static int
xmlSecAppAddIDAttr(xmlNodePtr node, const xmlChar* attrName, const xmlChar* nodeName, const xmlChar* nsHref) {
xmlAttrPtr attr, tmpAttr;
xmlNodePtr cur;
xmlChar* id;
if((node == NULL) || (attrName == NULL) || (nodeName == NULL)) {
return(-1);
}
/* process children first because it does not matter much but does simplify code */
cur = xmlSecGetNextElementNode(node->children);
while(cur != NULL) {
if(xmlSecAppAddIDAttr(cur, attrName, nodeName, nsHref) < 0) {
return(-1);
}
cur = xmlSecGetNextElementNode(cur->next);
}
/* node name must match */
if(!xmlStrEqual(node->name, nodeName)) {
return(0);
}
/* if nsHref is set then it also should match */
if((nsHref != NULL) && (node->ns != NULL) && (!xmlStrEqual(nsHref, node->ns->href))) {
return(0);
}
/* the attribute with name equal to attrName should exist */
for(attr = node->properties; attr != NULL; attr = attr->next) {
if(xmlStrEqual(attr->name, attrName)) {
break;
}
}
if(attr == NULL) {
return(0);
}
/* and this attr should have a value */
id = xmlNodeListGetString(node->doc, attr->children, 1);
if(id == NULL) {
return(0);
}
/* check that we don't have same ID already */
tmpAttr = xmlGetID(node->doc, id);
if(tmpAttr == NULL) {
xmlAddID(NULL, node->doc, id, attr);
} else if(tmpAttr != attr) {
fprintf(stderr, "XmlSecError: duplicate ID attribute \"%s\"\n", id);
xmlFree(id);
return(-1);
}
xmlFree(id);
return(0);
}
void XSLStyleSheet::loadChildSheets()
{
if (!document())
return;
xmlNodePtr stylesheetRoot = document()->children;
// Top level children may include other things such as DTD nodes, we ignore
// those.
while (stylesheetRoot && stylesheetRoot->type != XML_ELEMENT_NODE)
stylesheetRoot = stylesheetRoot->next;
if (m_embedded) {
// We have to locate (by ID) the appropriate embedded stylesheet
// element, so that we can walk the import/include list.
xmlAttrPtr idNode = xmlGetID(document(), (const xmlChar*)(finalURL().string().utf8().data()));
if (!idNode)
return;
stylesheetRoot = idNode->parent;
} else {
// FIXME: Need to handle an external URI with a # in it. This is a
// pretty minor edge case, so we'll deal with it later.
}
if (stylesheetRoot) {
// Walk the children of the root element and look for import/include
// elements. Imports must occur first.
xmlNodePtr curr = stylesheetRoot->children;
while (curr) {
if (curr->type != XML_ELEMENT_NODE) {
curr = curr->next;
continue;
}
if (IS_XSLT_ELEM(curr) && IS_XSLT_NAME(curr, "import")) {
xmlChar* uriRef = xsltGetNsProp(curr, (const xmlChar*)"href", XSLT_NAMESPACE);
loadChildSheet(String::fromUTF8((const char*)uriRef));
xmlFree(uriRef);
} else {
break;
}
curr = curr->next;
}
// Now handle includes.
while (curr) {
if (curr->type == XML_ELEMENT_NODE && IS_XSLT_ELEM(curr) && IS_XSLT_NAME(curr, "include")) {
xmlChar* uriRef = xsltGetNsProp(curr, (const xmlChar*)"href", XSLT_NAMESPACE);
loadChildSheet(String::fromUTF8((const char*)uriRef));
xmlFree(uriRef);
}
curr = curr->next;
}
}
}
static int
xmlSecTransformVisa3DHackExecute(xmlSecTransformPtr transform, int last,
xmlSecTransformCtxPtr transformCtx) {
xmlChar** idPtr;
xmlDocPtr doc;
xmlAttrPtr attr;
xmlNodeSetPtr nodeSet;
xmlSecAssert2(xmlSecTransformVisa3DHackCheckId(transform), -1);
xmlSecAssert2(transform->outNodes == NULL, -1);
xmlSecAssert2(last != 0, -1);
xmlSecAssert2(transformCtx != NULL, -1);
idPtr = xmlSecVisa3DHackTransformGetIDPtr(transform);
xmlSecAssert2(idPtr != NULL, -1);
xmlSecAssert2((*idPtr) != NULL, -1);
doc = (transform->inNodes != NULL) ? transform->inNodes->doc : transform->hereNode->doc;
xmlSecAssert2(doc != NULL, -1);
attr = xmlGetID(doc, (*idPtr));
if((attr == NULL) || (attr->parent == NULL)) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"xmlGetID",
XMLSEC_ERRORS_R_XML_FAILED,
"id=\"%s\"",
xmlSecErrorsSafeString((*idPtr)));
return(-1);
}
nodeSet = xmlXPathNodeSetCreate(attr->parent);
if(nodeSet == NULL) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"xmlXPathNodeSetCreate",
XMLSEC_ERRORS_R_XML_FAILED,
"id=\"%s\"",
xmlSecErrorsSafeString((*idPtr)));
return(-1);
}
transform->outNodes = xmlSecNodeSetCreate(doc, nodeSet, xmlSecNodeSetTreeWithoutComments);
if(transform->outNodes == NULL) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"xmlSecNodeSetCreate",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
xmlXPathFreeNodeSet(nodeSet);
return(-1);
}
return(0);
}
int assign_id_attributes(xmlDocPtr doc) {
// Assume the ID attribute is one of (ID | Id | id) and tell this to libxml
xmlXPathContextPtr xpathCtx = xmlXPathNewContext(doc);
if(xpathCtx == NULL) {
xmlFreeDoc(doc);
rb_raise(rb_eRuntimeError,"Error: unable to create new XPath context\n");
return(-1);
}
xmlChar* xpathExpr = "//*[@ID | @Id | @id]";
xmlXPathObjectPtr xpathObj = xmlXPathEvalExpression(xpathExpr, xpathCtx);
if(xpathObj == NULL) {
xmlXPathFreeContext(xpathCtx);
xmlFreeDoc(doc);
rb_raise(rb_eRuntimeError,"Error: unable to evaluate xpath expression \"%s\"\n", xpathExpr);
return(-1);
}
xmlNodeSetPtr nodes = xpathObj->nodesetval;
int size = (nodes) ? nodes->nodeNr : 0;
char* idNames[] = {"ID", "Id", "id"};
xmlAttrPtr attr, tmp;
int i,j;
for(i = 0; i < size; i++) {
for(j=0; j<3;j++) {
tmp = xmlHasProp(nodes->nodeTab[i], idNames[j]);
if(tmp != NULL)
attr = tmp;
}
if(attr == NULL) {
xmlXPathFreeContext(xpathCtx);
return(-1);
}
xmlChar* name = xmlNodeListGetString(doc, attr->children, 1);
if(name == NULL) {
xmlXPathFreeContext(xpathCtx);
return(-1);
}
xmlAttrPtr tmp = xmlGetID(doc, name);
if(tmp != NULL) {
xmlFree(name);
return 0;
}
xmlAddID(NULL, doc, name, attr);
xmlFree(name);
}
xmlXPathFreeObject(xpathObj);
xmlXPathFreeContext(xpathCtx);
}