&var);
convert_to_double(&var);
*result = var.value.dval;
return SUCCESS;
}
PHPAPI int cfg_get_string(char *varname, char **result)
{
pval *tmp;
if (_php3_hash_find(&configuration_hash,varname,strlen(varname)+1,(void **) &tmp)==FAILURE) {
*result=NULL;
return FAILURE;
}
*result = tmp->value.str.val;
return SUCCESS;
}
static void yyerror(char *str)
{
fprintf(stderr,"PHP: Error parsing %s on line %d\n",currently_parsed_filename,cfglineno);
}
static void pvalue_config_destructor(pval *pvalue)
{
if (pvalue->type == IS_STRING && pvalue->value.str.val != empty_string) {
free(pvalue->value.str.val);
}
}
static void pvalue_browscap_destructor(pval *pvalue)
{
if (pvalue->type == IS_OBJECT || pvalue->type == IS_ARRAY) {
_php3_hash_destroy(pvalue->value.ht);
free(pvalue->value.ht);
}
}
int php3_init_config(void)
{
PLS_FETCH();
if (_php3_hash_init(&configuration_hash, 0, NULL, (void (*)(void *))pvalue_config_destructor, 1)==FAILURE) {
return FAILURE;
}
#if USE_CONFIG_FILE
{
char *env_location,*default_location,*php_ini_path;
int safe_mode_state = PG(safe_mode);
char *open_basedir = PG(open_basedir);
char *opened_path;
int free_default_location=0;
env_location = getenv("PHPRC");
if (!env_location) {
env_location="";
}
#if WIN32|WINNT
{
if (php3_ini_path) {
default_location = php3_ini_path;
} else {
default_location = (char *) malloc(512);
if (!GetWindowsDirectory(default_location,255)) {
default_location[0]=0;
}
free_default_location=1;
}
}
#else
if (!php3_ini_path) {
default_location = CONFIGURATION_FILE_PATH;
} else {
default_location = php3_ini_path;
}
#endif
/* build a path */
php_ini_path = (char *) malloc(sizeof(".")+strlen(env_location)+strlen(default_location)+2+1);
if (!php3_ini_path) {
#if WIN32|WINNT
sprintf(php_ini_path,".;%s;%s",env_location,default_location);
#else
sprintf(php_ini_path,".:%s:%s",env_location,default_location);
#endif
} else {
/* if path was set via -c flag, only look there */
strcpy(php_ini_path,default_location);
}
PG(safe_mode) = 0;
PG(open_basedir) = NULL;
cfgin = php3_fopen_with_path("php.ini","r",php_ini_path,&opened_path);
free(php_ini_path);
if (free_default_location) {
free(default_location);
}
PG(safe_mode) = safe_mode_state;
PG(open_basedir) = open_basedir;
if (!cfgin) {
# if WIN32|WINNT
return FAILURE;
# else
return SUCCESS; /* having no configuration file is ok */
# endif
}
if (opened_path) {
pval tmp;
tmp.value.str.val = opened_path;
tmp.value.str.len = strlen(opened_path);
tmp.type = IS_STRING;
_php3_hash_update(&configuration_hash,"cfg_file_path",sizeof("cfg_file_path"),(void *) &tmp,sizeof(pval),NULL);
#if 0
php3_printf("INI file opened at '%s'\n",opened_path);
#endif
}
init_cfg_scanner();
active__php3_hash_table = &configuration_hash;
parsing_mode = PARSING_MODE_CFG;
currently_parsed_filename = "php.ini";
yyparse();
fclose(cfgin);
}
#endif
return SUCCESS;
}
int php3_minit_browscap(INIT_FUNC_ARGS)
{
char *browscap = INI_STR("browscap");
if (browscap) {
if (_php3_hash_init(&browser_hash, 0, NULL, (void (*)(void *))pvalue_browscap_destructor, 1)==FAILURE) {
return FAILURE;
}
cfgin = fopen(browscap, "r");
if (!cfgin) {
php3_error(E_WARNING,"Cannot open '%s' for reading", browscap);
return FAILURE;
}
init_cfg_scanner();
active__php3_hash_table = &browser_hash;
parsing_mode = PARSING_MODE_BROWSCAP;
currently_parsed_filename = browscap;
yyparse();
fclose(cfgin);
}
return SUCCESS;
}
int php3_shutdown_config(void)
{
_php3_hash_destroy(&configuration_hash);
