7 Commits

Author SHA1 Message Date
5edb3c8086 fix: startup order
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2026-01-04 15:19:03 +07:00
5b603d8317 feat: implement sessions request from grpc server
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Docker Build and Push / build-and-push-tags (push) Successful in 4m7s
2026-01-03 21:17:01 +07:00
8fd9f8b567 feat: implement sessions request from grpc server
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Docker Build and Push / build-and-push-tags (push) Has been cancelled
2026-01-03 20:06:14 +07:00
30e84ac3b7 feat: implement get sessions by user 2026-01-02 22:58:54 +07:00
fd6ffc2500 feat(grpc): integrate slug edit handling 2026-01-02 18:27:48 +07:00
e1cd4ed981 WIP: gRPC integration, initial implementation 2026-01-01 21:03:17 +07:00
96d2b88f95 WIP: gRPC integration, initial implementation 2026-01-01 21:01:15 +07:00
27 changed files with 1503 additions and 1647 deletions
+21
View File
@@ -0,0 +1,21 @@
name: renovate
on:
schedule:
- cron: "0 0 * * *"
push:
branches:
- staging
jobs:
renovate:
runs-on: ubuntu-latest
container: git.fossy.my.id/renovate-clanker/renovate:latest
steps:
- uses: actions/checkout@v6
- run: renovate
env:
RENOVATE_CONFIG_FILE: ${{ gitea.workspace }}/renovate-config.js
LOG_LEVEL: "debug"
RENOVATE_TOKEN: ${{ secrets.RENOVATE_TOKEN }}
GITHUB_COM_TOKEN: ${{ secrets.COM_TOKEN }}
+1 -1
View File
@@ -1,4 +1,4 @@
FROM golang:1.25.6-alpine AS go_builder
FROM golang:1.25.5-alpine AS go_builder
ARG VERSION=dev
ARG BUILD_DATE=unknown
+6 -6
View File
@@ -3,15 +3,15 @@ module tunnel_pls
go 1.25.5
require (
git.fossy.my.id/bagas/tunnel-please-grpc v1.5.0
github.com/caddyserver/certmagic v0.25.1
git.fossy.my.id/bagas/tunnel-please-grpc v1.2.0
github.com/caddyserver/certmagic v0.25.0
github.com/charmbracelet/bubbles v0.21.0
github.com/charmbracelet/bubbletea v1.3.10
github.com/charmbracelet/lipgloss v1.1.0
github.com/joho/godotenv v1.5.1
github.com/libdns/cloudflare v0.2.2
github.com/muesli/termenv v0.16.0
golang.org/x/crypto v0.47.0
golang.org/x/crypto v0.46.0
google.golang.org/grpc v1.78.0
google.golang.org/protobuf v1.36.11
)
@@ -19,7 +19,7 @@ require (
require (
github.com/atotto/clipboard v0.1.4 // indirect
github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
github.com/caddyserver/zerossl v0.1.4 // indirect
github.com/caddyserver/zerossl v0.1.3 // indirect
github.com/charmbracelet/colorprofile v0.4.1 // indirect
github.com/charmbracelet/x/ansi v0.11.3 // indirect
github.com/charmbracelet/x/cellbuf v0.0.14 // indirect
@@ -48,8 +48,8 @@ require (
golang.org/x/mod v0.31.0 // indirect
golang.org/x/net v0.48.0 // indirect
golang.org/x/sync v0.19.0 // indirect
golang.org/x/sys v0.40.0 // indirect
golang.org/x/text v0.33.0 // indirect
golang.org/x/sys v0.39.0 // indirect
golang.org/x/text v0.32.0 // indirect
golang.org/x/tools v0.40.0 // indirect
google.golang.org/genproto/googleapis/rpc v0.0.0-20251222181119-0a764e51fe1b // indirect
)
+14 -14
View File
@@ -1,15 +1,15 @@
git.fossy.my.id/bagas/tunnel-please-grpc v1.5.0 h1:3xszIhck4wo9CoeRq9vnkar4PhY7kz9QrR30qj2XszA=
git.fossy.my.id/bagas/tunnel-please-grpc v1.5.0/go.mod h1:Weh6ZujgWmT8XxD3Qba7sJ6r5eyUMB9XSWynqdyOoLo=
git.fossy.my.id/bagas/tunnel-please-grpc v1.2.0 h1:BS1dJU3wa2ILgTGwkV95Knle0il0OQtErGqyb6xV7SU=
git.fossy.my.id/bagas/tunnel-please-grpc v1.2.0/go.mod h1:fG+VkArdkceGB0bNA7IFQus9GetLAwdF5Oi4jdMlXtY=
github.com/atotto/clipboard v0.1.4 h1:EH0zSVneZPSuFR11BlR9YppQTVDbh5+16AmcJi4g1z4=
github.com/atotto/clipboard v0.1.4/go.mod h1:ZY9tmq7sm5xIbd9bOK4onWV4S6X0u6GY7Vn0Yu86PYI=
github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8=
github.com/aymanbagabas/go-udiff v0.2.0 h1:TK0fH4MteXUDspT88n8CKzvK0X9O2xu9yQjWpi6yML8=
github.com/aymanbagabas/go-udiff v0.2.0/go.mod h1:RE4Ex0qsGkTAJoQdQQCA0uG+nAzJO/pI/QwceO5fgrA=
github.com/caddyserver/certmagic v0.25.1 h1:4sIKKbOt5pg6+sL7tEwymE1x2bj6CHr80da1CRRIPbY=
github.com/caddyserver/certmagic v0.25.1/go.mod h1:VhyvndxtVton/Fo/wKhRoC46Rbw1fmjvQ3GjHYSQTEY=
github.com/caddyserver/zerossl v0.1.4 h1:CVJOE3MZeFisCERZjkxIcsqIH4fnFdlYWnPYeFtBHRw=
github.com/caddyserver/zerossl v0.1.4/go.mod h1:CxA0acn7oEGO6//4rtrRjYgEoa4MFw/XofZnrYwGqG4=
github.com/caddyserver/certmagic v0.25.0 h1:VMleO/XA48gEWes5l+Fh6tRWo9bHkhwAEhx63i+F5ic=
github.com/caddyserver/certmagic v0.25.0/go.mod h1:m9yB7Mud24OQbPHOiipAoyKPn9pKHhpSJxXR1jydBxA=
github.com/caddyserver/zerossl v0.1.3 h1:onS+pxp3M8HnHpN5MMbOMyNjmTheJyWRaZYwn+YTAyA=
github.com/caddyserver/zerossl v0.1.3/go.mod h1:CxA0acn7oEGO6//4rtrRjYgEoa4MFw/XofZnrYwGqG4=
github.com/charmbracelet/bubbles v0.21.0 h1:9TdC97SdRVg/1aaXNVWfFH3nnLAwOXr8Fn6u6mfQdFs=
github.com/charmbracelet/bubbles v0.21.0/go.mod h1:HF+v6QUR4HkEpz62dx7ym2xc71/KBHg+zKwJtMw+qtg=
github.com/charmbracelet/bubbletea v1.3.10 h1:otUDHWMMzQSB0Pkc87rm691KZ3SWa4KUlvF9nRvCICw=
@@ -110,8 +110,8 @@ go.uber.org/zap v1.27.1 h1:08RqriUEv8+ArZRYSTXy1LeBScaMpVSTBhCeaZYfMYc=
go.uber.org/zap v1.27.1/go.mod h1:GB2qFLM7cTU87MWRP2mPIjqfIDnGu+VIO4V/SdhGo2E=
go.uber.org/zap/exp v0.3.0 h1:6JYzdifzYkGmTdRR59oYH+Ng7k49H9qVpWwNSsGJj3U=
go.uber.org/zap/exp v0.3.0/go.mod h1:5I384qq7XGxYyByIhHm6jg5CHkGY0nsTfbDLgDDlgJQ=
