enum cib_errors
cib_process_modify(const char *op, int options, const char *section, xmlNode * req, xmlNode * input,
xmlNode * existing_cib, xmlNode ** result_cib, xmlNode ** answer)
{
xmlNode *obj_root = NULL;
crm_debug_2("Processing \"%s\" event", op);
if (options & cib_xpath) {
return cib_process_xpath(op, options, section, req, input,
existing_cib, result_cib, answer);
}
if (input == NULL) {
crm_err("Cannot perform modification with no data");
return cib_NOOBJECT;
}
obj_root = get_object_root(section, *result_cib);
crm_validate_data(input);
crm_validate_data(*result_cib);
if (obj_root == NULL) {
xmlNode *tmp_section = NULL;
const char *path = get_object_parent(section);
if (path == NULL) {
return cib_bad_section;
}
tmp_section = create_xml_node(NULL, section);
cib_process_xpath(CIB_OP_CREATE, 0, path, NULL, tmp_section, NULL, result_cib, answer);
free_xml(tmp_section);
obj_root = get_object_root(section, *result_cib);
}
CRM_CHECK(obj_root != NULL, return cib_unknown);
if (update_xml_child(obj_root, input) == FALSE) {
if (options & cib_can_create) {
add_node_copy(obj_root, input);
} else {
return cib_NOTEXISTS;
}
}
return cib_ok;
}
enum cib_errors
cib_process_modify(
const char *op, int options, const char *section, crm_data_t *input,
crm_data_t *existing_cib, crm_data_t **result_cib, crm_data_t **answer)
{
crm_data_t *obj_root = NULL;
crm_debug_2("Processing \"%s\" event", op);
if(input == NULL) {
crm_err("Cannot perform modification with no data");
return cib_NOOBJECT;
}
obj_root = get_object_root(section, *result_cib);
crm_validate_data(input);
crm_validate_data(*result_cib);
if(update_xml_child(obj_root, input) == FALSE) {
return cib_NOTEXISTS;
}
return cib_ok;
}
int
cib_process_xpath(const char *op, int options, const char *section, xmlNode * req, xmlNode * input,
xmlNode * existing_cib, xmlNode ** result_cib, xmlNode ** answer)
{
int lpc = 0;
int max = 0;
int rc = pcmk_ok;
gboolean is_query = safe_str_eq(op, CIB_OP_QUERY);
xmlXPathObjectPtr xpathObj = NULL;
crm_trace("Processing \"%s\" event", op);
if (is_query) {
xpathObj = xpath_search(existing_cib, section);
} else {
xpathObj = xpath_search(*result_cib, section);
}
max = numXpathResults(xpathObj);
if (max < 1 && safe_str_eq(op, CIB_OP_DELETE)) {
crm_debug("%s was already removed", section);
} else if (max < 1) {
crm_debug("%s: %s does not exist", op, section);
rc = -ENXIO;
} else if (is_query) {
if (max > 1) {
*answer = create_xml_node(NULL, "xpath-query");
}
}
if (safe_str_eq(op, CIB_OP_DELETE) && (options & cib_multiple)) {
dedupXpathResults(xpathObj);
}
for (lpc = 0; lpc < max; lpc++) {
xmlChar *path = NULL;
xmlNode *match = getXpathResult(xpathObj, lpc);
if (match == NULL) {
continue;
}
path = xmlGetNodePath(match);
crm_debug("Processing %s op for %s (%s)", op, section, path);
free(path);
if (safe_str_eq(op, CIB_OP_DELETE)) {
if (match == *result_cib) {
/* Attempting to delete the whole "/cib" */
crm_warn("Cannot perform %s for %s: The xpath is addressing the whole /cib", op, section);
rc = -EINVAL;
break;
}
free_xml(match);
if ((options & cib_multiple) == 0) {
break;
}
} else if (safe_str_eq(op, CIB_OP_MODIFY)) {
