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/* 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.
*/
#include "apr_pools.h"
#include "apr_hash.h"
#include "apr_tables.h"
#include "apr_strings.h"
#include "ap_provider.h"
static apr_hash_t *global_providers = NULL;
static apr_hash_t *global_providers_names = NULL;
static apr_status_t cleanup_global_providers(void *ctx)
{
global_providers = NULL;
global_providers_names = NULL;
return APR_SUCCESS;
}
AP_DECLARE(apr_status_t) ap_register_provider(apr_pool_t *pool,
const char *provider_group,
const char *provider_name,
const char *provider_version,
const void *provider)
{
apr_hash_t *provider_group_hash, *provider_version_hash;
if (global_providers == NULL) {
global_providers = apr_hash_make(pool);
global_providers_names = apr_hash_make(pool);
apr_pool_cleanup_register(pool, NULL, cleanup_global_providers,
apr_pool_cleanup_null);
}
/* First, deal with storing the provider away */
provider_group_hash = apr_hash_get(global_providers, provider_group,
APR_HASH_KEY_STRING);
if (!provider_group_hash) {
provider_group_hash = apr_hash_make(pool);
apr_hash_set(global_providers, provider_group, APR_HASH_KEY_STRING,
provider_group_hash);
}
provider_version_hash = apr_hash_get(provider_group_hash, provider_name,
APR_HASH_KEY_STRING);
if (!provider_version_hash) {
provider_version_hash = apr_hash_make(pool);
apr_hash_set(provider_group_hash, provider_name, APR_HASH_KEY_STRING,
provider_version_hash);
}
/* just set it. no biggy if it was there before. */
apr_hash_set(provider_version_hash, provider_version, APR_HASH_KEY_STRING,
provider);
/* Now, tuck away the provider names in an easy-to-get format */
provider_group_hash = apr_hash_get(global_providers_names, provider_group,
APR_HASH_KEY_STRING);
if (!provider_group_hash) {
provider_group_hash = apr_hash_make(pool);
apr_hash_set(global_providers_names, provider_group, APR_HASH_KEY_STRING,
provider_group_hash);
}
provider_version_hash = apr_hash_get(provider_group_hash, provider_version,
APR_HASH_KEY_STRING);
if (!provider_version_hash) {
provider_version_hash = apr_hash_make(pool);
apr_hash_set(provider_group_hash, provider_version, APR_HASH_KEY_STRING,
provider_version_hash);
}
/* just set it. no biggy if it was there before. */
apr_hash_set(provider_version_hash, provider_name, APR_HASH_KEY_STRING,
provider_name);
return APR_SUCCESS;
}
AP_DECLARE(void *) ap_lookup_provider(const char *provider_group,
const char *provider_name,
const char *provider_version)
{
apr_hash_t *provider_group_hash, *provider_name_hash;
if (global_providers == NULL) {
return NULL;
}
provider_group_hash = apr_hash_get(global_providers, provider_group,
APR_HASH_KEY_STRING);
if (provider_group_hash == NULL) {
return NULL;
}
provider_name_hash = apr_hash_get(provider_group_hash, provider_name,
APR_HASH_KEY_STRING);
if (provider_name_hash == NULL) {
return NULL;
}
return apr_hash_get(provider_name_hash, provider_version,
APR_HASH_KEY_STRING);
}
AP_DECLARE(apr_array_header_t *) ap_list_provider_names(apr_pool_t *pool,
const char *provider_group,
const char *provider_version)
{
apr_array_header_t *ret = NULL;
ap_list_provider_names_t *entry;
apr_hash_t *provider_group_hash, *h;
apr_hash_index_t *hi;
char *val;
if (global_providers_names == NULL) {
goto out;
}
provider_group_hash = apr_hash_get(global_providers_names, provider_group,
APR_HASH_KEY_STRING);
if (provider_group_hash == NULL) {
goto out;
}
h = apr_hash_get(provider_group_hash, provider_version, APR_HASH_KEY_STRING);
if (h == NULL) {
goto out;
}
ret = apr_array_make(pool, apr_hash_count(h), sizeof(ap_list_provider_names_t));
for (hi = apr_hash_first(pool, h); hi; hi = apr_hash_next(hi)) {
apr_hash_this(hi, NULL, NULL, (void *)&val);
entry = apr_array_push(ret);
entry->provider_name = apr_pstrdup(pool, val);
}
out:
if (ret == NULL) {
ret = apr_array_make(pool, 1, sizeof(ap_list_provider_names_t));
}
return ret;
}
AP_DECLARE(apr_array_header_t *) ap_list_provider_groups(apr_pool_t *pool)
{
apr_array_header_t *ret = apr_array_make(pool, 10, sizeof(ap_list_provider_groups_t));
ap_list_provider_groups_t *entry;
apr_hash_t *provider_group_hash;
apr_hash_index_t *groups_hi, *vers_hi;
char *group, *version;
if (global_providers_names == NULL)
return ret;
for (groups_hi = apr_hash_first(pool, global_providers_names);
groups_hi;
groups_hi = apr_hash_next(groups_hi))
{
apr_hash_this(groups_hi, (void *)&group, NULL, (void *)&provider_group_hash);
if (provider_group_hash == NULL)
continue;
for (vers_hi = apr_hash_first(pool, provider_group_hash);
vers_hi;
vers_hi = apr_hash_next(vers_hi))
{
apr_hash_this(vers_hi, (void *)&version, NULL, NULL);
entry = apr_array_push(ret);
entry->provider_group = group;
entry->provider_version = version;
}
}
return ret;
}
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