openldap/servers/slapd/back-ldap/config.c

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/* config.c - ldap backend configuration file routine */
/* $OpenLDAP$ */
2001-01-17 15:09:22 +08:00
/*
* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
/* This is an altered version */
/*
* Copyright 1999, Howard Chu, All rights reserved. <hyc@highlandsun.com>
*
* Permission is granted to anyone to use this software for any purpose
* on any computer system, and to alter it and redistribute it, subject
* to the following restrictions:
*
* 1. The author is not responsible for the consequences of use of this
* software, no matter how awful, even if they arise from flaws in it.
*
* 2. The origin of this software must not be misrepresented, either by
* explicit claim or by omission. Since few users ever read sources,
* credits should appear in the documentation.
*
* 3. Altered versions must be plainly marked as such, and must not be
* misrepresented as being the original software. Since few users
* ever read sources, credits should appear in the documentation.
*
* 4. This notice may not be removed or altered.
*
*
*
* Copyright 2000, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
*
* This software is being modified by Pierangelo Masarati.
* The previously reported conditions apply to the modified code as well.
* Changes in the original code are highlighted where required.
* Credits for the original code go to the author, Howard Chu.
*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include <ac/socket.h>
#include "slap.h"
#include "back-ldap.h"
int
ldap_back_db_config(
BackendDB *be,
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const char *fname,
int lineno,
int argc,
char **argv
)
{
struct ldapinfo *li = (struct ldapinfo *) be->be_private;
if ( li == NULL ) {
fprintf( stderr, "%s: line %d: ldap backend info is null!\n",
fname, lineno );
return( 1 );
}
/* server address to query (depricated, use "uri" directive) */
if ( strcasecmp( argv[0], "server" ) == 0 ) {
if (argc != 2) {
fprintf( stderr,
"%s: line %d: missing address in \"server <address>\" line\n",
fname, lineno );
return( 1 );
}
if (li->url != NULL)
ch_free(li->url);
li->url = ch_calloc(strlen(argv[1]) + 9, sizeof(char));
if (li->url != NULL) {
strcpy(li->url, "ldap://");
strcat(li->url, argv[1]);
strcat(li->url, "/");
}
/* URI of server to query (preferred over "server" directive) */
} else if ( strcasecmp( argv[0], "uri" ) == 0 ) {
if (argc != 2) {
fprintf( stderr,
"%s: line %d: missing address in \"uri <address>\" line\n",
fname, lineno );
return( 1 );
}
if (li->url != NULL)
ch_free(li->url);
li->url = ch_strdup(argv[1]);
/* name to use for ldap_back_group */
} else if ( strcasecmp( argv[0], "binddn" ) == 0 ) {
if (argc != 2) {
fprintf( stderr,
"%s: line %d: missing name in \"binddn <name>\" line\n",
fname, lineno );
return( 1 );
}
li->binddn = ch_strdup(argv[1]);
/* password to use for ldap_back_group */
} else if ( strcasecmp( argv[0], "bindpw" ) == 0 ) {
if (argc != 2) {
fprintf( stderr,
"%s: line %d: missing password in \"bindpw <password>\" line\n",
fname, lineno );
return( 1 );
}
li->bindpw = ch_strdup(argv[1]);
/* dn massaging */
} else if ( strcasecmp( argv[0], "suffixmassage" ) == 0 ) {
#ifndef ENABLE_REWRITE
char *dn, *massaged_dn;
