ssh client -> tcptows -> wstotcp -> sshserver works.
This commit is contained in:
parent
25e9e944b2
commit
7b2523630a
74
cmd/tcptows/tcptows.go
Normal file
74
cmd/tcptows/tcptows.go
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@ -0,0 +1,74 @@
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package main
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import (
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"io"
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"log"
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"net"
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"github.com/gorilla/websocket"
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)
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func handleConnection(conn net.Conn, wsURL string) {
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defer conn.Close()
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wsConn, _, err := websocket.DefaultDialer.Dial(wsURL, nil)
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if err != nil {
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log.Println("WebSocket connection error:", err)
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return
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}
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defer wsConn.Close()
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go func() {
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for {
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_, message, err := wsConn.ReadMessage()
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if err != nil {
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log.Println("WebSocket read error:", err)
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return
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}
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_, err = conn.Write(message)
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if err != nil {
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log.Println("TCP write error:", err)
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return
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}
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}
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}()
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for {
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buffer := make([]byte, 1024)
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n, err := conn.Read(buffer)
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if err != nil {
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if err != io.EOF {
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log.Println("TCP read error:", err)
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}
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return
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}
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err = wsConn.WriteMessage(websocket.BinaryMessage, buffer[:n])
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if err != nil {
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log.Println("WebSocket write error:", err)
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return
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}
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}
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}
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func main() {
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tcpPort := "7000"
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wsURL := "ws://localhost:8000/ws" // Replace with your WebSocket server URL
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listener, err := net.Listen("tcp", ":"+tcpPort)
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if err != nil {
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log.Fatal(err)
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}
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defer listener.Close()
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log.Printf("TCP server listening on port %s", tcpPort)
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log.Printf("Forwarding connections to WebSocket server at %s", wsURL)
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for {
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conn, err := listener.Accept()
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if err != nil {
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log.Println(err)
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continue
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}
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go handleConnection(conn, wsURL)
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}
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}
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86
cmd/wstotcp/wstotcp.go
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86
cmd/wstotcp/wstotcp.go
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@ -0,0 +1,86 @@
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package main
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import (
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"fmt"
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"log"
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"net"
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"net/http"
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"github.com/gorilla/websocket"
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)
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var upgrader = websocket.Upgrader{
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ReadBufferSize: 1024,
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WriteBufferSize: 1024,
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}
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var tcpConn net.Conn
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func main() {
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// Connect to TCP server
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var err error
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tcpConn, err = net.Dial("tcp", "localhost:2222") // Replace with your TCP server address
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if err != nil {
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log.Fatal("Error connecting to TCP server:", err)
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}
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defer tcpConn.Close()
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// Set up WebSocket handler
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http.HandleFunc("/ws", handleWebSocket)
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// Start HTTP server
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fmt.Println("WebSocket server listening on :8000")
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log.Fatal(http.ListenAndServe(":8000", nil))
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}
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func handleWebSocket(w http.ResponseWriter, r *http.Request) {
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conn, err := upgrader.Upgrade(w, r, nil)
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if err != nil {
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log.Println("Error upgrading to WebSocket:", err)
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return
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}
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defer conn.Close()
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waitChannel := make(chan bool)
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// Read message from WebSocket
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go func() {
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defer func() {
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waitChannel <- true
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}()
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for {
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_, message, err := conn.ReadMessage()
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if err != nil {
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log.Println("Error reading WebSocket message:", err)
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return
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}
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_, err = tcpConn.Write(message)
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if err != nil {
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log.Println("Error sending message to TCP server:", err)
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return
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}
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}
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}()
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go func() {
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defer func() {
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waitChannel <- true
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}()
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for {
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buffer := make([]byte, 1024)
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n, err := tcpConn.Read(buffer)
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if err != nil {
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log.Println("Error reading from TCP server:", err)
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return
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}
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err = conn.WriteMessage(websocket.TextMessage, buffer[:n])
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if err != nil {
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log.Println("Error writing WebSocket message:", err)
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return
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}
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}
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}()
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<-waitChannel
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log.Println("Connection closed")
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}
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1
go.mod
1
go.mod
@ -5,6 +5,7 @@ go 1.18
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require (
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github.com/creack/pty v1.1.21
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github.com/gliderlabs/ssh v0.3.7
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github.com/gorilla/websocket v1.5.3
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github.com/pkg/sftp v1.13.6
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golang.org/x/crypto v0.25.0
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golang.org/x/term v0.22.0
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6
go.sum
6
go.sum
@ -3,17 +3,22 @@ github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be/go.mod h1:ySMOLuW
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github.com/creack/pty v1.1.21 h1:1/QdRyBaHHJP61QkWMXlOIBfsgdDeeKfK8SYVUWJKf0=
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github.com/creack/pty v1.1.21/go.mod h1:MOBLtS5ELjhRRrroQr9kyvTxUAFNvYEK993ew/Vr4O4=
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github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
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github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/gliderlabs/ssh v0.3.7 h1:iV3Bqi942d9huXnzEF2Mt+CY9gLu8DNM4Obd+8bODRE=
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github.com/gliderlabs/ssh v0.3.7/go.mod h1:zpHEXBstFnQYtGnB8k8kQLol82umzn/2/snG7alWVD8=
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github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
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github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
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github.com/kr/fs v0.1.0 h1:Jskdu9ieNAYnjxsi0LbQp1ulIKZV1LAFgK1tWhpZgl8=
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github.com/kr/fs v0.1.0/go.mod h1:FFnZGqtBN9Gxj7eW1uZ42v5BccTP0vu6NEaFoC2HwRg=
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github.com/pkg/sftp v1.13.6 h1:JFZT4XbOU7l77xGSpOdW+pwIMqP044IyjXX6FGyEKFo=
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github.com/pkg/sftp v1.13.6/go.mod h1:tz1ryNURKu77RL+GuCzmoJYxQczL3wLNNpPWagdg4Qk=
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github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
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github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
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github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
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github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
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github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
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github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
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github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
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golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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@ -51,4 +56,5 @@ golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc
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golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
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gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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