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data.c
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/**
* @file data.c
* Data translation utilities
*
* Copyright 2019, Allied Telesis Labs New Zealand, Ltd
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>
*/
#include "internal.h"
#include <apteryx-xml.h>
typedef struct _sch_xml_to_gnode_parms_s
{
sch_instance *in_instance;
int in_flags;
char *in_def_op;
bool in_is_edit;
GNode *out_tree;
nc_error_parms out_error;
GList *out_deletes;
GList *out_removes;
GList *out_creates;
GList *out_replaces;
GList *out_merges;
GList *conditions;
} _sch_xml_to_gnode_parms;
/* List keys must escape any '/' which is the only reserved
character in apteryx */
static char *
_sch_key_encode (const char *key)
{
GString *encoded = g_string_new (NULL);
const char *c = key;
while (c && *c)
{
if (*c == '/')
g_string_append_printf (encoded, "%%%02X", *c);
else
g_string_append_c (encoded, *c);
c++;
}
return g_string_free (encoded, false);
}
static bool
_sch_node_find_name (xmlNs *ns, sch_node * parent, const char *path_name, GList **path_list)
{
xmlNode *xml = (xmlNode *) parent;
xmlNode *n = NULL;
bool found = false;
n = xml->children;
while (n)
{
if (n->type == XML_ELEMENT_NODE && n->name[0] == 'N')
{
char *name = (char *) xmlGetProp (n, (xmlChar *) "name");
if (sch_match_name (name, path_name) && sch_ns_match (n, ns))
{
xmlFree (name);
found = true;
break;
}
if (n->children)
{
found = _sch_node_find_name (ns, n, path_name, path_list);
if (found)
{
*path_list = g_list_prepend (*path_list, g_strdup (name));
xmlFree (name);
break;
}
}
xmlFree (name);
}
n = n->next;
}
return found;
}
static bool
sch_node_find_name (sch_instance *instance, xmlNs *ns, sch_node *parent, const char *path, int flags, GList **path_list)
{
char *name;
char *next;
char *colon;
bool found = false;
if (path && path[0] == '/')
{
path++;
/* Parse path element */
next = strchr (path, '/');
if (next)
name = g_strndup (path, next - path);
else
name = g_strdup (path);
colon = strchr (name, ':');
if (colon)
{
colon[0] = '\0';
xmlNs *nns = sch_lookup_ns (instance, parent, name, flags, false);
if (!nns)
{
/* No namespace found assume the node is supposed to have a colon in it */
colon[0] = ':';
}
else
{
/* We found a namespace. Remove the prefix */
char *_name = name;
name = g_strdup (colon + 1);
free (_name);
ns = nns;
}
}
found = _sch_node_find_name (ns, parent, name, path_list);
g_free (name);
}
return found;
}
static void
sch_check_condition_parms (_sch_xml_to_gnode_parms *_parms, sch_node *node, char *new_xpath)
{
xmlChar *when_clause = xmlGetProp ((xmlNode *) node, BAD_CAST "when");
xmlChar *must_clause = xmlGetProp ((xmlNode *) node, BAD_CAST "must");
xmlChar *if_feature = xmlGetProp ((xmlNode *) node, BAD_CAST "if-feature");
if (when_clause)
{
_parms->conditions = g_list_append (_parms->conditions, g_strdup (new_xpath));
_parms->conditions = g_list_append (_parms->conditions, g_strdup ((char *) when_clause));
DEBUG ("when_clause <%s - %s>\n", new_xpath, when_clause);
xmlFree (when_clause);
}
if (must_clause)
{
_parms->conditions = g_list_append (_parms->conditions, g_strdup (new_xpath));
_parms->conditions = g_list_append (_parms->conditions, g_strdup ((char *) must_clause));
DEBUG ("must_clause <%s - %s>\n", new_xpath, must_clause);
xmlFree (must_clause);
}
if (if_feature)
{
_parms->conditions = g_list_append (_parms->conditions, g_strdup (new_xpath));
_parms->conditions = g_list_append (_parms->conditions,
g_strdup_printf ("if-feature(%s)", (char *) if_feature));
DEBUG("if_feature <%s - %s>\n", new_xpath, if_feature);
xmlFree (if_feature);
}
}
static xmlNode *
_sch_gnode_to_xml (sch_instance * instance, sch_node * schema, sch_ns *ns, xmlNode * parent,
