cerc-io/plugeth-utils
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Appending unmarshalJSON methods to avoid panic if mal-formed arguments are passed.

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This commit is contained in:
philip-morlier 2022-01-27 11:12:56 -08:00
parent 44c7e0e589
commit ff5d2e8030
1 changed files with 16 additions and 13 deletions
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13
core/types.go
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@ -1,10 +1,10 @@
package core
import (
"strings"
"bytes"
"fmt"
"encoding/hex"
"fmt"
"strings"
)
type Hash [32]byte
@ -15,6 +15,9 @@ func (h Hash) MarshalJSON() ([]byte, error) {
func (h *Hash) UnmarshalJSON(data []byte) error {
d := bytes.TrimPrefix(bytes.Trim(data, `"`), []byte("0x"))
if len(d) > 64 {
return fmt.Errorf("argument of invalid length")
}
_, err := hex.Decode(h[(64-len(d))/2:], d)
return err
}
@ -48,6 +51,9 @@ func (h Address) MarshalJSON() ([]byte, error) {
func (h *Address) UnmarshalJSON(data []byte) error {
d := bytes.TrimPrefix(bytes.Trim(data, `"`), []byte("0x"))
if len(d) > 40 {
return fmt.Errorf("argument of invalid length")
}
_, err := hex.Decode(h[(40-len(d))/2:], d)
return err
}
@ -56,7 +62,6 @@ func (h Address) String() string {
return fmt.Sprintf("%#x", h[:])
}
func HexToAddress(data string) Address {
h := Address{}
b, _ := hex.DecodeString(strings.TrimPrefix(strings.Trim(data, `"`), "0x"))
@ -70,7 +75,6 @@ func BytesToAddress(b []byte) Address {
return h
}
type ChainEvent struct {
Block []byte // RLP Encoded block
Hash Hash
@ -96,7 +100,6 @@ type API struct {
Public bool
}
func CopyBytes(a []byte) []byte {
b := make([]byte, len(a))
copy(b[:], a[:])