From ffaf58f0a98bd987bbe76e8669bb22c405dcd62a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= Date: Fri, 6 May 2016 12:40:23 +0300 Subject: [PATCH] cmd, console: split off the console into a reusable package --- cmd/geth/accountcmd.go | 5 +- cmd/geth/chaincmd.go | 3 +- cmd/geth/consolecmd.go | 167 +++++++ cmd/geth/consolecmd_test.go | 152 +++++++ cmd/geth/js.go | 424 ----------------- cmd/geth/js_test.go | 500 --------------------- cmd/geth/main.go | 140 +----- cmd/geth/run_test.go | 9 +- cmd/geth/usage.go | 2 +- cmd/utils/flags.go | 19 +- cmd/utils/input.go | 98 ---- cmd/utils/jeth.go | 301 ------------- console/bridge.go | 317 +++++++++++++ console/console.go | 369 +++++++++++++++ console/console_test.go | 283 ++++++++++++ console/prompter.go | 156 +++++++ console/testdata/exec.js | 1 + console/testdata/preload.js | 1 + {jsre => internal/jsre}/bignumber_js.go | 0 {jsre => internal/jsre}/completion.go | 0 {jsre => internal/jsre}/completion_test.go | 3 +- {jsre => internal/jsre}/ethereum_js.go | 0 {jsre => internal/jsre}/jsre.go | 25 +- {jsre => internal/jsre}/jsre_test.go | 4 +- {jsre => internal/jsre}/pretty.go | 74 +-- rpc/json.go | 14 +- 26 files changed, 1548 insertions(+), 1519 deletions(-) create mode 100644 cmd/geth/consolecmd.go create mode 100644 cmd/geth/consolecmd_test.go delete mode 100644 cmd/geth/js.go delete mode 100644 cmd/geth/js_test.go delete mode 100644 cmd/utils/input.go delete mode 100644 cmd/utils/jeth.go create mode 100644 console/bridge.go create mode 100644 console/console.go create mode 100644 console/console_test.go create mode 100644 console/prompter.go create mode 100644 console/testdata/exec.js create mode 100644 console/testdata/preload.js rename {jsre => internal/jsre}/bignumber_js.go (100%) rename {jsre => internal/jsre}/completion.go (100%) rename {jsre => internal/jsre}/completion_test.go (98%) rename {jsre => internal/jsre}/ethereum_js.go (100%) rename {jsre => internal/jsre}/jsre.go (95%) rename {jsre => internal/jsre}/jsre_test.go (98%) rename {jsre => internal/jsre}/pretty.go (77%) diff --git a/cmd/geth/accountcmd.go b/cmd/geth/accountcmd.go index bf754c72f..a9cee20ee 100644 --- a/cmd/geth/accountcmd.go +++ b/cmd/geth/accountcmd.go @@ -23,6 +23,7 @@ import ( "github.com/codegangsta/cli" "github.com/ethereum/go-ethereum/accounts" "github.com/ethereum/go-ethereum/cmd/utils" + "github.com/ethereum/go-ethereum/console" "github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/logger" "github.com/ethereum/go-ethereum/logger/glog" @@ -215,12 +216,12 @@ func getPassPhrase(prompt string, confirmation bool, i int, passwords []string) if prompt != "" { fmt.Println(prompt) } - password, err := utils.Stdin.PasswordPrompt("Passphrase: ") + password, err := console.TerminalPrompter.PromptPassword("Passphrase: ") if err != nil { utils.Fatalf("Failed to read passphrase: %v", err) } if confirmation { - confirm, err := utils.Stdin.PasswordPrompt("Repeat passphrase: ") + confirm, err := console.TerminalPrompter.PromptPassword("Repeat passphrase: ") if err != nil { utils.Fatalf("Failed to read passphrase confirmation: %v", err) } diff --git a/cmd/geth/chaincmd.go b/cmd/geth/chaincmd.go index 32eacc99e..457dbcfff 100644 --- a/cmd/geth/chaincmd.go +++ b/cmd/geth/chaincmd.go @@ -26,6 +26,7 @@ import ( "github.com/codegangsta/cli" "github.com/ethereum/go-ethereum/cmd/utils" "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/console" "github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/core/state" "github.com/ethereum/go-ethereum/core/types" @@ -116,7 +117,7 @@ func exportChain(ctx *cli.Context) { } func removeDB(ctx *cli.Context) { - confirm, err := utils.Stdin.ConfirmPrompt("Remove local database?") + confirm, err := console.TerminalPrompter.PromptConfirm("Remove local database?") if err != nil { utils.Fatalf("%v", err) } diff --git a/cmd/geth/consolecmd.go b/cmd/geth/consolecmd.go new file mode 100644 index 000000000..8bfe27fef --- /dev/null +++ b/cmd/geth/consolecmd.go @@ -0,0 +1,167 @@ +// Copyright 2016 The go-ethereum Authors +// This file is part of go-ethereum. +// +// go-ethereum is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// go-ethereum is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with go-ethereum. If not, see . + +package main + +import ( + "os" + "os/signal" + + "github.com/codegangsta/cli" + "github.com/ethereum/go-ethereum/cmd/utils" + "github.com/ethereum/go-ethereum/console" +) + +var ( + consoleCommand = cli.Command{ + Action: localConsole, + Name: "console", + Usage: `Geth Console: interactive JavaScript environment`, + Description: ` +The Geth console is an interactive shell for the JavaScript runtime environment +which exposes a node admin interface as well as the Ðapp JavaScript API. +See https://github.com/ethereum/go-ethereum/wiki/Javascipt-Console +`, + } + attachCommand = cli.Command{ + Action: remoteConsole, + Name: "attach", + Usage: `Geth Console: interactive JavaScript environment (connect to node)`, + Description: ` +The Geth console is an interactive shell for the JavaScript runtime environment +which exposes a node admin interface as well as the Ðapp JavaScript API. +See https://github.com/ethereum/go-ethereum/wiki/Javascipt-Console. +This command allows to open a console on a running geth node. + `, + } + javascriptCommand = cli.Command{ + Action: ephemeralConsole, + Name: "js", + Usage: `executes the given JavaScript files in the Geth JavaScript VM`, + Description: ` +The JavaScript VM exposes a node admin interface as well as the Ðapp +JavaScript API. See https://github.com/ethereum/go-ethereum/wiki/Javascipt-Console +`, + } +) + +// localConsole starts a new geth node, attaching a JavaScript console to it at the +// same time. +func localConsole(ctx *cli.Context) { + // Create and start the node based on the CLI flags + node := utils.MakeSystemNode(clientIdentifier, verString, relConfig, makeDefaultExtra(), ctx) + startNode(ctx, node) + defer node.Stop() + + // Attach to the newly started node and start the JavaScript console + client, err := node.Attach() + if err != nil { + utils.Fatalf("Failed to attach to the inproc geth: %v", err) + } + config := console.Config{ + DataDir: node.DataDir(), + DocRoot: ctx.GlobalString(utils.JSpathFlag.Name), + Client: client, + Preload: utils.MakeConsolePreloads(ctx), + } + console, err := console.New(config) + if err != nil { + utils.Fatalf("Failed to start the JavaScript console: %v", err) + } + defer console.Stop(false) + + // If only a short execution was requested, evaluate and return + if script := ctx.GlobalString(utils.ExecFlag.Name); script != "" { + console.Evaluate(script) + return + } + // Otherwise print the welcome screen and enter interactive mode + console.Welcome() + console.Interactive() +} + +// remoteConsole will connect to a remote geth instance, attaching a JavaScript +// console to it. +func remoteConsole(ctx *cli.Context) { + // Attach to a remotely running geth instance and start the JavaScript console + client, err := utils.NewRemoteRPCClient(ctx) + if err != nil { + utils.Fatalf("Unable to attach to remote geth: %v", err) + } + config := console.Config{ + DataDir: utils.MustMakeDataDir(ctx), + DocRoot: ctx.GlobalString(utils.JSpathFlag.Name), + Client: client, + Preload: utils.MakeConsolePreloads(ctx), + } + console, err := console.New(config) + if err != nil { + utils.Fatalf("Failed to start the JavaScript console: %v", err) + } + defer console.Stop(false) + + // If only a short execution was requested, evaluate and return + if script := ctx.GlobalString(utils.ExecFlag.Name); script != "" { + console.Evaluate(script) + return + } + // Otherwise print the welcome screen and enter interactive mode + console.Welcome() + console.Interactive() +} + +// ephemeralConsole starts a new geth node, attaches an ephemeral JavaScript +// console to it, and each of the files specified as arguments and tears the +// everything down. +func ephemeralConsole(ctx *cli.Context) { + // Create and start the node based on the CLI flags + node := utils.MakeSystemNode(clientIdentifier, verString, relConfig, makeDefaultExtra(), ctx) + startNode(ctx, node) + defer node.Stop() + + // Attach to the newly started node and start the JavaScript console + client, err := node.Attach() + if err != nil { + utils.Fatalf("Failed to attach to the inproc geth: %v", err) + } + config := console.Config{ + DataDir: node.DataDir(), + DocRoot: ctx.GlobalString(utils.JSpathFlag.Name), + Client: client, + Preload: utils.MakeConsolePreloads(ctx), + } + console, err := console.New(config) + if err != nil { + utils.Fatalf("Failed to start the JavaScript console: %v", err) + } + defer console.Stop(false) + + // Evaluate each of the specified JavaScript files + for _, file := range ctx.Args() { + if err = console.Execute(file); err != nil { + utils.Fatalf("Failed to execute %s: %v", file, err) + } + } + // Wait for pending callbacks, but stop for Ctrl-C. + abort := make(chan os.Signal, 1) + signal.Notify(abort, os.Interrupt) + + go func() { + <-abort + os.Exit(0) + }() + console.Stop(true) +} diff --git a/cmd/geth/consolecmd_test.go b/cmd/geth/consolecmd_test.go new file mode 100644 index 000000000..9cfb3e4e3 --- /dev/null +++ b/cmd/geth/consolecmd_test.go @@ -0,0 +1,152 @@ +// Copyright 2016 The go-ethereum Authors +// This file is part of go-ethereum. +// +// go-ethereum is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// go-ethereum is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with go-ethereum. If not, see . + +package main + +import ( + "math/rand" + "os" + "path/filepath" + "runtime" + "sort" + "strconv" + "strings" + "testing" + "time" + + "github.com/ethereum/go-ethereum/console" + "github.com/ethereum/go-ethereum/rpc" +) + +// Tests that a node embedded within a console can be started up properly and +// then terminated by closing the input stream. +func TestConsoleWelcome(t *testing.T) { + coinbase := "0x8605cdbbdb6d264aa742e77020dcbc58fcdce182" + + // Start a geth console, make sure it's cleaned up and terminate the console + geth := runGeth(t, "--nat", "none", "--nodiscover", "--etherbase", coinbase, "-shh", "console") + defer geth.expectExit() + geth.stdin.Close() + + // Gather all the infos the welcome message needs to contain + geth.setTemplateFunc("goos", func() string { return runtime.GOOS }) + geth.setTemplateFunc("gover", runtime.Version) + geth.setTemplateFunc("gethver", func() string { return verString }) + geth.setTemplateFunc("niltime", func() string { return time.Unix(0, 0).Format(time.RFC1123) }) + geth.setTemplateFunc("apis", func() []string { + apis := append(strings.Split(rpc.DefaultIPCApis, ","), rpc.MetadataApi) + sort.Strings(apis) + return apis + }) + geth.setTemplateFunc("prompt", func() string { return console.DefaultPrompt }) + + // Verify the actual welcome message to the required template + geth.expect(` +Welcome to the Geth JavaScript console! + +instance: Geth/v{{gethver}}/{{goos}}/{{gover}} +coinbase: {{.Etherbase}} +at block: 0 ({{niltime}}) + datadir: {{.Datadir}} + modules:{{range apis}} {{.}}:1.0{{end}} + +{{prompt}} +`) +} + +// Tests that a console can be attached to a running node via various means. +func TestIPCAttachWelcome(t *testing.T) { + // Configure the instance for IPC attachement + coinbase := "0x8605cdbbdb6d264aa742e77020dcbc58fcdce182" + + var ipc string + if runtime.GOOS == "windows" { + ipc = `\\.\pipe\geth` + strconv.Itoa(rand.Int()) + } else { + ws := tmpdir(t) + defer os.RemoveAll(ws) + + ipc = filepath.Join(ws, "geth.ipc") + } + // Run the parent geth and attach with a child console + geth := runGeth(t, "--nat", "none", "--nodiscover", "--etherbase", coinbase, "-shh", "--ipcpath", ipc) + defer geth.interrupt() + + time.Sleep(2 * time.Second) // Simple way to wait for the RPC endpoint to open + testAttachWelcome(t, geth, "ipc:"+ipc) +} + +func TestHTTPAttachWelcome(t *testing.T) { + coinbase := "0x8605cdbbdb6d264aa742e77020dcbc58fcdce182" + port := strconv.Itoa(rand.Intn(65535-1024) + 1024) // Yeah, sometimes this will fail, sorry :P + + geth := runGeth(t, "--nat", "none", "--nodiscover", "--etherbase", coinbase, "--rpc", "--rpcport", port) + defer geth.interrupt() + + time.Sleep(2 * time.Second) // Simple way to wait for the RPC endpoint to open + testAttachWelcome(t, geth, "http://localhost:"+port) +} + +func TestWSAttachWelcome(t *testing.T) { + coinbase := "0x8605cdbbdb6d264aa742e77020dcbc58fcdce182" + port := strconv.Itoa(rand.Intn(65535-1024) + 1024) // Yeah, sometimes this will fail, sorry :P + + geth := runGeth(t, "--nat", "none", "--nodiscover", "--etherbase", coinbase, "--ws", "--wsport", port) + defer geth.interrupt() + + time.Sleep(2 * time.Second) // Simple way to wait for the RPC endpoint to open + testAttachWelcome(t, geth, "ws://localhost:"+port) +} + +func testAttachWelcome(t *testing.T, geth *testgeth, endpoint string) { + // Attach to a running geth note and terminate immediately + attach := runGeth(t, "attach", endpoint) + defer attach.expectExit() + attach.stdin.Close() + + // Gather all the infos the welcome message needs to contain + attach.setTemplateFunc("goos", func() string { return runtime.GOOS }) + attach.setTemplateFunc("gover", runtime.Version) + attach.setTemplateFunc("gethver", func() string { return verString }) + attach.setTemplateFunc("etherbase", func() string { return geth.Etherbase }) + attach.setTemplateFunc("niltime", func() string { return time.Unix(0, 0).Format(time.RFC1123) }) + attach.setTemplateFunc("ipc", func() bool { return strings.HasPrefix(endpoint, "ipc") }) + attach.setTemplateFunc("datadir", func() string { return geth.Datadir }) + attach.setTemplateFunc("apis", func() []string { + var apis []string + if strings.HasPrefix(endpoint, "ipc") { + apis = append(strings.Split(rpc.DefaultIPCApis, ","), rpc.MetadataApi) + } else { + apis = append(strings.Split(rpc.DefaultHTTPApis, ","), rpc.MetadataApi) + } + sort.Strings(apis) + return apis + }) + attach.setTemplateFunc("prompt", func() string { return console.DefaultPrompt }) + + // Verify the actual welcome message to the required template + attach.expect(` +Welcome to the Geth JavaScript console! + +instance: Geth/v{{gethver}}/{{goos}}/{{gover}} +coinbase: {{etherbase}} +at block: 0 ({{niltime}}){{if ipc}} + datadir: {{datadir}}{{end}} + modules:{{range apis}} {{.