/**
* xsltElementAvailableFunction:
* @ctxt: the XPath Parser context
* @nargs: the number of arguments
*
* Implement the element-available() XSLT function
* boolean element-available(string)
*/
void
xsltElementAvailableFunction(xmlXPathParserContextPtr ctxt, int nargs){
xmlXPathObjectPtr obj;
xmlChar *prefix, *name;
const xmlChar *nsURI = NULL;
xsltTransformContextPtr tctxt;
if (nargs != 1) {
xsltTransformError(xsltXPathGetTransformContext(ctxt), NULL, NULL,
"element-available() : expects one string arg\n");
ctxt->error = XPATH_INVALID_ARITY;
return;
}
xmlXPathStringFunction(ctxt, 1);
if ((ctxt->value == NULL) || (ctxt->value->type != XPATH_STRING)) {
xsltTransformError(xsltXPathGetTransformContext(ctxt), NULL, NULL,
"element-available() : invalid arg expecting a string\n");
ctxt->error = XPATH_INVALID_TYPE;
return;
}
obj = valuePop(ctxt);
tctxt = xsltXPathGetTransformContext(ctxt);
if (tctxt == NULL) {
xsltTransformError(xsltXPathGetTransformContext(ctxt), NULL, NULL,
"element-available() : internal error tctxt == NULL\n");
xmlXPathFreeObject(obj);
valuePush(ctxt, xmlXPathNewBoolean(0));
return;
}
name = xmlSplitQName2(obj->stringval, &prefix);
if (name == NULL) {
xmlNsPtr ns;
name = xmlStrdup(obj->stringval);
ns = xmlSearchNs(tctxt->inst->doc, tctxt->inst, NULL);
if (ns != NULL) nsURI = xmlStrdup(ns->href);
} else {
nsURI = xmlXPathNsLookup(ctxt->context, prefix);
if (nsURI == NULL) {
xsltTransformError(xsltXPathGetTransformContext(ctxt), NULL, NULL,
"element-available() : prefix %s is not bound\n", prefix);
}
}
if (xsltExtElementLookup(tctxt, name, nsURI) != NULL) {
valuePush(ctxt, xmlXPathNewBoolean(1));
} else {
valuePush(ctxt, xmlXPathNewBoolean(0));
}
xmlXPathFreeObject(obj);
if (name != NULL)
xmlFree(name);
if (prefix != NULL)
xmlFree(prefix);
}
/**
* xsltFunctionAvailableFunction:
* @ctxt: the XPath Parser context
* @nargs: the number of arguments
*
* Implement the function-available() XSLT function
* boolean function-available(string)
*/
void
xsltFunctionAvailableFunction(xmlXPathParserContextPtr ctxt, int nargs){
xmlXPathObjectPtr obj;
xmlChar *prefix, *name;
const xmlChar *nsURI = NULL;
if (nargs != 1) {
xsltPrintErrorContext(xsltXPathGetTransformContext(ctxt), NULL, NULL);
xsltGenericError(xsltGenericErrorContext,
"function-available() : expects one string arg\n");
ctxt->error = XPATH_INVALID_ARITY;
return;
}
if ((ctxt->value == NULL) || (ctxt->value->type != XPATH_STRING)) {
xsltPrintErrorContext(xsltXPathGetTransformContext(ctxt), NULL, NULL);
xsltGenericError(xsltGenericErrorContext,
"function-available() : invalid arg expecting a string\n");
ctxt->error = XPATH_INVALID_TYPE;
return;
}
obj = valuePop(ctxt);
name = xmlSplitQName2(obj->stringval, &prefix);
if (name == NULL) {
name = xmlStrdup(obj->stringval);
} else {
nsURI = xmlXPathNsLookup(ctxt->context, prefix);
if (nsURI == NULL) {
xsltPrintErrorContext(xsltXPathGetTransformContext(ctxt),
NULL, NULL);
xsltGenericError(xsltGenericErrorContext,
