mirror of
https://gitlab.gnome.org/GNOME/libxml2.git
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3c7c831c7c
Regressed in commit 78eab7a1
.
2206 lines
59 KiB
C
2206 lines
59 KiB
C
/*
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* xinclude.c : Code to implement XInclude processing
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*
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* World Wide Web Consortium W3C Last Call Working Draft 10 November 2003
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* http://www.w3.org/TR/2003/WD-xinclude-20031110
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*
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* See Copyright for the status of this software.
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*
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* daniel@veillard.com
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*/
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#define IN_LIBXML
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#include "libxml.h"
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#include <string.h>
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#include <libxml/xmlmemory.h>
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#include <libxml/tree.h>
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#include <libxml/parser.h>
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#include <libxml/uri.h>
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#include <libxml/xpath.h>
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#include <libxml/xpointer.h>
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#include <libxml/parserInternals.h>
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#include <libxml/xmlerror.h>
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#include <libxml/encoding.h>
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#ifdef LIBXML_XINCLUDE_ENABLED
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#include <libxml/xinclude.h>
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#include "private/buf.h"
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#include "private/error.h"
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#include "private/parser.h"
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#include "private/tree.h"
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#include "private/xinclude.h"
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#define XINCLUDE_MAX_DEPTH 40
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/************************************************************************
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* *
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* XInclude context handling *
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* *
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************************************************************************/
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/*
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* An XInclude context
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*/
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typedef xmlChar *xmlURL;
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typedef struct _xmlXIncludeRef xmlXIncludeRef;
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typedef xmlXIncludeRef *xmlXIncludeRefPtr;
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struct _xmlXIncludeRef {
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xmlChar *URI; /* the fully resolved resource URL */
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xmlChar *fragment; /* the fragment in the URI */
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xmlChar *base; /* base URI of xi:include element */
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xmlNodePtr elem; /* the xi:include element */
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xmlNodePtr inc; /* the included copy */
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int xml; /* xml or txt */
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int fallback; /* fallback was loaded */
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int expanding; /* flag to detect inclusion loops */
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int replace; /* should the node be replaced? */
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};
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typedef struct _xmlXIncludeDoc xmlXIncludeDoc;
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typedef xmlXIncludeDoc *xmlXIncludeDocPtr;
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struct _xmlXIncludeDoc {
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xmlDocPtr doc; /* the parsed document */
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xmlChar *url; /* the URL */
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int expanding; /* flag to detect inclusion loops */
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};
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typedef struct _xmlXIncludeTxt xmlXIncludeTxt;
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typedef xmlXIncludeTxt *xmlXIncludeTxtPtr;
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struct _xmlXIncludeTxt {
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xmlChar *text; /* text string */
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xmlChar *url; /* the URL */
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};
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struct _xmlXIncludeCtxt {
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xmlDocPtr doc; /* the source document */
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int incNr; /* number of includes */
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int incMax; /* size of includes tab */
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xmlXIncludeRefPtr *incTab; /* array of included references */
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int txtNr; /* number of unparsed documents */
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int txtMax; /* size of unparsed documents tab */
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xmlXIncludeTxt *txtTab; /* array of unparsed documents */
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int urlNr; /* number of documents stacked */
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int urlMax; /* size of document stack */
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xmlXIncludeDoc *urlTab; /* document stack */
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int nbErrors; /* the number of errors detected */
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int fatalErr; /* abort processing */
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int errNo; /* error code */
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int legacy; /* using XINCLUDE_OLD_NS */
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int parseFlags; /* the flags used for parsing XML documents */
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void *_private; /* application data */
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#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
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unsigned long incTotal; /* total number of processed inclusions */
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#endif
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int depth; /* recursion depth */
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int isStream; /* streaming mode */
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xmlXPathContextPtr xpctxt;
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xmlStructuredErrorFunc errorHandler;
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void *errorCtxt;
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xmlResourceLoader resourceLoader;
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void *resourceCtxt;
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};
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static xmlXIncludeRefPtr
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xmlXIncludeExpandNode(xmlXIncludeCtxtPtr ctxt, xmlNodePtr node);
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static int
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xmlXIncludeLoadNode(xmlXIncludeCtxtPtr ctxt, xmlXIncludeRefPtr ref);
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static int
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xmlXIncludeDoProcess(xmlXIncludeCtxtPtr ctxt, xmlNodePtr tree);
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/************************************************************************
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* *
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* XInclude error handler *
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* *
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************************************************************************/
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/**
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* xmlXIncludeErrMemory:
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* @extra: extra information
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*
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* Handle an out of memory condition
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*/
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static void
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xmlXIncludeErrMemory(xmlXIncludeCtxtPtr ctxt)
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{
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ctxt->errNo = XML_ERR_NO_MEMORY;
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ctxt->fatalErr = 1;
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ctxt->nbErrors++;
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xmlRaiseMemoryError(ctxt->errorHandler, NULL, ctxt->errorCtxt,
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XML_FROM_XINCLUDE, NULL);
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}
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/**
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* xmlXIncludeErr:
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* @ctxt: the XInclude context
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* @node: the context node
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* @msg: the error message
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* @extra: extra information
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*
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* Handle an XInclude error
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*/
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static void LIBXML_ATTR_FORMAT(4,0)
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xmlXIncludeErr(xmlXIncludeCtxtPtr ctxt, xmlNodePtr node, int error,
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const char *msg, const xmlChar *extra)
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{
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xmlStructuredErrorFunc schannel = NULL;
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xmlGenericErrorFunc channel = NULL;
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void *data = NULL;
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int res;
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if (ctxt->fatalErr != 0)
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return;
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ctxt->nbErrors++;
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schannel = ctxt->errorHandler;
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data = ctxt->errorCtxt;
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if (schannel == NULL) {
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channel = xmlGenericError;
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data = xmlGenericErrorContext;
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}
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res = __xmlRaiseError(schannel, channel, data, ctxt, node,
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XML_FROM_XINCLUDE, error, XML_ERR_ERROR,
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NULL, 0, (const char *) extra, NULL, NULL, 0, 0,
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msg, (const char *) extra);
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if (res < 0) {
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ctxt->errNo = XML_ERR_NO_MEMORY;
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ctxt->fatalErr = 1;
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} else {
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ctxt->errNo = error;
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}
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}
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/**
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* xmlXIncludeGetProp:
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* @ctxt: the XInclude context
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* @cur: the node
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* @name: the attribute name
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*
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* Get an XInclude attribute
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*
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* Returns the value (to be freed) or NULL if not found
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*/
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static xmlChar *
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xmlXIncludeGetProp(xmlXIncludeCtxtPtr ctxt, xmlNodePtr cur,
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const xmlChar *name) {
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xmlChar *ret;
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if (xmlNodeGetAttrValue(cur, name, XINCLUDE_NS, &ret) < 0)
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xmlXIncludeErrMemory(ctxt);
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if (ret != NULL)
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return(ret);
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if (ctxt->legacy != 0) {
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if (xmlNodeGetAttrValue(cur, name, XINCLUDE_OLD_NS, &ret) < 0)
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xmlXIncludeErrMemory(ctxt);
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if (ret != NULL)
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return(ret);
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}
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if (xmlNodeGetAttrValue(cur, name, NULL, &ret) < 0)
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xmlXIncludeErrMemory(ctxt);
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return(ret);
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}
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/**
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* xmlXIncludeFreeRef:
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* @ref: the XInclude reference
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*
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* Free an XInclude reference
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*/
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static void
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xmlXIncludeFreeRef(xmlXIncludeRefPtr ref) {
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if (ref == NULL)
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return;
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if (ref->URI != NULL)
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xmlFree(ref->URI);
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if (ref->fragment != NULL)
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xmlFree(ref->fragment);
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if (ref->base != NULL)
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xmlFree(ref->base);
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xmlFree(ref);
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}
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/**
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* xmlXIncludeNewContext:
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* @doc: an XML Document
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*
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* Creates a new XInclude context
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*
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* Returns the new set
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*/
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xmlXIncludeCtxtPtr
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xmlXIncludeNewContext(xmlDocPtr doc) {
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xmlXIncludeCtxtPtr ret;
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if (doc == NULL)
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return(NULL);
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ret = (xmlXIncludeCtxtPtr) xmlMalloc(sizeof(xmlXIncludeCtxt));
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if (ret == NULL)
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return(NULL);
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memset(ret, 0, sizeof(xmlXIncludeCtxt));
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ret->doc = doc;
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ret->incNr = 0;
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ret->incMax = 0;
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ret->incTab = NULL;
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ret->nbErrors = 0;
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return(ret);
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}
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/**
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* xmlXIncludeFreeContext:
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* @ctxt: the XInclude context
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*
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* Free an XInclude context
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*/
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void
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xmlXIncludeFreeContext(xmlXIncludeCtxtPtr ctxt) {
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int i;
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if (ctxt == NULL)
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return;
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if (ctxt->urlTab != NULL) {
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for (i = 0; i < ctxt->urlNr; i++) {
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xmlFreeDoc(ctxt->urlTab[i].doc);
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xmlFree(ctxt->urlTab[i].url);
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}
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xmlFree(ctxt->urlTab);
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}
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for (i = 0;i < ctxt->incNr;i++) {
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if (ctxt->incTab[i] != NULL)
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xmlXIncludeFreeRef(ctxt->incTab[i]);
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}
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if (ctxt->incTab != NULL)
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xmlFree(ctxt->incTab);
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if (ctxt->txtTab != NULL) {
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for (i = 0;i < ctxt->txtNr;i++) {
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xmlFree(ctxt->txtTab[i].text);
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xmlFree(ctxt->txtTab[i].url);
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}
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xmlFree(ctxt->txtTab);
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}
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if (ctxt->xpctxt != NULL)
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xmlXPathFreeContext(ctxt->xpctxt);
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xmlFree(ctxt);
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}
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/**
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* xmlXIncludeParseFile:
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* @ctxt: the XInclude context
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* @URL: the URL or file path
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*
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* parse a document for XInclude
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*/
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static xmlDocPtr
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xmlXIncludeParseFile(xmlXIncludeCtxtPtr ctxt, const char *URL) {
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xmlDocPtr ret = NULL;
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xmlParserCtxtPtr pctxt;
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xmlParserInputPtr inputStream;
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xmlInitParser();
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pctxt = xmlNewParserCtxt();
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if (pctxt == NULL) {
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xmlXIncludeErrMemory(ctxt);
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return(NULL);
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}
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if (ctxt->errorHandler != NULL)
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xmlCtxtSetErrorHandler(pctxt, ctxt->errorHandler, ctxt->errorCtxt);
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if (ctxt->resourceLoader != NULL)
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xmlCtxtSetResourceLoader(pctxt, ctxt->resourceLoader,
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ctxt->resourceCtxt);
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/*
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* pass in the application data to the parser context.