GNode * node, int flags, int depth)
{
sch_node *pschema = schema;
xmlNode *data = NULL;
char *colon = NULL;
char *name;
char *condition = NULL;
char *path = NULL;
/* Get the actual node name */
if (depth == 0 && strlen (APTERYX_NAME (node)) == 1)
{
return _sch_gnode_to_xml (instance, schema, ns, parent, node->children, flags, depth);
}
else if (depth == 0 && APTERYX_NAME (node)[0] == '/')
{
name = g_strdup (APTERYX_NAME (node) + 1);
}
else
{
name = g_strdup (APTERYX_NAME (node));
}
colon = strchr (name, ':');
if (colon)
{
colon[0] = '\0';
sch_ns *nns = sch_lookup_ns (instance, schema, name, flags, false);
if (!nns)
{
/* No namespace found assume the node is supposed to have a colon in it */
colon[0] = ':';
}
else
{
/* We found a namespace. Remove the prefix */
char *_name = name;
name = g_strdup (colon + 1);
free (_name);
ns = nns;
}
}
/* Find schema node */
if (sch_is_proxy (schema))
{
/* Two possible cases, the node is a child of the proxy node or we need to
* move to access the remote database via the proxy */
schema = sch_ns_node_child (ns, schema, name);
if (!schema)
{
schema = sch_get_root_schema (instance);
colon = strchr (name, ':');
if (schema && colon)
{
colon[0] = '\0';
xmlNs *nns = sch_lookup_ns (instance, schema, name, flags, false);
if (!nns)
{
/* No namespace found assume the node is supposed to have a colon in it */
colon[0] = ':';
}
else
{
/* We found a namespace. Remove the prefix */
char *_name = name;
name = g_strdup (colon + 1);
free (_name);
ns = nns;
}
}
schema = sch_ns_node_child (ns, schema, name);
}
}
else
{
if (!schema)
schema = sch_get_root_schema (instance);
schema = sch_ns_node_child (ns, schema, name);
}
if (schema == NULL)
{
DEBUG ("No schema match for gnode %s%s%s\n",
ns ? sch_ns_prefix (instance, ns) : "", ns ? ":" : "", name);
free (name);
return NULL;
}
if (!sch_is_readable (schema))
{
DEBUG ("Ignoring non-readable node %s%s%s\n",
ns ? sch_ns_prefix (instance, ns) : "", ns ? ":" : "", name);
free (name);
return NULL;
}
flags |= SCH_F_CONDITIONS;
sch_check_condition (schema, node, flags, &path, &condition);
if (condition)
{
if (!sch_process_condition (netconf_get_g_schema (), node, path, condition))
{
g_free (condition);
g_free (path);
free (name);
return NULL;
}
g_free (condition);
g_free (path);
}
if (sch_is_leaf_list (schema))
{
xmlNode *prev = NULL;
apteryx_sort_children (node, g_strcmp0);
for (GNode * child = node->children; child; child = child->next)
{
GNode *value_node = child->children;
if (value_node)
{
char *leaf_name = APTERYX_NAME (value_node);
xmlNode *list_data = xmlNewNode (NULL, BAD_CAST name);
xmlNodeSetContent (list_data, (const xmlChar *) leaf_name);
sch_ns *sns = sch_node_ns (schema);
if (!pschema || !sch_ns_match (pschema, sns))
{
const xmlChar *href = (const xmlChar *) sch_ns_href (instance, sns);
xmlNsPtr nns = xmlNewNs (list_data, href, NULL);
xmlSetNs (list_data, nns);
}
if (parent)
xmlAddChildList (parent, list_data);
else if (prev)
prev = xmlAddSibling (prev, list_data);
else
prev = list_data;
if (!data)
data = list_data;
DEBUG ("%*s%s = %s\n", depth * 2, " ", APTERYX_NAME (node), leaf_name);
}
}
}
else if (sch_is_list (schema))
{
xmlNode *prev = NULL;
xmlNode *list_data = NULL;
data = NULL;
apteryx_sort_children (node, g_strcmp0);
for (GNode * child = node->children; child; child = child->next)
{
gboolean has_child = false;
DEBUG ("%*s%s[%s]\n", depth * 2, " ", APTERYX_NAME (node),
APTERYX_NAME (child));
list_data = xmlNewNode (NULL, BAD_CAST name);
sch_ns *sns = sch_node_ns (schema);
if (!pschema || !sch_ns_match (pschema, sns))
{
const xmlChar *href = (const xmlChar *) sch_ns_href (instance, sns);
xmlNsPtr nns = xmlNewNs (list_data, href, NULL);
