validator

Documentation

Index

• Variables
• func GetColumnNames(req tree.NodeFormatter) ([]string, error)
• func IsAllowed(tables []config.TargetTable, haveAccess func(Vec) bool, query string) error
• func ValidateAccess(vectors []Vec, haveAccess func(Vec) bool) error
• func ValidateSchema(vectors []Vec, tables []config.TargetTable) error
• func Walk(collect ICollect, statements ...tree.NodeFormatter) error
• type ICollect
  • func CollectAll(funcs ...ICollect) ICollect
• type TypeCollector
  • func CollectType[T tree.NodeFormatter]() *TypeCollector[T]
  • func (c *TypeCollector[T]) Collect(node tree.NodeFormatter)
  • func (c *TypeCollector[T]) Res() []T
• type Vec
  • func MakeSelectVec(req *tree.Select) (*Vec, error)
  • func MakeVectors(query string) ([]Vec, error)
  • func (v Vec) String() string

Variables

var (
	ErrBadQuery         = errors.New("bad query")
	ErrComplicatedQuery = errors.New("complicated query")
	ErrAccessDenied     = errors.New("access denied")
	ErrUnknownTable     = errors.New("unknown table")
	ErrUnknownColumn    = errors.New("unknown column")
)

Functions

func GetColumnNames

func GetColumnNames(req tree.NodeFormatter) ([]string, error)

GetColumnNames will return all mentioned columns from query. Note: It will have unexpected behavior for queries that have a subquery.

func IsAllowed

func IsAllowed(tables []config.TargetTable, haveAccess func(Vec) bool, query string) error

IsAllowed will tokenize query, validate schema and check access after all.

func ValidateAccess

func ValidateAccess(vectors []Vec, haveAccess func(Vec) bool) error

ValidateAccess check that all vectors is allowed to run.

func ValidateSchema

func ValidateSchema(vectors []Vec, tables []config.TargetTable) error

ValidateSchema will check that request contains only allowed columns.

func Walk

func Walk(collect ICollect, statements ...tree.NodeFormatter) error

Types

type ICollect

type ICollect func(tree.NodeFormatter)

func CollectAll

func CollectAll(funcs ...ICollect) ICollect

type TypeCollector

type TypeCollector[T tree.NodeFormatter] struct {
	// contains filtered or unexported fields
}

func CollectType

func CollectType[T tree.NodeFormatter]() *TypeCollector[T]

func (*TypeCollector[T]) Collect

func (c *TypeCollector[T]) Collect(node tree.NodeFormatter)

func (*TypeCollector[T]) Res

func (c *TypeCollector[T]) Res() []T

type Vec

type Vec struct {
	Op   config.Op
	Tbl  string
	Cols []string
}

func MakeSelectVec

func MakeSelectVec(req *tree.Select) (*Vec, error)

func MakeVectors

func MakeVectors(query string) ([]Vec, error)

MakeVectors create vectors from query.

func (Vec) String

func (v Vec) String() string