/
account.go
472 lines (409 loc) · 9.7 KB
/
account.go
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package account
import (
"fmt"
"io"
"net"
"net/http"
"os"
"os/signal"
"path/filepath"
"strings"
"syscall"
"berty.tech/core"
nodeapi "berty.tech/core/api/node"
p2papi "berty.tech/core/api/p2p"
"berty.tech/core/bot"
"berty.tech/core/entity"
"berty.tech/core/network"
"berty.tech/core/network/netutil"
"berty.tech/core/node"
"berty.tech/core/pkg/zapring"
"berty.tech/core/sql"
"berty.tech/core/sql/sqlcipher"
"github.com/jinzhu/gorm"
reuse "github.com/libp2p/go-reuseport"
"github.com/pkg/errors"
"go.uber.org/zap"
"google.golang.org/grpc"
)
// Info is used in berty.node.DeviceInfos
func Info() map[string]string {
if len(list) < 1 {
return map[string]string{"accounts": "none!"}
}
a := list[0] // FIXME: support multi accounts
return map[string]string{
"manager: accounts": fmt.Sprintf("%d accounts", len(list)),
"manager: gql-bind": a.GQLBind,
"manager: grpc-bind": a.GrpcBind,
"manager: db": a.dbPath(),
"manager: name": a.Name,
"manager: with-bot": fmt.Sprintf("%v", a.withBot),
// FIXME: retrieve info from manager's DB
}
}
type Account struct {
Name string
Passphrase string // passphrase should not be stored in this structure (this memory is too easy to read)
banner string
db *gorm.DB
dbDir string
dbDrop bool
gqlHandler http.Handler
GQLBind string
ioGrpc *netutil.IOGrpc
gqlListener net.Listener
GrpcServer *grpc.Server
GrpcBind string
grpcListener net.Listener
network network.Driver
metrics network.Metrics
node *node.Node
initOnly bool
withBot bool
BotRunning bool
serverTracerCloser io.Closer
dialTracerCloser io.Closer
errChan chan error
ring *zapring.Ring
}
var list []*Account
type NewOption func(*Account) error
type Options []NewOption
func New(opts ...NewOption) (*Account, error) {
a := &Account{
errChan: make(chan error, 1),
}
for _, opt := range opts {
if err := opt(a); err != nil {
return nil, err
}
}
if err := a.Validate(); err != nil {
return nil, err
}
list = append(list, a)
return a, nil
}
func Get(name string) (*Account, error) {
for _, account := range list {
if account != nil && account.Name == name {
return account, nil
}
}
return nil, errors.New("account with name " + name + " isn't opened")
}
func List(datastorePath string) ([]string, error) {
var names []string
err := filepath.Walk(datastorePath, func(path string, info os.FileInfo, err error) error {
logger().Debug("List", zap.String("path", path))
name := filepath.Base(path)
match, _ := filepath.Match("berty.*.db", name)
if match {
logger().Debug("List", zap.Bool("match", match))
name = strings.Split(name, ".")[1]
logger().Debug("List", zap.String("name", name))
names = append(names, name)
logger().Debug("List", zap.Strings("names", names))
}
return nil
})
if err != nil {
return nil, err
}
return names, nil
}
func Delete(a *Account) {
ForEach(func(i int, current *Account) {
if a == current {
list = append(list[:i], list[i+1:]...)
}
})
}
func ForEach(callback func(int, *Account)) {
for index, account := range list {
callback(index, account)
}
}
func (a *Account) Validate() error {
if a.Name == "" {
return errors.New("missing required field (Name) for account")
} else if a.Passphrase == "" {
return errors.New("missing required field (Passphrase) for account")
} else if a.dbDir == "" {
return errors.New("missing required field (dbDir) for account")
} else if a.db == nil {
return errors.New("connecting to the db failed with the provided (dbDir/Passphrase) for account")
} else if a.network == nil {
return errors.New("missing required field (network) for account")
} else if a.GrpcServer == nil {
return errors.New("missing required field (GrpcServer) for Account")
}
return nil
}
func (a *Account) Open() error {
if err := a.initNode(); err != nil {
a.Close()
return err
}
if a.initOnly {
return nil
}
// start
if err := a.startNetwork(); err != nil {
a.Close()
return err
}
if err := a.startGrpcServer(); err != nil {
a.Close()
return err
}
if err := a.startGQL(); err != nil {
a.Close()
return err
}
if err := a.startNode(); err != nil {
a.Close()
return err
}
if a.withBot {
if err := a.StartBot(); err != nil {
return err
}
}
logger().Info("account started",
zap.String("pubkey", a.node.PubKey()),
zap.String("grpc-bind", a.GrpcBind),
zap.String("gql-bind", a.GQLBind),
zap.Int("p2p-api", int(p2papi.Version)),
zap.Int("node-api", int(nodeapi.Version)),
zap.String("version", core.Version),
zap.String("git-tag", core.GitTag),
zap.String("git-sha", core.GitSha),
zap.String("git-branch", core.GitBranch),
zap.String("build-mode", core.BuildMode),
zap.String("commit-date", core.CommitDate().String()),
zap.String("db", a.dbPath()),
zap.String("name", a.Name),
)
