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authorobscuren <geffobscura@gmail.com>2014-10-31 21:53:42 +0800
committerobscuren <geffobscura@gmail.com>2014-10-31 21:53:42 +0800
commit4914a78c8c650d7fc74570f25a682598aaeb6973 (patch)
treeeca4eef360d5202d51d5d8766072848ebcb185e3 /ethwire
parentaf34749a6b47ff8f9b4cb55d9ea65e1235d63b68 (diff)
downloadgo-tangerine-4914a78c8c650d7fc74570f25a682598aaeb6973.tar.gz
go-tangerine-4914a78c8c650d7fc74570f25a682598aaeb6973.tar.zst
go-tangerine-4914a78c8c650d7fc74570f25a682598aaeb6973.zip
ethwire => wire
Diffstat (limited to 'ethwire')
-rw-r--r--ethwire/.gitignore12
-rw-r--r--ethwire/README.md36
-rw-r--r--ethwire/client_identity.go56
-rw-r--r--ethwire/client_identity_test.go30
-rw-r--r--ethwire/messages2.go199
-rw-r--r--ethwire/messaging.go179
6 files changed, 0 insertions, 512 deletions
diff --git a/ethwire/.gitignore b/ethwire/.gitignore
deleted file mode 100644
index f725d58d1..000000000
--- a/ethwire/.gitignore
+++ /dev/null
@@ -1,12 +0,0 @@
-# See http://help.github.com/ignore-files/ for more about ignoring files.
-#
-# If you find yourself ignoring temporary files generated by your text editor
-# or operating system, you probably want to add a global ignore instead:
-# git config --global core.excludesfile ~/.gitignore_global
-
-/tmp
-*/**/*un~
-*un~
-.DS_Store
-*/**/.DS_Store
-
diff --git a/ethwire/README.md b/ethwire/README.md
deleted file mode 100644
index 7f63688b3..000000000
--- a/ethwire/README.md
+++ /dev/null
@@ -1,36 +0,0 @@
-# ethwire
-
-The ethwire package contains the ethereum wire protocol. The ethwire
-package is required to write and read from the ethereum network.
-
-# Installation
-
-`go get github.com/ethereum/ethwire-go`
-
-# Messaging overview
-
-The Ethereum Wire protocol defines the communication between the nodes
-running Ethereum. Further reader reading can be done on the
-[Wiki](http://wiki.ethereum.org/index.php/Wire_Protocol).
-
-# Reading Messages
-
-```go
-// Read and validate the next eth message from the provided connection.
-// returns a error message with the details.
-msg, err := ethwire.ReadMessage(conn)
-if err != nil {
- // Handle error
-}
-```
-
-# Writing Messages
-
-```go
-// Constructs a message which can be interpreted by the eth network.
-// Write the inventory to network
-err := ethwire.WriteMessage(conn, &Msg{
- Type: ethwire.MsgInvTy,
- Data : []interface{}{...},
-})
-```
diff --git a/ethwire/client_identity.go b/ethwire/client_identity.go
deleted file mode 100644
index ceaa9fe83..000000000
--- a/ethwire/client_identity.go
+++ /dev/null
@@ -1,56 +0,0 @@
-package ethwire
-
-import (
- "fmt"
- "runtime"
-)
-
-// should be used in Peer handleHandshake, incorporate Caps, ProtocolVersion, Pubkey etc.
