/usr/include/xercesc/util/SecurityManager.hpp is in libxerces-c2-dev 2.8.0+deb1-2build3.
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* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* $Id: SecurityManager.hpp 568078 2007-08-21 11:43:25Z amassari $
*/
#ifndef SECURITYMANAGER_HPP
#define SECURITYMANAGER_HPP
#include <xercesc/util/XercesDefs.hpp>
XERCES_CPP_NAMESPACE_BEGIN
/**
* Allow application to force the parser to behave in a security-conscious
* way.
*
* <p> There are cases in which an XML- or XmL-schema-
* conformant processor can be presented with documents the
* processing of which can involve the consumption of
* prohibitive amounts of system resources. Applications can
* attach instances of this class to parsers that they've
* created, via the
* http://apache.org/xml/properties/security-manager property.
* </p>
*
* <p> Defaults will be provided for all known security holes.
* Setter methods will be provided on this class to ensure that
* an application can customize each limit as it chooses.
* Components that are vulnerable to any given hole need to be
* written to act appropriately when an instance of this class
* has been set on the calling parser.
* </p>
*/
class XMLUTIL_EXPORT SecurityManager
{
public:
enum { ENTITY_EXPANSION_LIMIT = 50000};
/** @name default Constructors */
//@{
/** Default constructor */
SecurityManager()
: fEntityExpansionLimit(ENTITY_EXPANSION_LIMIT)
{
}
/** Destructor */
virtual ~SecurityManager(){};
//@}
/** @name The Security Manager */
//@{
/**
* An application should call this method when it wishes to specify a particular
* limit to the number of entity expansions the parser will permit in a
* particular document. The default behaviour should allow the parser
* to validate nearly all XML non-malicious XML documents; if an
* application knows that it is operating in a domain where entities are
* uncommon, for instance, it may wish to provide a limit lower than the
* parser's default.
*
* @param newLimit the new entity expansion limit
*
*/
virtual void setEntityExpansionLimit(unsigned int newLimit)
{
fEntityExpansionLimit = newLimit;
}
/**
* Permits the application or a parser component to query the current
* limit for entity expansions.
*
* @return the current setting of the entity expansion limit
*
*/
virtual unsigned int getEntityExpansionLimit() const
{
return fEntityExpansionLimit;
}
//@}
protected:
unsigned int fEntityExpansionLimit;
private:
/* Unimplemented Constructors and operators */
/* Copy constructor */
SecurityManager(const SecurityManager&);
/** Assignment operator */
SecurityManager& operator=(const SecurityManager&);
};
XERCES_CPP_NAMESPACE_END
#endif
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