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element.c
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element.c
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/*
+----------------------------------------------------------------------+
| Copyright (c) The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| https://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Christian Stocker <chregu@php.net> |
| Rob Richards <rrichards@php.net> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "php.h"
#if defined(HAVE_LIBXML) && defined(HAVE_DOM)
#include "zend_enum.h"
#include "php_dom.h"
#include "namespace_compat.h"
#include "private_data.h"
#include "internal_helpers.h"
#include "dom_properties.h"
#include "token_list.h"
/*
* class DOMElement extends DOMNode
*
* URL: https://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#core-ID-745549614
* Since:
*/
/* {{{ */
PHP_METHOD(DOMElement, __construct)
{
xmlNodePtr nodep = NULL, oldnode = NULL;
dom_object *intern;
char *name, *value = NULL, *uri = NULL;
char *localname = NULL, *prefix = NULL;
int errorcode = 0;
size_t name_len, value_len = 0, uri_len = 0;
int name_valid;
xmlNsPtr nsptr = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s|s!s", &name, &name_len, &value, &value_len, &uri, &uri_len) == FAILURE) {
RETURN_THROWS();
}
name_valid = xmlValidateName(BAD_CAST name, 0);
if (name_valid != 0) {
php_dom_throw_error(INVALID_CHARACTER_ERR, true);
RETURN_THROWS();
}
/* Namespace logic is separate and only when uri passed in to insure no BC breakage */
if (uri_len > 0) {
errorcode = dom_check_qname(name, &localname, &prefix, uri_len, name_len);
if (errorcode == 0) {
nodep = xmlNewNode (NULL, BAD_CAST localname);
if (nodep != NULL && uri != NULL) {
nsptr = dom_get_ns(nodep, uri, &errorcode, prefix);
xmlSetNs(nodep, nsptr);
}
}
xmlFree(localname);
if (prefix != NULL) {
xmlFree(prefix);
}
if (errorcode != 0) {
if (nodep != NULL) {
xmlFreeNode(nodep);
}
php_dom_throw_error(errorcode, true);
RETURN_THROWS();
}
} else {
/* If you don't pass a namespace uri, then you can't set a prefix */
localname = (char *) xmlSplitQName2(BAD_CAST name, (xmlChar **) &prefix);
if (prefix != NULL) {
xmlFree(localname);
xmlFree(prefix);
php_dom_throw_error(NAMESPACE_ERR, true);
RETURN_THROWS();
}
nodep = xmlNewNode(NULL, BAD_CAST name);
}
if (!nodep) {
php_dom_throw_error(INVALID_STATE_ERR, true);
RETURN_THROWS();
}
if (value_len > 0) {
xmlNodeSetContentLen(nodep, BAD_CAST value, value_len);
}
intern = Z_DOMOBJ_P(ZEND_THIS);
oldnode = dom_object_get_node(intern);
if (oldnode != NULL) {
php_libxml_node_decrement_resource((php_libxml_node_object *)intern);
}
php_libxml_increment_node_ptr((php_libxml_node_object *)intern, nodep, (void *)intern);
}
/* }}} end DOMElement::__construct */
/* {{{ tagName string
readonly=yes
URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#core-ID-104682815
Modern spec URL: https://dom.spec.whatwg.org/#dom-element-tagname
Since:
*/
zend_result dom_element_tag_name_read(dom_object *obj, zval *retval)
{
DOM_PROP_NODE(xmlNodePtr, nodep, obj);
bool uppercase = php_dom_follow_spec_intern(obj) && php_dom_ns_is_html_and_document_is_html(nodep);
zend_string *result = dom_node_get_node_name_attribute_or_element((const xmlNode *) nodep, uppercase);
ZVAL_NEW_STR(retval, result);
