From d54f2f2e5e393741ff887a364877c0fddd5571a5 Mon Sep 17 00:00:00 2001 From: Guillaume Ballet Date: Tue, 8 Sep 2020 08:47:48 +0000 Subject: [PATCH] whisper: remove whisper (#21487) * whisper: remove whisper * Update cmd/geth/config.go Co-authored-by: Marius van der Wijden * cmd/geth: warn on enabling whisper + remove more whisper deps * mobile: remove all whisper references Co-authored-by: Marius van der Wijden Co-authored-by: Martin Holst Swende --- cmd/geth/config.go | 27 +- cmd/geth/consolecmd_test.go | 8 +- cmd/geth/usage.go | 2 +- cmd/utils/flags.go | 27 +- cmd/wnode/main.go | 773 ----------- mobile/geth.go | 10 - mobile/shhclient.go | 195 --- mobile/types.go | 93 -- .../009c5adfa4fd685caef58e1ce932fa7fb209730a | Bin 61 -> 0 bytes tests/fuzzers/whisperv6/whisper-fuzzer.go | 90 -- whisper/mailserver/mailserver.go | 209 --- whisper/mailserver/server_test.go | 235 ---- whisper/shhclient/client.go | 193 --- whisper/whisperv6/api.go | 593 --------- whisper/whisperv6/api_test.go | 64 - whisper/whisperv6/benchmarks_test.go | 208 --- whisper/whisperv6/config.go | 31 - whisper/whisperv6/doc.go | 92 -- whisper/whisperv6/envelope.go | 280 ---- whisper/whisperv6/envelope_test.go | 91 -- whisper/whisperv6/filter.go | 262 ---- whisper/whisperv6/filter_test.go | 836 ------------ whisper/whisperv6/gen_criteria_json.go | 66 - whisper/whisperv6/gen_message_json.go | 84 -- whisper/whisperv6/gen_newmessage_json.go | 90 -- whisper/whisperv6/message.go | 355 ----- whisper/whisperv6/message_test.go | 471 ------- whisper/whisperv6/peer.go | 268 ---- whisper/whisperv6/topic.go | 56 - whisper/whisperv6/topic_test.go | 134 -- whisper/whisperv6/whisper.go | 1140 ----------------- whisper/whisperv6/whisper_test.go | 928 -------------- 32 files changed, 17 insertions(+), 7894 deletions(-) delete mode 100644 cmd/wnode/main.go delete mode 100644 mobile/shhclient.go delete mode 100644 tests/fuzzers/whisperv6/corpus/009c5adfa4fd685caef58e1ce932fa7fb209730a delete mode 100644 tests/fuzzers/whisperv6/whisper-fuzzer.go delete mode 100644 whisper/mailserver/mailserver.go delete mode 100644 whisper/mailserver/server_test.go delete mode 100644 whisper/shhclient/client.go delete mode 100644 whisper/whisperv6/api.go delete mode 100644 whisper/whisperv6/api_test.go delete mode 100644 whisper/whisperv6/benchmarks_test.go delete mode 100644 whisper/whisperv6/config.go delete mode 100644 whisper/whisperv6/doc.go delete mode 100644 whisper/whisperv6/envelope.go delete mode 100644 whisper/whisperv6/envelope_test.go delete mode 100644 whisper/whisperv6/filter.go delete mode 100644 whisper/whisperv6/filter_test.go delete mode 100644 whisper/whisperv6/gen_criteria_json.go delete mode 100644 whisper/whisperv6/gen_message_json.go delete mode 100644 whisper/whisperv6/gen_newmessage_json.go delete mode 100644 whisper/whisperv6/message.go delete mode 100644 whisper/whisperv6/message_test.go delete mode 100644 whisper/whisperv6/peer.go delete mode 100644 whisper/whisperv6/topic.go delete mode 100644 whisper/whisperv6/topic_test.go delete mode 100644 whisper/whisperv6/whisper.go delete mode 100644 whisper/whisperv6/whisper_test.go diff --git a/cmd/geth/config.go b/cmd/geth/config.go index 5fa64abe36..2c15a4c832 100644 --- a/cmd/geth/config.go +++ b/cmd/geth/config.go @@ -29,9 +29,9 @@ import ( "github.com/ethereum/go-ethereum/cmd/utils" "github.com/ethereum/go-ethereum/eth" "github.com/ethereum/go-ethereum/internal/ethapi" + "github.com/ethereum/go-ethereum/log" "github.com/ethereum/go-ethereum/node" "github.com/ethereum/go-ethereum/params" - whisper "github.com/ethereum/go-ethereum/whisper/whisperv6" "github.com/naoina/toml" ) @@ -75,7 +75,6 @@ type ethstatsConfig struct { type gethConfig struct { Eth eth.Config - Shh whisper.Config Node node.Config Ethstats ethstatsConfig } @@ -110,7 +109,6 @@ func makeConfigNode(ctx *cli.Context) (*node.Node, gethConfig) { // Load defaults. cfg := gethConfig{ Eth: eth.DefaultConfig, - Shh: whisper.DefaultConfig, Node: defaultNodeConfig(), } @@ -131,19 +129,18 @@ func makeConfigNode(ctx *cli.Context) (*node.Node, gethConfig) { if ctx.GlobalIsSet(utils.EthStatsURLFlag.Name) { cfg.Ethstats.URL = ctx.GlobalString(utils.EthStatsURLFlag.Name) } - utils.SetShhConfig(ctx, stack, &cfg.Shh) + utils.SetShhConfig(ctx, stack) return stack, cfg } // enableWhisper returns true in case one of the whisper flags is set. -func enableWhisper(ctx *cli.Context) bool { +func checkWhisper(ctx *cli.Context) { for _, flag := range whisperFlags { if ctx.GlobalIsSet(flag.GetName()) { - return true + log.Warn("deprecated whisper flag detected. Whisper has been moved to github.com/ethereum/whisper") } } - return false } // makeFullNode loads geth configuration and creates the Ethereum backend. @@ -152,21 +149,7 @@ func makeFullNode(ctx *cli.Context) (*node.Node, ethapi.Backend) { backend := utils.RegisterEthService(stack, &cfg.Eth) - // 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) - if shhEnabled || shhAutoEnabled { - if ctx.GlobalIsSet(utils.WhisperMaxMessageSizeFlag.Name) { - cfg.Shh.MaxMessageSize = uint32(ctx.Int(utils.WhisperMaxMessageSizeFlag.Name)) - } - if ctx.GlobalIsSet(utils.WhisperMinPOWFlag.Name) { - cfg.Shh.MinimumAcceptedPOW = ctx.Float64(utils.WhisperMinPOWFlag.Name) - } - if ctx.GlobalIsSet(utils.WhisperRestrictConnectionBetweenLightClientsFlag.Name) { - cfg.Shh.RestrictConnectionBetweenLightClients = true - } - utils.RegisterShhService(stack, &cfg.Shh) - } + checkWhisper(ctx) // Configure GraphQL if requested if ctx.GlobalIsSet(utils.GraphQLEnabledFlag.Name) { utils.RegisterGraphQLService(stack, backend, cfg.Node) diff --git a/cmd/geth/consolecmd_test.go b/cmd/geth/consolecmd_test.go index a2489892e4..6c100e18d9 100644 --- a/cmd/geth/consolecmd_test.go +++ b/cmd/geth/consolecmd_test.go @@ -31,7 +31,7 @@ import ( ) const ( - ipcAPIs = "admin:1.0 debug:1.0 eth:1.0 ethash:1.0 miner:1.0 net:1.0 personal:1.0 rpc:1.0 shh:1.0 txpool:1.0 web3:1.0" + ipcAPIs = "admin:1.0 debug:1.0 eth:1.0 ethash:1.0 miner:1.0 net:1.0 personal:1.0 rpc:1.0 txpool:1.0 web3:1.0" httpAPIs = "eth:1.0 net:1.0 rpc:1.0 web3:1.0" ) @@ -43,7 +43,7 @@ func TestConsoleWelcome(t *testing.T) { // Start a geth console, make sure it's cleaned up and terminate the console geth := runGeth(t, "--port", "0", "--maxpeers", "0", "--nodiscover", "--nat", "none", - "--etherbase", coinbase, "--shh", + "--etherbase", coinbase, "console") // Gather all the infos the welcome message needs to contain @@ -83,11 +83,9 @@ func TestIPCAttachWelcome(t *testing.T) { defer os.RemoveAll(ws) ipc = filepath.Join(ws, "geth.ipc") } - // Note: we need --shh because testAttachWelcome checks for default - // list of ipc modules and shh is included there. geth := runGeth(t, "--port", "0", "--maxpeers", "0", "--nodiscover", "--nat", "none", - "--etherbase", coinbase, "--shh", "--ipcpath", ipc) + "--etherbase", coinbase, "--ipcpath", ipc) defer func() { geth.Interrupt() diff --git a/cmd/geth/usage.go b/cmd/geth/usage.go index 44f5750fee..5e004c42be 100644 --- a/cmd/geth/usage.go +++ b/cmd/geth/usage.go @@ -211,7 +211,7 @@ var AppHelpFlagGroups = []flags.FlagGroup{ Flags: metricsFlags, }, { - Name: "WHISPER (EXPERIMENTAL)", + Name: "WHISPER (deprecated)", Flags: whisperFlags, }, { diff --git a/cmd/utils/flags.go b/cmd/utils/flags.go index 403888c12f..e6382c1634 100644 --- a/cmd/utils/flags.go +++ b/cmd/utils/flags.go @@ -63,7 +63,6 @@ import ( "github.com/ethereum/go-ethereum/p2p/nat" "github.com/ethereum/go-ethereum/p2p/netutil" "github.com/ethereum/go-ethereum/params" - whisper "github.com/ethereum/go-ethereum/whisper/whisperv6" pcsclite "github.com/gballet/go-libpcsclite" cli "gopkg.in/urfave/cli.v1" ) @@ -639,12 +638,12 @@ var ( WhisperMaxMessageSizeFlag = cli.IntFlag{ Name: "shh.maxmessagesize", Usage: "Max message size accepted", - Value: int(whisper.DefaultMaxMessageSize), + Value: 1024 * 1024, } WhisperMinPOWFlag = cli.Float64Flag{ Name: "shh.pow", Usage: "Minimum POW accepted", - Value: whisper.DefaultMinimumPoW, + Value: 0.2, } WhisperRestrictConnectionBetweenLightClientsFlag = cli.BoolFlag{ Name: "shh.restrict-light", @@ -1465,15 +1464,12 @@ func CheckExclusive(ctx *cli.Context, args ...interface{}) { } // SetShhConfig applies shh-related command line flags to the config. -func SetShhConfig(ctx *cli.Context, stack *node.Node, cfg *whisper.Config) { - if ctx.GlobalIsSet(WhisperMaxMessageSizeFlag.Name) { - cfg.MaxMessageSize = uint32(ctx.GlobalUint(WhisperMaxMessageSizeFlag.Name)) - } - if ctx.GlobalIsSet(WhisperMinPOWFlag.Name) { - cfg.MinimumAcceptedPOW = ctx.GlobalFloat64(WhisperMinPOWFlag.Name) - } - if ctx.GlobalIsSet(WhisperRestrictConnectionBetweenLightClientsFlag.Name) { - cfg.RestrictConnectionBetweenLightClients = true +func SetShhConfig(ctx *cli.Context, stack *node.Node) { + if ctx.GlobalIsSet(WhisperEnabledFlag.Name) || + ctx.GlobalIsSet(WhisperMaxMessageSizeFlag.Name) || + ctx.GlobalIsSet(WhisperMinPOWFlag.Name) || + ctx.GlobalIsSet(WhisperRestrictConnectionBetweenLightClientsFlag.Name) { + log.Warn("Whisper support has been deprecated and the code has been moved to github.com/ethereum/whisper") } } @@ -1697,13 +1693,6 @@ func RegisterEthService(stack *node.Node, cfg *eth.Config) ethapi.Backend { } } -// RegisterShhService configures Whisper and adds it to the given node. -func RegisterShhService(stack *node.Node, cfg *whisper.Config) { - if _, err := whisper.New(stack, cfg); err != nil { - Fatalf("Failed to register the Whisper service: %v", err) - } -} - // RegisterEthStatsService configures the Ethereum Stats daemon and adds it to // the given node. func RegisterEthStatsService(stack *node.Node, backend ethapi.Backend, url string) { diff --git a/cmd/wnode/main.go b/cmd/wnode/main.go deleted file mode 100644 index bdb0d306b7..0000000000 --- a/cmd/wnode/main.go +++ /dev/null @@ -1,773 +0,0 @@ -// 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 . - -// This is a simple Whisper node. It could be used as a stand-alone bootstrap node. -// Also, could be used for different test and diagnostics purposes. - -package main - -import ( - "bufio" - "crypto/ecdsa" - crand "crypto/rand" - "crypto/sha512" - "encoding/binary" - "encoding/hex" - "flag" - "fmt" - "io/ioutil" - "os" - "path/filepath" - "strconv" - "strings" - "time" - - "github.com/ethereum/go-ethereum/cmd/utils" - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/common/hexutil" - "github.com/ethereum/go-ethereum/console/prompt" - "github.com/ethereum/go-ethereum/crypto" - "github.com/ethereum/go-ethereum/log" - "github.com/ethereum/go-ethereum/p2p" - "github.com/ethereum/go-ethereum/p2p/enode" - "github.com/ethereum/go-ethereum/p2p/nat" - "github.com/ethereum/go-ethereum/whisper/mailserver" - whisper "github.com/ethereum/go-ethereum/whisper/whisperv6" - "golang.org/x/crypto/pbkdf2" -) - -const quitCommand = "~Q" -const entropySize = 32 - -// singletons -var ( - server *p2p.Server - shh *whisper.Whisper - done chan struct{} - mailServer mailserver.WMailServer - entropy [entropySize]byte - - input = bufio.NewReader(os.Stdin) -) - -// encryption -var ( - symKey []byte - pub *ecdsa.PublicKey - asymKey *ecdsa.PrivateKey - nodeid *ecdsa.PrivateKey - topic whisper.TopicType - - asymKeyID string - asymFilterID string - symFilterID string - symPass string - msPassword string -) - -// cmd arguments -var ( - bootstrapMode = flag.Bool("standalone", false, "boostrap node: don't initiate connection to peers, just wait for incoming connections") - forwarderMode = flag.Bool("forwarder", false, "forwarder mode: only forward messages, neither encrypt nor decrypt messages") - mailServerMode = flag.Bool("mailserver", false, "mail server mode: delivers expired messages on demand") - requestMail = flag.Bool("mailclient", false, "request expired messages from the bootstrap server") - asymmetricMode = flag.Bool("asym", false, "use asymmetric encryption") - generateKey = flag.Bool("generatekey", false, "generate and show the private key") - fileExMode = flag.Bool("fileexchange", false, "file exchange mode") - fileReader = flag.Bool("filereader", false, "load and decrypt messages saved as files, display as plain text") - testMode = flag.Bool("test", false, "use of predefined parameters for diagnostics (password, etc.)") - echoMode = flag.Bool("echo", false, "echo mode: prints some arguments for diagnostics") - - argVerbosity = flag.Int("verbosity", int(log.LvlError), "log verbosity level") - argTTL = flag.Uint("ttl", 30, "time-to-live for messages in seconds") - argWorkTime = flag.Uint("work", 5, "work time in seconds") - argMaxSize = flag.Uint("maxsize", uint(whisper.DefaultMaxMessageSize), "max size of message") - argPoW = flag.Float64("pow", whisper.DefaultMinimumPoW, "PoW for normal messages in float format (e.g. 2.7)") - argServerPoW = flag.Float64("mspow", whisper.DefaultMinimumPoW, "PoW requirement for Mail Server request") - - argIP = flag.String("ip", "", "IP address and port of this node (e.g. 127.0.0.1:30303)") - argPub = flag.String("pub", "", "public key for asymmetric encryption") - argDBPath = flag.String("dbpath", "", "path to the server's DB directory") - argIDFile = flag.String("idfile", "", "file name with node id (private key)") - argEnode = flag.String("boot", "", "bootstrap node you want to connect to (e.g. enode://e454......08d50@52.176.211.200:16428)") - argTopic = flag.String("topic", "", "topic in hexadecimal format (e.g. 70a4beef)") - argSaveDir = flag.String("savedir", "", "directory where all incoming messages will be saved as files") -) - -func main() { - processArgs() - initialize() - run() - shutdown() -} - -func processArgs() { - flag.Parse() - - if len(*argIDFile) > 0 { - var err error - nodeid, err = crypto.LoadECDSA(*argIDFile) - if err != nil { - utils.Fatalf("Failed to load file [%s]: %s.", *argIDFile, err) - } - } - - const enodePrefix = "enode://" - if len(*argEnode) > 0 { - if (*argEnode)[:len(enodePrefix)] != enodePrefix { - *argEnode = enodePrefix + *argEnode - } - } - - if len(*argTopic) > 0 { - x, err := hex.DecodeString(*argTopic) - if err != nil { - utils.Fatalf("Failed to parse the topic: %s", err) - } - topic = whisper.BytesToTopic(x) - } - - if *asymmetricMode && len(*argPub) > 0 { - var err error - if pub, err = crypto.UnmarshalPubkey(common.FromHex(*argPub)); err != nil { - utils.Fatalf("invalid public key") - } - } - - if len(*argSaveDir) > 0 { - if _, err := os.Stat(*argSaveDir); os.IsNotExist(err) { - utils.Fatalf("Download directory '%s' does not exist", *argSaveDir) - } - } else if *fileExMode { - utils.Fatalf("Parameter 'savedir' is mandatory for file exchange mode") - } - - if *echoMode { - echo() - } -} - -func echo() { - fmt.Printf("ttl = %d \n", *argTTL) - fmt.Printf("workTime = %d \n", *argWorkTime) - fmt.Printf("pow = %f \n", *argPoW) - fmt.Printf("mspow = %f \n", *argServerPoW) - fmt.Printf("ip = %s \n", *argIP) - fmt.Printf("pub = %s \n", hexutil.Encode(crypto.FromECDSAPub(pub))) - fmt.Printf("idfile = %s \n", *argIDFile) - fmt.Printf("dbpath = %s \n", *argDBPath) - fmt.Printf("boot = %s \n", *argEnode) -} - -func initialize() { - log.Root().SetHandler(log.LvlFilterHandler(log.Lvl(*argVerbosity), log.StreamHandler(os.Stderr, log.TerminalFormat(false)))) - - done = make(chan struct{}) - var peers []*enode.Node - var err error - - if *generateKey { - key, err := crypto.GenerateKey() - if err != nil { - utils.Fatalf("Failed to generate private key: %s", err) - } - k := hex.EncodeToString(crypto.FromECDSA(key)) - fmt.Printf("Random private key: %s \n", k) - os.Exit(0) - } - - if *testMode { - symPass = "wwww" // ascii code: 0x77777777 - msPassword = "wwww" - } - - if *bootstrapMode { - if len(*argIP) == 0 { - argIP = scanLineA("Please enter your IP and port (e.g. 127.0.0.1:30348): ") - } - } else if *fileReader { - *bootstrapMode = true - } else { - if len(*argEnode) == 0 { - argEnode = scanLineA("Please enter the peer's enode: ") - } - peer := enode.MustParse(*argEnode) - peers = append(peers, peer) - } - - if *mailServerMode { - if len(msPassword) == 0 { - msPassword, err = prompt.Stdin.PromptPassword("Please enter the Mail Server password: ") - if err != nil { - utils.Fatalf("Failed to read Mail Server password: %s", err) - } - } - } - - cfg := &whisper.Config{ - MaxMessageSize: uint32(*argMaxSize), - MinimumAcceptedPOW: *argPoW, - } - shh = whisper.StandaloneWhisperService(cfg) - - if *argPoW != whisper.DefaultMinimumPoW { - err := shh.SetMinimumPoW(*argPoW) - if err != nil { - utils.Fatalf("Failed to set PoW: %s", err) - } - } - - if uint32(*argMaxSize) != whisper.DefaultMaxMessageSize { - err := shh.SetMaxMessageSize(uint32(*argMaxSize)) - if err != nil { - utils.Fatalf("Failed to set max message size: %s", err) - } - } - - asymKeyID, err = shh.NewKeyPair() - if err != nil { - utils.Fatalf("Failed to generate a new key pair: %s", err) - } - - asymKey, err = shh.GetPrivateKey(asymKeyID) - if err != nil { - utils.Fatalf("Failed to retrieve a new key pair: %s", err) - } - - if nodeid == nil { - tmpID, err := shh.NewKeyPair() - if err != nil { - utils.Fatalf("Failed to generate a new key pair: %s", err) - } - - nodeid, err = shh.GetPrivateKey(tmpID) - if err != nil { - utils.Fatalf("Failed to retrieve a new key pair: %s", err) - } - } - - maxPeers := 80 - if *bootstrapMode { - maxPeers = 800 - } - - _, err = crand.Read(entropy[:]) - if err != nil { - utils.Fatalf("crypto/rand failed: %s", err) - } - - if *mailServerMode { - shh.RegisterServer(&mailServer) - if err := mailServer.Init(shh, *argDBPath, msPassword, *argServerPoW); err != nil { - utils.Fatalf("Failed to init MailServer: %s", err) - } - } - - server = &p2p.Server{ - Config: p2p.Config{ - PrivateKey: nodeid, - MaxPeers: maxPeers, - Name: common.MakeName("wnode", "6.0"), - Protocols: shh.Protocols(), - ListenAddr: *argIP, - NAT: nat.Any(), - BootstrapNodes: peers, - StaticNodes: peers, - TrustedNodes: peers, - }, - } -} - -func startServer() error { - err := server.Start() - if err != nil { - fmt.Printf("Failed to start Whisper peer: %s.", err) - return err - } - - fmt.Printf("my public key: %s \n", hexutil.Encode(crypto.FromECDSAPub(&asymKey.PublicKey))) - fmt.Println(server.NodeInfo().Enode) - - if *bootstrapMode { - configureNode() - fmt.Println("Bootstrap Whisper node started") - } else { - fmt.Println("Whisper node started") - // first see if we can establish connection, then ask for user input - waitForConnection(true) - configureNode() - } - - if *fileExMode { - fmt.Printf("Please type the file name to be send. To quit type: '%s'\n", quitCommand) - } else if *fileReader { - fmt.Printf("Please type the file name to be decrypted. To quit type: '%s'\n", quitCommand) - } else if !*forwarderMode { - fmt.Printf("Please type the message. To quit type: '%s'\n", quitCommand) - } - return nil -} - -func configureNode() { - var err error - var p2pAccept bool - - if *forwarderMode { - return - } - - if *asymmetricMode { - if len(*argPub) == 0 { - s := scanLine("Please enter the peer's public key: ") - b := common.FromHex(s) - if b == nil { - utils.Fatalf("Error: can not convert hexadecimal string") - } - if pub, err = crypto.UnmarshalPubkey(b); err != nil { - utils.Fatalf("Error: invalid peer public key") - } - } - } - - if *requestMail { - p2pAccept = true - if len(msPassword) == 0 { - msPassword, err = prompt.Stdin.PromptPassword("Please enter the Mail Server password: ") - if err != nil { - utils.Fatalf("Failed to read Mail Server password: %s", err) - } - } - } - - if !*asymmetricMode && !*forwarderMode { - if len(symPass) == 0 { - symPass, err = prompt.Stdin.PromptPassword("Please enter the password for symmetric encryption: ") - if err != nil { - utils.Fatalf("Failed to read password: %v", err) - } - } - - symKeyID, err := shh.AddSymKeyFromPassword(symPass) - if err != nil { - utils.Fatalf("Failed to create symmetric key: %s", err) - } - symKey, err = shh.GetSymKey(symKeyID) - if err != nil { - utils.Fatalf("Failed to save symmetric key: %s", err) - } - if len(*argTopic) == 0 { - generateTopic([]byte(symPass)) - } - - fmt.Printf("Filter is configured for the topic: %x \n", topic) - } - - if *mailServerMode { - if len(*argDBPath) == 0 { - argDBPath = scanLineA("Please enter the path to DB file: ") - } - } - - symFilter := whisper.Filter{ - KeySym: symKey, - Topics: [][]byte{topic[:]}, - AllowP2P: p2pAccept, - } - symFilterID, err = shh.Subscribe(&symFilter) - if err != nil { - utils.Fatalf("Failed to install filter: %s", err) - } - - asymFilter := whisper.Filter{ - KeyAsym: asymKey, - Topics: [][]byte{topic[:]}, - AllowP2P: p2pAccept, - } - asymFilterID, err = shh.Subscribe(&asymFilter) - if err != nil { - utils.Fatalf("Failed to install filter: %s", err) - } -} - -func generateTopic(password []byte) { - x := pbkdf2.Key(password, password, 4096, 128, sha512.New) - for i := 0; i < len(x); i++ { - topic[i%whisper.TopicLength] ^= x[i] - } -} - -func waitForConnection(timeout bool) { - var cnt int - var connected bool - for !connected { - time.Sleep(time.Millisecond * 50) - connected = server.PeerCount() > 0 - if timeout { - cnt++ - if cnt > 1000 { - utils.Fatalf("Timeout expired, failed to connect") - } - } - } - - fmt.Println("Connected to peer.") -} - -func run() { - err := startServer() - if err != nil { - return - } - defer server.Stop() - shh.Start() - defer shh.Stop() - - if !*forwarderMode { - go messageLoop() - } - - if *requestMail { - requestExpiredMessagesLoop() - } else if *fileExMode { - sendFilesLoop() - } else if *fileReader { - fileReaderLoop() - } else { - sendLoop() - } -} - -func shutdown() { - close(done) - mailServer.Close() -} - -func sendLoop() { - for { - s := scanLine("") - if s == quitCommand { - fmt.Println("Quit command received") - return - } - sendMsg([]byte(s)) - if *asymmetricMode { - // print your own message for convenience, - // because in asymmetric mode it is impossible to decrypt it - timestamp := time.Now().Unix() - from := crypto.PubkeyToAddress(asymKey.PublicKey) - fmt.Printf("\n%d <%x>: %s\n", timestamp, from, s) - } - } -} - -func sendFilesLoop() { - for { - s := scanLine("") - if s == quitCommand { - fmt.Println("Quit command received") - return - } - b, err := ioutil.ReadFile(s) - if err != nil { - fmt.Printf(">>> Error: %s \n", err) - } else { - h := sendMsg(b) - if (h == common.Hash{}) { - fmt.Printf(">>> Error: message was not sent \n") - } else { - timestamp := time.Now().Unix() - from := crypto.PubkeyToAddress(asymKey.PublicKey) - fmt.Printf("\n%d <%x>: sent message with hash %x\n", timestamp, from, h) - } - } - } -} - -func fileReaderLoop() { - watcher1 := shh.GetFilter(symFilterID) - watcher2 := shh.GetFilter(asymFilterID) - if watcher1 == nil && watcher2 == nil { - fmt.Println("Error: neither symmetric nor asymmetric filter is installed") - return - } - - for { - s := scanLine("") - if s == quitCommand { - fmt.Println("Quit command received") - return - } - raw, err := ioutil.ReadFile(s) - if err != nil { - fmt.Printf(">>> Error: %s \n", err) - } else { - env := whisper.Envelope{Data: raw} // the topic is zero - msg := env.Open(watcher1) // force-open envelope regardless of the topic - if msg == nil { - msg = env.Open(watcher2) - } - if msg == nil { - fmt.Printf(">>> Error: failed to decrypt the message \n") - } else { - printMessageInfo(msg) - } - } - } -} - -func scanLine(prompt string) string { - if len(prompt) > 0 { - fmt.Print(prompt) - } - txt, err := input.ReadString('\n') - if err != nil { - utils.Fatalf("input error: %s", err) - } - txt = strings.TrimRight(txt, "\n\r") - return txt -} - -func scanLineA(prompt string) *string { - s := scanLine(prompt) - return &s -} - -func scanUint(prompt string) uint32 { - s := scanLine(prompt) - i, err := strconv.Atoi(s) - if err != nil { - utils.Fatalf("Fail to parse the lower time limit: %s", err) - } - return uint32(i) -} - -func sendMsg(payload []byte) common.Hash { - params := whisper.MessageParams{ - Src: asymKey, - Dst: pub, - KeySym: symKey, - Payload: payload, - Topic: topic, - TTL: uint32(*argTTL), - PoW: *argPoW, - WorkTime: uint32(*argWorkTime), - } - - msg, err := whisper.NewSentMessage(¶ms) - if err != nil { - utils.Fatalf("failed to create new message: %s", err) - } - - envelope, err := msg.Wrap(¶ms) - if err != nil { - fmt.Printf("failed to seal message: %v \n", err) - return common.Hash{} - } - - err = shh.Send(envelope) - if err != nil { - fmt.Printf("failed to send message: %v \n", err) - return common.Hash{} - } - - return envelope.Hash() -} - -func messageLoop() { - sf := shh.GetFilter(symFilterID) - if sf == nil { - utils.Fatalf("symmetric filter is not installed") - } - - af := shh.GetFilter(asymFilterID) - if af == nil { - utils.Fatalf("asymmetric filter is not installed") - } - - ticker := time.NewTicker(time.Millisecond * 50) - defer ticker.Stop() - - for { - select { - case <-ticker.C: - m1 := sf.Retrieve() - m2 := af.Retrieve() - messages := append(m1, m2...) - for _, msg := range messages { - reportedOnce := false - if !