From 057af8c5c842714feff675faeab089e497ec1739 Mon Sep 17 00:00:00 2001 From: Janos Guljas Date: Fri, 1 Dec 2017 10:32:14 +0100 Subject: [PATCH 01/13] swarm: add CLI --ens-endpoint flag (#14386) Implement a CLI flag that can be repeated to allow multiple ENS resolvers for different TLDs. --- cmd/swarm/main.go | 103 ++++++++++++++---------------- cmd/swarm/main_test.go | 141 +++++++++++++++++++++++++++++++++++++++++ swarm/api/api.go | 64 +++++++++++++++++++ swarm/api/api_test.go | 117 ++++++++++++++++++++++++++++++++++ swarm/swarm.go | 97 +++++++++++++++++++++++++--- 5 files changed, 459 insertions(+), 63 deletions(-) create mode 100644 cmd/swarm/main_test.go diff --git a/cmd/swarm/main.go b/cmd/swarm/main.go index 603fd9b941..98a0352dca 100644 --- a/cmd/swarm/main.go +++ b/cmd/swarm/main.go @@ -17,11 +17,9 @@ package main import ( - "context" "crypto/ecdsa" "fmt" "io/ioutil" - "math/big" "os" "os/signal" "runtime" @@ -29,14 +27,13 @@ import ( "strconv" "strings" "syscall" - "time" + "unicode" "github.com/ethereum/go-ethereum/accounts" "github.com/ethereum/go-ethereum/accounts/keystore" "github.com/ethereum/go-ethereum/cmd/utils" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/console" - "github.com/ethereum/go-ethereum/contracts/ens" "github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/ethclient" "github.com/ethereum/go-ethereum/internal/debug" @@ -45,7 +42,6 @@ import ( "github.com/ethereum/go-ethereum/p2p" "github.com/ethereum/go-ethereum/p2p/discover" "github.com/ethereum/go-ethereum/params" - "github.com/ethereum/go-ethereum/rpc" "github.com/ethereum/go-ethereum/swarm" bzzapi "github.com/ethereum/go-ethereum/swarm/api" "gopkg.in/urfave/cli.v1" @@ -101,6 +97,10 @@ var ( Name: "sync", Usage: "Swarm Syncing enabled (default true)", } + EnsEndpointsFlag = cli.StringSliceFlag{ + Name: "ens-endpoint", + Usage: "ENS API endpoint for a TLD and with contract address, can be repeated, format [tld:][contract-addr@]url", + } EnsAPIFlag = cli.StringFlag{ Name: "ens-api", Usage: "URL of the Ethereum API provider to use for ENS record lookups", @@ -323,6 +323,7 @@ DEPRECATED: use 'swarm db clean'. utils.PasswordFileFlag, // bzzd-specific flags CorsStringFlag, + EnsEndpointsFlag, EnsAPIFlag, EnsAddrFlag, SwarmConfigPathFlag, @@ -416,38 +417,6 @@ func bzzd(ctx *cli.Context) error { return nil } -// detectEnsAddr determines the ENS contract address by getting both the -// version and genesis hash using the client and matching them to either -// mainnet or testnet addresses -func detectEnsAddr(client *rpc.Client) (common.Address, error) { - ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second) - defer cancel() - - var version string - if err := client.CallContext(ctx, &version, "net_version"); err != nil { - return common.Address{}, err - } - - block, err := ethclient.NewClient(client).BlockByNumber(ctx, big.NewInt(0)) - if err != nil { - return common.Address{}, err - } - - switch { - - case version == "1" && block.Hash() == params.MainnetGenesisHash: - log.Info("using Mainnet ENS contract address", "addr", ens.MainNetAddress) - return ens.MainNetAddress, nil - - case version == "3" && block.Hash() == params.TestnetGenesisHash: - log.Info("using Testnet ENS contract address", "addr", ens.TestNetAddress) - return ens.TestNetAddress, nil - - default: - return common.Address{}, fmt.Errorf("unknown version and genesis hash: %s %s", version, block.Hash()) - } -} - func registerBzzService(ctx *cli.Context, stack *node.Node) { prvkey := getAccount(ctx, stack) @@ -476,6 +445,7 @@ func registerBzzService(ctx *cli.Context, stack *node.Node) { utils.Fatalf("SWAP is enabled but --swap-api is not set") } + ensEndpoints := ctx.GlobalStringSlice(EnsEndpointsFlag.Name) ensapi := ctx.GlobalString(EnsAPIFlag.Name) ensAddr := ctx.GlobalString(EnsAddrFlag.Name) @@ -491,34 +461,59 @@ func registerBzzService(ctx *cli.Context, stack *node.Node) { } } - var ensClient *ethclient.Client + ensClientConfigs := []swarm.ENSClientConfig{} if ensapi != "" { - log.Info("connecting to ENS API", "url", ensapi) - client, err := rpc.Dial(ensapi) - if err != nil { - return nil, fmt.Errorf("error connecting to ENS API %s: %s", ensapi, err) - } - ensClient = ethclient.NewClient(client) - - if ensAddr != "" { - bzzconfig.EnsRoot = common.HexToAddress(ensAddr) - } else { - ensAddr, err := detectEnsAddr(client) - if err == nil { - bzzconfig.EnsRoot = ensAddr - } else { - log.Warn(fmt.Sprintf("could not determine ENS contract address, using default %s", bzzconfig.EnsRoot), "err", err) + ensClientConfigs = append(ensClientConfigs, swarm.ENSClientConfig{ + Endpoint: ensapi, + ContractAddress: ensAddr, + }) + } + if ensEndpoints != nil { + for _, s := range ensEndpoints { + if s != "" { + ensClientConfigs = append(ensClientConfigs, parseFlagEnsEndpoint(s)) } } } + if len(ensClientConfigs) == 0 { + log.Warn("No ENS, please specify non-empty --ens-api or --ens-endpoint to use domain name resolution") + } - return swarm.NewSwarm(ctx, swapClient, ensClient, bzzconfig, swapEnabled, syncEnabled, cors) + return swarm.NewSwarm(ctx, swapClient, ensClientConfigs, bzzconfig, swapEnabled, syncEnabled, cors) } if err := stack.Register(boot); err != nil { utils.Fatalf("Failed to register the Swarm service: %v", err) } } +func parseFlagEnsEndpoint(s string) swarm.ENSClientConfig { + isAllLetterString := func(s string) bool { + for _, r := range s { + if !unicode.IsLetter(r) { + return false + } + } + return true + } + endpoint := s + var addr, tld string + if i := strings.Index(endpoint, ":"); i > 0 { + if