return SUCCESS;
}
/* }}} */
static zend_result dom_element_reflected_attribute_read(dom_object *obj, zval *retval, const char *name)
{
DOM_PROP_NODE(xmlNodePtr, nodep, obj);
xmlChar *content = xmlGetNoNsProp(nodep, (const xmlChar *) name);
if (content == NULL) {
ZVAL_EMPTY_STRING(retval);
return SUCCESS;
}
ZVAL_STRING(retval, (const char *) content);
xmlFree(content);
return SUCCESS;
}
static xmlAttrPtr dom_element_reflected_attribute_write(dom_object *obj, zval *newval, const char *name)
{
xmlNode *nodep = dom_object_get_node(obj);
if (nodep == NULL) {
php_dom_throw_error(INVALID_STATE_ERR, true);
return NULL;
}
/* Typed property, so it is a string already */
ZEND_ASSERT(Z_TYPE_P(newval) == IS_STRING);
return xmlSetNsProp(nodep, NULL, (const xmlChar *) name, (const xmlChar *) Z_STRVAL_P(newval));
}
/* {{{ className string
URL: https://dom.spec.whatwg.org/#dom-element-classname
Since:
*/
zend_result dom_element_class_name_read(dom_object *obj, zval *retval)
{
return dom_element_reflected_attribute_read(obj, retval, "class");
}
zend_result dom_element_class_name_write(dom_object *obj, zval *newval)
{
if (dom_element_reflected_attribute_write(obj, newval, "class")) {
return SUCCESS;
}
return FAILURE;
}
/* }}} */
/* {{{ classList TokenList
URL: https://dom.spec.whatwg.org/#dom-element-classlist
*/
zend_result dom_element_class_list_read(dom_object *obj, zval *retval)
{
const uint32_t PROP_INDEX = 20;
#if ZEND_DEBUG
zend_string *class_list_str = ZSTR_INIT_LITERAL("classList", false);
const zend_property_info *prop_info = zend_get_property_info(dom_modern_element_class_entry, class_list_str, 0);
zend_string_release_ex(class_list_str, false);
ZEND_ASSERT(OBJ_PROP_TO_NUM(prop_info->offset) == PROP_INDEX);
#endif
zval *cached_token_list = OBJ_PROP_NUM(&obj->std, PROP_INDEX);
if (Z_ISUNDEF_P(cached_token_list)) {
object_init_ex(cached_token_list, dom_token_list_class_entry);
dom_token_list_object *intern = php_dom_token_list_from_obj(Z_OBJ_P(cached_token_list));
dom_token_list_ctor(intern, obj);
}
ZVAL_OBJ_COPY(retval, Z_OBJ_P(cached_token_list));
return SUCCESS;
}
/* }}} */
/* {{{ id string
URL: https://dom.spec.whatwg.org/#dom-element-id
Since:
*/
zend_result dom_element_id_read(dom_object *obj, zval *retval)
{
return dom_element_reflected_attribute_read(obj, retval, "id");
}
static void php_set_attribute_id(xmlAttrPtr attrp, bool is_id, php_libxml_ref_obj *document);
zend_result dom_element_id_write(dom_object *obj, zval *newval)
{
xmlAttrPtr attr = dom_element_reflected_attribute_write(obj, newval, "id");
if (!attr) {
return FAILURE;
}
php_set_attribute_id(attr, true, obj->document);
return SUCCESS;
}
/* }}} */
/* {{{ schemaTypeInfo typeinfo
readonly=yes
URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#Element-schemaTypeInfo
Since: DOM Level 3
*/
zend_result dom_element_schema_type_info_read(dom_object *obj, zval *retval)
{
ZVAL_NULL(retval);
return SUCCESS;
}
/* }}} */
/* Note: the object returned is not necessarily a node, but can be an attribute or a namespace declaration. */
static xmlNodePtr dom_get_attribute_or_nsdecl(dom_object *intern, xmlNodePtr elem, const xmlChar *name, size_t name_len) /* {{{ */
{
if (!php_dom_follow_spec_intern(intern)) {
int len;
const xmlChar *nqname = xmlSplitQName3(name, &len);
if (nqname != NULL) {
xmlNsPtr ns;
