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259 lines
8.7 KiB
C
259 lines
8.7 KiB
C
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code, released
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* March 31, 1998.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998-1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/* vlistctrl.c - virtual list control implementation. */
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#include "ldap-int.h"
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/*
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* function to create a VirtualListViewRequest control that can be passed
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* to ldap_search_ext() or ldap_search_ext_s(). *ctrlp will be set to a
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* freshly allocated LDAPControl structure. Returns an LDAP error code
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* (LDAP_SUCCESS if all goes well).
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*
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* Parameters
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* ld LDAP pointer to the desired connection
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*
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* ldvlistp the control structure.
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*
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* ctrlp the address of a place to put the constructed control
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The controlValue is an OCTET STRING
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whose value is the BER-encoding of the following SEQUENCE:
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VirtualListViewRequest ::= SEQUENCE {
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beforeCount INTEGER (0 .. maxInt),
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afterCount INTEGER (0 .. maxInt),
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CHOICE {
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byIndex [0] SEQUENCE {
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index INTEGER (0 .. maxInt),
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contentCount INTEGER (0 .. maxInt) }
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byValue [1] greaterThanOrEqual assertionValue }
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beforeCount indicates how many entries before the target entry the
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client wants the server to send. afterCount indicates the number of
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entries after the target entry the client wants the server to send.
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index and contentCount identify the target entry
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greaterThanOrEqual is an attribute assertion value defined in
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[LDAPv3]. If present, the value supplied in greaterThanOrEqual is used
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to determine the target entry by comparison with the values of the
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attribute specified as the primary sort key. The first list entry who's
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value is no less than the supplied value is the target entry.
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*/
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int
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LDAP_CALL
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ldap_create_virtuallist_control(
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LDAP *ld,
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LDAPVirtualList *ldvlistp,
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LDAPControl **ctrlp
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)
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{
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BerElement *ber;
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int rc;
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if (!NSLDAPI_VALID_LDAP_POINTER( ld )) {
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return( LDAP_PARAM_ERROR );
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}
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if ( NULL == ctrlp || NULL == ldvlistp ) {
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LDAP_SET_LDERRNO( ld, LDAP_PARAM_ERROR, NULL, NULL );
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return ( LDAP_PARAM_ERROR );
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}
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/* create a ber package to hold the controlValue */
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if ( LDAP_SUCCESS != nsldapi_alloc_ber_with_options( ld, &ber ) )
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{
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LDAP_SET_LDERRNO( ld, LDAP_NO_MEMORY, NULL, NULL );
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return( LDAP_NO_MEMORY );
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}
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if ( LBER_ERROR == ber_printf( ber,
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"{ii",
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(int)ldvlistp->ldvlist_before_count,
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(int)ldvlistp->ldvlist_after_count ))
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/* XXX lossy casts */
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{
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LDAP_SET_LDERRNO( ld, LDAP_ENCODING_ERROR, NULL, NULL );
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ber_free( ber, 1 );
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return( LDAP_ENCODING_ERROR );
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}
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if (NULL == ldvlistp->ldvlist_attrvalue)
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{
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if ( LBER_ERROR == ber_printf( ber,
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"t{ii}}",
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LDAP_TAG_VLV_BY_INDEX,
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(int)ldvlistp->ldvlist_index,
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(int)ldvlistp->ldvlist_size ) )
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/* XXX lossy casts */
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{
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LDAP_SET_LDERRNO( ld, LDAP_ENCODING_ERROR, NULL, NULL );
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ber_free( ber, 1 );
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return( LDAP_ENCODING_ERROR );
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}
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}
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else
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{
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if ( LBER_ERROR == ber_printf( ber,
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"to}",
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LDAP_TAG_VLV_BY_VALUE,
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ldvlistp->ldvlist_attrvalue,
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(int)strlen( ldvlistp->ldvlist_attrvalue )) ) {
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LDAP_SET_LDERRNO( ld, LDAP_ENCODING_ERROR, NULL, NULL );
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ber_free( ber, 1 );
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return( LDAP_ENCODING_ERROR );
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}
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}
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rc = nsldapi_build_control( LDAP_CONTROL_VLVREQUEST ,
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ber,
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1,
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1,
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ctrlp );
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LDAP_SET_LDERRNO( ld, rc, NULL, NULL );
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return( rc );
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}
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/*
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* function to find and parse a VirtualListViewResponse control contained in
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* "ctrls" *target_posp, *list_sizep, and *errcodep are set based on its
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* contents. Returns an LDAP error code that indicates whether the parsing
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* itself was successful (LDAP_SUCCESS if all goes well).