#endif /* ENABLE_REWRITE */
BackendDB *tmp_be;
/*
* syntax:
*
* suffixmassage <suffix> <massaged suffix>
*
* the <suffix> field must be defined as a valid suffix
* (or suffixAlias?) for the current database;
* the <massaged suffix> shouldn't have already been
* defined as a valid suffix or suffixAlias for the
* current server
*/
if ( argc != 3 ) {
fprintf( stderr, "%s: line %d: syntax is"
" \"suffixMassage <suffix>"
" <massaged suffix>\"\n",
fname, lineno );
return( 1 );
}
tmp_be = select_backend( argv[1], 0 );
if ( tmp_be != NULL && tmp_be != be ) {
fprintf( stderr, "%s: line %d: suffix already in use"
" by another backend in"
" \"suffixMassage <suffix>"
" <massaged suffix>\"\n",
fname, lineno );
return( 1 );
}
tmp_be = select_backend( argv[2], 0 );
if ( tmp_be != NULL ) {
fprintf( stderr, "%s: line %d: massaged suffix"
" already in use by another backend in"
" \"suffixMassage <suffix>"
" <massaged suffix>\"\n",
fname, lineno );
return( 1 );
}
#ifdef ENABLE_REWRITE
/*
* The suffix massaging is emulated by means of the
* rewrite capabilities
* FIXME: no extra rewrite capabilities should be added
* to the database
*/
return suffix_massage_config( li->rwinfo, argc, argv );
#else /* !ENABLE_REWRITE */
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dn = ch_strdup( argv[1] );
charray_add( &li->suffix_massage, dn );
(void) dn_normalize( dn );
charray_add( &li->suffix_massage, dn );
massaged_dn = ch_strdup( argv[2] );
charray_add( &li->suffix_massage, massaged_dn );
(void) dn_normalize( massaged_dn );
charray_add( &li->suffix_massage, massaged_dn );
free( dn );
free( massaged_dn );
#endif /* !ENABLE_REWRITE */
#ifdef ENABLE_REWRITE
/* rewrite stuff ... */
} else if ( strncasecmp( argv[0], "rewrite", 7 ) == 0 ) {
return rewrite_parse( li->rwinfo, fname, lineno, argc, argv );
#endif /* ENABLE_REWRITE */
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/* objectclass/attribute mapping */
} else if ( strcasecmp( argv[0], "map" ) == 0 ) {
struct ldapmap *map;
struct ldapmapping *mapping;
char *src, *dst;
if ( argc < 3 || argc > 4 ) {
fprintf( stderr,
"%s: line %d: syntax is \"map {objectclass | attribute} {<source> | *} [<dest> | *]\"\n",
fname, lineno );
return( 1 );
}
if ( strcasecmp( argv[1], "objectclass" ) == 0 ) {
map = &li->oc_map;
} else if ( strcasecmp( argv[1], "attribute" ) == 0 ) {
map = &li->at_map;
} else {
fprintf( stderr,
"%s: line %d: syntax is \"map {objectclass | attribute} {<source> | *} [<dest> | *]\"\n",
fname, lineno );
return( 1 );
}
if ( strcasecmp( argv[2], "*" ) != 0 ) {
src = argv[2];
if ( argc < 4 )
dst = "";
else if ( strcasecmp( argv[3], "*" ) == 0 )
dst = src;
else
dst = argv[3];
} else {
if ( argc < 4 ) {
map->drop_missing = 1;
return 0;
}
if ( strcasecmp( argv[3], "*" ) == 0 ) {
map->drop_missing = 0;
return 0;
}
src = argv[3];
dst = src;
}
if ( ( map == &li->at_map )
&& ( strcasecmp( src, "objectclass" ) == 0
|| strcasecmp( dst, "objectclass" ) == 0 ) )
{
fprintf( stderr,
"%s: line %d: objectclass attribute cannot be mapped\n",
fname, lineno );
}
mapping = (struct ldapmapping *)ch_calloc( 2, sizeof(struct ldapmapping) );
if ( mapping == NULL ) {
fprintf( stderr,
"%s: line %d: out of memory\n",
fname, lineno );
return( 1 );
}
mapping->src = ch_strdup(src);
mapping->dst = ch_strdup(dst);