isAllLetterString(endpoint[:i]) && len(endpoint) > i+2 && endpoint[i+1:i+3] != "//" { + tld = endpoint[:i] + endpoint = endpoint[i+1:] + } + } + if i := strings.Index(endpoint, "@"); i > 0 { + addr = endpoint[:i] + endpoint = endpoint[i+1:] + } + return swarm.ENSClientConfig{ + Endpoint: endpoint, + ContractAddress: addr, + TLD: tld, + } +} + func getAccount(ctx *cli.Context, stack *node.Node) *ecdsa.PrivateKey { keyid := ctx.GlobalString(SwarmAccountFlag.Name) diff --git a/cmd/swarm/main_test.go b/cmd/swarm/main_test.go new file mode 100644 index 0000000000..054034434b --- /dev/null +++ b/cmd/swarm/main_test.go @@ -0,0 +1,141 @@ +// 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 . + +package main + +import ( + "testing" + + "github.com/ethereum/go-ethereum/swarm" +) + +func TestParseFlagEnsEndpoint(t *testing.T) { + for _, x := range []struct { + description string + value string + config swarm.ENSClientConfig + }{ + { + description: "IPC endpoint", + value: "/data/testnet/geth.ipc", + config: swarm.ENSClientConfig{ + Endpoint: "/data/testnet/geth.ipc", + }, + }, + { + description: "HTTP endpoint", + value: "http://127.0.0.1:1234", + config: swarm.ENSClientConfig{ + Endpoint: "http://127.0.0.1:1234", + }, + }, + { + description: "WS endpoint", + value: "ws://127.0.0.1:1234", + config: swarm.ENSClientConfig{ + Endpoint: "ws://127.0.0.1:1234", + }, + }, + { + description: "IPC Endpoint and TLD", + value: "test:/data/testnet/geth.ipc", + config: swarm.ENSClientConfig{ + Endpoint: "/data/testnet/geth.ipc", + TLD: "test", + }, + }, + { + description: "HTTP endpoint and TLD", + value: "test:http://127.0.0.1:1234", + config: swarm.ENSClientConfig{ + Endpoint: "http://127.0.0.1:1234", + TLD: "test", + }, + }, + { + description: "WS endpoint and TLD", + value: "test:ws://127.0.0.1:1234", + config: swarm.ENSClientConfig{ + Endpoint: "ws://127.0.0.1:1234", + TLD: "test", + }, + }, + { + description: "IPC Endpoint and contract address", + value: "314159265dD8dbb310642f98f50C066173C1259b@/data/testnet/geth.ipc", + config: swarm.ENSClientConfig{ + Endpoint: "/data/testnet/geth.ipc", + ContractAddress: "314159265dD8dbb310642f98f50C066173C1259b", + }, + }, + { + description: "HTTP endpoint and contract address", + value: "314159265dD8dbb310642f98f50C066173C1259b@http://127.0.0.1:1234", + config: swarm.ENSClientConfig{ + Endpoint: "http://127.0.0.1:1234", + ContractAddress: "314159265dD8dbb310642f98f50C066173C1259b", + }, + }, + { + description: "WS endpoint and contract address", + value: "314159265dD8dbb310642f98f50C066173C1259b@ws://127.0.0.1:1234", + config: swarm.ENSClientConfig{ + Endpoint: "ws://127.0.0.1:1234", + ContractAddress: "314159265dD8dbb310642f98f50C066173C1259b", + }, + }, + { + description: "IPC Endpoint, TLD and contract address", + value: "test:314159265dD8dbb310642f98f50C066173C1259b@/data/testnet/geth.ipc", + config: swarm.ENSClientConfig{ + Endpoint: "/data/testnet/geth.ipc", + ContractAddress: "314159265dD8dbb310642f98f50C066173C1259b", + TLD: "test", + }, + }, + { + description: "HTTP endpoint, TLD and contract address", + value: "eth:314159265dD8dbb310642f98f50C066173C1259b@http://127.0.0.1:1234", + config: swarm.ENSClientConfig{ + Endpoint: "http://127.0.0.1:1234", + ContractAddress: "314159265dD8dbb310642f98f50C066173C1259b", + TLD: "eth", + }, + }, + { + description: "WS endpoint, TLD and contract address", + value: "eth:314159265dD8dbb310642f98f50C066173C1259b@ws://127.0.0.1:1234", + config: swarm.ENSClientConfig{ + Endpoint: "ws://127.0.0.1:1234", + ContractAddress: "314159265dD8dbb310642f98f50C066173C1259b", + TLD: "eth", + }, + }, + } { + t.Run(x.description, func(t *testing.T) { + config := parseFlagEnsEndpoint(x.value) + if config.Endpoint != x.config.Endpoint { + t.Errorf("expected Endpoint %q, got %q", x.config.Endpoint, config.Endpoint) + } + if config.ContractAddress != x.config.ContractAddress { + t.Errorf("expected ContractAddress %q, got %q", x.config.ContractAddress, config.ContractAddress) + } + if config.TLD != x.config.TLD { + t.Errorf("expected TLD %q, got %q", x.config.TLD, config.TLD) + } + }) + } +} diff --git a/swarm/api/api.go b/swarm/api/api.go index 79de29a1cf..d0c3754e00 100644 --- a/swarm/api/api.go +++ b/swarm/api/api.go @@ -17,6 +17,7 @@ package api import ( + "errors" "fmt" "io" "net/http" @@ -40,6 +41,69 @@ type Resolver interface { Resolve(string) (common.Hash, error) } +// errNoResolver is returned by MultiResolver.Resolve if no resolver +// can be found for the address. +var errNoResolver = errors.New("no resolver") + +// MultiResolver is used to resolve URL addresses based on their TLDs. +// Each TLD can have multiple resolvers, and the resoluton from the +// first one in the sequence will be returned. +type MultiResolver struct { + resolvers map[string][]Resolver +} + +// MultiResolverOption sets options for MultiResolver and is used as +// arguments for its constructor. +type MultiResolverOption func(*MultiResolver) + +// MultiResolverOptionWithResolver adds a Resolver to a list of resolvers +// for a specific TLD. If TLD is an empty string, the resolver will be added +// to the list of default resolver, the ones that will be used for resolution +// of addresses which do not have their TLD resolver specified. +func MultiResolverOptionWithResolver(r Resolver, tld string) MultiResolverOption { + return func(m *MultiResolver) { + if _, ok := m.resolvers[tld]; !ok { + m.resolvers[tld] = []Resolver{} + } + m.resolvers[tld] = append(m.resolvers[tld], r) + } +} + +// NewMultiResolver creates a new instance of MultiResolver. +func NewMultiResolver(opts ...MultiResolverOption) (m *MultiResolver) { + m = &MultiResolver{ + resolvers: map[string][]Resolver{}, + } + for _, o := range opts { + o(m) + } + return m +} + +// Resolve resolves address by choosing a Resolver by TLD. +// If there are more default Resolvers, or for a specific TLD, +// the Hash from the the first one which does not return error +// will be returned. +func (m MultiResolver) Resolve(addr string) (h common.Hash, err error) { + rs, _ := m.resolvers[""] + if i := strings.LastIndex(addr, "."); i >= 0 { + rstld, ok := m.resolvers[addr[i+1:]] + if ok { + rs = rstld + } + } + if rs == nil { + return h, errNoResolver + } + for _, r := range rs { + h, err = r.Resolve(addr) + if err == nil { + return + } + } + return +} + /* Api implements webserver/file system related content storage and retrieval on top of the dpa diff --git a/swarm/api/api_test.go b/swarm/api/api_test.go index f9caed27f5..36cbdb83c5 100644 --- a/swarm/api/api_test.go +++ b/swarm/api/api_test.go @@ -237,3 +237,120 @@ func TestAPIResolve(t *testing.T) { }) } } + +func TestMultiResolver(t *testing.T) { + doesntResolve := newTestResolver("") + + ethAddr := "swarm.eth" + ethHash := "0x2222222222222222222222222222222222222222222222222222222222222222" + ethResolve := newTestResolver(ethHash) + + testAddr := "swarm.test" + testHash := "0x1111111111111111111111111111111111111111111111111111111111111111" + testResolve := newTestResolver(testHash) + + tests := []struct { + desc string + r Resolver + addr string + result string + err error + }{ + { + desc: "No resolvers, returns error", + r: NewMultiResolver(), + err: errNoResolver, + }, + { + desc: "One default resolver, returns resolved address", + r: NewMultiResolver(MultiResolverOptionWithResolver(ethResolve, "")), + addr: ethAddr, + result: ethHash, + }, + { + desc: "Two default resolvers, returns resolved address", + r: NewMultiResolver( + MultiResolverOptionWithResolver(ethResolve, ""), + MultiResolverOptionWithResolver(ethResolve, ""), + ), + addr: ethAddr, + result: ethHash, + }, + { + desc: "Two default resolvers, first doesn't resolve, returns resolved address", + r: NewMultiResolver( + MultiResolverOptionWithResolver(doesntResolve, ""), + MultiResolverOptionWithResolver(ethResolve, ""), + ), + addr: ethAddr, + result: ethHash, + }, + { + desc: "Default resolver doesn't resolve, tld resolver resolve, returns resolved address", + r: NewMultiResolver( + MultiResolverOptionWithResolver(doesntResolve, ""), + MultiResolverOptionWithResolver(ethResolve, "eth"), + ), + addr: ethAddr, + result: ethHash, + }, + { + desc: "Three TLD resolvers, third resolves, returns resolved address", + r: NewMultiResolver( + MultiResolverOptionWithResolver(doesntResolve, "eth"), + MultiResolverOptionWithResolver(doesntResolve, "eth"), + MultiResolverOptionWithResolver(ethResolve, "eth"), + ), + addr: ethAddr, + result: ethHash, + }, + { + desc: "One TLD resolver doesn't resolve, returns error", + r: NewMultiResolver( + MultiResolverOptionWithResolver(doesntResolve, ""), + MultiResolverOptionWithResolver(ethResolve, "eth"), + ), + addr: ethAddr, + result: ethHash, + }, + { + desc: "One defautl and one TLD resolver, all doesn't resolve, returns error", + r: NewMultiResolver( + MultiResolverOptionWithResolver(doesntResolve, ""), + MultiResolverOptionWithResolver(doesntResolve, "eth"), + ), + addr: ethAddr, + result: ethHash, + err: errors.New(`DNS name not found: "swarm.eth"`), + }, + { + desc: "Two TLD resolvers, both resolve, returns resolved address", + r: NewMultiResolver( + MultiResolverOptionWithResolver(ethResolve, "eth"), + MultiResolverOptionWithResolver(testResolve, "test"), + ), + addr: testAddr, + result: testHash, + }, + } + for _, x := range tests { + t.Run(x.desc, func(t *testing.T) { + res, err := x.r.Resolve(x.addr) + if err == nil { + if x.err != nil { + t.Fatalf("expected error %q, got result %q", x.err, res.Hex()) + } + if res.Hex() != x.result { + t.Fatalf("expected result %q, got %q", x.result, res.Hex()) + } + } else { + if x.err == nil { + t.Fatalf("expected no error, got %q", err) + } + if err.Error() != x.err.Error() { + t.Fatalf("expected error %q, got %q", x.err, err) + } + } + }) + } +} diff --git a/swarm/swarm.go b/swarm/swarm.go index 9db15325ae..9b6abc5b96 100644 --- a/swarm/swarm.go +++ b/swarm/swarm.go @@ -21,7 +21,9 @@ import ( "context" "crypto/ecdsa" "fmt" + "math/big" "net" + "time" "github.com/ethereum/go-ethereum/accounts/abi/bind" "github.com/ethereum/go-ethereum/common" @@ -33,6 +35,7 @@ import ( "github.com/ethereum/go-ethereum/node" "github.com/ethereum/go-ethereum/p2p" "github.com/ethereum/go-ethereum/p2p/discover" + "github.com/ethereum/go-ethereum/params" "github.com/ethereum/go-ethereum/rpc" "github.com/ethereum/go-ethereum/swarm/api" httpapi "github.com/ethereum/go-ethereum/swarm/api/http" @@ -76,7 +79,7 @@ func (self *Swarm) API() *SwarmAPI { // creates a new swarm service instance // implements node.Service -func NewSwarm(ctx *node.ServiceContext, backend chequebook.Backend, ensClient *ethclient.Client, config *api.Config, swapEnabled, syncEnabled bool, cors string) (self *Swarm, err error) { +func NewSwarm(ctx *node.ServiceContext, backend chequebook.Backend, ensClientConfigs []ENSClientConfig, config *api.Config, swapEnabled, syncEnabled bool, cors string) (self *Swarm, err error) { if bytes.Equal(common.FromHex(config.PublicKey), storage.ZeroKey) { return nil, fmt.Errorf("empty public key") } @@ -133,18 +136,22 @@ func NewSwarm(ctx *node.ServiceContext, backend chequebook.Backend, ensClient *e self.dpa = storage.NewDPA(dpaChunkStore, self.config.ChunkerParams) log.Debug(fmt.Sprintf("-> Content Store API")) - // set up high level api - transactOpts := bind.NewKeyedTransactor(self.privateKey) - - if ensClient == nil { - log.Warn("No ENS, please specify non-empty --ens-api to use domain name resolution") - } else { - self.dns, err = ens.NewENS(transactOpts, config.EnsRoot, ensClient) + if len(ensClientConfigs) == 1 { + self.dns, err = newEnsClient(ensClientConfigs[0].Endpoint, ensClientConfigs[0].ContractAddress, config) if err != nil { return nil, err } + } else if len(ensClientConfigs) > 1 { + opts := []api.MultiResolverOption{} + for _, c := range ensClientConfigs { + r, err := newEnsClient(c.Endpoint, c.ContractAddress, config) + if err != nil { + return nil, err + } + opts = append(opts, api.MultiResolverOptionWithResolver(r, c.TLD)) + } + self.dns = api.NewMultiResolver(opts...) } - log.Debug(fmt.Sprintf("-> Swarm Domain Name Registrar @ address %v", config.EnsRoot.Hex())) self.api = api.NewApi(self.dpa, self.dns) // Manifests for Smart Hosting @@ -156,6 +163,78 @@ func NewSwarm(ctx *node.ServiceContext, backend chequebook.Backend, ensClient *e return self, nil } +// ENSClientConfig holds information to construct ENS resolver. If TLD is non-empty, +// the resolver will be used only for that TLD. If ContractAddress is empty, +// it will be discovered by the client, or used one from the configuration. +type ENSClientConfig struct { + Endpoint string + ContractAddress string + TLD string +} + +// newEnsClient creates a new ENS client for that is a consumer of +// a ENS API on a specific endpoint. It is used as a helper function +// for creating multiple resolvers in NewSwarm function. +func newEnsClient(endpoint, addr string, config *api.Config) (*ens.ENS, error) { + log.Info("connecting to ENS API", "url", endpoint) + client, err := rpc.Dial(endpoint) + if err != nil { + return nil, fmt.Errorf("error connecting to ENS API %s: %s", endpoint, err) + } + ensClient := ethclient.NewClient(client) + + ensRoot := config.EnsRoot + if addr != "" { + ensRoot = common.HexToAddress(addr) + } else { + a, err := detectEnsAddr(client) + if err == nil { + ensRoot = a + } else { + log.Warn(fmt.Sprintf("could not determine ENS contract address, using default %s", ensRoot), "err", err) + } + } + transactOpts := bind.NewKeyedTransactor(config.Swap.PrivateKey()) + dns, err := ens.NewENS(transactOpts, ensRoot, ensClient) + if err != nil { + return nil, err + } + log.Debug(fmt.Sprintf("-> Swarm Domain Name Registrar %v @ address %v", endpoint, ensRoot.Hex())) + return dns, err +} + +// detectEnsAddr determines the ENS contract address by getting both the +// version and genesis hash using the client and matching them to either +// mainnet or testnet addresses +func detectEnsAddr(client *rpc.Client) (common.Address, error) { + ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second) + defer cancel() + + var version string + if err := client.CallContext(ctx, &version, "net_version"); err != nil { + return common.Address{}, err + } + + block, err := ethclient.NewClient(client).BlockByNumber(ctx, big.NewInt(0)) + if err != nil { + return common.Address{}, err + } + + switch { + + case version == "1" && block.Hash() == params.MainnetGenesisHash: + log.Info("using Mainnet ENS contract address", "addr", ens.MainNetAddress) + return ens.MainNetAddress, nil + + case version == "3" && block.Hash() == params.TestnetGenesisHash: + log.Info("using Testnet ENS contract address", "addr", ens.TestNetAddress) + return ens.TestNetAddress, nil + + default: + return common.Address{}, fmt.Errorf("unknown version and genesis hash: %s %s", version, block.Hash()) + } +} + /* Start is called when the stack is started * starts the network kademlia hive peer management From 7898e0d585ac16ca80ddef3ef6933cc6d12ba576 Mon Sep 17 00:00:00 2001 From: Janos Guljas Date: Mon, 4 Dec 2017 12:44:24 +0100 Subject: [PATCH 02/13] swarm: multiple --ens-api flags Allow multiple --ens-api flags to be specified with value format [tld:][contract-addr@]url. Backward compatibility with only one --ens-api flag and --ens-addr flag is preserved and conflict cases are handled: - multiple --ens-api with --ens-addr returns an error - single --ens-api with contract address and --ens-addr with different contract address returns an error Previously implemented --ens-endpoint is removed. Its functionality is replaced with multiple --ens-api flags. --- cmd/swarm/main.go | 48 ++++++++++++++++++++++++++---------------- cmd/swarm/main_test.go | 4 ++-- 2 files changed, 32 insertions(+), 20 deletions(-) diff --git a/cmd/swarm/main.go b/cmd/swarm/main.go index 98a0352dca..70cc42425b 100644 --- a/cmd/swarm/main.go +++ b/cmd/swarm/main.go @@ -97,14 +97,9 @@ var ( Name: "sync", Usage: "Swarm Syncing enabled (default true)", } - EnsEndpointsFlag = cli.StringSliceFlag{ - Name: "ens-endpoint", - Usage: "ENS API endpoint for a TLD and with contract address, can be repeated, format [tld:][contract-addr@]url", - } - EnsAPIFlag = cli.StringFlag{ + EnsAPIFlag = cli.StringSliceFlag{ Name: "ens-api", - Usage: "URL of the Ethereum API provider to use for ENS record lookups", - Value: node.DefaultIPCEndpoint("geth"), + Usage: "ENS API endpoint for a TLD and with contract address, can be repeated, format [tld:][contract-addr@]url", } EnsAddrFlag = cli.StringFlag{ Name: "ens-addr", @@ -323,7 +318,6 @@ DEPRECATED: use 'swarm db clean'. utils.PasswordFileFlag, // bzzd-specific flags CorsStringFlag, - EnsEndpointsFlag, EnsAPIFlag, EnsAddrFlag, SwarmConfigPathFlag, @@ -445,8 +439,7 @@ func registerBzzService(ctx *cli.Context, stack *node.Node) { utils.Fatalf("SWAP is enabled but --swap-api is not set") } - ensEndpoints := ctx.GlobalStringSlice(EnsEndpointsFlag.Name) - ensapi := ctx.GlobalString(EnsAPIFlag.Name) + ensAPIs := ctx.GlobalStringSlice(EnsAPIFlag.Name) ensAddr := ctx.GlobalString(EnsAddrFlag.Name) cors := ctx.GlobalString(CorsStringFlag.Name) @@ -462,21 +455,40 @@ func registerBzzService(ctx *cli.Context, stack *node.Node) { } ensClientConfigs := []swarm.ENSClientConfig{} - if ensapi != "" { + switch len(ensAPIs) { + case 0: ensClientConfigs = append(ensClientConfigs, swarm.ENSClientConfig{ - Endpoint: ensapi, + Endpoint: node.DefaultIPCEndpoint("geth"), ContractAddress: ensAddr, }) - } - if ensEndpoints != nil { - for _, s := range ensEndpoints { + case 1: + // Check if only one --ens-api is specified in order to use --ens-addr value + // to preserve the backward compatibility with single --ens-api flag. + // Multiple + c := parseFlagEnsAPI(ensAPIs[0]) + if ensAddr != "" { + // If contract address is specified in both cases, check for conflict. + if c.ContractAddress != "" && ensAddr != c.ContractAddress { + utils.Fatalf("--ens-addr flag in conflict with --ens-api flag contract address") + } + c.ContractAddress = ensAddr + } + ensClientConfigs = append(ensClientConfigs, c) + default: + // Backward compatibility with single --ens-api flag and --ens-addr is preserved. + // Check for case where multiple --ens-api flags are set with --ens-addr where + // the specified contract address is not clear to which api belongs. + if ensAddr != "" { + utils.Fatalf("--ens-addr flag can not be used with multiple --ens-api flags") + } + for _, s := range ensAPIs { if s != "" { - ensClientConfigs = append(ensClientConfigs, parseFlagEnsEndpoint(s)) + ensClientConfigs = append(ensClientConfigs, parseFlagEnsAPI(s)) } } } if len(ensClientConfigs) == 0 { - log.Warn("No ENS, please specify non-empty --ens-api or --ens-endpoint to use domain name resolution") + log.Warn("No ENS, please specify non-empty --ens-api to use domain name resolution") } return swarm.NewSwarm(ctx, swapClient, ensClientConfigs, bzzconfig, swapEnabled, syncEnabled, cors) @@ -486,7 +498,7 @@ func registerBzzService(ctx *cli.Context, stack *node.Node) { } } -func parseFlagEnsEndpoint(s string) swarm.ENSClientConfig { +func parseFlagEnsAPI(s string) swarm.ENSClientConfig { isAllLetterString := func(s string) bool { for _, r := range s { if !unicode.IsLetter(r) { diff --git a/cmd/swarm/main_test.go b/cmd/swarm/main_test.go index 054034434b..f815f3387d 100644 --- a/cmd/swarm/main_test.go +++ b/cmd/swarm/main_test.go @@ -22,7 +22,7 @@ import ( "github.com/ethereum/go-ethereum/swarm" ) -func TestParseFlagEnsEndpoint(t *testing.T) { +func TestParseFlagEnsAPI(t *testing.T) { for _, x := range []struct { description string value string @@ -126,7 +126,7 @@ func TestParseFlagEnsEndpoint(t *testing.T) { }, } { t.Run(x.description, func(t *testing.T) { - config := parseFlagEnsEndpoint(x.value) + config := parseFlagEnsAPI(x.value) if config.Endpoint != x.config.Endpoint { t.Errorf("expected Endpoint %q, got %q", x.config.Endpoint, config.Endpoint) } From b33a051a487bed2a010b62a6f2dc531157341013 Mon Sep 17 00:00:00 2001 From: Janos Guljas Date: Mon, 4 Dec 2017 22:20:29 +0100 Subject: [PATCH 03/13] swarm: add comment for parseFlagEnsAPI and fix a mistake in comment in code --- cmd/swarm/main.go | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/cmd/swarm/main.go b/cmd/swarm/main.go index 70cc42425b..d9744c011d 100644 --- a/cmd/swarm/main.go +++ b/cmd/swarm/main.go @@ -464,7 +464,6 @@ func registerBzzService(ctx *cli.Context, stack *node.Node) { case 1: // Check if only one --ens-api is specified in order to use --ens-addr value // to preserve the backward compatibility with single --ens-api flag. - // Multiple c := parseFlagEnsAPI(ensAPIs[0]) if ensAddr != "" { // If contract address is specified in both cases, check for conflict. @@ -498,6 +497,9 @@ func registerBzzService(ctx *cli.Context, stack *node.Node) { } } +// parseFlagEnsAPI parses EnsAPIFlag according to format +// [tld:][contract-addr@]url and returns ENSClientConfig structure +// with endpoint, contract address and TLD. func parseFlagEnsAPI(s string) swarm.ENSClientConfig { isAllLetterString := func(s string) bool { for _, r := range s { From 15ad6f27da1bbcb4219f0786d3d08d52c27a4385 Mon Sep 17 00:00:00 2001 From: Janos Guljas Date: Mon, 4 Dec 2017 22:28:11 +0100 Subject: [PATCH 04/13] swarm: check if "--ens-api ''" is specified in order to disable ENS --- cmd/swarm/main.go | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/cmd/swarm/main.go b/cmd/swarm/main.go index d9744c011d..a937a91191 100644 --- a/cmd/swarm/main.go +++ b/cmd/swarm/main.go @@ -462,6 +462,10 @@ func registerBzzService(ctx *cli.Context, stack *node.Node) { ContractAddress: ensAddr, }) case 1: + // Check if "--ens-api ''" is specified in order to disable ENS. + if ensAPIs[0] == "" { + break + } // Check if only one --ens-api is specified in order to use --ens-addr value // to preserve the backward compatibility with single --ens-api flag. c := parseFlagEnsAPI(ensAPIs[0]) From 34edbc8868b84e15d7102a1164c7af8ef4873882 Mon Sep 17 00:00:00 2001 From: Janos Guljas Date: Mon, 4 Dec 2017 22:29:37 +0100 Subject: [PATCH 05/13] swarm/api: remove unneeded assignment in MultiResolverOptionWithResolver --- swarm/api/api.go | 3 --- 1 file changed, 3 deletions(-) diff --git a/swarm/api/api.go b/swarm/api/api.go index d0c3754e00..3682ab3092 100644 --- a/swarm/api/api.go +++ b/swarm/api/api.go @@ -62,9 +62,6 @@ type MultiResolverOption func(*MultiResolver) // of addresses which do not have their TLD resolver specified. func MultiResolverOptionWithResolver(r Resolver, tld string) MultiResolverOption { return func(m *MultiResolver) { - if _, ok := m.resolvers[tld]; !ok { - m.resolvers[tld] = []Resolver{} - } m.resolvers[tld] = append(m.resolvers[tld], r) } } From a758b5cf7ac3111c053bc1275ca849f7aae080e1 Mon Sep 17 00:00:00 2001 From: Janos Guljas Date: Mon, 4 Dec 2017 22:31:00 +0100 Subject: [PATCH 06/13] swarm/api: initialize map with make to comply with the convention --- swarm/api/api.