"function-available() : prefix %s is not bound\n", prefix);
}
}
if (xmlXPathFunctionLookupNS(ctxt->context, name, nsURI) != NULL) {
valuePush(ctxt, xmlXPathNewBoolean(1));
} else {
valuePush(ctxt, xmlXPathNewBoolean(0));
}
xmlXPathFreeObject(obj);
if (name != NULL)
xmlFree(name);
if (prefix != NULL)
xmlFree(prefix);
}
void
RXSLT_source(xmlXPathParserContextPtr ctxt, int nargs)
{
Rboolean ok;
xmlXPathObjectPtr obj;
obj = valuePop(ctxt);
ok = RXSLT_internalSource(xmlXPathCastToString(obj));
valuePush(ctxt, xmlXPathNewBoolean(ok));
}
void
RXSLT_init(xmlXPathParserContextPtr ctxt, int nargs)
{
const char *defaultArgs[] = {"Rxsltproc", "--silent"};
char **args;
int argc, i;
int mustFree;
if(R_alreadyInitialized)
return;
#ifdef XSLT_DEBUG
fprintf(stderr, "in RXSLT_init %d\n", nargs);fflush(stderr);
#endif
if(nargs == 0) {
argc = sizeof(defaultArgs)/sizeof(defaultArgs[0]);
args = (char **)defaultArgs;
} else {
args = (char **) malloc((nargs+1) * sizeof(char*));
args[0] = strdup("Rxsltproc");
argc = nargs+1;
for(i = 0; i < nargs; i++) {
xmlXPathObjectPtr obj = valuePop(ctxt);
if(obj->type) {
args[i+1] = strdup(xmlXPathCastToString(obj));
}
}
mustFree = TRUE;
}
Rf_initEmbeddedR(argc, args);
loadXSLPackage();
valuePush(ctxt, xmlXPathNewBoolean(1));
if(mustFree) {
for(i = 0; i < nargs+1; i++) {
free(args[i]);
}
free(args);
}
#if DEBUG_REGISTRATION
xsltRegisterExtFunction(getTransformCtxt(), "foo", R_URI, RXSLT_genericFunctionCall);
RXSLT_addFunction("foo", NULL_USER_OBJECT);
#endif
R_alreadyInitialized = 1;
return;
}
xmlXPathObjectPtr
rxml_xpath_from_value(VALUE value) {
xmlXPathObjectPtr result = NULL;
switch (TYPE(value)) {
case T_TRUE:
case T_FALSE:
result = xmlXPathNewBoolean(RTEST(value));
break;
case T_FIXNUM:
case T_FLOAT:
result = xmlXPathNewFloat(NUM2DBL(value));
break;
case T_STRING:
result = xmlXPathWrapString(xmlStrdup((const xmlChar *)StringValuePtr(value)));
break;
case T_NIL:
result = xmlXPathNewNodeSet(NULL);
break;
case T_ARRAY: {
long i, j;
result = xmlXPathNewNodeSet(NULL);
for (i = RARRAY_LEN(value); i > 0; i--) {
xmlXPathObjectPtr obj = rxml_xpath_from_value(rb_ary_shift(value));
if ((obj->nodesetval != NULL) && (obj->nodesetval->nodeNr != 0)) {
for (j = 0; j < obj->nodesetval->nodeNr; j++) {
xmlXPathNodeSetAdd(result->nodesetval, obj->nodesetval->nodeTab[j]);
}
}
}
break;
}
default:
rb_raise(rb_eTypeError,
"can't convert object of type %s to XPath object", rb_obj_classname(value)
);
}
return result;
}
static void xsl_ext_function_php(xmlXPathParserContextPtr ctxt, int nargs, int type) /* {{{ */
{
xsltTransformContextPtr tctxt;
zval *args;
zval retval;
int result, i;
int error = 0;
zend_fcall_info fci;
zval handler;
xmlXPathObjectPtr obj;
char *str;
xsl_object *intern;
zend_string *callable = NULL;
if (! zend_is_executing()) {
xsltGenericError(xsltGenericErrorContext,
"xsltExtFunctionTest: Function called from outside of PHP\n");
error = 1;
} else {
tctxt = xsltXPathGetTransformContext(ctxt);
