embed gravity bridge module

Closes #9

- add gravity module to app
- verify address format at application level
- fix pystarport config files
- build orchestrator in nix
- add a gravity hook implementation template in cronos module
- add gravity custom gentx command

fix chain id and err handling code

add eth_keys command

CHANGELOG.md

@@ -28,6 +28,9 @@ This version is a new scaffolding of cronos project where ethermint is included
 - (ethermint) [tharsis#383](https://github.com/tharsis/ethermint/pull/383) `GetCommittedState` use the original context.
 
 ### Features
+
+- [#11](https://github.com/crypto-org-chain/cronos/pull/11) embed gravity bridge module
+
 ### Improvements
 
 - (ethermint) [tharsis#425](https://github.com/tharsis/ethermint/pull/425) Support build on linux arm64

app/app.go

@@ -24,6 +24,7 @@ import (
 	servertypes "github.com/cosmos/cosmos-sdk/server/types"
 	"github.com/cosmos/cosmos-sdk/testutil/testdata"
 	sdk "github.com/cosmos/cosmos-sdk/types"
+	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 	"github.com/cosmos/cosmos-sdk/types/module"
 	"github.com/cosmos/cosmos-sdk/version"
 	"github.com/cosmos/cosmos-sdk/x/auth"
@@ -101,13 +102,24 @@ import (
 	evmkeeper "github.com/tharsis/ethermint/x/evm/keeper"
 	evmtypes "github.com/tharsis/ethermint/x/evm/types"
 
+	"github.com/peggyjv/gravity-bridge/module/x/gravity"
+	gravitykeeper "github.com/peggyjv/gravity-bridge/module/x/gravity/keeper"
+	gravitytypes "github.com/peggyjv/gravity-bridge/module/x/gravity/types"
+
 	// this line is used by starport scaffolding # stargate/app/moduleImport
 	cronosmodule "github.com/crypto-org-chain/cronos/x/cronos"
 	cronosmodulekeeper "github.com/crypto-org-chain/cronos/x/cronos/keeper"
 	cronosmoduletypes "github.com/crypto-org-chain/cronos/x/cronos/types"
 )
 
-const Name = "cronos"
+const (
+	Name = "cronos"
+
+	// AddrLen is the allowed length (in bytes) for an address.
+	//
+	// NOTE: In the SDK, the default value is 255.
+	AddrLen = 20
+)
 
 // this line is used by starport scaffolding # stargate/wasm/app/enabledProposals
 
@@ -154,6 +166,7 @@ var (
 		transfer.AppModuleBasic{},
 		vesting.AppModuleBasic{},
 		evm.AppModuleBasic{},
+		gravity.AppModuleBasic{},
 		// this line is used by starport scaffolding # stargate/app/moduleBasic
 		cronosmodule.AppModuleBasic{},
 	)
@@ -168,6 +181,7 @@ var (
 		govtypes.ModuleName:            {authtypes.Burner},
 		ibctransfertypes.ModuleName:    {authtypes.Minter, authtypes.Burner},
 		evmtypes.ModuleName:            {authtypes.Minter, authtypes.Burner}, // used for secure addition and subtraction of balance using module account
+		gravitytypes.ModuleName:        {authtypes.Minter, authtypes.Burner},
 	}
 	// Module configurator
 
@@ -229,6 +243,9 @@ type App struct {
 	// Ethermint keepers
 	EvmKeeper *evmkeeper.Keeper
 
+	// Gravity module
+	GravityKeeper gravitykeeper.Keeper
+
 	// this line is used by starport scaffolding # stargate/app/keeperDeclaration
 
