all: strict unlock API by rpc

accounts/manager.go

@@ -45,7 +45,7 @@ type Manager struct {
 
 // NewManager creates a generic account manager to sign transaction via various
 // supported backends.
-func NewManager(insecureUnlockAllowed bool, backends ...Backend) *Manager {
+func NewManager(config *Config, backends ...Backend) *Manager {
 	// Retrieve the initial list of wallets from the backends and sort by URL
 	var wallets []Wallet
 	for _, backend := range backends {
@@ -60,7 +60,7 @@ func NewManager(insecureUnlockAllowed bool, backends ...Backend) *Manager {
 	}
 	// Assemble the account manager and return
 	am := &Manager{
-		config:   &Config{insecureUnlockAllowed},
+		config:   config,
 		backends: make(map[reflect.Type][]Backend),
 		updaters: subs,
 		updates:  updates,

cmd/geth/main.go

@@ -397,18 +397,9 @@ func startNode(ctx *cli.Context, stack *node.Node) {
 
 // unlockAccounts unlocks any account specifically requested.
 func unlockAccounts(ctx *cli.Context, stack *node.Node) {
-	// personalExposed checks whether personal API is exposed by http.
-	personalExposed := func() bool {
-		for _, module := range stack.Config().HTTPModules {
-			if module == "personal" {
-				return true
-			}
-		}
-		return false
-	}
-	// If insecure account unlocking is not allowed and account-related APIs are exposed by http,
-	// print warning log to user and skip unlocking.
-	if !stack.Config().InsecureUnlockAllowed && personalExposed() {
+	// If insecure account unlocking is not allowed if node's APIs are exposed to external.
+	// Print warning log to user and skip unlocking.
+	if !stack.Config().InsecureUnlockAllowed && stack.Config().ExtRPCEnabled() {
 		log.Warn("Not safe to unlock account, please enable `allow-insecure-unlock` flag if necessary")
 		return
 	}

eth/api_backend.go

@@ -38,8 +38,9 @@ import (
 
 // EthAPIBackend implements ethapi.Backend for full nodes
 type EthAPIBackend struct {
-	eth *Ethereum
-	gpo *gasprice.Oracle
+	extRPCEnabled bool
+	eth           *Ethereum
+	gpo           *gasprice.Oracle
 }
 
 // ChainConfig returns the active chain configuration.
@@ -213,6 +214,10 @@ func (b *EthAPIBackend) AccountManager() *accounts.Manager {
 	return b.eth.AccountManager()
 }
 
+func (b *EthAPIBackend) ExtRPCEnabled() bool {
+	return b.extRPCEnabled
+}
+
 func (b *EthAPIBackend) BloomStatus() (uint64, uint64) {
 	sections, _, _ := b.eth.bloomIndexer.Sections()
 	return params.BloomBitsBlocks, sections

eth/backend.go

@@ -197,7 +197,7 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
 	eth.miner = miner.New(eth, chainConfig, eth.EventMux(), eth.engine, config.MinerRecommit, config.MinerGasFloor, config.MinerGasCeil, eth.isLocalBlock)
 	eth.miner.SetExtra(makeExtraData(config.MinerExtraData))
 
-	eth.APIBackend = &EthAPIBackend{eth, nil}
+	eth.APIBackend = &EthAPIBackend{ctx.ExtRPCEnabled(), eth, nil}
 	gpoParams := config.GPO
 	if gpoParams.Default == nil {
 		gpoParams.Default = config.MinerGasPrice

