forked from TrueCloudLab/neoneo-go
132 lines
3.5 KiB
Go
132 lines
3.5 KiB
Go
package result
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import (
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"encoding/json"
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"errors"
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"fmt"
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"github.com/nspcc-dev/neo-go/pkg/core/block"
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"github.com/nspcc-dev/neo-go/pkg/core/blockchainer"
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"github.com/nspcc-dev/neo-go/pkg/core/transaction"
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"github.com/nspcc-dev/neo-go/pkg/encoding/address"
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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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type (
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// Tx wrapper used for the representation of
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// transaction on the RPC Server.
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Tx struct {
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*transaction.Transaction
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Fees
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}
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// Fees is an auxilliary struct for proper Tx marshaling.
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Fees struct {
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SysFee util.Fixed8 `json:"sys_fee"`
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NetFee util.Fixed8 `json:"net_fee"`
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}
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// Block wrapper used for the representation of
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// block.Block / block.Base on the RPC Server.
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Block struct {
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Hash util.Uint256 `json:"hash"`
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Size int `json:"size"`
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Version uint32 `json:"version"`
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NextBlockHash *util.Uint256 `json:"nextblockhash,omitempty"`
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PreviousBlockHash util.Uint256 `json:"previousblockhash"`
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MerkleRoot util.Uint256 `json:"merkleroot"`
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Time uint32 `json:"time"`
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Index uint32 `json:"index"`
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Nonce string `json:"nonce"`
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NextConsensus string `json:"nextconsensus"`
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Confirmations uint32 `json:"confirmations"`
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Script transaction.Witness `json:"script"`
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Tx []Tx `json:"tx"`
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}
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)
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// NewBlock creates a new Block wrapper.
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func NewBlock(b *block.Block, chain blockchainer.Blockchainer) Block {
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res := Block{
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Version: b.Version,
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Hash: b.Hash(),
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Size: io.GetVarSize(b),
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PreviousBlockHash: b.PrevHash,
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MerkleRoot: b.MerkleRoot,
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Time: b.Timestamp,
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Index: b.Index,
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Nonce: fmt.Sprintf("%016x", b.ConsensusData),
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NextConsensus: address.Uint160ToString(b.NextConsensus),
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Confirmations: chain.BlockHeight() - b.Index - 1,
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Script: b.Script,
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Tx: make([]Tx, 0, len(b.Transactions)),
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}
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hash := chain.GetHeaderHash(int(b.Index) + 1)
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if !hash.Equals(util.Uint256{}) {
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res.NextBlockHash = &hash
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}
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for i := range b.Transactions {
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res.Tx = append(res.Tx, Tx{
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Transaction: b.Transactions[i],
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Fees: Fees{
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SysFee: chain.SystemFee(b.Transactions[i]),
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NetFee: chain.NetworkFee(b.Transactions[i]),
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},
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})
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}
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return res
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}
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// MarshalJSON implements json.Marshaler interface.
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func (t Tx) MarshalJSON() ([]byte, error) {
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output, err := json.Marshal(&Fees{
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SysFee: t.SysFee,
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NetFee: t.NetFee,
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})
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if err != nil {
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return nil, err
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}
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txBytes, err := json.Marshal(t.Transaction)
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if err != nil {
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return nil, err
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}
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// We have to keep both transaction.Transaction and tx at the same level in json in order to match C# API,
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// so there's no way to marshall Tx correctly with standard json.Marshaller tool.
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if output[len(output)-1] != '}' || txBytes[0] != '{' {
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return nil, errors.New("can't merge internal jsons")
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}
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output[len(output)-1] = ','
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output = append(output, txBytes[1:]...)
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return output, nil
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}
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// UnmarshalJSON implements json.Marshaler interface.
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func (t *Tx) UnmarshalJSON(data []byte) error {
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// As transaction.Transaction and tx are at the same level in json, do unmarshalling
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// separately for both structs.
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output := new(Fees)
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err := json.Unmarshal(data, output)
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if err != nil {
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return err
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}
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t.SysFee = output.SysFee
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t.NetFee = output.NetFee
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transaction := new(transaction.Transaction)
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err = json.Unmarshal(data, transaction)
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if err != nil {
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return err
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}
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t.Transaction = transaction
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return nil
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}
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