}}:1.0{{end}} + +{{prompt}} +`) +} diff --git a/cmd/geth/js.go b/cmd/geth/js.go deleted file mode 100644 index 5f455d7a3..000000000 --- a/cmd/geth/js.go +++ /dev/null @@ -1,424 +0,0 @@ -// Copyright 2015 The go-ethereum Authors -// This file is part of go-ethereum. -// -// go-ethereum is free software: you can redistribute it and/or modify -// it under the terms of the GNU General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// go-ethereum is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with go-ethereum. If not, see . - -package main - -import ( - "fmt" - "math/big" - "os" - "os/signal" - "path/filepath" - "regexp" - "sort" - "strings" - - "github.com/codegangsta/cli" - "github.com/ethereum/go-ethereum/accounts" - "github.com/ethereum/go-ethereum/cmd/utils" - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/common/registrar" - "github.com/ethereum/go-ethereum/eth" - "github.com/ethereum/go-ethereum/internal/web3ext" - re "github.com/ethereum/go-ethereum/jsre" - "github.com/ethereum/go-ethereum/node" - "github.com/ethereum/go-ethereum/rpc" - "github.com/peterh/liner" - "github.com/robertkrimen/otto" -) - -var ( - passwordRegexp = regexp.MustCompile("personal.[nus]") - onlyws = regexp.MustCompile("^\\s*$") - exit = regexp.MustCompile("^\\s*exit\\s*;*\\s*$") -) - -type jsre struct { - re *re.JSRE - stack *node.Node - wait chan *big.Int - ps1 string - atexit func() - corsDomain string - client rpc.Client -} - -func makeCompleter(re *jsre) liner.WordCompleter { - return func(line string, pos int) (head string, completions []string, tail string) { - if len(line) == 0 || pos == 0 { - return "", nil, "" - } - // chuck data to relevant part for autocompletion, e.g. in case of nested lines eth.getBalance(eth.coinb - i := 0 - for i = pos - 1; i > 0; i-- { - if line[i] == '.' || (line[i] >= 'a' && line[i] <= 'z') || (line[i] >= 'A' && line[i] <= 'Z') { - continue - } - if i >= 3 && line[i] == '3' && line[i-3] == 'w' && line[i-2] == 'e' && line[i-1] == 'b' { - continue - } - i += 1 - break - } - return line[:i], re.re.CompleteKeywords(line[i:pos]), line[pos:] - } -} - -func newLightweightJSRE(docRoot string, client rpc.Client, datadir string, interactive bool) *jsre { - js := &jsre{ps1: "> "} - js.wait = make(chan *big.Int) - js.client = client - js.re = re.New(docRoot) - if err := js.apiBindings(); err != nil { - utils.Fatalf("Unable to initialize console - %v", err) - } - js.setupInput(datadir) - return js -} - -func newJSRE(stack *node.Node, docRoot, corsDomain string, client rpc.Client, interactive bool) *jsre { - js := &jsre{stack: stack, ps1: "> "} - // set default cors domain used by startRpc from CLI flag - js.corsDomain = corsDomain - js.wait = make(chan *big.Int) - js.client = client - js.re = re.New(docRoot) - if err := js.apiBindings(); err != nil { - utils.Fatalf("Unable to connect - %v", err) - } - js.setupInput(stack.DataDir()) - return js -} - -func (self *jsre) setupInput(datadir string) { - self.withHistory(datadir, func(hist *os.File) { utils.Stdin.ReadHistory(hist) }) - utils.Stdin.SetCtrlCAborts(true) - utils.Stdin.SetWordCompleter(makeCompleter(self)) - utils.Stdin.SetTabCompletionStyle(liner.TabPrints) - self.atexit = func() { - self.withHistory(datadir, func(hist *os.File) { - hist.Truncate(0) - utils.Stdin.WriteHistory(hist) - }) - utils.Stdin.Close() - close(self.wait) - } -} - -func (self *jsre) batch(statement string) { - err := self.re.EvalAndPrettyPrint(statement) - - if err != nil { - fmt.Printf("%v", jsErrorString(err)) - } - - if self.atexit != nil { - self.atexit() - } - - self.re.Stop(false) -} - -// show summary of current geth instance -func (self *jsre) welcome() { - self.re.Run(` - (function () { - console.log('instance: ' + web3.version.node); - console.log("coinbase: " + eth.coinbase); - var ts = 1000 * eth.getBlock(eth.blockNumber).timestamp; - console.log("at block: " + eth.blockNumber + " (" + new Date(ts) + ")"); - console.log(' datadir: ' + admin.datadir); - })(); - `) - if modules, err := self.supportedApis(); err == nil { - loadedModules := make([]string, 0) - for api, version := range modules { - loadedModules = append(loadedModules, fmt.Sprintf("%s:%s", api, version)) - } - sort.Strings(loadedModules) - } -} - -func (self *jsre) supportedApis() (map[string]string, error) { - return self.client.SupportedModules() -} - -func (js *jsre) apiBindings() error { - apis, err := js.supportedApis() - if err != nil { - return err - } - - apiNames := make([]string, 0, len(apis)) - for a, _ := range apis { - apiNames = append(apiNames, a) - } - - jeth := utils.NewJeth(js.re, js.client) - js.re.Set("jeth", struct{}{}) - t, _ := js.re.Get("jeth") - jethObj := t.Object() - - jethObj.Set("send", jeth.Send) - jethObj.Set("sendAsync", jeth.Send) - - err = js.re.Compile("bignumber.js", re.BigNumber_JS) - if err != nil { - utils.Fatalf("Error loading bignumber.js: %v", err) - } - - err = js.re.Compile("web3.js", re.Web3_JS) - if err != nil { - utils.Fatalf("Error loading web3.js: %v", err) - } - - _, err = js.re.Run("var Web3 = require('web3');") - if err != nil { - utils.Fatalf("Error requiring web3: %v", err) - } - - _, err = js.re.Run("var web3 = new Web3(jeth);") - if err != nil { - utils.Fatalf("Error setting web3 provider: %v", err) - } - - // load only supported API's in javascript runtime - shortcuts := "var eth = web3.eth; var personal = web3.personal; " - for _, apiName := range apiNames { - if apiName == "web3" { - continue // manually mapped or ignore - } - - if jsFile, ok := web3ext.Modules[apiName]; ok { - if err = js.re.Compile(fmt.Sprintf("%s.js", apiName), jsFile); err == nil { - shortcuts += fmt.Sprintf("var %s = web3.%s; ", apiName, apiName) - } else { - utils.Fatalf("Error loading %s.js: %v", apiName, err) - } - } - } - - _, err = js.re.Run(shortcuts) - if err != nil { - utils.Fatalf("Error setting namespaces: %v", err) - } - - js.re.Run(`var GlobalRegistrar = eth.contract(` + registrar.GlobalRegistrarAbi + `); registrar = GlobalRegistrar.at("` + registrar.GlobalRegistrarAddr + `");`) - - // overrule some of the methods that require password as input and ask for it interactively - p, err := js.re.Get("personal") - if err != nil { - fmt.Println("Unable to overrule sensitive methods in personal module") - return nil - } - - // Override the unlockAccount and newAccount methods on the personal object since these require user interaction. - // Assign the jeth.unlockAccount and jeth.newAccount in the jsre the original web3 callbacks. These will be called - // by the jeth.* methods after they got the password from the user and send the original web3 request to the backend. - if persObj := p.Object(); persObj != nil { // make sure the personal api is enabled over the interface - js.re.Run(`jeth.unlockAccount = personal.unlockAccount;`) - persObj.Set("unlockAccount", jeth.UnlockAccount) - js.re.Run(`jeth.newAccount = personal.newAccount;`) - persObj.Set("newAccount", jeth.NewAccount) - } - - // The admin.sleep and admin.sleepBlocks are offered by the console and not by the RPC layer. - // Bind these if the admin module is available. - if a, err := js.re.Get("admin"); err == nil { - if adminObj := a.Object(); adminObj != nil { - adminObj.Set("sleepBlocks", jeth.SleepBlocks) - adminObj.Set("sleep", jeth.Sleep) - } - } - - return nil -} - -func (self *jsre) AskPassword() (string, bool) { - pass, err := utils.Stdin.PasswordPrompt("Passphrase: ") - if err != nil { - return "", false - } - return pass, true -} - -func (self *jsre) ConfirmTransaction(tx string) bool { - // Retrieve the Ethereum instance from the node - var ethereum *eth.Ethereum - if err := self.stack.Service(ðereum); err != nil { - return false - } - // If natspec is enabled, ask for permission - if ethereum.NatSpec && false /* disabled for now */ { - // notice := natspec.GetNotice(self.xeth, tx, ethereum.HTTPClient()) - // fmt.Println(notice) - // answer, _ := self.Prompt("Confirm Transaction [y/n]") - // return strings.HasPrefix(strings.Trim(answer, " "), "y") - } - return true -} - -func (self *jsre) UnlockAccount(addr []byte) bool { - fmt.Printf("Please unlock account %x.\n", addr) - pass, err := utils.Stdin.PasswordPrompt("Passphrase: ") - if err != nil { - return false - } - // TODO: allow retry - var ethereum *eth.Ethereum - if err := self.stack.Service(ðereum); err != nil { - return false - } - a := accounts.Account{Address: common.BytesToAddress(addr)} - if err := ethereum.AccountManager().Unlock(a, pass); err != nil { - return false - } else { - fmt.Println("Account is now unlocked for this session.") - return true - } -} - -// preloadJSFiles loads JS files that the user has specified with ctx.PreLoadJSFlag into -// the JSRE. If not all files could be loaded it will return an error describing the error. -func (self *jsre) preloadJSFiles(ctx *cli.Context) error { - if ctx.GlobalString(utils.PreLoadJSFlag.Name) != "" { - assetPath := ctx.GlobalString(utils.JSpathFlag.Name) - jsFiles := strings.Split(ctx.GlobalString(utils.PreLoadJSFlag.Name), ",") - for _, file := range jsFiles { - filename := common.AbsolutePath(assetPath, strings.TrimSpace(file)) - if err := self.re.Exec(filename); err != nil { - return fmt.Errorf("%s: %v", file, jsErrorString(err)) - } - } - } - return nil -} - -// jsErrorString adds a backtrace to errors generated by otto. -func jsErrorString(err error) string { - if ottoErr, ok := err.(*otto.Error); ok { - return ottoErr.String() - } - return err.Error() -} - -func (self *jsre) interactive() { - // Read input lines. - prompt := make(chan string) - inputln := make(chan string) - go func() { - defer close(inputln) - for { - line, err := utils.Stdin.Prompt(<-prompt) - if err != nil { - if err == liner.ErrPromptAborted { // ctrl-C - self.resetPrompt() - inputln <- "" - continue - } - return - } - inputln <- line - } - }() - // Wait for Ctrl-C, too. - sig := make(chan os.Signal, 1) - signal.Notify(sig, os.Interrupt) - - defer func() { - if self.atexit != nil { - self.atexit() - } - self.re.Stop(false) - }() - for { - prompt <- self.ps1 - select { - case <-sig: - fmt.Println("caught interrupt, exiting") - return - case input, ok := <-inputln: - if !ok || indentCount <= 0 && exit.MatchString(input) { - return - } - if onlyws.MatchString(input) { - continue - } - str += input + "\n" - self.setIndent() - if indentCount <= 0 { - if !excludeFromHistory(str) { - utils.Stdin.AppendHistory(str[:len(str)-1]) - } - self.parseInput(str) - str = "" - } - } - } -} - -func excludeFromHistory(input string) bool { - return len(input) == 0 || input[0] == ' ' || passwordRegexp.MatchString(input) -} - -func (self *jsre) withHistory(datadir string, op func(*os.File)) { - hist, err := os.OpenFile(filepath.Join(datadir, "history"), os.O_RDWR|os.O_CREATE, os.ModePerm) - if err != nil { - fmt.Printf("unable to open history file: %v\n", err) - return - } - op(hist) - hist.Close() -} - -func (self *jsre) parseInput(code string) { - defer func() { - if r := recover(); r != nil { - fmt.Println("[native] error", r) - } - }() - if err := self.re.EvalAndPrettyPrint(code); err != nil { - if ottoErr, ok := err.