Function dav_lock_parse_lockinfo

modules/dav/main/util_lock.c:170–251

** dav_lock_parse_lockinfo: Validates the given xml_doc to contain a ** lockinfo XML element, then populates a dav_lock structure ** with its contents. */

**    with its contents.
*/
DAV_DECLARE(dav_error *) dav_lock_parse_lockinfo(request_rec *r,
                                                 const dav_resource *resource,
                                                 dav_lockdb *lockdb,
                                                 const apr_xml_doc *doc,
                                                 dav_lock **lock_request)
{
    apr_pool_t *p = r->pool;
    dav_error *err;
    apr_xml_elem *child;
    dav_lock *lock;

    if (!dav_validate_root(doc, "lockinfo")) {
        return dav_new_error(p, HTTP_BAD_REQUEST, 0, 0,
                             "The request body contains an unexpected "
                             "XML root element.");
    }

    if ((err = (*lockdb->hooks->create_lock)(lockdb, resource,
                                             &lock)) != NULL) {
        return dav_push_error(p, err->status, 0,
                              "Could not parse the lockinfo due to an "
                              "internal problem creating a lock structure.",
                              err);
    }

    lock->depth = dav_get_depth(r, DAV_INFINITY);
    if (lock->depth == -1) {
        return dav_new_error(p, HTTP_BAD_REQUEST, 0, 0,
                             "An invalid Depth header was specified.");
    }
    lock->timeout = dav_get_timeout(r);

    /* Parse elements in the XML body */
    for (child = doc->root->first_child; child; child = child->next) {
        if (strcmp(child->name, "locktype") == 0
            && child->first_child
            && lock->type == DAV_LOCKTYPE_UNKNOWN) {
            if (strcmp(child->first_child->name, "write") == 0) {
                lock->type = DAV_LOCKTYPE_WRITE;
                continue;
            }
        }
        if (strcmp(child->name, "lockscope") == 0
            && child->first_child
            && lock->scope == DAV_LOCKSCOPE_UNKNOWN) {
            if (strcmp(child->first_child->name, "exclusive") == 0)
                lock->scope = DAV_LOCKSCOPE_EXCLUSIVE;
            else if (strcmp(child->first_child->name, "shared") == 0)
                lock->scope = DAV_LOCKSCOPE_SHARED;
            if (lock->scope != DAV_LOCKSCOPE_UNKNOWN)
                continue;
        }

        if (strcmp(child->name, "owner") == 0 && lock->owner == NULL) {
            const char *text;

            /* quote all the values in the <DAV:owner> element */
            apr_xml_quote_elem(p, child);