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/swarm/api/api.go b/swarm/api/api.go index 3682ab3092..d6e9d37327 100644 --- a/swarm/api/api.go +++ b/swarm/api/api.go @@ -69,7 +69,7 @@ func MultiResolverOptionWithResolver(r Resolver, tld string) MultiResolverOption // NewMultiResolver creates a new instance of MultiResolver. func NewMultiResolver(opts ...MultiResolverOption) (m *MultiResolver) { m = &MultiResolver{ - resolvers: map[string][]Resolver{}, + resolvers: make(map[string][]Resolver), } for _, o := range opts { o(m) From 3732c15faa83e60024ef46b3def0c105c6912c47 Mon Sep 17 00:00:00 2001 From: Janos Guljas Date: Mon, 4 Dec 2017 22:32:33 +0100 Subject: [PATCH 07/13] swarm/api: remove unneeded blank assignement --- swarm/api/api.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/swarm/api/api.go b/swarm/api/api.go index d6e9d37327..8bd3866434 100644 --- a/swarm/api/api.go +++ b/swarm/api/api.go @@ -82,7 +82,7 @@ func NewMultiResolver(opts ...MultiResolverOption) (m *MultiResolver) { // the Hash from the the first one which does not return error // will be returned. func (m MultiResolver) Resolve(addr string) (h common.Hash, err error) { - rs, _ := m.resolvers[""] + rs := m.resolvers[""] if i := strings.LastIndex(addr, "."); i >= 0 { rstld, ok := m.resolvers[addr[i+1:]] if ok { From e451b65faef95b159c38a607f716866e7bd3310f Mon Sep 17 00:00:00 2001 From: Janos Guljas Date: Mon, 4 Dec 2017 22:41:21 +0100 Subject: [PATCH 08/13] swarm: deprecate --ens-addr CLI flag with a warning message --- cmd/swarm/main.go | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/cmd/swarm/main.go b/cmd/swarm/main.go index a937a91191..48cf032a24 100644 --- a/cmd/swarm/main.go +++ b/cmd/swarm/main.go @@ -101,10 +101,6 @@ var ( Name: "ens-api", Usage: "ENS API endpoint for a TLD and with contract address, can be repeated, format [tld:][contract-addr@]url", } - EnsAddrFlag = cli.StringFlag{ - Name: "ens-addr", - Usage: "ENS contract address (default is detected as testnet or mainnet using --ens-api)", - } SwarmApiFlag = cli.StringFlag{ Name: "bzzapi", Usage: "Swarm HTTP endpoint", @@ -140,6 +136,10 @@ var ( Name: "ethapi", Usage: "DEPRECATED: please use --ens-api and --swap-api", } + DeprecatedEnsAddrFlag = cli.StringFlag{ + Name: "ens-addr", + Usage: "DEPRECATED: ENS contract address, please use --ens-api with contract address according to its format", + } ) var defaultNodeConfig = node.DefaultConfig @@ -319,7 +319,6 @@ DEPRECATED: use 'swarm db clean'. // bzzd-specific flags CorsStringFlag, EnsAPIFlag, - EnsAddrFlag, SwarmConfigPathFlag, SwarmSwapEnabledFlag, SwarmSwapAPIFlag, @@ -338,6 +337,7 @@ DEPRECATED: use 'swarm db clean'. SwarmUploadMimeType, //deprecated flags DeprecatedEthAPIFlag, + DeprecatedEnsAddrFlag, } app.Flags = append(app.Flags, debug.Flags...) app.Before = func(ctx *cli.Context) error { @@ -440,7 +440,11 @@ func registerBzzService(ctx *cli.Context, stack *node.Node) { } ensAPIs := ctx.GlobalStringSlice(EnsAPIFlag.Name) - ensAddr := ctx.GlobalString(EnsAddrFlag.Name) + ensAddr := ctx.GlobalString(DeprecatedEnsAddrFlag.Name) + + if ensAddr != "" { + log.Warn("--ens-addr is no longer a valid command line flag, please use --ens-api to specify contract address.") + } cors := ctx.GlobalString(CorsStringFlag.Name) From 1dc19de5da64962a98a37bbc7b93a3895d2eb6e6 Mon Sep 17 00:00:00 2001 From: Janos Guljas Date: Mon, 4 Dec 2017 22:56:52 +0100 Subject: [PATCH 09/13] swarm/api: use path.Ext instead strings.LastIndex in MultiResolver.Resolve --- swarm/api/api.go | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/swarm/api/api.go b/swarm/api/api.go index 8bd3866434..2d9db022e4 100644 --- a/swarm/api/api.go +++ b/swarm/api/api.go @@ -21,6 +21,7 @@ import ( "fmt" "io" "net/http" + "path" "regexp" "strings" "sync" @@ -83,8 +84,8 @@ func NewMultiResolver(opts ...MultiResolverOption) (m *MultiResolver) { // will be returned. func (m MultiResolver) Resolve(addr string) (h common.Hash, err error) { rs := m.resolvers[""] - if i := strings.LastIndex(addr, "."); i >= 0 { - rstld, ok := m.resolvers[addr[i+1:]] + if ext := path.Ext(addr); ext != "" { + rstld, ok := m.resolvers[ext[1:]] if ok { rs = rstld } From c0a4d9e1e64a09a19484c8c12e24505d9bacbd57 Mon Sep 17 00:00:00 2001 From: Janos Guljas Date: Mon, 18 Dec 2017 16:22:39 +0100 Subject: [PATCH 10/13] cmd/swarm, swarm: disable ENS API by default Specifying ENS API CLI flag, env variable or configuration field is required for ENS resolving. Backward compatibility is preserved with --ens-api="" CLI flag value. --- cmd/swarm/config.go | 23 +++++------------------ swarm/api/config.go | 2 -- swarm/swarm.go | 23 +++++++---------------- 3 files changed, 12 insertions(+), 36 deletions(-) diff --git a/cmd/swarm/config.go b/cmd/swarm/config.go index 9931b12a21..c66a2a4fe5 100644 --- a/cmd/swarm/config.go +++ b/cmd/swarm/config.go @@ -195,17 +195,13 @@ func cmdLineOverride(currentConfig *bzzapi.Config, ctx *cli.Context) *bzzapi.Con