Pegzone witness

go.mod

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+module github.com/DE-labtory/erc20peggy
+
+go 1.12
+
+require (
+	github.com/cosmos/cosmos-sdk v0.34.3
+	github.com/gogo/protobuf v1.2.1
+	github.com/gorilla/mux v1.7.1
+	github.com/spf13/cobra v0.0.3
+	github.com/tendermint/tendermint v0.31.5
+)

pegzone/app.go

@@ -0,0 +1,17 @@
+/*
+ * Copyright 2019 DE-labtory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package pegzone

pegzone/x/witness/client/cli/tx.go

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2019 DE-labtory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cli
+
+import (
+	"encoding/json"
+
+	"github.com/DE-labtory/erc20peggy/pegzone/x/witness"
+	"github.com/cosmos/cosmos-sdk/client/context"
+	"github.com/cosmos/cosmos-sdk/client/utils"
+	"github.com/cosmos/cosmos-sdk/codec"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	authtxb "github.com/cosmos/cosmos-sdk/x/auth/client/txbuilder"
+	"github.com/spf13/cobra"
+)
+
+func GetLockCmd(cdc *codec.Codec) *cobra.Command {
+	return &cobra.Command{
+		Use:  "lock [address] [data]",
+		Args: cobra.ExactArgs(2),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			cliCtx := context.NewCLIContext().WithCodec(cdc).WithAccountDecoder(cdc)
+			if err := cliCtx.EnsureAccountExists(); err != nil {
+				return err
+			}
+
+			data, err := json.Marshal(args[0])
+			if err != nil {
+				return err
+			}
+
+			msg := witness.NewMsgLock(data, args[1], cliCtx.GetFromAddress())
+			err = msg.ValidateBasic()
+			if err != nil {
+				return err
+			}
+
+			cliCtx.PrintResponse = true
+			return utils.GenerateOrBroadcastMsgs(
+				cliCtx,
+				authtxb.NewTxBuilderFromCLI().WithTxEncoder(utils.GetTxEncoder(cdc)),
+				[]sdk.Msg{msg},
+				false,
+			)
+		},
+	}
+}

pegzone/x/witness/client/rest/rest.go

@@ -0,0 +1,78 @@
+/*
+ * Copyright 2019 DE-labtory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package rest
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/DE-labtory/erc20peggy/pegzone/x/witness"
+	"github.com/cosmos/cosmos-sdk/client/context"
+	clientrest "github.com/cosmos/cosmos-sdk/client/rest"
+	"github.com/cosmos/cosmos-sdk/codec"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/cosmos/cosmos-sdk/types/rest"
+	"github.com/gorilla/mux"
+)
+
+const (
+	restName = "pegzone"
+)
+
+// RegisterRoutes - Central function to define routes that get registered by the main application
+func RegisterRoutes(cliCtx context.CLIContext, r *mux.Router, cdc *codec.Codec) {
+	r.HandleFunc(fmt.Sprintf("/%s/lock", restName), lockHandler(cdc, cliCtx)).Methods("POST")
+}
+
+type lockReq struct {
+	BaseReq rest.BaseReq `json:"base_req"`
+	Data    []byte       `json:"data"`
+	Address string       `json:"address"`
+	Owner   string       `json:"owner"`
+}
+
+func lockHandler(cdc *codec.Codec, cliCtx context.CLIContext) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var req lockReq
+
+		if !rest.ReadRESTReq(w, r, cdc, &req) {
+			rest.WriteErrorResponse(w, http.StatusBadRequest, "failed to parse request")
+			return
+		}
+
+		baseReq := req.BaseReq.Sanitize()
+		if !baseReq.ValidateBasic(w) {
+			return
+		}
+
+		addr, err := sdk.AccAddressFromBech32(req.Owner)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
+			return
+		}
+
+		// create the message
+		msg := witness.NewMsgLock(req.Data, req.Address, addr)
+		err = msg.ValidateBasic()
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
+			return
+		}
+
+		clientrest.WriteGenerateStdTxResponse(w, cdc, cliCtx, baseReq, []sdk.Msg{msg})
+	}
+}

pegzone/x/witness/codec.go

@@ -0,0 +1,24 @@
+/*
+ * Copyright 2019 DE-labtory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package witness
+
+import "github.com/cosmos/cosmos-sdk/codec"
+
+// RegisterCodec registers concrete types on the Amino codec
+func RegisterCodec(cdc *codec.Codec) {
+	cdc.RegisterConcrete(MsgLock{}, "nameservice/SetName", nil)
+}

pegzone/x/witness/handler.go

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2019 DE-labtory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package witness
+
+import (
+	"reflect"
+
+	sdk "github.com/cosmos/cosmos-sdk/types"
+)
+
+func NewHandler(keeper Keeper) sdk.Handler {
+	return func(ctx sdk.Context, msg sdk.Msg) sdk.Result {
+		switch msg := msg.(type) {
+		case MsgLock:
+			return handleMsgLock(ctx, keeper, msg)
+		default:
+			errMsg := "Unrecognized lock Msg type: " + reflect.TypeOf(msg).Name()
+			return sdk.ErrUnknownRequest(errMsg).Result()
+		}
+	}
+}
+
+// Handle lock message
+func handleMsgLock(ctx sdk.Context, keeper Keeper, msg MsgLock) sdk.Result {
+	return sdk.Result{}
+}

pegzone/x/witness/keeper.go

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2019 DE-labtory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package witness
+
+import (
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/gogo/protobuf/codec"
+)
+
+type Keeper struct {
+	cdc      *codec.Codec
+	storeKey sdk.StoreKey
+
+	//todo use cosmos erc20 keeper or client?
+}
+
+func NewKeeper(cdc *codec.Codec, storeKey sdk.StoreKey) Keeper {
+	return Keeper{
+		cdc:      cdc,
+		storeKey: storeKey,
+	}
+}

pegzone/x/witness/msgs.go

@@ -0,0 +1,67 @@
+/*
+ * Copyright 2019 DE-labtory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package witness
+
+import (
+	"encoding/json"
+
+	sdk "github.com/cosmos/cosmos-sdk/types"
+)
+
+type MsgLock struct {
+	Data    []byte
+	Address string
+	Owner   sdk.AccAddress
+}
+
+func NewMsgLock(data []byte, address string, owner sdk.AccAddress) MsgLock {
+	return MsgLock{
+		Address: address,
+		Data:    data,
+		Owner:   owner,
+	}
+}
+
+func (msg MsgLock) Route() string {
+	return "witness"
+}
+
+func (msg MsgLock) Type() string {
+	return "lock"
+}
+
+func (msg MsgLock) ValidateBasic() sdk.Error {
+	if msg.Owner.Empty() {
+		return sdk.ErrInvalidAddress(msg.Owner.String())
+	}
+	if len(msg.Address) == 0 || len(msg.Data) == 0 {
+		return sdk.ErrUnknownRequest("Name and/or Value cannot be empty")
+	}
+	return nil
+}
+
+func (msg MsgLock) GetSignBytes() []byte {
+	b, err := json.Marshal(msg)
+	if err != nil {
+		panic(err)
+	}
+	return sdk.MustSortJSON(b)
+}
+
+func (msg MsgLock) GetSigners() []sdk.AccAddress {
+	return []sdk.AccAddress{msg.Owner}
+}