golang.org/x/crypto v0.47.0 h1:V6e3FRj+n4dbpw86FJ8Fv7XVOql7TEwpHapKoMJ/GO8=
golang.org/x/crypto v0.47.0/go.mod h1:ff3Y9VzzKbwSSEzWqJsJVBnWmRwRSHt/6Op5n9bQc4A=
golang.org/x/crypto v0.46.0 h1:cKRW/pmt1pKAfetfu+RCEvjvZkA9RimPbh7bhFjGVBU=
golang.org/x/crypto v0.46.0/go.mod h1:Evb/oLKmMraqjZ2iQTwDwvCtJkczlDuTmdJXoZVzqU0=
golang.org/x/exp v0.0.0-20231006140011-7918f672742d h1:jtJma62tbqLibJ5sFQz8bKtEM8rJBtfilJ2qTU199MI=
golang.org/x/exp v0.0.0-20231006140011-7918f672742d/go.mod h1:ldy0pHrwJyGW56pPQzzkH36rKxoZW1tw7ZJpeKx+hdo=
golang.org/x/mod v0.31.0 h1:HaW9xtz0+kOcWKwli0ZXy79Ix+UW/vOfmWI5QVd2tgI=
@@ -122,12 +122,12 @@ golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.40.0 h1:DBZZqJ2Rkml6QMQsZywtnjnnGvHza6BTfYFWY9kjEWQ=
golang.org/x/sys v0.40.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
golang.org/x/term v0.39.0 h1:RclSuaJf32jOqZz74CkPA9qFuVTX7vhLlpfj/IGWlqY=
golang.org/x/term v0.39.0/go.mod h1:yxzUCTP/U+FzoxfdKmLaA0RV1WgE0VY7hXBwKtY/4ww=
golang.org/x/text v0.33.0 h1:B3njUFyqtHDUI5jMn1YIr5B0IE2U0qck04r6d4KPAxE=
golang.org/x/text v0.33.0/go.mod h1:LuMebE6+rBincTi9+xWTY8TztLzKHc/9C1uBCG27+q8=
golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
golang.org/x/term v0.38.0 h1:PQ5pkm/rLO6HnxFR7N2lJHOZX6Kez5Y1gDSJla6jo7Q=
golang.org/x/term v0.38.0/go.mod h1:bSEAKrOT1W+VSu9TSCMtoGEOUcKxOKgl3LE5QEF/xVg=
golang.org/x/text v0.32.0 h1:ZD01bjUt1FQ9WJ0ClOL5vxgxOI/sVCNgX1YtKwcY0mU=
golang.org/x/text v0.32.0/go.mod h1:o/rUWzghvpD5TXrTIBuJU77MTaN0ljMWE47kxGJQ7jY=
golang.org/x/tools v0.40.0 h1:yLkxfA+Qnul4cs9QA3KnlFu0lVmd8JJfoq+E41uSutA=
golang.org/x/tools v0.40.0/go.mod h1:Ik/tzLRlbscWpqqMRjyWYDisX8bG13FrdXp3o4Sr9lc=
gonum.org/v1/gonum v0.16.0 h1:5+ul4Swaf3ESvrOnidPp4GZbzf0mxVQpDCYUQE7OJfk=
+5 -3
View File
@@ -1,17 +1,19 @@
package config
import (
"log"
"os"
"strconv"
"github.com/joho/godotenv"
)
func Load() error {
func init() {
if _, err := os.Stat(".env"); err == nil {
return godotenv.Load(".env")
if err := godotenv.Load(".env"); err != nil {
log.Printf("Warning: Failed to load .env file: %s", err)
}
}
return nil
}
func Getenv(key, defaultValue string) string {
+160 -150
View File
@@ -2,19 +2,20 @@ package client
import (
"context"
"crypto/tls"
"errors"
"fmt"
"io"
"log"
"time"
"tunnel_pls/internal/config"
"tunnel_pls/types"
"tunnel_pls/session"
proto "git.fossy.my.id/bagas/tunnel-please-grpc/gen"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/credentials/insecure"
"google.golang.org/grpc/health/grpc_health_v1"
"google.golang.org/grpc/keepalive"
@@ -22,34 +23,84 @@ import (
"google.golang.org/protobuf/types/known/timestamppb"
)
type Client interface {
SubscribeEvents(ctx context.Context, identity, authToken string) error
ClientConn() *grpc.ClientConn
AuthorizeConn(ctx context.Context, token string) (authorized bool, user string, err error)
Close() error
CheckServerHealth(ctx context.Context) error
type GrpcConfig struct {
Address string
UseTLS bool
InsecureSkipVerify bool
Timeout time.Duration
KeepAlive bool
MaxRetries int
KeepAliveTime time.Duration
KeepAliveTimeout time.Duration
PermitWithoutStream bool
}
type client struct {
type Client struct {
conn *grpc.ClientConn
address string
config *GrpcConfig
sessionRegistry session.Registry
slugService proto.SlugChangeClient
eventService proto.EventServiceClient
authorizeConnectionService proto.UserServiceClient
closing bool
}
func New(address string, sessionRegistry session.Registry) (Client, error) {
var opts []grpc.DialOption
opts = append(opts, grpc.WithTransportCredentials(insecure.NewCredentials()))
kaParams := keepalive.ClientParameters{
Time: 2 * time.Minute,
func DefaultConfig() *GrpcConfig {
return &GrpcConfig{
Address: "localhost:50051",
UseTLS: false,
InsecureSkipVerify: false,
Timeout: 10 * time.Second,
KeepAlive: true,
MaxRetries: 3,
KeepAliveTime: 2 * time.Minute,
KeepAliveTimeout: 10 * time.Second,
PermitWithoutStream: false,
}
}
func New(config *GrpcConfig, sessionRegistry session.Registry) (*Client, error) {
if config == nil {
config = DefaultConfig()
} else {
defaults := DefaultConfig()
if config.Address == "" {
config.Address = defaults.Address
}
if config.Timeout == 0 {
config.Timeout = defaults.Timeout
}
if config.MaxRetries == 0 {
config.MaxRetries = defaults.MaxRetries
}
if config.KeepAliveTime == 0 {
config.KeepAliveTime = defaults.KeepAliveTime
}
if config.KeepAliveTimeout == 0 {
config.KeepAliveTimeout = defaults.KeepAliveTimeout
}
}
var opts []grpc.DialOption
if config.UseTLS {
tlsConfig := &tls.Config{
InsecureSkipVerify: config.InsecureSkipVerify,
}
creds := credentials.NewTLS(tlsConfig)
opts = append(opts, grpc.WithTransportCredentials(creds))
} else {
opts = append(opts, grpc.WithTransportCredentials(insecure.NewCredentials()))
}
if config.KeepAlive {
kaParams := keepalive.ClientParameters{
Time: config.KeepAliveTime,
Timeout: config.KeepAliveTimeout,
PermitWithoutStream: config.PermitWithoutStream,
}
opts = append(opts, grpc.WithKeepaliveParams(kaParams))
}
opts = append(opts,
grpc.WithDefaultCallOptions(
@@ -58,24 +109,26 @@ func New(address string, sessionRegistry session.Registry) (Client, error) {
),
)
conn, err := grpc.NewClient(address, opts...)