internal/ethapi/api.go

@@ -318,9 +318,10 @@ func (s *PrivateAccountAPI) ImportRawKey(privkey string, password string) (commo
 // the given password for duration seconds. If duration is nil it will use a
 // default of 300 seconds. It returns an indication if the account was unlocked.
 func (s *PrivateAccountAPI) UnlockAccount(ctx context.Context, addr common.Address, password string, duration *uint64) (bool, error) {
-	// When the API is exposed by HTTP, unless the user explicitly specifies to
-	// allow the insecure account unlocking, otherwise it is disabled.
-	if isHttp, ok := ctx.Value("http").(bool); ok && isHttp && !s.b.AccountManager().Config().InsecureUnlockAllowed {
+	// When the API is exposed by external RPC(http, ws etc), unless the user
+	// explicitly specifies to allow the insecure account unlocking, otherwise
+	// it is disabled.
+	if s.b.ExtRPCEnabled() && !s.b.AccountManager().Config().InsecureUnlockAllowed {
 		return false, errors.New("not safe to unlock account, please enable `allow-insecure-unlock` flag if necessary")
 	}
 

internal/ethapi/backend.go

@@ -44,6 +44,7 @@ type Backend interface {
 	ChainDb() ethdb.Database
 	EventMux() *event.TypeMux
 	AccountManager() *accounts.Manager
+	ExtRPCEnabled() bool
 
 	// BlockChain API
 	SetHead(number uint64)

les/api_backend.go

@@ -39,8 +39,9 @@ import (
 )
 
 type LesApiBackend struct {
-	eth *LightEthereum
-	gpo *gasprice.Oracle
+	extRPCEnabled bool
+	eth           *LightEthereum
+	gpo           *gasprice.Oracle
 }
 
 func (b *LesApiBackend) ChainConfig() *params.ChainConfig {
@@ -187,6 +188,10 @@ func (b *LesApiBackend) AccountManager() *accounts.Manager {
 	return b.eth.accountManager
 }
 
+func (b *LesApiBackend) ExtRPCEnabled() bool {
+	return b.extRPCEnabled
+}
+
 func (b *LesApiBackend) BloomStatus() (uint64, uint64) {
 	if b.eth.bloomIndexer == nil {
 		return 0, 0

les/backend.go

@@ -166,7 +166,7 @@ func New(ctx *node.ServiceContext, config *eth.Config) (*LightEthereum, error) {
 		log.Warn("Ultra light client is enabled", "trustedNodes", len(leth.protocolManager.ulc.trustedKeys), "minTrustedFraction", leth.protocolManager.ulc.minTrustedFraction)
 		leth.blockchain.DisableCheckFreq()
 	}
-	leth.ApiBackend = &LesApiBackend{leth, nil}
+	leth.ApiBackend = &LesApiBackend{ctx.ExtRPCEnabled(), leth, nil}
 
 	gpoParams := config.GPO
 	if gpoParams.Default == nil {

node/config.go

@@ -109,29 +109,6 @@ type Config struct {
 	// for ephemeral nodes).
 	HTTPPort int `toml:",omitempty"`
 
-	// GraphQLHost is the host interface on which to start the GraphQL server. If this
-	// field is empty, no GraphQL API endpoint will be started.
-	GraphQLHost string `toml:",omitempty"`
-
-	// GraphQLPort is the TCP port number on which to start the GraphQL server. The
-	// default zero value is/ valid and will pick a port number randomly (useful
-	// for ephemeral nodes).
-	GraphQLPort int `toml:",omitempty"`
-
-	// GraphQLCors is the Cross-Origin Resource Sharing header to send to requesting
-	// clients. Please be aware that CORS is a browser enforced security, it's fully
-	// useless for custom HTTP clients.
-	GraphQLCors []string `toml:",omitempty"`
-
-	// GraphQLVirtualHosts is the list of virtual hostnames which are allowed on incoming requests.
-	// This is by default {'localhost'}. Using this prevents attacks like
-	// DNS rebinding, which bypasses SOP by simply masquerading as being within the same
-	// origin. These attacks do not utilize CORS, since they are not cross-domain.
-	// By explicitly checking the Host-header, the server will not allow requests
-	// made against the server with a malicious host domain.
-	// Requests using ip address directly are not affected
-	GraphQLVirtualHosts []string `toml:",omitempty"`
-
 	// HTTPCors is the Cross-Origin Resource Sharing header to send to requesting
 	// clients. Please be aware that CORS is a browser enforced security, it's fully
 	// useless for custom HTTP clients.
@@ -181,6 +158,29 @@ type Config struct {
 	// private APIs to untrusted users is a major security risk.
 	WSExposeAll bool `toml:",omitempty"`
 
