forked from TrueCloudLab/neoneo-go
fa09b9af7b
Follow missed change from neo-project/neo#1816 . `None` may be used for any signer. Currently it is used for sender to only pay fees, or to sign tx attributes.
52 lines
1.4 KiB
Go
52 lines
1.4 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|None) != 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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