conn, err := grpc.NewClient(config.Address, opts...)
if err != nil {
return nil, fmt.Errorf("failed to connect to gRPC server at %s: %w", address, err)
return nil, fmt.Errorf("failed to connect to gRPC server at %s: %w", config.Address, err)
}
slugService := proto.NewSlugChangeClient(conn)
eventService := proto.NewEventServiceClient(conn)
authorizeConnectionService := proto.NewUserServiceClient(conn)
return &client{
return &Client{
conn: conn,
address: address,
config: config,
slugService: slugService,
sessionRegistry: sessionRegistry,
eventService: eventService,
authorizeConnectionService: authorizeConnectionService,
}, nil
}
func (c *client) SubscribeEvents(ctx context.Context, identity, authToken string) error {
func (c *Client) SubscribeEvents(ctx context.Context, identity, authToken string) error {
const (
baseBackoff = time.Second
maxBackoff = 30 * time.Second
@@ -148,6 +201,7 @@ func (c *client) SubscribeEvents(ctx context.Context, identity, authToken string
if c.isConnectionError(err) {
log.Printf("Reconnect to controller within %v sec", backoff.Seconds())
if err = wait(); err != nil {
fmt.Println(err)
return err
}
growBackoff()
@@ -158,77 +212,79 @@ func (c *client) SubscribeEvents(ctx context.Context, identity, authToken string
}
}
func (c *client) processEventStream(subscribe grpc.BidiStreamingClient[proto.Node, proto.Events]) error {
handlers := c.eventHandlers(subscribe)
func (c *Client) processEventStream(subscribe grpc.BidiStreamingClient[proto.Node, proto.Events]) error {
for {
recv, err := subscribe.Recv()
if err != nil {
return err
}
handler, ok := handlers[recv.GetType()]
if !ok {
log.Printf("Unknown event type received: %v", recv.GetType())
switch recv.GetType() {
case proto.EventType_SLUG_CHANGE:
oldSlug := recv.GetSlugEvent().GetOld()
newSlug := recv.GetSlugEvent().GetNew()
sess, err := c.sessionRegistry.Get(oldSlug)
if err != nil {
errSend := subscribe.Send(&proto.Node{
Type: proto.EventType_SLUG_CHANGE_RESPONSE,
Payload: &proto.Node_SlugEventResponse{
SlugEventResponse: &proto.SlugChangeEventResponse{
Success: false,
Message: err.Error(),
},
},
})
if errSend != nil {
if c.isConnectionError(errSend) {
return errSend
}
log.Printf("non-connection send error for slug change failure: %v", errSend)
}
continue
}
if err = handler(recv); err != nil {
err = c.sessionRegistry.Update(oldSlug, newSlug)
if err != nil {
errSend := subscribe.Send(&proto.Node{
Type: proto.EventType_SLUG_CHANGE_RESPONSE,
Payload: &proto.Node_SlugEventResponse{
SlugEventResponse: &proto.SlugChangeEventResponse{
Success: false,
Message: err.Error(),
},
},
})
if errSend != nil {
if c.isConnectionError(errSend) {
return errSend
}
log.Printf("non-connection send error for slug change failure: %v", errSend)
}
continue
}
sess.GetInteraction().Redraw()
err = subscribe.Send(&proto.Node{
Type: proto.EventType_SLUG_CHANGE_RESPONSE,
Payload: &proto.Node_SlugEventResponse{
SlugEventResponse: &proto.SlugChangeEventResponse{
Success: true,
Message: "",
},
},
})
if err != nil {
if c.isConnectionError(err) {
log.Printf("connection error sending slug change success: %v", err)
return err
}
log.Printf("non-connection send error for slug change success: %v", err)
continue
}
}
func (c *client) eventHandlers(subscribe grpc.BidiStreamingClient[proto.Node, proto.Events]) map[proto.EventType]func(*proto.Events) error {
return map[proto.EventType]func(*proto.Events) error{
proto.EventType_SLUG_CHANGE: func(evt *proto.Events) error { return c.handleSlugChange(subscribe, evt) },
proto.EventType_GET_SESSIONS: func(evt *proto.Events) error { return c.handleGetSessions(subscribe, evt) },
proto.EventType_TERMINATE_SESSION: func(evt *proto.Events) error { return c.handleTerminateSession(subscribe, evt) },
}
}
func (c *client) handleSlugChange(subscribe grpc.BidiStreamingClient[proto.Node, proto.Events], evt *proto.Events) error {
slugEvent := evt.GetSlugEvent()
user := slugEvent.GetUser()
oldSlug := slugEvent.GetOld()
newSlug := slugEvent.GetNew()
userSession, err := c.sessionRegistry.Get(types.SessionKey{Id: oldSlug, Type: types.HTTP})
if err != nil {
return c.sendNode(subscribe, &proto.Node{
Type: proto.EventType_SLUG_CHANGE_RESPONSE,
Payload: &proto.Node_SlugEventResponse{
SlugEventResponse: &proto.SlugChangeEventResponse{Success: false, Message: err.Error()},
},
}, "slug change failure response")
}
if err = c.sessionRegistry.Update(user, types.SessionKey{Id: oldSlug, Type: types.HTTP}, types.SessionKey{Id: newSlug, Type: types.HTTP}); err != nil {
return c.sendNode(subscribe, &proto.Node{
Type: proto.EventType_SLUG_CHANGE_RESPONSE,
Payload: &proto.Node_SlugEventResponse{
SlugEventResponse: &proto.SlugChangeEventResponse{Success: false, Message: err.Error()},
},
}, "slug change failure response")
}
userSession.Interaction().Redraw()
return c.sendNode(subscribe, &proto.Node{
Type: proto.EventType_SLUG_CHANGE_RESPONSE,
Payload: &proto.Node_SlugEventResponse{
SlugEventResponse: &proto.SlugChangeEventResponse{Success: true, Message: ""},
},
}, "slug change success response")
}
func (c *client) handleGetSessions(subscribe grpc.BidiStreamingClient[proto.Node, proto.Events], evt *proto.Events) error {
sessions := c.sessionRegistry.GetAllSessionFromUser(evt.GetGetSessionsEvent().GetIdentity())
case proto.EventType_GET_SESSIONS:
sessions := c.sessionRegistry.GetAllSessionFromUser(recv.GetGetSessionsEvent().GetIdentity())
var details []*proto.Detail
for _, ses := range sessions {
