console, internal/jsre: use github.com/dop251/goja (#20470)
This replaces the JavaScript interpreter used by the console with goja, which is actively maintained and a lot faster than otto. Clef still uses otto and eth/tracers still uses duktape, so we are currently dependent on three different JS interpreters. We're looking to replace the remaining uses of otto soon though.
This commit is contained in:
Guillaume Ballet
committed by
Felix Lange
Felix Lange
parent
60deeb103e
commit
7b68975a00
@ -20,14 +20,16 @@ import (
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"encoding/json"
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"fmt"
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"io"
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"reflect"
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"strings"
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"time"
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"github.com/dop251/goja"
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"github.com/ethereum/go-ethereum/accounts/scwallet"
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"github.com/ethereum/go-ethereum/accounts/usbwallet"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/common/hexutil"
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"github.com/ethereum/go-ethereum/internal/jsre"
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"github.com/ethereum/go-ethereum/rpc"
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"github.com/robertkrimen/otto"
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)
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// bridge is a collection of JavaScript utility methods to bride the .js runtime
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@ -47,10 +49,18 @@ func newBridge(client *rpc.Client, prompter UserPrompter, printer io.Writer) *br
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}
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}
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func getJeth(vm *goja.Runtime) *goja.Object {
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jeth := vm.Get("jeth")
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if jeth == nil {
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panic(vm.ToValue("jeth object does not exist"))
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}
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return jeth.ToObject(vm)
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}
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// NewAccount is a wrapper around the personal.newAccount RPC method that uses a
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// non-echoing password prompt to acquire the passphrase and executes the original
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// RPC method (saved in jeth.newAccount) with it to actually execute the RPC call.
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func (b *bridge) NewAccount(call otto.FunctionCall) (response otto.Value) {
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func (b *bridge) NewAccount(call jsre.Call) (goja.Value, error) {
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var (
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password string
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confirm string
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@ -58,52 +68,57 @@ func (b *bridge) NewAccount(call otto.FunctionCall) (response otto.Value) {
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)
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switch {
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// No password was specified, prompt the user for it
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case len(call.ArgumentList) == 0:
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if password, err = b.prompter.PromptPassword("Password: "); err != nil {
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throwJSException(err.Error())
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case len(call.Arguments) == 0:
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if password, err = b.prompter.PromptPassword("Passphrase: "); err != nil {
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return nil, err
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}
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if confirm, err = b.prompter.PromptPassword("Repeat password: "); err != nil {
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throwJSException(err.Error())
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if confirm, err = b.prompter.PromptPassword("Repeat passphrase: "); err != nil {
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return nil, err
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}
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if password != confirm {
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throwJSException("passwords don't match!")
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return nil, fmt.Errorf("passwords don't match!")
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}
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// A single string password was specified, use that
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case len(call.ArgumentList) == 1 && call.Argument(0).IsString():
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password, _ = call.Argument(0).ToString()
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// Otherwise fail with some error
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case len(call.Arguments) == 1 && call.Argument(0).ToString() != nil:
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password = call.Argument(0).ToString().String()
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default:
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throwJSException("expected 0 or 1 string argument")
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return nil, fmt.Errorf("expected 0 or 1 string argument")
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}
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// Password acquired, execute the call and return
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ret, err := call.Otto.Call("jeth.newAccount", nil, password)
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if err != nil {
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throwJSException(err.Error())
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newAccount, callable := goja.AssertFunction(getJeth(call.VM).Get("newAccount"))
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if !callable {
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return nil, fmt.Errorf("jeth.newAccount is not callable")
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}
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return ret
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ret, err := newAccount(goja.Null(), call.VM.ToValue(password))
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if err != nil {
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return nil, err
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}
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return ret, nil
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}
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// OpenWallet is a wrapper around personal.openWallet which can interpret and
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// react to certain error messages, such as the Trezor PIN matrix request.
