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applied patch from Michael Day doing some refactoring for the catalog

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* xmlIO.c: applied patch from Michael Day doing some refactoring
  for the catalog entity loaders.
Daniel
This commit is contained in:
Daniel Veillard
2006-09-21 08:36:38 +00:00
parent 34c647cfae
commit ad4e2963a3
2 changed files with 87 additions and 113 deletions
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195
xmlIO.c
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@@ -3616,6 +3616,84 @@ static int xmlNoNetExists(const char *URL) {
return xmlCheckFilename(path);
}
#ifdef LIBXML_CATALOG_ENABLED
/**
* xmlResolveResourceFromCatalog:
* @URL: the URL for the entity to load
* @ID: the System ID for the entity to load
* @ctxt: the context in which the entity is called or NULL
*
* Resolves the URL and ID against the appropriate catalog.
* This function is used by xmlDefaultExternalEntityLoader and
* xmlNoNetExternalEntityLoader.
*
* Returns a new allocated URL, or NULL.
*/
xmlChar *
xmlResolveResourceFromCatalog(const char *URL, const char *ID,
xmlParserCtxtPtr ctxt) {
xmlChar *resource = NULL;
xmlCatalogAllow pref;
/*
* If the resource doesn't exists as a file,
* try to load it from the resource pointed in the catalogs
*/
pref = xmlCatalogGetDefaults();
if ((pref != XML_CATA_ALLOW_NONE) && (!xmlNoNetExists(URL))) {
/*
* Do a local lookup
*/
if ((ctxt != NULL) && (ctxt->catalogs != NULL) &&
((pref == XML_CATA_ALLOW_ALL) ||
(pref == XML_CATA_ALLOW_DOCUMENT))) {
resource = xmlCatalogLocalResolve(ctxt->catalogs,
(const xmlChar *)ID,
(const xmlChar *)URL);
}
/*
* Try a global lookup
*/
if ((resource == NULL) &&
((pref == XML_CATA_ALLOW_ALL) ||
(pref == XML_CATA_ALLOW_GLOBAL))) {
resource = xmlCatalogResolve((const xmlChar *)ID,
(const xmlChar *)URL);
}
if ((resource == NULL) && (URL != NULL))
resource = xmlStrdup((const xmlChar *) URL);
/*
* TODO: do an URI lookup on the reference
*/
if ((resource != NULL) && (!xmlNoNetExists((const char *)resource))) {
xmlChar *tmp = NULL;
if ((ctxt != NULL) && (ctxt->catalogs != NULL) &&
((pref == XML_CATA_ALLOW_ALL) ||
(pref == XML_CATA_ALLOW_DOCUMENT))) {
tmp = xmlCatalogLocalResolveURI(ctxt->catalogs, resource);
}
if ((tmp == NULL) &&
((pref == XML_CATA_ALLOW_ALL) ||
(pref == XML_CATA_ALLOW_GLOBAL))) {
tmp = xmlCatalogResolveURI(resource);
}
if (tmp != NULL) {
xmlFree(resource);
resource = tmp;
}
}
}
return resource;
}
#endif
/**
* xmlDefaultExternalEntityLoader:
* @URL: the URL for the entity to load
@@ -3633,15 +3711,10 @@ xmlDefaultExternalEntityLoader(const char *URL, const char *ID,
xmlParserInputPtr ret = NULL;
xmlChar *resource = NULL;
#ifdef LIBXML_CATALOG_ENABLED
xmlCatalogAllow pref;
#endif
#ifdef DEBUG_EXTERNAL_ENTITIES
xmlGenericError(xmlGenericErrorContext,
"xmlDefaultExternalEntityLoader(%s, xxx)\n", URL);
#endif
#ifdef LIBXML_CATALOG_ENABLED
if ((ctxt != NULL) && (ctxt->options & XML_PARSE_NONET)) {
int options = ctxt->options;