xmlSetNs (list_data, nns);
}
sch_gnode_sort_children (sch_node_child_first (schema), child);
for (GNode * field = child->children; field; field = field->next)
{
if (_sch_gnode_to_xml (instance, sch_node_child_first (schema), ns,
list_data, field, flags, depth + 1))
{
has_child = true;
}
}
if (has_child)
{
if ((flags & SCH_F_XPATH))
{
char *key = sch_list_key (schema);
if (key)
{
xmlNode *n = list_data->children;
while (n)
{
if (n->type == XML_ELEMENT_NODE && g_strcmp0 (key, (char *) n->name) == 0)
break;
n = n->next;
}
if (!n)
{
xmlNode *key_data = xmlNewNode (NULL, BAD_CAST key);
xmlNodeSetContent (key_data, (const xmlChar *) APTERYX_NAME (child));
xmlAddPrevSibling (list_data->children, key_data);
}
g_free (key);
}
}
if (parent)
xmlAddChildList (parent, list_data);
else if (prev)
prev = xmlAddSibling (prev, list_data);
else
prev = list_data;
if (!data)
data = list_data;
}
else
{
xmlFreeNode (list_data);
list_data = NULL;
}
}
}
else if (!sch_is_leaf (schema))
{
gboolean has_child = false;
DEBUG ("%*s%s\n", depth * 2, " ", APTERYX_NAME (node));
data = xmlNewNode (NULL, BAD_CAST name);
sch_gnode_sort_children (schema, node);
for (GNode * child = node->children; child; child = child->next)
{
if (_sch_gnode_to_xml (instance, schema, ns, data, child, flags, depth + 1))
{
has_child = true;
}
}
/* Add this node if we found children or its an empty presence container */
if (parent && (has_child || !((xmlNode *)schema)->children))
{
xmlAddChild (parent, data);
}
else if (!has_child)
{
xmlFreeNode (data);
data = NULL;
}
}
else if (APTERYX_HAS_VALUE (node))
{
if (!(flags & SCH_F_CONFIG) || sch_is_writable (schema))
{
char *value = g_strdup (APTERYX_VALUE (node) ? APTERYX_VALUE (node) : "");
xmlChar *idref_href;
xmlChar *idref_prefix;
data = xmlNewNode (NULL, BAD_CAST name);
value = sch_translate_to (schema, value);
idref_href = xmlGetProp ((xmlNode *) schema, BAD_CAST "idref_href");
if (idref_href)
{
char *temp = value;
idref_prefix = xmlGetProp ((xmlNode *) schema, BAD_CAST "idref_prefix");
if (idref_prefix)
{
value = g_strdup_printf ("%s:%s", (char *) idref_prefix, value);
xmlNs *nns = xmlNewNs (data, idref_href, NULL);
xmlSetNs (data, nns);
g_free (temp);
xmlFree (idref_prefix);
}
xmlFree (idref_href);
}
xmlNodeSetContent (data, (const xmlChar *) value);
if (parent)
xmlAddChildList (parent, data);
DEBUG ("%*s%s = %s\n", depth * 2, " ", APTERYX_NAME (node), value);
free (value);
}
}
/* Record any changes to the namespace (including the root node) */
if (data && schema && (!pschema || ((xmlNode *)pschema)->ns != ((xmlNode *)schema)->ns))
{
/* Dont store a prefix as we set the default xmlns at each node */
xmlNsPtr nns = xmlNewNs (data, ((xmlNode *)schema)->ns->href, NULL);
xmlSetNs (data, nns);
}
free (name);
return data;
}
xmlNode *
sch_gnode_to_xml (sch_instance * instance, sch_node * schema, GNode * node, int flags)
{
if (node && g_node_n_children (node) > 1 && strlen (APTERYX_NAME (node)) == 1)
{
xmlNode *first = NULL;
xmlNode *last = NULL;
xmlNode *next;
apteryx_sort_children (node, g_strcmp0);
for (GNode * child = node->children; child; child = child->next)
{
next = _sch_gnode_to_xml (instance, schema, NULL, NULL, child, flags, 1);
if (next)
{
if (last)
xmlAddSibling (last, next);
last = next;
if (!first)
first = next;
}
}
return first;
}
else
return _sch_gnode_to_xml (instance, schema, NULL, NULL, node, flags, 0);
}
static bool
xml_node_has_content (xmlNode * xml)
{
char *content = (char *) xmlNodeGetContent (xml);
bool ret = (content && strlen (content) > 0);
free (content);
return ret;
}
/**
* Check XML node for the operation attribute and extract it. Return whether the
* operation is recognised or not.
