Merge pull request #1 from ethereum/master

Merge from ethereum/go-ethereum

.dockerignore

@@ -1,4 +1,7 @@
 **/.git
+.git
+!.git/HEAD
+!.git/refs/heads
 **/*_test.go
 
 build/_workspace

.github/CODEOWNERS

@@ -0,0 +1,9 @@
+# Lines starting with '#' are comments.
+# Each line is a file pattern followed by one or more owners.
+
+accounts/usbwallet @karalabe
+consensus          @karalabe
+core/              @karalabe @holiman
+eth/               @karalabe
+mobile/            @karalabe
+p2p/               @fjl @zsfelfoldi

.github/ISSUE_TEMPLATE.md

@@ -1,3 +1,9 @@
+Hi there,
+
+please note that this is an issue tracker reserved for bug reports and feature requests.
+
+For general questions please use the gitter channel or the Ethereum stack exchange at https://ethereum.stackexchange.com.
+
 #### System information
 
 Geth version: `geth version`

.gitignore

@@ -33,3 +33,8 @@ profile.cov
 
 # IdeaIDE
 .idea
+
+# dashboard
+/dashboard/assets/node_modules
+/dashboard/assets/stats.json
+/dashboard/assets/public/bundle.js

.travis.yml

@@ -38,7 +38,7 @@ matrix:
         - sudo chmod 666 /dev/fuse
         - sudo chown root:$USER /etc/fuse.conf
         - go run build/ci.go install
-        - go run build/ci.go test -coverage -misspell
+        - go run build/ci.go test -coverage
 
     - os: osx
       go: 1.9.x
@@ -48,7 +48,21 @@ matrix:
         - brew install caskroom/cask/brew-cask
         - brew cask install osxfuse
         - go run build/ci.go install
-        - go run build/ci.go test -coverage -misspell
+        - go run build/ci.go test -coverage
+
+    # This builder only tests code linters on latest version of Go
+    - os: linux
+      dist: trusty
+      sudo: required
+      go: 1.9.x
+      env:
+        - lint
+      script:
+        - sudo -E apt-get -yq --no-install-suggests --no-install-recommends --force-yes install fuse
+        - sudo modprobe fuse
+        - sudo chmod 666 /dev/fuse
+        - sudo chown root:$USER /etc/fuse.conf
+        - go run build/ci.go lint
 
     # This builder does the Ubuntu PPA and Linux Azure uploads
     - os: linux
@@ -133,16 +147,16 @@ matrix:
         - azure-android
         - maven-android
       before_install:
-        - curl https://storage.googleapis.com/golang/go1.9.linux-amd64.tar.gz | tar -xz
+        - curl https://storage.googleapis.com/golang/go1.9.2.linux-amd64.tar.gz | tar -xz
         - export PATH=`pwd`/go/bin:$PATH
         - export GOROOT=`pwd`/go
         - export GOPATH=$HOME/go
       script:
         # Build the Android archive and upload it to Maven Central and Azure
-        - curl https://dl.google.com/android/repository/android-ndk-r14b-linux-x86_64.zip -o android-ndk-r14b.zip
+        - curl https://dl.google.com/android/repository/android-ndk-r15c-linux-x86_64.zip -o android-ndk-r15c.zip
-        - unzip -q android-ndk-r14b.zip && rm android-ndk-r14b.zip
+        - unzip -q android-ndk-r15c.zip && rm android-ndk-r15c.zip
-        - mv android-ndk-r14b $HOME
+        - mv android-ndk-r15c $HOME
-        - export ANDROID_NDK=$HOME/android-ndk-r14b
+        - export ANDROID_NDK=$HOME/android-ndk-r15c
 
         - mkdir -p $GOPATH/src/github.com/ethereum
         - ln -s `pwd` $GOPATH/src/github.com/ethereum

Dockerfile

@@ -12,5 +12,5 @@ FROM alpine:latest
 RUN apk add --no-cache ca-certificates
 COPY --from=builder /go-ethereum/build/bin/geth /usr/local/bin/
 
-EXPOSE 8545 8546 30303 30303/udp
+EXPOSE 8545 8546 30303 30303/udp 30304/udp
 ENTRYPOINT ["geth"]

Dockerfile.alltools

@@ -0,0 +1,15 @@
+# Build Geth in a stock Go builder container
+FROM golang:1.9-alpine as builder
+
+RUN apk add --no-cache make gcc musl-dev linux-headers
+
+ADD . /go-ethereum
+RUN cd /go-ethereum && make all
+
+# Pull all binaries into a second stage deploy alpine container
+FROM alpine:latest
+
+RUN apk add --no-cache ca-certificates
+COPY --from=builder /go-ethereum/build/bin/* /usr/local/bin/
+
+EXPOSE 8545 8546 30303 30303/udp 30304/udp