+	// GraphQLHost is the host interface on which to start the GraphQL server. If this
+	// field is empty, no GraphQL API endpoint will be started.
+	GraphQLHost string `toml:",omitempty"`
+
+	// GraphQLPort is the TCP port number on which to start the GraphQL server. The
+	// default zero value is/ valid and will pick a port number randomly (useful
+	// for ephemeral nodes).
+	GraphQLPort int `toml:",omitempty"`
+
+	// GraphQLCors is the Cross-Origin Resource Sharing header to send to requesting
+	// clients. Please be aware that CORS is a browser enforced security, it's fully
+	// useless for custom HTTP clients.
+	GraphQLCors []string `toml:",omitempty"`
+
+	// GraphQLVirtualHosts is the list of virtual hostnames which are allowed on incoming requests.
+	// This is by default {'localhost'}. Using this prevents attacks like
+	// DNS rebinding, which bypasses SOP by simply masquerading as being within the same
+	// origin. These attacks do not utilize CORS, since they are not cross-domain.
+	// By explicitly checking the Host-header, the server will not allow requests
+	// made against the server with a malicious host domain.
+	// Requests using ip address directly are not affected
+	GraphQLVirtualHosts []string `toml:",omitempty"`
+
 	// Logger is a custom logger to use with the p2p.Server.
 	Logger log.Logger `toml:",omitempty"`
 
@@ -273,6 +273,12 @@ func DefaultWSEndpoint() string {
 	return config.WSEndpoint()
 }
 
+// ExtRPCEnabled returns the indicator whether node enables the external
+// RPC(http, ws or graphql).
+func (c *Config) ExtRPCEnabled() bool {
+	return c.HTTPHost != "" || c.WSHost != "" || c.GraphQLHost != ""
+}
+
 // NodeName returns the devp2p node identifier.
 func (c *Config) NodeName() string {
 	name := c.name()
@@ -500,7 +506,7 @@ func makeAccountManager(conf *Config) (*accounts.Manager, string, error) {
 		}
 	}
 
-	return accounts.NewManager(conf.InsecureUnlockAllowed, backends...), ephemeral, nil
+	return accounts.NewManager(&accounts.Config{InsecureUnlockAllowed: conf.InsecureUnlockAllowed}, backends...), ephemeral, nil
 }
 
 var warnLock sync.Mutex

node/service.go

@@ -68,6 +68,12 @@ func (ctx *ServiceContext) Service(service interface{}) error {
 	return ErrServiceUnknown
 }
 
+// ExtRPCEnabled returns the indicator whether node enables the external
+// RPC(http, ws or graphql).
+func (ctx *ServiceContext) ExtRPCEnabled() bool {
+	return ctx.config.ExtRPCEnabled()
+}
+
 // ServiceConstructor is the function signature of the constructors needed to be
 // registered for service instantiation.
 type ServiceConstructor func(ctx *ServiceContext) (Service, error)

rpc/http.go

@@ -256,7 +256,6 @@ func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	ctx = context.WithValue(ctx, "remote", r.RemoteAddr)
 	ctx = context.WithValue(ctx, "scheme", r.Proto)
 	ctx = context.WithValue(ctx, "local", r.Host)
-	ctx = context.WithValue(ctx, "http", true)
 	if ua := r.Header.Get("User-Agent"); ua != "" {
 		ctx = context.WithValue(ctx, "User-Agent", ua)
 	}

signer/core/api.go

@@ -140,7 +140,7 @@ func StartClefAccountManager(ksLocation string, nousb, lightKDF bool) *accounts.
 		}
 	}
 	// Clef doesn't allow insecure http account unlock.
-	return accounts.NewManager(false, backends...)
+	return accounts.NewManager(&accounts.Config{InsecureUnlockAllowed: false}, backends...)
 }
 
 // MetadataFromContext extracts Metadata from a given context.Context