if (tctxt == NULL) {
xsltGenericError(xsltGenericErrorContext,
"xsltExtFunctionTest: failed to get the transformation context\n");
error = 1;
} else {
intern = (xsl_object*)tctxt->_private;
if (intern == NULL) {
xsltGenericError(xsltGenericErrorContext,
"xsltExtFunctionTest: failed to get the internal object\n");
error = 1;
}
else if (intern->registerPhpFunctions == 0) {
xsltGenericError(xsltGenericErrorContext,
"xsltExtFunctionTest: PHP Object did not register PHP functions\n");
error = 1;
}
}
}
if (error == 1) {
for (i = nargs - 1; i >= 0; i--) {
obj = valuePop(ctxt);
xmlXPathFreeObject(obj);
}
return;
}
fci.param_count = nargs - 1;
if (fci.param_count > 0) {
args = safe_emalloc(fci.param_count, sizeof(zval), 0);
}
/* Reverse order to pop values off ctxt stack */
for (i = nargs - 2; i >= 0; i--) {
obj = valuePop(ctxt);
switch (obj->type) {
case XPATH_STRING:
ZVAL_STRING(&args[i], (char *)obj->stringval);
break;
case XPATH_BOOLEAN:
ZVAL_BOOL(&args[i], obj->boolval);
break;
case XPATH_NUMBER:
ZVAL_DOUBLE(&args[i], obj->floatval);
break;
case XPATH_NODESET:
if (type == 1) {
str = (char*)xmlXPathCastToString(obj);
ZVAL_STRING(&args[i], str);
xmlFree(str);
} else if (type == 2) {
int j;
dom_object *domintern = (dom_object *)intern->doc;
array_init(&args[i]);
if (obj->nodesetval && obj->nodesetval->nodeNr > 0) {
for (j = 0; j < obj->nodesetval->nodeNr; j++) {
xmlNodePtr node = obj->nodesetval->nodeTab[j];
zval child;
/* not sure, if we need this... it's copied from xpath.c */
if (node->type == XML_NAMESPACE_DECL) {
xmlNsPtr curns;
xmlNodePtr nsparent;
nsparent = node->_private;
curns = xmlNewNs(NULL, node->name, NULL);
if (node->children) {
curns->prefix = xmlStrdup((char *)node->children);
}
if (node->children) {
node = xmlNewDocNode(node->doc, NULL, (char *) node->children, node->name);
} else {
node = xmlNewDocNode(node->doc, NULL, (const xmlChar *) "xmlns", node->name);
}
node->type = XML_NAMESPACE_DECL;
node->parent = nsparent;
node->ns = curns;
} else {
node = xmlDocCopyNodeList(domintern->document->ptr, node);
}
php_dom_create_object(node, &child, domintern);
add_next_index_zval(&args[i], &child);
}
}
}
break;
default:
str = (char *) xmlXPathCastToString(obj);
ZVAL_STRING(&args[i], str);
xmlFree(str);
}
xmlXPathFreeObject(obj);
}
fci.size = sizeof(fci);
fci.function_table = EG(function_table);
if (fci.param_count > 0) {
fci.params = args;
} else {
fci.params = NULL;
}
obj = valuePop(ctxt);
if (obj->stringval == NULL) {
php_error_docref(NULL, E_WARNING, "Handler name must be a string");
xmlXPathFreeObject(obj);
valuePush(ctxt, xmlXPathNewString((const xmlChar *) ""));
if (fci.param_count > 0) {
for (i = 0; i < nargs - 1; i++) {
zval_ptr_dtor(&args[i]);
}
efree(args);
}
return;
}
ZVAL_STRING(&handler, (char *) obj->stringval);
xmlXPathFreeObject(obj);
ZVAL_COPY_VALUE(&fci.function_name, &handler);
fci.symbol_table = NULL;
fci.object = NULL;
fci.retval = &retval;
fci.no_separation = 0;