if ( *dst != 0 ) {
mapping[1].src = mapping->dst;
mapping[1].dst = mapping->src;
} else {
mapping[1].src = mapping->src;
mapping[1].dst = mapping->dst;
}
if ( avl_find( map->map, (caddr_t)mapping, mapping_cmp ) != NULL
|| avl_find( map->remap, (caddr_t)&mapping[1], mapping_cmp ) != NULL)
{
fprintf( stderr,
"%s: line %d: duplicate mapping found (ignored)\n",
fname, lineno );
return 0;
}
avl_insert( &map->map, (caddr_t)mapping,
mapping_cmp, mapping_dup );
avl_insert( &map->remap, (caddr_t)&mapping[1],
mapping_cmp, mapping_dup );
/* anything else */
} else {
fprintf( stderr,
"%s: line %d: unknown directive \"%s\" in ldap database definition (ignored)\n",
fname, lineno, argv[0] );
}
return 0;
}
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int
mapping_cmp ( const void *c1, const void *c2 )
{
struct ldapmapping *map1 = (struct ldapmapping *)c1;
struct ldapmapping *map2 = (struct ldapmapping *)c2;
return ( strcasecmp(map1->src, map2->src) );
}
int
mapping_dup ( void *c1, void *c2 )
{
struct ldapmapping *map1 = (struct ldapmapping *)c1;
struct ldapmapping *map2 = (struct ldapmapping *)c2;
return( ( strcasecmp(map1->src, map2->src) == 0 ) ? -1 : 0 );
}
char *
ldap_back_map ( struct ldapmap *map, char *s, int remap )
{
Avlnode *tree;
struct ldapmapping *mapping, fmapping;
if (remap)
tree = map->remap;
else
tree = map->map;
fmapping.src = s;
mapping = (struct ldapmapping *)avl_find( tree, (caddr_t)&fmapping, mapping_cmp );
if (mapping != NULL) {
if ( *mapping->dst == 0 )
return(NULL);
return(mapping->dst);
}
if (map->drop_missing)
return(NULL);
return(s);
}
char *
ldap_back_map_filter(
struct ldapmap *at_map,
struct ldapmap *oc_map,
char *f,
int remap
)
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{
char *nf, *m, *p, *q, *s, c;
int len, extra, plen, in_quote;
if (f == NULL)
return(NULL);
len = strlen(f);
extra = len;
len *= 2;
nf = ch_malloc( len + 1 );
if (nf == NULL)
return(NULL);
/* this loop assumes the filter ends with one
* of the delimiter chars -- probably ')'.
*/
s = nf;
q = NULL;
in_quote = 0;
for (p = f; (c = *p); p++) {
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if (c == '"') {
in_quote = !in_quote;
if (q != NULL) {
plen = p - q;
memcpy(s, q, plen);
s += plen;
q = NULL;
}
*s++ = c;
} else if (in_quote) {
/* ignore everything in quotes --
* what about attrs in DNs?
*/
*s++ = c;
} else if (c != '(' && c != ')'
&& c != '=' && c != '>' && c != '<'
&& c != '|' && c != '&')
{
if (q == NULL)
q = p;
} else {
if (q != NULL) {
*p = 0;
m = ldap_back_map(at_map, q, remap);
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if (m == NULL)
m = ldap_back_map(oc_map, q, remap);
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if (m == NULL) {
m = q;
}
extra += p - q;
plen = strlen(m);
extra -= plen;
if (extra < 0) {
while (extra < 0) {
extra += len;
len *= 2;
}
s -= (long)nf;
nf = ch_realloc(nf, len + 1);
if (nf == NULL) {
free(nf);
return(NULL);
}
s += (long)nf;
}
memcpy(s, m, plen);
s += plen;
*p = c;
q = NULL;
}
*s++ = c;
}
}
*s = 0;
return(nf);
}
char **
ldap_back_map_attrs(
struct ldapmap *at_map,
char **a,
int remap
)
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{
int i, j, count;
char **na, *mapped;
if (a == NULL)
return(NULL);
for (count = 0; a[count] != NULL; count++) {
/* */
}