*fileExMode && len(msg.Payload) <= 2048 { - printMessageInfo(msg) - reportedOnce = true - } - - // All messages are saved upon specifying argSaveDir. - // fileExMode only specifies how messages are displayed on the console after they are saved. - // if fileExMode == true, only the hashes are displayed, since messages might be too big. - if len(*argSaveDir) > 0 { - writeMessageToFile(*argSaveDir, msg, !reportedOnce) - } - } - case <-done: - return - } - } -} - -func printMessageInfo(msg *whisper.ReceivedMessage) { - timestamp := fmt.Sprintf("%d", msg.Sent) // unix timestamp for diagnostics - text := string(msg.Payload) - - var address common.Address - if msg.Src != nil { - address = crypto.PubkeyToAddress(*msg.Src) - } - - if whisper.IsPubKeyEqual(msg.Src, &asymKey.PublicKey) { - fmt.Printf("\n%s <%x>: %s\n", timestamp, address, text) // message from myself - } else { - fmt.Printf("\n%s [%x]: %s\n", timestamp, address, text) // message from a peer - } -} - -func writeMessageToFile(dir string, msg *whisper.ReceivedMessage, show bool) { - if len(dir) == 0 { - return - } - - timestamp := fmt.Sprintf("%d", msg.Sent) - name := fmt.Sprintf("%x", msg.EnvelopeHash) - - var address common.Address - if msg.Src != nil { - address = crypto.PubkeyToAddress(*msg.Src) - } - - env := shh.GetEnvelope(msg.EnvelopeHash) - if env == nil { - fmt.Printf("\nUnexpected error: envelope not found: %x\n", msg.EnvelopeHash) - return - } - - // this is a sample code; uncomment if you don't want to save your own messages. - //if whisper.IsPubKeyEqual(msg.Src, &asymKey.PublicKey) { - // fmt.Printf("\n%s <%x>: message from myself received, not saved: '%s'\n", timestamp, address, name) - // return - //} - - fullpath := filepath.Join(dir, name) - err := ioutil.WriteFile(fullpath, env.Data, 0644) - if err != nil { - fmt.Printf("\n%s {%x}: message received but not saved: %s\n", timestamp, address, err) - } else if show { - fmt.Printf("\n%s {%x}: message received and saved as '%s' (%d bytes)\n", timestamp, address, name, len(env.Data)) - } -} - -func requestExpiredMessagesLoop() { - var key, peerID, bloom []byte - var timeLow, timeUpp uint32 - var t string - var xt whisper.TopicType - - keyID, err := shh.AddSymKeyFromPassword(msPassword) - if err != nil { - utils.Fatalf("Failed to create symmetric key for mail request: %s", err) - } - key, err = shh.GetSymKey(keyID) - if err != nil { - utils.Fatalf("Failed to save symmetric key for mail request: %s", err) - } - peerID = extractIDFromEnode(*argEnode) - shh.AllowP2PMessagesFromPeer(peerID) - - for { - timeLow = scanUint("Please enter the lower limit of the time range (unix timestamp): ") - timeUpp = scanUint("Please enter the upper limit of the time range (unix timestamp): ") - t = scanLine("Enter the topic (hex). Press enter to request all messages, regardless of the topic: ") - if len(t) == whisper.TopicLength*2 { - x, err := hex.DecodeString(t) - if err != nil { - fmt.Printf("Failed to parse the topic: %s \n", err) - continue - } - xt = whisper.BytesToTopic(x) - bloom = whisper.TopicToBloom(xt) - obfuscateBloom(bloom) - } else if len(t) == 0 { - bloom = whisper.MakeFullNodeBloom() - } else { - fmt.Println("Error: topic is invalid, request aborted") - continue - } - - if timeUpp == 0 { - timeUpp = 0xFFFFFFFF - } - - data := make([]byte, 8, 8+whisper.BloomFilterSize) - binary.BigEndian.PutUint32(data, timeLow) - binary.BigEndian.PutUint32(data[4:], timeUpp) - data = append(data, bloom...) - - var params whisper.MessageParams - params.PoW = *argServerPoW - params.Payload = data - params.KeySym = key - params.Src = asymKey - params.WorkTime = 5 - - msg, err := whisper.NewSentMessage(¶ms) - if err != nil { - utils.Fatalf("failed to create new message: %s", err) - } - env, err := msg.Wrap(¶ms) - if err != nil { - utils.Fatalf("Wrap failed: %s", err) - } - - err = shh.RequestHistoricMessages(peerID, env) - if err != nil { - utils.Fatalf("Failed to send P2P message: %s", err) - } - - time.Sleep(time.Second * 5) - } -} - -func extractIDFromEnode(s string) []byte { - n, err := enode.Parse(enode.ValidSchemes, s) - if err != nil { - utils.Fatalf("Failed to parse node: %s", err) - } - return n.ID().Bytes() -} - -// obfuscateBloom adds 16 random bits to the bloom -// filter, in order to obfuscate the containing topics. -// it does so deterministically within every session. -// despite additional bits, it will match on average -// 32000 times less messages than full node's bloom filter. -func obfuscateBloom(bloom []byte) { - const half = entropySize / 2 - for i := 0; i < half; i++ { - x := int(entropy[i]) - if entropy[half+i] < 128 { - x += 256 - } - - bloom[x/8] = 1 << uint(x%8) // set the bit number X - } -} diff --git a/mobile/geth.go b/mobile/geth.go index d614f8eb36..ba58507d63 100644 --- a/mobile/geth.go +++ b/mobile/geth.go @@ -35,7 +35,6 @@ import ( "github.com/ethereum/go-ethereum/p2p" "github.com/ethereum/go-ethereum/p2p/nat" "github.com/ethereum/go-ethereum/params" - whisper "github.com/ethereum/go-ethereum/whisper/whisperv6" ) // NodeConfig represents the collection of configuration values to fine tune the Geth @@ -71,9 +70,6 @@ type NodeConfig struct { // It has the form "nodename:secret@host:port" EthereumNetStats string - // WhisperEnabled specifies whether the node should run the Whisper protocol. - WhisperEnabled bool - // Listening address of pprof server. PprofAddress string } @@ -186,12 +182,6 @@ func NewNode(datadir string, config *NodeConfig) (stack *Node, _ error) { } } } - // Register the Whisper protocol if requested - if config.WhisperEnabled { - if _, err := whisper.New(rawStack, &whisper.DefaultConfig); err != nil { - return nil, fmt.Errorf("whisper init: %v", err) - } - } return &Node{rawStack}, nil } diff --git a/mobile/shhclient.go b/mobile/shhclient.go deleted file mode 100644 index 90a8b83c39..0000000000 --- a/mobile/shhclient.go +++ /dev/null @@ -1,195 +0,0 @@ -// Copyright 2018 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 . - -// Contains a wrapper for the Whisper client. - -package geth - -import ( - "github.com/ethereum/go-ethereum/whisper/shhclient" - whisper "github.com/ethereum/go-ethereum/whisper/whisperv6" -) - -// WhisperClient provides access to the Ethereum APIs. -type WhisperClient struct { - client *shhclient.Client -} - -// NewWhisperClient connects a client to the given URL. -func NewWhisperClient(rawurl string) (client *WhisperClient, _ error) { - rawClient, err := shhclient.Dial(rawurl) - return &WhisperClient{rawClient}, err -} - -// GetVersion returns the Whisper sub-protocol version. -func (wc *WhisperClient) GetVersion(ctx *Context) (version string, _ error) { - return wc.client.Version(ctx.context) -} - -// Info returns diagnostic information about the whisper node. -func (wc *WhisperClient) GetInfo(ctx *Context) (info *Info, _ error) { - rawInfo, err := wc.client.Info(ctx.context) - return &Info{&rawInfo}, err -} - -// SetMaxMessageSize sets the maximal message size allowed by this node. Incoming -// and outgoing messages with a larger size will be rejected. Whisper message size -// can never exceed the limit imposed by the underlying P2P protocol (10 Mb). -func (wc *WhisperClient) SetMaxMessageSize(ctx *Context, size int32) error { - return wc.client.SetMaxMessageSize(ctx.context, uint32(size)) -} - -// SetMinimumPoW (experimental) sets the minimal PoW required by this node. -// This experimental function was introduced for the future dynamic adjustment of -// PoW requirement. If the node is overwhelmed with messages, it should raise the -// PoW requirement and notify the peers. The new value should be set relative to -// the old value (e.g. double). The old value could be obtained via shh_info call. -func (wc *WhisperClient) SetMinimumPoW(ctx *Context, pow float64) error { - return wc.client.SetMinimumPoW(ctx.context, pow) -} - -// Marks specific peer trusted, which will allow it to send historic (expired) messages. -// Note This function is not adding new nodes, the node needs to exists as a peer. -func (wc *WhisperClient) MarkTrustedPeer(ctx *Context, enode string) error { - return wc.client.MarkTrustedPeer(ctx.context, enode) -} - -// NewKeyPair generates a new public and private key pair for message decryption and encryption. -// It returns an identifier that can be used to refer to the key. -func (wc *WhisperClient) NewKeyPair(ctx *Context) (string, error) { - return wc.client.NewKeyPair(ctx.context) -} - -// AddPrivateKey stored the key pair, and returns its ID. -func (wc *WhisperClient) AddPrivateKey(ctx *Context, key []byte) (string, error) { - return wc.client.AddPrivateKey(ctx.context, key) -} - -// DeleteKeyPair delete the specifies key. -func (wc *WhisperClient) DeleteKeyPair(ctx *Context, id string) (string, error) { - return wc.client.DeleteKeyPair(ctx.context, id) -} - -// HasKeyPair returns an indication if the node has a private key or -// key pair matching the given ID. -func (wc *WhisperClient) HasKeyPair(ctx *Context, id string) (bool, error) { - return wc.client.HasKeyPair(ctx.context, id) -} - -// GetPublicKey return the public key for a key ID. -func (wc *WhisperClient) GetPublicKey(ctx *Context, id string) ([]byte, error) { - return wc.client.PublicKey(ctx.context, id) -} - -// GetPrivateKey return the private key for a key ID. -func (wc *WhisperClient) GetPrivateKey(ctx *Context, id string) ([]byte, error) { - return wc.client.PrivateKey(ctx.context, id) -} - -// NewSymmetricKey generates a random symmetric key and returns its identifier. -// Can be used encrypting and decrypting messages where the key is known to both parties. -func (wc *WhisperClient) NewSymmetricKey(ctx *Context) (string, error) { - return wc.client.NewSymmetricKey(ctx.context) -} - -// AddSymmetricKey stores the key, and returns its identifier. -func (wc *WhisperClient) AddSymmetricKey(ctx *Context, key []byte) (string, error) { - return wc.client.AddSymmetricKey(ctx.context, key) -} - -// GenerateSymmetricKeyFromPassword generates the key from password, stores it, and returns its identifier. -func (wc *WhisperClient) GenerateSymmetricKeyFromPassword(ctx *Context, passwd string) (string, error) { - return wc.client.GenerateSymmetricKeyFromPassword(ctx.context, passwd) -} - -// HasSymmetricKey returns an indication if the key associated with the given id is stored in the node. -func (wc *WhisperClient) HasSymmetricKey(ctx *Context, id string) (bool, error) { - return wc.client.HasSymmetricKey(ctx.context, id) -} - -// GetSymmetricKey returns the symmetric key associated with the given identifier. -func (wc *WhisperClient) GetSymmetricKey(ctx *Context, id string) ([]byte, error) { - return wc.client.GetSymmetricKey(ctx.context, id) -} - -// DeleteSymmetricKey deletes the symmetric key associated with the given identifier. -func (wc *WhisperClient) DeleteSymmetricKey(ctx *Context, id string) error { - return wc.client.DeleteSymmetricKey(ctx.context, id) -} - -// Post a message onto the network. -func (wc *WhisperClient) Post(ctx *Context, message *NewMessage) (string, error) { - return wc.client.Post(ctx.context, *message.newMessage) -} - -// NewHeadHandler is a client-side subscription callback to invoke on events and -// subscription failure. -type NewMessageHandler interface { - OnNewMessage(message *Message) - OnError(failure string) -} - -// SubscribeMessages subscribes to messages that match the given criteria. This method -// is only supported on bi-directional connections such as websockets and IPC. -// NewMessageFilter uses polling and is supported over HTTP. -func (wc *WhisperClient) SubscribeMessages(ctx *Context, criteria *Criteria, handler NewMessageHandler, buffer int) (*Subscription, error) { - // Subscribe to the event internally - ch := make(chan *whisper.Message, buffer) - rawSub, err := wc.client.SubscribeMessages(ctx.context, *criteria.criteria, ch) - if err != nil { - return nil, err - } - // Start up a dispatcher to feed into the callback - go func() { - for { - select { - case message := <-ch: - handler.OnNewMessage(&Message{message}) - - case err := <-rawSub.Err(): - if err != nil { - handler.OnError(err.Error()) - } - return - } - } - }() - return &Subscription{rawSub}, nil -} - -// NewMessageFilter creates a filter within the node. This filter can be used to poll -// for new messages (see FilterMessages) that satisfy the given criteria. A filter can -// timeout when it was polled for in whisper.filterTimeout. -func (wc *WhisperClient) NewMessageFilter(ctx *Context, criteria *Criteria) (string, error) { - return wc.client.NewMessageFilter(ctx.context, *criteria.criteria) -} - -// DeleteMessageFilter removes the filter associated with the given id. -func (wc *WhisperClient) DeleteMessageFilter(ctx *Context, id string) error { - return wc.client.DeleteMessageFilter(ctx.context, id) -} - -// GetFilterMessages retrieves all messages that are received between the last call to -// this function and match the criteria that where given when the filter was created. -func (wc *WhisperClient) GetFilterMessages(ctx *Context, id string) (*Messages, error) { - rawFilterMessages, err := wc.client.FilterMessages(ctx.context, id) - if err != nil { - return nil, err - } - res := make([]*whisper.Message, len(rawFilterMessages)) - copy(res, rawFilterMessages) - return &Messages{res}, nil -} diff --git a/mobile/types.go b/mobile/types.go index b9c44c25d7..9d75520282 100644 --- a/mobile/types.go +++ b/mobile/types.go @@ -26,7 +26,6 @@ import ( "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/rlp" - whisper "github.com/ethereum/go-ethereum/whisper/whisperv6" ) // A Nonce is a 64-bit hash which proves (combined with the mix-hash) that @@ -345,95 +344,3 @@ func (r *Receipt) GetLogs() *Logs { return &Logs{r.receipt.Logs} } func (r *Receipt) GetTxHash() *Hash { return &Hash{r.receipt.TxHash} } func (r *Receipt) GetContractAddress() *Address { return &Address{r.receipt.ContractAddress} } func (r *Receipt) GetGasUsed() int64 { return int64(r.receipt.GasUsed) } - -// Info represents a diagnostic information about the whisper node. -type Info struct { - info *whisper.Info -} - -// NewMessage represents a new whisper message that is posted through the RPC. -type NewMessage struct { - newMessage *whisper.NewMessage -} - -func NewNewMessage() *NewMessage { - nm := &NewMessage{ - newMessage: new(whisper.NewMessage), - } - return nm -} - -func (nm *NewMessage) GetSymKeyID() string { return nm.newMessage.SymKeyID } -func (nm *NewMessage) SetSymKeyID(symKeyID string) { nm.newMessage.SymKeyID = symKeyID } -func (nm *NewMessage) GetPublicKey() []byte { return nm.newMessage.PublicKey } -func (nm *NewMessage) SetPublicKey(publicKey []byte) { - nm.newMessage.PublicKey = common.CopyBytes(publicKey) -} -func (nm *NewMessage) GetSig() string { return nm.newMessage.Sig } -func (nm *NewMessage) SetSig(sig string) { nm.newMessage.Sig = sig } -func (nm *NewMessage) GetTTL() int64 { return int64(nm.newMessage.TTL) } -func (nm *NewMessage) SetTTL(ttl int64) { nm.newMessage.TTL = uint32(ttl) } -func (nm *NewMessage) GetPayload() []byte { return nm.newMessage.Payload } -func (nm *NewMessage) SetPayload(payload []byte) { nm.newMessage.Payload = common.CopyBytes(payload) } -func (nm *NewMessage) GetPowTime() int64 { return int64(nm.newMessage.PowTime) } -func (nm *NewMessage) SetPowTime(powTime int64) { nm.newMessage.PowTime = uint32(powTime) } -func (nm *NewMessage) GetPowTarget() float64 { return nm.newMessage.PowTarget } -func (nm *NewMessage) SetPowTarget(powTarget float64) { nm.newMessage.PowTarget = powTarget } -func (nm *NewMessage) GetTargetPeer() string { return nm.newMessage.TargetPeer } -func (nm *NewMessage) SetTargetPeer(targetPeer string) { nm.newMessage.TargetPeer = targetPeer } -func (nm *NewMessage) GetTopic() []byte { return nm.newMessage.Topic[:] } -func (nm *NewMessage) SetTopic(topic []byte) { nm.newMessage.Topic = whisper.BytesToTopic(topic) } - -// Message represents a whisper message. -type Message struct { - message *whisper.Message -} - -func (m *Message) GetSig() []byte { return m.message.Sig } -func (m *Message) GetTTL() int64 { return int64(m.message.TTL) } -func (m *Message) GetTimestamp() int64 { return int64(m.message.Timestamp) } -func (m *Message) GetPayload() []byte { return m.message.Payload } -func (m *Message) GetPoW() float64 { return m.message.PoW } -func (m *Message) GetHash() []byte { return m.message.Hash } -func (m *Message) GetDst() []byte { return m.message.Dst } - -// Messages represents an array of messages. -type Messages struct { - messages []*whisper.Message -} - -// Size returns the number of messages in the slice. -func (m *Messages) Size() int { - return len(m.messages) -} - -// Get returns the message at the given index from the slice. -func (m *Messages) Get(index int) (message *Message, _ error) { - if index < 0 || index >= len(m.messages) { - return nil, errors.New("index out of bounds") - } - return &Message{m.messages[index]}, nil -} - -// Criteria holds various filter options for inbound messages. -type Criteria struct { - criteria *whisper.Criteria -} - -func NewCriteria(topic []byte) *Criteria { - c := &Criteria{ - criteria: new(whisper.Criteria), - } - encodedTopic := whisper.BytesToTopic(topic) - c.criteria.Topics = []whisper.TopicType{encodedTopic} - return c -} - -func (c *Criteria) GetSymKeyID() string { return c.criteria.SymKeyID } -func (c *Criteria) SetSymKeyID(symKeyID string) { c.criteria.SymKeyID = symKeyID } -func (c *Criteria) GetPrivateKeyID() string { return c.criteria.PrivateKeyID } -func (c *Criteria) SetPrivateKeyID(privateKeyID string) { c.criteria.PrivateKeyID = privateKeyID } -func (c *Criteria) GetSig() []byte { return c.criteria.Sig } -func (c *Criteria) SetSig(sig []byte) { c.criteria.Sig = common.CopyBytes(sig) } -func (c *Criteria) GetMinPow() float64 { return c.criteria.MinPow } -func (c *Criteria) SetMinPow(pow float64) { c.criteria.MinPow = pow } diff --git a/tests/fuzzers/whisperv6/corpus/009c5adfa4fd685caef58e1ce932fa7fb209730a b/tests/fuzzers/whisperv6/corpus/009c5adfa4fd685caef58e1ce932fa7fb209730a deleted file mode 100644 index af2f0826730441cc5abb122074afd090fad2eb95..0000000000000000000000000000000000000000 GIT binary patch literal 0 HcmV?d00001 literal 61 XcmaEK>c|9A!Hu2QZfJ0QyTbqgS<53t diff --git a/tests/fuzzers/whisperv6/whisper-fuzzer.go b/tests/fuzzers/whisperv6/whisper-fuzzer.go deleted file mode 100644 index 379e4224fd..0000000000 --- a/tests/fuzzers/whisperv6/whisper-fuzzer.go +++ /dev/null @@ -1,90 +0,0 @@ -// Copyright 2019 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -package whisperv6 - -import ( - "bytes" - - "github.com/ethereum/go-ethereum/crypto" - "github.com/ethereum/go-ethereum/rlp" - "github.com/ethereum/go-ethereum/whisper/whisperv6" -) - -type MessageParams struct { - Topic whisperv6.TopicType - WorkTime uint32 - TTL uint32 - KeySym []byte - Payload []byte -} - -//export fuzzer_entry -func Fuzz(input []byte) int { - - var paramsDecoded MessageParams - err := rlp.DecodeBytes(input, ¶msDecoded) - if err != nil { - return 0 - } - var params whisperv6.MessageParams - params.KeySym = make([]byte, 32) - if len(paramsDecoded.KeySym) <= 32 { - copy(params.KeySym, paramsDecoded.KeySym) - } - if input[0] == 255 { - params.PoW = 0.01 - params.WorkTime = 1 - } else { - params.PoW = 0 - params.WorkTime = 0 - } - params.TTL = paramsDecoded.TTL - params.Payload = paramsDecoded.Payload - text := make([]byte, 0, 512) - text = append(text, params.Payload...) - params.Topic = paramsDecoded.Topic - params.Src, err = crypto.GenerateKey() - if err != nil { - return 0 - } - msg, err := whisperv6.NewSentMessage(¶ms) - if err != nil { - panic(err) - //return - } - env, err := msg.Wrap(¶ms) - if err != nil { - panic(err) - } - decrypted, err := env.OpenSymmetric(params.KeySym) - if err != nil { - panic(err) - } - if !decrypted.ValidateAndParse() { - panic("ValidateAndParse failed") - } - if !bytes.Equal(text, decrypted.Payload) { - panic("text != decrypted.Payload") - } - if len(decrypted.Signature) != 65 { - panic("Unexpected signature length") - } - if !whisperv6.IsPubKeyEqual(decrypted.Src, ¶ms.Src.PublicKey) { - panic("Unexpected public key") - } - return 0 -} diff --git a/whisper/mailserver/mailserver.go b/whisper/mailserver/mailserver.go deleted file mode 100644 index 7312bbe23d..0000000000 --- a/whisper/mailserver/mailserver.go +++ /dev/null @@ -1,209 +0,0 @@ -// 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 . - -// Package mailserver provides a naive, example mailserver implementation -package mailserver - -import ( - "encoding/binary" - "fmt" - - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/crypto" - "github.com/ethereum/go-ethereum/log" - "github.com/ethereum/go-ethereum/rlp" - whisper "github.com/ethereum/go-ethereum/whisper/whisperv6" - "github.com/syndtr/goleveldb/leveldb" - "github.com/syndtr/goleveldb/leveldb/errors" - "github.com/syndtr/goleveldb/leveldb/opt" - "github.com/syndtr/goleveldb/leveldb/util" -) - -// WMailServer represents the state data of the mailserver. -type WMailServer struct { - db *leveldb.DB - w *whisper.Whisper - pow float64 - key []byte -} - -type DBKey struct { - timestamp uint32 - hash common.Hash - raw []byte -} - -// NewDbKey is a helper function that creates a levelDB -// key from a hash and an integer. -func NewDbKey(t uint32, h common.Hash) *DBKey { - const sz = common.HashLength + 4 - var k DBKey - k.timestamp = t - k.hash = h - k.raw = make([]byte, sz) - binary.BigEndian.PutUint32(k.raw, k.timestamp) - copy(k.raw[4:], k.hash[:]) - return &k -} - -// Init initializes the mail server. -func (s *WMailServer) Init(shh *whisper.Whisper, path string, password string, pow float64) error { - var err error - if len(path) == 0 { - return fmt.Errorf("DB file is not specified") - } - - if len(password) == 0 { - return fmt.Errorf("password is not specified") - } - - s.db, err = leveldb.OpenFile(path, &opt.Options{OpenFilesCacheCapacity: 32}) - if _, iscorrupted := err.(*errors.ErrCorrupted); iscorrupted { - s.db, err = leveldb.RecoverFile(path, nil) - } - if err != nil { - return fmt.Errorf("open DB file: %s", err) - } - - s.w = shh - s.pow = pow - - MailServerKeyID, err := s.w.AddSymKeyFromPassword(password) - if err != nil { - return fmt.Errorf("create symmetric key: %s", err) - } - s.key, err = s.w.GetSymKey(MailServerKeyID) - if err != nil { - return fmt.Errorf("save symmetric key: %s", err) - } - return nil -} - -// Close cleans up before shutdown. -func (s *WMailServer) Close() { - if s.db != nil { - s.db.Close() - } -} - -// Archive stores the -func (s *WMailServer) Archive(env *whisper.Envelope) { - key := NewDbKey(env.Expiry-env.TTL, env.Hash()) - rawEnvelope, err := rlp.EncodeToBytes(env) - if err != nil { - log.Error(fmt.Sprintf("rlp.EncodeToBytes failed: %s", err)) - } else { - err = s.db.Put(key.raw, rawEnvelope, nil) - if err != nil { - log.Error(fmt.Sprintf("Writing to DB failed: %s", err)) - } - } -} - -// DeliverMail responds with saved messages upon request by the -// messages' owner. -func (s *WMailServer) DeliverMail(peer *whisper.Peer, request *whisper.Envelope) { - if peer == nil { - log.Error("Whisper peer is nil") - return - } - - ok, lower, upper, bloom := s.validateRequest(peer.ID(), request) - if ok { - s.processRequest(peer, lower, upper, bloom) - } -} - -func (s *WMailServer) processRequest(peer *whisper.Peer, lower, upper uint32, bloom []byte) []*whisper.Envelope { - ret := make([]*whisper.Envelope, 0) - var err error - var zero common.Hash - kl := NewDbKey(lower, zero) - ku := NewDbKey(upper+1, zero) // LevelDB is exclusive, while the Whisper API is inclusive - i := s.db.NewIterator(&util.Range{Start: kl.raw, Limit: ku.raw}, nil) - defer i.Release() - - for i.Next() { - var envelope whisper.Envelope - err = rlp.DecodeBytes(i.Value(), &envelope) - if err != nil { - log.Error(fmt.Sprintf("RLP decoding failed: %s", err)) - } - - if whisper.BloomFilterMatch(bloom, envelope.Bloom()) { - if peer == nil { - // used for test purposes - ret = append(ret, &envelope) - } else { - err = s.w.SendP2PDirect(peer, &envelope) - if err != nil { - log.Error(fmt.Sprintf("Failed to send direct message to peer: %s", err)) - return nil - } - } - } - } - - err = i.Error() - if err != nil { - log.Error(fmt.Sprintf("Level DB iterator error: %s", err)) - } - - return ret -} - -func (s *WMailServer) validateRequest(peerID []byte, request *whisper.Envelope) (bool, uint32, uint32, []byte) { - if s.pow > 0.0 && request.PoW() < s.pow { - return false, 0, 0, nil - } - - f := whisper.Filter{KeySym: s.key} - decrypted := request.Open(&f) - if decrypted == nil { - log.Warn("Failed to decrypt p2p request") - return false, 0, 0, nil - } - - src := crypto.FromECDSAPub(decrypted.Src) - if len(src)-len(peerID) == 1 { - src = src[1:] - } - - // if you want to check the signature, you can do it here. e.g.: - // if !bytes.Equal(peerID, src) { - if src == nil { - log.Warn("Wrong signature of p2p request") - return false, 0, 0, nil - } - - var bloom []byte - payloadSize := len(decrypted.Payload) - if payloadSize < 8 { - log.Warn("Undersized p2p request") - return false, 0, 0, nil - } else if payloadSize == 8 { - bloom = whisper.MakeFullNodeBloom() - } else if payloadSize < 8+whisper.BloomFilterSize { - log.Warn("Undersized bloom filter in p2p request") - return false, 0, 0, nil - } else { - bloom = decrypted.Payload[8 : 8+whisper.BloomFilterSize] - } - - lower := binary.BigEndian.Uint32(decrypted.Payload[:4]) - upper := binary.BigEndian.Uint32(decrypted.Payload[4:8]) - return true, lower, upper, bloom -} diff --git a/whisper/mailserver/server_test.go b/whisper/mailserver/server_test.go deleted file mode 100644 index 069ec97d09..0000000000 --- a/whisper/mailserver/server_test.go +++ /dev/null @@ -1,235 +0,0 @@ -// 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 . - -package mailserver - -import ( - "bytes" - "crypto/ecdsa" - "encoding/binary" - "io/ioutil" - "math/rand" - "testing" - "time" - - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/crypto" - "github.com/ethereum/go-ethereum/node" - whisper "github.com/ethereum/go-ethereum/whisper/whisperv6" -) - -const powRequirement = 0.00001 - -var keyID string -var shh *whisper.Whisper -var seed = time.Now().Unix() - -type ServerTestParams struct { - topic whisper.TopicType - low uint32 - upp uint32 - key *ecdsa.PrivateKey -} - -func assert(statement bool, text string, t *testing.T) { - if !statement { - t.Fatal(text) - } -} - -func TestDBKey(t *testing.T) { - var h common.Hash - i := uint32(time.Now().Unix()) - k := NewDbKey(i, h) - assert(len(k.raw) == common.HashLength+4, "wrong DB key length", t) - assert(byte(i%0x100) == k.raw[3], "raw representation should be big endian", t) - assert(byte(i/0x1000000) == k.raw[0], "big endian expected", t) -} - -func generateEnvelope(t *testing.T) *whisper.Envelope { - h := crypto.Keccak256Hash([]byte("test sample data")) - params := &whisper.MessageParams{ - KeySym: h[:], - Topic: whisper.TopicType{0x1F, 0x7E, 0xA1, 0x7F}, - Payload: []byte("test payload"), - PoW: powRequirement, - WorkTime: 2, - } - - msg, err := whisper.NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - env, err := msg.Wrap(params) - if err != nil { - t.Fatalf("failed to wrap with seed %d: %s.", seed, err) - } - return env -} - -func TestMailServer(t *testing.T) { - const password = "password_for_this_test" - const dbPath = "whisper-server-test" - - dir, err := ioutil.TempDir("", dbPath) - if err != nil { - t.Fatal(err) - } - - var server WMailServer - - stack, w := newNode(t) - defer stack.Close() - shh = w - - shh.RegisterServer(&server) - - err = server.Init(shh, dir, password, powRequirement) - if err != nil { - t.Fatal(err) - } - defer server.Close() - - keyID, err = shh.AddSymKeyFromPassword(password) - if err != nil { - t.Fatalf("Failed to create symmetric key for mail request: %s", err) - } - - rand.Seed(seed) - env := generateEnvelope(t) - server.Archive(env) - deliverTest(t, &server, env) -} - -func deliverTest(t *testing.T, server *WMailServer, env *whisper.Envelope) { - id, err := shh.NewKeyPair() - if err != nil { - t.Fatalf("failed to generate new key pair with seed %d: %s.", seed, err) - } - testPeerID, err := shh.GetPrivateKey(id) - if err != nil { - t.Fatalf("failed to retrieve new key pair with seed %d: %s.", seed, err) - } - birth := env.Expiry - env.TTL - p := &ServerTestParams{ - topic: env.Topic, - low: birth - 1, - upp: birth + 1, - key: testPeerID, - } - - singleRequest(t, server, env, p, true) - - p.low, p.upp = birth+1, 0xffffffff - singleRequest(t, server, env, p, false) - - p.low, p.upp = 0, birth-1 - singleRequest(t, server, env, p, false) - - p.low = birth - 1 - p.upp = birth + 1 - p.topic[0] = 0xFF - singleRequest(t, server, env, p, false) -} - -func singleRequest(t *testing.T, server *WMailServer, env *whisper.Envelope, p *ServerTestParams, expect bool) { - request := createRequest(t, p) - src := crypto.FromECDSAPub(&p.key.PublicKey) - ok, lower, upper, bloom := server.validateRequest(src, request) - if !ok { - t.Fatalf("request validation failed, seed: %d.", seed) - } - if lower != p.low { - t.Fatalf("request validation failed (lower bound), seed: %d.", seed) - } - if upper != p.upp { - t.Fatalf("request validation failed (upper bound), seed: %d.", seed) - } - expectedBloom := whisper.TopicToBloom(p.topic) - if !bytes.Equal(bloom, expectedBloom) { - t.Fatalf("request validation failed (topic), seed: %d.", seed) - } - - var exist bool - mail := server.processRequest(nil, p.low, p.upp, bloom) - for _, msg := range mail { - if msg.Hash() == env.Hash() { - exist = true - break - } - } - - if exist != expect { - t.Fatalf("error: exist = %v, seed: %d.", exist, seed) - } - - src[0]++ - ok, lower, upper, _ = server.validateRequest(src, request) - if !ok { - // request should be valid regardless of signature - t.Fatalf("request validation false negative, seed: %d (lower: %d, upper: %d).", seed, lower, upper) - } -} - -func createRequest(t *testing.T, p *ServerTestParams) *whisper.Envelope { - bloom := whisper.TopicToBloom(p.topic) - data := make([]byte, 8) - binary.BigEndian.PutUint32(data, p.low) - binary.BigEndian.PutUint32(data[4:], p.upp) - data = append(data, bloom...) - - key, err := shh.GetSymKey(keyID) - if err != nil { - t.Fatalf("failed to retrieve sym key with seed %d: %s.", seed, err) - } - - params := &whisper.MessageParams{ - KeySym: key, - Topic: p.topic, - Payload: data, - PoW: powRequirement * 2, - WorkTime: 2, - Src: p.key, - } - - msg, err := whisper.NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - env, err := msg.Wrap(params) - if err != nil { - t.Fatalf("failed to wrap with seed %d: %s.", seed, err) - } - return env -} - -// newNode creates a new node using a default config and -// creates and registers a new Whisper service on it. -func newNode(t *testing.T) (*node.Node, *whisper.Whisper) { - stack, err := node.New(&node.DefaultConfig) - if err != nil { - t.Fatalf("could not create new node: %v", err) - } - w, err := whisper.New(stack, &whisper.DefaultConfig) - if err != nil { - t.Fatalf("could not create new whisper service: %v", err) - } - err = stack.Start() - if err != nil { - t.Fatalf("could not start node: %v", err) - } - return stack, w -} diff --git a/whisper/shhclient/client.go b/whisper/shhclient/client.go deleted file mode 100644 index 4973113674..0000000000 --- a/whisper/shhclient/client.go +++ /dev/null @@ -1,193 +0,0 @@ -// 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 . - -package shhclient - -import ( - "context" - - ethereum "github.com/ethereum/go-ethereum" - "github.com/ethereum/go-ethereum/common/hexutil" - "github.com/ethereum/go-ethereum/rpc" - whisper "github.com/ethereum/go-ethereum/whisper/whisperv6" -) - -// Client defines typed wrappers for the Whisper v6 RPC API. -type Client struct { - c *rpc.Client -} - -// Dial connects a client to the given URL. -func Dial(rawurl string) (*Client, error) { - c, err := rpc.Dial(rawurl) - if err != nil { - return nil, err - } - return NewClient(c), nil -} - -// NewClient creates a client that uses the given RPC client. -func NewClient(c *rpc.Client) *Client { - return &Client{c} -} - -// Version returns the Whisper sub-protocol version. -func (sc *Client) Version(ctx context.Context) (string, error) { - var result string - err := sc.c.CallContext(ctx, &result, "shh_version") - return result, err -} - -// Info returns diagnostic information about the whisper node. -func (sc *Client) Info(ctx context.Context) (whisper.Info, error) { - var info whisper.Info - err := sc.c.CallContext(ctx, &info, "shh_info") - return info, err -} - -// SetMaxMessageSize sets the maximal message size allowed by this node. Incoming -// and outgoing messages with a larger size will be rejected. Whisper message size -// can never exceed the limit imposed by the underlying P2P protocol (10 Mb). -func (sc *Client) SetMaxMessageSize(ctx context.Context, size uint32) error { - var ignored bool - return sc.c.CallContext(ctx, &ignored, "shh_setMaxMessageSize", size) -} - -// SetMinimumPoW (experimental) sets the minimal PoW required by this node. -// This experimental function was introduced for the future dynamic adjustment of -// PoW requirement. If the node is overwhelmed with messages, it should raise the -// PoW requirement and notify the peers. The new value should be set relative to -// the old value (e.g. double). The old value could be obtained via shh_info call. -func (sc *Client) SetMinimumPoW(ctx context.Context, pow float64) error { - var ignored bool - return sc.c.CallContext(ctx, &ignored, "shh_setMinPoW", pow) -} - -// MarkTrustedPeer marks specific peer trusted, which will allow it to send historic (expired) messages. -// Note This function is not adding new nodes, the node needs to exists as a peer. -func (sc *Client) MarkTrustedPeer(ctx context.Context, enode string) error { - var ignored bool - return sc.c.CallContext(ctx, &ignored, "shh_markTrustedPeer", enode) -} - -// NewKeyPair generates a new public and private key pair for message decryption and encryption. -// It returns an identifier that can be used to refer to the key. -func (sc *Client) NewKeyPair(ctx context.Context) (string, error) { - var id string - return id, sc.c.CallContext(ctx, &id, "shh_newKeyPair") -} - -// AddPrivateKey stored the key pair, and returns its ID. -func (sc *Client) AddPrivateKey(ctx context.Context, key []byte) (string, error) { - var id string - return id, sc.c.CallContext(ctx, &id, "shh_addPrivateKey", hexutil.Bytes(key)) -} - -// DeleteKeyPair delete the specifies key. -func (sc *Client) DeleteKeyPair(ctx context.Context, id string) (string, error) { - var ignored bool - return id, sc.c.CallContext(ctx, &ignored, "shh_deleteKeyPair", id) -} - -// HasKeyPair returns an indication if the node has a private key or -// key pair matching the given ID. -func (sc *Client) HasKeyPair(ctx context.Context, id string) (bool, error) { - var has bool - return has, sc.c.CallContext(ctx, &has, "shh_hasKeyPair", id) -} - -// PublicKey return the public key for a key ID. -func (sc *Client) PublicKey(ctx context.Context, id string) ([]byte, error) { - var key hexutil.Bytes - return []byte(key), sc.c.CallContext(ctx, &key, "shh_getPublicKey", id) -} - -// PrivateKey return the private key for a key ID. -func (sc *Client) PrivateKey(ctx context.Context, id string) ([]byte, error) { - var key hexutil.Bytes - return []byte(key), sc.c.CallContext(ctx, &key, "shh_getPrivateKey", id) -} - -// NewSymmetricKey generates a random symmetric key and returns its identifier. -// Can be used encrypting and decrypting messages where the key is known to both parties. -func (sc *Client) NewSymmetricKey(ctx context.Context) (string, error) { - var id string - return id, sc.c.CallContext(ctx, &id, "shh_newSymKey") -} - -// AddSymmetricKey stores the key, and returns its identifier. -func (sc *Client) AddSymmetricKey(ctx context.Context, key []byte) (string, error) { - var id string - return id, sc.c.CallContext(ctx, &id, "shh_addSymKey", hexutil.Bytes(key)) -} - -// GenerateSymmetricKeyFromPassword generates the key from password, stores it, and returns its identifier. -func (sc *Client) GenerateSymmetricKeyFromPassword(ctx context.Context, passwd string) (string, error) { - var id string - return id, sc.c.CallContext(ctx, &id, "shh_generateSymKeyFromPassword", passwd) -} - -// HasSymmetricKey returns an indication if the key associated with the given id is stored in the node. -func (sc *Client) HasSymmetricKey(ctx context.Context, id string) (bool, error) { - var found bool - return found, sc.c.CallContext(ctx, &found, "shh_hasSymKey", id) -} - -// GetSymmetricKey returns the symmetric key associated with the given identifier. -func (sc *Client) GetSymmetricKey(ctx context.Context, id string) ([]byte, error) { - var key hexutil.Bytes - return []byte(key), sc.c.CallContext(ctx, &key, "shh_getSymKey", id) -} - -// DeleteSymmetricKey deletes the symmetric key associated with the given identifier. -func (sc *Client) DeleteSymmetricKey(ctx context.Context, id string) error { - var ignored bool - return sc.c.CallContext(ctx, &ignored, "shh_deleteSymKey", id) -} - -// Post a message onto the network. -func (sc *Client) Post(ctx context.Context, message whisper.NewMessage) (string, error) { - var hash string - return hash, sc.c.CallContext(ctx, &hash, "shh_post", message) -} - -// SubscribeMessages subscribes to messages that match the given criteria. This method -// is only supported on bi-directional connections such as websockets and IPC. -// NewMessageFilter uses polling and is supported over HTTP. -func (sc *Client) SubscribeMessages(ctx context.Context, criteria whisper.Criteria, ch chan<- *whisper.Message) (ethereum.Subscription, error) { - return sc.c.ShhSubscribe(ctx, ch, "messages", criteria) -} - -// NewMessageFilter creates a filter within the node. This filter can be used to poll -// for new messages (see FilterMessages) that satisfy the given criteria. A filter can -// timeout when it was polled for in whisper.filterTimeout. -func (sc *Client) NewMessageFilter(ctx context.Context, criteria whisper.Criteria) (string, error) { - var id string - return id, sc.c.CallContext(ctx, &id, "shh_newMessageFilter", criteria) -} - -// DeleteMessageFilter removes the filter associated with the given id. -func (sc *Client) DeleteMessageFilter(ctx context.Context, id string) error { - var ignored bool - return sc.c.CallContext(ctx, &ignored, "shh_deleteMessageFilter", id) -} - -// FilterMessages retrieves all messages that are received between the last call to -// this function and match the criteria that where given when the filter was created. -func (sc *Client) FilterMessages(ctx context.Context, id string) ([]*whisper.Message, error) { - var messages []*whisper.Message - return messages, sc.c.CallContext(ctx, &messages, "shh_getFilterMessages", id) -} diff --git a/whisper/whisperv6/api.go b/whisper/whisperv6/api.go deleted file mode 100644 index d6d4c8d3de..0000000000 --- a/whisper/whisperv6/api.go +++ /dev/null @@ -1,593 +0,0 @@ -// Copyright 2016 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -package whisperv6 - -import ( - "context" - "crypto/ecdsa" - "errors" - "fmt" - "sync" - "time" - - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/common/hexutil" - "github.com/ethereum/go-ethereum/crypto" - "github.com/ethereum/go-ethereum/log" - "github.com/ethereum/go-ethereum/p2p/enode" - "github.com/ethereum/go-ethereum/rpc" -) - -// List of errors -var ( - ErrSymAsym = errors.New("specify either a symmetric or an asymmetric key") - ErrInvalidSymmetricKey = errors.New("invalid symmetric key") - ErrInvalidPublicKey = errors.New("invalid public key") - ErrInvalidSigningPubKey = errors.New("invalid signing public key") - ErrTooLowPoW = errors.New("message rejected, PoW too low") - ErrNoTopics = errors.New("missing topic(s)") -) - -// PublicWhisperAPI provides the whisper RPC service that can be -// use publicly without security implications. -type PublicWhisperAPI struct { - w *Whisper - - mu sync.Mutex - lastUsed map[string]time.Time // keeps track when a filter was polled for the last time. -} - -// NewPublicWhisperAPI create a new RPC whisper service. -func NewPublicWhisperAPI(w *Whisper) *PublicWhisperAPI { - api := &PublicWhisperAPI{ - w: w, - lastUsed: make(map[string]time.Time), - } - return api -} - -// Version returns the Whisper sub-protocol version. -func (api *PublicWhisperAPI) Version(ctx context.Context) string { - return ProtocolVersionStr -} - -// Info contains diagnostic information. -type Info struct { - Memory int `json:"memory"` // Memory size of the floating messages in bytes. - Messages int `json:"messages"` // Number of floating messages. - MinPow float64 `json:"minPow"` // Minimal accepted PoW - MaxMessageSize uint32 `json:"maxMessageSize"` // Maximum accepted message size -} - -// Info returns diagnostic information about the whisper node. -func (api *PublicWhisperAPI) Info(ctx context.Context) Info { - stats := api.w.Stats() - return Info{ - Memory: stats.memoryUsed, - Messages: len(api.w.messageQueue) + len(api.w.p2pMsgQueue), - MinPow: api.w.MinPow(), - MaxMessageSize: api.w.MaxMessageSize(), - } -} - -// SetMaxMessageSize sets the maximum message size that is accepted. -// Upper limit is defined by MaxMessageSize. -func (api *PublicWhisperAPI) SetMaxMessageSize(ctx context.Context, size uint32) (bool, error) { - return true, api.w.SetMaxMessageSize(size) -} - -// SetMinPoW sets the minimum PoW, and notifies the peers. -func (api *PublicWhisperAPI) SetMinPoW(ctx context.Context, pow float64) (bool, error) { - return true, api.w.SetMinimumPoW(pow) -} - -// SetBloomFilter sets the new value of bloom filter, and notifies the peers. -func (api *PublicWhisperAPI) SetBloomFilter(ctx context.Context, bloom hexutil.Bytes) (bool, error) { - return true, api.w.SetBloomFilter(bloom) -} - -// MarkTrustedPeer marks a peer trusted, which will allow it to send historic (expired) messages. -// Note: This function is not adding new nodes, the node needs to exists as a peer. -func (api *PublicWhisperAPI) MarkTrustedPeer(ctx context.Context, url string) (bool, error) { - n, err := enode.Parse(enode.ValidSchemes, url) - if err != nil { - return false, err - } - return true, api.w.AllowP2PMessagesFromPeer(n.ID().Bytes()) -} - -// NewKeyPair generates a new public and private key pair for message decryption and encryption. -// It returns an ID that can be used to refer to the keypair. -func (api *PublicWhisperAPI) NewKeyPair(ctx context.Context) (string, error) { - return api.w.NewKeyPair() -} - -// AddPrivateKey imports the given private key. -func (api *PublicWhisperAPI) AddPrivateKey(ctx context.Context, privateKey hexutil.Bytes) (string, error) { - key, err := crypto.ToECDSA(privateKey) - if err != nil { - return "", err - } - return api.w.AddKeyPair(key) -} - -// DeleteKeyPair removes the key with the given key if it exists. -func (api *PublicWhisperAPI) DeleteKeyPair(ctx context.Context, key string) (bool, error) { - if ok := api.w.DeleteKeyPair(key); ok { - return true, nil - } - return false, fmt.Errorf("key pair %s not found", key) -} - -// HasKeyPair returns an indication if the node has a key pair that is associated with the given id. -func (api *PublicWhisperAPI) HasKeyPair(ctx context.Context, id string) bool { - return api.w.HasKeyPair(id) -} - -// GetPublicKey returns the public key associated with the given key. The key is the hex -// encoded representation of a key in the form specified in section 4.3.6 of ANSI X9.62. -func (api *PublicWhisperAPI) GetPublicKey(ctx context.Context, id string) (hexutil.Bytes, error) { - key, err := api.w.GetPrivateKey(id) - if err != nil { - return hexutil.Bytes{}, err - } - return crypto.FromECDSAPub(&key.PublicKey), nil -} - -// GetPrivateKey returns the private key associated with the given key. The key is the hex -// encoded representation of a key in the form specified in section 4.3.6 of ANSI X9.62. -func (api *PublicWhisperAPI) GetPrivateKey(ctx context.Context, id string) (hexutil.Bytes, error) { - key, err := api.w.GetPrivateKey(id) - if err != nil { - return hexutil.Bytes{}, err - } - return crypto.FromECDSA(key), nil -} - -// NewSymKey generate a random symmetric key. -// It returns an ID that can be used to refer to the key. -// Can be used encrypting and decrypting messages where the key is known to both parties. -func (api *PublicWhisperAPI) NewSymKey(ctx context.Context) (string, error) { - return api.w.GenerateSymKey() -} - -// AddSymKey import a symmetric key. -// It returns an ID that can be used to refer to the key. -// Can be used encrypting and decrypting messages where the key is known to both parties. -func (api *PublicWhisperAPI) AddSymKey(ctx context.Context, key hexutil.Bytes) (string, error) { - return api.w.AddSymKeyDirect([]byte(key)) -} - -// GenerateSymKeyFromPassword derive a key from the given password, stores it, and returns its ID. -func (api *PublicWhisperAPI) GenerateSymKeyFromPassword(ctx context.Context, passwd string) (string, error) { - return api.w.AddSymKeyFromPassword(passwd) -} - -// HasSymKey returns an indication if the node has a symmetric key associated with the given key. -func (api *PublicWhisperAPI) HasSymKey(ctx context.Context, id string) bool { - return api.w.HasSymKey(id) -} - -// GetSymKey returns the symmetric key associated with the given id. -func (api *PublicWhisperAPI) GetSymKey(ctx context.Context, id string) (hexutil.Bytes, error) { - return api.w.GetSymKey(id) -} - -// DeleteSymKey deletes the symmetric key that is associated with the given id. -func (api *PublicWhisperAPI) DeleteSymKey(ctx context.Context, id string) bool { - return api.w.DeleteSymKey(id) -} - -// MakeLightClient turns the node into light client, which does not forward -// any incoming messages, and sends only messages originated in this node. -func (api *PublicWhisperAPI) MakeLightClient(ctx context.Context) bool { - api.w.SetLightClientMode(true) - return api.w.LightClientMode() -} - -// CancelLightClient cancels light client mode. -func (api *PublicWhisperAPI) CancelLightClient(ctx context.Context) bool { - api.w.SetLightClientMode(false) - return !api.w.LightClientMode() -} - -//go:generate gencodec -type NewMessage -field-override newMessageOverride -out gen_newmessage_json.go - -// NewMessage represents a new whisper message that is posted through the RPC. -type NewMessage struct { - SymKeyID string `json:"symKeyID"` - PublicKey []byte `json:"pubKey"` - Sig string `json:"sig"` - TTL uint32 `json:"ttl"` - Topic TopicType `json:"topic"` - Payload []byte `json:"payload"` - Padding []byte `json:"padding"` - PowTime uint32 `json:"powTime"` - PowTarget float64 `json:"powTarget"` - TargetPeer string `json:"targetPeer"` -} - -type newMessageOverride struct { - PublicKey hexutil.Bytes - Payload hexutil.Bytes - Padding hexutil.Bytes -} - -// Post posts a message on the Whisper network. -// returns the hash of the message in case of success. -func (api *PublicWhisperAPI) Post(ctx context.Context, req NewMessage) (hexutil.Bytes, error) { - var ( - symKeyGiven = len(req.SymKeyID) > 0 - pubKeyGiven = len(req.PublicKey) > 0 - err error - ) - - // user must specify either a symmetric or an asymmetric key - if (symKeyGiven && pubKeyGiven) || (!symKeyGiven && !pubKeyGiven) { - return nil, ErrSymAsym - } - - params := &MessageParams{ - TTL: req.TTL, - Payload: req.Payload, - Padding: req.Padding, - WorkTime: req.PowTime, - PoW: req.PowTarget, - Topic: req.Topic, - } - - // Set key that is used to sign the message - if len(req.Sig) > 0 { - if params.Src, err = api.w.GetPrivateKey(req.Sig); err != nil { - return nil, err - } - } - - // Set symmetric key that is used to encrypt the message - if symKeyGiven { - if params.Topic == (TopicType{}) { // topics are mandatory with symmetric encryption - return nil, ErrNoTopics - } - if params.KeySym, err = api.w.GetSymKey(req.SymKeyID); err != nil { - return nil, err - } - if !validateDataIntegrity(params.KeySym, aesKeyLength) { - return nil, ErrInvalidSymmetricKey - } - } - - // Set asymmetric key that is used to encrypt the message - if pubKeyGiven { - if params.Dst, err = crypto.UnmarshalPubkey(req.PublicKey); err != nil { - return nil, ErrInvalidPublicKey - } - } - - // encrypt and sent message - whisperMsg, err := NewSentMessage(params) - if err != nil { - return nil, err - } - - var result []byte - env, err := whisperMsg.Wrap(params) - if err != nil { - return nil, err - } - - // send to specific node (skip PoW check) - if len(req.TargetPeer) > 0 { - n, err := enode.Parse(enode.ValidSchemes, req.TargetPeer) - if err != nil { - return nil, fmt.Errorf("failed to parse target peer: %s", err) - } - err = api.w.SendP2PMessage(n.ID().Bytes(), env) - if err == nil { - hash := env.Hash() - result = hash[:] - } - return result, err - } - - // ensure that the message PoW meets the node's minimum accepted PoW - if req.PowTarget < api.w.MinPow() { - return nil, ErrTooLowPoW - } - - err = api.w.Send(env) - if err == nil { - hash := env.Hash() - result = hash[:] - } - return result, err -} - -//go:generate gencodec -type Criteria -field-override criteriaOverride -out gen_criteria_json.go - -// Criteria holds various filter options for inbound messages. -type Criteria struct { - SymKeyID string `json:"symKeyID"` - PrivateKeyID string `json:"privateKeyID"` - Sig []byte `json:"sig"` - MinPow float64 `json:"minPow"` - Topics []TopicType `json:"topics"` - AllowP2P bool `json:"allowP2P"` -} - -type criteriaOverride struct { - Sig hexutil.Bytes -} - -// Messages set up a subscription that fires events when messages arrive that match -// the given set of criteria. -func (api *PublicWhisperAPI) Messages(ctx context.Context, crit Criteria) (*rpc.Subscription, error) { - var ( - symKeyGiven = len(crit.SymKeyID) > 0 - pubKeyGiven = len(crit.PrivateKeyID) > 0 - err error - ) - - // ensure that the RPC connection supports subscriptions - notifier, supported := rpc.NotifierFromContext(ctx) - if !supported { - return nil, rpc.ErrNotificationsUnsupported - } - - // user must specify either a symmetric or an asymmetric key - if (symKeyGiven && pubKeyGiven) || (!symKeyGiven && !pubKeyGiven) { - return nil, ErrSymAsym - } - - filter := Filter{ - PoW: crit.MinPow, - Messages: make(map[common.Hash]*ReceivedMessage), - AllowP2P: crit.AllowP2P, - } - - if len(crit.Sig) > 0 { - if filter.Src, err = crypto.UnmarshalPubkey(crit.Sig); err != nil { - return nil, ErrInvalidSigningPubKey - } - } - - for i, bt := range crit.Topics { - if len(bt) == 0 || len(bt) > 4 { - return nil, fmt.Errorf("subscribe: topic %d has wrong size: %d", i, len(bt)) - } - filter.Topics = append(filter.Topics, bt[:]) - } - - // listen for message that are encrypted with the given symmetric key - if symKeyGiven { - if len(filter.Topics) == 0 { - return nil, ErrNoTopics - } - key, err := api.w.GetSymKey(crit.SymKeyID) - if err != nil { - return nil, err - } - if !validateDataIntegrity(key, aesKeyLength) { - return nil, ErrInvalidSymmetricKey - } - filter.KeySym = key - filter.SymKeyHash = crypto.Keccak256Hash(filter.KeySym) - } - - // listen for messages that are encrypted with the given public key - if pubKeyGiven { - filter.KeyAsym, err = api.w.GetPrivateKey(crit.PrivateKeyID) - if err != nil || filter.KeyAsym == nil { - return nil, ErrInvalidPublicKey - } - } - - id, err := api.w.Subscribe(&filter) - if err != nil { - return nil, err - } - - // create subscription and start waiting for message events - rpcSub := notifier.CreateSubscription() - go func() { - // for now poll internally, refactor whisper internal for channel support - ticker := time.NewTicker(250 * time.Millisecond) - defer ticker.Stop() - - for { - select { - case <-ticker.C: - if filter := api.w.GetFilter(id); filter != nil { - for _, rpcMessage := range toMessage(filter.Retrieve()) { - if err := notifier.Notify(rpcSub.ID, rpcMessage); err != nil { - log.Error("Failed to send notification", "err", err) - } - } - } - case <-rpcSub.Err(): - api.w.Unsubscribe(id) - return - case <-notifier.Closed(): - api.w.Unsubscribe(id) - return - } - } - }() - - return rpcSub, nil -} - -//go:generate gencodec -type Message -field-override messageOverride -out gen_message_json.go - -// Message is the RPC representation of a whisper message. -type Message struct { - Sig []byte `json:"sig,omitempty"` - TTL uint32 `json:"ttl"` - Timestamp uint32 `json:"timestamp"` - Topic TopicType `json:"topic"` - Payload []byte `json:"payload"` - Padding []byte `json:"padding"` - PoW float64 `json:"pow"` - Hash []byte `json:"hash"` - Dst []byte `json:"recipientPublicKey,omitempty"` -} - -type messageOverride struct { - Sig hexutil.Bytes - Payload hexutil.Bytes - Padding hexutil.Bytes - Hash hexutil.Bytes - Dst hexutil.Bytes -} - -// ToWhisperMessage converts an internal message into an API version. -func ToWhisperMessage(message *ReceivedMessage) *Message { - msg := Message{ - Payload: message.Payload, - Padding: message.Padding, - Timestamp: message.Sent, - TTL: message.TTL, - PoW: message.PoW, - Hash: message.EnvelopeHash.Bytes(), - Topic: message.Topic, - } - - if message.Dst != nil { - b := crypto.FromECDSAPub(message.Dst) - if b != nil { - msg.Dst = b - } - } - - if isMessageSigned(message.Raw[0]) { - b := crypto.FromECDSAPub(message.SigToPubKey()) - if b != nil { - msg.Sig = b - } - } - - return &msg -} - -// toMessage converts a set of messages to its RPC representation. -func toMessage(messages []*ReceivedMessage) []*Message { - msgs := make([]*Message, len(messages)) - for i, msg := range messages { - msgs[i] = ToWhisperMessage(msg) - } - return msgs -} - -// GetFilterMessages returns the messages that match the filter criteria and -// are received between the last poll and now. -func (api *PublicWhisperAPI) GetFilterMessages(id string) ([]*Message, error) { - api.mu.Lock() - f := api.w.GetFilter(id) - if f == nil { - api.mu.Unlock() - return nil, fmt.Errorf("filter not found") - } - api.lastUsed[id] = time.Now() - api.mu.Unlock() - - receivedMessages := f.Retrieve() - messages := make([]*Message, 0, len(receivedMessages)) - for _, msg := range receivedMessages { - messages = append(messages, ToWhisperMessage(msg)) - } - - return messages, nil -} - -// DeleteMessageFilter deletes a filter. -func (api *PublicWhisperAPI) DeleteMessageFilter(id string) (bool, error) { - api.mu.Lock() - defer api.mu.Unlock() - - delete(api.lastUsed, id) - return true, api.w.Unsubscribe(id) -} - -// NewMessageFilter creates a new filter that can be used to poll for -// (new) messages that satisfy the given criteria. -func (api *PublicWhisperAPI) NewMessageFilter(req Criteria) (string, error) { - var ( - src *ecdsa.PublicKey - keySym []byte - keyAsym *ecdsa.PrivateKey - topics [][]byte - - symKeyGiven = len(req.SymKeyID) > 0 - asymKeyGiven = len(req.PrivateKeyID) > 0 - - err error - ) - - // user must specify either a symmetric or an asymmetric key - if (symKeyGiven && asymKeyGiven) || (!symKeyGiven && !asymKeyGiven) { - return "", ErrSymAsym - } - - if len(req.Sig) > 0 { - if src, err = crypto.UnmarshalPubkey(req.Sig); err != nil { - return "", ErrInvalidSigningPubKey - } - } - - if symKeyGiven { - if keySym, err = api.w.GetSymKey(req.SymKeyID); err != nil { - return "", err - } - if !validateDataIntegrity(keySym, aesKeyLength) { - return "", ErrInvalidSymmetricKey - } - } - - if asymKeyGiven { - if keyAsym, err = api.w.GetPrivateKey(req.PrivateKeyID); err != nil { - return "", err - } - } - - if len(req.Topics) > 0 { - topics = make([][]byte, len(req.Topics)) - for i, topic := range req.Topics { - topics[i] = make([]byte, TopicLength) - copy(topics[i], topic[:]) - } - } - - f := &Filter{ - Src: src, - KeySym: keySym, - KeyAsym: keyAsym, - PoW: req.MinPow, - AllowP2P: req.AllowP2P, - Topics: topics, - Messages: make(map[common.Hash]*ReceivedMessage), - } - - id, err := api.w.Subscribe(f) - if err != nil { - return "", err - } - - api.mu.Lock() - api.lastUsed[id] = time.Now() - api.mu.Unlock() - - return id, nil -} diff --git a/whisper/whisperv6/api_test.go b/whisper/whisperv6/api_test.go deleted file mode 100644 index 759ef221ed..0000000000 --- a/whisper/whisperv6/api_test.go +++ /dev/null @@ -1,64 +0,0 @@ -// Copyright 2018 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -package whisperv6 - -import ( - "bytes" - "testing" - "time" -) - -func TestMultipleTopicCopyInNewMessageFilter(t *testing.T) { - stack, w := newNodeWithWhisper(t) - defer stack.Close() - - keyID, err := w.GenerateSymKey() - if err != nil { - t.Fatalf("Error generating symmetric key: %v", err) - } - api := PublicWhisperAPI{ - w: w, - lastUsed: make(map[string]time.Time), - } - - t1 := [4]byte{0xde, 0xea, 0xbe, 0xef} - t2 := [4]byte{0xca, 0xfe, 0xde, 0xca} - - crit := Criteria{ - SymKeyID: keyID, - Topics: []TopicType{TopicType(t1), TopicType(t2)}, - } - - _, err = api.NewMessageFilter(crit) - if err != nil { - t.Fatalf("Error creating the filter: %v", err) - } - - found := false - candidates := w.filters.getWatchersByTopic(TopicType(t1)) - for _, f := range candidates { - if len(f.Topics) == 2 { - if bytes.Equal(f.Topics[0], t1[:]) && bytes.Equal(f.Topics[1], t2[:]) { - found = true - } - } - } - - if !found { - t.Fatalf("Could not find filter with both topics") - } -} diff --git a/whisper/whisperv6/benchmarks_test.go b/whisper/whisperv6/benchmarks_test.go deleted file mode 100644 index 0473179da5..0000000000 --- a/whisper/whisperv6/benchmarks_test.go +++ /dev/null @@ -1,208 +0,0 @@ -// Copyright 2016 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -package whisperv6 - -import ( - "crypto/sha256" - "testing" - - "github.com/ethereum/go-ethereum/crypto" - "golang.org/x/crypto/pbkdf2" -) - -func BenchmarkDeriveKeyMaterial(b *testing.B) { - for i := 0; i < b.N; i++ { - pbkdf2.Key([]byte("test"), nil, 65356, aesKeyLength, sha256.New) - } -} - -func BenchmarkEncryptionSym(b *testing.B) { - InitSingleTest() - - params, err := generateMessageParams() - if err != nil { - b.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - - for i := 0; i < b.N; i++ { - msg, _ := NewSentMessage(params) - _, err := msg.Wrap(params) - if err != nil { - b.Errorf("failed Wrap with seed %d: %s.", seed, err) - b.Errorf("i = %d, len(msg.Raw) = %d, params.Payload = %d.", i, len(msg.Raw), len(params.Payload)) - return - } - } -} - -func BenchmarkEncryptionAsym(b *testing.B) { - InitSingleTest() - - params, err := generateMessageParams() - if err != nil { - b.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - key, err := crypto.GenerateKey() - if err != nil { - b.Fatalf("failed GenerateKey with seed %d: %s.", seed, err) - } - params.KeySym = nil - params.Dst = &key.PublicKey - - for i := 0; i < b.N; i++ { - msg, _ := NewSentMessage(params) - _, err := msg.Wrap(params) - if err != nil { - b.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - } -} - -func BenchmarkDecryptionSymValid(b *testing.B) { - InitSingleTest() - - params, err := generateMessageParams() - if err != nil { - b.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - msg, _ := NewSentMessage(params) - env, err := msg.Wrap(params) - if err != nil { - b.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - f := Filter{KeySym: params.KeySym} - - for i := 0; i < b.N; i++ { - msg := env.Open(&f) - if msg == nil { - b.Fatalf("failed to open with seed %d.", seed) - } - } -} - -func BenchmarkDecryptionSymInvalid(b *testing.B) { - InitSingleTest() - - params, err := generateMessageParams() - if err != nil { - b.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - msg, _ := NewSentMessage(params) - env, err := msg.Wrap(params) - if err != nil { - b.