detail := ses.Detail()
details = append(details, &proto.Detail{
Node: config.Getenv("DOMAIN", "localhost"),
Node: config.Getenv("domain", "localhost"),
ForwardingType: detail.ForwardingType,
Slug: detail.Slug,
UserId: detail.UserID,
@@ -236,83 +292,33 @@ func (c *client) handleGetSessions(subscribe grpc.BidiStreamingClient[proto.Node
StartedAt: timestamppb.New(detail.StartedAt),
})
}
return c.sendNode(subscribe, &proto.Node{
err = subscribe.Send(&proto.Node{
Type: proto.EventType_GET_SESSIONS,
Payload: &proto.Node_GetSessionsEvent{
GetSessionsEvent: &proto.GetSessionsResponse{Details: details},
GetSessionsEvent: &proto.GetSessionsResponse{
Details: details,
},
}, "send get sessions response")
}
func (c *client) handleTerminateSession(subscribe grpc.BidiStreamingClient[proto.Node, proto.Events], evt *proto.Events) error {
terminate := evt.GetTerminateSessionEvent()
user := terminate.GetUser()
slug := terminate.GetSlug()
tunnelType, err := c.protoToTunnelType(terminate.GetTunnelType())
},
})
if err != nil {
return c.sendNode(subscribe, &proto.Node{
Type: proto.EventType_TERMINATE_SESSION,
Payload: &proto.Node_TerminateSessionEventResponse{
TerminateSessionEventResponse: &proto.TerminateSessionEventResponse{Success: false, Message: err.Error()},
},
}, "terminate session invalid tunnel type")
}
userSession, err := c.sessionRegistry.GetWithUser(user, types.SessionKey{Id: slug, Type: tunnelType})
if err != nil {
return c.sendNode(subscribe, &proto.Node{
Type: proto.EventType_TERMINATE_SESSION,
Payload: &proto.Node_TerminateSessionEventResponse{
TerminateSessionEventResponse: &proto.TerminateSessionEventResponse{Success: false, Message: err.Error()},
},
}, "terminate session fetch failed")
}
if err = userSession.Lifecycle().Close(); err != nil {
return c.sendNode(subscribe, &proto.Node{
Type: proto.EventType_TERMINATE_SESSION,
Payload: &proto.Node_TerminateSessionEventResponse{
TerminateSessionEventResponse: &proto.TerminateSessionEventResponse{Success: false, Message: err.Error()},
},
}, "terminate session close failed")
}
return c.sendNode(subscribe, &proto.Node{
Type: proto.EventType_TERMINATE_SESSION,
Payload: &proto.Node_TerminateSessionEventResponse{
TerminateSessionEventResponse: &proto.TerminateSessionEventResponse{Success: true, Message: ""},
},
}, "terminate session success response")
}
func (c *client) sendNode(subscribe grpc.BidiStreamingClient[proto.Node, proto.Events], node *proto.Node, context string) error {
if err := subscribe.Send(node); err != nil {
if c.isConnectionError(err) {
log.Printf("connection error sending sessions success: %v", err)
return err
}
log.Printf("%s: %v", context, err)
log.Printf("non-connection send error for sessions success: %v", err)
continue
}
return nil
}
func (c *client) protoToTunnelType(t proto.TunnelType) (types.TunnelType, error) {
switch t {
case proto.TunnelType_HTTP:
return types.HTTP, nil
case proto.TunnelType_TCP:
return types.TCP, nil
default:
return types.UNKNOWN, fmt.Errorf("unknown tunnel type received")
log.Printf("Unknown event type received: %v", recv.GetType())
}
}
}
func (c *client) ClientConn() *grpc.ClientConn {
func (c *Client) GetConnection() *grpc.ClientConn {
return c.conn
}
func (c *client) AuthorizeConn(ctx context.Context, token string) (authorized bool, user string, err error) {
func (c *Client) AuthorizeConn(ctx context.Context, token string) (authorized bool, user string, err error) {
check, err := c.authorizeConnectionService.Check(ctx, &proto.CheckRequest{AuthToken: token})
if err != nil {
return false, "UNAUTHORIZED", err
@@ -324,8 +330,17 @@ func (c *client) AuthorizeConn(ctx context.Context, token string) (authorized bo
return true, check.GetUser(), nil
}
func (c *client) CheckServerHealth(ctx context.Context) error {
healthClient := grpc_health_v1.NewHealthClient(c.ClientConn())
func (c *Client) Close() error {
if c.conn != nil {
log.Printf("Closing gRPC connection to %s", c.config.Address)
c.closing = true
return c.conn.Close()
}
return nil
}
func (c *Client) CheckServerHealth(ctx context.Context) error {
healthClient := grpc_health_v1.NewHealthClient(c.GetConnection())
resp, err := healthClient.Check(ctx, &grpc_health_v1.HealthCheckRequest{
Service: "",
})
@@ -338,16 +353,11 @@ func (c *client) CheckServerHealth(ctx context.Context) error {
return nil
}
func (c *client) Close() error {
if c.conn != nil {
log.Printf("Closing gRPC connection to %s", c.address)
c.closing = true
return c.conn.Close()
}
return nil
func (c *Client) GetConfig() *GrpcConfig {
return c.config
}
func (c *client) isConnectionError(err error) bool {
func (c *Client) isConnectionError(err error) bool {
if c.closing {
return false
}
+36 -23
View File
@@ -3,30 +3,53 @@ package port
import (
"fmt"
"sort"
"strconv"
"strings"
"sync"
"tunnel_pls/internal/config"
)
type Registry interface {
type Manager interface {
AddPortRange(startPort, endPort uint16) error
GetUnassignedPort() (uint16, bool)
SetPortStatus(port uint16, assigned bool) error
ClaimPort(port uint16) (claimed bool)
GetPortStatus(port uint16) (bool, bool)
}
type registry struct {
type manager struct {
mu sync.RWMutex
ports map[uint16]bool
sortedPorts []uint16
}
func New() Registry {
return &registry{
var Default Manager = &manager{
ports: make(map[uint16]bool),
sortedPorts: []uint16{},
}
func init() {
rawRange := config.Getenv("ALLOWED_PORTS", "")
if rawRange == "" {
return
}
func (pm *registry) AddPortRange(startPort, endPort uint16) error {