(*otto.Error); ok { - fmt.Println(ottoErr.String()) - } else { - fmt.Println(err) - } - return - } -} - -var indentCount = 0 -var str = "" - -func (self *jsre) resetPrompt() { - indentCount = 0 - str = "" - self.ps1 = "> " -} - -func (self *jsre) setIndent() { - open := strings.Count(str, "{") - open += strings.Count(str, "(") - closed := strings.Count(str, "}") - closed += strings.Count(str, ")") - indentCount = open - closed - if indentCount <= 0 { - self.ps1 = "> " - } else { - self.ps1 = strings.Join(make([]string, indentCount*2), "..") - self.ps1 += " " - } -} diff --git a/cmd/geth/js_test.go b/cmd/geth/js_test.go deleted file mode 100644 index ddfe0d400..000000000 --- a/cmd/geth/js_test.go +++ /dev/null @@ -1,500 +0,0 @@ -// Copyright 2015 The go-ethereum Authors -// This file is part of go-ethereum. -// -// go-ethereum is free software: you can redistribute it and/or modify -// it under the terms of the GNU General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// go-ethereum is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with go-ethereum. If not, see . - -package main - -import ( - "fmt" - "io/ioutil" - "math/big" - "os" - "path/filepath" - "regexp" - "runtime" - "strconv" - "testing" - "time" - - "github.com/ethereum/go-ethereum/accounts" - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/common/compiler" - "github.com/ethereum/go-ethereum/common/httpclient" - "github.com/ethereum/go-ethereum/core" - "github.com/ethereum/go-ethereum/crypto" - "github.com/ethereum/go-ethereum/eth" - "github.com/ethereum/go-ethereum/ethdb" - "github.com/ethereum/go-ethereum/node" -) - -const ( - testSolcPath = "" - solcVersion = "0.9.23" - testAddress = "0x8605cdbbdb6d264aa742e77020dcbc58fcdce182" - testBalance = "10000000000000000000" - // of empty string - testHash = "0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470" -) - -var ( - versionRE = regexp.MustCompile(strconv.Quote(`"compilerVersion":"` + solcVersion + `"`)) - testNodeKey, _ = crypto.HexToECDSA("4b50fa71f5c3eeb8fdc452224b2395af2fcc3d125e06c32c82e048c0559db03f") - testAccount, _ = crypto.HexToECDSA("e6fab74a43941f82d89cb7faa408e227cdad3153c4720e540e855c19b15e6674") - testGenesis = `{"` + testAddress[2:] + `": {"balance": "` + testBalance + `"}}` -) - -type testjethre struct { - *jsre - lastConfirm string - client *httpclient.HTTPClient -} - -// Temporary disabled while natspec hasn't been migrated -//func (self *testjethre) ConfirmTransaction(tx string) bool { -// var ethereum *eth.Ethereum -// self.stack.Service(ðereum) -// -// if ethereum.NatSpec { -// self.lastConfirm = natspec.GetNotice(self.xeth, tx, self.client) -// } -// return true -//} - -func testJEthRE(t *testing.T) (string, *testjethre, *node.Node) { - return testREPL(t, nil) -} - -func testREPL(t *testing.T, config func(*eth.Config)) (string, *testjethre, *node.Node) { - tmp, err := ioutil.TempDir("", "geth-test") - if err != nil { - t.Fatal(err) - } - // Create a networkless protocol stack - stack, err := node.New(&node.Config{DataDir: tmp, PrivateKey: testNodeKey, Name: "test", NoDiscovery: true}) - if err != nil { - t.Fatalf("failed to create node: %v", err) - } - // Initialize and register the Ethereum protocol - accman := accounts.NewPlaintextManager(filepath.Join(tmp, "keystore")) - db, _ := ethdb.NewMemDatabase() - core.WriteGenesisBlockForTesting(db, core.GenesisAccount{ - Address: common.HexToAddress(testAddress), - Balance: common.String2Big(testBalance), - }) - ethConf := ð.Config{ - ChainConfig: &core.ChainConfig{HomesteadBlock: new(big.Int)}, - TestGenesisState: db, - AccountManager: accman, - DocRoot: "/", - SolcPath: testSolcPath, - PowTest: true, - } - if config != nil { - config(ethConf) - } - if err := stack.Register(func(ctx *node.ServiceContext) (node.Service, error) { - return eth.New(ctx, ethConf) - }); err != nil { - t.Fatalf("failed to register ethereum protocol: %v", err) - } - // Initialize all the keys for testing - a, err := accman.ImportECDSA(testAccount, "") - if err != nil { - t.Fatal(err) - } - if err := accman.Unlock(a, ""); err != nil { - t.Fatal(err) - } - // Start the node and assemble the REPL tester - if err := stack.Start(); err != nil { - t.Fatalf("failed to start test stack: %v", err) - } - var ethereum *eth.Ethereum - stack.Service(ðereum) - - assetPath := filepath.Join(os.Getenv("GOPATH"), "src", "github.com", "ethereum", "go-ethereum", "cmd", "mist", "assets", "ext") - client, err := stack.Attach() - if err != nil { - t.Fatalf("failed to attach to node: %v", err) - } - tf := &testjethre{client: ethereum.HTTPClient()} - repl := newJSRE(stack, assetPath, "", client, false) - tf.jsre = repl - return tmp, tf, stack -} - -func TestNodeInfo(t *testing.T) { - t.Skip("broken after p2p update") - tmp, repl, ethereum := testJEthRE(t) - defer ethereum.Stop() - defer os.RemoveAll(tmp) - - want := `{"DiscPort":0,"IP":"0.0.0.0","ListenAddr":"","Name":"test","NodeID":"4cb2fc32924e94277bf94b5e4c983beedb2eabd5a0bc941db32202735c6625d020ca14a5963d1738af43b6ac0a711d61b1a06de931a499fe2aa0b1a132a902b5","NodeUrl":"enode://4cb2fc32924e94277bf94b5e4c983beedb2eabd5a0bc941db32202735c6625d020ca14a5963d1738af43b6ac0a711d61b1a06de931a499fe2aa0b1a132a902b5@0.0.0.0:0","TCPPort":0,"Td":"131072"}` - checkEvalJSON(t, repl, `admin.nodeInfo`, want) -} - -func TestAccounts(t *testing.T) { - tmp, repl, node := testJEthRE(t) - defer node.Stop() - defer os.RemoveAll(tmp) - - checkEvalJSON(t, repl, `eth.accounts`, `["`+testAddress+`"]`) - checkEvalJSON(t, repl, `eth.coinbase`, `"`+testAddress+`"`) - val, err := repl.re.Run(`jeth.newAccount("password")`) - if err != nil { - t.Errorf("expected no error, got %v", err) - } - addr := val.String() - if !regexp.MustCompile(`0x[0-9a-f]{40}`).MatchString(addr) { - t.Errorf("address not hex: %q", addr) - } - - checkEvalJSON(t, repl, `eth.accounts`, `["`+testAddress+`","`+addr+`"]`) - -} - -func TestBlockChain(t *testing.T) { - tmp, repl, node := testJEthRE(t) - defer node.Stop() - defer os.RemoveAll(tmp) - // get current block dump before export/import. - val, err := repl.re.Run("JSON.stringify(debug.dumpBlock(eth.blockNumber))") - if err != nil { - t.Errorf("expected no error, got %v", err) - } - beforeExport := val.String() - - // do the export - extmp, err := ioutil.TempDir("", "geth-test-export") - if err != nil { - t.Fatal(err) - } - defer os.RemoveAll(extmp) - tmpfile := filepath.Join(extmp, "export.chain") - tmpfileq := strconv.Quote(tmpfile) - - var ethereum *eth.Ethereum - node.Service(ðereum) - ethereum.BlockChain().Reset() - - checkEvalJSON(t, repl, `admin.exportChain(`+tmpfileq+`)`, `true`) - if _, err := os.Stat(tmpfile); err != nil { - t.Fatal(err) - } - - // check import, verify that dumpBlock gives the same result. - checkEvalJSON(t, repl, `admin.importChain(`+tmpfileq+`)`, `true`) - checkEvalJSON(t, repl, `debug.dumpBlock(eth.blockNumber)`, beforeExport) -} - -func TestMining(t *testing.T) { - tmp, repl, node := testJEthRE(t) - defer node.Stop() - defer os.RemoveAll(tmp) - checkEvalJSON(t, repl, `eth.mining`, `false`) -} - -func TestRPC(t *testing.T) { - tmp, repl, node := testJEthRE(t) - defer node.Stop() - defer os.RemoveAll(tmp) - - checkEvalJSON(t, repl, `admin.startRPC("127.0.0.1", 5004, "*", "web3,eth,net")`, `true`) -} - -func TestCheckTestAccountBalance(t *testing.T) { - t.Skip() // i don't think it tests the correct behaviour here. it's actually testing - // internals which shouldn't be tested. This now fails because of a change in the core - // and i have no means to fix this, sorry - @obscuren - tmp, repl, node := testJEthRE(t) - defer node.Stop() - defer os.RemoveAll(tmp) - - repl.re.Run(`primary = "` + testAddress + `"`) - checkEvalJSON(t, repl, `eth.getBalance(primary)`, `"`+testBalance+`"`) -} - -func TestSignature(t *testing.T) { - tmp, repl, node := testJEthRE(t) - defer node.Stop() - defer os.RemoveAll(tmp) - - val, err := repl.re.Run(`eth.sign("` + testAddress + `", "` + testHash + `")`) - - // This is a very preliminary test, lacking actual signature verification - if err != nil { - t.Errorf("Error running js: %v", err) - return - } - output := val.String() - t.Logf("Output: %v", output) - - regex := regexp.MustCompile(`^0x[0-9a-f]{130}$`) - if !regex.MatchString(output) { - t.Errorf("Signature is not 65 bytes represented in hexadecimal.") - return - } -} - -func TestContract(t *testing.T) { - t.Skip("contract testing is implemented with mining in ethash test mode. This takes about 7seconds to run. Unskip and run on demand") - coinbase := common.HexToAddress(testAddress) - tmp, repl, ethereum := testREPL(t, func(conf *eth.Config) { - conf.Etherbase = coinbase - conf.PowTest = true - }) - if err := ethereum.Start(); err != nil { - t.Errorf("error starting ethereum: %v", err) - return - } - defer ethereum.Stop() - defer os.RemoveAll(tmp) - - // Temporary disabled while registrar isn't migrated - //reg := registrar.New(repl.xeth) - //_, err := reg.SetGlobalRegistrar("", coinbase) - //if err != nil { - // t.Errorf("error setting HashReg: %v", err) - //} - //_, err = reg.SetHashReg("", coinbase) - //if err != nil { - // t.Errorf("error setting HashReg: %v", err) - //} - //_, err = reg.SetUrlHint("", coinbase) - //if err != nil { - // t.Errorf("error setting HashReg: %v", err) - //} - /* TODO: - * lookup receipt and contract addresses by tx hash - * name registration for HashReg and UrlHint addresses - * mine those transactions - * then set once more SetHashReg SetUrlHint - */ - - source := `contract test {\n` + - " /// @notice Will multiply `a` by 7." + `\n` + - ` function multiply(uint a) returns(uint d) {\n` + - ` return a * 7;\n` + - ` }\n` + - `}\n` - - if checkEvalJSON(t, repl, `admin.stopNatSpec()`, `true`) != nil { - return - } - - contractInfo, err := ioutil.ReadFile("info_test.json") - if err != nil { - t.Fatalf("%v", err) - } - if checkEvalJSON(t, repl, `primary = eth.accounts[0]`, `"`+testAddress+`"`) != nil { - return - } - if checkEvalJSON(t, repl, `source = "`+source+`"`, `"`+source+`"`) != nil { - return - } - - // if solc is found with right version, test it, otherwise read from file - sol, err := compiler.New("") - if err != nil { - t.Logf("solc not found: mocking contract compilation step") - } else if sol.Version() != solcVersion { - t.Logf("WARNING: solc different version found (%v, test written for %v, may need to update)", sol.Version(), solcVersion) - } - - if err != nil { - info, err := ioutil.ReadFile("info_test.json") - if err != nil { - t.Fatalf("%v", err) - } - _, err = repl.re.Run(`contract = JSON.parse(` + strconv.Quote(string(info)) + `)`) - if err != nil { - t.Errorf("%v", err) - } - } else { - if checkEvalJSON(t, repl, `contract = eth.compile.solidity(source).test`, string(contractInfo)) != nil { - return - } - } - - if checkEvalJSON(t, repl, `contract.code`, `"0x605880600c6000396000f3006000357c010000000000000000000000000000000000000000000000000000000090048063c6888fa114602e57005b603d6004803590602001506047565b8060005260206000f35b60006007820290506053565b91905056"`) != nil { - return - } - - if checkEvalJSON( - t, repl, - `contractaddress = eth.sendTransaction({from: primary, data: contract.code})`, - `"0x46d69d55c3c4b86a924a92c9fc4720bb7bce1d74"`, - ) != nil { - return - } - - if !processTxs(repl, t, 8) { - return - } - - callSetup := `abiDef = JSON.parse('[{"constant":false,"inputs":[{"name":"a","type":"uint256"}],"name":"multiply","outputs":[{"name":"d","type":"uint256"}],"type":"function"}]'); -Multiply7 = eth.contract(abiDef); -multiply7 = Multiply7.at(contractaddress); -` - _, err = repl.re.Run(callSetup) - if err != nil { - t.Errorf("unexpected error setting up contract, got %v", err) - return - } - - expNotice := "" - if repl.lastConfirm != expNotice { - t.Errorf("incorrect confirmation message: expected %v, got %v", expNotice, repl.lastConfirm) - return - } - - if checkEvalJSON(t, repl, `admin.startNatSpec()`, `true`) != nil { - return - } - if checkEvalJSON(t, repl, `multiply7.multiply.sendTransaction(6, { from: primary })`, `"0x4ef9088431a8033e4580d00e4eb2487275e031ff4163c7529df0ef45af17857b"`) != nil { - return - } - - if !processTxs(repl, t, 1) { - return - } - - expNotice = `About to submit transaction (no NatSpec info found for contract: content hash not found for '0x87e2802265838c7f14bb69eecd2112911af6767907a702eeaa445239fb20711b'): {"params":[{"to":"0x46d69d55c3c4b86a924a92c9fc4720bb7bce1d74","data": "0xc6888fa10000000000000000000000000000000000000000000000000000000000000006"}]}` - if repl.lastConfirm != expNotice { - t.Errorf("incorrect confirmation message: expected\n%v, got\n%v", expNotice, repl.lastConfirm) - return - } - - var contentHash = `"0x86d2b7cf1e72e9a7a3f8d96601f0151742a2f780f1526414304fbe413dc7f9bd"` - if sol != nil && solcVersion != sol.Version() { - modContractInfo := versionRE.ReplaceAll(contractInfo, []byte(`"compilerVersion":"`+sol.Version()+`"`)) - fmt.Printf("modified contractinfo:\n%s\n", modContractInfo) - contentHash = `"` + common.ToHex(crypto.Keccak256([]byte(modContractInfo))) + `"` - } - if checkEvalJSON(t, repl, `filename = "/tmp/info.json"`, `"/tmp/info.json"`) != nil { - return - } - if checkEvalJSON(t, repl, `contentHash = admin.saveInfo(contract.info, filename)`, contentHash) != nil { - return - } - if checkEvalJSON(t, repl, `admin.register(primary, contractaddress, contentHash)`, `true`) != nil { - return - } - if checkEvalJSON(t, repl, `admin.registerUrl(primary, contentHash, "file://"+filename)`, `true`) != nil { - return - } - - if checkEvalJSON(t, repl, `admin.startNatSpec()`, `true`) != nil { - return - } - - if !processTxs(repl, t, 3) { - return - } - - if checkEvalJSON(t, repl, `multiply7.multiply.sendTransaction(6, { from: primary })`, `"0x66d7635c12ad0b231e66da2f987ca3dfdca58ffe49c6442aa55960858103fd0c"`) != nil { - return - } - - if !processTxs(repl, t, 1) { - return - } - - expNotice = "Will multiply 6 by 7." - if repl.lastConfirm != expNotice { - t.Errorf("incorrect confirmation message: expected\n%v, got\n%v", expNotice, repl.lastConfirm) - return - } -} - -func pendingTransactions(repl *testjethre, t *testing.T) (txc int64, err error) { - var ethereum *eth.Ethereum - repl.stack.Service(ðereum) - - txs := ethereum.TxPool().GetTransactions() - return int64(len(txs)), nil -} - -func processTxs(repl *testjethre, t *testing.T, expTxc int) bool { - var txc int64 - var err error - for i := 0; i < 50; i++ { - txc, err = pendingTransactions(repl, t) - if err != nil { - t.Errorf("unexpected error checking pending transactions: %v", err) - return false - } - if expTxc < int(txc) { - t.Errorf("too many pending transactions: expected %v, got %v", expTxc, txc) - return false - } else if expTxc == int(txc) { - break - } - time.Sleep(100 * time.Millisecond) - } - if int(txc) != expTxc { - t.Errorf("incorrect number of pending transactions, expected %v, got %v", expTxc, txc) - return false - } - var ethereum *eth.Ethereum - repl.stack.Service(ðereum) - - err = ethereum.StartMining(runtime.NumCPU(), "") - if err != nil { - t.Errorf("unexpected error mining: %v", err) - return false - } - defer ethereum.StopMining() - - timer := time.NewTimer(100 * time.Second) - blockNr := ethereum.BlockChain().CurrentBlock().Number() - height := new(big.Int).Add(blockNr, big.NewInt(1)) - repl.wait <- height - select { - case <-timer.C: - // if times out make sure the xeth loop does not block - go func() { - select { - case repl.wait <- nil: - case <-repl.wait: - } - }() - case <-repl.wait: - } - txc, err = pendingTransactions(repl, t) - if err != nil { - t.Errorf("unexpected error checking pending transactions: %v", err) - return false - } - if txc != 0 { - t.Errorf("%d trasactions were not mined", txc) - return false - } - return true -} - -func checkEvalJSON(t *testing.T, re *testjethre, expr, want string) error { - val, err := re.re.Run("JSON.stringify(" + expr + ")") - if err == nil && val.String() != want { - err = fmt.Errorf("Output mismatch for `%s`:\ngot: %s\nwant: %s", expr, val.String(), want) - } - if err != nil { - _, file, line, _ := runtime.Caller(1) - file = filepath.Base(file) - fmt.Printf("\t%s:%d: %v\n", file, line, err) - t.Fail() - } - return err -} diff --git a/cmd/geth/main.go b/cmd/geth/main.go index 68aa7d45f..cdbda53e8 100644 --- a/cmd/geth/main.go +++ b/cmd/geth/main.go @@ -22,7 +22,6 @@ import ( "fmt" "io/ioutil" "os" - "os/signal" "path/filepath" "runtime" "strconv" @@ -33,6 +32,7 @@ import ( "github.com/ethereum/ethash" "github.com/ethereum/go-ethereum/cmd/utils" "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/console" "github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/eth" "github.com/ethereum/go-ethereum/ethdb" @@ -95,6 +95,9 @@ func init() { monitorCommand, accountCommand, walletCommand, + consoleCommand, + attachCommand, + javascriptCommand, { Action: makedag, Name: "makedag", @@ -138,36 +141,6 @@ The output of this command is supposed to be machine-readable. The init command initialises a new genesis block and definition for the network. This is a destructive action and changes the network in which you will be participating. -`, - }, - { - Action: console, - Name: "console", - Usage: `Geth Console: interactive JavaScript environment`, - Description: ` -The Geth console is an interactive shell for the JavaScript runtime environment -which exposes a node admin interface as well as the Ðapp JavaScript API. -See https://github.com/ethereum/go-ethereum/wiki/Javascipt-Console -`, - }, - { - Action: attach, - Name: "attach", - Usage: `Geth Console: interactive JavaScript environment (connect to node)`, - Description: ` - The Geth console is an interactive shell for the JavaScript runtime environment - which exposes a node admin interface as well as the Ðapp JavaScript API. - See https://github.com/ethereum/go-ethereum/wiki/Javascipt-Console. - This command allows to open a console on a running geth node. - `, - }, - { - Action: execScripts, - Name: "js", - Usage: `executes the given JavaScript files in the Geth JavaScript VM`, - Description: ` -The JavaScript VM exposes a node admin interface as well as the Ðapp -JavaScript API. See https://github.com/ethereum/go-ethereum/wiki/Javascipt-Console `, }, } @@ -214,7 +187,7 @@ JavaScript API. See https://github.com/ethereum/go-ethereum/wiki/Javascipt-Conso utils.IPCApiFlag, utils.IPCPathFlag, utils.ExecFlag, - utils.PreLoadJSFlag, + utils.PreloadJSFlag, utils.WhisperEnabledFlag, utils.DevModeFlag, utils.TestNetFlag, @@ -263,7 +236,7 @@ JavaScript API. See https://github.com/ethereum/go-ethereum/wiki/Javascipt-Conso app.After = func(ctx *cli.Context) error { logger.Flush() debug.Exit() - utils.Stdin.Close() // Resets terminal mode. + console.TerminalPrompter.Close() // Resets terminal mode. return nil } } @@ -304,36 +277,6 @@ func geth(ctx *cli.Context) { node.Wait() } -// attach will connect to a running geth instance attaching a JavaScript console and to it. -func attach(ctx *cli.Context) { - // attach to a running geth instance - client, err := utils.NewRemoteRPCClient(ctx) - if err != nil { - utils.Fatalf("Unable to attach to geth: %v", err) - } - - repl := newLightweightJSRE( - ctx.GlobalString(utils.JSpathFlag.Name), - client, - ctx.GlobalString(utils.DataDirFlag.Name), - true, - ) - - // preload user defined JS files into the console - err = repl.preloadJSFiles(ctx) - if err != nil { - utils.Fatalf("unable to preload JS file %v", err) - } - - // in case the exec flag holds a JS statement execute it and return - if ctx.GlobalString(utils.ExecFlag.Name) != "" { - repl.batch(ctx.GlobalString(utils.ExecFlag.Name)) - } else { - repl.welcome() - repl.interactive() - } -} - // initGenesis will initialise the given JSON format genesis file and writes it as // the zero'd block (i.e. genesis) or will fail hard if it can't succeed. func initGenesis(ctx *cli.Context) { @@ -359,77 +302,6 @@ func initGenesis(ctx *cli.Context) { glog.V(logger.Info).Infof("successfully wrote genesis block and/or chain rule set: %x", block.Hash()) } -// console starts a new geth node, attaching a JavaScript console to it at the -// same time. -func console(ctx *cli.Context) { - // Create and start the node based on the CLI flags - node := utils.MakeSystemNode(clientIdentifier, verString, relConfig, makeDefaultExtra(), ctx) - startNode(ctx, node) - - // Attach to the newly started node, and either execute script or become interactive - client, err := node.Attach() - if err != nil { - utils.Fatalf("Failed to attach to the inproc geth: %v", err) - } - repl := newJSRE(node, - ctx.GlobalString(utils.JSpathFlag.Name), - ctx.GlobalString(utils.RPCCORSDomainFlag.Name), - client, true) - - // preload user defined JS files into the console - err = repl.preloadJSFiles(ctx) - if err != nil { - utils.Fatalf("%v", err) - } - - // in case the exec flag holds a JS statement execute it and return - if script := ctx.GlobalString(utils.ExecFlag.Name); script != "" { - repl.batch(script) - } else { - repl.welcome() - repl.interactive() - } - node.Stop() -} - -// execScripts starts a new geth node based on the CLI flags, and executes each -// of the JavaScript files specified as command arguments. -func execScripts(ctx *cli.Context) { - // Create and start the node based on the CLI flags - node := utils.MakeSystemNode(clientIdentifier, verString, relConfig, makeDefaultExtra(), ctx) - startNode(ctx, node) - defer node.Stop() - - // Attach to the newly started node and execute the given scripts - client, err := node.Attach() - if err != nil { - utils.Fatalf("Failed to attach to the inproc geth: %v", err) - } - repl := newJSRE(node, - ctx.GlobalString(utils.JSpathFlag.Name), - ctx.GlobalString(utils.RPCCORSDomainFlag.Name), - client, false) - - // Run all given files. - for _, file := range ctx.Args() { - if err = repl.re.Exec(file); err != nil { - break - } - } - if err != nil { - utils.Fatalf("JavaScript Error: %v", jsErrorString(err)) - } - // JS files loaded successfully. - // Wait for pending callbacks, but stop for Ctrl-C. - abort := make(chan os.Signal, 1) - signal.Notify(abort, os.Interrupt) - go func() { - <-abort - repl.re.Stop(false) - }() - repl.re.Stop(true) -} - // startNode boots up the system node and all registered protocols, after which // it unlocks any requested accounts, and starts the RPC/IPC interfaces and the // miner. diff --git a/cmd/geth/run_test.go b/cmd/geth/run_test.go index ba4ce0c60..f6bc3f869 100644 --- a/cmd/geth/run_test.go +++ b/cmd/geth/run_test.go @@ -45,6 +45,7 @@ type testgeth struct { // template variables for expect Datadir string Executable string + Etherbase string Func template.FuncMap removeDatadir bool @@ -67,11 +68,15 @@ func init() { func runGeth(t *testing.T, args ...string) *testgeth { tt := &testgeth{T: t, Executable: os.Args[0]} for i, arg := range args { - if arg == "-datadir" || arg == "--datadir" { + switch { + case arg == "-datadir" || arg == "--datadir": if i < len(args)-1 { tt.Datadir = args[i+1] } - break + case arg == "-etherbase" || arg == "--etherbase": + if i < len(args)-1 { + tt.Etherbase = args[i+1] + } } } if tt.Datadir == "" { diff --git a/cmd/geth/usage.go b/cmd/geth/usage.go index 90019d7b9..01a71c1f6 100644 --- a/cmd/geth/usage.go +++ b/cmd/geth/usage.go @@ -101,7 +101,7 @@ var AppHelpFlagGroups = []flagGroup{ utils.RPCCORSDomainFlag, utils.JSpathFlag, utils.ExecFlag, - utils.PreLoadJSFlag, + utils.PreloadJSFlag, }, }, { diff --git a/cmd/utils/flags.go b/cmd/utils/flags.go index 43dbc37f7..c476e1c77 100644 --- a/cmd/utils/flags.go +++ b/cmd/utils/flags.go @@ -302,7 +302,7 @@ var ( Name: "exec", Usage: "Execute JavaScript statement (only in combination with console/attach)", } - PreLoadJSFlag = cli.StringFlag{ + PreloadJSFlag = cli.StringFlag{ Name: "preload", Usage: "Comma separated list of JavaScript files to preload into the console", } @@ -864,3 +864,20 @@ func MakeChain(ctx *cli.Context) (chain *core.BlockChain, chainDb ethdb.Database } return chain, chainDb } + +// MakeConsolePreloads retrieves the absolute paths for the console JavaScript +// scripts to preload before starting. +func MakeConsolePreloads(ctx *cli.Context) []string { + // Skip preloading if there's nothing to preload + if ctx.GlobalString(PreloadJSFlag.Name) == "" { + return nil + } + // Otherwise resolve absolute paths and return them + preloads := []string{} + + assets := ctx.GlobalString(JSpathFlag.Name) + for _, file := range strings.Split(ctx.GlobalString(PreloadJSFlag.Name), ",") { + preloads = append(preloads, common.AbsolutePath(assets, strings.TrimSpace(file))) + } + return preloads +} diff --git a/cmd/utils/input.go b/cmd/utils/input.go deleted file mode 100644 index 523d5a587..000000000 --- a/cmd/utils/input.go +++ /dev/null @@ -1,98 +0,0 @@ -// Copyright 2016 The go-ethereum Authors -// This file is part of go-ethereum. -// -// go-ethereum is free software: you can redistribute it and/or modify -// it under the terms of the GNU General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// go-ethereum is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with go-ethereum. If not, see . - -package utils - -import ( - "fmt" - "strings" - - "github.com/peterh/liner" -) - -// Holds the stdin line reader. -// Only this reader may be used for input because it keeps -// an internal buffer. -var Stdin = newUserInputReader() - -type userInputReader struct { - *liner.State - warned bool - supported bool - normalMode liner.ModeApplier - rawMode liner.ModeApplier -} - -func newUserInputReader() *userInputReader { - r := new(userInputReader) - // Get the original mode before calling NewLiner. - // This is usually regular "cooked" mode where characters echo. - normalMode, _ := liner.TerminalMode() - // Turn on liner. It switches to raw mode. - r.State = liner.NewLiner() - rawMode, err := liner.TerminalMode() - if err != nil || !liner.TerminalSupported() { - r.supported = false - } else { - r.supported = true - r.normalMode = normalMode - r.rawMode = rawMode - // Switch back to normal mode while we're not prompting. - normalMode.ApplyMode() - } - return r -} - -func (r *userInputReader) Prompt(prompt string) (string, error) { - if r.supported { - r.rawMode.ApplyMode() - defer r.normalMode.ApplyMode() - } else { - // liner tries to be smart about printing the prompt - // and doesn't print anything if input is redirected. - // Un-smart it by printing the prompt always. - fmt.Print(prompt) - prompt = "" - defer fmt.Println() - } - return r.State.Prompt(prompt) -} - -func (r *userInputReader) PasswordPrompt(prompt string) (passwd string, err error) { - if r.supported { - r.rawMode.ApplyMode() - defer r.normalMode.ApplyMode() - return r.State.PasswordPrompt(prompt) - } - if !r.warned { - fmt.Println("!! Unsupported terminal, password will be echoed.") - r.warned = true - } - // Just as in Prompt, handle printing the prompt here instead of relying on liner. - fmt.Print(prompt) - passwd, err = r.State.Prompt("") - fmt.Println() - return passwd, err -} - -func (r *userInputReader) ConfirmPrompt(prompt string) (bool, error) { - prompt = prompt + " [y/N] " - input, err := r.Prompt(prompt) - if len(input) > 0 && strings.ToUpper(input[:1]) == "Y" { - return true, nil - } - return false, err -} diff --git a/cmd/utils/jeth.go b/cmd/utils/jeth.go deleted file mode 100644 index 9410180b0..000000000 --- a/cmd/utils/jeth.go +++ /dev/null @@ -1,301 +0,0 @@ -// Copyright 2015 The go-ethereum Authors -// This file is part of go-ethereum. -// -// go-ethereum is free software: you can redistribute it and/or modify -// it under the terms of the GNU General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// go-ethereum is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with go-ethereum. If not, see . - -package utils - -import ( - "encoding/json" - "fmt" - "time" - - "github.com/ethereum/go-ethereum/jsre" - "github.com/ethereum/go-ethereum/rpc" - - "github.com/robertkrimen/otto" -) - -type Jeth struct { - re *jsre.JSRE - client rpc.Client -} - -// NewJeth create a new backend for the JSRE console -func NewJeth(re *jsre.JSRE, client rpc.Client) *Jeth { - return &Jeth{re, client} -} - -// err returns an error object for the given error code and message. -func (self *Jeth) err(call otto.FunctionCall, code int, msg string, id interface{}) (response otto.Value) { - m := rpc.JSONErrResponse{ - Version: "2.0", - Id: id, - Error: rpc.JSONError{ - Code: code, - Message: msg, - }, - } - - errObj, _ := json.Marshal(m.Error) - errRes, _ := json.Marshal(m) - - call.Otto.Run("ret_error = " + string(errObj)) - res, _ := call.Otto.Run("ret_response = " + string(errRes)) - - return res -} - -// UnlockAccount asks the user for the password and than executes the jeth.UnlockAccount callback in the jsre. -// It will need the public address for the account to unlock as first argument. -// The second argument is an optional string with the password. If not given the user is prompted for the password. -// The third argument is an optional integer which specifies for how long the account will be unlocked (in seconds). -func (self *Jeth) UnlockAccount(call otto.FunctionCall) (response otto.Value) { - var account, passwd