897 lines
22 KiB
Plaintext
897 lines
22 KiB
Plaintext
%{
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/*
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* Implementation of the Microsoft Installer (msi.dll)
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*
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* Copyright 2003 Mike McCormack for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#define COBJMACROS
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#include "config.h"
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "windef.h"
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#include "winbase.h"
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#include "winuser.h"
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#include "msi.h"
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#include "msiquery.h"
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#include "objbase.h"
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#include "oleauto.h"
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#include "msipriv.h"
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#include "winemsi.h"
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#include "wine/debug.h"
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#include "wine/unicode.h"
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#include "wine/list.h"
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WINE_DEFAULT_DEBUG_CHANNEL(msi);
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typedef struct tag_yyinput
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{
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MSIPACKAGE *package;
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LPCWSTR str;
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INT n;
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MSICONDITION result;
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struct list mem;
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} COND_input;
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struct cond_str {
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LPCWSTR data;
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INT len;
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};
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struct value {
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enum value_type {
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VALUE_INTEGER,
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VALUE_LITERAL,
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VALUE_SYMBOL
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} type;
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union {
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INT integer;
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WCHAR *string;
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} u;
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};
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static LPWSTR COND_GetString( COND_input *info, const struct cond_str *str );
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static LPWSTR COND_GetLiteral( COND_input *info, const struct cond_str *str );
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static int cond_lex( void *COND_lval, COND_input *info);
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static int cond_error( COND_input *info, const char *str);
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static void *cond_alloc( COND_input *cond, unsigned int sz );
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static void *cond_track_mem( COND_input *cond, void *ptr, unsigned int sz );
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static void cond_free( void *ptr );
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static INT compare_int( INT a, INT operator, INT b );
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static INT compare_string( LPCWSTR a, INT operator, LPCWSTR b, BOOL convert );
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static BOOL num_from_prop( LPCWSTR p, INT *val )
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{
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INT ret = 0, sign = 1;
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if (!p)
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return FALSE;
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if (*p == '-')
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{
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sign = -1;
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p++;
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}
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if (!*p)
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return FALSE;
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while (*p)
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{
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if( *p < '0' || *p > '9' )
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return FALSE;
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ret = ret*10 + (*p - '0');
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p++;
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}
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*val = ret*sign;
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return TRUE;
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}
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static void value_free( struct value val )
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{
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if (val.type != VALUE_INTEGER)
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cond_free( val.u.string );
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}
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%}
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%lex-param { COND_input *info }
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%parse-param { COND_input *info }
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%pure-parser
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%union
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{
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struct cond_str str;
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struct value value;
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LPWSTR identifier;
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INT operator;
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BOOL bool;
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}
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%token COND_SPACE COND_EOF
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%token COND_OR COND_AND COND_NOT COND_XOR COND_IMP COND_EQV
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%token COND_LT COND_GT COND_EQ COND_NE COND_GE COND_LE
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%token COND_ILT COND_IGT COND_IEQ COND_INE COND_IGE COND_ILE
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%token COND_LPAR COND_RPAR COND_TILDA COND_SS COND_ISS
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%token COND_ILHS COND_IRHS COND_LHS COND_RHS
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%token COND_PERCENT COND_DOLLARS COND_QUESTION COND_AMPER COND_EXCLAM
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%token <str> COND_IDENT <str> COND_NUMBER <str> COND_LITER
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%nonassoc COND_ERROR COND_EOF
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%type <bool> expression boolean_term boolean_factor
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%type <value> value
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%type <identifier> identifier
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%type <operator> operator
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%%
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condition:
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expression
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{
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COND_input* cond = (COND_input*) info;
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cond->result = $1;
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}
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| /* empty */
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{
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COND_input* cond = (COND_input*) info;