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func (b *bridge) OpenWallet(call otto.FunctionCall) (response otto.Value) {
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func (b *bridge) OpenWallet(call jsre.Call) (goja.Value, error) {
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// Make sure we have a wallet specified to open
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if !call.Argument(0).IsString() {
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throwJSException("first argument must be the wallet URL to open")
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if call.Argument(0).ToObject(call.VM).ClassName() != "String" {
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return nil, fmt.Errorf("first argument must be the wallet URL to open")
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}
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wallet := call.Argument(0)
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var passwd otto.Value
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if call.Argument(1).IsUndefined() || call.Argument(1).IsNull() {
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passwd, _ = otto.ToValue("")
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var passwd goja.Value
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if goja.IsUndefined(call.Argument(1)) || goja.IsNull(call.Argument(1)) {
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passwd = call.VM.ToValue("")
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} else {
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passwd = call.Argument(1)
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}
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// Open the wallet and return if successful in itself
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val, err := call.Otto.Call("jeth.openWallet", nil, wallet, passwd)
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openWallet, callable := goja.AssertFunction(getJeth(call.VM).Get("openWallet"))
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if !callable {
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return nil, fmt.Errorf("jeth.openWallet is not callable")
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}
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val, err := openWallet(goja.Null(), wallet, passwd)
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if err == nil {
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return val
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return val, nil
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}
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// Wallet open failed, report error unless it's a PIN or PUK entry
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@ -111,32 +126,31 @@ func (b *bridge) OpenWallet(call otto.FunctionCall) (response otto.Value) {
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case strings.HasSuffix(err.Error(), usbwallet.ErrTrezorPINNeeded.Error()):
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val, err = b.readPinAndReopenWallet(call)
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if err == nil {
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return val
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return val, nil
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}
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val, err = b.readPassphraseAndReopenWallet(call)
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if err != nil {
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throwJSException(err.Error())
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return nil, err
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}
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case strings.HasSuffix(err.Error(), scwallet.ErrPairingPasswordNeeded.Error()):
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// PUK input requested, fetch from the user and call open again
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if input, err := b.prompter.PromptPassword("Please enter the pairing password: "); err != nil {
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throwJSException(err.Error())
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} else {
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passwd, _ = otto.ToValue(input)
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input, err := b.prompter.PromptPassword("Please enter the pairing password: ")
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if err != nil {
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return nil, err
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}
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if val, err = call.Otto.Call("jeth.openWallet", nil, wallet, passwd); err != nil {
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passwd = call.VM.ToValue(input)
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if val, err = openWallet(goja.Null(), wallet, passwd); err != nil {
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if !strings.HasSuffix(err.Error(), scwallet.ErrPINNeeded.Error()) {
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throwJSException(err.Error())
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return nil, err
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} else {
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// PIN input requested, fetch from the user and call open again
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if input, err := b.prompter.PromptPassword("Please enter current PIN: "); err != nil {
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throwJSException(err.Error())
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} else {
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passwd, _ = otto.ToValue(input)
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input, err := b.prompter.PromptPassword("Please enter current PIN: ")
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if err != nil {
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return nil, err
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}
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if val, err = call.Otto.Call("jeth.openWallet", nil, wallet, passwd); err != nil {
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throwJSException(err.Error())
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if val, err = openWallet(goja.Null(), wallet, call.VM.ToValue(input)); err != nil {
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return nil, err
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}
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}
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}
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@ -144,52 +158,52 @@ func (b *bridge) OpenWallet(call otto.FunctionCall) (response otto.Value) {
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case strings.HasSuffix(err.Error(), scwallet.ErrPINUnblockNeeded.Error()):
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// PIN unblock requested, fetch PUK and new PIN from the user
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var pukpin string
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if input, err := b.prompter.PromptPassword("Please enter current PUK: "); err != nil {
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throwJSException(err.Error())
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} else {
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pukpin = input
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input, err := b.prompter.PromptPassword("Please enter current PUK: ")
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if err != nil {
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return nil, err
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}
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if input, err := b.prompter.PromptPassword("Please enter new PIN: "); err != nil {
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throwJSException(err.Error())
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} else {
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pukpin += input
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pukpin = input
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input, err = b.prompter.PromptPassword("Please enter new PIN: ")
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if err != nil {
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return nil, err
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}