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - f := Filter{KeySym: []byte("arbitrary stuff here")} - - for i := 0; i < b.N; i++ { - msg := env.Open(&f) - if msg != nil { - b.Fatalf("opened envelope with invalid key, seed: %d.", seed) - } - } -} - -func BenchmarkDecryptionAsymValid(b *testing.B) { - InitSingleTest() - - params, err := generateMessageParams() - if err != nil { - b.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - key, err := crypto.GenerateKey() - if err != nil { - b.Fatalf("failed GenerateKey with seed %d: %s.", seed, err) - } - f := Filter{KeyAsym: key} - params.KeySym = nil - params.Dst = &key.PublicKey - msg, _ := NewSentMessage(params) - env, err := msg.Wrap(params) - if err != nil { - b.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - - for i := 0; i < b.N; i++ { - msg := env.Open(&f) - if msg == nil { - b.Fatalf("fail to open, seed: %d.", seed) - } - } -} - -func BenchmarkDecryptionAsymInvalid(b *testing.B) { - InitSingleTest() - - params, err := generateMessageParams() - if err != nil { - b.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - key, err := crypto.GenerateKey() - if err != nil { - b.Fatalf("failed GenerateKey with seed %d: %s.", seed, err) - } - params.KeySym = nil - params.Dst = &key.PublicKey - msg, _ := NewSentMessage(params) - env, err := msg.Wrap(params) - if err != nil { - b.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - - key, err = crypto.GenerateKey() - if err != nil { - b.Fatalf("failed GenerateKey with seed %d: %s.", seed, err) - } - f := Filter{KeyAsym: key} - - for i := 0; i < b.N; i++ { - msg := env.Open(&f) - if msg != nil { - b.Fatalf("opened envelope with invalid key, seed: %d.", seed) - } - } -} - -func increment(x []byte) { - for i := 0; i < len(x); i++ { - x[i]++ - if x[i] != 0 { - break - } - } -} - -func BenchmarkPoW(b *testing.B) { - InitSingleTest() - - params, err := generateMessageParams() - if err != nil { - b.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - params.Payload = make([]byte, 32) - params.PoW = 10.0 - params.TTL = 1 - - for i := 0; i < b.N; i++ { - increment(params.Payload) - msg, _ := NewSentMessage(params) - _, err := msg.Wrap(params) - if err != nil { - b.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - } -} diff --git a/whisper/whisperv6/config.go b/whisper/whisperv6/config.go deleted file mode 100644 index 38eb9551cc..0000000000 --- a/whisper/whisperv6/config.go +++ /dev/null @@ -1,31 +0,0 @@ -// 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 . - -package whisperv6 - -// Config represents the configuration state of a whisper node. -type Config struct { - MaxMessageSize uint32 `toml:",omitempty"` - MinimumAcceptedPOW float64 `toml:",omitempty"` - RestrictConnectionBetweenLightClients bool `toml:",omitempty"` -} - -// DefaultConfig represents (shocker!) the default configuration. -var DefaultConfig = Config{ - MaxMessageSize: DefaultMaxMessageSize, - MinimumAcceptedPOW: DefaultMinimumPoW, - RestrictConnectionBetweenLightClients: true, -} diff --git a/whisper/whisperv6/doc.go b/whisper/whisperv6/doc.go deleted file mode 100644 index 44c0c3271c..0000000000 --- a/whisper/whisperv6/doc.go +++ /dev/null @@ -1,92 +0,0 @@ -// Copyright 2016 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -/* -Package whisper implements the Whisper protocol (version 6). - -Whisper combines aspects of both DHTs and datagram messaging systems (e.g. UDP). -As such it may be likened and compared to both, not dissimilar to the -matter/energy duality (apologies to physicists for the blatant abuse of a -fundamental and beautiful natural principle). - -Whisper is a pure identity-based messaging system. Whisper provides a low-level -(non-application-specific) but easily-accessible API without being based upon -or prejudiced by the low-level hardware attributes and characteristics, -particularly the notion of singular endpoints. -*/ - -// Contains the Whisper protocol constant definitions - -package whisperv6 - -import ( - "time" - - "github.com/ethereum/go-ethereum/crypto" -) - -// Whisper protocol parameters -const ( - ProtocolVersion = uint64(6) // Protocol version number - ProtocolVersionStr = "6.0" // The same, as a string - ProtocolName = "shh" // Nickname of the protocol in geth - - // whisper protocol message codes, according to EIP-627 - statusCode = 0 // used by whisper protocol - messagesCode = 1 // normal whisper message - powRequirementCode = 2 // PoW requirement - bloomFilterExCode = 3 // bloom filter exchange - p2pRequestCode = 126 // peer-to-peer message, used by Dapp protocol - p2pMessageCode = 127 // peer-to-peer message (to be consumed by the peer, but not forwarded any further) - NumberOfMessageCodes = 128 - - SizeMask = byte(3) // mask used to extract the size of payload size field from the flags - signatureFlag = byte(4) - - TopicLength = 4 // in bytes - signatureLength = crypto.SignatureLength // in bytes - aesKeyLength = 32 // in bytes - aesNonceLength = 12 // in bytes; for more info please see cipher.gcmStandardNonceSize & aesgcm.NonceSize() - keyIDSize = 32 // in bytes - BloomFilterSize = 64 // in bytes - flagsLength = 1 - - EnvelopeHeaderLength = 20 - - MaxMessageSize = uint32(10 * 1024 * 1024) // maximum accepted size of a message. - DefaultMaxMessageSize = uint32(1024 * 1024) - DefaultMinimumPoW = 0.2 - - padSizeLimit = 256 // just an arbitrary number, could be changed without breaking the protocol - messageQueueLimit = 1024 - - expirationCycle = time.Second - transmissionCycle = 300 * time.Millisecond - - DefaultTTL = 50 // seconds - DefaultSyncAllowance = 10 // seconds -) - -// MailServer represents a mail server, capable of -// archiving the old messages for subsequent delivery -// to the peers. Any implementation must ensure that both -// functions are thread-safe. Also, they must return ASAP. -// DeliverMail should use directMessagesCode for delivery, -// in order to bypass the expiry checks. -type MailServer interface { - Archive(env *Envelope) - DeliverMail(whisperPeer *Peer, request *Envelope) -} diff --git a/whisper/whisperv6/envelope.go b/whisper/whisperv6/envelope.go deleted file mode 100644 index 5b6925edb3..0000000000 --- a/whisper/whisperv6/envelope.go +++ /dev/null @@ -1,280 +0,0 @@ -// Copyright 2016 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -// Contains the Whisper protocol Envelope element. - -package whisperv6 - -import ( - "crypto/ecdsa" - "encoding/binary" - "fmt" - gmath "math" - "math/big" - "time" - - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/crypto" - "github.com/ethereum/go-ethereum/crypto/ecies" - "github.com/ethereum/go-ethereum/rlp" -) - -// Envelope represents a clear-text data packet to transmit through the Whisper -// network. Its contents may or may not be encrypted and signed. -type Envelope struct { - Expiry uint32 - TTL uint32 - Topic TopicType - Data []byte - Nonce uint64 - - pow float64 // Message-specific PoW as described in the Whisper specification. - - // the following variables should not be accessed directly, use the corresponding function instead: Hash(), Bloom() - hash common.Hash // Cached hash of the envelope to avoid rehashing every time. - bloom []byte -} - -// size returns the size of envelope as it is sent (i.e. public fields only) -func (e *Envelope) size() int { - return EnvelopeHeaderLength + len(e.Data) -} - -// rlpWithoutNonce returns the RLP encoded envelope contents, except the nonce. -func (e *Envelope) rlpWithoutNonce() []byte { - res, _ := rlp.EncodeToBytes([]interface{}{e.Expiry, e.TTL, e.Topic, e.Data}) - return res -} - -// NewEnvelope wraps a Whisper message with expiration and destination data -// included into an envelope for network forwarding. -func NewEnvelope(ttl uint32, topic TopicType, msg *sentMessage) *Envelope { - env := Envelope{ - Expiry: uint32(time.Now().Add(time.Second * time.Duration(ttl)).Unix()), - TTL: ttl, - Topic: topic, - Data: msg.Raw, - Nonce: 0, - } - - return &env -} - -// Seal closes the envelope by spending the requested amount of time as a proof -// of work on hashing the data. -func (e *Envelope) Seal(options *MessageParams) error { - if options.PoW == 0 { - // PoW is not required - return nil - } - - var target, bestLeadingZeros int - if options.PoW < 0 { - // target is not set - the function should run for a period - // of time specified in WorkTime param. Since we can predict - // the execution time, we can also adjust Expiry. - e.Expiry += options.WorkTime - } else { - target = e.powToFirstBit(options.PoW) - } - - rlp := e.rlpWithoutNonce() - buf := make([]byte, len(rlp)+8) - copy(buf, rlp) - asAnInt := new(big.Int) - - finish := time.Now().Add(time.Duration(options.WorkTime) * time.Second).UnixNano() - for nonce := uint64(0); time.Now().UnixNano() < finish; { - for i := 0; i < 1024; i++ { - binary.BigEndian.PutUint64(buf[len(rlp):], nonce) - h := crypto.Keccak256(buf) - asAnInt.SetBytes(h) - leadingZeros := 256 - asAnInt.BitLen() - if leadingZeros > bestLeadingZeros { - e.Nonce, bestLeadingZeros = nonce, leadingZeros - if target > 0 && bestLeadingZeros >= target { - return nil - } - } - nonce++ - } - } - - if target > 0 && bestLeadingZeros < target { - return fmt.Errorf("failed to reach the PoW target, specified pow time (%d seconds) was insufficient", options.WorkTime) - } - - return nil -} - -// PoW computes (if necessary) and returns the proof of work target -// of the envelope. -func (e *Envelope) PoW() float64 { - if e.pow == 0 { - e.calculatePoW(0) - } - return e.pow -} - -func (e *Envelope) calculatePoW(diff uint32) { - rlp := e.rlpWithoutNonce() - buf := make([]byte, len(rlp)+8) - copy(buf, rlp) - binary.BigEndian.PutUint64(buf[len(rlp):], e.Nonce) - powHash := new(big.Int).SetBytes(crypto.Keccak256(buf)) - leadingZeroes := 256 - powHash.BitLen() - x := gmath.Pow(2, float64(leadingZeroes)) - x /= float64(len(rlp)) - x /= float64(e.TTL + diff) - e.pow = x -} - -func (e *Envelope) powToFirstBit(pow float64) int { - x := pow - x *= float64(e.size()) - x *= float64(e.TTL) - bits := gmath.Log2(x) - bits = gmath.Ceil(bits) - res := int(bits) - if res < 1 { - res = 1 - } - return res -} - -// Hash returns the SHA3 hash of the envelope, calculating it if not yet done. -func (e *Envelope) Hash() common.Hash { - if (e.hash == common.Hash{}) { - encoded, _ := rlp.EncodeToBytes(e) - e.hash = crypto.Keccak256Hash(encoded) - } - return e.hash -} - -// DecodeRLP decodes an Envelope from an RLP data stream. -func (e *Envelope) DecodeRLP(s *rlp.Stream) error { - raw, err := s.Raw() - if err != nil { - return err - } - // The decoding of Envelope uses the struct fields but also needs - // to compute the hash of the whole RLP-encoded envelope. This - // type has the same structure as Envelope but is not an - // rlp.Decoder (does not implement DecodeRLP function). - // Only public members will be encoded. - type rlpenv Envelope - if err := rlp.DecodeBytes(raw, (*rlpenv)(e)); err != nil { - return err - } - e.hash = crypto.Keccak256Hash(raw) - return nil -} - -// OpenAsymmetric tries to decrypt an envelope, potentially encrypted with a particular key. -func (e *Envelope) OpenAsymmetric(key *ecdsa.PrivateKey) (*ReceivedMessage, error) { - message := &ReceivedMessage{Raw: e.Data} - err := message.decryptAsymmetric(key) - switch err { - case nil: - return message, nil - case ecies.ErrInvalidPublicKey: // addressed to somebody else - return nil, err - default: - return nil, fmt.Errorf("unable to open envelope, decrypt failed: %v", err) - } -} - -// OpenSymmetric tries to decrypt an envelope, potentially encrypted with a particular key. -func (e *Envelope) OpenSymmetric(key []byte) (msg *ReceivedMessage, err error) { - msg = &ReceivedMessage{Raw: e.Data} - err = msg.decryptSymmetric(key) - if err != nil { - msg = nil - } - return msg, err -} - -// Open tries to decrypt an envelope, and populates the message fields in case of success. -func (e *Envelope) Open(watcher *Filter) (msg *ReceivedMessage) { - if watcher == nil { - return nil - } - - // The API interface forbids filters doing both symmetric and asymmetric encryption. - if watcher.expectsAsymmetricEncryption() && watcher.expectsSymmetricEncryption() { - return nil - } - - if watcher.expectsAsymmetricEncryption() { - msg, _ = e.OpenAsymmetric(watcher.KeyAsym) - if msg != nil { - msg.Dst = &watcher.KeyAsym.PublicKey - } - } else if watcher.expectsSymmetricEncryption() { - msg, _ = e.OpenSymmetric(watcher.KeySym) - if msg != nil { - msg.SymKeyHash = crypto.Keccak256Hash(watcher.KeySym) - } - } - - if msg != nil { - ok := msg.ValidateAndParse() - if !ok { - return nil - } - msg.Topic = e.Topic - msg.PoW = e.PoW() - msg.TTL = e.TTL - msg.Sent = e.Expiry - e.TTL - msg.EnvelopeHash = e.Hash() - } - return msg -} - -// Bloom maps 4-bytes Topic into 64-byte bloom filter with 3 bits set (at most). -func (e *Envelope) Bloom() []byte { - if e.bloom == nil { - e.bloom = TopicToBloom(e.Topic) - } - return e.bloom -} - -// TopicToBloom converts the topic (4 bytes) to the bloom filter (64 bytes) -func TopicToBloom(topic TopicType) []byte { - b := make([]byte, BloomFilterSize) - var index [3]int - for j := 0; j < 3; j++ { - index[j] = int(topic[j]) - if (topic[3] & (1 << uint(j))) != 0 { - index[j] += 256 - } - } - - for j := 0; j < 3; j++ { - byteIndex := index[j] / 8 - bitIndex := index[j] % 8 - b[byteIndex] = (1 << uint(bitIndex)) - } - return b -} - -// GetEnvelope retrieves an envelope from the message queue by its hash. -// It returns nil if the envelope can not be found. -func (w *Whisper) GetEnvelope(hash common.Hash) *Envelope { - w.poolMu.RLock() - defer w.poolMu.RUnlock() - return w.envelopes[hash] -} diff --git a/whisper/whisperv6/envelope_test.go b/whisper/whisperv6/envelope_test.go deleted file mode 100644 index c0bb4373b8..0000000000 --- a/whisper/whisperv6/envelope_test.go +++ /dev/null @@ -1,91 +0,0 @@ -// 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 . - -// Contains the tests associated with the Whisper protocol Envelope object. - -package whisperv6 - -import ( - mrand "math/rand" - "testing" - - "github.com/ethereum/go-ethereum/crypto" -) - -func TestPoWCalculationsWithNoLeadingZeros(t *testing.T) { - e := Envelope{ - TTL: 1, - Data: []byte{0xde, 0xad, 0xbe, 0xef}, - Nonce: 100000, - } - - e.calculatePoW(0) - - if e.pow != 0.07692307692307693 { - t.Fatalf("invalid PoW calculation. Expected 0.07692307692307693, got %v", e.pow) - } -} - -func TestPoWCalculationsWith8LeadingZeros(t *testing.T) { - e := Envelope{ - TTL: 1, - Data: []byte{0xde, 0xad, 0xbe, 0xef}, - Nonce: 276, - } - e.calculatePoW(0) - - if e.pow != 19.692307692307693 { - t.Fatalf("invalid PoW calculation. Expected 19.692307692307693, got %v", e.pow) - } -} - -func TestEnvelopeOpenAcceptsOnlyOneKeyTypeInFilter(t *testing.T) { - symKey := make([]byte, aesKeyLength) - mrand.Read(symKey) - - asymKey, err := crypto.GenerateKey() - if err != nil { - t.Fatalf("failed GenerateKey with seed %d: %s.", seed, err) - } - - params := MessageParams{ - PoW: 0.01, - WorkTime: 1, - TTL: uint32(mrand.Intn(1024)), - Payload: make([]byte, 50), - KeySym: symKey, - Dst: nil, - } - - mrand.Read(params.Payload) - - msg, err := NewSentMessage(¶ms) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - - e, err := msg.Wrap(¶ms) - if err != nil { - t.Fatalf("Failed to Wrap the message in an envelope with seed %d: %s", seed, err) - } - - f := Filter{KeySym: symKey, KeyAsym: asymKey} - - decrypted := e.Open(&f) - if decrypted != nil { - t.Fatalf("Managed to decrypt a message with an invalid filter, seed %d", seed) - } -} diff --git a/whisper/whisperv6/filter.go b/whisper/whisperv6/filter.go deleted file mode 100644 index 6a5b79674b..0000000000 --- a/whisper/whisperv6/filter.go +++ /dev/null @@ -1,262 +0,0 @@ -// Copyright 2016 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -package whisperv6 - -import ( - "crypto/ecdsa" - "fmt" - "sync" - - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/crypto" - "github.com/ethereum/go-ethereum/log" -) - -// Filter represents a Whisper message filter -type Filter struct { - Src *ecdsa.PublicKey // Sender of the message - KeyAsym *ecdsa.PrivateKey // Private Key of recipient - KeySym []byte // Key associated with the Topic - Topics [][]byte // Topics to filter messages with - PoW float64 // Proof of work as described in the Whisper spec - AllowP2P bool // Indicates whether this filter is interested in direct peer-to-peer messages - SymKeyHash common.Hash // The Keccak256Hash of the symmetric key, needed for optimization - id string // unique identifier - - Messages map[common.Hash]*ReceivedMessage - mutex sync.RWMutex -} - -// Filters represents a collection of filters -type Filters struct { - watchers map[string]*Filter - - topicMatcher map[TopicType]map[*Filter]struct{} // map a topic to the filters that are interested in being notified when a message matches that topic - allTopicsMatcher map[*Filter]struct{} // list all the filters that will be notified of a new message, no matter what its topic is - - whisper *Whisper - mutex sync.RWMutex -} - -// NewFilters returns a newly created filter collection -func NewFilters(w *Whisper) *Filters { - return &Filters{ - watchers: make(map[string]*Filter), - topicMatcher: make(map[TopicType]map[*Filter]struct{}), - allTopicsMatcher: make(map[*Filter]struct{}), - whisper: w, - } -} - -// Install will add a new filter to the filter collection -func (fs *Filters) Install(watcher *Filter) (string, error) { - if watcher.KeySym != nil && watcher.KeyAsym != nil { - return "", fmt.Errorf("filters must choose between symmetric and asymmetric keys") - } - - if watcher.Messages == nil { - watcher.Messages = make(map[common.Hash]*ReceivedMessage) - } - - id, err := GenerateRandomID() - if err != nil { - return "", err - } - - fs.mutex.Lock() - defer fs.mutex.Unlock() - - if fs.watchers[id] != nil { - return "", fmt.Errorf("failed to generate unique ID") - } - - if watcher.expectsSymmetricEncryption() { - watcher.SymKeyHash = crypto.Keccak256Hash(watcher.KeySym) - } - - watcher.id = id - fs.watchers[id] = watcher - fs.addTopicMatcher(watcher) - return id, err -} - -// Uninstall will remove a filter whose id has been specified from -// the filter collection -func (fs *Filters) Uninstall(id string) bool { - fs.mutex.Lock() - defer fs.mutex.Unlock() - if fs.watchers[id] != nil { - fs.removeFromTopicMatchers(fs.watchers[id]) - delete(fs.watchers, id) - return true - } - return false -} - -// addTopicMatcher adds a filter to the topic matchers. -// If the filter's Topics array is empty, it will be tried on every topic. -// Otherwise, it will be tried on the topics specified. -func (fs *Filters) addTopicMatcher(watcher *Filter) { - if len(watcher.Topics) == 0 { - fs.allTopicsMatcher[watcher] = struct{}{} - } else { - for _, t := range watcher.Topics { - topic := BytesToTopic(t) - if fs.topicMatcher[topic] == nil { - fs.topicMatcher[topic] = make(map[*Filter]struct{}) - } - fs.topicMatcher[topic][watcher] = struct{}{} - } - } -} - -// removeFromTopicMatchers removes a filter from the topic matchers -func (fs *Filters) removeFromTopicMatchers(watcher *Filter) { - delete(fs.allTopicsMatcher, watcher) - for _, topic := range watcher.Topics { - delete(fs.topicMatcher[BytesToTopic(topic)], watcher) - } -} - -// getWatchersByTopic returns a slice containing the filters that -// match a specific topic -func (fs *Filters) getWatchersByTopic(topic TopicType) []*Filter { - res := make([]*Filter, 0, len(fs.allTopicsMatcher)) - for watcher := range fs.allTopicsMatcher { - res = append(res, watcher) - } - for watcher := range fs.topicMatcher[topic] { - res = append(res, watcher) - } - return res -} - -// Get returns a filter from the collection with a specific ID -func (fs *Filters) Get(id string) *Filter { - fs.mutex.RLock() - defer fs.mutex.RUnlock() - return fs.watchers[id] -} - -// NotifyWatchers notifies any filter that has declared interest -// for the envelope's topic. -func (fs *Filters) NotifyWatchers(env *Envelope, p2pMessage bool) { - var msg *ReceivedMessage - - fs.mutex.RLock() - defer fs.mutex.RUnlock() - - candidates := fs.getWatchersByTopic(env.Topic) - for _, watcher := range candidates { - if p2pMessage && !watcher.AllowP2P { - log.Trace(fmt.Sprintf("msg [%x], filter [%s]: p2p messages are not allowed", env.Hash(), watcher.id)) - continue - } - - var match bool - if msg != nil { - match = watcher.MatchMessage(msg) - } else { - match = watcher.MatchEnvelope(env) - if match { - msg = env.Open(watcher) - if msg == nil { - log.Trace("processing message: failed to open", "message", env.Hash().Hex(), "filter", watcher.id) - } - } else { - log.Trace("processing message: does not match", "message", env.Hash().Hex(), "filter", watcher.id) - } - } - - if match && msg != nil { - log.Trace("processing message: decrypted", "hash", env.Hash().Hex()) - if watcher.Src == nil || IsPubKeyEqual(msg.Src, watcher.Src) { - watcher.Trigger(msg) - } - } - } -} - -func (f *Filter) expectsAsymmetricEncryption() bool { - return f.KeyAsym != nil -} - -func (f *Filter) expectsSymmetricEncryption() bool { - return f.KeySym != nil -} - -// Trigger adds a yet-unknown message to the filter's list of -// received messages. -func (f *Filter) Trigger(msg *ReceivedMessage) { - f.mutex.Lock() - defer f.mutex.Unlock() - - if _, exist := f.Messages[msg.EnvelopeHash]; !exist { - f.Messages[msg.EnvelopeHash] = msg - } -} - -// Retrieve will return the list of all received messages associated -// to a filter. -func (f *Filter) Retrieve() (all []*ReceivedMessage) { - f.mutex.Lock() - defer f.mutex.Unlock() - - all = make([]*ReceivedMessage, 0, len(f.Messages)) - for _, msg := range f.Messages { - all = append(all, msg) - } - - f.Messages = make(map[common.Hash]*ReceivedMessage) // delete old messages - return all -} - -// MatchMessage checks if the filter matches an already decrypted -// message (i.e. a Message that has already been handled by -// MatchEnvelope when checked by a previous filter). -// Topics are not checked here, since this is done by topic matchers. -func (f *Filter) MatchMessage(msg *ReceivedMessage) bool { - if f.PoW > 0 && msg.PoW < f.PoW { - return false - } - - if f.expectsAsymmetricEncryption() && msg.isAsymmetricEncryption() { - return IsPubKeyEqual(&f.KeyAsym.PublicKey, msg.Dst) - } else if f.expectsSymmetricEncryption() && msg.isSymmetricEncryption() { - return f.SymKeyHash == msg.SymKeyHash - } - return false -} - -// MatchEnvelope checks if it's worth decrypting the message. If -// it returns `true`, client code is expected to attempt decrypting -// the message and subsequently call MatchMessage. -// Topics are not checked here, since this is done by topic matchers. -func (f *Filter) MatchEnvelope(envelope *Envelope) bool { - return f.PoW <= 0 || envelope.pow >= f.PoW -} - -// IsPubKeyEqual checks that two public keys are equal -func IsPubKeyEqual(a, b *ecdsa.PublicKey) bool { - if !ValidatePublicKey(a) { - return false - } else if !ValidatePublicKey(b) { - return false - } - // the curve is always the same, just compare the points - return a.X.Cmp(b.X) == 0 && a.Y.Cmp(b.Y) == 0 -} diff --git a/whisper/whisperv6/filter_test.go b/whisper/whisperv6/filter_test.go deleted file mode 100644 index c95e506972..0000000000 --- a/whisper/whisperv6/filter_test.go +++ /dev/null @@ -1,836 +0,0 @@ -// Copyright 2016 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -package whisperv6 - -import ( - "math/big" - mrand "math/rand" - "testing" - "time" - - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/crypto" -) - -var seed int64 - -// InitSingleTest should be called in the beginning of every -// test, which uses RNG, in order to make the tests -// reproduciblity independent of their sequence. -func InitSingleTest() { - seed = time.Now().Unix() - mrand.Seed(seed) -} - -type FilterTestCase struct { - f *Filter - id string - alive bool - msgCnt int -} - -func generateFilter(t *testing.T, symmetric bool) (*Filter, error) { - var f Filter - f.Messages = make(map[common.Hash]*ReceivedMessage) - - const topicNum = 8 - f.Topics = make([][]byte, topicNum) - for i := 0; i < topicNum; i++ { - f.Topics[i] = make([]byte, 4) - mrand.Read(f.Topics[i]) - f.Topics[i][0] = 0x01 - } - - key, err := crypto.GenerateKey() - if err != nil { - t.Fatalf("generateFilter 1 failed with seed %d.", seed) - return nil, err - } - f.Src = &key.PublicKey - - if symmetric { - f.KeySym = make([]byte, aesKeyLength) - mrand.Read(f.KeySym) - f.SymKeyHash = crypto.Keccak256Hash(f.KeySym) - } else { - f.KeyAsym, err = crypto.GenerateKey() - if err != nil { - t.Fatalf("generateFilter 2 failed with seed %d.", seed) - return nil, err - } - } - - // AcceptP2P & PoW are not set - return &f, nil -} - -func generateTestCases(t *testing.T, SizeTestFilters int) []FilterTestCase { - cases := make([]FilterTestCase, SizeTestFilters) - for i := 0; i < SizeTestFilters; i++ { - f, _ := generateFilter(t, true) - cases[i].f = f - cases[i].alive = mrand.Int()&int(1) == 0 - } - return cases -} - -func TestInstallFilters(t *testing.T) { - InitSingleTest() - - const SizeTestFilters = 256 - - stack, w := newNodeWithWhisper(t) - defer stack.Close() - - filters := NewFilters(w) - tst := generateTestCases(t, SizeTestFilters) - - var err error - var j string - for i := 0; i < SizeTestFilters; i++ { - j, err = filters.Install(tst[i].f) - if err != nil { - t.Fatalf("seed %d: failed to install filter: %s", seed, err) - } - tst[i].id = j - if len(j) != keyIDSize*2 { - t.Fatalf("seed %d: wrong filter id size [%d]", seed, len(j)) - } - } - - for _, testCase := range tst { - if !testCase.alive { - filters.Uninstall(testCase.id) - } - } - - for i, testCase := range tst { - fil := filters.Get(testCase.id) - exist := fil != nil - if exist != testCase.alive { - t.Fatalf("seed %d: failed alive: %d, %v, %v", seed, i, exist, testCase.alive) - } - if exist && fil.PoW != testCase.f.PoW { - t.Fatalf("seed %d: failed Get: %d, %v, %v", seed, i, exist, testCase.alive) - } - } -} - -func TestInstallSymKeyGeneratesHash(t *testing.T) { - InitSingleTest() - - stack, w := newNodeWithWhisper(t) - defer stack.Close() - - filters := NewFilters(w) - filter, _ := generateFilter(t, true) - - // save the current SymKeyHash for comparison - initialSymKeyHash := filter.SymKeyHash - - // ensure the SymKeyHash is invalid, for Install to recreate it - var invalid common.Hash - filter.SymKeyHash = invalid - - _, err := filters.Install(filter) - - if err != nil { - t.Fatalf("Error installing the filter: %s", err) - } - - for i, b := range filter.SymKeyHash { - if b != initialSymKeyHash[i] { - t.Fatalf("The filter's symmetric key hash was not properly generated by Install") - } - } -} - -func TestInstallIdenticalFilters(t *testing.T) { - InitSingleTest() - - stack, w := newNodeWithWhisper(t) - defer stack.Close() - - filters := NewFilters(w) - filter1, _ := generateFilter(t, true) - - // Copy the first filter since some of its fields - // are randomly gnerated. - filter2 := &Filter{ - KeySym: filter1.KeySym, - Topics: filter1.Topics, - PoW: filter1.PoW, - AllowP2P: filter1.AllowP2P, - Messages: make(map[common.Hash]*ReceivedMessage), - } - - _, err := filters.Install(filter1) - - if err != nil { - t.Fatalf("Error installing the first filter with seed %d: %s", seed, err) - } - - _, err = filters.Install(filter2) - - if err != nil { - t.Fatalf("Error installing the second filter with seed %d: %s", seed, err) - } - - params, err := generateMessageParams() - if err != nil { - t.Fatalf("Error generating message parameters with seed %d: %s", seed, err) - } - - params.KeySym = filter1.KeySym - params.Topic = BytesToTopic(filter1.Topics[0]) - - filter1.Src = ¶ms.Src.PublicKey - filter2.Src = ¶ms.Src.PublicKey - - sentMessage, err := NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - env, err := sentMessage.Wrap(params) - if err != nil { - t.