README.md

@@ -266,7 +266,7 @@ instance for mining, run it with all your usual flags, extended by:
 $ geth <usual-flags> --mine --minerthreads=1 --etherbase=0x0000000000000000000000000000000000000000
 ```
 
-Which will start mining bocks and transactions on a single CPU thread, crediting all proceedings to
+Which will start mining blocks and transactions on a single CPU thread, crediting all proceedings to
 the account specified by `--etherbase`. You can further tune the mining by changing the default gas
 limit blocks converge to (`--targetgaslimit`) and the price transactions are accepted at (`--gasprice`).
 

VERSION

@@ -1 +1 @@
-1.7.3
+1.8.0

accounts/abi/bind/backends/simulated.go

@@ -41,6 +41,7 @@ import (
 var _ bind.ContractBackend = (*SimulatedBackend)(nil)
 
 var errBlockNumberUnsupported = errors.New("SimulatedBackend cannot access blocks other than the latest block")
+var errGasEstimationFailed = errors.New("gas required exceeds allowance or always failing transaction")
 
 // SimulatedBackend implements bind.ContractBackend, simulating a blockchain in
 // the background. Its main purpose is to allow easily testing contract bindings.
@@ -203,33 +204,47 @@ func (b *SimulatedBackend) EstimateGas(ctx context.Context, call ethereum.CallMs
 	b.mu.Lock()
 	defer b.mu.Unlock()
 
-	// Binary search the gas requirement, as it may be higher than the amount used
+	// Determine the lowest and highest possible gas limits to binary search in between
 	var (
 		lo  uint64 = params.TxGas - 1
 		hi  uint64
+		cap uint64
 	)
 	if call.Gas != nil && call.Gas.Uint64() >= params.TxGas {
 		hi = call.Gas.Uint64()
 	} else {
 		hi = b.pendingBlock.GasLimit().Uint64()
 	}
-	for lo+1 < hi {
+	cap = hi
-		// Take a guess at the gas, and check transaction validity
+
-		mid := (hi + lo) / 2
+	// Create a helper to check if a gas allowance results in an executable transaction
-		call.Gas = new(big.Int).SetUint64(mid)
+	executable := func(gas uint64) bool {
+		call.Gas = new(big.Int).SetUint64(gas)
 
 		snapshot := b.pendingState.Snapshot()
 		_, _, failed, err := b.callContract(ctx, call, b.pendingBlock, b.pendingState)
 		b.pendingState.RevertToSnapshot(snapshot)
 
-		// If the transaction became invalid or execution failed, raise the gas limit
 		if err != nil || failed {
-			lo = mid
+			return false
-			continue
 		}
-		// Otherwise assume the transaction succeeded, lower the gas limit
+		return true
+	}
+	// Execute the binary search and hone in on an executable gas limit
+	for lo+1 < hi {
+		mid := (hi + lo) / 2
+		if !executable(mid) {
+			lo = mid
+		} else {
 			hi = mid
 		}
+	}
+	// Reject the transaction as invalid if it still fails at the highest allowance
+	if hi == cap {
+		if !executable(hi) {
+			return nil, errGasEstimationFailed
+		}
+	}
 	return new(big.Int).SetUint64(hi), nil
 }
 

accounts/abi/unpack.go

@@ -38,7 +38,7 @@ type unpacker interface {
 func readInteger(kind reflect.Kind, b []byte) interface{} {
 	switch kind {
 	case reflect.Uint8:
-		return uint8(b[len(b)-1])
+		return b[len(b)-1]
 	case reflect.Uint16:
 		return binary.BigEndian.Uint16(b[len(b)-2:])
 	case reflect.Uint32:

accounts/keystore/account_cache.go

@@ -20,7 +20,6 @@ import (
 	"bufio"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"sort"
@@ -75,13 +74,6 @@ type accountCache struct {
 	fileC    fileCache
 }
 
-// fileCache is a cache of files seen during scan of keystore
-type fileCache struct {
-	all   *set.SetNonTS // list of all files
-	mtime time.Time     // latest mtime seen
-	mu    sync.RWMutex
-}
-
 func newAccountCache(keydir string) (*accountCache, chan struct{}) {
 	ac := &accountCache{
 		keydir: keydir,
@@ -236,66 +228,22 @@ func (ac *accountCache) close() {
 	ac.mu.Unlock()
 }
 
-// scanFiles performs a new scan on the given directory, compares against the already
-// cached filenames, and returns file sets: new, missing , modified
-func (fc *fileCache) scanFiles(keyDir string) (set.Interface, set.Interface, set.Interface, error) {
-	t0 := time.Now()
-	files, err := ioutil.ReadDir(keyDir)
-	t1 := time.Now()
-	if err != nil {
-		return nil, nil, nil, err
-	}
-	fc.mu.RLock()
-	prevMtime := fc.mtime
-	fc.mu.RUnlock()
-
-	filesNow := set.NewNonTS()
-	moddedFiles := set.NewNonTS()
-	var newMtime time.Time
-	for _, fi := range files {
-		modTime := fi.ModTime()
-		path := filepath.Join(keyDir, fi.Name())
-		if skipKeyFile(fi) {
-			log.Trace("Ignoring file on account scan", "path", path)
-			continue
-		}
-		filesNow.Add(path)
-		if modTime.After(prevMtime) {
-			moddedFiles.Add(path)
-		}
-		if modTime.After(newMtime) {
-			newMtime = modTime
-		}
-	}
-	t2 := time.Now()
-
-	fc.mu.Lock()
-	// Missing = previous - current
-	missing := set.Difference(fc.all, filesNow)
-	// New = current - previous
-	newFiles := set.Difference(filesNow, fc.all)
-	// Modified = modified - new
-	modified := set.Difference(moddedFiles, newFiles)
-	fc.all = filesNow
-	fc.mtime = newMtime
-	fc.mu.Unlock()
-	t3 := time.Now()
-	log.Debug("FS scan times", "list", t1.Sub(t0), "set", t2.Sub(t1), "diff", t3.Sub(t2))
-	return newFiles, missing, modified, nil
-}
-
 // scanAccounts checks if any changes have occurred on the filesystem, and
 // updates the account cache accordingly
 func (ac *accountCache) scanAccounts() error {
-	newFiles, missingFiles, modified, err := ac.fileC.scanFiles(ac.keydir)
+	// Scan the entire folder metadata for file changes
-	t1 := time.Now()
+	creates, deletes, updates, err := ac.fileC.scan(ac.keydir)
 	if err != nil {
 		log.Debug("Failed to reload keystore contents", "err", err)
 		return err
 	}
+	if creates.Size() == 0 && deletes.Size() == 0 && updates.Size() == 0 {
+		return nil
+	}
+	// Create a helper method to scan the contents of the key files
 	var (
 		buf = new(bufio.Reader)
-		keyJSON struct {
+		key struct {
 			Address string `json:"address"`
 		}
 	)
@@ -308,9 +256,9 @@ func (ac *accountCache) scanAccounts() error {
 		defer fd.Close()
 		buf.Reset(fd)
 		// Parse the address.
-		keyJSON.Address = ""
+		key.Address = ""
-		err = json.NewDecoder(buf).Decode(&keyJSON)
+		err = json.NewDecoder(buf).Decode(&key)
-		addr := common.HexToAddress(keyJSON.Address)
+		addr := common.HexToAddress(key.Address)
 		switch {
 		case err != nil:
 			log.Debug("Failed to decode keystore key", "path", path, "err", err)
@@ -321,47 +269,30 @@ func (ac *accountCache) scanAccounts() error {
 		}
 		return nil
 	}
+	// Process all the file diffs
+	start := time.Now()
 
-	for _, p := range newFiles.List() {
+	for _, p := range creates.List() {
-		path, _ := p.(string)
+		if a := readAccount(p.(string)); a != nil {
-		a := readAccount(path)
-		if a != nil {
 			ac.add(*a)
 		}
 	}
-	for _, p := range missingFiles.List() {
+	for _, p := range deletes.List() {
-		path, _ := p.(string)
+		ac.deleteByFile(p.(string))
-		ac.deleteByFile(path)
 	}
-
+	for _, p := range updates.List() {
-	for _, p := range modified.List() {
+		path := p.(string)
-		path, _ := p.(string)
-		a := readAccount(path)
 		ac.deleteByFile(path)
-		if a != nil {
+		if a := readAccount(path); a != nil {
 			ac.add(*a)
 		}
 	}
-
+	end := time.Now()
-	t2 := time.Now()
 
 	select {
 	case ac.notify <- struct{}{}:
 	default:
 	}
-	log.Trace("Handled keystore changes", "time", t2.Sub(t1))
+	log.Trace("Handled keystore changes", "time", end.Sub(start))
-
 	return nil
 }
-
-func skipKeyFile(fi os.FileInfo) bool {
-	// Skip editor backups and UNIX-style hidden files.
-	if strings.HasSuffix(fi.Name(), "~") || strings.HasPrefix(fi.Name(), ".") {
-		return true
-	}
-	// Skip misc special files, directories (yes, symlinks too).
-	if fi.IsDir() || fi.Mode()&os.ModeType != 0 {
-		return true
-	}
-	return false
-}

accounts/keystore/account_cache_test.go

@@ -59,7 +59,7 @@ func TestWatchNewFile(t *testing.T) {
 
 	// Ensure the watcher is started before adding any files.
 	ks.Accounts()
-	time.Sleep(200 * time.Millisecond)
+	time.Sleep(1000 * time.Millisecond)
 
 	// Move in the files.
 	wantAccounts := make([]accounts.Account, len(cachetestAccounts))
@@ -349,6 +349,9 @@ func TestUpdatedKeyfileContents(t *testing.T) {
 		return
 	}
 
+	// needed so that modTime of `file` is different to its current value after forceCopyFile
+	time.Sleep(1000 * time.Millisecond)
+
 	// Now replace file contents
 	if err := forceCopyFile(file, cachetestAccounts[1].URL.Path); err != nil {
 		t.Fatal(err)
@@ -362,6 +365,9 @@ func TestUpdatedKeyfileContents(t *testing.T) {
 		return
 	}
 
+	// needed so that modTime of `file` is different to its current value after forceCopyFile
+	time.Sleep(1000 * time.Millisecond)
+
 	// Now replace file contents again
 	if err := forceCopyFile(file, cachetestAccounts[2].URL.Path); err != nil {
 		t.Fatal(err)
@@ -374,6 +380,10 @@ func TestUpdatedKeyfileContents(t *testing.T) {
 		t.Error(err)
 		return
 	}
+
+	// needed so that modTime of `file` is different to its current value after ioutil.WriteFile
+	time.Sleep(1000 * time.Millisecond)
+
 	// Now replace file contents with crap
 	if err := ioutil.WriteFile(file, []byte("foo"), 0644); err != nil {
 		t.Fatal(err)

accounts/keystore/file_cache.go

@@ -0,0 +1,102 @@
+// Copyright 2017 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 <http://www.gnu.org/licenses/>.
+
+package keystore
+
+import (
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/ethereum/go-ethereum/log"
+	set "gopkg.in/fatih/set.v0"
+)
+
+// fileCache is a cache of files seen during scan of keystore.
+type fileCache struct {
+	all     *set.SetNonTS // Set of all files from the keystore folder
+	lastMod time.Time     // Last time instance when a file was modified
+	mu      sync.RWMutex
+}
+
+// scan performs a new scan on the given directory, compares against the already
+// cached filenames, and returns file sets: creates, deletes, updates.
+func (fc *fileCache) scan(keyDir string) (set.Interface, set.Interface, set.Interface, error) {
+	t0 := time.Now()
+
+	// List all the failes from the keystore folder
+	files, err := ioutil.ReadDir(keyDir)
+	if err != nil {
+		return nil, nil, nil, err
+	}
+	t1 := time.Now()
+
+	fc.mu.Lock()
+	defer fc.mu.Unlock()
+
+	// Iterate all the files and gather their metadata
+	all := set.NewNonTS()
+	mods := set.NewNonTS()
+
+	var newLastMod time.Time
+	for _, fi := range files {
+		// Skip any non-key files from the folder
+		path := filepath.Join(keyDir, fi.Name())
+		if skipKeyFile(fi) {
+			log.Trace("Ignoring file on account scan", "path", path)
+			continue
+		}
+		// Gather the set of all and fresly modified files
+		all.Add(path)
+
+		modified := fi.ModTime()
+		if modified.After(fc.lastMod) {
+			mods.Add(path)
+		}
+		if modified.After(newLastMod) {
+			newLastMod = modified
+		}
+	}
+	t2 := time.Now()
+
+	// Update the tracked files and return the three sets
+	deletes := set.Difference(fc.all, all)   // Deletes = previous - current
+	creates := set.Difference(all, fc.all)   // Creates = current - previous
+	updates := set.Difference(mods, creates) // Updates = modified - creates
+
+	fc.all, fc.lastMod = all, newLastMod
+	t3 := time.Now()
+
+	// Report on the scanning stats and return
+	log.Debug("FS scan times", "list", t1.Sub(t0), "set", t2.Sub(t1), "diff", t3.Sub(t2))
+	return creates, deletes, updates, nil
+}
+
+// skipKeyFile ignores editor backups, hidden files and folders/symlinks.
+func skipKeyFile(fi os.FileInfo) bool {
+	// Skip editor backups and UNIX-style hidden files.
+	if strings.HasSuffix(fi.Name(), "~") || strings.HasPrefix(fi.Name(), ".") {
+		return true
+	}
+	// Skip misc special files, directories (yes, symlinks too).
+	if fi.IsDir() || fi.Mode()&os.ModeType != 0 {
+		return true
+	}
+	return false
+}

accounts/keystore/keystore_passphrase.go

@@ -28,6 +28,7 @@ package keystore
 import (
 	"bytes"
 	"crypto/aes"
+	crand "crypto/rand"
 	"crypto/sha256"
 	"encoding/hex"
 	"encoding/json"
@@ -90,6 +91,12 @@ func (ks keyStorePassphrase) GetKey(addr common.Address, filename, auth string)
 	return key, nil
 }
 
+// StoreKey generates a key, encrypts with 'auth' and stores in the given directory
+func StoreKey(dir, auth string, scryptN, scryptP int) (common.Address, error) {
+	_, a, err := storeNewKey(&keyStorePassphrase{dir, scryptN, scryptP}, crand.Reader, auth)
+	return a.Address, err
+}
+
 func (ks keyStorePassphrase) StoreKey(filename string, key *Key, auth string) error {
 	keyjson, err := EncryptKey(key, auth, ks.scryptN, ks.scryptP)
 	if err != nil {

accounts/keystore/watch.go

@@ -81,10 +81,14 @@ func (w *watcher) loop() {
 	// When an event occurs, the reload call is delayed a bit so that
 	// multiple events arriving quickly only cause a single reload.
 	var (
-		debounce         = time.NewTimer(0)
 		debounceDuration = 500 * time.Millisecond
 		rescanTriggered  = false
+		debounce         = time.NewTimer(0)
 	)
+	// Ignore initial trigger
+	if !debounce.Stop() {
+		<-debounce.C
+	}
 	defer debounce.Stop()
 	for {
 		select {

accounts/manager.go

@@ -41,6 +41,11 @@ type Manager struct {
 // NewManager creates a generic account manager to sign transaction via various
 // supported backends.
 func NewManager(backends ...Backend) *Manager {
+	// Retrieve the initial list of wallets from the backends and sort by URL
+	var wallets []Wallet
+	for _, backend := range backends {
+		wallets = merge(wallets, backend.Wallets()...)
+	}
 	// Subscribe to wallet notifications from all backends
 	updates := make(chan WalletEvent, 4*len(backends))
 
@@ -48,11 +53,6 @@ func NewManager(backends ...Backend) *Manager {
 	for i, backend := range backends {
 		subs[i] = backend.Subscribe(updates)
 	}
-	// Retrieve the initial list of wallets from the backends and sort by URL
-	var wallets []Wallet
-	for _, backend := range backends {
-		wallets = merge(wallets, backend.Wallets()...)
-	}
 	// Assemble the account manager and return
 	am := &Manager{
 		backends: make(map[reflect.Type][]Backend),

build/ci.go

@@ -19,12 +19,13 @@
 /*
 The ci command is called from Continuous Integration scripts.
 
-Usage: go run ci.go <command> <command flags/arguments>
+Usage: go run build/ci.go <command> <command flags/arguments>
 
 Available commands are:
 
    install    [ -arch architecture ] [ packages... ]                                           -- builds packages and executables
-   test       [ -coverage ] [ -misspell ] [ packages... ]                                      -- runs the tests
+   test       [ -coverage ] [ packages... ]                                                    -- runs the tests
+   lint                                                                                        -- runs certain pre-selected linters
    archive    [ -arch architecture ] [ -type zip|tar ] [ -signer key-envvar ] [ -upload dest ] -- archives build artefacts
    importkeys                                                                                  -- imports signing keys from env
    debsrc     [ -signer key-id ] [ -upload dest ]                                              -- creates a debian source package
@@ -146,6 +147,8 @@ func main() {
 		doInstall(os.Args[2:])
 	case "test":
 		doTest(os.Args[2:])
+	case "lint":
+		doLint(os.Args[2:])
 	case "archive":
 		doArchive(os.Args[2:])
 	case "debsrc":
@@ -196,7 +199,7 @@ func doInstall(cmdline []string) {
 		build.MustRun(goinstall)
 		return
 	}
-	// If we are cross compiling to ARMv5 ARMv6 or ARMv7, clean any prvious builds
+	// If we are cross compiling to ARMv5 ARMv6 or ARMv7, clean any previous builds
 	if *arch == "arm" {
 		os.RemoveAll(filepath.Join(runtime.GOROOT(), "pkg", runtime.GOOS+"_arm"))
 		for _, path := range filepath.SplitList(build.GOPATH()) {
@@ -280,7 +283,6 @@ func goToolArch(arch string, subcmd string, args ...string) *exec.Cmd {
 
 func doTest(cmdline []string) {
 	var (
-		misspell = flag.Bool("misspell", false, "Whether to run the spell checker")
 		coverage = flag.Bool("coverage", false, "Whether to record code coverage")
 	)
 	flag.CommandLine.Parse(cmdline)
@@ -294,10 +296,7 @@ func doTest(cmdline []string) {
 
 	// Run analysis tools before the tests.
 	build.MustRun(goTool("vet", packages...))
-	if *misspell {
+
-		// TODO(karalabe): Reenable after false detection is fixed: https://github.com/client9/misspell/issues/105
-		// spellcheck(packages)
-	}
 	// Run the actual tests.
 	gotest := goTool("test", buildFlags(env)...)
 	// Test a single package at a time. CI builders are slow
@@ -306,35 +305,31 @@ func doTest(cmdline []string) {
 	if *coverage {
 		gotest.Args = append(gotest.Args, "-covermode=atomic", "-cover")
 	}
+
 	gotest.Args = append(gotest.Args, packages...)
 	build.MustRun(gotest)
 }
 
-// spellcheck runs the client9/misspell spellchecker package on all Go, Cgo and
+// runs gometalinter on requested packages
-// test files in the requested packages.
+func doLint(cmdline []string) {
-func spellcheck(packages []string) {
+	flag.CommandLine.Parse(cmdline)
-	// Ensure the spellchecker is available
-	build.MustRun(goTool("get", "github.com/client9/misspell/cmd/misspell"))
 
-	// Windows chokes on long argument lists, check packages individually
+	packages := []string{"./..."}
-	for _, pkg := range packages {
+	if len(flag.CommandLine.Args()) > 0 {
-		// The spell checker doesn't work on packages, gather all .go files for it
+		packages = flag.CommandLine.Args()
-		out, err := goTool("list", "-f", "{{.Dir}}{{range .GoFiles}}\n{{.}}{{end}}{{range .CgoFiles}}\n{{.}}{{end}}{{range .TestGoFiles}}\n{{.}}{{end}}", pkg).CombinedOutput()
-		if err != nil {
-			log.Fatalf("source file listing failed: %v\n%s", err, string(out))
 	}
-		// Retrieve the folder and assemble the source list
+	// Get metalinter and install all supported linters
-		lines := strings.Split(string(out), "\n")
+	build.MustRun(goTool("get", "gopkg.in/alecthomas/gometalinter.v1"))
-		root := lines[0]
+	build.MustRunCommand(filepath.Join(GOBIN, "gometalinter.v1"), "--install")
 
-		sources := make([]string, 0, len(lines)-1)
+	// Run fast linters batched together
-		for _, line := range lines[1:] {
+	configs := []string{"--vendor", "--disable-all", "--enable=vet", "--enable=gofmt", "--enable=misspell"}
-			if line = strings.TrimSpace(line); line != "" {
+	build.MustRunCommand(filepath.Join(GOBIN, "gometalinter.v1"), append(configs, packages...)...)
-				sources = append(sources, filepath.Join(root, line))
+
-			}
+	// Run slow linters one by one
-		}
+	for _, linter := range []string{"unconvert"} {
-		// Run the spell checker for this particular package
+		configs = []string{"--vendor", "--deadline=10m", "--disable-all", "--enable=" + linter}
-		build.MustRunCommand(filepath.Join(GOBIN, "misspell"), append([]string{"-error"}, sources...)...)
+		build.MustRunCommand(filepath.Join(GOBIN, "gometalinter.v1"), append(configs, packages...)...)
 	}
 }
 

cmd/faucet/faucet.go

@@ -83,6 +83,7 @@ var (
 	captchaToken  = flag.String("captcha.token", "", "Recaptcha site key to authenticate client side")
 	captchaSecret = flag.String("captcha.secret", "", "Recaptcha secret key to authenticate server side")
 
+	noauthFlag = flag.Bool("noauth", false, "Enables funding requests without authentication")
 	logFlag    = flag.Int("loglevel", 3, "Log level to use for Ethereum and the faucet")
 )
 
@@ -132,6 +133,7 @@ func main() {
 		"Amounts":   amounts,
 		"Periods":   periods,
 		"Recaptcha": *captchaToken,
+		"NoAuth":    *noauthFlag,
 	})
 	if err != nil {
 		log.Crit("Failed to render the faucet template", "err", err)
@@ -374,7 +376,7 @@ func (f *faucet) apiHandler(conn *websocket.Conn) {
 		if err = websocket.JSON.Receive(conn, &msg); err != nil {
 			return
 		}
-		if !strings.HasPrefix(msg.URL, "https://gist.github.com/") && !strings.HasPrefix(msg.URL, "https://twitter.com/") &&
+		if !*noauthFlag && !strings.HasPrefix(msg.URL, "https://gist.github.com/") && !strings.HasPrefix(msg.URL, "https://twitter.com/") &&
 			!strings.HasPrefix(msg.URL, "https://plus.google.com/") && !strings.HasPrefix(msg.URL, "https://www.facebook.com/") {
 			if err = sendError(conn, errors.New("URL doesn't link to supported services")); err != nil {
 				log.Warn("Failed to send URL error to client", "err", err)
@@ -435,13 +437,19 @@ func (f *faucet) apiHandler(conn *websocket.Conn) {
 		)
 		switch {
 		case strings.HasPrefix(msg.URL, "https://gist.github.com/"):
-			username, avatar, address, err = authGitHub(msg.URL)
+			if err = sendError(conn, errors.New("GitHub authentication discontinued at the official request of GitHub")); err != nil {
+				log.Warn("Failed to send GitHub deprecation to client", "err", err)
+				return
+			}
+			continue
 		case strings.HasPrefix(msg.URL, "https://twitter.com/"):
 			username, avatar, address, err = authTwitter(msg.URL)
 		case strings.HasPrefix(msg.URL, "https://plus.google.com/"):
 			username, avatar, address, err = authGooglePlus(msg.URL)
 		case strings.HasPrefix(msg.URL, "https://www.facebook.com/"):
 			username, avatar, address, err = authFacebook(msg.URL)
+		case *noauthFlag:
+			username, avatar, address, err = authNoAuth(msg.URL)
 		default:
 			err = errors.New("Something funky happened, please open an issue at https://github.com/ethereum/go-ethereum/issues")
 		}
@@ -776,3 +784,14 @@ func authFacebook(url string) (string, string, common.Address, error) {
 	}
 	return username + "@facebook", avatar, address, nil
 }
+
+// authNoAuth tries to interpret a faucet request as a plain Ethereum address,
+// without actually performing any remote authentication. This mode is prone to
+// Byzantine attack, so only ever use for truly private networks.
+func authNoAuth(url string) (string, string, common.Address, error) {
+	address := common.HexToAddress(regexp.MustCompile("0x[0-9a-fA-F]{40}").FindString(url))
+	if address == (common.Address{}) {
+		return "", "", common.Address{}, errors.New("No Ethereum address found to fund")
+	}
+	return address.Hex() + "@noauth", "", address, nil
+}

cmd/faucet/faucet.html

@@ -80,11 +80,8 @@
 				<div class="row" style="margin-top: 32px;">
 					<div class="col-lg-12">
 						<h3>How does this work?</h3>
-						<p>This Ether faucet is running on the {{.Network}} network. To prevent malicious actors from exhausting all available funds or accumulating enough Ether to mount long running spam attacks, requests are tied to certain common 3rd party accounts. Anyone having a GitHub, Twitter, Google+ or Facebook account may request funds within the permitted limits.</p>
+						<p>This Ether faucet is running on the {{.Network}} network. To prevent malicious actors from exhausting all available funds or accumulating enough Ether to mount long running spam attacks, requests are tied to common 3rd party social network accounts. Anyone having a Twitter, Google+ or Facebook account may request funds within the permitted limits.</p>
 						<dl class="dl-horizontal">
-						  <dt style="width: auto; margin-left: 40px;"><i class="fa fa-github-alt" aria-hidden="true" style="font-size: 36px;"></i></dt>
-							<dd style="margin-left: 88px; margin-bottom: 10px;"></i> To request funds via GitHub, create a <a href="https://gist.github.com/" target="_about:blank">gist</a> with your Ethereum address embedded into the content (the file name doesn't matter).<br/>Copy-paste the gists URL into the above input box and fire away!</dd>
-
 							<dt style="width: auto; margin-left: 40px;"><i class="fa fa-twitter" aria-hidden="true" style="font-size: 36px;"></i></dt>
 							<dd style="margin-left: 88px; margin-bottom: 10px;"></i> To request funds via Twitter, make a <a href="https://twitter.com/intent/tweet?text=Requesting%20faucet%20funds%20into%200x0000000000000000000000000000000000000000%20on%20the%20%23{{.Network}}%20%23Ethereum%20test%20network." target="_about:blank">tweet</a> with your Ethereum address pasted into the contents (surrounding text doesn't matter).<br/>Copy-paste the <a href="https://support.twitter.com/articles/80586" target="_about:blank">tweets URL</a> into the above input box and fire away!</dd>
 
@@ -93,6 +90,11 @@
 
 							<dt style="width: auto; margin-left: 40px;"><i class="fa fa-facebook" aria-hidden="true" style="font-size: 36px;"></i></dt>
 							<dd style="margin-left: 88px; margin-bottom: 10px;"></i> To request funds via Facebook, publish a new <strong>public</strong> post with your Ethereum address embedded into the content (surrounding text doesn't matter).<br/>Copy-paste the <a href="https://www.facebook.com/help/community/question/?id=282662498552845" target="_about:blank">posts URL</a> into the above input box and fire away!</dd>
+
+							{{if .NoAuth}}
+								<dt class="text-danger" style="width: auto; margin-left: 40px;"><i class="fa fa-unlock-alt" aria-hidden="true" style="font-size: 36px;"></i></dt>
+								<dd class="text-danger" style="margin-left: 88px; margin-bottom: 10px;"></i> To request funds <strong>without authentication</strong>, simply copy-paste your Ethereum address into the above input box (surrounding text doesn't matter) and fire away.<br/>This mode is susceptible to Byzantine attacks. Only use for debugging or private networks!</dd>
+							{{end}}
 						</dl>
 						<p>You can track the current pending requests below the input field to see how much you have to wait until your turn comes.</p>
 						{{if .Recaptcha}}<em>The faucet is running invisible reCaptcha protection against bots.</em>{{end}}
@@ -126,12 +128,7 @@
 			};
 			// Define a method to reconnect upon server loss
 			var reconnect = function() {
-				if (attempt % 2 == 0) {
+				server = new WebSocket(((window.location.protocol === "https:") ? "wss://" : "ws://") + window.location.host + "/api");
-					server = new WebSocket("wss://" + location.host + "/api");
-				} else {
-					server = new WebSocket("ws://" + location.host + "/api");
-				}
-				attempt++;
 
 				server.onmessage = function(event) {
 					var msg = JSON.parse(event.data);

cmd/geth/accountcmd.go

@@ -291,15 +291,28 @@ func ambiguousAddrRecovery(ks *keystore.KeyStore, err *keystore.AmbiguousAddrErr
 
 // accountCreate creates a new account into the keystore defined by the CLI flags.
 func accountCreate(ctx *cli.Context) error {
-	stack, _ := makeConfigNode(ctx)
+	cfg := gethConfig{Node: defaultNodeConfig()}
+	// Load config file.
+	if file := ctx.GlobalString(configFileFlag.Name); file != "" {
+		if err := loadConfig(file, &cfg); err != nil {
+			utils.Fatalf("%v", err)
+		}
+	}
+	utils.SetNodeConfig(ctx, &cfg.Node)
+	scryptN, scryptP, keydir, err := cfg.Node.AccountConfig()
+
+	if err != nil {
+		utils.Fatalf("Failed to read configuration: %v", err)
+	}
+
 	password := getPassPhrase("Your new account is locked with a password. Please give a password. Do not forget this password.", true, 0, utils.MakePasswordList(ctx))
 
-	ks := stack.AccountManager().Backends(keystore.KeyStoreType)[0].(*keystore.KeyStore)
+	address, err := keystore.StoreKey(keydir, password, scryptN, scryptP)
-	account, err := ks.NewAccount(password)
+
 	if err != nil {
 		utils.Fatalf("Failed to create account: %v", err)
 	}
-	fmt.Printf("Address: {%x}\n", account.Address)
+	fmt.Printf("Address: {%x}\n", address)
 	return nil
 }
 

cmd/geth/config.go

@@ -30,6 +30,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/cmd/utils"
 	"github.com/ethereum/go-ethereum/contracts/release"
+	"github.com/ethereum/go-ethereum/dashboard"
 	"github.com/ethereum/go-ethereum/eth"
 	"github.com/ethereum/go-ethereum/node"
 	"github.com/ethereum/go-ethereum/params"
@@ -80,6 +81,7 @@ type gethConfig struct {
 	Shh       whisper.Config
 	Node      node.Config
 	Ethstats  ethstatsConfig
+	Dashboard dashboard.Config
 }
 
 func loadConfig(file string, cfg *gethConfig) error {
@@ -113,6 +115,7 @@ func makeConfigNode(ctx *cli.Context) (*node.Node, gethConfig) {
 		Eth:       eth.DefaultConfig,
 		Shh:       whisper.DefaultConfig,
 		Node:      defaultNodeConfig(),
+		Dashboard: dashboard.DefaultConfig,
 	}
 
 	// Load config file.
@@ -134,6 +137,7 @@ func makeConfigNode(ctx *cli.Context) (*node.Node, gethConfig) {
 	}
 
 	utils.SetShhConfig(ctx, stack, &cfg.Shh)
+	utils.SetDashboardConfig(ctx, &cfg.Dashboard)
 
 	return stack, cfg
 }
@@ -153,6 +157,9 @@ func makeFullNode(ctx *cli.Context) *node.Node {
 
 	utils.RegisterEthService(stack, &cfg.Eth)
 
+	if ctx.GlobalBool(utils.DashboardEnabledFlag.Name) {
+		utils.RegisterDashboardService(stack, &cfg.Dashboard)
+	}
 	// Whisper must be explicitly enabled by specifying at least 1 whisper flag or in dev mode
 	shhEnabled := enableWhisper(ctx)
 	shhAutoEnabled := !ctx.GlobalIsSet(utils.WhisperEnabledFlag.Name) && ctx.GlobalIsSet(utils.DeveloperFlag.Name)

cmd/geth/consolecmd.go

@@ -17,6 +17,7 @@
 package main
 
 import (
+	"fmt"
 	"os"
 	"os/signal"
 	"strings"
@@ -112,7 +113,11 @@ func localConsole(ctx *cli.Context) error {
 // console to it.
 func remoteConsole(ctx *cli.Context) error {
 	// Attach to a remotely running geth instance and start the JavaScript console
-	client, err := dialRPC(ctx.Args().First())
+	endpoint := ctx.Args().First()
+	if endpoint == "" && ctx.GlobalIsSet(utils.DataDirFlag.Name) {
+		endpoint = fmt.Sprintf("%s/geth.ipc", ctx.GlobalString(utils.DataDirFlag.Name))
+	}
+	client, err := dialRPC(endpoint)
 	if err != nil {
 		utils.Fatalf("Unable to attach to remote geth: %v", err)
 	}

cmd/geth/main.go

@@ -61,6 +61,11 @@ var (
 		utils.DataDirFlag,
 		utils.KeyStoreDirFlag,
 		utils.NoUSBFlag,
+		utils.DashboardEnabledFlag,
+		utils.DashboardAddrFlag,
+		utils.DashboardPortFlag,
+		utils.DashboardRefreshFlag,
+		utils.DashboardAssetsFlag,
 		utils.EthashCacheDirFlag,
 		utils.EthashCachesInMemoryFlag,
 		utils.EthashCachesOnDiskFlag,

cmd/geth/usage.go

@@ -25,6 +25,7 @@ import (
 	"github.com/ethereum/go-ethereum/cmd/utils"
 	"github.com/ethereum/go-ethereum/internal/debug"
 	"gopkg.in/urfave/cli.v1"
+	"strings"
 )
 
 // AppHelpTemplate is the test template for the default, global app help topic.
@@ -97,6 +98,16 @@ var AppHelpFlagGroups = []flagGroup{
 			utils.EthashDatasetsOnDiskFlag,
 		},
 	},
+	//{
+	//	Name: "DASHBOARD",
+	//	Flags: []cli.Flag{
+	//		utils.DashboardEnabledFlag,
+	//		utils.DashboardAddrFlag,
+	//		utils.DashboardPortFlag,
+	//		utils.DashboardRefreshFlag,
+	//		utils.DashboardAssetsFlag,
+	//	},
+	//},
 	{
 		Name: "TRANSACTION POOL",
 		Flags: []cli.Flag{
@@ -268,6 +279,9 @@ func init() {
 			uncategorized := []cli.Flag{}
 			for _, flag := range data.(*cli.App).Flags {
 				if _, ok := categorized[flag.String()]; !ok {
+					if strings.HasPrefix(flag.GetName(), "dashboard") {
+						continue
+					}
 					uncategorized = append(uncategorized, flag)
 				}
 			}

cmd/puppeth/genesis.go

@@ -0,0 +1,379 @@
+// Copyright 2017 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 <http://www.gnu.org/licenses/>.
+
+package main
+
+import (
+	"encoding/binary"
+	"errors"
+	"math"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/common/hexutil"
+	"github.com/ethereum/go-ethereum/consensus/ethash"
+	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/params"
+)
+
+// cppEthereumGenesisSpec represents the genesis specification format used by the
+// C++ Ethereum implementation.
+type cppEthereumGenesisSpec struct {
+	SealEngine string `json:"sealEngine"`
+	Params     struct {
+		AccountStartNonce       hexutil.Uint64 `json:"accountStartNonce"`
+		HomesteadForkBlock      hexutil.Uint64 `json:"homesteadForkBlock"`
+		EIP150ForkBlock         hexutil.Uint64 `json:"EIP150ForkBlock"`
+		EIP158ForkBlock         hexutil.Uint64 `json:"EIP158ForkBlock"`
+		ByzantiumForkBlock      hexutil.Uint64 `json:"byzantiumForkBlock"`
+		ConstantinopleForkBlock hexutil.Uint64 `json:"constantinopleForkBlock"`
+		NetworkID               hexutil.Uint64 `json:"networkID"`
+		ChainID                 hexutil.Uint64 `json:"chainID"`
+		MaximumExtraDataSize    hexutil.Uint64 `json:"maximumExtraDataSize"`
+		MinGasLimit             hexutil.Uint64 `json:"minGasLimit"`
+		MaxGasLimit             hexutil.Uint64 `json:"maxGasLimit"`
+		GasLimitBoundDivisor    *hexutil.Big   `json:"gasLimitBoundDivisor"`
+		MinimumDifficulty       *hexutil.Big   `json:"minimumDifficulty"`
+		DifficultyBoundDivisor  *hexutil.Big   `json:"difficultyBoundDivisor"`
+		DurationLimit           *hexutil.Big   `json:"durationLimit"`
+		BlockReward             *hexutil.Big   `json:"blockReward"`
+	} `json:"params"`
+
+	Genesis struct {
+		Nonce      hexutil.Bytes  `json:"nonce"`
+		Difficulty *hexutil.Big   `json:"difficulty"`
+		MixHash    common.Hash    `json:"mixHash"`
+		Author     common.Address `json:"author"`
+		Timestamp  hexutil.Uint64 `json:"timestamp"`
+		ParentHash common.Hash    `json:"parentHash"`
+		ExtraData  hexutil.Bytes  `json:"extraData"`
+		GasLimit   hexutil.Uint64 `json:"gasLimit"`
+	} `json:"genesis"`
+
+	Accounts map[common.Address]*cppEthereumGenesisSpecAccount `json:"accounts"`
+}
+
+// cppEthereumGenesisSpecAccount is the prefunded genesis account and/or precompiled
+// contract definition.
+type cppEthereumGenesisSpecAccount struct {
+	Balance     *hexutil.Big                   `json:"balance"`
+	Nonce       uint64                         `json:"nonce,omitempty"`
+	Precompiled *cppEthereumGenesisSpecBuiltin `json:"precompiled,omitempty"`
+}
+
+// cppEthereumGenesisSpecBuiltin is the precompiled contract definition.
+type cppEthereumGenesisSpecBuiltin struct {
+	Name          string                               `json:"name,omitempty"`
+	StartingBlock hexutil.Uint64                       `json:"startingBlock,omitempty"`
+	Linear        *cppEthereumGenesisSpecLinearPricing `json:"linear,omitempty"`
+}
+
+type cppEthereumGenesisSpecLinearPricing struct {
+	Base uint64 `json:"base"`
+	Word uint64 `json:"word"`
+}
+
+// newCppEthereumGenesisSpec converts a go-ethereum genesis block into a Parity specific
+// chain specification format.
+func newCppEthereumGenesisSpec(network string, genesis *core.Genesis) (*cppEthereumGenesisSpec, error) {
+	// Only ethash is currently supported between go-ethereum and cpp-ethereum
+	if genesis.Config.Ethash == nil {
+		return nil, errors.New("unsupported consensus engine")
+	}
+	// Reconstruct the chain spec in Parity's format
+	spec := &cppEthereumGenesisSpec{
+		SealEngine: "Ethash",
+	}
+	spec.Params.AccountStartNonce = 0
+	spec.Params.HomesteadForkBlock = (hexutil.Uint64)(genesis.Config.HomesteadBlock.Uint64())
+	spec.Params.EIP150ForkBlock = (hexutil.Uint64)(genesis.Config.EIP150Block.Uint64())
+	spec.Params.EIP158ForkBlock = (hexutil.Uint64)(genesis.Config.EIP158Block.Uint64())
+	spec.Params.ByzantiumForkBlock = (hexutil.Uint64)(genesis.Config.ByzantiumBlock.Uint64())
+	spec.Params.ConstantinopleForkBlock = (hexutil.Uint64)(math.MaxUint64)
+
+	spec.Params.NetworkID = (hexutil.Uint64)(genesis.Config.ChainId.Uint64())
+	spec.Params.ChainID = (hexutil.Uint64)(genesis.Config.ChainId.Uint64())
+
+	spec.Params.MaximumExtraDataSize = (hexutil.Uint64)(params.MaximumExtraDataSize)
+	spec.Params.MinGasLimit = (hexutil.Uint64)(params.MinGasLimit.Uint64())
+	spec.Params.MaxGasLimit = (hexutil.Uint64)(math.MaxUint64)
+	spec.Params.MinimumDifficulty = (*hexutil.Big)(params.MinimumDifficulty)
+	spec.Params.DifficultyBoundDivisor = (*hexutil.Big)(params.DifficultyBoundDivisor)
+	spec.Params.GasLimitBoundDivisor = (*hexutil.Big)(params.GasLimitBoundDivisor)
+	spec.Params.DurationLimit = (*hexutil.Big)(params.DurationLimit)
+	spec.Params.BlockReward = (*hexutil.Big)(ethash.FrontierBlockReward)
+
+	spec.Genesis.Nonce = (hexutil.Bytes)(make([]byte, 8))
+	binary.LittleEndian.PutUint64(spec.Genesis.Nonce[:], genesis.Nonce)
+
+	spec.Genesis.MixHash = genesis.Mixhash
+	spec.Genesis.Difficulty = (*hexutil.Big)(genesis.Difficulty)
+	spec.Genesis.Author = genesis.Coinbase
+	spec.Genesis.Timestamp = (hexutil.Uint64)(genesis.Timestamp)
+	spec.Genesis.ParentHash = genesis.ParentHash
+	spec.Genesis.ExtraData = (hexutil.Bytes)(genesis.ExtraData)
+	spec.Genesis.GasLimit = (hexutil.Uint64)(genesis.GasLimit)
+
+	spec.Accounts = make(map[common.Address]*cppEthereumGenesisSpecAccount)
+	for address, account := range genesis.Alloc {
+		spec.Accounts[address] = &cppEthereumGenesisSpecAccount{
+			Balance: (*hexutil.Big)(account.Balance),
+			Nonce:   account.Nonce,
+		}
+	}
+	spec.Accounts[common.BytesToAddress([]byte{1})].Precompiled = &cppEthereumGenesisSpecBuiltin{
+		Name: "ecrecover", Linear: &cppEthereumGenesisSpecLinearPricing{Base: 3000},
+	}
+	spec.Accounts[common.BytesToAddress([]byte{2})].Precompiled = &cppEthereumGenesisSpecBuiltin{
+		Name: "sha256", Linear: &cppEthereumGenesisSpecLinearPricing{Base: 60, Word: 12},
+	}
+	spec.Accounts[common.BytesToAddress([]byte{3})].Precompiled = &cppEthereumGenesisSpecBuiltin{
+		Name: "ripemd160", Linear: &cppEthereumGenesisSpecLinearPricing{Base: 600, Word: 120},
+	}
+	spec.Accounts[common.BytesToAddress([]byte{4})].Precompiled = &cppEthereumGenesisSpecBuiltin{
+		Name: "identity", Linear: &cppEthereumGenesisSpecLinearPricing{Base: 15, Word: 3},
+	}
+	if genesis.Config.ByzantiumBlock != nil {
+		spec.Accounts[common.BytesToAddress([]byte{5})].Precompiled = &cppEthereumGenesisSpecBuiltin{
+			Name: "modexp", StartingBlock: (hexutil.Uint64)(genesis.Config.ByzantiumBlock.Uint64()),
+		}
+		spec.Accounts[common.BytesToAddress([]byte{6})].Precompiled = &cppEthereumGenesisSpecBuiltin{
+			Name: "alt_bn128_G1_add", StartingBlock: (hexutil.Uint64)(genesis.Config.ByzantiumBlock.Uint64()), Linear: &cppEthereumGenesisSpecLinearPricing{Base: 500},
+		}
+		spec.Accounts[common.BytesToAddress([]byte{7})].Precompiled = &cppEthereumGenesisSpecBuiltin{
