summaryrefslogtreecommitdiffstats
path: root/modules/ldap/util_ldap_cache.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--modules/ldap/util_ldap_cache.c467
1 files changed, 467 insertions, 0 deletions
diff --git a/modules/ldap/util_ldap_cache.c b/modules/ldap/util_ldap_cache.c
new file mode 100644
index 0000000..774a76e
--- /dev/null
+++ b/modules/ldap/util_ldap_cache.c
@@ -0,0 +1,467 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * util_ldap_cache.c: LDAP cache things
+ *
+ * Original code from auth_ldap module for Apache v1.3:
+ * Copyright 1998, 1999 Enbridge Pipelines Inc.
+ * Copyright 1999-2001 Dave Carrigan
+ */
+
+#include "httpd.h"
+#include "util_ldap.h"
+#include "util_ldap_cache.h"
+#include <apr_strings.h>
+
+#if APR_HAS_LDAP
+
+/* ------------------------------------------------------------------ */
+
+unsigned long util_ldap_url_node_hash(void *n)
+{
+ util_url_node_t *node = n;
+ return util_ald_hash_string(1, node->url);
+}
+
+int util_ldap_url_node_compare(void *a, void *b)
+{
+ util_url_node_t *na = a;
+ util_url_node_t *nb = b;
+
+ return (strcmp(na->url, nb->url) == 0);
+}
+
+void *util_ldap_url_node_copy(util_ald_cache_t *cache, void *c)
+{
+ util_url_node_t *n = c;
+ util_url_node_t *node = util_ald_alloc(cache, sizeof *node);
+
+ if (node) {
+ if (!(node->url = util_ald_strdup(cache, n->url))) {
+ util_ald_free(cache, node);
+ return NULL;
+ }
+ node->search_cache = n->search_cache;
+ node->compare_cache = n->compare_cache;
+ node->dn_compare_cache = n->dn_compare_cache;
+ return node;
+ }
+ else {
+ return NULL;
+ }
+}
+
+void util_ldap_url_node_free(util_ald_cache_t *cache, void *n)
+{
+ util_url_node_t *node = n;
+
+ util_ald_free(cache, node->url);
+ util_ald_destroy_cache(node->search_cache);
+ util_ald_destroy_cache(node->compare_cache);
+ util_ald_destroy_cache(node->dn_compare_cache);
+ util_ald_free(cache, node);
+}
+
+void util_ldap_url_node_display(request_rec *r, util_ald_cache_t *cache, void *n)
+{
+ util_url_node_t *node = n;
+ char date_str[APR_CTIME_LEN];
+ const char *type_str;
+ util_ald_cache_t *cache_node;
+ int x;
+
+ for (x=0;x<3;x++) {
+ switch (x) {
+ case 0:
+ cache_node = node->search_cache;
+ type_str = "Searches";
+ break;
+ case 1:
+ cache_node = node->compare_cache;
+ type_str = "Compares";
+ break;
+ case 2:
+ default:
+ cache_node = node->dn_compare_cache;
+ type_str = "DN Compares";
+ break;
+ }
+
+ if (cache_node->marktime) {
+ apr_ctime(date_str, cache_node->marktime);
+ }
+ else
+ date_str[0] = 0;
+
+ ap_rprintf(r,
+ "<tr valign='top'>"
+ "<td nowrap>%s (%s)</td>"
+ "<td nowrap>%ld</td>"
+ "<td nowrap>%ld</td>"
+ "<td nowrap>%ld</td>"
+ "<td nowrap>%" APR_TIME_T_FMT "</td>"
+ "<td nowrap>%ld</td>"
+ "<td nowrap>%s</td>"
+ "</tr>",
+ node->url,
+ type_str,
+ cache_node->size,
+ cache_node->maxentries,
+ cache_node->numentries,
+ apr_time_sec(cache_node->ttl),
+ cache_node->fullmark,
+ date_str);
+ }
+
+}
+
+/* ------------------------------------------------------------------ */
+
+/* Cache functions for search nodes */
+unsigned long util_ldap_search_node_hash(void *n)
+{
+ util_search_node_t *node = n;
+ return util_ald_hash_string(1, node->username);
+}
+
+int util_ldap_search_node_compare(void *a, void *b)
+{
+ util_search_node_t *na = a;
+ util_search_node_t *nb = b;
+
+ return (strcmp(na->username, nb->username) == 0);
+}
+
+void *util_ldap_search_node_copy(util_ald_cache_t *cache, void *c)
+{
+ util_search_node_t *node = c;
+ util_search_node_t *newnode = util_ald_alloc(cache, sizeof *newnode);
+
+ /* safety check */
+ if (newnode) {
+
+ /* copy vals */
+ if (node->vals) {