if (strncmp((const char *) name, "xmlns:", len + 1) == 0) {
ns = elem->nsDef;
while (ns) {
if (xmlStrEqual(ns->prefix, nqname)) {
break;
}
ns = ns->next;
}
return (xmlNodePtr)ns;
}
xmlChar *prefix = xmlStrndup(name, len);
ns = xmlSearchNs(elem->doc, elem, prefix);
if (prefix != NULL) {
xmlFree(prefix);
}
if (ns != NULL) {
return (xmlNodePtr)xmlHasNsProp(elem, nqname, ns->href);
}
} else {
if (xmlStrEqual(name, BAD_CAST "xmlns")) {
xmlNsPtr nsPtr = elem->nsDef;
while (nsPtr) {
if (nsPtr->prefix == NULL) {
return (xmlNodePtr)nsPtr;
}
nsPtr = nsPtr->next;
}
return NULL;
}
}
return (xmlNodePtr) xmlHasNsProp(elem, name, NULL);
} else {
return (xmlNodePtr) php_dom_get_attribute_node(elem, name, name_len);
}
}
/* }}} */
/* {{{ URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#core-ID-666EE0F9
Modern spec URL: https://dom.spec.whatwg.org/#dom-element-getattribute
Since:
*/
PHP_METHOD(DOMElement, getAttribute)
{
zval *id;
xmlNode *nodep;
char *name;
xmlChar *value = NULL;
dom_object *intern;
xmlNodePtr attr;
size_t name_len;
bool should_free = false;
id = ZEND_THIS;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &name, &name_len) == FAILURE) {
RETURN_THROWS();
}
DOM_GET_OBJ(nodep, id, xmlNodePtr, intern);
attr = dom_get_attribute_or_nsdecl(intern, nodep, BAD_CAST name, name_len);
if (attr) {
switch (attr->type) {
case XML_ATTRIBUTE_NODE:
value = xmlNodeListGetString(attr->doc, attr->children, 1);
should_free = true;
break;
case XML_NAMESPACE_DECL:
value = BAD_CAST ((xmlNsPtr)attr)->href;
should_free = false;
break;
default:
value = BAD_CAST ((xmlAttributePtr)attr)->defaultValue;
should_free = false;
}
}
if (value == NULL) {
if (php_dom_follow_spec_intern(intern)) {
RETURN_NULL();
}
RETURN_EMPTY_STRING();
} else {
RETVAL_STRING((char *)value);
if (should_free) {
xmlFree(value);
}
}
}
/* }}} end dom_element_get_attribute */
/* {{{ URL: https://dom.spec.whatwg.org/#dom-element-getattributenames
Since:
*/
PHP_METHOD(DOMElement, getAttributeNames)
{
zval *id;
xmlNode *nodep;
dom_object *intern;
zval tmp;
if (zend_parse_parameters_none() == FAILURE) {
RETURN_THROWS();
}
DOM_GET_THIS_OBJ(nodep, id, xmlNodePtr, intern);
array_init(return_value);
HashTable *ht = Z_ARRVAL_P(return_value);
zend_hash_real_init_packed(ht);
if (!php_dom_follow_spec_intern(intern)) {
for (xmlNsPtr nsptr = nodep->nsDef; nsptr; nsptr = nsptr->next) {
const char *prefix = (const char *) nsptr->prefix;
ZVAL_NEW_STR(&tmp, dom_node_concatenated_name_helper(strlen(prefix), prefix, strlen("xmlns"), (const char *) "xmlns"));
zend_hash_next_index_insert(ht, &tmp);
}
}
for (xmlAttrPtr attr = nodep->properties; attr; attr = attr->next) {
ZVAL_NEW_STR(&tmp, dom_node_get_node_name_attribute_or_element((const xmlNode *) attr, false));
zend_hash_next_index_insert(ht, &tmp);
}
}
/* }}} end DOMElement::getAttributeNames() */
static xmlNodePtr dom_create_attribute(xmlNodePtr nodep, const char *name, const char* value)
{
if (xmlStrEqual(BAD_CAST name, BAD_CAST "xmlns")) {
return (xmlNodePtr) xmlNewNs(nodep, BAD_CAST value, NULL);
} else {
return (xmlNodePtr) xmlSetProp(nodep, BAD_CAST name, BAD_CAST value);
}
}
static void dom_check_register_attribute_id(xmlAttrPtr attr, php_libxml_ref_obj *document)
{
dom_mark_ids_modified(document);
