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php-src/Zend/zend_ini_parser.y
Anatol Belski 65fce7f950 Fixed bug #55541 errors spawn MessageBox, which blocks test automation 
With that, also fixed bug #68297 (Application Popup provides too few
information) as a better error message is provided to the event log.

In the second case, the condition for display_startup_error was removed. The
condition was added as a fix for bug #30760 which was preventing the
MessageBox to appear. When display_startup_error=on, the error will be seen
on the console. But when running under a webserver it'll probably get lost,
so we need to log it other way into the event log (would be done automatically
when message box was used, but that would eventually cause issues of blocked
execution).

Generally speaking - any MessageBox or other graphical element is a potential
issue and that was repeatedly reported. Graphical elements shouldn't be used
in the core. Even being a rare one it can cause a bad situation where the
server is blocked. Yet some places have to cleaned up.
2014-12-03 16:33:05 +01:00

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%{
/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2014 Zend Technologies Ltd. (http://www.zend.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 2.00 of the Zend license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.zend.com/license/2_00.txt. |
| If you did not receive a copy of the Zend license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@zend.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Zeev Suraski <zeev@zend.com> |
| Jani Taskinen <jani@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#define DEBUG_CFG_PARSER 0
#include "zend.h"
#include "zend_API.h"
#include "zend_ini.h"
#include "zend_constants.h"
#include "zend_ini_scanner.h"
#include "zend_extensions.h"
#ifdef PHP_WIN32
#include "win32/syslog.h"
#endif
#define YYERROR_VERBOSE
#define YYSTYPE zval
#ifdef ZTS
#define YYPARSE_PARAM tsrm_ls
#define YYLEX_PARAM tsrm_ls
int ini_parse(void *arg);
#else
int ini_parse(void);
#endif
#define ZEND_INI_PARSER_CB (CG(ini_parser_param))->ini_parser_cb
#define ZEND_INI_PARSER_ARG (CG(ini_parser_param))->arg
/* {{{ zend_ini_do_op()
*/
static void zend_ini_do_op(char type, zval *result, zval *op1, zval *op2)
{
int i_result;
int i_op1, i_op2;
char str_result[MAX_LENGTH_OF_LONG];
i_op1 = atoi(Z_STRVAL_P(op1));
free(Z_STRVAL_P(op1));
if (op2) {
i_op2 = atoi(Z_STRVAL_P(op2));
free(Z_STRVAL_P(op2));
} else {
i_op2 = 0;
}
switch (type) {
case '|':
i_result = i_op1 | i_op2;
break;
case '&':
i_result = i_op1 & i_op2;
break;
case '^':
i_result = i_op1 ^ i_op2;
break;
case '~':
i_result = ~i_op1;
break;
case '!':
i_result = !i_op1;
break;
default:
i_result = 0;
break;
}