+ int k = node->numvals;
+ int i = 0;
+ if (!(newnode->vals = util_ald_alloc(cache, sizeof(char *) * (k+1)))) {
+ util_ldap_search_node_free(cache, newnode);
+ return NULL;
+ }
+ newnode->numvals = node->numvals;
+ for (;k;k--) {
+ if (node->vals[i]) {
+ if (!(newnode->vals[i] = util_ald_strdup(cache, node->vals[i]))) {
+ util_ldap_search_node_free(cache, newnode);
+ return NULL;
+ }
+ }
+ else
+ newnode->vals[i] = NULL;
+ i++;
+ }
+ }
+ else {
+ newnode->vals = NULL;
+ }
+ if (!(newnode->username = util_ald_strdup(cache, node->username)) ||
+ !(newnode->dn = util_ald_strdup(cache, node->dn)) ) {
+ util_ldap_search_node_free(cache, newnode);
+ return NULL;
+ }
+ if (node->bindpw) {
+ if (!(newnode->bindpw = util_ald_strdup(cache, node->bindpw))) {
+ util_ldap_search_node_free(cache, newnode);
+ return NULL;
+ }
+ } else {
+ newnode->bindpw = NULL;
+ }
+ newnode->lastbind = node->lastbind;
+
+ }
+ return (void *)newnode;
+}
+
+void util_ldap_search_node_free(util_ald_cache_t *cache, void *n)
+{
+ int i = 0;
+ util_search_node_t *node = n;
+ int k = node->numvals;
+
+ if (node->vals) {
+ for (;k;k--,i++) {
+ if (node->vals[i]) {
+ util_ald_free(cache, node->vals[i]);
+ }
+ }
+ util_ald_free(cache, node->vals);
+ }
+ util_ald_free(cache, node->username);
+ util_ald_free(cache, node->dn);
+ util_ald_free(cache, node->bindpw);
+ util_ald_free(cache, node);
+}
+
+void util_ldap_search_node_display(request_rec *r, util_ald_cache_t *cache, void *n)
+{
+ util_search_node_t *node = n;
+ char date_str[APR_CTIME_LEN];
+
+ apr_ctime(date_str, node->lastbind);
+
+ ap_rprintf(r,
+ "<tr valign='top'>"
+ "<td nowrap>%s</td>"
+ "<td nowrap>%s</td>"
+ "<td nowrap>%s</td>"
+ "</tr>",
+ node->username,
+ node->dn,
+ date_str);
+}
+
+/* ------------------------------------------------------------------ */
+
+unsigned long util_ldap_compare_node_hash(void *n)
+{
+ util_compare_node_t *node = n;
+ return util_ald_hash_string(3, node->dn, node->attrib, node->value);
+}
+
+int util_ldap_compare_node_compare(void *a, void *b)
+{
+ util_compare_node_t *na = a;
+ util_compare_node_t *nb = b;
+
+ return (strcmp(na->dn, nb->dn) == 0 &&
+ strcmp(na->attrib, nb->attrib) == 0 &&
+ strcmp(na->value, nb->value) == 0);
+}
+
+void *util_ldap_compare_node_copy(util_ald_cache_t *cache, void *c)
+{
+ util_compare_node_t *n = c;
+ util_compare_node_t *node = util_ald_alloc(cache, sizeof *node);
+
+ if (node) {
+ if (!(node->dn = util_ald_strdup(cache, n->dn)) ||
+ !(node->attrib = util_ald_strdup(cache, n->attrib)) ||
+ !(node->value = util_ald_strdup(cache, n->value)) ||
+ ((n->subgroupList) && !(node->subgroupList = util_ald_sgl_dup(cache, n->subgroupList)))) {
+ util_ldap_compare_node_free(cache, node);
+ return NULL;
+ }
+ node->lastcompare = n->lastcompare;
+ node->result = n->result;
+ node->sgl_processed = n->sgl_processed;
+ return node;
+ }
+ else {
+ return NULL;
+ }
+}
+
+void util_ldap_compare_node_free(util_ald_cache_t *cache, void *n)
+{
+ util_compare_node_t *node = n;
+
+ util_ald_sgl_free(cache, &(node->subgroupList));
+ util_ald_free(cache, node->dn);
+ util_ald_free(cache, node->attrib);
+ util_ald_free(cache, node->value);
+ util_ald_free(cache, node);
+}
+
+void util_ldap_compare_node_display(request_rec *r, util_ald_cache_t *cache, void *n)
+{
+ util_compare_node_t *node = n;
+ char date_str[APR_CTIME_LEN];
+ char *cmp_result;
+ char *sub_groups_val;
+ char *sub_groups_checked;
+
+ apr_ctime(date_str, node->lastcompare);
+
+ if (node->result == LDAP_COMPARE_TRUE) {
+ cmp_result = "LDAP_COMPARE_TRUE";
+ }
+ else if (node->result == LDAP_COMPARE_FALSE) {
+ cmp_result = "LDAP_COMPARE_FALSE";
+ }