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*/
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pctxt->_private = ctxt->_private;
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/*
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* try to ensure that new documents included are actually
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* built with the same dictionary as the including document.
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*/
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if ((ctxt->doc != NULL) && (ctxt->doc->dict != NULL)) {
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if (pctxt->dict != NULL)
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xmlDictFree(pctxt->dict);
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pctxt->dict = ctxt->doc->dict;
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xmlDictReference(pctxt->dict);
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}
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/*
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* We set DTDLOAD to make sure that ID attributes declared in
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* external DTDs are detected.
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*/
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xmlCtxtUseOptions(pctxt, ctxt->parseFlags | XML_PARSE_DTDLOAD);
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inputStream = xmlLoadResource(pctxt, URL, NULL, XML_RESOURCE_XINCLUDE);
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if (inputStream == NULL)
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goto error;
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inputPush(pctxt, inputStream);
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xmlParseDocument(pctxt);
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if (pctxt->wellFormed) {
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ret = pctxt->myDoc;
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}
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else {
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ret = NULL;
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if (pctxt->myDoc != NULL)
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xmlFreeDoc(pctxt->myDoc);
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pctxt->myDoc = NULL;
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}
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error:
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if (pctxt->errNo == XML_ERR_NO_MEMORY)
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xmlXIncludeErrMemory(ctxt);
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xmlFreeParserCtxt(pctxt);
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return(ret);
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}
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/**
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* xmlXIncludeAddNode:
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* @ctxt: the XInclude context
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* @cur: the new node
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*
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* Add a new node to process to an XInclude context
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*/
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static xmlXIncludeRefPtr
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xmlXIncludeAddNode(xmlXIncludeCtxtPtr ctxt, xmlNodePtr cur) {
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xmlXIncludeRefPtr ref = NULL;
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xmlXIncludeRefPtr ret = NULL;
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xmlURIPtr uri = NULL;
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xmlChar *href = NULL;
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xmlChar *parse = NULL;
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xmlChar *fragment = NULL;
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xmlChar *base = NULL;
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xmlChar *tmp;
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int xml = 1;
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int local = 0;
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int res;
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if (ctxt == NULL)
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return(NULL);
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if (cur == NULL)
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return(NULL);
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/*
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* read the attributes
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*/
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|
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fragment = xmlXIncludeGetProp(ctxt, cur, XINCLUDE_PARSE_XPOINTER);
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href = xmlXIncludeGetProp(ctxt, cur, XINCLUDE_HREF);
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if (href == NULL) {
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if (fragment == NULL) {
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xmlXIncludeErr(ctxt, cur, XML_XINCLUDE_NO_HREF,
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"href or xpointer must be present\n", parse);
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goto error;
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}
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href = xmlStrdup(BAD_CAST ""); /* @@@@ href is now optional */
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if (href == NULL) {
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xmlXIncludeErrMemory(ctxt);
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goto error;
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}
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}
|
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parse = xmlXIncludeGetProp(ctxt, cur, XINCLUDE_PARSE);
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if (parse != NULL) {
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if (xmlStrEqual(parse, XINCLUDE_PARSE_XML))
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xml = 1;
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else if (xmlStrEqual(parse, XINCLUDE_PARSE_TEXT))
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xml = 0;
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else {
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xmlXIncludeErr(ctxt, cur, XML_XINCLUDE_PARSE_VALUE,
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"invalid value %s for 'parse'\n", parse);
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goto error;
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}
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}
|
|
|
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/*
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* Check the URL and remove any fragment identifier
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*/
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res = xmlParseURISafe((const char *)href, &uri);
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if (uri == NULL) {
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if (res < 0)
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xmlXIncludeErrMemory(ctxt);
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else
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xmlXIncludeErr(ctxt, cur, XML_XINCLUDE_HREF_URI,
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"invalid value href %s\n", href);
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goto error;
|
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}
|
|
|
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if (uri->fragment != NULL) {
|
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if (ctxt->legacy != 0) {
|
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if (fragment == NULL) {
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fragment = (xmlChar *) uri->fragment;
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} else {
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xmlFree(uri->fragment);
|
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}
|
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} else {
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xmlXIncludeErr(ctxt, cur, XML_XINCLUDE_FRAGMENT_ID,
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"Invalid fragment identifier in URI %s use the xpointer attribute\n",
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|
href);
|
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goto error;
|
|
}
|
|
uri->fragment = NULL;
|
|
}
|
|
tmp = xmlSaveUri(uri);
|
|
if (tmp == NULL) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
goto error;
|
|
}
|
|
xmlFree(href);
|
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href = tmp;
|
|
|
|
/*
|
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* Resolve URI
|
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*/
|
|
|
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if (xmlNodeGetBaseSafe(ctxt->doc, cur, &base) < 0) {
|
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xmlXIncludeErrMemory(ctxt);
|
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goto error;
|
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}
|
|
|
|
if (href[0] != 0) {
|
|
if (xmlBuildURISafe(href, base, &tmp) < 0) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
goto error;
|
|
}
|
|
if (tmp == NULL) {
|
|
xmlXIncludeErr(ctxt, cur, XML_XINCLUDE_HREF_URI,
|
|
"failed build URL\n", NULL);
|
|
goto error;
|
|
}
|
|
xmlFree(href);
|
|
href = tmp;
|
|
|
|
if (xmlStrEqual(href, ctxt->doc->URL))
|
|
local = 1;
|
|
} else {
|
|
local = 1;
|
|
}
|
|
|
|
/*
|
|
* If local and xml then we need a fragment
|
|
*/
|
|
if ((local == 1) && (xml == 1) &&
|
|
((fragment == NULL) || (fragment[0] == 0))) {
|
|
xmlXIncludeErr(ctxt, cur, XML_XINCLUDE_RECURSION,
|
|
"detected a local recursion with no xpointer in %s\n",
|
|
href);
|
|
goto error;
|
|
}
|
|
|
|
ref = (xmlXIncludeRefPtr) xmlMalloc(sizeof(xmlXIncludeRef));
|
|
if (ref == NULL) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
goto error;
|
|
}
|
|
memset(ref, 0, sizeof(xmlXIncludeRef));
|
|
|
|
ref->elem = cur;
|
|
ref->xml = xml;
|
|
ref->URI = href;
|
|
href = NULL;
|
|
ref->fragment = fragment;
|
|
fragment = NULL;
|
|
|
|
/*
|
|
* xml:base fixup
|
|
*/
|
|
if (((ctxt->parseFlags & XML_PARSE_NOBASEFIX) == 0) &&
|
|
(cur->doc != NULL) &&
|
|
((cur->doc->parseFlags & XML_PARSE_NOBASEFIX) == 0)) {
|
|
if (base != NULL) {
|
|
ref->base = base;
|
|
base = NULL;
|
|
} else {
|
|
ref->base = xmlStrdup(BAD_CAST "");
|
|
if (ref->base == NULL) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
goto error;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ctxt->incNr >= ctxt->incMax) {
|
|
xmlXIncludeRefPtr *table;
|
|
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
|
|
size_t newSize = ctxt->incMax ? ctxt->incMax * 2 : 1;
|
|
#else
|
|
size_t newSize = ctxt->incMax ? ctxt->incMax * 2 : 4;
|
|
#endif
|
|
|
|
table = (xmlXIncludeRefPtr *) xmlRealloc(ctxt->incTab,
|
|
newSize * sizeof(ctxt->incTab[0]));
|
|
if (table == NULL) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
goto error;
|
|
}
|
|
ctxt->incTab = table;
|
|
ctxt->incMax = newSize;
|
|
}
|
|
ctxt->incTab[ctxt->incNr++] = ref;
|
|
|
|
ret = ref;
|
|
ref = NULL;
|
|
|
|
error:
|
|
xmlXIncludeFreeRef(ref);
|
|
xmlFreeURI(uri);
|
|
xmlFree(href);
|
|
xmlFree(parse);
|
|
xmlFree(fragment);
|
|
xmlFree(base);
|
|
return(ret);
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeRecurseDoc:
|
|
* @ctxt: the XInclude context
|
|
* @doc: the new document
|
|
* @url: the associated URL
|
|
*
|
|
* The XInclude recursive nature is handled at this point.
