Merge branch 'poc-9' into develop

cmd/ethereum/main.go

@@ -87,6 +87,11 @@ runtime will execute the file and exit.
 			Name:   "import",
 			Usage:  `import a blockchain file`,
 		},
+		{
+			Action: exportchain,
+			Name:   "export",
+			Usage:  `export blockchain into file`,
+		},
 	}
 	app.Author = ""
 	app.Email = ""
@@ -171,25 +176,39 @@ func importchain(ctx *cli.Context) {
 	if len(ctx.Args()) != 1 {
 		utils.Fatalf("This command requires an argument.")
 	}
-	chain, _, _ := utils.GetChain(ctx)
+	chainmgr, _, _ := utils.GetChain(ctx)
 	start := time.Now()
-	err := utils.ImportChain(chain, ctx.Args().First())
+	err := utils.ImportChain(chainmgr, ctx.Args().First())
 	if err != nil {
 		utils.Fatalf("Import error: %v\n", err)
 	}
-	fmt.Printf("Import done in", time.Since(start))
+	fmt.Printf("Import done in %v", time.Since(start))
+	return
+}
+
+func exportchain(ctx *cli.Context) {
+	if len(ctx.Args()) != 1 {
+		utils.Fatalf("This command requires an argument.")
+	}
+	chainmgr, _, _ := utils.GetChain(ctx)
+	start := time.Now()
+	err := utils.ExportChain(chainmgr, ctx.Args().First())
+	if err != nil {
+		utils.Fatalf("Export error: %v\n", err)
+	}
+	fmt.Printf("Export done in %v", time.Since(start))
 	return
 }
 
 func dump(ctx *cli.Context) {
-	chain, _, stateDb := utils.GetChain(ctx)
+	chainmgr, _, stateDb := utils.GetChain(ctx)
 	for _, arg := range ctx.Args() {
 		var block *types.Block
 		if hashish(arg) {
-			block = chain.GetBlock(ethutil.Hex2Bytes(arg))
+			block = chainmgr.GetBlock(ethutil.Hex2Bytes(arg))
 		} else {
 			num, _ := strconv.Atoi(arg)
-			block = chain.GetBlockByNumber(uint64(num))
+			block = chainmgr.GetBlockByNumber(uint64(num))
 		}
 		if block == nil {
 			fmt.Println("{}")
@@ -209,11 +228,13 @@ func hashish(x string) bool {
 }
 
 func version(c *cli.Context) {
-	fmt.Printf(`%v %v
-PV=%d
-GOOS=%s
-GO=%s
+	fmt.Printf(`%v
+Version: %v
+Protocol Version: %d
+Network Id: %d
+GO: %s
+OS: %s
 GOPATH=%s
 GOROOT=%s
-`, ClientIdentifier, Version, eth.ProtocolVersion, runtime.GOOS, runtime.Version(), os.Getenv("GOPATH"), runtime.GOROOT())
+`, ClientIdentifier, Version, eth.ProtocolVersion, eth.NetworkId, runtime.Version(), runtime.GOOS, os.Getenv("GOPATH"), runtime.GOROOT())
 }

cmd/utils/cmd.go

@@ -35,7 +35,6 @@ import (
 	"github.com/ethereum/go-ethereum/logger"
 	"github.com/ethereum/go-ethereum/rlp"
 	rpchttp "github.com/ethereum/go-ethereum/rpc/http"
-	"github.com/ethereum/go-ethereum/state"
 	"github.com/ethereum/go-ethereum/xeth"
 )
 
@@ -188,27 +187,8 @@ func FormatTransactionData(data string) []byte {
 	return d
 }
 
-// Replay block
-func BlockDo(ethereum *eth.Ethereum, hash []byte) error {
-	block := ethereum.ChainManager().GetBlock(hash)
-	if block == nil {
-		return fmt.Errorf("unknown block %x", hash)
-	}
-
-	parent := ethereum.ChainManager().GetBlock(block.ParentHash())
-
-	statedb := state.New(parent.Root(), ethereum.StateDb())
-	_, err := ethereum.BlockProcessor().TransitionState(statedb, parent, block, true)
-	if err != nil {
-		return err
-	}
-
-	return nil
-
-}
-
-func ImportChain(chain *core.ChainManager, fn string) error {
-	fmt.Printf("importing chain '%s'\n", fn)
+func ImportChain(chainmgr *core.ChainManager, fn string) error {
+	fmt.Printf("importing blockchain '%s'\n", fn)
 	fh, err := os.OpenFile(fn, os.O_RDONLY, os.ModePerm)
 	if err != nil {
 		return err
@@ -220,11 +200,24 @@ func ImportChain(chain *core.ChainManager, fn string) error {
 		return err
 	}
 