utils.Fatalf(SWARM_ERR_SWAP_SET_NO_API) } - //EnsAPIs can be set to "", so can't check for empty string, as it is allowed! if ctx.GlobalIsSet(EnsAPIFlag.Name) { ensAPIs := ctx.GlobalStringSlice(EnsAPIFlag.Name) - // Disable ENS resolver if --ens-api="" is specified + // preserve backward compatibility to disable ENS with --ens-api="" if len(ensAPIs) == 1 && ensAPIs[0] == "" { - currentConfig.EnsDisabled = true - currentConfig.EnsAPIs = nil - } else { - currentConfig.EnsDisabled = false - currentConfig.EnsAPIs = ensAPIs + ensAPIs = nil } + currentConfig.EnsAPIs = ensAPIs } if ensaddr := ctx.GlobalString(DeprecatedEnsAddrFlag.Name); ensaddr != "" { @@ -275,17 +271,8 @@ func envVarsOverride(currentConfig *bzzapi.Config) (config *bzzapi.Config) { utils.Fatalf(SWARM_ERR_SWAP_SET_NO_API) } - //EnsAPIs can be set to "", so can't check for empty string, as it is allowed - if ensapi, exists := os.LookupEnv(SWARM_ENV_ENS_API); exists { - ensAPIs := strings.Split(ensapi, ",") - // Disable ENS resolver if SWARM_ENS_API="" is specified - if len(ensAPIs) == 0 { - currentConfig.EnsDisabled = true - currentConfig.EnsAPIs = nil - } else { - currentConfig.EnsDisabled = false - currentConfig.EnsAPIs = ensAPIs - } + if ensapi := os.Getenv(SWARM_ENV_ENS_API); ensapi != "" { + currentConfig.EnsAPIs = strings.Split(ensapi, ",") } if ensaddr := os.Getenv(SWARM_ENV_ENS_ADDR); ensaddr != "" { diff --git a/swarm/api/config.go b/swarm/api/config.go index 3f1a2a0742..6b224140a4 100644 --- a/swarm/api/config.go +++ b/swarm/api/config.go @@ -48,7 +48,6 @@ type Config struct { *network.SyncParams Contract common.Address EnsRoot common.Address - EnsDisabled bool EnsAPIs []string Path string ListenAddr string @@ -78,7 +77,6 @@ func NewDefaultConfig() (self *Config) { Path: node.DefaultDataDir(), EnsAPIs: nil, EnsRoot: ens.TestNetAddress, - EnsDisabled: false, NetworkId: network.NetworkId, SwapEnabled: false, SyncEnabled: true, diff --git a/swarm/swarm.go b/swarm/swarm.go index ae6805dfda..3c77d6eab6 100644 --- a/swarm/swarm.go +++ b/swarm/swarm.go @@ -138,26 +138,17 @@ func NewSwarm(ctx *node.ServiceContext, backend chequebook.Backend, config *api. self.dpa = storage.NewDPA(dpaChunkStore, self.config.ChunkerParams) log.Debug(fmt.Sprintf("-> Content Store API")) - if !config.EnsDisabled { - if len(config.EnsAPIs) == 0 { - // ENS is enabled and has no specific configuration, - // use defaults - self.dns, err = newEnsClient(node.DefaultIPCEndpoint("geth"), config.EnsRoot, config) + if len(config.EnsAPIs) > 0 { + opts := []api.MultiResolverOption{} + for _, c := range config.EnsAPIs { + tld, endpoint, addr := parseEnsAPIAddress(c) + r, err := newEnsClient(endpoint, addr, config) if err != nil { return nil, err } - } else { - opts := []api.MultiResolverOption{} - for _, c := range config.EnsAPIs { - tld, endpoint, addr := parseEnsAPIAddress(c) - r, err := newEnsClient(endpoint, addr, config) - if err != nil { - return nil, err - } - opts = append(opts, api.MultiResolverOptionWithResolver(r, tld)) - } - self.dns = api.NewMultiResolver(opts...) + opts = append(opts, api.MultiResolverOptionWithResolver(r, tld)) } + self.dns = api.NewMultiResolver(opts...) } self.api = api.NewApi(self.dpa, self.dns) From 0d6a735a72340130acd6b7e536dad5d8bee40d84 Mon Sep 17 00:00:00 2001 From: Janos Guljas Date: Mon, 18 Dec 2017 23:07:48 +0100 Subject: [PATCH 11/13] swarm/api: implement NoResolverError with information about TLD MultiResolver needs to provide information about TLD that has no resolver configured for. --- swarm/api/api.go | 26 ++++++++++++++++++++------ swarm/api/api_test.go | 10 +++++++++- 2 files changed, 29 insertions(+), 7 deletions(-) diff --git a/swarm/api/api.go b/swarm/api/api.go index 2d9db022e4..c143d8a3f9 100644 --- a/swarm/api/api.go +++ b/swarm/api/api.go @@ -17,7 +17,6 @@ package api import ( - "errors" "fmt" "io" "net/http" @@ -42,9 +41,22 @@ type Resolver interface { Resolve(string) (common.Hash, error) } -// errNoResolver is returned by MultiResolver.Resolve if no resolver +// NoResolverError is returned by MultiResolver.Resolve if no resolver // can be found for the address. -var errNoResolver = errors.New("no resolver") +type NoResolverError struct { + TLD string +} + +func NewNoResolverError(tld string) *NoResolverError { + return &NoResolverError{TLD: tld} +} + +func (e *NoResolverError) Error() string { + if e.TLD == "" { + return "no ENS resolver" + } + return fmt.Sprintf("no ENS endpoint configured to resolve .%s TLD names", e.TLD) +} // MultiResolver is used to resolve URL addresses based on their TLDs. // Each TLD can have multiple resolvers, and the resoluton from the @@ -84,14 +96,16 @@ func NewMultiResolver(opts ...MultiResolverOption) (m *MultiResolver) { // will be returned. func (m MultiResolver) Resolve(addr string) (h common.Hash, err error) { rs := m.resolvers[""] - if ext := path.Ext(addr); ext != "" { - rstld, ok := m.resolvers[ext[1:]] + tld := path.Ext(addr) + if tld != "" { + tld = tld[1:] + rstld, ok := m.resolvers[tld] if ok { rs = rstld } } if rs == nil { - return h, errNoResolver + return h, NewNoResolverError(tld) } for _, r := range rs { h, err = r.Resolve(addr) diff --git a/swarm/api/api_test.go b/swarm/api/api_test.go index 36cbdb83c5..dbe7c1dac4 100644 --- a/swarm/api/api_test.go +++ b/swarm/api/api_test.go @@ -259,7 +259,7 @@ func TestMultiResolver(t *testing.T) { { desc: "No resolvers, returns error", r: NewMultiResolver(), - err: errNoResolver, + err: NewNoResolverError(""), }, { desc: "One default resolver, returns resolved address", @@ -332,6 +332,14 @@ func