0g-chain/app/app.go

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package app
import (
"io"
"os"
abci "github.com/tendermint/tendermint/abci/types"
cmn "github.com/tendermint/tendermint/libs/common"
"github.com/tendermint/tendermint/libs/log"
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dbm "github.com/tendermint/tm-db"
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bam "github.com/cosmos/cosmos-sdk/baseapp"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/types/module"
"github.com/cosmos/cosmos-sdk/version"
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"github.com/cosmos/cosmos-sdk/x/auth"
"github.com/cosmos/cosmos-sdk/x/bank"
"github.com/cosmos/cosmos-sdk/x/crisis"
distr "github.com/cosmos/cosmos-sdk/x/distribution"
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"github.com/cosmos/cosmos-sdk/x/genutil"
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"github.com/cosmos/cosmos-sdk/x/gov"
"github.com/cosmos/cosmos-sdk/x/mint"
"github.com/cosmos/cosmos-sdk/x/params"
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paramsclient "github.com/cosmos/cosmos-sdk/x/params/client"
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"github.com/cosmos/cosmos-sdk/x/slashing"
"github.com/cosmos/cosmos-sdk/x/staking"
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"github.com/cosmos/cosmos-sdk/x/supply"
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)
const (
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appName = "kava"
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Bech32MainPrefix = "kava"
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)
var (
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// default home directories for expected binaries
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DefaultCLIHome = os.ExpandEnv("$HOME/.kvcli")
DefaultNodeHome = os.ExpandEnv("$HOME/.kvd")
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// ModuleBasics manages simple versions of full app modules. It's used for things such as codec registration and genesis file verification.
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ModuleBasics = module.NewBasicManager(
genutil.AppModuleBasic{},
auth.AppModuleBasic{},
bank.AppModuleBasic{},
staking.AppModuleBasic{},
mint.AppModuleBasic{},
distr.AppModuleBasic{},
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gov.NewAppModuleBasic(paramsclient.ProposalHandler, distr.ProposalHandler),
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params.AppModuleBasic{},
crisis.AppModuleBasic{},
slashing.AppModuleBasic{},
supply.AppModuleBasic{},
)
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// module account permissions
mAccPerms = map[string][]string{
auth.FeeCollectorName: nil,
distr.ModuleName: nil,
mint.ModuleName: {supply.Minter},
staking.BondedPoolName: {supply.Burner, supply.Staking},
staking.NotBondedPoolName: {supply.Burner, supply.Staking},
gov.ModuleName: {supply.Burner},
}
)
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// Extended ABCI application
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type App struct {
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*bam.BaseApp
cdc *codec.Codec
invCheckPeriod uint
// keys to access the substores
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keys map[string]*sdk.KVStoreKey
tkeys map[string]*sdk.TransientStoreKey
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// keepers from all the modules
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accountKeeper auth.AccountKeeper
bankKeeper bank.Keeper
supplyKeeper supply.Keeper
stakingKeeper staking.Keeper
slashingKeeper slashing.Keeper
mintKeeper mint.Keeper
distrKeeper distr.Keeper
govKeeper gov.Keeper
crisisKeeper crisis.Keeper
paramsKeeper params.Keeper
// the module manager
mm *module.Manager
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// simulation manager
sm *module.SimulationManager
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}
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// NewApp returns a reference to an initialized App.
func NewApp(logger log.Logger, db dbm.DB, traceStore io.Writer, loadLatest bool,
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invCheckPeriod uint,
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baseAppOptions ...func(*bam.BaseApp)) *App {
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cdc := MakeCodec()
bApp := bam.NewBaseApp(appName, logger, db, auth.DefaultTxDecoder(cdc), baseAppOptions...)