|
|
*/
|
|
static void
|
|
xmlXIncludeRecurseDoc(xmlXIncludeCtxtPtr ctxt, xmlDocPtr doc) {
|
|
xmlDocPtr oldDoc;
|
|
xmlXIncludeRefPtr *oldIncTab;
|
|
int oldIncMax, oldIncNr, oldIsStream;
|
|
int i;
|
|
|
|
oldDoc = ctxt->doc;
|
|
oldIncMax = ctxt->incMax;
|
|
oldIncNr = ctxt->incNr;
|
|
oldIncTab = ctxt->incTab;
|
|
oldIsStream = ctxt->isStream;
|
|
ctxt->doc = doc;
|
|
ctxt->incMax = 0;
|
|
ctxt->incNr = 0;
|
|
ctxt->incTab = NULL;
|
|
ctxt->isStream = 0;
|
|
|
|
xmlXIncludeDoProcess(ctxt, xmlDocGetRootElement(doc));
|
|
|
|
if (ctxt->incTab != NULL) {
|
|
for (i = 0; i < ctxt->incNr; i++)
|
|
xmlXIncludeFreeRef(ctxt->incTab[i]);
|
|
xmlFree(ctxt->incTab);
|
|
}
|
|
|
|
ctxt->doc = oldDoc;
|
|
ctxt->incMax = oldIncMax;
|
|
ctxt->incNr = oldIncNr;
|
|
ctxt->incTab = oldIncTab;
|
|
ctxt->isStream = oldIsStream;
|
|
}
|
|
|
|
/************************************************************************
|
|
* *
|
|
* Node copy with specific semantic *
|
|
* *
|
|
************************************************************************/
|
|
|
|
static void
|
|
xmlXIncludeBaseFixup(xmlXIncludeCtxtPtr ctxt, xmlNodePtr cur, xmlNodePtr copy,
|
|
const xmlChar *targetBase) {
|
|
xmlChar *base = NULL;
|
|
xmlChar *relBase = NULL;
|
|
xmlNs ns;
|
|
int res;
|
|
|
|
if (cur->type != XML_ELEMENT_NODE)
|
|
return;
|
|
|
|
if (xmlNodeGetBaseSafe(cur->doc, cur, &base) < 0)
|
|
xmlXIncludeErrMemory(ctxt);
|
|
|
|
if ((base != NULL) && !xmlStrEqual(base, targetBase)) {
|
|
if (xmlBuildRelativeURISafe(base, targetBase, &relBase) < 0) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
goto done;
|
|
}
|
|
if (relBase == NULL) {
|
|
xmlXIncludeErr(ctxt, cur,
|
|
XML_XINCLUDE_HREF_URI,
|
|
"Building relative URI failed: %s\n",
|
|
base);
|
|
goto done;
|
|
}
|
|
|
|
/*
|
|
* If the new base doesn't contain a slash, it can be omitted.
|
|
*/
|
|
if (xmlStrchr(relBase, '/') != NULL) {
|
|
res = xmlNodeSetBase(copy, relBase);
|
|
if (res < 0)
|
|
xmlXIncludeErrMemory(ctxt);
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Delete existing xml:base if bases are equal
|
|
*/
|
|
memset(&ns, 0, sizeof(ns));
|
|
ns.href = XML_XML_NAMESPACE;
|
|
xmlUnsetNsProp(copy, &ns, BAD_CAST "base");
|
|
|
|
done:
|
|
xmlFree(base);
|
|
xmlFree(relBase);
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeCopyNode:
|
|
* @ctxt: the XInclude context
|
|
* @elem: the element
|
|
* @copyChildren: copy children instead of node if true
|
|
*
|
|
* Make a copy of the node while expanding nested XIncludes.
|
|
*
|
|
* Returns a node list, not a single node.
|
|
*/
|
|
static xmlNodePtr
|
|
xmlXIncludeCopyNode(xmlXIncludeCtxtPtr ctxt, xmlNodePtr elem,
|
|
int copyChildren, const xmlChar *targetBase) {
|
|
xmlNodePtr result = NULL;
|
|
xmlNodePtr insertParent = NULL;
|
|
xmlNodePtr insertLast = NULL;
|
|
xmlNodePtr cur;
|
|
xmlNodePtr item;
|
|
int depth = 0;
|
|
|
|
if (copyChildren) {
|
|
cur = elem->children;
|
|
if (cur == NULL)
|
|
return(NULL);
|
|
} else {
|
|
cur = elem;
|
|
}
|
|
|
|
while (1) {
|
|
xmlNodePtr copy = NULL;
|
|
int recurse = 0;
|
|
|
|
if ((cur->type == XML_DOCUMENT_NODE) ||
|
|
(cur->type == XML_DTD_NODE)) {
|
|
;
|
|
} else if ((cur->type == XML_ELEMENT_NODE) &&
|
|
(cur->ns != NULL) &&
|
|
(xmlStrEqual(cur->name, XINCLUDE_NODE)) &&
|
|
((xmlStrEqual(cur->ns->href, XINCLUDE_NS)) ||
|
|
(xmlStrEqual(cur->ns->href, XINCLUDE_OLD_NS)))) {
|
|
xmlXIncludeRefPtr ref = xmlXIncludeExpandNode(ctxt, cur);
|
|
|
|
if (ref == NULL)
|
|
goto error;
|
|
/*
|
|
* TODO: Insert XML_XINCLUDE_START and XML_XINCLUDE_END nodes
|
|
*/
|
|
for (item = ref->inc; item != NULL; item = item->next) {
|
|
copy = xmlStaticCopyNode(item, ctxt->doc, insertParent, 1);
|
|
if (copy == NULL) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
goto error;
|
|
}
|
|
|
|
if (result == NULL)
|
|
result = copy;
|
|
if (insertLast != NULL) {
|
|
insertLast->next = copy;
|
|
copy->prev = insertLast;
|
|
} else if (insertParent != NULL) {
|
|
insertParent->children = copy;
|
|
}
|
|
insertLast = copy;
|
|
|
|
if ((depth == 0) && (targetBase != NULL))
|
|
xmlXIncludeBaseFixup(ctxt, item, copy, targetBase);
|
|
}
|
|
} else {
|
|
copy = xmlStaticCopyNode(cur, ctxt->doc, insertParent, 2);
|
|
if (copy == NULL) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
goto error;
|
|
}
|
|
|
|
if (result == NULL)
|
|
result = copy;
|
|
if (insertLast != NULL) {
|
|
insertLast->next = copy;
|
|
copy->prev = insertLast;
|
|
} else if (insertParent != NULL) {
|
|
insertParent->children = copy;
|
|
}
|
|
insertLast = copy;
|
|
|
|
if ((depth == 0) && (targetBase != NULL))
|
|
xmlXIncludeBaseFixup(ctxt, cur, copy, targetBase);
|
|
|
|
recurse = (cur->type != XML_ENTITY_REF_NODE) &&
|
|
(cur->children != NULL);
|
|
}
|
|
|
|
if (recurse) {
|
|
cur = cur->children;
|
|
insertParent = insertLast;
|
|
insertLast = NULL;
|
|
depth += 1;
|
|
continue;
|
|
}
|
|
|
|
if (cur == elem)
|
|
return(result);
|
|
|
|
while (cur->next == NULL) {
|
|
if (insertParent != NULL)
|
|
insertParent->last = insertLast;
|
|
cur = cur->parent;
|
|
if (cur == elem)
|
|
return(result);
|
|
insertLast = insertParent;
|
|
insertParent = insertParent->parent;
|
|
depth -= 1;
|
|
}
|
|
|
|
cur = cur->next;
|
|
}
|
|
|
|
error:
|
|
xmlFreeNodeList(result);
|
|
return(NULL);
|
|
}
|
|
|
|
#ifdef LIBXML_XPTR_ENABLED
|
|
/**
|
|
* xmlXIncludeCopyXPointer:
|
|
* @ctxt: the XInclude context
|
|
* @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, xmlXPathObjectPtr obj,
|
|
const xmlChar *targetBase) {
|
|
xmlNodePtr list = NULL, last = NULL, copy;
|
|
int i;
|
|
|
|
if ((ctxt == NULL) || (obj == NULL))
|
|
return(NULL);
|
|
switch (obj->type) {
|
|
case XPATH_NODESET: {
|
|
xmlNodeSetPtr set = obj->nodesetval;
|
|
if (set == NULL)
|
|
break;
|
|
for (i = 0;i < set->nodeNr;i++) {
|
|
xmlNodePtr node;
|
|
|
|
if (set->nodeTab[i] == NULL)
|
|
continue;
|
|
switch (set->nodeTab[i]->type) {
|
|
case XML_DOCUMENT_NODE:
|
|
case XML_HTML_DOCUMENT_NODE:
|
|
node = xmlDocGetRootElement(
|
|
(xmlDocPtr) set->nodeTab[i]);
|
|
if (node == NULL) {
|
|
xmlXIncludeErr(ctxt, set->nodeTab[i],
|
|
XML_ERR_INTERNAL_ERROR,
|
|
"document without root\n", NULL);
|
|
continue;
|
|
}
|
|
break;
|
|
case XML_TEXT_NODE:
|
|
case XML_CDATA_SECTION_NODE:
|
|
case XML_ELEMENT_NODE:
|
|
case XML_PI_NODE:
|
|
case XML_COMMENT_NODE:
|
|
node = set->nodeTab[i];
|
|
break;
|
|
default:
|
|
xmlXIncludeErr(ctxt, set->nodeTab[i],
|
|
XML_XINCLUDE_XPTR_RESULT,
|
|
"invalid node type in XPtr result\n",
|
|
NULL);
|
|
continue; /* for */
|
|
}
|
|
/*
|
|
* OPTIMIZE TODO: External documents should already be
|
|
* expanded, so xmlDocCopyNode should work as well.
