📄 xinclude.c
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listParent = cur->parent;
} else {
if (level == lastLevel)
xmlAddNextSibling(last, tmp);
else {
xmlAddChild(last, tmp);
lastLevel = level;
}
}
last = tmp;
if (index2 > 1) {
end = xmlXIncludeGetNthChild(cur, index2 - 1);
index2 = 0;
}
if ((cur == start) && (index1 > 1)) {
cur = xmlXIncludeGetNthChild(cur, index1 - 1);
index1 = 0;
} else {
cur = cur->children;
}
level++; /* increment level to show change */
/*
* Now gather the remaining nodes from cur to end
*/
continue; /* while */
}
} else if (cur == start) { /* Not at the end, are we at start? */
if ((cur->type == XML_TEXT_NODE) ||
(cur->type == XML_CDATA_SECTION_NODE)) {
const xmlChar *content = cur->content;
if (content == NULL) {
tmp = xmlNewTextLen(NULL, 0);
} else {
if (index1 > 1) {
content += (index1 - 1);
index1 = 0;
}
tmp = xmlNewText(content);
}
last = list = tmp;
listParent = cur->parent;
} else { /* Not text node */
/*
* start of the range - need to take care of
* properties and namespaces
*/
tmp = xmlDocCopyNode(cur, target, 2);
list = last = tmp;
listParent = cur->parent;
if (index1 > 1) { /* Do we need to position? */
cur = xmlXIncludeGetNthChild(cur, index1 - 1);
level = lastLevel = 1;
index1 = 0;
/*
* Now gather the remaining nodes from cur to end
*/
continue; /* while */
}
}
} else {
tmp = NULL;
switch (cur->type) {
case XML_DTD_NODE:
case XML_ELEMENT_DECL:
case XML_ATTRIBUTE_DECL:
case XML_ENTITY_NODE:
/* Do not copy DTD informations */
break;
case XML_ENTITY_DECL:
/* handle crossing entities -> stack needed */
break;
case XML_XINCLUDE_START:
case XML_XINCLUDE_END:
/* don't consider it part of the tree content */
break;
case XML_ATTRIBUTE_NODE:
/* Humm, should not happen ! */
break;
default:
/*
* Middle of the range - need to take care of
* properties and namespaces
*/
tmp = xmlDocCopyNode(cur, target, 2);
break;
}
if (tmp != NULL) {
if (level == lastLevel)
xmlAddNextSibling(last, tmp);
else {
xmlAddChild(last, tmp);
lastLevel = level;
}
last = tmp;
}
}
/*
* Skip to next node in document order
*/
cur = xmlXPtrAdvanceNode(cur, &level);
if (endFlag && (level >= endLevel))
break;
}
return(list);
}
/**
* xmlXIncludeBuildNodeList:
* @ctxt: the XInclude context
* @target: the document target
* @source: the document source
* @obj: the XPointer result from the evaluation.
*
* Build a node list tree copy of the XPointer result.
* This will drop Attributes and Namespace declarations.
*
* Returns an xmlNodePtr list or NULL.
* the caller has to free the node tree.
*/
static xmlNodePtr
xmlXIncludeCopyXPointer(xmlXIncludeCtxtPtr ctxt, xmlDocPtr target,
xmlDocPtr source, xmlXPathObjectPtr obj) {
xmlNodePtr list = NULL, last = NULL;
int i;
if (source == NULL)
source = ctxt->doc;
if ((ctxt == NULL) || (target == NULL) || (source == NULL) ||
(obj == NULL))
return(NULL);
switch (obj->type) {
case XPATH_NODESET: {
xmlNodeSetPtr set = obj->nodesetval;
if (set == NULL)
return(NULL);
for (i = 0;i < set->nodeNr;i++) {
if (set->nodeTab[i] == NULL)
continue;
switch (set->nodeTab[i]->type) {
case XML_TEXT_NODE:
case XML_CDATA_SECTION_NODE:
case XML_ELEMENT_NODE:
case XML_ENTITY_REF_NODE:
case XML_ENTITY_NODE:
case XML_PI_NODE:
case XML_COMMENT_NODE:
case XML_DOCUMENT_NODE:
case XML_HTML_DOCUMENT_NODE:
#ifdef LIBXML_DOCB_ENABLED
case XML_DOCB_DOCUMENT_NODE:
#endif
case XML_XINCLUDE_END:
break;
case XML_XINCLUDE_START: {
xmlNodePtr tmp, cur = set->nodeTab[i];
cur = cur->next;
while (cur != NULL) {
switch(cur->type) {
case XML_TEXT_NODE:
case XML_CDATA_SECTION_NODE:
case XML_ELEMENT_NODE:
case XML_ENTITY_REF_NODE:
case XML_ENTITY_NODE:
case XML_PI_NODE:
case XML_COMMENT_NODE:
tmp = xmlXIncludeCopyNode(ctxt, target,
source, cur);
if (last == NULL) {
list = last = tmp;
} else {
xmlAddNextSibling(last, tmp);
last = tmp;
}
cur = cur->next;
continue;
default:
break;
}
break;
}
continue;
}
case XML_ATTRIBUTE_NODE:
case XML_NAMESPACE_DECL:
case XML_DOCUMENT_TYPE_NODE:
case XML_DOCUMENT_FRAG_NODE:
case XML_NOTATION_NODE:
case XML_DTD_NODE:
case XML_ELEMENT_DECL:
case XML_ATTRIBUTE_DECL:
case XML_ENTITY_DECL:
continue; /* for */
}
if (last == NULL)
list = last = xmlXIncludeCopyNode(ctxt, target, source,
set->nodeTab[i]);
else {
xmlAddNextSibling(last,
xmlXIncludeCopyNode(ctxt, target, source,
set->nodeTab[i]));
if (last->next != NULL)
last = last->next;
}
}
break;
}
case XPATH_LOCATIONSET: {
xmlLocationSetPtr set = (xmlLocationSetPtr) obj->user;
if (set == NULL)
return(NULL);
for (i = 0;i < set->locNr;i++) {
if (last == NULL)
list = last = xmlXIncludeCopyXPointer(ctxt, target, source,
set->locTab[i]);
else
xmlAddNextSibling(last,
xmlXIncludeCopyXPointer(ctxt, target, source,
set->locTab[i]));
if (last != NULL) {
while (last->next != NULL)
last = last->next;
}
}
break;
}
#ifdef LIBXML_XPTR_ENABLED
case XPATH_RANGE:
return(xmlXIncludeCopyRange(ctxt, target, source, obj));
#endif
case XPATH_POINT:
/* points are ignored in XInclude */
break;
default:
break;
}
return(list);
}
/************************************************************************
* *
* XInclude I/O handling *
* *
************************************************************************/
typedef struct _xmlXIncludeMergeData xmlXIncludeMergeData;
typedef xmlXIncludeMergeData *xmlXIncludeMergeDataPtr;
struct _xmlXIncludeMergeData {
xmlDocPtr doc;
xmlXIncludeCtxtPtr ctxt;
};
/**
* xmlXIncludeMergeOneEntity:
* @ent: the entity
* @doc: the including doc
* @nr: the entity name
*
* Inplements the merge of one entity
*/
static void
xmlXIncludeMergeEntity(xmlEntityPtr ent, xmlXIncludeMergeDataPtr data,
xmlChar *name ATTRIBUTE_UNUSED) {
xmlEntityPtr ret, prev;
xmlDocPtr doc;
xmlXIncludeCtxtPtr ctxt;
if ((ent == NULL) || (data == NULL))
return;
ctxt = data->ctxt;
doc = data->doc;
if ((ctxt == NULL) || (doc == NULL))
return;
switch (ent->etype) {
case XML_INTERNAL_PARAMETER_ENTITY:
case XML_EXTERNAL_PARAMETER_ENTITY:
case XML_INTERNAL_PREDEFINED_ENTITY:
return;
case XML_INTERNAL_GENERAL_ENTITY:
case XML_EXTERNAL_GENERAL_PARSED_ENTITY:
case XML_EXTERNAL_GENERAL_UNPARSED_ENTITY:
break;
}
ret = xmlAddDocEntity(doc, ent->name, ent->etype, ent->ExternalID,
ent->SystemID, ent->content);
if (ret != NULL) {
if (ent->URI != NULL)
ret->URI = xmlStrdup(ent->URI);
} else {
prev = xmlGetDocEntity(doc, ent->name);
if (prev != NULL) {
if (ent->etype != prev->etype)
goto error;
if ((ent->SystemID != NULL) && (prev->SystemID != NULL)) {
if (!xmlStrEqual(ent->SystemID, prev->SystemID))
goto error;
} else if ((ent->ExternalID != NULL) &&
(prev->ExternalID != NULL)) {
if (!xmlStrEqual(ent->ExternalID, prev->ExternalID))
goto error;
} else if ((ent->content != NULL) && (prev->content != NULL)) {
if (!xmlStrEqual(ent->content, prev->content))
goto error;
} else {
goto error;
}
}
}
return;
error:
switch (ent->etype) {
case XML_INTERNAL_PARAMETER_ENTITY:
case XML_EXTERNAL_PARAMETER_ENTITY:
case XML_INTERNAL_PREDEFINED_ENTITY:
case XML_INTERNAL_GENERAL_ENTITY:
case XML_EXTERNAL_GENERAL_PARSED_ENTITY:
return;
case XML_EXTERNAL_GENERAL_UNPARSED_ENTITY:
break;
}
xmlXIncludeErr(ctxt, (xmlNodePtr) ent, XML_XINCLUDE_ENTITY_DEF_MISMATCH,
"mismatch in redefinition of entity %s\n",
