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valid: Implement xmlCtxtValidateDocument

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This allows to use the error handler or resource loader of a parser
context.
This commit is contained in:
Nick Wellnhofer 2024-11-17 13:50:15 +01:00
parent 1e1731a43d
commit 5a51f08517
2 changed files with 94 additions and 28 deletions
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3
include/libxml/parser.h
View File

@ -1188,6 +1188,9 @@ XMLPUBFUN xmlDtdPtr
xmlParserInputPtr input,
const xmlChar *ExternalID,
const xmlChar *SystemID);
XMLPUBFUN int
xmlCtxtValidateDocument (xmlParserCtxtPtr ctxt,
xmlDocPtr doc);
XMLPUBFUN int
xmlCtxtValidateDtd (xmlParserCtxtPtr ctxt,
xmlDocPtr doc,

119
valid.c
View File

@ -6660,56 +6660,75 @@ xmlValidateDtdFinal(xmlValidCtxtPtr ctxt, xmlDocPtr doc) {
}
/**
* xmlValidateDocument:
* @ctxt: the validation context
* @doc: a document instance
* xmlValidateDocumentInternal:
* @ctxt: parser context (optional)
* @vctxt: validation context (optional)
* @doc: document
*
* Try to validate the document instance
* Validate a document.
*
* basically it does the all the checks described by the XML Rec
* i.e. validates the internal and external subset (if present)
* and validate the document tree.
*
* returns 1 if valid or 0 otherwise
* Returns 1 if valid or 0 otherwise
*/
int
xmlValidateDocument(xmlValidCtxtPtr ctxt, xmlDocPtr doc) {
static int
xmlValidateDocumentInternal(xmlParserCtxtPtr ctxt, xmlValidCtxtPtr vctxt,
xmlDocPtr doc) {
int ret;
xmlNodePtr root;
if (doc == NULL)
return(0);
if ((doc->intSubset == NULL) && (doc->extSubset == NULL)) {
xmlErrValid(ctxt, XML_DTD_NO_DTD,
xmlErrValid(vctxt, XML_DTD_NO_DTD,
"no DTD found!\n", NULL);
return(0);
}
if ((doc->intSubset != NULL) && ((doc->intSubset->SystemID != NULL) ||
(doc->intSubset->ExternalID != NULL)) && (doc->extSubset == NULL)) {
xmlChar *sysID;
xmlChar *sysID = NULL;
if (doc->intSubset->SystemID != NULL) {
sysID = xmlBuildURI(doc->intSubset->SystemID,
doc->URL);
if (sysID == NULL) {
xmlErrValid(ctxt, XML_DTD_LOAD_ERROR,
int res;
res = xmlBuildURISafe(doc->intSubset->SystemID, doc->URL, &sysID);
if (res < 0) {
xmlVErrMemory(vctxt);
return 0;
} else if (res != 0) {
xmlErrValid(vctxt, XML_DTD_LOAD_ERROR,
"Could not build URI for external subset \"%s\"\n",
(const char *) doc->intSubset->SystemID);
return 0;
}
} else
sysID = NULL;
doc->extSubset = xmlParseDTD(doc->intSubset->ExternalID,
(const xmlChar *)sysID);
}
if (ctxt != NULL) {
xmlParserInputPtr input;
input = xmlLoadResource(ctxt, (const char *) sysID,
(const char *) doc->intSubset->ExternalID,
XML_RESOURCE_DTD);
if (input == NULL) {
xmlFree(sysID);
return 0;
}
doc->extSubset = xmlCtxtParseDtd(ctxt, input,
doc->intSubset->ExternalID,
sysID);
} else {
doc->extSubset = xmlParseDTD(doc->intSubset->ExternalID, sysID);
}
if (sysID != NULL)
xmlFree(sysID);
if (doc->extSubset == NULL) {
if (doc->intSubset->SystemID != NULL) {
xmlErrValid(ctxt, XML_DTD_LOAD_ERROR,
xmlErrValid(vctxt, XML_DTD_LOAD_ERROR,
"Could not load the external subset \"%s\"\n",
(const char *) doc->intSubset->SystemID);
} else {
xmlErrValid(ctxt, XML_DTD_LOAD_ERROR,
xmlErrValid(vctxt, XML_DTD_LOAD_ERROR,
"Could not load the external subset \"%s\"\n",
(const char *) doc->intSubset->ExternalID);
}
@ -6725,15 +6744,59 @@ xmlValidateDocument(xmlValidCtxtPtr ctxt, xmlDocPtr doc) {
xmlFreeRefTable(doc->refs);
doc->refs = NULL;
}
ret = xmlValidateDtdFinal(ctxt, doc);
if (!xmlValidateRoot(ctxt, doc)) return(0);
ret = xmlValidateDtdFinal(vctxt, doc);
if (!xmlValidateRoot(vctxt, doc)) return(0);
root = xmlDocGetRootElement(doc);
ret &= xmlValidateElement(ctxt, doc, root);
ret &= xmlValidateDocumentFinal(ctxt, doc);
ret &= xmlValidateElement(vctxt, doc, root);
ret &= xmlValidateDocumentFinal(vctxt, doc);
return(ret);
}
/**
* xmlValidateDocument:
* @ctxt: the validation context
* @doc: a document instance
*
* DEPRECATED: This function can't report malloc or other failures.
* Use xmlCtxtValidateDocument.
*
* Try to validate the document instance
*
* basically it does the all the checks described by the XML Rec
* i.e. validates the internal and external subset (if present)
* and validate the document tree.
*
* returns 1 if valid or 0 otherwise
*/
int
xmlValidateDocument(xmlValidCtxtPtr vctxt, xmlDocPtr doc) {
return(xmlValidateDocumentInternal(NULL, vctxt, doc));
}
/**
* xmlCtxtValidateDocument:
* @ctxt: a parser context
* @doc: a document instance
*
* Validate a document.
*
* Like xmlValidateDocument but uses the parser context's error handler.
*
* Option XML_PARSE_DTDLOAD should be enabled in the parser context
* to make external entities work.
*
* Availabe since 2.14.0.
*
* Returns 1 if valid or 0 otherwise.
*/
int
xmlCtxtValidateDocument(xmlParserCtxtPtr ctxt, xmlDocPtr doc) {
if (ctxt == NULL)
return(0);
return(xmlValidateDocumentInternal(ctxt, &ctxt->vctxt, doc));
}
/************************************************************************
* *
* Routines for dynamic validation editing *