-type ClientIdentity interface {
- String() string
-}
-
-type SimpleClientIdentity struct {
- clientIdentifier string
- version string
- customIdentifier string
- os string
- implementation string
-}
-
-func NewSimpleClientIdentity(clientIdentifier string, version string, customIdentifier string) *SimpleClientIdentity {
- clientIdentity := &SimpleClientIdentity{
- clientIdentifier: clientIdentifier,
- version: version,
- customIdentifier: customIdentifier,
- os: runtime.GOOS,
- implementation: runtime.Version(),
- }
-
- return clientIdentity
-}
-
-func (c *SimpleClientIdentity) init() {
-}
-
-func (c *SimpleClientIdentity) String() string {
- var id string
- if len(c.customIdentifier) > 0 {
- id = "/" + c.customIdentifier
- }
-
- return fmt.Sprintf("%s/v%s%s/%s/%s",
- c.clientIdentifier,
- c.version,
- id,
- c.os,
- c.implementation)
-}
-
-func (c *SimpleClientIdentity) SetCustomIdentifier(customIdentifier string) {
- c.customIdentifier = customIdentifier
-}
-
-func (c *SimpleClientIdentity) GetCustomIdentifier() string {
- return c.customIdentifier
-}
diff --git a/ethwire/client_identity_test.go b/ethwire/client_identity_test.go
deleted file mode 100644
index 1724fe57b..000000000
--- a/ethwire/client_identity_test.go
+++ /dev/null
@@ -1,30 +0,0 @@
-package ethwire
-
-import (
- "fmt"
- "runtime"
- "testing"
-)
-
-func TestClientIdentity(t *testing.T) {
- clientIdentity := NewSimpleClientIdentity("Ethereum(G)", "0.5.16", "test")
- clientString := clientIdentity.String()
- expected := fmt.Sprintf("Ethereum(G)/v0.5.16/test/%s/%s", runtime.GOOS, runtime.Version())
- if clientString != expected {
- t.Errorf("Expected clientIdentity to be %q, got %q", expected, clientString)
- }
- customIdentifier := clientIdentity.GetCustomIdentifier()
- if customIdentifier != "test" {
- t.Errorf("Expected clientIdentity.GetCustomIdentifier() to be 'test', got %q", customIdentifier)
- }
- clientIdentity.SetCustomIdentifier("test2")
- customIdentifier = clientIdentity.GetCustomIdentifier()
- if customIdentifier != "test2" {
- t.Errorf("Expected clientIdentity.GetCustomIdentifier() to be 'test2', got %q", customIdentifier)
- }
- clientString = clientIdentity.String()
- expected = fmt.Sprintf("Ethereum(G)/v0.5.16/test2/%s/%s", runtime.GOOS, runtime.Version())
- if clientString != expected {
- t.Errorf("Expected clientIdentity to be %q, got %q", expected, clientString)
- }
-}
diff --git a/ethwire/messages2.go b/ethwire/messages2.go
deleted file mode 100644
index ebbc7c912..000000000
--- a/ethwire/messages2.go
+++ /dev/null
@@ -1,199 +0,0 @@
-package ethwire
-
-import (
- "bytes"
- "errors"
- "fmt"
- "net"
- "time"
-
- "github.com/ethereum/go-ethereum/ethutil"
-)
-
-// The connection object allows you to set up a connection to the Ethereum network.
-// The Connection object takes care of all encoding and sending objects properly over
-// the network.
-type Connection struct {
- conn net.Conn
- nTimeout time.Duration
- pendingMessages Messages
-}
-
-// Create a new connection to the Ethereum network
-func New(conn net.Conn) *Connection {
- return &Connection{conn: conn, nTimeout: 500}
-}
-
-// Read, reads from the network. It will block until the next message is received.
-func (self *Connection) Read() *Msg {
- if len(self.pendingMessages) == 0 {
- self.readMessages()
- }
-
- ret := self.pendingMessages[0]
- self.pendingMessages = self.pendingMessages[1:]
-
- return ret
-
-}
-
-// Write to the Ethereum network specifying the type of the message and
-// the data. Data can be of type RlpEncodable or []interface{}. Returns
-// nil or if something went wrong an error.
-func (self *Connection) Write(typ MsgType, v ...interface{}) error {
- var pack []byte
-
- slice := [][]interface{}{[]interface{}{byte(typ)}}
- for _, value := range v {
- if encodable, ok := value.(ethutil.RlpEncodeDecode); ok {
- slice = append(slice, encodable.RlpValue())
- } else if raw, ok := value.([]interface{}); ok {
- slice = append(slice, raw)
- } else {
- panic(fmt.Sprintf("Unable to 'write' object of type %T", value))
- }
- }
-
- // Encode the type and the (RLP encoded) data for sending over the wire
- encoded := ethutil.NewValue(slice).Encode()
- payloadLength := ethutil.NumberToBytes(uint32(len(encoded)), 32)
-
- // Write magic token and payload length (first 8 bytes)
- pack = append(MagicToken, payloadLength...)
- pack = append(pack, encoded...)
