mirror of
https://github.com/ethereum/go-ethereum.git
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receiving messages from wallet correctly
This commit is contained in:
Tim Williams
parent
89e0479b7a
commit
d25c879b59
1 changed files with 102 additions and 97 deletions
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@ -6,11 +6,10 @@ import (
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"net"
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"fmt"
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"os"
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"encoding/json"
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"github.com/ethereum/go-ethereum/common/hexutil"
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//"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/crypto"
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"bytes"
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"github.com/ethereum/go-ethereum/common/hexutil"
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)
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type Msg struct {
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@ -59,106 +58,112 @@ func main() {
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// Handles incoming requests.
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func handleRequest(conn net.Conn) {
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// Make a buffer to hold incoming data.
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buf := make([]byte, 1024)
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// Read the incoming connection into the buffer.
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msg, err := conn.Read(buf)
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if err == nil {
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fmt.Println("Message is ", string(buf[:msg]))
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var dat map[string]interface{}
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go func() {
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buf := make([]byte, 1024)
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msgBuf := make([]byte, 0)
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var prevMsg []byte
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var addressOfClient []byte
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var signatureFromClient []byte
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var msgFromClient []byte
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if err := json.Unmarshal(buf[:msg], &dat); err != nil {
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panic(err)
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for {
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//var addressOfClient []byte
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//var msgFromClient []byte
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//var sigFromClient []byte
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msg, err := conn.Read(buf)
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if err == nil {
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fmt.Println("Message is ", buf[:msg])
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fmt.Println("The old msg buf is ", msgBuf)
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msgBuf = append(msgBuf, buf[:msg]...)
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fmt.Println("THE msgBuf is ")
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fmt.Println(msgBuf)
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//fmt.Println("Message is ", string(buf[:msg]))
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}
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index := bytes.IndexByte(msgBuf, 0x0a)
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for index != -1 {
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newMsg := msgBuf[:index]
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rest := msgBuf[(index + 1):len(msgBuf)]
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msgBuf = rest
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index = bytes.IndexByte(msgBuf, 0x0a)
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fmt.Println("new msg")
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fmt.Println(newMsg)
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fmt.Println(string(newMsg[:]))
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fmt.Println("prev message ", prevMsg)
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fmt.Println((prevMsg == nil))
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if prevMsg != nil {
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fmt.Println("not nil")
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s := string(prevMsg[:])
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if s == "-- ADDRESS --" {
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fmt.Println("the address should be ")
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fmt.Println(newMsg)
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addressOfClient = newMsg
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}
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if s == "-- SIGNATURE --" {
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signatureFromClient = newMsg
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}
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if s == "-- MESSAGE --" {
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msgFromClient = newMsg
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}
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prevMsg = nil
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} else {
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fmt.Println("nil")
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prevMsg = newMsg
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fmt.Println("prev message is in else block ", prevMsg)
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fmt.Println("index ", index)
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fmt.Println("msgBuf ", msgBuf)
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fmt.Println(bytes.IndexByte(msgBuf, 0x0a))
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}
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}
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if(addressOfClient != nil && signatureFromClient != nil && msgFromClient != nil ){
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fmt.Println("ALL COMPONENTS RECEIVED")
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msg := string(msgFromClient[:])
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//new_msg := signHash(msgFromClient)
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sig := string(signatureFromClient[:])
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addr := string(addressOfClient[:])
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fmt.Println(addr)
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fmt.Println(msg)
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fmt.Println(sig)
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var new_byte_array = []byte(msg)
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var bazz = hexutil.Encode(new_byte_array)
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fizz, err2 := hexutil.Decode(bazz)
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var new_sig_byte_array, err3 = hexutil.Decode(sig)
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if err2 != nil {
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fmt.Println("the err2 is ")
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fmt.Println(err2)
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}