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cond->result = MSICONDITION_NONE;
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}
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;
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expression:
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boolean_term
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{
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$$ = $1;
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}
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| expression COND_OR boolean_term
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{
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$$ = $1 || $3;
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}
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| expression COND_IMP boolean_term
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{
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$$ = !$1 || $3;
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}
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| expression COND_XOR boolean_term
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{
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$$ = ( $1 || $3 ) && !( $1 && $3 );
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}
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| expression COND_EQV boolean_term
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{
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$$ = ( $1 && $3 ) || ( !$1 && !$3 );
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}
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;
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boolean_term:
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boolean_factor
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{
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$$ = $1;
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}
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| boolean_term COND_AND boolean_factor
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{
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$$ = $1 && $3;
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}
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;
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boolean_factor:
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COND_NOT boolean_factor
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{
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$$ = !$2;
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}
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| value
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{
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if ($1.type == VALUE_INTEGER)
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$$ = $1.u.integer ? 1 : 0;
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else
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$$ = $1.u.string && $1.u.string[0];
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value_free( $1 );
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}
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| value operator value
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{
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if ($1.type == VALUE_INTEGER && $3.type == VALUE_INTEGER)
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{
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$$ = compare_int($1.u.integer, $2, $3.u.integer);
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}
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else if ($1.type != VALUE_INTEGER && $3.type != VALUE_INTEGER)
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{
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$$ = compare_string($1.u.string, $2, $3.u.string,
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$1.type == VALUE_SYMBOL || $3.type == VALUE_SYMBOL);
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}
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else if ($1.type == VALUE_LITERAL || $3.type == VALUE_LITERAL)
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{
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$$ = FALSE;
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}
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else if ($1.type == VALUE_SYMBOL) /* symbol operator integer */
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{
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int num;
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if (num_from_prop( $1.u.string, &num ))
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$$ = compare_int( num, $2, $3.u.integer );
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else
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$$ = ($2 == COND_NE || $2 == COND_INE );
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}
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else /* integer operator symbol */
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{
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int num;
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if (num_from_prop( $3.u.string, &num ))
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$$ = compare_int( $1.u.integer, $2, num );
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else
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$$ = ($2 == COND_NE || $2 == COND_INE );
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}
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value_free( $1 );
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value_free( $3 );
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}
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| COND_LPAR expression COND_RPAR
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{
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$$ = $2;
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}
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;
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operator:
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/* common functions */
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COND_EQ { $$ = COND_EQ; }
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| COND_NE { $$ = COND_NE; }
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| COND_LT { $$ = COND_LT; }
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| COND_GT { $$ = COND_GT; }
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| COND_LE { $$ = COND_LE; }
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| COND_GE { $$ = COND_GE; }
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| COND_SS { $$ = COND_SS; }
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| COND_IEQ { $$ = COND_IEQ; }
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| COND_INE { $$ = COND_INE; }
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| COND_ILT { $$ = COND_ILT; }
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| COND_IGT { $$ = COND_IGT; }
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| COND_ILE { $$ = COND_ILE; }
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| COND_IGE { $$ = COND_IGE; }
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| COND_ISS { $$ = COND_ISS; }
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| COND_LHS { $$ = COND_LHS; }
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| COND_RHS { $$ = COND_RHS; }
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| COND_ILHS { $$ = COND_ILHS; }
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| COND_IRHS { $$ = COND_IRHS; }
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;
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value:
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identifier
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{
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COND_input* cond = (COND_input*) info;
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UINT len;
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$$.type = VALUE_SYMBOL;
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$$.u.string = msi_dup_property( cond->package->db, $1 );
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if ($$.u.string)
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{
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len = (lstrlenW($$.u.string) + 1) * sizeof (WCHAR);
