141 lines
4.3 KiB
C
141 lines
4.3 KiB
C
/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "apr_pools.h"
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#include "apr_hash.h"
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#include "apr_errno.h"
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#include "apr_strings.h"
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#include "util_xml.h" /* for apr_text_header */
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#include "mod_dav.h"
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static apr_hash_t *dav_liveprop_uris = NULL;
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static long dav_liveprop_count = 0;
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static apr_status_t dav_cleanup_liveprops(void *ctx)
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{
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dav_liveprop_uris = NULL;
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dav_liveprop_count = 0;
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return APR_SUCCESS;
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}
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static void dav_register_liveprop_namespace(apr_pool_t *p, const char *uri)
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{
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long value;
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if (dav_liveprop_uris == NULL) {
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dav_liveprop_uris = apr_hash_make(p);
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apr_pool_cleanup_register(p, NULL, dav_cleanup_liveprops, apr_pool_cleanup_null);
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}
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value = (long)apr_hash_get(dav_liveprop_uris, uri, APR_HASH_KEY_STRING);
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if (value != 0) {
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/* already registered */
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return;
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}
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/* start at 1, and count up */
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apr_hash_set(dav_liveprop_uris, uri, APR_HASH_KEY_STRING,
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(void *)++dav_liveprop_count);
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}
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DAV_DECLARE(long) dav_get_liveprop_ns_index(const char *uri)
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{
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return (long)apr_hash_get(dav_liveprop_uris, uri, APR_HASH_KEY_STRING);
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}
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DAV_DECLARE(long) dav_get_liveprop_ns_count(void)
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{
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return dav_liveprop_count;
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}
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DAV_DECLARE(void) dav_add_all_liveprop_xmlns(apr_pool_t *p,
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apr_text_header *phdr)
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{
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apr_hash_index_t *idx = apr_hash_first(p, dav_liveprop_uris);
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for ( ; idx != NULL; idx = apr_hash_next(idx) ) {
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const void *key;
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void *val;
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const char *s;
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apr_hash_this(idx, &key, NULL, &val);
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s = apr_psprintf(p, " xmlns:lp%ld=\"%s\"", (long)val, (const char *)key);
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apr_text_append(p, phdr, s);
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}
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}
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DAV_DECLARE(int) dav_do_find_liveprop(const char *ns_uri, const char *name,
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const dav_liveprop_group *group,
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const dav_hooks_liveprop **hooks)
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{
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const char * const *uris = group->namespace_uris;
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const dav_liveprop_spec *scan;
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int ns;
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/* first: locate the namespace in the namespace table */
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for (ns = 0; uris[ns] != NULL; ++ns)
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if (strcmp(ns_uri, uris[ns]) == 0)
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break;
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if (uris[ns] == NULL) {
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/* not our property (the namespace matched none of ours) */
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return 0;
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}
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/* second: look for the property in the liveprop specs */
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for (scan = group->specs; scan->name != NULL; ++scan)
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if (ns == scan->ns && strcmp(name, scan->name) == 0) {
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*hooks = group->hooks;
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return scan->propid;
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}
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/* not our property (same namespace, but no matching prop name) */
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return 0;
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}
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DAV_DECLARE(long) dav_get_liveprop_info(int propid,
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const dav_liveprop_group *group,
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const dav_liveprop_spec **info)
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{
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const dav_liveprop_spec *scan;
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for (scan = group->specs; scan->name != NULL; ++scan) {
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if (scan->propid == propid) {
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*info = scan;
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/* map the provider-local NS into a global NS index */
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return dav_get_liveprop_ns_index(group->namespace_uris[scan->ns]);
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}
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}
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/* assert: should not reach this point */
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*info = NULL;
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return 0;
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}
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DAV_DECLARE(void) dav_register_liveprop_group(apr_pool_t *p,
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const dav_liveprop_group *group)
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{
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/* register the namespace URIs */
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const char * const * uris = group->namespace_uris;
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for ( ; *uris != NULL; ++uris) {
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dav_register_liveprop_namespace(p, *uris);
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}
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}
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