|
|
* xmlXIncludeCopyNode is only required for the initial
|
|
* document.
|
|
*/
|
|
copy = xmlXIncludeCopyNode(ctxt, node, 0, targetBase);
|
|
if (copy == NULL) {
|
|
xmlFreeNodeList(list);
|
|
return(NULL);
|
|
}
|
|
if (last == NULL) {
|
|
list = copy;
|
|
} else {
|
|
while (last->next != NULL)
|
|
last = last->next;
|
|
copy->prev = last;
|
|
last->next = copy;
|
|
}
|
|
last = copy;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
return(list);
|
|
}
|
|
#endif
|
|
|
|
/************************************************************************
|
|
* *
|
|
* 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
|
|
* @name: the entity name
|
|
*
|
|
* Implements the merge of one entity
|
|
*/
|
|
static void
|
|
xmlXIncludeMergeEntity(void *payload, void *vdata,
|
|
const xmlChar *name ATTRIBUTE_UNUSED) {
|
|
xmlEntityPtr ent = (xmlEntityPtr) payload;
|
|
xmlXIncludeMergeDataPtr data = (xmlXIncludeMergeDataPtr) vdata;
|
|
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;
|
|
}
|
|
prev = xmlGetDocEntity(doc, ent->name);
|
|
if (prev == NULL) {
|
|
ret = xmlAddDocEntity(doc, ent->name, ent->etype, ent->ExternalID,
|
|
ent->SystemID, ent->content);
|
|
if (ret == NULL) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
return;
|
|
}
|
|
if (ent->URI != NULL) {
|
|
ret->URI = xmlStrdup(ent->URI);
|
|
if (ret->URI == 0)
|
|
xmlXIncludeErrMemory(ctxt);
|
|
}
|
|
} else {
|
|
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
|
|
*
|
|
* Implements 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) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
return(-1);
|
|
}
|
|
}
|
|
|
|
source = from->intSubset;
|
|
if ((source != NULL) && (source->entities != NULL)) {
|
|
xmlXIncludeMergeData data;
|
|
|
|
data.ctxt = ctxt;
|
|
data.doc = doc;
|
|
|
|
xmlHashScan((xmlHashTablePtr) source->entities,
|
|
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,
|
|
xmlXIncludeMergeEntity, &data);
|
|
}
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeLoadDoc:
|
|
* @ctxt: the XInclude context
|
|
* @url: the associated URL
|
|
* @ref: an XMLXincludeRefPtr
|
|
*
|
|
* 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, xmlXIncludeRefPtr ref) {
|
|
xmlXIncludeDocPtr cache;
|
|
xmlDocPtr doc;
|
|
const xmlChar *url = ref->URI;
|
|
const xmlChar *fragment = ref->fragment;
|
|
int i = 0;
|
|
int ret = -1;
|
|
int cacheNr;
|
|
#ifdef LIBXML_XPTR_ENABLED
|
|
int saveFlags;
|
|
#endif
|
|
|
|
/*
|
|
* 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 = ctxt->doc;
|
|
goto loaded;
|
|
}
|
|
|
|
/*
|
|
* Prevent reloading the document twice.
|
|
*/
|
|
for (i = 0; i < ctxt->urlNr; i++) {
|
|
if (xmlStrEqual(url, ctxt->urlTab[i].url)) {
|
|
if (ctxt->urlTab[i].expanding) {
|
|
xmlXIncludeErr(ctxt, ref->elem, XML_XINCLUDE_RECURSION,
|
|
"inclusion loop detected\n", NULL);
|
|
goto error;
|
|
}
|
|
doc = ctxt->urlTab[i].doc;
|
|
if (doc == NULL)
|
|
goto error;
|
|
goto loaded;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Load it.
|
|
*/
|
|
#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
|
|
|
|
doc = xmlXIncludeParseFile(ctxt, (const char *)url);
|
|
#ifdef LIBXML_XPTR_ENABLED
|
|
ctxt->parseFlags = saveFlags;
|
|
#endif
|
|
|
|
/* Also cache NULL docs */
|
|
if (ctxt->urlNr >= ctxt->urlMax) {
|
|
xmlXIncludeDoc *tmp;
|
|
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
|
|
size_t newSize = ctxt->urlMax ? ctxt->urlMax * 2 : 1;
|
|
#else
|
|
size_t newSize = ctxt->urlMax ? ctxt->urlMax * 2 : 8;
|
|
#endif
|
|
|
|
tmp = xmlRealloc(ctxt->urlTab, sizeof(xmlXIncludeDoc) * newSize);
|
|
if (tmp == NULL) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
xmlFreeDoc(doc);
|
|
goto error;
|
|
}
|
|
ctxt->urlMax = newSize;
|
|
ctxt->urlTab = tmp;
|
|
}
|
|
cache = &ctxt->urlTab[ctxt->urlNr];
|
|
cache->doc = doc;
|
|
cache->url = xmlStrdup(url);
|
|
if (cache->url == NULL) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
xmlFreeDoc(doc);
|
|
goto error;
|
|
}
|
|
cache->expanding = 0;
|
|
cacheNr = ctxt->urlNr++;
|
|
|
|
if (doc == NULL)
|
|
goto error;
|
|
/*
|
|
* It's possible that the requested URL has been mapped to a
|
|
* completely different location (e.g. through a catalog entry).
|
|
* To check for this, we compare the URL with that of the doc
|
|
* and change it if they disagree (bug 146988).
|
|
*/
|
|
if ((doc->URL != NULL) && (!xmlStrEqual(url, doc->URL)))
|
|
url = doc->URL;
|
|
|
|
/*
|
|
* Make sure we have all entities fixed up
|
|
*/
|
|
xmlXIncludeMergeEntities(ctxt, ctxt->doc, doc);
|
|
|
|
/*
|
|
* We don't need the DTD anymore, free up space
|
|
if (doc->intSubset != NULL) {
|
|
xmlUnlinkNode((xmlNodePtr) doc->intSubset);
|
|
xmlFreeNode((xmlNodePtr) doc->intSubset);
|
|
doc->intSubset = NULL;
|
|
}
|
|
if (doc->extSubset != NULL) {
|
|
xmlUnlinkNode((xmlNodePtr) doc->extSubset);
|
|
xmlFreeNode((xmlNodePtr) doc->extSubset);
|
|
doc->extSubset = NULL;
|
|
}
|
|
*/
|
|
cache->expanding = 1;
|
|
xmlXIncludeRecurseDoc(ctxt, doc);
|
|
/* urlTab might be reallocated. */
|
|
cache = &ctxt->urlTab[cacheNr];
|
|
cache->expanding = 0;
|
|
|
|
loaded:
|
|
if (fragment == NULL) {
|
|
xmlNodePtr root;
|
|
|
|
root = xmlDocGetRootElement(doc);
|
|
if (root == NULL) {
|
|
xmlXIncludeErr(ctxt, ref->elem, XML_ERR_INTERNAL_ERROR,
|
|
"document without root\n", NULL);
|
|
goto error;
|
|
}
|
|
|
|
ref->inc = xmlDocCopyNode(root, ctxt->doc, 1);
|
|
if (ref->inc == NULL) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
goto error;
|
|
}
|
|
|
|
if (ref->base != NULL)
|
|
xmlXIncludeBaseFixup(ctxt, root, ref->inc, ref->base);
|
|
}
|
|
#ifdef LIBXML_XPTR_ENABLED
|
|
else {
|
|
/*
|
|
* Computes the XPointer expression and make a copy used
|
|
* as the replacement copy.