if (attr->atype != XML_ATTRIBUTE_ID && attr->doc->type == XML_HTML_DOCUMENT_NODE && attr->ns == NULL && xmlStrEqual(attr->name, BAD_CAST "id")) {
/* To respect XML's ID behaviour, we only do this registration for HTML documents. */
attr->atype = XML_ATTRIBUTE_ID;
}
}
/* {{{ URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#core-ID-F68F082
Modern spec URL: https://dom.spec.whatwg.org/#dom-element-setattribute
Since:
*/
PHP_METHOD(DOMElement, setAttribute)
{
zval *id;
xmlNode *nodep;
int name_valid;
size_t name_len, value_len;
dom_object *intern;
char *name, *value;
id = ZEND_THIS;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "ss", &name, &name_len, &value, &value_len) == FAILURE) {
RETURN_THROWS();
}
if (name_len == 0) {
zend_argument_value_error(1, "cannot be empty");
RETURN_THROWS();
}
name_valid = xmlValidateName(BAD_CAST name, 0);
if (name_valid != 0) {
php_dom_throw_error(INVALID_CHARACTER_ERR, true);
RETURN_THROWS();
}
DOM_GET_OBJ(nodep, id, xmlNodePtr, intern);
if (php_dom_follow_spec_intern(intern)) {
xmlChar *name_processed = BAD_CAST name;
if (php_dom_ns_is_html_and_document_is_html(nodep)) {
char *lowercase_copy = zend_str_tolower_dup_ex(name, name_len);
if (lowercase_copy != NULL) {
name_processed = BAD_CAST lowercase_copy;
}
}
/* Can't use xmlSetNsProp unconditionally here because that doesn't take into account the qualified name matching... */
xmlAttrPtr attr = php_dom_get_attribute_node(nodep, BAD_CAST name, name_len);
if (attr != NULL) {
dom_attr_value_will_change(intern, attr);
dom_remove_all_children((xmlNodePtr) attr);
xmlNodePtr node = xmlNewDocText(attr->doc, BAD_CAST value);
xmlAddChild((xmlNodePtr) attr, node);
} else {
attr = xmlSetNsProp(nodep, NULL, name_processed, BAD_CAST value);
if (EXPECTED(attr != NULL)) {
dom_check_register_attribute_id(attr, intern->document);
}
}
if (name_processed != BAD_CAST name) {
efree(name_processed);
}
} else {
xmlNodePtr attr = dom_get_attribute_or_nsdecl(intern, nodep, BAD_CAST name, name_len);
if (attr != NULL) {
switch (attr->type) {
case XML_ATTRIBUTE_NODE:
dom_attr_value_will_change(intern, (xmlAttrPtr) attr);
node_list_unlink(attr->children);
break;
case XML_NAMESPACE_DECL:
RETURN_FALSE;
EMPTY_SWITCH_DEFAULT_CASE();
}
}
attr = dom_create_attribute(nodep, name, value);
if (!attr) {
zend_argument_value_error(1, "must be a valid XML attribute");
RETURN_THROWS();
}
if (attr->type == XML_NAMESPACE_DECL) {
RETURN_TRUE;
}
DOM_RET_OBJ(attr, intern);
}
}
/* }}} end dom_element_set_attribute */
typedef struct dom_deep_ns_redef_item {
xmlNodePtr current_node;
xmlNsPtr defined_ns;
} dom_deep_ns_redef_item;
/* Reconciliation for a *single* namespace, but reconciles *closest* to the subtree needing it. */
static void dom_deep_ns_redef(xmlNodePtr node, xmlNsPtr ns_to_redefine)
{
size_t worklist_capacity = 128;
dom_deep_ns_redef_item *worklist = emalloc(sizeof(dom_deep_ns_redef_item) * worklist_capacity);
worklist[0].current_node = node;
worklist[0].defined_ns = NULL;
size_t worklist_size = 1;
while (worklist_size > 0) {
worklist_size--;
dom_deep_ns_redef_item *current_worklist_item = &worklist[worklist_size];
ZEND_ASSERT(current_worklist_item->current_node->type == XML_ELEMENT_NODE);
xmlNsPtr defined_ns = current_worklist_item->defined_ns;
if (current_worklist_item->current_node->ns == ns_to_redefine) {
if (defined_ns == NULL) {