*/
static bool
_operation_ok (_sch_xml_to_gnode_parms *_parms, xmlNode *xml, char *curr_op, char **new_op)
{
char *attr;
attr = (char *) xmlGetProp (xml, BAD_CAST "operation");
if (attr != NULL)
{
if (!_parms->in_is_edit)
{
_parms->out_error.tag = NC_ERR_TAG_BAD_ATTR;
_parms->out_error.type = NC_ERR_TYPE_PROTOCOL;
g_hash_table_insert (_parms->out_error.info, "bad-element", g_strdup ("operation"));
g_hash_table_insert (_parms->out_error.info, "bad-attribute", attr);
return false;
}
/* Find new attribute. */
if (g_strcmp0 (attr, "delete") == 0)
{
*new_op = "delete";
}
else if (g_strcmp0 (attr, "merge") == 0)
{
*new_op = "merge";
}
else if (g_strcmp0 (attr, "replace") == 0)
{
*new_op = "replace";
}
else if (g_strcmp0 (attr, "create") == 0)
{
*new_op = "create";
}
else if (g_strcmp0 (attr, "remove") == 0)
{
*new_op = "remove";
}
else
{
_parms->out_error.tag = NC_ERR_TAG_UNKNOWN_ATTR;
_parms->out_error.type = NC_ERR_TYPE_PROTOCOL;
g_hash_table_insert (_parms->out_error.info, "bad-element", g_strdup ("operation"));
g_hash_table_insert (_parms->out_error.info, "bad-attribute", attr);
return false;
}
g_free (attr);
/* Check for invalid transitions between sub-operations. We only allow
* merge->anything transitions.
*/
if (g_strcmp0 (curr_op, *new_op) != 0 && g_strcmp0 (curr_op, "merge") != 0 &&
g_strcmp0 (curr_op, "none") != 0)
{
_parms->out_error.tag = NC_ERR_TAG_OPR_NOT_SUPPORTED;
_parms->out_error.type = NC_ERR_TYPE_PROTOCOL;
return false;
}
}
return true;
}
static void
_perform_actions (_sch_xml_to_gnode_parms *_parms, int depth, char *curr_op, char *new_op, char *new_xpath)
{
/* Do nothing if not an edit, or operation not changing, unless depth is 0. */
if (!_parms->in_is_edit || (g_strcmp0 (curr_op, new_op) == 0 && depth != 0))
{
return;
}
/* Handle operations. */
if (g_strcmp0 (new_op, "delete") == 0)
{
_parms->out_deletes = g_list_append (_parms->out_deletes, g_strdup (new_xpath));
DEBUG ("delete <%s>\n", new_xpath);
}
else if (g_strcmp0 (new_op, "remove") == 0)
{
_parms->out_removes = g_list_append (_parms->out_removes, g_strdup (new_xpath));
DEBUG ("remove <%s>\n", new_xpath);
}
else if (g_strcmp0 (new_op, "create") == 0)
{
_parms->out_creates = g_list_append (_parms->out_creates, g_strdup (new_xpath));
DEBUG ("create <%s>\n", new_xpath);
}
else if (g_strcmp0 (new_op, "replace") == 0)
{
_parms->out_replaces = g_list_append (_parms->out_replaces, g_strdup (new_xpath));
DEBUG ("replace <%s>\n", new_xpath);
}
}
static char *
_xml_to_gnode_find_key (xmlNode * xml, char * key)
{
xmlNode *iter;
for (iter = xmlFirstElementChild (xml); iter; iter = xmlNextElementSibling (iter))
{
if (g_strcmp0 ((const char *) iter->name, key) == 0 && xml_node_has_content (iter))
{
return (char *) xmlNodeGetContent (iter);
}
}
return NULL;
}
static GNode *
_sch_xml_to_gnode (_sch_xml_to_gnode_parms *_parms, sch_node * schema, sch_ns *ns, char * part_xpath,
char * curr_op, GNode * pparent, xmlNode * xml, int depth, sch_node **rschema)
{
sch_instance *instance = _parms->in_instance;
int flags = _parms->in_flags;
char *name = (char *) xml->name;
xmlNode *child;
char *attr;
GNode *tree = NULL;
GNode *node = NULL;
char *key = NULL;
char *new_xpath = NULL;
char *new_op = curr_op;