return nil
}
func (a *Account) Close() {
if a.node != nil {
_ = a.node.Close()
}
if a.network != nil {
_ = a.network.Close()
}
if a.db != nil {
_ = a.db.Close()
}
if a.serverTracerCloser != nil {
_ = a.serverTracerCloser.Close()
}
if a.dialTracerCloser != nil {
_ = a.dialTracerCloser.Close()
}
if a.ioGrpc != nil {
_ = a.ioGrpc.Listener().Close()
}
if a.grpcListener != nil {
a.grpcListener.Close()
}
if a.BotRunning {
_ = a.StopBot()
}
if a.ring != nil {
a.ring.Close()
}
}
// Database
func (a *Account) dbPath() string {
return a.dbDir + "/berty." + a.Name + ".db"
}
func (a *Account) openDatabase() error {
var err error
a.db, err = sqlcipher.Open(a.dbPath(), []byte(a.Passphrase))
if err != nil {
return errors.Wrap(err, "failed to open sqlcipher")
}
a.db, err = sql.Init(a.db)
if err != nil {
return errors.Wrap(err, "failed to initialize sql")
}
if a.dbDrop {
if err = a.DropDatabase(); err != nil {
return err
}
}
err = sql.Migrate(a.db)
if err != nil {
return errors.Wrap(err, "failed to apply sql migrations")
}
return nil
}
func (a *Account) DropDatabase() error {
var err error
if err = sql.DropDatabase(a.db); err != nil {
return errors.Wrap(err, "failed to drop database")
}
return a.openDatabase()
}
func (a *Account) startNetwork() error {
go func() {
defer a.PanicHandler()
a.errChan <- a.network.Start()
}()
return nil
}
func (a *Account) startGrpcServer() error {
var err error
addr, err := net.ResolveTCPAddr("tcp", a.GrpcBind)
if err != nil {
return err
}
if addr.IP == nil {
addr.IP = net.IP{0, 0, 0, 0}
}
a.grpcListener, err = reuse.Listen(addr.Network(), fmt.Sprintf("%s:%d", addr.IP.String(), addr.Port))
if err != nil {
defer a.PanicHandler()
return err
}
go func() {
defer a.PanicHandler()
a.errChan <- a.GrpcServer.Serve(a.grpcListener)
}()
return nil
}
func (a *Account) StartBot() error {
options := append(
[]bot.Option{
bot.WithTCPDaemon(a.GrpcBind),
bot.WithLogger(),
},
bot.GenericOptions()...,
)
b, err := bot.New(options...)
if err != nil {
return errors.Wrap(err, "failed to initialize bot")
}
a.BotRunning = true
go func() {
logger().Debug("starting bot...")
if err := b.Start(); err != nil {
logger().Error("bot error", zap.Error(err))
a.BotRunning = false
defer a.PanicHandler()
a.errChan <- err
}
}()
return nil
}
func (a *Account) StopBot() error {
// TODO: implement bot closing function
// Then set a.BotRunning = false
return errors.New("stop bot not implemented yet")
}
func (a *Account) startGQL() error {
var err error
if a.gqlHandler == nil {
return nil
}
go func() {
defer a.PanicHandler()
a.errChan <- a.GrpcServer.Serve(a.ioGrpc.Listener())
}()
addr, err := net.ResolveTCPAddr("tcp", a.GQLBind)
if err != nil {
return err
}
if addr.IP == nil {
addr.IP = net.IP{0, 0, 0, 0}
}
if a.GQLBind == "" {
a.GQLBind = ":8700"
}
a.gqlListener, err = reuse.Listen(addr.Network(), fmt.Sprintf("%s:%d", addr.IP.String(), addr.Port))
if err != nil {
return err
}
// start gql server
go func() {
defer a.PanicHandler()
a.errChan <- http.Serve(a.gqlListener, a.gqlHandler)
}()
return nil
}
func (a *Account) initNode() error {
var err error
// initialize node
a.node, err = node.New(
node.WithP2PGrpcServer(a.GrpcServer),
node.WithNodeGrpcServer(a.GrpcServer),
node.WithSQL(a.db),
node.WithDevice(&entity.Device{Name: a.Name}),
node.WithNetworkDriver(a.network),
node.WithNetworkMetrics(a.metrics),
node.WithInitConfig(),
node.WithSoftwareCrypto(), // FIXME: use hardware impl if available
node.WithConfig(),
node.WithRing(a.ring),
)
if err != nil {
return errors.Wrap(err, "failed to initialize node")
}
return nil
}
func (a *Account) startNode() error {
// start node
go func() {
defer a.PanicHandler()
a.errChan <- a.node.Start(true)
}()
// show banner
if a.banner != "" {
fmt.Println(a.banner)
}
// signal handling
signalChan := make(chan os.Signal, 1)
signal.Notify(
signalChan,
syscall.SIGHUP,
syscall.SIGINT,
syscall.SIGTERM,
syscall.SIGQUIT,
)
go func() {
for {
s := <-signalChan
switch s {
case syscall.SIGHUP: // kill -SIGHUP XXXX
logger().Info("sighup received")
case syscall.SIGINT: // kill -SIGINT XXXX or Ctrl+c
logger().Info("sigint received")
a.errChan <- nil
case syscall.SIGTERM: // kill -SIGTERM XXXX (force stop)
logger().Info("sigterm received")
a.errChan <- nil
case syscall.SIGQUIT: // kill -SIGQUIT XXXX (stop and core dump)
logger().Info("sigquit received")
a.errChan <- nil
default:
a.errChan <- fmt.Errorf("unknown signal received")
}
}
}()
return nil
}
func (a *Account) ErrChan() chan error {
return a.errChan
}
func (a *Account) PanicHandler() {
r := recover()
if r != nil {
err := errors.New(fmt.Sprintf("%+v", r))
logger().Error("panic handler: panic received, send error to errChan", zap.Error(err))
a.errChan <- err
}
}