125954ace8
During transaction processing we retrieve the type of msg and based on that we get the applicable handler from the router. This means that the router should only receive messages that it knows how to handle. Instead of using Get interfaces, we should cast to the actual type of transaction and then access the transaction details that way. It's okay to panic here, because if the DummyHandler receives a message that it cannot cast to the expected type it means something is wrong with the router. Instead of retrieving an arbitrary key by chance we should panic.
77 lines
1.4 KiB
Go
77 lines
1.4 KiB
Go
package main
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import (
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"bytes"
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sdk "github.com/cosmos/cosmos-sdk/types"
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crypto "github.com/tendermint/go-crypto"
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)
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// An sdk.Tx which is its own sdk.Msg.
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type dummyTx struct {
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key []byte
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value []byte
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bytes []byte
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}
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func (tx dummyTx) Get(key interface{}) (value interface{}) {
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switch k := key.(type) {
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case string:
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switch k {
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case "key":
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return tx.key
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case "value":
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return tx.value
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}
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}
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return nil
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}
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func (tx dummyTx) Type() string {
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return "dummy"
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}
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func (tx dummyTx) GetMsg() sdk.Msg {
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return tx
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}
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func (tx dummyTx) GetSignBytes() []byte {
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return tx.bytes
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}
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// Should the app be calling this? Or only handlers?
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func (tx dummyTx) ValidateBasic() sdk.Error {
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return nil
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}
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func (tx dummyTx) GetSigners() []crypto.Address {
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return nil
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}
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func (tx dummyTx) GetSignatures() []sdk.StdSignature {
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return nil
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}
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func (tx dummyTx) GetFeePayer() crypto.Address {
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return nil
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}
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// takes raw transaction bytes and decodes them into an sdk.Tx. An sdk.Tx has
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// all the signatures and can be used to authenticate.
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func decodeTx(txBytes []byte) (sdk.Tx, sdk.Error) {
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var tx sdk.Tx
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split := bytes.Split(txBytes, []byte("="))
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if len(split) == 1 {
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k := split[0]
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tx = dummyTx{k, k, txBytes}
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} else if len(split) == 2 {
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k, v := split[0], split[1]
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tx = dummyTx{k, v, txBytes}
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} else {
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return nil, sdk.ErrTxParse("too many =")
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}
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return tx, nil
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}
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