bool key_valid = false;
bool ret_tree = false;
bool is_proxy = false;
bool read_only = false;
/* Detect change in namespace */
if (xml->ns && xml->ns->href)
{
sch_ns *nns = sch_lookup_ns (instance, schema, (const char *) xml->ns->href, flags, true);
if (nns)
ns = nns;
}
/* Find schema node */
if (schema && sch_is_proxy (schema))
{
/* The schema containing the proxy node can have children */
sch_node *child = sch_ns_node_child (ns, schema, name);
if (!child)
{
is_proxy = sch_is_proxy (schema);
read_only = sch_is_read_only_proxy (schema);
}
}
if (!schema || is_proxy)
{
schema = sch_get_root_schema (instance);
/* Detect change in namespace with the new schema */
if (xml->ns && xml->ns->href)
{
sch_ns *nns = sch_lookup_ns (instance, schema, (const char *) xml->ns->href, flags, true);
if (nns)
ns = nns;
}
}
schema = sch_ns_node_child (ns, schema, name);
if (schema == NULL)
{
DEBUG ("No schema match for xml node %s%s%s\n",
ns ? sch_ns_prefix (instance, ns) : "", ns ? ":" : "", name);
_parms->out_error.tag = NC_ERR_TAG_MALFORMED_MSG;
_parms->out_error.type = NC_ERR_TYPE_RPC;
return NULL;
}
if (_parms->in_is_edit && read_only)
{
DEBUG ("Invalid operation\n");
_parms->out_error.tag = NC_ERR_TAG_INVALID_VAL;
_parms->out_error.type = NC_ERR_TYPE_PROTOCOL;
return NULL;
}
if (rschema)
*rschema = schema;
/* Prepend non default namespaces to root nodes */
if ((depth == 0 || is_proxy) && ns && sch_ns_prefix (instance, ns) && !sch_ns_native (instance, ns))
name = g_strdup_printf ("%s:%s", sch_ns_prefix (instance, ns), (const char *) xml->name);
else
name = g_strdup ((char *) xml->name);
/* Update xpath. */
new_xpath = g_strdup_printf ("%s/%s", part_xpath, name);
/* Check operation, error tag set on exit from routine. */
if (!_operation_ok (_parms, xml, curr_op, &new_op))
{
DEBUG ("Invalid operation\n");
free (new_xpath);
free (name);
return NULL;
}
/* LIST */
if (sch_is_leaf_list (schema))
{
char *old_xpath = new_xpath;
sch_node *parent = schema;
DEBUG ("%*s%s%s\n", depth * 2, " ", depth ? "" : "/", name);
tree = APTERYX_NODE (NULL, g_strdup_printf ("%s%s", depth ? "" : "/", name));
schema = sch_node_child_first (schema);
if (xml_node_has_content (xml))
{
if (_parms->in_is_edit)
sch_check_condition_parms (_parms, parent, new_xpath);
char *content = (char *) xmlNodeGetContent (xml);
if (_parms->in_is_edit && !sch_validate_pattern (schema, content))
{
if (logging & LOG_EDIT_CONFIG)
{
ERROR ("EDIT-CONFIG: Invalid value \"%s\" for node \"%s\"\n", content, name);
}
g_free (content);
apteryx_free_tree (tree);
_parms->out_error.tag = NC_ERR_TAG_INVALID_VAL;
_parms->out_error.type = NC_ERR_TYPE_PROTOCOL;
tree = NULL;
goto exit;
}
char *key_value = _sch_key_encode (content);
if (g_strcmp0 (new_op, "delete") == 0 || g_strcmp0 (new_op, "remove") == 0 ||
g_strcmp0 (new_op, "none") == 0)
{
new_xpath = g_strdup_printf ("%s/%s", old_xpath, key_value);
apteryx_free_tree (tree);
tree = NULL;
}
else
{
new_xpath = g_strdup_printf ("%s/%s", old_xpath, key_value);
node = APTERYX_NODE (tree, g_strdup (key_value));
node = APTERYX_NODE (node, g_strdup (content));
if (_parms->in_is_edit)
{
if (g_strcmp0 (new_op, "merge") == 0)
{
_parms->out_merges =
g_list_append (_parms->out_merges, g_strdup(new_xpath));