/*fci.function_handler_cache = &function_ptr;*/
if (!zend_make_callable(&handler, &callable)) {
php_error_docref(NULL, E_WARNING, "Unable to call handler %s()", ZSTR_VAL(callable));
valuePush(ctxt, xmlXPathNewString((const xmlChar *) ""));
} else if ( intern->registerPhpFunctions == 2 && zend_hash_exists(intern->registered_phpfunctions, callable) == 0) {
php_error_docref(NULL, E_WARNING, "Not allowed to call handler '%s()'", ZSTR_VAL(callable));
/* Push an empty string, so that we at least have an xslt result... */
valuePush(ctxt, xmlXPathNewString((const xmlChar *) ""));
} else {
result = zend_call_function(&fci, NULL);
if (result == FAILURE) {
if (Z_TYPE(handler) == IS_STRING) {
php_error_docref(NULL, E_WARNING, "Unable to call handler %s()", Z_STRVAL(handler));
valuePush(ctxt, xmlXPathNewString((const xmlChar *) ""));
}
/* retval is == NULL, when an exception occurred, don't report anything, because PHP itself will handle that */
} else if (Z_ISUNDEF(retval)) {
} else {
if (Z_TYPE(retval) == IS_OBJECT && instanceof_function(Z_OBJCE(retval), dom_node_class_entry)) {
xmlNode *nodep;
dom_object *obj;
if (intern->node_list == NULL) {
ALLOC_HASHTABLE(intern->node_list);
zend_hash_init(intern->node_list, 0, NULL, ZVAL_PTR_DTOR, 0);
}
Z_ADDREF(retval);
zend_hash_next_index_insert(intern->node_list, &retval);
obj = Z_DOMOBJ_P(&retval);
nodep = dom_object_get_node(obj);
valuePush(ctxt, xmlXPathNewNodeSet(nodep));
} else if (Z_TYPE(retval) == IS_TRUE || Z_TYPE(retval) == IS_FALSE) {
valuePush(ctxt, xmlXPathNewBoolean(Z_LVAL(retval)));
} else if (Z_TYPE(retval) == IS_OBJECT) {
php_error_docref(NULL, E_WARNING, "A PHP Object cannot be converted to a XPath-string");
valuePush(ctxt, xmlXPathNewString((const xmlChar *) ""));
} else {
convert_to_string_ex(&retval);
valuePush(ctxt, xmlXPathNewString((xmlChar *) Z_STRVAL(retval)));
}
zval_ptr_dtor(&retval);
}
}
zend_string_release(callable);
zval_ptr_dtor(&handler);
if (fci.param_count > 0) {
for (i = 0; i < nargs - 1; i++) {
zval_ptr_dtor(&args[i]);
}
efree(args);
}
}
static void dom_xpath_ext_function_php(xmlXPathParserContextPtr ctxt, int nargs, int type) /* {{{ */
{
zval retval;
int result, i;
int error = 0;
zend_fcall_info fci;
xmlXPathObjectPtr obj;
char *str;
zend_string *callable = NULL;
dom_xpath_object *intern;
if (! zend_is_executing()) {
xmlGenericError(xmlGenericErrorContext,
"xmlExtFunctionTest: Function called from outside of PHP\n");
error = 1;
} else {
intern = (dom_xpath_object *) ctxt->context->userData;
if (intern == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlExtFunctionTest: failed to get the internal object\n");
error = 1;
}
else if (intern->registerPhpFunctions == 0) {
xmlGenericError(xmlGenericErrorContext,
"xmlExtFunctionTest: PHP Object did not register PHP functions\n");
error = 1;
}
}
if (error == 1) {
for (i = nargs - 1; i >= 0; i--) {
obj = valuePop(ctxt);
xmlXPathFreeObject(obj);
}
return;
}
fci.param_count = nargs - 1;