|
|
*/
|
|
xmlXPathObjectPtr xptr;
|
|
xmlNodeSetPtr set;
|
|
|
|
if (ctxt->isStream && doc == ctxt->doc) {
|
|
xmlXIncludeErr(ctxt, ref->elem, XML_XINCLUDE_XPTR_FAILED,
|
|
"XPointer expressions not allowed in streaming"
|
|
" mode\n", NULL);
|
|
goto error;
|
|
}
|
|
|
|
if (ctxt->xpctxt == NULL) {
|
|
ctxt->xpctxt = xmlXPathNewContext(doc);
|
|
if (ctxt->xpctxt == NULL) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
goto error;
|
|
}
|
|
if (ctxt->errorHandler != NULL)
|
|
xmlXPathSetErrorHandler(ctxt->xpctxt, ctxt->errorHandler,
|
|
ctxt->errorCtxt);
|
|
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
|
|
ctxt->xpctxt->opLimit = 100000;
|
|
#endif
|
|
} else {
|
|
ctxt->xpctxt->doc = doc;
|
|
}
|
|
xptr = xmlXPtrEval(fragment, ctxt->xpctxt);
|
|
if (ctxt->xpctxt->lastError.code != XML_ERR_OK) {
|
|
if (ctxt->xpctxt->lastError.code == XML_ERR_NO_MEMORY)
|
|
xmlXIncludeErrMemory(ctxt);
|
|
else
|
|
xmlXIncludeErr(ctxt, ref->elem, XML_XINCLUDE_XPTR_FAILED,
|
|
"XPointer evaluation failed: #%s\n",
|
|
fragment);
|
|
goto error;
|
|
}
|
|
if (xptr == NULL)
|
|
goto done;
|
|
switch (xptr->type) {
|
|
case XPATH_UNDEFINED:
|
|
case XPATH_BOOLEAN:
|
|
case XPATH_NUMBER:
|
|
case XPATH_STRING:
|
|
case XPATH_USERS:
|
|
case XPATH_XSLT_TREE:
|
|
xmlXIncludeErr(ctxt, ref->elem, XML_XINCLUDE_XPTR_RESULT,
|
|
"XPointer is not a range: #%s\n",
|
|
fragment);
|
|
xmlXPathFreeObject(xptr);
|
|
goto error;
|
|
case XPATH_NODESET:
|
|
break;
|
|
|
|
}
|
|
set = xptr->nodesetval;
|
|
if (set != NULL) {
|
|
for (i = 0;i < set->nodeNr;i++) {
|
|
if (set->nodeTab[i] == NULL)
|
|
continue;
|
|
switch (set->nodeTab[i]->type) {
|
|
case XML_ELEMENT_NODE:
|
|
case XML_TEXT_NODE:
|
|
case XML_CDATA_SECTION_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:
|
|
continue;
|
|
|
|
case XML_ATTRIBUTE_NODE:
|
|
xmlXIncludeErr(ctxt, ref->elem,
|
|
XML_XINCLUDE_XPTR_RESULT,
|
|
"XPointer selects an attribute: #%s\n",
|
|
fragment);
|
|
set->nodeTab[i] = NULL;
|
|
continue;
|
|
case XML_NAMESPACE_DECL:
|
|
xmlXIncludeErr(ctxt, ref->elem,
|
|
XML_XINCLUDE_XPTR_RESULT,
|
|
"XPointer selects a namespace: #%s\n",
|
|
fragment);
|
|
set->nodeTab[i] = NULL;
|
|
continue;
|
|
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:
|
|
case XML_XINCLUDE_START:
|
|
case XML_XINCLUDE_END:
|
|
xmlXIncludeErr(ctxt, ref->elem,
|
|
XML_XINCLUDE_XPTR_RESULT,
|
|
"XPointer selects unexpected nodes: #%s\n",
|
|
fragment);
|
|
set->nodeTab[i] = NULL;
|
|
set->nodeTab[i] = NULL;
|
|
continue; /* for */
|
|
}
|
|
}
|
|
}
|
|
ref->inc = xmlXIncludeCopyXPointer(ctxt, xptr, ref->base);
|
|
xmlXPathFreeObject(xptr);
|
|
}
|
|
#endif
|
|
|
|
done:
|
|
ret = 0;
|
|
|
|
error:
|
|
return(ret);
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeLoadTxt:
|
|
* @ctxt: the XInclude context
|
|
* @ref: an XMLXincludeRefPtr
|
|
*
|
|
* Load the content, and store the result in the XInclude context
|
|
*
|
|
* Returns 0 in case of success, -1 in case of failure
|
|
*/
|
|
static int
|
|
xmlXIncludeLoadTxt(xmlXIncludeCtxtPtr ctxt, xmlXIncludeRefPtr ref) {
|
|
xmlParserInputBufferPtr buf;
|
|
xmlNodePtr node = NULL;
|
|
const xmlChar *url = ref->URI;
|
|
int i;
|
|
int ret = -1;
|
|
xmlChar *encoding = NULL;
|
|
xmlCharEncodingHandlerPtr handler = NULL;
|
|
xmlParserCtxtPtr pctxt = NULL;
|
|
xmlParserInputPtr inputStream = NULL;
|
|
int len;
|
|
int res;
|
|
const xmlChar *content;
|
|
|
|
/*
|
|
* Handling of references to the local document are done
|
|
* directly through ctxt->doc.
|
|
*/
|
|
if (url[0] == 0) {
|
|
xmlXIncludeErr(ctxt, ref->elem, XML_XINCLUDE_TEXT_DOCUMENT,
|
|
"text serialization of document not available\n", NULL);
|
|
goto error;
|
|
}
|
|
|
|
/*
|
|
* Prevent reloading the document twice.
|
|
*/
|
|
for (i = 0; i < ctxt->txtNr; i++) {
|
|
if (xmlStrEqual(url, ctxt->txtTab[i].url)) {
|
|
node = xmlNewDocText(ctxt->doc, ctxt->txtTab[i].text);
|
|
if (node == NULL)
|
|
xmlXIncludeErrMemory(ctxt);
|
|
goto loaded;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Try to get the encoding if available
|
|
*/
|
|
if (ref->elem != NULL) {
|
|
encoding = xmlXIncludeGetProp(ctxt, ref->elem, XINCLUDE_PARSE_ENCODING);
|
|
}
|
|
if (encoding != NULL) {
|
|
res = xmlOpenCharEncodingHandler((const char *) encoding,
|
|
/* output */ 0, &handler);
|
|
|
|
if (res != 0) {
|
|
if (res == XML_ERR_NO_MEMORY) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
} else if (res == XML_ERR_UNSUPPORTED_ENCODING) {
|
|
xmlXIncludeErr(ctxt, ref->elem, XML_XINCLUDE_UNKNOWN_ENCODING,
|
|
"encoding %s not supported\n", encoding);
|
|
goto error;
|
|
} else {
|
|
xmlXIncludeErr(ctxt, ref->elem, res,
|
|
"unexpected error from iconv or ICU\n", NULL);
|
|
goto error;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Load it.
|
|
*/
|
|
pctxt = xmlNewParserCtxt();
|
|
if (pctxt == NULL) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
goto error;
|
|
}
|
|
if (ctxt->errorHandler != NULL)
|
|
xmlCtxtSetErrorHandler(pctxt, ctxt->errorHandler, ctxt->errorCtxt);
|
|
if (ctxt->resourceLoader != NULL)
|
|
xmlCtxtSetResourceLoader(pctxt, ctxt->resourceLoader,
|
|
ctxt->resourceCtxt);
|
|
|
|
inputStream = xmlLoadResource(pctxt, (const char*) url, NULL,
|
|
XML_RESOURCE_XINCLUDE_TEXT);
|
|
if (inputStream == NULL) {
|
|
if (pctxt->errNo == XML_ERR_NO_MEMORY)
|
|
xmlXIncludeErrMemory(ctxt);
|
|
else
|
|
xmlXIncludeErr(ctxt, NULL, pctxt->errNo, "load error", NULL);
|
|
goto error;
|
|
}
|
|
buf = inputStream->buf;
|
|
if (buf == NULL)
|
|
goto error;
|
|
if (buf->encoder)
|
|
xmlCharEncCloseFunc(buf->encoder);
|
|
buf->encoder = handler;
|
|
handler = NULL;
|
|
|
|
node = xmlNewDocText(ctxt->doc, NULL);
|
|
if (node == NULL) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
goto error;
|
|
}
|
|
|
|
/*
|
|
* Scan all chars from the resource and add the to the node
|
|
*/
|
|
do {
|
|
res = xmlParserInputBufferRead(buf, 4096);
|
|
} while (res > 0);
|
|
if (res < 0) {
|
|
if (buf->error == XML_ERR_NO_MEMORY)
|
|
xmlXIncludeErrMemory(ctxt);
|
|
else
|
|
xmlXIncludeErr(ctxt, NULL, buf->error, "read error", NULL);
|
|
goto error;
|
|
}
|
|
|
|
content = xmlBufContent(buf->buffer);
|
|
len = xmlBufLength(buf->buffer);
|
|
for (i = 0; i < len;) {
|
|
int cur;
|
|
int l;
|
|
|
|
l = len - i;
|
|
cur = xmlGetUTF8Char(&content[i], &l);
|
|
if ((cur < 0) || (!IS_CHAR(cur))) {
|
|
xmlXIncludeErr(ctxt, ref->elem, XML_XINCLUDE_INVALID_CHAR,
|
|
"%s contains invalid char\n", url);
|
|
goto error;
|
|
}
|
|
|
|
i += l;
|
|
}
|
|
|
|
if (xmlNodeAddContentLen(node, content, len) < 0)
|
|
xmlXIncludeErrMemory(ctxt);
|
|
|
|
if (ctxt->txtNr >= ctxt->txtMax) {
|
|
xmlXIncludeTxt *tmp;
|
|
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
|
|
size_t newSize = ctxt->txtMax ? ctxt->txtMax * 2 : 1;
|
|
#else
|
|
size_t newSize = ctxt->txtMax ? ctxt->txtMax * 2 : 8;
|
|
#endif
|
|
|
|
tmp = xmlRealloc(ctxt->txtTab, sizeof(xmlXIncludeTxt) * newSize);
|
|
if (tmp == NULL) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
goto error;
|
|
}
|
|
ctxt->txtMax = newSize;
|
|
ctxt->txtTab = tmp;
|
|
}
|
|
ctxt->txtTab[ctxt->txtNr].text = xmlStrdup(node->content);
|
|
if ((node->content != NULL) &&
|
|
(ctxt->txtTab[ctxt->txtNr].text == NULL)) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
goto error;
|
|
}
|
|
ctxt->txtTab[ctxt->txtNr].url = xmlStrdup(url);
|
|
if (ctxt->txtTab[ctxt->txtNr].url == NULL) {
|
|
xmlXIncludeErrMemory(ctxt);
|
|
xmlFree(ctxt->txtTab[ctxt->txtNr].text);
|
|
goto error;
|
|
}
|
|
ctxt->txtNr++;
|
|
|
|
loaded:
|
|
/*
|
|
* Add the element as the replacement copy.