otto.Value - duration := otto.NullValue() - - if !call.Argument(0).IsString() { - fmt.Println("first argument must be the account to unlock") - return otto.FalseValue() - } - - account = call.Argument(0) - - // if password is not given or as null value -> ask user for password - if call.Argument(1).IsUndefined() || call.Argument(1).IsNull() { - fmt.Printf("Unlock account %s\n", account) - if input, err := Stdin.PasswordPrompt("Passphrase: "); err != nil { - throwJSExeception(err.Error()) - } else { - passwd, _ = otto.ToValue(input) - } - } else { - if !call.Argument(1).IsString() { - throwJSExeception("password must be a string") - } - passwd = call.Argument(1) - } - - // third argument is the duration how long the account must be unlocked. - // verify that its a number. - if call.Argument(2).IsDefined() && !call.Argument(2).IsNull() { - if !call.Argument(2).IsNumber() { - throwJSExeception("unlock duration must be a number") - } - duration = call.Argument(2) - } - - // jeth.unlockAccount will send the request to the backend. - if val, err := call.Otto.Call("jeth.unlockAccount", nil, account, passwd, duration); err == nil { - return val - } else { - throwJSExeception(err.Error()) - } - - return otto.FalseValue() -} - -// NewAccount asks the user for the password and than executes the jeth.newAccount callback in the jsre -func (self *Jeth) NewAccount(call otto.FunctionCall) (response otto.Value) { - var passwd string - if len(call.ArgumentList) == 0 { - var err error - passwd, err = Stdin.PasswordPrompt("Passphrase: ") - if err != nil { - return otto.FalseValue() - } - passwd2, err := Stdin.PasswordPrompt("Repeat passphrase: ") - if err != nil { - return otto.FalseValue() - } - - if passwd != passwd2 { - fmt.Println("Passphrases don't match") - return otto.FalseValue() - } - } else if len(call.ArgumentList) == 1 && call.Argument(0).IsString() { - passwd, _ = call.Argument(0).ToString() - } else { - fmt.Println("expected 0 or 1 string argument") - return otto.FalseValue() - } - - ret, err := call.Otto.Call("jeth.newAccount", nil, passwd) - if err == nil { - return ret - } - fmt.Println(err) - return otto.FalseValue() -} - -// Send will serialize the first argument, send it to the node and returns the response. -func (self *Jeth) Send(call otto.FunctionCall) (response otto.Value) { - // verify we got a batch request (array) or a single request (object) - ro := call.Argument(0).Object() - if ro == nil || (ro.Class() != "Array" && ro.Class() != "Object") { - throwJSExeception("Internal Error: request must be an object or array") - } - - // convert otto vm arguments to go values by JSON serialising and parsing. - data, err := call.Otto.Call("JSON.stringify", nil, ro) - if err != nil { - throwJSExeception(err.Error()) - } - - jsonreq, _ := data.ToString() - - // parse arguments to JSON rpc requests, either to an array (batch) or to a single request. - var reqs []rpc.JSONRequest - batch := true - if err = json.Unmarshal([]byte(jsonreq), &reqs); err != nil { - // single request? - reqs = make([]rpc.JSONRequest, 1) - if err = json.Unmarshal([]byte(jsonreq), &reqs[0]); err != nil { - throwJSExeception("invalid request") - } - batch = false - } - - call.Otto.Set("response_len", len(reqs)) - call.Otto.Run("var ret_response = new Array(response_len);") - - for i, req := range reqs { - if err := self.client.Send(&req); err != nil { - return self.err(call, -32603, err.Error(), req.Id) - } - - result := make(map[string]interface{}) - if err = self.client.Recv(&result); err != nil { - return self.err(call, -32603, err.Error(), req.Id) - } - - id, _ := result["id"] - jsonver, _ := result["jsonrpc"] - - call.Otto.Set("ret_id", id) - call.Otto.Set("ret_jsonrpc", jsonver) - call.Otto.Set("response_idx", i) - - // call was successful - if res, ok := result["result"]; ok { - payload, _ := json.Marshal(res) - call.Otto.Set("ret_result", string(payload)) - response, err = call.Otto.Run(` - ret_response[response_idx] = { jsonrpc: ret_jsonrpc, id: ret_id, result: JSON.parse(ret_result) }; - `) - continue - } - - // request returned an error - if res, ok := result["error"]; ok { - payload, _ := json.Marshal(res) - call.Otto.Set("ret_result", string(payload)) - response, err = call.Otto.Run(` - ret_response[response_idx] = { jsonrpc: ret_jsonrpc, id: ret_id, error: JSON.parse(ret_result) }; - `) - continue - } - - return self.err(call, -32603, fmt.Sprintf("Invalid response"), new(int64)) - } - - if !batch { - call.Otto.Run("ret_response = ret_response[0];") - } - - // if a callback was given execute it. - if call.Argument(1).IsObject() { - call.Otto.Set("callback", call.Argument(1)) - call.Otto.Run(` - if (Object.prototype.toString.call(callback) == '[object Function]') { - callback(null, ret_response); - } - `) - } - - return -} - -// throwJSExeception panics on an otto value, the Otto VM will then throw msg as a javascript error. -func throwJSExeception(msg interface{}) otto.Value { - p, _ := otto.ToValue(msg) - panic(p) -} - -// Sleep will halt the console for arg[0] seconds. -func (self *Jeth) Sleep(call otto.FunctionCall) (response otto.Value) { - if len(call.ArgumentList) >= 1 { - if call.Argument(0).IsNumber() { - sleep, _ := call.Argument(0).ToInteger() - time.Sleep(time.Duration(sleep) * time.Second) - return otto.TrueValue() - } - } - return throwJSExeception("usage: sleep()") -} - -// SleepBlocks will wait for a specified number of new blocks or max for a -// given of seconds. sleepBlocks(nBlocks[, maxSleep]). -func (self *Jeth) SleepBlocks(call otto.FunctionCall) (response otto.Value) { - nBlocks := int64(0) - maxSleep := int64(9999999999999999) // indefinitely - - nArgs := len(call.ArgumentList) - - if nArgs == 0 { - throwJSExeception("usage: sleepBlocks([, max sleep in seconds])") - } - - if nArgs >= 1 { - if call.Argument(0).IsNumber() { - nBlocks, _ = call.Argument(0).ToInteger() - } else { - throwJSExeception("expected number as first argument") - } - } - - if nArgs >= 2 { - if call.Argument(1).IsNumber() { - maxSleep, _ = call.Argument(1).ToInteger() - } else { - throwJSExeception("expected number as second argument") - } - } - - // go through the console, this will allow web3 to call the appropriate - // callbacks if a delayed response or notification is received. - currentBlockNr := func() int64 { - result, err := call.Otto.Run("eth.blockNumber") - if err != nil { - throwJSExeception(err.Error()) - } - blockNr, err := result.ToInteger() - if err != nil { - throwJSExeception(err.Error()) - } - return blockNr - } - - targetBlockNr := currentBlockNr() + nBlocks - deadline := time.Now().Add(time.Duration(maxSleep) * time.Second) - - for time.Now().Before(deadline) { - if currentBlockNr() >= targetBlockNr { - return otto.TrueValue() - } - time.Sleep(time.Second) - } - - return otto.FalseValue() -} diff --git a/console/bridge.go b/console/bridge.go new file mode 100644 index 000000000..b23e06837 --- /dev/null +++ b/console/bridge.go @@ -0,0 +1,317 @@ +// Copyright 2015 The go-ethereum Authors +// This file is part of the go-ethereum library. +// +// The go-ethereum library is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// The go-ethereum library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with the go-ethereum library. If not, see . + +package console + +import ( + "encoding/json" + "fmt" + "io" + "time" + + "github.com/ethereum/go-ethereum/logger" + "github.com/ethereum/go-ethereum/logger/glog" + "github.com/ethereum/go-ethereum/rpc" + "github.com/robertkrimen/otto" +) + +// bridge is a collection of JavaScript utility methods to bride the .js runtime +// environment and the Go RPC connection backing the remote method calls. +type bridge struct { + client rpc.Client // RPC client to execute Ethereum requests through + prompter UserPrompter // Input prompter to allow interactive user feedback + printer io.Writer // Output writer to serialize any display strings to +} + +// newBridge creates a new JavaScript wrapper around an RPC client. +func newBridge(client rpc.Client, prompter UserPrompter, printer io.Writer) *bridge { + return &bridge{ + client: client, + prompter: prompter, + printer: printer, + } +} + +// NewAccount is a wrapper around the personal.newAccount RPC method that uses a +// non-echoing password prompt to aquire the passphrase and executes the original +// RPC method (saved in jeth.newAccount) with it to actually execute the RPC call. +func (b *bridge) NewAccount(call otto.FunctionCall) (response otto.Value) { + var ( + password string + confirm string + err error + ) + switch { + // No password was specified, prompt the user for it + case len(call.ArgumentList) == 0: + if password, err = b.prompter.PromptPassword("Passphrase: "); err != nil { + throwJSException(err.Error()) + } + if confirm, err = b.prompter.PromptPassword("Repeat passphrase: "); err != nil { + throwJSException(err.Error()) + } + if password != confirm { + throwJSException("passphrases don't match!") + } + + // A single string password was specified, use that + case len(call.ArgumentList) == 1 && call.Argument(0).IsString(): + password, _ = call.Argument(0).ToString() + + // Otherwise fail with some error + default: + throwJSException("expected 0 or 1 string argument") + } + // Password aquired, execute the call and return + ret, err := call.Otto.Call("jeth.newAccount", nil, password) + if err != nil { + throwJSException(err.Error()) + } + return ret +} + +// UnlockAccount is a wrapper around the personal.unlockAccount RPC method that +// uses a non-echoing password prompt to aquire the passphrase and executes the +// original RPC method (saved in jeth.unlockAccount) with it to actually execute +// the RPC call. +func (b *bridge) UnlockAccount(call otto.FunctionCall) (response otto.Value) { + // Make sure we have an account specified to unlock + if !call.Argument(0).IsString() { + throwJSException("first argument must be the account to unlock") + } + account := call.Argument(0) + + // If password is not given or is the null value, prompt the user for it + var passwd otto.Value + + if call.Argument(1).IsUndefined() || call.Argument(1).IsNull() { + fmt.Fprintf(b.printer, "Unlock account %s\n", account) + if input, err := b.prompter.PromptPassword("Passphrase: "); err != nil { + throwJSException(err.Error()) + } else { + passwd, _ = otto.ToValue(input) + } + } else { + if !call.Argument(1).IsString() { + throwJSException("password must be a string") + } + passwd = call.Argument(1) + } + // Third argument is the duration how long the account must be unlocked. + duration := otto.NullValue() + if call.Argument(2).IsDefined() && !call.Argument(2).IsNull() { + if !call.Argument(2).IsNumber() { + throwJSException("unlock duration must be a number") + } + duration = call.Argument(2) + } + // Send the request to the backend and return + val, err := call.Otto.Call("jeth.unlockAccount", nil, account, passwd, duration) + if err != nil { + throwJSException(err.Error()) + } + return val +} + +// Sleep will block the console for the specified number of seconds. +func (b *bridge) Sleep(call otto.FunctionCall) (response otto.Value) { + if call.Argument(0).IsNumber() { + sleep, _ := call.Argument(0).ToInteger() + time.Sleep(time.Duration(sleep) * time.Second) + return otto.TrueValue() + } + return throwJSException("usage: sleep()") +} + +// 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) { + var ( + blocks = int64(0) + sleep = int64(9999999999999999) // indefinitely + ) + // Parse the input parameters for the sleep + nArgs := len(call.ArgumentList) + if nArgs == 0 { + throwJSException("usage: sleepBlocks([, 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 nArgs >= 2 { + if call.Argument(1).IsNumber() { + sleep, _ = call.Argument(1).ToInteger() + } else { + throwJSException("expected number as second argument") + } + } + // 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) + + for time.Now().Before(deadline) { + if blockNumber() >= targetBlockNr { + return otto.TrueValue() + } + time.Sleep(time.Second) + } + return otto.FalseValue() +} + +// Send will serialize the first argument, send it to the node and returns the response. +func (b *bridge) Send(call otto.FunctionCall) (response otto.Value) { + // Ensure that we've got a batch request (array) or a single request (object) + arg := call.Argument(0).Object() + if arg == nil || (arg.Class() != "Array" && arg.Class() != "Object") { + throwJSException("request must be an object or array") + } + // Convert the otto VM arguments to Go values + data, err := call.Otto.Call("JSON.stringify", nil, arg) + if err != nil { + throwJSException(err.Error()) + } + reqjson, err := data.ToString() + if err != nil { + throwJSException(err.Error()) + } + + var ( + reqs []rpc.JSONRequest + batch = true + ) + if err = json.Unmarshal([]byte(reqjson), &reqs); err != nil { + // single request? + reqs = make([]rpc.JSONRequest, 1) + if err = json.Unmarshal([]byte(reqjson), &reqs[0]); err != nil { + throwJSException("invalid request") + } + batch = false + } + // Iteratively execute the requests + call.Otto.Set("response_len", len(reqs)) + call.Otto.Run("var ret_response = new Array(response_len);") + + for i, req := range reqs { + // Execute the RPC request and parse the reply + if err = b.client.Send(&req); err != nil { + return newErrorResponse(call, -32603, err.Error(), req.Id) + } + result := make(map[string]interface{}) + if err = b.client.Recv(&result); err != nil { + return newErrorResponse(call, -32603, err.Error(), req.Id) + } + // Feed the reply back into the JavaScript runtime environment + id, _ := result["id"] + jsonver, _ := result["jsonrpc"] + + call.Otto.Set("ret_id", id) + call.Otto.Set("ret_jsonrpc", jsonver) + call.Otto.Set("response_idx", i) + + if res, ok := result["result"]; ok { + payload, _ := json.Marshal(res) + call.Otto.Set("ret_result", string(payload)) + response, err = call.Otto.Run(` + ret_response[response_idx] = { jsonrpc: ret_jsonrpc, id: ret_id, result: JSON.parse(ret_result) }; + `) + continue + } + if res, ok := result["error"]; ok { + payload, _ := json.Marshal(res) + call.Otto.Set("ret_result", string(payload)) + response, err = call.Otto.Run(` + ret_response[response_idx] = { jsonrpc: ret_jsonrpc, id: ret_id, error: JSON.parse(ret_result) }; + `) + continue + } + return newErrorResponse(call, -32603, fmt.Sprintf("Invalid response"), new(int64)) + } + // Convert single requests back from batch ones + if !batch { + call.Otto.Run("ret_response = ret_response[0];") + } + // Execute any registered callbacks + if call.Argument(1).IsObject() { + call.Otto.Set("callback", call.Argument(1)) + call.Otto.Run(` + if (Object.prototype.toString.call(callback) == '[object Function]') { + callback(null, ret_response); + } + `) + } + return +} + +// 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 { + glog.V(logger.Error).Infof("Failed to serialize JavaScript exception %v: %v", msg, err) + } + panic(val) +} + +// newErrorResponse creates a JSON RPC error response for a specific request id, +// containing the specified error code and error message. Beside returning the +// error to the caller, it also sets the ret_error and ret_response JavaScript +// variables. +func newErrorResponse(call otto.FunctionCall, code int, msg string, id interface{}) (response otto.Value) { + // Bundle the error into a JSON RPC call response + res := rpc.JSONErrResponse{ + Version: rpc.JSONRPCVersion, + Id: id, + Error: rpc.JSONError{ + Code: code, + Message: msg, + }, + } + // Serialize the error response into JavaScript variables + errObj, err := json.Marshal(res.Error) + if err != nil { + glog.V(logger.Error).Infof("Failed to serialize JSON RPC error: %v", err) + } + resObj, err := json.Marshal(res) + if err != nil { + glog.V(logger.Error).Infof("Failed to serialize JSON RPC error response: %v", err) + } + + if _, err = call.Otto.Run("ret_error = " + string(errObj)); err != nil { + glog.V(logger.Error).Infof("Failed to set `ret_error` to the occurred error: %v", err) + } + resVal, err := call.Otto.Run("ret_response = " + string(resObj)) + if err != nil { + glog.V(logger.Error).Infof("Failed to set `ret_response` to the JSON RPC response: %v", err) + } + return resVal +} diff --git a/console/console.go b/console/console.go new file mode 100644 index 000000000..37c9f0afa --- /dev/null +++ b/console/console.go @@ -0,0 +1,369 @@ +// Copyright 2015 The go-ethereum Authors +// This file is part of the go-ethereum library. +// +// The go-ethereum library is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// The go-ethereum library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with the go-ethereum library. If not, see . + +package console + +import ( + "fmt" + "io" + "io/ioutil" + "os" + "os/signal" + "path/filepath" + "regexp" + "sort" + "strings" + + "github.com/ethereum/go-ethereum/internal/jsre" + "github.com/ethereum/go-ethereum/internal/web3ext" + "github.com/ethereum/go-ethereum/rpc" + "github.com/peterh/liner" + "github.com/robertkrimen/otto" +) + +var ( + passwordRegexp = regexp.MustCompile("personal.[nus]") + onlyWhitespace = regexp.MustCompile("^\\s*$") + exit = regexp.MustCompile("^\\s*exit\\s*;*\\s*$") +) + +// HistoryFile is the file within the data directory to store input scrollback. +const HistoryFile = "history" + +// DefaultPrompt is the default prompt line prefix to use for user input querying. +const DefaultPrompt = "> " + +// Config is te collection of configurations to fine tune the behavior of the +// JavaScript console. +type Config struct { + DataDir string // Data directory to store the console history at + DocRoot string // Filesystem path from where to load JavaScript files from + Client rpc.Client // RPC client to execute Ethereum requests through + Prompt string // Input prompt prefix string (defaults to DefaultPrompt) + Prompter UserPrompter // Input prompter to allow interactive user feedback (defaults to TerminalPrompter) + Printer io.Writer // Output writer to serialize any display strings to (defaults to os.Stdout) + Preload []string // Absolute paths to JavaScript files to preload +} + +// Console is a JavaScript interpreted runtime environment. It is a fully fleged +// JavaScript console attached to a running node via an external or in-process RPC +// client. +type Console struct { + client rpc.Client // RPC client to execute Ethereum requests through + jsre *jsre.JSRE // JavaScript runtime environment running the interpreter + prompt string // Input prompt prefix string + prompter UserPrompter // Input prompter to allow interactive user feedback + histPath string // Absolute path to the console scrollback history + history []string // Scroll history maintained by the console + printer io.Writer // Output writer to serialize any display strings to +} + +func New(config Config) (*Console, error) { + // Handle unset config values gracefully + if config.Prompter == nil { + config.Prompter = TerminalPrompter + } + if config.Prompt == "" { + config.Prompt = DefaultPrompt + } + if config.Printer == nil { + config.Printer = os.Stdout + } + // Initialize the console and return + console := &Console{ + client: config.Client, + jsre: jsre.New(config.DocRoot, config.Printer), + prompt: config.Prompt, + prompter: config.Prompter, + printer: config.Printer, + histPath: filepath.Join(config.DataDir, HistoryFile), + } + if err := console.init(config.Preload); err != nil { + return nil, err + } + return console, nil +} + +// init retrieves the available APIs from the remote RPC provider and initializes +// the console's JavaScript namespaces based on the exposed modules. +func (c *Console) init(preload []string) error { + // Initialize the JavaScript <-> Go RPC bridge + bridge := newBridge(c.client, c.prompter, c.printer) + c.jsre.Set("jeth", struct{}{}) + + jethObj, _ := c.jsre.Get("jeth") + jethObj.Object().Set("send", bridge.Send) + jethObj.Object().Set("sendAsync", bridge.Send) + + consoleObj, _ := c.jsre.Get("console") + consoleObj.Object().Set("log", c.consoleOutput) + consoleObj.Object().Set("error", c.consoleOutput) + + // Load all the internal utility JavaScript libraries + if err := c.jsre.Compile("bignumber.js", jsre.BigNumber_JS); err != nil { + return fmt.Errorf("bignumber.js: %v", err) + } + if err := c.jsre.Compile("web3.js", jsre.Web3_JS); err != nil { + return fmt.Errorf("web3.js: %v", err) + } + if _, err := c.jsre.Run("var Web3 = require('web3');"); err != nil { + return fmt.Errorf("web3 require: %v", err) + } + if _, err := c.jsre.Run("var web3 = new Web3(jeth);"); err != nil { + return fmt.Errorf("web3 provider: %v", err) + } + // Load the supported APIs into the JavaScript runtime environment + apis, err := c.client.SupportedModules() + if err != nil { + return fmt.Errorf("api modules: %v", err) + } + flatten := "var eth = web3.eth; var personal = web3.personal; " + for api := range apis { + if api == "web3" { + continue // manually mapped or ignore + } + if file, ok := web3ext.Modules[api]; ok { + if err = c.jsre.Compile(fmt.Sprintf("%s.js", api), file); err != nil { + return fmt.Errorf("%s.js: %v", api, err) + } + flatten += fmt.Sprintf("var %s = web3.%s; ", api, api) + } + } + if _, err = c.jsre.Run(flatten); err != nil { + return fmt.Errorf("namespace flattening: %v", err) + } + // Initialize the global name register (disabled for now) + //c.jsre.Run(`var GlobalRegistrar = eth.contract(` + registrar.GlobalRegistrarAbi + `); registrar = GlobalRegistrar.at("` + registrar.GlobalRegistrarAddr + `");`) + + // If the console is in interactive mode, instrument password related methods to query the user + if c.prompter != nil { + // Retrieve the account management object to instrument + personal, err := c.jsre.Get("personal") + if err != nil { + return err + } + // Override the unlockAccount and newAccount methods since these require user interaction. + // Assign the jeth.unlockAccount and jeth.newAccount in the Console the original web3 callbacks. + // These will be called by the jeth.* methods after they got the password from the user and send + // the original web3 request to the backend. + if obj := personal.Object(); obj != nil { // make sure the personal api is enabled over the interface + if _, err = c.jsre.Run(`jeth.unlockAccount = personal.unlockAccount;`); err != nil { + return fmt.Errorf("personal.unlockAccount: %v", err) + } + if _, err = c.jsre.Run(`jeth.newAccount = personal.newAccount;`); err != nil { + return fmt.Errorf("personal.newAccount: %v", err) + } + obj.Set("unlockAccount", bridge.UnlockAccount) + obj.Set("newAccount", bridge.NewAccount) + } + } + // The admin.sleep and admin.sleepBlocks are offered by the console and not by the RPC layer. + admin, err := c.jsre.Get("admin") + if err != nil { + return err + } + if obj := admin.Object(); obj != nil { // make sure the admin api is enabled over the interface + obj.Set("sleepBlocks", bridge.SleepBlocks) + obj.Set("sleep", bridge.Sleep) + } + // Preload any JavaScript files before starting the console + for _, path := range preload { + if err := c.jsre.Exec(path); err != nil { + return fmt.Errorf("%s: %v", path, jsErrorString(err)) + } + } + // Configure the console's input prompter for scrollback and tab completion + if c.prompter != nil { + if content, err := ioutil.ReadFile(c.histPath); err != nil { + c.prompter.SetScrollHistory(nil) + } else { + c.prompter.SetScrollHistory(strings.Split(string(content), "\n")) + } + c.prompter.SetWordCompleter(c.AutoCompleteInput) + } + return nil +} + +// consoleOutput is an override for the console.log and console.error methods to +// stream the output into the configured output stream instead of stdout. +func (c *Console) consoleOutput(call otto.FunctionCall) otto.Value { + output := []string{} + for _, argument := range call.ArgumentList { + output = append(output, fmt.Sprintf("%v", argument)) + } + fmt.Fprintln(c.printer, strings.Join(output, " ")) + return otto.Value{} +} + +// AutoCompleteInput is a pre-assembled word completer to be used by the user +// input prompter to provide hints to the user about the methods available. +func (c *Console) AutoCompleteInput(line string, pos int) (string, []string, string) { + // No completions can be provided for empty inputs + if len(line) == 0 || pos == 0 { + return "", nil, "" + } + // Chunck data to relevant part for autocompletion + // E.g. in case of nested lines eth.getBalance(eth.coinb + start := 0 + for start = pos - 1; start > 0; start-- { + // Skip all methods and namespaces (i.e. including te dot) + if line[start] == '.' || (line[start] >= 'a' && line[start] <= 'z') || (line[start] >= 'A' && line[start] <= 'Z') { + continue + } + // Handle web3 in a special way (i.e. other numbers aren't auto completed) + if start >= 3 && line[start-3:start] == "web3" { + start -= 3 + continue + } + // We've hit an unexpected character, autocomplete form here + start++ + break + } + return line[:start], c.jsre.CompleteKeywords(line[start:pos]), line[pos:] +} + +// Welcome show summary of current Geth instance and some metadata about the +// console's available modules. +func (c *Console) Welcome() { + // Print some generic Geth metadata + c.jsre.Run(` + (function () { + console.log("Welcome to the Geth JavaScript console!\n"); + console.log("instance: " + web3.version.node); + console.log("coinbase: " + eth.coinbase); + console.log("at block: " + eth.blockNumber + " (" + new Date(1000 * eth.getBlock(eth.blockNumber).timestamp) + ")"); + console.log(" datadir: " + admin.datadir); + })(); + `) + // List all the supported modules for the user to call + if apis, err := c.client.SupportedModules(); err == nil { + modules := make([]string, 0, len(apis)) + for api, version := range apis { + modules = append(modules, fmt.Sprintf("%s:%s", api, version)) + } + sort.Strings(modules) + c.jsre.Run("(function () { console.log(' modules: " + strings.Join(modules, " ") + "'); })();") + } + c.jsre.Run("(function () { console.log(); })();") +} + +// Evaluate executes code and pretty prints the result to the specified output +// stream. +func (c *Console) Evaluate(statement string) error { + defer func() { + if r := recover(); r != nil { + fmt.Fprintf(c.printer, "[native] error: %v\n", r) + } + }() + if err := c.jsre.Evaluate(statement, c.printer); err != nil { + fmt.Fprintf(c.printer, "%v\n", jsErrorString(err)) + return err + } + return nil +} + +// Interactive starts an interactive user session, where input is propted from +// the configured user prompter. +func (c *Console) Interactive() { + var ( + prompt = c.prompt // Current prompt line (used for multi-line inputs) + indents = 0 // Current number of input indents (used for multi-line inputs) + input = "" // Current user input + scheduler = make(chan string) // Channel to send the next prompt on and receive the input + ) + // Start a goroutine to listen for promt requests and send back inputs + go func() { + for { + // Read the next user input + line, err := c.prompter.PromptInput(<-scheduler) + if err != nil { + // In case of an error, either clear the prompt or fail + if err == liner.ErrPromptAborted { // ctrl-C + prompt, indents, input = c.prompt, 0, "" + scheduler <- "" + continue + } + close(scheduler) + return + } + // User input retrieved, send for interpretation and loop + scheduler <- line + } + }() + // Monitor Ctrl-C too in case the input is empty and we need to bail + abort := make(chan os.Signal, 1) + signal.Notify(abort, os.Interrupt) + + // Start sending prompts to the user and reading back inputs + for { + // Send the next prompt, triggering an input read and process the result + scheduler <- prompt + select { + case <-abort: + // User forcefully quite the console + fmt.Fprintln(c.printer, "caught interrupt, exiting") + return + + case line, ok := <-scheduler: + // User input was returned by the prompter, handle special cases + if !ok || (indents <= 0 && exit.MatchString(input)) { + return + } + if onlyWhitespace.MatchString(line) { + continue + } + // Append the line to the input and check for multi-line interpretation + input += line + "\n" + + indents = strings.Count(input, "{") + strings.Count(input, "(") - strings.Count(input, "}") - strings.Count(input, ")") + if indents <= 0 { + prompt = c.prompt + } else { + prompt = strings.Repeat("..", indents*2) + " " + } + // If all the needed lines are present, save the command and run + if indents <= 0 { + if len(input) != 0 && input[0] != ' ' && !passwordRegexp.MatchString(input) { + c.history = append(c.history, input[:len(input)-1]) + } + c.Evaluate(input) + input = "" + } + } + } +} + +// Execute runs the JavaScript file specified as the argument. +func (c *Console) Execute(path string) error { + return c.jsre.Exec(path) +} + +// Stop cleans up the console and terminates the runtime envorinment. +func (c *Console) Stop(graceful bool) error { + if err := ioutil.WriteFile(c.histPath, []byte(strings.Join(c.history, "\n")), os.ModePerm); err != nil { + return err + } + c.jsre.Stop(graceful) + return nil +} + +// jsErrorString adds a backtrace to errors generated by otto. +func jsErrorString(err error) string { + if ottoErr, ok := err.