Adding upstream version 2.4.57.upstream/2.4.57

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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);
+}