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$$.u.string = cond_track_mem( cond, $$.u.string, len );
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}
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cond_free( $1 );
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}
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| COND_PERCENT identifier
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{
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COND_input* cond = (COND_input*) info;
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UINT len = GetEnvironmentVariableW( $2, NULL, 0 );
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$$.type = VALUE_SYMBOL;
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$$.u.string = NULL;
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if (len++)
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{
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$$.u.string = cond_alloc( cond, len*sizeof (WCHAR) );
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if( !$$.u.string )
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YYABORT;
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GetEnvironmentVariableW( $2, $$.u.string, len );
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}
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cond_free( $2 );
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}
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| COND_LITER
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{
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COND_input* cond = (COND_input*) info;
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$$.type = VALUE_LITERAL;
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$$.u.string = COND_GetLiteral( cond, &$1 );
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if( !$$.u.string )
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YYABORT;
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}
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| COND_NUMBER
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{
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COND_input* cond = (COND_input*) info;
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LPWSTR szNum = COND_GetString( cond, &$1 );
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if( !szNum )
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YYABORT;
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$$.type = VALUE_INTEGER;
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$$.u.integer = atoiW( szNum );
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cond_free( szNum );
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}
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| COND_DOLLARS identifier
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{
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COND_input* cond = (COND_input*) info;
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INSTALLSTATE install = INSTALLSTATE_UNKNOWN, action = INSTALLSTATE_UNKNOWN;
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if(MSI_GetComponentStateW(cond->package, $2, &install, &action ) != ERROR_SUCCESS)
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{
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$$.type = VALUE_LITERAL;
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$$.u.string = NULL;
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}
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else
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{
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$$.type = VALUE_INTEGER;
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$$.u.integer = action;
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}
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cond_free( $2 );
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}
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| COND_QUESTION identifier
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{
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COND_input* cond = (COND_input*) info;
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INSTALLSTATE install = INSTALLSTATE_UNKNOWN, action = INSTALLSTATE_UNKNOWN;
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if(MSI_GetComponentStateW(cond->package, $2, &install, &action ) != ERROR_SUCCESS)
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{
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$$.type = VALUE_LITERAL;
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$$.u.string = NULL;
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}
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else
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{
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$$.type = VALUE_INTEGER;
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$$.u.integer = install;
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}
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cond_free( $2 );
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}
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| COND_AMPER identifier
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{
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COND_input* cond = (COND_input*) info;
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INSTALLSTATE install, action;
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if (MSI_GetFeatureStateW(cond->package, $2, &install, &action ) != ERROR_SUCCESS)
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{
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$$.type = VALUE_LITERAL;
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$$.u.string = NULL;
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}
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else
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{
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$$.type = VALUE_INTEGER;
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$$.u.integer = action;
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}
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cond_free( $2 );
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}
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| COND_EXCLAM identifier
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{
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COND_input* cond = (COND_input*) info;
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INSTALLSTATE install = INSTALLSTATE_UNKNOWN, action = INSTALLSTATE_UNKNOWN;
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if(MSI_GetFeatureStateW(cond->package, $2, &install, &action ) != ERROR_SUCCESS)
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{
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$$.type = VALUE_LITERAL;
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$$.u.string = NULL;
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}
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else
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{
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$$.type = VALUE_INTEGER;
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$$.u.integer = install;
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}
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cond_free( $2 );
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}
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;
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identifier:
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COND_IDENT
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{
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COND_input* cond = (COND_input*) info;
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$$ = COND_GetString( cond, &$1 );
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if( !$$ )
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YYABORT;
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}
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;
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%%
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static int COND_IsAlpha( WCHAR x )
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{
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return( ( ( x >= 'A' ) && ( x <= 'Z' ) ) ||
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( ( x >= 'a' ) && ( x <= 'z' ) ) ||
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( ( x == '_' ) ) );
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}