defined_ns = xmlNewNs(current_worklist_item->current_node, ns_to_redefine->href, ns_to_redefine->prefix);
}
current_worklist_item->current_node->ns = defined_ns;
}
for (xmlAttrPtr attr = current_worklist_item->current_node->properties; attr; attr = attr->next) {
if (attr->ns == ns_to_redefine) {
if (defined_ns == NULL) {
defined_ns = xmlNewNs(current_worklist_item->current_node, ns_to_redefine->href, ns_to_redefine->prefix);
}
attr->ns = defined_ns;
}
}
for (xmlNodePtr child = current_worklist_item->current_node->children; child; child = child->next) {
if (child->type != XML_ELEMENT_NODE) {
continue;
}
if (worklist_size == worklist_capacity) {
if (UNEXPECTED(worklist_capacity >= SIZE_MAX / 3 * 2 / sizeof(dom_deep_ns_redef_item))) {
/* Shouldn't be possible to hit, but checked for safety anyway */
goto out;
}
worklist_capacity = worklist_capacity * 3 / 2;
worklist = erealloc(worklist, sizeof(dom_deep_ns_redef_item) * worklist_capacity);
}
worklist[worklist_size].current_node = child;
worklist[worklist_size].defined_ns = defined_ns;
worklist_size++;
}
}
out:
efree(worklist);
}
static bool dom_remove_attribute(xmlNodePtr thisp, xmlNodePtr attrp)
{
ZEND_ASSERT(thisp != NULL);
ZEND_ASSERT(attrp != NULL);
switch (attrp->type) {
case XML_ATTRIBUTE_NODE:
if (php_dom_object_get_data(attrp) == NULL) {
node_list_unlink(attrp->children);
xmlUnlinkNode(attrp);
xmlFreeProp((xmlAttrPtr)attrp);
} else {
xmlUnlinkNode(attrp);
}
break;
case XML_NAMESPACE_DECL: {
/* They will always be removed, but can be re-added.
*
* If any reference was left to the namespace, the only effect is that
* the definition is potentially moved closer to the element using it.
* If no reference was left, it is actually removed. */
xmlNsPtr ns = (xmlNsPtr) attrp;
if (thisp->nsDef == ns) {
thisp->nsDef = ns->next;
} else if (thisp->nsDef != NULL) {
xmlNsPtr prev = thisp->nsDef;
xmlNsPtr cur = prev->next;
while (cur) {
if (cur == ns) {
prev->next = cur->next;
break;
}
prev = cur;
cur = cur->next;
}
} else {
/* defensive: attrp not defined in thisp ??? */
#if ZEND_DEBUG
ZEND_UNREACHABLE();
#endif
break; /* defensive */
}
ns->next = NULL;
php_libxml_set_old_ns(thisp->doc, ns); /* note: can't deallocate as it might be referenced by a "fake namespace node" */
/* xmlReconciliateNs() redefines at the top of the tree instead of closest to the child, own reconciliation here.
* Similarly, the DOM version has other issues too (see dom_libxml_reconcile_ensure_namespaces_are_declared). */
dom_deep_ns_redef(thisp, ns);
break;
}
EMPTY_SWITCH_DEFAULT_CASE();
}
return true;
}
/* {{{ URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#core-ID-6D6AC0F9
Modern spec URL: https://dom.spec.whatwg.org/#dom-element-removeattribute
Since:
*/
PHP_METHOD(DOMElement, removeAttribute)
{
xmlNodePtr nodep, attrp;
dom_object *intern;
size_t name_len;
char *name;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &name, &name_len) == FAILURE) {
RETURN_THROWS();
}
DOM_GET_OBJ(nodep, ZEND_THIS, xmlNodePtr, intern);
attrp = dom_get_attribute_or_nsdecl(intern, nodep, BAD_CAST name, name_len);
if (attrp == NULL) {
RETURN_FALSE;
}
RETURN_BOOL(dom_remove_attribute(nodep, attrp));
}
PHP_METHOD(Dom_Element, removeAttribute)
{
xmlNodePtr nodep, attrp;
dom_object *intern;
size_t name_len;
char *name;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &name, &name_len) == FAILURE) {