splitRange := strings.Split(rawRange, "-")
if len(splitRange) != 2 {
return
}
start, err := strconv.ParseUint(splitRange[0], 10, 16)
if err != nil {
return
}
end, err := strconv.ParseUint(splitRange[1], 10, 16)
if err != nil {
return
}
_ = Default.AddPortRange(uint16(start), uint16(end))
}
func (pm *manager) AddPortRange(startPort, endPort uint16) error {
pm.mu.Lock()
defer pm.mu.Unlock()
@@ -45,19 +68,20 @@ func (pm *registry) AddPortRange(startPort, endPort uint16) error {
return nil
}
func (pm *registry) GetUnassignedPort() (uint16, bool) {
func (pm *manager) GetUnassignedPort() (uint16, bool) {
pm.mu.Lock()
defer pm.mu.Unlock()
for _, port := range pm.sortedPorts {
if !pm.ports[port] {
pm.ports[port] = true
return port, true
}
}
return 0, false
}
func (pm *registry) SetPortStatus(port uint16, assigned bool) error {
func (pm *manager) SetPortStatus(port uint16, assigned bool) error {
pm.mu.Lock()
defer pm.mu.Unlock()
@@ -65,21 +89,10 @@ func (pm *registry) SetPortStatus(port uint16, assigned bool) error {
return nil
}
func (pm *registry) ClaimPort(port uint16) (claimed bool) {
pm.mu.Lock()
defer pm.mu.Unlock()
func (pm *manager) GetPortStatus(port uint16) (bool, bool) {
pm.mu.RLock()
defer pm.mu.RUnlock()
status, exists := pm.ports[port]
if exists && status {
return false
}
if !exists {
pm.ports[port] = true
return true
}
pm.ports[port] = true
return true
return status, exists
}
+13 -13
View File
@@ -1,18 +1,18 @@
package random
import "crypto/rand"
import (
mathrand "math/rand"
"strings"
"time"
)
func GenerateRandomString(length int) (string, error) {
const charset = "abcdefghijklmnopqrstuvwxyz0123456789"
b := make([]byte, length)
if _, err := rand.Read(b); err != nil {
return "", err
func GenerateRandomString(length int) string {
const charset = "abcdefghijklmnopqrstuvwxyz"
seededRand := mathrand.New(mathrand.NewSource(time.Now().UnixNano() + int64(mathrand.Intn(9999))))
var result strings.Builder
for i := 0; i < length; i++ {
randomIndex := seededRand.Intn(len(charset))
result.WriteString(string(charset[randomIndex]))
}
for i := range b {
b[i] = charset[int(b[i])%len(charset)]
}
return string(b), nil
return result.String()
}
+18 -49
View File
@@ -8,14 +8,12 @@ import (
_ "net/http/pprof"
"os"
"os/signal"
"strconv"
"strings"
"syscall"
"time"
"tunnel_pls/internal/config"
"tunnel_pls/internal/grpc/client"
"tunnel_pls/internal/key"
"tunnel_pls/internal/port"
"tunnel_pls/server"
"tunnel_pls/session"
"tunnel_pls/version"
@@ -34,12 +32,6 @@ func main() {
log.Printf("Starting %s", version.GetVersion())
err := config.Load()
if err != nil {
log.Fatalf("Failed to load configuration: %s", err)
return
}
mode := strings.ToLower(config.Getenv("MODE", "standalone"))
isNodeMode := mode == "node"
@@ -49,7 +41,7 @@ func main() {
go func() {
pprofAddr := fmt.Sprintf("localhost:%s", pprofPort)
log.Printf("Starting pprof server on http://%s/debug/pprof/", pprofAddr)
if err = http.ListenAndServe(pprofAddr, nil); err != nil {
if err := http.ListenAndServe(pprofAddr, nil); err != nil {
log.Printf("pprof server error: %v", err)
}
}()
@@ -57,11 +49,11 @@ func main() {
sshConfig := &ssh.ServerConfig{
NoClientAuth: true,
ServerVersion: fmt.Sprintf("SSH-2.0-TunnelPlease-%s", version.GetShortVersion()),
ServerVersion: fmt.Sprintf("SSH-2.0-TunnlPls-%s", version.GetShortVersion()),
}
sshKeyPath := "certs/ssh/id_rsa"
if err = key.GenerateSSHKeyIfNotExist(sshKeyPath); err != nil {
if err := key.GenerateSSHKeyIfNotExist(sshKeyPath); err != nil {
log.Fatalf("Failed to generate SSH key: %s", err)
}
@@ -85,7 +77,7 @@ func main() {
shutdownChan := make(chan os.Signal, 1)
signal.Notify(shutdownChan, os.Interrupt, syscall.SIGTERM)
var grpcClient client.Client
var grpcClient *client.Client
if isNodeMode {
grpcHost := config.Getenv("GRPC_ADDRESS", "localhost")
grpcPort := config.Getenv("GRPC_PORT", "8080")
@@ -95,13 +87,21 @@ func main() {
log.Fatalf("NODE_TOKEN is required in node mode")
}
grpcClient, err = client.New(grpcAddr, sessionRegistry)
c, err := client.New(&client.GrpcConfig{
Address: grpcAddr,
UseTLS: false,
InsecureSkipVerify: false,
Timeout: 10 * time.Second,
KeepAlive: true,
MaxRetries: 3,
}, sessionRegistry)
if err != nil {
log.Fatalf("failed to create grpc client: %v", err)
}
grpcClient = c
healthCtx, healthCancel := context.WithTimeout(ctx, 5*time.Second)
if err = grpcClient.CheckServerHealth(healthCtx); err != nil {
if err := grpcClient.CheckServerHealth(healthCtx); err != nil {
healthCancel()
log.Fatalf("gRPC health check failed: %v", err)
}
@@ -109,39 +109,14 @@ func main() {
go func() {
identity := config.Getenv("DOMAIN", "localhost")
if err = grpcClient.SubscribeEvents(ctx, identity, nodeToken); err != nil {
if err := grpcClient.SubscribeEvents(ctx, identity, nodeToken); err != nil {
errChan <- fmt.Errorf("failed to subscribe to events: %w", err)
}
}()
}
portManager := port.New()
rawRange := config.Getenv("ALLOWED_PORTS", "")
if rawRange != "" {
splitRange := strings.Split(rawRange, "-")
if len(splitRange) == 2 {
var start, end uint64
start, err = strconv.ParseUint(splitRange[0], 10, 16)
if err != nil {
log.Fatalf("Failed to parse start port: %s", err)
}
end, err = strconv.ParseUint(splitRange[1], 10, 16)
if err != nil {
log.Fatalf("Failed to parse end port: %s", err)
}
if err = portManager.AddPortRange(uint16(start), uint16(end)); err != nil {
log.Fatalf("Failed to add port range: %s", err)
}