ent->name);
}
/**
* xmlXIncludeMergeEntities:
* @ctxt: an XInclude context
* @doc: the including doc
* @from: the included doc
*
* Inplements the entity merge
*
* Returns 0 if merge succeeded, -1 if some processing failed
*/
static int
xmlXIncludeMergeEntities(xmlXIncludeCtxtPtr ctxt, xmlDocPtr doc,
xmlDocPtr from) {
xmlNodePtr cur;
xmlDtdPtr target, source;
if (ctxt == NULL)
return(-1);
if ((from == NULL) || (from->intSubset == NULL))
return(0);
target = doc->intSubset;
if (target == NULL) {
cur = xmlDocGetRootElement(doc);
if (cur == NULL)
return(-1);
target = xmlCreateIntSubset(doc, cur->name, NULL, NULL);
if (target == NULL)
return(-1);
}
source = from->intSubset;
if ((source != NULL) && (source->entities != NULL)) {
xmlXIncludeMergeData data;
data.ctxt = ctxt;
data.doc = doc;
xmlHashScan((xmlHashTablePtr) source->entities,
(xmlHashScanner) xmlXIncludeMergeEntity, &data);
}
source = from->extSubset;
if ((source != NULL) && (source->entities != NULL)) {
xmlXIncludeMergeData data;
data.ctxt = ctxt;
data.doc = doc;
/*
* don't duplicate existing stuff when external subsets are the same
*/
if ((!xmlStrEqual(target->ExternalID, source->ExternalID)) &&
(!xmlStrEqual(target->SystemID, source->SystemID))) {
xmlHashScan((xmlHashTablePtr) source->entities,
(xmlHashScanner) xmlXIncludeMergeEntity, &data);
}
}
return(0);
}
/**
* xmlXIncludeLoadDoc:
* @ctxt: the XInclude context
* @url: the associated URL
* @nr: the xinclude node number
*
* Load the document, and store the result in the XInclude context
*
* Returns 0 in case of success, -1 in case of failure
*/
static int
xmlXIncludeLoadDoc(xmlXIncludeCtxtPtr ctxt, const xmlChar *url, int nr) {
xmlDocPtr doc;
xmlURIPtr uri;
xmlChar *URL;
xmlChar *fragment = NULL;
int i = 0;
#ifdef LIBXML_XPTR_ENABLED
int saveFlags;
#endif
#ifdef DEBUG_XINCLUDE
xmlGenericError(xmlGenericErrorContext, "Loading doc %s:%d\n", url, nr);
#endif
/*
* Check the URL and remove any fragment identifier
*/
uri = xmlParseURI((const char *)url);
if (uri == NULL) {
xmlXIncludeErr(ctxt, ctxt->incTab[nr]->ref,
XML_XINCLUDE_HREF_URI,
"invalid value URI %s\n", url);
return(-1);
}
if (uri->fragment != NULL) {
fragment = (xmlChar *) uri->fragment;
uri->fragment = NULL;
}
if ((ctxt->incTab != NULL) && (ctxt->incTab[nr] != NULL) &&
(ctxt->incTab[nr]->fragment != NULL)) {
if (fragment != NULL) xmlFree(fragment);
fragment = xmlStrdup(ctxt->incTab[nr]->fragment);
}
URL = xmlSaveUri(uri);
xmlFreeURI(uri);
if (URL == NULL) {
xmlXIncludeErr(ctxt, ctxt->incTab[nr]->ref,
XML_XINCLUDE_HREF_URI,
"invalid value URI %s\n", url);
if (fragment != NULL)
xmlFree(fragment);
return(-1);
}
/*
* Handling of references to the local document are done
* directly through ctxt->doc.
*/
if ((URL[0] == 0) || (URL[0] == '#') ||
((ctxt->doc != NULL) && (xmlStrEqual(URL, ctxt->doc->URL)))) {
doc = NULL;
goto loaded;
}
/*
* Prevent reloading twice the document.
*/
for (i = 0; i < ctxt->incNr; i++) {
if ((xmlStrEqual(URL, ctxt->incTab[i]->URI)) &&
(ctxt->incTab[i]->doc != NULL)) {
doc = ctxt->incTab[i]->doc;
#ifdef DEBUG_XINCLUDE
printf("Already loaded %s\n", URL);
#endif
goto loaded;
}
}
/*
* Load it.
*/
#ifdef DEBUG_XINCLUDE
printf("loading %s\n", URL);
#endif
#ifdef LIBXML_XPTR_ENABLED
/*
* If this is an XPointer evaluation, we want to assure that
* all entities have been resolved prior to processing the
* referenced document
*/
saveFlags = ctxt->parseFlags;
if (fragment != NULL) { /* if this is an XPointer eval */
ctxt->parseFlags |= XML_PARSE_NOENT;
}
#endif
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