DEBUG ("merge <%s>\n", new_xpath);
}
else if (g_strcmp0 (new_op, "replace") == 0)
{
_parms->out_replaces =
g_list_append (_parms->out_replaces, g_strdup(new_xpath));
DEBUG ("replace <%s>\n", new_xpath);
}
}
}
g_free (content);
g_free (key_value);
g_free (old_xpath);
ret_tree = true;
}
else
{
node = APTERYX_NODE (tree, g_strdup ("*"));
}
if (rschema)
*rschema = schema;
}
else if (sch_is_list (schema))
{
char *old_xpath = new_xpath;
char *key_value;
key = sch_name (sch_node_child_first (sch_node_child_first (schema)));
DEBUG ("%*s%s%s\n", depth * 2, " ", depth ? "" : "/", name);
tree = node = APTERYX_NODE (NULL, g_strdup_printf ("%s%s", depth ? "" : "/", name));
depth++;
attr = (char *) xmlGetProp (xml, BAD_CAST key);
if (attr)
{
key_value = _sch_key_encode (attr);
free (attr);
node = APTERYX_NODE (node, key_value);
DEBUG ("%*s%s\n", depth * 2, " ", APTERYX_NAME (node));
if (!(_parms->in_flags & SCH_F_STRIP_KEY) || xmlFirstElementChild (xml))
{
GNode *_node = APTERYX_NODE (node, g_strdup (key));
DEBUG ("%*s%s\n", (depth + 1) * 2, " ", key);
if (!_parms->in_is_edit)
g_node_prepend_data (_node, NULL);
}
}
else
{
char *content = _xml_to_gnode_find_key (xml, key);
if (content == NULL)
{
if (_parms->in_is_edit)
{
apteryx_free_tree (tree);
_parms->out_error.tag = NC_ERR_TAG_MISSING_ATTR;
_parms->out_error.type = NC_ERR_TYPE_PROTOCOL;
tree = NULL;
goto exit;
}
else
{
key_value = g_strdup ("*");
node = APTERYX_NODE (node, key_value);
DEBUG ("%*s%s\n", depth * 2, " ", APTERYX_NAME (node));
}
}
else
{
key_value = _sch_key_encode (content);
free (content);
node = APTERYX_NODE (node, key_value);
DEBUG ("%*s%s\n", depth * 2, " ", APTERYX_NAME (node));
}
}
if (_parms->in_is_edit)
sch_check_condition_parms (_parms, schema, new_xpath);
schema = sch_node_child_first (schema);
if (rschema)
*rschema = schema;
new_xpath = g_strdup_printf ("%s/%s", old_xpath, key_value);
g_free (old_xpath);
}
/* CONTAINER */
else if (!sch_is_leaf (schema))
{
DEBUG ("%*s%s%s\n", depth * 2, " ", depth ? "" : "/", name);
tree = node = APTERYX_NODE (NULL, g_strdup_printf ("%s%s", depth ? "" : "/", name));
if (_parms->in_is_edit)
sch_check_condition_parms (_parms, schema, new_xpath);
}
/* LEAF */
else
{
/* Check that this leaf is writable */
if (_parms->in_is_edit && !sch_is_writable (schema))
{
DEBUG ("Attempt to edit non-writable node \"%s\"\n", name);
apteryx_free_tree (tree);
_parms->out_error.tag = NC_ERR_TAG_INVALID_VAL;
_parms->out_error.type = NC_ERR_TYPE_PROTOCOL;
tree = NULL;
goto exit;
}
if (g_strcmp0 (new_op, "delete") != 0 && g_strcmp0 (new_op, "remove") != 0 &&
g_strcmp0 (new_op, "none") != 0)
{
sch_node *sch_parent;
gboolean validate = true;
char *value = NULL;
tree = node = APTERYX_NODE (NULL, g_strdup (name));
ret_tree = true;
if (!xml_node_has_content (xml) && !(_parms->in_flags & SCH_F_STRIP_DATA)
&& (_parms->in_is_edit))
{
value = g_strdup ("");
}
else if (xml_node_has_content (xml) && !(_parms->in_flags & SCH_F_STRIP_DATA))
{
value = (char *) xmlNodeGetContent (xml);
value = sch_translate_from (schema, value);
}
else
{
DEBUG ("%*s%s%s\n", depth * 2, " ", depth ? "" : "/", name);
validate = false;
}
/* Can now validate value, whether or not it is an empty string */
