static int
xmlSecXPathDataRegisterNamespaces(xmlSecXPathDataPtr data, xmlNodePtr node) {
xmlNodePtr cur;
xmlNsPtr ns;
int ret;
xmlSecAssert2(data != NULL, -1);
xmlSecAssert2(data->ctx != NULL, -1);
xmlSecAssert2(node != NULL, -1);
/* register namespaces */
for(cur = node; cur != NULL; cur = cur->parent) {
for(ns = cur->nsDef; ns != NULL; ns = ns->next) {
/* check that we have no other namespace with same prefix already */
if((ns->prefix != NULL) && (xmlXPathNsLookup(data->ctx, ns->prefix) == NULL)){
ret = xmlXPathRegisterNs(data->ctx, ns->prefix, ns->href);
if(ret != 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"xmlXPathRegisterNs",
XMLSEC_ERRORS_R_XML_FAILED,
"href=%s;prefix=%s",
xmlSecErrorsSafeString(ns->href),
xmlSecErrorsSafeString(ns->prefix));
return(-1);
}
}
}
}
return(0);
}
bool XPathContext::is_namespace_registered(const std::string& prefix)
{
if (NULL != xmlXPathNsLookup(m_cobj, reinterpret_cast<const xmlChar*>(prefix.c_str())))
{
return true;
}
return false;
}
/**
* 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);
}
/**
* xslDbgShellPrintList:
* @ctxt: The current shell context
* @arg: What xpath to display and in UTF-8
* @dir: If 1 print in dir mode?,
* otherwise ls mode
*
* Print list of nodes in either ls or dir format
*
* Returns 1 on success,
* 0 otherwise
*/
int
xslDbgShellPrintList(xmlShellCtxtPtr ctxt, xmlChar * arg, int dir)
{
xmlXPathObjectPtr list;
int result = 0;
if (!ctxt || !arg) {
#ifdef WITH_XSLDBG_DEBUG_PROCESS
xsltGenericError(xsltGenericErrorContext,
"Error: NULL arguments provided\n");
#endif
return result;
}
if (arg[0] == 0) {
if (dir)
xmlShellDir(ctxt, NULL, ctxt->node, NULL);
else
xmlShellList(ctxt, NULL, ctxt->node, NULL);
result = 1; /*assume that this worked */
} else {
ctxt->pctxt->node = ctxt->node;
ctxt->pctxt->node = ctxt->node;
if (!xmlXPathNsLookup(ctxt->pctxt, (xmlChar *) "xsl"))
xmlXPathRegisterNs(ctxt->pctxt, (xmlChar *) "xsl",
XSLT_NAMESPACE);
list = xmlXPathEval(arg, ctxt->pctxt);
if (list != NULL) {
switch (list->type) {
case XPATH_NODESET:{
int indx;
for (indx = 0;
indx < list->nodesetval->nodeNr; indx++) {
if (dir)
xmlShellList(ctxt, NULL,
list->nodesetval->
nodeTab[indx], NULL);
else
xmlShellList(ctxt, NULL,
list->nodesetval->
nodeTab[indx], NULL);
}
result = 1;
break;
}
default:
xmlShellPrintXPathError(list->type, (char *) arg);
}
xmlXPathFreeObject(list);
} else {
xsldbgGenericErrorFunc(i18n("Error: XPath %1 results in an empty Node Set.\n").arg(xsldbgText(arg)));
}
ctxt->pctxt->node = NULL;
}
return result;
}
std::string XPathContext::lookup_namespace(const std::string& prefix)
{
const xmlChar* ns = xmlXPathNsLookup(m_cobj, reinterpret_cast<const xmlChar*>(prefix.c_str()));
if (ns == NULL)
{
throw NoSuchNamespacePrefix(prefix);
}
return std::string(reinterpret_cast<const char*>(ns));
}
int
xslDbgShellCat(xsltTransformContextPtr styleCtxt, xmlShellCtxtPtr ctxt,
xmlChar * arg)
{
xmlXPathObjectPtr list;
int result = 0;
static const char * QUIET_STR = "-q";
bool silenceCtxtErrors = false;
if ((arg == NULL) || (xmlStrLen(arg) == 0))
arg = (xmlChar *) ".";
/* Do we quietly ingore style context errors */