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passwd, _ = otto.ToValue(pukpin)
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if val, err = call.Otto.Call("jeth.openWallet", nil, wallet, passwd); err != nil {
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throwJSException(err.Error())
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pukpin += input
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if val, err = openWallet(goja.Null(), wallet, call.VM.ToValue(pukpin)); err != nil {
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return nil, err
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}
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case strings.HasSuffix(err.Error(), scwallet.ErrPINNeeded.Error()):
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// PIN input requested, fetch from the user and call open again
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if input, err := b.prompter.PromptPassword("Please enter current PIN: "); err != nil {
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throwJSException(err.Error())
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} else {
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passwd, _ = otto.ToValue(input)
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input, err := b.prompter.PromptPassword("Please enter current PIN: ")
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if err != nil {
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return nil, err
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}
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if val, err = call.Otto.Call("jeth.openWallet", nil, wallet, passwd); err != nil {
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throwJSException(err.Error())
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if val, err = openWallet(goja.Null(), wallet, call.VM.ToValue(input)); err != nil {
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return nil, err
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}
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default:
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// Unknown error occurred, drop to the user
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throwJSException(err.Error())
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return nil, err
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}
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return val
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return val, nil
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}
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func (b *bridge) readPassphraseAndReopenWallet(call otto.FunctionCall) (otto.Value, error) {
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var passwd otto.Value
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func (b *bridge) readPassphraseAndReopenWallet(call jsre.Call) (goja.Value, error) {
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wallet := call.Argument(0)
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if input, err := b.prompter.PromptPassword("Please enter your password: "); err != nil {
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throwJSException(err.Error())
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} else {
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passwd, _ = otto.ToValue(input)
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input, err := b.prompter.PromptPassword("Please enter your passphrase: ")
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if err != nil {
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return nil, err
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}
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return call.Otto.Call("jeth.openWallet", nil, wallet, passwd)
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openWallet, callable := goja.AssertFunction(getJeth(call.VM).Get("openWallet"))
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if !callable {
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return nil, fmt.Errorf("jeth.openWallet is not callable")
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}
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return openWallet(goja.Null(), wallet, call.VM.ToValue(input))
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}
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func (b *bridge) readPinAndReopenWallet(call otto.FunctionCall) (otto.Value, error) {
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var passwd otto.Value
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func (b *bridge) readPinAndReopenWallet(call jsre.Call) (goja.Value, error) {
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wallet := call.Argument(0)
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// Trezor PIN matrix input requested, display the matrix to the user and fetch the data
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fmt.Fprintf(b.printer, "Look at the device for number positions\n\n")
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@ -199,155 +213,154 @@ func (b *bridge) readPinAndReopenWallet(call otto.FunctionCall) (otto.Value, err
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fmt.Fprintf(b.printer, "--+---+--\n")
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fmt.Fprintf(b.printer, "1 | 2 | 3\n\n")
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if input, err := b.prompter.PromptPassword("Please enter current PIN: "); err != nil {
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throwJSException(err.Error())
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} else {
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passwd, _ = otto.ToValue(input)
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input, err := b.prompter.PromptPassword("Please enter current PIN: ")
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if err != nil {
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return nil, err
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}
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return call.Otto.Call("jeth.openWallet", nil, wallet, passwd)
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openWallet, callable := goja.AssertFunction(getJeth(call.VM).Get("openWallet"))
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if !callable {
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return nil, fmt.Errorf("jeth.openWallet is not callable")
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}
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return openWallet(goja.Null(), wallet, call.VM.ToValue(input))
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}
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// UnlockAccount is a wrapper around the personal.unlockAccount RPC method that
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// uses a non-echoing password prompt to acquire the passphrase and executes the
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// original RPC method (saved in jeth.unlockAccount) with it to actually execute
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// the RPC call.
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func (b *bridge) UnlockAccount(call otto.FunctionCall) (response otto.Value) {
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// Make sure we have an account specified to unlock
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if !call.Argument(0).IsString() {
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throwJSException("first argument must be the account to unlock")
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func (b *bridge) UnlockAccount(call jsre.Call) (goja.Value, error) {
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// Make sure we have an account specified to unlock.
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if call.Argument(0).ExportType().Kind() != reflect.String {
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return nil, fmt.Errorf("first argument must be the account to unlock")
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}
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account := call.Argument(0)
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// If password is not given or is the null value, prompt the user for it
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var passwd otto.Value
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if call.Argument(1).IsUndefined() || call.Argument(1).IsNull() {
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// If password is not given or is the null value, prompt the user for it.
