98 lines
2.9 KiB
Go
98 lines
2.9 KiB
Go
package result
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import (
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"encoding/json"
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"errors"
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"github.com/nspcc-dev/neo-go/pkg/core"
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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/transaction"
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"github.com/nspcc-dev/neo-go/pkg/util"
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)
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// TransactionOutputRaw is used as a wrapper to represents
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// a Transaction.
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type TransactionOutputRaw struct {
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*transaction.Transaction
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TransactionMetadata
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}
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// TransactionMetadata is an auxilliary struct for proper TransactionOutputRaw marshaling.
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type TransactionMetadata 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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Blockhash util.Uint256 `json:"blockhash,omitempty"`
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Confirmations int `json:"confirmations,omitempty"`
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Timestamp uint32 `json:"blocktime,omitempty"`
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}
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// NewTransactionOutputRaw returns a new ransactionOutputRaw object.
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func NewTransactionOutputRaw(tx *transaction.Transaction, header *block.Header, chain core.Blockchainer) TransactionOutputRaw {
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// confirmations formula
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confirmations := int(chain.BlockHeight() - header.Base.Index + 1)
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// set index position
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for i, o := range tx.Outputs {
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o.Position = i
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}
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return TransactionOutputRaw{
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Transaction: tx,
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TransactionMetadata: TransactionMetadata{
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SysFee: chain.SystemFee(tx),
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NetFee: chain.NetworkFee(tx),
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Blockhash: header.Hash(),
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Confirmations: confirmations,
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Timestamp: header.Timestamp,
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},
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}
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}
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// MarshalJSON implements json.Marshaler interface.
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func (t TransactionOutputRaw) MarshalJSON() ([]byte, error) {
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output, err := json.Marshal(TransactionMetadata{
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SysFee: t.SysFee,
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NetFee: t.NetFee,
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Blockhash: t.Blockhash,
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Confirmations: t.Confirmations,
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Timestamp: t.Timestamp,
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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 tranactionOutputRaw at the same level in json
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// in order to match C# API, 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 *TransactionOutputRaw) UnmarshalJSON(data []byte) error {
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// As transaction.Transaction and tranactionOutputRaw are at the same level in json,
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// do unmarshalling separately for both structs.
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output := new(TransactionMetadata)
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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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t.Blockhash = output.Blockhash
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t.Confirmations = output.Confirmations
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t.Timestamp = output.Timestamp
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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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