diff options
Diffstat (limited to 'modules/dav/main/std_liveprop.c')
| -rw-r--r-- | modules/dav/main/std_liveprop.c | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/modules/dav/main/std_liveprop.c b/modules/dav/main/std_liveprop.c new file mode 100644 index 0000000..cb46b65 --- /dev/null +++ b/modules/dav/main/std_liveprop.c @@ -0,0 +1,226 @@ +/* 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); +} |