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static int COND_IsNumber( WCHAR x )
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{
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return( (( x >= '0' ) && ( x <= '9' )) || (x =='-') || (x =='.') );
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}
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static WCHAR *strstriW( const WCHAR *str, const WCHAR *sub )
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{
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LPWSTR strlower, sublower, r;
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strlower = CharLowerW( strdupW( str ) );
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sublower = CharLowerW( strdupW( sub ) );
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r = strstrW( strlower, sublower );
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if (r)
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r = (LPWSTR)str + (r - strlower);
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msi_free( strlower );
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msi_free( sublower );
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return r;
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}
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static BOOL str_is_number( LPCWSTR str )
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{
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int i;
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if (!*str)
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return FALSE;
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for (i = 0; i < lstrlenW( str ); i++)
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if (!isdigitW(str[i]))
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return FALSE;
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return TRUE;
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}
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static INT compare_substring( LPCWSTR a, INT operator, LPCWSTR b )
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{
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int lhs, rhs;
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/* substring operators return 0 if LHS is missing */
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if (!a || !*a)
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return 0;
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/* substring operators return 1 if RHS is missing */
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if (!b || !*b)
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return 1;
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/* if both strings contain only numbers, use integer comparison */
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lhs = atoiW(a);
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rhs = atoiW(b);
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if (str_is_number(a) && str_is_number(b))
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return compare_int( lhs, operator, rhs );
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switch (operator)
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{
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case COND_SS:
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return strstrW( a, b ) != 0;
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case COND_ISS:
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return strstriW( a, b ) != 0;
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case COND_LHS:
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{
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int l = strlenW( a );
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int r = strlenW( b );
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if (r > l) return 0;
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return !strncmpW( a, b, r );
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}
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case COND_RHS:
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{
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int l = strlenW( a );
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int r = strlenW( b );
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if (r > l) return 0;
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return !strncmpW( a + (l - r), b, r );
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}
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case COND_ILHS:
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{
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int l = strlenW( a );
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int r = strlenW( b );
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if (r > l) return 0;
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return !strncmpiW( a, b, r );
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}
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case COND_IRHS:
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{
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int l = strlenW( a );
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int r = strlenW( b );
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if (r > l) return 0;
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return !strncmpiW( a + (l - r), b, r );
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}
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default:
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ERR("invalid substring operator\n");
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return 0;
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}
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return 0;
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}
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static INT compare_string( LPCWSTR a, INT operator, LPCWSTR b, BOOL convert )
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{
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if (operator >= COND_SS && operator <= COND_RHS)
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return compare_substring( a, operator, b );
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/* null and empty string are equivalent */
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if (!a) a = szEmpty;
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if (!b) b = szEmpty;
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if (convert && str_is_number(a) && str_is_number(b))
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return compare_int( atoiW(a), operator, atoiW(b) );
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/* a or b may be NULL */
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switch (operator)
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{
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case COND_LT:
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return strcmpW( a, b ) < 0;
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case COND_GT:
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return strcmpW( a, b ) > 0;
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case COND_EQ:
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return strcmpW( a, b ) == 0;
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case COND_NE:
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return strcmpW( a, b ) != 0;
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case COND_GE:
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return strcmpW( a, b ) >= 0;
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case COND_LE:
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return strcmpW( a, b ) <= 0;
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case COND_ILT:
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return strcmpiW( a, b ) < 0;
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case COND_IGT:
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return strcmpiW( a, b ) > 0;
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case COND_IEQ:
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return strcmpiW( a, b ) == 0;
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case COND_INE:
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return strcmpiW( a, b ) != 0;
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case COND_IGE:
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return strcmpiW( a, b ) >= 0;