 	CronosKeeper cronosmodulekeeper.Keeper
@@ -271,6 +288,7 @@ func New(
 		ibchost.StoreKey, ibctransfertypes.StoreKey,
 		// ethermint keys
 		evmtypes.StoreKey,
+		gravitytypes.StoreKey,
 		// this line is used by starport scaffolding # stargate/app/storeKey
 		cronosmoduletypes.StoreKey,
 	)
@@ -338,7 +356,11 @@ func New(
 	// register the staking hooks
 	// NOTE: stakingKeeper above is passed by reference, so that it will contain these hooks
 	app.StakingKeeper = *stakingKeeper.SetHooks(
-		stakingtypes.NewMultiStakingHooks(app.DistrKeeper.Hooks(), app.SlashingKeeper.Hooks()),
+		stakingtypes.NewMultiStakingHooks(
+			app.DistrKeeper.Hooks(),
+			app.SlashingKeeper.Hooks(),
+			app.GravityKeeper.Hooks(),
+		),
 	)
 
 	// ... other modules keepers
@@ -393,6 +415,18 @@ func New(
 		&stakingKeeper, govRouter,
 	)
 
+	gravityKeeper := gravitykeeper.NewKeeper(
+		appCodec,
+		keys[gravitytypes.StoreKey],
+		app.GetSubspace(gravitytypes.ModuleName),
+		app.AccountKeeper,
+		app.StakingKeeper,
+		app.BankKeeper,
+		app.SlashingKeeper,
+		sdk.DefaultPowerReduction,
+	)
+	app.GravityKeeper = *gravityKeeper.SetHooks(app.CronosKeeper)
+
 	// Create static IBC router, add transfer route, then set and seal it
 	ibcRouter := porttypes.NewRouter()
 	ibcRouter.AddRoute(ibctransfertypes.ModuleName, transferModule)
@@ -432,6 +466,7 @@ func New(
 
 		transferModule,
 		evm.NewAppModule(app.EvmKeeper, app.AccountKeeper),
+		gravity.NewAppModule(app.GravityKeeper, app.BankKeeper),
 		// this line is used by starport scaffolding # stargate/app/appModule
 		cronosModule,
 	)
@@ -446,11 +481,13 @@ func New(
 		evmtypes.ModuleName,
 		minttypes.ModuleName, distrtypes.ModuleName, slashingtypes.ModuleName,
 		evidencetypes.ModuleName, stakingtypes.ModuleName, ibchost.ModuleName,
+		gravitytypes.ModuleName,
 	)
 
 	app.mm.SetOrderEndBlockers(
 		crisistypes.ModuleName, govtypes.ModuleName, stakingtypes.ModuleName,
 		evmtypes.ModuleName,
+		gravitytypes.ModuleName,
 	)
 
 	// NOTE: The genutils module must occur after staking so that pools are
@@ -475,6 +512,7 @@ func New(
 		authz.ModuleName,
 		feegrant.ModuleName,
 		evmtypes.ModuleName,
+		gravitytypes.ModuleName,
 		// this line is used by starport scaffolding # stargate/app/initGenesis
 		cronosmoduletypes.ModuleName,
 	)
@@ -691,8 +729,24 @@ func initParamsKeeper(appCodec codec.BinaryCodec, legacyAmino *codec.LegacyAmino
 	paramsKeeper.Subspace(ibctransfertypes.ModuleName)
 	paramsKeeper.Subspace(ibchost.ModuleName)
 	paramsKeeper.Subspace(evmtypes.ModuleName)
+	paramsKeeper.Subspace(gravitytypes.ModuleName)
 	// this line is used by starport scaffolding # stargate/app/paramSubspace
 	paramsKeeper.Subspace(cronosmoduletypes.ModuleName)
 
 	return paramsKeeper
 }
+
+// VerifyAddressFormat verifis the address is compatible with ethereum
+func VerifyAddressFormat(bz []byte) error {
+	if len(bz) == 0 {
+		return sdkerrors.Wrap(sdkerrors.ErrUnknownAddress, "invalid address; cannot be empty")
+	}
+	if len(bz) != AddrLen {
+		return sdkerrors.Wrapf(
+			sdkerrors.ErrUnknownAddress,
+			"invalid address length; got: %d, expect: %d", len(bz), AddrLen,
+		)
+	}
+
+	return nil
+}

app/prefix.go

@@ -10,5 +10,7 @@ func SetConfig() {
 	// use the configurations from ethermint
 	cmdcfg.SetBech32Prefixes(config)
 	cmdcfg.SetBip44CoinType(config)
+	// Make sure address is compatible with ethereum
+	config.SetAddressVerifier(VerifyAddressFormat)
 	config.Seal()
 }

cmd/cronosd/cmd/root.go

@@ -33,6 +33,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/x/crisis"
 	genutilcli "github.com/cosmos/cosmos-sdk/x/genutil/client/cli"
 
