cerc-io/plugeth
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Merge branch 'poc-9' into develop

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This commit is contained in:
obscuren 2015-03-10 11:25:32 +01:00
commit c0a8e3cd34
5 changed files with 198 additions and 137 deletions
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43
cmd/ethereum/main.go
View File

@ -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())
}

41
cmd/utils/cmd.go
View File

@ -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
}

58
ethutil/natspec/natspec.go
View File

@ -1,24 +1,21 @@
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) {
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 expression = \"" + desc + "\";")
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) SetABI(abi string) (err error) {
_, err = self.jsvm.Run("var abi = " + abi + ";")
return
}
func (self *NatSpec) SetMethod(method string) (err error) {
_, err = self.jsvm.Run("var method = '" + method + "';")
return
}
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)
}
return value.String()
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)
}
if len(value.String()) == 0 {
return "", fmt.Errorf("natspec.js error evaluating expression")
}
return value.String(), nil
}

91
ethutil/natspec/natspec.js → ethutil/natspec/natspec_js.go
View File

@ -1,4 +1,6 @@
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
@ -291,26 +293,26 @@ if (process.env.NODE_ENV !== 'build') {
var BigNumber = require('bignumber.js'); // jshint ignore:line
}
var ETH_UNITS = [
'wei',
'Kwei',
'Mwei',
'Gwei',
'szabo',
'finney',
'ether',
'grand',
'Mether',
'Gether',
'Tether',
'Pether',
'Eether',
'Zether',
'Yether',
'Nether',
'Dether',
'Vether',
'Uether'
var ETH_UNITS = [
'wei',
'Kwei',
'Mwei',
'Gwei',
'szabo',
'finney',
'ether',
'grand',
'Mether',
'Gether',
'Tether',
'Pether',
'Eether',
'Zether',
'Yether',
'Nether',
'Dether',
'Vether',
'Uether'
];
module.exports = {
@ -375,7 +377,7 @@ var formatInputInt = function (value) {
BigNumber.config(c.ETH_BIGNUMBER_ROUNDING_MODE);
value = value.round();
if (value.lessThan(0))
if (value.lessThan(0))
value = new BigNumber("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 16).plus(value).plus(1);
value = value.toString(16);
}
@ -404,7 +406,7 @@ var formatInputBool = function (value) {
/// Values are multiplied by 2^m and encoded as integers
/// @returns byte representation of real
var formatInputReal = function (value) {
return formatInputInt(new BigNumber(value).times(new BigNumber(2).pow(128)));
return formatInputInt(new BigNumber(value).times(new BigNumber(2).pow(128)));
};
@ -436,12 +438,12 @@ var formatOutputUInt = function (value) {
/// @returns input bytes formatted to real
var formatOutputReal = function (value) {
return formatOutputInt(value).dividedBy(new BigNumber(2).pow(128));
return formatOutputInt(value).dividedBy(new BigNumber(2).pow(128));
};
/// @returns input bytes formatted to ureal
var formatOutputUReal = function (value) {
return formatOutputUInt(value).dividedBy(new BigNumber(2).pow(128));
return formatOutputUInt(value).dividedBy(new BigNumber(2).pow(128));
};
/// @returns right-aligned input bytes formatted to hex
@ -524,14 +526,14 @@ var namedType = function (name) {
};
/// Setups input formatters for solidity types
/// @returns an array of input formatters
/// @returns an array of input formatters
var inputTypes = function () {
return [
{ type: prefixedType('uint'), format: f.formatInputInt },
{ type: prefixedType('int'), format: f.formatInputInt },
{ type: prefixedType('hash'), format: f.formatInputInt },
{ type: prefixedType('string'), format: f.formatInputString },
{ type: prefixedType('string'), format: f.formatInputString },
{ type: prefixedType('real'), format: f.formatInputReal },
{ type: prefixedType('ureal'), format: f.formatInputReal },
{ type: namedType('address'), format: f.formatInputInt },
@ -620,7 +622,7 @@ var toAscii = function(hex) {
return str;
};
var toHex = function(str) {
var hex = "";
for(var i = 0; i < str.length; i++) {
@ -642,7 +644,7 @@ var fromAscii = function(str, pad) {
/// @returns display name for function/event eg. multiply(uint256) -> multiply
var extractDisplayName = function (name) {
var length = name.indexOf('(');
var length = name.indexOf('(');
return length !== -1 ? name.substr(0, length) : name;
};
@ -657,8 +659,8 @@ var extractTypeName = function (name) {
/// @returns abi array with filtered objects of type 'function'
var filterFunctions = function (json) {
return json.filter(function (current) {
return current.type === 'function';
});
return current.type === 'function';
});
};
/// Filters all events form input abi
@ -3404,7 +3406,7 @@ module.exports = {
* @date 2015
*/
var abi = require('./node_modules/ethereum.js/lib/abi.js');
var abi = require('./node_modules/ethereum.js/lib/abi.js');
/**
* This object should be used to evaluate natspec expression
@ -3418,7 +3420,7 @@ var natspec = (function () {
context[key] = obj[key];
});
}
/// generate codes, which will be evaluated
var generateCode = function (obj) {
return Object.keys(obj).reduce(function (acc, key) {
@ -3440,20 +3442,20 @@ var natspec = (function () {
/// @returns hashmap with all contract's method input variables
var getMethodInputParams = function (method, transaction) {
// do it with output formatter (cause we have to decode)
var params = abi.formatOutput(method.inputs, '0x' + transaction.params[0].data.slice(10));
var params = abi.formatOutput(method.inputs, '0x' + transaction.params[0].data.slice(10));
return method.inputs.reduce(function (acc, current, index) {
acc[current.name] = params[index];
return acc;
}, {});
};
/// Should be called to evaluate expression
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) {
@ -3464,9 +3466,9 @@ var natspec = (function () {
evaluatedExpression += evaluatedPart;
lastIndex = pattern.lastIndex;
}
evaluatedExpression += expression.slice(lastIndex);
return evaluatedExpression;
};
@ -3478,11 +3480,11 @@ var natspec = (function () {
var evaluateExpression = function (expression, call) {
//var self = this;
var context = {};
if (!!call) {
try {
var method = getMethodWithName(call.abi, call.method);
var params = getMethodInputParams(method, call.transaction);
var params = getMethodInputParams(method, call.transaction);
copyToContext(params, context);
}
catch (err) {
@ -3498,7 +3500,7 @@ var natspec = (function () {
return fn(context).toString();
}
catch (err) {
return 'undefined';
return 'undefined';
}
});
@ -3511,7 +3513,8 @@ var natspec = (function () {
})();
module.exports = natspec;
module.exports = natspec;
},{"./node_modules/ethereum.js/lib/abi.js":3}]},{},[]);
`