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - msg := env.Open(filter1) - if msg == nil { - t.Fatalf("failed to Open with filter1") - } - - if !filter1.MatchEnvelope(env) { - t.Fatalf("failed matching with the first filter") - } - - if !filter2.MatchEnvelope(env) { - t.Fatalf("failed matching with the first filter") - } - - if !filter1.MatchMessage(msg) { - t.Fatalf("failed matching with the second filter") - } - - if !filter2.MatchMessage(msg) { - t.Fatalf("failed matching with the second filter") - } -} - -func TestInstallFilterWithSymAndAsymKeys(t *testing.T) { - InitSingleTest() - - stack, w := newNodeWithWhisper(t) - defer stack.Close() - - filters := NewFilters(w) - filter1, _ := generateFilter(t, true) - - asymKey, err := crypto.GenerateKey() - if err != nil { - t.Fatalf("Unable to create asymetric keys: %v", err) - } - - // Copy the first filter since some of its fields - // are randomly gnerated. - filter := &Filter{ - KeySym: filter1.KeySym, - KeyAsym: asymKey, - Topics: filter1.Topics, - PoW: filter1.PoW, - AllowP2P: filter1.AllowP2P, - Messages: make(map[common.Hash]*ReceivedMessage), - } - - _, err = filters.Install(filter) - - if err == nil { - t.Fatalf("Error detecting that a filter had both an asymmetric and symmetric key, with seed %d", seed) - } -} - -func TestComparePubKey(t *testing.T) { - InitSingleTest() - - key1, err := crypto.GenerateKey() - if err != nil { - t.Fatalf("failed to generate first key with seed %d: %s.", seed, err) - } - key2, err := crypto.GenerateKey() - if err != nil { - t.Fatalf("failed to generate second key with seed %d: %s.", seed, err) - } - if IsPubKeyEqual(&key1.PublicKey, &key2.PublicKey) { - t.Fatalf("public keys are equal, seed %d.", seed) - } - - // generate key3 == key1 - mrand.Seed(seed) - key3, err := crypto.GenerateKey() - if err != nil { - t.Fatalf("failed to generate third key with seed %d: %s.", seed, err) - } - if IsPubKeyEqual(&key1.PublicKey, &key3.PublicKey) { - t.Fatalf("key1 == key3, seed %d.", seed) - } -} - -func TestMatchEnvelope(t *testing.T) { - InitSingleTest() - - fsym, err := generateFilter(t, true) - if err != nil { - t.Fatalf("failed generateFilter with seed %d: %s.", seed, err) - } - - fasym, err := generateFilter(t, false) - if err != nil { - t.Fatalf("failed generateFilter() with seed %d: %s.", seed, err) - } - - params, err := generateMessageParams() - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - - params.Topic[0] = 0xFF // topic mismatch - - msg, err := NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - if _, err = msg.Wrap(params); err != nil { - t.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - - // encrypt symmetrically - i := mrand.Int() % 4 - fsym.Topics[i] = params.Topic[:] - fasym.Topics[i] = params.Topic[:] - msg, err = NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - env, err := msg.Wrap(params) - if err != nil { - t.Fatalf("failed Wrap() with seed %d: %s.", seed, err) - } - - // symmetric + matching topic: match - match := fsym.MatchEnvelope(env) - if !match { - t.Fatalf("failed MatchEnvelope() symmetric with seed %d.", seed) - } - - // symmetric + matching topic + insufficient PoW: mismatch - fsym.PoW = env.PoW() + 1.0 - match = fsym.MatchEnvelope(env) - if match { - t.Fatalf("failed MatchEnvelope(symmetric + matching topic + insufficient PoW) asymmetric with seed %d.", seed) - } - - // symmetric + matching topic + sufficient PoW: match - fsym.PoW = env.PoW() / 2 - match = fsym.MatchEnvelope(env) - if !match { - t.Fatalf("failed MatchEnvelope(symmetric + matching topic + sufficient PoW) with seed %d.", seed) - } - - // symmetric + topics are nil (wildcard): match - prevTopics := fsym.Topics - fsym.Topics = nil - match = fsym.MatchEnvelope(env) - if !match { - t.Fatalf("failed MatchEnvelope(symmetric + topics are nil) with seed %d.", seed) - } - fsym.Topics = prevTopics - - // encrypt asymmetrically - key, err := crypto.GenerateKey() - if err != nil { - t.Fatalf("failed GenerateKey with seed %d: %s.", seed, err) - } - params.KeySym = nil - params.Dst = &key.PublicKey - msg, err = NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - env, err = msg.Wrap(params) - if err != nil { - t.Fatalf("failed Wrap() with seed %d: %s.", seed, err) - } - - // encryption method mismatch - match = fsym.MatchEnvelope(env) - if match { - t.Fatalf("failed MatchEnvelope(encryption method mismatch) with seed %d.", seed) - } - - // asymmetric + mismatching topic: mismatch - match = fasym.MatchEnvelope(env) - if !match { - t.Fatalf("failed MatchEnvelope(asymmetric + mismatching topic) with seed %d.", seed) - } - - // asymmetric + matching topic: match - fasym.Topics[i] = fasym.Topics[i+1] - match = fasym.MatchEnvelope(env) - if !match { - t.Fatalf("failed MatchEnvelope(asymmetric + matching topic) with seed %d.", seed) - } - - // asymmetric + filter without topic (wildcard): match - fasym.Topics = nil - match = fasym.MatchEnvelope(env) - if !match { - t.Fatalf("failed MatchEnvelope(asymmetric + filter without topic) with seed %d.", seed) - } - - // asymmetric + insufficient PoW: mismatch - fasym.PoW = env.PoW() + 1.0 - match = fasym.MatchEnvelope(env) - if match { - t.Fatalf("failed MatchEnvelope(asymmetric + insufficient PoW) with seed %d.", seed) - } - - // asymmetric + sufficient PoW: match - fasym.PoW = env.PoW() / 2 - match = fasym.MatchEnvelope(env) - if !match { - t.Fatalf("failed MatchEnvelope(asymmetric + sufficient PoW) with seed %d.", seed) - } - - // filter without topic + envelope without topic: match - env.Topic = TopicType{} - match = fasym.MatchEnvelope(env) - if !match { - t.Fatalf("failed MatchEnvelope(filter without topic + envelope without topic) with seed %d.", seed) - } - - // filter with topic + envelope without topic: mismatch - fasym.Topics = fsym.Topics - match = fasym.MatchEnvelope(env) - if !match { - // topic mismatch should have no affect, as topics are handled by topic matchers - t.Fatalf("failed MatchEnvelope(filter without topic + envelope without topic) with seed %d.", seed) - } -} - -func TestMatchMessageSym(t *testing.T) { - InitSingleTest() - - params, err := generateMessageParams() - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - - f, err := generateFilter(t, true) - if err != nil { - t.Fatalf("failed generateFilter with seed %d: %s.", seed, err) - } - - const index = 1 - params.KeySym = f.KeySym - params.Topic = BytesToTopic(f.Topics[index]) - - sentMessage, err := NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - env, err := sentMessage.Wrap(params) - if err != nil { - t.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - msg := env.Open(f) - if msg == nil { - t.Fatalf("failed Open with seed %d.", seed) - } - - // Src: match - *f.Src.X = *params.Src.PublicKey.X - *f.Src.Y = *params.Src.PublicKey.Y - if !f.MatchMessage(msg) { - t.Fatalf("failed MatchEnvelope(src match) with seed %d.", seed) - } - - // insufficient PoW: mismatch - f.PoW = msg.PoW + 1.0 - if f.MatchMessage(msg) { - t.Fatalf("failed MatchEnvelope(insufficient PoW) with seed %d.", seed) - } - - // sufficient PoW: match - f.PoW = msg.PoW / 2 - if !f.MatchMessage(msg) { - t.Fatalf("failed MatchEnvelope(sufficient PoW) with seed %d.", seed) - } - - // topic mismatch - f.Topics[index][0]++ - if !f.MatchMessage(msg) { - // topic mismatch should have no affect, as topics are handled by topic matchers - t.Fatalf("failed MatchEnvelope(topic mismatch) with seed %d.", seed) - } - f.Topics[index][0]-- - - // key mismatch - f.SymKeyHash[0]++ - if f.MatchMessage(msg) { - t.Fatalf("failed MatchEnvelope(key mismatch) with seed %d.", seed) - } - f.SymKeyHash[0]-- - - // Src absent: match - f.Src = nil - if !f.MatchMessage(msg) { - t.Fatalf("failed MatchEnvelope(src absent) with seed %d.", seed) - } - - // key hash mismatch - h := f.SymKeyHash - f.SymKeyHash = common.Hash{} - if f.MatchMessage(msg) { - t.Fatalf("failed MatchEnvelope(key hash mismatch) with seed %d.", seed) - } - f.SymKeyHash = h - if !f.MatchMessage(msg) { - t.Fatalf("failed MatchEnvelope(key hash match) with seed %d.", seed) - } - - // encryption method mismatch - f.KeySym = nil - f.KeyAsym, err = crypto.GenerateKey() - if err != nil { - t.Fatalf("failed GenerateKey with seed %d: %s.", seed, err) - } - if f.MatchMessage(msg) { - t.Fatalf("failed MatchEnvelope(encryption method mismatch) with seed %d.", seed) - } -} - -func TestMatchMessageAsym(t *testing.T) { - InitSingleTest() - - f, err := generateFilter(t, false) - if err != nil { - t.Fatalf("failed generateFilter with seed %d: %s.", seed, err) - } - - params, err := generateMessageParams() - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - - const index = 1 - params.Topic = BytesToTopic(f.Topics[index]) - params.Dst = &f.KeyAsym.PublicKey - keySymOrig := params.KeySym - params.KeySym = nil - - sentMessage, err := NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - env, err := sentMessage.Wrap(params) - if err != nil { - t.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - msg := env.Open(f) - if msg == nil { - t.Fatalf("failed to open with seed %d.", seed) - } - - // Src: match - *f.Src.X = *params.Src.PublicKey.X - *f.Src.Y = *params.Src.PublicKey.Y - if !f.MatchMessage(msg) { - t.Fatalf("failed MatchMessage(src match) with seed %d.", seed) - } - - // insufficient PoW: mismatch - f.PoW = msg.PoW + 1.0 - if f.MatchMessage(msg) { - t.Fatalf("failed MatchEnvelope(insufficient PoW) with seed %d.", seed) - } - - // sufficient PoW: match - f.PoW = msg.PoW / 2 - if !f.MatchMessage(msg) { - t.Fatalf("failed MatchEnvelope(sufficient PoW) with seed %d.", seed) - } - - // topic mismatch - f.Topics[index][0]++ - if !f.MatchMessage(msg) { - // topic mismatch should have no affect, as topics are handled by topic matchers - t.Fatalf("failed MatchEnvelope(topic mismatch) with seed %d.", seed) - } - f.Topics[index][0]-- - - // key mismatch - prev := *f.KeyAsym.PublicKey.X - zero := *big.NewInt(0) - *f.KeyAsym.PublicKey.X = zero - if f.MatchMessage(msg) { - t.Fatalf("failed MatchEnvelope(key mismatch) with seed %d.", seed) - } - *f.KeyAsym.PublicKey.X = prev - - // Src absent: match - f.Src = nil - if !f.MatchMessage(msg) { - t.Fatalf("failed MatchEnvelope(src absent) with seed %d.", seed) - } - - // encryption method mismatch - f.KeySym = keySymOrig - f.KeyAsym = nil - if f.MatchMessage(msg) { - t.Fatalf("failed MatchEnvelope(encryption method mismatch) with seed %d.", seed) - } -} - -func cloneFilter(orig *Filter) *Filter { - var clone Filter - clone.Messages = make(map[common.Hash]*ReceivedMessage) - clone.Src = orig.Src - clone.KeyAsym = orig.KeyAsym - clone.KeySym = orig.KeySym - clone.Topics = orig.Topics - clone.PoW = orig.PoW - clone.AllowP2P = orig.AllowP2P - clone.SymKeyHash = orig.SymKeyHash - return &clone -} - -func generateCompatibeEnvelope(t *testing.T, f *Filter) *Envelope { - params, err := generateMessageParams() - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - return nil - } - - params.KeySym = f.KeySym - params.Topic = BytesToTopic(f.Topics[2]) - sentMessage, err := NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - env, err := sentMessage.Wrap(params) - if err != nil { - t.Fatalf("failed Wrap with seed %d: %s.", seed, err) - return nil - } - return env -} - -func TestWatchers(t *testing.T) { - InitSingleTest() - - const NumFilters = 16 - const NumMessages = 256 - var i int - var j uint32 - var e *Envelope - var x, firstID string - var err error - - stack, w := newNodeWithWhisper(t) - defer stack.Close() - - filters := NewFilters(w) - tst := generateTestCases(t, NumFilters) - for i = 0; i < NumFilters; i++ { - tst[i].f.Src = nil - x, err = filters.Install(tst[i].f) - if err != nil { - t.Fatalf("failed to install filter with seed %d: %s.", seed, err) - } - tst[i].id = x - if len(firstID) == 0 { - firstID = x - } - } - - lastID := x - - var envelopes [NumMessages]*Envelope - for i = 0; i < NumMessages; i++ { - j = mrand.Uint32() % NumFilters - e = generateCompatibeEnvelope(t, tst[j].f) - envelopes[i] = e - tst[j].msgCnt++ - } - - for i = 0; i < NumMessages; i++ { - filters.NotifyWatchers(envelopes[i], false) - } - - var total int - var mail []*ReceivedMessage - var count [NumFilters]int - - for i = 0; i < NumFilters; i++ { - mail = tst[i].f.Retrieve() - count[i] = len(mail) - total += len(mail) - } - - if total != NumMessages { - t.Fatalf("failed with seed %d: total = %d, want: %d.", seed, total, NumMessages) - } - - for i = 0; i < NumFilters; i++ { - mail = tst[i].f.Retrieve() - if len(mail) != 0 { - t.Fatalf("failed with seed %d: i = %d.", seed, i) - } - - if tst[i].msgCnt != count[i] { - t.Fatalf("failed with seed %d: count[%d]: get %d, want %d.", seed, i, tst[i].msgCnt, count[i]) - } - } - - // another round with a cloned filter - - clone := cloneFilter(tst[0].f) - filters.Uninstall(lastID) - total = 0 - last := NumFilters - 1 - tst[last].f = clone - filters.Install(clone) - for i = 0; i < NumFilters; i++ { - tst[i].msgCnt = 0 - count[i] = 0 - } - - // make sure that the first watcher receives at least one message - e = generateCompatibeEnvelope(t, tst[0].f) - envelopes[0] = e - tst[0].msgCnt++ - for i = 1; i < NumMessages; i++ { - j = mrand.Uint32() % NumFilters - e = generateCompatibeEnvelope(t, tst[j].f) - envelopes[i] = e - tst[j].msgCnt++ - } - - for i = 0; i < NumMessages; i++ { - filters.NotifyWatchers(envelopes[i], false) - } - - for i = 0; i < NumFilters; i++ { - mail = tst[i].f.Retrieve() - count[i] = len(mail) - total += len(mail) - } - - combined := tst[0].msgCnt + tst[last].msgCnt - if total != NumMessages+count[0] { - t.Fatalf("failed with seed %d: total = %d, count[0] = %d.", seed, total, count[0]) - } - - if combined != count[0] { - t.Fatalf("failed with seed %d: combined = %d, count[0] = %d.", seed, combined, count[0]) - } - - if combined != count[last] { - t.Fatalf("failed with seed %d: combined = %d, count[last] = %d.", seed, combined, count[last]) - } - - for i = 1; i < NumFilters-1; i++ { - mail = tst[i].f.Retrieve() - if len(mail) != 0 { - t.Fatalf("failed with seed %d: i = %d.", seed, i) - } - - if tst[i].msgCnt != count[i] { - t.Fatalf("failed with seed %d: i = %d, get %d, want %d.", seed, i, tst[i].msgCnt, count[i]) - } - } - - // test AcceptP2P - - total = 0 - filters.NotifyWatchers(envelopes[0], true) - - for i = 0; i < NumFilters; i++ { - mail = tst[i].f.Retrieve() - total += len(mail) - } - - if total != 0 { - t.Fatalf("failed with seed %d: total: got %d, want 0.", seed, total) - } - - f := filters.Get(firstID) - if f == nil { - t.Fatalf("failed to get the filter with seed %d.", seed) - } - f.AllowP2P = true - total = 0 - filters.NotifyWatchers(envelopes[0], true) - - for i = 0; i < NumFilters; i++ { - mail = tst[i].f.Retrieve() - total += len(mail) - } - - if total != 1 { - t.Fatalf("failed with seed %d: total: got %d, want 1.", seed, total) - } -} - -func TestVariableTopics(t *testing.T) { - InitSingleTest() - - const lastTopicByte = 3 - var match bool - params, err := generateMessageParams() - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - msg, err := NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - env, err := msg.Wrap(params) - if err != nil { - t.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - - f, err := generateFilter(t, true) - if err != nil { - t.Fatalf("failed generateFilter with seed %d: %s.", seed, err) - } - - for i := 0; i < 4; i++ { - env.Topic = BytesToTopic(f.Topics[i]) - match = f.MatchEnvelope(env) - if !match { - t.Fatalf("failed MatchEnvelope symmetric with seed %d, step %d.", seed, i) - } - - f.Topics[i][lastTopicByte]++ - match = f.MatchEnvelope(env) - if !match { - // topic mismatch should have no affect, as topics are handled by topic matchers - t.Fatalf("MatchEnvelope symmetric with seed %d, step %d.", seed, i) - } - } -} diff --git a/whisper/whisperv6/gen_criteria_json.go b/whisper/whisperv6/gen_criteria_json.go deleted file mode 100644 index 1a428d6df7..0000000000 --- a/whisper/whisperv6/gen_criteria_json.go +++ /dev/null @@ -1,66 +0,0 @@ -// Code generated by github.com/fjl/gencodec. DO NOT EDIT. - -package whisperv6 - -import ( - "encoding/json" - - "github.com/ethereum/go-ethereum/common/hexutil" -) - -var _ = (*criteriaOverride)(nil) - -// MarshalJSON marshals type Criteria to a json string -func (c Criteria) MarshalJSON() ([]byte, error) { - type Criteria struct { - SymKeyID string `json:"symKeyID"` - PrivateKeyID string `json:"privateKeyID"` - Sig hexutil.Bytes `json:"sig"` - MinPow float64 `json:"minPow"` - Topics []TopicType `json:"topics"` - AllowP2P bool `json:"allowP2P"` - } - var enc Criteria - enc.SymKeyID = c.SymKeyID - enc.PrivateKeyID = c.PrivateKeyID - enc.Sig = c.Sig - enc.MinPow = c.MinPow - enc.Topics = c.Topics - enc.AllowP2P = c.AllowP2P - return json.Marshal(&enc) -} - -// UnmarshalJSON unmarshals type Criteria to a json string -func (c *Criteria) UnmarshalJSON(input []byte) error { - type Criteria struct { - SymKeyID *string `json:"symKeyID"` - PrivateKeyID *string `json:"privateKeyID"` - Sig *hexutil.Bytes `json:"sig"` - MinPow *float64 `json:"minPow"` - Topics []TopicType `json:"topics"` - AllowP2P *bool `json:"allowP2P"` - } - var dec Criteria - if err := json.Unmarshal(input, &dec); err != nil { - return err - } - if dec.SymKeyID != nil { - c.SymKeyID = *dec.SymKeyID - } - if dec.PrivateKeyID != nil { - c.PrivateKeyID = *dec.PrivateKeyID - } - if dec.Sig != nil { - c.Sig = *dec.Sig - } - if dec.MinPow != nil { - c.MinPow = *dec.MinPow - } - if dec.Topics != nil { - c.Topics = dec.Topics - } - if dec.AllowP2P != nil { - c.AllowP2P = *dec.AllowP2P - } - return nil -} diff --git a/whisper/whisperv6/gen_message_json.go b/whisper/whisperv6/gen_message_json.go deleted file mode 100644 index 6218f5df6e..0000000000 --- a/whisper/whisperv6/gen_message_json.go +++ /dev/null @@ -1,84 +0,0 @@ -// Code generated by github.com/fjl/gencodec. DO NOT EDIT. - -package whisperv6 - -import ( - "encoding/json" - - "github.com/ethereum/go-ethereum/common/hexutil" -) - -var _ = (*messageOverride)(nil) - -// MarshalJSON marshals type Message to a json string -func (m Message) MarshalJSON() ([]byte, error) { - type Message struct { - Sig hexutil.Bytes `json:"sig,omitempty"` - TTL uint32 `json:"ttl"` - Timestamp uint32 `json:"timestamp"` - Topic TopicType `json:"topic"` - Payload hexutil.Bytes `json:"payload"` - Padding hexutil.Bytes `json:"padding"` - PoW float64 `json:"pow"` - Hash hexutil.Bytes `json:"hash"` - Dst hexutil.Bytes `json:"recipientPublicKey,omitempty"` - } - var enc Message - enc.Sig = m.Sig - enc.TTL = m.TTL - enc.Timestamp = m.Timestamp - enc.Topic = m.Topic - enc.Payload = m.Payload - enc.Padding = m.Padding - enc.PoW = m.PoW - enc.Hash = m.Hash - enc.Dst = m.Dst - return json.Marshal(&enc) -} - -// UnmarshalJSON unmarshals type Message to a json string -func (m *Message) UnmarshalJSON(input []byte) error { - type Message struct { - Sig *hexutil.Bytes `json:"sig,omitempty"` - TTL *uint32 `json:"ttl"` - Timestamp *uint32 `json:"timestamp"` - Topic *TopicType `json:"topic"` - Payload *hexutil.Bytes `json:"payload"` - Padding *hexutil.Bytes `json:"padding"` - PoW *float64 `json:"pow"` - Hash *hexutil.Bytes `json:"hash"` - Dst *hexutil.Bytes `json:"recipientPublicKey,omitempty"` - } - var dec Message - if err := json.Unmarshal(input, &dec); err != nil { - return err - } - if dec.Sig != nil { - m.Sig = *dec.Sig - } - if dec.TTL != nil { - m.TTL = *dec.TTL - } - if dec.Timestamp != nil { - m.Timestamp = *dec.Timestamp - } - if dec.Topic != nil { - m.Topic = *dec.Topic - } - if dec.Payload != nil { - m.Payload = *dec.Payload - } - if dec.Padding != nil { - m.Padding = *dec.Padding - } - if dec.PoW != nil { - m.PoW = *dec.PoW - } - if dec.Hash != nil { - m.Hash = *dec.Hash - } - if dec.Dst != nil { - m.Dst = *dec.Dst - } - return nil -} diff --git a/whisper/whisperv6/gen_newmessage_json.go b/whisper/whisperv6/gen_newmessage_json.go deleted file mode 100644 index 75a1279ae3..0000000000 --- a/whisper/whisperv6/gen_newmessage_json.go +++ /dev/null @@ -1,90 +0,0 @@ -// Code generated by github.com/fjl/gencodec. DO NOT EDIT. - -package whisperv6 - -import ( - "encoding/json" - - "github.com/ethereum/go-ethereum/common/hexutil" -) - -var _ = (*newMessageOverride)(nil) - -// MarshalJSON marshals type NewMessage to a json string -func (n NewMessage) MarshalJSON() ([]byte, error) { - type NewMessage struct { - SymKeyID string `json:"symKeyID"` - PublicKey hexutil.Bytes `json:"pubKey"` - Sig string `json:"sig"` - TTL uint32 `json:"ttl"` - Topic TopicType `json:"topic"` - Payload hexutil.Bytes `json:"payload"` - Padding hexutil.Bytes `json:"padding"` - PowTime uint32 `json:"powTime"` - PowTarget float64 `json:"powTarget"` - TargetPeer string `json:"targetPeer"` - } - var enc NewMessage - enc.SymKeyID = n.SymKeyID - enc.PublicKey = n.PublicKey - enc.Sig = n.Sig - enc.TTL = n.TTL - enc.Topic = n.Topic - enc.Payload = n.Payload - enc.Padding = n.Padding - enc.PowTime = n.PowTime - enc.PowTarget = n.PowTarget - enc.TargetPeer = n.TargetPeer - return json.Marshal(&enc) -} - -// UnmarshalJSON unmarshals type NewMessage to a json string -func (n *NewMessage) UnmarshalJSON(input []byte) error { - type NewMessage struct { - SymKeyID *string `json:"symKeyID"` - PublicKey *hexutil.Bytes `json:"pubKey"` - Sig *string `json:"sig"` - TTL *uint32 `json:"ttl"` - Topic *TopicType `json:"topic"` - Payload *hexutil.Bytes `json:"payload"` - Padding *hexutil.Bytes `json:"padding"` - PowTime *uint32 `json:"powTime"` - PowTarget *float64 `json:"powTarget"` - TargetPeer *string `json:"targetPeer"` - } - var dec NewMessage - if err := json.Unmarshal(input, &dec); err != nil { - return err - } - if dec.SymKeyID != nil { - n.SymKeyID = *dec.SymKeyID - } - if dec.PublicKey != nil { - n.PublicKey = *dec.PublicKey - } - if dec.Sig != nil { - n.Sig = *dec.Sig - } - if dec.TTL != nil { - n.TTL = *dec.TTL - } - if dec.Topic != nil { - n.Topic = *dec.Topic - } - if dec.Payload != nil { - n.Payload = *dec.Payload - } - if dec.Padding != nil { - n.Padding = *dec.Padding - } - if dec.PowTime != nil { - n.PowTime = *dec.PowTime - } - if dec.PowTarget != nil { - n.PowTarget = *dec.PowTarget - } - if dec.TargetPeer != nil { - n.TargetPeer = *dec.TargetPeer - } - return nil -} diff --git a/whisper/whisperv6/message.go b/whisper/whisperv6/message.go deleted file mode 100644 index 2d4e862441..0000000000 --- a/whisper/whisperv6/message.go +++ /dev/null @@ -1,355 +0,0 @@ -// Copyright 2016 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -// Contains the Whisper protocol Message element. - -package whisperv6 - -import ( - "crypto/aes" - "crypto/cipher" - "crypto/ecdsa" - crand "crypto/rand" - "encoding/binary" - "errors" - mrand "math/rand" - "strconv" - - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/crypto" - "github.com/ethereum/go-ethereum/crypto/ecies" - "github.com/ethereum/go-ethereum/log" -) - -// MessageParams specifies the exact way a message should be wrapped -// into an Envelope. -type MessageParams struct { - TTL uint32 - Src *ecdsa.PrivateKey - Dst *ecdsa.PublicKey - KeySym []byte - Topic TopicType - WorkTime uint32 - PoW float64 - Payload []byte - Padding []byte -} - -// SentMessage represents an end-user data packet to transmit through the -// Whisper protocol. These are wrapped into Envelopes that need not be -// understood by intermediate nodes, just forwarded. -type sentMessage struct { - Raw []byte -} - -// ReceivedMessage represents a data packet to be received through the -// Whisper protocol and successfully decrypted. -type ReceivedMessage struct { - Raw []byte - - Payload []byte - Padding []byte - Signature []byte - Salt []byte - - PoW float64 // Proof of work as described in the Whisper spec - Sent uint32 // Time when the message was posted into the network - TTL uint32 // Maximum time to live allowed for the message - Src *ecdsa.PublicKey // Message recipient (identity used to decode the message) - Dst *ecdsa.PublicKey // Message recipient (identity used to decode the message) - Topic TopicType - - SymKeyHash common.Hash // The Keccak256Hash of the key - EnvelopeHash common.Hash // Message envelope hash to act as a unique id -} - -func isMessageSigned(flags byte) bool { - return (flags & signatureFlag) != 0 -} - -func (msg *ReceivedMessage) isSymmetricEncryption() bool { - return msg.SymKeyHash != common.Hash{} -} - -func (msg *ReceivedMessage) isAsymmetricEncryption() bool { - return msg.Dst != nil -} - -// NewSentMessage creates and initializes a non-signed, non-encrypted Whisper message. -func NewSentMessage(params *MessageParams) (*sentMessage, error) { - const payloadSizeFieldMaxSize = 4 - msg := sentMessage{} - msg.Raw = make([]byte, 1, - flagsLength+payloadSizeFieldMaxSize+len(params.Payload)+len(params.Padding)+signatureLength+padSizeLimit) - msg.Raw[0] = 0 // set all the flags to zero - msg.addPayloadSizeField(params.Payload) - msg.Raw = append(msg.Raw, params.Payload...) - err := msg.appendPadding(params) - return &msg, err -} - -// addPayloadSizeField appends the auxiliary field containing the size of payload -func (msg *sentMessage) addPayloadSizeField(payload []byte) { - fieldSize := getSizeOfPayloadSizeField(payload) - field := make([]byte, 4) - binary.LittleEndian.PutUint32(field, uint32(len(payload))) - field = field[:fieldSize] - msg.Raw = append(msg.Raw, field...) - msg.Raw[0] |= byte(fieldSize) -} - -// getSizeOfPayloadSizeField returns the number of bytes necessary to encode the size of payload -func getSizeOfPayloadSizeField(payload []byte) int { - s := 1 - for i := len(payload); i >= 256; i /= 256 { - s++ - } - return s -} - -// appendPadding appends the padding specified in params. -// If no padding is provided in params, then random padding is generated. -func (msg *sentMessage) appendPadding(params *MessageParams) error { - if len(params.Padding) != 0 { - // padding data was provided by the Dapp, just use it as is - msg.Raw = append(msg.Raw, params.Padding...) - return nil - } - - rawSize := flagsLength + getSizeOfPayloadSizeField(params.Payload) + len(params.Payload) - if params.Src != nil { - rawSize += signatureLength - } - odd := rawSize % padSizeLimit - paddingSize := padSizeLimit - odd - pad := make([]byte, paddingSize) - _, err := crand.Read(pad) - if err != nil { - return err - } - if !validateDataIntegrity(pad, paddingSize) { - return errors.New("failed to generate random padding of size " + strconv.Itoa(paddingSize)) - } - msg.Raw = append(msg.Raw, pad...) - return nil -} - -// sign calculates and sets the cryptographic signature for the message, -// also setting the sign flag. -func (msg *sentMessage) sign(key *ecdsa.PrivateKey) error { - if isMessageSigned(msg.Raw[0]) { - // this should not happen, but no reason to panic - log.Error("failed to sign the message: already signed") - return nil - } - - msg.Raw[0] |= signatureFlag // it is important to set this flag before signing - hash := crypto.Keccak256(msg.Raw) - signature, err := crypto.Sign(hash, key) - if err != nil { - msg.Raw[0] &= (0xFF ^ signatureFlag) // clear the flag - return err - } - msg.Raw = append(msg.Raw, signature...) - return nil -} - -// encryptAsymmetric encrypts a message with a public key. -func (msg *sentMessage) encryptAsymmetric(key *ecdsa.PublicKey) error { - if !ValidatePublicKey(key) { - return errors.New("invalid public key provided for asymmetric encryption") - } - encrypted, err := ecies.Encrypt(crand.Reader, ecies.ImportECDSAPublic(key), msg.Raw, nil, nil) - if err == nil { - msg.Raw = encrypted - } - return err -} - -// encryptSymmetric encrypts a message with a topic key, using AES-GCM-256. -// nonce size should be 12 bytes (see cipher.gcmStandardNonceSize). -func (msg *sentMessage) encryptSymmetric(key []byte) (err error) { - if !validateDataIntegrity(key, aesKeyLength) { - return errors.New("invalid key provided for symmetric encryption, size: " + strconv.Itoa(len(key))) - } - block, err := aes.NewCipher(key) - if err != nil { - return err - } - aesgcm, err := cipher.NewGCM(block) - if err != nil { - return err - } - salt, err := generateSecureRandomData(aesNonceLength) // never use more than 2^32 random nonces with a given key - if err != nil { - return err - } - encrypted := aesgcm.Seal(nil, salt, msg.Raw, nil) - msg.Raw = append(encrypted, salt...) - return nil -} - -// generateSecureRandomData generates random data where extra security is required. -// The purpose of this function is to prevent some bugs in software or in hardware -// from delivering not-very-random data. This is especially useful for AES nonce, -// where true randomness does not really matter, but it is very important to have -// a unique nonce for every message. -func generateSecureRandomData(length int) ([]byte, error) { - x := make([]byte, length) - y := make([]byte, length) - res := make([]byte, length) - - _, err := crand.Read(x) - if err != nil { - return nil, err - } else if !validateDataIntegrity(x, length) { - return nil, errors.New("crypto/rand failed to generate secure random data") - } - _, err = mrand.Read(y) - if err != nil { - return nil, err - } else if !validateDataIntegrity(y, length) { - return nil, errors.New("math/rand failed to generate secure random data") - } - for i := 0; i < length; i++ { - res[i] = x[i] ^ y[i] - } - if !validateDataIntegrity(res, length) { - return nil, errors.New("failed to generate secure random data") - } - return res, nil -} - -// Wrap bundles the message into an Envelope to transmit over the network. -func (msg *sentMessage) Wrap(options *MessageParams) (envelope *Envelope, err error) { - if options.TTL == 0 { - options.TTL = DefaultTTL - } - if options.Src != nil { - if err = msg.sign(options.Src); err != nil { - return nil, err - } - } - if options.Dst != nil { - err = msg.encryptAsymmetric(options.Dst) - } else if options.KeySym != nil { - err = msg.encryptSymmetric(options.KeySym) - } else { - err = errors.New("unable to encrypt the message: neither symmetric nor assymmetric key provided") - } - if err != nil { - return nil, err - } - - envelope = NewEnvelope(options.TTL, options.Topic, msg) - if err = envelope.Seal(options); err != nil { - return nil, err - } - return envelope, nil -} - -// decryptSymmetric decrypts a message with a topic key, using AES-GCM-256. -// nonce size should be 12 bytes (see cipher.gcmStandardNonceSize). -func (msg *ReceivedMessage) decryptSymmetric(key []byte) error { - // symmetric messages are expected to contain the 12-byte nonce at the end of the payload - if len(msg.Raw) < aesNonceLength { - return errors.New("missing salt or invalid payload in symmetric message") - } - salt := msg.Raw[len(msg.Raw)-aesNonceLength:] - - block, err := aes.NewCipher(key) - if err != nil { - return err - } - aesgcm, err := cipher.NewGCM(block) - if err != nil { - return err - } - decrypted, err := aesgcm.Open(nil, salt, msg.Raw[:len(msg.Raw)-aesNonceLength], nil) - if err != nil { - return err - } - msg.Raw = decrypted - msg.Salt = salt - return nil -} - -// decryptAsymmetric decrypts an encrypted payload with a private key. -func (msg *ReceivedMessage) decryptAsymmetric(key *ecdsa.PrivateKey) error { - decrypted, err := ecies.ImportECDSA(key).Decrypt(msg.Raw, nil, nil) - if err == nil { - msg.Raw = decrypted - } - return err -} - -// ValidateAndParse checks the message validity and extracts the fields in case of success. -func (msg *ReceivedMessage) ValidateAndParse() bool { - end := len(msg.Raw) - if end < 1 { - return false - } - - if isMessageSigned(msg.Raw[0]) { - end -= signatureLength - if end <= 1 { - return false - } - msg.Signature = msg.Raw[end : end+signatureLength] - msg.Src = msg.SigToPubKey() - if msg.Src == nil { - return false - } - } - - beg := 1 - payloadSize := 0 - sizeOfPayloadSizeField := int(msg.Raw[0] & SizeMask) // number of bytes indicating the size of payload - if sizeOfPayloadSizeField != 0 { - payloadSize = int(bytesToUintLittleEndian(msg.Raw[beg : beg+sizeOfPayloadSizeField])) - if payloadSize+1 > end { - return false - } - beg += sizeOfPayloadSizeField - msg.Payload = msg.Raw[beg : beg+payloadSize] - } - - beg += payloadSize - msg.Padding = msg.Raw[beg:end] - return true -} - -// SigToPubKey returns the public key associated to the message's -// signature. -func (msg *ReceivedMessage) SigToPubKey() *ecdsa.PublicKey { - defer func() { recover() }() // in case of invalid signature - - pub, err := crypto.SigToPub(msg.hash(), msg.Signature) - if err != nil { - log.Error("failed to recover public key from signature", "err", err) - return nil - } - return pub -} - -// hash calculates the SHA3 checksum of the message flags, payload size field, payload and padding. -func (msg *ReceivedMessage) hash() []byte { - if isMessageSigned(msg.Raw[0]) { - sz := len(msg.Raw) - signatureLength - return crypto.Keccak256(msg.Raw[:sz]) - } - return crypto.Keccak256(msg.Raw) -} diff --git a/whisper/whisperv6/message_test.go b/whisper/whisperv6/message_test.go deleted file mode 100644 index ece6d732cc..0000000000 --- a/whisper/whisperv6/message_test.go +++ /dev/null @@ -1,471 +0,0 @@ -// Copyright 2016 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -package whisperv6 - -import ( - "bytes" - "crypto/aes" - "crypto/cipher" - mrand "math/rand" - "testing" - - "github.com/ethereum/go-ethereum/common/hexutil" - "github.com/ethereum/go-ethereum/crypto" - "github.com/ethereum/go-ethereum/rlp" -) - -func generateMessageParams() (*MessageParams, error) { - // set all the parameters except p.Dst and p.Padding - - buf := make([]byte, 4) - mrand.Read(buf) - sz := mrand.Intn(400) - - var p MessageParams - p.PoW = 0.001 - p.WorkTime = 1 - p.TTL = uint32(mrand.Intn(1024)) - p.Payload = make([]byte, sz) - p.KeySym = make([]byte, aesKeyLength) - mrand.Read(p.Payload) - mrand.Read(p.KeySym) - p.Topic = BytesToTopic(buf) - - var err error - p.Src, err = crypto.GenerateKey() - if err != nil { - return nil, err - } - - return &p, nil -} - -func singleMessageTest(t *testing.T, symmetric bool) { - params, err := generateMessageParams() - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - - key, err := crypto.GenerateKey() - if err != nil { - t.Fatalf("failed GenerateKey with seed %d: %s.", seed, err) - } - - if !symmetric { - params.KeySym = nil - params.Dst = &key.PublicKey - } - - text := make([]byte, 0, 512) - text = append(text, params.Payload...) - - msg, err := NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - env, err := msg.Wrap(params) - if err != nil { - t.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - - var decrypted *ReceivedMessage - if symmetric { - decrypted, err = env.OpenSymmetric(params.KeySym) - } else { - decrypted, err = env.OpenAsymmetric(key) - } - - if err != nil { - t.Fatalf("failed to encrypt with seed %d: %s.", seed, err) - } - - if !decrypted.ValidateAndParse() { - t.Fatalf("failed to validate with seed %d, symmetric = %v.", seed, symmetric) - } - - if !bytes.Equal(text, decrypted.Payload) { - t.Fatalf("failed with seed %d: compare payload.", seed) - } - if !isMessageSigned(decrypted.Raw[0]) { - t.Fatalf("failed with seed %d: unsigned.", seed) - } - if len(decrypted.Signature) != signatureLength { - t.Fatalf("failed with seed %d: signature len %d.", seed, len(decrypted.Signature)) - } - if !IsPubKeyEqual(decrypted.Src, ¶ms.Src.PublicKey) { - t.Fatalf("failed with seed %d: signature mismatch.", seed) - } -} - -func TestMessageEncryption(t *testing.T) { - InitSingleTest() - - var symmetric bool - for i := 0; i < 256; i++ { - singleMessageTest(t, symmetric) - symmetric = !symmetric - } -} - -func TestMessageWrap(t *testing.T) { - seed = int64(1777444222) - mrand.Seed(seed) - target := 128.0 - - params, err := generateMessageParams() - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - - msg, err := NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - params.TTL = 1 - params.WorkTime = 12 - params.PoW = target - env, err := msg.Wrap(params) - if err != nil { - t.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - - pow := env.PoW() - if pow < target { - t.Fatalf("failed Wrap with seed %d: pow < target (%f vs. %f).", seed, pow, target) - } - - // set PoW target too high, expect error - msg2, err := NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - params.TTL = 1000000 - params.WorkTime = 1 - params.PoW = 10000000.0 - _, err = msg2.Wrap(params) - if err == nil { - t.Fatalf("unexpectedly reached the PoW target with seed %d.", seed) - } -} - -func TestMessageSeal(t *testing.T) { - // this test depends on deterministic choice of seed (1976726903) - seed = int64(1976726903) - mrand.Seed(seed) - - params, err := generateMessageParams() - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - - msg, err := NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - params.TTL = 1 - - env := NewEnvelope(params.TTL, params.Topic, msg) - if err != nil { - t.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - - env.Expiry = uint32(seed) // make it deterministic - target := 32.0 - params.WorkTime = 4 - params.PoW = target - env.Seal(params) - - env.calculatePoW(0) - pow := env.PoW() - if pow < target { - t.Fatalf("failed Wrap with seed %d: pow < target (%f vs. %f).", seed, pow, target) - } - - params.WorkTime = 1 - params.PoW = 1000000000.0 - env.Seal(params) - env.calculatePoW(0) - pow = env.PoW() - if pow < 2*target { - t.Fatalf("failed Wrap with seed %d: pow too small %f.", seed, pow) - } -} - -func TestEnvelopeOpen(t *testing.T) { - InitSingleTest() - - var symmetric bool - for i := 0; i < 32; i++ { - singleEnvelopeOpenTest(t, symmetric) - symmetric = !symmetric - } -} - -func singleEnvelopeOpenTest(t *testing.T, symmetric bool) { - params, err := generateMessageParams() - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - - key, err := crypto.GenerateKey() - if err != nil { - t.Fatalf("failed GenerateKey with seed %d: %s.", seed, err) - } - - if !symmetric { - params.KeySym = nil - params.Dst = &key.PublicKey - } - - text := make([]byte, 0, 512) - text = append(text, params.Payload...) - - msg, err := NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - env, err := msg.Wrap(params) - if err != nil { - t.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - - var f Filter - if symmetric { - f = Filter{KeySym: params.KeySym} - } else { - f = Filter{KeyAsym: key} - } - decrypted := env.Open(&f) - if decrypted == nil { - t.Fatalf("failed to open with seed %d.", seed) - } - - if !bytes.Equal(text, decrypted.Payload) { - t.Fatalf("failed with seed %d: compare payload.", seed) - } - if !isMessageSigned(decrypted.Raw[0]) { - t.Fatalf("failed with seed %d: unsigned.", seed) - } - if len(decrypted.Signature) != signatureLength { - t.Fatalf("failed with seed %d: signature len %d.", seed, len(decrypted.Signature)) - } - if !IsPubKeyEqual(decrypted.Src, ¶ms.Src.PublicKey) { - t.Fatalf("failed with seed %d: signature mismatch.", seed) - } - if decrypted.isAsymmetricEncryption() == symmetric { - t.Fatalf("failed with seed %d: asymmetric %v vs. %v.", seed, decrypted.isAsymmetricEncryption(), symmetric) - } - if decrypted.isSymmetricEncryption() != symmetric { - t.Fatalf("failed with seed %d: symmetric %v vs. %v.", seed, decrypted.isSymmetricEncryption(), symmetric) - } - if !symmetric { - if decrypted.Dst == nil { - t.Fatalf("failed with seed %d: dst is nil.", seed) - } - if !IsPubKeyEqual(decrypted.Dst, &key.PublicKey) { - t.Fatalf("failed with seed %d: Dst.", seed) - } - } -} - -func TestEncryptWithZeroKey(t *testing.T) { - InitSingleTest() - - params, err := generateMessageParams() - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - msg, err := NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - params.KeySym = make([]byte, aesKeyLength) - _, err = msg.Wrap(params) - if err == nil { - t.Fatalf("wrapped with zero key, seed: %d.", seed) - } - - params, err = generateMessageParams() - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - msg, err = NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - params.KeySym = make([]byte, 0) - _, err = msg.Wrap(params) - if err == nil { - t.Fatalf("wrapped with empty key, seed: %d.", seed) - } - - params, err = generateMessageParams() - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - msg, err = NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - params.KeySym = nil - _, err = msg.Wrap(params) - if err == nil { - t.Fatalf("wrapped with nil key, seed: %d.", seed) - } -} - -func TestRlpEncode(t *testing.T) { - InitSingleTest() - - params, err := generateMessageParams() - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - msg, err := NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - env, err := msg.Wrap(params) - if err != nil { - t.Fatalf("wrapped with zero key, seed: %d.", seed) - } - - raw, err := rlp.EncodeToBytes(env) - if err != nil { - t.Fatalf("RLP encode failed: %s.", err) - } - - var decoded Envelope - rlp.DecodeBytes(raw, &decoded) - if err != nil { - t.Fatalf("RLP decode failed: %s.", err) - } - - he := env.Hash() - hd := decoded.Hash() - - if he != hd { - t.Fatalf("Hashes are not equal: %x vs. %x", he, hd) - } -} - -func singlePaddingTest(t *testing.T, padSize int) { - params, err := generateMessageParams() - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d and sz=%d: %s.", seed, padSize, err) - } - params.Padding = make([]byte, padSize) - params.PoW = 0.0000000001 - pad := make([]byte, padSize) - _, err = mrand.Read(pad) - if err != nil { - t.Fatalf("padding is not generated (seed %d): %s", seed, err) - } - n := copy(params.Padding, pad) - if n != padSize { - t.Fatalf("padding is not copied (seed %d): %s", seed, err) - } - msg, err := NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - env, err := msg.Wrap(params) - if err != nil { - t.Fatalf("failed to wrap, seed: %d and sz=%d.", seed, padSize) - } - f := Filter{KeySym: params.KeySym} - decrypted := env.Open(&f) - if decrypted == nil { - t.Fatalf("failed to open, seed and sz=%d: %d.", seed, padSize) - } - if !bytes.Equal(pad, decrypted.Padding) { - t.Fatalf("padding is not retireved as expected with seed %d and sz=%d:\n[%x]\n[%x].", seed, padSize, pad, decrypted.Padding) - } -} - -func TestPadding(t *testing.T) { - InitSingleTest() - - for i := 1; i < 260; i++ { - singlePaddingTest(t, i) - } - - lim := 256 * 256 - for i := lim - 5; i < lim+2; i++ { - singlePaddingTest(t, i) - } - - for i := 0; i < 256; i++ { - n := mrand.Intn(256*254) + 256 - singlePaddingTest(t, n) - } - - for i := 0; i < 256; i++ { - n := mrand.Intn(256*1024) + 256*256 - singlePaddingTest(t, n) - } -} - -func TestPaddingAppendedToSymMessagesWithSignature(t *testing.T) { - params := &MessageParams{ - Payload: make([]byte, 246), - KeySym: make([]byte, aesKeyLength), - } - - pSrc, err := crypto.GenerateKey() - - if err != nil { - t.Fatalf("Error creating the signature key %v", err) - return - } - params.Src = pSrc - - // Simulate a message with a payload just under 256 so that - // payload + flag + signature > 256. Check that the result - // is padded on the next 256 boundary. - msg := sentMessage{} - const payloadSizeFieldMinSize = 1 - msg.Raw = make([]byte, flagsLength+payloadSizeFieldMinSize+len(params.Payload)) - - err = msg.appendPadding(params) - - if err != nil { - t.Fatalf("Error appending padding to message %v", err) - return - } - - if len(msg.Raw) != 512-signatureLength { - t.Errorf("Invalid size %d != 512", len(msg.Raw)) - } -} - -func TestAesNonce(t *testing.T) { - key := hexutil.MustDecode("0x03ca634cae0d49acb401d8a4c6b6fe8c55b70d115bf400769cc1400f3258cd31") - block, err := aes.NewCipher(key) - if err != nil { - t.Fatalf("NewCipher failed: %s", err) - } - aesgcm, err := cipher.NewGCM(block) - if err != nil { - t.Fatalf("NewGCM failed: %s", err) - } - // This is the most important single test in this package. - // If it fails, whisper will not be working. - if aesgcm.NonceSize() != aesNonceLength { - t.Fatalf("Nonce size is wrong. This is a critical error. Apparently AES nonce size have changed in the new version of AES GCM package. Whisper will not be working until this problem is resolved.") - } -} diff --git a/whisper/whisperv6/peer.go b/whisper/whisperv6/peer.go deleted file mode 100644 index 68fa7c8cba..0000000000 --- a/whisper/whisperv6/peer.go +++ /dev/null @@ -1,268 +0,0 @@ -// Copyright 2016 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -package whisperv6 - -import ( - "fmt" - "math" - "sync" - "time" - - mapset "github.com/deckarep/golang-set" - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/log" - "github.com/ethereum/go-ethereum/p2p" - "github.com/ethereum/go-ethereum/rlp" -) - -// Peer represents a whisper protocol peer connection. -type Peer struct { - host *Whisper - peer *p2p.Peer - ws p2p.MsgReadWriter - - trusted bool - powRequirement float64 - bloomMu sync.Mutex - bloomFilter []byte - fullNode bool - - known mapset.Set // Messages already known by the peer to avoid wasting bandwidth - - quit chan struct{} - - wg sync.WaitGroup -} - -// newPeer creates a new whisper peer object, but does not run the handshake itself. -func newPeer(host *Whisper, remote *p2p.Peer, rw p2p.MsgReadWriter) *Peer { - return &Peer{ - host: host, - peer: remote, - ws: rw, - trusted: false, - powRequirement: 0.0, - known: mapset.NewSet(), - quit: make(chan struct{}), - bloomFilter: MakeFullNodeBloom(), - fullNode: true, - } -} - -// start initiates the peer updater, periodically broadcasting the whisper packets -// into the network. -func (peer *Peer) start() { - peer.wg.Add(1) - go peer.update() - log.Trace("start", "peer", peer.ID()) -} - -// stop terminates the peer updater, stopping message forwarding to it. -func (peer *Peer) stop() { - close(peer.quit) - peer.wg.Wait() - log.Trace("stop", "peer", peer.ID()) -} - -// handshake sends the protocol initiation status message to the remote peer and -// verifies the remote status too. -func (peer *Peer) handshake() error { - // Send the handshake status message asynchronously - errc := make(chan error, 1) - isLightNode := peer.host.LightClientMode() - isRestrictedLightNodeConnection := peer.host.LightClientModeConnectionRestricted() - peer.wg.Add(1) - go func() { - defer peer.wg.Done() - pow := peer.host.MinPow() - powConverted := math.Float64bits(pow) - bloom := peer.host.BloomFilter() - - errc <- p2p.SendItems(peer.ws, statusCode, ProtocolVersion, powConverted, bloom, isLightNode) - }() - - // Fetch the remote status packet and verify protocol match - packet, err := peer.ws.ReadMsg() - if err != nil { - return err - } - if packet.Code != statusCode { - return fmt.Errorf("peer [%x] sent packet %x before status packet", peer.ID(), packet.Code) - } - s := rlp.NewStream(packet.Payload, uint64(packet.Size)) - _, err = s.List() - if err != nil { - return fmt.Errorf("peer [%x] sent bad status message: %v", peer.ID(), err) - } - peerVersion, err := s.Uint() - if err != nil { - return fmt.Errorf("peer [%x] sent bad status message (unable to decode version): %v", peer.ID(), err) - } - if peerVersion != ProtocolVersion { - return fmt.Errorf("peer [%x]: protocol version mismatch %d != %d", peer.ID(), peerVersion, ProtocolVersion) - } - - // only version is mandatory, subsequent parameters are optional - powRaw, err := s.Uint() - if err == nil { - pow := math.Float64frombits(powRaw) - if math.IsInf(pow, 0) || math.IsNaN(pow) || pow < 0.0 { - return fmt.Errorf("peer [%x] sent bad status message: invalid pow", peer.ID()) - } - peer.powRequirement = pow - - var bloom []byte - err = s.Decode(&bloom) - if err == nil { - sz := len(bloom) - if sz != BloomFilterSize && sz != 0 { - return fmt.Errorf("peer [%x] sent bad status message: wrong bloom filter size %d", peer.ID(), sz) - } - peer.setBloomFilter(bloom) - } - } - - isRemotePeerLightNode, _ := s.Bool() - if isRemotePeerLightNode && isLightNode && isRestrictedLightNodeConnection { - return fmt.Errorf("peer [%x] is useless: two light client communication restricted", peer.ID()) - } - - if err := <-errc; err != nil { - return fmt.Errorf("peer [%x] failed to send status packet: %v", peer.ID(), err) - } - return nil -} - -// update executes periodic operations on the peer, including message transmission -// and expiration. -func (peer *Peer) update() { - defer peer.wg.Done() - // Start the tickers for the updates - expire := time.NewTicker(expirationCycle) - defer expire.Stop() - transmit := time.NewTicker(transmissionCycle) - defer transmit.Stop() - - // Loop and transmit until termination is requested - for { - select { - case <-expire.C: - peer.expire() - - case <-transmit.C: - if err := peer.broadcast(); err != nil { - log.Trace("broadcast failed", "reason", err, "peer", peer.ID()) - return - } - - case <-peer.quit: - return - } - } -} - -// mark marks an envelope known to the peer so that it won't be sent back. -func (peer *Peer) mark(envelope *Envelope) { - peer.known.Add(envelope.Hash()) -} - -// marked checks if an envelope is already known to the remote peer. -func (peer *Peer) marked(envelope *Envelope) bool { - return peer.known.Contains(envelope.Hash()) -} - -// expire iterates over all the known envelopes in the host and removes all -// expired (unknown) ones from the known list. -func (peer *Peer) expire() { - unmark := make(map[common.Hash]struct{}) - peer.known.Each(func(v interface{}) bool { - if !peer.host.isEnvelopeCached(v.(common.Hash)) { - unmark[v.(common.Hash)] = struct{}{} - } - return true - }) - // Dump all known but no longer cached - for hash := range unmark { - peer.known.Remove(hash) - } -} - -// broadcast iterates over the collection of envelopes and transmits yet unknown -// ones over the network. -func (peer *Peer) broadcast() error { - envelopes := peer.host.Envelopes() - bundle := make([]*Envelope, 0, len(envelopes)) - for _, envelope := range envelopes { - if !peer.marked(envelope) && envelope.PoW() >= peer.powRequirement && peer.bloomMatch(envelope) { - bundle = append(bundle, envelope) - } - } - - if len(bundle) > 0 { - // transmit the batch of envelopes - if err := p2p.Send(peer.ws, messagesCode, bundle); err != nil { - return err - } - - // mark envelopes only if they were successfully sent - for _, e := range bundle { - peer.mark(e) - } - - log.Trace("broadcast", "num. messages", len(bundle)) - } - return nil -} - -// ID returns a peer's id -func (peer *Peer) ID() []byte { - id := peer.peer.ID() - return id[:] -} - -func (peer *Peer) notifyAboutPowRequirementChange(pow float64) error { - i := math.Float64bits(pow) - return p2p.Send(peer.ws, powRequirementCode, i) -} - -func (peer *Peer) notifyAboutBloomFilterChange(bloom []byte) error { - return p2p.Send(peer.ws, bloomFilterExCode, bloom) -} - -func (peer *Peer) bloomMatch(env *Envelope) bool { - peer.bloomMu.Lock() - defer peer.bloomMu.Unlock() - return peer.fullNode || BloomFilterMatch(peer.bloomFilter, env.Bloom()) -} - -func (peer *Peer) setBloomFilter(bloom []byte) { - peer.bloomMu.Lock() - defer peer.bloomMu.Unlock() - peer.bloomFilter = bloom - peer.fullNode = isFullNode(bloom) - if peer.fullNode && peer.bloomFilter == nil { - peer.bloomFilter = MakeFullNodeBloom() - } -} - -func MakeFullNodeBloom() []byte { - bloom := make([]byte, BloomFilterSize) - for i := 0; i < BloomFilterSize; i++ { - bloom[i] = 0xFF - } - return bloom -} diff --git a/whisper/whisperv6/topic.go b/whisper/whisperv6/topic.go deleted file mode 100644 index ee255f785d..0000000000 --- a/whisper/whisperv6/topic.go +++ /dev/null @@ -1,56 +0,0 @@ -// Copyright 2016 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -// Contains the Whisper protocol Topic element. - -package whisperv6 - -import ( - "github.com/ethereum/go-ethereum/common/hexutil" -) - -// TopicType represents a cryptographically secure, probabilistic partial -// classifications of a message, determined as the first (left) 4 bytes of the -// SHA3 hash of some arbitrary data given by the original author of the message. -type TopicType [TopicLength]byte - -// BytesToTopic converts from the byte array representation of a topic -// into the TopicType type. -func BytesToTopic(b []byte) (t TopicType) { - sz := TopicLength - if x := len(b); x < TopicLength { - sz = x - } - for i := 0; i < sz; i++ { - t[i] = b[i] - } - return t -} - -// String converts a topic byte array to a string representation. -func (t *TopicType) String() string { - return hexutil.Encode(t[:]) -} - -// MarshalText returns the hex representation of t. -func (t TopicType) MarshalText() ([]byte, error) { - return hexutil.Bytes(t[:]).MarshalText() -} - -// UnmarshalText parses a hex representation to a topic. -func (t *TopicType) UnmarshalText(input []byte) error { - return hexutil.UnmarshalFixedText("Topic", input, t[:]) -} diff --git a/whisper/whisperv6/topic_test.go b/whisper/whisperv6/topic_test.go deleted file mode 100644 index 454afe0de1..0000000000 --- a/whisper/whisperv6/topic_test.go +++ /dev/null @@ -1,134 +0,0 @@ -// Copyright 2016 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -package whisperv6 - -import ( - "encoding/json" - "testing" -) - -var topicStringTests = []struct { - topic TopicType - str string -}{ - {topic: TopicType{0x00, 0x00, 0x00, 0x00}, str: "0x00000000"}, - {topic: TopicType{0x00, 0x7f, 0x80, 0xff}, str: "0x007f80ff"}, - {topic: TopicType{0xff, 0x80, 0x7f, 0x00}, str: "0xff807f00"}, - {topic: TopicType{0xf2, 0x6e, 0x77, 0x79}, str: "0xf26e7779"}, -} - -func TestTopicString(t *testing.T) { - for i, tst := range topicStringTests { - s := tst.topic.String() - if s != tst.str { - t.Fatalf("failed test %d: have %s, want %s.", i, s, tst.str) - } - } -} - -var bytesToTopicTests = []struct { - data []byte - topic TopicType -}{ - {topic: TopicType{0x8f, 0x9a, 0x2b, 0x7d}, data: []byte{0x8f, 0x9a, 0x2b, 0x7d}}, - {topic: TopicType{0x00, 0x7f, 0x80, 0xff}, data: []byte{0x00, 0x7f, 0x80, 0xff}}, - {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte{0x00, 0x00, 0x00, 0x00}}, - {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte{0x00, 0x00, 0x00}}, - {topic: TopicType{0x01, 0x00, 0x00, 0x00}, data: []byte{0x01}}, - {topic: TopicType{0x00, 0xfe, 0x00, 0x00}, data: []byte{0x00, 0xfe}}, - {topic: TopicType{0xea, 0x1d, 0x43, 0x00}, data: []byte{0xea, 0x1d, 0x43}}, - {topic: TopicType{0x6f, 0x3c, 0xb0, 0xdd}, data: []byte{0x6f, 0x3c, 0xb0, 0xdd, 0x0f, 0x00, 0x90}}, - {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte{}}, - {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: nil}, -} - -var unmarshalTestsGood = []struct { - topic TopicType - data []byte -}{ - {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"0x00000000"`)}, - {topic: TopicType{0x00, 0x7f, 0x80, 0xff}, data: []byte(`"0x007f80ff"`)}, - {topic: TopicType{0xff, 0x80, 0x7f, 0x00}, data: []byte(`"0xff807f00"`)}, - {topic: TopicType{0xf2, 0x6e, 0x77, 0x79}, data: []byte(`"0xf26e7779"`)}, -} - -var unmarshalTestsBad = []struct { - topic TopicType - data []byte -}{ - {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"0x000000"`)}, - {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"0x0000000"`)}, - {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"0x000000000"`)}, - {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"0x0000000000"`)}, - {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"000000"`)}, - {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"0000000"`)}, - {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"000000000"`)}, - {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"0000000000"`)}, - {topic: TopicType{0x00, 0x00, 0x00, 0x00}, data: []byte(`"abcdefg0"`)}, -} - -var unmarshalTestsUgly = []struct { - topic TopicType - data []byte -}{ - {topic: TopicType{0x01, 0x00, 0x00, 0x00}, data: []byte(`"0x00000001"`)}, -} - -func TestBytesToTopic(t *testing.T) { - for i, tst := range bytesToTopicTests { - top := BytesToTopic(tst.data) - if top != tst.topic { - t.Fatalf("failed test %d: have %v, want %v.", i, t, tst.topic) - } - } -} - -func TestUnmarshalTestsGood(t *testing.T) { - for i, tst := range unmarshalTestsGood { - var top TopicType - err := json.Unmarshal(tst.data, &top) - if err != nil { - t.Errorf("failed test %d. input: %v. err: %v", i, tst.data, err) - } else if top != tst.topic { - t.Errorf("failed test %d: have %v, want %v.", i, t, tst.topic) - } - } -} - -func TestUnmarshalTestsBad(t *testing.T) { - // in this test UnmarshalJSON() is supposed to fail - for i, tst := range unmarshalTestsBad { - var top TopicType - err := json.Unmarshal(tst.data, &top) - if err == nil { - t.Fatalf("failed test %d. input: %v.", i, tst.data) - } - } -} - -func TestUnmarshalTestsUgly(t *testing.T) { - // in this test UnmarshalJSON() is NOT supposed to fail, but result should be wrong - for i, tst := range unmarshalTestsUgly { - var top TopicType - err := json.Unmarshal(tst.data, &top) - if err != nil { - t.Errorf("failed test %d. input: %v.", i, tst.data) - } else if top == tst.topic { - t.Errorf("failed test %d: have %v, want %v.", i, top, tst.topic) - } - } -} diff --git a/whisper/whisperv6/whisper.go b/whisper/whisperv6/whisper.go deleted file mode 100644 index ac61036705..0000000000 --- a/whisper/whisperv6/whisper.go +++ /dev/null @@ -1,1140 +0,0 @@ -// Copyright 2016 