+	gravitycmd "github.com/peggyjv/gravity-bridge/module/cmd/gravity/cmd"
 	ethermintclient "github.com/tharsis/ethermint/client"
 	"github.com/tharsis/ethermint/crypto/hd"
 	ethermintserver "github.com/tharsis/ethermint/server"
@@ -110,7 +111,7 @@ func initRootCmd(rootCmd *cobra.Command, encodingConfig params.EncodingConfig) {
 		),
 		genutilcli.CollectGenTxsCmd(banktypes.GenesisBalancesIterator{}, app.DefaultNodeHome),
 		genutilcli.MigrateGenesisCmd(),
-		genutilcli.GenTxCmd(app.ModuleBasics, encodingConfig.TxConfig, banktypes.GenesisBalancesIterator{}, app.DefaultNodeHome),
+		gravitycmd.GenTxCmd(app.ModuleBasics, encodingConfig.TxConfig, banktypes.GenesisBalancesIterator{}, app.DefaultNodeHome),
 		genutilcli.ValidateGenesisCmd(app.ModuleBasics),
 		AddGenesisAccountCmd(app.DefaultNodeHome),
 		tmcli.NewCompletionCmd(rootCmd, true),
@@ -129,6 +130,7 @@ func initRootCmd(rootCmd *cobra.Command, encodingConfig params.EncodingConfig) {
 		queryCommand(),
 		txCommand(),
 		ethermintclient.KeyCommands(app.DefaultNodeHome),
+		gravitycmd.Commands(app.DefaultNodeHome),
 	)
 
 	// add rosetta

go.mod

@@ -10,6 +10,8 @@ require (
 	github.com/google/go-cmp v0.5.6 // indirect
 	github.com/gorilla/mux v1.8.0
 	github.com/grpc-ecosystem/grpc-gateway v1.16.0
+	github.com/peggyjv/gravity-bridge/module v0.1.21
+	github.com/pkg/errors v0.9.1
 	github.com/spf13/cast v1.4.1
 	github.com/spf13/cobra v1.2.1
 	github.com/spf13/pflag v1.0.5

go.sum

@@ -764,6 +764,8 @@ github.com/pascaldekloe/goe v0.1.0/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144T
 github.com/paulbellamy/ratecounter v0.2.0/go.mod h1:Hfx1hDpSGoqxkVVpBi/IlYD7kChlfo5C6hzIHwPqfFE=
 github.com/pborman/uuid v0.0.0-20170112150404-1b00554d8222/go.mod h1:VyrYX9gd7irzKovcSS6BIIEwPRkP2Wm2m9ufcdFSJ34=
 github.com/pborman/uuid v1.2.0/go.mod h1:X/NO0urCmaxf9VXbdlT7C2Yzkj2IKimNn4k+gtPdI/k=
+github.com/peggyjv/gravity-bridge/module v0.1.21 h1:5QBK682gf67vQoCpedeJYzTPPLWvZJtmqLxj7lWEJ+o=
+github.com/peggyjv/gravity-bridge/module v0.1.21/go.mod h1:Key1D2z/KaJ5A206L3EQW6RWo4q8w+Jpl+p5HMm896g=
 github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
 github.com/pelletier/go-toml v1.9.3 h1:zeC5b1GviRUyKYd6OJPvBU/mcVDVoL1OhT17FCt5dSQ=
 github.com/pelletier/go-toml v1.9.3/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCkoOuaOx1Y+c=

gomod2nix.toml

@@ -2995,6 +2995,15 @@
     rev = "8b1b92947f46224e3b97bb1a3a5b0382be00d31e"
     sha256 = "0f146yjqwx2mr110kl8scjhqd08hys7vr5z0d0a3lskb6yy22gfg"
 
