SecurityManager Class Reference

Allow application to force the parser to behave in a security-conscious way. More...

#include <xercesc/util/SecurityManager.hpp>

Public Types
enum	{ ENTITY_EXPANSION_LIMIT = 50000 }

Public Member Functions
default Constructors
	SecurityManager ()
	Default constructor.
virtual	~SecurityManager ()
	Destructor.

The Security Manager
XMLSize_t	fEntityExpansionLimit
virtual void	setEntityExpansionLimit (XMLSize_t newLimit)
	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.
virtual XMLSize_t	getEntityExpansionLimit () const
	Permits the application or a parser component to query the current limit for entity expansions.

Detailed Description

Allow application to force the parser to behave in a security-conscious way.

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.

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.

Member Enumeration Documentation

anonymous enum

anonymous enum

Enumerator
ENTITY_EXPANSION_LIMIT

Constructor & Destructor Documentation

SecurityManager()

SecurityManager::SecurityManager

(

)

Default constructor.

~SecurityManager()

virtual SecurityManager::~SecurityManager ( )

virtual

Destructor.

Member Function Documentation

getEntityExpansionLimit()

virtual XMLSize_t SecurityManager::getEntityExpansionLimit ( ) const

virtual

Permits the application or a parser component to query the current limit for entity expansions.

Returns

the current setting of the entity expansion limit

setEntityExpansionLimit()

virtual void SecurityManager::setEntityExpansionLimit ( XMLSize_t newLimit )

virtual

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.

Parameters

newLimit

the new entity expansion limit

Member Data Documentation

fEntityExpansionLimit

XMLSize_t SecurityManager::fEntityExpansionLimit

protected

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The documentation for this class was generated from the following file:

• SecurityManager.hpp