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var passwd goja.Value
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if goja.IsUndefined(call.Argument(1)) || goja.IsNull(call.Argument(1)) {
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fmt.Fprintf(b.printer, "Unlock account %s\n", account)
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if input, err := b.prompter.PromptPassword("Password: "); err != nil {
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throwJSException(err.Error())
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} else {
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passwd, _ = otto.ToValue(input)
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input, err := b.prompter.PromptPassword("Passphrase: ")
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if err != nil {
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return nil, err
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}
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passwd = call.VM.ToValue(input)
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} else {
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if !call.Argument(1).IsString() {
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throwJSException("password must be a string")
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if call.Argument(1).ExportType().Kind() != reflect.String {
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return nil, fmt.Errorf("password must be a string")
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}
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passwd = call.Argument(1)
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}
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// Third argument is the duration how long the account must be unlocked.
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duration := otto.NullValue()
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if call.Argument(2).IsDefined() && !call.Argument(2).IsNull() {
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if !call.Argument(2).IsNumber() {
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throwJSException("unlock duration must be a number")
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// Third argument is the duration how long the account should be unlocked.
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duration := goja.Null()
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if !goja.IsUndefined(call.Argument(2)) && !goja.IsNull(call.Argument(2)) {
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if !isNumber(call.Argument(2)) {
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return nil, fmt.Errorf("unlock duration must be a number")
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}
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duration = call.Argument(2)
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}
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// Send the request to the backend and return
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val, err := call.Otto.Call("jeth.unlockAccount", nil, account, passwd, duration)
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if err != nil {
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throwJSException(err.Error())
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// Send the request to the backend and return.
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unlockAccount, callable := goja.AssertFunction(getJeth(call.VM).Get("unlockAccount"))
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if !callable {
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return nil, fmt.Errorf("jeth.unlockAccount is not callable")
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}
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return val
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return unlockAccount(goja.Null(), account, passwd, duration)
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}
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// Sign is a wrapper around the personal.sign RPC method that uses a non-echoing password
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// prompt to acquire the passphrase and executes the original RPC method (saved in
|
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// jeth.sign) with it to actually execute the RPC call.
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func (b *bridge) Sign(call otto.FunctionCall) (response otto.Value) {
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func (b *bridge) Sign(call jsre.Call) (goja.Value, error) {
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var (
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message = call.Argument(0)
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account = call.Argument(1)
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passwd = call.Argument(2)
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)
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if !message.IsString() {
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throwJSException("first argument must be the message to sign")
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if message.ExportType().Kind() != reflect.String {
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return nil, fmt.Errorf("first argument must be the message to sign")
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}
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if !account.IsString() {
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throwJSException("second argument must be the account to sign with")
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if account.ExportType().Kind() != reflect.String {
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return nil, fmt.Errorf("second argument must be the account to sign with")
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}
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// if the password is not given or null ask the user and ensure password is a string
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if passwd.IsUndefined() || passwd.IsNull() {
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if goja.IsUndefined(passwd) || goja.IsNull(passwd) {
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fmt.Fprintf(b.printer, "Give password for account %s\n", account)
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if input, err := b.prompter.PromptPassword("Password: "); err != nil {
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throwJSException(err.Error())
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} else {
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passwd, _ = otto.ToValue(input)
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input, err := b.prompter.PromptPassword("Password: ")
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if err != nil {
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return nil, err
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}
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}
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if !passwd.IsString() {
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throwJSException("third argument must be the password to unlock the account")
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passwd = call.VM.ToValue(input)
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} else if passwd.ExportType().Kind() != reflect.String {
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return nil, fmt.Errorf("third argument must be the password to unlock the account")
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}
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// Send the request to the backend and return
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val, err := call.Otto.Call("jeth.sign", nil, message, account, passwd)
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if err != nil {
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throwJSException(err.Error())
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sign, callable := goja.AssertFunction(getJeth(call.VM).Get("unlockAccount"))
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if !callable {
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return nil, fmt.Errorf("jeth.unlockAccount is not callable")
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}
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return val
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return sign(goja.Null(), message, account, passwd)
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}
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// Sleep will block the console for the specified number of seconds.
