selectorvalidator

Documentation

Index

• Variables
• func SelectorValidator(maxAcceptedDepth int) graphsync.OnIncomingRequestHook
• func ValidateMaxRecursionDepth(node ipld.Node, maxAcceptedDepth int) error

Variables

var (
	// ErrInvalidLimit means this type of recursive selector limit is not supported by default
	// -- to prevent DDOS attacks
	ErrInvalidLimit = errors.New("unsupported recursive selector limit")
)

Functions

func SelectorValidator

func SelectorValidator(maxAcceptedDepth int) graphsync.OnIncomingRequestHook

SelectorValidator returns an OnRequestReceivedHook that only validates requests if their selector only has no recursions that are greater than maxAcceptedDepth

func ValidateMaxRecursionDepth

func ValidateMaxRecursionDepth(node ipld.Node, maxAcceptedDepth int) error

ValidateMaxRecursionDepth examines the given selector node and verifies recursive selectors are limited to the given fixed depth