if (strncasecmp((char*)arg, QUIET_STR, strlen(QUIET_STR))== 0){
silenceCtxtErrors = true;
arg = arg + strlen(QUIET_STR);
while (isspace(*arg)){
arg++;
}
}
if (!styleCtxt || !ctxt || !ctxt->node) {
if (!(!xsldbgReachedFirstTemplate && silenceCtxtErrors))
xsldbgGenericErrorFunc(i18n("Warning: Unable to print expression. No stylesheet was properly loaded.\n"));
return 0;
}
if ((arg == NULL) || (xmlStrLen(arg) == 0))
arg = (xmlChar *) ".";
ctxt->pctxt->node = ctxt->node;
if (!styleCtxt) {
list = xmlXPathEval((xmlChar *) arg, ctxt->pctxt);
} else {
xmlNodePtr savenode = styleCtxt->xpathCtxt->node;
ctxt->pctxt->node = ctxt->node;
styleCtxt->xpathCtxt->node = ctxt->node;
if (!xmlXPathNsLookup(styleCtxt->xpathCtxt, (xmlChar *) "xsl"))
xmlXPathRegisterNs(styleCtxt->xpathCtxt, (xmlChar *) "xsl",
XSLT_NAMESPACE);
list = xmlXPathEval((xmlChar *) arg, styleCtxt->xpathCtxt);
styleCtxt->xpathCtxt->node = savenode;
}
if (list != NULL) {
result = printXPathObject(list, arg);
xmlXPathFreeObject(list);
} else {
xsldbgGenericErrorFunc(i18n("Error: XPath %1 results in an empty Node Set.\n").arg(xsldbgText(arg)));
}
ctxt->pctxt->node = NULL;
return result;
}
/**
* 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);
}
/**
* xsltSystemPropertyFunction:
* @ctxt: the XPath Parser context
* @nargs: the number of arguments
*
* Implement the system-property() XSLT function
* object system-property(string)
*/
void
xsltSystemPropertyFunction(xmlXPathParserContextPtr ctxt, int nargs){
xmlXPathObjectPtr obj;
xmlChar *prefix, *name;
const xmlChar *nsURI = NULL;
if (nargs != 1) {
xsltTransformError(xsltXPathGetTransformContext(ctxt), NULL, NULL,
"system-property() : expects one string arg\n");
ctxt->error = XPATH_INVALID_ARITY;
return;
}
if ((ctxt->value == NULL) || (ctxt->value->type != XPATH_STRING)) {
xsltTransformError(xsltXPathGetTransformContext(ctxt), NULL, NULL,
"system-property() : invalid arg expecting a string\n");
ctxt->error = XPATH_INVALID_TYPE;
return;
}
obj = valuePop(ctxt);
if (obj->stringval == NULL) {
valuePush(ctxt, xmlXPathNewString((const xmlChar *)""));
} else {
name = xmlSplitQName2(obj->stringval, &prefix);
if (name == NULL) {
name = xmlStrdup(obj->stringval);
} else {
nsURI = xmlXPathNsLookup(ctxt->context, prefix);
if (nsURI == NULL) {
xsltTransformError(xsltXPathGetTransformContext(ctxt), NULL, NULL,
"system-property() : prefix %s is not bound\n", prefix);
}
}
if (xmlStrEqual(nsURI, XSLT_NAMESPACE)) {
#ifdef DOCBOOK_XSL_HACK
if (xmlStrEqual(name, (const xmlChar *)"vendor")) {
xsltStylesheetPtr sheet;
xsltTransformContextPtr tctxt;
tctxt = xsltXPathGetTransformContext(ctxt);
if ((tctxt != NULL) && (tctxt->inst != NULL) &&
(xmlStrEqual(tctxt->inst->name, BAD_CAST "variable")) &&
(tctxt->inst->parent != NULL) &&
(xmlStrEqual(tctxt->inst->parent->name,
BAD_CAST "template")))
sheet = tctxt->style;
else
sheet = NULL;
if ((sheet != NULL) && (sheet->doc != NULL) &&
(sheet->doc->URL != NULL) &&
(xmlStrstr(sheet->doc->URL,
(const xmlChar *)"chunk") != NULL)) {
valuePush(ctxt, xmlXPathNewString(
(const xmlChar *)"libxslt (SAXON 6.2 compatible)"));