TestMultiResolver(t *testing.T) { addr: testAddr, result: testHash, }, + { + desc: "One TLD resolver, no default resolver, returns error for different TLD", + r: NewMultiResolver( + MultiResolverOptionWithResolver(ethResolve, "eth"), + ), + addr: testAddr, + err: NewNoResolverError("test"), + }, } for _, x := range tests { t.Run(x.desc, func(t *testing.T) { From dd5ae4fd8e28d1ce618668d213e81781ef59f067 Mon Sep 17 00:00:00 2001 From: Janos Guljas Date: Tue, 19 Dec 2017 11:47:26 +0100 Subject: [PATCH 12/13] cmd/swarm: add validation for EnsAPIs configuration parameter --- cmd/swarm/config.go | 35 +++++++++++++++ cmd/swarm/config_test.go | 95 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 130 insertions(+) diff --git a/cmd/swarm/config.go b/cmd/swarm/config.go index c66a2a4fe5..566b00f488 100644 --- a/cmd/swarm/config.go +++ b/cmd/swarm/config.go @@ -102,6 +102,8 @@ func buildConfig(ctx *cli.Context) (config *bzzapi.Config, err error) { config = envVarsOverride(config) //override settings provided by command line config = cmdLineOverride(config, ctx) + //validate configuration parameters + err = validateConfig(config) return } @@ -319,6 +321,39 @@ func checkDeprecated(ctx *cli.Context) { } } +//validate configuration parameters +func validateConfig(cfg *bzzapi.Config) (err error) { + for _, ensAPI := range cfg.EnsAPIs { + if ensAPI != "" { + if err := validateEnsAPIs(ensAPI); err != nil { + return fmt.Errorf("invalid format [tld:][contract-addr@]url for ENS API endpoint configuration %q: %v", ensAPI, err) + } + } + } + return nil +} + +//validate EnsAPIs configuration parameter +func validateEnsAPIs(s string) (err error) { + // missing contract address + if strings.HasPrefix(s, "@") { + return errors.New("missing contract address") + } + // missing url + if strings.HasSuffix(s, "@") { + return errors.New("missing url") + } + // missing tld + if strings.HasPrefix(s, ":") { + return errors.New("missing tld") + } + // missing url + if strings.HasSuffix(s, ":") { + return errors.New("missing url") + } + return nil +} + //print a Config as string func printConfig(config *bzzapi.Config) string { out, err := tomlSettings.Marshal(&config) diff --git a/cmd/swarm/config_test.go b/cmd/swarm/config_test.go index 166980d148..9bf584f50c 100644 --- a/cmd/swarm/config_test.go +++ b/cmd/swarm/config_test.go @@ -457,3 +457,98 @@ func TestCmdLineOverridesFile(t *testing.T) { node.Shutdown() } + +func TestValidateConfig(t *testing.T) { + for _, c := range []struct { + cfg *api.Config + err string + }{ + { + cfg: &api.Config{EnsAPIs: []string{ + "/data/testnet/geth.ipc", + }}, + }, + { + cfg: &api.Config{EnsAPIs: []string{ + "http://127.0.0.1:1234", + }}, + }, + { + cfg: &api.Config{EnsAPIs: []string{ + "ws://127.0.0.1:1234", + }}, + }, + { + cfg: &api.Config{EnsAPIs: []string{ + "test:/data/testnet/geth.ipc", + }}, + }, + { + cfg: &api.Config{EnsAPIs: []string{ + "test:ws://127.0.0.1:1234", + }}, + }, + { + cfg: &api.Config{EnsAPIs: []string{ + "314159265dD8dbb310642f98f50C066173C1259b@/data/testnet/geth.ipc", + }}, + }, + { + cfg: &api.Config{EnsAPIs: []string{ + "314159265dD8dbb310642f98f50C066173C1259b@http://127.0.0.1:1234", + }}, + }, + { + cfg: &api.Config{EnsAPIs: []string{ + "314159265dD8dbb310642f98f50C066173C1259b@ws://127.0.0.1:1234", + }}, + }, + { + cfg: &api.Config{EnsAPIs: []string{ + "test:314159265dD8dbb310642f98f50C066173C1259b@/data/testnet/geth.ipc", + }}, + }, + { + cfg: &api.Config{EnsAPIs: []string{ + "eth:314159265dD8dbb310642f98f50C066173C1259b@http://127.0.0.1:1234", + }}, + }, + { + cfg: &api.Config{EnsAPIs: []string{ + "eth:314159265dD8dbb310642f98f50C066173C1259b@ws://127.0.0.1:12344", + }}, + }, + { + cfg: &api.Config{EnsAPIs: []string{ + "eth:", + }}, + err: "invalid format [tld:][contract-addr@]url for ENS API endpoint configuration \"eth:\": missing url", + }, + { + cfg: &api.Config{EnsAPIs: []string{ + "314159265dD8dbb310642f98f50C066173C1259b@", + }}, + err: "invalid format [tld:][contract-addr@]url for ENS API endpoint configuration \"314159265dD8dbb310642f98f50C066173C1259b@\": missing url", + }, + { + cfg: &api.Config{EnsAPIs: []string{ + ":314159265dD8dbb310642f98f50C066173C1259", + }}, + err: "invalid format [tld:][contract-addr@]url for ENS API endpoint configuration \":314159265dD8dbb310642f98f50C066173C1259\": missing tld", + }, + { + cfg: &api.Config{EnsAPIs: []string{ + "@/data/testnet/geth.ipc", + }}, + err: "invalid format [tld:][contract-addr@]url for ENS API endpoint configuration \"@/data/testnet/geth.ipc\": missing contract address", + }, + } { + err := validateConfig(c.cfg) + if c.err != "" && err.Error() != c.err { + t.Errorf("expected error %q, got %q", c.err, err) + } + if c.err == "" && err != nil { + t.Errorf("unexpected error %q", err) + } + } +} From 820cf09c98706f71d4b02b6c25e62db15830f3fb Mon Sep 17 00:00:00 2001 From: Janos Guljas Date: Tue, 19 Dec 2017 23:05:23 +0100 Subject: [PATCH 13/13] cmd/swarm: return error early in buildConfig function --- cmd/swarm/config.go | 3 +++ 1 file changed, 3 insertions(+) diff --git a/cmd/swarm/config.go b/cmd/swarm/config.go index 566b00f488..a3c03c00d5 100644 --- a/cmd/swarm/config.go +++ b/cmd/swarm/config.go @@ -98,6 +98,9 @@ func buildConfig(ctx *cli.Context) (config *bzzapi.Config, err error) { config = bzzapi.NewDefaultConfig() //first load settings from config file (if provided) config, err = configFileOverride(config, ctx) + if err != nil { + return nil, err + } //override settings provided by environment variables config = envVarsOverride(config) //override settings provided by command line