|
|
*/
|
|
ref->inc = node;
|
|
node = NULL;
|
|
ret = 0;
|
|
|
|
error:
|
|
xmlFreeNode(node);
|
|
xmlFreeInputStream(inputStream);
|
|
xmlFreeParserCtxt(pctxt);
|
|
xmlCharEncCloseFunc(handler);
|
|
xmlFree(encoding);
|
|
return(ret);
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeLoadFallback:
|
|
* @ctxt: the XInclude context
|
|
* @fallback: the fallback node
|
|
* @ref: an XMLXincludeRefPtr
|
|
*
|
|
* Load the content of the fallback node, and store the result
|
|
* in the XInclude context
|
|
*
|
|
* Returns 0 in case of success, -1 in case of failure
|
|
*/
|
|
static int
|
|
xmlXIncludeLoadFallback(xmlXIncludeCtxtPtr ctxt, xmlNodePtr fallback,
|
|
xmlXIncludeRefPtr ref) {
|
|
int ret = 0;
|
|
int oldNbErrors;
|
|
|
|
if ((fallback == NULL) || (fallback->type == XML_NAMESPACE_DECL) ||
|
|
(ctxt == NULL))
|
|
return(-1);
|
|
if (fallback->children != NULL) {
|
|
/*
|
|
* It's possible that the fallback also has 'includes'
|
|
* (Bug 129969), so we re-process the fallback just in case
|
|
*/
|
|
oldNbErrors = ctxt->nbErrors;
|
|
ref->inc = xmlXIncludeCopyNode(ctxt, fallback, 1, ref->base);
|
|
if (ctxt->nbErrors > oldNbErrors)
|
|
ret = -1;
|
|
} else {
|
|
ref->inc = NULL;
|
|
}
|
|
ref->fallback = 1;
|
|
return(ret);
|
|
}
|
|
|
|
/************************************************************************
|
|
* *
|
|
* XInclude Processing *
|
|
* *
|
|
************************************************************************/
|
|
|
|
/**
|
|
* xmlXIncludeExpandNode:
|
|
* @ctxt: an XInclude context
|
|
* @node: an XInclude node
|
|
*
|
|
* If the XInclude node wasn't processed yet, create a new RefPtr,
|
|
* add it to ctxt->incTab and load the included items.
|
|
*
|
|
* Returns the new or existing xmlXIncludeRefPtr, or NULL in case of error.
|
|
*/
|
|
static xmlXIncludeRefPtr
|
|
xmlXIncludeExpandNode(xmlXIncludeCtxtPtr ctxt, xmlNodePtr node) {
|
|
xmlXIncludeRefPtr ref;
|
|
int i;
|
|
|
|
if (ctxt->fatalErr)
|
|
return(NULL);
|
|
if (ctxt->depth >= XINCLUDE_MAX_DEPTH) {
|
|
xmlXIncludeErr(ctxt, node, XML_XINCLUDE_RECURSION,
|
|
"maximum recursion depth exceeded\n", NULL);
|
|
ctxt->fatalErr = 1;
|
|
return(NULL);
|
|
}
|
|
|
|
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
|
|
/*
|
|
* The XInclude engine offers no protection against exponential
|
|
* expansion attacks similar to "billion laughs". Avoid timeouts by
|
|
* limiting the total number of replacements when fuzzing.
|
|
*
|
|
* Unfortuately, a single XInclude can already result in quadratic
|
|
* behavior:
|
|
*
|
|
* <doc xmlns:xi="http://www.w3.org/2001/XInclude">
|
|
* <xi:include xpointer="xpointer(//e)"/>
|
|
* <e>
|
|
* <e>
|
|
* <e>
|
|
* <!-- more nested elements -->
|
|
* </e>
|
|
* </e>
|
|
* </e>
|
|
* </doc>
|
|
*/
|
|
if (ctxt->incTotal >= 20)
|
|
return(NULL);
|
|
ctxt->incTotal++;
|
|
#endif
|
|
|
|
for (i = 0; i < ctxt->incNr; i++) {
|
|
if (ctxt->incTab[i]->elem == node) {
|
|
if (ctxt->incTab[i]->expanding) {
|
|
xmlXIncludeErr(ctxt, node, XML_XINCLUDE_RECURSION,
|
|
"inclusion loop detected\n", NULL);
|
|
return(NULL);
|
|
}
|
|
return(ctxt->incTab[i]);
|
|
}
|
|
}
|
|
|
|
ref = xmlXIncludeAddNode(ctxt, node);
|
|
if (ref == NULL)
|
|
return(NULL);
|
|
ref->expanding = 1;
|
|
ctxt->depth++;
|
|
xmlXIncludeLoadNode(ctxt, ref);
|
|
ctxt->depth--;
|
|
ref->expanding = 0;
|
|
|
|
return(ref);
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeLoadNode:
|
|
* @ctxt: an XInclude context
|
|
* @ref: an xmlXIncludeRefPtr
|
|
*
|
|
* Find and load the infoset replacement for the given node.
|
|
*
|
|
* Returns 0 if substitution succeeded, -1 if some processing failed
|
|
*/
|
|
static int
|
|
xmlXIncludeLoadNode(xmlXIncludeCtxtPtr ctxt, xmlXIncludeRefPtr ref) {
|
|
xmlNodePtr cur;
|
|
int ret;
|
|
|
|
if ((ctxt == NULL) || (ref == NULL))
|
|
return(-1);
|
|
cur = ref->elem;
|
|
if (cur == NULL)
|
|
return(-1);
|
|
|
|
if (ref->xml) {
|
|
ret = xmlXIncludeLoadDoc(ctxt, ref);
|
|
/* xmlXIncludeGetFragment(ctxt, cur, URI); */
|
|
} else {
|
|
ret = xmlXIncludeLoadTxt(ctxt, ref);
|
|
}
|
|
|
|
if (ret < 0) {
|
|
xmlNodePtr children;
|
|
|
|
/*
|
|
* Time to try a fallback if available
|
|
*/
|
|
children = cur->children;
|
|
while (children != NULL) {
|
|
if ((children->type == XML_ELEMENT_NODE) &&
|
|
(children->ns != NULL) &&
|
|
(xmlStrEqual(children->name, XINCLUDE_FALLBACK)) &&
|
|
((xmlStrEqual(children->ns->href, XINCLUDE_NS)) ||
|
|
(xmlStrEqual(children->ns->href, XINCLUDE_OLD_NS)))) {
|
|
ret = xmlXIncludeLoadFallback(ctxt, children, ref);
|
|
break;
|
|
}
|
|
children = children->next;
|
|
}
|
|
}
|
|
if (ret < 0) {
|
|
xmlXIncludeErr(ctxt, cur, XML_XINCLUDE_NO_FALLBACK,
|
|
"could not load %s, and no fallback was found\n",
|
|
ref->URI);
|
|
}
|
|
|
|
return(0);
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeIncludeNode:
|
|
* @ctxt: an XInclude context
|
|
* @ref: an xmlXIncludeRefPtr
|
|
*
|
|
* Implement the infoset replacement for the given node
|
|
*
|
|
* Returns 0 if substitution succeeded, -1 if some processing failed
|
|
*/
|
|
static int
|
|
xmlXIncludeIncludeNode(xmlXIncludeCtxtPtr ctxt, xmlXIncludeRefPtr ref) {
|
|
xmlNodePtr cur, end, list, tmp;
|
|
|
|
if ((ctxt == NULL) || (ref == NULL))
|
|
return(-1);
|
|
cur = ref->elem;
|
|
if ((cur == NULL) || (cur->type == XML_NAMESPACE_DECL))
|
|
return(-1);
|
|
|
|
list = ref->inc;
|
|
ref->inc = NULL;
|
|
|
|
/*
|
|
* Check against the risk of generating a multi-rooted document
|
|
*/
|
|
if ((cur->parent != NULL) &&
|
|
(cur->parent->type != XML_ELEMENT_NODE)) {
|
|
int nb_elem = 0;
|
|
|
|
tmp = list;
|
|
while (tmp != NULL) {
|
|
if (tmp->type == XML_ELEMENT_NODE)
|
|
nb_elem++;
|
|
tmp = tmp->next;
|
|
}
|
|
if (nb_elem > 1) {
|
|
xmlXIncludeErr(ctxt, ref->elem, XML_XINCLUDE_MULTIPLE_ROOT,
|
|
"XInclude error: would result in multiple root nodes\n",
|
|
NULL);
|
|
xmlFreeNodeList(list);
|
|
return(-1);
|
|
}
|
|
}
|
|
|
|
if (ctxt->parseFlags & XML_PARSE_NOXINCNODE) {
|
|
/*
|
|
* Add the list of nodes
|
|
*
|
|
* TODO: Coalesce text nodes unless we are streaming mode.