(*otto.Error); ok { + return ottoErr.String() + } + return err.Error() +} diff --git a/console/console_test.go b/console/console_test.go new file mode 100644 index 000000000..5d38331e8 --- /dev/null +++ b/console/console_test.go @@ -0,0 +1,283 @@ +// Copyright 2015 The go-ethereum Authors +// This file is part of the go-ethereum library. +// +// The go-ethereum library is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// The go-ethereum library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with the go-ethereum library. If not, see . + +package console + +import ( + "bytes" + "errors" + "fmt" + "io/ioutil" + "math/big" + "os" + "path/filepath" + "strings" + "testing" + "time" + + "github.com/ethereum/go-ethereum/accounts" + "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/core" + "github.com/ethereum/go-ethereum/eth" + "github.com/ethereum/go-ethereum/internal/jsre" + "github.com/ethereum/go-ethereum/node" +) + +const ( + testInstance = "console-tester" + testAddress = "0x8605cdbbdb6d264aa742e77020dcbc58fcdce182" +) + +// hookedPrompter implements UserPrompter to simulate use input via channels. +type hookedPrompter struct { + scheduler chan string +} + +func (p *hookedPrompter) PromptInput(prompt string) (string, error) { + // Send the prompt to the tester + select { + case p.scheduler <- prompt: + case <-time.After(time.Second): + return "", errors.New("prompt timeout") + } + // Retrieve the response and feed to the console + select { + case input := <-p.scheduler: + return input, nil + case <-time.After(time.Second): + return "", errors.New("input timeout") + } +} + +func (p *hookedPrompter) PromptPassword(prompt string) (string, error) { + return "", errors.New("not implemented") +} +func (p *hookedPrompter) PromptConfirm(prompt string) (bool, error) { + return false, errors.New("not implemented") +} +func (p *hookedPrompter) SetScrollHistory(history []string) {} +func (p *hookedPrompter) SetWordCompleter(completer WordCompleter) {} + +// tester is a console test environment for the console tests to operate on. +type tester struct { + workspace string + stack *node.Node + ethereum *eth.Ethereum + console *Console + input *hookedPrompter + output *bytes.Buffer + + lastConfirm string +} + +// newTester creates a test environment based on which the console can operate. +// Please ensure you call Close() on the returned tester to avoid leaks. +func newTester(t *testing.T, confOverride func(*eth.Config)) *tester { + // Create a temporary storage for the node keys and initialize it + workspace, err := ioutil.TempDir("", "console-tester-") + if err != nil { + t.Fatalf("failed to create temporary keystore: %v", err) + } + accman := accounts.NewPlaintextManager(filepath.Join(workspace, "keystore")) + + // Create a networkless protocol stack and start an Ethereum service within + stack, err := node.New(&node.Config{DataDir: workspace, Name: testInstance, NoDiscovery: true}) + if err != nil { + t.Fatalf("failed to create node: %v", err) + } + ethConf := ð.Config{ + ChainConfig: &core.ChainConfig{HomesteadBlock: new(big.Int)}, + Etherbase: common.HexToAddress(testAddress), + AccountManager: accman, + PowTest: true, + } + if confOverride != nil { + confOverride(ethConf) + } + if err = stack.Register(func(ctx *node.ServiceContext) (node.Service, error) { return eth.New(ctx, ethConf) }); err != nil { + t.Fatalf("failed to register Ethereum protocol: %v", err) + } + // Start the node and assemble the JavaScript console around it + if err = stack.Start(); err != nil { + t.Fatalf("failed to start test stack: %v", err) + } + client, err := stack.Attach() + if err != nil { + t.Fatalf("failed to attach to node: %v", err) + } + prompter := &hookedPrompter{scheduler: make(chan string)} + printer := new(bytes.Buffer) + + console, err := New(Config{ + DataDir: stack.DataDir(), + DocRoot: "testdata", + Client: client, + Prompter: prompter, + Printer: printer, + Preload: []string{"preload.js"}, + }) + if err != nil { + t.Fatalf("failed to create JavaScript console: %v", err) + } + // Create the final tester and return + var ethereum *eth.Ethereum + stack.Service(ðereum) + + return &tester{ + workspace: workspace, + stack: stack, + ethereum: ethereum, + console: console, + input: prompter, + output: printer, + } +} + +// Close cleans up any temporary data folders and held resources. +func (env *tester) Close(t *testing.T) { + if err := env.console.Stop(false); err != nil { + t.Errorf("failed to stop embedded console: %v", err) + } + if err := env.stack.Stop(); err != nil { + t.Errorf("failed to stop embedded node: %v", err) + } + os.RemoveAll(env.workspace) +} + +// Tests that the node lists the correct welcome message, notably that it contains +// the instance name, coinbase account, block number, data directory and supported +// console modules. +func TestWelcome(t *testing.T) { + tester := newTester(t, nil) + defer tester.Close(t) + + tester.console.Welcome() + + output := string(tester.output.Bytes()) + if want := "Welcome"; !strings.Contains(output, want) { + t.Fatalf("console output missing welcome message: have\n%s\nwant also %s", output, want) + } + if want := fmt.Sprintf("instance: %s", testInstance); !strings.Contains(output, want) { + t.Fatalf("console output missing instance: have\n%s\nwant also %s", output, want) + } + if want := fmt.Sprintf("coinbase: %s", testAddress); !strings.Contains(output, want) { + t.Fatalf("console output missing coinbase: have\n%s\nwant also %s", output, want) + } + if want := "at block: 0"; !strings.Contains(output, want) { + t.Fatalf("console output missing sync status: have\n%s\nwant also %s", output, want) + } + if want := fmt.Sprintf("datadir: %s", tester.workspace); !strings.Contains(output, want) { + t.Fatalf("console output missing coinbase: have\n%s\nwant also %s", output, want) + } +} + +// Tests that JavaScript statement evaluation works as intended. +func TestEvaluate(t *testing.T) { + tester := newTester(t, nil) + defer tester.Close(t) + + tester.console.Evaluate("2 + 2") + if output := string(tester.output.Bytes()); !strings.Contains(output, "4") { + t.Fatalf("statement evaluation failed: have %s, want %s", output, "4") + } +} + +// Tests that the console can be used in interactive mode. +func TestInteractive(t *testing.T) { + // Create a tester and run an interactive console in the background + tester := newTester(t, nil) + defer tester.Close(t) + + go tester.console.Interactive() + + // Wait for a promt and send a statement back + select { + case <-tester.input.scheduler: + case <-time.After(time.Second): + t.Fatalf("initial prompt timeout") + } + select { + case tester.input.scheduler <- "2+2": + case <-time.After(time.Second): + t.Fatalf("input feedback timeout") + } + // Wait for the second promt and ensure first statement was evaluated + select { + case <-tester.input.scheduler: + case <-time.After(time.Second): + t.Fatalf("secondary prompt timeout") + } + if output := string(tester.output.Bytes()); !strings.Contains(output, "4") { + t.Fatalf("statement evaluation failed: have %s, want %s", output, "4") + } +} + +// Tests that preloaded JavaScript files have been executed before user is given +// input. +func TestPreload(t *testing.T) { + tester := newTester(t, nil) + defer tester.Close(t) + + tester.console.Evaluate("preloaded") + if output := string(tester.output.Bytes()); !strings.Contains(output, "some-preloaded-string") { + t.Fatalf("preloaded variable missing: have %s, want %s", output, "some-preloaded-string") + } +} + +// Tests that JavaScript scripts can be executes from the configured asset path. +func TestExecute(t *testing.T) { + tester := newTester(t, nil) + defer tester.Close(t) + + tester.console.Execute("exec.js") + + tester.console.Evaluate("execed") + if output := string(tester.output.Bytes()); !strings.Contains(output, "some-executed-string") { + t.Fatalf("execed variable missing: have %s, want %s", output, "some-executed-string") + } +} + +// Tests that the JavaScript objects returned by statement executions are properly +// pretty printed instead of just displaing "[object]". +func TestPrettyPrint(t *testing.T) { + tester := newTester(t, nil) + defer tester.Close(t) + + tester.console.Evaluate("obj = {int: 1, string: 'two', list: [3, 3, 3], obj: {null: null, func: function(){}}}") + + // Define some specially formatted fields + var ( + one = jsre.NumberColor("1") + two = jsre.StringColor("\"two\"") + three = jsre.NumberColor("3") + null = jsre.SpecialColor("null") + fun = jsre.FunctionColor("function()") + ) + // Assemble the actual output we're after and verify + want := `{ + int: ` + one + `, + list: [` + three + `, ` + three + `, ` + three + `], + obj: { + null: ` + null + `, + func: ` + fun + ` + }, + string: ` + two + ` +} +` + if output := string(tester.output.Bytes()); output != want { + t.Fatalf("pretty print mismatch: have %s, want %s", output, want) + } +} diff --git a/console/prompter.go b/console/prompter.go new file mode 100644 index 000000000..5039e8b1c --- /dev/null +++ b/console/prompter.go @@ -0,0 +1,156 @@ +// Copyright 2016 The go-ethereum Authors +// This file is part of the go-ethereum library. +// +// The go-ethereum library is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// The go-ethereum library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with the go-ethereum library. If not, see . + +package console + +import ( + "fmt" + "strings" + + "github.com/peterh/liner" +) + +// TerminalPrompter holds the stdin line reader (also using stdout for printing +// prompts). Only this reader may be used for input because it keeps an internal +// buffer. +var TerminalPrompter = newTerminalPrompter() + +// UserPrompter defines the methods needed by the console to promt the user for +// various types of inputs. +type UserPrompter interface { + // PromptInput displays the given prompt to the user and requests some textual + // data to be entered, returning the input of the user. + PromptInput(prompt string) (string, error) + + // PromptPassword displays the given prompt to the user and requests some textual + // data to be entered, but one which must not be echoed out into the terminal. + // The method returns the input provided by the user. + PromptPassword(prompt string) (string, error) + + // PromptConfirm displays the given prompt to the user and requests a boolean + // choice to be made, returning that choice. + PromptConfirm(prompt string) (bool, error) + + // SetScrollHistory sets the the input scrollback history that the prompter will + // allow the user to scoll back to. + SetScrollHistory(history []string) + + // SetWordCompleter sets the completion function that the prompter will call to + // fetch completion candidates when the user presses tab. + SetWordCompleter(completer WordCompleter) +} + +// WordCompleter takes the currently edited line with the cursor position and +// returns the completion candidates for the partial word to be completed. If +// the line is "Hello, wo!!!" and the cursor is before the first '!', ("Hello, +// wo!!!", 9) is passed to the completer which may returns ("Hello, ", {"world", +// "Word"}, "!!!") to have "Hello, world!!!". +type WordCompleter func(line string, pos int) (string, []string, string) + +// terminalPrompter is a UserPrompter backed by the liner package. It supports +// prompting the user for various input, among others for non-echoing password +// input. +type terminalPrompter struct { + *liner.State + warned bool + supported bool + normalMode liner.ModeApplier + rawMode liner.ModeApplier +} + +// newTerminalPrompter creates a liner based user input prompter working off the +// standard input and output streams. +func newTerminalPrompter() *terminalPrompter { + r := new(terminalPrompter) + // Get the original mode before