0g-chain/internal/app/app.go

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package app
import (
"encoding/json"
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"io"
"os"
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abci "github.com/tendermint/tendermint/abci/types"
cmn "github.com/tendermint/tendermint/libs/common"
dbm "github.com/tendermint/tendermint/libs/db"
"github.com/tendermint/tendermint/libs/log"
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tmtypes "github.com/tendermint/tendermint/types"
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bam "github.com/cosmos/cosmos-sdk/baseapp"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/wire"
"github.com/cosmos/cosmos-sdk/x/auth"
"github.com/cosmos/cosmos-sdk/x/bank"
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//"github.com/cosmos/cosmos-sdk/x/gov"
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//"github.com/cosmos/cosmos-sdk/x/ibc"
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"github.com/cosmos/cosmos-sdk/x/slashing"
"github.com/cosmos/cosmos-sdk/x/stake"
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"github.com/kava-labs/kava/internal/x/paychan"
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)
const (
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appName = "KavaApp"
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)
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// Set default directories for data
var (
DefaultCLIHome = os.ExpandEnv("$HOME/.kvcli")
DefaultNodeHome = os.ExpandEnv("$HOME/.kvd")
)
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type KavaApp struct {
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*bam.BaseApp
cdc *wire.Codec
// keys to access the substores
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keyMain *sdk.KVStoreKey
keyAccount *sdk.KVStoreKey
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//keyIBC *sdk.KVStoreKey
keyStake *sdk.KVStoreKey
keySlashing *sdk.KVStoreKey
//keyGov *sdk.KVStoreKey
keyFeeCollection *sdk.KVStoreKey
keyPaychan *sdk.KVStoreKey
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// keepers
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accountMapper auth.AccountMapper
feeCollectionKeeper auth.FeeCollectionKeeper
coinKeeper bank.Keeper
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paychanKeeper paychan.Keeper
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//ibcMapper ibc.Mapper
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stakeKeeper stake.Keeper
slashingKeeper slashing.Keeper
//govKeeper gov.Keeper
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}
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// Creates a new KavaApp.
func NewKavaApp(logger log.Logger, db dbm.DB, traceStore io.Writer, baseAppOptions ...func(*bam.BaseApp)) *KavaApp {
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// Create a codec for use across the whole app
cdc := CreateKavaAppCodec()
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// Create a new base app
bApp := bam.NewBaseApp(appName, cdc, logger, db, baseAppOptions...)
bApp.SetCommitMultiStoreTracer(traceStore)
// Create the kava app, extending baseApp
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var app = &KavaApp{
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BaseApp: bApp,
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cdc: cdc,
keyMain: sdk.NewKVStoreKey("main"),
keyAccount: sdk.NewKVStoreKey("acc"),
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keyPaychan: sdk.NewKVStoreKey("paychan"),
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//keyIBC: sdk.NewKVStoreKey("ibc"),
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keyStake: sdk.NewKVStoreKey("stake"),
keySlashing: sdk.NewKVStoreKey("slashing"),
//keyGov: sdk.NewKVStoreKey("gov"),
keyFeeCollection: sdk.NewKVStoreKey("fee"),
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}
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// Define the accountMapper and base account
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app.accountMapper = auth.NewAccountMapper(
cdc,
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app.keyAccount,
auth.ProtoBaseAccount,
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)
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// Create the keepers
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app.coinKeeper = bank.NewKeeper(app.accountMapper)
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app.paychanKeeper = paychan.NewKeeper(app.cdc, app.keyPaychan, app.coinKeeper)
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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))
app.slashingKeeper = slashing.NewKeeper(app.cdc, app.keySlashing, app.stakeKeeper, app.RegisterCodespace(slashing.DefaultCodespace))
//app.govKeeper = gov.NewKeeper(app.cdc, app.keyGov, app.coinKeeper, app.stakeKeeper, app.RegisterCodespace(gov.DefaultCodespace))
app.feeCollectionKeeper = auth.NewFeeCollectionKeeper(app.cdc, app.keyFeeCollection)
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// Register the message handlers
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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)).
