1 /*
2 * The contents of this file are subject to the Netscape Public
3 * License Version 1.1 (the "License"); you may not use this file
4 * except in compliance with the License. You may obtain a copy of
5 * the License at http://www.mozilla.org/NPL/
6 *
7 * Software distributed under the License is distributed on an "AS
8 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
9 * implied. See the License for the specific language governing
10 * rights and limitations under the License.
11 *
12 * The Original Code is Mozilla Communicator client code, released
13 * March 31, 1998.
14 *
15 * The Initial Developer of the Original Code is Netscape
16 * Communications Corporation. Portions created by Netscape are
17 * Copyright (C) 1998-1999 Netscape Communications Corporation. All
18 * Rights Reserved.
19 *
20 * Contributor(s):
21 */
22 /*
23 * Copyright (c) 1993 The Regents of the University of Michigan.
24 * All rights reserved.
25 */
26 /*
27 * cache.c - generic caching support for LDAP
28 */
29
30 #include "ldap-int.h"
31
32 /*
33 * ldap_cache_flush - flush part of the LDAP cache. returns an
34 * ldap error code (LDAP_SUCCESS, LDAP_NO_SUCH_OBJECT, etc.).
35 */
36
37 int
38 LDAP_CALL
ldap_cache_flush(LDAP * ld,const char * dn,const char * filter)39 ldap_cache_flush( LDAP *ld, const char *dn, const char *filter )
40 {
41 if ( !NSLDAPI_VALID_LDAP_POINTER( ld )) {
42 return( LDAP_PARAM_ERROR );
43 }
44
45 if ( dn == NULL ) {
46 dn = "";
47 }
48
49 return( (ld->ld_cache_flush)( ld, dn, filter ) );
50 }
51
52 /*
53 * nsldapi_add_result_to_cache - add an ldap entry we just read off the network
54 * to the ldap cache. this routine parses the ber for the entry and
55 * constructs the appropriate add request. this routine calls the
56 * cache add routine to actually add the entry.
57 */
58
59 void
nsldapi_add_result_to_cache(LDAP * ld,LDAPMessage * m)60 nsldapi_add_result_to_cache( LDAP *ld, LDAPMessage *m )
61 {
62 char *dn;
63 LDAPMod **mods;
64 int i, max, rc;
65 char *a;
66 BerElement *ber;
67 char buf[50];
68 struct berval bv;
69 struct berval *bvp[2];
70
71 LDAPDebug( LDAP_DEBUG_TRACE, "=> nsldapi_add_result_to_cache id %d type %d\n",
72 m->lm_msgid, m->lm_msgtype, 0 );
73 if ( m->lm_msgtype != LDAP_RES_SEARCH_ENTRY ||
74 ld->ld_cache_add == NULL ) {
75 LDAPDebug( LDAP_DEBUG_TRACE,
76 "<= nsldapi_add_result_to_cache not added\n", 0, 0, 0 );
77 return;
78 }
79
80 #define GRABSIZE 5
81
82 dn = ldap_get_dn( ld, m );
83 mods = (LDAPMod **)NSLDAPI_MALLOC( GRABSIZE * sizeof(LDAPMod *) );
84 if (mods == NULL) {
85 LDAPDebug( LDAP_DEBUG_TRACE,
86 "<= nsldapi_add_result_to_cache malloc failed\n", 0, 0, 0 );
87 return;
88 }
89 max = GRABSIZE;
90 for ( i = 0, a = ldap_first_attribute( ld, m, &ber ); a != NULL;
91 a = ldap_next_attribute( ld, m, ber ), i++ ) {
92 if ( i == (max - 1) ) {
93 max += GRABSIZE;
94 mods = (LDAPMod **)NSLDAPI_REALLOC( mods,
95 sizeof(LDAPMod *) * max );
96 if (mods == NULL) {
97 LDAPDebug( LDAP_DEBUG_TRACE,
98 "<= nsldapi_add_result_to_cache realloc failed\n",
99 0, 0, 0 );
100 return;
101 }
102 }
103
104 mods[i] = (LDAPMod *)NSLDAPI_CALLOC( 1, sizeof(LDAPMod) );
105 if (mods[i] == NULL) {
106 LDAPDebug( LDAP_DEBUG_TRACE,
107 "<= nsldapi_add_result_to_cache calloc failed\n",
108 0, 0, 0 );
109 ldap_mods_free( mods, 1 );
110 return;
111 }
112 mods[i]->mod_op = LDAP_MOD_BVALUES;
113 mods[i]->mod_type = a;
114 mods[i]->mod_bvalues = ldap_get_values_len( ld, m, a );
115 }
116 if ( ber != NULL ) {
117 ber_free( ber, 0 );
118 }
119 if (( rc = LDAP_GET_LDERRNO( ld, NULL, NULL )) != LDAP_SUCCESS ) {
120 LDAPDebug( LDAP_DEBUG_TRACE,
121 "<= nsldapi_add_result_to_cache error: failed to construct mod list (%s)\n",
122 ldap_err2string( rc ), 0, 0 );
123 ldap_mods_free( mods, 1 );
124 return;
125 }
126
127 /* update special cachedtime attribute */
128 if ( i == (max - 1) ) {
129 max++;
130 mods = (LDAPMod **)NSLDAPI_REALLOC( mods,
131 sizeof(LDAPMod *) * max );
132 if (mods == NULL) {
133 LDAPDebug( LDAP_DEBUG_TRACE,
134 "<= nsldapi_add_result_to_cache calloc failed\n",
135 0, 0, 0 );
136 ldap_mods_free( mods, 1 );
137 return;
138 }
139 }
140 mods[i] = (LDAPMod *)NSLDAPI_CALLOC( 1, sizeof(LDAPMod) );
141 if (mods[i] == NULL) {
142 LDAPDebug( LDAP_DEBUG_TRACE,
143 "<= nsldapi_add_result_to_cache calloc failed\n",
144 0, 0, 0 );
145 ldap_mods_free( mods, 1 );
146 return;
147 }
148 mods[i]->mod_op = LDAP_MOD_BVALUES;
149 mods[i]->mod_type = "cachedtime";
150 sprintf( buf, "%d", time( NULL ) );
151 bv.bv_val = buf;
152 bv.bv_len = strlen( buf );
153 bvp[0] = &bv;
154 bvp[1] = NULL;
155 mods[i]->mod_bvalues = bvp;
156 mods[++i] = NULL;
157
158 /* msgid of -1 means don't send the result */
159 rc = (ld->ld_cache_add)( ld, -1, m->lm_msgtype, dn, mods );
160 LDAPDebug( LDAP_DEBUG_TRACE,
161 "<= nsldapi_add_result_to_cache added (rc %d)\n", rc, 0, 0 );
162 }
163