mirror of
https://github.com/php/php-src.git
synced 2024-11-28 04:14:26 +08:00
509 lines
12 KiB
Plaintext
509 lines
12 KiB
Plaintext
%{
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/*
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+----------------------------------------------------------------------+
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| PHP version 4.0 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997, 1998, 1999, 2000 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.0 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available at through the world-wide-web at |
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| http://www.php.net/license/2_0.txt. |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Zeev Suraski <zeev@zend.com> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#define DEBUG_CFG_PARSER 0
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#include "php.h"
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#include "php_globals.h"
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#include "php_ini.h"
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#include "ext/standard/dl.h"
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#include "ext/standard/file.h"
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#include "ext/standard/php_browscap.h"
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#include "zend_extensions.h"
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#if WIN32
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <winbase.h>
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#include "win32/wfile.h"
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#endif
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#define YYSTYPE pval
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#define PARSING_MODE_CFG 0
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#define PARSING_MODE_BROWSCAP 1
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static HashTable configuration_hash;
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#ifndef THREAD_SAFE
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extern HashTable browser_hash;
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PHPAPI extern char *php_ini_path;
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#endif
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static HashTable *activezend_hash_table;
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static pval *current_section;
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static char *currently_parsed_filename;
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static int parsing_mode;
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pval yylval;
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extern int cfglex(pval *cfglval);
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extern FILE *cfgin;
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extern int cfglineno;
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extern void init_cfg_scanner(void);
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pval *cfg_get_entry(char *name, uint name_length)
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{
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pval *tmp;
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if (zend_hash_find(&configuration_hash, name, name_length, (void **) &tmp)==SUCCESS) {
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return tmp;
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} else {
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return NULL;
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}
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}
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PHPAPI int cfg_get_long(char *varname,long *result)
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{
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pval *tmp,var;
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if (zend_hash_find(&configuration_hash,varname,strlen(varname)+1,(void **) &tmp)==FAILURE) {
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*result=(long)NULL;
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return FAILURE;
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}
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var = *tmp;
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pval_copy_constructor(&var);
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convert_to_long(&var);
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*result = var.value.lval;
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return SUCCESS;
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}
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PHPAPI int cfg_get_double(char *varname,double *result)
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{
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pval *tmp,var;
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if (zend_hash_find(&configuration_hash,varname,strlen(varname)+1,(void **) &tmp)==FAILURE) {
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*result=(double)0;
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return FAILURE;
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}
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var = *tmp;
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pval_copy_constructor(&var);
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convert_to_double(&var);
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*result = var.value.dval;
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return SUCCESS;
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}
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PHPAPI int cfg_get_string(char *varname, char **result)
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{
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pval *tmp;
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if (zend_hash_find(&configuration_hash,varname,strlen(varname)+1,(void **) &tmp)==FAILURE) {
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*result=NULL;
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return FAILURE;
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}
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*result = tmp->value.str.val;
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return SUCCESS;
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}
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static void yyerror(char *str)
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{
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fprintf(stderr,"PHP: Error parsing %s on line %d\n",currently_parsed_filename,cfglineno);
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}
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static int pvalue_config_destructor(pval *pvalue)
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{
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if (pvalue->type == IS_STRING && pvalue->value.str.val != empty_string) {
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free(pvalue->value.str.val);
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}
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return 1;
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}
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static int pvalue_browscap_destructor(pval *pvalue)
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{
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if (pvalue->type == IS_OBJECT || pvalue->type == IS_ARRAY) {
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zend_hash_destroy(pvalue->value.ht);
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free(pvalue->value.ht);
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}
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return 1;
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}
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int php_init_config(void)
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{
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PLS_FETCH();
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if (zend_hash_init(&configuration_hash, 0, NULL, (int (*)(void *))pvalue_config_destructor, 1)==FAILURE) {
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return FAILURE;
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}
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#if USE_CONFIG_FILE
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{
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char *env_location,*default_location,*php_ini_search_path;
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int safe_mode_state = PG(safe_mode);
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char *open_basedir = PG(open_basedir);
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char *opened_path;
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int free_default_location=0;
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env_location = getenv("PHPRC");
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if (!env_location) {
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env_location="";
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}
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#if WIN32|WINNT
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{
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if (php_ini_path) {
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default_location = php_ini_path;
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} else {
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default_location = (char *) malloc(512);
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if (!GetWindowsDirectory(default_location,255)) {
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default_location[0]=0;
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}
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free_default_location=1;
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}
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}
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#else
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if (!php_ini_path) {
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default_location = CONFIGURATION_FILE_PATH;
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} else {
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default_location = php_ini_path;
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}
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#endif
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/* build a path */
