50 lines
1002 B
Go
50 lines
1002 B
Go
|
package limits
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
|
||
|
|
"github.com/ipld/go-ipld-prime"
|
||
|
|
"github.com/ipld/go-ipld-prime/must"
|
||
|
|
)
|
||
|
|
|
||
|
|
const (
|
||
|
|
// MaxInt53 represents the maximum safe integer in JavaScript (2^53 - 1)
|
||
|
|
MaxInt53 = 9007199254740991
|
||
|
|
// MinInt53 represents the minimum safe integer in JavaScript (-2^53 + 1)
|
||
|
|
MinInt53 = -9007199254740991
|
||
|
|
)
|
||
|
|
|
||
|
|
func ValidateIntegerBoundsIPLD(node ipld.Node) error {
|
||
|
|
switch node.Kind() {
|
||
|
|
case ipld.Kind_Int:
|
||
|
|
val := must.Int(node)
|
||
|
|
if val > MaxInt53 || val < MinInt53 {
|
||
|
|
return fmt.Errorf("integer value %d exceeds safe bounds", val)
|
||
|
|
}
|
||
|
|
case ipld.Kind_List:
|
||
|
|
it := node.ListIterator()
|
||
|
|
for !it.Done() {
|
||
|
|
_, v, err := it.Next()
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
if err := ValidateIntegerBoundsIPLD(v); err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
}
|
||
|
|
case ipld.Kind_Map:
|
||
|
|
it := node.MapIterator()
|
||
|
|
for !it.Done() {
|
||
|
|
_, v, err := it.Next()
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
if err := ValidateIntegerBoundsIPLD(v); err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return nil
|
||
|
|
}
|