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func (b *bridge) Sleep(call otto.FunctionCall) (response otto.Value) {
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if call.Argument(0).IsNumber() {
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sleep, _ := call.Argument(0).ToInteger()
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time.Sleep(time.Duration(sleep) * time.Second)
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return otto.TrueValue()
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func (b *bridge) Sleep(call jsre.Call) (goja.Value, error) {
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if !isNumber(call.Argument(0)) {
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return nil, fmt.Errorf("usage: sleep(<number of seconds>)")
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}
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return throwJSException("usage: sleep(<number of seconds>)")
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sleep := call.Argument(0).ToFloat()
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time.Sleep(time.Duration(sleep * float64(time.Second)))
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return call.VM.ToValue(true), nil
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}
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|
||||
// SleepBlocks will block the console for a specified number of new blocks optionally
|
||||
// until the given timeout is reached.
|
||||
func (b *bridge) SleepBlocks(call otto.FunctionCall) (response otto.Value) {
|
||||
func (b *bridge) SleepBlocks(call jsre.Call) (goja.Value, error) {
|
||||
// Parse the input parameters for the sleep.
|
||||
var (
|
||||
blocks = int64(0)
|
||||
sleep = int64(9999999999999999) // indefinitely
|
||||
)
|
||||
// Parse the input parameters for the sleep
|
||||
nArgs := len(call.ArgumentList)
|
||||
nArgs := len(call.Arguments)
|
||||
if nArgs == 0 {
|
||||
throwJSException("usage: sleepBlocks(<n blocks>[, max sleep in seconds])")
|
||||
return nil, fmt.Errorf("usage: sleepBlocks(<n blocks>[, max sleep in seconds])")
|
||||
}
|
||||
if nArgs >= 1 {
|
||||
if call.Argument(0).IsNumber() {
|
||||
blocks, _ = call.Argument(0).ToInteger()
|
||||
} else {
|
||||
throwJSException("expected number as first argument")
|
||||
if !isNumber(call.Argument(0)) {
|
||||
return nil, fmt.Errorf("expected number as first argument")
|
||||
}
|
||||
blocks = call.Argument(0).ToInteger()
|
||||
}
|
||||
if nArgs >= 2 {
|
||||
if call.Argument(1).IsNumber() {
|
||||
sleep, _ = call.Argument(1).ToInteger()
|
||||
} else {
|
||||
throwJSException("expected number as second argument")
|
||||
if isNumber(call.Argument(1)) {
|
||||
return nil, fmt.Errorf("expected number as second argument")
|
||||
}
|
||||
sleep = call.Argument(1).ToInteger()
|
||||
}
|
||||
// go through the console, this will allow web3 to call the appropriate
|
||||
// callbacks if a delayed response or notification is received.
|
||||
blockNumber := func() int64 {
|
||||
result, err := call.Otto.Run("eth.blockNumber")
|
||||
if err != nil {
|
||||
throwJSException(err.Error())
|
||||
}
|
||||
block, err := result.ToInteger()
|
||||
if err != nil {
|
||||
throwJSException(err.Error())
|
||||
}
|
||||
return block
|
||||
}
|
||||
// Poll the current block number until either it ot a timeout is reached
|
||||
targetBlockNr := blockNumber() + blocks
|
||||
deadline := time.Now().Add(time.Duration(sleep) * time.Second)
|
||||
|
||||
// Poll the current block number until either it or a timeout is reached.
|
||||
var (
|
||||
deadline = time.Now().Add(time.Duration(sleep) * time.Second)
|
||||
lastNumber = ^hexutil.Uint64(0)
|
||||
)
|
||||
for time.Now().Before(deadline) {
|
||||
if blockNumber() >= targetBlockNr {
|
||||
return otto.TrueValue()
|
||||
var number hexutil.Uint64
|
||||
err := b.client.Call(&number, "eth_blockNumber")
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if number != lastNumber {
|
||||
lastNumber = number
|
||||
blocks--
|
||||
}
|
||||
if blocks <= 0 {
|
||||
break
|
||||
}
|
||||
time.Sleep(time.Second)
|
||||
}
|
||||
return otto.FalseValue()
|
||||
return call.VM.ToValue(true), nil
|
||||
}
|
||||
|
||||
type jsonrpcCall struct {
|
||||
@ -357,15 +370,15 @@ type jsonrpcCall struct {
|
||||
}
|
||||
|
||||
// Send implements the web3 provider "send" method.
|
||||
func (b *bridge) Send(call otto.FunctionCall) (response otto.Value) {
|
||||
func (b *bridge) Send(call jsre.Call) (goja.Value, error) {
|
||||
// Remarshal the request into a Go value.
