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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_errno.h"
#include "apr_strings.h"
#include "util_xml.h" /* for apr_text_header */
#include "mod_dav.h"
static apr_hash_t *dav_liveprop_uris = NULL;
static long dav_liveprop_count = 0;
static apr_status_t dav_cleanup_liveprops(void *ctx)
{
dav_liveprop_uris = NULL;
dav_liveprop_count = 0;
return APR_SUCCESS;
}
static void dav_register_liveprop_namespace(apr_pool_t *p, const char *uri)
{
long value;
if (dav_liveprop_uris == NULL) {
dav_liveprop_uris = apr_hash_make(p);
apr_pool_cleanup_register(p, NULL, dav_cleanup_liveprops, apr_pool_cleanup_null);
}
value = (long)apr_hash_get(dav_liveprop_uris, uri, APR_HASH_KEY_STRING);
if (value != 0) {
/* already registered */
return;
}
/* start at 1, and count up */
apr_hash_set(dav_liveprop_uris, uri, APR_HASH_KEY_STRING,
(void *)++dav_liveprop_count);
}
DAV_DECLARE(long) dav_get_liveprop_ns_index(const char *uri)
{
return (long)apr_hash_get(dav_liveprop_uris, uri, APR_HASH_KEY_STRING);
}
DAV_DECLARE(long) dav_get_liveprop_ns_count(void)
{
return dav_liveprop_count;
}
DAV_DECLARE(void) dav_add_all_liveprop_xmlns(apr_pool_t *p,
apr_text_header *phdr)
{
apr_hash_index_t *idx = apr_hash_first(p, dav_liveprop_uris);
for ( ; idx != NULL; idx = apr_hash_next(idx) ) {
const void *key;
void *val;
const char *s;
apr_hash_this(idx, &key, NULL, &val);
s = apr_psprintf(p, " xmlns:lp%ld=\"%s\"", (long)val, (const char *)key);
apr_text_append(p, phdr, s);
}
}
DAV_DECLARE(int) dav_do_find_liveprop(const char *ns_uri, const char *name,
const dav_liveprop_group *group,
const dav_hooks_liveprop **hooks)
{
const char * const *uris = group->namespace_uris;
const dav_liveprop_spec *scan;
int ns;
/* first: locate the namespace in the namespace table */
for (ns = 0; uris[ns] != NULL; ++ns)
if (strcmp(ns_uri, uris[ns]) == 0)
break;
if (uris[ns] == NULL) {
/* not our property (the namespace matched none of ours) */
return 0;
}
/* second: look for the property in the liveprop specs */
for (scan = group->specs; scan->name != NULL; ++scan)
if (ns == scan->ns && strcmp(name, scan->name) == 0) {
*hooks = group->hooks;
return scan->propid;
}
/* not our property (same namespace, but no matching prop name) */
return 0;
}
DAV_DECLARE(long) dav_get_liveprop_info(int propid,
const dav_liveprop_group *group,
const dav_liveprop_spec **info)
{
const dav_liveprop_spec *scan;
for (scan = group->specs; scan->name != NULL; ++scan) {
if (scan->propid == propid) {
*info = scan;
/* map the provider-local NS into a global NS index */
return dav_get_liveprop_ns_index(group->namespace_uris[scan->ns]);
}
}
/* assert: should not reach this point */
*info = NULL;
return 0;
}
DAV_DECLARE(void) dav_register_liveprop_group(apr_pool_t *p,
const dav_liveprop_group *group)
{
/* register the namespace URIs */
const char * const * uris = group->namespace_uris;
for ( ; *uris != NULL; ++uris) {
dav_register_liveprop_namespace(p, *uris);
}
}
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