log.Printf("PortRegistry range configured: %d-%d", start, end)
} else {
log.Printf("Invalid ALLOWED_PORTS format, expected 'start-end', got: %s", rawRange)
}
}
var app server.Server
go func() {
app, err = server.New(sshConfig, sessionRegistry, grpcClient, portManager)
app, err := server.NewServer(sshConfig, sessionRegistry, grpcClient)
if err != nil {
errChan <- fmt.Errorf("failed to start server: %s", err)
return
@@ -150,7 +125,7 @@ func main() {
}()
select {
case err = <-errChan:
case err := <-errChan:
log.Printf("error happen : %s", err)
case sig := <-shutdownChan:
log.Printf("received signal %s, shutting down", sig)
@@ -158,14 +133,8 @@ func main() {
cancel()
if app != nil {
if err = app.Close(); err != nil {
log.Printf("failed to close server : %s", err)
}
}
if grpcClient != nil {
if err = grpcClient.Close(); err != nil {
if err := grpcClient.Close(); err != nil {
log.Printf("failed to close grpc conn : %s", err)
}
}
+8
View File
@@ -0,0 +1,8 @@
module.exports = {
"endpoint": "https://git.fossy.my.id/api/v1",
"gitAuthor": "Renovate-Clanker <renovate-bot@fossy.my.id>",
"platform": "gitea",
"onboardingConfigFileName": "renovate.json",
"autodiscover": true,
"optimizeForDisabled": true,
};
+7 -11
View File
@@ -13,7 +13,6 @@ import (
"time"
"tunnel_pls/internal/config"
"tunnel_pls/session"
"tunnel_pls/types"
"golang.org/x/crypto/ssh"
)
@@ -314,10 +313,7 @@ func (hs *httpServer) handler(conn net.Conn) {
return
}
sshSession, err := hs.sessionRegistry.Get(types.SessionKey{
Id: slug,
Type: types.HTTP,
})
sshSession, err := hs.sessionRegistry.Get(slug)
if err != nil {
_, err = conn.Write([]byte("HTTP/1.1 301 Moved Permanently\r\n" +
fmt.Sprintf("Location: https://tunnl.live/tunnel-not-found?slug=%s\r\n", slug) +
@@ -335,8 +331,8 @@ func (hs *httpServer) handler(conn net.Conn) {
return
}
func forwardRequest(cw HTTPWriter, initialRequest RequestHeaderManager, sshSession session.Session) {
payload := sshSession.Forwarder().CreateForwardedTCPIPPayload(cw.GetRemoteAddr())
func forwardRequest(cw HTTPWriter, initialRequest RequestHeaderManager, sshSession *session.SSHSession) {
payload := sshSession.GetForwarder().CreateForwardedTCPIPPayload(cw.GetRemoteAddr())
type channelResult struct {
channel ssh.Channel
@@ -346,7 +342,7 @@ func forwardRequest(cw HTTPWriter, initialRequest RequestHeaderManager, sshSessi
resultChan := make(chan channelResult, 1)
go func() {
channel, reqs, err := sshSession.Lifecycle().Connection().OpenChannel("forwarded-tcpip", payload)
channel, reqs, err := sshSession.GetLifecycle().GetConnection().OpenChannel("forwarded-tcpip", payload)
resultChan <- channelResult{channel, reqs, err}
}()
@@ -357,14 +353,14 @@ func forwardRequest(cw HTTPWriter, initialRequest RequestHeaderManager, sshSessi
case result := <-resultChan:
if result.err != nil {
log.Printf("Failed to open forwarded-tcpip channel: %v", result.err)
sshSession.Forwarder().WriteBadGatewayResponse(cw.GetWriter())
sshSession.GetForwarder().WriteBadGatewayResponse(cw.GetWriter())
return
}
channel = result.channel
reqs = result.reqs
case <-time.After(5 * time.Second):
log.Printf("Timeout opening forwarded-tcpip channel")
sshSession.Forwarder().WriteBadGatewayResponse(cw.GetWriter())
sshSession.GetForwarder().WriteBadGatewayResponse(cw.GetWriter())
return
}
@@ -390,6 +386,6 @@ func forwardRequest(cw HTTPWriter, initialRequest RequestHeaderManager, sshSessi
return
}
sshSession.Forwarder().HandleConnection(cw, channel, cw.GetRemoteAddr())
sshSession.GetForwarder().HandleConnection(cw, channel, cw.GetRemoteAddr())
return
}
+1 -5
View File
@@ -9,7 +9,6 @@ import (
"net"
"strings"
"tunnel_pls/internal/config"
"tunnel_pls/types"
)
func (hs *httpServer) ListenAndServeTLS() error {
@@ -90,10 +89,7 @@ func (hs *httpServer) handlerTLS(conn net.Conn) {
return
}
sshSession, err := hs.sessionRegistry.Get(types.SessionKey{
Id: slug,
Type: types.HTTP,
})
sshSession, err := hs.sessionRegistry.Get(slug)
if err != nil {
_, err = conn.Write([]byte("HTTP/1.1 301 Moved Permanently\r\n" +
fmt.Sprintf("Location: https://tunnl.live/tunnel-not-found?slug=%s\r\n", slug) +
+22 -39
View File
@@ -2,32 +2,24 @@ package server
import (
"context"
"errors"
"fmt"
"log"
"net"
"time"
"tunnel_pls/internal/config"
"tunnel_pls/internal/grpc/client"
"tunnel_pls/internal/port"
"tunnel_pls/session"
"golang.org/x/crypto/ssh"
)
type Server interface {
Start()
Close() error
}
type server struct {
listener net.Listener
type Server struct {
conn *net.Listener
config *ssh.ServerConfig
grpcClient client.Client
sessionRegistry session.Registry
portRegistry port.Registry
grpcClient *client.Client
}
func New(sshConfig *ssh.ServerConfig, sessionRegistry session.Registry, grpcClient client.Client, portRegistry port.Registry) (Server, error) {
func NewServer(sshConfig *ssh.ServerConfig, sessionRegistry session.Registry, grpcClient *client.Client) (*Server, error) {
listener, err := net.Listen("tcp", fmt.Sprintf(":%s", config.Getenv("PORT", "2200")))
if err != nil {
log.Fatalf("failed to listen on port 2200: %v", err)
@@ -49,24 +41,19 @@ func New(sshConfig *ssh.ServerConfig, sessionRegistry session.Registry, grpcClie
}
}
return &server{
listener: listener,
return &Server{
conn: &listener,
config: sshConfig,
grpcClient: grpcClient,
sessionRegistry: sessionRegistry,
portRegistry: portRegistry,
grpcClient: grpcClient,
}, nil
}
func (s *server) Start() {
func (s *Server) Start() {
log.Println("SSH server is starting on port 2200...")
