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/*
* Copyright (C) 2012 Intel Corporation
*
* Authors: Krzesimir Nowak <krnowak@openismus.com>
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
*/
#include <config.h>
#include <libxml/parser.h>
#include <libxml/xmlschemas.h>
#include "xsd-data.h"
struct _XSDData {
xmlSchemaPtr schema;
xmlSchemaValidCtxtPtr valid_context;
};
XSDData *
xsd_data_new (const gchar *xsd_file)
{
XSDData *xsd_data = g_slice_new0 (XSDData);
gboolean failed = TRUE;
xmlSchemaParserCtxtPtr context = xmlSchemaNewParserCtxt (xsd_file);
if (context == NULL)
/* unable to create a parser context for the schema */
goto out;
xsd_data->schema = xmlSchemaParse (context);
if (xsd_data->schema == NULL)
/* the schema itself is not valid */
goto out;
xsd_data->valid_context = xmlSchemaNewValidCtxt (xsd_data->schema);
if (xsd_data->valid_context == NULL)
/* unable to create a validation context for the schema */
goto out;
failed = FALSE;
out:
if (context != NULL)
xmlSchemaFreeParserCtxt (context);
if (failed) {
xsd_data_free (xsd_data);
xsd_data = NULL;
}
return xsd_data;
}
void
xsd_data_free (XSDData *xsd_data)
{
if (xsd_data == NULL)
return;
g_clear_pointer (&xsd_data->valid_context, xmlSchemaFreeValidCtxt);
g_clear_pointer (&xsd_data->schema, xmlSchemaFree);
g_slice_free (XSDData, xsd_data);
}
gboolean
xsd_data_validate_doc (XSDData *xsd_data,
xmlDoc *doc)
{
static xmlSAXHandler empty_handler = {
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
XML_SAX2_MAGIC,
NULL,
NULL,
NULL,
NULL
};
xmlChar *dump = NULL;
int size = 0;
xmlParserInputBufferPtr buffer = NULL;
gboolean result = FALSE;
if (xsd_data == NULL)
return TRUE;
xmlDocDumpMemory (doc, &dump, &size);
if (dump == NULL)
goto out;
g_debug ("Doc dump:\n%s", dump);
buffer = xmlParserInputBufferCreateMem ((char *) dump,
size,
XML_CHAR_ENCODING_NONE);
if (buffer == NULL)
goto out;
if (!xmlSchemaValidateStream (xsd_data->valid_context,
buffer,
XML_CHAR_ENCODING_NONE,
&empty_handler,
NULL))
result = TRUE;
out:
/* Commented out, because it crashes because of double free. I
* suppose that it is freed by xmlSchemaValidateStream.
*/
/*
if (buffer)
xmlFreeParserInputBuffer (buffer);
*/
if (dump != NULL)
xmlFree (dump);
return result;
}
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