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -package whisperv6 - -import ( - "bytes" - "crypto/ecdsa" - "crypto/sha256" - "fmt" - "math" - "runtime" - "sync" - "time" - - mapset "github.com/deckarep/golang-set" - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/crypto" - "github.com/ethereum/go-ethereum/log" - "github.com/ethereum/go-ethereum/node" - "github.com/ethereum/go-ethereum/p2p" - "github.com/ethereum/go-ethereum/rlp" - "github.com/ethereum/go-ethereum/rpc" - "github.com/syndtr/goleveldb/leveldb/errors" - "golang.org/x/crypto/pbkdf2" - "golang.org/x/sync/syncmap" -) - -// Statistics holds several message-related counter for analytics -// purposes. -type Statistics struct { - messagesCleared int - memoryCleared int - memoryUsed int - cycles int - totalMessagesCleared int -} - -const ( - maxMsgSizeIdx = iota // Maximal message length allowed by the whisper node - overflowIdx // Indicator of message queue overflow - minPowIdx // Minimal PoW required by the whisper node - minPowToleranceIdx // Minimal PoW tolerated by the whisper node for a limited time - bloomFilterIdx // Bloom filter for topics of interest for this node - bloomFilterToleranceIdx // Bloom filter tolerated by the whisper node for a limited time - lightClientModeIdx // Light client mode. (does not forward any messages) - restrictConnectionBetweenLightClientsIdx // Restrict connection between two light clients -) - -// Whisper represents a dark communication interface through the Ethereum -// network, using its very own P2P communication layer. -type Whisper struct { - protocol p2p.Protocol // Protocol description and parameters - filters *Filters // Message filters installed with Subscribe function - - privateKeys map[string]*ecdsa.PrivateKey // Private key storage - symKeys map[string][]byte // Symmetric key storage - keyMu sync.RWMutex // Mutex associated with key storages - - poolMu sync.RWMutex // Mutex to sync the message and expiration pools - envelopes map[common.Hash]*Envelope // Pool of envelopes currently tracked by this node - expirations map[uint32]mapset.Set // Message expiration pool - - peerMu sync.RWMutex // Mutex to sync the active peer set - peers map[*Peer]struct{} // Set of currently active peers - - messageQueue chan *Envelope // Message queue for normal whisper messages - p2pMsgQueue chan *Envelope // Message queue for peer-to-peer messages (not to be forwarded any further) - quit chan struct{} // Channel used for graceful exit - - settings syncmap.Map // holds configuration settings that can be dynamically changed - - syncAllowance int // maximum time in seconds allowed to process the whisper-related messages - - statsMu sync.Mutex // guard stats - stats Statistics // Statistics of whisper node - - mailServer MailServer // MailServer interface - - wg sync.WaitGroup -} - -// New creates a Whisper client ready to communicate through the Ethereum P2P network. -func New(stack *node.Node, cfg *Config) (*Whisper, error) { - if cfg == nil { - cfg = &DefaultConfig - } - - whisper := &Whisper{ - privateKeys: make(map[string]*ecdsa.PrivateKey), - symKeys: make(map[string][]byte), - envelopes: make(map[common.Hash]*Envelope), - expirations: make(map[uint32]mapset.Set), - peers: make(map[*Peer]struct{}), - messageQueue: make(chan *Envelope, messageQueueLimit), - p2pMsgQueue: make(chan *Envelope, messageQueueLimit), - quit: make(chan struct{}), - syncAllowance: DefaultSyncAllowance, - } - - whisper.filters = NewFilters(whisper) - - whisper.settings.Store(minPowIdx, cfg.MinimumAcceptedPOW) - whisper.settings.Store(maxMsgSizeIdx, cfg.MaxMessageSize) - whisper.settings.Store(overflowIdx, false) - whisper.settings.Store(restrictConnectionBetweenLightClientsIdx, cfg.RestrictConnectionBetweenLightClients) - - // p2p whisper sub protocol handler - whisper.protocol = p2p.Protocol{ - Name: ProtocolName, - Version: uint(ProtocolVersion), - Length: NumberOfMessageCodes, - Run: whisper.HandlePeer, - NodeInfo: func() interface{} { - return map[string]interface{}{ - "version": ProtocolVersionStr, - "maxMessageSize": whisper.MaxMessageSize(), - "minimumPoW": whisper.MinPow(), - } - }, - } - - stack.RegisterAPIs(whisper.APIs()) - stack.RegisterProtocols(whisper.Protocols()) - stack.RegisterLifecycle(whisper) - return whisper, nil -} - -// MinPow returns the PoW value required by this node. -func (whisper *Whisper) MinPow() float64 { - val, exist := whisper.settings.Load(minPowIdx) - if !exist || val == nil { - return DefaultMinimumPoW - } - v, ok := val.(float64) - if !ok { - log.Error("Error loading minPowIdx, using default") - return DefaultMinimumPoW - } - return v -} - -// MinPowTolerance returns the value of minimum PoW which is tolerated for a limited -// time after PoW was changed. If sufficient time have elapsed or no change of PoW -// have ever occurred, the return value will be the same as return value of MinPow(). -func (whisper *Whisper) MinPowTolerance() float64 { - val, exist := whisper.settings.Load(minPowToleranceIdx) - if !exist || val == nil { - return DefaultMinimumPoW - } - return val.(float64) -} - -// BloomFilter returns the aggregated bloom filter for all the topics of interest. -// The nodes are required to send only messages that match the advertised bloom filter. -// If a message does not match the bloom, it will tantamount to spam, and the peer will -// be disconnected. -func (whisper *Whisper) BloomFilter() []byte { - val, exist := whisper.settings.Load(bloomFilterIdx) - if !exist || val == nil { - return nil - } - return val.([]byte) -} - -// BloomFilterTolerance returns the bloom filter which is tolerated for a limited -// time after new bloom was advertised to the peers. If sufficient time have elapsed -// or no change of bloom filter have ever occurred, the return value will be the same -// as return value of BloomFilter(). -func (whisper *Whisper) BloomFilterTolerance() []byte { - val, exist := whisper.settings.Load(bloomFilterToleranceIdx) - if !exist || val == nil { - return nil - } - return val.([]byte) -} - -// MaxMessageSize returns the maximum accepted message size. -func (whisper *Whisper) MaxMessageSize() uint32 { - val, _ := whisper.settings.Load(maxMsgSizeIdx) - return val.(uint32) -} - -// Overflow returns an indication if the message queue is full. -func (whisper *Whisper) Overflow() bool { - val, _ := whisper.settings.Load(overflowIdx) - return val.(bool) -} - -// APIs returns the RPC descriptors the Whisper implementation offers -func (whisper *Whisper) APIs() []rpc.API { - return []rpc.API{ - { - Namespace: ProtocolName, - Version: ProtocolVersionStr, - Service: NewPublicWhisperAPI(whisper), - Public: true, - }, - } -} - -// RegisterServer registers MailServer interface. -// MailServer will process all the incoming messages with p2pRequestCode. -func (whisper *Whisper) RegisterServer(server MailServer) { - whisper.mailServer = server -} - -// Protocols returns the whisper sub-protocols ran by this particular client. -func (whisper *Whisper) Protocols() []p2p.Protocol { - return []p2p.Protocol{whisper.protocol} -} - -// Version returns the whisper sub-protocols version number. -func (whisper *Whisper) Version() uint { - return whisper.protocol.Version -} - -// SetMaxMessageSize sets the maximal message size allowed by this node -func (whisper *Whisper) SetMaxMessageSize(size uint32) error { - if size > MaxMessageSize { - return fmt.Errorf("message size too large [%d>%d]", size, MaxMessageSize) - } - whisper.settings.Store(maxMsgSizeIdx, size) - return nil -} - -// SetBloomFilter sets the new bloom filter -func (whisper *Whisper) SetBloomFilter(bloom []byte) error { - if len(bloom) != BloomFilterSize { - return fmt.Errorf("invalid bloom filter size: %d", len(bloom)) - } - - b := make([]byte, BloomFilterSize) - copy(b, bloom) - - whisper.settings.Store(bloomFilterIdx, b) - whisper.notifyPeersAboutBloomFilterChange(b) - - whisper.wg.Add(1) - go func() { - // allow some time before all the peers have processed the notification - defer whisper.wg.Done() - ticker := time.NewTicker(time.Duration(whisper.syncAllowance) * time.Second) - defer ticker.Stop() - - <-ticker.C - whisper.settings.Store(bloomFilterToleranceIdx, b) - }() - - return nil -} - -// SetMinimumPoW sets the minimal PoW required by this node -func (whisper *Whisper) SetMinimumPoW(val float64) error { - if val < 0.0 { - return fmt.Errorf("invalid PoW: %f", val) - } - - whisper.settings.Store(minPowIdx, val) - whisper.notifyPeersAboutPowRequirementChange(val) - - whisper.wg.Add(1) - go func() { - defer whisper.wg.Done() - // allow some time before all the peers have processed the notification - ticker := time.NewTicker(time.Duration(whisper.syncAllowance) * time.Second) - defer ticker.Stop() - - <-ticker.C - whisper.settings.Store(minPowToleranceIdx, val) - }() - - return nil -} - -// SetMinimumPowTest sets the minimal PoW in test environment -func (whisper *Whisper) SetMinimumPowTest(val float64) { - whisper.settings.Store(minPowIdx, val) - whisper.notifyPeersAboutPowRequirementChange(val) - whisper.settings.Store(minPowToleranceIdx, val) -} - -//SetLightClientMode makes node light client (does not forward any messages) -func (whisper *Whisper) SetLightClientMode(v bool) { - whisper.settings.Store(lightClientModeIdx, v) -} - -//LightClientMode indicates is this node is light client (does not forward any messages) -func (whisper *Whisper) LightClientMode() bool { - val, exist := whisper.settings.Load(lightClientModeIdx) - if !exist || val == nil { - return false - } - v, ok := val.(bool) - return v && ok -} - -//LightClientModeConnectionRestricted indicates that connection to light client in light client mode not allowed -func (whisper *Whisper) LightClientModeConnectionRestricted() bool { - val, exist := whisper.settings.Load(restrictConnectionBetweenLightClientsIdx) - if !exist || val == nil { - return false - } - v, ok := val.(bool) - return v && ok -} - -func (whisper *Whisper) notifyPeersAboutPowRequirementChange(pow float64) { - arr := whisper.getPeers() - for _, p := range arr { - err := p.notifyAboutPowRequirementChange(pow) - if err != nil { - // allow one retry - err = p.notifyAboutPowRequirementChange(pow) - } - if err != nil { - log.Warn("failed to notify peer about new pow requirement", "peer", p.ID(), "error", err) - } - } -} - -func (whisper *Whisper) notifyPeersAboutBloomFilterChange(bloom []byte) { - arr := whisper.getPeers() - for _, p := range arr { - err := p.notifyAboutBloomFilterChange(bloom) - if err != nil { - // allow one retry - err = p.notifyAboutBloomFilterChange(bloom) - } - if err != nil { - log.Warn("failed to notify peer about new bloom filter", "peer", p.ID(), "error", err) - } - } -} - -func (whisper *Whisper) getPeers() []*Peer { - arr := make([]*Peer, len(whisper.peers)) - i := 0 - whisper.peerMu.Lock() - defer whisper.peerMu.Unlock() - for p := range whisper.peers { - arr[i] = p - i++ - } - return arr -} - -// getPeer retrieves peer by ID -func (whisper *Whisper) getPeer(peerID []byte) (*Peer, error) { - whisper.peerMu.Lock() - defer whisper.peerMu.Unlock() - for p := range whisper.peers { - id := p.peer.ID() - if bytes.Equal(peerID, id[:]) { - return p, nil - } - } - return nil, fmt.Errorf("could not find peer with ID: %x", peerID) -} - -// AllowP2PMessagesFromPeer marks specific peer trusted, -// which will allow it to send historic (expired) messages. -func (whisper *Whisper) AllowP2PMessagesFromPeer(peerID []byte) error { - p, err := whisper.getPeer(peerID) - if err != nil { - return err - } - p.trusted = true - return nil -} - -// RequestHistoricMessages sends a message with p2pRequestCode to a specific peer, -// which is known to implement MailServer interface, and is supposed to process this -// request and respond with a number of peer-to-peer messages (possibly expired), -// which are not supposed to be forwarded any further. -// The whisper protocol is agnostic of the format and contents of envelope. -func (whisper *Whisper) RequestHistoricMessages(peerID []byte, envelope *Envelope) error { - p, err := whisper.getPeer(peerID) - if err != nil { - return err - } - p.trusted = true - return p2p.Send(p.ws, p2pRequestCode, envelope) -} - -// SendP2PMessage sends a peer-to-peer message to a specific peer. -func (whisper *Whisper) SendP2PMessage(peerID []byte, envelope *Envelope) error { - p, err := whisper.getPeer(peerID) - if err != nil { - return err - } - return whisper.SendP2PDirect(p, envelope) -} - -// SendP2PDirect sends a peer-to-peer message to a specific peer. -func (whisper *Whisper) SendP2PDirect(peer *Peer, envelope *Envelope) error { - return p2p.Send(peer.ws, p2pMessageCode, envelope) -} - -// NewKeyPair generates a new cryptographic identity for the client, and injects -// it into the known identities for message decryption. Returns ID of the new key pair. -func (whisper *Whisper) NewKeyPair() (string, error) { - key, err := crypto.GenerateKey() - if err != nil || !validatePrivateKey(key) { - key, err = crypto.GenerateKey() // retry once - } - if err != nil { - return "", err - } - if !validatePrivateKey(key) { - return "", fmt.Errorf("failed to generate valid key") - } - - id, err := GenerateRandomID() - if err != nil { - return "", fmt.Errorf("failed to generate ID: %s", err) - } - - whisper.keyMu.Lock() - defer whisper.keyMu.Unlock() - - if whisper.privateKeys[id] != nil { - return "", fmt.Errorf("failed to generate unique ID") - } - whisper.privateKeys[id] = key - return id, nil -} - -// DeleteKeyPair deletes the specified key if it exists. -func (whisper *Whisper) DeleteKeyPair(key string) bool { - whisper.keyMu.Lock() - defer whisper.keyMu.Unlock() - - if whisper.privateKeys[key] != nil { - delete(whisper.privateKeys, key) - return true - } - return false -} - -// AddKeyPair imports a asymmetric private key and returns it identifier. -func (whisper *Whisper) AddKeyPair(key *ecdsa.PrivateKey) (string, error) { - id, err := GenerateRandomID() - if err != nil { - return "", fmt.Errorf("failed to generate ID: %s", err) - } - - whisper.keyMu.Lock() - whisper.privateKeys[id] = key - whisper.keyMu.Unlock() - - return id, nil -} - -// HasKeyPair checks if the whisper node is configured with the private key -// of the specified public pair. -func (whisper *Whisper) HasKeyPair(id string) bool { - whisper.keyMu.RLock() - defer whisper.keyMu.RUnlock() - return whisper.privateKeys[id] != nil -} - -// GetPrivateKey retrieves the private key of the specified identity. -func (whisper *Whisper) GetPrivateKey(id string) (*ecdsa.PrivateKey, error) { - whisper.keyMu.RLock() - defer whisper.keyMu.RUnlock() - key := whisper.privateKeys[id] - if key == nil { - return nil, fmt.Errorf("invalid id") - } - return key, nil -} - -// GenerateSymKey generates a random symmetric key and stores it under id, -// which is then returned. Will be used in the future for session key exchange. -func (whisper *Whisper) GenerateSymKey() (string, error) { - key, err := generateSecureRandomData(aesKeyLength) - if err != nil { - return "", err - } else if !validateDataIntegrity(key, aesKeyLength) { - return "", fmt.Errorf("error in GenerateSymKey: crypto/rand failed to generate random data") - } - - id, err := GenerateRandomID() - if err != nil { - return "", fmt.Errorf("failed to generate ID: %s", err) - } - - whisper.keyMu.Lock() - defer whisper.keyMu.Unlock() - - if whisper.symKeys[id] != nil { - return "", fmt.Errorf("failed to generate unique ID") - } - whisper.symKeys[id] = key - return id, nil -} - -// AddSymKeyDirect stores the key, and returns its id. -func (whisper *Whisper) AddSymKeyDirect(key []byte) (string, error) { - if len(key) != aesKeyLength { - return "", fmt.Errorf("wrong key size: %d", len(key)) - } - - id, err := GenerateRandomID() - if err != nil { - return "", fmt.Errorf("failed to generate ID: %s", err) - } - - whisper.keyMu.Lock() - defer whisper.keyMu.Unlock() - - if whisper.symKeys[id] != nil { - return "", fmt.Errorf("failed to generate unique ID") - } - whisper.symKeys[id] = key - return id, nil -} - -// AddSymKeyFromPassword generates the key from password, stores it, and returns its id. -func (whisper *Whisper) AddSymKeyFromPassword(password string) (string, error) { - id, err := GenerateRandomID() - if err != nil { - return "", fmt.Errorf("failed to generate ID: %s", err) - } - if whisper.HasSymKey(id) { - return "", fmt.Errorf("failed to generate unique ID") - } - - // kdf should run no less than 0.1 seconds on an average computer, - // because it's an once in a session experience - derived := pbkdf2.Key([]byte(password), nil, 65356, aesKeyLength, sha256.New) - if err != nil { - return "", err - } - - whisper.keyMu.Lock() - defer whisper.keyMu.Unlock() - - // double check is necessary, because deriveKeyMaterial() is very slow - if whisper.symKeys[id] != nil { - return "", fmt.Errorf("critical error: failed to generate unique ID") - } - whisper.symKeys[id] = derived - return id, nil -} - -// HasSymKey returns true if there is a key associated with the given id. -// Otherwise returns false. -func (whisper *Whisper) HasSymKey(id string) bool { - whisper.keyMu.RLock() - defer whisper.keyMu.RUnlock() - return whisper.symKeys[id] != nil -} - -// DeleteSymKey deletes the key associated with the name string if it exists. -func (whisper *Whisper) DeleteSymKey(id string) bool { - whisper.keyMu.Lock() - defer whisper.keyMu.Unlock() - if whisper.symKeys[id] != nil { - delete(whisper.symKeys, id) - return true - } - return false -} - -// GetSymKey returns the symmetric key associated with the given id. -func (whisper *Whisper) GetSymKey(id string) ([]byte, error) { - whisper.keyMu.RLock() - defer whisper.keyMu.RUnlock() - if whisper.symKeys[id] != nil { - return whisper.symKeys[id], nil - } - return nil, fmt.Errorf("non-existent key ID") -} - -// Subscribe installs a new message handler used for filtering, decrypting -// and subsequent storing of incoming messages. -func (whisper *Whisper) Subscribe(f *Filter) (string, error) { - s, err := whisper.filters.Install(f) - if err == nil { - whisper.updateBloomFilter(f) - } - return s, err -} - -// updateBloomFilter recalculates the new value of bloom filter, -// and informs the peers if necessary. -func (whisper *Whisper) updateBloomFilter(f *Filter) { - aggregate := make([]byte, BloomFilterSize) - for _, t := range f.Topics { - top := BytesToTopic(t) - b := TopicToBloom(top) - aggregate = addBloom(aggregate, b) - } - - if !BloomFilterMatch(whisper.BloomFilter(), aggregate) { - // existing bloom filter must be updated - aggregate = addBloom(whisper.BloomFilter(), aggregate) - whisper.SetBloomFilter(aggregate) - } -} - -// GetFilter returns the filter by id. -func (whisper *Whisper) GetFilter(id string) *Filter { - return whisper.filters.Get(id) -} - -// Unsubscribe removes an installed message handler. -func (whisper *Whisper) Unsubscribe(id string) error { - ok := whisper.filters.Uninstall(id) - if !ok { - return fmt.Errorf("Unsubscribe: Invalid ID") - } - return nil -} - -// Send injects a message into the whisper send queue, to be distributed in the -// network in the coming cycles. -func (whisper *Whisper) Send(envelope *Envelope) error { - ok, err := whisper.add(envelope, false) - if err == nil && !ok { - return fmt.Errorf("failed to add envelope") - } - return err -} - -// Start implements node.Lifecycle, starting the background data propagation thread -// of the Whisper protocol. -func (whisper *Whisper) Start() error { - log.Info("started whisper v." + ProtocolVersionStr) - whisper.wg.Add(1) - go whisper.update() - - numCPU := runtime.NumCPU() - for i := 0; i < numCPU; i++ { - whisper.wg.Add(1) - go whisper.processQueue() - } - - return nil -} - -// Stop implements node.Lifecycle, stopping the background data propagation thread -// of the Whisper protocol. -func (whisper *Whisper) Stop() error { - close(whisper.quit) - whisper.wg.Wait() - log.Info("whisper stopped") - return nil -} - -// HandlePeer is called by the underlying P2P layer when the whisper sub-protocol -// connection is negotiated. -func (whisper *Whisper) HandlePeer(peer *p2p.Peer, rw p2p.MsgReadWriter) error { - // Create the new peer and start tracking it - whisperPeer := newPeer(whisper, peer, rw) - - whisper.peerMu.Lock() - whisper.peers[whisperPeer] = struct{}{} - whisper.peerMu.Unlock() - - defer func() { - whisper.peerMu.Lock() - delete(whisper.peers, whisperPeer) - whisper.peerMu.Unlock() - }() - - // Run the peer handshake and state updates - if err := whisperPeer.handshake(); err != nil { - return err - } - whisperPeer.start() - defer whisperPeer.stop() - - return whisper.runMessageLoop(whisperPeer, rw) -} - -// runMessageLoop reads and processes inbound messages directly to merge into client-global state. -func (whisper *Whisper) runMessageLoop(p *Peer, rw p2p.MsgReadWriter) error { - for { - // fetch the next packet - packet, err := rw.ReadMsg() - if err != nil { - log.Info("message loop", "peer", p.peer.ID(), "err", err) - return err - } - if packet.Size > whisper.MaxMessageSize() { - log.Warn("oversized message received", "peer", p.peer.ID()) - return errors.New("oversized message received") - } - - switch packet.Code { - case statusCode: - // this should not happen, but no need to panic; just ignore this message. - log.Warn("unxepected status message received", "peer", p.peer.ID()) - case messagesCode: - // decode the contained envelopes - var envelopes []*Envelope - if err := packet.Decode(&envelopes); err != nil { - log.Warn("failed to decode envelopes, peer will be disconnected", "peer", p.peer.ID(), "err", err) - return errors.New("invalid envelopes") - } - - trouble := false - for _, env := range envelopes { - cached, err := whisper.add(env, whisper.LightClientMode()) - if err != nil { - trouble = true - log.Error("bad envelope received, peer will be disconnected", "peer", p.peer.ID(), "err", err) - } - if cached { - p.mark(env) - } - } - - if trouble { - return errors.New("invalid envelope") - } - case powRequirementCode: - s := rlp.NewStream(packet.Payload, uint64(packet.Size)) - i, err := s.Uint() - if err != nil { - log.Warn("failed to decode powRequirementCode message, peer will be disconnected", "peer", p.peer.ID(), "err", err) - return errors.New("invalid powRequirementCode message") - } - f := math.Float64frombits(i) - if math.IsInf(f, 0) || math.IsNaN(f) || f < 0.0 { - log.Warn("invalid value in powRequirementCode message, peer will be disconnected", "peer", p.peer.ID(), "err", err) - return errors.New("invalid value in powRequirementCode message") - } - p.powRequirement = f - case bloomFilterExCode: - var bloom []byte - err := packet.Decode(&bloom) - if err == nil && len(bloom) != BloomFilterSize { - err = fmt.Errorf("wrong bloom filter size %d", len(bloom)) - } - - if err != nil { - log.Warn("failed to decode bloom filter exchange message, peer will be disconnected", "peer", p.peer.ID(), "err", err) - return errors.New("invalid bloom filter exchange message") - } - p.setBloomFilter(bloom) - case p2pMessageCode: - // peer-to-peer message, sent directly to peer bypassing PoW checks, etc. - // this message is not supposed to be forwarded to other peers, and - // therefore might not satisfy the PoW, expiry and other requirements. - // these messages are only accepted from the trusted peer. - if p.trusted { - var envelope Envelope - if err := packet.Decode(&envelope); err != nil { - log.Warn("failed to decode direct message, peer will be disconnected", "peer", p.peer.ID(), "err", err) - return errors.New("invalid direct message") - } - whisper.postEvent(&envelope, true) - } - case p2pRequestCode: - // Must be processed if mail server is implemented. Otherwise ignore. - if whisper.mailServer != nil { - var request Envelope - if err := packet.Decode(&request); err != nil { - log.Warn("failed to decode p2p request message, peer will be disconnected", "peer", p.peer.ID(), "err", err) - return errors.New("invalid p2p request") - } - whisper.mailServer.DeliverMail(p, &request) - } - default: - // New message types might be implemented in the future versions of Whisper. - // For forward compatibility, just ignore. - } - - packet.Discard() - } -} - -// add inserts a new envelope into the message pool to be distributed within the -// whisper network. It also inserts the envelope into the expiration pool at the -// appropriate time-stamp. In case of error, connection should be dropped. -// param isP2P indicates whether the message is peer-to-peer (should not be forwarded). -func (whisper *Whisper) add(envelope *Envelope, isP2P bool) (bool, error) { - now := uint32(time.Now().Unix()) - sent := envelope.Expiry - envelope.TTL - - if sent > now { - if sent-DefaultSyncAllowance > now { - return false, fmt.Errorf("envelope created in the future [%x]", envelope.Hash()) - } - // recalculate PoW, adjusted for the time difference, plus one second for latency - envelope.calculatePoW(sent - now + 1) - } - - if envelope.Expiry < now { - if envelope.Expiry+DefaultSyncAllowance*2 < now { - return false, fmt.Errorf("very old message") - } - log.Debug("expired envelope dropped", "hash", envelope.Hash().Hex()) - return false, nil // drop envelope without error - } - - if uint32(envelope.size()) > whisper.MaxMessageSize() { - return false, fmt.Errorf("huge messages are not allowed [%x]", envelope.Hash()) - } - - if envelope.PoW() < whisper.MinPow() { - // maybe the value was recently changed, and the peers did not adjust yet. - // in this case the previous value is retrieved by MinPowTolerance() - // for a short period of peer synchronization. - if envelope.PoW() < whisper.MinPowTolerance() { - return false, fmt.Errorf("envelope with low PoW received: PoW=%f, hash=[%v]", envelope.PoW(), envelope.Hash().Hex()) - } - } - - if !BloomFilterMatch(whisper.BloomFilter(), envelope.Bloom()) { - // maybe the value was recently changed, and the peers did not adjust yet. - // in this case the previous value is retrieved by BloomFilterTolerance() - // for a short period of peer synchronization. - if !BloomFilterMatch(whisper.BloomFilterTolerance(), envelope.Bloom()) { - return false, fmt.Errorf("envelope does not match bloom filter, hash=[%v], bloom: \n%x \n%x \n%x", - envelope.Hash().Hex(), whisper.BloomFilter(), envelope.Bloom(), envelope.Topic) - } - } - - hash := envelope.Hash() - - whisper.poolMu.Lock() - _, alreadyCached := whisper.envelopes[hash] - if !alreadyCached { - whisper.envelopes[hash] = envelope - if whisper.expirations[envelope.Expiry] == nil { - whisper.expirations[envelope.Expiry] = mapset.NewThreadUnsafeSet() - } - if !whisper.expirations[envelope.Expiry].Contains(hash) { - whisper.expirations[envelope.Expiry].Add(hash) - } - } - whisper.poolMu.Unlock() - - if alreadyCached { - log.Trace("whisper envelope already cached", "hash", envelope.Hash().Hex()) - } else { - log.Trace("cached whisper envelope", "hash", envelope.Hash().Hex()) - whisper.statsMu.Lock() - whisper.stats.memoryUsed += envelope.size() - whisper.statsMu.Unlock() - whisper.postEvent(envelope, isP2P) // notify the local node about the new message - if whisper.mailServer != nil { - whisper.mailServer.Archive(envelope) - } - } - return true, nil -} - -// postEvent queues the message for further processing. -func (whisper *Whisper) postEvent(envelope *Envelope, isP2P bool) { - if isP2P { - whisper.p2pMsgQueue <- envelope - } else { - whisper.checkOverflow() - whisper.messageQueue <- envelope - } -} - -// checkOverflow checks if message queue overflow occurs and reports it if necessary. -func (whisper *Whisper) checkOverflow() { - queueSize := len(whisper.messageQueue) - - if queueSize == messageQueueLimit { - if !whisper.Overflow() { - whisper.settings.Store(overflowIdx, true) - log.Warn("message queue overflow") - } - } else if queueSize <= messageQueueLimit/2 { - if whisper.Overflow() { - whisper.settings.Store(overflowIdx, false) - log.Warn("message queue overflow fixed (back to normal)") - } - } -} - -// processQueue delivers the messages to the watchers during the lifetime of the whisper node. -func (whisper *Whisper) processQueue() { - defer whisper.wg.Done() - var e *Envelope - for { - select { - case <-whisper.quit: - return - - case e = <-whisper.messageQueue: - whisper.filters.NotifyWatchers(e, false) - - case e = <-whisper.p2pMsgQueue: - whisper.filters.NotifyWatchers(e, true) - } - } -} - -// update loops until the lifetime of the whisper node, updating its internal -// state by expiring stale messages from the pool. -func (whisper *Whisper) update() { - defer whisper.wg.Done() - // Start a ticker to check for expirations - expire := time.NewTicker(expirationCycle) - defer expire.Stop() - - // Repeat updates until termination is requested - for { - select { - case <-expire.C: - whisper.expire() - - case <-whisper.quit: - return - } - } -} - -// expire iterates over all the expiration timestamps, removing all stale -// messages from the pools. -func (whisper *Whisper) expire() { - whisper.poolMu.Lock() - defer whisper.poolMu.Unlock() - - whisper.statsMu.Lock() - defer whisper.statsMu.Unlock() - whisper.stats.reset() - now := uint32(time.Now().Unix()) - for expiry, hashSet := range whisper.expirations { - if expiry < now { - // Dump all expired messages and remove timestamp - hashSet.Each(func(v interface{}) bool { - sz := whisper.envelopes[v.