} else {
valuePush(ctxt, xmlXPathNewString(
(const xmlChar *)XSLT_DEFAULT_VENDOR));
}
} else
#else
if (xmlStrEqual(name, (const xmlChar *)"vendor")) {
valuePush(ctxt, xmlXPathNewString(
(const xmlChar *)XSLT_DEFAULT_VENDOR));
} else
#endif
if (xmlStrEqual(name, (const xmlChar *)"version")) {
valuePush(ctxt, xmlXPathNewString(
(const xmlChar *)XSLT_DEFAULT_VERSION));
} else if (xmlStrEqual(name, (const xmlChar *)"vendor-url")) {
valuePush(ctxt, xmlXPathNewString(
(const xmlChar *)XSLT_DEFAULT_URL));
} else {
valuePush(ctxt, xmlXPathNewString((const xmlChar *)""));
}
} else {
valuePush(ctxt, xmlXPathNewString((const xmlChar *)""));
}
if (name != NULL)
xmlFree(name);
if (prefix != NULL)
xmlFree(prefix);
}
xmlXPathFreeObject(obj);
}
/**
* xsltKeyFunction:
* @ctxt: the XPath Parser context
* @nargs: the number of arguments
*
* Implement the key() XSLT function
* node-set key(string, object)
*/
void
xsltKeyFunction(xmlXPathParserContextPtr ctxt, int nargs){
xmlXPathObjectPtr obj1, obj2;
if (nargs != 2) {
xsltTransformError(xsltXPathGetTransformContext(ctxt), NULL, NULL,
"key() : expects two arguments\n");
ctxt->error = XPATH_INVALID_ARITY;
return;
}
/*
* Get the key's value.
*/
obj2 = valuePop(ctxt);
xmlXPathStringFunction(ctxt, 1);
if ((obj2 == NULL) ||
(ctxt->value == NULL) || (ctxt->value->type != XPATH_STRING)) {
xsltTransformError(xsltXPathGetTransformContext(ctxt), NULL, NULL,
"key() : invalid arg expecting a string\n");
ctxt->error = XPATH_INVALID_TYPE;
xmlXPathFreeObject(obj2);
return;
}
/*
* Get the key's name.
*/
obj1 = valuePop(ctxt);
if ((obj2->type == XPATH_NODESET) || (obj2->type == XPATH_XSLT_TREE)) {
int i;
xmlXPathObjectPtr newobj, ret;
ret = xmlXPathNewNodeSet(NULL);
if (obj2->nodesetval != NULL) {
for (i = 0; i < obj2->nodesetval->nodeNr; i++) {
valuePush(ctxt, xmlXPathObjectCopy(obj1));
valuePush(ctxt,
xmlXPathNewNodeSet(obj2->nodesetval->nodeTab[i]));
xmlXPathStringFunction(ctxt, 1);
xsltKeyFunction(ctxt, 2);
newobj = valuePop(ctxt);
ret->nodesetval = xmlXPathNodeSetMerge(ret->nodesetval,
newobj->nodesetval);
xmlXPathFreeObject(newobj);
}
}
valuePush(ctxt, ret);
} else {
xmlNodeSetPtr nodelist = NULL;
xmlChar *key = NULL, *value;
const xmlChar *keyURI;
xsltTransformContextPtr tctxt;
xmlChar *qname, *prefix;
xmlXPathContextPtr xpctxt = ctxt->context;
xmlNodePtr tmpNode = NULL;
xsltDocumentPtr oldDocInfo;
tctxt = xsltXPathGetTransformContext(ctxt);
oldDocInfo = tctxt->document;
if (xpctxt->node == NULL) {
xsltTransformError(tctxt, NULL, tctxt->inst,
"Internal error in xsltKeyFunction(): "
"The context node is not set on the XPath context.\n");
tctxt->state = XSLT_STATE_STOPPED;
goto error;
}
/*
* Get the associated namespace URI if qualified name
*/
qname = obj1->stringval;
key = xmlSplitQName2(qname, &prefix);
if (key == NULL) {
key = xmlStrdup(obj1->stringval);
keyURI = NULL;
if (prefix != NULL)
xmlFree(prefix);
} else {
if (prefix != NULL) {
keyURI = xmlXPathNsLookup(xpctxt, prefix);
if (keyURI == NULL) {
xsltTransformError(tctxt, NULL, tctxt->inst,
"key() : prefix %s is not bound\n", prefix);
/*
* TODO: Shouldn't we stop here?