for {
conn, err := s.listener.Accept()
conn, err := (*s.conn).Accept()
if err != nil {
if errors.Is(err, net.ErrClosed) {
log.Println("listener closed, stopping server")
return
}
log.Printf("failed to accept connection: %v", err)
continue
}
@@ -75,38 +62,34 @@ func (s *server) Start() {
}
}
func (s *server) Close() error {
return s.listener.Close()
}
func (s *server) handleConnection(conn net.Conn) {
func (s *Server) handleConnection(conn net.Conn) {
sshConn, chans, forwardingReqs, err := ssh.NewServerConn(conn, s.config)
defer func(sshConn *ssh.ServerConn) {
err = sshConn.Close()
if err != nil {
log.Printf("failed to close SSH server: %v", err)
}
}(sshConn)
if err != nil {
log.Printf("failed to establish SSH connection: %v", err)
err = conn.Close()
err := conn.Close()
if err != nil {
log.Printf("failed to close SSH connection: %v", err)
return
}
return
}
defer func(sshConn *ssh.ServerConn) {
err = sshConn.Close()
if err != nil && !errors.Is(err, net.ErrClosed) {
log.Printf("failed to close SSH server: %v", err)
}
}(sshConn)
ctx := context.Background()
log.Println("SSH connection established:", sshConn.User())
user := "UNAUTHORIZED"
if s.grpcClient != nil {
ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
_, u, _ := s.grpcClient.AuthorizeConn(ctx, sshConn.User())
user = u
cancel()
}
log.Println("SSH connection established:", sshConn.User())
sshSession := session.New(sshConn, forwardingReqs, chans, s.sessionRegistry, s.portRegistry, user)
sshSession := session.New(sshConn, forwardingReqs, chans, s.sessionRegistry, user)
err = sshSession.Start()
if err != nil {
log.Printf("SSH session ended with error: %v", err)
+8 -2
View File
@@ -301,16 +301,22 @@ func (tm *tlsManager) initCertMagic() error {
func (tm *tlsManager) getTLSConfig() *tls.Config {
return &tls.Config{
GetCertificate: tm.getCertificate,
MinVersion: tls.VersionTLS13,
MaxVersion: tls.VersionTLS13,
SessionTicketsDisabled: false,
CipherSuites: []uint16{
tls.TLS_AES_128_GCM_SHA256,
tls.TLS_CHACHA20_POLY1305_SHA256,
},
CurvePreferences: []tls.CurveID{
tls.X25519,
},
SessionTicketsDisabled: false,
ClientAuth: tls.NoClientCert,
NextProtos: nil,
}
}
+40 -31
View File
@@ -30,41 +30,50 @@ func copyWithBuffer(dst io.Writer, src io.Reader) (written int64, err error) {
return io.CopyBuffer(dst, src, buf)
}
type forwarder struct {
type Forwarder struct {
listener net.Listener
tunnelType types.TunnelType
forwardedPort uint16
slug slug.Slug
conn ssh.Conn
slugManager slug.Manager
lifecycle Lifecycle
}
func New(slug slug.Slug, conn ssh.Conn) Forwarder {
return &forwarder{
func NewForwarder(slugManager slug.Manager) *Forwarder {
return &Forwarder{
listener: nil,
tunnelType: types.UNKNOWN,
tunnelType: "",
forwardedPort: 0,
slug: slug,
conn: conn,
slugManager: slugManager,
lifecycle: nil,
}
}
type Forwarder interface {
type Lifecycle interface {
GetConnection() ssh.Conn
}
type ForwardingController interface {
AcceptTCPConnections()
SetType(tunnelType types.TunnelType)
GetTunnelType() types.TunnelType
GetForwardedPort() uint16
SetForwardedPort(port uint16)
SetListener(listener net.Listener)
Listener() net.Listener
TunnelType() types.TunnelType
ForwardedPort() uint16
GetListener() net.Listener
Close() error
HandleConnection(dst io.ReadWriter, src ssh.Channel, remoteAddr net.Addr)
SetLifecycle(lifecycle Lifecycle)
CreateForwardedTCPIPPayload(origin net.Addr) []byte
WriteBadGatewayResponse(dst io.Writer)
AcceptTCPConnections()
Close() error
}
func (f *forwarder) AcceptTCPConnections() {
func (f *Forwarder) SetLifecycle(lifecycle Lifecycle) {
f.lifecycle = lifecycle
}
func (f *Forwarder) AcceptTCPConnections() {
for {
conn, err := f.Listener().Accept()
conn, err := f.GetListener().Accept()
if err != nil {
if errors.Is(err, net.ErrClosed) {
return
@@ -73,7 +82,7 @@ func (f *forwarder) AcceptTCPConnections() {
continue
}
if err = conn.SetDeadline(time.Now().Add(5 * time.Second)); err != nil {
if err := conn.SetDeadline(time.Now().Add(5 * time.Second)); err != nil {
log.Printf("Failed to set connection deadline: %v", err)
if closeErr := conn.Close(); closeErr != nil {
log.Printf("Failed to close connection: %v", closeErr)
@@ -91,7 +100,7 @@ func (f *forwarder) AcceptTCPConnections() {
resultChan := make(chan channelResult, 1)
go func() {
channel, reqs, err := f.conn.OpenChannel("forwarded-tcpip", payload)
channel, reqs, err := f.lifecycle.GetConnection().OpenChannel("forwarded-tcpip", payload)
resultChan <- channelResult{channel, reqs, err}
}()
@@ -105,7 +114,7 @@ func (f *forwarder) AcceptTCPConnections() {
continue
}
if err = conn.SetDeadline(time.Time{}); err != nil {
if err := conn.SetDeadline(time.Time{}); err != nil {
log.Printf("Failed to clear connection deadline: %v", err)
}
@@ -121,7 +130,7 @@ func (f *forwarder) AcceptTCPConnections() {
}
}
func (f *forwarder) HandleConnection(dst io.ReadWriter, src ssh.Channel, remoteAddr net.Addr) {
func (f *Forwarder) HandleConnection(dst io.ReadWriter, src ssh.Channel, remoteAddr net.Addr) {
defer func() {
_, err := io.Copy(io.Discard, src)
if err != nil {
@@ -165,31 +174,31 @@ func (f *forwarder) HandleConnection(dst io.ReadWriter, src ssh.Channel, remoteA
wg.Wait()
}
func (f *forwarder) SetType(tunnelType types.TunnelType) {
func (f *Forwarder) SetType(tunnelType types.TunnelType) {
f.tunnelType = tunnelType
}
func (f *forwarder) TunnelType() types.TunnelType {