if (update_xml_child(match, input) == FALSE) {
rc = -ENXIO;
} else if ((options & cib_multiple) == 0) {
break;
}
} else if (safe_str_eq(op, CIB_OP_CREATE)) {
add_node_copy(match, input);
break;
} else if (safe_str_eq(op, CIB_OP_QUERY)) {
if (options & cib_no_children) {
const char *tag = TYPE(match);
xmlNode *shallow = create_xml_node(*answer, tag);
copy_in_properties(shallow, match);
if (*answer == NULL) {
*answer = shallow;
}
} else if (options & cib_xpath_address) {
int path_len = 0;
char *path = NULL;
xmlNode *parent = match;
while (parent && parent->type == XML_ELEMENT_NODE) {
int extra = 1;
char *new_path = NULL;
const char *id = crm_element_value(parent, XML_ATTR_ID);
extra += strlen((const char *)parent->name);
if (id) {
extra += 8; /* [@id=""] */
extra += strlen(id);
}
path_len += extra;
new_path = malloc(path_len + 1);
if(new_path == NULL) {
break;
} else if (id) {
snprintf(new_path, path_len + 1, "/%s[@id='%s']%s", parent->name, id,
path ? path : "");
} else {
snprintf(new_path, path_len + 1, "/%s%s", parent->name, path ? path : "");
}
free(path);
path = new_path;
parent = parent->parent;
}
crm_trace("Got: %s\n", path);
if (*answer == NULL) {
*answer = create_xml_node(NULL, "xpath-query");
}
parent = create_xml_node(*answer, "xpath-query-path");
crm_xml_add(parent, XML_ATTR_ID, path);
free(path);
} else if (*answer) {
add_node_copy(*answer, match);
} else {
*answer = match;
}
} else if (safe_str_eq(op, CIB_OP_REPLACE)) {
xmlNode *parent = match->parent;
free_xml(match);
if (input != NULL) {
add_node_copy(parent, input);
}
if ((options & cib_multiple) == 0) {
break;
}
}
}
freeXpathObject(xpathObj);
return rc;
}
int
cib_process_modify(const char *op, int options, const char *section, xmlNode * req, xmlNode * input,
xmlNode * existing_cib, xmlNode ** result_cib, xmlNode ** answer)
{
xmlNode *obj_root = NULL;
crm_trace("Processing \"%s\" event", op);
if (options & cib_xpath) {
return cib_process_xpath(op, options, section, req, input,
existing_cib, result_cib, answer);
}
if (input == NULL) {
crm_err("Cannot perform modification with no data");
return -EINVAL;
}
obj_root = get_object_root(section, *result_cib);
if (obj_root == NULL) {
xmlNode *tmp_section = NULL;
const char *path = get_object_parent(section);
if (path == NULL) {
return -EINVAL;
}
tmp_section = create_xml_node(NULL, section);
cib_process_xpath(CIB_OP_CREATE, 0, path, NULL, tmp_section, NULL, result_cib, answer);
free_xml(tmp_section);
obj_root = get_object_root(section, *result_cib);
}
CRM_CHECK(obj_root != NULL, return -EINVAL);
if (update_xml_child(obj_root, input) == FALSE) {
if (options & cib_can_create) {
add_node_copy(obj_root, input);
} else {
return -ENXIO;
}
}
if(options & cib_mixed_update) {
int max = 0, lpc;
xmlXPathObjectPtr xpathObj = xpath_search(*result_cib, "//@__delete__");
if (xpathObj) {
max = numXpathResults(xpathObj);
crm_log_xml_trace(*result_cib, "Mixed result");
}
for (lpc = 0; lpc < max; lpc++) {
xmlNode *match = getXpathResult(xpathObj, lpc);
xmlChar *match_path = xmlGetNodePath(match);
crm_debug("Destroying %s", match_path);
free(match_path);
free_xml(match);
}
freeXpathObject(xpathObj);
}
return pcmk_ok;
}
