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418 lines
10 KiB
C
418 lines
10 KiB
C
/* rwmconf.c - rewrite/map configuration file routines */
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/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 1999-2011 The OpenLDAP Foundation.
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* Portions Copyright 1999-2003 Howard Chu.
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* Portions Copyright 2000-2003 Pierangelo Masarati.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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/* ACKNOWLEDGEMENTS:
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* This work was initially developed by the Howard Chu for inclusion
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* in OpenLDAP Software and subsequently enhanced by Pierangelo
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* Masarati.
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*/
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#include "portable.h"
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#ifdef SLAPD_OVER_RWM
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#include <stdio.h>
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#include <ac/string.h>
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#include <ac/socket.h>
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#include "slap.h"
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#include "rwm.h"
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#include "lutil.h"
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int
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rwm_map_config(
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struct ldapmap *oc_map,
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struct ldapmap *at_map,
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const char *fname,
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int lineno,
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int argc,
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char **argv )
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{
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struct ldapmap *map;
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struct ldapmapping *mapping;
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char *src, *dst;
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int is_oc = 0;
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int rc = 0;
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if ( argc < 3 || argc > 4 ) {
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Debug( LDAP_DEBUG_ANY,
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"%s: line %d: syntax is \"map {objectclass | attribute} [<local> | *] {<foreign> | *}\"\n",
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fname, lineno, 0 );
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return 1;
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}
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if ( strcasecmp( argv[1], "objectclass" ) == 0 ) {
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map = oc_map;
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is_oc = 1;
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} else if ( strcasecmp( argv[1], "attribute" ) == 0 ) {
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map = at_map;
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} else {
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Debug( LDAP_DEBUG_ANY, "%s: line %d: syntax is "
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"\"map {objectclass | attribute} [<local> | *] "
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"{<foreign> | *}\"\n",
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fname, lineno, 0 );
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return 1;
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}
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if ( !is_oc && map->map == NULL ) {
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/* only init if required */
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if ( rwm_map_init( map, &mapping ) != LDAP_SUCCESS ) {
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return 1;
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}
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}
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if ( strcmp( argv[2], "*" ) == 0 ) {
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if ( argc < 4 || strcmp( argv[3], "*" ) == 0 ) {
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map->drop_missing = ( argc < 4 );
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goto success_return;
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}
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src = dst = argv[3];
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} else if ( argc < 4 ) {
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src = "";
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dst = argv[2];
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} else {
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src = argv[2];
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dst = ( strcmp( argv[3], "*" ) == 0 ? src : argv[3] );
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}
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if ( ( map == at_map )
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&& ( strcasecmp( src, "objectclass" ) == 0
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|| strcasecmp( dst, "objectclass" ) == 0 ) )
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{
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Debug( LDAP_DEBUG_ANY,
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"%s: line %d: objectclass attribute cannot be mapped\n",
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fname, lineno, 0 );
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return 1;
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}
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mapping = (struct ldapmapping *)ch_calloc( 2,
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sizeof(struct ldapmapping) );
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if ( mapping == NULL ) {
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Debug( LDAP_DEBUG_ANY,
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"%s: line %d: out of memory\n",
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fname, lineno, 0 );
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return 1;
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}
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ber_str2bv( src, 0, 1, &mapping[0].m_src );
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ber_str2bv( dst, 0, 1, &mapping[0].m_dst );
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mapping[1].m_src = mapping[0].m_dst;
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mapping[1].m_dst = mapping[0].m_src;
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mapping[0].m_flags = RWMMAP_F_NONE;
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mapping[1].m_flags = RWMMAP_F_NONE;
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/*
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* schema check
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*/
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if ( is_oc ) {
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if ( src[0] != '\0' ) {
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mapping[0].m_src_oc = oc_bvfind( &mapping[0].m_src );
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if ( mapping[0].m_src_oc == NULL ) {
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Debug( LDAP_DEBUG_ANY,
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"%s: line %d: warning, source objectClass '%s' "
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"should be defined in schema\n",
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fname, lineno, src );
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/*
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* FIXME: this should become an err
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*/
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mapping[0].m_src_oc = ch_malloc( sizeof( ObjectClass ) );
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memset( mapping[0].m_src_oc, 0, sizeof( ObjectClass ) );
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mapping[0].m_src_oc->soc_cname = mapping[0].m_src;
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mapping[0].m_flags |= RWMMAP_F_FREE_SRC;
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}
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mapping[1].m_dst_oc = mapping[0].m_src_oc;
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}
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mapping[0].m_dst_oc = oc_bvfind( &mapping[0].m_dst );
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if ( mapping[0].m_dst_oc == NULL ) {
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Debug( LDAP_DEBUG_ANY,
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"%s: line %d: warning, destination objectClass '%s' "
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"is not defined in schema\n",
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fname, lineno, dst );
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mapping[0].m_dst_oc = oc_bvfind_undef( &mapping[0].m_dst );
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if ( mapping[0].m_dst_oc == NULL ) {
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Debug( LDAP_DEBUG_ANY, "%s: line %d: unable to mimic destination objectClass '%s'\n",
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fname, lineno, dst );
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goto error_return;
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}
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}
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mapping[1].m_src_oc = mapping[0].m_dst_oc;
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mapping[0].m_flags |= RWMMAP_F_IS_OC;
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mapping[1].m_flags |= RWMMAP_F_IS_OC;
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} else {
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int rc;
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const char *text = NULL;
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if ( src[0] != '\0' ) {
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rc = slap_bv2ad( &mapping[0].m_src,
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&mapping[0].m_src_ad, &text );
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if ( rc != LDAP_SUCCESS ) {
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Debug( LDAP_DEBUG_ANY,
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"%s: line %d: warning, source attributeType '%s' "
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"should be defined in schema\n",
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fname, lineno, src );
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/*
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* we create a fake "proxied" ad
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* and add it here.