-	chain.Reset()
-	if err := chain.InsertChain(blocks); err != nil {
+	chainmgr.Reset()
+	if err := chainmgr.InsertChain(blocks); err != nil {
 		return err
 	}
 	fmt.Printf("imported %d blocks\n", len(blocks))
 
 	return nil
 }
+
+func ExportChain(chainmgr *core.ChainManager, fn string) error {
+	fmt.Printf("exporting blockchain '%s'\n", fn)
+
+	data := chainmgr.Export()
+
+	if err := ethutil.WriteFile(fn, data); err != nil {
+		return err
+	}
+	fmt.Printf("exported blockchain\n")
+
+	return nil
+}

ethutil/natspec/natspec.go

 package natspec
 
 import (
+	"fmt"
 	"github.com/obscuren/otto"
-	"io/ioutil"
 )
 
 type NatSpec struct {
 	jsvm *otto.Otto
 }
 
-func NewNATSpec(transaction string) (self *NatSpec, err error) {
+// TODO: should initialise with abi and userdoc jsons
+func New() (self *NatSpec, err error) {
 
 	self = new(NatSpec)
 	self.jsvm = otto.New()
-	code, err := ioutil.ReadFile("natspec.js")
-	if err != nil {
-		return
-	}
 
-	_, err = self.jsvm.Run(string(code))
+	_, err = self.jsvm.Run(natspecJS)
 	if err != nil {
 		return
 	}
@@ -27,39 +24,40 @@ func NewNATSpec(transaction string) (self *NatSpec, err error) {
 		return
 	}
 
-	self.jsvm.Run("var transaction = " + transaction + ";")
-
-	return
-}
-
-func (self *NatSpec) SetDescription(desc string) (err error) {
-
-	_, err = self.jsvm.Run("var expression = \"" + desc + "\";")
 	return
-
 }
 
-func (self *NatSpec) SetABI(abi string) (err error) {
-
-	_, err = self.jsvm.Run("var abi = " + abi + ";")
-	return
-
-}
-
-func (self *NatSpec) SetMethod(method string) (err error) {
+func (self *NatSpec) Notice(transaction, abi, method, expression string) (string, error) {
+	var err error
+	if _, err = self.jsvm.Run("var transaction = " + transaction + ";"); err != nil {
+		return "", fmt.Errorf("natspec.js error setting transaction: %v", err)
+	}
 
-	_, err = self.jsvm.Run("var method = '" + method + "';")
-	return
+	if _, err = self.jsvm.Run("var abi = " + abi + ";"); err != nil {
+		return "", fmt.Errorf("natspec.js error setting abi: %v", err)
+	}
 
-}
+	if _, err = self.jsvm.Run("var method = '" + method + "';"); err != nil {
+		return "", fmt.Errorf("natspec.js error setting method: %v", err)
+	}
 
-func (self *NatSpec) Parse() string {
+	if _, err = self.jsvm.Run("var expression = \"" + expression + "\";"); err != nil {
+		return "", fmt.Errorf("natspec.js error setting expression: %v", err)
+	}
 
 	self.jsvm.Run("var call = {method: method,abi: abi,transaction: transaction};")
 	value, err := self.jsvm.Run("natspec.evaluateExpression(expression, call);")
 	if err != nil {
-		return err.Error()
+		return "", fmt.Errorf("natspec.js error evaluating expression: %v", err)
+	}
+	evalError := "Natspec evaluation failed, wrong input params"
+	if value.String() == evalError {
+		return "", fmt.Errorf("natspec.js error evaluating expression: wrong input params in expression '%s'", expression)
 	}
-	return value.String()
+	if len(value.String()) == 0 {
+		return "", fmt.Errorf("natspec.js error evaluating expression")
+	}
+
+	return value.String(), nil
 