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The controlValue is an OCTET STRING, whose value
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is the BER encoding of a value of the following SEQUENCE:
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VirtualListViewResponse ::= SEQUENCE {
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targetPosition INTEGER (0 .. maxInt),
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contentCount INTEGER (0 .. maxInt),
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virtualListViewResult ENUMERATED {
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success (0),
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operatonsError (1),
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unwillingToPerform (53),
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insufficientAccessRights (50),
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busy (51),
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timeLimitExceeded (3),
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adminLimitExceeded (11),
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sortControlMissing (60),
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indexRangeError (61),
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other (80) } }
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*/
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int
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LDAP_CALL
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ldap_parse_virtuallist_control
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(
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LDAP *ld,
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LDAPControl **ctrls,
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unsigned long *target_posp,
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unsigned long *list_sizep,
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int *errcodep
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)
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{
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BerElement *ber;
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int i, foundListControl, errcode;
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LDAPControl *listCtrlp;
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unsigned long target_pos, list_size;
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if ( !NSLDAPI_VALID_LDAP_POINTER( ld )) {
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return( LDAP_PARAM_ERROR );
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}
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/* only ldapv3 or higher can do virtual lists. */
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if ( NSLDAPI_LDAP_VERSION( ld ) < LDAP_VERSION3 ) {
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LDAP_SET_LDERRNO( ld, LDAP_NOT_SUPPORTED, NULL, NULL );
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return( LDAP_NOT_SUPPORTED );
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}
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/* find the listControl in the list of controls if it exists */
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if ( ctrls == NULL ) {
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LDAP_SET_LDERRNO( ld, LDAP_CONTROL_NOT_FOUND, NULL, NULL );
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return ( LDAP_CONTROL_NOT_FOUND );
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}
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foundListControl = 0;
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for ( i = 0; (( ctrls[i] != NULL ) && ( !foundListControl )); i++ ) {
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foundListControl = !strcmp( ctrls[i]->ldctl_oid,
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LDAP_CONTROL_VLVRESPONSE );
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}
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if ( !foundListControl ) {
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LDAP_SET_LDERRNO( ld, LDAP_CONTROL_NOT_FOUND, NULL, NULL );
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return ( LDAP_CONTROL_NOT_FOUND );
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} else {
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/* let local var point to the listControl */
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listCtrlp = ctrls[i-1];
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}
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/* allocate a Ber element with the contents of the list_control's struct berval */
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if ( ( ber = ber_init( &listCtrlp->ldctl_value ) ) == NULL ) {
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LDAP_SET_LDERRNO( ld, LDAP_NO_MEMORY, NULL, NULL );
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return( LDAP_NO_MEMORY );
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}
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/* decode the result from the Berelement */
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if ( LBER_ERROR == ber_scanf( ber, "{iie}", &target_pos, &list_size,
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&errcode ) ) {
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LDAP_SET_LDERRNO( ld, LDAP_DECODING_ERROR, NULL, NULL );
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ber_free( ber, 1 );
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return( LDAP_DECODING_ERROR );
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}
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if ( target_posp != NULL ) {
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*target_posp = target_pos;
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}
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if ( list_sizep != NULL ) {
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*list_sizep = list_size;
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}
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if ( errcodep != NULL ) {
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*errcodep = errcode;
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}
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/* the ber encoding is no longer needed */
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ber_free(ber,1);
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return(LDAP_SUCCESS);
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}
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