*/
}
xmlFree(prefix);
} else {
keyURI = NULL;
}
}
/*
* Force conversion of first arg to string
*/
valuePush(ctxt, obj2);
xmlXPathStringFunction(ctxt, 1);
if ((ctxt->value == NULL) || (ctxt->value->type != XPATH_STRING)) {
xsltTransformError(tctxt, NULL, tctxt->inst,
"key() : invalid arg expecting a string\n");
ctxt->error = XPATH_INVALID_TYPE;
goto error;
}
obj2 = valuePop(ctxt);
value = obj2->stringval;
/*
* We need to ensure that ctxt->document is available for
* xsltGetKey().
* First find the relevant doc, which is the context node's
* owner doc; using context->doc is not safe, since
* the doc could have been acquired via the document() function,
* or the doc might be a Result Tree Fragment.
* FUTURE INFO: In XSLT 2.0 the key() function takes an additional
* argument indicating the doc to use.
*/
if (xpctxt->node->type == XML_NAMESPACE_DECL) {
/*
* REVISIT: This is a libxml hack! Check xpath.c for details.
* The XPath module sets the owner element of a ns-node on
* the ns->next field.
*/
if ((((xmlNsPtr) xpctxt->node)->next != NULL) &&
(((xmlNsPtr) xpctxt->node)->next->type == XML_ELEMENT_NODE))
{
tmpNode = (xmlNodePtr) ((xmlNsPtr) xpctxt->node)->next;
}
} else
tmpNode = xpctxt->node;
if ((tmpNode == NULL) || (tmpNode->doc == NULL)) {
xsltTransformError(tctxt, NULL, tctxt->inst,
"Internal error in xsltKeyFunction(): "
"Couldn't get the doc of the XPath context node.\n");
goto error;
}
if ((tctxt->document == NULL) ||
(tctxt->document->doc != tmpNode->doc))
{
if (tmpNode->doc->name && (tmpNode->doc->name[0] == ' ')) {
/*
* This is a Result Tree Fragment.
*/
if (tmpNode->doc->_private == NULL) {
tmpNode->doc->_private = xsltNewDocument(tctxt, tmpNode->doc);
if (tmpNode->doc->_private == NULL)
goto error;
}
tctxt->document = (xsltDocumentPtr) tmpNode->doc->_private;
} else {
/*
* May be the initial source doc or a doc acquired via the
* document() function.
*/
tctxt->document = xsltFindDocument(tctxt, tmpNode->doc);
}
if (tctxt->document == NULL) {
xsltTransformError(tctxt, NULL, tctxt->inst,
"Internal error in xsltKeyFunction(): "
"Could not get the document info of a context doc.\n");
tctxt->state = XSLT_STATE_STOPPED;
goto error;
}
}
/*
* Get/compute the key value.