+			Name: "alt_bn128_G1_mul", StartingBlock: (hexutil.Uint64)(genesis.Config.ByzantiumBlock.Uint64()), Linear: &cppEthereumGenesisSpecLinearPricing{Base: 40000},
+		}
+		spec.Accounts[common.BytesToAddress([]byte{8})].Precompiled = &cppEthereumGenesisSpecBuiltin{
+			Name: "alt_bn128_pairing_product", StartingBlock: (hexutil.Uint64)(genesis.Config.ByzantiumBlock.Uint64()),
+		}
+	}
+	return spec, nil
+}
+
+// parityChainSpec is the chain specification format used by Parity.
+type parityChainSpec struct {
+	Name   string `json:"name"`
+	Engine struct {
+		Ethash struct {
+			Params struct {
+				MinimumDifficulty      *hexutil.Big `json:"minimumDifficulty"`
+				DifficultyBoundDivisor *hexutil.Big `json:"difficultyBoundDivisor"`
+				GasLimitBoundDivisor   *hexutil.Big `json:"gasLimitBoundDivisor"`
+				DurationLimit          *hexutil.Big `json:"durationLimit"`
+				BlockReward            *hexutil.Big `json:"blockReward"`
+				HomesteadTransition    uint64       `json:"homesteadTransition"`
+				EIP150Transition       uint64       `json:"eip150Transition"`
+				EIP160Transition       uint64       `json:"eip160Transition"`
+				EIP161abcTransition    uint64       `json:"eip161abcTransition"`
+				EIP161dTransition      uint64       `json:"eip161dTransition"`
+				EIP649Reward           *hexutil.Big `json:"eip649Reward"`
+				EIP100bTransition      uint64       `json:"eip100bTransition"`
+				EIP649Transition       uint64       `json:"eip649Transition"`
+			} `json:"params"`
+		} `json:"Ethash"`
+	} `json:"engine"`
+
+	Params struct {
+		MaximumExtraDataSize hexutil.Uint64 `json:"maximumExtraDataSize"`
+		MinGasLimit          *hexutil.Big   `json:"minGasLimit"`
+		NetworkID            hexutil.Uint64 `json:"networkID"`
+		MaxCodeSize          uint64         `json:"maxCodeSize"`
+		EIP155Transition     uint64         `json:"eip155Transition"`
+		EIP98Transition      uint64         `json:"eip98Transition"`
+		EIP86Transition      uint64         `json:"eip86Transition"`
+		EIP140Transition     uint64         `json:"eip140Transition"`
+		EIP211Transition     uint64         `json:"eip211Transition"`
+		EIP214Transition     uint64         `json:"eip214Transition"`
+		EIP658Transition     uint64         `json:"eip658Transition"`
+	} `json:"params"`
+
+	Genesis struct {
+		Seal struct {
+			Ethereum struct {
+				Nonce   hexutil.Bytes `json:"nonce"`
+				MixHash hexutil.Bytes `json:"mixHash"`
+			} `json:"ethereum"`
+		} `json:"seal"`
+
+		Difficulty *hexutil.Big   `json:"difficulty"`
+		Author     common.Address `json:"author"`
+		Timestamp  hexutil.Uint64 `json:"timestamp"`
+		ParentHash common.Hash    `json:"parentHash"`
+		ExtraData  hexutil.Bytes  `json:"extraData"`
+		GasLimit   hexutil.Uint64 `json:"gasLimit"`
+	} `json:"genesis"`
+
+	Nodes    []string                                   `json:"nodes"`
+	Accounts map[common.Address]*parityChainSpecAccount `json:"accounts"`
+}
+
+// parityChainSpecAccount is the prefunded genesis account and/or precompiled
+// contract definition.
+type parityChainSpecAccount struct {
+	Balance *hexutil.Big            `json:"balance"`
+	Nonce   uint64                  `json:"nonce,omitempty"`
+	Builtin *parityChainSpecBuiltin `json:"builtin,omitempty"`
+}
+
+// parityChainSpecBuiltin is the precompiled contract definition.
+type parityChainSpecBuiltin struct {
+	Name       string                  `json:"name,omitempty"`
+	ActivateAt uint64                  `json:"activate_at,omitempty"`
+	Pricing    *parityChainSpecPricing `json:"pricing,omitempty"`
+}
+
+// parityChainSpecPricing represents the different pricing models that builtin
+// contracts might advertise using.
+type parityChainSpecPricing struct {
+	Linear       *parityChainSpecLinearPricing       `json:"linear,omitempty"`
+	ModExp       *parityChainSpecModExpPricing       `json:"modexp,omitempty"`
+	AltBnPairing *parityChainSpecAltBnPairingPricing `json:"alt_bn128_pairing,omitempty"`
+}
+
+type parityChainSpecLinearPricing struct {
+	Base uint64 `json:"base"`
+	Word uint64 `json:"word"`
+}
+
+type parityChainSpecModExpPricing struct {
+	Divisor uint64 `json:"divisor"`
+}
+
+type parityChainSpecAltBnPairingPricing struct {
+	Base uint64 `json:"base"`
+	Pair uint64 `json:"pair"`
+}
+
+// newParityChainSpec converts a go-ethereum genesis block into a Parity specific
+// chain specification format.
+func newParityChainSpec(network string, genesis *core.Genesis, bootnodes []string) (*parityChainSpec, error) {
+	// Only ethash is currently supported between go-ethereum and Parity
+	if genesis.Config.Ethash == nil {
+		return nil, errors.New("unsupported consensus engine")
+	}
+	// Reconstruct the chain spec in Parity's format
+	spec := &parityChainSpec{
+		Name:  network,
+		Nodes: bootnodes,
+	}
+	spec.Engine.Ethash.Params.MinimumDifficulty = (*hexutil.Big)(params.MinimumDifficulty)
+	spec.Engine.Ethash.Params.DifficultyBoundDivisor = (*hexutil.Big)(params.DifficultyBoundDivisor)
+	spec.Engine.Ethash.Params.GasLimitBoundDivisor = (*hexutil.Big)(params.GasLimitBoundDivisor)
+	spec.Engine.Ethash.Params.DurationLimit = (*hexutil.Big)(params.DurationLimit)
+	spec.Engine.Ethash.Params.BlockReward = (*hexutil.Big)(ethash.FrontierBlockReward)
+	spec.Engine.Ethash.Params.HomesteadTransition = genesis.Config.HomesteadBlock.Uint64()
+	spec.Engine.Ethash.Params.EIP150Transition = genesis.Config.EIP150Block.Uint64()
+	spec.Engine.Ethash.Params.EIP160Transition = genesis.Config.EIP155Block.Uint64()
+	spec.Engine.Ethash.Params.EIP161abcTransition = genesis.Config.EIP158Block.Uint64()
+	spec.Engine.Ethash.Params.EIP161dTransition = genesis.Config.EIP158Block.Uint64()
+	spec.Engine.Ethash.Params.EIP649Reward = (*hexutil.Big)(ethash.ByzantiumBlockReward)
+	spec.Engine.Ethash.Params.EIP100bTransition = genesis.Config.ByzantiumBlock.Uint64()
+	spec.Engine.Ethash.Params.EIP649Transition = genesis.Config.ByzantiumBlock.Uint64()
+
+	spec.Params.MaximumExtraDataSize = (hexutil.Uint64)(params.MaximumExtraDataSize)
+	spec.Params.MinGasLimit = (*hexutil.Big)(params.MinGasLimit)
+	spec.Params.NetworkID = (hexutil.Uint64)(genesis.Config.ChainId.Uint64())
+	spec.Params.MaxCodeSize = params.MaxCodeSize
+	spec.Params.EIP155Transition = genesis.Config.EIP155Block.Uint64()
+	spec.Params.EIP98Transition = math.MaxUint64
+	spec.Params.EIP86Transition = math.MaxUint64
+	spec.Params.EIP140Transition = genesis.Config.ByzantiumBlock.Uint64()
+	spec.Params.EIP211Transition = genesis.Config.ByzantiumBlock.Uint64()
+	spec.Params.EIP214Transition = genesis.Config.ByzantiumBlock.Uint64()
+	spec.Params.EIP658Transition = genesis.Config.ByzantiumBlock.Uint64()
+
+	spec.Genesis.Seal.Ethereum.Nonce = (hexutil.Bytes)(make([]byte, 8))
+	binary.LittleEndian.PutUint64(spec.Genesis.Seal.Ethereum.Nonce[:], genesis.Nonce)
+
+	spec.Genesis.Seal.Ethereum.MixHash = (hexutil.Bytes)(genesis.Mixhash[:])
+	spec.Genesis.Difficulty = (*hexutil.Big)(genesis.Difficulty)
+	spec.Genesis.Author = genesis.Coinbase
+	spec.Genesis.Timestamp = (hexutil.Uint64)(genesis.Timestamp)
+	spec.Genesis.ParentHash = genesis.ParentHash
+	spec.Genesis.ExtraData = (hexutil.Bytes)(genesis.ExtraData)
+	spec.Genesis.GasLimit = (hexutil.Uint64)(genesis.GasLimit)
+
+	spec.Accounts = make(map[common.Address]*parityChainSpecAccount)
+	for address, account := range genesis.Alloc {
+		spec.Accounts[address] = &parityChainSpecAccount{
+			Balance: (*hexutil.Big)(account.Balance),
+			Nonce:   account.Nonce,
+		}
+	}
+	spec.Accounts[common.BytesToAddress([]byte{1})].Builtin = &parityChainSpecBuiltin{
+		Name: "ecrecover", Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 3000}},
+	}
+	spec.Accounts[common.BytesToAddress([]byte{2})].Builtin = &parityChainSpecBuiltin{
+		Name: "sha256", Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 60, Word: 12}},
+	}
+	spec.Accounts[common.BytesToAddress([]byte{3})].Builtin = &parityChainSpecBuiltin{
+		Name: "ripemd160", Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 600, Word: 120}},
+	}
+	spec.Accounts[common.BytesToAddress([]byte{4})].Builtin = &parityChainSpecBuiltin{
+		Name: "identity", Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 15, Word: 3}},
+	}
+	if genesis.Config.ByzantiumBlock != nil {
+		spec.Accounts[common.BytesToAddress([]byte{5})].Builtin = &parityChainSpecBuiltin{
+			Name: "modexp", ActivateAt: genesis.Config.ByzantiumBlock.Uint64(), Pricing: &parityChainSpecPricing{ModExp: &parityChainSpecModExpPricing{Divisor: 20}},
+		}
+		spec.Accounts[common.BytesToAddress([]byte{6})].Builtin = &parityChainSpecBuiltin{
+			Name: "alt_bn128_add", ActivateAt: genesis.Config.ByzantiumBlock.Uint64(), Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 500}},
+		}
+		spec.Accounts[common.BytesToAddress([]byte{7})].Builtin = &parityChainSpecBuiltin{
+			Name: "alt_bn128_mul", ActivateAt: genesis.Config.ByzantiumBlock.Uint64(), Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 40000}},
+		}
+		spec.Accounts[common.BytesToAddress([]byte{8})].Builtin = &parityChainSpecBuiltin{
+			Name: "alt_bn128_pairing", ActivateAt: genesis.Config.ByzantiumBlock.Uint64(), Pricing: &parityChainSpecPricing{AltBnPairing: &parityChainSpecAltBnPairingPricing{Base: 100000, Pair: 80000}},
+		}
+	}
+	return spec, nil
+}
+
+// pyEthereumGenesisSpec represents the genesis specification format used by the
+// Python Ethereum implementation.
+type pyEthereumGenesisSpec struct {
+	Nonce      hexutil.Bytes     `json:"nonce"`
+	Timestamp  hexutil.Uint64    `json:"timestamp"`
+	ExtraData  hexutil.Bytes     `json:"extraData"`
+	GasLimit   hexutil.Uint64    `json:"gasLimit"`
+	Difficulty *hexutil.Big      `json:"difficulty"`
+	Mixhash    common.Hash       `json:"mixhash"`
+	Coinbase   common.Address    `json:"coinbase"`
+	Alloc      core.GenesisAlloc `json:"alloc"`
+	ParentHash common.Hash       `json:"parentHash"`
+}
+
+// newPyEthereumGenesisSpec converts a go-ethereum genesis block into a Parity specific
+// chain specification format.
+func newPyEthereumGenesisSpec(network string, genesis *core.Genesis) (*pyEthereumGenesisSpec, error) {
+	// Only ethash is currently supported between go-ethereum and pyethereum
+	if genesis.Config.Ethash == nil {
+		return nil, errors.New("unsupported consensus engine")
+	}
+	spec := &pyEthereumGenesisSpec{
+		Timestamp:  (hexutil.Uint64)(genesis.Timestamp),
+		ExtraData:  genesis.ExtraData,
+		GasLimit:   (hexutil.Uint64)(genesis.GasLimit),
+		Difficulty: (*hexutil.Big)(genesis.Difficulty),
+		Mixhash:    genesis.Mixhash,
+		Coinbase:   genesis.Coinbase,
+		Alloc:      genesis.Alloc,
+		ParentHash: genesis.ParentHash,
+	}
+	spec.Nonce = (hexutil.Bytes)(make([]byte, 8))
+	binary.LittleEndian.PutUint64(spec.Nonce[:], genesis.Nonce)
+
+	return spec, nil
+}

cmd/puppeth/module_dashboard.go

@@ -18,10 +18,12 @@ package main
 
 import (
 	"bytes"
+	"encoding/json"
 	"fmt"
 	"html/template"
 	"math/rand"
 	"path/filepath"
+	"strconv"
 	"strings"
 
 	"github.com/ethereum/go-ethereum/log"
@@ -76,25 +78,26 @@ var dashboardContent = `
 						<div id="sidebar-menu" class="main_menu_side hidden-print main_menu">
 							<div class="menu_section">
 								<ul class="nav side-menu">
-									{{if .EthstatsPage}}<li><a onclick="load('//{{.EthstatsPage}}')"><i class="fa fa-tachometer"></i> Network Stats</a></li>{{end}}
+									{{if .EthstatsPage}}<li id="stats_menu"><a onclick="load('#stats')"><i class="fa fa-tachometer"></i> Network Stats</a></li>{{end}}
-									{{if .ExplorerPage}}<li><a onclick="load('//{{.ExplorerPage}}')"><i class="fa fa-database"></i> Block Explorer</a></li>{{end}}
+									{{if .ExplorerPage}}<li id="explorer_menu"><a onclick="load('#explorer')"><i class="fa fa-database"></i> Block Explorer</a></li>{{end}}
-									{{if .WalletPage}}<li><a onclick="load('//{{.WalletPage}}')"><i class="fa fa-address-book-o"></i> Browser Wallet</a></li>{{end}}
+									{{if .WalletPage}}<li id="wallet_menu"><a onclick="load('#wallet')"><i class="fa fa-address-book-o"></i> Browser Wallet</a></li>{{end}}
-									{{if .FaucetPage}}<li><a onclick="load('//{{.FaucetPage}}')"><i class="fa fa-bath"></i> Crypto Faucet</a></li>{{end}}
+									{{if .FaucetPage}}<li id="faucet_menu"><a onclick="load('#faucet')"><i class="fa fa-bath"></i> Crypto Faucet</a></li>{{end}}
-									<li id="connect"><a><i class="fa fa-plug"></i> Connect Yourself</a>
+									<li id="connect_menu"><a><i class="fa fa-plug"></i> Connect Yourself</a>
 										<ul id="connect_list" class="nav child_menu">
-											<li><a onclick="$('#connect').removeClass('active'); $('#connect_list').toggle(); load('#connect-go-ethereum-geth')">Go Ethereum: Geth</a></li>
+											<li><a onclick="$('#connect_menu').removeClass('active'); $('#connect_list').toggle(); load('#geth')">Go Ethereum: Geth</a></li>
-											<li><a onclick="$('#connect').removeClass('active'); $('#connect_list').toggle(); load('#connect-go-ethereum-mist')">Go Ethereum: Wallet & Mist</a></li>
+											<li><a onclick="$('#connect_menu').removeClass('active'); $('#connect_list').toggle(); load('#mist')">Go Ethereum: Wallet & Mist</a></li>
-											<li><a onclick="$('#connect').removeClass('active'); $('#connect_list').toggle(); load('#connect-go-ethereum-mobile')">Go Ethereum: Android & iOS</a></li>
+											<li><a onclick="$('#connect_menu').removeClass('active'); $('#connect_list').toggle(); load('#mobile')">Go Ethereum: Android & iOS</a></li>{{if .Ethash}}
+											<li><a onclick="$('#connect_menu').removeClass('active'); $('#connect_list').toggle(); load('#other')">Other Ethereum Clients</a></li>{{end}}
 										</ul>
 									</li>
-									<li><a onclick="load('#about')"><i class="fa fa-heartbeat"></i> About Puppeth</a></li>
+									<li id="about_menu"><a onclick="load('#about')"><i class="fa fa-heartbeat"></i> About Puppeth</a></li>
 								</ul>
 							</div>
 						</div>
 					</div>
 				</div>
-				<div class="right_col" role="main" style="padding: 0">
+				<div class="right_col" role="main" style="padding: 0 !important">
-					<div id="connect-go-ethereum-geth" hidden style="padding: 16px;">
+					<div id="geth" hidden style="padding: 16px;">
 						<div class="page-title">
 							<div class="title_left">
 								<h3>Connect Yourself &ndash; Go Ethereum: Geth</h3>
@@ -154,7 +157,7 @@ var dashboardContent = `
 										<p>Initial processing required to synchronize is light, as it only verifies the validity of the headers; similarly required disk capacity is small, tallying around 500 bytes per header. Low end machines with arbitrary storage, weak CPUs and 512MB+ RAM should cope well.</p>
 										<br/>
 										<p>To run a light node, download <a href="/{{.GethGenesis}}"><code>{{.GethGenesis}}</code></a> and start Geth with:
-											<pre>geth --datadir=$HOME/.{{.Network}} --light init {{.GethGenesis}}</pre>
+											<pre>geth --datadir=$HOME/.{{.Network}} init {{.GethGenesis}}</pre>
 											<pre>geth --networkid={{.NetworkID}} --datadir=$HOME/.{{.Network}} --syncmode=light{{if .Ethstats}} --ethstats='{{.Ethstats}}'{{end}} --bootnodes={{.BootnodesLightFlat}}</pre>
 										</p>
 										<br/>
@@ -173,8 +176,8 @@ var dashboardContent = `
 										<p>Initial processing required to synchronize is light, as it only verifies the validity of the headers; similarly required disk capacity is small, tallying around 500 bytes per header. Embedded machines with arbitrary storage, low power CPUs and 128MB+ RAM may work.</p>
 										<br/>
 										<p>To run an embedded node, download <a href="/{{.GethGenesis}}"><code>{{.GethGenesis}}</code></a> and start Geth with:
-											<pre>geth --datadir=$HOME/.{{.Network}} --light init {{.GethGenesis}}</pre>
+											<pre>geth --datadir=$HOME/.{{.Network}} init {{.GethGenesis}}</pre>
-											<pre>geth --networkid={{.NetworkID}} --datadir=$HOME/.{{.Network}} --cache=32 --syncmode=light{{if .Ethstats}} --ethstats='{{.Ethstats}}'{{end}} --bootnodes={{.BootnodesLightFlat}}</pre>
+											<pre>geth --networkid={{.NetworkID}} --datadir=$HOME/.{{.Network}} --cache=16 --ethash.cachesinmem=1 --syncmode=light{{if .Ethstats}} --ethstats='{{.Ethstats}}'{{end}} --bootnodes={{.BootnodesLightFlat}}</pre>
 										</p>
 										<br/>
 										<p>You can download Geth from <a href="https://geth.ethereum.org/downloads/" target="about:blank">https://geth.ethereum.org/downloads/</a>.</p>
@@ -183,7 +186,7 @@ var dashboardContent = `
 							</div>
 						</div>
 					</div>
-					<div id="connect-go-ethereum-mist" hidden style="padding: 16px;">
+					<div id="mist" hidden style="padding: 16px;">
 						<div class="page-title">
 							<div class="title_left">
 								<h3>Connect Yourself &ndash; Go Ethereum: Wallet &amp; Mist</h3>
@@ -235,7 +238,7 @@ var dashboardContent = `
 							</div>
 						</div>
 					</div>
-					<div id="connect-go-ethereum-mobile" hidden style="padding: 16px;">
+					<div id="mobile" hidden style="padding: 16px;">
 						<div class="page-title">
 							<div class="title_left">
 								<h3>Connect Yourself &ndash; Go Ethereum: Android &amp; iOS</h3>
@@ -309,7 +312,101 @@ try! node?.start();
 								</div>
 							</div>
 						</div>
+					</div>{{if .Ethash}}
+					<div id="other" hidden style="padding: 16px;">
+						<div class="page-title">
+							<div class="title_left">
+								<h3>Connect Yourself &ndash; Other Ethereum Clients</h3>
 							</div>
+						</div>
+						<div class="clearfix"></div>
+						<div class="row">
+							<div class="col-md-6">
+								<div class="x_panel">
+									<div class="x_title">
+										<h2>
+											<svg height="14px" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 115 115"><path fill="#5C8DBC" d="M9.7 83.3V35.5s0-3.4 3.3-5.2c3.3-1.8 39.6-23.5 39.6-23.5s4.6-3.1 9.4 0c0 0 43.1 23.9 42.4 25.3L85.3 43.3s-3.6-8.4-13.1-13c-11.3-5.5-29.7-6.2-42.9 13.3 0 0-8.6 13.5.3 31.6l-19 10.7s-.9-.6-.9-2.6z"/><path fill="#5C8DBC" d="M71 51.3c-2.8-4.7-7.9-7.9-13.8-7.9-8.8 0-16 7.2-16 16 0 2.8.7 5.4 2 7.7L71 51.3z"/><path fill="#194674" d="M43.1 67c2.8 4.7 7.9 7.9 13.8 7.9 8.8 0 16-7.2 16-16 0-2.8-.7-5.4-2-7.7L43.1 67z"/><path fill="#1B598E" d="M104.4 32.1s1.3 52.6-.3 53.6L58 58.6l46.4-26.5z"/><path fill="#FFF" d="M90 57h-3.9v-4.1h-4.2V57h-4v4.1h4V65h4.2v-3.9H90zm13.6 0h-3.9v-4.1h-4.2V57h-4v4.1h4V65h4.2v-3.9h3.9z"/><path fill="#194674" d="M29.5 75.1s9.2 17 28.5 16.1 27.3-16.6 27.3-16.6L104 85.4s4.1.8-41.6 25.7c0 0-4.9 3.3-10.2 0 0 0-41.3-23.1-41.6-25.3l18.9-10.7z"/></svg>
+											C++ Ethereum <small>Official C++ client from the Ethereum Foundation</small>
+										</h2>
+										<div class="clearfix"></div>
+									</div>
+									<div class="x_content">
+										<p>C++ Ethereum is the third most popular of the Ethereum clients, focusing on code portability to a broad range of operating systems and hardware. The client is currently a full node with transaction processing based synchronization.</p>
+										<br/>
+										<p>To run a cpp-ethereum node, download <a href="/{{.CppGenesis}}"><code>{{.CppGenesis}}</code></a> and start the node with:
+											<pre>eth --config {{.CppGenesis}} --datadir $HOME/.{{.Network}} --peerset "{{.CppBootnodes}}"</pre>
+										</p>
+										<br/>
+										<p>You can find cpp-ethereum at <a href="https://github.com/ethereum/cpp-ethereum/" target="about:blank">https://github.com/ethereum/cpp-ethereum/</a>.</p>
+									</div>
+								</div>
+							</div>
+							<div class="col-md-6">
+								<div class="x_panel">
+									<div class="x_title">
+										<h2>
+											<svg height="14px" version="1.1" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><path d="M46.42,13.07S24.51,18.54,35,30.6c3.09,3.55-.81,6.75-0.81,6.75s7.84-4,4.24-9.11C35,23.51,32.46,21.17,46.42,13.07ZM32.1,16.88C45.05,6.65,38.4,0,38.4,0c2.68,10.57-9.46,13.76-13.84,20.34-3,4.48,1.46,9.3,7.53,14.77C29.73,29.77,21.71,25.09,32.1,16.88Z" transform="translate(-8.4)" fill="#e57125"/><path d="M23.6,49.49c-9.84,2.75,6,8.43,18.51,3.06a23.06,23.06,0,0,1-3.52-1.72,36.62,36.62,0,0,1-13.25.56C21.16,50.92,23.6,49.49,23.6,49.49Zm17-5.36a51.7,51.7,0,0,1-17.1.82c-4.19-.43-1.45-2.46-1.45-2.46-10.84,3.6,6,7.68,21.18,3.25A7.59,7.59,0,0,1,40.62,44.13ZM51.55,54.68s1.81,1.49-2,2.64c-7.23,2.19-30.1,2.85-36.45.09-2.28-1,2-2.37,3.35-2.66a8.69,8.69,0,0,1,2.21-.25c-2.54-1.79-16.41,3.51-7,5C37.15,63.67,58.17,57.67,51.55,54.68ZM42.77,39.12a20.42,20.42,0,0,1,2.93-1.57s-4.83.86-9.65,1.27A87.37,87.37,0,0,1,20.66,39c-7.51-1,4.12-3.77,4.12-3.77A22,22,0,0,0,14.7,37.61C8.14,40.79,31,42.23,42.77,39.12Zm2.88,7.77a1,1,0,0,1-.24.31C61.44,43,55.54,32.35,47.88,35a2.19,2.19,0,0,0-1,.79,9,9,0,0,1,1.37-.37C52.1,34.66,57.65,40.65,45.64,46.89Zm0.43,14.75a94.76,94.76,0,0,1-29.17.45s1.47,1.22,9,1.7c11.53,0.74,29.22-.41,29.64-5.86C55.6,57.94,54.79,60,46.08,61.65Z" transform="translate(-8.4)" fill="#5482a2"/></svg>
+											Ethereum Harmony<small>Third party Java client from EtherCamp</small>
+										</h2>
+										<div class="clearfix"></div>
+									</div>
+									<div class="x_content">
+										<p>Ethereum Harmony is a web user-interface based graphical Ethereum client built on top of the EthereumJ Java implementation of the Ethereum protocol. The client currently is a full node with state download based synchronization.</p>
+										<br/>
+										<p>To run an Ethereum Harmony node, download <a href="/{{.HarmonyGenesis}}"><code>{{.HarmonyGenesis}}</code></a> and start the node with:
+											<pre>./gradlew runCustom -DgenesisFile={{.HarmonyGenesis}} -Dpeer.networkId={{.NetworkID}} -Ddatabase.dir=$HOME/.harmony/{{.Network}} {{.HarmonyBootnodes}} </pre>
+										</p>
+										<br/>
+										<p>You can find Ethereum Harmony at <a href="https://github.com/ether-camp/ethereum-harmony/" target="about:blank">https://github.com/ether-camp/ethereum-harmony/</a>.</p>
+									</div>
+								</div>
+							</div>
+						</div>
+						<div class="clearfix"></div>
+						<div class="row">
+							<div class="col-md-6">
+								<div class="x_panel">
+									<div class="x_title">
+										<h2>
+											<svg height="14px" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:cc="http://creativecommons.org/ns#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 104.56749 104.56675" version="1.1" viewbox="0 0 144 144" y="0px" x="0px"><metadata id="metadata10"><rdf:RDF><cc:Work rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage" /></cc:Work></rdf:RDF></metadata><defs id="defs8" /><path style="fill:#676767;" id="path2" d="m 49.0125,12.3195 a 3.108,3.108 0 0 1 6.216,0 3.108,3.108 0 0 1 -6.216,0 m -37.077,28.14 a 3.108,3.108 0 0 1 6.216,0 3.108,3.108 0 0 1 -6.216,0 m 74.153,0.145 a 3.108,3.108 0 0 1 6.216,0 3.108,3.108 0 0 1 -6.216,0 m -65.156,4.258 c 1.43,-0.635 2.076,-2.311 1.441,-3.744 l -1.379,-3.118 h 5.423 v 24.444 h -10.941 a 38.265,38.265 0 0 1 -1.239,-14.607 z m 22.685,0.601 v -7.205 h 12.914 c 0.667,0 4.71,0.771 4.71,3.794 0,2.51 -3.101,3.41 -5.651,3.41 z m -17.631,38.793 a 3.108,3.108 0 0 1 6.216,0 3.108,3.108 0 0 1 -6.216,0 m 46.051,0.145 a 3.108,3.108 0 0 1 6.216,0 3.108,3.108 0 0 1 -6.216,0 m 0.961,-7.048 c -1.531,-0.328 -3.037,0.646 -3.365,2.18 l -1.56,7.28 a 38.265,38.265 0 0 1 -31.911,-0.153 l -1.559,-7.28 c -0.328,-1.532 -1.834,-2.508 -3.364,-2.179 l -6.427,1.38 a 38.265,38.265 0 0 1 -3.323,-3.917 h 31.272 c 0.354,0 0.59,-0.064 0.59,-0.386 v -11.062 c 0,-0.322 -0.236,-0.386 -0.59,-0.386 h -9.146 v -7.012 h 9.892 c 0.903,0 4.828,0.258 6.083,5.275 0.393,1.543 1.256,6.562 1.846,8.169 0.588,1.802 2.982,5.402 5.533,5.402 h 16.146 a 38.265,38.265 0 0 1 -3.544,4.102 z m 17.365,-29.207 a 38.265,38.265 0 0 1 0.081,6.643 h -3.926 c -0.393,0 -0.551,0.258 -0.551,0.643 v 1.803 c 0,4.244 -2.393,5.167 -4.49,5.402 -1.997,0.225 -4.211,-0.836 -4.484,-2.058 -1.178,-6.626 -3.141,-8.041 -6.241,-10.486 3.847,-2.443 7.85,-6.047 7.85,-10.871 0,-5.209 -3.571,-8.49 -6.005,-10.099 -3.415,-2.251 -7.196,-2.702 -8.216,-2.702 h -40.603 a 38.265,38.265 0 0 1 21.408,-12.082 l 4.786,5.021 c 1.082,1.133 2.874,1.175 4.006,0.092 l 5.355,-5.122 a 38.265,38.265 0 0 1 26.196,18.657 l -3.666,8.28 c -0.633,1.433 0.013,3.109 1.442,3.744 z m 9.143,0.134 -0.125,-1.28 3.776,-3.522 c 0.768,-0.716 0.481,-2.157 -0.501,-2.523 l -4.827,-1.805 -0.378,-1.246 3.011,-4.182 c 0.614,-0.85 0.05,-2.207 -0.984,-2.377 l -5.09,-0.828 -0.612,-1.143 2.139,-4.695 c 0.438,-0.956 -0.376,-2.179 -1.428,-2.139 l -5.166,0.18 -0.816,-0.99 1.187,-5.032 c 0.24,-1.022 -0.797,-2.06 -1.819,-1.82 l -5.031,1.186 -0.992,-0.816 0.181,-5.166 c 0.04,-1.046 -1.184,-1.863 -2.138,-1.429 l -4.694,2.14 -1.143,-0.613 -0.83,-5.091 c -0.168,-1.032 -1.526,-1.596 -2.376,-0.984 l -4.185,3.011 -1.244,-0.377 -1.805,-4.828 c -0.366,-0.984 -1.808,-1.267 -2.522,-0.503 l -3.522,3.779 -1.28,-0.125 -2.72,-4.395 c -0.55,-0.89 -2.023,-0.89 -2.571,0 l -2.72,4.395 -1.281,0.125 -3.523,-3.779 c -0.714,-0.764 -2.156,-0.481 -2.522,0.503 l -1.805,4.828 -1.245,0.377 -4.184,-3.011 c -0.85,-0.614 -2.209,-0.048 -2.377,0.984 l -0.83,5.091 -1.143,0.613 -4.694,-2.14 c -0.954,-0.436 -2.178,0.383 -2.138,1.429 l 0.18,5.166 -0.992,0.816 -5.031,-1.186 c -1.022,-0.238 -2.06,0.798 -1.82,1.82 l 1.185,5.032 -0.814,0.99 -5.166,-0.18 c -1.042,-0.03 -1.863,1.183 -1.429,2.139 l 2.14,4.695 -0.613,1.143 -5.09,0.828 c -1.034,0.168 -1.594,1.527 -0.984,2.377 l 3.011,4.182 -0.378,1.246 -4.828,1.805 c -0.98,0.366 -1.267,1.807 -0.501,2.523 l 3.777,3.522 -0.125,1.28 -4.394,2.72 c -0.89,0.55 -0.89,2.023 0,2.571 l 4.394,2.72 0.125,1.28 -3.777,3.523 c -0.766,0.714 -0.479,2.154 0.501,2.522 l 4.828,1.805 0.378,1.246 -3.011,4.183 c -0.612,0.852 -0.049,2.21 0.985,2.376 l 5.089,0.828 0.613,1.145 -2.14,4.693 c -0.436,0.954 0.387,2.181 1.429,2.139 l 5.164,-0.181 0.816,0.992 -1.185,5.033 c -0.24,1.02 0.798,2.056 1.82,1.816 l 5.031,-1.185 0.992,0.814 -0.18,5.167 c -0.04,1.046 1.184,1.864 2.138,1.428 l 4.694,-2.139 1.143,0.613 0.83,5.088 c 0.168,1.036 1.527,1.596 2.377,0.986 l 4.182,-3.013 1.246,0.379 1.805,4.826 c 0.366,0.98 1.808,1.269 2.522,0.501 l 3.523,-3.777 1.281,0.128 2.72,4.394 c 0.548,0.886 2.021,0.888 2.571,0 l 2.72,-4.394 1.28,-0.128 3.522,3.777 c 0.714,0.768 2.156,0.479 2.522,-0.501 l 1.805,-4.826 1.246,-0.379 4.183,3.013 c 0.85,0.61 2.208,0.048 2.376,-0.986 l 0.83,-5.088 1.143,-0.613 4.694,2.139 c 0.954,0.436 2.176,-0.38 2.138,-1.428 l -0.18,-5.167 0.991,-0.814 5.031,1.185 c 1.022,0.24 2.059,-0.796 1.819,-1.816 l -1.185,-5.033 0.814,-0.992 5.166,0.181 c 1.042,0.042 1.866,-1.185 1.428,-2.139 l -2.139,-4.693 0.612,-1.145 5.09,-0.828 c 1.036,-0.166 1.598,-1.524 0.984,-2.376 l -3.011,-4.183 0.378,-1.246 4.827,-1.805 c 0.982,-0.368 1.269,-1.808 0.501,-2.522 l -3.776,-3.523 0.125,-1.28 4.394,-2.72 c 0.89,-0.548 0.891,-2.021 10e-4,-2.571 z" /></svg>
+											Parity<small>Third party Rust client from Parity Technologies</small>
+										</h2>
+										<div class="clearfix"></div>
+									</div>
+									<div class="x_content">
+										<p>Parity is a fast, light and secure Ethereum client, supporting both headless mode of operation as well as a web user interface for direct manual interaction. The client is currently a full node with transaction processing based synchronization and state pruning enabled.</p>
+										<br/>
+										<p>To run a Parity node, download <a href="/{{.ParityGenesis}}"><code>{{.ParityGenesis}}</code></a> and start the node with:
+											<pre>parity --chain={{.ParityGenesis}}</pre>
+										</p>
+										<br/>
+										<p>You can find Parity at <a href="https://parity.io/" target="about:blank">https://parity.io/</a>.</p>
+									</div>
+								</div>
+							</div>
+							<div class="col-md-6">
+								<div class="x_panel">
+									<div class="x_title">
+										<h2>
+											<svg height="14px" version="1.1" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><defs><linearGradient id="a" x1="13.79" y1="38.21" x2="75.87" y2="-15.2" gradientTransform="matrix(0.56, 0, 0, -0.57, -8.96, 23.53)" gradientUnits="userSpaceOnUse"><stop offset="0" stop-color="#5c9fd3"/><stop offset="1" stop-color="#316a99"/></linearGradient><linearGradient id="b" x1="99.87" y1="-47.53" x2="77.7" y2="-16.16" gradientTransform="matrix(0.56, 0, 0, -0.57, -8.96, 23.53)" gradientUnits="userSpaceOnUse"><stop offset="0" stop-color="#ffd43d"/><stop offset="1" stop-color="#fee875"/></linearGradient></defs><g><path d="M31.62,0a43.6,43.6,0,0,0-7.3.62c-6.46,1.14-7.63,3.53-7.63,7.94v5.82H32v1.94H11a9.53,9.53,0,0,0-9.54,7.74,28.54,28.54,0,0,0,0,15.52c1.09,4.52,3.68,7.74,8.11,7.74h5.25v-7a9.7,9.7,0,0,1,9.54-9.48H39.58a7.69,7.69,0,0,0,7.63-7.76V8.56c0-4.14-3.49-7.25-7.63-7.94A47.62,47.62,0,0,0,31.62,0ZM23.37,4.68A2.91,2.91,0,1,1,20.5,7.6,2.9,2.9,0,0,1,23.37,4.68Z" transform="translate(-0.35)" fill="url(#a)"/><path d="M49.12,16.32V23.1a9.79,9.79,0,0,1-9.54,9.68H24.33a7.79,7.79,0,0,0-7.63,7.76V55.08c0,4.14,3.6,6.57,7.63,7.76a25.55,25.55,0,0,0,15.25,0c3.84-1.11,7.63-3.35,7.63-7.76V49.26H32V47.32H54.85c4.44,0,6.09-3.1,7.63-7.74s1.53-9.38,0-15.52c-1.1-4.42-3.19-7.74-7.63-7.74H49.12ZM40.54,53.14A2.91,2.91,0,1,1,37.67,56,2.88,2.88,0,0,1,40.54,53.14Z" transform="translate(-0.35)" fill="url(#b)"/></g></svg>
+											PyEthApp<small>Official Python client from the Ethereum Foundation</small>
+										</h2>
+										<div class="clearfix"></div>
+									</div>
+									<div class="x_content">
+										<p>Pyethapp is the Ethereum Foundation's research client, aiming to provide an easily hackable and extendable codebase. The client is currently a full node with transaction processing based synchronization and state pruning enabled.</p>
+										<br/>
+										<p>To run a pyethapp node, download <a href="/{{.PythonGenesis}}"><code>{{.PythonGenesis}}</code></a> and start the node with:
+											<pre>mkdir -p $HOME/.config/pyethapp/{{.Network}}</pre>
+											<pre>pyethapp -c eth.genesis="$(cat {{.PythonGenesis}})" -c eth.network_id={{.NetworkID}} -c data_dir=$HOME/.config/pyethapp/{{.Network}} -c discovery.bootstrap_nodes="[{{.PythonBootnodes}}]" -c eth.block.HOMESTEAD_FORK_BLKNUM={{.Homestead}} -c eth.block.ANTI_DOS_FORK_BLKNUM={{.Tangerine}} -c eth.block.SPURIOUS_DRAGON_FORK_BLKNUM={{.Spurious}} -c eth.block.METROPOLIS_FORK_BLKNUM={{.Byzantium}} -c eth.block.DAO_FORK_BLKNUM=18446744073709551615 run --console</pre>
+										</p>
+										<br/>
+										<p>You can find pyethapp at <a href="https://github.com/ethereum/pyethapp/" target="about:blank">https://github.com/ethereum/pyethapp/</a>.</p>
+									</div>
+								</div>
+							</div>
+						</div>
+					</div>{{end}}
 					<div id="about" hidden>
 						<div class="row vertical-center">
 							<div style="margin: 0 auto;">
@@ -344,13 +441,33 @@ try! node?.start();
 		<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
 		<script src="https://cdnjs.cloudflare.com/ajax/libs/gentelella/1.3.0/js/custom.min.js"></script>
 		<script>
-			var load = function(url) {
+			var load = function(hash) {
-				$("#connect-go-ethereum-geth").fadeOut(300)
+				window.location.hash = hash;
-				$("#connect-go-ethereum-mist").fadeOut(300)
+
-				$("#connect-go-ethereum-mobile").fadeOut(300)
+				// Fade out all possible pages (yes, ugly, no, don't care)
+				$("#geth").fadeOut(300)
+				$("#mist").fadeOut(300)
+				$("#mobile").fadeOut(300)
+				$("#other").fadeOut(300)
 				$("#about").fadeOut(300)
 				$("#frame-wrapper").fadeOut(300);
 
+				// Depending on the hash, resolve it into a local or remote URL
+				var url = hash;
+				switch (hash) {
+					case "#stats":
+						url = "//{{.EthstatsPage}}";
+						break;
+					case "#explorer":
+						url = "//{{.ExplorerPage}}";
+						break;
+					case "#wallet":
+						url = "//{{.WalletPage}}";
+						break;
+					case "#faucet":
+						url = "//{{.FaucetPage}}";
+						break;
+				}
 				setTimeout(function() {
 					if (url.substring(0, 1) == "#") {
 						$('.body').css({overflowY: 'auto'});
@@ -364,13 +481,10 @@ try! node?.start();
 			}
 			var resize = function() {
 				var sidebar = $($(".navbar")[0]).width();
-				var content = 1920;
 				var limit   = document.body.clientWidth - sidebar;
-				var scale   = limit / content;
+				var scale   = limit / 1920;
 
-				console.log(document.body.clientHeight);
+				$("#frame-wrapper").width(limit);
-
-				$("#frame-wrapper").width(content / scale);
 				$("#frame-wrapper").height(document.body.clientHeight / scale);
 				$("#frame-wrapper").css({
 					transform: 'scale(' + (scale) + ')',
@@ -379,9 +493,17 @@ try! node?.start();
 			};
 			$(window).resize(resize);
 
+			if (window.location.hash == "") {
 				var item = $(".side-menu").children()[0];
 				$(item).children()[0].click();
 				$(item).addClass("active");
+			} else {
+				load(window.location.hash);
+				var menu = $(window.location.hash + "_menu");
+				if (menu !== undefined) {
+					$(menu).addClass("active");
+				}
+			}
 		</script>
 	</body>
 </html>
@@ -405,6 +527,10 @@ RUN \
 	echo '});'                                                             >> server.js
 
 ADD {{.Network}}.json /dashboard/{{.Network}}.json
+ADD {{.Network}}-cpp.json /dashboard/{{.Network}}-cpp.json
+ADD {{.Network}}-harmony.json /dashboard/{{.Network}}-harmony.json
+ADD {{.Network}}-parity.json /dashboard/{{.Network}}-parity.json
+ADD {{.Network}}-python.json /dashboard/{{.Network}}-python.json
 ADD index.html /dashboard/index.html
 ADD puppeth.png /dashboard/puppeth.png
 
@@ -422,8 +548,12 @@ services:
     build: .
     image: {{.Network}}/dashboard{{if not .VHost}}
     ports:
-      - "{{.Port}}:80"{{else}}
+      - "{{.Port}}:80"{{end}}
     environment:
+      - ETHSTATS_PAGE={{.EthstatsPage}}
+      - EXPLORER_PAGE={{.ExplorerPage}}
+      - WALLET_PAGE={{.WalletPage}}
+      - FAUCET_PAGE={{.FaucetPage}}{{if .VHost}}
       - VIRTUAL_HOST={{.VHost}}{{end}}
     logging:
       driver: "json-file"
@@ -436,7 +566,7 @@ services:
 // deployDashboard deploys a new dashboard container to a remote machine via SSH,
 // docker and docker-compose. If an instance with the specified network name
 // already exists there, it will be overwritten!
-func deployDashboard(client *sshClient, network string, port int, vhost string, services map[string]string, conf *config, ethstats bool) ([]byte, error) {
+func deployDashboard(client *sshClient, network string, conf *config, config *dashboardInfos, nocache bool) ([]byte, error) {
 	// Generate the content to upload to the server
 	workdir := fmt.Sprintf("%d", rand.Int63())
 	files := make(map[string][]byte)
@@ -450,36 +580,94 @@ func deployDashboard(client *sshClient, network string, port int, vhost string,
 	composefile := new(bytes.Buffer)
 	template.Must(template.New("").Parse(dashboardComposefile)).Execute(composefile, map[string]interface{}{
 		"Network":      network,
-		"Port":    port,
+		"Port":         config.port,
-		"VHost":   vhost,
+		"VHost":        config.host,
+		"EthstatsPage": config.ethstats,
+		"ExplorerPage": config.explorer,
+		"WalletPage":   config.wallet,
+		"FaucetPage":   config.faucet,
 	})
 	files[filepath.Join(workdir, "docker-compose.yaml")] = composefile.Bytes()
 
 	statsLogin := fmt.Sprintf("yournode:%s", conf.ethstats)
-	if !ethstats {
+	if !config.trusted {
 		statsLogin = ""
 	}
 	indexfile := new(bytes.Buffer)
+	bootCpp := make([]string, len(conf.bootFull))
+	for i, boot := range conf.bootFull {
+		bootCpp[i] = "required:" + strings.TrimPrefix(boot, "enode://")
+	}
+	bootHarmony := make([]string, len(conf.bootFull))
+	for i, boot := range conf.bootFull {
+		bootHarmony[i] = fmt.Sprintf("-Dpeer.active.%d.url=%s", i, boot)
+	}
+	bootPython := make([]string, len(conf.bootFull))
+	for i, boot := range conf.bootFull {
+		bootPython[i] = "'" + boot + "'"
+	}
 	template.Must(template.New("").Parse(dashboardContent)).Execute(indexfile, map[string]interface{}{
 		"Network":            network,
-		"NetworkID":          conf.genesis.Config.ChainId,
+		"NetworkID":          conf.Genesis.Config.ChainId,
 		"NetworkTitle":       strings.Title(network),
-		"EthstatsPage":       services["ethstats"],
+		"EthstatsPage":       config.ethstats,
-		"ExplorerPage":       services["explorer"],
+		"ExplorerPage":       config.explorer,
-		"WalletPage":         services["wallet"],
+		"WalletPage":         config.wallet,
-		"FaucetPage":         services["faucet"],
+		"FaucetPage":         config.faucet,
 		"GethGenesis":        network + ".json",
 		"BootnodesFull":      conf.bootFull,
 		"BootnodesLight":     conf.bootLight,
 		"BootnodesFullFlat":  strings.Join(conf.bootFull, ","),
 		"BootnodesLightFlat": strings.Join(conf.bootLight, ","),
 		"Ethstats":           statsLogin,
+		"Ethash":             conf.Genesis.Config.Ethash != nil,
+		"CppGenesis":         network + "-cpp.json",
+		"CppBootnodes":       strings.Join(bootCpp, " "),
+		"HarmonyGenesis":     network + "-harmony.json",
+		"HarmonyBootnodes":   strings.Join(bootHarmony, " "),
+		"ParityGenesis":      network + "-parity.json",
+		"PythonGenesis":      network + "-python.json",
+		"PythonBootnodes":    strings.Join(bootPython, ","),
+		"Homestead":          conf.Genesis.Config.HomesteadBlock,
+		"Tangerine":          conf.Genesis.Config.EIP150Block,
+		"Spurious":           conf.Genesis.Config.EIP155Block,
+		"Byzantium":          conf.Genesis.Config.ByzantiumBlock,
 	})
 	files[filepath.Join(workdir, "index.html")] = indexfile.Bytes()
 
-	genesis, _ := conf.genesis.MarshalJSON()
+	// Marshal the genesis spec files for go-ethereum and all the other clients