calling NewLiner. + // This is usually regular "cooked" mode where characters echo. + normalMode, _ := liner.TerminalMode() + // Turn on liner. It switches to raw mode. + r.State = liner.NewLiner() + rawMode, err := liner.TerminalMode() + if err != nil || !liner.TerminalSupported() { + r.supported = false + } else { + r.supported = true + r.normalMode = normalMode + r.rawMode = rawMode + // Switch back to normal mode while we're not prompting. + normalMode.ApplyMode() + } + r.SetCtrlCAborts(true) + r.SetTabCompletionStyle(liner.TabPrints) + + return r +} + +// PromptInput displays the given prompt to the user and requests some textual +// data to be entered, returning the input of the user. +func (r *terminalPrompter) PromptInput(prompt string) (string, error) { + if r.supported { + r.rawMode.ApplyMode() + defer r.normalMode.ApplyMode() + } else { + // liner tries to be smart about printing the prompt + // and doesn't print anything if input is redirected. + // Un-smart it by printing the prompt always. + fmt.Print(prompt) + prompt = "" + defer fmt.Println() + } + return r.State.Prompt(prompt) +} + +// PromptPassword displays the given prompt to the user and requests some textual +// data to be entered, but one which must not be echoed out into the terminal. +// The method returns the input provided by the user. +func (r *terminalPrompter) PromptPassword(prompt string) (passwd string, err error) { + if r.supported { + r.rawMode.ApplyMode() + defer r.normalMode.ApplyMode() + return r.State.PasswordPrompt(prompt) + } + if !r.warned { + fmt.Println("!! Unsupported terminal, password will be echoed.") + r.warned = true + } + // Just as in Prompt, handle printing the prompt here instead of relying on liner. + fmt.Print(prompt) + passwd, err = r.State.Prompt("") + fmt.Println() + return passwd, err +} + +// PromptConfirm displays the given prompt to the user and requests a boolean +// choice to be made, returning that choice. +func (r *terminalPrompter) PromptConfirm(prompt string) (bool, error) { + input, err := r.Prompt(prompt + " [y/N] ") + if len(input) > 0 && strings.ToUpper(input[:1]) == "Y" { + return true, nil + } + return false, err +} + +// SetScrollHistory sets the the input scrollback history that the prompter will +// allow the user to scoll back to. +func (r *terminalPrompter) SetScrollHistory(history []string) { + r.State.ReadHistory(strings.NewReader(strings.Join(history, "\n"))) +} + +// SetWordCompleter sets the completion function that the prompter will call to +// fetch completion candidates when the user presses tab. +func (r *terminalPrompter) SetWordCompleter(completer WordCompleter) { + r.State.SetWordCompleter(liner.WordCompleter(completer)) +} diff --git a/console/testdata/exec.js b/console/testdata/exec.js new file mode 100644 index 000000000..59e34d7c4 --- /dev/null +++ b/console/testdata/exec.js @@ -0,0 +1 @@ +var execed = "some-executed-string"; diff --git a/console/testdata/preload.js b/console/testdata/preload.js new file mode 100644 index 000000000..556793970 --- /dev/null +++ b/console/testdata/preload.js @@ -0,0 +1 @@ +var preloaded = "some-preloaded-string"; diff --git a/jsre/bignumber_js.go b/internal/jsre/bignumber_js.go similarity index 100% rename from jsre/bignumber_js.go rename to internal/jsre/bignumber_js.go diff --git a/jsre/completion.go b/internal/jsre/completion.go similarity index 100% rename from jsre/completion.go rename to internal/jsre/completion.go diff --git a/jsre/completion_test.go b/internal/jsre/completion_test.go similarity index 98% rename from jsre/completion_test.go rename to internal/jsre/completion_test.go index 92af5ddb6..ccbd73dcc 100644 --- a/jsre/completion_test.go +++ b/internal/jsre/completion_test.go @@ -17,12 +17,13 @@ package jsre import ( + "os" "reflect" "testing" ) func TestCompleteKeywords(t *testing.T) { - re := New("") + re := New("", os.Stdout) re.Run(` function theClass() { this.foo = 3; diff --git a/jsre/ethereum_js.go b/internal/jsre/ethereum_js.go similarity index 100% rename from jsre/ethereum_js.go rename to internal/jsre/ethereum_js.go diff --git a/jsre/jsre.go b/internal/jsre/jsre.go similarity index 95% rename from jsre/jsre.go rename to internal/jsre/jsre.go index 59730bc0d..8d8f4fc2a 100644 --- a/jsre/jsre.go +++ b/internal/jsre/jsre.go @@ -21,6 +21,7 @@ import ( crand "crypto/rand" "encoding/binary" "fmt" + "io" "io/ioutil" "math/rand" "sync" @@ -40,6 +41,7 @@ It provides some helper functions to */ type JSRE struct { assetPath string + output io.Writer evalQueue chan *evalReq stopEventLoop chan bool loopWg sync.WaitGroup @@ -60,9 +62,10 @@ type evalReq struct { } // runtime must be stopped with Stop() after use and cannot be used after stopping -func New(assetPath string) *JSRE { +func New(assetPath string, output io.Writer) *JSRE { re := &JSRE{ assetPath: assetPath, + output: output, evalQueue: make(chan *evalReq), stopEventLoop: make(chan bool), } @@ -292,19 +295,21 @@ func (self *JSRE) loadScript(call otto.FunctionCall) otto.Value { return otto.TrueValue() } -// EvalAndPrettyPrint evaluates code and pretty prints the result to -// standard output. -func (self *JSRE) EvalAndPrettyPrint(code string) (err error) { +// Evaluate executes code and pretty prints the result to the specified output +// stream. +func (self *JSRE) Evaluate(code string, w io.Writer) error { + var fail error + self.Do(func(vm *otto.Otto) { - var val otto.Value - val, err = vm.Run(code) + val, err := vm.Run(code) if err != nil { - return + fail = err + } else { + prettyPrint(vm, val, w) + fmt.Fprintln(w) } - prettyPrint(vm, val) - fmt.Println() }) - return err + return fail } // Compile compiles and then runs a piece of JS code. diff --git a/jsre/jsre_test.go b/internal/jsre/jsre_test.go similarity index 98% rename from jsre/jsre_test.go rename to internal/jsre/jsre_test.go index ffb6999db..bcb6e0dd2 100644 --- a/jsre/jsre_test.go +++ b/internal/jsre/jsre_test.go @@ -51,7 +51,7 @@ func newWithTestJS(t *testing.T, testjs string) (*JSRE, string) { t.Fatal("cannot create test.js:", err) } } - return New(dir), dir + return New(dir, os.Stdout), dir } func TestExec(t *testing.T) { @@ -102,7 +102,7 @@ func TestNatto(t *testing.T) { } func TestBind(t *testing.T) { - jsre := New("") + jsre := New("", os.Stdout) defer jsre.Stop(false) jsre.Bind("no", &testNativeObjectBinding{}) diff --git a/jsre/pretty.go b/internal/jsre/pretty.go similarity index 77% rename from jsre/pretty.go rename to internal/jsre/pretty.go index cd7fa5232..cf4bf2cf8 100644 --- a/jsre/pretty.go +++ b/internal/jsre/pretty.go @@ -18,6 +18,7 @@ package jsre import ( "fmt" + "io" "sort" "strconv" "strings" @@ -32,10 +33,10 @@ const ( ) var ( - functionColor = color.New(color.FgMagenta) - specialColor = color.New(color.Bold) - numberColor = color.New(color.FgRed) - stringColor = color.New(color.FgGreen) + FunctionColor = color.New(color.FgMagenta).SprintfFunc() + SpecialColor = color.New(color.Bold).SprintfFunc() + NumberColor = color.New(color.FgRed).SprintfFunc() + StringColor = color.New(color.FgGreen).SprintfFunc() ) // these fields are hidden when printing objects. @@ -50,19 +51,22 @@ var boringKeys = map[string]bool{ } // prettyPrint writes value to standard output. -func prettyPrint(vm *otto.Otto, value otto.Value) { - ppctx{vm}.printValue(value, 0, false) +func prettyPrint(vm *otto.Otto, value otto.Value, w io.Writer) { + ppctx{vm: vm, w: w}.printValue(value, 0, false) } -func prettyPrintJS(call otto.FunctionCall) otto.Value { +func prettyPrintJS(call otto.FunctionCall, w io.Writer) otto.Value { for _, v := range call.ArgumentList { - prettyPrint(call.Otto, v) - fmt.Println() + prettyPrint(call.Otto, v, w) + fmt.Fprintln(w) } return otto.UndefinedValue() } -type ppctx struct{ vm *otto.Otto } +type ppctx struct { + vm *otto.Otto + w io.Writer +} func (ctx ppctx) indent(level int) string { return strings.Repeat(indentString, level) @@ -73,22 +77,22 @@ func (ctx ppctx) printValue(v otto.Value, level int, inArray bool) { case v.IsObject(): ctx.printObject(v.Object(), level, inArray) case v.IsNull(): - specialColor.Print("null") + fmt.Fprint(ctx.w, SpecialColor("null")) case v.IsUndefined(): - specialColor.Print("undefined") + fmt.Fprint(ctx.w, SpecialColor("undefined")) case v.IsString(): s, _ := v.ToString() - stringColor.Printf("%q", s) + fmt.Fprint(ctx.w, StringColor("%q", s)) case v.IsBoolean(): b, _ := v.ToBoolean() - specialColor.Printf("%t", b) + fmt.Fprint(ctx.w, SpecialColor("%t", b)) case v.IsNaN(): - numberColor.Printf("NaN") + fmt.Fprint(ctx.w, NumberColor("NaN")) case v.IsNumber(): s, _ := v.ToString() - numberColor.Printf("%s", s) + fmt.Fprint(ctx.w, NumberColor("%s", s)) default: - fmt.Printf("") + fmt.Fprint(ctx.w, "") } } @@ -98,75 +102,75 @@ func (ctx ppctx) printObject(obj *otto.Object, level int, inArray bool) { lv, _ := obj.Get("length") len, _ := lv.ToInteger() if len == 0 { - fmt.Printf("[]") + fmt.Fprintf(ctx.w, "[]") return } if level > maxPrettyPrintLevel { - fmt.Print("[...]") + fmt.Fprint(ctx.w, "[...]") return } - fmt.Print("[") + fmt.Fprint(ctx.w, "[") for i := int64(0); i < len; i++ { el, err := obj.Get(strconv.FormatInt(i, 10)) if err == nil { ctx.printValue(el, level+1, true) } if i < len-1 { - fmt.Printf(", ") + fmt.Fprintf(ctx.w, ", ") } } - fmt.Print("]") + fmt.Fprint(ctx.w, "]") case "Object": // Print values from bignumber.js as regular numbers. if ctx.isBigNumber(obj) { - numberColor.Print(toString(obj)) + fmt.Fprint(ctx.w, NumberColor("%s", toString(obj))) return } // Otherwise, print all fields indented, but stop if we're too deep. keys := ctx.fields(obj) if len(keys) == 0 { - fmt.Print("{}") + fmt.Fprint(ctx.w, "{}") return } if level > maxPrettyPrintLevel { - fmt.Print("{...}") + fmt.Fprint(ctx.w, "{...}") return } - fmt.Println("{") + fmt.Fprintln(ctx.w, "{") for i, k := range keys { v, _ := obj.Get(k) - fmt.Printf("%s%s: ", ctx.indent(level+1), k) + fmt.Fprintf(ctx.w, "%s%s: ", ctx.indent(level+1), k) ctx.printValue(v, level+1, false) if i < len(keys)-1 { - fmt.Printf(",") + fmt.Fprintf(ctx.w, ",") } - fmt.Println() + fmt.Fprintln(ctx.w) } if inArray { level-- } - fmt.Printf("%s}", ctx.indent(level)) + fmt.Fprintf(ctx.w, "%s}", ctx.indent(level)) case "Function": // Use toString() to display the argument list if possible. if robj, err := obj.Call("toString"); err != nil { - functionColor.Print("function()") + fmt.Fprint(ctx.w, FunctionColor("function()")) } else { desc := strings.Trim(strings.Split(robj.String(), "{")[0], " \t\n") desc = strings.Replace(desc, " (", "(", 1) - functionColor.Print(desc) + fmt.Fprint(ctx.w, FunctionColor("%s", desc)) } case "RegExp": - stringColor.Print(toString(obj)) + fmt.Fprint(ctx.w, StringColor("%s", toString(obj))) default: if v, _ := obj.Get("toString"); v.IsFunction() && level <= maxPrettyPrintLevel { s, _ := obj.Call("toString") - fmt.Printf("<%s %s>", obj.Class(), s.String()) + fmt.Fprintf(ctx.w, "<%s %s>", obj.Class(), s.String()) } else { - fmt.Printf("<%s>", obj.Class()) + fmt.Fprintf(ctx.w, "<%s>", obj.Class()) } } } diff --git a/rpc/json.go b/rpc/json.go index 8a3bea2ee..151ed546e 100644 --- a/rpc/json.go +++ b/rpc/json.go @@ -30,7 +30,7 @@ import ( ) const ( - jsonRPCVersion = "2.0" + JSONRPCVersion = "2.0" serviceMethodSeparator = "_" subscribeMethod = "eth_subscribe" unsubscribeMethod = "eth_unsubscribe" @@ -302,31 +302,31 @@ func parsePositionalArguments(args json.RawMessage, callbackArgs []reflect.Type) // CreateResponse will create a JSON-RPC success response with the given id and reply as result. func (c *jsonCodec) CreateResponse(id interface{}, reply interface{}) interface{} { if isHexNum(reflect.TypeOf(reply)) { - return &JSONSuccessResponse{Version: jsonRPCVersion, Id: id, Result: fmt.Sprintf(`%#x`, reply)} + return &JSONSuccessResponse{Version: JSONRPCVersion, Id: id, Result: fmt.Sprintf(`%#x`, reply)} } - return &JSONSuccessResponse{Version: jsonRPCVersion, Id: id, Result: reply} + return &JSONSuccessResponse{Version: JSONRPCVersion, Id: id, Result: reply} } // CreateErrorResponse will create a JSON-RPC error response with the given id and error. func (c *jsonCodec) CreateErrorResponse(id interface{}, err RPCError) interface{} { - return &JSONErrResponse{Version: jsonRPCVersion, Id: id, Error: JSONError{Code: err.Code(), Message: err.Error()}} + return &JSONErrResponse{Version: JSONRPCVersion, Id: id, Error: JSONError{Code: err.Code(), Message: err.Error()}} } // CreateErrorResponseWithInfo will create a JSON-RPC error response with the given id and error. // info is optional and contains additional information about the error. When an empty string is passed it is ignored. func (c *jsonCodec) CreateErrorResponseWithInfo(id interface{}, err RPCError, info interface{}) interface{} { - return &JSONErrResponse{Version: jsonRPCVersion, Id: id, + return &JSONErrResponse{Version: JSONRPCVersion, Id: id, Error: JSONError{Code: err.Code(), Message: err.Error(), Data: info}} } // CreateNotification will create a JSON-RPC notification with the given subscription id and event as params. func (c *jsonCodec) CreateNotification(subid string, event interface{}) interface{} { if isHexNum(reflect.TypeOf(event)) { - return &jsonNotification{Version: jsonRPCVersion, Method: notificationMethod, + return &jsonNotification{Version: JSONRPCVersion, Method: notificationMethod, Params: jsonSubscription{Subscription: subid, Result: fmt.Sprintf(`%#x`, event)}} } - return &jsonNotification{Version: jsonRPCVersion, Method: notificationMethod, + return &jsonNotification{Version: JSONRPCVersion, Method: notificationMethod, Params: jsonSubscription{Subscription: subid, Result: event}} }