@@ -3650,60 +3723,8 @@ xmlDefaultExternalEntityLoader(const char *URL, const char *ID,
ctxt->options = options;
return(ret);
}
/*
* If the resource doesn't exists as a file,
* try to load it from the resource pointed in the catalogs
*/
pref = xmlCatalogGetDefaults();
if ((pref != XML_CATA_ALLOW_NONE) && (!xmlNoNetExists(URL))) {
/*
* Do a local lookup
*/
if ((ctxt != NULL) && (ctxt->catalogs != NULL) &&
((pref == XML_CATA_ALLOW_ALL) ||
(pref == XML_CATA_ALLOW_DOCUMENT))) {
resource = xmlCatalogLocalResolve(ctxt->catalogs,
(const xmlChar *) ID,
(const xmlChar *) URL);
}
/*
* Try a global lookup
*/
if ((resource == NULL) &&
((pref == XML_CATA_ALLOW_ALL) ||
(pref == XML_CATA_ALLOW_GLOBAL))) {
resource = xmlCatalogResolve((const xmlChar *) ID,
(const xmlChar *) URL);
}
if ((resource == NULL) && (URL != NULL))
resource = xmlStrdup((const xmlChar *) URL);
/*
* TODO: do an URI lookup on the reference
*/
if ((resource != NULL)
&& (!xmlNoNetExists((const char *) resource))) {
xmlChar *tmp = NULL;
if ((ctxt != NULL) && (ctxt->catalogs != NULL) &&
((pref == XML_CATA_ALLOW_ALL) ||
(pref == XML_CATA_ALLOW_DOCUMENT))) {
tmp = xmlCatalogLocalResolveURI(ctxt->catalogs, resource);
}
if ((tmp == NULL) &&
((pref == XML_CATA_ALLOW_ALL) ||
(pref == XML_CATA_ALLOW_GLOBAL))) {
tmp = xmlCatalogResolveURI(resource);
}
if (tmp != NULL) {
xmlFree(resource);
resource = tmp;
}
}
}
#ifdef LIBXML_CATALOG_ENABLED
resource = xmlResolveResourceFromCatalog(URL, ID, ctxt);
#endif
if (resource == NULL)
@@ -3802,61 +3823,9 @@ xmlNoNetExternalEntityLoader(const char *URL, const char *ID,
xmlChar *resource = NULL;
#ifdef LIBXML_CATALOG_ENABLED
xmlCatalogAllow pref;
/*
* If the resource doesn't exists as a file,
* try to load it from the resource pointed in the catalogs
*/
pref = xmlCatalogGetDefaults();
if ((pref != XML_CATA_ALLOW_NONE) && (!xmlNoNetExists(URL))) {
/*
* Do a local lookup
*/
if ((ctxt != NULL) && (ctxt->catalogs != NULL) &&
((pref == XML_CATA_ALLOW_ALL) ||
(pref == XML_CATA_ALLOW_DOCUMENT))) {
resource = xmlCatalogLocalResolve(ctxt->catalogs,
(const xmlChar *)ID,
(const xmlChar *)URL);
}
/*
* Try a global lookup
*/
if ((resource == NULL) &&
((pref == XML_CATA_ALLOW_ALL) ||
(pref == XML_CATA_ALLOW_GLOBAL))) {
resource = xmlCatalogResolve((const xmlChar *)ID,
(const xmlChar *)URL);
}
if ((resource == NULL) && (URL != NULL))
resource = xmlStrdup((const xmlChar *) URL);
/*
* TODO: do an URI lookup on the reference
*/
if ((resource != NULL) && (!xmlNoNetExists((const char *)resource))) {
xmlChar *tmp = NULL;
if ((ctxt != NULL) && (ctxt->catalogs != NULL) &&
((pref == XML_CATA_ALLOW_ALL) ||
(pref == XML_CATA_ALLOW_DOCUMENT))) {
tmp = xmlCatalogLocalResolveURI(ctxt->catalogs, resource);
}
if ((tmp == NULL) &&
((pref == XML_CATA_ALLOW_ALL) ||
(pref == XML_CATA_ALLOW_GLOBAL))) {
tmp = xmlCatalogResolveURI(resource);
}
if (tmp != NULL) {
xmlFree(resource);
resource = tmp;
}
}
}
resource = xmlResolveResourceFromCatalog(URL, ID, ctxt);
#endif
if (resource == NULL)
resource = (xmlChar *) URL;