+	genesis, _ := conf.Genesis.MarshalJSON()
 	files[filepath.Join(workdir, network+".json")] = genesis
 
+	if conf.Genesis.Config.Ethash != nil {
+		cppSpec, err := newCppEthereumGenesisSpec(network, conf.Genesis)
+		if err != nil {
+			return nil, err
+		}
+		cppSpecJSON, _ := json.Marshal(cppSpec)
+		files[filepath.Join(workdir, network+"-cpp.json")] = cppSpecJSON
+
+		harmonySpecJSON, _ := conf.Genesis.MarshalJSON()
+		files[filepath.Join(workdir, network+"-harmony.json")] = harmonySpecJSON
+
+		paritySpec, err := newParityChainSpec(network, conf.Genesis, conf.bootFull)
+		if err != nil {
+			return nil, err
+		}
+		paritySpecJSON, _ := json.Marshal(paritySpec)
+		files[filepath.Join(workdir, network+"-parity.json")] = paritySpecJSON
+
+		pyethSpec, err := newPyEthereumGenesisSpec(network, conf.Genesis)
+		if err != nil {
+			return nil, err
+		}
+		pyethSpecJSON, _ := json.Marshal(pyethSpec)
+		files[filepath.Join(workdir, network+"-python.json")] = pyethSpecJSON
+	} else {
+		for _, client := range []string{"cpp", "harmony", "parity", "python"} {
+			files[filepath.Join(workdir, network+"-"+client+".json")] = []byte{}
+		}
+	}
 	files[filepath.Join(workdir, "puppeth.png")] = dashboardMascot
 
 	// Upload the deployment files to the remote server (and clean up afterwards)
@@ -489,7 +677,10 @@ func deployDashboard(client *sshClient, network string, port int, vhost string,
 	defer client.Run("rm -rf " + workdir)
 
 	// Build and deploy the dashboard service
-	return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s up -d --build", workdir, network))
+	if nocache {
+		return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s build --pull --no-cache && docker-compose -p %s up -d --force-recreate", workdir, network, network))
+	}
+	return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s up -d --build --force-recreate", workdir, network))
 }
 
 // dashboardInfos is returned from an dashboard status check to allow reporting
@@ -497,11 +688,25 @@ func deployDashboard(client *sshClient, network string, port int, vhost string,
 type dashboardInfos struct {
 	host    string
 	port    int
+	trusted bool
+
+	ethstats string
+	explorer string
+	wallet   string
+	faucet   string
 }
 
-// String implements the stringer interface.
+// Report converts the typed struct into a plain string->string map, containing
-func (info *dashboardInfos) String() string {
+// most - but not all - fields for reporting to the user.
-	return fmt.Sprintf("host=%s, port=%d", info.host, info.port)
+func (info *dashboardInfos) Report() map[string]string {
+	return map[string]string{
+		"Website address":       info.host,
+		"Website listener port": strconv.Itoa(info.port),
+		"Ethstats service":      info.ethstats,
+		"Explorer service":      info.explorer,
+		"Wallet service":        info.wallet,
+		"Faucet service":        info.faucet,
+	}
 }
 
 // checkDashboard does a health-check against a dashboard container to verify if
@@ -538,5 +743,9 @@ func checkDashboard(client *sshClient, network string) (*dashboardInfos, error)
 	return &dashboardInfos{
 		host:     host,
 		port:     port,
+		ethstats: infos.envvars["ETHSTATS_PAGE"],
+		explorer: infos.envvars["EXPLORER_PAGE"],
+		wallet:   infos.envvars["WALLET_PAGE"],
+		faucet:   infos.envvars["FAUCET_PAGE"],
 	}, nil
 }

cmd/puppeth/module_ethstats.go

@@ -21,6 +21,7 @@ import (
 	"fmt"
 	"math/rand"
 	"path/filepath"
+	"strconv"
 	"strings"
 	"text/template"
 
@@ -30,21 +31,9 @@ import (
 // ethstatsDockerfile is the Dockerfile required to build an ethstats backend
 // and associated monitoring site.
 var ethstatsDockerfile = `
-FROM mhart/alpine-node:latest
+FROM puppeth/ethstats:latest
-
-RUN \
-  apk add --update git                                         && \
-  git clone --depth=1 https://github.com/karalabe/eth-netstats && \
-	apk del git && rm -rf /var/cache/apk/*                       && \
-	\
-  cd /eth-netstats && npm install && npm install -g grunt-cli && grunt
-
-WORKDIR /eth-netstats
-EXPOSE 3000
 
 RUN echo 'module.exports = {trusted: [{{.Trusted}}], banned: [{{.Banned}}], reserved: ["yournode"]};' > lib/utils/config.js
-
-CMD ["npm", "start"]
 `
 
 // ethstatsComposefile is the docker-compose.yml file required to deploy and
@@ -72,7 +61,7 @@ services:
 // deployEthstats deploys a new ethstats container to a remote machine via SSH,
 // docker and docker-compose. If an instance with the specified network name
 // already exists there, it will be overwritten!
-func deployEthstats(client *sshClient, network string, port int, secret string, vhost string, trusted []string, banned []string) ([]byte, error) {
+func deployEthstats(client *sshClient, network string, port int, secret string, vhost string, trusted []string, banned []string, nocache bool) ([]byte, error) {
 	// Generate the content to upload to the server
 	workdir := fmt.Sprintf("%d", rand.Int63())
 	files := make(map[string][]byte)
@@ -110,7 +99,10 @@ func deployEthstats(client *sshClient, network string, port int, secret string,
 	defer client.Run("rm -rf " + workdir)
 
 	// Build and deploy the ethstats service
-	return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s up -d --build", workdir, network))
+	if nocache {
+		return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s build --pull --no-cache && docker-compose -p %s up -d --force-recreate", workdir, network, network))
+	}
+	return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s up -d --build --force-recreate", workdir, network))
 }
 
 // ethstatsInfos is returned from an ethstats status check to allow reporting
@@ -123,9 +115,15 @@ type ethstatsInfos struct {
 	banned []string
 }
 
-// String implements the stringer interface.
+// Report converts the typed struct into a plain string->string map, containing
-func (info *ethstatsInfos) String() string {
+// most - but not all - fields for reporting to the user.
-	return fmt.Sprintf("host=%s, port=%d, secret=%s, banned=%v", info.host, info.port, info.secret, info.banned)
+func (info *ethstatsInfos) Report() map[string]string {
+	return map[string]string{
+		"Website address":       info.host,
+		"Website listener port": strconv.Itoa(info.port),
+		"Login secret":          info.secret,
+		"Banned addresses":      fmt.Sprintf("%v", info.banned),
+	}
 }
 
 // checkEthstats does a health-check against an ethstats server to verify whether

cmd/puppeth/module_explorer.go

@@ -0,0 +1,211 @@
+// Copyright 2017 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 <http://www.gnu.org/licenses/>.
+
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"html/template"
+	"math/rand"
+	"path/filepath"
+	"strconv"
+	"strings"
+
+	"github.com/ethereum/go-ethereum/log"
+)
+
+// explorerDockerfile is the Dockerfile required to run a block explorer.
+var explorerDockerfile = `
+FROM puppeth/explorer:latest
+
+ADD ethstats.json /ethstats.json
+ADD chain.json /chain.json
+
+RUN \
+  echo '(cd ../eth-net-intelligence-api && pm2 start /ethstats.json)' >  explorer.sh && \
+	echo '(cd ../etherchain-light && npm start &)'                      >> explorer.sh && \
+	echo '/parity/parity --chain=/chain.json --port={{.NodePort}} --tracing=on --fat-db=on --pruning=archive' >> explorer.sh
+
+ENTRYPOINT ["/bin/sh", "explorer.sh"]
+`
+
+// explorerEthstats is the configuration file for the ethstats javascript client.
+var explorerEthstats = `[
+  {
+    "name"              : "node-app",
+    "script"            : "app.js",
+    "log_date_format"   : "YYYY-MM-DD HH:mm Z",
+    "merge_logs"        : false,
+    "watch"             : false,
+    "max_restarts"      : 10,
+    "exec_interpreter"  : "node",
+    "exec_mode"         : "fork_mode",
+    "env":
+    {
+      "NODE_ENV"        : "production",
+      "RPC_HOST"        : "localhost",
+      "RPC_PORT"        : "8545",
+      "LISTENING_PORT"  : "{{.Port}}",
+      "INSTANCE_NAME"   : "{{.Name}}",
+      "CONTACT_DETAILS" : "",
+      "WS_SERVER"       : "{{.Host}}",
+      "WS_SECRET"       : "{{.Secret}}",
+      "VERBOSITY"       : 2
+    }
+  }
+]`
+
+// explorerComposefile is the docker-compose.yml file required to deploy and
+// maintain a block explorer.
+var explorerComposefile = `
+version: '2'
+services:
+  explorer:
+    build: .
+    image: {{.Network}}/explorer
+    ports:
+      - "{{.NodePort}}:{{.NodePort}}"
+      - "{{.NodePort}}:{{.NodePort}}/udp"{{if not .VHost}}
+      - "{{.WebPort}}:3000"{{end}}
+    volumes:
+      - {{.Datadir}}:/root/.local/share/io.parity.ethereum
+    environment:
+      - NODE_PORT={{.NodePort}}/tcp
+      - STATS={{.Ethstats}}{{if .VHost}}
+      - VIRTUAL_HOST={{.VHost}}
+      - VIRTUAL_PORT=3000{{end}}
+    logging:
+      driver: "json-file"
+      options:
+        max-size: "1m"
+        max-file: "10"
+    restart: always
+`
+
+// deployExplorer deploys a new block explorer container to a remote machine via
+// SSH, docker and docker-compose. If an instance with the specified network name
+// already exists there, it will be overwritten!
+func deployExplorer(client *sshClient, network string, chainspec []byte, config *explorerInfos, nocache bool) ([]byte, error) {
+	// Generate the content to upload to the server
+	workdir := fmt.Sprintf("%d", rand.Int63())
+	files := make(map[string][]byte)
+
+	dockerfile := new(bytes.Buffer)
+	template.Must(template.New("").Parse(explorerDockerfile)).Execute(dockerfile, map[string]interface{}{
+		"NodePort": config.nodePort,
+	})
+	files[filepath.Join(workdir, "Dockerfile")] = dockerfile.Bytes()
+
+	ethstats := new(bytes.Buffer)
+	template.Must(template.New("").Parse(explorerEthstats)).Execute(ethstats, map[string]interface{}{
+		"Port":   config.nodePort,
+		"Name":   config.ethstats[:strings.Index(config.ethstats, ":")],
+		"Secret": config.ethstats[strings.Index(config.ethstats, ":")+1 : strings.Index(config.ethstats, "@")],
+		"Host":   config.ethstats[strings.Index(config.ethstats, "@")+1:],
+	})
+	files[filepath.Join(workdir, "ethstats.json")] = ethstats.Bytes()
+
+	composefile := new(bytes.Buffer)
+	template.Must(template.New("").Parse(explorerComposefile)).Execute(composefile, map[string]interface{}{
+		"Datadir":  config.datadir,
+		"Network":  network,
+		"NodePort": config.nodePort,
+		"VHost":    config.webHost,
+		"WebPort":  config.webPort,
+		"Ethstats": config.ethstats[:strings.Index(config.ethstats, ":")],
+	})
+	files[filepath.Join(workdir, "docker-compose.yaml")] = composefile.Bytes()
+
+	files[filepath.Join(workdir, "chain.json")] = chainspec
+
+	// Upload the deployment files to the remote server (and clean up afterwards)
+	if out, err := client.Upload(files); err != nil {
+		return out, err
+	}
+	defer client.Run("rm -rf " + workdir)
+
+	// Build and deploy the boot or seal node service
+	if nocache {
+		return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s build --pull --no-cache && docker-compose -p %s up -d --force-recreate", workdir, network, network))
+	}
+	return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s up -d --build --force-recreate", workdir, network))
+}
+
+// explorerInfos is returned from a block explorer status check to allow reporting
+// various configuration parameters.
+type explorerInfos struct {
+	datadir  string
+	ethstats string
+	nodePort int
+	webHost  string
+	webPort  int
+}
+
+// Report converts the typed struct into a plain string->string map, containing
+// most - but not all - fields for reporting to the user.
+func (info *explorerInfos) Report() map[string]string {
+	report := map[string]string{
+		"Data directory":         info.datadir,
+		"Node listener port ":    strconv.Itoa(info.nodePort),
+		"Ethstats username":      info.ethstats,
+		"Website address ":       info.webHost,
+		"Website listener port ": strconv.Itoa(info.webPort),
+	}
+	return report
+}
+
+// checkExplorer does a health-check against an block explorer server to verify
+// whether it's running, and if yes, whether it's responsive.
+func checkExplorer(client *sshClient, network string) (*explorerInfos, error) {
+	// Inspect a possible block explorer container on the host
+	infos, err := inspectContainer(client, fmt.Sprintf("%s_explorer_1", network))
+	if err != nil {
+		return nil, err
+	}
+	if !infos.running {
+		return nil, ErrServiceOffline
+	}
+	// Resolve the port from the host, or the reverse proxy
+	webPort := infos.portmap["3000/tcp"]
+	if webPort == 0 {
+		if proxy, _ := checkNginx(client, network); proxy != nil {
+			webPort = proxy.port
+		}
+	}
+	if webPort == 0 {
+		return nil, ErrNotExposed
+	}
+	// Resolve the host from the reverse-proxy and the config values
+	host := infos.envvars["VIRTUAL_HOST"]
+	if host == "" {
+		host = client.server
+	}
+	// Run a sanity check to see if the devp2p is reachable
+	nodePort := infos.portmap[infos.envvars["NODE_PORT"]]
+	if err = checkPort(client.server, nodePort); err != nil {
+		log.Warn(fmt.Sprintf("Explorer devp2p port seems unreachable"), "server", client.server, "port", nodePort, "err", err)
+	}
+	// Assemble and return the useful infos
+	stats := &explorerInfos{
+		datadir:  infos.volumes["/root/.local/share/io.parity.ethereum"],
+		nodePort: nodePort,
+		webHost:  host,
+		webPort:  webPort,
+		ethstats: infos.envvars["STATS"],
+	}
+	return stats, nil
+}

cmd/puppeth/module_faucet.go

@@ -18,6 +18,7 @@ package main
 
 import (
 	"bytes"
+	"encoding/json"
 	"fmt"
 	"html/template"
 	"math/rand"
@@ -25,36 +26,24 @@ import (
 	"strconv"
 	"strings"
 
+	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/log"
 )
 
 // faucetDockerfile is the Dockerfile required to build an faucet container to
 // grant crypto tokens based on GitHub authentications.
 var faucetDockerfile = `
-FROM alpine:latest
+FROM ethereum/client-go:alltools-latest
-
-RUN mkdir /go
-ENV GOPATH /go
-
-RUN \
-  apk add --update git go make gcc musl-dev ca-certificates linux-headers                             && \
-	mkdir -p $GOPATH/src/github.com/ethereum                                                            && \
-	(cd $GOPATH/src/github.com/ethereum && git clone --depth=1 https://github.com/ethereum/go-ethereum) && \
-  go build -v github.com/ethereum/go-ethereum/cmd/faucet                                              && \
-  apk del git go make gcc musl-dev linux-headers                                                      && \
-  rm -rf $GOPATH && rm -rf /var/cache/apk/*
 
 ADD genesis.json /genesis.json
 ADD account.json /account.json
 ADD account.pass /account.pass
 
-EXPOSE 8080
+ENTRYPOINT [ \
-
+	"faucet", "--genesis", "/genesis.json", "--network", "{{.NetworkID}}", "--bootnodes", "{{.Bootnodes}}", "--ethstats", "{{.Ethstats}}", "--ethport", "{{.EthPort}}",     \
-CMD [ \
-	"/faucet", "--genesis", "/genesis.json", "--network", "{{.NetworkID}}", "--bootnodes", "{{.Bootnodes}}", "--ethstats", "{{.Ethstats}}", "--ethport", "{{.EthPort}}", \
 	"--faucet.name", "{{.FaucetName}}", "--faucet.amount", "{{.FaucetAmount}}", "--faucet.minutes", "{{.FaucetMinutes}}", "--faucet.tiers", "{{.FaucetTiers}}",             \
-	"--github.user", "{{.GitHubUser}}", "--github.token", "{{.GitHubToken}}", "--account.json", "/account.json", "--account.pass", "/account.pass"                       \
+	"--account.json", "/account.json", "--account.pass", "/account.pass"                                                                                                    \
-	{{if .CaptchaToken}}, "--captcha.token", "{{.CaptchaToken}}", "--captcha.secret", "{{.CaptchaSecret}}"{{end}}                                                        \
+	{{if .CaptchaToken}}, "--captcha.token", "{{.CaptchaToken}}", "--captcha.secret", "{{.CaptchaSecret}}"{{end}}{{if .NoAuth}}, "--noauth"{{end}}                          \
 ]`
 
 // faucetComposefile is the docker-compose.yml file required to deploy and maintain
@@ -76,10 +65,9 @@ services:
       - FAUCET_AMOUNT={{.FaucetAmount}}
       - FAUCET_MINUTES={{.FaucetMinutes}}
       - FAUCET_TIERS={{.FaucetTiers}}
-      - GITHUB_USER={{.GitHubUser}}
-      - GITHUB_TOKEN={{.GitHubToken}}
       - CAPTCHA_TOKEN={{.CaptchaToken}}
-      - CAPTCHA_SECRET={{.CaptchaSecret}}{{if .VHost}}
+      - CAPTCHA_SECRET={{.CaptchaSecret}}
+      - NO_AUTH={{.NoAuth}}{{if .VHost}}
       - VIRTUAL_HOST={{.VHost}}
       - VIRTUAL_PORT=8080{{end}}
     logging:
@@ -93,7 +81,7 @@ services:
 // deployFaucet deploys a new faucet container to a remote machine via SSH,
 // docker and docker-compose. If an instance with the specified network name
 // already exists there, it will be overwritten!
-func deployFaucet(client *sshClient, network string, bootnodes []string, config *faucetInfos) ([]byte, error) {
+func deployFaucet(client *sshClient, network string, bootnodes []string, config *faucetInfos, nocache bool) ([]byte, error) {
 	// Generate the content to upload to the server
 	workdir := fmt.Sprintf("%d", rand.Int63())
 	files := make(map[string][]byte)
@@ -104,14 +92,13 @@ func deployFaucet(client *sshClient, network string, bootnodes []string, config
 		"Bootnodes":     strings.Join(bootnodes, ","),
 		"Ethstats":      config.node.ethstats,
 		"EthPort":       config.node.portFull,
-		"GitHubUser":    config.githubUser,
-		"GitHubToken":   config.githubToken,
 		"CaptchaToken":  config.captchaToken,
 		"CaptchaSecret": config.captchaSecret,
 		"FaucetName":    strings.Title(network),
 		"FaucetAmount":  config.amount,
 		"FaucetMinutes": config.minutes,
 		"FaucetTiers":   config.tiers,
+		"NoAuth":        config.noauth,
 	})
 	files[filepath.Join(workdir, "Dockerfile")] = dockerfile.Bytes()
 
@@ -123,17 +110,16 @@ func deployFaucet(client *sshClient, network string, bootnodes []string, config
 		"ApiPort":       config.port,
 		"EthPort":       config.node.portFull,
 		"EthName":       config.node.ethstats[:strings.Index(config.node.ethstats, ":")],
-		"GitHubUser":    config.githubUser,
-		"GitHubToken":   config.githubToken,
 		"CaptchaToken":  config.captchaToken,
 		"CaptchaSecret": config.captchaSecret,
 		"FaucetAmount":  config.amount,
 		"FaucetMinutes": config.minutes,
 		"FaucetTiers":   config.tiers,
+		"NoAuth":        config.noauth,
 	})
 	files[filepath.Join(workdir, "docker-compose.yaml")] = composefile.Bytes()
 
-	files[filepath.Join(workdir, "genesis.json")] = []byte(config.node.genesis)
+	files[filepath.Join(workdir, "genesis.json")] = config.node.genesis
 	files[filepath.Join(workdir, "account.json")] = []byte(config.node.keyJSON)
 	files[filepath.Join(workdir, "account.pass")] = []byte(config.node.keyPass)
 
@@ -144,7 +130,10 @@ func deployFaucet(client *sshClient, network string, bootnodes []string, config
 	defer client.Run("rm -rf " + workdir)
 
 	// Build and deploy the faucet service
-	return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s up -d --build", workdir, network))
+	if nocache {
+		return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s build --pull --no-cache && docker-compose -p %s up -d --force-recreate", workdir, network, network))
+	}
+	return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s up -d --build --force-recreate", workdir, network))
 }
 
 // faucetInfos is returned from an faucet status check to allow reporting various
@@ -156,15 +145,38 @@ type faucetInfos struct {
 	amount        int
 	minutes       int
 	tiers         int
-	githubUser    string
+	noauth        bool
-	githubToken   string
 	captchaToken  string
 	captchaSecret string
 }
 
-// String implements the stringer interface.
+// Report converts the typed struct into a plain string->string map, containing
-func (info *faucetInfos) String() string {
+// most - but not all - fields for reporting to the user.
-	return fmt.Sprintf("host=%s, api=%d, eth=%d, amount=%d, minutes=%d, tiers=%d, github=%s, captcha=%v, ethstats=%s", info.host, info.port, info.node.portFull, info.amount, info.minutes, info.tiers, info.githubUser, info.captchaToken != "", info.node.ethstats)
+func (info *faucetInfos) Report() map[string]string {
+	report := map[string]string{
+		"Website address":              info.host,
+		"Website listener port":        strconv.Itoa(info.port),
+		"Ethereum listener port":       strconv.Itoa(info.node.portFull),
+		"Funding amount (base tier)":   fmt.Sprintf("%d Ethers", info.amount),
+		"Funding cooldown (base tier)": fmt.Sprintf("%d mins", info.minutes),
+		"Funding tiers":                strconv.Itoa(info.tiers),
+		"Captha protection":            fmt.Sprintf("%v", info.captchaToken != ""),
+		"Ethstats username":            info.node.ethstats,
+	}
+	if info.noauth {
+		report["Debug mode (no auth)"] = "enabled"
+	}
+	if info.node.keyJSON != "" {
+		var key struct {
+			Address string `json:"address"`
+		}
+		if err := json.Unmarshal([]byte(info.node.keyJSON), &key); err == nil {
+			report["Funding account"] = common.HexToAddress(key.Address).Hex()
+		} else {
+			log.Error("Failed to retrieve signer address", "err", err)
+		}
+	}
+	return report
 }
 
 // checkFaucet does a health-check against an faucet server to verify whether
@@ -224,9 +236,8 @@ func checkFaucet(client *sshClient, network string) (*faucetInfos, error) {
 		amount:        amount,
 		minutes:       minutes,
 		tiers:         tiers,
-		githubUser:    infos.envvars["GITHUB_USER"],
-		githubToken:   infos.envvars["GITHUB_TOKEN"],
 		captchaToken:  infos.envvars["CAPTCHA_TOKEN"],
 		captchaSecret: infos.envvars["CAPTCHA_SECRET"],
+		noauth:        infos.envvars["NO_AUTH"] == "true",
 	}, nil
 }

cmd/puppeth/module_nginx.go

@@ -22,6 +22,7 @@ import (
 	"html/template"
 	"math/rand"
 	"path/filepath"
+	"strconv"
 
 	"github.com/ethereum/go-ethereum/log"
 )
@@ -54,7 +55,7 @@ services:
 // deployNginx deploys a new nginx reverse-proxy container to expose one or more
 // HTTP services running on a single host. If an instance with the specified
 // network name already exists there, it will be overwritten!
-func deployNginx(client *sshClient, network string, port int) ([]byte, error) {
+func deployNginx(client *sshClient, network string, port int, nocache bool) ([]byte, error) {
 	log.Info("Deploying nginx reverse-proxy", "server", client.server, "port", port)
 
 	// Generate the content to upload to the server
@@ -78,8 +79,11 @@ func deployNginx(client *sshClient, network string, port int) ([]byte, error) {
 	}
 	defer client.Run("rm -rf " + workdir)
 
-	// Build and deploy the ethstats service
+	// Build and deploy the reverse-proxy service
-	return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s up -d --build", workdir, network))
+	if nocache {
+		return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s build --pull --no-cache && docker-compose -p %s up -d --force-recreate", workdir, network, network))
+	}
+	return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s up -d --build --force-recreate", workdir, network))
 }
 
 // nginxInfos is returned from an nginx reverse-proxy status check to allow
@@ -88,9 +92,12 @@ type nginxInfos struct {
 	port int
 }
 
-// String implements the stringer interface.
+// Report converts the typed struct into a plain string->string map, containing
-func (info *nginxInfos) String() string {
+// most - but not all - fields for reporting to the user.
-	return fmt.Sprintf("port=%d", info.port)
+func (info *nginxInfos) Report() map[string]string {
+	return map[string]string{
+		"Shared listener port": strconv.Itoa(info.port),
+	}
 }
 
 // checkNginx does a health-check against an nginx reverse-proxy to verify whether

cmd/puppeth/module_node.go

@@ -18,6 +18,7 @@ package main
 
 import (
 	"bytes"
+	"encoding/json"
 	"fmt"
 	"math/rand"
 	"path/filepath"
@@ -25,6 +26,7 @@ import (
 	"strings"
 	"text/template"
 
+	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/log"
 )
 
@@ -38,9 +40,9 @@ ADD genesis.json /genesis.json
 	ADD signer.pass /signer.pass
 {{end}}
 RUN \
-  echo 'geth init /genesis.json' > geth.sh && \{{if .Unlock}}
+  echo 'geth --cache 512 init /genesis.json' > geth.sh && \{{if .Unlock}}
 	echo 'mkdir -p /root/.ethereum/keystore/ && cp /signer.json /root/.ethereum/keystore/' >> geth.sh && \{{end}}
-	echo $'geth --networkid {{.NetworkID}} --cache 512 --port {{.Port}} --maxpeers {{.Peers}} {{.LightFlag}} --ethstats \'{{.Ethstats}}\' {{if .BootV4}}--bootnodesv4 {{.BootV4}}{{end}} {{if .BootV5}}--bootnodesv5 {{.BootV5}}{{end}} {{if .Etherbase}}--etherbase {{.Etherbase}} --mine{{end}}{{if .Unlock}}--unlock 0 --password /signer.pass --mine{{end}} --targetgaslimit {{.GasTarget}} --gasprice {{.GasPrice}}' >> geth.sh
+	echo $'geth --networkid {{.NetworkID}} --cache 512 --port {{.Port}} --maxpeers {{.Peers}} {{.LightFlag}} --ethstats \'{{.Ethstats}}\' {{if .BootV4}}--bootnodesv4 {{.BootV4}}{{end}} {{if .BootV5}}--bootnodesv5 {{.BootV5}}{{end}} {{if .Etherbase}}--etherbase {{.Etherbase}} --mine --minerthreads 1{{end}} {{if .Unlock}}--unlock 0 --password /signer.pass --mine{{end}} --targetgaslimit {{.GasTarget}} --gasprice {{.GasPrice}}' >> geth.sh
 
 ENTRYPOINT ["/bin/sh", "geth.sh"]
 `
@@ -58,7 +60,8 @@ services:
       - "{{.FullPort}}:{{.FullPort}}/udp"{{if .Light}}
       - "{{.LightPort}}:{{.LightPort}}/udp"{{end}}
     volumes:
-      - {{.Datadir}}:/root/.ethereum
+      - {{.Datadir}}:/root/.ethereum{{if .Ethashdir}}
+      - {{.Ethashdir}}:/root/.ethash{{end}}
     environment:
       - FULL_PORT={{.FullPort}}/tcp
       - LIGHT_PORT={{.LightPort}}/udp
@@ -79,7 +82,7 @@ services:
 // deployNode deploys a new Ethereum node container to a remote machine via SSH,
 // docker and docker-compose. If an instance with the specified network name
 // already exists there, it will be overwritten!
-func deployNode(client *sshClient, network string, bootv4, bootv5 []string, config *nodeInfos) ([]byte, error) {
+func deployNode(client *sshClient, network string, bootv4, bootv5 []string, config *nodeInfos, nocache bool) ([]byte, error) {
 	kind := "sealnode"
 	if config.keyJSON == "" && config.etherbase == "" {
 		kind = "bootnode"
@@ -114,6 +117,7 @@ func deployNode(client *sshClient, network string, bootv4, bootv5 []string, conf
 	template.Must(template.New("").Parse(nodeComposefile)).Execute(composefile, map[string]interface{}{
 		"Type":       kind,
 		"Datadir":    config.datadir,
+		"Ethashdir":  config.ethashdir,
 		"Network":    network,
 		"FullPort":   config.portFull,
 		"TotalPeers": config.peersTotal,
@@ -127,9 +131,7 @@ func deployNode(client *sshClient, network string, bootv4, bootv5 []string, conf
 	})
 	files[filepath.Join(workdir, "docker-compose.yaml")] = composefile.Bytes()
 
-	//genesisfile, _ := json.MarshalIndent(config.genesis, "", "  ")
+	files[filepath.Join(workdir, "genesis.json")] = config.genesis
-	files[filepath.Join(workdir, "genesis.json")] = []byte(config.genesis)
-
 	if config.keyJSON != "" {
 		files[filepath.Join(workdir, "signer.json")] = []byte(config.keyJSON)
 		files[filepath.Join(workdir, "signer.pass")] = []byte(config.keyPass)
@@ -141,7 +143,10 @@ func deployNode(client *sshClient, network string, bootv4, bootv5 []string, conf
 	defer client.Run("rm -rf " + workdir)
 
 	// Build and deploy the boot or seal node service
-	return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s up -d --build", workdir, network))
+	if nocache {
+		return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s build --pull --no-cache && docker-compose -p %s up -d --force-recreate", workdir, network, network))
+	}
+	return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s up -d --build --force-recreate", workdir, network))
 }
 
 // nodeInfos is returned from a boot or seal node status check to allow reporting
@@ -150,6 +155,7 @@ type nodeInfos struct {
 	genesis    []byte
 	network    int64
 	datadir    string
+	ethashdir  string
 	ethstats   string
 	portFull   int
 	portLight  int
@@ -164,14 +170,43 @@ type nodeInfos struct {
 	gasPrice   float64
 }
 
-// String implements the stringer interface.
+// Report converts the typed struct into a plain string->string map, containing
-func (info *nodeInfos) String() string {
+// most - but not all - fields for reporting to the user.
-	discv5 := ""
+func (info *nodeInfos) Report() map[string]string {
-	if info.peersLight > 0 {
+	report := map[string]string{
-		discv5 = fmt.Sprintf(", portv5=%d", info.portLight)
+		"Data directory":             info.datadir,
+		"Listener port (full nodes)": strconv.Itoa(info.portFull),
+		"Peer count (all total)":     strconv.Itoa(info.peersTotal),
+		"Peer count (light nodes)":   strconv.Itoa(info.peersLight),
+		"Ethstats username":          info.ethstats,
 	}
-	return fmt.Sprintf("port=%d%s, datadir=%s, peers=%d, lights=%d, ethstats=%s, gastarget=%0.3f MGas, gasprice=%0.3f GWei",
+	if info.peersLight > 0 {
-		info.portFull, discv5, info.datadir, info.peersTotal, info.peersLight, info.ethstats, info.gasTarget, info.gasPrice)
+		// Light server enabled
+		report["Listener port (light nodes)"] = strconv.Itoa(info.portLight)
+	}
+	if info.gasTarget > 0 {
+		// Miner or signer node
+		report["Gas limit (baseline target)"] = fmt.Sprintf("%0.3f MGas", info.gasTarget)
+		report["Gas price (minimum accepted)"] = fmt.Sprintf("%0.3f GWei", info.gasPrice)
+
+		if info.etherbase != "" {
+			// Ethash proof-of-work miner
+			report["Ethash directory"] = info.ethashdir
+			report["Miner account"] = info.etherbase
+		}
+		if info.keyJSON != "" {
+			// Clique proof-of-authority signer
+			var key struct {
+				Address string `json:"address"`
+			}
+			if err := json.Unmarshal([]byte(info.keyJSON), &key); err == nil {
+				report["Signer account"] = common.HexToAddress(key.Address).Hex()
+			} else {
+				log.Error("Failed to retrieve signer address", "err", err)
+			}
+		}
+	}
+	return report
 }
 
 // checkNode does a health-check against an boot or seal node server to verify
@@ -223,6 +258,7 @@ func checkNode(client *sshClient, network string, boot bool) (*nodeInfos, error)
 	stats := &nodeInfos{
 		genesis:    genesis,
 		datadir:    infos.volumes["/root/.ethereum"],
+		ethashdir:  infos.volumes["/root/.ethash"],
 		portFull:   infos.portmap[infos.envvars["FULL_PORT"]],
 		portLight:  infos.portmap[infos.envvars["LIGHT_PORT"]],
 		peersTotal: totalPeers,

cmd/puppeth/module_wallet.go

@@ -0,0 +1,200 @@
+// Copyright 2017 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 <http://www.gnu.org/licenses/>.
+
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"html/template"
+	"math/rand"
+	"path/filepath"
+	"strconv"
+	"strings"
+
+	"github.com/ethereum/go-ethereum/log"
+)
+
+// walletDockerfile is the Dockerfile required to run a web wallet.
+var walletDockerfile = `
+FROM puppeth/wallet:latest
+
+ADD genesis.json /genesis.json
+
+RUN \
+  echo 'node server.js &'                     > wallet.sh && \
+	echo 'geth --cache 512 init /genesis.json' >> wallet.sh && \
+	echo $'geth --networkid {{.NetworkID}} --port {{.NodePort}} --bootnodes {{.Bootnodes}} --ethstats \'{{.Ethstats}}\' --cache=512 --rpc --rpcaddr=0.0.0.0 --rpccorsdomain "*"' >> wallet.sh
+
+RUN \
+	sed -i 's/PuppethNetworkID/{{.NetworkID}}/g' dist/js/etherwallet-master.js && \
+	sed -i 's/PuppethNetwork/{{.Network}}/g'     dist/js/etherwallet-master.js && \
+	sed -i 's/PuppethDenom/{{.Denom}}/g'         dist/js/etherwallet-master.js && \
+	sed -i 's/PuppethHost/{{.Host}}/g'           dist/js/etherwallet-master.js && \
+	sed -i 's/PuppethRPCPort/{{.RPCPort}}/g'     dist/js/etherwallet-master.js
+
+ENTRYPOINT ["/bin/sh", "wallet.sh"]
+`
+
+// walletComposefile is the docker-compose.yml file required to deploy and
+// maintain a web wallet.
+var walletComposefile = `
+version: '2'
+services:
+  wallet:
+    build: .
+    image: {{.Network}}/wallet
+    ports:
+      - "{{.NodePort}}:{{.NodePort}}"
+      - "{{.NodePort}}:{{.NodePort}}/udp"
+      - "{{.RPCPort}}:8545"{{if not .VHost}}
+      - "{{.WebPort}}:80"{{end}}
+    volumes:
+      - {{.Datadir}}:/root/.ethereum
+    environment:
+      - NODE_PORT={{.NodePort}}/tcp
+      - STATS={{.Ethstats}}{{if .VHost}}
+      - VIRTUAL_HOST={{.VHost}}
+      - VIRTUAL_PORT=80{{end}}
+    logging:
+      driver: "json-file"
+      options:
+        max-size: "1m"
+        max-file: "10"
+    restart: always
+`
+
+// deployWallet deploys a new web wallet container to a remote machine via SSH,
+// docker and docker-compose. If an instance with the specified network name
+// already exists there, it will be overwritten!
+func deployWallet(client *sshClient, network string, bootnodes []string, config *walletInfos, nocache bool) ([]byte, error) {
+	// Generate the content to upload to the server
+	workdir := fmt.Sprintf("%d", rand.Int63())
+	files := make(map[string][]byte)
+
+	dockerfile := new(bytes.Buffer)
+	template.Must(template.New("").Parse(walletDockerfile)).Execute(dockerfile, map[string]interface{}{
+		"Network":   strings.ToTitle(network),
+		"Denom":     strings.ToUpper(network),
+		"NetworkID": config.network,
+		"NodePort":  config.nodePort,
+		"RPCPort":   config.rpcPort,
+		"Bootnodes": strings.Join(bootnodes, ","),
+		"Ethstats":  config.ethstats,
+		"Host":      client.address,
+	})
+	files[filepath.Join(workdir, "Dockerfile")] = dockerfile.Bytes()
+
+	composefile := new(bytes.Buffer)
+	template.Must(template.New("").Parse(walletComposefile)).Execute(composefile, map[string]interface{}{
+		"Datadir":  config.datadir,
+		"Network":  network,
+		"NodePort": config.nodePort,
+		"RPCPort":  config.rpcPort,
+		"VHost":    config.webHost,
+		"WebPort":  config.webPort,
+		"Ethstats": config.ethstats[:strings.Index(config.ethstats, ":")],
+	})
+	files[filepath.Join(workdir, "docker-compose.yaml")] = composefile.Bytes()
+
+	files[filepath.Join(workdir, "genesis.json")] = config.genesis
+
+	// Upload the deployment files to the remote server (and clean up afterwards)
+	if out, err := client.Upload(files); err != nil {
+		return out, err
+	}
+	defer client.Run("rm -rf " + workdir)
+
+	// Build and deploy the boot or seal node service
+	if nocache {
+		return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s build --pull --no-cache && docker-compose -p %s up -d --force-recreate", workdir, network, network))
+	}
+	return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s up -d --build --force-recreate", workdir, network))
+}
+
+// walletInfos is returned from a web wallet status check to allow reporting
+// various configuration parameters.
+type walletInfos struct {
+	genesis  []byte
+	network  int64
+	datadir  string
+	ethstats string
+	nodePort int
+	rpcPort  int
+	webHost  string
+	webPort  int
+}
+
+// Report converts the typed struct into a plain string->string map, containing
+// most - but not all - fields for reporting to the user.
+func (info *walletInfos) Report() map[string]string {
+	report := map[string]string{
+		"Data directory":         info.datadir,
+		"Ethstats username":      info.ethstats,
+		"Node listener port ":    strconv.Itoa(info.nodePort),
+		"RPC listener port ":     strconv.Itoa(info.rpcPort),
+		"Website address ":       info.webHost,
+		"Website listener port ": strconv.Itoa(info.webPort),
+	}
+	return report
+}
+
+// checkWallet does a health-check against web wallet server to verify whether
+// it's running, and if yes, whether it's responsive.
+func checkWallet(client *sshClient, network string) (*walletInfos, error) {
+	// Inspect a possible web wallet container on the host
+	infos, err := inspectContainer(client, fmt.Sprintf("%s_wallet_1", network))
+	if err != nil {
+		return nil, err
+	}
+	if !infos.running {
+		return nil, ErrServiceOffline
+	}
+	// Resolve the port from the host, or the reverse proxy
+	webPort := infos.portmap["80/tcp"]
+	if webPort == 0 {
+		if proxy, _ := checkNginx(client, network); proxy != nil {
+			webPort = proxy.port
+		}
+	}
+	if webPort == 0 {
+		return nil, ErrNotExposed
+	}
+	// Resolve the host from the reverse-proxy and the config values
+	host := infos.envvars["VIRTUAL_HOST"]
+	if host == "" {
+		host = client.server
+	}
+	// Run a sanity check to see if the devp2p and RPC ports are reachable
+	nodePort := infos.portmap[infos.envvars["NODE_PORT"]]
+	if err = checkPort(client.server, nodePort); err != nil {
+		log.Warn(fmt.Sprintf("Wallet devp2p port seems unreachable"), "server", client.server, "port", nodePort, "err", err)
+	}
+	rpcPort := infos.portmap["8545/tcp"]
+	if err = checkPort(client.server, rpcPort); err != nil {
+		log.Warn(fmt.Sprintf("Wallet RPC port seems unreachable"), "server", client.server, "port", rpcPort, "err", err)
+	}
+	// Assemble and return the useful infos
+	stats := &walletInfos{
+		datadir:  infos.volumes["/root/.ethereum"],
+		nodePort: nodePort,
+		rpcPort:  rpcPort,
+		webHost:  host,
+		webPort:  webPort,
+		ethstats: infos.envvars["STATS"],
+	}
+	return stats, nil
+}

cmd/puppeth/puppeth.go

@@ -38,7 +38,7 @@ func main() {
 		},
 		cli.IntFlag{
 			Name:  "loglevel",
-			Value: 4,
+			Value: 3,
 			Usage: "log level to emit to the screen",
 		},
 	}

cmd/puppeth/ssh.go

@@ -27,7 +27,6 @@ import (
 	"os/user"
 	"path/filepath"
 	"strings"
-	"syscall"
 
 	"github.com/ethereum/go-ethereum/log"
 	"golang.org/x/crypto/ssh"
@@ -78,14 +77,25 @@ func dial(server string, pubkey []byte) (*sshClient, error) {
 	} else {
 		key, err := ssh.ParsePrivateKey(buf)
 		if err != nil {
-			log.Warn("Bad SSH key, falling back to passwords", "path", path, "err", err)
+			fmt.Printf("What's the decryption password for %s? (won't be echoed)\n>", path)
+			blob, err := terminal.ReadPassword(int(os.Stdin.Fd()))
+			fmt.Println()
+			if err != nil {
+				log.Warn("Couldn't read password", "err", err)
+			}
