donner::svg::components::ParsedPayloadResourceBudget Class Reference

Bounds dynamic payload retained while parsing one untrusted SVG document. More...

#include "donner/svg/components/ParsedPayloadResourceBudget.h"

Classes
struct	Limits
struct	SecurityStats

Public Types
enum class	Category {   Attribute ,   Stylesheet ,   ProjectedText }

Public Member Functions
	ParsedPayloadResourceBudget (Limits limits, std::shared_ptr< DocumentResourceFamilyBudget > family=nullptr)
	ParsedPayloadResourceBudget (const ParsedPayloadResourceBudget &)=delete
ParsedPayloadResourceBudget &	operator= (const ParsedPayloadResourceBudget &)=delete
	ParsedPayloadResourceBudget (ParsedPayloadResourceBudget &&other) noexcept
ParsedPayloadResourceBudget &	operator= (ParsedPayloadResourceBudget &&)=delete
bool	canReserve (Entity entity, std::size_t bytes, Category category) const
	Return whether replacing one entity/category reservation would fit the local envelope.
bool	reserve (Entity entity, std::size_t bytes, Category category)
	Atomically replace one entity/category reservation.
void	release (Entity entity)
	Release every parsed-payload reservation owned by one entity.
bool	reserve (std::size_t bytes, Category category)
	Add an unowned reservation for callers whose payload has no document entity.
void	recordRejection ()
	Record a rejected representation whose size cannot safely be expressed or retained.
const SecurityStats &	securityStats () const

Static Public Member Functions
static std::optional< std::size_t >	estimateAttributeBytes (std::size_t sourceBytes, std::size_t attributeCount)
	Estimate dynamic representation bytes retained by parsed SVG attributes.
static std::optional< std::size_t >	estimateStylesheetPreflightBytes (std::size_t sourceBytes, std::size_t projectedSourceBytes)
	Conservative pre-parse bound for raw CSS plus all parser-retained representations.

Detailed Description

Bounds dynamic payload retained while parsing one untrusted SVG document.

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Class Documentation

donner::svg::components::ParsedPayloadResourceBudget::Limits

struct donner::svg::components::ParsedPayloadResourceBudget::Limits

Class Members
size_t	maximumRetainedBytes = 64 * 1024 * 1024

donner::svg::components::ParsedPayloadResourceBudget::SecurityStats

struct donner::svg::components::ParsedPayloadResourceBudget::SecurityStats

Class Members
size_t	attributeBytes = 0
size_t	projectedTextBytes = 0
bool	rejected = false
size_t	rejectedReservations = 0
size_t	retainedBytes = 0
size_t	stylesheetBytes = 0

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

• donner/svg/components/ParsedPayloadResourceBudget.h