if (fci.param_count > 0) {
fci.params = safe_emalloc(fci.param_count, sizeof(zval), 0);
}
/* Reverse order to pop values off ctxt stack */
for (i = nargs - 2; i >= 0; i--) {
obj = valuePop(ctxt);
switch (obj->type) {
case XPATH_STRING:
ZVAL_STRING(&fci.params[i], (char *)obj->stringval);
break;
case XPATH_BOOLEAN:
ZVAL_BOOL(&fci.params[i], obj->boolval);
break;
case XPATH_NUMBER:
ZVAL_DOUBLE(&fci.params[i], obj->floatval);
break;
case XPATH_NODESET:
if (type == 1) {
str = (char *)xmlXPathCastToString(obj);
ZVAL_STRING(&fci.params[i], str);
xmlFree(str);
} else if (type == 2) {
int j;
array_init(&fci.params[i]);
if (obj->nodesetval && obj->nodesetval->nodeNr > 0) {
for (j = 0; j < obj->nodesetval->nodeNr; j++) {
xmlNodePtr node = obj->nodesetval->nodeTab[j];
zval child;
/* not sure, if we need this... it's copied from xpath.c */
if (node->type == XML_NAMESPACE_DECL) {
xmlNsPtr curns;
xmlNodePtr nsparent;
nsparent = node->_private;
curns = xmlNewNs(NULL, node->name, NULL);
if (node->children) {
curns->prefix = xmlStrdup((xmlChar *) node->children);
}
if (node->children) {
node = xmlNewDocNode(node->doc, NULL, (xmlChar *) node->children, node->name);
} else {
node = xmlNewDocNode(node->doc, NULL, (xmlChar *) "xmlns", node->name);
}
node->type = XML_NAMESPACE_DECL;
node->parent = nsparent;
node->ns = curns;
}
php_dom_create_object(node, &child, &intern->dom);
add_next_index_zval(&fci.params[i], &child);
}
}
}
break;
default:
ZVAL_STRING(&fci.params[i], (char *)xmlXPathCastToString(obj));
}
xmlXPathFreeObject(obj);
}
fci.size = sizeof(fci);
fci.function_table = EG(function_table);
obj = valuePop(ctxt);
if (obj->stringval == NULL) {
php_error_docref(NULL, E_WARNING, "Handler name must be a string");
xmlXPathFreeObject(obj);
if (fci.param_count > 0) {
for (i = 0; i < nargs - 1; i++) {
zval_ptr_dtor(&fci.params[i]);
}
efree(fci.params);
}
return;
}
ZVAL_STRING(&fci.function_name, (char *) obj->stringval);
xmlXPathFreeObject(obj);
fci.symbol_table = NULL;
fci.object = NULL;
fci.retval = &retval;
fci.no_separation = 0;
if (!zend_make_callable(&fci.function_name, &callable)) {
php_error_docref(NULL, E_WARNING, "Unable to call handler %s()", callable->val);
} else if (intern->registerPhpFunctions == 2 && zend_hash_exists(intern->registered_phpfunctions, callable) == 0) {
php_error_docref(NULL, E_WARNING, "Not allowed to call handler '%s()'.", callable->val);
/* Push an empty string, so that we at least have an xslt result... */
valuePush(ctxt, xmlXPathNewString((xmlChar *)""));
} else {
result = zend_call_function(&fci, NULL);
if (result == SUCCESS && Z_TYPE(retval) != IS_UNDEF) {
if (Z_TYPE(retval) == IS_OBJECT && instanceof_function(Z_OBJCE(retval), dom_node_class_entry)) {
xmlNode *nodep;
dom_object *obj;
if (intern->node_list == NULL) {
ALLOC_HASHTABLE(intern->node_list);
zend_hash_init(intern->node_list, 0, NULL, ZVAL_PTR_DTOR, 0);
}
GC_REFCOUNT(&retval)++;
zend_hash_next_index_insert(intern->node_list, &retval);
