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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 "httpd.h"
#include "util_xml.h"
#include "apr_strings.h"
#include "ap_provider.h"
#include "mod_dav.h"
/* forward-declare */
static const dav_hooks_liveprop dav_core_hooks_liveprop;
/*
** The namespace URIs that we use. There will only ever be "DAV:".
*/
static const char * const dav_core_namespace_uris[] =
{
"DAV:",
NULL /* sentinel */
};
/*
** Define each of the core properties that this provider will handle.
** Note that all of them are in the DAV: namespace, which has a
** provider-local index of 0.
*/
static const dav_liveprop_spec dav_core_props[] =
{
{ 0, "comment", DAV_PROPID_comment, 1 },
{ 0, "creator-displayname", DAV_PROPID_creator_displayname, 1 },
{ 0, "displayname", DAV_PROPID_displayname, 1 },
{ 0, "resourcetype", DAV_PROPID_resourcetype, 0 },
{ 0, "source", DAV_PROPID_source, 1 },
{ 0 } /* sentinel */
};
static const dav_liveprop_group dav_core_liveprop_group =
{
dav_core_props,
dav_core_namespace_uris,
&dav_core_hooks_liveprop
};
static dav_prop_insert dav_core_insert_prop(const dav_resource *resource,
int propid, dav_prop_insert what,
apr_text_header *phdr)
{
const char *value = NULL;
const char *s;
apr_pool_t *p = resource->pool;
const dav_liveprop_spec *info;
long global_ns;
switch (propid)
{
case DAV_PROPID_resourcetype:
{ /* additional type info provided by external modules ? */
int i;
apr_array_header_t *extensions =
ap_list_provider_names(p, DAV_RESOURCE_TYPE_GROUP, "0");
ap_list_provider_names_t *entry =
(ap_list_provider_names_t *)extensions->elts;
for (i = 0; i < extensions->nelts; i++, entry++) {
const dav_resource_type_provider *res_hooks =
dav_get_resource_type_providers(entry->provider_name);
const char *name = NULL, *uri = NULL;
if (!res_hooks || !res_hooks->get_resource_type)
continue;
if (!res_hooks->get_resource_type(resource, &name, &uri) &&
name) {
if (!uri || !strcasecmp(uri, "DAV:"))
value = apr_pstrcat(p, value ? value : "",
"<D:", name, "/>", NULL);
else
value = apr_pstrcat(p, value ? value : "",
"<x:", name,
" xmlns:x=\"", uri,
"\"/>", NULL);
}
}
}
switch (resource->type) {
case DAV_RESOURCE_TYPE_VERSION:
if (resource->baselined) {
value = apr_pstrcat(p, value ? value : "", "<D:baseline/>", NULL);
break;
}
/* fall through */
case DAV_RESOURCE_TYPE_REGULAR:
case DAV_RESOURCE_TYPE_WORKING:
if (resource->collection) {
value = apr_pstrcat(p, value ? value : "", "<D:collection/>", NULL);
}
else {
/* ### should we denote lock-null resources? */
if (value == NULL) {
value = ""; /* becomes: <D:resourcetype/> */
}
}
break;
case DAV_RESOURCE_TYPE_HISTORY:
value = apr_pstrcat(p, value ? value : "", "<D:version-history/>", NULL);
break;
case DAV_RESOURCE_TYPE_WORKSPACE:
value = apr_pstrcat(p, value ? value : "", "<D:collection/>", NULL);
break;
case DAV_RESOURCE_TYPE_ACTIVITY:
value = apr_pstrcat(p, value ? value : "", "<D:activity/>", NULL);
break;
default:
/* ### bad juju */
return DAV_PROP_INSERT_NOTDEF;
}
break;
case DAV_PROPID_comment:
case DAV_PROPID_creator_displayname:
case DAV_PROPID_displayname:
case DAV_PROPID_source:
default:
/*
** This property is known, but not defined as a liveprop. However,
** it may be a dead property.
*/
return DAV_PROP_INSERT_NOTDEF;
}
/* assert: value != NULL */
/* get the information and global NS index for the property */
global_ns = dav_get_liveprop_info(propid, &dav_core_liveprop_group, &info);
/* assert: info != NULL && info->name != NULL */
if (what == DAV_PROP_INSERT_SUPPORTED) {
s = apr_pstrcat(p,
"<D:supported-live-property D:name=\"", info->name,
"\" D:namespace=\"", dav_core_namespace_uris[info->ns],
"\"/>" DEBUG_CR, NULL);
}
else if (what == DAV_PROP_INSERT_VALUE && *value != '\0') {
s = apr_psprintf(p, "<lp%ld:%s>%s</lp%ld:%s>" DEBUG_CR,
global_ns, info->name, value, global_ns, info->name);
}
else {
s = apr_psprintf(p, "<lp%ld:%s/>" DEBUG_CR, global_ns, info->name);
}
apr_text_append(p, phdr, s);
/* we inserted what was asked for */
return what;
}
static int dav_core_is_writable(const dav_resource *resource, int propid)
{
const dav_liveprop_spec *info;
(void) dav_get_liveprop_info(propid, &dav_core_liveprop_group, &info);
return info->is_writable;
}
static dav_error * dav_core_patch_validate(const dav_resource *resource,
const apr_xml_elem *elem,
int operation, void **context,
int *defer_to_dead)
{
/* all of our writable props go in the dead prop database */
*defer_to_dead = 1;
return NULL;
}
static const dav_hooks_liveprop dav_core_hooks_liveprop = {
dav_core_insert_prop,
dav_core_is_writable,
dav_core_namespace_uris,
dav_core_patch_validate,
NULL, /* patch_exec */
NULL, /* patch_commit */
NULL, /* patch_rollback */
};
DAV_DECLARE_NONSTD(int) dav_core_find_liveprop(
const dav_resource *resource,
const char *ns_uri, const char *name,
const dav_hooks_liveprop **hooks)
{
return dav_do_find_liveprop(ns_uri, name, &dav_core_liveprop_group, hooks);
}
DAV_DECLARE_NONSTD(void) dav_core_insert_all_liveprops(
request_rec *r,
const dav_resource *resource,
dav_prop_insert what,
apr_text_header *phdr)
{
(void) dav_core_insert_prop(resource, DAV_PROPID_resourcetype,
what, phdr);
}
DAV_DECLARE_NONSTD(void) dav_core_register_uris(apr_pool_t *p)
{
/* register the namespace URIs */
dav_register_liveprop_group(p, &dav_core_liveprop_group);
}
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