RETURN_THROWS();
}
DOM_GET_OBJ(nodep, ZEND_THIS, xmlNodePtr, intern);
attrp = dom_get_attribute_or_nsdecl(intern, nodep, BAD_CAST name, name_len);
if (attrp != NULL) {
dom_remove_attribute(nodep, attrp);
}
}
/* }}} end dom_element_remove_attribute */
/* {{{ URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#core-ID-217A91B8
Modern spec URL: https://dom.spec.whatwg.org/#dom-element-getattributenode
Since:
*/
PHP_METHOD(DOMElement, getAttributeNode)
{
zval *id;
xmlNodePtr nodep, attrp;
size_t name_len;
dom_object *intern;
char *name;
id = ZEND_THIS;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &name, &name_len) == FAILURE) {
RETURN_THROWS();
}
DOM_GET_OBJ(nodep, id, xmlNodePtr, intern);
attrp = dom_get_attribute_or_nsdecl(intern, nodep, BAD_CAST name, name_len);
if (attrp == NULL) {
if (php_dom_follow_spec_intern(intern)) {
RETURN_NULL();
}
RETURN_FALSE;
}
if (attrp->type == XML_NAMESPACE_DECL) {
xmlNsPtr original = (xmlNsPtr) attrp;
/* Keep parent alive, because we're a fake child. */
GC_ADDREF(&intern->std);
(void) php_dom_create_fake_namespace_decl(nodep, original, return_value, intern);
} else {
DOM_RET_OBJ((xmlNodePtr) attrp, intern);
}
}
/* }}} end dom_element_get_attribute_node */
static void dom_element_set_attribute_node_common(INTERNAL_FUNCTION_PARAMETERS, bool use_ns, bool modern)
{
zval *id, *node;
xmlNode *nodep;
xmlNs *nsp;
xmlAttr *attrp, *existattrp = NULL;
dom_object *intern, *attrobj, *oldobj;
id = ZEND_THIS;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "O", &node, dom_get_node_ce(modern)) == FAILURE) {
RETURN_THROWS();
}
DOM_GET_OBJ(nodep, id, xmlNodePtr, intern);
DOM_GET_OBJ(attrp, node, xmlAttrPtr, attrobj);
/* ZPP Guarantees that a DOMAttr class is given, as it is converted to a xmlAttr
* to pass to libxml (see http://www.xmlsoft.org/html/libxml-tree.html#xmlAttr)
* if it is not of type XML_ATTRIBUTE_NODE it indicates a bug somewhere */
ZEND_ASSERT(attrp->type == XML_ATTRIBUTE_NODE);
if (modern) {
if (attrp->parent != NULL && attrp->parent != nodep) {
php_dom_throw_error(INUSE_ATTRIBUTE_ERR, /* strict */ true);
RETURN_THROWS();
}
if (attrp->doc != NULL && attrp->doc != nodep->doc) {
php_dom_adopt_node((xmlNodePtr) attrp, intern, nodep->doc);
}
} else {
if (!(attrp->doc == NULL || attrp->doc == nodep->doc)) {
php_dom_throw_error(WRONG_DOCUMENT_ERR, dom_get_strict_error(intern->document));
RETURN_FALSE;
}
}
nsp = attrp->ns;
if (use_ns && nsp != NULL) {
existattrp = xmlHasNsProp(nodep, attrp->name, nsp->href);
} else {
existattrp = xmlHasProp(nodep, attrp->name);
}
if (existattrp != NULL && existattrp->type != XML_ATTRIBUTE_DECL) {
if ((oldobj = php_dom_object_get_data((xmlNodePtr) existattrp)) != NULL &&
((php_libxml_node_ptr *)oldobj->ptr)->node == (xmlNodePtr) attrp)
{
RETURN_NULL();
}
xmlUnlinkNode((xmlNodePtr) existattrp);
}
if (attrp->parent != NULL) {
xmlUnlinkNode((xmlNodePtr) attrp);
}
if (attrp->doc == NULL && nodep->doc != NULL) {
attrobj->document = intern->document;
php_libxml_increment_doc_ref((php_libxml_node_object *)attrobj, NULL);
}
xmlAddChild(nodep, (xmlNodePtr) attrp);
if (!modern) {
dom_mark_ids_modified(intern->document);
php_dom_reconcile_attribute_namespace_after_insertion(attrp);
} else {
dom_check_register_attribute_id(attrp, intern->document);
}
