| /* Copyright 2000-2004 The Apache Software Foundation |
| * |
| * Licensed 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 int 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) |
| { |
| int 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 = (int)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(int) dav_get_liveprop_ns_index(const char *uri) |
| { |
| return (int)apr_hash_get(dav_liveprop_uris, uri, APR_HASH_KEY_STRING); |
| } |
| |
| int dav_get_liveprop_ns_count(void) |
| { |
| return dav_liveprop_count; |
| } |
| |
| 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%d=\"%s\"", (int)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(int) 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); |
| } |
| } |