obj = Z_DOMOBJ_P(&retval);
nodep = dom_object_get_node(obj);
valuePush(ctxt, xmlXPathNewNodeSet(nodep));
} else if (Z_TYPE(retval) == IS_FALSE || Z_TYPE(retval) == IS_TRUE) {
valuePush(ctxt, xmlXPathNewBoolean(Z_TYPE(retval) == IS_TRUE));
} else if (Z_TYPE(retval) == IS_OBJECT) {
php_error_docref(NULL, E_WARNING, "A PHP Object cannot be converted to a XPath-string");
valuePush(ctxt, xmlXPathNewString((xmlChar *)""));
} else {
zend_string *str = zval_get_string(&retval);
valuePush(ctxt, xmlXPathNewString((xmlChar *) str->val));
zend_string_release(str);
}
zval_ptr_dtor(&retval);
}
}
zend_string_release(callable);
zval_dtor(&fci.function_name);
if (fci.param_count > 0) {
for (i = 0; i < nargs - 1; i++) {
zval_ptr_dtor(&fci.params[i]);
}
efree(fci.params);
}
}
static void xslt_ext_function_php(xmlXPathParserContextPtr ctxt,
int nargs,
int type) {
XSLTProcessorData *intern = nullptr;
int error = 0;
xsltTransformContextPtr tctxt = xsltXPathGetTransformContext (ctxt);
if (tctxt == nullptr) {
xsltGenericError(xsltGenericErrorContext,
"xsltExtFunctionTest: failed to get the transformation context\n"
);
error = 1;
} else {
intern = (XSLTProcessorData*)tctxt->_private;
if (intern == nullptr) {
xsltGenericError(xsltGenericErrorContext,
"xsltExtFunctionTest: failed to get the internal object\n"
);
error = 1;
} else {
if (intern->m_registerPhpFunctions == 0) {
xsltGenericError(xsltGenericErrorContext,
"xsltExtFunctionTest: PHP Object did not register PHP functions\n"
);
error = 1;
}
}
}
xmlXPathObjectPtr obj;
if (error == 1) {
for (int i = nargs - 1; i >= 0; i--) {
obj = valuePop(ctxt);
xmlXPathFreeObject(obj);
}
return;
}
Array args;
// Reverse order to pop values off ctxt stack
for (int i = nargs - 2; i >= 0; i--) {
Variant arg;
obj = valuePop(ctxt);
switch (obj->type) {
case XPATH_STRING:
arg = String((char*)obj->stringval, CopyString);
break;
case XPATH_BOOLEAN:
arg = (bool)obj->boolval;
break;
case XPATH_NUMBER:
arg = (double)obj->floatval;
break;
case XPATH_NODESET:
if (type == 1) {
char *str = (char*)xmlXPathCastToString(obj);
arg = String(str, CopyString);
xmlFree(str);
} else if (type == 2) {
arg = Array::Create();
if (obj->nodesetval && obj->nodesetval->nodeNr > 0) {
for (int j = 0; j < obj->nodesetval->nodeNr; j++) {
// TODO: not sure this is the right thing to do.
xmlNodePtr node = obj->nodesetval->nodeTab[j];
if (node->type == XML_ELEMENT_NODE) {
Object element = newNode(s_DOMElement,
xmlCopyNode(node, /*extended*/ 1));
arg.toArrRef().append(element);
} else if (node->type == XML_ATTRIBUTE_NODE) {
Object attribute =
newNode(s_DOMAttr,
(xmlNodePtr)xmlCopyProp(nullptr, (xmlAttrPtr)node));
arg.toArrRef().append(attribute);
} else if (node->type == XML_TEXT_NODE) {
Object text =
newNode(s_DOMText,
(xmlNodePtr)xmlNewText(xmlNodeGetContent(node)));
arg.toArrRef().append(text);
} else {
raise_warning("Unhandled node type '%d'", node->type);
// Use a generic DOMNode as fallback for now.