/* Returns old property if removed otherwise NULL */
if (existattrp != NULL) {
DOM_RET_OBJ((xmlNodePtr) existattrp, intern);
} else {
RETURN_NULL();
}
}
/* {{{ URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#core-ID-887236154
Modern spec URL: https://dom.spec.whatwg.org/#dom-element-setattributenode
Since:
*/
PHP_METHOD(DOMElement, setAttributeNode)
{
dom_element_set_attribute_node_common(INTERNAL_FUNCTION_PARAM_PASSTHRU, /* use_ns */ false, /* modern */ false);
}
/* }}} end dom_element_set_attribute_node */
/* {{{ URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#core-ID-D589198
Since:
*/
static void dom_element_remove_attribute_node(INTERNAL_FUNCTION_PARAMETERS, zend_class_entry *node_ce)
{
zval *node;
xmlNode *nodep;
xmlAttr *attrp;
dom_object *intern, *attrobj;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "O", &node, node_ce) == FAILURE) {
RETURN_THROWS();
}
DOM_GET_OBJ(nodep, ZEND_THIS, xmlNodePtr, intern);
DOM_GET_OBJ(attrp, node, xmlAttrPtr, attrobj);
ZEND_ASSERT(attrp->type == XML_ATTRIBUTE_NODE);
if (attrp->parent != nodep) {
php_dom_throw_error(NOT_FOUND_ERR, dom_get_strict_error(intern->document));
RETURN_FALSE;
}
xmlUnlinkNode((xmlNodePtr) attrp);
DOM_RET_OBJ((xmlNodePtr) attrp, intern);
}
PHP_METHOD(DOMElement, removeAttributeNode)
{
dom_element_remove_attribute_node(INTERNAL_FUNCTION_PARAM_PASSTHRU, dom_node_class_entry);
}
PHP_METHOD(Dom_Element, removeAttributeNode)
{
dom_element_remove_attribute_node(INTERNAL_FUNCTION_PARAM_PASSTHRU, dom_modern_node_class_entry);
}
/* }}} end dom_element_remove_attribute_node */
/* {{{ URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#core-ID-1938918D
Modern spec URL: https://dom.spec.whatwg.org/#concept-getelementsbytagname
Since:
*/
static void dom_element_get_elements_by_tag_name(INTERNAL_FUNCTION_PARAMETERS, bool modern)
{
size_t name_len;
dom_object *intern, *namednode;
char *name;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &name, &name_len) == FAILURE) {
RETURN_THROWS();
}
DOM_GET_THIS_INTERN(intern);
if (modern) {
php_dom_create_iterator(return_value, DOM_HTMLCOLLECTION, true);
} else {
php_dom_create_iterator(return_value, DOM_NODELIST, false);
}
namednode = Z_DOMOBJ_P(return_value);
dom_namednode_iter(intern, 0, namednode, NULL, name, name_len, NULL, 0);
}
PHP_METHOD(DOMElement, getElementsByTagName)
{
dom_element_get_elements_by_tag_name(INTERNAL_FUNCTION_PARAM_PASSTHRU, false);
}
PHP_METHOD(Dom_Element, getElementsByTagName)
{
dom_element_get_elements_by_tag_name(INTERNAL_FUNCTION_PARAM_PASSTHRU, true);
}
/* }}} end dom_element_get_elements_by_tag_name */
/* should_free_result must be initialized to false */
static const xmlChar *dom_get_attribute_ns(dom_object *intern, xmlNodePtr elemp, const char *uri, size_t uri_len, const char *name, bool *should_free_result)
{
bool follow_spec = php_dom_follow_spec_intern(intern);
if (follow_spec && uri_len == 0) {
uri = NULL;
}
xmlChar *strattr = xmlGetNsProp(elemp, BAD_CAST name, BAD_CAST uri);
if (strattr != NULL) {
*should_free_result = true;
return strattr;
} else {
if (!follow_spec && xmlStrEqual(BAD_CAST uri, BAD_CAST DOM_XMLNS_NS_URI)) {
xmlNsPtr nsptr = dom_get_nsdecl(elemp, BAD_CAST name);
if (nsptr != NULL) {
return nsptr->href;
} else {
return NULL;
}
} else {
return NULL;
}
}
}