*/
nodelist = xsltGetKey(tctxt, key, keyURI, value);
error:
tctxt->document = oldDocInfo;
valuePush(ctxt, xmlXPathWrapNodeSet(
xmlXPathNodeSetMerge(NULL, nodelist)));
if (key != NULL)
xmlFree(key);
}
if (obj1 != NULL)
xmlXPathFreeObject(obj1);
if (obj2 != NULL)
xmlXPathFreeObject(obj2);
}
/**
* xsltKeyFunction:
* @ctxt: the XPath Parser context
* @nargs: the number of arguments
*
* Implement the key() XSLT function
* node-set key(string, object)
*/
void
xsltKeyFunction(xmlXPathParserContextPtr ctxt, int nargs){
xmlNodeSetPtr nodelist;
xmlXPathObjectPtr obj1, obj2;
xmlChar *key = NULL, *value;
const xmlChar *keyURI;
xsltTransformContextPtr tctxt;
if (nargs != 2) {
xsltPrintErrorContext(xsltXPathGetTransformContext(ctxt), NULL, NULL);
xsltGenericError(xsltGenericErrorContext,
"key() : expects two arguments\n");
ctxt->error = XPATH_INVALID_ARITY;
return;
}
obj2 = valuePop(ctxt);
if ((obj2 == NULL) ||
(ctxt->value == NULL) || (ctxt->value->type != XPATH_STRING)) {
xsltPrintErrorContext(xsltXPathGetTransformContext(ctxt), NULL, NULL);
xsltGenericError(xsltGenericErrorContext,
"key() : invalid arg expecting a string\n");
ctxt->error = XPATH_INVALID_TYPE;
xmlXPathFreeObject(obj2);
return;
}
obj1 = valuePop(ctxt);
if (obj2->type == XPATH_NODESET) {
int i;
xmlXPathObjectPtr newobj, ret;
ret = xmlXPathNewNodeSet(NULL);
if (obj2->nodesetval != NULL) {
for (i = 0; i < obj2->nodesetval->nodeNr; i++) {
valuePush(ctxt, xmlXPathObjectCopy(obj1));
valuePush(ctxt,
xmlXPathNewNodeSet(obj2->nodesetval->nodeTab[i]));
xmlXPathStringFunction(ctxt, 1);
xsltKeyFunction(ctxt, 2);
newobj = valuePop(ctxt);
ret->nodesetval = xmlXPathNodeSetMerge(ret->nodesetval,
newobj->nodesetval);
xmlXPathFreeObject(newobj);
}
}
valuePush(ctxt, ret);
} else {
xmlChar *qname, *prefix;
/*
* Get the associated namespace URI if qualified name
*/
qname = obj1->stringval;
key = xmlSplitQName2(qname, &prefix);
if (key == NULL) {
key = xmlStrdup(obj1->stringval);
keyURI = NULL;
if (prefix != NULL)
xmlFree(prefix);
} else {
if (prefix != NULL) {
keyURI = xmlXPathNsLookup(ctxt->context, prefix);
if (keyURI == NULL) {
xsltPrintErrorContext(xsltXPathGetTransformContext(ctxt),
NULL, NULL);
xsltGenericError(xsltGenericErrorContext,
"key() : prefix %s is not bound\n", prefix);
}
xmlFree(prefix);
} else {
keyURI = NULL;
}
}
/*
* Force conversion of first arg to string
*/
valuePush(ctxt, obj2);
xmlXPathStringFunction(ctxt, 1);
if ((ctxt->value == NULL) || (ctxt->value->type != XPATH_STRING)) {
xsltPrintErrorContext(xsltXPathGetTransformContext(ctxt),
NULL, NULL);
xsltGenericError(xsltGenericErrorContext,
"key() : invalid arg expecting a string\n");
ctxt->error = XPATH_INVALID_TYPE;
xmlXPathFreeObject(obj1);
return;
}
obj2 = valuePop(ctxt);
value = obj2->stringval;
tctxt = xsltXPathGetTransformContext(ctxt);
nodelist = xsltGetKey(tctxt, key, keyURI, value);
valuePush(ctxt, xmlXPathWrapNodeSet(
xmlXPathNodeSetMerge(NULL, nodelist)));
}
if (obj1 != NULL)
xmlXPathFreeObject(obj1);
if (obj2 != NULL)
xmlXPathFreeObject(obj2);
if (key != NULL)
xmlFree(key);
}
