neoneo-go/cli/smartcontract/permission.go

133 lines
2.8 KiB
Go
Raw Normal View History

package smartcontract
import (
"encoding/hex"
"errors"
"fmt"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/manifest"
"github.com/nspcc-dev/neo-go/pkg/util"
"gopkg.in/yaml.v3"
)
type permission manifest.Permission
const (
permHashKey = "hash"
permGroupKey = "group"
permMethodKey = "methods"
)
func (p permission) MarshalYAML() (any, error) {
m := yaml.Node{Kind: yaml.MappingNode}
switch p.Contract.Type {
case manifest.PermissionWildcard:
case manifest.PermissionHash:
m.Content = append(m.Content,
&yaml.Node{Kind: yaml.ScalarNode, Value: permHashKey},
&yaml.Node{Kind: yaml.ScalarNode, Value: p.Contract.Value.(util.Uint160).StringLE()})
case manifest.PermissionGroup:
bs := p.Contract.Value.(*keys.PublicKey).Bytes()
m.Content = append(m.Content,
&yaml.Node{Kind: yaml.ScalarNode, Value: permGroupKey},
&yaml.Node{Kind: yaml.ScalarNode, Value: hex.EncodeToString(bs)})
default:
return nil, fmt.Errorf("invalid permission type: %d", p.Contract.Type)
}
var val any = "*"
if !p.Methods.IsWildcard() {
val = p.Methods.Value
}
n := &yaml.Node{Kind: yaml.ScalarNode}
err := n.Encode(val)
if err != nil {
return nil, err
}
m.Content = append(m.Content,
&yaml.Node{Kind: yaml.ScalarNode, Value: permMethodKey},
n)
return m, nil
}
func (p *permission) UnmarshalYAML(unmarshal func(any) error) error {
var m map[string]any
if err := unmarshal(&m); err != nil {
return err
}
if err := p.fillType(m); err != nil {
return err
}
return p.fillMethods(m)
}
func (p *permission) fillType(m map[string]any) error {
vh, ok1 := m[permHashKey]
vg, ok2 := m[permGroupKey]
switch {
case ok1 && ok2:
return errors.New("permission must have either 'hash' or 'group' field")
case ok1:
s, ok := vh.(string)
if !ok {
return errors.New("invalid 'hash' type")
}
u, err := util.Uint160DecodeStringLE(s)
if err != nil {
return err
}
p.Contract.Type = manifest.PermissionHash
p.Contract.Value = u
case ok2:
s, ok := vg.(string)
if !ok {
return errors.New("invalid 'hash' type")
}
pub, err := keys.NewPublicKeyFromString(s)
if err != nil {
return err
}
p.Contract.Type = manifest.PermissionGroup
p.Contract.Value = pub
default:
p.Contract.Type = manifest.PermissionWildcard
}
return nil
}
func (p *permission) fillMethods(m map[string]any) error {
methods, ok := m[permMethodKey]
if !ok {
return errors.New("'methods' field is missing from permission")
}
switch mt := methods.(type) {
case string:
if mt == "*" {
p.Methods.Value = nil
return nil
}
case []any:
ms := make([]string, len(mt))
for i := range mt {
ms[i], ok = mt[i].(string)
if !ok {
return errors.New("invalid permission method name")
}
}
p.Methods.Value = ms
return nil
default:
}
return errors.New("'methods' field is invalid")
}