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*/
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rc = slap_bv2undef_ad( &mapping[0].m_src,
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&mapping[0].m_src_ad, &text,
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SLAP_AD_PROXIED );
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if ( rc != LDAP_SUCCESS ) {
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char prefix[1024];
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snprintf( prefix, sizeof(prefix),
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"%s: line %d: source attributeType '%s': %d",
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fname, lineno, src, rc );
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Debug( LDAP_DEBUG_ANY, "%s (%s)\n",
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prefix, text ? text : "null", 0 );
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goto error_return;
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}
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}
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mapping[1].m_dst_ad = mapping[0].m_src_ad;
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}
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rc = slap_bv2ad( &mapping[0].m_dst, &mapping[0].m_dst_ad, &text );
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if ( rc != LDAP_SUCCESS ) {
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Debug( LDAP_DEBUG_ANY,
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"%s: line %d: warning, destination attributeType '%s' "
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"is not defined in schema\n",
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fname, lineno, dst );
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rc = slap_bv2undef_ad( &mapping[0].m_dst,
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&mapping[0].m_dst_ad, &text,
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SLAP_AD_PROXIED );
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if ( rc != LDAP_SUCCESS ) {
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char prefix[1024];
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snprintf( prefix, sizeof(prefix),
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"%s: line %d: destination attributeType '%s': %d",
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fname, lineno, dst, rc );
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Debug( LDAP_DEBUG_ANY, "%s (%s)\n",
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prefix, text ? text : "null", 0 );
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goto error_return;
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}
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}
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mapping[1].m_src_ad = mapping[0].m_dst_ad;
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}
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if ( ( src[0] != '\0' && avl_find( map->map, (caddr_t)mapping, rwm_mapping_cmp ) != NULL)
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|| avl_find( map->remap, (caddr_t)&mapping[1], rwm_mapping_cmp ) != NULL)
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{
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Debug( LDAP_DEBUG_ANY,
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"%s: line %d: duplicate mapping found.\n",
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fname, lineno, 0 );
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/* FIXME: free stuff */
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goto error_return;
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}
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if ( src[0] != '\0' ) {
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avl_insert( &map->map, (caddr_t)&mapping[0],
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rwm_mapping_cmp, rwm_mapping_dup );
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}
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avl_insert( &map->remap, (caddr_t)&mapping[1],
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rwm_mapping_cmp, rwm_mapping_dup );
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success_return:;
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return rc;
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error_return:;
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if ( mapping ) {
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rwm_mapping_free( mapping );
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}
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return 1;
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}
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static char *
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rwm_suffix_massage_regexize( const char *s )
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{
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char *res, *ptr;
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const char *p, *r;
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int i;
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if ( s[0] == '\0' ) {
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return ch_strdup( "^(.+)$" );
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}
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for ( i = 0, p = s;
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( r = strchr( p, ',' ) ) != NULL;
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p = r + 1, i++ )
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;
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res = ch_calloc( sizeof( char ), strlen( s )
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+ STRLENOF( "((.+),)?" )
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+ STRLENOF( "[ ]?" ) * i
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+ STRLENOF( "$" ) + 1 );
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ptr = lutil_strcopy( res, "((.+),)?" );
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for ( i = 0, p = s;
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( r = strchr( p, ',' ) ) != NULL;
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p = r + 1 , i++ ) {
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ptr = lutil_strncopy( ptr, p, r - p + 1 );
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ptr = lutil_strcopy( ptr, "[ ]?" );
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if ( r[ 1 ] == ' ' ) {
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r++;
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}
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}
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ptr = lutil_strcopy( ptr, p );
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ptr[0] = '$';
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ptr[1] = '\0';
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return res;
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}
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static char *
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rwm_suffix_massage_patternize( const char *s, const char *p )
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{
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ber_len_t len;
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char *res, *ptr;
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len = strlen( p );
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if ( s[ 0 ] == '\0' ) {
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len++;
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}
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res = ch_calloc( sizeof( char ), len + STRLENOF( "%1" ) + 1 );
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if ( res == NULL ) {
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return NULL;