+			key, err := ssh.ParsePrivateKeyWithPassphrase(buf, blob)
+			if err != nil {
+				log.Warn("Failed to decrypt SSH key, falling back to passwords", "path", path, "err", err)
+			} else {
+				auths = append(auths, ssh.PublicKeys(key))
+			}
 		} else {
 			auths = append(auths, ssh.PublicKeys(key))
 		}
 	}
 	auths = append(auths, ssh.PasswordCallback(func() (string, error) {
 		fmt.Printf("What's the login password for %s at %s? (won't be echoed)\n> ", login, server)
-		blob, err := terminal.ReadPassword(int(syscall.Stdin))
+		blob, err := terminal.ReadPassword(int(os.Stdin.Fd()))
 
 		fmt.Println()
 		return string(blob), err
@@ -106,6 +116,7 @@ func dial(server string, pubkey []byte) (*sshClient, error) {
 	keycheck := func(hostname string, remote net.Addr, key ssh.PublicKey) error {
 		// If no public key is known for SSH, ask the user to confirm
 		if pubkey == nil {
+			fmt.Println()
 			fmt.Printf("The authenticity of host '%s (%s)' can't be established.\n", hostname, remote)
 			fmt.Printf("SSH key fingerprint is %s [MD5]\n", ssh.FingerprintLegacyMD5(key))
 			fmt.Printf("Are you sure you want to continue connecting (yes/no)? ")
@@ -205,8 +216,8 @@ func (client *sshClient) Stream(cmd string) error {
 	return session.Run(cmd)
 }
 
-// Upload copied the set of files to a remote server via SCP, creating any non-
+// Upload copies the set of files to a remote server via SCP, creating any non-
-// existing folder in te mean time.
+// existing folders in the mean time.
 func (client *sshClient) Upload(files map[string][]byte) ([]byte, error) {
 	// Establish a single command session
 	session, err := client.client.NewSession()

cmd/puppeth/wizard.go

@@ -28,7 +28,7 @@ import (
 	"sort"
 	"strconv"
 	"strings"
-	"syscall"
+	"sync"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core"
@@ -40,11 +40,11 @@ import (
 // between sessions.
 type config struct {
 	path      string   // File containing the configuration values
-	genesis   *core.Genesis // Genesis block to cache for node deploys
 	bootFull  []string // Bootnodes to always connect to by full nodes
 	bootLight []string // Bootnodes to always connect to by light nodes
 	ethstats  string   // Ethstats settings to cache for node deploys
 
+	Genesis *core.Genesis     `json:"genesis,omitempty"` // Genesis block to cache for node deploys
 	Servers map[string][]byte `json:"servers,omitempty"`
 }
 
@@ -77,6 +77,7 @@ type wizard struct {
 	services map[string][]string   // Ethereum services known to be running on servers
 
 	in   *bufio.Reader // Wrapper around stdin to allow reading user input
+	lock sync.Mutex    // Lock to protect configs during concurrent service discovery
 }
 
 // read reads a single line from stdin, trimming if from spaces.
@@ -231,7 +232,7 @@ func (w *wizard) readDefaultFloat(def float64) float64 {
 // line and returns it. The input will not be echoed.
 func (w *wizard) readPassword() string {
 	fmt.Printf("> ")
-	text, err := terminal.ReadPassword(int(syscall.Stdin))
+	text, err := terminal.ReadPassword(int(os.Stdin.Fd()))
 	if err != nil {
 		log.Crit("Failed to read password", "err", err)
 	}

cmd/puppeth/wizard_dashboard.go

@@ -40,6 +40,8 @@ func (w *wizard) deployDashboard() {
 			host: client.server,
 		}
 	}
+	existed := err == nil
+
 	// Figure out which port to listen on
 	fmt.Println()
 	fmt.Printf("Which port should the dashboard listen on? (default = %d)\n", infos.port)
@@ -58,7 +60,6 @@ func (w *wizard) deployDashboard() {
 			available[service] = append(available[service], server)
 		}
 	}
-	listing := make(map[string]string)
 	for _, service := range []string{"ethstats", "explorer", "wallet", "faucet"} {
 		// Gather all the locally hosted pages of this type
 		var pages []string
@@ -74,6 +75,14 @@ func (w *wizard) deployDashboard() {
 				if infos, err := checkEthstats(client, w.network); err == nil {
 					port = infos.port
 				}
+			case "explorer":
+				if infos, err := checkExplorer(client, w.network); err == nil {
+					port = infos.webPort
+				}
+			case "wallet":
+				if infos, err := checkWallet(client, w.network); err == nil {
+					port = infos.webPort
+				}
 			case "faucet":
 				if infos, err := checkFaucet(client, w.network); err == nil {
 					port = infos.port
@@ -101,26 +110,43 @@ func (w *wizard) deployDashboard() {
 			log.Error("Invalid listing choice, aborting")
 			return
 		}
+		var page string
 		switch {
 		case choice <= len(pages):
-			listing[service] = pages[choice-1]
+			page = pages[choice-1]
 		case choice == len(pages)+1:
 			fmt.Println()
 			fmt.Printf("Which address is the external %s service at?\n", service)
-			listing[service] = w.readString()
+			page = w.readString()
 		default:
 			// No service hosting for this
 		}
+		// Save the users choice
+		switch service {
+		case "ethstats":
+			infos.ethstats = page
+		case "explorer":
+			infos.explorer = page
+		case "wallet":
+			infos.wallet = page
+		case "faucet":
+			infos.faucet = page
+		}
 	}
 	// If we have ethstats running, ask whether to make the secret public or not
-	var ethstats bool
 	if w.conf.ethstats != "" {
 		fmt.Println()
 		fmt.Println("Include ethstats secret on dashboard (y/n)? (default = yes)")
-		ethstats = w.readDefaultString("y") == "y"
+		infos.trusted = w.readDefaultString("y") == "y"
 	}
 	// Try to deploy the dashboard container on the host
-	if out, err := deployDashboard(client, w.network, infos.port, infos.host, listing, &w.conf, ethstats); err != nil {
+	nocache := false
+	if existed {
+		fmt.Println()
+		fmt.Printf("Should the dashboard be built from scratch (y/n)? (default = no)\n")
+		nocache = w.readDefaultString("n") != "n"
+	}
+	if out, err := deployDashboard(client, w.network, &w.conf, infos, nocache); err != nil {
 		log.Error("Failed to deploy dashboard container", "err", err)
 		if len(out) > 0 {
 			fmt.Printf("%s\n", out)
@@ -128,5 +154,5 @@ func (w *wizard) deployDashboard() {
 		return
 	}
 	// All ok, run a network scan to pick any changes up
-	w.networkStats(false)
+	w.networkStats()
 }

cmd/puppeth/wizard_ethstats.go

@@ -42,6 +42,8 @@ func (w *wizard) deployEthstats() {
 			secret: "",
 		}
 	}
+	existed := err == nil
+
 	// Figure out which port to listen on
 	fmt.Println()
 	fmt.Printf("Which port should ethstats listen on? (default = %d)\n", infos.port)
@@ -62,6 +64,7 @@ func (w *wizard) deployEthstats() {
 		infos.secret = w.readDefaultString(infos.secret)
 	}
 	// Gather any blacklists to ban from reporting
+	if existed {
 		fmt.Println()
 		fmt.Printf("Keep existing IP %v blacklist (y/n)? (default = yes)\n", infos.banned)
 		if w.readDefaultString("y") != "y" {
@@ -97,14 +100,21 @@ func (w *wizard) deployEthstats() {
 			}
 			sort.Strings(infos.banned)
 		}
+	}
 	// Try to deploy the ethstats server on the host
+	nocache := false
+	if existed {
+		fmt.Println()
+		fmt.Printf("Should the ethstats be built from scratch (y/n)? (default = no)\n")
+		nocache = w.readDefaultString("n") != "n"
+	}
 	trusted := make([]string, 0, len(w.servers))
 	for _, client := range w.servers {
 		if client != nil {
 			trusted = append(trusted, client.address)
 		}
 	}
-	if out, err := deployEthstats(client, w.network, infos.port, infos.secret, infos.host, trusted, infos.banned); err != nil {
+	if out, err := deployEthstats(client, w.network, infos.port, infos.secret, infos.host, trusted, infos.banned, nocache); err != nil {
 		log.Error("Failed to deploy ethstats container", "err", err)
 		if len(out) > 0 {
 			fmt.Printf("%s\n", out)
@@ -112,5 +122,5 @@ func (w *wizard) deployEthstats() {
 		return
 	}
 	// All ok, run a network scan to pick any changes up
-	w.networkStats(false)
+	w.networkStats()
 }

cmd/puppeth/wizard_explorer.go

@@ -0,0 +1,117 @@
+// Copyright 2017 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 <http://www.gnu.org/licenses/>.
+
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"time"
+
+	"github.com/ethereum/go-ethereum/log"
+)
+
+// deployExplorer creates a new block explorer based on some user input.
+func (w *wizard) deployExplorer() {
+	// Do some sanity check before the user wastes time on input
+	if w.conf.Genesis == nil {
+		log.Error("No genesis block configured")
+		return
+	}
+	if w.conf.ethstats == "" {
+		log.Error("No ethstats server configured")
+		return
+	}
+	if w.conf.Genesis.Config.Ethash == nil {
+		log.Error("Only ethash network supported")
+		return
+	}
+	// Select the server to interact with
+	server := w.selectServer()
+	if server == "" {
+		return
+	}
+	client := w.servers[server]
+
+	// Retrieve any active node configurations from the server
+	infos, err := checkExplorer(client, w.network)
+	if err != nil {
+		infos = &explorerInfos{
+			nodePort: 30303, webPort: 80, webHost: client.server,
+		}
+	}
+	existed := err == nil
+
+	chainspec, err := newParityChainSpec(w.network, w.conf.Genesis, w.conf.bootFull)
+	if err != nil {
+		log.Error("Failed to create chain spec for explorer", "err", err)
+		return
+	}
+	chain, _ := json.MarshalIndent(chainspec, "", "  ")
+
+	// Figure out which port to listen on
+	fmt.Println()
+	fmt.Printf("Which port should the explorer listen on? (default = %d)\n", infos.webPort)
+	infos.webPort = w.readDefaultInt(infos.webPort)
+
+	// Figure which virtual-host to deploy ethstats on
+	if infos.webHost, err = w.ensureVirtualHost(client, infos.webPort, infos.webHost); err != nil {
+		log.Error("Failed to decide on explorer host", "err", err)
+		return
+	}
+	// Figure out where the user wants to store the persistent data
+	fmt.Println()
+	if infos.datadir == "" {
+		fmt.Printf("Where should data be stored on the remote machine?\n")
+		infos.datadir = w.readString()
+	} else {
+		fmt.Printf("Where should data be stored on the remote machine? (default = %s)\n", infos.datadir)
+		infos.datadir = w.readDefaultString(infos.datadir)
+	}
+	// Figure out which port to listen on
+	fmt.Println()
+	fmt.Printf("Which TCP/UDP port should the archive node listen on? (default = %d)\n", infos.nodePort)
+	infos.nodePort = w.readDefaultInt(infos.nodePort)
+
+	// Set a proper name to report on the stats page
+	fmt.Println()
+	if infos.ethstats == "" {
+		fmt.Printf("What should the explorer be called on the stats page?\n")
+		infos.ethstats = w.readString() + ":" + w.conf.ethstats
+	} else {
+		fmt.Printf("What should the explorer be called on the stats page? (default = %s)\n", infos.ethstats)
+		infos.ethstats = w.readDefaultString(infos.ethstats) + ":" + w.conf.ethstats
+	}
+	// Try to deploy the explorer on the host
+	nocache := false
+	if existed {
+		fmt.Println()
+		fmt.Printf("Should the explorer be built from scratch (y/n)? (default = no)\n")
+		nocache = w.readDefaultString("n") != "n"
+	}
+	if out, err := deployExplorer(client, w.network, chain, infos, nocache); err != nil {
+		log.Error("Failed to deploy explorer container", "err", err)
+		if len(out) > 0 {
+			fmt.Printf("%s\n", out)
+		}
+		return
+	}
+	// All ok, run a network scan to pick any changes up
+	log.Info("Waiting for node to finish booting")
+	time.Sleep(3 * time.Second)
+
+	w.networkStats()
+}

cmd/puppeth/wizard_faucet.go

@@ -19,7 +19,6 @@ package main
 import (
 	"encoding/json"
 	"fmt"
-	"net/http"
 
 	"github.com/ethereum/go-ethereum/accounts/keystore"
 	"github.com/ethereum/go-ethereum/log"
@@ -47,8 +46,10 @@ func (w *wizard) deployFaucet() {
 			tiers:   3,
 		}
 	}
-	infos.node.genesis, _ = json.MarshalIndent(w.conf.genesis, "", "  ")
+	existed := err == nil
-	infos.node.network = w.conf.genesis.Config.ChainId.Int64()
+
+	infos.node.genesis, _ = json.MarshalIndent(w.conf.Genesis, "", "  ")
+	infos.node.network = w.conf.Genesis.Config.ChainId.Int64()
 
 	// Figure out which port to listen on
 	fmt.Println()
@@ -60,7 +61,7 @@ func (w *wizard) deployFaucet() {
 		log.Error("Failed to decide on faucet host", "err", err)
 		return
 	}
-	// Port and proxy settings retrieved, figure out the funcing amount per perdion configurations
+	// Port and proxy settings retrieved, figure out the funding amount per period configurations
 	fmt.Println()
 	fmt.Printf("How many Ethers to release per request? (default = %d)\n", infos.amount)
 	infos.amount = w.readDefaultInt(infos.amount)
@@ -76,47 +77,6 @@ func (w *wizard) deployFaucet() {
 		log.Error("At least one funding tier must be set")
 		return
 	}
-	// Accessing GitHub gists requires API authorization, retrieve it
-	if infos.githubUser != "" {
-		fmt.Println()
-		fmt.Printf("Reuse previous (%s) GitHub API authorization (y/n)? (default = yes)\n", infos.githubUser)
-		if w.readDefaultString("y") != "y" {
-			infos.githubUser, infos.githubToken = "", ""
-		}
-	}
-	if infos.githubUser == "" {
-		// No previous authorization (or new one requested)
-		fmt.Println()
-		fmt.Println("Which GitHub user to verify Gists through?")
-		infos.githubUser = w.readString()
-
-		fmt.Println()
-		fmt.Println("What is the GitHub personal access token of the user? (won't be echoed)")
-		infos.githubToken = w.readPassword()
-
-		// Do a sanity check query against github to ensure it's valid
-		req, _ := http.NewRequest("GET", "https://api.github.com/user", nil)
-		req.SetBasicAuth(infos.githubUser, infos.githubToken)
-		res, err := http.DefaultClient.Do(req)
-		if err != nil {
-			log.Error("Failed to verify GitHub authentication", "err", err)
-			return
-		}
-		defer res.Body.Close()
-
-		var msg struct {
-			Login   string `json:"login"`
-			Message string `json:"message"`
-		}
-		if err = json.NewDecoder(res.Body).Decode(&msg); err != nil {
-			log.Error("Failed to decode authorization response", "err", err)
-			return
-		}
-		if msg.Login != infos.githubUser {
-			log.Error("GitHub authorization failed", "user", infos.githubUser, "message", msg.Message)
-			return
-		}
-	}
 	// Accessing the reCaptcha service requires API authorizations, request it
 	if infos.captchaToken != "" {
 		fmt.Println()
@@ -129,7 +89,9 @@ func (w *wizard) deployFaucet() {
 		// No previous authorization (or old one discarded)
 		fmt.Println()
 		fmt.Println("Enable reCaptcha protection against robots (y/n)? (default = no)")
-		if w.readDefaultString("n") == "y" {
+		if w.readDefaultString("n") == "n" {
+			log.Warn("Users will be able to requests funds via automated scripts")
+		} else {
 			// Captcha protection explicitly requested, read the site and secret keys
 			fmt.Println()
 			fmt.Printf("What is the reCaptcha site key to authenticate human users?\n")
@@ -175,7 +137,7 @@ func (w *wizard) deployFaucet() {
 			}
 		}
 	}
-	if infos.node.keyJSON == "" {
+	for i := 0; i < 3 && infos.node.keyJSON == ""; i++ {
 		fmt.Println()
 		fmt.Println("Please paste the faucet's funding account key JSON:")
 		infos.node.keyJSON = w.readJSON()
@@ -186,11 +148,27 @@ func (w *wizard) deployFaucet() {
 
 		if _, err := keystore.DecryptKey([]byte(infos.node.keyJSON), infos.node.keyPass); err != nil {
 			log.Error("Failed to decrypt key with given passphrase")
-			return
+			infos.node.keyJSON = ""
+			infos.node.keyPass = ""
 		}
 	}
+	// Check if the user wants to run the faucet in debug mode (noauth)
+	noauth := "n"
+	if infos.noauth {
+		noauth = "y"
+	}
+	fmt.Println()
+	fmt.Printf("Permit non-authenticated funding requests (y/n)? (default = %v)\n", infos.noauth)
+	infos.noauth = w.readDefaultString(noauth) != "n"
+
 	// Try to deploy the faucet server on the host
-	if out, err := deployFaucet(client, w.network, w.conf.bootLight, infos); err != nil {
+	nocache := false
+	if existed {
+		fmt.Println()
+		fmt.Printf("Should the faucet be built from scratch (y/n)? (default = no)\n")
+		nocache = w.readDefaultString("n") != "n"
+	}
+	if out, err := deployFaucet(client, w.network, w.conf.bootLight, infos, nocache); err != nil {
 		log.Error("Failed to deploy faucet container", "err", err)
 		if len(out) > 0 {
 			fmt.Printf("%s\n", out)
@@ -198,5 +176,5 @@ func (w *wizard) deployFaucet() {
 		return
 	}
 	// All ok, run a network scan to pick any changes up
-	w.networkStats(false)
+	w.networkStats()
 }

cmd/puppeth/wizard_genesis.go

@@ -37,7 +37,7 @@ func (w *wizard) makeGenesis() {
 	genesis := &core.Genesis{
 		Timestamp:  uint64(time.Now().Unix()),
 		GasLimit:   4700000,
-		Difficulty: big.NewInt(1048576),
+		Difficulty: big.NewInt(524288),
 		Alloc:      make(core.GenesisAlloc),
 		Config: &params.ChainConfig{
 			HomesteadBlock: big.NewInt(1),
@@ -118,24 +118,16 @@ func (w *wizard) makeGenesis() {
 	for i := int64(0); i < 256; i++ {
 		genesis.Alloc[common.BigToAddress(big.NewInt(i))] = core.GenesisAccount{Balance: big.NewInt(1)}
 	}
-	fmt.Println()
-
 	// Query the user for some custom extras
 	fmt.Println()
 	fmt.Println("Specify your chain/network ID if you want an explicit one (default = random)")
 	genesis.Config.ChainId = new(big.Int).SetUint64(uint64(w.readDefaultInt(rand.Intn(65536))))
 
-	fmt.Println()
-	fmt.Println("Anything fun to embed into the genesis block? (max 32 bytes)")
-
-	extra := w.read()
-	if len(extra) > 32 {
-		extra = extra[:32]
-	}
-	genesis.ExtraData = append([]byte(extra), genesis.ExtraData[len(extra):]...)
-
 	// All done, store the genesis and flush to disk
-	w.conf.genesis = genesis
+	log.Info("Configured new genesis block")
+
+	w.conf.Genesis = genesis
+	w.conf.flush()
 }
 
 // manageGenesis permits the modification of chain configuration parameters in
@@ -145,44 +137,56 @@ func (w *wizard) manageGenesis() {
 	fmt.Println()
 	fmt.Println(" 1. Modify existing fork rules")
 	fmt.Println(" 2. Export genesis configuration")
+	fmt.Println(" 3. Remove genesis configuration")
 
 	choice := w.read()
 	switch {
 	case choice == "1":
 		// Fork rule updating requested, iterate over each fork
 		fmt.Println()
-		fmt.Printf("Which block should Homestead come into effect? (default = %v)\n", w.conf.genesis.Config.HomesteadBlock)
+		fmt.Printf("Which block should Homestead come into effect? (default = %v)\n", w.conf.Genesis.Config.HomesteadBlock)
-		w.conf.genesis.Config.HomesteadBlock = w.readDefaultBigInt(w.conf.genesis.Config.HomesteadBlock)
+		w.conf.Genesis.Config.HomesteadBlock = w.readDefaultBigInt(w.conf.Genesis.Config.HomesteadBlock)
 
 		fmt.Println()
-		fmt.Printf("Which block should EIP150 come into effect? (default = %v)\n", w.conf.genesis.Config.EIP150Block)
+		fmt.Printf("Which block should EIP150 come into effect? (default = %v)\n", w.conf.Genesis.Config.EIP150Block)
-		w.conf.genesis.Config.EIP150Block = w.readDefaultBigInt(w.conf.genesis.Config.EIP150Block)
+		w.conf.Genesis.Config.EIP150Block = w.readDefaultBigInt(w.conf.Genesis.Config.EIP150Block)
 
 		fmt.Println()
-		fmt.Printf("Which block should EIP155 come into effect? (default = %v)\n", w.conf.genesis.Config.EIP155Block)
+		fmt.Printf("Which block should EIP155 come into effect? (default = %v)\n", w.conf.Genesis.Config.EIP155Block)
-		w.conf.genesis.Config.EIP155Block = w.readDefaultBigInt(w.conf.genesis.Config.EIP155Block)
+		w.conf.Genesis.Config.EIP155Block = w.readDefaultBigInt(w.conf.Genesis.Config.EIP155Block)
 
 		fmt.Println()
-		fmt.Printf("Which block should EIP158 come into effect? (default = %v)\n", w.conf.genesis.Config.EIP158Block)
+		fmt.Printf("Which block should EIP158 come into effect? (default = %v)\n", w.conf.Genesis.Config.EIP158Block)
-		w.conf.genesis.Config.EIP158Block = w.readDefaultBigInt(w.conf.genesis.Config.EIP158Block)
+		w.conf.Genesis.Config.EIP158Block = w.readDefaultBigInt(w.conf.Genesis.Config.EIP158Block)
 
 		fmt.Println()
-		fmt.Printf("Which block should Byzantium come into effect? (default = %v)\n", w.conf.genesis.Config.ByzantiumBlock)
+		fmt.Printf("Which block should Byzantium come into effect? (default = %v)\n", w.conf.Genesis.Config.ByzantiumBlock)
-		w.conf.genesis.Config.ByzantiumBlock = w.readDefaultBigInt(w.conf.genesis.Config.ByzantiumBlock)
+		w.conf.Genesis.Config.ByzantiumBlock = w.readDefaultBigInt(w.conf.Genesis.Config.ByzantiumBlock)
 
-		out, _ := json.MarshalIndent(w.conf.genesis.Config, "", "  ")
+		out, _ := json.MarshalIndent(w.conf.Genesis.Config, "", "  ")
 		fmt.Printf("Chain configuration updated:\n\n%s\n", out)
 
 	case choice == "2":
 		// Save whatever genesis configuration we currently have
 		fmt.Println()
 		fmt.Printf("Which file to save the genesis into? (default = %s.json)\n", w.network)
-		out, _ := json.MarshalIndent(w.conf.genesis, "", "  ")
+		out, _ := json.MarshalIndent(w.conf.Genesis, "", "  ")
 		if err := ioutil.WriteFile(w.readDefaultString(fmt.Sprintf("%s.json", w.network)), out, 0644); err != nil {
 			log.Error("Failed to save genesis file", "err", err)
 		}
 		log.Info("Exported existing genesis block")
 
+	case choice == "3":
+		// Make sure we don't have any services running
+		if len(w.conf.servers()) > 0 {
+			log.Error("Genesis reset requires all services and servers torn down")
+			return
+		}
+		log.Info("Genesis block destroyed")
+
+		w.conf.Genesis = nil
+		w.conf.flush()
+
 	default:
 		log.Error("That's not something I can do")
 	}

cmd/puppeth/wizard_intro.go

@@ -24,6 +24,7 @@ import (
 	"os"
 	"path/filepath"
 	"strings"
+	"sync"
 
 	"github.com/ethereum/go-ethereum/log"
 )
@@ -63,7 +64,7 @@ func (w *wizard) run() {
 		for {
 			w.network = w.readString()
 			if !strings.Contains(w.network, " ") {
-				fmt.Printf("Sweet, you can set this via --network=%s next time!\n\n", w.network)
+				fmt.Printf("\nSweet, you can set this via --network=%s next time!\n\n", w.network)
 				break
 			}
 			log.Error("I also like to live dangerously, still no spaces")
@@ -80,22 +81,33 @@ func (w *wizard) run() {
 	} else if err := json.Unmarshal(blob, &w.conf); err != nil {
 		log.Crit("Previous configuration corrupted", "path", w.conf.path, "err", err)
 	} else {
+		// Dial all previously known servers concurrently
+		var pend sync.WaitGroup
 		for server, pubkey := range w.conf.Servers {
+			pend.Add(1)
+
+			go func(server string, pubkey []byte) {
+				defer pend.Done()
+
 				log.Info("Dialing previously configured server", "server", server)
 				client, err := dial(server, pubkey)
 				if err != nil {
 					log.Error("Previous server unreachable", "server", server, "err", err)
 				}
+				w.lock.Lock()
 				w.servers[server] = client
+				w.lock.Unlock()
+			}(server, pubkey)
 		}
-		w.networkStats(false)
+		pend.Wait()
+		w.networkStats()
 	}
 	// Basics done, loop ad infinitum about what to do
 	for {
 		fmt.Println()
 		fmt.Println("What would you like to do? (default = stats)")
 		fmt.Println(" 1. Show network stats")
-		if w.conf.genesis == nil {
+		if w.conf.Genesis == nil {
 			fmt.Println(" 2. Configure new genesis")
 		} else {
 			fmt.Println(" 2. Manage existing genesis")
@@ -110,15 +122,14 @@ func (w *wizard) run() {
 		} else {
 			fmt.Println(" 4. Manage network components")
 		}
-		//fmt.Println(" 5. ProTips for common usecases")
 
 		choice := w.read()
 		switch {
 		case choice == "" || choice == "1":
-			w.networkStats(false)
+			w.networkStats()
 
 		case choice == "2":
-			if w.conf.genesis == nil {
+			if w.conf.Genesis == nil {
 				w.makeGenesis()
 			} else {
 				w.manageGenesis()
@@ -126,7 +137,7 @@ func (w *wizard) run() {
 		case choice == "3":
 			if len(w.servers) == 0 {
 				if w.makeServer() != "" {
-					w.networkStats(false)
+					w.networkStats()
 				}
 			} else {
 				w.manageServers()
@@ -138,9 +149,6 @@ func (w *wizard) run() {
 				w.manageComponents()
 			}
 
-		case choice == "5":
-			w.networkStats(true)
-
 		default:
 			log.Error("That's not something I can do")
 		}

cmd/puppeth/wizard_netstats.go

@@ -18,9 +18,10 @@ package main
 
 import (
 	"encoding/json"
-	"fmt"
 	"os"
+	"sort"
 	"strings"
+	"sync"
 
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/log"
@@ -29,127 +30,257 @@ import (
 
 // networkStats verifies the status of network components and generates a protip
 // configuration set to give users hints on how to do various tasks.
-func (w *wizard) networkStats(tips bool) {
+func (w *wizard) networkStats() {
 	if len(w.servers) == 0 {
-		log.Error("No remote machines to gather stats from")
+		log.Info("No remote machines to gather stats from")
 		return
 	}
-	protips := new(protips)
+	// Clear out some previous configs to refill from current scan
+	w.conf.ethstats = ""
+	w.conf.bootFull = w.conf.bootFull[:0]
+	w.conf.bootLight = w.conf.bootLight[:0]
 
 	// Iterate over all the specified hosts and check their status
-	stats := tablewriter.NewWriter(os.Stdout)
+	var pend sync.WaitGroup
-	stats.SetHeader([]string{"Server", "IP", "Status", "Service", "Details"})
-	stats.SetColWidth(100)
 
+	stats := make(serverStats)
 	for server, pubkey := range w.conf.Servers {
-		client := w.servers[server]
+		pend.Add(1)
+
+		// Gather the service stats for each server concurrently
+		go func(server string, pubkey []byte) {
+			defer pend.Done()
+
+			stat := w.gatherStats(server, pubkey, w.servers[server])
+
+			// All status checks complete, report and check next server
+			w.lock.Lock()
+			defer w.lock.Unlock()
+
+			delete(w.services, server)
+			for service := range stat.services {
+				w.services[server] = append(w.services[server], service)
+			}
+			stats[server] = stat
+		}(server, pubkey)
+	}
+	pend.Wait()
+
+	// Print any collected stats and return
+	stats.render()
+}
+
+// gatherStats gathers service statistics for a particular remote server.
+func (w *wizard) gatherStats(server string, pubkey []byte, client *sshClient) *serverStat {
+	// Gather some global stats to feed into the wizard
+	var (
+		genesis   string
+		ethstats  string
+		bootFull  []string
+		bootLight []string
+	)
+	// Ensure a valid SSH connection to the remote server
 	logger := log.New("server", server)
 	logger.Info("Starting remote server health-check")
 
-		// If the server is not connected, try to connect again
+	stat := &serverStat{
+		address:  client.address,
+		services: make(map[string]map[string]string),
+	}
 	if client == nil {
 		conn, err := dial(server, pubkey)
 		if err != nil {
 			logger.Error("Failed to establish remote connection", "err", err)
-				stats.Append([]string{server, "", err.Error(), "", ""})
+			stat.failure = err.Error()
-				continue
+			return stat
 		}
 		client = conn
 	}
 	// Client connected one way or another, run health-checks
-		services := make(map[string]string)
 	logger.Debug("Checking for nginx availability")
 	if infos, err := checkNginx(client, w.network); err != nil {
 		if err != ErrServiceUnknown {
-				services["nginx"] = err.Error()
+			stat.services["nginx"] = map[string]string{"offline": err.Error()}
 		}
 	} else {
-			services["nginx"] = infos.String()
+		stat.services["nginx"] = infos.Report()
 	}
 	logger.Debug("Checking for ethstats availability")
 	if infos, err := checkEthstats(client, w.network); err != nil {
 		if err != ErrServiceUnknown {
-				services["ethstats"] = err.Error()
+			stat.services["ethstats"] = map[string]string{"offline": err.Error()}
 		}
 	} else {
-			services["ethstats"] = infos.String()
+		stat.services["ethstats"] = infos.Report()
-			protips.ethstats = infos.config
+		ethstats = infos.config
 	}
 	logger.Debug("Checking for bootnode availability")
 	if infos, err := checkNode(client, w.network, true); err != nil {
 		if err != ErrServiceUnknown {
-				services["bootnode"] = err.Error()
+			stat.services["bootnode"] = map[string]string{"offline": err.Error()}
 		}
 	} else {
-			services["bootnode"] = infos.String()
+		stat.services["bootnode"] = infos.Report()
 
-			protips.genesis = string(infos.genesis)
+		genesis = string(infos.genesis)
-			protips.bootFull = append(protips.bootFull, infos.enodeFull)
+		bootFull = append(bootFull, infos.enodeFull)
 		if infos.enodeLight != "" {
-				protips.bootLight = append(protips.bootLight, infos.enodeLight)
+			bootLight = append(bootLight, infos.enodeLight)
 		}
 	}
 	logger.Debug("Checking for sealnode availability")
 	if infos, err := checkNode(client, w.network, false); err != nil {
 		if err != ErrServiceUnknown {
-				services["sealnode"] = err.Error()
+			stat.services["sealnode"] = map[string]string{"offline": err.Error()}
 		}
 	} else {
-			services["sealnode"] = infos.String()
+		stat.services["sealnode"] = infos.Report()
-			protips.genesis = string(infos.genesis)
+		genesis = string(infos.genesis)
+	}
+	logger.Debug("Checking for explorer availability")
+	if infos, err := checkExplorer(client, w.network); err != nil {
+		if err != ErrServiceUnknown {
+			stat.services["explorer"] = map[string]string{"offline": err.Error()}
+		}
+	} else {
+		stat.services["explorer"] = infos.Report()
+	}
+	logger.Debug("Checking for wallet availability")
+	if infos, err := checkWallet(client, w.network); err != nil {
+		if err != ErrServiceUnknown {
+			stat.services["wallet"] = map[string]string{"offline": err.Error()}
+		}
+	} else {
+		stat.services["wallet"] = infos.Report()
 	}
 	logger.Debug("Checking for faucet availability")
 	if infos, err := checkFaucet(client, w.network); err != nil {
 		if err != ErrServiceUnknown {
-				services["faucet"] = err.Error()
+			stat.services["faucet"] = map[string]string{"offline": err.Error()}
 		}
 	} else {
-			services["faucet"] = infos.String()
+		stat.services["faucet"] = infos.Report()
 	}
 	logger.Debug("Checking for dashboard availability")
 	if infos, err := checkDashboard(client, w.network); err != nil {
 		if err != ErrServiceUnknown {
-				services["dashboard"] = err.Error()
+			stat.services["dashboard"] = map[string]string{"offline": err.Error()}
 		}
 	} else {
-			services["dashboard"] = infos.String()
+		stat.services["dashboard"] = infos.Report()
 	}
-		// All status checks complete, report and check next server
+	// Feed and newly discovered information into the wizard
-		delete(w.services, server)
+	w.lock.Lock()
-		for service := range services {
+	defer w.lock.Unlock()
-			w.services[server] = append(w.services[server], service)
+
-		}
+	if genesis != "" && w.conf.Genesis == nil {
-		server, address := client.server, client.address
+		g := new(core.Genesis)
-		for service, status := range services {
+		if err := json.Unmarshal([]byte(genesis), g); err != nil {
-			stats.Append([]string{server, address, "online", service, status})
-			server, address = "", ""
-		}
-		if len(services) == 0 {
-			stats.Append([]string{server, address, "online", "", ""})
-		}
-	}
-	// If a genesis block was found, load it into our configs
-	if protips.genesis != "" && w.conf.genesis == nil {
-		genesis := new(core.Genesis)
-		if err := json.Unmarshal([]byte(protips.genesis), genesis); err != nil {
 			log.Error("Failed to parse remote genesis", "err", err)
 		} else {
-			w.conf.genesis = genesis
+			w.conf.Genesis = g
-			protips.network = genesis.Config.ChainId.Int64()
 		}
 	}
-	if protips.ethstats != "" {
+	if ethstats != "" {
-		w.conf.ethstats = protips.ethstats
+		w.conf.ethstats = ethstats
 	}
-	w.conf.bootFull = protips.bootFull
+	w.conf.bootFull = append(w.conf.bootFull, bootFull...)
-	w.conf.bootLight = protips.bootLight
+	w.conf.bootLight = append(w.conf.bootLight, bootLight...)
 
-	// Print any collected stats and return
+	return stat
-	if !tips {
-		stats.Render()
-	} else {
-		protips.print(w.network)
 }
+
+// serverStat is a collection of service configuration parameters and health
+// check reports to print to the user.
+type serverStat struct {
+	address  string
+	failure  string
+	services map[string]map[string]string
+}
+
+// serverStats is a collection of server stats for multiple hosts.
+type serverStats map[string]*serverStat
+
+// render converts the gathered statistics into a user friendly tabular report
+// and prints it to the standard output.
+func (stats serverStats) render() {
+	// Start gathering service statistics and config parameters
+	table := tablewriter.NewWriter(os.Stdout)
+
+	table.SetHeader([]string{"Server", "Address", "Service", "Config", "Value"})
+	table.SetAlignment(tablewriter.ALIGN_LEFT)
+	table.SetColWidth(100)
+
+	// Find the longest lines for all columns for the hacked separator
+	separator := make([]string, 5)
+	for server, stat := range stats {
+		if len(server) > len(separator[0]) {
+			separator[0] = strings.Repeat("-", len(server))
+		}
+		if len(stat.address) > len(separator[1]) {
+			separator[1] = strings.Repeat("-", len(stat.address))
+		}
+		for service, configs := range stat.services {
+			if len(service) > len(separator[2]) {
+				separator[2] = strings.Repeat("-", len(service))
+			}
+			for config, value := range configs {
+				if len(config) > len(separator[3]) {
+					separator[3] = strings.Repeat("-", len(config))
+				}
+				if len(value) > len(separator[4]) {
+					separator[4] = strings.Repeat("-", len(value))
+				}
+			}
+		}
+	}
+	// Fill up the server report in alphabetical order
+	servers := make([]string, 0, len(stats))
+	for server := range stats {
+		servers = append(servers, server)
+	}
+	sort.Strings(servers)
+
+	for i, server := range servers {
+		// Add a separator between all servers
+		if i > 0 {
+			table.Append(separator)
+		}
+		// Fill up the service report in alphabetical order
+		services := make([]string, 0, len(stats[server].services))
+		for service := range stats[server].services {
+			services = append(services, service)
+		}
+		sort.Strings(services)
+
+		if len(services) == 0 {
+			table.Append([]string{server, stats[server].address, "", "", ""})
+		}
+		for j, service := range services {
+			// Add an empty line between all services
+			if j > 0 {
+				table.Append([]string{"", "", "", separator[3], separator[4]})
+			}
+			// Fill up the config report in alphabetical order
+			configs := make([]string, 0, len(stats[server].services[service]))
+			for service := range stats[server].services[service] {
+				configs = append(configs, service)
+			}
+			sort.Strings(configs)
+
+			for k, config := range configs {
+				switch {
+				case j == 0 && k == 0:
+					table.Append([]string{server, stats[server].address, service, config, stats[server].services[service][config]})
+				case k == 0:
+					table.Append([]string{"", "", service, config, stats[server].services[service][config]})
+				default:
+					table.Append([]string{"", "", "", config, stats[server].services[service][config]})
+				}
+			}
+		}
+	}
+	table.Render()
 }
 
 // protips contains a collection of network infos to report pro-tips
@@ -161,75 +292,3 @@ type protips struct {
 	bootLight []string
 	ethstats  string
 }
-
-// print analyzes the network information available and prints a collection of
-// pro tips for the user's consideration.
-func (p *protips) print(network string) {
-	// If a known genesis block is available, display it and prepend an init command
-	fullinit, lightinit := "", ""
-	if p.genesis != "" {
-		fullinit = fmt.Sprintf("geth --datadir=$HOME/.%s init %s.json && ", network, network)
-		lightinit = fmt.Sprintf("geth --datadir=$HOME/.%s --light init %s.json && ", network, network)
-	}
-	// If an ethstats server is available, add the ethstats flag
-	statsflag := ""
-	if p.ethstats != "" {
-		if strings.Contains(p.ethstats, " ") {
-			statsflag = fmt.Sprintf(` --ethstats="yournode:%s"`, p.ethstats)
-		} else {
-			statsflag = fmt.Sprintf(` --ethstats=yournode:%s`, p.ethstats)
-		}
-	}
-	// If bootnodes have been specified, add the bootnode flag
-	bootflagFull := ""
-	if len(p.bootFull) > 0 {
-		bootflagFull = fmt.Sprintf(` --bootnodes %s`, strings.Join(p.bootFull, ","))
-	}
-	bootflagLight := ""
-	if len(p.bootLight) > 0 {
-		bootflagLight = fmt.Sprintf(` --bootnodes %s`, strings.Join(p.bootLight, ","))
-	}
-	// Assemble all the known pro-tips
-	var tasks, tips []string
-
-	tasks = append(tasks, "Run an archive node with historical data")
-	tips = append(tips, fmt.Sprintf("%sgeth --networkid=%d --datadir=$HOME/.%s --cache=1024%s%s", fullinit, p.network, network, statsflag, bootflagFull))
-
-	tasks = append(tasks, "Run a full node with recent data only")
-	tips = append(tips, fmt.Sprintf("%sgeth --networkid=%d --datadir=$HOME/.%s --cache=512 --fast%s%s", fullinit, p.network, network, statsflag, bootflagFull))
-
-	tasks = append(tasks, "Run a light node with on demand retrievals")
-	tips = append(tips, fmt.Sprintf("%sgeth --networkid=%d --datadir=$HOME/.%s --light%s%s", lightinit, p.network, network, statsflag, bootflagLight))
-
-	tasks = append(tasks, "Run an embedded node with constrained memory")
-	tips = append(tips, fmt.Sprintf("%sgeth --networkid=%d --datadir=$HOME/.%s --cache=32 --light%s%s", lightinit, p.network, network, statsflag, bootflagLight))
-
-	// If the tips are short, display in a table
-	short := true
-	for _, tip := range tips {
-		if len(tip) > 100 {
-			short = false
-			break
-		}
-	}
-	fmt.Println()
-	if short {
-		howto := tablewriter.NewWriter(os.Stdout)
-		howto.SetHeader([]string{"Fun tasks for you", "Tips on how to"})
-		howto.SetColWidth(100)
-
-		for i := 0; i < len(tasks); i++ {
-			howto.Append([]string{tasks[i], tips[i]})
-		}
-		howto.Render()
-		return
-	}
-	// Meh, tips got ugly, split into many lines
-	for i := 0; i < len(tasks); i++ {
-		fmt.Println(tasks[i])
-		fmt.Println(strings.Repeat("-", len(tasks[i])))
-		fmt.Println(tips[i])
-		fmt.Println()
-		fmt.Println()
-	}
-}

cmd/puppeth/wizard_network.go

@@ -53,12 +53,12 @@ func (w *wizard) manageServers() {
 		w.conf.flush()
 
 		log.Info("Disconnected existing server", "server", server)
-		w.networkStats(false)
+		w.networkStats()
 		return
 	}
 	// If the user requested connecting a new server, do it
 	if w.makeServer() != "" {
-		w.networkStats(false)
+		w.networkStats()
 	}
 }
 
@@ -71,7 +71,7 @@ func (w *wizard) makeServer() string {
 	fmt.Println()
