-/* str2filter.c - parse an rfc 1588 string filter */
+/* str2filter.c - parse an RFC 4515 string filter */
/* $OpenLDAP$ */
-/*
- * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2012 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* Portions Copyright (c) 1995 Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of Michigan at Ann Arbor. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
*/
#include "portable.h"
#include <ac/socket.h>
#include "slap.h"
-#include <ldap_pvt.h>
-static char *find_matching_paren( const char *s );
-static Filter *str2list( const char *str, long unsigned int ftype);
-static Filter *str2simple( const char *str);
-static int str2subvals( const char *val, Filter *f);
Filter *
-str2filter( const char *str )
+str2filter_x( Operation *op, const char *str )
{
+ int rc;
Filter *f = NULL;
- char *end, *freeme;
+ BerElementBuffer berbuf;
+ BerElement *ber = (BerElement *)&berbuf;
+ const char *text = NULL;
-#ifdef NEW_LOGGING
- LDAP_LOG(( "filter", LDAP_LEVEL_ENTRY,
- "str2filter: \"%s\"\n", str ));
-#else
Debug( LDAP_DEBUG_FILTER, "str2filter \"%s\"\n", str, 0, 0 );
-#endif
-
if ( str == NULL || *str == '\0' ) {
- return( NULL );
- }
-
- str = freeme = ch_strdup( str );
-
- switch ( *str ) {
- case '(':
- if ( (end = find_matching_paren( str )) == NULL ) {
- filter_free( f );
- free( freeme );
- return( NULL );
- }
- *end = '\0';
-
- str++;
- switch ( *str ) {
- case '&':
-#ifdef NEW_LOGGING
- LDAP_LOG(( "filter", LDAP_LEVEL_DETAIL1,
- "str2filter: AND\n" ));
-#else
- Debug( LDAP_DEBUG_FILTER, "str2filter: AND\n",
- 0, 0, 0 );
-#endif
-
-
- str++;
- f = str2list( str, LDAP_FILTER_AND );
- break;
-
- case '|':
-#ifdef NEW_LOGGING
- LDAP_LOG(( "filter", LDAP_LEVEL_DETAIL1,
- "str2filter: OR\n" ));
-#else
- Debug( LDAP_DEBUG_FILTER, "put_filter: OR\n",
- 0, 0, 0 );
-#endif
-
-
- str++;
- f = str2list( str, LDAP_FILTER_OR );
- break;
-
- case '!':
-#ifdef NEW_LOGGING
- LDAP_LOG(( "filter", LDAP_LEVEL_DETAIL1,
- "str2filter: NOT\n" ));
-#else
- Debug( LDAP_DEBUG_FILTER, "put_filter: NOT\n",
- 0, 0, 0 );
-#endif
-
-
- str++;
- f = str2list( str, LDAP_FILTER_NOT );
- break;
-
- default:
-#ifdef NEW_LOGGING
- LDAP_LOG(( "filter", LDAP_LEVEL_DETAIL1,
- "str2filter: simple\n" ));
-#else
- Debug( LDAP_DEBUG_FILTER, "str2filter: simple\n",
- 0, 0, 0 );
-#endif
-
-
- f = str2simple( str );
- break;
- }
- *end = ')';
- break;
-
- default: /* assume it's a simple type=value filter */
-#ifdef NEW_LOGGING
- LDAP_LOG(( "filter", LDAP_LEVEL_DETAIL1,
- "str2filter: default\n" ));
-#else
- Debug( LDAP_DEBUG_FILTER, "str2filter: default\n", 0, 0,
- 0 );
-#endif
-
-
- f = str2simple( str );
- break;
- }
-
- free( freeme );
- return( f );
-}
-
-/*
- * Put a list of filters like this "(filter1)(filter2)..."
- */
-
-static Filter *
-str2list( const char *str, unsigned long ftype )
-{
- Filter *f;
- Filter **fp;
- char *next;
- char save;
-
-#ifdef NEW_LOGGING
- LDAP_LOG(( "filter", LDAP_LEVEL_ENTRY,
- "str2list: \"%s\"\n", str ));
-#else
- Debug( LDAP_DEBUG_FILTER, "str2list \"%s\"\n", str, 0, 0 );
-#endif
-
-
- f = (Filter *) ch_calloc( 1, sizeof(Filter) );
- f->f_choice = ftype;
- fp = &f->f_list;
-
- while ( *str ) {
- while ( *str && isspace( (unsigned char) *str ) )
- str++;
- if ( *str == '\0' )
- break;
-
- if ( (next = find_matching_paren( str )) == NULL ) {
- filter_free( f );
- return( NULL );
- }
- save = *++next;
- *next = '\0';
-
- /* now we have "(filter)" with str pointing to it */
- if ( (*fp = str2filter( str )) == NULL ) {
- filter_free( f );
- *next = save;
- return( NULL );
- }
- *next = save;
-
- str = next;
- fp = &(*fp)->f_next;
- }
- *fp = NULL;
-
- return( f );
-}
-
-static Filter *
-str2simple( const char *str )
-{
- Filter *f;
- char *s;
- char *value, savechar;
- int rc;
- const char *text;
-
-#ifdef NEW_LOGGING
- LDAP_LOG(( "filter", LDAP_LEVEL_ENTRY,
- "str2simple: \"%s\"\n", str ));