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}
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ptr = lutil_strcopy( res, ( p[0] == '\0' ? "%2" : "%1" ) );
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if ( s[ 0 ] == '\0' ) {
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ptr[ 0 ] = ',';
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ptr++;
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}
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lutil_strcopy( ptr, p );
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return res;
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}
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int
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rwm_suffix_massage_config(
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struct rewrite_info *info,
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struct berval *pvnc,
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struct berval *nvnc,
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struct berval *prnc,
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struct berval *nrnc
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)
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{
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char *rargv[ 5 ];
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int line = 0;
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rargv[ 0 ] = "rewriteEngine";
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rargv[ 1 ] = "on";
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rargv[ 2 ] = NULL;
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rewrite_parse( info, "<suffix massage>", ++line, 2, rargv );
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rargv[ 0 ] = "rewriteContext";
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rargv[ 1 ] = "default";
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rargv[ 2 ] = NULL;
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rewrite_parse( info, "<suffix massage>", ++line, 2, rargv );
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rargv[ 0 ] = "rewriteRule";
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rargv[ 1 ] = rwm_suffix_massage_regexize( pvnc->bv_val );
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rargv[ 2 ] = rwm_suffix_massage_patternize( pvnc->bv_val, prnc->bv_val );
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rargv[ 3 ] = ":";
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rargv[ 4 ] = NULL;
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rewrite_parse( info, "<suffix massage>", ++line, 4, rargv );
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ch_free( rargv[ 1 ] );
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ch_free( rargv[ 2 ] );
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if ( BER_BVISEMPTY( pvnc ) ) {
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rargv[ 0 ] = "rewriteRule";
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rargv[ 1 ] = "^$";
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rargv[ 2 ] = prnc->bv_val;
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rargv[ 3 ] = ":";
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rargv[ 4 ] = NULL;
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rewrite_parse( info, "<suffix massage>", ++line, 4, rargv );
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}
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rargv[ 0 ] = "rewriteContext";
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rargv[ 1 ] = "searchEntryDN";
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rargv[ 2 ] = NULL;
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rewrite_parse( info, "<suffix massage>", ++line, 2, rargv );
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rargv[ 0 ] = "rewriteRule";
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rargv[ 1 ] = rwm_suffix_massage_regexize( prnc->bv_val );
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rargv[ 2 ] = rwm_suffix_massage_patternize( prnc->bv_val, pvnc->bv_val );
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rargv[ 3 ] = ":";
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rargv[ 4 ] = NULL;
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rewrite_parse( info, "<suffix massage>", ++line, 4, rargv );
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ch_free( rargv[ 1 ] );
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ch_free( rargv[ 2 ] );
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if ( BER_BVISEMPTY( prnc ) ) {
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rargv[ 0 ] = "rewriteRule";
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rargv[ 1 ] = "^$";
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rargv[ 2 ] = pvnc->bv_val;
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rargv[ 3 ] = ":";
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rargv[ 4 ] = NULL;
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rewrite_parse( info, "<suffix massage>", ++line, 4, rargv );
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}
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rargv[ 0 ] = "rewriteContext";
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rargv[ 1 ] = "matchedDN";
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rargv[ 2 ] = "alias";
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rargv[ 3 ] = "searchEntryDN";
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rargv[ 4 ] = NULL;
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rewrite_parse( info, "<suffix massage>", ++line, 4, rargv );
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#ifdef RWM_REFERRAL_REWRITE
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/* FIXME: we don't want this on by default, do we? */
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rargv[ 0 ] = "rewriteContext";
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rargv[ 1 ] = "referralDN";
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rargv[ 2 ] = "alias";
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rargv[ 3 ] = "searchEntryDN";
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rargv[ 4 ] = NULL;
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rewrite_parse( info, "<suffix massage>", ++line, 4, rargv );
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#else /* ! RWM_REFERRAL_REWRITE */
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rargv[ 0 ] = "rewriteContext";
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rargv[ 1 ] = "referralAttrDN";
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rargv[ 2 ] = NULL;
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rewrite_parse( info, "<suffix massage>", ++line, 2, rargv );
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rargv[ 0 ] = "rewriteContext";
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rargv[ 1 ] = "referralDN";
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rargv[ 2 ] = NULL;
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rewrite_parse( info, "<suffix massage>", ++line, 2, rargv );
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#endif /* ! RWM_REFERRAL_REWRITE */
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rargv[ 0 ] = "rewriteContext";
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rargv[ 1 ] = "searchAttrDN";
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rargv[ 2 ] = "alias";
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rargv[ 3 ] = "searchEntryDN";
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rargv[ 4 ] = NULL;
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rewrite_parse( info, "<suffix massage>", ++line, 4, rargv );
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return 0;
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}
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#endif /* SLAPD_OVER_RWM */
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