267 lines
6.4 KiB
C
267 lines
6.4 KiB
C
/*
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* Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
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* Copyright (C) 2003 Match Grun
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/*
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* Some utility functions to access LDAP servers.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef USE_LDAP
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#include <glib.h>
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#include <string.h>
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#include <sys/time.h>
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#include <ldap.h>
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#include <lber.h>
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#define SYLDAP_TEST_FILTER "(objectclass=*)"
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#define SYLDAP_SEARCHBASE_V2 "cn=config"
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#define SYLDAP_SEARCHBASE_V3 ""
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#define SYLDAP_V2_TEST_ATTR "database"
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#define SYLDAP_V3_TEST_ATTR "namingcontexts"
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/**
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* Attempt to discover the base DN for a server using LDAP version 3.
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* \param ld LDAP handle for a connected server.
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* \param tov Timeout value (seconds), or 0 for none, default 30 secs.
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* \return List of Base DN's, or NULL if could not read. List should be
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* g_free() when done.
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*/
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static GList *ldaputil_test_v3( LDAP *ld, gint tov ) {
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GList *baseDN = NULL;
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gint rc, i;
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LDAPMessage *result, *e;
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gchar *attribs[2];
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BerElement *ber;
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gchar *attribute;
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gchar **vals;
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struct timeval timeout;
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/* Set timeout */
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timeout.tv_usec = 0L;
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if( tov > 0 ) {
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timeout.tv_sec = tov;
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}
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else {
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timeout.tv_sec = 30L;
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}
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/* Test for LDAP version 3 */
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attribs[0] = SYLDAP_V3_TEST_ATTR;
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attribs[1] = NULL;
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rc = ldap_search_ext_s(
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ld, SYLDAP_SEARCHBASE_V3, LDAP_SCOPE_BASE, SYLDAP_TEST_FILTER,
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attribs, 0, NULL, NULL, &timeout, 0, &result );
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if( rc == LDAP_SUCCESS ) {
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/* Process entries */
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for( e = ldap_first_entry( ld, result );
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e != NULL;
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e = ldap_next_entry( ld, e ) )
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{
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/* Process attributes */
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for( attribute = ldap_first_attribute( ld, e, &ber );
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attribute != NULL;
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attribute = ldap_next_attribute( ld, e, ber ) )
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{
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if( strcasecmp(
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attribute, SYLDAP_V3_TEST_ATTR ) == 0 )
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{
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vals = ldap_get_values( ld, e, attribute );
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if( vals != NULL ) {
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for( i = 0; vals[i] != NULL; i++ ) {
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baseDN = g_list_append(
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baseDN, g_strdup( vals[i] ) );
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}
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}
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ldap_value_free( vals );
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}
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ldap_memfree( attribute );
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}
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if( ber != NULL ) {
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ber_free( ber, 0 );
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}
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ber = NULL;
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}
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}
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ldap_msgfree( result );
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return baseDN;
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}
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/**
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* Attempt to discover the base DN for a server using LDAP version 2.
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* \param ld LDAP handle for a connected server.
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* \param tov Timeout value (seconds), or 0 for none, default 30 secs.
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* \return List of Base DN's, or NULL if could not read. List should be
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* g_free() when done.
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*/
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static GList *ldaputil_test_v2( LDAP *ld, gint tov ) {
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GList *baseDN = NULL;
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gint rc, i;
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LDAPMessage *result, *e;
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gchar *attribs[1];
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BerElement *ber;
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gchar *attribute;
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gchar **vals;
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struct timeval timeout;
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/* Set timeout */
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timeout.tv_usec = 0L;
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if( tov > 0 ) {
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timeout.tv_sec = tov;
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}
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else {
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timeout.tv_sec = 30L;
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}
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attribs[0] = NULL;
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rc = ldap_search_ext_s(
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ld, SYLDAP_SEARCHBASE_V2, LDAP_SCOPE_BASE, SYLDAP_TEST_FILTER,
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attribs, 0, NULL, NULL, &timeout, 0, &result );
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if( rc == LDAP_SUCCESS ) {
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/* Process entries */
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for( e = ldap_first_entry( ld, result );
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e != NULL;
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e = ldap_next_entry( ld, e ) )
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{
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/* Process attributes */
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for( attribute = ldap_first_attribute( ld, e, &ber );
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attribute != NULL;
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attribute = ldap_next_attribute( ld, e, ber ) )
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{
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if( strcasecmp(
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attribute,
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SYLDAP_V2_TEST_ATTR ) == 0 ) {
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vals = ldap_get_values( ld, e, attribute );
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if( vals != NULL ) {
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for( i = 0; vals[i] != NULL; i++ ) {
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char *ch;
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/*
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* Strip the 'ldb:' from the
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* front of the value.
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*/
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ch = ( char * ) strchr( vals[i], ':' );
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if( ch ) {
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gchar *bn = g_strdup( ++ch );
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g_strchomp( bn );
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g_strchug( bn );
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baseDN = g_list_append(
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baseDN, g_strdup( bn ) );
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g_free( bn );
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}
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}
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}
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ldap_value_free( vals );
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}
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ldap_memfree( attribute );
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}
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if( ber != NULL ) {
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ber_free( ber, 0 );
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}
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ber = NULL;
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}
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}
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ldap_msgfree( result );
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return baseDN;
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}
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/**
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* Attempt to discover the base DN for the server.
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* \param host Host name.
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* \param port Port number.
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* \param bindDN Bind DN (optional).
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* \param bindPW Bind PW (optional).
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* \param tov Timeout value (seconds), or 0 for none, default 30 secs.
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* \return List of Base DN's, or NULL if could not read. This list should be
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* g_free() when done.
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*/
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GList *ldaputil_read_basedn(
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const gchar *host, const gint port, const gchar *bindDN,
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const gchar *bindPW, const gint tov )
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{
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GList *baseDN = NULL;
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LDAP *ld;
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gint rc;
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if( host == NULL ) return baseDN;
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if( port < 1 ) return baseDN;
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/* Connect to server. */
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if( ( ld = ldap_init( host, port ) ) == NULL ) {
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return baseDN;
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}
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/* Bind to the server, if required */
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if( bindDN ) {
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if( *bindDN != '\0' ) {
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rc = ldap_simple_bind_s( ld, bindDN, bindPW );
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if( rc != LDAP_SUCCESS ) {
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ldap_unbind( ld );
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return baseDN;
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}
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}
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}
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/* Test for LDAP version 3 */
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baseDN = ldaputil_test_v3( ld, tov );
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if( baseDN == NULL ) {
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baseDN = ldaputil_test_v2( ld, tov );
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}
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ldap_unbind( ld );
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return baseDN;
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}
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/**
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* Attempt to connect to the server.
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* Enter:
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* \param host Host name.
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* \param port Port number.
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* \return <i>TRUE</i> if connected successfully.
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*/
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gboolean ldaputil_test_connect( const gchar *host, const gint port ) {
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gboolean retVal = FALSE;
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LDAP *ld;
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if( host == NULL ) return retVal;
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if( port < 1 ) return retVal;
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ld = ldap_open( host, port );
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if( ld != NULL ) {
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ldap_unbind( ld );
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retVal = TRUE;
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}
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return retVal;
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}
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/**
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* Test whether LDAP libraries installed.
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* Return: TRUE if library available.
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*/
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gboolean ldaputil_test_ldap_lib( void ) {
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return TRUE;
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}
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#endif /* USE_LDAP */
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/*
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* End of Source.
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*/
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