AddRoute("slashing", slashing.NewHandler(app.slashingKeeper)).
AddRoute("paychan", paychan.NewHandler(app.paychanKeeper))
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//AddRoute("gov", gov.NewHandler(app.govKeeper))
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// Set func to initialze the chain from appState in genesis file
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app.SetInitChainer(app.initChainer)
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// Set functions that run before and after txs / blocks
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app.SetBeginBlocker(app.BeginBlocker)
app.SetEndBlocker(app.EndBlocker)
app.SetAnteHandler(auth.NewAnteHandler(app.accountMapper, app.feeCollectionKeeper))
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// Mount stores
app.MountStoresIAVL(app.keyMain, app.keyAccount, app.keyStake, app.keySlashing, app.keyFeeCollection, app.keyPaychan)
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err := app.LoadLatestVersion(app.keyMain)
if err != nil {
cmn.Exit(err.Error())
}
return app
}
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// Creates a codec for use across the whole app.
func CreateKavaAppCodec() *wire.Codec {
cdc := wire.NewCodec()
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paychan.RegisterWire(cdc)
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//ibc.RegisterWire(cdc)
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bank.RegisterWire(cdc)
stake.RegisterWire(cdc)
slashing.RegisterWire(cdc)
//gov.RegisterWire(cdc)
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auth.RegisterWire(cdc)
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sdk.RegisterWire(cdc)
wire.RegisterCrypto(cdc)
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return cdc
}
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// The function baseapp runs on receipt of a BeginBlock ABCI message
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func (app *KavaApp) BeginBlocker(ctx sdk.Context, req abci.RequestBeginBlock) abci.ResponseBeginBlock {
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tags := slashing.BeginBlocker(ctx, req, app.slashingKeeper)
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return abci.ResponseBeginBlock{
Tags: tags.ToKVPairs(),
}
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}
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// The function baseapp runs on receipt of a EndBlock ABCI message
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func (app *KavaApp) EndBlocker(ctx sdk.Context, req abci.RequestEndBlock) abci.ResponseEndBlock {
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validatorUpdates := stake.EndBlocker(ctx, app.stakeKeeper)
//tags, _ := gov.EndBlocker(ctx, app.govKeeper)
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return abci.ResponseEndBlock{
ValidatorUpdates: validatorUpdates,
//Tags: tags,
}
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}
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// Initialzes the app db from the appState in the genesis file. Baseapp runs this on receipt of an InitChain ABCI message
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func (app *KavaApp) initChainer(ctx sdk.Context, req abci.RequestInitChain) abci.ResponseInitChain {
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stateJSON := req.AppStateBytes
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var genesisState GenesisState
err := app.cdc.UnmarshalJSON(stateJSON, &genesisState)
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if err != nil {
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panic(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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acc.AccountNumber = app.accountMapper.GetNextAccountNumber(ctx)
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app.accountMapper.SetAccount(ctx, acc)
}
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// load the initial stake information
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err = stake.InitGenesis(ctx, app.stakeKeeper, genesisState.StakeData)
if err != nil {
panic(err)
}
//gov.InitGenesis(ctx, app.govKeeper, gov.DefaultGenesisState())
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return abci.ResponseInitChain{}
}
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//
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func (app *KavaApp) ExportAppStateAndValidators() (appState json.RawMessage, validators []tmtypes.GenesisValidator, err error) {
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ctx := app.NewContext(true, abci.Header{})
// iterate to get the accounts
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accounts := []GenesisAccount{}
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appendAccount := func(acc auth.Account) (stop bool) {
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account := NewGenesisAccountI(acc)
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accounts = append(accounts, account)
return false
}
app.accountMapper.IterateAccounts(ctx, appendAccount)
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genState := GenesisState{
Accounts: accounts,
StakeData: stake.WriteGenesis(ctx, app.stakeKeeper),
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}
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appState, err = wire.MarshalJSONIndent(app.cdc, genState)
if err != nil {
return nil, nil, err
}
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validators = stake.WriteValidators(ctx, app.stakeKeeper)
return appState, validators, nil
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}