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Ensure that SetExtraField cannot be used to overwrite another field

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lhchavez 2021-07-28 13:22:26 +00:00
parent 83d34e6888
commit 4e1e529bef
1 changed files with 4 additions and 0 deletions
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4
jsonrpc2.go
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@ -179,6 +179,10 @@ func (r *Request) SetMeta(v interface{}) error {
// JSON representation of the request, as a way to add arbitrary extensions to
// JSON RPC 2.0. If JSON marshaling fails, it returns an error.
func (r *Request) SetExtraField(name string, v interface{}) error {
switch name {
case "id", "jsonrpc", "meta", "method", "params":
return fmt.Errorf("invalid extra field %q", name)
}
r.ExtraFields = append(r.ExtraFields, RequestField{
Name: name,
Value: v,