bApp.SetCommitMultiStoreTracer(traceStore)
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bApp.SetAppVersion(version.Version)
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keys := sdk.NewKVStoreKeys(
bam.MainStoreKey, auth.StoreKey, staking.StoreKey,
supply.StoreKey, mint.StoreKey, distr.StoreKey, slashing.StoreKey,
gov.StoreKey, params.StoreKey,
)
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tkeys := sdk.NewTransientStoreKeys(params.TStoreKey)
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var app = &App{
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BaseApp: bApp,
cdc: cdc,
invCheckPeriod: invCheckPeriod,
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keys: keys,
tkeys: tkeys,
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}
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// init params keeper and subspaces
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app.paramsKeeper = params.NewKeeper(app.cdc, keys[params.StoreKey], tkeys[params.TStoreKey], params.DefaultCodespace)
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authSubspace := app.paramsKeeper.Subspace(auth.DefaultParamspace)
bankSubspace := app.paramsKeeper.Subspace(bank.DefaultParamspace)
stakingSubspace := app.paramsKeeper.Subspace(staking.DefaultParamspace)
mintSubspace := app.paramsKeeper.Subspace(mint.DefaultParamspace)
distrSubspace := app.paramsKeeper.Subspace(distr.DefaultParamspace)
slashingSubspace := app.paramsKeeper.Subspace(slashing.DefaultParamspace)
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govSubspace := app.paramsKeeper.Subspace(gov.DefaultParamspace).WithKeyTable(gov.ParamKeyTable())
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crisisSubspace := app.paramsKeeper.Subspace(crisis.DefaultParamspace)
// add keepers
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app.accountKeeper = auth.NewAccountKeeper(
app.cdc,
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keys[auth.StoreKey],
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authSubspace,
auth.ProtoBaseAccount)
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app.bankKeeper = bank.NewBaseKeeper(
app.accountKeeper,
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bankSubspace,
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bank.DefaultCodespace,
app.ModuleAccountAddrs())
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app.supplyKeeper = supply.NewKeeper(
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app.cdc,
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keys[supply.StoreKey],
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app.accountKeeper,
app.bankKeeper,
mAccPerms)
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stakingKeeper := staking.NewKeeper(
app.cdc,
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keys[staking.StoreKey],
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app.supplyKeeper,
stakingSubspace,
staking.DefaultCodespace)
app.mintKeeper = mint.NewKeeper(
app.cdc,
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keys[mint.StoreKey],
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mintSubspace,
&stakingKeeper,
app.supplyKeeper,
auth.FeeCollectorName)
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app.distrKeeper = distr.NewKeeper(
app.cdc,
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keys[distr.StoreKey],
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distrSubspace,
&stakingKeeper,
app.supplyKeeper,
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distr.DefaultCodespace,
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auth.FeeCollectorName,
app.ModuleAccountAddrs())
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app.slashingKeeper = slashing.NewKeeper(
app.cdc,
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keys[slashing.StoreKey],
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&stakingKeeper,
slashingSubspace,
slashing.DefaultCodespace)
app.crisisKeeper = crisis.NewKeeper(
crisisSubspace,
invCheckPeriod,
app.supplyKeeper,
auth.FeeCollectorName)
govRouter := gov.NewRouter()
govRouter.
AddRoute(gov.RouterKey, gov.ProposalHandler).
AddRoute(params.RouterKey, params.NewParamChangeProposalHandler(app.paramsKeeper)).
AddRoute(distr.RouterKey, distr.NewCommunityPoolSpendProposalHandler(app.distrKeeper))
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app.govKeeper = gov.NewKeeper(
app.cdc,
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keys[gov.StoreKey],
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govSubspace,
app.supplyKeeper,
&stakingKeeper,
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gov.DefaultCodespace,
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govRouter)
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// register the staking hooks
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// NOTE: stakingKeeper above is passed by reference, so that it will contain these hooks
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app.stakingKeeper = *stakingKeeper.SetHooks(
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staking.NewMultiStakingHooks(app.distrKeeper.Hooks(), app.slashingKeeper.Hooks()))
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// create the module manager (Note: Any module instantiated in the module manager that is later modified
// must be passed by reference here.)
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app.mm = module.NewManager(
genutil.NewAppModule(app.accountKeeper, app.stakingKeeper, app.BaseApp.DeliverTx),
auth.NewAppModule(app.accountKeeper),
bank.NewAppModule(app.bankKeeper, app.accountKeeper),
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crisis.NewAppModule(&app.crisisKeeper),
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supply.NewAppModule(app.supplyKeeper, app.accountKeeper),
distr.NewAppModule(app.distrKeeper, app.supplyKeeper),
gov.NewAppModule(app.govKeeper, app.supplyKeeper),
mint.NewAppModule(app.mintKeeper),
slashing.NewAppModule(app.slashingKeeper, app.stakingKeeper),
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staking.NewAppModule(app.stakingKeeper, app.accountKeeper, app.supplyKeeper),
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)
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// During begin block slashing happens after distr.BeginBlocker so that
// there is nothing left over in the validator fee pool, so as to keep the
// CanWithdrawInvariant invariant.
app.mm.SetOrderBeginBlockers(mint.ModuleName, distr.ModuleName, slashing.ModuleName)
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app.mm.SetOrderEndBlockers(crisis.ModuleName, gov.ModuleName, staking.ModuleName)
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// genutils must occur after staking so that pools are properly
// initialized with tokens from genesis accounts.
