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-rw-r--r--modules/dav/main/std_liveprop.c226
1 files changed, 226 insertions, 0 deletions
diff --git a/modules/dav/main/std_liveprop.c b/modules/dav/main/std_liveprop.c
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+++ b/modules/dav/main/std_liveprop.c
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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);
+}