Object nodeobj = newNode(s_DOMNode,
xmlCopyNode(node, /*extended*/ 1));
arg.toArrRef().append(nodeobj);
}
}
}
}
break;
default:
arg = String((char*)xmlXPathCastToString(obj), CopyString);
}
xmlXPathFreeObject(obj);
args.prepend(arg);
}
obj = valuePop(ctxt);
if (obj->stringval == nullptr) {
raise_warning("Handler name must be a string");
xmlXPathFreeObject(obj);
// Push an empty string to get an xslt result.
valuePush(ctxt, xmlXPathNewString((xmlChar*)""));
return;
}
String handler((char*)obj->stringval, CopyString);
xmlXPathFreeObject(obj);
if (!HHVM_FN(is_callable)(handler)) {
raise_warning("Unable to call handler %s()", handler.data());
// Push an empty string to get an xslt result.
valuePush(ctxt, xmlXPathNewString((xmlChar*)""));
} else if (intern->m_registerPhpFunctions == 2 &&
!intern->m_registered_phpfunctions.exists(handler)) {
raise_warning("Not allowed to call handler '%s()'", handler.data());
// Push an empty string to get an xslt result.
valuePush(ctxt, xmlXPathNewString((xmlChar*)""));
} else {
Variant retval = vm_call_user_func(handler, args);
if (retval.isObject() &&
retval.getObjectData()->instanceof(s_DOMNode)) {
ObjectData *retval_data = retval.asCObjRef().get();
xmlNode* nodep = Native::data<DOMNode>(retval_data)->nodep();
valuePush(ctxt, xmlXPathNewNodeSet(nodep));
intern->m_usedElements.prepend(retval);
} else if (retval.is(KindOfBoolean)) {
valuePush(ctxt, xmlXPathNewBoolean(retval.toBoolean()));
} else if (retval.isObject()) {
raise_warning("A PHP Object cannot be converted to an XPath-string");
// Push an empty string to get an xslt result.
valuePush(ctxt, xmlXPathNewString((xmlChar*)""));
} else {
String sretval = retval.toString();
valuePush(ctxt, xmlXPathNewString((xmlChar*)sretval.data()));
}
}
}
static void dom_xpath_ext_function_php(xmlXPathParserContextPtr ctxt, int nargs, int type) /* {{{ */
{
zval **args = NULL;
zval *retval;
int result, i, ret;
int error = 0;
zend_fcall_info fci;
zval handler;
xmlXPathObjectPtr obj;
char *str;
char *callable = NULL;
dom_xpath_object *intern;
TSRMLS_FETCH();
if (! zend_is_executing(TSRMLS_C)) {
xmlGenericError(xmlGenericErrorContext,
"xmlExtFunctionTest: Function called from outside of PHP\n");
error = 1;
} else {
intern = (dom_xpath_object *) ctxt->context->userData;
if (intern == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlExtFunctionTest: failed to get the internal object\n");
error = 1;
}
else if (intern->registerPhpFunctions == 0) {
xmlGenericError(xmlGenericErrorContext,
"xmlExtFunctionTest: PHP Object did not register PHP functions\n");
error = 1;
}
}
if (error == 1) {
for (i = nargs - 1; i >= 0; i--) {
obj = valuePop(ctxt);
xmlXPathFreeObject(obj);
}
return;
}
fci.param_count = nargs - 1;
if (fci.param_count > 0) {
fci.params = safe_emalloc(fci.param_count, sizeof(zval**), 0);
args = safe_emalloc(fci.param_count, sizeof(zval *), 0);
}
/* Reverse order to pop values off ctxt stack */
for (i = nargs - 2; i >= 0; i--) {
obj = valuePop(ctxt);
MAKE_STD_ZVAL(args[i]);
switch (obj->type) {
case XPATH_STRING:
ZVAL_STRING(args[i], (char *)obj->stringval, 1);
break;
case XPATH_BOOLEAN:
ZVAL_BOOL(args[i], obj->boolval);
break;
case XPATH_NUMBER:
ZVAL_DOUBLE(args[i], obj->floatval);
break;
case XPATH_NODESET:
if (type == 1) {
str = (char *)xmlXPathCastToString(obj);
ZVAL_STRING(args[i], str, 1);
xmlFree(str);
} else if (type == 2) {
int j;
array_init(args[i]);
if (obj->nodesetval && obj->nodesetval->nodeNr > 0) {