|
|
*/
|
|
while (list != NULL) {
|
|
end = list;
|
|
list = list->next;
|
|
|
|
if (xmlAddPrevSibling(cur, end) == NULL) {
|
|
xmlUnlinkNode(end);
|
|
xmlFreeNode(end);
|
|
goto err_memory;
|
|
}
|
|
}
|
|
xmlUnlinkNode(cur);
|
|
xmlFreeNode(cur);
|
|
} else {
|
|
xmlNodePtr child, next;
|
|
|
|
/*
|
|
* Change the current node as an XInclude start one, and add an
|
|
* XInclude end one
|
|
*/
|
|
if (ref->fallback)
|
|
xmlUnsetProp(cur, BAD_CAST "href");
|
|
cur->type = XML_XINCLUDE_START;
|
|
/* Remove fallback children */
|
|
for (child = cur->children; child != NULL; child = next) {
|
|
next = child->next;
|
|
xmlUnlinkNode(child);
|
|
xmlFreeNode(child);
|
|
}
|
|
end = xmlNewDocNode(cur->doc, cur->ns, cur->name, NULL);
|
|
if (end == NULL)
|
|
goto err_memory;
|
|
end->type = XML_XINCLUDE_END;
|
|
if (xmlAddNextSibling(cur, end) == NULL) {
|
|
xmlFreeNode(end);
|
|
goto err_memory;
|
|
}
|
|
|
|
/*
|
|
* Add the list of nodes
|
|
*/
|
|
while (list != NULL) {
|
|
cur = list;
|
|
list = list->next;
|
|
|
|
if (xmlAddPrevSibling(end, cur) == NULL) {
|
|
xmlUnlinkNode(cur);
|
|
xmlFreeNode(cur);
|
|
goto err_memory;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
return(0);
|
|
|
|
err_memory:
|
|
xmlXIncludeErrMemory(ctxt);
|
|
xmlFreeNodeList(list);
|
|
return(-1);
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeTestNode:
|
|
* @ctxt: the XInclude processing context
|
|
* @node: an XInclude node
|
|
*
|
|
* test if the node is an XInclude node
|
|
*
|
|
* Returns 1 true, 0 otherwise
|
|
*/
|
|
static int
|
|
xmlXIncludeTestNode(xmlXIncludeCtxtPtr ctxt, xmlNodePtr node) {
|
|
if (node == NULL)
|
|
return(0);
|
|
if (node->type != XML_ELEMENT_NODE)
|
|
return(0);
|
|
if (node->ns == NULL)
|
|
return(0);
|
|
if ((xmlStrEqual(node->ns->href, XINCLUDE_NS)) ||
|
|
(xmlStrEqual(node->ns->href, XINCLUDE_OLD_NS))) {
|
|
if (xmlStrEqual(node->ns->href, XINCLUDE_OLD_NS)) {
|
|
if (ctxt->legacy == 0) {
|
|
#if 0 /* wait for the XML Core Working Group to get something stable ! */
|
|
xmlXIncludeWarn(ctxt, node, XML_XINCLUDE_DEPRECATED_NS,
|
|
"Deprecated XInclude namespace found, use %s",
|
|
XINCLUDE_NS);
|
|
#endif
|
|
ctxt->legacy = 1;
|
|
}
|
|
}
|
|
if (xmlStrEqual(node->name, XINCLUDE_NODE)) {
|
|
xmlNodePtr child = node->children;
|
|
int nb_fallback = 0;
|
|
|
|
while (child != NULL) {
|
|
if ((child->type == XML_ELEMENT_NODE) &&
|
|
(child->ns != NULL) &&
|
|
((xmlStrEqual(child->ns->href, XINCLUDE_NS)) ||
|
|
(xmlStrEqual(child->ns->href, XINCLUDE_OLD_NS)))) {
|
|
if (xmlStrEqual(child->name, XINCLUDE_NODE)) {
|
|
xmlXIncludeErr(ctxt, node,
|
|
XML_XINCLUDE_INCLUDE_IN_INCLUDE,
|
|
"%s has an 'include' child\n",
|
|
XINCLUDE_NODE);
|
|
return(0);
|
|
}
|
|
if (xmlStrEqual(child->name, XINCLUDE_FALLBACK)) {
|
|
nb_fallback++;
|
|
}
|
|
}
|
|
child = child->next;
|
|
}
|
|
if (nb_fallback > 1) {
|
|
xmlXIncludeErr(ctxt, node, XML_XINCLUDE_FALLBACKS_IN_INCLUDE,
|
|
"%s has multiple fallback children\n",
|
|
XINCLUDE_NODE);
|
|
return(0);
|
|
}
|
|
return(1);
|
|
}
|
|
if (xmlStrEqual(node->name, XINCLUDE_FALLBACK)) {
|
|
if ((node->parent == NULL) ||
|
|
(node->parent->type != XML_ELEMENT_NODE) ||
|
|
(node->parent->ns == NULL) ||
|
|
((!xmlStrEqual(node->parent->ns->href, XINCLUDE_NS)) &&
|
|
(!xmlStrEqual(node->parent->ns->href, XINCLUDE_OLD_NS))) ||
|
|
(!xmlStrEqual(node->parent->name, XINCLUDE_NODE))) {
|
|
xmlXIncludeErr(ctxt, node,
|
|
XML_XINCLUDE_FALLBACK_NOT_IN_INCLUDE,
|
|
"%s is not the child of an 'include'\n",
|
|
XINCLUDE_FALLBACK);
|
|
}
|
|
}
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeDoProcess:
|
|
* @ctxt: the XInclude processing context
|
|
* @tree: the top of the tree to process
|
|
*
|
|
* Implement the XInclude substitution on the XML document @doc
|
|
*
|
|
* Returns 0 if no substitution were done, -1 if some processing failed
|
|
* or the number of substitutions done.
|
|
*/
|
|
static int
|
|
xmlXIncludeDoProcess(xmlXIncludeCtxtPtr ctxt, xmlNodePtr tree) {
|
|
xmlXIncludeRefPtr ref;
|
|
xmlNodePtr cur;
|
|
int ret = 0;
|
|
int i, start;
|
|
|
|
/*
|
|
* First phase: lookup the elements in the document
|
|
*/
|
|
start = ctxt->incNr;
|
|
cur = tree;
|
|
do {
|
|
/* TODO: need to work on entities -> stack */
|
|
if (xmlXIncludeTestNode(ctxt, cur) == 1) {
|
|
ref = xmlXIncludeExpandNode(ctxt, cur);
|
|
/*
|
|
* Mark direct includes.
|
|
*/
|
|
if (ref != NULL)
|
|
ref->replace = 1;
|
|
} else if ((cur->children != NULL) &&
|
|
((cur->type == XML_DOCUMENT_NODE) ||
|
|
(cur->type == XML_ELEMENT_NODE))) {
|
|
cur = cur->children;
|
|
continue;
|
|
}
|
|
do {
|
|
if (cur == tree)
|
|
break;
|
|
if (cur->next != NULL) {
|
|
cur = cur->next;
|
|
break;
|
|
}
|
|
cur = cur->parent;
|
|
} while (cur != NULL);
|
|
} while ((cur != NULL) && (cur != tree));
|
|
|
|
/*
|
|
* Second phase: extend the original document infoset.
|
|
*/
|
|
for (i = start; i < ctxt->incNr; i++) {
|
|
if (ctxt->incTab[i]->replace != 0) {
|
|
xmlXIncludeIncludeNode(ctxt, ctxt->incTab[i]);
|
|
ctxt->incTab[i]->replace = 0;
|
|
} else {
|
|
/*
|
|
* Ignore includes which were added indirectly, for example
|
|
* inside xi:fallback elements.
|
|
*/
|
|
if (ctxt->incTab[i]->inc != NULL) {
|
|
xmlFreeNodeList(ctxt->incTab[i]->inc);
|
|
ctxt->incTab[i]->inc = NULL;
|
|
}
|
|
}
|
|
ret++;
|
|
}
|
|
|
|
if (ctxt->isStream) {
|
|
/*
|
|
* incTab references nodes which will eventually be deleted in
|
|
* streaming mode. The table is only required for XPointer
|
|
* expressions which aren't allowed in streaming mode.
|
|
*/
|
|
for (i = 0;i < ctxt->incNr;i++) {
|
|
xmlXIncludeFreeRef(ctxt->incTab[i]);
|
|
}
|
|
ctxt->incNr = 0;
|
|
}
|
|
|
|
return(ret);
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeDoProcessRoot:
|
|
* @ctxt: the XInclude processing context
|
|
* @tree: the top of the tree to process
|
|
*
|
|
* Implement the XInclude substitution on the XML document @doc
|
|
*
|
|
* Returns 0 if no substitution were done, -1 if some processing failed
|
|
* or the number of substitutions done.
