218 lines
5.6 KiB
Go
218 lines
5.6 KiB
Go
package app
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import (
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"encoding/json"
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abci "github.com/tendermint/abci/types"
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crypto "github.com/tendermint/go-crypto"
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tmtypes "github.com/tendermint/tendermint/types"
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cmn "github.com/tendermint/tmlibs/common"
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dbm "github.com/tendermint/tmlibs/db"
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"github.com/tendermint/tmlibs/log"
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bam "github.com/cosmos/cosmos-sdk/baseapp"
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"github.com/cosmos/cosmos-sdk/server"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/wire"
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"github.com/cosmos/cosmos-sdk/x/auth"
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"github.com/cosmos/cosmos-sdk/x/bank"
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"github.com/cosmos/cosmos-sdk/x/ibc"
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"github.com/cosmos/cosmos-sdk/x/stake"
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)
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const (
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appName = "GaiaApp"
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)
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// Extended ABCI application
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type GaiaApp struct {
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*bam.BaseApp
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cdc *wire.Codec
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// keys to access the substores
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keyMain *sdk.KVStoreKey
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keyAccount *sdk.KVStoreKey
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keyIBC *sdk.KVStoreKey
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keyStake *sdk.KVStoreKey
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// Manage getting and setting accounts
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accountMapper sdk.AccountMapper
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coinKeeper bank.Keeper
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ibcMapper ibc.Mapper
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stakeKeeper stake.Keeper
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// Handle fees
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feeHandler sdk.FeeHandler
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}
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func NewGaiaApp(logger log.Logger, db dbm.DB) *GaiaApp {
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// create your application object
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var app = &GaiaApp{
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BaseApp: bam.NewBaseApp(appName, logger, db),
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cdc: MakeCodec(),
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keyMain: sdk.NewKVStoreKey("main"),
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keyAccount: sdk.NewKVStoreKey("acc"),
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keyIBC: sdk.NewKVStoreKey("ibc"),
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keyStake: sdk.NewKVStoreKey("stake"),
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}
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// define the accountMapper
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app.accountMapper = auth.NewAccountMapper(
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app.cdc,
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app.keyMain, // target store
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&auth.BaseAccount{}, // prototype
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)
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// add handlers
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app.coinKeeper = bank.NewKeeper(app.accountMapper)
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app.ibcMapper = ibc.NewMapper(app.cdc, app.keyIBC, app.RegisterCodespace(ibc.DefaultCodespace))
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app.stakeKeeper = stake.NewKeeper(app.cdc, app.keyStake, app.coinKeeper, app.RegisterCodespace(stake.DefaultCodespace))
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app.Router().
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AddRoute("bank", bank.NewHandler(app.coinKeeper)).
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AddRoute("ibc", ibc.NewHandler(app.ibcMapper, app.coinKeeper)).
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AddRoute("stake", stake.NewHandler(app.stakeKeeper))
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// Define the feeHandler.
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app.feeHandler = auth.BurnFeeHandler
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// initialize BaseApp
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app.SetTxDecoder(app.txDecoder)
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app.SetInitChainer(app.initChainer)
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app.SetEndBlocker(stake.NewEndBlocker(app.stakeKeeper))
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app.MountStoresIAVL(app.keyMain, app.keyAccount, app.keyIBC, app.keyStake)
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app.SetAnteHandler(auth.NewAnteHandler(app.accountMapper, app.feeHandler))
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err := app.LoadLatestVersion(app.keyMain)
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if err != nil {
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cmn.Exit(err.Error())
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}
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return app
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}
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// custom tx codec
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func MakeCodec() *wire.Codec {
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var cdc = wire.NewCodec()
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// Register Msgs
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cdc.RegisterInterface((*sdk.Msg)(nil), nil)
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ibc.RegisterWire(cdc)
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bank.RegisterWire(cdc)
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stake.RegisterWire(cdc)
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// Register AppAccount
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cdc.RegisterInterface((*sdk.Account)(nil), nil)
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cdc.RegisterConcrete(&auth.BaseAccount{}, "gaia/Account", nil)
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// Register crypto.
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wire.RegisterCrypto(cdc)
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return cdc
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}
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// custom logic for transaction decoding
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func (app *GaiaApp) txDecoder(txBytes []byte) (sdk.Tx, sdk.Error) {
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var tx = sdk.StdTx{}
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if len(txBytes) == 0 {
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return nil, sdk.ErrTxDecode("txBytes are empty")
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}
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// StdTx.Msg is an interface. The concrete types
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// are registered by MakeTxCodec
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err := app.cdc.UnmarshalBinary(txBytes, &tx)
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if err != nil {
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return nil, sdk.ErrTxDecode("").Trace(err.Error())
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}
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return tx, nil
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}
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// custom logic for gaia initialization
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func (app *GaiaApp) initChainer(ctx sdk.Context, req abci.RequestInitChain) abci.ResponseInitChain {
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stateJSON := req.AppStateBytes
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genesisState := new(GenesisState)
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err := json.Unmarshal(stateJSON, genesisState)
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if err != nil {
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panic(err) // TODO https://github.com/cosmos/cosmos-sdk/issues/468
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// return sdk.ErrGenesisParse("").TraceCause(err, "")
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}
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// load the accounts
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for _, gacc := range genesisState.Accounts {
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acc := gacc.ToAccount()
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app.accountMapper.SetAccount(ctx, acc)
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}
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// load the initial stake information
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stake.InitGenesis(ctx, app.stakeKeeper, genesisState.StakeData)
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return abci.ResponseInitChain{}
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}
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//__________________________________________________________
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// State to Unmarshal
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type GenesisState struct {
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Accounts []GenesisAccount `json:"accounts"`
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StakeData stake.GenesisState `json:"stake"`
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}
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// GenesisAccount doesn't need pubkey or sequence
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type GenesisAccount struct {
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Address sdk.Address `json:"address"`
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Coins sdk.Coins `json:"coins"`
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}
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func NewGenesisAccount(acc *auth.BaseAccount) GenesisAccount {
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return GenesisAccount{
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Address: acc.Address,
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Coins: acc.Coins,
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}
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}
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// convert GenesisAccount to GaiaAccount
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func (ga *GenesisAccount) ToAccount() (acc *auth.BaseAccount) {
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return &auth.BaseAccount{
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Address: ga.Address,
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Coins: ga.Coins.Sort(),
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}
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}
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// GaiaGenAppState expects two args: an account address
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// and a coin denomination, and gives lots of coins to that address.
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func GaiaGenAppState(cdc *wire.Codec, pubKey crypto.PubKey) (chainID string, validators []tmtypes.GenesisValidator, appState, message json.RawMessage, err error) {
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var addr sdk.Address
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var secret string
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addr, secret, err = server.GenerateCoinKey()
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if err != nil {
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return
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}
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mm := map[string]string{"secret": secret}
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bz, err := cdc.MarshalJSON(mm)
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message = json.RawMessage(bz)
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chainID = cmn.Fmt("test-chain-%v", cmn.RandStr(6))
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validators = []tmtypes.GenesisValidator{{
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PubKey: pubKey,
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Power: 10,
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}}
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accAuth := auth.NewBaseAccountWithAddress(addr)
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accAuth.Coins = sdk.Coins{{"fermion", 100000}}
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acc := NewGenesisAccount(&accAuth)
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genaccs := []GenesisAccount{acc}
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genesisState := GenesisState{
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Accounts: genaccs,
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StakeData: stake.GetDefaultGenesisState(),
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}
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appState, err = json.MarshalIndent(genesisState, "", "\t")
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return
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}
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