for (j = 0; j < obj->nodesetval->nodeNr; j++) {
xmlNodePtr node = obj->nodesetval->nodeTab[j];
zval *child;
MAKE_STD_ZVAL(child);
/* not sure, if we need this... it's copied from xpath.c */
if (node->type == XML_NAMESPACE_DECL) {
xmlNsPtr curns;
xmlNodePtr nsparent;
nsparent = node->_private;
curns = xmlNewNs(NULL, node->name, NULL);
if (node->children) {
curns->prefix = xmlStrdup((xmlChar *) node->children);
}
if (node->children) {
node = xmlNewDocNode(node->doc, NULL, (xmlChar *) node->children, node->name);
} else {
node = xmlNewDocNode(node->doc, NULL, (xmlChar *) "xmlns", node->name);
}
node->type = XML_NAMESPACE_DECL;
node->parent = nsparent;
node->ns = curns;
}
child = php_dom_create_object(node, &ret, child, (dom_object *)intern TSRMLS_CC);
add_next_index_zval(args[i], child);
}
}
}
break;
default:
ZVAL_STRING(args[i], (char *)xmlXPathCastToString(obj), 1);
}
xmlXPathFreeObject(obj);
fci.params[i] = &args[i];
}
fci.size = sizeof(fci);
fci.function_table = EG(function_table);
obj = valuePop(ctxt);
if (obj->stringval == NULL) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Handler name must be a string");
xmlXPathFreeObject(obj);
if (fci.param_count > 0) {
for (i = 0; i < nargs - 1; i++) {
zval_ptr_dtor(&args[i]);
}
efree(args);
efree(fci.params);
}
return;
}
INIT_PZVAL(&handler);
ZVAL_STRING(&handler, obj->stringval, 1);
xmlXPathFreeObject(obj);
fci.function_name = &handler;
fci.symbol_table = NULL;
fci.object_ptr = NULL;
fci.retval_ptr_ptr = &retval;
fci.no_separation = 0;
if (!zend_make_callable(&handler, &callable TSRMLS_CC)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to call handler %s()", callable);
} else if ( intern->registerPhpFunctions == 2 && zend_hash_exists(intern->registered_phpfunctions, callable, strlen(callable) + 1) == 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Not allowed to call handler '%s()'.", callable);
/* Push an empty string, so that we at least have an xslt result... */
valuePush(ctxt, xmlXPathNewString((xmlChar *)""));
} else {
result = zend_call_function(&fci, NULL TSRMLS_CC);
if (result == FAILURE) {
if (Z_TYPE(handler) == IS_STRING) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to call handler %s()", Z_STRVAL_P(&handler));
}
/* retval is == NULL, when an exception occurred, don't report anything, because PHP itself will handle that */
} else if (retval == NULL) {
} else {
if (retval->type == IS_OBJECT && instanceof_function( Z_OBJCE_P(retval), dom_node_class_entry TSRMLS_CC)) {
xmlNode *nodep;
dom_object *obj;
if (intern->node_list == NULL) {
ALLOC_HASHTABLE(intern->node_list);
zend_hash_init(intern->node_list, 0, NULL, ZVAL_PTR_DTOR, 0);
}
zval_add_ref(&retval);
zend_hash_next_index_insert(intern->node_list, &retval, sizeof(zval *), NULL);
obj = (dom_object *)zend_object_store_get_object(retval TSRMLS_CC);
nodep = dom_object_get_node(obj);
valuePush(ctxt, xmlXPathNewNodeSet(nodep));
} else if (retval->type == IS_BOOL) {
valuePush(ctxt, xmlXPathNewBoolean(retval->value.lval));
} else if (retval->type == IS_OBJECT) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "A PHP Object cannot be converted to a XPath-string");
valuePush(ctxt, xmlXPathNewString((xmlChar *)""));
} else {
convert_to_string_ex(&retval);
valuePush(ctxt, xmlXPathNewString( Z_STRVAL_P(retval)));
}
zval_ptr_dtor(&retval);
}
}
efree(callable);
zval_dtor(&handler);
if (fci.param_count > 0) {
for (i = 0; i < nargs - 1; i++) {
zval_ptr_dtor(&args[i]);
}
efree(args);
efree(fci.params);
}
}