(common.Hash)].size() - delete(whisper.envelopes, v.(common.Hash)) - whisper.stats.messagesCleared++ - whisper.stats.memoryCleared += sz - whisper.stats.memoryUsed -= sz - return false - }) - whisper.expirations[expiry].Clear() - delete(whisper.expirations, expiry) - } - } -} - -// Stats returns the whisper node statistics. -func (whisper *Whisper) Stats() Statistics { - whisper.statsMu.Lock() - defer whisper.statsMu.Unlock() - - return whisper.stats -} - -// Envelopes retrieves all the messages currently pooled by the node. -func (whisper *Whisper) Envelopes() []*Envelope { - whisper.poolMu.RLock() - defer whisper.poolMu.RUnlock() - - all := make([]*Envelope, 0, len(whisper.envelopes)) - for _, envelope := range whisper.envelopes { - all = append(all, envelope) - } - return all -} - -// isEnvelopeCached checks if envelope with specific hash has already been received and cached. -func (whisper *Whisper) isEnvelopeCached(hash common.Hash) bool { - whisper.poolMu.Lock() - defer whisper.poolMu.Unlock() - - _, exist := whisper.envelopes[hash] - return exist -} - -// reset resets the node's statistics after each expiry cycle. -func (s *Statistics) reset() { - s.cycles++ - s.totalMessagesCleared += s.messagesCleared - - s.memoryCleared = 0 - s.messagesCleared = 0 -} - -// ValidatePublicKey checks the format of the given public key. -func ValidatePublicKey(k *ecdsa.PublicKey) bool { - return k != nil && k.X != nil && k.Y != nil && k.X.Sign() != 0 && k.Y.Sign() != 0 -} - -// validatePrivateKey checks the format of the given private key. -func validatePrivateKey(k *ecdsa.PrivateKey) bool { - if k == nil || k.D == nil || k.D.Sign() == 0 { - return false - } - return ValidatePublicKey(&k.PublicKey) -} - -// validateDataIntegrity returns false if the data have the wrong or contains all zeros, -// which is the simplest and the most common bug. -func validateDataIntegrity(k []byte, expectedSize int) bool { - if len(k) != expectedSize { - return false - } - if expectedSize > 3 && containsOnlyZeros(k) { - return false - } - return true -} - -// containsOnlyZeros checks if the data contain only zeros. -func containsOnlyZeros(data []byte) bool { - for _, b := range data { - if b != 0 { - return false - } - } - return true -} - -// bytesToUintLittleEndian converts the slice to 64-bit unsigned integer. -func bytesToUintLittleEndian(b []byte) (res uint64) { - mul := uint64(1) - for i := 0; i < len(b); i++ { - res += uint64(b[i]) * mul - mul *= 256 - } - return res -} - -// BytesToUintBigEndian converts the slice to 64-bit unsigned integer. -func BytesToUintBigEndian(b []byte) (res uint64) { - for i := 0; i < len(b); i++ { - res *= 256 - res += uint64(b[i]) - } - return res -} - -// GenerateRandomID generates a random string, which is then returned to be used as a key id -func GenerateRandomID() (id string, err error) { - buf, err := generateSecureRandomData(keyIDSize) - if err != nil { - return "", err - } - if !validateDataIntegrity(buf, keyIDSize) { - return "", fmt.Errorf("error in generateRandomID: crypto/rand failed to generate random data") - } - id = common.Bytes2Hex(buf) - return id, err -} - -func isFullNode(bloom []byte) bool { - if bloom == nil { - return true - } - for _, b := range bloom { - if b != 255 { - return false - } - } - return true -} - -func BloomFilterMatch(filter, sample []byte) bool { - if filter == nil { - return true - } - - for i := 0; i < BloomFilterSize; i++ { - f := filter[i] - s := sample[i] - if (f | s) != f { - return false - } - } - - return true -} - -func addBloom(a, b []byte) []byte { - c := make([]byte, BloomFilterSize) - for i := 0; i < BloomFilterSize; i++ { - c[i] = a[i] | b[i] - } - return c -} - -func StandaloneWhisperService(cfg *Config) *Whisper { - if cfg == nil { - cfg = &DefaultConfig - } - - whisper := &Whisper{ - privateKeys: make(map[string]*ecdsa.PrivateKey), - symKeys: make(map[string][]byte), - envelopes: make(map[common.Hash]*Envelope), - expirations: make(map[uint32]mapset.Set), - peers: make(map[*Peer]struct{}), - messageQueue: make(chan *Envelope, messageQueueLimit), - p2pMsgQueue: make(chan *Envelope, messageQueueLimit), - quit: make(chan struct{}), - syncAllowance: DefaultSyncAllowance, - } - - whisper.filters = NewFilters(whisper) - - whisper.settings.Store(minPowIdx, cfg.MinimumAcceptedPOW) - whisper.settings.Store(maxMsgSizeIdx, cfg.MaxMessageSize) - whisper.settings.Store(overflowIdx, false) - whisper.settings.Store(restrictConnectionBetweenLightClientsIdx, cfg.RestrictConnectionBetweenLightClients) - - // p2p whisper sub protocol handler - whisper.protocol = p2p.Protocol{ - Name: ProtocolName, - Version: uint(ProtocolVersion), - Length: NumberOfMessageCodes, - Run: whisper.HandlePeer, - NodeInfo: func() interface{} { - return map[string]interface{}{ - "version": ProtocolVersionStr, - "maxMessageSize": whisper.MaxMessageSize(), - "minimumPoW": whisper.MinPow(), - } - }, - } - - return whisper -} diff --git a/whisper/whisperv6/whisper_test.go b/whisper/whisperv6/whisper_test.go deleted file mode 100644 index 7fb8f7c1cd..0000000000 --- a/whisper/whisperv6/whisper_test.go +++ /dev/null @@ -1,928 +0,0 @@ -// Copyright 2016 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -package whisperv6 - -import ( - "bytes" - "crypto/ecdsa" - "crypto/sha256" - mrand "math/rand" - "testing" - "time" - - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/node" - "golang.org/x/crypto/pbkdf2" -) - -func TestWhisperBasic(t *testing.T) { - stack, w := newNodeWithWhisper(t) - defer stack.Close() - - shh := w.Protocols()[0] - if shh.Name != ProtocolName { - t.Fatalf("failed Protocol Name: %v.", shh.Name) - } - if uint64(shh.Version) != ProtocolVersion { - t.Fatalf("failed Protocol Version: %v.", shh.Version) - } - if shh.Length != NumberOfMessageCodes { - t.Fatalf("failed Protocol Length: %v.", shh.Length) - } - if shh.Run == nil { - t.Fatal("failed shh.Run.") - } - if uint64(w.Version()) != ProtocolVersion { - t.Fatalf("failed whisper Version: %v.", shh.Version) - } - if w.GetFilter("non-existent") != nil { - t.Fatal("failed GetFilter.") - } - - peerID := make([]byte, 64) - mrand.Read(peerID) - peer, _ := w.getPeer(peerID) - if peer != nil { - t.Fatal("found peer for random key.") - } - if err := w.AllowP2PMessagesFromPeer(peerID); err == nil { - t.Fatal("failed MarkPeerTrusted.") - } - exist := w.HasSymKey("non-existing") - if exist { - t.Fatal("failed HasSymKey.") - } - key, err := w.GetSymKey("non-existing") - if err == nil { - t.Fatalf("failed GetSymKey(non-existing): false positive. key=%v", key) - } - if key != nil { - t.Fatalf("failed GetSymKey: false positive. key=%v", key) - } - mail := w.Envelopes() - if len(mail) != 0 { - t.Fatalf("failed w.Envelopes(). length=%d", len(mail)) - } - - derived := pbkdf2.Key(peerID, nil, 65356, aesKeyLength, sha256.New) - if !validateDataIntegrity(derived, aesKeyLength) { - t.Fatalf("failed validateSymmetricKey with param = %v.", derived) - } - if containsOnlyZeros(derived) { - t.Fatalf("failed containsOnlyZeros with param = %v.", derived) - } - - buf := []byte{0xFF, 0xE5, 0x80, 0x2, 0} - le := bytesToUintLittleEndian(buf) - be := BytesToUintBigEndian(buf) - if le != uint64(0x280e5ff) { - t.Fatalf("failed bytesToIntLittleEndian: %d.", le) - } - if be != uint64(0xffe5800200) { - t.Fatalf("failed BytesToIntBigEndian: %d.", be) - } - - id, err := w.NewKeyPair() - if err != nil { - t.Fatalf("failed to generate new key pair: %v.", err) - } - pk, err := w.GetPrivateKey(id) - if err != nil { - t.Fatalf("failed to retrieve new key pair: %v.", err) - } - if !validatePrivateKey(pk) { - t.Fatalf("failed validatePrivateKey: %v.", pk) - } - if !ValidatePublicKey(&pk.PublicKey) { - t.Fatalf("failed ValidatePublicKey: %v.", pk) - } -} - -func TestWhisperAsymmetricKeyImport(t *testing.T) { - stack, w := newNodeWithWhisper(t) - defer stack.Close() - - var privateKeys []*ecdsa.PrivateKey - for i := 0; i < 50; i++ { - id, err := w.NewKeyPair() - if err != nil { - t.Fatalf("could not generate key: %v", err) - } - - pk, err := w.GetPrivateKey(id) - if err != nil { - t.Fatalf("could not export private key: %v", err) - } - - privateKeys = append(privateKeys, pk) - - if !w.DeleteKeyPair(id) { - t.Fatal("could not delete private key") - } - } - - for _, pk := range privateKeys { - if _, err := w.AddKeyPair(pk); err != nil { - t.Fatalf("could not import private key: %v", err) - } - } -} - -func TestWhisperIdentityManagement(t *testing.T) { - stack, w := newNodeWithWhisper(t) - defer stack.Close() - - id1, err := w.NewKeyPair() - if err != nil { - t.Fatalf("failed to generate new key pair: %s.", err) - } - id2, err := w.NewKeyPair() - if err != nil { - t.Fatalf("failed to generate new key pair: %s.", err) - } - pk1, err := w.GetPrivateKey(id1) - if err != nil { - t.Fatalf("failed to retrieve the key pair: %s.", err) - } - pk2, err := w.GetPrivateKey(id2) - if err != nil { - t.Fatalf("failed to retrieve the key pair: %s.", err) - } - - if !w.HasKeyPair(id1) { - t.Fatal("failed HasIdentity(pk1).") - } - if !w.HasKeyPair(id2) { - t.Fatal("failed HasIdentity(pk2).") - } - if pk1 == nil { - t.Fatal("failed GetIdentity(pk1).") - } - if pk2 == nil { - t.Fatal("failed GetIdentity(pk2).") - } - - if !validatePrivateKey(pk1) { - t.Fatal("pk1 is invalid.") - } - if !validatePrivateKey(pk2) { - t.Fatal("pk2 is invalid.") - } - - // Delete one identity - done := w.DeleteKeyPair(id1) - if !done { - t.Fatal("failed to delete id1.") - } - pk1, err = w.GetPrivateKey(id1) - if err == nil { - t.Fatalf("retrieve the key pair: false positive. key=%v", pk1) - } - pk2, err = w.GetPrivateKey(id2) - if err != nil { - t.Fatalf("failed to retrieve the key pair: %s.", err) - } - if w.HasKeyPair(id1) { - t.Fatal("failed DeleteIdentity(pub1): still exist.") - } - if !w.HasKeyPair(id2) { - t.Fatal("failed DeleteIdentity(pub1): pub2 does not exist.") - } - if pk1 != nil { - t.Fatal("failed DeleteIdentity(pub1): first key still exist.") - } - if pk2 == nil { - t.Fatal("failed DeleteIdentity(pub1): second key does not exist.") - } - - // Delete again non-existing identity - done = w.DeleteKeyPair(id1) - if done { - t.Fatal("delete id1: false positive.") - } - pk1, err = w.GetPrivateKey(id1) - if err == nil { - t.Fatalf("retrieve the key pair: false positive. key=%v", pk1) - } - pk2, err = w.GetPrivateKey(id2) - if err != nil { - t.Fatalf("failed to retrieve the key pair: %s.", err) - } - if w.HasKeyPair(id1) { - t.Fatal("failed delete non-existing identity: exist.") - } - if !w.HasKeyPair(id2) { - t.Fatal("failed delete non-existing identity: pub2 does not exist.") - } - if pk1 != nil { - t.Fatalf("failed delete non-existing identity: first key exist. key=%v", pk1) - } - if pk2 == nil { - t.Fatal("failed delete non-existing identity: second key does not exist.") - } - - // Delete second identity - done = w.DeleteKeyPair(id2) - if !done { - t.Fatal("failed to delete id2.") - } - pk1, err = w.GetPrivateKey(id1) - if err == nil { - t.Fatalf("retrieve the key pair: false positive. key=%v", pk1) - } - pk2, err = w.GetPrivateKey(id2) - if err == nil { - t.Fatalf("retrieve the key pair: false positive. key=%v", pk2) - } - if w.HasKeyPair(id1) { - t.Fatal("failed delete second identity: first identity exist.") - } - if w.HasKeyPair(id2) { - t.Fatal("failed delete second identity: still exist.") - } - if pk1 != nil { - t.Fatalf("failed delete second identity: first key exist. key=%v", pk1) - } - if pk2 != nil { - t.Fatalf("failed delete second identity: second key exist. key=%v", pk2) - } -} - -func TestWhisperSymKeyManagement(t *testing.T) { - InitSingleTest() - var ( - k1, k2 []byte - id2 = string("arbitrary-string-2") - ) - - stack, w := newNodeWithWhisper(t) - defer stack.Close() - - id1, err := w.GenerateSymKey() - if err != nil { - t.Fatalf("failed GenerateSymKey with seed %d: %s.", seed, err) - } - - k1, err = w.GetSymKey(id1) - if err != nil { - t.Fatalf("failed GetSymKey(id1). err=%v", err) - } - k2, err = w.GetSymKey(id2) - if err == nil { - t.Fatalf("failed GetSymKey(id2): false positive. key=%v", k2) - } - if !w.HasSymKey(id1) { - t.Fatal("failed HasSymKey(id1).") - } - if w.HasSymKey(id2) { - t.Fatal("failed HasSymKey(id2): false positive.") - } - if k1 == nil { - t.Fatal("first key does not exist.") - } - if k2 != nil { - t.Fatalf("second key still exist. key=%v", k2) - } - - // add existing id, nothing should change - randomKey := make([]byte, aesKeyLength) - mrand.Read(randomKey) - id1, err = w.AddSymKeyDirect(randomKey) - if err != nil { - t.Fatalf("failed AddSymKey with seed %d: %s.", seed, err) - } - - k1, err = w.GetSymKey(id1) - if err != nil { - t.Fatalf("failed w.GetSymKey(id1). err=%v", err) - } - k2, err = w.GetSymKey(id2) - if err == nil { - t.Fatalf("failed w.GetSymKey(id2): false positive. key=%v", k2) - } - if !w.HasSymKey(id1) { - t.Fatal("failed w.HasSymKey(id1).") - } - if w.HasSymKey(id2) { - t.Fatal("failed w.HasSymKey(id2): false positive.") - } - if k1 == nil { - t.Fatal("first key does not exist.") - } - if !bytes.Equal(k1, randomKey) { - t.Fatal("k1 != randomKey.") - } - if k2 != nil { - t.Fatalf("second key already exist. key=%v", k2) - } - - id2, err = w.AddSymKeyDirect(randomKey) - if err != nil { - t.Fatalf("failed AddSymKey(id2) with seed %d: %s.", seed, err) - } - k1, err = w.GetSymKey(id1) - if err != nil { - t.Fatalf("failed w.GetSymKey(id1). err=%v", err) - } - k2, err = w.GetSymKey(id2) - if err != nil { - t.Fatalf("failed w.GetSymKey(id2). err=%v", err) - } - if !w.HasSymKey(id1) { - t.Fatal("HasSymKey(id1) failed.") - } - if !w.HasSymKey(id2) { - t.Fatal("HasSymKey(id2) failed.") - } - if k1 == nil { - t.Fatal("k1 does not exist.") - } - if k2 == nil { - t.Fatal("k2 does not exist.") - } - if !bytes.Equal(k1, k2) { - t.Fatal("k1 != k2.") - } - if !bytes.Equal(k1, randomKey) { - t.Fatal("k1 != randomKey.") - } - if len(k1) != aesKeyLength { - t.Fatalf("wrong length of k1. length=%d", len(k1)) - } - if len(k2) != aesKeyLength { - t.Fatalf("wrong length of k2. length=%d", len(k2)) - } - - w.DeleteSymKey(id1) - k1, err = w.GetSymKey(id1) - if err == nil { - t.Fatal("failed w.GetSymKey(id1): false positive.") - } - if k1 != nil { - t.Fatalf("failed GetSymKey(id1): false positive. key=%v", k1) - } - k2, err = w.GetSymKey(id2) - if err != nil { - t.Fatalf("failed w.GetSymKey(id2). err=%v", err) - } - if w.HasSymKey(id1) { - t.Fatal("failed to delete first key: still exist.") - } - if !w.HasSymKey(id2) { - t.Fatal("failed to delete first key: second key does not exist.") - } - if k2 == nil { - t.Fatal("failed to delete first key: second key is nil.") - } - - w.DeleteSymKey(id1) - w.DeleteSymKey(id2) - k1, err = w.GetSymKey(id1) - if err == nil { - t.Fatalf("failed w.GetSymKey(id1): false positive. key=%v", k1) - } - k2, err = w.GetSymKey(id2) - if err == nil { - t.Fatalf("failed w.GetSymKey(id2): false positive. key=%v", k2) - } - if k1 != nil || k2 != nil { - t.Fatal("k1 or k2 is not nil") - } - if w.HasSymKey(id1) { - t.Fatal("failed to delete second key: first key exist.") - } - if w.HasSymKey(id2) { - t.Fatal("failed to delete second key: still exist.") - } - if k1 != nil { - t.Fatal("failed to delete second key: first key is not nil.") - } - if k2 != nil { - t.Fatal("failed to delete second key: second key is not nil.") - } - - randomKey = make([]byte, aesKeyLength+1) - mrand.Read(randomKey) - _, err = w.AddSymKeyDirect(randomKey) - if err == nil { - t.Fatalf("added the key with wrong size, seed %d.", seed) - } - - const password = "arbitrary data here" - id1, err = w.AddSymKeyFromPassword(password) - if err != nil { - t.Fatalf("failed AddSymKeyFromPassword(id1) with seed %d: %s.", seed, err) - } - id2, err = w.AddSymKeyFromPassword(password) - if err != nil { - t.Fatalf("failed AddSymKeyFromPassword(id2) with seed %d: %s.", seed, err) - } - k1, err = w.GetSymKey(id1) - if err != nil { - t.Fatalf("failed w.GetSymKey(id1). err=%v", err) - } - k2, err = w.GetSymKey(id2) - if err != nil { - t.Fatalf("failed w.GetSymKey(id2). err=%v", err) - } - if !w.HasSymKey(id1) { - t.Fatal("HasSymKey(id1) failed.") - } - if !w.HasSymKey(id2) { - t.Fatal("HasSymKey(id2) failed.") - } - if !validateDataIntegrity(k2, aesKeyLength) { - t.Fatal("key validation failed.") - } - if !bytes.Equal(k1, k2) { - t.Fatal("k1 != k2.") - } -} - -func TestExpiry(t *testing.T) { - InitSingleTest() - - stack, w := newNodeWithWhisper(t) - defer stack.Close() - - w.SetMinimumPowTest(0.0000001) - defer w.SetMinimumPowTest(DefaultMinimumPoW) - w.Start() - - params, err := generateMessageParams() - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - params.TTL = 1 - - messagesCount := 5 - - // Send a few messages one after another. Due to low PoW and expiration buckets - // with one second resolution, it covers a case when there are multiple items - // in a single expiration bucket. - for i := 0; i < messagesCount; i++ { - msg, err := NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - env, err := msg.Wrap(params) - if err != nil { - t.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - - err = w.Send(env) - if err != nil { - t.Fatalf("failed to send envelope with seed %d: %s.", seed, err) - } - } - - // wait till received or timeout - var received, expired bool - ticker := time.NewTicker(100 * time.Millisecond) - defer ticker.Stop() - for j := 0; j < 20; j++ { - <-ticker.C - if len(w.Envelopes()) == messagesCount { - received = true - break - } - } - - if !received { - t.Fatalf("did not receive the sent envelope, seed: %d.", seed) - } - - // wait till expired or timeout - for j := 0; j < 20; j++ { - <-ticker.C - if len(w.Envelopes()) == 0 { - expired = true - break - } - } - - if !expired { - t.Fatalf("expire failed, seed: %d.", seed) - } -} - -func TestCustomization(t *testing.T) { - InitSingleTest() - - stack, w := newNodeWithWhisper(t) - defer stack.Close() - - defer w.SetMinimumPowTest(DefaultMinimumPoW) - defer w.SetMaxMessageSize(DefaultMaxMessageSize) - w.Start() - - const smallPoW = 0.00001 - - f, err := generateFilter(t, true) - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - params, err := generateMessageParams() - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - - params.KeySym = f.KeySym - params.Topic = BytesToTopic(f.Topics[2]) - params.PoW = smallPoW - params.TTL = 3600 * 24 // one day - msg, err := NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - env, err := msg.Wrap(params) - if err != nil { - t.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - - err = w.Send(env) - if err == nil { - t.Fatalf("successfully sent envelope with PoW %.06f, false positive (seed %d).", env.PoW(), seed) - } - - w.SetMinimumPowTest(smallPoW / 2) - err = w.Send(env) - if err != nil { - t.Fatalf("failed to send envelope with seed %d: %s.", seed, err) - } - - params.TTL++ - msg, err = NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - env, err = msg.Wrap(params) - if err != nil { - t.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - w.SetMaxMessageSize(uint32(env.size() - 1)) - err = w.Send(env) - if err == nil { - t.Fatalf("successfully sent oversized envelope (seed %d): false positive.", seed) - } - - w.SetMaxMessageSize(DefaultMaxMessageSize) - err = w.Send(env) - if err != nil { - t.Fatalf("failed to send second envelope with seed %d: %s.", seed, err) - } - - // wait till received or timeout - var received bool - ticker := time.NewTicker(100 * time.Millisecond) - defer ticker.Stop() - for j := 0; j < 20; j++ { - <-ticker.C - if len(w.Envelopes()) > 1 { - received = true - break - } - } - - if !received { - t.Fatalf("did not receive the sent envelope, seed: %d.", seed) - } - - // check w.messages() - _, err = w.Subscribe(f) - if err != nil { - t.Fatalf("failed subscribe with seed %d: %s.", seed, err) - } - <-ticker.C - mail := f.Retrieve() - if len(mail) > 0 { - t.Fatalf("received premature mail. mail=%v", mail) - } -} - -func TestSymmetricSendCycle(t *testing.T) { - InitSingleTest() - - stack, w := newNodeWithWhisper(t) - defer stack.Close() - - defer w.SetMinimumPowTest(DefaultMinimumPoW) - defer w.SetMaxMessageSize(DefaultMaxMessageSize) - w.Start() - - filter1, err := generateFilter(t, true) - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - filter1.PoW = DefaultMinimumPoW - - // Copy the first filter since some of its fields - // are randomly gnerated. - filter2 := &Filter{ - KeySym: filter1.KeySym, - Topics: filter1.Topics, - PoW: filter1.PoW, - AllowP2P: filter1.AllowP2P, - Messages: make(map[common.Hash]*ReceivedMessage), - } - - params, err := generateMessageParams() - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - - filter1.Src = ¶ms.Src.PublicKey - filter2.Src = ¶ms.Src.PublicKey - - params.KeySym = filter1.KeySym - params.Topic = BytesToTopic(filter1.Topics[2]) - params.PoW = filter1.PoW - params.WorkTime = 10 - params.TTL = 50 - msg, err := NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - env, err := msg.Wrap(params) - if err != nil { - t.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - - _, err = w.Subscribe(filter1) - if err != nil { - t.Fatalf("failed subscribe 1 with seed %d: %s.", seed, err) - } - - _, err = w.Subscribe(filter2) - if err != nil { - t.Fatalf("failed subscribe 2 with seed %d: %s.", seed, err) - } - - err = w.Send(env) - if err != nil { - t.Fatalf("Failed sending envelope with PoW %.06f (seed %d): %s", env.PoW(), seed, err) - } - - // wait till received or timeout - var received bool - ticker := time.NewTicker(10 * time.Millisecond) - defer ticker.Stop() - for j := 0; j < 200; j++ { - <-ticker.C - if len(w.Envelopes()) > 0 { - received = true - break - } - } - - if !received { - t.Fatalf("did not receive the sent envelope, seed: %d.", seed) - } - - // check w.messages() - <-ticker.C - mail1 := filter1.Retrieve() - mail2 := filter2.Retrieve() - if len(mail2) == 0 { - t.Fatal("did not receive any email for filter 2.") - } - if len(mail1) == 0 { - t.Fatal("did not receive any email for filter 1.") - } - -} - -func TestSymmetricSendWithoutAKey(t *testing.T) { - InitSingleTest() - - stack, w := newNodeWithWhisper(t) - defer stack.Close() - - defer w.SetMinimumPowTest(DefaultMinimumPoW) - defer w.SetMaxMessageSize(DefaultMaxMessageSize) - w.Start() - - filter, err := generateFilter(t, true) - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - filter.PoW = DefaultMinimumPoW - - params, err := generateMessageParams() - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - - filter.Src = nil - - params.KeySym = filter.KeySym - params.Topic = BytesToTopic(filter.Topics[2]) - params.PoW = filter.PoW - params.WorkTime = 10 - params.TTL = 50 - msg, err := NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - env, err := msg.Wrap(params) - if err != nil { - t.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - - _, err = w.Subscribe(filter) - if err != nil { - t.Fatalf("failed subscribe 1 with seed %d: %s.", seed, err) - } - - err = w.Send(env) - if err != nil { - t.Fatalf("Failed sending envelope with PoW %.06f (seed %d): %s", env.PoW(), seed, err) - } - - // wait till received or timeout - var received bool - ticker := time.NewTicker(10 * time.Millisecond) - defer ticker.Stop() - for j := 0; j < 200; j++ { - <-ticker.C - if len(w.Envelopes()) > 0 { - received = true - break - } - } - - if !received { - t.Fatalf("did not receive the sent envelope, seed: %d.", seed) - } - - // check w.messages() - <-ticker.C - mail := filter.Retrieve() - if len(mail) == 0 { - t.Fatal("did not receive message in spite of not setting a public key") - } -} - -func TestSymmetricSendKeyMismatch(t *testing.T) { - InitSingleTest() - - stack, w := newNodeWithWhisper(t) - defer stack.Close() - - defer w.SetMinimumPowTest(DefaultMinimumPoW) - defer w.SetMaxMessageSize(DefaultMaxMessageSize) - w.Start() - - filter, err := generateFilter(t, true) - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - filter.PoW = DefaultMinimumPoW - - params, err := generateMessageParams() - if err != nil { - t.Fatalf("failed generateMessageParams with seed %d: %s.", seed, err) - } - - params.KeySym = filter.KeySym - params.Topic = BytesToTopic(filter.Topics[2]) - params.PoW = filter.PoW - params.WorkTime = 10 - params.TTL = 50 - msg, err := NewSentMessage(params) - if err != nil { - t.Fatalf("failed to create new message with seed %d: %s.", seed, err) - } - env, err := msg.Wrap(params) - if err != nil { - t.Fatalf("failed Wrap with seed %d: %s.", seed, err) - } - - _, err = w.Subscribe(filter) - if err != nil { - t.Fatalf("failed subscribe 1 with seed %d: %s.", seed, err) - } - - err = w.Send(env) - if err != nil { - t.Fatalf("Failed sending envelope with PoW %.06f (seed %d): %s", env.PoW(), seed, err) - } - - // wait till received or timeout - var received bool - ticker := time.NewTicker(10 * time.Millisecond) - defer ticker.Stop() - for j := 0; j < 200; j++ { - <-ticker.C - if len(w.Envelopes()) > 0 { - received = true - break - } - } - - if !received { - t.Fatalf("did not receive the sent envelope, seed: %d.", seed) - } - - // check w.messages() - <-ticker.C - mail := filter.Retrieve() - if len(mail) > 0 { - t.Fatalf("received a message when keys weren't matching. message=%v", mail) - } -} - -func TestBloom(t *testing.T) { - topic := TopicType{0, 0, 255, 6} - b := TopicToBloom(topic) - x := make([]byte, BloomFilterSize) - x[0] = byte(1) - x[32] = byte(1) - x[BloomFilterSize-1] = byte(128) - if !BloomFilterMatch(x, b) || !BloomFilterMatch(b, x) { - t.Fatal("bloom filter does not match the mask") - } - - _, err := mrand.Read(b) - if err != nil { - t.Fatalf("math rand error. err=%v", err) - } - _, err = mrand.Read(x) - if err != nil { - t.Fatalf("math rand error. err=%v", err) - } - if !BloomFilterMatch(b, b) { - t.Fatal("bloom filter does not match self") - } - x = addBloom(x, b) - if !BloomFilterMatch(x, b) { - t.Fatal("bloom filter does not match combined bloom") - } - if !isFullNode(nil) { - t.Fatal("isFullNode did not recognize nil as full node") - } - x[17] = 254 - if isFullNode(x) { - t.Fatal("isFullNode false positive") - } - for i := 0; i < BloomFilterSize; i++ { - b[i] = byte(255) - } - if !isFullNode(b) { - t.Fatal("isFullNode false negative") - } - if BloomFilterMatch(x, b) { - t.Fatal("bloomFilterMatch false positive") - } - if !BloomFilterMatch(b, x) { - t.Fatal("bloomFilterMatch false negative") - } - - stack, w := newNodeWithWhisper(t) - defer stack.Close() - - f := w.BloomFilter() - if f != nil { - t.Fatal("wrong bloom on creation") - } - err = w.SetBloomFilter(x) - if err != nil { - t.Fatalf("failed to set bloom filter: %v", err) - } - f = w.BloomFilter() - if !BloomFilterMatch(f, x) || !BloomFilterMatch(x, f) { - t.Fatal("retireved wrong bloom filter") - } -} - -// newNodeWithWhisper creates a new node using a default config and -// creates and registers a new Whisper service on it. -func newNodeWithWhisper(t *testing.T) (*node.Node, *Whisper) { - stack, err := node.New(&node.DefaultConfig) - if err != nil { - t.Fatalf("could not create new node: %v", err) - } - w, err := New(stack, &DefaultConfig) - if err != nil { - t.Fatalf("could not create new whisper service: %v", err) - } - err = stack.Start() - if err != nil { - t.Fatalf("could not start node: %v", err) - } - return stack, w -}