102
ethutil/natspec/natspec_test.go
View File

@ -6,41 +6,48 @@ import (
func TestNotice(t *testing.T) {
ns, err := NewNATSpec(`
tx := `
{
"jsonrpc": "2.0",
"method": "eth_call",
"params": [{
"to": "0x8521742d3f456bd237e312d6e30724960f72517a",
"data": "0xc6888fa1000000000000000000000000000000000000000000000000000000000000007a"
}],
"id": 6
}
`)
"jsonrpc": "2.0",
"method": "eth_call",
"params": [{
"to": "0x8521742d3f456bd237e312d6e30724960f72517a",
"data": "0xc6888fa1000000000000000000000000000000000000000000000000000000000000007a"
}],
"id": 6
}
`
abi := `
[{
"name": "multiply",
"constant": false,
"type": "function",
"inputs": [{
"name": "a",
"type": "uint256"
}],
"outputs": [{
"name": "d",
"type": "uint256"
}]
}]
`
desc := "Will multiply `a` by 7 and return `a * 7`."
method := "multiply"
ns, err := New()
if err != nil {
t.Errorf("NewNATSpec error %v", err)
}
ns.SetABI(`
[{
"name": "multiply",
"constant": false,
"type": "function",
"inputs": [{
"name": "a",
"type": "uint256"
}],
"outputs": [{
"name": "d",
"type": "uint256"
}]
}]
`)
ns.SetDescription("Will multiply `a` by 7 and return `a * 7`.")
ns.SetMethod("multiply")
notice, err := ns.Notice(tx, abi, method, desc)
notice := ns.Parse()
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)
}
}
}