-
- // Write to the connection
- _, err := self.conn.Write(pack)
- if err != nil {
- return err
- }
-
- return nil
-}
-
-func (self *Connection) readMessage(data []byte) (msg *Msg, remaining []byte, done bool, err error) {
- if len(data) == 0 {
- return nil, nil, true, nil
- }
-
- if len(data) <= 8 {
- return nil, remaining, false, errors.New("Invalid message")
- }
-
- // Check if the received 4 first bytes are the magic token
- if bytes.Compare(MagicToken, data[:4]) != 0 {
- return nil, nil, false, fmt.Errorf("MagicToken mismatch. Received %v", data[:4])
- }
-
- messageLength := ethutil.BytesToNumber(data[4:8])
- remaining = data[8+messageLength:]
- if int(messageLength) > len(data[8:]) {
- return nil, nil, false, fmt.Errorf("message length %d, expected %d", len(data[8:]), messageLength)
- }
-
- message := data[8 : 8+messageLength]
- decoder := ethutil.NewValueFromBytes(message)
- // Type of message
- t := decoder.Get(0).Uint()
- // Actual data
- d := decoder.SliceFrom(1)
-
- msg = &Msg{
- Type: MsgType(t),
- Data: d,
- }
-
- return
-}
-
-// The basic message reader waits for data on the given connection, decoding
-// and doing a few sanity checks such as if there's a data type and
-// unmarhals the given data
-func (self *Connection) readMessages() (err error) {
- // The recovering function in case anything goes horribly wrong
- defer func() {
- if r := recover(); r != nil {
- err = fmt.Errorf("ethwire.ReadMessage error: %v", r)
- }
- }()
-
- // Buff for writing network message to
- //buff := make([]byte, 1440)
- var buff []byte
- var totalBytes int
- for {
- // Give buffering some time
- self.conn.SetReadDeadline(time.Now().Add(self.nTimeout * time.Millisecond))
- // Create a new temporarily buffer
- b := make([]byte, 1440)
- // Wait for a message from this peer
- n, _ := self.conn.Read(b)
- if err != nil && n == 0 {
- if err.Error() != "EOF" {
- fmt.Println("err now", err)
- return err
- } else {
- break
- }
-
- // Messages can't be empty
- } else if n == 0 {
- break
- }
-
- buff = append(buff, b[:n]...)
- totalBytes += n
- }
-
- // Reslice buffer
- buff = buff[:totalBytes]
- msg, remaining, done, err := self.readMessage(buff)
- for ; done != true; msg, remaining, done, err = self.readMessage(remaining) {
- //log.Println("rx", msg)
-
- if msg != nil {
- self.pendingMessages = append(self.pendingMessages, msg)
- }
- }
-
- return
-}
-
-func ReadMessage(data []byte) (msg *Msg, remaining []byte, done bool, err error) {
- if len(data) == 0 {
- return nil, nil, true, nil
- }
-
- if len(data) <= 8 {
- return nil, remaining, false, errors.New("Invalid message")
- }
-
- // Check if the received 4 first bytes are the magic token
- if bytes.Compare(MagicToken, data[:4]) != 0 {
- return nil, nil, false, fmt.Errorf("MagicToken mismatch. Received %v", data[:4])
- }
-
- messageLength := ethutil.BytesToNumber(data[4:8])
- remaining = data[8+messageLength:]
- if int(messageLength) > len(data[8:]) {
- return nil, nil, false, fmt.Errorf("message length %d, expected %d", len(data[8:]), messageLength)
- }
-
- message := data[8 : 8+messageLength]
- decoder := ethutil.NewValueFromBytes(message)
- // Type of message
- t := decoder.Get(0).Uint()
- // Actual data
- d := decoder.SliceFrom(1)
-
- msg = &Msg{
- Type: MsgType(t),
- Data: d,
- }
-
- return
-}
-
-func bufferedRead(conn net.Conn) ([]byte, error) {
- return nil, nil
-}
diff --git a/ethwire/messaging.go b/ethwire/messaging.go
deleted file mode 100644
index f1757f40f..000000000
--- a/ethwire/messaging.go
+++ /dev/null
@@ -1,179 +0,0 @@
-// Package ethwire provides low level access to the Ethereum network and allows
-// you to broadcast data over the network.
-package ethwire
-
-import (
- "bytes"
- "fmt"
- "net"
- "time"
-
- "github.com/ethereum/go-ethereum/ethutil"
-)
-
-// Connection interface describing the methods required to implement the wire protocol.
-type Conn interface {
- Write(typ MsgType, v ...interface{}) error
- Read() *Msg
-}
-
-// The magic token which should be the first 4 bytes of every message and can be used as separator between messages.
-var MagicToken = []byte{34, 64, 8, 145}
-
-type MsgType byte
-
-const (
- // Values are given explicitly instead of by iota because these values are
- // defined by the wire protocol spec; it is easier for humans to ensure
- // correctness when values are explicit.