 	fmt.Println("Please enter remote server's address:")
 
-	// Read and fial the server to ensure docker is present
+	// Read and dial the server to ensure docker is present
 	input := w.readString()
 
 	client, err := dial(input, nil)
@@ -174,9 +174,10 @@ func (w *wizard) deployComponent() {
 	fmt.Println(" 1. Ethstats  - Network monitoring tool")
 	fmt.Println(" 2. Bootnode  - Entry point of the network")
 	fmt.Println(" 3. Sealer    - Full node minting new blocks")
-	fmt.Println(" 4. Wallet    - Browser wallet for quick sends (todo)")
+	fmt.Println(" 4. Explorer  - Chain analysis webservice (ethash only)")
-	fmt.Println(" 5. Faucet    - Crypto faucet to give away funds")
+	fmt.Println(" 5. Wallet    - Browser wallet for quick sends")
-	fmt.Println(" 6. Dashboard - Website listing above web-services")
+	fmt.Println(" 6. Faucet    - Crypto faucet to give away funds")
+	fmt.Println(" 7. Dashboard - Website listing above web-services")
 
 	switch w.read() {
 	case "1":
@@ -186,9 +187,12 @@ func (w *wizard) deployComponent() {
 	case "3":
 		w.deployNode(false)
 	case "4":
+		w.deployExplorer()
 	case "5":
-		w.deployFaucet()
+		w.deployWallet()
 	case "6":
+		w.deployFaucet()
+	case "7":
 		w.deployDashboard()
 	default:
 		log.Error("That's not something I can do")

cmd/puppeth/wizard_nginx.go

@@ -29,7 +29,8 @@ import (
 //
 // If the user elects not to use a reverse proxy, an empty hostname is returned!
 func (w *wizard) ensureVirtualHost(client *sshClient, port int, def string) (string, error) {
-	if proxy, _ := checkNginx(client, w.network); proxy != nil {
+	proxy, _ := checkNginx(client, w.network)
+	if proxy != nil {
 		// Reverse proxy is running, if ports match, we need a virtual host
 		if proxy.port == port {
 			fmt.Println()
@@ -41,7 +42,13 @@ func (w *wizard) ensureVirtualHost(client *sshClient, port int, def string) (str
 	fmt.Println()
 	fmt.Println("Allow sharing the port with other services (y/n)? (default = yes)")
 	if w.readDefaultString("y") == "y" {
-		if out, err := deployNginx(client, w.network, port); err != nil {
+		nocache := false
+		if proxy != nil {
+			fmt.Println()
+			fmt.Printf("Should the reverse-proxy be rebuilt from scratch (y/n)? (default = no)\n")
+			nocache = w.readDefaultString("n") != "n"
+		}
+		if out, err := deployNginx(client, w.network, port, nocache); err != nil {
 			log.Error("Failed to deploy reverse-proxy", "err", err)
 			if len(out) > 0 {
 				fmt.Printf("%s\n", out)

cmd/puppeth/wizard_node.go

@@ -29,7 +29,7 @@ import (
 // deployNode creates a new node configuration based on some user input.
 func (w *wizard) deployNode(boot bool) {
 	// Do some sanity check before the user wastes time on input
-	if w.conf.genesis == nil {
+	if w.conf.Genesis == nil {
 		log.Error("No genesis block configured")
 		return
 	}
@@ -44,7 +44,7 @@ func (w *wizard) deployNode(boot bool) {
 	}
 	client := w.servers[server]
 
-	// Retrieve any active ethstats configurations from the server
+	// Retrieve any active node configurations from the server
 	infos, err := checkNode(client, w.network, boot)
 	if err != nil {
 		if boot {
@@ -53,8 +53,10 @@ func (w *wizard) deployNode(boot bool) {
 			infos = &nodeInfos{portFull: 30303, peersTotal: 50, peersLight: 0, gasTarget: 4.7, gasPrice: 18}
 		}
 	}
-	infos.genesis, _ = json.MarshalIndent(w.conf.genesis, "", "  ")
+	existed := err == nil
-	infos.network = w.conf.genesis.Config.ChainId.Int64()
+
+	infos.genesis, _ = json.MarshalIndent(w.conf.Genesis, "", "  ")
+	infos.network = w.conf.Genesis.Config.ChainId.Int64()
 
 	// Figure out where the user wants to store the persistent data
 	fmt.Println()
@@ -65,6 +67,16 @@ func (w *wizard) deployNode(boot bool) {
 		fmt.Printf("Where should data be stored on the remote machine? (default = %s)\n", infos.datadir)
 		infos.datadir = w.readDefaultString(infos.datadir)
 	}
+	if w.conf.Genesis.Config.Ethash != nil && !boot {
+		fmt.Println()
+		if infos.ethashdir == "" {
+			fmt.Printf("Where should the ethash mining DAGs be stored on the remote machine?\n")
+			infos.ethashdir = w.readString()
+		} else {
+			fmt.Printf("Where should the ethash mining DAGs be stored on the remote machine? (default = %s)\n", infos.ethashdir)
+			infos.ethashdir = w.readDefaultString(infos.ethashdir)
+		}
+	}
 	// Figure out which port to listen on
 	fmt.Println()
 	fmt.Printf("Which TCP/UDP port to listen on? (default = %d)\n", infos.portFull)
@@ -91,7 +103,7 @@ func (w *wizard) deployNode(boot bool) {
 	}
 	// If the node is a miner/signer, load up needed credentials
 	if !boot {
-		if w.conf.genesis.Config.Ethash != nil {
+		if w.conf.Genesis.Config.Ethash != nil {
 			// Ethash based miners only need an etherbase to mine against
 			fmt.Println()
 			if infos.etherbase == "" {
@@ -106,7 +118,7 @@ func (w *wizard) deployNode(boot bool) {
 				fmt.Printf("What address should the miner user? (default = %s)\n", infos.etherbase)
 				infos.etherbase = w.readDefaultAddress(common.HexToAddress(infos.etherbase)).Hex()
 			}
-		} else if w.conf.genesis.Config.Clique != nil {
+		} else if w.conf.Genesis.Config.Clique != nil {
 			// If a previous signer was already set, offer to reuse it
 			if infos.keyJSON != "" {
 				if key, err := keystore.DecryptKey([]byte(infos.keyJSON), infos.keyPass); err != nil {
@@ -145,7 +157,13 @@ func (w *wizard) deployNode(boot bool) {
 		infos.gasPrice = w.readDefaultFloat(infos.gasPrice)
 	}
 	// Try to deploy the full node on the host
-	if out, err := deployNode(client, w.network, w.conf.bootFull, w.conf.bootLight, infos); err != nil {
+	nocache := false
+	if existed {
+		fmt.Println()
+		fmt.Printf("Should the node be built from scratch (y/n)? (default = no)\n")
+		nocache = w.readDefaultString("n") != "n"
+	}
+	if out, err := deployNode(client, w.network, w.conf.bootFull, w.conf.bootLight, infos, nocache); err != nil {
 		log.Error("Failed to deploy Ethereum node container", "err", err)
 		if len(out) > 0 {
 			fmt.Printf("%s\n", out)
@@ -156,5 +174,5 @@ func (w *wizard) deployNode(boot bool) {
 	log.Info("Waiting for node to finish booting")
 	time.Sleep(3 * time.Second)
 
-	w.networkStats(false)
+	w.networkStats()
 }

cmd/puppeth/wizard_wallet.go

@@ -0,0 +1,113 @@
+// Copyright 2017 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 <http://www.gnu.org/licenses/>.
+
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"time"
+
+	"github.com/ethereum/go-ethereum/log"
+)
+
+// deployWallet creates a new web wallet based on some user input.
+func (w *wizard) deployWallet() {
+	// Do some sanity check before the user wastes time on input
+	if w.conf.Genesis == nil {
+		log.Error("No genesis block configured")
+		return
+	}
+	if w.conf.ethstats == "" {
+		log.Error("No ethstats server configured")
+		return
+	}
+	// Select the server to interact with
+	server := w.selectServer()
+	if server == "" {
+		return
+	}
+	client := w.servers[server]
+
+	// Retrieve any active node configurations from the server
+	infos, err := checkWallet(client, w.network)
+	if err != nil {
+		infos = &walletInfos{
+			nodePort: 30303, rpcPort: 8545, webPort: 80, webHost: client.server,
+		}
+	}
+	existed := err == nil
+
+	infos.genesis, _ = json.MarshalIndent(w.conf.Genesis, "", "  ")
+	infos.network = w.conf.Genesis.Config.ChainId.Int64()
+
+	// Figure out which port to listen on
+	fmt.Println()
+	fmt.Printf("Which port should the wallet listen on? (default = %d)\n", infos.webPort)
+	infos.webPort = w.readDefaultInt(infos.webPort)
+
+	// Figure which virtual-host to deploy ethstats on
+	if infos.webHost, err = w.ensureVirtualHost(client, infos.webPort, infos.webHost); err != nil {
+		log.Error("Failed to decide on wallet host", "err", err)
+		return
+	}
+	// Figure out where the user wants to store the persistent data
+	fmt.Println()
+	if infos.datadir == "" {
+		fmt.Printf("Where should data be stored on the remote machine?\n")
+		infos.datadir = w.readString()
+	} else {
+		fmt.Printf("Where should data be stored on the remote machine? (default = %s)\n", infos.datadir)
+		infos.datadir = w.readDefaultString(infos.datadir)
+	}
+	// Figure out which port to listen on
+	fmt.Println()
+	fmt.Printf("Which TCP/UDP port should the backing node listen on? (default = %d)\n", infos.nodePort)
+	infos.nodePort = w.readDefaultInt(infos.nodePort)
+
+	fmt.Println()
+	fmt.Printf("Which port should the backing RPC API listen on? (default = %d)\n", infos.rpcPort)
+	infos.rpcPort = w.readDefaultInt(infos.rpcPort)
+
+	// Set a proper name to report on the stats page
+	fmt.Println()
+	if infos.ethstats == "" {
+		fmt.Printf("What should the wallet be called on the stats page?\n")
+		infos.ethstats = w.readString() + ":" + w.conf.ethstats
+	} else {
+		fmt.Printf("What should the wallet be called on the stats page? (default = %s)\n", infos.ethstats)
+		infos.ethstats = w.readDefaultString(infos.ethstats) + ":" + w.conf.ethstats
+	}
+	// Try to deploy the wallet on the host
+	nocache := false
+	if existed {
+		fmt.Println()
+		fmt.Printf("Should the wallet be built from scratch (y/n)? (default = no)\n")
+		nocache = w.readDefaultString("n") != "n"
+	}
+	if out, err := deployWallet(client, w.network, w.conf.bootFull, infos, nocache); err != nil {
+		log.Error("Failed to deploy wallet container", "err", err)
+		if len(out) > 0 {
+			fmt.Printf("%s\n", out)
+		}
+		return
+	}
+	// All ok, run a network scan to pick any changes up
+	log.Info("Waiting for node to finish booting")
+	time.Sleep(3 * time.Second)
+
+	w.networkStats()
+}

cmd/rlpdump/main.go

@@ -51,7 +51,7 @@ func main() {
 	var r io.Reader
 	switch {
 	case *hexMode != "":
-		data, err := hex.DecodeString(*hexMode)
+		data, err := hex.DecodeString(strings.TrimPrefix(*hexMode, "0x"))
 		if err != nil {
 			die(err)
 		}

cmd/utils/flags.go

@@ -38,6 +38,7 @@ import (
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/dashboard"
 	"github.com/ethereum/go-ethereum/eth"
 	"github.com/ethereum/go-ethereum/eth/downloader"
 	"github.com/ethereum/go-ethereum/eth/gasprice"
@@ -183,6 +184,31 @@ var (
 		Name:  "lightkdf",
 		Usage: "Reduce key-derivation RAM & CPU usage at some expense of KDF strength",
 	}
+	// Dashboard settings
+	DashboardEnabledFlag = cli.BoolFlag{
+		Name:  "dashboard",
+		Usage: "Enable the dashboard",
+	}
+	DashboardAddrFlag = cli.StringFlag{
+		Name:  "dashboard.addr",
+		Usage: "Dashboard listening interface",
+		Value: dashboard.DefaultConfig.Host,
+	}
+	DashboardPortFlag = cli.IntFlag{
+		Name:  "dashboard.host",
+		Usage: "Dashboard listening port",
+		Value: dashboard.DefaultConfig.Port,
+	}
+	DashboardRefreshFlag = cli.DurationFlag{
+		Name:  "dashboard.refresh",
+		Usage: "Dashboard metrics collection refresh rate",
+		Value: dashboard.DefaultConfig.Refresh,
+	}
+	DashboardAssetsFlag = cli.StringFlag{
+		Name:  "dashboard.assets",
+		Usage: "Developer flag to serve the dashboard from the local file system",
+		Value: dashboard.DefaultConfig.Assets,
+	}
 	// Ethash settings
 	EthashCacheDirFlag = DirectoryFlag{
 		Name:  "ethash.cachedir",
@@ -191,27 +217,27 @@ var (
 	EthashCachesInMemoryFlag = cli.IntFlag{
 		Name:  "ethash.cachesinmem",
 		Usage: "Number of recent ethash caches to keep in memory (16MB each)",
-		Value: eth.DefaultConfig.EthashCachesInMem,
+		Value: eth.DefaultConfig.Ethash.CachesInMem,
 	}
 	EthashCachesOnDiskFlag = cli.IntFlag{
 		Name:  "ethash.cachesondisk",
 		Usage: "Number of recent ethash caches to keep on disk (16MB each)",
-		Value: eth.DefaultConfig.EthashCachesOnDisk,
+		Value: eth.DefaultConfig.Ethash.CachesOnDisk,
 	}
 	EthashDatasetDirFlag = DirectoryFlag{
 		Name:  "ethash.dagdir",
 		Usage: "Directory to store the ethash mining DAGs (default = inside home folder)",
-		Value: DirectoryString{eth.DefaultConfig.EthashDatasetDir},
+		Value: DirectoryString{eth.DefaultConfig.Ethash.DatasetDir},
 	}
 	EthashDatasetsInMemoryFlag = cli.IntFlag{
 		Name:  "ethash.dagsinmem",
 		Usage: "Number of recent ethash mining DAGs to keep in memory (1+GB each)",
-		Value: eth.DefaultConfig.EthashDatasetsInMem,
+		Value: eth.DefaultConfig.Ethash.DatasetsInMem,
 	}
 	EthashDatasetsOnDiskFlag = cli.IntFlag{
 		Name:  "ethash.dagsondisk",
 		Usage: "Number of recent ethash mining DAGs to keep on disk (1+GB each)",
-		Value: eth.DefaultConfig.EthashDatasetsOnDisk,
+		Value: eth.DefaultConfig.Ethash.DatasetsOnDisk,
 	}
 	// Transaction pool settings
 	TxPoolNoLocalsFlag = cli.BoolFlag{
@@ -558,6 +584,8 @@ func setBootstrapNodes(ctx *cli.Context, cfg *p2p.Config) {
 		urls = params.TestnetBootnodes
 	case ctx.GlobalBool(RinkebyFlag.Name):
 		urls = params.RinkebyBootnodes
+	case cfg.BootstrapNodes != nil:
+		return // already set, don't apply defaults.
 	}
 
 	cfg.BootstrapNodes = make([]*discover.Node, 0, len(urls))
@@ -884,34 +912,60 @@ func setTxPool(ctx *cli.Context, cfg *core.TxPoolConfig) {
 
 func setEthash(ctx *cli.Context, cfg *eth.Config) {
 	if ctx.GlobalIsSet(EthashCacheDirFlag.Name) {
-		cfg.EthashCacheDir = ctx.GlobalString(EthashCacheDirFlag.Name)
+		cfg.Ethash.CacheDir = ctx.GlobalString(EthashCacheDirFlag.Name)
 	}
 	if ctx.GlobalIsSet(EthashDatasetDirFlag.Name) {
-		cfg.EthashDatasetDir = ctx.GlobalString(EthashDatasetDirFlag.Name)
+		cfg.Ethash.DatasetDir = ctx.GlobalString(EthashDatasetDirFlag.Name)
 	}
 	if ctx.GlobalIsSet(EthashCachesInMemoryFlag.Name) {
-		cfg.EthashCachesInMem = ctx.GlobalInt(EthashCachesInMemoryFlag.Name)
+		cfg.Ethash.CachesInMem = ctx.GlobalInt(EthashCachesInMemoryFlag.Name)
 	}
 	if ctx.GlobalIsSet(EthashCachesOnDiskFlag.Name) {
-		cfg.EthashCachesOnDisk = ctx.GlobalInt(EthashCachesOnDiskFlag.Name)
+		cfg.Ethash.CachesOnDisk = ctx.GlobalInt(EthashCachesOnDiskFlag.Name)
 	}
 	if ctx.GlobalIsSet(EthashDatasetsInMemoryFlag.Name) {
-		cfg.EthashDatasetsInMem = ctx.GlobalInt(EthashDatasetsInMemoryFlag.Name)
+		cfg.Ethash.DatasetsInMem = ctx.GlobalInt(EthashDatasetsInMemoryFlag.Name)
 	}
 	if ctx.GlobalIsSet(EthashDatasetsOnDiskFlag.Name) {
-		cfg.EthashDatasetsOnDisk = ctx.GlobalInt(EthashDatasetsOnDiskFlag.Name)
+		cfg.Ethash.DatasetsOnDisk = ctx.GlobalInt(EthashDatasetsOnDiskFlag.Name)
 	}
 }
 
-func checkExclusive(ctx *cli.Context, flags ...cli.Flag) {
+// checkExclusive verifies that only a single isntance of the provided flags was
+// set by the user. Each flag might optionally be followed by a string type to
+// specialize it further.
+func checkExclusive(ctx *cli.Context, args ...interface{}) {
 	set := make([]string, 0, 1)
-	for _, flag := range flags {
+	for i := 0; i < len(args); i++ {
+		// Make sure the next argument is a flag and skip if not set
+		flag, ok := args[i].(cli.Flag)
+		if !ok {
+			panic(fmt.Sprintf("invalid argument, not cli.Flag type: %T", args[i]))
+		}
+		// Check if next arg extends current and expand its name if so
+		name := flag.GetName()
+
+		if i+1 < len(args) {
+			switch option := args[i+1].(type) {
+			case string:
+				// Extended flag, expand the name and shift the arguments
+				if ctx.GlobalString(flag.GetName()) == option {
+					name += "=" + option
+				}
+				i++
+
+			case cli.Flag:
+			default:
+				panic(fmt.Sprintf("invalid argument, not cli.Flag or string extension: %T", args[i+1]))
+			}
+		}
+		// Mark the flag if it's set
 		if ctx.GlobalIsSet(flag.GetName()) {
-			set = append(set, "--"+flag.GetName())
+			set = append(set, "--"+name)
 		}
 	}
 	if len(set) > 1 {
-		Fatalf("flags %v can't be used at the same time", strings.Join(set, ", "))
+		Fatalf("Flags %v can't be used at the same time", strings.Join(set, ", "))
 	}
 }
 
@@ -930,6 +984,8 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *eth.Config) {
 	// Avoid conflicting network flags
 	checkExclusive(ctx, DeveloperFlag, TestnetFlag, RinkebyFlag)
 	checkExclusive(ctx, FastSyncFlag, LightModeFlag, SyncModeFlag)
+	checkExclusive(ctx, LightServFlag, LightModeFlag)
+	checkExclusive(ctx, LightServFlag, SyncModeFlag, "light")
 
 	ks := stack.AccountManager().Backends(keystore.KeyStoreType)[0].(*keystore.KeyStore)
 	setEtherbase(ctx, ks, cfg)
@@ -1019,6 +1075,14 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *eth.Config) {
 	}
 }
 
+// SetDashboardConfig applies dashboard related command line flags to the config.
+func SetDashboardConfig(ctx *cli.Context, cfg *dashboard.Config) {
+	cfg.Host = ctx.GlobalString(DashboardAddrFlag.Name)
+	cfg.Port = ctx.GlobalInt(DashboardPortFlag.Name)
+	cfg.Refresh = ctx.GlobalDuration(DashboardRefreshFlag.Name)
+	cfg.Assets = ctx.GlobalString(DashboardAssetsFlag.Name)
+}
+
 // RegisterEthService adds an Ethereum client to the stack.
 func RegisterEthService(stack *node.Node, cfg *eth.Config) {
 	var err error
@@ -1041,6 +1105,13 @@ func RegisterEthService(stack *node.Node, cfg *eth.Config) {
 	}
 }
 
+// RegisterDashboardService adds a dashboard to the stack.
+func RegisterDashboardService(stack *node.Node, cfg *dashboard.Config) {
+	stack.Register(func(ctx *node.ServiceContext) (node.Service, error) {
+		return dashboard.New(cfg)
+	})
+}
+
 // RegisterShhService configures Whisper and adds it to the given node.
 func RegisterShhService(stack *node.Node, cfg *whisper.Config) {
 	if err := stack.Register(func(n *node.ServiceContext) (node.Service, error) {
@@ -1118,10 +1189,14 @@ func MakeChain(ctx *cli.Context, stack *node.Node) (chain *core.BlockChain, chai
 	} else {
 		engine = ethash.NewFaker()
 		if !ctx.GlobalBool(FakePoWFlag.Name) {
-			engine = ethash.New(
+			engine = ethash.New(ethash.Config{
-				stack.ResolvePath(eth.DefaultConfig.EthashCacheDir), eth.DefaultConfig.EthashCachesInMem, eth.DefaultConfig.EthashCachesOnDisk,
+				CacheDir:       stack.ResolvePath(eth.DefaultConfig.Ethash.CacheDir),
-				stack.ResolvePath(eth.DefaultConfig.EthashDatasetDir), eth.DefaultConfig.EthashDatasetsInMem, eth.DefaultConfig.EthashDatasetsOnDisk,
+				CachesInMem:    eth.DefaultConfig.Ethash.CachesInMem,
-			)
+				CachesOnDisk:   eth.DefaultConfig.Ethash.CachesOnDisk,
+				DatasetDir:     stack.ResolvePath(eth.DefaultConfig.Ethash.DatasetDir),
+				DatasetsInMem:  eth.DefaultConfig.Ethash.DatasetsInMem,
+				DatasetsOnDisk: eth.DefaultConfig.Ethash.DatasetsOnDisk,
+			})
 		}
 	}
 	vmcfg := vm.Config{EnablePreimageRecording: ctx.GlobalBool(VMEnableDebugFlag.Name)}

common/hexutil/hexutil.go

@@ -53,9 +53,7 @@ var (
 
 type decError struct{ msg string }
 
-func (err decError) Error() string {
+func (err decError) Error() string { return err.msg }
-	return string(err.msg)
-}
 
 // Decode decodes a hex string with 0x prefix.
 func Decode(input string) ([]byte, error) {

common/hexutil/json.go

@@ -223,7 +223,7 @@ func (b *Uint64) UnmarshalText(input []byte) error {
 			return ErrSyntax
 		}
 		dec *= 16
-		dec += uint64(nib)
+		dec += nib
 	}
 	*b = Uint64(dec)
 	return nil

consensus/ethash/algorithm_go1.8.go

@@ -31,7 +31,7 @@ func cacheSize(block uint64) uint64 {
 		return cacheSizes[epoch]
 	}
 	// No known cache size, calculate manually (sanity branch only)
-	size := uint64(cacheInitBytes + cacheGrowthBytes*uint64(epoch) - hashBytes)
+	size := cacheInitBytes + cacheGrowthBytes*uint64(epoch) - hashBytes
 	for !new(big.Int).SetUint64(size / hashBytes).ProbablyPrime(1) { // Always accurate for n < 2^64
 		size -= 2 * hashBytes
 	}
@@ -49,7 +49,7 @@ func datasetSize(block uint64) uint64 {
 		return datasetSizes[epoch]
 	}
 	// No known dataset size, calculate manually (sanity branch only)
-	size := uint64(datasetInitBytes + datasetGrowthBytes*uint64(epoch) - mixBytes)
+	size := datasetInitBytes + datasetGrowthBytes*uint64(epoch) - mixBytes
 	for !new(big.Int).SetUint64(size / mixBytes).ProbablyPrime(1) { // Always accurate for n < 2^64
 		size -= 2 * mixBytes
 	}

consensus/ethash/algorithm_test.go

@@ -703,8 +703,7 @@ func TestConcurrentDiskCacheGeneration(t *testing.T) {
 
 		go func(idx int) {
 			defer pend.Done()
-
+			ethash := New(Config{cachedir, 0, 1, "", 0, 0, ModeNormal})
-			ethash := New(cachedir, 0, 1, "", 0, 0)
 			if err := ethash.VerifySeal(nil, block.Header()); err != nil {
 				t.Errorf("proc %d: block verification failed: %v", idx, err)
 			}

consensus/ethash/consensus.go

@@ -36,8 +36,8 @@ import (
 
 // Ethash proof-of-work protocol constants.
 var (
-	frontierBlockReward  *big.Int = big.NewInt(5e+18) // Block reward in wei for successfully mining a block
+	FrontierBlockReward  *big.Int = big.NewInt(5e+18) // Block reward in wei for successfully mining a block
-	byzantiumBlockReward *big.Int = big.NewInt(3e+18) // Block reward in wei for successfully mining a block upward from Byzantium
+	ByzantiumBlockReward *big.Int = big.NewInt(3e+18) // Block reward in wei for successfully mining a block upward from Byzantium
 	maxUncles                     = 2                 // Maximum number of uncles allowed in a single block
 )
 
@@ -68,7 +68,7 @@ func (ethash *Ethash) Author(header *types.Header) (common.Address, error) {
 // stock Ethereum ethash engine.
 func (ethash *Ethash) VerifyHeader(chain consensus.ChainReader, header *types.Header, seal bool) error {
 	// If we're running a full engine faking, accept any input as valid
-	if ethash.fakeFull {
+	if ethash.config.PowMode == ModeFullFake {
 		return nil
 	}
 	// Short circuit if the header is known, or it's parent not
@@ -89,7 +89,7 @@ func (ethash *Ethash) VerifyHeader(chain consensus.ChainReader, header *types.He
 // a results channel to retrieve the async verifications.
 func (ethash *Ethash) VerifyHeaders(chain consensus.ChainReader, headers []*types.Header, seals []bool) (chan<- struct{}, <-chan error) {
 	// If we're running a full engine faking, accept any input as valid
-	if ethash.fakeFull || len(headers) == 0 {
+	if ethash.config.PowMode == ModeFullFake || len(headers) == 0 {
 		abort, results := make(chan struct{}), make(chan error, len(headers))
 		for i := 0; i < len(headers); i++ {
 			results <- nil
@@ -169,7 +169,7 @@ func (ethash *Ethash) verifyHeaderWorker(chain consensus.ChainReader, headers []
 // rules of the stock Ethereum ethash engine.
 func (ethash *Ethash) VerifyUncles(chain consensus.ChainReader, block *types.Block) error {
 	// If we're running a full engine faking, accept any input as valid
-	if ethash.fakeFull {
+	if ethash.config.PowMode == ModeFullFake {
 		return nil
 	}
 	// Verify that there are at most 2 uncles included in this block
@@ -455,7 +455,7 @@ func calcDifficultyFrontier(time uint64, parent *types.Header) *big.Int {
 // the PoW difficulty requirements.
 func (ethash *Ethash) VerifySeal(chain consensus.ChainReader, header *types.Header) error {
 	// If we're running a fake PoW, accept any seal as valid
-	if ethash.fakeMode {
+	if ethash.config.PowMode == ModeFake || ethash.config.PowMode == ModeFullFake {
 		time.Sleep(ethash.fakeDelay)
 		if ethash.fakeFail == header.Number.Uint64() {
 			return errInvalidPoW
@@ -480,7 +480,7 @@ func (ethash *Ethash) VerifySeal(chain consensus.ChainReader, header *types.Head
 	cache := ethash.cache(number)
 
 	size := datasetSize(number)
-	if ethash.tester {
+	if ethash.config.PowMode == ModeTest {
 		size = 32 * 1024
 	}
 	digest, result := hashimotoLight(size, cache, header.HashNoNonce().Bytes(), header.Nonce.Uint64())
@@ -529,9 +529,9 @@ var (
 // TODO (karalabe): Move the chain maker into this package and make this private!
 func AccumulateRewards(config *params.ChainConfig, state *state.StateDB, header *types.Header, uncles []*types.Header) {
 	// Select the correct block reward based on chain progression
-	blockReward := frontierBlockReward
+	blockReward := FrontierBlockReward
 	if config.IsByzantium(header.Number) {
-		blockReward = byzantiumBlockReward
+		blockReward = ByzantiumBlockReward
 	}
 	// Accumulate the rewards for the miner and any included uncles
 	reward := new(big.Int).Set(blockReward)

consensus/ethash/ethash.go

@@ -45,7 +45,7 @@ var (
 	maxUint256 = new(big.Int).Exp(big.NewInt(2), big.NewInt(256), big.NewInt(0))
 
 	// sharedEthash is a full instance that can be shared between multiple users.
-	sharedEthash = New("", 3, 0, "", 1, 0)
+	sharedEthash = New(Config{"", 3, 0, "", 1, 0, ModeNormal})
 
 	// algorithmRevision is the data structure version used for file naming.
 	algorithmRevision = 23
@@ -320,15 +320,32 @@ func MakeDataset(block uint64, dir string) {
 	d.release()
 }
 
+// Mode defines the type and amount of PoW verification an ethash engine makes.
+type Mode uint
+
+const (
+	ModeNormal Mode = iota
+	ModeShared
+	ModeTest
+	ModeFake
+	ModeFullFake
+)
+
+// Config are the configuration parameters of the ethash.
+type Config struct {
+	CacheDir       string
+	CachesInMem    int
+	CachesOnDisk   int
+	DatasetDir     string
+	DatasetsInMem  int
+	DatasetsOnDisk int
+	PowMode        Mode
+}
+
 // Ethash is a consensus engine based on proot-of-work implementing the ethash
 // algorithm.
 type Ethash struct {
-	cachedir     string // Data directory to store the verification caches
+	config Config
-	cachesinmem  int    // Number of caches to keep in memory
-	cachesondisk int    // Number of caches to keep on disk
-	dagdir       string // Data directory to store full mining datasets
-	dagsinmem    int    // Number of mining datasets to keep in memory
-	dagsondisk   int    // Number of mining datasets to keep on disk
 
 	caches   map[uint64]*cache   // In memory caches to avoid regenerating too often
 	fcache   *cache              // Pre-generated cache for the estimated future epoch
@@ -342,10 +359,7 @@ type Ethash struct {
 	hashrate metrics.Meter // Meter tracking the average hashrate
 
 	// The fields below are hooks for testing
-	tester    bool          // Flag whether to use a smaller test dataset
 	shared    *Ethash       // Shared PoW verifier to avoid cache regeneration
-	fakeMode  bool          // Flag whether to disable PoW checking
-	fakeFull  bool          // Flag whether to disable all consensus rules
 	fakeFail  uint64        // Block number which fails PoW check even in fake mode
 	fakeDelay time.Duration // Time delay to sleep for before returning from verify
 
@@ -353,24 +367,19 @@ type Ethash struct {
 }
 
 // New creates a full sized ethash PoW scheme.
-func New(cachedir string, cachesinmem, cachesondisk int, dagdir string, dagsinmem, dagsondisk int) *Ethash {
+func New(config Config) *Ethash {
-	if cachesinmem <= 0 {
+	if config.CachesInMem <= 0 {
-		log.Warn("One ethash cache must always be in memory", "requested", cachesinmem)
+		log.Warn("One ethash cache must always be in memory", "requested", config.CachesInMem)
-		cachesinmem = 1
+		config.CachesInMem = 1
 	}
-	if cachedir != "" && cachesondisk > 0 {
+	if config.CacheDir != "" && config.CachesOnDisk > 0 {
-		log.Info("Disk storage enabled for ethash caches", "dir", cachedir, "count", cachesondisk)
+		log.Info("Disk storage enabled for ethash caches", "dir", config.CacheDir, "count", config.CachesOnDisk)
 	}
-	if dagdir != "" && dagsondisk > 0 {
+	if config.DatasetDir != "" && config.DatasetsOnDisk > 0 {
-		log.Info("Disk storage enabled for ethash DAGs", "dir", dagdir, "count", dagsondisk)
+		log.Info("Disk storage enabled for ethash DAGs", "dir", config.DatasetDir, "count", config.DatasetsOnDisk)
 	}
 	return &Ethash{
-		cachedir:     cachedir,
+		config:   config,
-		cachesinmem:  cachesinmem,
-		cachesondisk: cachesondisk,
-		dagdir:       dagdir,
-		dagsinmem:    dagsinmem,
-		dagsondisk:   dagsondisk,
 		caches:   make(map[uint64]*cache),
 		datasets: make(map[uint64]*dataset),
 		update:   make(chan struct{}),
@@ -382,10 +391,12 @@ func New(cachedir string, cachesinmem, cachesondisk int, dagdir string, dagsinme
 // purposes.
 func NewTester() *Ethash {
 	return &Ethash{
-		cachesinmem: 1,
+		config: Config{
+			CachesInMem: 1,
+			PowMode:     ModeTest,
+		},
 		caches:   make(map[uint64]*cache),
 		datasets: make(map[uint64]*dataset),
-		tester:      true,
 		update:   make(chan struct{}),
 		hashrate: metrics.NewMeter(),
 	}
@@ -395,27 +406,45 @@ func NewTester() *Ethash {
 // all blocks' seal as valid, though they still have to conform to the Ethereum
 // consensus rules.
 func NewFaker() *Ethash {
-	return &Ethash{fakeMode: true}
+	return &Ethash{
+		config: Config{
+			PowMode: ModeFake,
+		},
+	}
 }
 
 // NewFakeFailer creates a ethash consensus engine with a fake PoW scheme that
 // accepts all blocks as valid apart from the single one specified, though they
 // still have to conform to the Ethereum consensus rules.
 func NewFakeFailer(fail uint64) *Ethash {
-	return &Ethash{fakeMode: true, fakeFail: fail}
+	return &Ethash{
+		config: Config{
+			PowMode: ModeFake,
+		},
+		fakeFail: fail,
+	}
 }
 
 // NewFakeDelayer creates a ethash consensus engine with a fake PoW scheme that
 // accepts all blocks as valid, but delays verifications by some time, though
 // they still have to conform to the Ethereum consensus rules.
 func NewFakeDelayer(delay time.Duration) *Ethash {
-	return &Ethash{fakeMode: true, fakeDelay: delay}
+	return &Ethash{
+		config: Config{
+			PowMode: ModeFake,
+		},
+		fakeDelay: delay,
+	}
 }
 
 // NewFullFaker creates an ethash consensus engine with a full fake scheme that
 // accepts all blocks as valid, without checking any consensus rules whatsoever.
 func NewFullFaker() *Ethash {
-	return &Ethash{fakeMode: true, fakeFull: true}
+	return &Ethash{
+		config: Config{
+			PowMode: ModeFullFake,
+		},
+	}
 }
 
 // NewShared creates a full sized ethash PoW shared between all requesters running
@@ -436,7 +465,7 @@ func (ethash *Ethash) cache(block uint64) []uint32 {
 	current, future := ethash.caches[epoch], (*cache)(nil)
 	if current == nil {
 		// No in-memory cache, evict the oldest if the cache limit was reached
-		for len(ethash.caches) > 0 && len(ethash.caches) >= ethash.cachesinmem {
+		for len(ethash.caches) > 0 && len(ethash.caches) >= ethash.config.CachesInMem {
 			var evict *cache
 			for _, cache := range ethash.caches {
 				if evict == nil || evict.used.After(cache.used) {
@@ -473,7 +502,7 @@ func (ethash *Ethash) cache(block uint64) []uint32 {
 	ethash.lock.Unlock()
 
 	// Wait for generation finish, bump the timestamp and finalize the cache
-	current.generate(ethash.cachedir, ethash.cachesondisk, ethash.tester)
+	current.generate(ethash.config.CacheDir, ethash.config.CachesOnDisk, ethash.config.PowMode == ModeTest)
 
 	current.lock.Lock()
 	current.used = time.Now()
@@ -481,7 +510,7 @@ func (ethash *Ethash) cache(block uint64) []uint32 {
 
 	// If we exhausted the future cache, now's a good time to regenerate it
 	if future != nil {
-		go future.generate(ethash.cachedir, ethash.cachesondisk, ethash.tester)
+		go future.generate(ethash.config.CacheDir, ethash.config.CachesOnDisk, ethash.config.PowMode == ModeTest)
 	}
 	return current.cache
 }
@@ -498,7 +527,7 @@ func (ethash *Ethash) dataset(block uint64) []uint32 {
 	current, future := ethash.datasets[epoch], (*dataset)(nil)
 	if current == nil {
 		// No in-memory dataset, evict the oldest if the dataset limit was reached
-		for len(ethash.datasets) > 0 && len(ethash.datasets) >= ethash.dagsinmem {
+		for len(ethash.datasets) > 0 && len(ethash.datasets) >= ethash.config.DatasetsInMem {
 			var evict *dataset
 			for _, dataset := range ethash.datasets {
 				if evict == nil || evict.used.After(dataset.used) {
@@ -536,7 +565,7 @@ func (ethash *Ethash) dataset(block uint64) []uint32 {
 	ethash.lock.Unlock()
 
 	// Wait for generation finish, bump the timestamp and finalize the cache
-	current.generate(ethash.dagdir, ethash.dagsondisk, ethash.tester)
+	current.generate(ethash.config.DatasetDir, ethash.config.DatasetsOnDisk, ethash.config.PowMode == ModeTest)
 
 	current.lock.Lock()
 	current.used = time.Now()
@@ -544,7 +573,7 @@ func (ethash *Ethash) dataset(block uint64) []uint32 {
 
 	// If we exhausted the future dataset, now's a good time to regenerate it
 	if future != nil {
-		go future.generate(ethash.dagdir, ethash.dagsondisk, ethash.tester)
+		go future.generate(ethash.config.DatasetDir, ethash.config.DatasetsOnDisk, ethash.config.PowMode == ModeTest)
 	}
 	return current.dataset
 }

consensus/ethash/sealer.go

@@ -34,7 +34,7 @@ import (
 // the block's difficulty requirements.
 func (ethash *Ethash) Seal(chain consensus.ChainReader, block *types.Block, stop <-chan struct{}) (*types.Block, error) {
 	// If we're running a fake PoW, simply return a 0 nonce immediately
-	if ethash.fakeMode {
+	if ethash.config.PowMode == ModeFake || ethash.config.PowMode == ModeFullFake {
 		header := block.Header()
 		header.Nonce, header.MixDigest = types.BlockNonce{}, common.Hash{}
 		return block.WithSeal(header), nil

console/console.go

@@ -47,7 +47,7 @@ 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
+// Config is the 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
@@ -238,7 +238,7 @@ func (c *Console) AutoCompleteInput(line string, pos int) (string, []string, str
 	// E.g. in case of nested lines eth.getBalance(eth.coinb<tab><tab>
 	start := pos - 1
 	for ; start > 0; start-- {
-		// Skip all methods and namespaces (i.e. including te dot)
+		// Skip all methods and namespaces (i.e. including the dot)
 		if line[start] == '.' || (line[start] >= 'a' && line[start] <= 'z') || (line[start] >= 'A' && line[start] <= 'Z') {
 			continue
 		}

console/console_test.go

@@ -27,6 +27,7 @@ import (
 	"time"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/consensus/ethash"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/eth"
 	"github.com/ethereum/go-ethereum/internal/jsre"
@@ -96,7 +97,9 @@ func newTester(t *testing.T, confOverride func(*eth.Config)) *tester {
 	ethConf := &eth.Config{
 		Genesis:   core.DeveloperGenesisBlock(15, common.Address{}),
 		Etherbase: common.HexToAddress(testAddress),
-		PowTest:   true,
+		Ethash: ethash.Config{
+			PowMode: ethash.ModeTest,
+		},
 	}
 	if confOverride != nil {
 		confOverride(ethConf)

contracts/chequebook/contract/chequebook.sol

@@ -1,7 +1,9 @@
-import "mortal";
+pragma solidity ^0.4.18;
+
+import "https://github.com/ethereum/solidity/std/mortal.sol";
 
 /// @title Chequebook for Ethereum micropayments
-/// @author Daniel A. Nagy <daniel@ethdev.com>
+/// @author Daniel A. Nagy <daniel@ethereum.org>
 contract chequebook is mortal {
     // Cumulative paid amount in wei to each beneficiary
     mapping (address => uint256) public sent;
@@ -21,26 +23,23 @@ contract chequebook is mortal {
         uint8 sig_v, bytes32 sig_r, bytes32 sig_s) {
         // Check if the cheque is old.
         // Only cheques that are more recent than the last cashed one are considered.
-        if(amount <= sent[beneficiary]) return;
+        require(amount > sent[beneficiary]);
         // Check the digital signature of the cheque.
-        bytes32 hash = sha3(address(this), beneficiary, amount);
+        bytes32 hash = keccak256(address(this), beneficiary, amount);
-        if(owner != ecrecover(hash, sig_v, sig_r, sig_s)) return;
+        require(owner == ecrecover(hash, sig_v, sig_r, sig_s));
         // Attempt sending the difference between the cumulative amount on the cheque
         // and the cumulative amount on the last cashed cheque to beneficiary.
         uint256 diff = amount - sent[beneficiary];
         if (diff <= this.balance) {
 	    // update the cumulative amount before sending
             sent[beneficiary] = amount;
-            if (!beneficiary.send(diff)) {
+            beneficiary.transfer(diff);
-                // Upon failure to execute send, revert everything
-                throw;
-            }
         } else {
             // Upon failure, punish owner for writing a bounced cheque.
             // owner.sendToDebtorsPrison();
             Overdraft(owner);
             // Compensate beneficiary.
-            suicide(beneficiary);
+            selfdestruct(beneficiary);
         }
     }
 }

contracts/release/contract.sol

@@ -77,7 +77,7 @@ contract ReleaseOracle {
     }
   }
 
-  // signers is an accessor method to retrieve all te signers (public accessor
+  // signers is an accessor method to retrieve all the signers (public accessor
   // generates an indexed one, not a retrieve-all version).
   function signers() constant returns(address[]) {
     return voters;

core/blockchain.go

@@ -818,7 +818,12 @@ func (bc *BlockChain) WriteBlockAndState(block *types.Block, receipts []*types.R
 	// If the total difficulty is higher than our known, add it to the canonical chain
 	// Second clause in the if statement reduces the vulnerability to selfish mining.
 	// Please refer to http://www.cs.cornell.edu/~ie53/publications/btcProcFC.pdf
-	if externTd.Cmp(localTd) > 0 || (externTd.Cmp(localTd) == 0 && mrand.Float64() < 0.5) {
+	reorg := externTd.Cmp(localTd) > 0
+	if !reorg && externTd.Cmp(localTd) == 0 {
+		// Split same-difficulty blocks by number, then at random
+		reorg = block.NumberU64() < bc.currentBlock.NumberU64() || (block.NumberU64() == bc.currentBlock.NumberU64() && mrand.Float64() < 0.5)
+	}
+	if reorg {
 		// Reorganise the chain if the parent is not the head block
 		if block.ParentHash() != bc.currentBlock.Hash() {
 			if err := bc.reorg(bc.currentBlock, block); err != nil {

core/bloombits/matcher.go

@@ -192,10 +192,12 @@ func (m *Matcher) Start(ctx context.Context, begin, end uint64, results chan uin
 				}
 				// Iterate over all the blocks in the section and return the matching ones
 				for i := first; i <= last; i++ {
-					// Skip the entire byte if no matches are found inside
+					// Skip the entire byte if no matches are found inside (and we're processing an entire byte!)
 					next := res.bitset[(i-sectionStart)/8]
 					if next == 0 {
+						if i%8 == 0 {