-#else
- Debug( LDAP_DEBUG_FILTER, "str2simple \"%s\"\n", str, 0, 0 );
-#endif
-
-
- if ( (s = strchr( str, '=' )) == NULL ) {
- return( NULL );
- }
- value = &s[1];
-
- *s-- = '\0'; /* we shouldn't be mucking with str */
- savechar = *s;
-
- f = (Filter *) ch_calloc( 1, sizeof(Filter) );
-
- switch ( *s ) {
- case '<':
- f->f_choice = LDAP_FILTER_LE;
- *s = '\0';
- break;
- case '>':
- f->f_choice = LDAP_FILTER_GE;
- *s = '\0';
- break;
- case '~':
- f->f_choice = LDAP_FILTER_APPROX;
- *s = '\0';
- break;
- case ':':
- f->f_choice = LDAP_FILTER_EXT;
- *s = '\0';
return NULL;
- break;
-
- default: {
- char *nextstar = ldap_pvt_find_wildcard( value );
- if ( nextstar == NULL ) {
- filter_free( f );
- *(value-1) = '=';
- return NULL;
- } else if ( nextstar == '\0' ) {
- f->f_choice = LDAP_FILTER_EQUALITY;
- } else if ( strcmp( value, "*" ) == 0 ) {
- f->f_choice = LDAP_FILTER_PRESENT;
- } else {
- f->f_choice = LDAP_FILTER_SUBSTRINGS;
- f->f_sub = ch_calloc( 1, sizeof( SubstringsAssertion ) );
- rc = slap_str2ad( str, &f->f_sub_desc, &text );
- if( rc != LDAP_SUCCESS ) {
- filter_free( f );
- *(value-1) = '=';
- return NULL;
- }
- if ( str2subvals( value, f ) != 0 ) {
- filter_free( f );
- *(value-1) = '=';
- return( NULL );
- }
- *(value-1) = '=';
- return( f );
- }
- } break;
}
- if ( f->f_choice == LDAP_FILTER_PRESENT ) {
- rc = slap_str2ad( str, &f->f_desc, &text );
- if( rc != LDAP_SUCCESS ) {
- filter_free( f );
- *(value-1) = '=';
- return NULL;
- }
- } else {
- char *tmp;
-
- f->f_ava = ch_calloc( 1, sizeof( AttributeAssertion ) );
- f->f_av_desc = NULL;
- rc = slap_str2ad( str, &f->f_av_desc, &text );
- if( rc != LDAP_SUCCESS ) {
- filter_free( f );
- *(value-1) = '=';
- return NULL;
- }
-
- tmp = ch_strdup( value );
- ldap_pvt_filter_value_unescape( tmp );
- ber_str2bv( tmp, 0, 0, &f->f_av_value );
+ ber_init2( ber, NULL, LBER_USE_DER );
+ if ( op->o_tmpmemctx ) {
+ ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
}
- *s = savechar;
- *(value-1) = '=';
-
- return( f );
-}
-
-static int
-str2subvals( const char *in, Filter *f )
-{
- char *nextstar, *val, *freeme;
- int gotstar;
- int final;
-
-#ifdef NEW_LOGGING
- LDAP_LOG(( "filter", LDAP_LEVEL_ENTRY,
- "str2subvals: \"%s\"\n", in ));
-#else
- Debug( LDAP_DEBUG_FILTER, "str2subvals \"%s\"\n", in, 0, 0 );
-#endif
-
-
- if( in == NULL ) return 0;
-
- val = freeme = ch_strdup( in );
- gotstar = final = 0;
-
- while ( *val ) {
- nextstar = ldap_pvt_find_wildcard( val );
-
- if ( nextstar == NULL ) {
- free( freeme );
- return -1;
- }
-
- if( *nextstar == '\0' ) {
- final = 1;
- } else {
- gotstar++;
- *nextstar = '\0';
- }
-
- ldap_pvt_filter_value_unescape( val );
-
- if ( final ) {
- ber_str2bv( val, 0, 1, &f->f_sub_final );
+ rc = ldap_pvt_put_filter( ber, str );
+ if( rc < 0 ) {
+ goto done;
+ }
- } else if ( gotstar <= 1 ) {
- ber_str2bv( val, 0, 1, &f->f_sub_initial );
+ ber_reset( ber, 1 );
- } else {
- charray_add( (char ***) &f->f_sub_any, (char *) ber_bvstrdup( val ) );
- }
+ rc = get_filter( op, ber, &f, &text );
- val = nextstar+1;
- }
+done:
+ ber_free_buf( ber );
- free( freeme );
- return( 0 );
+ return f;
}
-/*
- * find_matching_paren - return a pointer to the right paren in s matching
- * the left paren to which *s currently points
- */
-
-static char *
-find_matching_paren( const char *s )
+Filter *
+str2filter( const char *str )
{
- int balance, escape;
+ Operation op = {0};
+ Opheader ohdr = {0};
- balance = 0;
- escape = 0;
- for ( ; *s; s++ ) {
- if ( escape == 0 ) {
- if ( *s == '(' )
- balance++;
- else if ( *s == ')' )
- balance--;
- }
- if ( balance == 0 ) {
- return (char *) s;
- }
- if ( *s == '\\' && ! escape )
- escape = 1;
- else
- escape = 0;
- }
+ op.o_hdr = &ohdr;
+ op.o_tmpmemctx = NULL;
+ op.o_tmpmfuncs = &ch_mfuncs;
- return NULL;
+ return str2filter_x( &op, str );
}
projects / openldap / blobdiff