/* {{{ URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#core-ID-ElGetAttrNS
Modern spec URL: https://dom.spec.whatwg.org/#dom-element-getattributens
Since: DOM Level 2
*/
PHP_METHOD(DOMElement, getAttributeNS)
{
zval *id;
xmlNodePtr elemp;
dom_object *intern;
size_t uri_len = 0, name_len = 0;
char *uri, *name;
id = ZEND_THIS;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s!s", &uri, &uri_len, &name, &name_len) == FAILURE) {
RETURN_THROWS();
}
DOM_GET_OBJ(elemp, id, xmlNodePtr, intern);
bool should_free_result = false;
const xmlChar *result = dom_get_attribute_ns(intern, elemp, uri, uri_len, name, &should_free_result);
if (result == NULL) {
if (php_dom_follow_spec_intern(intern)) {
RETURN_NULL();
}
RETURN_EMPTY_STRING();
} else {
RETVAL_STRING((const char *) result);
if (should_free_result) {
xmlFree(BAD_CAST result);
}
}
}
/* }}} end dom_element_get_attribute_ns */
static void dom_set_attribute_ns_legacy(dom_object *intern, xmlNodePtr elemp, char *uri, size_t uri_len, char *name, size_t name_len, const char *value)
{
if (name_len == 0) {
zend_argument_value_error(2, "cannot be empty");
return;
}
xmlNodePtr nodep = NULL;
xmlNsPtr nsptr;
xmlAttr *attr;
char *localname = NULL, *prefix = NULL;
int is_xmlns = 0, name_valid;
bool stricterror = dom_get_strict_error(intern->document);
int errorcode = dom_check_qname(name, &localname, &prefix, uri_len, name_len);
if (errorcode == 0) {
dom_mark_ids_modified(intern->document);
if (uri_len > 0) {
nodep = (xmlNodePtr) xmlHasNsProp(elemp, BAD_CAST localname, BAD_CAST uri);
if (nodep != NULL && nodep->type != XML_ATTRIBUTE_DECL) {
node_list_unlink(nodep->children);
}
if ((xmlStrEqual(BAD_CAST prefix, BAD_CAST "xmlns") ||
(prefix == NULL && xmlStrEqual(BAD_CAST localname, BAD_CAST "xmlns"))) &&
xmlStrEqual(BAD_CAST uri, BAD_CAST DOM_XMLNS_NS_URI)) {
is_xmlns = 1;
if (prefix == NULL) {
nsptr = dom_get_nsdecl(elemp, NULL);
} else {
nsptr = dom_get_nsdecl(elemp, BAD_CAST localname);
}
} else {
nsptr = xmlSearchNsByHref(elemp->doc, elemp, BAD_CAST uri);
if (nsptr && nsptr->prefix == NULL) {
xmlNsPtr tmpnsptr;
tmpnsptr = nsptr->next;
while (tmpnsptr) {
if ((tmpnsptr->prefix != NULL) && (tmpnsptr->href != NULL) &&
(xmlStrEqual(tmpnsptr->href, BAD_CAST uri))) {
nsptr = tmpnsptr;
break;
}
tmpnsptr = tmpnsptr->next;
}
if (tmpnsptr == NULL) {
nsptr = dom_get_ns_resolve_prefix_conflict(elemp, (const char *) nsptr->href);
}
}
}
if (nsptr == NULL) {
if (is_xmlns == 1) {
xmlNewNs(elemp, BAD_CAST value, prefix == NULL ? NULL : BAD_CAST localname);
} else {
nsptr = dom_get_ns(elemp, uri, &errorcode, prefix);
}
xmlReconciliateNs(elemp->doc, elemp);
} else {
if (is_xmlns == 1) {
if (nsptr->href) {
xmlFree(BAD_CAST nsptr->href);
}
nsptr->href = xmlStrdup(BAD_CAST value);
}
}
if (errorcode == 0 && is_xmlns == 0) {
xmlSetNsProp(elemp, nsptr, BAD_CAST localname, BAD_CAST value);
}
} else {
name_valid = xmlValidateName(BAD_CAST localname, 0);
if (name_valid != 0) {
errorcode = INVALID_CHARACTER_ERR;
stricterror = 1;
} else {
attr = xmlHasProp(elemp, BAD_CAST localname);
if (attr != NULL && attr->type != XML_ATTRIBUTE_DECL) {
node_list_unlink(attr->children);
}
xmlSetProp(elemp, BAD_CAST localname, BAD_CAST value);
}
}
}
xmlFree(localname);
if (prefix != NULL) {
xmlFree(prefix);
}
if (errorcode != 0) {
php_dom_throw_error(errorcode, stricterror);
}
}