na = (char **)ch_calloc( count + 1, sizeof(char *) );
if (na == NULL)
return(NULL);
for (i = 0, j = 0; i < count; i++) {
mapped = ldap_back_map(at_map, a[i], remap);
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if (mapped != NULL) {
mapped = ch_strdup(mapped);
if (mapped == NULL) {
charray_free(na);
return(NULL);
}
na[j] = mapped;
j++;
}
}
return(na);
}
#ifdef ENABLE_REWRITE
static char *
suffix_massage_regexize( const char *s )
{
char *res, *p, *r;
int i;
for ( i = 0, p = ( char * )s;
( r = strchr( p, ',' ) ) != NULL;
p = r + 1, i++ )
;
res = ch_calloc( sizeof( char ), strlen( s ) + 4 + 4*i + 1 );
strcpy( res, "(.*)" );
for ( i = 0, p = ( char * )s;
( r = strchr( p, ',' ) ) != NULL;
p = r + 1 , i++ ) {
strncat( res, p, r - p + 1 );
strcat( res, "[ ]?" );
if ( r[ 1 ] == ' ' ) {
r++;
}
}
strcat( res, p );
return res;
}
static char *
suffix_massage_patternize( const char *s, int normalize )
{
char *res;
res = ch_calloc( sizeof( char ), strlen( s ) + 3 );
sprintf( res, "%%1%s", s );
if ( normalize ) {
char *out = dn_normalize( res + 2 );
if ( out != res + 2 ) {
strcpy( res + 2, out );
free( out );
}
}
return res;
}
int
suffix_massage_config(
struct rewrite_info *info,
int argc,
char **argv
)
{
char *rargv[ 5 ];
rargv[ 0 ] = "rewriteEngine";
rargv[ 1 ] = "on";
rargv[ 2 ] = NULL;
rewrite_parse( info, "<suffix massage>", 1, 2, rargv );
rargv[ 0 ] = "rewriteContext";
rargv[ 1 ] = "default";
rargv[ 2 ] = NULL;
rewrite_parse( info, "<suffix massage>", 2, 2, rargv );
rargv[ 0 ] = "rewriteRule";
rargv[ 1 ] = suffix_massage_regexize( argv[ 1 ] );
rargv[ 2 ] = suffix_massage_patternize( argv[ 2 ], 0 );
rargv[ 3 ] = ":";
rargv[ 4 ] = NULL;
rewrite_parse( info, "<suffix massage>", 3, 4, rargv );
ch_free( rargv[ 1 ] );
ch_free( rargv[ 2 ] );
rargv[ 0 ] = "rewriteContext";
rargv[ 1 ] = "searchResult";
rargv[ 2 ] = NULL;
rewrite_parse( info, "<suffix massage>", 4, 2, rargv );
rargv[ 0 ] = "rewriteRule";
rargv[ 1 ] = suffix_massage_regexize( argv[ 2 ] );
rargv[ 2 ] = suffix_massage_patternize( argv[ 1 ], 0 );
rargv[ 3 ] = ":";
rargv[ 4 ] = NULL;
rewrite_parse( info, "<suffix massage>", 5, 4, rargv );
ch_free( rargv[ 1 ] );
ch_free( rargv[ 2 ] );
/*
* the filter should be rewritten as
*
* rewriteRule
* "(.*)member=([^)]+),o=Foo Bar,[ ]?c=US(.*)"
* "%1member=%2,dc=example,dc=com%3"
*
* where "o=Foo Bar, c=US" is the virtual naming context,
* and "dc=example, dc=com" is the real naming context
*/
rargv[ 0 ] = "rewriteContext";
rargv[ 1 ] = "searchFilter";
rargv[ 2 ] = NULL;
rewrite_parse( info, "<suffix massage>", 6, 2, rargv );
#if 0 /* matched is not normalized */
rargv[ 0 ] = "rewriteContext";
rargv[ 1 ] = "matchedDn";
rargv[ 2 ] = "alias";
rargv[ 3 ] = "searchResult";
rargv[ 4 ] = NULL;
rewrite_parse( info, "<suffix massage>", 7, 4, rargv );
#else /* normalize matched */
rargv[ 0 ] = "rewriteContext";
rargv[ 1 ] = "matchedDn";
rargv[ 2 ] = NULL;
rewrite_parse( info, "<suffix massage>", 7, 2, rargv );
rargv[ 0 ] = "rewriteRule";
rargv[ 1 ] = suffix_massage_regexize( argv[ 2 ] );
rargv[ 2 ] = suffix_massage_patternize( argv[ 1 ], 1 );
rargv[ 3 ] = ":";
rargv[ 4 ] = NULL;
rewrite_parse( info, "<suffix massage>", 8, 4, rargv );
ch_free( rargv[ 1 ] );
ch_free( rargv[ 2 ] );
#endif /* normalize matched */
return 0;
}
#endif /* ENABLE_REWRITE */