|
||||
JSON, _ := call.Otto.Object("JSON")
|
||||
reqVal, err := JSON.Call("stringify", call.Argument(0))
|
||||
reqVal, err := call.Argument(0).ToObject(call.VM).MarshalJSON()
|
||||
if err != nil {
|
||||
throwJSException(err.Error())
|
||||
return nil, err
|
||||
}
|
||||
|
||||
var (
|
||||
rawReq = reqVal.String()
|
||||
rawReq = string(reqVal)
|
||||
dec = json.NewDecoder(strings.NewReader(rawReq))
|
||||
reqs []jsonrpcCall
|
||||
batch bool
|
||||
@ -381,10 +394,12 @@ func (b *bridge) Send(call otto.FunctionCall) (response otto.Value) {
|
||||
}
|
||||
|
||||
// Execute the requests.
|
||||
resps, _ := call.Otto.Object("new Array()")
|
||||
var resps []*goja.Object
|
||||
for _, req := range reqs {
|
||||
resp, _ := call.Otto.Object(`({"jsonrpc":"2.0"})`)
|
||||
resp := call.VM.NewObject()
|
||||
resp.Set("jsonrpc", "2.0")
|
||||
resp.Set("id", req.ID)
|
||||
|
||||
var result json.RawMessage
|
||||
err = b.client.Call(&result, req.Method, req.Params...)
|
||||
switch err := err.(type) {
|
||||
@ -392,9 +407,14 @@ func (b *bridge) Send(call otto.FunctionCall) (response otto.Value) {
|
||||
if result == nil {
|
||||
// Special case null because it is decoded as an empty
|
||||
// raw message for some reason.
|
||||
resp.Set("result", otto.NullValue())
|
||||
resp.Set("result", goja.Null())
|
||||
} else {
|
||||
resultVal, err := JSON.Call("parse", string(result))
|
||||
JSON := call.VM.Get("JSON").ToObject(call.VM)
|
||||
parse, callable := goja.AssertFunction(JSON.Get("parse"))
|
||||
if !callable {
|
||||
return nil, fmt.Errorf("JSON.parse is not a function")
|
||||
}
|
||||
resultVal, err := parse(goja.Null(), call.VM.ToValue(string(result)))
|
||||
if err != nil {
|
||||
setError(resp, -32603, err.Error())
|
||||
} else {
|
||||
@ -406,33 +426,38 @@ func (b *bridge) Send(call otto.FunctionCall) (response otto.Value) {
|
||||
default:
|
||||
setError(resp, -32603, err.Error())
|
||||
}
|
||||
resps.Call("push", resp)
|
||||
resps = append(resps, resp)
|
||||
}
|
||||
|
||||
// Return the responses either to the callback (if supplied)
|
||||
// or directly as the return value.
|
||||
var result goja.Value
|
||||
if batch {
|
||||
response = resps.Value()
|
||||
result = call.VM.ToValue(resps)
|
||||
} else {
|
||||
response, _ = resps.Get("0")
|
||||
result = resps[0]
|
||||
}
|
||||
if fn := call.Argument(1); fn.Class() == "Function" {
|
||||
fn.Call(otto.NullValue(), otto.NullValue(), response)
|
||||
return otto.UndefinedValue()
|
||||
if fn, isFunc := goja.AssertFunction(call.Argument(1)); isFunc {
|
||||
fn(goja.Null(), goja.Null(), result)
|
||||
return goja.Undefined(), nil
|
||||
}
|
||||
return response
|
||||
return result, nil
|
||||
}
|
||||
|
||||
func setError(resp *otto.Object, code int, msg string) {
|
||||
func setError(resp *goja.Object, code int, msg string) {
|
||||
resp.Set("error", map[string]interface{}{"code": code, "message": msg})
|
||||
}
|
||||
|
||||
// throwJSException panics on an otto.Value. The Otto VM will recover from the
|
||||
// Go panic and throw msg as a JavaScript error.
|
||||
func throwJSException(msg interface{}) otto.Value {
|
||||
val, err := otto.ToValue(msg)
|
||||
if err != nil {
|
||||
log.Error("Failed to serialize JavaScript exception", "exception", msg, "err", err)
|
||||
}
|
||||
panic(val)
|
||||
// isNumber returns true if input value is a JS number.
|
||||
func isNumber(v goja.Value) bool {
|
||||
k := v.ExportType().Kind()
|
||||
return k >= reflect.Int && k <= reflect.Float64
|
||||
}
|
||||
|
||||
func getObject(vm *goja.Runtime, name string) *goja.Object {
|
||||
v := vm.Get(name)
|
||||
if v == nil {
|
||||
return nil
|
||||
}
|
||||
return v.ToObject(vm)
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user