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52 lines
1.5 KiB
Go
52 lines
1.5 KiB
Go
package transaction
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import (
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"errors"
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"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
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"github.com/nspcc-dev/neo-go/pkg/io"
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"github.com/nspcc-dev/neo-go/pkg/util"
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)
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// The maximum number of AllowedContracts or AllowedGroups
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const maxSubitems = 16
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// Signer implements a Transaction signer.
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type Signer struct {
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Account util.Uint160 `json:"account"`
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Scopes WitnessScope `json:"scopes"`
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AllowedContracts []util.Uint160 `json:"allowedcontracts,omitempty"`
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AllowedGroups []*keys.PublicKey `json:"allowedgroups,omitempty"`
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}
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// EncodeBinary implements Serializable interface.
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func (c *Signer) EncodeBinary(bw *io.BinWriter) {
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bw.WriteBytes(c.Account[:])
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bw.WriteB(byte(c.Scopes))
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if c.Scopes&CustomContracts != 0 {
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bw.WriteArray(c.AllowedContracts)
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}
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if c.Scopes&CustomGroups != 0 {
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bw.WriteArray(c.AllowedGroups)
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}
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}
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// DecodeBinary implements Serializable interface.
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func (c *Signer) DecodeBinary(br *io.BinReader) {
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br.ReadBytes(c.Account[:])
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c.Scopes = WitnessScope(br.ReadB())
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if c.Scopes & ^(Global|CalledByEntry|CustomContracts|CustomGroups|FeeOnly) != 0 {
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br.Err = errors.New("unknown witness scope")
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return
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}
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if c.Scopes&Global != 0 && c.Scopes != Global {
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br.Err = errors.New("global scope can not be combined with other scopes")
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return
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}
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if c.Scopes&CustomContracts != 0 {
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br.ReadArray(&c.AllowedContracts, maxSubitems)
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}
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if c.Scopes&CustomGroups != 0 {
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br.ReadArray(&c.AllowedGroups, maxSubitems)
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}
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}
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