+["github.com/peggyjv/gravity-bridge/module"]
+  sumVersion = "v0.1.21"
+  relPath = "module"
+  ["github.com/peggyjv/gravity-bridge/module".fetch]
+    type = "git"
+    url = "https://github.com/peggyjv/gravity-bridge"
+    rev = "755156abff254420eec2c4e54fb6e8d189556ee2"
+    sha256 = "1fjkq0jv42pq7fsah4chk2d1xkrdnkb9x52lkyagzlykw08ywcvr"
+
 ["github.com/pelletier/go-toml"]
   sumVersion = "v1.9.3"
   ["github.com/pelletier/go-toml".fetch]

nix/default.nix

@@ -18,6 +18,21 @@ import sources.nixpkgs {
         };
       }
     )
+    (_: pkgs: {
+      orchestrator = pkgs.rustPlatform.buildRustPackage rec {
+        name = "orchestrator";
+        src = sources.gravity-bridge;
+        sourceRoot = "gravity-bridge-src/${name}";
+        cargoSha256 = sha256:1sp1f959qzigrpxi3qz33sr4cbl7s805p72nhv7gymjzjscr578z;
+        cargoBuildFlags = "-p ${name}";
+        doCheck = false;
+        OPENSSL_NO_VENDOR = "1";
+        OPENSSL_DIR = pkgs.symlinkJoin {
+          name = "openssl";
+          paths = with pkgs.openssl; [ out dev ];
+        };
+      };
+    })
   ];
   config = { };
   inherit system;

nix/sources.json

@@ -11,6 +11,19 @@
         "url": "https://github.com/tweag/gomod2nix/archive/67f22dd738d092c6ba88e420350ada0ed4992ae8.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
+    "gravity-bridge": {
+        "branch": "main",
+        "description": "A CosmosSDK application for moving assets on and off of EVM based, POW chains",
+        "homepage": "",
+        "owner": "PeggyJV",
+        "repo": "gravity-bridge",
+        "rev": "755156abff254420eec2c4e54fb6e8d189556ee2",
+        "sha256": "1fjkq0jv42pq7fsah4chk2d1xkrdnkb9x52lkyagzlykw08ywcvr",
+        "type": "tarball",
+        "url": "https://github.com/PeggyJV/gravity-bridge/archive/refs/tags/v0.1.21.tar.gz",
+        "url_template": "https://github.com/PeggyJV/gravity-bridge/archive/refs/tags/v0.1.21.tar.gz",
+        "version": "0.1.21"
+    },
     "niv": {
         "branch": "master",
         "description": "Easy dependency management for Nix projects",

x/cronos/keeper/hooks.go

@@ -0,0 +1,19 @@
+package keeper
+
+import (
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	gravitytypes "github.com/peggyjv/gravity-bridge/module/x/gravity/types"
+)
+
+// TODO Implements GravityHooks interface
+func (k Keeper) AfterContractCallExecutedEvent(ctx sdk.Context, event gravitytypes.ContractCallExecutedEvent) {
+}
+
+func (k Keeper) AfterERC20DeployedEvent(ctx sdk.Context, event gravitytypes.ERC20DeployedEvent) {}
+
+func (k Keeper) AfterSignerSetExecutedEvent(ctx sdk.Context, event gravitytypes.SignerSetTxExecutedEvent) {
+}
+
+func (k Keeper) AfterBatchExecutedEvent(ctx sdk.Context, event gravitytypes.BatchExecutedEvent) {}
+
+func (k Keeper) AfterSendToCosmosEvent(ctx sdk.Context, event gravitytypes.SendToCosmosEvent) {}