- MsgHandshakeTy = 0x00
- MsgDiscTy = 0x01
- MsgPingTy = 0x02
- MsgPongTy = 0x03
- MsgGetPeersTy = 0x04
- MsgPeersTy = 0x05
-
- MsgStatusTy = 0x10
- //MsgGetTxsTy = 0x11
- MsgTxTy = 0x12
- MsgGetBlockHashesTy = 0x13
- MsgBlockHashesTy = 0x14
- MsgGetBlocksTy = 0x15
- MsgBlockTy = 0x16
- MsgNewBlockTy = 0x17
-)
-
-var msgTypeToString = map[MsgType]string{
- MsgHandshakeTy: "Handshake",
- MsgDiscTy: "Disconnect",
- MsgPingTy: "Ping",
- MsgPongTy: "Pong",
- MsgGetPeersTy: "Get peers",
- MsgStatusTy: "Status",
- MsgPeersTy: "Peers",
- MsgTxTy: "Transactions",
- MsgBlockTy: "Blocks",
- //MsgGetTxsTy: "Get Txs",
- MsgGetBlockHashesTy: "Get block hashes",
- MsgBlockHashesTy: "Block hashes",
- MsgGetBlocksTy: "Get blocks",
-}
-
-func (mt MsgType) String() string {
- return msgTypeToString[mt]
-}
-
-type Msg struct {
- Type MsgType // Specifies how the encoded data should be interpreted
- //Data []byte
- Data *ethutil.Value
-}
-
-func NewMessage(msgType MsgType, data interface{}) *Msg {
- return &Msg{
- Type: msgType,
- Data: ethutil.NewValue(data),
- }
-}
-
-type Messages []*Msg
-
-// The basic message reader waits for data on the given connection, decoding
-// and doing a few sanity checks such as if there's a data type and
-// unmarhals the given data
-func ReadMessages(conn net.Conn) (msgs []*Msg, err error) {
- // The recovering function in case anything goes horribly wrong
- defer func() {
- if r := recover(); r != nil {
- err = fmt.Errorf("ethwire.ReadMessage error: %v", r)
- }
- }()
-
- var (
- buff []byte
- messages [][]byte
- msgLength int
- )
-
- for {
- // Give buffering some time
- conn.SetReadDeadline(time.Now().Add(5 * time.Millisecond))
- // Create a new temporarily buffer
- b := make([]byte, 1440)
- n, _ := conn.Read(b)
- if err != nil && n == 0 {
- if err.Error() != "EOF" {
- fmt.Println("err now", err)
- return nil, err
- } else {
- break
- }
- }
-
- if n == 0 && len(buff) == 0 {
- // If there's nothing on the wire wait for a bit
- time.Sleep(200 * time.Millisecond)
-
- continue
- }
-
- buff = append(buff, b[:n]...)
- if msgLength == 0 {
- // Check if the received 4 first bytes are the magic token
- if bytes.Compare(MagicToken, buff[:4]) != 0 {
- return nil, fmt.Errorf("MagicToken mismatch. Received %v", buff[:4])
- }
-
- // Read the length of the message
- msgLength = int(ethutil.BytesToNumber(buff[4:8]))
-
- // Remove the token and length
- buff = buff[8:]
- }
-
- if len(buff) >= msgLength {
- messages = append(messages, buff[:msgLength])
- buff = buff[msgLength:]
- msgLength = 0
-
- if len(buff) == 0 {
- break
- }
- }
- }
-
- for _, m := range messages {
- decoder := ethutil.NewValueFromBytes(m)
- // Type of message
- t := decoder.Get(0).Uint()
- // Actual data
- d := decoder.SliceFrom(1)
-
- msgs = append(msgs, &Msg{Type: MsgType(t), Data: d})
- }
-
- return
-}
-
-// The basic message writer takes care of writing data over the given
-// connection and does some basic error checking
-func WriteMessage(conn net.Conn, msg *Msg) error {
- var pack []byte
-
- // Encode the type and the (RLP encoded) data for sending over the wire
- encoded := ethutil.NewValue(append([]interface{}{byte(msg.Type)}, msg.Data.Slice()...)).Encode()
- payloadLength := ethutil.NumberToBytes(uint32(len(encoded)), 32)
-
- // Write magic token and payload length (first 8 bytes)
- pack = append(MagicToken, payloadLength...)
- pack = append(pack, encoded...)
- //fmt.Printf("payload %v (%v) %q\n", msg.Type, conn.RemoteAddr(), encoded)
-
- // Write to the connection
- _, err := conn.Write(pack)
- if err != nil {
- return err
- }
-
- return nil
-}