 							i += 7
+						}
 						continue
 					}
 					// Some bit it set, do the actual submatching
@@ -534,7 +536,10 @@ func (s *MatcherSession) Close() {
 
 // Error returns any failure encountered during the matching session.
 func (s *MatcherSession) Error() error {
-	return s.err.Load().(error)
+	if err := s.err.Load(); err != nil {
+		return err.(error)
+	}
+	return nil
 }
 
 // AllocateRetrieval assigns a bloom bit index to a client process that can either

core/bloombits/matcher_test.go

@@ -31,13 +31,13 @@ const testSectionSize = 4096
 // Tests that wildcard filter rules (nil) can be specified and are handled well.
 func TestMatcherWildcards(t *testing.T) {
 	matcher := NewMatcher(testSectionSize, [][][]byte{
-		[][]byte{common.Address{}.Bytes(), common.Address{0x01}.Bytes()}, // Default address is not a wildcard
+		{common.Address{}.Bytes(), common.Address{0x01}.Bytes()}, // Default address is not a wildcard
-		[][]byte{common.Hash{}.Bytes(), common.Hash{0x01}.Bytes()},       // Default hash is not a wildcard
+		{common.Hash{}.Bytes(), common.Hash{0x01}.Bytes()},       // Default hash is not a wildcard
-		[][]byte{common.Hash{0x01}.Bytes()},                              // Plain rule, sanity check
+		{common.Hash{0x01}.Bytes()},                              // Plain rule, sanity check
-		[][]byte{common.Hash{0x01}.Bytes(), nil},                         // Wildcard suffix, drop rule
+		{common.Hash{0x01}.Bytes(), nil},                         // Wildcard suffix, drop rule
-		[][]byte{nil, common.Hash{0x01}.Bytes()},                         // Wildcard prefix, drop rule
+		{nil, common.Hash{0x01}.Bytes()},                         // Wildcard prefix, drop rule
-		[][]byte{nil, nil},                                               // Wildcard combo, drop rule
+		{nil, nil},                                               // Wildcard combo, drop rule
-		[][]byte{},                                                       // Inited wildcard rule, drop rule
+		{},                                                       // Inited wildcard rule, drop rule
 		nil,                                                      // Proper wildcard rule, drop rule
 	})
 	if len(matcher.filters) != 3 {
@@ -56,33 +56,48 @@ func TestMatcherWildcards(t *testing.T) {
 
 // Tests the matcher pipeline on a single continuous workflow without interrupts.
 func TestMatcherContinuous(t *testing.T) {
-	testMatcherDiffBatches(t, [][]bloomIndexes{{{10, 20, 30}}}, 100000, false, 75)
+	testMatcherDiffBatches(t, [][]bloomIndexes{{{10, 20, 30}}}, 0, 100000, false, 75)
-	testMatcherDiffBatches(t, [][]bloomIndexes{{{32, 3125, 100}}, {{40, 50, 10}}}, 100000, false, 81)
+	testMatcherDiffBatches(t, [][]bloomIndexes{{{32, 3125, 100}}, {{40, 50, 10}}}, 0, 100000, false, 81)
-	testMatcherDiffBatches(t, [][]bloomIndexes{{{4, 8, 11}, {7, 8, 17}}, {{9, 9, 12}, {15, 20, 13}}, {{18, 15, 15}, {12, 10, 4}}}, 10000, false, 36)
+	testMatcherDiffBatches(t, [][]bloomIndexes{{{4, 8, 11}, {7, 8, 17}}, {{9, 9, 12}, {15, 20, 13}}, {{18, 15, 15}, {12, 10, 4}}}, 0, 10000, false, 36)
 }
 
 // Tests the matcher pipeline on a constantly interrupted and resumed work pattern
 // with the aim of ensuring data items are requested only once.
 func TestMatcherIntermittent(t *testing.T) {
-	testMatcherDiffBatches(t, [][]bloomIndexes{{{10, 20, 30}}}, 100000, true, 75)
+	testMatcherDiffBatches(t, [][]bloomIndexes{{{10, 20, 30}}}, 0, 100000, true, 75)
-	testMatcherDiffBatches(t, [][]bloomIndexes{{{32, 3125, 100}}, {{40, 50, 10}}}, 100000, true, 81)
+	testMatcherDiffBatches(t, [][]bloomIndexes{{{32, 3125, 100}}, {{40, 50, 10}}}, 0, 100000, true, 81)
-	testMatcherDiffBatches(t, [][]bloomIndexes{{{4, 8, 11}, {7, 8, 17}}, {{9, 9, 12}, {15, 20, 13}}, {{18, 15, 15}, {12, 10, 4}}}, 10000, true, 36)
+	testMatcherDiffBatches(t, [][]bloomIndexes{{{4, 8, 11}, {7, 8, 17}}, {{9, 9, 12}, {15, 20, 13}}, {{18, 15, 15}, {12, 10, 4}}}, 0, 10000, true, 36)
 }
 
 // Tests the matcher pipeline on random input to hopefully catch anomalies.
 func TestMatcherRandom(t *testing.T) {
 	for i := 0; i < 10; i++ {
-		testMatcherBothModes(t, makeRandomIndexes([]int{1}, 50), 10000, 0)
+		testMatcherBothModes(t, makeRandomIndexes([]int{1}, 50), 0, 10000, 0)
-		testMatcherBothModes(t, makeRandomIndexes([]int{3}, 50), 10000, 0)
+		testMatcherBothModes(t, makeRandomIndexes([]int{3}, 50), 0, 10000, 0)
-		testMatcherBothModes(t, makeRandomIndexes([]int{2, 2, 2}, 20), 10000, 0)
+		testMatcherBothModes(t, makeRandomIndexes([]int{2, 2, 2}, 20), 0, 10000, 0)
-		testMatcherBothModes(t, makeRandomIndexes([]int{5, 5, 5}, 50), 10000, 0)
+		testMatcherBothModes(t, makeRandomIndexes([]int{5, 5, 5}, 50), 0, 10000, 0)
-		testMatcherBothModes(t, makeRandomIndexes([]int{4, 4, 4}, 20), 10000, 0)
+		testMatcherBothModes(t, makeRandomIndexes([]int{4, 4, 4}, 20), 0, 10000, 0)
 	}
 }
 
+// Tests that the matcher can properly find matches if the starting block is
+// shifter from a multiple of 8. This is needed to cover an optimisation with
+// bitset matching https://github.com/ethereum/go-ethereum/issues/15309.
+func TestMatcherShifted(t *testing.T) {
+	// Block 0 always matches in the tests, skip ahead of first 8 blocks with the
+	// start to get a potential zero byte in the matcher bitset.
+
+	// To keep the second bitset byte zero, the filter must only match for the first
+	// time in block 16, so doing an all-16 bit filter should suffice.
+
+	// To keep the starting block non divisible by 8, block number 9 is the first
+	// that would introduce a shift and not match block 0.
+	testMatcherBothModes(t, [][]bloomIndexes{{{16, 16, 16}}}, 9, 64, 0)
+}
+
 // Tests that matching on everything doesn't crash (special case internally).
 func TestWildcardMatcher(t *testing.T) {
-	testMatcherBothModes(t, nil, 10000, 0)
+	testMatcherBothModes(t, nil, 0, 10000, 0)
 }
 
 // makeRandomIndexes generates a random filter system, composed on multiple filter
@@ -104,9 +119,9 @@ func makeRandomIndexes(lengths []int, max int) [][]bloomIndexes {
 // testMatcherDiffBatches runs the given matches test in single-delivery and also
 // in batches delivery mode, verifying that all kinds of deliveries are handled
 // correctly withn.
-func testMatcherDiffBatches(t *testing.T, filter [][]bloomIndexes, blocks uint64, intermittent bool, retrievals uint32) {
+func testMatcherDiffBatches(t *testing.T, filter [][]bloomIndexes, start, blocks uint64, intermittent bool, retrievals uint32) {
-	singleton := testMatcher(t, filter, blocks, intermittent, retrievals, 1)
+	singleton := testMatcher(t, filter, start, blocks, intermittent, retrievals, 1)
-	batched := testMatcher(t, filter, blocks, intermittent, retrievals, 16)
+	batched := testMatcher(t, filter, start, blocks, intermittent, retrievals, 16)
 
 	if singleton != batched {
 		t.Errorf("filter = %v blocks = %v intermittent = %v: request count mismatch, %v in signleton vs. %v in batched mode", filter, blocks, intermittent, singleton, batched)
@@ -115,9 +130,9 @@ func testMatcherDiffBatches(t *testing.T, filter [][]bloomIndexes, blocks uint64
 
 // testMatcherBothModes runs the given matcher test in both continuous as well as
 // in intermittent mode, verifying that the request counts match each other.
-func testMatcherBothModes(t *testing.T, filter [][]bloomIndexes, blocks uint64, retrievals uint32) {
+func testMatcherBothModes(t *testing.T, filter [][]bloomIndexes, start, blocks uint64, retrievals uint32) {
-	continuous := testMatcher(t, filter, blocks, false, retrievals, 16)
+	continuous := testMatcher(t, filter, start, blocks, false, retrievals, 16)
-	intermittent := testMatcher(t, filter, blocks, true, retrievals, 16)
+	intermittent := testMatcher(t, filter, start, blocks, true, retrievals, 16)
 
 	if continuous != intermittent {
 		t.Errorf("filter = %v blocks = %v: request count mismatch, %v in continuous vs. %v in intermittent mode", filter, blocks, continuous, intermittent)
@@ -126,7 +141,7 @@ func testMatcherBothModes(t *testing.T, filter [][]bloomIndexes, blocks uint64,
 
 // testMatcher is a generic tester to run the given matcher test and return the
 // number of requests made for cross validation between different modes.
-func testMatcher(t *testing.T, filter [][]bloomIndexes, blocks uint64, intermittent bool, retrievals uint32, maxReqCount int) uint32 {
+func testMatcher(t *testing.T, filter [][]bloomIndexes, start, blocks uint64, intermittent bool, retrievals uint32, maxReqCount int) uint32 {
 	// Create a new matcher an simulate our explicit random bitsets
 	matcher := NewMatcher(testSectionSize, nil)
 	matcher.filters = filter
@@ -145,14 +160,14 @@ func testMatcher(t *testing.T, filter [][]bloomIndexes, blocks uint64, intermitt
 	quit := make(chan struct{})
 	matches := make(chan uint64, 16)
 
-	session, err := matcher.Start(context.Background(), 0, blocks-1, matches)
+	session, err := matcher.Start(context.Background(), start, blocks-1, matches)
 	if err != nil {
 		t.Fatalf("failed to stat matcher session: %v", err)
 	}
 	startRetrievers(session, quit, &requested, maxReqCount)
 
 	// Iterate over all the blocks and verify that the pipeline produces the correct matches
-	for i := uint64(0); i < blocks; i++ {
+	for i := start; i < blocks; i++ {
 		if expMatch3(filter, i) {
 			match, ok := <-matches
 			if !ok {

core/bloombits/scheduler_test.go

@@ -60,7 +60,7 @@ func testScheduler(t *testing.T, clients int, fetchers int, requests int) {
 					req.section,                    // Requested data
 					req.section,                    // Duplicated data (ensure it doesn't double close anything)
 				}, [][]byte{
-					[]byte{},
+					{},
 					new(big.Int).SetUint64(req.section).Bytes(),
 					new(big.Int).SetUint64(req.section).Bytes(),
 				})

core/chain_indexer.go

@@ -230,7 +230,7 @@ func (c *ChainIndexer) newHead(head uint64, reorg bool) {
 		if changed < c.storedSections {
 			c.setValidSections(changed)
 		}
-		// Update the new head number to te finalized section end and notify children
+		// Update the new head number to the finalized section end and notify children
 		head = changed * c.sectionSize
 
 		if head < c.cascadedHead {

core/genesis.go

@@ -356,15 +356,15 @@ func DeveloperGenesisBlock(period uint64, faucet common.Address) *Genesis {
 		GasLimit:   6283185,
 		Difficulty: big.NewInt(1),
 		Alloc: map[common.Address]GenesisAccount{
-			common.BytesToAddress([]byte{1}): GenesisAccount{Balance: big.NewInt(1)}, // ECRecover
+			common.BytesToAddress([]byte{1}): {Balance: big.NewInt(1)}, // ECRecover
-			common.BytesToAddress([]byte{2}): GenesisAccount{Balance: big.NewInt(1)}, // SHA256
+			common.BytesToAddress([]byte{2}): {Balance: big.NewInt(1)}, // SHA256
-			common.BytesToAddress([]byte{3}): GenesisAccount{Balance: big.NewInt(1)}, // RIPEMD
+			common.BytesToAddress([]byte{3}): {Balance: big.NewInt(1)}, // RIPEMD
-			common.BytesToAddress([]byte{4}): GenesisAccount{Balance: big.NewInt(1)}, // Identity
+			common.BytesToAddress([]byte{4}): {Balance: big.NewInt(1)}, // Identity
-			common.BytesToAddress([]byte{5}): GenesisAccount{Balance: big.NewInt(1)}, // ModExp
+			common.BytesToAddress([]byte{5}): {Balance: big.NewInt(1)}, // ModExp
-			common.BytesToAddress([]byte{6}): GenesisAccount{Balance: big.NewInt(1)}, // ECAdd
+			common.BytesToAddress([]byte{6}): {Balance: big.NewInt(1)}, // ECAdd
-			common.BytesToAddress([]byte{7}): GenesisAccount{Balance: big.NewInt(1)}, // ECScalarMul
+			common.BytesToAddress([]byte{7}): {Balance: big.NewInt(1)}, // ECScalarMul
-			common.BytesToAddress([]byte{8}): GenesisAccount{Balance: big.NewInt(1)}, // ECPairing
+			common.BytesToAddress([]byte{8}): {Balance: big.NewInt(1)}, // ECPairing
-			faucet: GenesisAccount{Balance: new(big.Int).Sub(new(big.Int).Lsh(big.NewInt(1), 256), big.NewInt(9))},
+			faucet: {Balance: new(big.Int).Sub(new(big.Int).Lsh(big.NewInt(1), 256), big.NewInt(9))},
 		},
 	}
 }

core/state/statedb.go

@@ -453,7 +453,7 @@ func (self *StateDB) Copy() *StateDB {
 	// Copy all the basic fields, initialize the memory ones
 	state := &StateDB{
 		db:                self.db,
-		trie:              self.trie,
+		trie:              self.db.CopyTrie(self.trie),
 		stateObjects:      make(map[common.Address]*stateObject, len(self.stateObjectsDirty)),
 		stateObjectsDirty: make(map[common.Address]struct{}, len(self.stateObjectsDirty)),
 		refund:            new(big.Int).Set(self.refund),

core/state/statedb_test.go

@@ -117,6 +117,57 @@ func TestIntermediateLeaks(t *testing.T) {
 	}
 }
 
+// TestCopy tests that copying a statedb object indeed makes the original and
+// the copy independent of each other. This test is a regression test against
+// https://github.com/ethereum/go-ethereum/pull/15549.
+func TestCopy(t *testing.T) {
+	// Create a random state test to copy and modify "independently"
+	mem, _ := ethdb.NewMemDatabase()
+	orig, _ := New(common.Hash{}, NewDatabase(mem))
+
+	for i := byte(0); i < 255; i++ {
+		obj := orig.GetOrNewStateObject(common.BytesToAddress([]byte{i}))
+		obj.AddBalance(big.NewInt(int64(i)))
+		orig.updateStateObject(obj)
+	}
+	orig.Finalise(false)
+
+	// Copy the state, modify both in-memory
+	copy := orig.Copy()
+
+	for i := byte(0); i < 255; i++ {
+		origObj := orig.GetOrNewStateObject(common.BytesToAddress([]byte{i}))
+		copyObj := copy.GetOrNewStateObject(common.BytesToAddress([]byte{i}))
+
+		origObj.AddBalance(big.NewInt(2 * int64(i)))
+		copyObj.AddBalance(big.NewInt(3 * int64(i)))
+
+		orig.updateStateObject(origObj)
+		copy.updateStateObject(copyObj)
+	}
+	// Finalise the changes on both concurrently
+	done := make(chan struct{})
+	go func() {
+		orig.Finalise(true)
+		close(done)
+	}()
+	copy.Finalise(true)
+	<-done
+
+	// Verify that the two states have been updated independently
+	for i := byte(0); i < 255; i++ {
+		origObj := orig.GetOrNewStateObject(common.BytesToAddress([]byte{i}))
+		copyObj := copy.GetOrNewStateObject(common.BytesToAddress([]byte{i}))
+
+		if want := big.NewInt(3 * int64(i)); origObj.Balance().Cmp(want) != 0 {
+			t.Errorf("orig obj %d: balance mismatch: have %v, want %v", i, origObj.Balance(), want)
+		}
+		if want := big.NewInt(4 * int64(i)); copyObj.Balance().Cmp(want) != 0 {
+			t.Errorf("copy obj %d: balance mismatch: have %v, want %v", i, copyObj.Balance(), want)
+		}
+	}
+}
+
 func TestSnapshotRandom(t *testing.T) {
 	config := &quick.Config{MaxCount: 1000}
 	err := quick.Check((*snapshotTest).run, config)

core/tx_journal.go

@@ -68,7 +68,7 @@ func (journal *txJournal) load(add func(*types.Transaction) error) error {
 	}
 	defer input.Close()
 
-	// Temporarilly discard any journal additions (don't double add on load)
+	// Temporarily discard any journal additions (don't double add on load)
 	journal.writer = new(devNull)
 	defer func() { journal.writer = nil }()
 

core/tx_list.go

@@ -254,7 +254,10 @@ func (l *txList) Add(tx *types.Transaction, priceBump uint64) (bool, *types.Tran
 	old := l.txs.Get(tx.Nonce())
 	if old != nil {
 		threshold := new(big.Int).Div(new(big.Int).Mul(old.GasPrice(), big.NewInt(100+int64(priceBump))), big.NewInt(100))
-		if threshold.Cmp(tx.GasPrice()) >= 0 {
+		// Have to ensure that the new gas price is higher than the old gas
+		// price as well as checking the percentage threshold to ensure that
+		// this is accurate for low (Wei-level) gas price replacements
+		if old.GasPrice().Cmp(tx.GasPrice()) >= 0 || threshold.Cmp(tx.GasPrice()) > 0 {
 			return false, nil
 		}
 	}

core/tx_pool.go

@@ -820,7 +820,7 @@ func (pool *TxPool) addTxsLocked(txs []*types.Transaction, local bool) []error {
 	// Only reprocess the internal state if something was actually added
 	if len(dirty) > 0 {
 		addrs := make([]common.Address, 0, len(dirty))
-		for addr, _ := range dirty {
+		for addr := range dirty {
 			addrs = append(addrs, addr)
 		}
 		pool.promoteExecutables(addrs)
@@ -907,7 +907,7 @@ func (pool *TxPool) promoteExecutables(accounts []common.Address) {
 	// Gather all the accounts potentially needing updates
 	if accounts == nil {
 		accounts = make([]common.Address, 0, len(pool.queue))
-		for addr, _ := range pool.queue {
+		for addr := range pool.queue {
 			accounts = append(accounts, addr)
 		}
 	}

core/tx_pool_test.go

@@ -105,7 +105,7 @@ func validateTxPoolInternals(pool *TxPool) error {
 	for addr, txs := range pool.pending {
 		// Find the last transaction
 		var last uint64
-		for nonce, _ := range txs.txs.items {
+		for nonce := range txs.txs.items {
 			if last < nonce {
 				last = nonce
 			}
@@ -1266,7 +1266,7 @@ func TestTransactionPoolRepricingKeepsLocals(t *testing.T) {
 
 // Tests that when the pool reaches its global transaction limit, underpriced
 // transactions are gradually shifted out for more expensive ones and any gapped
-// pending transactions are moved into te queue.
+// pending transactions are moved into the queue.
 //
 // Note, local transactions are never allowed to be dropped.
 func TestTransactionPoolUnderpricing(t *testing.T) {
@@ -1411,10 +1411,10 @@ func TestTransactionReplacement(t *testing.T) {
 	if err := pool.AddRemote(pricedTransaction(0, big.NewInt(100000), big.NewInt(price), key)); err != nil {
 		t.Fatalf("failed to add original proper pending transaction: %v", err)
 	}
-	if err := pool.AddRemote(pricedTransaction(0, big.NewInt(100000), big.NewInt(threshold), key)); err != ErrReplaceUnderpriced {
+	if err := pool.AddRemote(pricedTransaction(0, big.NewInt(100001), big.NewInt(threshold-1), key)); err != ErrReplaceUnderpriced {
 		t.Fatalf("original proper pending transaction replacement error mismatch: have %v, want %v", err, ErrReplaceUnderpriced)
 	}
-	if err := pool.AddRemote(pricedTransaction(0, big.NewInt(100000), big.NewInt(threshold+1), key)); err != nil {
+	if err := pool.AddRemote(pricedTransaction(0, big.NewInt(100000), big.NewInt(threshold), key)); err != nil {
 		t.Fatalf("failed to replace original proper pending transaction: %v", err)
 	}
 	if err := validateEvents(events, 2); err != nil {
@@ -1422,23 +1422,23 @@ func TestTransactionReplacement(t *testing.T) {
 	}
 	// Add queued transactions, ensuring the minimum price bump is enforced for replacement (for ultra low prices too)
 	if err := pool.AddRemote(pricedTransaction(2, big.NewInt(100000), big.NewInt(1), key)); err != nil {
-		t.Fatalf("failed to add original queued transaction: %v", err)
+		t.Fatalf("failed to add original cheap queued transaction: %v", err)
 	}
 	if err := pool.AddRemote(pricedTransaction(2, big.NewInt(100001), big.NewInt(1), key)); err != ErrReplaceUnderpriced {
-		t.Fatalf("original queued transaction replacement error mismatch: have %v, want %v", err, ErrReplaceUnderpriced)
+		t.Fatalf("original cheap queued transaction replacement error mismatch: have %v, want %v", err, ErrReplaceUnderpriced)
 	}
 	if err := pool.AddRemote(pricedTransaction(2, big.NewInt(100000), big.NewInt(2), key)); err != nil {
-		t.Fatalf("failed to replace original queued transaction: %v", err)
+		t.Fatalf("failed to replace original cheap queued transaction: %v", err)
 	}
 
 	if err := pool.AddRemote(pricedTransaction(2, big.NewInt(100000), big.NewInt(price), key)); err != nil {
-		t.Fatalf("failed to add original queued transaction: %v", err)
+		t.Fatalf("failed to add original proper queued transaction: %v", err)
 	}
-	if err := pool.AddRemote(pricedTransaction(2, big.NewInt(100001), big.NewInt(threshold), key)); err != ErrReplaceUnderpriced {
+	if err := pool.AddRemote(pricedTransaction(2, big.NewInt(100001), big.NewInt(threshold-1), key)); err != ErrReplaceUnderpriced {
-		t.Fatalf("original queued transaction replacement error mismatch: have %v, want %v", err, ErrReplaceUnderpriced)
+		t.Fatalf("original proper queued transaction replacement error mismatch: have %v, want %v", err, ErrReplaceUnderpriced)
 	}
-	if err := pool.AddRemote(pricedTransaction(2, big.NewInt(100000), big.NewInt(threshold+1), key)); err != nil {
+	if err := pool.AddRemote(pricedTransaction(2, big.NewInt(100000), big.NewInt(threshold), key)); err != nil {
-		t.Fatalf("failed to replace original queued transaction: %v", err)
+		t.Fatalf("failed to replace original proper queued transaction: %v", err)
 	}
 
 	if err := validateEvents(events, 0); err != nil {

core/vm/analysis.go

@@ -25,7 +25,7 @@ import (
 // destinations stores one map per contract (keyed by hash of code).
 // The maps contain an entry for each location of a JUMPDEST
 // instruction.
-type destinations map[common.Hash][]byte
+type destinations map[common.Hash]bitvec
 
 // has checks whether code has a JUMPDEST at dest.
 func (d destinations) has(codehash common.Hash, code []byte, dest *big.Int) bool {
@@ -38,24 +38,53 @@ func (d destinations) has(codehash common.Hash, code []byte, dest *big.Int) bool
 
 	m, analysed := d[codehash]
 	if !analysed {
-		m = jumpdests(code)
+		m = codeBitmap(code)
 		d[codehash] = m
 	}
-	return (m[udest/8] & (1 << (udest % 8))) != 0
+	return OpCode(code[udest]) == JUMPDEST && m.codeSegment(udest)
 }
 
-// jumpdests creates a map that contains an entry for each
+// bitvec is a bit vector which maps bytes in a program.
-// PC location that is a JUMPDEST instruction.
+// An unset bit means the byte is an opcode, a set bit means
-func jumpdests(code []byte) []byte {
+// it's data (i.e. argument of PUSHxx).
-	m := make([]byte, len(code)/8+1)
+type bitvec []byte
-	for pc := uint64(0); pc < uint64(len(code)); pc++ {
+
+func (bits *bitvec) set(pos uint64) {
+	(*bits)[pos/8] |= 0x80 >> (pos % 8)
+}
+func (bits *bitvec) set8(pos uint64) {
+	(*bits)[pos/8] |= 0xFF >> (pos % 8)
+	(*bits)[pos/8+1] |= ^(0xFF >> (pos % 8))
+}
+
+// codeSegment checks if the position is in a code segment.
+func (bits *bitvec) codeSegment(pos uint64) bool {
+	return ((*bits)[pos/8] & (0x80 >> (pos % 8))) == 0
+}
+
+// codeBitmap collects data locations in code.
+func codeBitmap(code []byte) bitvec {
+	// The bitmap is 4 bytes longer than necessary, in case the code
+	// ends with a PUSH32, the algorithm will push zeroes onto the
+	// bitvector outside the bounds of the actual code.
+	bits := make(bitvec, len(code)/8+1+4)
+	for pc := uint64(0); pc < uint64(len(code)); {
 		op := OpCode(code[pc])
-		if op == JUMPDEST {
+
-			m[pc/8] |= 1 << (pc % 8)
+		if op >= PUSH1 && op <= PUSH32 {
-		} else if op >= PUSH1 && op <= PUSH32 {
+			numbits := op - PUSH1 + 1
-			a := uint64(op) - uint64(PUSH1) + 1
+			pc++
-			pc += a
+			for ; numbits >= 8; numbits -= 8 {
+				bits.set8(pc) // 8
+				pc += 8
+			}
+			for ; numbits > 0; numbits-- {
+				bits.set(pc)
+				pc++
+			}
+		} else {
+			pc++
 		}
 	}
-	return m
+	return bits
 }

core/vm/analysis_test.go

@@ -0,0 +1,53 @@
+// Copyright 2017 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 <http://www.gnu.org/licenses/>.
+
+package vm
+
+import "testing"
+
+func TestJumpDestAnalysis(t *testing.T) {
+	tests := []struct {
+		code  []byte
+		exp   byte
+		which int
+	}{
+		{[]byte{byte(PUSH1), 0x01, 0x01, 0x01}, 0x40, 0},
+		{[]byte{byte(PUSH1), byte(PUSH1), byte(PUSH1), byte(PUSH1)}, 0x50, 0},
+		{[]byte{byte(PUSH8), byte(PUSH8), byte(PUSH8), byte(PUSH8), byte(PUSH8), byte(PUSH8), byte(PUSH8), byte(PUSH8), 0x01, 0x01, 0x01}, 0x7F, 0},
+		{[]byte{byte(PUSH8), 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01}, 0x80, 1},
+		{[]byte{0x01, 0x01, 0x01, 0x01, 0x01, byte(PUSH2), byte(PUSH2), byte(PUSH2), 0x01, 0x01, 0x01}, 0x03, 0},
+		{[]byte{0x01, 0x01, 0x01, 0x01, 0x01, byte(PUSH2), 0x01, 0x01, 0x01, 0x01, 0x01}, 0x00, 1},
+		{[]byte{byte(PUSH3), 0x01, 0x01, 0x01, byte(PUSH1), 0x01, 0x01, 0x01, 0x01, 0x01, 0x01}, 0x74, 0},
+		{[]byte{byte(PUSH3), 0x01, 0x01, 0x01, byte(PUSH1), 0x01, 0x01, 0x01, 0x01, 0x01, 0x01}, 0x00, 1},
+		{[]byte{0x01, byte(PUSH8), 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01}, 0x3F, 0},
+		{[]byte{0x01, byte(PUSH8), 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01}, 0xC0, 1},
+		{[]byte{byte(PUSH16), 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01}, 0x7F, 0},
+		{[]byte{byte(PUSH16), 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01}, 0xFF, 1},
+		{[]byte{byte(PUSH16), 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01}, 0x80, 2},
+		{[]byte{byte(PUSH8), 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, byte(PUSH1), 0x01}, 0x7f, 0},
+		{[]byte{byte(PUSH8), 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, byte(PUSH1), 0x01}, 0xA0, 1},
+		{[]byte{byte(PUSH32)}, 0x7F, 0},
+		{[]byte{byte(PUSH32)}, 0xFF, 1},
+		{[]byte{byte(PUSH32)}, 0xFF, 2},
+	}
+	for _, test := range tests {
+		ret := codeBitmap(test.code)
+		if ret[test.which] != test.exp {
+			t.Fatalf("expected %x, got %02x", test.exp, ret[test.which])
+		}
+	}
+
+}

core/vm/interpreter.go

@@ -161,8 +161,8 @@ func (in *Interpreter) Run(snapshot int, contract *Contract, input []byte) (ret
 
 		if in.cfg.Debug {
 			logged = false
-			pcCopy = uint64(pc)
+			pcCopy = pc
-			gasCopy = uint64(contract.Gas)
+			gasCopy = contract.Gas
 			stackCopy = newstack()
 			for _, val := range stack.data {
 				stackCopy.push(val)

core/vm/jump_table.go

@@ -42,12 +42,12 @@ type operation struct {
 	// memorySize returns the memory size required for the operation
 	memorySize memorySizeFunc
 
-	halts   bool // indicates whether the operation shoult halt further execution
+	halts   bool // indicates whether the operation should halt further execution
 	jumps   bool // indicates whether the program counter should not increment
 	writes  bool // determines whether this a state modifying operation
 	valid   bool // indication whether the retrieved operation is valid and known
 	reverts bool // determines whether the operation reverts state (implicitly halts)
-	returns bool // determines whether the opertions sets the return data content
+	returns bool // determines whether the operations sets the return data content
 }
 
 var (

core/vm/logger.go

@@ -45,7 +45,6 @@ type LogConfig struct {
 	DisableMemory  bool // disable memory capture
 	DisableStack   bool // disable stack capture
 	DisableStorage bool // disable storage capture
-	FullStorage    bool // show full storage (slow)
 	Limit          int  // maximum length of output, but zero means unlimited
 }
 
@@ -136,14 +135,13 @@ func (l *StructLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost ui
 		)
 		l.changedValues[contract.Address()][address] = value
 	}
-	// copy a snapstot of the current memory state to a new buffer
+	// Copy a snapstot of the current memory state to a new buffer
 	var mem []byte
 	if !l.cfg.DisableMemory {
 		mem = make([]byte, len(memory.Data()))
 		copy(mem, memory.Data())
 	}
-
+	// Copy a snapshot of the current stack state to a new buffer
-	// copy a snapshot of the current stack state to a new buffer
 	var stck []*big.Int
 	if !l.cfg.DisableStack {
 		stck = make([]*big.Int, len(stack.Data()))
@@ -151,27 +149,11 @@ func (l *StructLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost ui
 			stck[i] = new(big.Int).Set(item)
 		}
 	}
-
+	// Copy a snapshot of the current storage to a new container
-	// Copy the storage based on the settings specified in the log config. If full storage
-	// is disabled (default) we can use the simple Storage.Copy method, otherwise we use
-	// the state object to query for all values (slow process).
 	var storage Storage
 	if !l.cfg.DisableStorage {
-		if l.cfg.FullStorage {
-			storage = make(Storage)
-			// Get the contract account and loop over each storage entry. This may involve looping over
-			// the trie and is a very expensive process.
-
-			env.StateDB.ForEachStorage(contract.Address(), func(key, value common.Hash) bool {
-				storage[key] = value
-				// Return true, indicating we'd like to continue.
-				return true
-			})
-		} else {
-			// copy a snapshot of the current storage to a new container.
 		storage = l.changedValues[contract.Address()].Copy()
 	}
-	}
 	// create a new snaptshot of the EVM.
 	log := StructLog{pc, op, gas, cost, mem, memory.Len(), stck, storage, depth, err}
 

core/vm/logger_test.go

@@ -63,32 +63,8 @@ func TestStoreCapture(t *testing.T) {
 	if len(logger.changedValues[contract.Address()]) == 0 {
 		t.Fatalf("expected exactly 1 changed value on address %x, got %d", contract.Address(), len(logger.changedValues[contract.Address()]))
 	}
-
 	exp := common.BigToHash(big.NewInt(1))
 	if logger.changedValues[contract.Address()][index] != exp {
 		t.Errorf("expected %x, got %x", exp, logger.changedValues[contract.Address()][index])
 	}
 }
-
-func TestStorageCapture(t *testing.T) {
-	t.Skip("implementing this function is difficult. it requires all sort of interfaces to be implemented which isn't trivial. The value (the actual test) isn't worth it")
-	var (
-		ref      = &dummyContractRef{}
-		contract = NewContract(ref, ref, new(big.Int), 0)
-		env      = NewEVM(Context{}, dummyStateDB{ref: ref}, params.TestChainConfig, Config{EnableJit: false, ForceJit: false})
-		logger   = NewStructLogger(nil)
-		mem      = NewMemory()
-		stack    = newstack()
-	)
-
-	logger.CaptureState(env, 0, STOP, 0, 0, mem, stack, contract, 0, nil)
-	if ref.calledForEach {
-		t.Error("didn't expect for each to be called")
-	}
-
-	logger = NewStructLogger(&LogConfig{FullStorage: true})
-	logger.CaptureState(env, 0, STOP, 0, 0, mem, stack, contract, 0, nil)
-	if !ref.calledForEach {
-		t.Error("expected for each to be called")
-	}
-}

dashboard/README.md

@@ -0,0 +1,46 @@
+## Go Ethereum Dashboard
+
+The dashboard is a data visualizer integrated into geth, intended to collect and visualize useful information of an Ethereum node. It consists of two parts:
+
+* The client visualizes the collected data.
+* The server collects the data, and updates the clients.
+
+The client's UI uses [React][React] with JSX syntax, which is validated by the [ESLint][ESLint] linter mostly according to the [Airbnb React/JSX Style Guide][Airbnb]. The style is defined in the `.eslintrc` configuration file. The resources are bundled into a single `bundle.js` file using [Webpack][Webpack], which relies on the `webpack.config.js`. The bundled file is referenced from `dashboard.html` and takes part in the `assets.go` too. The necessary dependencies for the module bundler are gathered by [Node.js][Node.js].
+
+### Development and bundling
+
+As the dashboard depends on certain NPM packages (which are not included in the go-ethereum repo), these need to be installed first:
+
+```
+$ (cd dashboard/assets && npm install)
+```
+
+Normally the dashboard assets are bundled into Geth via `go-bindata` to avoid external dependencies. Rebuilding Geth after each UI modification however is not feasible from a developer perspective. Instead, we can run `webpack` in watch mode to automatically rebundle the UI, and ask `geth` to use external assets to not rely on compiled resources:
+
+```
+$ (cd dashboard/assets && ./node_modules/.bin/webpack --watch)
+$ geth --dashboard --dashboard.assets=dashboard/assets/public --vmodule=dashboard=5
+```
+
+To bundle up the final UI into Geth, run `webpack` and `go generate`:
+
+```
+$ (cd dashboard/assets && ./node_modules/.bin/webpack)
+$ go generate ./dashboard
+```
+
+### Have fun
+
+[Webpack][Webpack] offers handy tools for visualizing the bundle's dependency tree and space usage.
+
+* Generate the bundle's profile running `webpack --profile --json > stats.json`
+* For the _dependency tree_ go to [Webpack Analyze][WA], and import `stats.json`
+* For the _space usage_ go to [Webpack Visualizer][WV], and import `stats.json`
+
+[React]: https://reactjs.org/
+[ESLint]: https://eslint.org/
+[Airbnb]: https://github.com/airbnb/javascript/tree/master/react
+[Webpack]: https://webpack.github.io/
+[WA]: http://webpack.github.io/analyse/
+[WV]: http://chrisbateman.github.io/webpack-visualizer/
+[Node.js]: https://nodejs.org/en/

dashboard/assets/.eslintrc

@@ -0,0 +1,52 @@
+// Copyright 2017 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 <http://www.gnu.org/licenses/>.
+
+// React syntax style mostly according to https://github.com/airbnb/javascript/tree/master/react
+{
+  "plugins": [
+    "react"
+  ],
+  "parser": "babel-eslint",
+  "parserOptions": {
+    "ecmaFeatures": {
+      "jsx": true,
+      "modules": true
+    }
+  },
+  "rules": {
+    "react/prefer-es6-class": 2,
+    "react/prefer-stateless-function": 2,
+    "react/jsx-pascal-case": 2,
+    "react/jsx-closing-bracket-location": [1, {"selfClosing": "tag-aligned", "nonEmpty": "tag-aligned"}],
+    "react/jsx-closing-tag-location": 1,
+    "jsx-quotes": ["error", "prefer-double"],
+    "no-multi-spaces": "error",
+    "react/jsx-tag-spacing": 2,
+    "react/jsx-curly-spacing": [2, {"when": "never", "children": true}],
+    "react/jsx-boolean-value": 2,
+    "react/no-string-refs": 2,
+    "react/jsx-wrap-multilines": 2,
+    "react/self-closing-comp": 2,
+    "react/jsx-no-bind": 2,
+    "react/require-render-return": 2,
+    "react/no-is-mounted": 2,
+    "key-spacing": ["error", {"align": {
+      "beforeColon": false,
+      "afterColon": true,
+      "on": "value"
+    }}]
+  }
+}

dashboard/assets/components/Common.jsx

@@ -0,0 +1,52 @@
+// Copyright 2017 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 <http://www.gnu.org/licenses/>.
+
+// isNullOrUndefined returns true if the given variable is null or undefined.
+export const isNullOrUndefined = variable => variable === null || typeof variable === 'undefined';
+
+export const LIMIT = {
+    memory:  200, // Maximum number of memory data samples.
+    traffic: 200, // Maximum number of traffic data samples.
+    log:     200, // Maximum number of logs.
+};
+// The sidebar menu and the main content are rendered based on these elements.
+export const TAGS = (() => {
+    const T = {
+        home:         { title: "Home", },
+        chain:        { title: "Chain", },
+        transactions: { title: "Transactions", },
+        network:      { title: "Network", },
+        system:       { title: "System", },
+        logs:         { title: "Logs", },
+    };
+    // Using the key is circumstantial in some cases, so it is better to insert it also as a value.
+    // This way the mistyping is prevented.
+    for(let key in T) {
+        T[key]['id'] = key;
+    }
+    return T;
+})();
+
+export const DATA_KEYS = (() => {
+    const DK = {};
+    ["memory", "traffic", "logs"].map(key => {
+       DK[key] = key;
+    });
+    return DK;
+})();
+
+// Temporary - taken from Material-UI
+export const DRAWER_WIDTH = 240;

dashboard/assets/components/Dashboard.jsx

@@ -0,0 +1,169 @@
+// Copyright 2017 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 <http://www.gnu.org/licenses/>.
+
+import React, {Component} from 'react';
+import PropTypes from 'prop-types';
+import {withStyles} from 'material-ui/styles';
+
+import SideBar from './SideBar.jsx';
+import Header from './Header.jsx';
+import Main from "./Main.jsx";
+import {isNullOrUndefined, LIMIT, TAGS, DATA_KEYS,} from "./Common.jsx";
+
+// Styles for the Dashboard component.
+const styles = theme => ({
+    appFrame: {
+        position:   'relative',
+        display:    'flex',
+        width:      '100%',
+        height:     '100%',
+        background: theme.palette.background.default,
+    },
+});
+
+// Dashboard is the main component, which renders the whole page, makes connection with the server and listens for messages.
+// When there is an incoming message, updates the page's content correspondingly.
+class Dashboard extends Component {
+    constructor(props) {
+        super(props);
+        this.state = {
+            active:       TAGS.home.id, // active menu
+            sideBar:      true, // true if the sidebar is opened
+            memory:       [],
+            traffic:      [],
+            logs:         [],
+            shouldUpdate: {},
+        };
+    }
+
+    // componentDidMount initiates the establishment of the first websocket connection after the component is rendered.
+    componentDidMount() {
+        this.reconnect();
+    }
+
+    // reconnect establishes a websocket connection with the server, listens for incoming messages
+    // and tries to reconnect on connection loss.
+    reconnect = () => {
+        const server = new WebSocket(((window.location.protocol === "https:") ? "wss://" : "ws://") + window.location.host + "/api");
+
+        server.onmessage = event => {
+            const msg = JSON.parse(event.data);
+            if (isNullOrUndefined(msg)) {
+                return;
+            }
+            this.update(msg);
+        };
+
+        server.onclose = () => {
+            setTimeout(this.reconnect, 3000);
+        };
+    };
+
+    // update analyzes the incoming message, and updates the charts' content correspondingly.
+    update = msg => {
+        console.log(msg);
+        this.setState(prevState => {
+            let newState = [];
+            newState.shouldUpdate = {};
+            const insert = (key, values, limit) => {
+                newState[key] = [...prevState[key], ...values];
+                while (newState[key].length > limit) {
+                    newState[key].shift();
+                }
+                newState.shouldUpdate[key] = true;
+            };
+            // (Re)initialize the state with the past data.
+            if (!isNullOrUndefined(msg.history)) {
+                const memory = DATA_KEYS.memory;
+                const traffic = DATA_KEYS.traffic;
+                newState[memory] = [];
+                newState[traffic] = [];
+                if (!isNullOrUndefined(msg.history.memorySamples)) {