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case COND_ILE:
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return strcmpiW( a, b ) <= 0;
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default:
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ERR("invalid string operator\n");
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return 0;
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}
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return 0;
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}
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static INT compare_int( INT a, INT operator, INT b )
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{
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switch (operator)
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{
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case COND_LT:
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case COND_ILT:
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return a < b;
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case COND_GT:
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case COND_IGT:
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return a > b;
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case COND_EQ:
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case COND_IEQ:
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return a == b;
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case COND_NE:
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case COND_INE:
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return a != b;
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case COND_GE:
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case COND_IGE:
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return a >= b;
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case COND_LE:
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case COND_ILE:
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return a <= b;
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case COND_SS:
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case COND_ISS:
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return ( a & b ) ? 1 : 0;
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case COND_RHS:
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return ( ( a & 0xffff ) == b ) ? 1 : 0;
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case COND_LHS:
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return ( ( (a>>16) & 0xffff ) == b ) ? 1 : 0;
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default:
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ERR("invalid integer operator\n");
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return 0;
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}
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return 0;
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}
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static int COND_IsIdent( WCHAR x )
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{
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return( COND_IsAlpha( x ) || COND_IsNumber( x ) || ( x == '_' )
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|| ( x == '#' ) || (x == '.') );
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}
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static int COND_GetOperator( COND_input *cond )
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{
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static const struct {
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const WCHAR str[4];
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int id;
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} table[] = {
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{ {'~','<','=',0}, COND_ILE },
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{ {'~','>','<',0}, COND_ISS },
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{ {'~','>','>',0}, COND_IRHS },
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{ {'~','<','>',0}, COND_INE },
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{ {'~','>','=',0}, COND_IGE },
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{ {'~','<','<',0}, COND_ILHS },
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{ {'~','=',0}, COND_IEQ },
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{ {'~','<',0}, COND_ILT },
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{ {'~','>',0}, COND_IGT },
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{ {'>','=',0}, COND_GE },
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{ {'>','<',0}, COND_SS },
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{ {'<','<',0}, COND_LHS },
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{ {'<','>',0}, COND_NE },
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{ {'<','=',0}, COND_LE },
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{ {'>','>',0}, COND_RHS },
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{ {'>',0}, COND_GT },
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{ {'<',0}, COND_LT },
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{ {0}, 0 }
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};
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LPCWSTR p = &cond->str[cond->n];
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int i = 0, len;
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while ( 1 )
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{
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len = lstrlenW( table[i].str );
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if ( !len || 0 == strncmpW( table[i].str, p, len ) )
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break;
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i++;
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}
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cond->n += len;
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return table[i].id;
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}
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static int COND_GetOne( struct cond_str *str, COND_input *cond )
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{
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int rc, len = 1;
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WCHAR ch;
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str->data = &cond->str[cond->n];
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ch = str->data[0];
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switch( ch )
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{
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case 0: return 0;
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case '(': rc = COND_LPAR; break;
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case ')': rc = COND_RPAR; break;
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case '&': rc = COND_AMPER; break;
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case '!': rc = COND_EXCLAM; break;
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case '$': rc = COND_DOLLARS; break;
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case '?': rc = COND_QUESTION; break;
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case '%': rc = COND_PERCENT; break;
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case ' ': rc = COND_SPACE; break;
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case '=': rc = COND_EQ; break;
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case '~':
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case '<':
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case '>':
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rc = COND_GetOperator( cond );
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if (!rc)
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rc = COND_ERROR;
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return rc;
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default:
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rc = 0;
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}
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if ( rc )
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{
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cond->n += len;
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return rc;
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}
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if (ch == '"' )