+ else {
+ cmp_result = apr_itoa(r->pool, node->result);
+ }
+
+ if (node->subgroupList) {
+ sub_groups_val = "Yes";
+ }
+ else {
+ sub_groups_val = "No";
+ }
+
+ if (node->sgl_processed) {
+ sub_groups_checked = "Yes";
+ }
+ else {
+ sub_groups_checked = "No";
+ }
+
+ ap_rprintf(r,
+ "<tr valign='top'>"
+ "<td nowrap>%s</td>"
+ "<td nowrap>%s</td>"
+ "<td nowrap>%s</td>"
+ "<td nowrap>%s</td>"
+ "<td nowrap>%s</td>"
+ "<td nowrap>%s</td>"
+ "<td nowrap>%s</td>"
+ "</tr>",
+ node->dn,
+ node->attrib,
+ node->value,
+ date_str,
+ cmp_result,
+ sub_groups_val,
+ sub_groups_checked);
+}
+
+/* ------------------------------------------------------------------ */
+
+unsigned long util_ldap_dn_compare_node_hash(void *n)
+{
+ util_dn_compare_node_t *node = n;
+ return util_ald_hash_string(1, node->reqdn);
+}
+
+int util_ldap_dn_compare_node_compare(void *a, void *b)
+{
+ util_dn_compare_node_t *na = a;
+ util_dn_compare_node_t *nb = b;
+
+ return (strcmp(na->reqdn, nb->reqdn) == 0);
+}
+
+void *util_ldap_dn_compare_node_copy(util_ald_cache_t *cache, void *c)
+{
+ util_dn_compare_node_t *n = c;
+ util_dn_compare_node_t *node = util_ald_alloc(cache, sizeof *node);
+
+ if (node) {
+ if (!(node->reqdn = util_ald_strdup(cache, n->reqdn)) ||
+ !(node->dn = util_ald_strdup(cache, n->dn))) {
+ util_ldap_dn_compare_node_free(cache, node);
+ return NULL;
+ }
+ return node;
+ }
+ else {
+ return NULL;
+ }
+}
+
+void util_ldap_dn_compare_node_free(util_ald_cache_t *cache, void *n)
+{
+ util_dn_compare_node_t *node = n;
+ util_ald_free(cache, node->reqdn);
+ util_ald_free(cache, node->dn);
+ util_ald_free(cache, node);
+}
+
+void util_ldap_dn_compare_node_display(request_rec *r, util_ald_cache_t *cache, void *n)
+{
+ util_dn_compare_node_t *node = n;
+
+ ap_rprintf(r,
+ "<tr valign='top'>"
+ "<td nowrap>%s</td>"
+ "<td nowrap>%s</td>"
+ "</tr>",
+ node->reqdn,
+ node->dn);
+}
+
+
+/* ------------------------------------------------------------------ */
+static apr_status_t util_ldap_cache_module_kill(void *data)
+{
+ util_ldap_state_t *st = data;
+
+ util_ald_destroy_cache(st->util_ldap_cache);
+#if APR_HAS_SHARED_MEMORY
+ if (st->cache_rmm != NULL) {
+ apr_rmm_destroy (st->cache_rmm);
+ st->cache_rmm = NULL;
+ }
+ if (st->cache_shm != NULL) {
+ apr_status_t result = apr_shm_destroy(st->cache_shm);
+ st->cache_shm = NULL;
+ return result;
+ }
+#endif
+ return APR_SUCCESS;
+}
+
+apr_status_t util_ldap_cache_init(apr_pool_t *pool, util_ldap_state_t *st)
+{
+#if APR_HAS_SHARED_MEMORY
+ apr_status_t result;
+ apr_size_t size;
+
+ if (st->cache_bytes > 0) {
+ if (st->cache_file) {
+ /* Remove any existing shm segment with this name. */
+ apr_shm_remove(st->cache_file, st->pool);
+ }
+
+ size = APR_ALIGN_DEFAULT(st->cache_bytes);
+
+ result = apr_shm_create(&st->cache_shm, size, st->cache_file, st->pool);
+ if (result != APR_SUCCESS) {
+ return result;
+ }
+
+ /* Determine the usable size of the shm segment. */
+ size = apr_shm_size_get(st->cache_shm);
+
+ /* This will create a rmm "handler" to get into the shared memory area */
+ result = apr_rmm_init(&st->cache_rmm, NULL,
+ apr_shm_baseaddr_get(st->cache_shm), size,
+ st->pool);
+ if (result != APR_SUCCESS) {
+ return result;
+ }
+ }
+
+#endif
+
+ apr_pool_cleanup_register(st->pool, st , util_ldap_cache_module_kill, apr_pool_cleanup_null);
+
+ st->util_ldap_cache =
+ util_ald_create_cache(st,
+ st->search_cache_size,
+ st->search_cache_ttl,
+ util_ldap_url_node_hash,
+ util_ldap_url_node_compare,
+ util_ldap_url_node_copy,
+ util_ldap_url_node_free,
+ util_ldap_url_node_display);
+ return APR_SUCCESS;
+}
+
+
+#endif /* APR_HAS_LDAP */