return SUCCESS;
}
int php3_mshutdown_browscap(SHUTDOWN_FUNC_ARGS)
{
if (INI_STR("browscap")) {
_php3_hash_destroy(&browser_hash);
}
return SUCCESS;
}
static void convert_browscap_pattern(pval *pattern)
{
register int i,j;
char *t;
for (i=0; i<pattern->value.str.len; i++) {
if (pattern->value.str.val[i]=='*' || pattern->value.str.val[i]=='?') {
break;
}
}
if (i==pattern->value.str.len) { /* no wildcards */
return;
}
t = (char *) malloc(pattern->value.str.len*2);
for (i=0,j=0; i<pattern->value.str.len; i++,j++) {
switch (pattern->value.str.val[i]) {
case '?':
t[j] = '.';
break;
case '*':
t[j++] = '.';
t[j] = '*';
break;
case '.':
t[j++] = '\\';
t[j] = '.';
break;
default:
t[j] = pattern->value.str.val[i];
break;
}
}
t[j]=0;
free(pattern->value.str.val);
pattern->value.str.val = t;
pattern->value.str.len = j;
return;
}
%}
%pure_parser
%token TC_STRING
%token TC_ENCAPSULATED_STRING
%token SECTION
%token CFG_TRUE
%token CFG_FALSE
%token EXTENSION
%token T_ZEND_EXTENSION
%token T_ZEND_EXTENSION_TS
%token T_ZEND_EXTENSION_DEBUG
%token T_ZEND_EXTENSION_DEBUG_TS
%%
statement_list:
statement_list statement
| /* empty */
;
statement:
string '=' string_or_value {
#if 0
printf("'%s' = '%s'\n",$1.value.str.val,$3.value.str.val);
#endif
$3.type = IS_STRING;
if (parsing_mode==PARSING_MODE_CFG) {
_php3_hash_update(active__php3_hash_table, $1.value.str.val, $1.value.str.len+1, &$3, sizeof(pval), NULL);
} else if (parsing_mode==PARSING_MODE_BROWSCAP) {
php3_str_tolower($1.value.str.val,$1.value.str.len);
_php3_hash_update(current_section->value.ht, $1.value.str.val, $1.value.str.len+1, &$3, sizeof(pval), NULL);
}
free($1.value.str.val);
}
| string { free($1.value.str.val); }
| EXTENSION '=' string {
pval dummy;
#if 0
printf("Loading '%s'\n",$3.value.str.val);
#endif
php3_dl(&$3,MODULE_PERSISTENT,&dummy);
}
| T_ZEND_EXTENSION '=' string {
#if !defined(ZTS) && !ZEND_DEBUG
zend_load_extension($3.value.str.val);
#endif
free($3.value.str.val);
}
| T_ZEND_EXTENSION_TS '=' string {
#if defined(ZTS) && !ZEND_DEBUG
zend_load_extension($3.value.str.val);
#endif
free($3.value.str.val);
}
| T_ZEND_EXTENSION_DEBUG '=' string {
#if !defined(ZTS) && ZEND_DEBUG
zend_load_extension($3.value.str.val);
#endif
free($3.value.str.val);
}
| T_ZEND_EXTENSION_DEBUG_TS '=' string {
#if defined(ZTS) && ZEND_DEBUG
zend_load_extension($3.value.str.val);
#endif
free($3.value.str.val);
}
| SECTION {
if (parsing_mode==PARSING_MODE_BROWSCAP) {
pval tmp;
/*printf("'%s' (%d)\n",$1.value.str.val,$1.value.str.len+1);*/
tmp.value.ht = (HashTable *) malloc(sizeof(HashTable));
_php3_hash_init(tmp.value.ht, 0, NULL, (void (*)(void *))pvalue_config_destructor, 1);
tmp.type = IS_OBJECT;
_php3_hash_update(active__php3_hash_table, $1.value.str.val, $1.value.str.len+1, (void *) &tmp, sizeof(pval), (void **) &current_section);
tmp.value.str.val = php3_strndup($1.value.str.val,$1.value.str.len);
tmp.value.str.len = $1.value.str.len;
tmp.type = IS_STRING;
convert_browscap_pattern(&tmp);
_php3_hash_update(current_section->value.ht,"browser_name_pattern",sizeof("browser_name_pattern"),(void *) &tmp, sizeof(pval), NULL);
}
free($1.value.str.val);
}
| '\n'
;
string:
TC_STRING { $$ = $1; }
| TC_ENCAPSULATED_STRING { $$ = $1; }
;
string_or_value:
string { $$ = $1; }
| CFG_TRUE { $$ = $1; }
| CFG_FALSE { $$ = $1; }
| '\n' { $$.value.str.val = strdup(""); $$.value.str.len=0; $$.type = IS_STRING; }
;
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
*/