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|
{
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LPCWSTR p = strchrW( str->data + 1, '"' );
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if (!p) return COND_ERROR;
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len = p - str->data + 1;
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rc = COND_LITER;
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}
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else if( COND_IsAlpha( ch ) )
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{
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static const WCHAR szNot[] = {'N','O','T',0};
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static const WCHAR szAnd[] = {'A','N','D',0};
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static const WCHAR szXor[] = {'X','O','R',0};
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static const WCHAR szEqv[] = {'E','Q','V',0};
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static const WCHAR szImp[] = {'I','M','P',0};
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static const WCHAR szOr[] = {'O','R',0};
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|
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while( COND_IsIdent( str->data[len] ) )
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len++;
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rc = COND_IDENT;
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if ( len == 3 )
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{
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if ( !strncmpiW( str->data, szNot, len ) )
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rc = COND_NOT;
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else if( !strncmpiW( str->data, szAnd, len ) )
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rc = COND_AND;
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else if( !strncmpiW( str->data, szXor, len ) )
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rc = COND_XOR;
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else if( !strncmpiW( str->data, szEqv, len ) )
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rc = COND_EQV;
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else if( !strncmpiW( str->data, szImp, len ) )
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rc = COND_IMP;
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}
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else if( (len == 2) && !strncmpiW( str->data, szOr, len ) )
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|
rc = COND_OR;
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}
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else if( COND_IsNumber( ch ) )
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{
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while( COND_IsNumber( str->data[len] ) )
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len++;
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rc = COND_NUMBER;
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}
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else
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{
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ERR("Got unknown character %c(%x)\n",ch,ch);
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return COND_ERROR;
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|
}
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|
cond->n += len;
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str->len = len;
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|
return rc;
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|
}
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static int cond_lex( void *COND_lval, COND_input *cond )
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|
{
|
|
int rc;
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struct cond_str *str = COND_lval;
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do {
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rc = COND_GetOne( str, cond );
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|
} while (rc == COND_SPACE);
|
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|
|
return rc;
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|
}
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|
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static LPWSTR COND_GetString( COND_input *cond, const struct cond_str *str )
|
|
{
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|
LPWSTR ret;
|
|
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ret = cond_alloc( cond, (str->len+1) * sizeof (WCHAR) );
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if( ret )
|
|
{
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|
memcpy( ret, str->data, str->len * sizeof(WCHAR));
|
|
ret[str->len]=0;
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}
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|
TRACE("Got identifier %s\n",debugstr_w(ret));
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|
return ret;
|
|
}
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static LPWSTR COND_GetLiteral( COND_input *cond, const struct cond_str *str )
|
|
{
|
|
LPWSTR ret;
|
|
|
|
ret = cond_alloc( cond, (str->len-1) * sizeof (WCHAR) );
|
|
if( ret )
|
|
{
|
|
memcpy( ret, str->data+1, (str->len-2) * sizeof(WCHAR) );
|
|
ret[str->len - 2]=0;
|
|
}
|
|
TRACE("Got literal %s\n",debugstr_w(ret));
|
|
return ret;
|
|
}
|
|
|
|
static void *cond_alloc( COND_input *cond, unsigned int sz )
|
|
{
|
|
struct list *mem;
|
|
|
|
mem = msi_alloc( sizeof (struct list) + sz );
|
|
if( !mem )
|
|
return NULL;
|
|
|
|
list_add_head( &(cond->mem), mem );
|
|
return mem + 1;
|
|
}
|
|
|
|
static void *cond_track_mem( COND_input *cond, void *ptr, unsigned int sz )
|
|
{
|
|
void *new_ptr;
|
|
|
|
if( !ptr )
|
|
return ptr;
|
|
|
|
new_ptr = cond_alloc( cond, sz );
|
|
if( !new_ptr )
|
|
{
|
|
msi_free( ptr );
|
|
return NULL;
|
|
}
|
|
|
|
memcpy( new_ptr, ptr, sz );
|
|
msi_free( ptr );
|
|
return new_ptr;
|
|
}
|
|
|
|
static void cond_free( void *ptr )
|
|
{
|
|
struct list *mem = (struct list *)ptr - 1;
|
|
|
|
if( ptr )
|
|
{
|
|
list_remove( mem );
|
|
msi_free( mem );
|
|
}
|
|
}
|
|
|
|
static int cond_error( COND_input *info, const char *str )
|
|
{
|
|
TRACE("%s\n", str );
|
|
return 0;
|
|
}
|
|
|
|
MSICONDITION MSI_EvaluateConditionW( MSIPACKAGE *package, LPCWSTR szCondition )
|
|
{
|
|
COND_input cond;
|
|
MSICONDITION r;
|
|
struct list *mem, *safety;
|
|
|
|
TRACE("%s\n", debugstr_w( szCondition ) );
|
|
|
|
if (szCondition == NULL) return MSICONDITION_NONE;
|
|
|
|
cond.package = package;
|
|
cond.str = szCondition;
|
|
cond.n = 0;
|
|
cond.result = MSICONDITION_ERROR;
|
|
|
|
list_init( &cond.mem );
|
|
|
|
if ( !cond_parse( &cond ) )
|
|
r = cond.result;
|
|
else
|
|
r = MSICONDITION_ERROR;
|
|
|
|
LIST_FOR_EACH_SAFE( mem, safety, &cond.mem )
|
|
{
|
|
/* The tracked memory lives directly after the list struct */
|
|
void *ptr = mem + 1;
|
|
if ( r != MSICONDITION_ERROR )
|
|
WARN( "condition parser failed to free up some memory: %p\n", ptr );
|
|
cond_free( ptr );
|
|
}
|
|
|
|
TRACE("%i <- %s\n", r, debugstr_w(szCondition));
|
|
return r;
|
|
}
|
|
|
|
MSICONDITION WINAPI MsiEvaluateConditionW( MSIHANDLE hInstall, LPCWSTR szCondition )
|
|
{
|
|
MSIPACKAGE *package;
|
|
UINT ret;
|
|
|
|
package = msihandle2msiinfo( hInstall, MSIHANDLETYPE_PACKAGE);
|
|
if( !package )
|
|
{
|
|
MSIHANDLE remote;
|
|
HRESULT hr;
|
|
BSTR condition;
|
|
|
|
if (!(remote = msi_get_remote(hInstall)))
|
|
return MSICONDITION_ERROR;
|
|
|
|
condition = SysAllocString( szCondition );
|
|
if (!condition)
|
|
return ERROR_OUTOFMEMORY;
|
|
|
|
hr = remote_EvaluateCondition(remote, condition);
|
|
|
|
SysFreeString( condition );
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
if (HRESULT_FACILITY(hr) == FACILITY_WIN32)
|
|
return HRESULT_CODE(hr);
|
|
|
|
return ERROR_FUNCTION_FAILED;
|
|
}
|
|
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
ret = MSI_EvaluateConditionW( package, szCondition );
|
|
msiobj_release( &package->hdr );
|
|
return ret;
|
|
}
|
|
|
|
MSICONDITION WINAPI MsiEvaluateConditionA( MSIHANDLE hInstall, LPCSTR szCondition )
|
|
{
|
|
LPWSTR szwCond = NULL;
|
|
MSICONDITION r;
|
|
|
|
szwCond = strdupAtoW( szCondition );
|
|
if( szCondition && !szwCond )
|
|
return MSICONDITION_ERROR;
|
|
|
|
r = MsiEvaluateConditionW( hInstall, szwCond );
|
|
msi_free( szwCond );
|
|
return r;
|
|
}
|