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php_ini_search_path = (char *) malloc(sizeof(".")+strlen(env_location)+strlen(default_location)+2+1);
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if (!php_ini_path) {
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#if WIN32|WINNT
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sprintf(php_ini_search_path,".;%s;%s",env_location,default_location);
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#else
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sprintf(php_ini_search_path,".:%s:%s",env_location,default_location);
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#endif
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} else {
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/* if path was set via -c flag, only look there */
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strcpy(php_ini_search_path,default_location);
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}
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PG(safe_mode) = 0;
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PG(open_basedir) = NULL;
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cfgin = php_fopen_with_path("php.ini","r",php_ini_search_path,&opened_path);
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free(php_ini_search_path);
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if (free_default_location) {
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free(default_location);
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}
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PG(safe_mode) = safe_mode_state;
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PG(open_basedir) = open_basedir;
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if (!cfgin) {
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# if WIN32|WINNT
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return FAILURE;
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# else
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return SUCCESS; /* having no configuration file is ok */
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# endif
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}
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if (opened_path) {
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pval tmp;
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tmp.value.str.val = opened_path;
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tmp.value.str.len = strlen(opened_path);
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tmp.type = IS_STRING;
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zend_hash_update(&configuration_hash,"cfg_file_path",sizeof("cfg_file_path"),(void *) &tmp,sizeof(pval),NULL);
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#if DEBUG_CFG_PARSER
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php_printf("INI file opened at '%s'\n",opened_path);
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#endif
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}
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init_cfg_scanner();
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activezend_hash_table = &configuration_hash;
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parsing_mode = PARSING_MODE_CFG;
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currently_parsed_filename = "php.ini";
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yyparse();
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fclose(cfgin);
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}
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#endif
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return SUCCESS;
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}
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PHP_MINIT_FUNCTION(browscap)
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{
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char *browscap = INI_STR("browscap");
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if (browscap) {
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if (zend_hash_init(&browser_hash, 0, NULL, (int (*)(void *))pvalue_browscap_destructor, 1)==FAILURE) {
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return FAILURE;
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}
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cfgin = fopen(browscap, "r");
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if (!cfgin) {
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php_error(E_WARNING,"Cannot open '%s' for reading", browscap);
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return FAILURE;
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}
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init_cfg_scanner();
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activezend_hash_table = &browser_hash;
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parsing_mode = PARSING_MODE_BROWSCAP;
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currently_parsed_filename = browscap;
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yyparse();
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fclose(cfgin);
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}
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return SUCCESS;
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}
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int php_shutdown_config(void)
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{
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zend_hash_destroy(&configuration_hash);
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return SUCCESS;
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}
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PHP_MSHUTDOWN_FUNCTION(browscap)
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{
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if (INI_STR("browscap")) {
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zend_hash_destroy(&browser_hash);
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}
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return SUCCESS;
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}
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static void convert_browscap_pattern(pval *pattern)
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{
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register int i,j;
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char *t;
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for (i=0; i<pattern->value.str.len; i++) {
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if (pattern->value.str.val[i]=='*' || pattern->value.str.val[i]=='?') {
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break;
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}
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}
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if (i==pattern->value.str.len) { /* no wildcards */
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return;
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}
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t = (char *) malloc(pattern->value.str.len*2);
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for (i=0,j=0; i<pattern->value.str.len; i++,j++) {
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switch (pattern->value.str.val[i]) {
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case '?':
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t[j] = '.';
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break;
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case '*':
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t[j++] = '.';
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t[j] = '*';
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break;
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case '.':
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t[j++] = '\\';
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t[j] = '.';
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break;
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default:
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t[j] = pattern->value.str.val[i];
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break;
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}
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}
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t[j]=0;
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free(pattern->value.str.val);
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pattern->value.str.val = t;
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pattern->value.str.len = j;
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return;
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}
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void do_cfg_op(char type, zval *result, zval *op1, zval *op2)
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{
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int i_result;
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int i_op1, i_op2;
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char str_result[MAX_LENGTH_OF_LONG];
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i_op1 = atoi(op1->value.str.val);
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free(op1->value.str.val);
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if (op2) {
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i_op2 = atoi(op2->value.str.val);
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free(op2->value.str.val);
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} else {
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i_op2 = 0;
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}
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switch (type) {
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case '|':
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i_result = i_op1 | i_op2;
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break;
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case '&':
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i_result = i_op1 & i_op2;
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break;
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case '~':
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i_result = ~i_op1;
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break;
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default:
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i_result = 0;
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break;
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}