+                    newState[memory] = msg.history.memorySamples.map(elem => isNullOrUndefined(elem.value) ? 0 : elem.value);
+                    while (newState[memory].length > LIMIT.memory) {
+                        newState[memory].shift();
+                    }
+                    newState.shouldUpdate[memory] = true;
+                }
+                if (!isNullOrUndefined(msg.history.trafficSamples)) {
+                    newState[traffic] = msg.history.trafficSamples.map(elem => isNullOrUndefined(elem.value) ? 0 : elem.value);
+                    while (newState[traffic].length > LIMIT.traffic) {
+                        newState[traffic].shift();
+                    }
+                    newState.shouldUpdate[traffic] = true;
+                }
+            }
+            // Insert the new data samples.
+            if (!isNullOrUndefined(msg.memory)) {
+                insert(DATA_KEYS.memory, [isNullOrUndefined(msg.memory.value) ? 0 : msg.memory.value], LIMIT.memory);
+            }
+            if (!isNullOrUndefined(msg.traffic)) {
+                insert(DATA_KEYS.traffic, [isNullOrUndefined(msg.traffic.value) ? 0 : msg.traffic.value], LIMIT.traffic);
+            }
+            if (!isNullOrUndefined(msg.log)) {
+                insert(DATA_KEYS.logs, [msg.log], LIMIT.log);
+            }
+
+            return newState;
+        });
+    };
+
+    // The change of the active label on the SideBar component will trigger a new render in the Main component.
+    changeContent = active => {
+        this.setState(prevState => prevState.active !== active ? {active: active} : {});
+    };
+
+    openSideBar = () => {
+        this.setState({sideBar: true});
+    };
+
+    closeSideBar = () => {
+        this.setState({sideBar: false});
+    };
+
+    render() {
+        // The classes property is injected by withStyles().
+        const {classes} = this.props;
+
+        return (
+            <div className={classes.appFrame}>
+                <Header
+                    opened={this.state.sideBar}
+                    open={this.openSideBar}
+                />
+                <SideBar
+                    opened={this.state.sideBar}
+                    close={this.closeSideBar}
+                    changeContent={this.changeContent}
+                />
+                <Main
+                    opened={this.state.sideBar}
+                    active={this.state.active}
+                    memory={this.state.memory}
+                    traffic={this.state.traffic}
+                    logs={this.state.logs}
+                    shouldUpdate={this.state.shouldUpdate}
+                />
+            </div>
+        );
+    }
+}
+
+Dashboard.propTypes = {
+    classes: PropTypes.object.isRequired,
+};
+
+export default withStyles(styles)(Dashboard);

dashboard/assets/components/Header.jsx

@@ -0,0 +1,87 @@
+// Copyright 2017 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 <http://www.gnu.org/licenses/>.
+
+import React, {Component} from 'react';
+import PropTypes from 'prop-types';
+import classNames from 'classnames';
+import {withStyles} from 'material-ui/styles';
+import AppBar from 'material-ui/AppBar';
+import Toolbar from 'material-ui/Toolbar';
+import Typography from 'material-ui/Typography';
+import IconButton from 'material-ui/IconButton';
+import MenuIcon from 'material-ui-icons/Menu';
+
+import {DRAWER_WIDTH} from './Common.jsx';
+
+// Styles for the Header component.
+const styles = theme => ({
+    appBar: {
+        position:   'absolute',
+        transition: theme.transitions.create(['margin', 'width'], {
+            easing:   theme.transitions.easing.sharp,
+            duration: theme.transitions.duration.leavingScreen,
+        }),
+    },
+    appBarShift: {
+        marginLeft: DRAWER_WIDTH,
+        width:      `calc(100% - ${DRAWER_WIDTH}px)`,
+        transition: theme.transitions.create(['margin', 'width'], {
+            easing:   theme.transitions.easing.easeOut,
+            duration: theme.transitions.duration.enteringScreen,
+        }),
+    },
+    menuButton: {
+        marginLeft:  12,
+        marginRight: 20,
+    },
+    hide: {
+        display: 'none',
+    },
+});
+
+// Header renders a header, which contains a sidebar opener icon when that is closed.
+class Header extends Component {
+    render() {
+        // The classes property is injected by withStyles().
+        const {classes} = this.props;
+
+        return (
+            <AppBar className={classNames(classes.appBar, this.props.opened && classes.appBarShift)}>
+                <Toolbar disableGutters={!this.props.opened}>
+                    <IconButton
+                        color="contrast"
+                        aria-label="open drawer"
+                        onClick={this.props.open}
+                        className={classNames(classes.menuButton, this.props.opened && classes.hide)}
+                    >
+                        <MenuIcon />
+                    </IconButton>
+                    <Typography type="title" color="inherit" noWrap>
+                        Go Ethereum Dashboard
+                    </Typography>
+                </Toolbar>
+            </AppBar>
+        );
+    }
+}
+
+Header.propTypes = {
+    classes: PropTypes.object.isRequired,
+    opened:  PropTypes.bool.isRequired,
+    open:    PropTypes.func.isRequired,
+};
+
+export default withStyles(styles)(Header);

dashboard/assets/components/Home.jsx

@@ -0,0 +1,89 @@
+// Copyright 2017 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 <http://www.gnu.org/licenses/>.
+
+import React, {Component} from 'react';
+import PropTypes from 'prop-types';
+import Grid from 'material-ui/Grid';
+import {LineChart, AreaChart, Area, YAxis, CartesianGrid, Line, ResponsiveContainer} from 'recharts';
+import {withTheme} from 'material-ui/styles';
+
+import {isNullOrUndefined, DATA_KEYS} from "./Common.jsx";
+
+// ChartGrid renders a grid container for responsive charts.
+// The children are Recharts components extended with the Material-UI's xs property.
+class ChartGrid extends Component {
+    render() {
+        return (
+            <Grid container spacing={this.props.spacing}>
+                {
+                    React.Children.map(this.props.children, child => (
+                        <Grid item xs={child.props.xs}>
+                            <ResponsiveContainer width="100%" height={child.props.height}>
+                                {React.cloneElement(child, {data: child.props.values.map(value => ({value: value}))})}
+                            </ResponsiveContainer>
+                        </Grid>
+                    ))
+                }
+            </Grid>
+        );
+    }
+}
+
+ChartGrid.propTypes = {
+    spacing: PropTypes.number.isRequired,
+};
+
+// Home renders the home component.
+class Home extends Component {
+    shouldComponentUpdate(nextProps) {
+        return !isNullOrUndefined(nextProps.shouldUpdate[DATA_KEYS.memory]) ||
+            !isNullOrUndefined(nextProps.shouldUpdate[DATA_KEYS.traffic]);
+    }
+
+    render() {
+        const {theme} = this.props;
+        const memoryColor = theme.palette.primary[300];
+        const trafficColor = theme.palette.secondary[300];
+
+        return (
+            <ChartGrid spacing={24}>
+                <AreaChart xs={6} height={300} values={this.props.memory}>
+                    <YAxis />
+                    <Area type="monotone" dataKey="value" stroke={memoryColor} fill={memoryColor} />
+                </AreaChart>
+                <LineChart xs={6} height={300} values={this.props.traffic}>
+                    <Line type="monotone" dataKey="value" stroke={trafficColor} dot={false} />
+                </LineChart>
+                <LineChart xs={6} height={300} values={this.props.memory}>
+                    <YAxis />
+                    <CartesianGrid stroke="#eee" strokeDasharray="5 5" />
+                    <Line type="monotone" dataKey="value" stroke={memoryColor} dot={false} />
+                </LineChart>
+                <AreaChart xs={6} height={300} values={this.props.traffic}>
+                    <CartesianGrid stroke="#eee" strokeDasharray="5 5" vertical={false} />
+                    <Area type="monotone" dataKey="value" stroke={trafficColor} fill={trafficColor} />
+                </AreaChart>
+            </ChartGrid>
+        );
+    }
+}
+
+Home.propTypes = {
+    theme:        PropTypes.object.isRequired,
+    shouldUpdate: PropTypes.object.isRequired,
+};
+
+export default withTheme()(Home);

dashboard/assets/components/Main.jsx

@@ -0,0 +1,109 @@
+// Copyright 2017 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 <http://www.gnu.org/licenses/>.
+
+import React, {Component} from 'react';
+import PropTypes from 'prop-types';
+import classNames from 'classnames';
+import {withStyles} from 'material-ui/styles';
+
+import {TAGS, DRAWER_WIDTH} from "./Common.jsx";
+import Home from './Home.jsx';
+
+// ContentSwitch chooses and renders the proper page content.
+class ContentSwitch extends Component {
+    render() {
+        switch(this.props.active) {
+            case TAGS.home.id:
+                return <Home memory={this.props.memory} traffic={this.props.traffic} shouldUpdate={this.props.shouldUpdate} />;
+            case TAGS.chain.id:
+                return null;
+            case TAGS.transactions.id:
+                return null;
+            case TAGS.network.id:
+                // Only for testing.
+                return null;
+            case TAGS.system.id:
+                return null;
+            case TAGS.logs.id:
+                return <div>{this.props.logs.map((log, index) => <div key={index}>{log}</div>)}</div>;
+        }
+        return null;
+    }
+}
+
+ContentSwitch.propTypes = {
+    active:       PropTypes.string.isRequired,
+    shouldUpdate: PropTypes.object.isRequired,
+};
+
+// styles contains the styles for the Main component.
+const styles = theme => ({
+    content: {
+        width:           '100%',
+        marginLeft:      -DRAWER_WIDTH,
+        flexGrow:        1,
+        backgroundColor: theme.palette.background.default,
+        padding:         theme.spacing.unit * 3,
+        transition:      theme.transitions.create('margin', {
+            easing:   theme.transitions.easing.sharp,
+            duration: theme.transitions.duration.leavingScreen,
+        }),
+        marginTop:                    56,
+        overflow:                     'auto',
+        [theme.breakpoints.up('sm')]: {
+            content: {
+                height:    'calc(100% - 64px)',
+                marginTop: 64,
+            },
+        },
+    },
+    contentShift: {
+        marginLeft: 0,
+        transition: theme.transitions.create('margin', {
+            easing:   theme.transitions.easing.easeOut,
+            duration: theme.transitions.duration.enteringScreen,
+        }),
+    },
+});
+
+// Main renders a component for the page content.
+class Main extends Component {
+    render() {
+        // The classes property is injected by withStyles().
+        const {classes} = this.props;
+
+        return (
+            <main className={classNames(classes.content, this.props.opened && classes.contentShift)}>
+                <ContentSwitch
+                    active={this.props.active}
+                    memory={this.props.memory}
+                    traffic={this.props.traffic}
+                    logs={this.props.logs}
+                    shouldUpdate={this.props.shouldUpdate}
+                />
+            </main>
+        );
+    }
+}
+
+Main.propTypes = {
+    classes:      PropTypes.object.isRequired,
+    opened:       PropTypes.bool.isRequired,
+    active:       PropTypes.string.isRequired,
+    shouldUpdate: PropTypes.object.isRequired,
+};
+
+export default withStyles(styles)(Main);

dashboard/assets/components/SideBar.jsx

@@ -0,0 +1,106 @@
+// Copyright 2017 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 <http://www.gnu.org/licenses/>.
+
+import React, {Component} from 'react';
+import PropTypes from 'prop-types';
+import {withStyles} from 'material-ui/styles';
+import Drawer from 'material-ui/Drawer';
+import {IconButton} from "material-ui";
+import List, {ListItem, ListItemText} from 'material-ui/List';
+import ChevronLeftIcon from 'material-ui-icons/ChevronLeft';
+
+import {TAGS, DRAWER_WIDTH} from './Common.jsx';
+
+// Styles for the SideBar component.
+const styles = theme => ({
+    drawerPaper: {
+        position: 'relative',
+        height:   '100%',
+        width:    DRAWER_WIDTH,
+    },
+    drawerHeader: {
+        display:            'flex',
+        alignItems:         'center',
+        justifyContent:     'flex-end',
+        padding:            '0 8px',
+        ...theme.mixins.toolbar,
+        transitionDuration: {
+            enter: theme.transitions.duration.enteringScreen,
+            exit:  theme.transitions.duration.leavingScreen,
+        }
+    },
+});
+
+// SideBar renders a sidebar component.
+class SideBar extends Component {
+    constructor(props) {
+        super(props);
+
+        // clickOn contains onClick event functions for the menu items.
+        // Instantiate only once, and reuse the existing functions to prevent the creation of
+        // new function instances every time the render method is triggered.
+        this.clickOn = {};
+        for(let key in TAGS) {
+            const id = TAGS[key].id;
+            this.clickOn[id] = event => {
+                event.preventDefault();
+                console.log(event.target.key);
+                this.props.changeContent(id);
+            };
+        }
+    }
+
+    render() {
+        // The classes property is injected by withStyles().
+        const {classes} = this.props;
+
+        return (
+            <Drawer
+                type="persistent"
+                classes={{paper: classes.drawerPaper,}}
+                open={this.props.opened}
+            >
+                <div>
+                    <div className={classes.drawerHeader}>
+                        <IconButton onClick={this.props.close}>
+                            <ChevronLeftIcon />
+                        </IconButton>
+                    </div>
+                    <List>
+                        {
+                            Object.values(TAGS).map(tag => {
+                                return (
+                                    <ListItem button key={tag.id} onClick={this.clickOn[tag.id]}>
+                                        <ListItemText primary={tag.title} />
+                                    </ListItem>
+                                );
+                            })
+                        }
+                    </List>
+                </div>
+            </Drawer>
+        );
+    }
+}
+
+SideBar.propTypes = {
+    classes:       PropTypes.object.isRequired,
+    opened:        PropTypes.bool.isRequired,
+    close:         PropTypes.func.isRequired,
+    changeContent: PropTypes.func.isRequired,
+};
+
+export default withStyles(styles)(SideBar);

dashboard/assets/index.jsx

@@ -0,0 +1,36 @@
+// Copyright 2017 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 <http://www.gnu.org/licenses/>.
+
+import React from 'react';
+import {hydrate} from 'react-dom';
+import {createMuiTheme, MuiThemeProvider} from 'material-ui/styles';
+
+import Dashboard from './components/Dashboard.jsx';
+
+// Theme for the dashboard.
+const theme = createMuiTheme({
+    palette: {
+        type: 'dark',
+    },
+});
+
+// Renders the whole dashboard.
+hydrate(
+    <MuiThemeProvider theme={theme}>
+        <Dashboard />
+    </MuiThemeProvider>,
+    document.getElementById('dashboard')
+);

dashboard/assets/package.json

@@ -0,0 +1,22 @@
+{
+  "dependencies": {
+    "babel-core": "^6.26.0",
+    "babel-eslint": "^8.0.1",
+    "babel-loader": "^7.1.2",
+    "babel-preset-env": "^1.6.1",
+    "babel-preset-react": "^6.24.1",
+    "babel-preset-stage-0": "^6.24.1",
+    "classnames": "^2.2.5",
+    "eslint": "^4.5.0",
+    "eslint-plugin-react": "^7.4.0",
+    "material-ui": "^1.0.0-beta.18",
+    "material-ui-icons": "^1.0.0-beta.17",
+    "path": "^0.12.7",
+    "prop-types": "^15.6.0",
+    "recharts": "^1.0.0-beta.0",
+    "react": "^16.0.0",
+    "react-dom": "^16.0.0",
+    "url": "^0.11.0",
+    "webpack": "^3.5.5"
+  }
+}

dashboard/assets/public/dashboard.html

@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html lang="en" style="height: 100%">
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1">
+
+        <title>Go Ethereum Dashboard</title>
+        <link rel="shortcut icon" type="image/ico" href="https://ethereum.org/favicon.ico"/>
+
+        <!-- TODO (kurkomisi): Return to the external libraries to speed up the bundling during development -->
+    </head>
+    <body style="height: 100%; margin: 0">
+        <div id="dashboard" style="height: 100%"></div>
+        <script src="bundle.js"></script>
+    </body>
+</html>

dashboard/assets/webpack.config.js

@@ -0,0 +1,36 @@
+// Copyright 2017 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 <http://www.gnu.org/licenses/>.
+
+const path = require('path');
+
+module.exports = {
+    entry:  './index.jsx',
+    output: {
+        path:     path.resolve(__dirname, 'public'),
+        filename: 'bundle.js',
+    },
+    module: {
+        loaders: [
+            {
+                test: /\.jsx$/, // regexp for JSX files
+                loader: 'babel-loader', // The babel configuration is in the package.json.
+                query: {
+                    presets: ['env', 'react', 'stage-0']
+                }
+            },
+        ],
+    },
+};

dashboard/config.go

@@ -0,0 +1,45 @@
+// Copyright 2017 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 <http://www.gnu.org/licenses/>.
+
+package dashboard
+
+import "time"
+
+// DefaultConfig contains default settings for the dashboard.
+var DefaultConfig = Config{
+	Host:    "localhost",
+	Port:    8080,
+	Refresh: 3 * time.Second,
+}
+
+// Config contains the configuration parameters of the dashboard.
+type Config struct {
+	// Host is the host interface on which to start the dashboard server. If this
+	// field is empty, no dashboard will be started.
+	Host string `toml:",omitempty"`
+
+	// Port is the TCP port number on which to start the dashboard server. The
+	// default zero value is/ valid and will pick a port number randomly (useful
+	// for ephemeral nodes).
+	Port int `toml:",omitempty"`
+
+	// Refresh is the refresh rate of the data updates, the chartEntry will be collected this often.
+	Refresh time.Duration `toml:",omitempty"`
+
+	// Assets offers a possibility to manually set the dashboard website's location on the server side.
+	// It is useful for debugging, avoids the repeated generation of the binary.
+	Assets string `toml:",omitempty"`
+}

dashboard/dashboard.go

@@ -0,0 +1,305 @@
+// Copyright 2017 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 <http://www.gnu.org/licenses/>.
+
+package dashboard
+
+//go:generate go-bindata -nometadata -o assets.go -prefix assets -pkg dashboard assets/public/...
+
+import (
+	"fmt"
+	"io/ioutil"
+	"net"
+	"net/http"
+	"path/filepath"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/p2p"
+	"github.com/ethereum/go-ethereum/rpc"
+	"github.com/rcrowley/go-metrics"
+	"golang.org/x/net/websocket"
+)
+
+const (
+	memorySampleLimit  = 200 // Maximum number of memory data samples
+	trafficSampleLimit = 200 // Maximum number of traffic data samples
+)
+
+var nextId uint32 // Next connection id
+
+// Dashboard contains the dashboard internals.
+type Dashboard struct {
+	config *Config
+
+	listener net.Listener
+	conns    map[uint32]*client // Currently live websocket connections
+	charts   charts             // The collected data samples to plot
+	lock     sync.RWMutex       // Lock protecting the dashboard's internals
+
+	quit chan chan error // Channel used for graceful exit
+	wg   sync.WaitGroup
+}
+
+// message embraces the data samples of a client message.
+type message struct {
+	History *charts     `json:"history,omitempty"` // Past data samples
+	Memory  *chartEntry `json:"memory,omitempty"`  // One memory sample
+	Traffic *chartEntry `json:"traffic,omitempty"` // One traffic sample
+	Log     string      `json:"log,omitempty"`     // One log
+}
+
+// client represents active websocket connection with a remote browser.
+type client struct {
+	conn   *websocket.Conn // Particular live websocket connection
+	msg    chan message    // Message queue for the update messages
+	logger log.Logger      // Logger for the particular live websocket connection
+}
+
+// charts contains the collected data samples.
+type charts struct {
+	Memory  []*chartEntry `json:"memorySamples,omitempty"`
+	Traffic []*chartEntry `json:"trafficSamples,omitempty"`
+}
+
+// chartEntry represents one data sample
+type chartEntry struct {
+	Time  time.Time `json:"time,omitempty"`
+	Value float64   `json:"value,omitempty"`
+}
+
+// New creates a new dashboard instance with the given configuration.
+func New(config *Config) (*Dashboard, error) {
+	return &Dashboard{
+		conns:  make(map[uint32]*client),
+		config: config,
+		quit:   make(chan chan error),
+	}, nil
+}
+
+// Protocols is a meaningless implementation of node.Service.
+func (db *Dashboard) Protocols() []p2p.Protocol { return nil }
+
+// APIs is a meaningless implementation of node.Service.
+func (db *Dashboard) APIs() []rpc.API { return nil }
+
+// Start implements node.Service, starting the data collection thread and the listening server of the dashboard.
+func (db *Dashboard) Start(server *p2p.Server) error {
+	db.wg.Add(2)
+	go db.collectData()
+	go db.collectLogs() // In case of removing this line change 2 back to 1 in wg.Add.
+
+	http.HandleFunc("/", db.webHandler)
+	http.Handle("/api", websocket.Handler(db.apiHandler))
+
+	listener, err := net.Listen("tcp", fmt.Sprintf("%s:%d", db.config.Host, db.config.Port))
+	if err != nil {
+		return err
+	}
+	db.listener = listener
+
+	go http.Serve(listener, nil)
+
+	return nil
+}
+
+// Stop implements node.Service, stopping the data collection thread and the connection listener of the dashboard.
+func (db *Dashboard) Stop() error {
+	// Close the connection listener.
+	var errs []error
+	if err := db.listener.Close(); err != nil {
+		errs = append(errs, err)
+	}
+	// Close the collectors.
+	errc := make(chan error, 1)
+	for i := 0; i < 2; i++ {
+		db.quit <- errc
+		if err := <-errc; err != nil {
+			errs = append(errs, err)
+		}
+	}
+	// Close the connections.
+	db.lock.Lock()
+	for _, c := range db.conns {
+		if err := c.conn.Close(); err != nil {
+			c.logger.Warn("Failed to close connection", "err", err)
+		}
+	}
+	db.lock.Unlock()
+
+	// Wait until every goroutine terminates.
+	db.wg.Wait()
+	log.Info("Dashboard stopped")
+
+	var err error
+	if len(errs) > 0 {
+		err = fmt.Errorf("%v", errs)
+	}
+
+	return err
+}
+
+// webHandler handles all non-api requests, simply flattening and returning the dashboard website.
+func (db *Dashboard) webHandler(w http.ResponseWriter, r *http.Request) {
+	log.Debug("Request", "URL", r.URL)
+
+	path := r.URL.String()
+	if path == "/" {
+		path = "/dashboard.html"
+	}
+	// If the path of the assets is manually set
+	if db.config.Assets != "" {
+		blob, err := ioutil.ReadFile(filepath.Join(db.config.Assets, path))
+		if err != nil {
+			log.Warn("Failed to read file", "path", path, "err", err)
+			http.Error(w, "not found", http.StatusNotFound)
+			return
+		}
+		w.Write(blob)
+		return
+	}
+	blob, err := Asset(filepath.Join("public", path))
+	if err != nil {
+		log.Warn("Failed to load the asset", "path", path, "err", err)
+		http.Error(w, "not found", http.StatusNotFound)
+		return
+	}
+	w.Write(blob)
+}
+
+// apiHandler handles requests for the dashboard.
+func (db *Dashboard) apiHandler(conn *websocket.Conn) {
+	id := atomic.AddUint32(&nextId, 1)
+	client := &client{
+		conn:   conn,
+		msg:    make(chan message, 128),
+		logger: log.New("id", id),
+	}
+	done := make(chan struct{}) // Buffered channel as sender may exit early
+
+	// Start listening for messages to send.
+	db.wg.Add(1)
+	go func() {
+		defer db.wg.Done()
+
+		for {
+			select {
+			case <-done:
+				return
+			case msg := <-client.msg:
+				if err := websocket.JSON.Send(client.conn, msg); err != nil {
+					client.logger.Warn("Failed to send the message", "msg", msg, "err", err)
+					client.conn.Close()
+					return
+				}
+			}
+		}
+	}()
+	// Send the past data.
+	client.msg <- message{
+		History: &db.charts,
+	}
+	// Start tracking the connection and drop at connection loss.
+	db.lock.Lock()
+	db.conns[id] = client
+	db.lock.Unlock()
+	defer func() {
+		db.lock.Lock()
+		delete(db.conns, id)
+		db.lock.Unlock()
+	}()
+	for {
+		fail := []byte{}
+		if _, err := conn.Read(fail); err != nil {
+			close(done)
+			return
+		}
+		// Ignore all messages
+	}
+}
+
+// collectData collects the required data to plot on the dashboard.
+func (db *Dashboard) collectData() {
+	defer db.wg.Done()
+
+	for {
+		select {
+		case errc := <-db.quit:
+			errc <- nil
+			return
+		case <-time.After(db.config.Refresh):
+			inboundTraffic := metrics.DefaultRegistry.Get("p2p/InboundTraffic").(metrics.Meter).Rate1()
+			memoryInUse := metrics.DefaultRegistry.Get("system/memory/inuse").(metrics.Meter).Rate1()
+			now := time.Now()
+			memory := &chartEntry{
+				Time:  now,
+				Value: memoryInUse,
+			}
+			traffic := &chartEntry{
+				Time:  now,
+				Value: inboundTraffic,
+			}
+			// Remove the first elements in case the samples' amount exceeds the limit.
+			first := 0
+			if len(db.charts.Memory) == memorySampleLimit {
+				first = 1
+			}
+			db.charts.Memory = append(db.charts.Memory[first:], memory)
+			first = 0
+			if len(db.charts.Traffic) == trafficSampleLimit {
+				first = 1
+			}
+			db.charts.Traffic = append(db.charts.Traffic[first:], traffic)
+
+			db.sendToAll(&message{
+				Memory:  memory,
+				Traffic: traffic,
+			})
+		}
+	}
+}
+
+// collectLogs collects and sends the logs to the active dashboards.
+func (db *Dashboard) collectLogs() {
+	defer db.wg.Done()
+
+	// TODO (kurkomisi): log collection comes here.
+	for {
+		select {
+		case errc := <-db.quit:
+			errc <- nil
+			return
+		case <-time.After(db.config.Refresh / 2):
+			db.sendToAll(&message{
+				Log: "This is a fake log.",
+			})
+		}
+	}
+}
+
+// sendToAll sends the given message to the active dashboards.
+func (db *Dashboard) sendToAll(msg *message) {
+	db.lock.Lock()
+	for _, c := range db.conns {
+		select {
+		case c.msg <- *msg:
+		default:
+			c.conn.Close()
+		}
+	}
+	db.lock.Unlock()
+}

eth/api.go

@@ -636,3 +636,86 @@ func storageRangeAt(st state.Trie, start []byte, maxResult int) StorageRangeResu
 	}
 	return result
 }
+
+// GetModifiedAccountsByumber returns all accounts that have changed between the
+// two blocks specified. A change is defined as a difference in nonce, balance,
+// code hash, or storage hash.
+//
+// With one parameter, returns the list of accounts modified in the specified block.
+func (api *PrivateDebugAPI) GetModifiedAccountsByNumber(startNum uint64, endNum *uint64) ([]common.Address, error) {
+	var startBlock, endBlock *types.Block
+
+	startBlock = api.eth.blockchain.GetBlockByNumber(startNum)
+	if startBlock == nil {
+		return nil, fmt.Errorf("start block %x not found", startNum)
+	}
+
+	if endNum == nil {
+		endBlock = startBlock
+		startBlock = api.eth.blockchain.GetBlockByHash(startBlock.ParentHash())
+		if startBlock == nil {
+			return nil, fmt.Errorf("block %x has no parent", endBlock.Number())
+		}
+	} else {
+		endBlock = api.eth.blockchain.GetBlockByNumber(*endNum)
+		if endBlock == nil {
+			return nil, fmt.Errorf("end block %d not found", *endNum)
+		}
+	}
+	return api.getModifiedAccounts(startBlock, endBlock)
+}
+
+// GetModifiedAccountsByHash returns all accounts that have changed between the
+// two blocks specified. A change is defined as a difference in nonce, balance,
+// code hash, or storage hash.
+//
+// With one parameter, returns the list of accounts modified in the specified block.
+func (api *PrivateDebugAPI) GetModifiedAccountsByHash(startHash common.Hash, endHash *common.Hash) ([]common.Address, error) {
+	var startBlock, endBlock *types.Block
+	startBlock = api.eth.blockchain.GetBlockByHash(startHash)
+	if startBlock == nil {
+		return nil, fmt.Errorf("start block %x not found", startHash)
+	}
+
+	if endHash == nil {
+		endBlock = startBlock
+		startBlock = api.eth.blockchain.GetBlockByHash(startBlock.ParentHash())
+		if startBlock == nil {
+			return nil, fmt.Errorf("block %x has no parent", endBlock.Number())
+		}
+	} else {
+		endBlock = api.eth.blockchain.GetBlockByHash(*endHash)
+		if endBlock == nil {
+			return nil, fmt.Errorf("end block %x not found", *endHash)
+		}
+	}
+	return api.getModifiedAccounts(startBlock, endBlock)
+}
+
+func (api *PrivateDebugAPI) getModifiedAccounts(startBlock, endBlock *types.Block) ([]common.Address, error) {
+	if startBlock.Number().Uint64() >= endBlock.Number().Uint64() {
+		return nil, fmt.Errorf("start block height (%d) must be less than end block height (%d)", startBlock.Number().Uint64(), endBlock.Number().Uint64())
+	}
+
+	oldTrie, err := trie.NewSecure(startBlock.Root(), api.eth.chainDb, 0)
+	if err != nil {
+		return nil, err
+	}
+	newTrie, err := trie.NewSecure(endBlock.Root(), api.eth.chainDb, 0)
+	if err != nil {
+		return nil, err
+	}
+
+	diff, _ := trie.NewDifferenceIterator(oldTrie.NodeIterator([]byte{}), newTrie.NodeIterator([]byte{}))
+	iter := trie.NewIterator(diff)
+
+	var dirty []common.Address
+	for iter.Next() {
+		key := newTrie.GetKey(iter.Key)
+		if key == nil {
+			return nil, fmt.Errorf("no preimage found for hash %x", iter.Key)
+		}
+		dirty = append(dirty, common.BytesToAddress(key))
+	}
+	return dirty, nil
+}

eth/backend.go

@@ -125,7 +125,7 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
 		chainConfig:    chainConfig,
 		eventMux:       ctx.EventMux,
 		accountManager: ctx.AccountManager,
-		engine:         CreateConsensusEngine(ctx, config, chainConfig, chainDb),
+		engine:         CreateConsensusEngine(ctx, &config.Ethash, chainConfig, chainDb),
 		shutdownChan:   make(chan bool),
 		stopDbUpgrade:  stopDbUpgrade,
 		networkId:      config.NetworkId,
@@ -209,25 +209,31 @@ func CreateDB(ctx *node.ServiceContext, config *Config, name string) (ethdb.Data
 }
 
 // CreateConsensusEngine creates the required type of consensus engine instance for an Ethereum service
-func CreateConsensusEngine(ctx *node.ServiceContext, config *Config, chainConfig *params.ChainConfig, db ethdb.Database) consensus.Engine {
+func CreateConsensusEngine(ctx *node.ServiceContext, config *ethash.Config, chainConfig *params.ChainConfig, db ethdb.Database) consensus.Engine {
 	// If proof-of-authority is requested, set it up
 	if chainConfig.Clique != nil {
 		return clique.New(chainConfig.Clique, db)
 	}
 	// Otherwise assume proof-of-work
 	switch {
-	case config.PowFake:
+	case config.PowMode == ethash.ModeFake:
 		log.Warn("Ethash used in fake mode")
 		return ethash.NewFaker()
-	case config.PowTest:
+	case config.PowMode == ethash.ModeTest:
 		log.Warn("Ethash used in test mode")
 		return ethash.NewTester()
-	case config.PowShared:
+	case config.PowMode == ethash.ModeShared:
 		log.Warn("Ethash used in shared mode")
 		return ethash.NewShared()
 	default:
-		engine := ethash.New(ctx.ResolvePath(config.EthashCacheDir), config.EthashCachesInMem, config.EthashCachesOnDisk,
+		engine := ethash.New(ethash.Config{
-			config.EthashDatasetDir, config.EthashDatasetsInMem, config.EthashDatasetsOnDisk)
+			CacheDir:       ctx.ResolvePath(config.CacheDir),
+			CachesInMem:    config.CachesInMem,
+			CachesOnDisk:   config.CachesOnDisk,
+			DatasetDir:     config.DatasetDir,
+			DatasetsInMem:  config.DatasetsInMem,
+			DatasetsOnDisk: config.DatasetsOnDisk,
+		})
 		engine.SetThreads(-1) // Disable CPU mining
 		return engine
 	}

eth/config.go

@@ -25,6 +25,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
+	"github.com/ethereum/go-ethereum/consensus/ethash"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/eth/downloader"
 	"github.com/ethereum/go-ethereum/eth/gasprice"
@@ -34,11 +35,13 @@ import (
 // DefaultConfig contains default settings for use on the Ethereum main net.
 var DefaultConfig = Config{
 	SyncMode: downloader.FastSync,
-	EthashCacheDir:       "ethash",
+	Ethash: ethash.Config{
-	EthashCachesInMem:    2,
+		CacheDir:       "ethash",
-	EthashCachesOnDisk:   3,
+		CachesInMem:    2,
-	EthashDatasetsInMem:  1,
+		CachesOnDisk:   3,
-	EthashDatasetsOnDisk: 2,
+		DatasetsInMem:  1,
+		DatasetsOnDisk: 2,
+	},
 	NetworkId:     1,
 	LightPeers:    20,
 	DatabaseCache: 128,
@@ -59,9 +62,9 @@ func init() {
 		}
 	}
 	if runtime.GOOS == "windows" {
-		DefaultConfig.EthashDatasetDir = filepath.Join(home, "AppData", "Ethash")
+		DefaultConfig.Ethash.DatasetDir = filepath.Join(home, "AppData", "Ethash")
 	} else {
-		DefaultConfig.EthashDatasetDir = filepath.Join(home, ".ethash")
+		DefaultConfig.Ethash.DatasetDir = filepath.Join(home, ".ethash")
 	}
 }
 
@@ -92,12 +95,7 @@ type Config struct {
 	GasPrice     *big.Int
 
 	// Ethash options
-	EthashCacheDir       string
+	Ethash ethash.Config
-	EthashCachesInMem    int
-	EthashCachesOnDisk   int
-	EthashDatasetDir     string
-	EthashDatasetsInMem  int
-	EthashDatasetsOnDisk int
 
 	// Transaction pool options
 	TxPool core.TxPoolConfig
@@ -110,9 +108,6 @@ type Config struct {
 
 	// Miscellaneous options
 	DocRoot string `toml:"-"`
-	PowFake   bool   `toml:"-"`
-	PowTest   bool   `toml:"-"`
-	PowShared bool   `toml:"-"`
 }
 
 type configMarshaling struct {

eth/downloader/downloader.go

@@ -333,7 +333,7 @@ func (d *Downloader) Synchronise(id string, head common.Hash, td *big.Int, mode
 }
 
 // synchronise will select the peer and use it for synchronising. If an empty string is given
-// it will use the best peer possible and synchronize if it's TD is higher than our own. If any of the
+// it will use the best peer possible and synchronize if its TD is higher than our own. If any of the
 // checks fail an error will be returned. This method is synchronous
 func (d *Downloader) synchronise(id string, hash common.Hash, td *big.Int, mode SyncMode) error {
 	// Mock out the synchronisation if testing
@@ -708,7 +708,7 @@ func (d *Downloader) findAncestor(p *peerConnection, height uint64) (uint64, err
 		ttl := d.requestTTL()
 		timeout := time.After(ttl)
 
-		go p.peer.RequestHeadersByNumber(uint64(check), 1, 0, false)
+		go p.peer.RequestHeadersByNumber(check, 1, 0, false)
 
 		// Wait until a reply arrives to this request
 		for arrived := false; !arrived; {
@@ -1003,8 +1003,8 @@ func (d *Downloader) fetchParts(errCancel error, deliveryCh chan dataPack, deliv
 			return errCancel
 
 		case packet := <-deliveryCh:
-			// If the peer was previously banned and failed to deliver it's pack
+			// If the peer was previously banned and failed to deliver its pack
-			// in a reasonable time frame, ignore it's message.
+			// in a reasonable time frame, ignore its message.
 			if peer := d.peers.Peer(packet.PeerId()); peer != nil {
 				// Deliver the received chunk of data and check chain validity
 				accepted, err := deliver(packet)
@@ -1205,8 +1205,8 @@ func (d *Downloader) processHeaders(origin uint64, td *big.Int) error {
 					case <-d.cancelCh:
 					}
 				}
-				// If no headers were retrieved at all, the peer violated it's TD promise that it had a
+				// If no headers were retrieved at all, the peer violated its TD promise that it had a
-				// better chain compared to ours. The only exception is if it's promised blocks were
+				// better chain compared to ours. The only exception is if its promised blocks were
 				// already imported by other means (e.g. fecher):
 				//
 				// R <remote peer>, L <local node>: Both at block 10
@@ -1518,7 +1518,7 @@ func (d *Downloader) deliver(id string, destCh chan dataPack, packet dataPack, i
 func (d *Downloader) qosTuner() {
 	for {
 		// Retrieve the current median RTT and integrate into the previoust target RTT
-		rtt := time.Duration(float64(1-qosTuningImpact)*float64(atomic.LoadUint64(&d.rttEstimate)) + qosTuningImpact*float64(d.peers.medianRTT()))
+		rtt := time.Duration((1-qosTuningImpact)*float64(atomic.LoadUint64(&d.rttEstimate)) + qosTuningImpact*float64(d.peers.medianRTT()))
 		atomic.StoreUint64(&d.rttEstimate, uint64(rtt))
 
 		// A new RTT cycle passed, increase our confidence in the estimated RTT

eth/downloader/fakepeer.go

@@ -62,7 +62,7 @@ func (p *FakePeer) RequestHeadersByHash(hash common.Hash, amount int, skip int,
 		number := origin.Number.Uint64()
 		headers = append(headers, origin)
 		if reverse {
-			for i := 0; i < int(skip)+1; i++ {
+			for i := 0; i <= skip; i++ {
 				if header := p.hc.GetHeader(hash, number); header != nil {
 					hash = header.ParentHash
 					number--

eth/downloader/peer.go

@@ -548,7 +548,7 @@ func (ps *peerSet) idlePeers(minProtocol, maxProtocol int, idleCheck func(*peerC
 	return idle, total
 }
 
-// medianRTT returns the median RTT of te peerset, considering only the tuning
+// medianRTT returns the median RTT of the peerset, considering only the tuning
 // peers if there are more peers available.
 func (ps *peerSet) medianRTT() time.Duration {
 	// Gather all the currnetly measured round trip times