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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 06:33:50 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 06:33:50 +0000 |
commit | fe39ffb8b90ae4e002ed73fe98617cd590abb467 (patch) | |
tree | b80e5956907d8aeaaffe4e4f0c068c0e6157ce8b /modules/dav/main/liveprop.c | |
parent | Initial commit. (diff) | |
download | apache2-upstream.tar.xz apache2-upstream.zip |
Adding upstream version 2.4.56.upstream/2.4.56upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | modules/dav/main/liveprop.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/modules/dav/main/liveprop.c b/modules/dav/main/liveprop.c new file mode 100644 index 0000000..d170d75 --- /dev/null +++ b/modules/dav/main/liveprop.c @@ -0,0 +1,140 @@ +/* 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); + } +} |