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result->value.str.len = zend_sprintf(str_result, "%d", i_result);
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result->value.str.val = (char *) malloc(result->value.str.len+1);
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memcpy(result->value.str.val, str_result, result->value.str.len);
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result->value.str.val[result->value.str.len] = 0;
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result->type = IS_STRING;
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}
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void do_cfg_get_constant(zval *result, zval *name)
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{
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zval z_constant;
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if (zend_get_constant(name->value.str.val, name->value.str.len, &z_constant)) {
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/* z_constant is emalloc()'d */
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convert_to_string(&z_constant);
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result->value.str.val = zend_strndup(z_constant.value.str.val, z_constant.value.str.len);
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result->value.str.len = z_constant.value.str.len;
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result->type = z_constant.type;
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zval_dtor(&z_constant);
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free(name->value.str.val);
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} else {
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*result = *name;
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}
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}
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%}
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%pure_parser
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%token TC_STRING
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%token TC_ENCAPSULATED_STRING
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%token SECTION
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%token CFG_TRUE
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%token CFG_FALSE
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%token EXTENSION
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%token T_ZEND_EXTENSION
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%token T_ZEND_EXTENSION_TS
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%token T_ZEND_EXTENSION_DEBUG
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%token T_ZEND_EXTENSION_DEBUG_TS
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%left '|' '&'
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%right '~'
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%%
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statement_list:
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statement_list statement
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| /* empty */
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;
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statement:
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TC_STRING '=' string_or_value {
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#if DEBUG_CFG_PARSER
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printf("'%s' = '%s'\n",$1.value.str.val,$3.value.str.val);
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#endif
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$3.type = IS_STRING;
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if (parsing_mode==PARSING_MODE_CFG) {
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zend_hash_update(activezend_hash_table, $1.value.str.val, $1.value.str.len+1, &$3, sizeof(pval), NULL);
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if (activezend_hash_table == &configuration_hash) {
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php_alter_ini_entry($1.value.str.val, $1.value.str.len+1, $3.value.str.val, $3.value.str.len+1, PHP_INI_SYSTEM);
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}
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} else if (parsing_mode==PARSING_MODE_BROWSCAP) {
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zend_str_tolower($1.value.str.val,$1.value.str.len);
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zend_hash_update(current_section->value.ht, $1.value.str.val, $1.value.str.len+1, &$3, sizeof(pval), NULL);
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}
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free($1.value.str.val);
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}
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| TC_STRING { free($1.value.str.val); }
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| EXTENSION '=' string_foo {
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pval dummy;
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#if DEBUG_CFG_PARSER
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printf("Loading '%s'\n",$3.value.str.val);
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#endif
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php_dl(&$3,MODULE_PERSISTENT,&dummy);
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}
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| T_ZEND_EXTENSION '=' string_foo {
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#if !defined(ZTS) && !ZEND_DEBUG
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zend_load_extension($3.value.str.val);
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#endif
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free($3.value.str.val);
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}
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| T_ZEND_EXTENSION_TS '=' string_foo {
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#if defined(ZTS) && !ZEND_DEBUG
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zend_load_extension($3.value.str.val);
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#endif
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free($3.value.str.val);
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}
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| T_ZEND_EXTENSION_DEBUG '=' string_foo {
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#if !defined(ZTS) && ZEND_DEBUG
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zend_load_extension($3.value.str.val);
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#endif
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free($3.value.str.val);
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}
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| T_ZEND_EXTENSION_DEBUG_TS '=' string_foo {
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#if defined(ZTS) && ZEND_DEBUG
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zend_load_extension($3.value.str.val);
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#endif
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free($3.value.str.val);
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}
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| SECTION {
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if (parsing_mode==PARSING_MODE_BROWSCAP) {
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pval tmp;
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/*printf("'%s' (%d)\n",$1.value.str.val,$1.value.str.len+1);*/
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tmp.value.ht = (HashTable *) malloc(sizeof(HashTable));
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zend_hash_init(tmp.value.ht, 0, NULL, (int (*)(void *))pvalue_config_destructor, 1);
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tmp.type = IS_OBJECT;
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zend_hash_update(activezend_hash_table, $1.value.str.val, $1.value.str.len+1, (void *) &tmp, sizeof(pval), (void **) ¤t_section);
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tmp.value.str.val = zend_strndup($1.value.str.val,$1.value.str.len);
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tmp.value.str.len = $1.value.str.len;
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tmp.type = IS_STRING;
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convert_browscap_pattern(&tmp);
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zend_hash_update(current_section->value.ht,"browser_name_pattern",sizeof("browser_name_pattern"),(void *) &tmp, sizeof(pval), NULL);
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}
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free($1.value.str.val);
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}
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| '\n'
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;
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string_foo:
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TC_STRING { $$ = $1; }
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| TC_ENCAPSULATED_STRING { $$ = $1; }
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;
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string_or_value:
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expr { $$ = $1; }
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| TC_ENCAPSULATED_STRING { $$ = $1; }
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| CFG_TRUE { $$ = $1; }
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| CFG_FALSE { $$ = $1; }
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| '\n' { $$.value.str.val = strdup(""); $$.value.str.len=0; $$.type = IS_STRING; }
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;
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expr:
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constant_string { $$ = $1; }
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| expr '|' expr { do_cfg_op('|', &$$, &$1, &$3); }
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| expr '&' expr { do_cfg_op('&', &$$, &$1, &$3); }
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| '~' expr { do_cfg_op('~', &$$, &$2, NULL); }
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| '(' expr ')' { $$ = $2; }
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;
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constant_string:
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TC_STRING { do_cfg_get_constant(&$$, &$1); }
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;
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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*/
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