Z_STRLEN_P(result) = zend_sprintf(str_result, "%d", i_result);
Z_STRVAL_P(result) = (char *) malloc(Z_STRLEN_P(result)+1);
memcpy(Z_STRVAL_P(result), str_result, Z_STRLEN_P(result));
Z_STRVAL_P(result)[Z_STRLEN_P(result)] = 0;
Z_TYPE_P(result) = IS_STRING;
}
/* }}} */
/* {{{ zend_ini_init_string()
*/
static void zend_ini_init_string(zval *result)
{
Z_STRVAL_P(result) = malloc(1);
Z_STRVAL_P(result)[0] = 0;
Z_STRLEN_P(result) = 0;
Z_TYPE_P(result) = IS_STRING;
}
/* }}} */
/* {{{ zend_ini_add_string()
*/
static void zend_ini_add_string(zval *result, zval *op1, zval *op2)
{
int length = Z_STRLEN_P(op1) + Z_STRLEN_P(op2);
Z_STRVAL_P(result) = (char *) realloc(Z_STRVAL_P(op1), length+1);
memcpy(Z_STRVAL_P(result)+Z_STRLEN_P(op1), Z_STRVAL_P(op2), Z_STRLEN_P(op2));
Z_STRVAL_P(result)[length] = 0;
Z_STRLEN_P(result) = length;
Z_TYPE_P(result) = IS_STRING;
}
/* }}} */
/* {{{ zend_ini_get_constant()
*/
static void zend_ini_get_constant(zval *result, zval *name TSRMLS_DC)
{
zval z_constant;
/* If name contains ':' it is not a constant. Bug #26893. */
if (!memchr(Z_STRVAL_P(name), ':', Z_STRLEN_P(name))
&& zend_get_constant(Z_STRVAL_P(name), Z_STRLEN_P(name), &z_constant TSRMLS_CC)) {
/* z_constant is emalloc()'d */
convert_to_string(&z_constant);
Z_STRVAL_P(result) = zend_strndup(Z_STRVAL(z_constant), Z_STRLEN(z_constant));
Z_STRLEN_P(result) = Z_STRLEN(z_constant);
Z_TYPE_P(result) = Z_TYPE(z_constant);
zval_dtor(&z_constant);
free(Z_STRVAL_P(name));
} else {
*result = *name;
}
}
/* }}} */
/* {{{ zend_ini_get_var()
*/
static void zend_ini_get_var(zval *result, zval *name TSRMLS_DC)
{
zval curval;
char *envvar;
/* Fetch configuration option value */
if (zend_get_configuration_directive(Z_STRVAL_P(name), Z_STRLEN_P(name)+1, &curval) == SUCCESS) {
Z_STRVAL_P(result) = zend_strndup(Z_STRVAL(curval), Z_STRLEN(curval));
Z_STRLEN_P(result) = Z_STRLEN(curval);
/* ..or if not found, try ENV */
} else if ((envvar = zend_getenv(Z_STRVAL_P(name), Z_STRLEN_P(name) TSRMLS_CC)) != NULL ||
(envvar = getenv(Z_STRVAL_P(name))) != NULL) {
Z_STRVAL_P(result) = strdup(envvar);
Z_STRLEN_P(result) = strlen(envvar);
} else {
zend_ini_init_string(result);
}
}
/* }}} */
/* {{{ ini_error()
*/
static void ini_error(char *msg)
{
char *error_buf;
int error_buf_len;
char *currently_parsed_filename;
TSRMLS_FETCH();
currently_parsed_filename = zend_ini_scanner_get_filename(TSRMLS_C);
if (currently_parsed_filename) {
error_buf_len = 128 + strlen(msg) + strlen(currently_parsed_filename); /* should be more than enough */
error_buf = (char *) emalloc(error_buf_len);
sprintf(error_buf, "%s in %s on line %d\n", msg, currently_parsed_filename, zend_ini_scanner_get_lineno(TSRMLS_C));
} else {
error_buf = estrdup("Invalid configuration directive\n");
}
if (CG(ini_parser_unbuffered_errors)) {
#ifdef PHP_WIN32