|
|
*/
|
|
static int
|
|
xmlXIncludeDoProcessRoot(xmlXIncludeCtxtPtr ctxt, xmlNodePtr tree) {
|
|
if ((tree == NULL) || (tree->type == XML_NAMESPACE_DECL))
|
|
return(-1);
|
|
if (ctxt == NULL)
|
|
return(-1);
|
|
|
|
return(xmlXIncludeDoProcess(ctxt, tree));
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeGetLastError:
|
|
* @ctxt: an XInclude processing context
|
|
*
|
|
* Available since 2.13.0.
|
|
*
|
|
* Returns the last error code.
|
|
*/
|
|
int
|
|
xmlXIncludeGetLastError(xmlXIncludeCtxtPtr ctxt) {
|
|
if (ctxt == NULL)
|
|
return(XML_ERR_ARGUMENT);
|
|
return(ctxt->errNo);
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeSetErrorHandler:
|
|
* @ctxt: an XInclude processing context
|
|
* @handler: error handler
|
|
* @data: user data which will be passed to the handler
|
|
*
|
|
* Register a callback function that will be called on errors and
|
|
* warnings. If handler is NULL, the error handler will be deactivated.
|
|
*
|
|
* Available since 2.13.0.
|
|
*/
|
|
void
|
|
xmlXIncludeSetErrorHandler(xmlXIncludeCtxtPtr ctxt,
|
|
xmlStructuredErrorFunc handler, void *data) {
|
|
if (ctxt == NULL)
|
|
return;
|
|
ctxt->errorHandler = handler;
|
|
ctxt->errorCtxt = data;
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeSetResourceLoader:
|
|
* @ctxt: an XInclude processing context
|
|
* @loader: resource loader
|
|
* @data: user data which will be passed to the loader
|
|
*
|
|
* Register a callback function that will be called to load included
|
|
* documents.
|
|
*
|
|
* Available since 2.14.0.
|
|
*/
|
|
void
|
|
xmlXIncludeSetResourceLoader(xmlXIncludeCtxtPtr ctxt,
|
|
xmlResourceLoader loader, void *data) {
|
|
if (ctxt == NULL)
|
|
return;
|
|
ctxt->resourceLoader = loader;
|
|
ctxt->resourceCtxt = data;
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeSetFlags:
|
|
* @ctxt: an XInclude processing context
|
|
* @flags: a set of xmlParserOption used for parsing XML includes
|
|
*
|
|
* Set the flags used for further processing of XML resources.
|
|
*
|
|
* Returns 0 in case of success and -1 in case of error.
|
|
*/
|
|
int
|
|
xmlXIncludeSetFlags(xmlXIncludeCtxtPtr ctxt, int flags) {
|
|
if (ctxt == NULL)
|
|
return(-1);
|
|
ctxt->parseFlags = flags;
|
|
return(0);
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeSetStreamingMode:
|
|
* @ctxt: an XInclude processing context
|
|
* @mode: whether streaming mode should be enabled
|
|
*
|
|
* In streaming mode, XPointer expressions aren't allowed.
|
|
*
|
|
* Returns 0 in case of success and -1 in case of error.
|
|
*/
|
|
int
|
|
xmlXIncludeSetStreamingMode(xmlXIncludeCtxtPtr ctxt, int mode) {
|
|
if (ctxt == NULL)
|
|
return(-1);
|
|
ctxt->isStream = !!mode;
|
|
return(0);
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeProcessTreeFlagsData:
|
|
* @tree: an XML node
|
|
* @flags: a set of xmlParserOption used for parsing XML includes
|
|
* @data: application data that will be passed to the parser context
|
|
* in the _private field of the parser context(s)
|
|
*
|
|
* Implement the XInclude substitution on the XML node @tree
|
|
*
|
|
* Returns 0 if no substitution were done, -1 if some processing failed
|
|
* or the number of substitutions done.
|
|
*/
|
|
|
|
int
|
|
xmlXIncludeProcessTreeFlagsData(xmlNodePtr tree, int flags, void *data) {
|
|
xmlXIncludeCtxtPtr ctxt;
|
|
int ret = 0;
|
|
|
|
if ((tree == NULL) || (tree->type == XML_NAMESPACE_DECL) ||
|
|
(tree->doc == NULL))
|
|
return(-1);
|
|
|
|
ctxt = xmlXIncludeNewContext(tree->doc);
|
|
if (ctxt == NULL)
|
|
return(-1);
|
|
ctxt->_private = data;
|
|
xmlXIncludeSetFlags(ctxt, flags);
|
|
ret = xmlXIncludeDoProcessRoot(ctxt, tree);
|
|
if ((ret >= 0) && (ctxt->nbErrors > 0))
|
|
ret = -1;
|
|
|
|
xmlXIncludeFreeContext(ctxt);
|
|
return(ret);
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeProcessFlagsData:
|
|
* @doc: an XML document
|
|
* @flags: a set of xmlParserOption used for parsing XML includes
|
|
* @data: application data that will be passed to the parser context
|
|
* in the _private field of the parser context(s)
|
|
*
|
|
* Implement the XInclude substitution on the XML document @doc
|
|
*
|
|
* Returns 0 if no substitution were done, -1 if some processing failed
|
|
* or the number of substitutions done.
|
|
*/
|
|
int
|
|
xmlXIncludeProcessFlagsData(xmlDocPtr doc, int flags, void *data) {
|
|
xmlNodePtr tree;
|
|
|
|
if (doc == NULL)
|
|
return(-1);
|
|
tree = xmlDocGetRootElement(doc);
|
|
if (tree == NULL)
|
|
return(-1);
|
|
return(xmlXIncludeProcessTreeFlagsData(tree, flags, data));
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeProcessFlags:
|
|
* @doc: an XML document
|
|
* @flags: a set of xmlParserOption used for parsing XML includes
|
|
*
|
|
* Implement the XInclude substitution on the XML document @doc
|
|
*
|
|
* Returns 0 if no substitution were done, -1 if some processing failed
|
|
* or the number of substitutions done.
|
|
*/
|
|
int
|
|
xmlXIncludeProcessFlags(xmlDocPtr doc, int flags) {
|
|
return xmlXIncludeProcessFlagsData(doc, flags, NULL);
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeProcess:
|
|
* @doc: an XML document
|
|
*
|
|
* Implement the XInclude substitution on the XML document @doc
|
|
*
|
|
* Returns 0 if no substitution were done, -1 if some processing failed
|
|
* or the number of substitutions done.
|
|
*/
|
|
int
|
|
xmlXIncludeProcess(xmlDocPtr doc) {
|
|
return(xmlXIncludeProcessFlags(doc, 0));
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeProcessTreeFlags:
|
|
* @tree: a node in an XML document
|
|
* @flags: a set of xmlParserOption used for parsing XML includes
|
|
*
|
|
* Implement the XInclude substitution for the given subtree
|
|
*
|
|
* Returns 0 if no substitution were done, -1 if some processing failed
|
|
* or the number of substitutions done.
|
|
*/
|
|
int
|
|
xmlXIncludeProcessTreeFlags(xmlNodePtr tree, int flags) {
|
|
xmlXIncludeCtxtPtr ctxt;
|
|
int ret = 0;
|
|
|
|
if ((tree == NULL) || (tree->type == XML_NAMESPACE_DECL) ||
|
|
(tree->doc == NULL))
|
|
return(-1);
|
|
ctxt = xmlXIncludeNewContext(tree->doc);
|
|
if (ctxt == NULL)
|
|
return(-1);
|
|
xmlXIncludeSetFlags(ctxt, flags);
|
|
ret = xmlXIncludeDoProcessRoot(ctxt, tree);
|
|
if ((ret >= 0) && (ctxt->nbErrors > 0))
|
|
ret = -1;
|
|
|
|
xmlXIncludeFreeContext(ctxt);
|
|
return(ret);
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeProcessTree:
|
|
* @tree: a node in an XML document
|
|
*
|
|
* Implement the XInclude substitution for the given subtree
|
|
*
|
|
* Returns 0 if no substitution were done, -1 if some processing failed
|
|
* or the number of substitutions done.
|
|
*/
|
|
int
|
|
xmlXIncludeProcessTree(xmlNodePtr tree) {
|
|
return(xmlXIncludeProcessTreeFlags(tree, 0));
|
|
}
|
|
|
|
/**
|
|
* xmlXIncludeProcessNode:
|
|
* @ctxt: an existing XInclude context
|
|
* @node: a node in an XML document
|
|
*
|
|
* Implement the XInclude substitution for the given subtree reusing
|
|
* the information and data coming from the given context.
|
|
*
|
|
* Returns 0 if no substitution were done, -1 if some processing failed
|
|
* or the number of substitutions done.
|
|
*/
|
|
int
|
|
xmlXIncludeProcessNode(xmlXIncludeCtxtPtr ctxt, xmlNodePtr node) {
|
|
int ret = 0;
|
|
|
|
if ((node == NULL) || (node->type == XML_NAMESPACE_DECL) ||
|
|
(node->doc == NULL) || (ctxt == NULL))
|
|
return(-1);
|
|
ret = xmlXIncludeDoProcessRoot(ctxt, node);
|
|
if ((ret >= 0) && (ctxt->nbErrors > 0))
|
|
ret = -1;
|
|
return(ret);
|
|
}
|
|
|
|
#else /* !LIBXML_XINCLUDE_ENABLED */
|
|
#endif
|