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// TODO should auth be first?
app.mm.SetOrderInitGenesis(
auth.ModuleName, distr.ModuleName,
staking.ModuleName, bank.ModuleName, slashing.ModuleName,
gov.ModuleName, mint.ModuleName, supply.ModuleName, crisis.ModuleName, genutil.ModuleName,
)
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app.mm.RegisterInvariants(&app.crisisKeeper)
app.mm.RegisterRoutes(app.Router(), app.QueryRouter())
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// create the simulation manager and define the order of the modules for deterministic simulations
//
// NOTE: This is not required for apps that don't use the simulator for fuzz testing
// transactions.
app.sm = module.NewSimulationManager(
auth.NewAppModule(app.accountKeeper),
bank.NewAppModule(app.bankKeeper, app.accountKeeper),
supply.NewAppModule(app.supplyKeeper, app.accountKeeper),
gov.NewAppModule(app.govKeeper, app.supplyKeeper),
mint.NewAppModule(app.mintKeeper),
distr.NewAppModule(app.distrKeeper, app.supplyKeeper),
staking.NewAppModule(app.stakingKeeper, app.accountKeeper, app.supplyKeeper),
slashing.NewAppModule(app.slashingKeeper, app.stakingKeeper),
)
app.sm.RegisterStoreDecoders()
// initialize stores
app.MountKVStores(keys)
app.MountTransientStores(tkeys)
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// initialize the app
app.SetInitChainer(app.InitChainer)
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app.SetBeginBlocker(app.BeginBlocker)
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app.SetAnteHandler(auth.NewAnteHandler(app.accountKeeper, app.supplyKeeper, auth.DefaultSigVerificationGasConsumer))
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app.SetEndBlocker(app.EndBlocker)
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// load store
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if loadLatest {
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err := app.LoadLatestVersion(app.keys[bam.MainStoreKey])
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if err != nil {
cmn.Exit(err.Error())
}
}
return app
}
// custom tx codec
func MakeCodec() *codec.Codec {
var cdc = codec.New()
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ModuleBasics.RegisterCodec(cdc)
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sdk.RegisterCodec(cdc)
codec.RegisterCrypto(cdc)
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codec.RegisterEvidences(cdc)
return cdc.Seal()
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}
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func SetBech32AddressPrefixes(config *sdk.Config) {
config.SetBech32PrefixForAccount(Bech32MainPrefix, Bech32MainPrefix+sdk.PrefixPublic)
config.SetBech32PrefixForValidator(Bech32MainPrefix+sdk.PrefixValidator+sdk.PrefixOperator, Bech32MainPrefix+sdk.PrefixValidator+sdk.PrefixOperator+sdk.PrefixPublic)
config.SetBech32PrefixForConsensusNode(Bech32MainPrefix+sdk.PrefixValidator+sdk.PrefixConsensus, Bech32MainPrefix+sdk.PrefixValidator+sdk.PrefixConsensus+sdk.PrefixPublic)
}
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// application updates every end block
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func (app *App) BeginBlocker(ctx sdk.Context, req abci.RequestBeginBlock) abci.ResponseBeginBlock {
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return app.mm.BeginBlock(ctx, req)
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}
// application updates every end block
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func (app *App) EndBlocker(ctx sdk.Context, req abci.RequestEndBlock) abci.ResponseEndBlock {
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return app.mm.EndBlock(ctx, req)
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}
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// custom logic for app initialization
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func (app *App) InitChainer(ctx sdk.Context, req abci.RequestInitChain) abci.ResponseInitChain {
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var genesisState GenesisState
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app.cdc.MustUnmarshalJSON(req.AppStateBytes, &genesisState)
return app.mm.InitGenesis(ctx, genesisState)
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}
// load a particular height
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func (app *App) LoadHeight(height int64) error {
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return app.LoadVersion(height, app.keys[bam.MainStoreKey])
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}
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// ModuleAccountAddrs returns all the app's module account addresses.
func (app *App) ModuleAccountAddrs() map[string]bool {
modAccAddrs := make(map[string]bool)
for acc := range mAccPerms {
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modAccAddrs[supply.NewModuleAddress(acc).String()] = true
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}
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return modAccAddrs
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}
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// Codec returns the application's sealed codec.
func (app *App) Codec() *codec.Codec {
return app.cdc
}
// GetMaccPerms returns a mapping of the application's module account permissions.
func GetMaccPerms() map[string][]string {
perms := make(map[string][]string)
for k, v := range mAccPerms {
perms[k] = v
}
return perms
}