syslog(LOG_ALERT, "PHP: %s (%s)", error_buf, GetCommandLine());
#endif
fprintf(stderr, "PHP: %s", error_buf);
} else {
zend_error(E_WARNING, "%s", error_buf);
}
efree(error_buf);
}
/* }}} */
/* {{{ zend_parse_ini_file()
*/
ZEND_API int zend_parse_ini_file(zend_file_handle *fh, zend_bool unbuffered_errors, int scanner_mode, zend_ini_parser_cb_t ini_parser_cb, void *arg TSRMLS_DC)
{
int retval;
zend_ini_parser_param ini_parser_param;
ini_parser_param.ini_parser_cb = ini_parser_cb;
ini_parser_param.arg = arg;
CG(ini_parser_param) = &ini_parser_param;
if (zend_ini_open_file_for_scanning(fh, scanner_mode TSRMLS_CC) == FAILURE) {
return FAILURE;
}
CG(ini_parser_unbuffered_errors) = unbuffered_errors;
retval = ini_parse(TSRMLS_C);
zend_file_handle_dtor(fh TSRMLS_CC);
shutdown_ini_scanner(TSRMLS_C);
if (retval == 0) {
return SUCCESS;
} else {
return FAILURE;
}
}
/* }}} */
/* {{{ zend_parse_ini_string()
*/
ZEND_API int zend_parse_ini_string(char *str, zend_bool unbuffered_errors, int scanner_mode, zend_ini_parser_cb_t ini_parser_cb, void *arg TSRMLS_DC)
{
int retval;
zend_ini_parser_param ini_parser_param;
ini_parser_param.ini_parser_cb = ini_parser_cb;
ini_parser_param.arg = arg;
CG(ini_parser_param) = &ini_parser_param;
if (zend_ini_prepare_string_for_scanning(str, scanner_mode TSRMLS_CC) == FAILURE) {
return FAILURE;
}
CG(ini_parser_unbuffered_errors) = unbuffered_errors;
retval = ini_parse(TSRMLS_C);
shutdown_ini_scanner(TSRMLS_C);
if (retval == 0) {
return SUCCESS;
} else {
return FAILURE;
}
}
/* }}} */
%}
%expect 0
%pure_parser
%token TC_SECTION
%token TC_RAW
%token TC_CONSTANT
%token TC_NUMBER
%token TC_STRING
%token TC_WHITESPACE
%token TC_LABEL
%token TC_OFFSET
%token TC_DOLLAR_CURLY
%token TC_VARNAME
%token TC_QUOTED_STRING
%token BOOL_TRUE
%token BOOL_FALSE
%token END_OF_LINE
%token '=' ':' ',' '.' '"' '\'' '^' '+' '-' '/' '*' '%' '$' '~' '<' '>' '?' '@' '{' '}'
%left '|' '&' '^'
%right '~' '!'
%%
statement_list:
statement_list statement
| /* empty */
;
statement:
TC_SECTION section_string_or_value ']' {
#if DEBUG_CFG_PARSER
printf("SECTION: [%s]\n", Z_STRVAL($2));
#endif
ZEND_INI_PARSER_CB(&$2, NULL, NULL, ZEND_INI_PARSER_SECTION, ZEND_INI_PARSER_ARG TSRMLS_CC);
free(Z_STRVAL($2));
}
| TC_LABEL '=' string_or_value {
#if DEBUG_CFG_PARSER
printf("NORMAL: '%s' = '%s'\n", Z_STRVAL($1), Z_STRVAL($3));
#endif
ZEND_INI_PARSER_CB(&$1, &$3, NULL, ZEND_INI_PARSER_ENTRY, ZEND_INI_PARSER_ARG TSRMLS_CC);
free(Z_STRVAL($1));
free(Z_STRVAL($3));
}
| TC_OFFSET option_offset ']' '=' string_or_value {
#if DEBUG_CFG_PARSER
printf("OFFSET: '%s'[%s] = '%s'\n", Z_STRVAL($1), Z_STRVAL($2), Z_STRVAL($5));
#endif
ZEND_INI_PARSER_CB(&$1, &$5, &$2, ZEND_INI_PARSER_POP_ENTRY, ZEND_INI_PARSER_ARG TSRMLS_CC);
free(Z_STRVAL($1));
free(Z_STRVAL($2));
free(Z_STRVAL($5));
}