if (validate)
{
if (_parms->in_is_edit && !sch_validate_pattern (schema, value))
{
if (logging & LOG_EDIT_CONFIG)
{
ERROR ("EDIT-CONFIG: Invalid value \"%s\" for node \"%s\"\n", value, name);
}
free (value);
apteryx_free_tree (tree);
_parms->out_error.tag = NC_ERR_TAG_INVALID_VAL;
_parms->out_error.type = NC_ERR_TYPE_PROTOCOL;
tree = NULL;
goto exit;
}
if (_parms->in_is_edit)
sch_check_condition_parms (_parms, schema, new_xpath);
/* Test for RFC6241 section 6.2.5 compliance */
sch_parent = sch_node_parent (sch_node_parent (schema));
if (!_parms->in_is_edit && sch_parent && sch_is_list (sch_parent))
{
xmlNode *xml_parent = xml->parent;
xml_parent = xml_parent->parent;
char * key = sch_name (sch_node_child_first (sch_node_child_first (sch_parent)));
xml_parent = xml->parent;
for (child = xmlFirstElementChild (xml_parent); child; child = xmlNextElementSibling (child))
{
if (key && g_strcmp0 ((const char *) child->name, key) == 0)
{
key_valid = true;
break;
}
}
if (key_valid)
{
node = APTERYX_NODE (tree, value);
DEBUG ("%*s%s = %s\n", depth * 2, " ", name, APTERYX_NAME (node));
}
else
g_free (value);
g_free (key);
}
else
{
node = APTERYX_NODE (tree, value);
DEBUG ("%*s%s = %s\n", depth * 2, " ", name, APTERYX_NAME (node));
if (_parms->in_is_edit)
{
if (g_strcmp0 (new_op, "merge") == 0)
{
_parms->out_merges =
g_list_append (_parms->out_merges, g_strdup(new_xpath));
DEBUG ("merge <%s>\n", new_xpath);
}
else if (g_strcmp0 (new_op, "replace") == 0)
{
_parms->out_replaces =
g_list_append (_parms->out_replaces, g_strdup(new_xpath));
DEBUG ("replace <%s>\n", new_xpath);
}
}
}
}
else if (!_parms->in_is_edit)
g_node_prepend_data (node, NULL);
}
}
/* Carry out actions for this operation. Does nothing if not edit-config. */
_perform_actions (_parms, depth, curr_op, new_op, new_xpath);
for (child = xmlFirstElementChild (xml); child; child = xmlNextElementSibling (child))
{
if ((_parms->in_flags & SCH_F_STRIP_KEY) && key &&
g_strcmp0 ((const char *) child->name, key) == 0)
{
/* The only child is the key with value */
if (xmlChildElementCount (xml) == 1)
{
if (xml_node_has_content (child))
{
/* Want all parameters for one entry in list. */
GNode *_node = APTERYX_NODE (node, g_strdup ("*"));
DEBUG ("%*s%s\n", (depth + 1) * 2, " ", "*");
if (!_parms->in_is_edit)
g_node_prepend_data (_node, NULL);
}
else
{
/* Want one field in list element for one or more entries */
GNode *_node = APTERYX_NODE (node, g_strdup ((const char *) child->name));
DEBUG ("%*s%s\n", (depth + 1) * 2, " ", child->name);
sch_node *child_schema = sch_ns_node_child (ns, schema, (char *) child->name);
if (child_schema && rschema)
*rschema = child_schema;
if (!_parms->in_is_edit)
g_node_prepend_data (_node, NULL);
}
break;
}
/* Multiple children - make sure key appears */
else if (xmlChildElementCount (xml) > 1 && !sch_is_proxy (schema))
{
GNode *_node = APTERYX_NODE (node, g_strdup ((const char *) child->name));
DEBUG ("%*s%s\n", depth * 2, " ", APTERYX_NAME (node));
sch_node *child_schema = sch_ns_node_child (ns, schema, (char *) child->name);
if (child_schema && rschema)
*rschema = child_schema;
if (!_parms->in_is_edit)
g_node_prepend_data (_node, NULL);
}
ret_tree = true;
}
else
{