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if err3 != nil {
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fmt.Println("the err3 is ")
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fmt.Println(err3)
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}
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var buzz = hexutil.Bytes(new_sig_byte_array)
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buzz[64] -= 27
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new_msg := signHash(fizz)
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var rpk, err = crypto.Ecrecover(new_msg, buzz)
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if err != nil {
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fmt.Println("The error is ")
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fmt.Println(err)
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}
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pubKey := crypto.ToECDSAPub(rpk)
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recoveredAddr := crypto.PubkeyToAddress(*pubKey)
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fmt.Println("the address is ")
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//fmt.Println(recoveredAddr)
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fmt.Println(recoveredAddr.Hex())
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}
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}
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}()
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conn.Write([]byte{byte(0x0f)})
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fmt.Println(dat["address"])
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fmt.Println(dat["msg"])
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fmt.Println(dat["sig"])
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var msg = dat["msg"].(string)
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var sig = dat["sig"].(string)
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fmt.Println("the first sig is ")
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var new_byte_array = []byte(msg)
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var bazz = hexutil.Encode(new_byte_array)
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fizz, err2 := hexutil.Decode(bazz)
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var new_sig_byte_array, err3 = hexutil.Decode(sig)
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if err2 != nil {
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fmt.Println("the err2 is ")
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fmt.Println(err2)
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}
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if err3 != nil {
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fmt.Println("the err3 is ")
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fmt.Println(err3)
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}
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var buzz = hexutil.Bytes(new_sig_byte_array)
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buzz[64] -= 27
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new_msg := signHash(fizz)
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var rpk, err = crypto.Ecrecover(new_msg, buzz)
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if err != nil {
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fmt.Println("The error is ")
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fmt.Println(err)
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}
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pubKey := crypto.ToECDSAPub(rpk)
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recoveredAddr := crypto.PubkeyToAddress(*pubKey)
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fmt.Println("the address is ")
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//fmt.Println(recoveredAddr)
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fmt.Println(recoveredAddr.Hex())
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//conn.Write([]byte("Message received."))
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key, _ := crypto.HexToECDSA(testPrivHex)
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//addr := common.HexToAddress(testAddrHex)
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f_msg := "Hello World"
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first_message := []byte(f_msg)
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new_msg2 := crypto.Keccak256(first_message)
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fmt.Println("the hash is ", hexutil.Encode(new_msg2))
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//send_message := append(new_msg2, []byte{byte(10)}...)
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new_sig , err := crypto.Sign(new_msg2, key)
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hex_sig := hexutil.Encode(new_sig)
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fmt.Println("THE hex sig is ", hex_sig)
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myNewMsg := Msg{f_msg, string(new_msg2[:]), string(new_sig[:]), testAddrHex}
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reqBodyBytes := new(bytes.Buffer)
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json.NewEncoder(reqBodyBytes).Encode(myNewMsg)
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//testArr := []byte{0xFF, 0x0a, 0xFE, 0x11, 0x0a, 0x0a, 0x0a, 0xF0, 0x0a, 0x1F, 0x22}
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//testArr := []byte{0xFF, 0x0a, 0xFE, 0x11, 0x0a, 0x0a, 0xF0, 0x0a, 0x22}
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//testArr := []byte{0xFF, 0x0a, 0xFE, 0xa, 0x22, 0xF3}
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//testArr2 := []byte{0xF2, 0x0a, 0x1E}
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//testArr3 := []byte{0xF1, 0x0a, 0xa0}
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//conn.Write(testArr)
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//time.Sleep(1 * time.Second)
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//conn.Write(testArr2)
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//time.Sleep(1 * time.Second)
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//conn.Write(testArr3)
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conn.Write([]byte("Broadcasting Message"))
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conn.Write([]byte("\n"))
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conn.Write([]byte(f_msg))
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conn.Write([]byte("\n"))
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conn.Write(new_sig)
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conn.Write([]byte("\n"))
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fmt.Println("PAUSE")
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//time.Sleep(5 * time.Second)
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//fmt.Println(send_message)
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//conn.Write(send_message)
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//conn.Write(addr[:])
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//conn.Write(append(reqBodyBytes.Bytes() ,[]byte{byte(10)}...))
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}
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if err != nil {
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fmt.Println("Error reading:", err.Error())
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}
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// Send a response back to person contacting us.
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// Close the connection when you're done with it.
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