 }

ethutil/natspec/natspec.js → ethutil/natspec/natspec_js.go

-require=(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+package natspec
+
+const natspecJS = `require=(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
 
 },{}],2:[function(require,module,exports){
 // shim for using process in browser
@@ -3452,8 +3454,8 @@ var natspec = (function () {
     var mapExpressionsToEvaluate = function (expression, cb) {
         var evaluatedExpression = "";
 
-        // match everything in `` quotes
-        var pattern = /\`(?:\\.|[^`\\])*\`/gim
+        // match everything in backtick
+        var pattern = /\` + "`" + `(?:\\.|[^` + "`" + `\\])*\` + "`" + `/gim
         var match;
         var lastIndex = 0;
         while ((match = pattern.exec(expression)) !== null) {
@@ -3515,3 +3517,4 @@ module.exports = natspec;
 
 
 },{"./node_modules/ethereum.js/lib/abi.js":3}]},{},[]);
+`

ethutil/natspec/natspec_test.go

@@ -6,7 +6,7 @@ import (
 
 func TestNotice(t *testing.T) {
 
-	ns, err := NewNATSpec(`
+	tx := `
 	{
     "jsonrpc": "2.0",
     "method": "eth_call",
@@ -16,13 +16,9 @@ func TestNotice(t *testing.T) {
     }],
     "id": 6
   }
-	`)
+	`
 
-	if err != nil {
-		t.Errorf("NewNATSpec error %v", err)
-	}
-
-	ns.SetABI(`
+	abi := `
 	[{
     "name": "multiply",
     "constant": false,
@@ -36,11 +32,22 @@ func TestNotice(t *testing.T) {
       "type": "uint256"
     }]
   }]
-	`)
-	ns.SetDescription("Will multiply `a` by 7 and return `a * 7`.")
-	ns.SetMethod("multiply")
+	`
 
-	notice := ns.Parse()
+	desc := "Will multiply `a` by 7 and return `a * 7`."
+
+	method := "multiply"
+
+	ns, err := New()
+	if err != nil {
+		t.Errorf("NewNATSpec error %v", err)
+	}
+
+	notice, err := ns.Notice(tx, abi, method, desc)
+
+	if err != nil {
+		t.Errorf("expected no error got %v", err)
+	}
 
 	expected := "Will multiply 122 by 7 and return 854."
 	if notice != expected {
@@ -48,4 +55,43 @@ func TestNotice(t *testing.T) {
 	} else {
 		t.Logf("returned notice \"%v\"", notice)
 	}
+
+	notice, err = ns.Notice(tx, abi, method, "Will multiply 122 by \"7\" and return 854.")
+
+	expected = "natspec.js error setting expression: (anonymous): Line 1:41 Unexpected number"
+
+	if err == nil {
+		t.Errorf("expected error, got nothing (notice: '%v')", err, notice)
+	} else {
+		if err.Error() != expected {
+			t.Errorf("expected error '%s' got '%v' (notice: '%v')", expected, err, notice)
+		}
+	}
+
+	// https://github.com/ethereum/natspec.js/issues/1
+	// badDesc := "Will multiply `e` by 7 and return `a * 7`."
+	// notice, err = ns.Notice(tx, abi, method, badDesc)
+
+	// expected = "natspec.js error evaluating expression: wrong input param in expression ''"
+
+	// if err == nil {
+	// 	t.Errorf("expected error, got nothing (notice: '%v')", notice)
+	// } else {
+	// 	if err.Error() != expected {
+	// 		t.Errorf("expected error '%s' got '%v' (notice: '%v')", expected, err, notice)
+	// 	}
+	// }
+
+	notice, err = ns.Notice(tx, abi, "missing_method", desc)
+
+	expected = "natspec.js error evaluating expression: wrong input params in expression 'Will multiply `a` by 7 and return `a * 7`.'"
+
+	if err == nil {
+		t.Errorf("expected error, got nothing (notice: '%v')", notice)
+	} else {
+		if err.Error() != expected {
+			t.Errorf("expected error '%s' got '%v' (notice: '%v')", expected, err, notice)
+		}
+	}
+
 }