Merge pull request #9 from yann-sjtu/wasm_support

dapp/wasm/const.go

+package wasm
+
+// action for executor
+const (
+	WasmActionCreate = iota + 1
+	WasmActionCall
+)
+
+const (
+	WasmX = "wasm"
+)

dapp/wasm/wasm.go

+package wasm
+
+import (
+	"io/ioutil"
+	"math/rand"
+	"time"
+
+	sdk "github.com/33cn/chain33-sdk-go"
+	"github.com/33cn/chain33-sdk-go/crypto"
+	"github.com/33cn/chain33-sdk-go/types"
+)
+
+var r *rand.Rand
+
+func init() {
+	r = rand.New(rand.NewSource(time.Now().UnixNano()))
+}
+
+func CreateWasmCreateTx(paraName, path, name string, privKey, cert, uid []byte) (*types.Transaction, error) {
+	code, err := ioutil.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+	payload := &types.WasmAction{
+		Ty: WasmActionCreate,
+		Value: &types.WasmAction_Create{
+			Create: &types.WasmCreate{
+				Name: name,
+				Code: code,
+			},
+		},
+	}
+	tx := &types.Transaction{Execer: []byte(paraName + WasmX), Payload: types.Encode(payload), Fee: 1e5, Nonce: r.Int63(), To: crypto.GetExecAddress(paraName + WasmX)}
+	tx, err = sdk.Sign(tx, privKey, crypto.SM2, uid)
+	if err != nil {
+		return nil, err
+	}
+	tx.Signature.Signature = crypto.EncodeCertToSignature(tx.Signature.Signature, cert, uid)
+	return tx, nil
+}
+
+func CreateWasmCallTx(paraName, contract, method string, param []int64, env []string, privKey, cert, uid []byte) (*types.Transaction, error) {
+	payload := &types.WasmAction{
+		Ty: WasmActionCall,
+		Value: &types.WasmAction_Call{
+			Call: &types.WasmCall{
+				Contract:   contract,
+				Method:     method,
+				Parameters: param,
+				Env: env,
+			},
+		},
+	}
+	tx := &types.Transaction{Execer: []byte(paraName + WasmX), Payload: types.Encode(payload), Fee: 1e5, Nonce: r.Int63(), To: crypto.GetExecAddress(paraName + WasmX)}
+	var err error
+	tx, err = sdk.Sign(tx, privKey, crypto.SM2, uid)
+	if err != nil {
+		return nil, err
+	}
+	tx.Signature.Signature = crypto.EncodeCertToSignature(tx.Signature.Signature, cert, uid)
+	return tx, nil
+}

proto/wasm.proto

+syntax = "proto3";
+
+package types;
+
+message wasmAction {
+  oneof value {
+    wasmCreate create = 1;
+    wasmCall call = 2;
+  }
+  int32 ty = 3;
+}
+
+message wasmCreate {
+  string name = 1;
+  bytes code = 2;
+}
+
+message wasmCall {
+  string contract = 1;
+  string method = 2;
+  repeated int64 parameters = 3;
+  repeated string env = 4;
+}
+
+message queryCheckContract {
+  string name = 1;
+}
+
+message customLog {
+  repeated string info = 1;
+}
+
+message createContractLog {
+  string name = 1;
+  string code = 2;
+}
+
+message callContractLog {
+  string contract = 1;
+  string method = 2;
+  int32 result = 3;
+}
+
+message localDataLog {
+  bytes key = 1;
+  bytes value = 2;
+}
+