| TC_LABEL { ZEND_INI_PARSER_CB(&$1, NULL, NULL, ZEND_INI_PARSER_ENTRY, ZEND_INI_PARSER_ARG TSRMLS_CC); free(Z_STRVAL($1)); }
| END_OF_LINE
;
section_string_or_value:
var_string_list_section { $$ = $1; }
| /* empty */ { zend_ini_init_string(&$$); }
;
string_or_value:
expr { $$ = $1; }
| BOOL_TRUE { $$ = $1; }
| BOOL_FALSE { $$ = $1; }
| END_OF_LINE { zend_ini_init_string(&$$); }
;
option_offset:
var_string_list { $$ = $1; }
| /* empty */ { zend_ini_init_string(&$$); }
;
encapsed_list:
encapsed_list cfg_var_ref { zend_ini_add_string(&$$, &$1, &$2); free(Z_STRVAL($2)); }
| encapsed_list TC_QUOTED_STRING { zend_ini_add_string(&$$, &$1, &$2); free(Z_STRVAL($2)); }
| /* empty */ { zend_ini_init_string(&$$); }
;
var_string_list_section:
cfg_var_ref { $$ = $1; }
| constant_literal { $$ = $1; }
| '"' encapsed_list '"' { $$ = $2; }
| var_string_list_section cfg_var_ref { zend_ini_add_string(&$$, &$1, &$2); free(Z_STRVAL($2)); }
| var_string_list_section constant_literal { zend_ini_add_string(&$$, &$1, &$2); free(Z_STRVAL($2)); }
| var_string_list_section '"' encapsed_list '"' { zend_ini_add_string(&$$, &$1, &$3); free(Z_STRVAL($3)); }
;
var_string_list:
cfg_var_ref { $$ = $1; }
| constant_string { $$ = $1; }
| '"' encapsed_list '"' { $$ = $2; }
| var_string_list cfg_var_ref { zend_ini_add_string(&$$, &$1, &$2); free(Z_STRVAL($2)); }
| var_string_list constant_string { zend_ini_add_string(&$$, &$1, &$2); free(Z_STRVAL($2)); }
| var_string_list '"' encapsed_list '"' { zend_ini_add_string(&$$, &$1, &$3); free(Z_STRVAL($3)); }
;
expr:
var_string_list { $$ = $1; }
| expr '|' expr { zend_ini_do_op('|', &$$, &$1, &$3); }
| expr '&' expr { zend_ini_do_op('&', &$$, &$1, &$3); }
| expr '^' expr { zend_ini_do_op('^', &$$, &$1, &$3); }
| '~' expr { zend_ini_do_op('~', &$$, &$2, NULL); }
| '!' expr { zend_ini_do_op('!', &$$, &$2, NULL); }
| '(' expr ')' { $$ = $2; }
;
cfg_var_ref:
TC_DOLLAR_CURLY TC_VARNAME '}' { zend_ini_get_var(&$$, &$2 TSRMLS_CC); free(Z_STRVAL($2)); }
;
constant_literal:
TC_CONSTANT { $$ = $1; }
| TC_RAW { $$ = $1; /*printf("TC_RAW: '%s'\n", Z_STRVAL($1));*/ }
| TC_NUMBER { $$ = $1; /*printf("TC_NUMBER: '%s'\n", Z_STRVAL($1));*/ }
| TC_STRING { $$ = $1; /*printf("TC_STRING: '%s'\n", Z_STRVAL($1));*/ }
| TC_WHITESPACE { $$ = $1; /*printf("TC_WHITESPACE: '%s'\n", Z_STRVAL($1));*/ }
;
constant_string:
TC_CONSTANT { zend_ini_get_constant(&$$, &$1 TSRMLS_CC); }
| TC_RAW { $$ = $1; /*printf("TC_RAW: '%s'\n", Z_STRVAL($1));*/ }
| TC_NUMBER { $$ = $1; /*printf("TC_NUMBER: '%s'\n", Z_STRVAL($1));*/ }
| TC_STRING { $$ = $1; /*printf("TC_STRING: '%s'\n", Z_STRVAL($1));*/ }
| TC_WHITESPACE { $$ = $1; /*printf("TC_WHITESPACE: '%s'\n", Z_STRVAL($1));*/ }
;
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
*/
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