func (f *Forwarder) GetTunnelType() types.TunnelType {
return f.tunnelType
}
func (f *forwarder) ForwardedPort() uint16 {
func (f *Forwarder) GetForwardedPort() uint16 {
return f.forwardedPort
}
func (f *forwarder) SetForwardedPort(port uint16) {
func (f *Forwarder) SetForwardedPort(port uint16) {
f.forwardedPort = port
}
func (f *forwarder) SetListener(listener net.Listener) {
func (f *Forwarder) SetListener(listener net.Listener) {
f.listener = listener
}
func (f *forwarder) Listener() net.Listener {
func (f *Forwarder) GetListener() net.Listener {
return f.listener
}
func (f *forwarder) WriteBadGatewayResponse(dst io.Writer) {
func (f *Forwarder) WriteBadGatewayResponse(dst io.Writer) {
_, err := dst.Write(types.BadGatewayResponse)
if err != nil {
log.Printf("failed to write Bad Gateway response: %v", err)
@@ -197,20 +206,20 @@ func (f *forwarder) WriteBadGatewayResponse(dst io.Writer) {
}
}
func (f *forwarder) Close() error {
if f.Listener() != nil {
func (f *Forwarder) Close() error {
if f.GetListener() != nil {
return f.listener.Close()
}
return nil
}
func (f *forwarder) CreateForwardedTCPIPPayload(origin net.Addr) []byte {
func (f *Forwarder) CreateForwardedTCPIPPayload(origin net.Addr) []byte {
var buf bytes.Buffer
host, originPort := parseAddr(origin.String())
writeSSHString(&buf, "localhost")
err := binary.Write(&buf, binary.BigEndian, uint32(f.ForwardedPort()))
err := binary.Write(&buf, binary.BigEndian, uint32(f.GetForwardedPort()))
if err != nil {
log.Printf("Failed to write string to buffer: %v", err)
return nil
+291
View File
@@ -0,0 +1,291 @@
package session
import (
"bytes"
"encoding/binary"
"fmt"
"log"
"net"
portUtil "tunnel_pls/internal/port"
"tunnel_pls/internal/random"
"tunnel_pls/types"
"golang.org/x/crypto/ssh"
)
var blockedReservedPorts = []uint16{1080, 1433, 1521, 1900, 2049, 3306, 3389, 5432, 5900, 6379, 8080, 8443, 9000, 9200, 27017}
func (s *SSHSession) HandleGlobalRequest(GlobalRequest <-chan *ssh.Request) {
for req := range GlobalRequest {
switch req.Type {
case "shell", "pty-req":
err := req.Reply(true, nil)
if err != nil {
log.Println("Failed to reply to request:", err)
return
}
case "window-change":
p := req.Payload
if len(p) < 16 {
log.Println("invalid window-change payload")
err := req.Reply(false, nil)
if err != nil {
log.Println("Failed to reply to request:", err)
return
}
return
}
cols := binary.BigEndian.Uint32(p[0:4])
rows := binary.BigEndian.Uint32(p[4:8])
s.interaction.SetWH(int(cols), int(rows))
err := req.Reply(true, nil)
if err != nil {
log.Println("Failed to reply to request:", err)
return
}
default:
log.Println("Unknown request type:", req.Type)
err := req.Reply(false, nil)
if err != nil {
log.Println("Failed to reply to request:", err)
return
}
}
}
}
func (s *SSHSession) HandleTCPIPForward(req *ssh.Request) {
log.Println("Port forwarding request detected")
reader := bytes.NewReader(req.Payload)
addr, err := readSSHString(reader)
if err != nil {
log.Println("Failed to read address from payload:", err)
err := req.Reply(false, nil)
if err != nil {
log.Println("Failed to reply to request:", err)
return
}
err = s.lifecycle.Close()
if err != nil {
log.Printf("failed to close session: %v", err)
}
return
}
var rawPortToBind uint32
if err := binary.Read(reader, binary.BigEndian, &rawPortToBind); err != nil {
log.Println("Failed to read port from payload:", err)
err := req.Reply(false, nil)
if err != nil {
log.Println("Failed to reply to request:", err)
return
}
err = s.lifecycle.Close()
if err != nil {
log.Printf("failed to close session: %v", err)
}
return
}
if rawPortToBind > 65535 {
log.Printf("Port %d is larger than allowed port of 65535", rawPortToBind)
err := req.Reply(false, nil)
if err != nil {
log.Println("Failed to reply to request:", err)
return
}
err = s.lifecycle.Close()
if err != nil {
log.Printf("failed to close session: %v", err)
}
return
}
portToBind := uint16(rawPortToBind)
if isBlockedPort(portToBind) {
log.Printf("Port %d is blocked or restricted", portToBind)
err := req.Reply(false, nil)
if err != nil {
log.Println("Failed to reply to request:", err)
return
}
err = s.lifecycle.Close()
if err != nil {
log.Printf("failed to close session: %v", err)
}
return
}
if portToBind == 80 || portToBind == 443 {
s.HandleHTTPForward(req, portToBind)
return
}
if portToBind == 0 {
unassign, success := portUtil.Default.GetUnassignedPort()
portToBind = unassign
if !success {
log.Println("No available port")
err := req.Reply(false, nil)
if err != nil {
log.Println("Failed to reply to request:", err)
return
}
err = s.lifecycle.Close()
if err != nil {
log.Printf("failed to close session: %v", err)
}
return
}
} else if isUse, isExist := portUtil.Default.GetPortStatus(portToBind); isExist && isUse {
log.Printf("Port %d is already in use or restricted", portToBind)
err := req.Reply(false, nil)
if err != nil {
log.Println("Failed to reply to request:", err)
return
}
err = s.lifecycle.Close()
if err != nil {
log.Printf("failed to close session: %v", err)
}
return
}
err = portUtil.Default.SetPortStatus(portToBind, true)
if err != nil {
log.Println("Failed to set port status:", err)
return
}
s.HandleTCPForward(req, addr, portToBind)
}
func (s *SSHSession) HandleHTTPForward(req *ssh.Request, portToBind uint16) {
slug := random.GenerateRandomString(20)
if !s.registry.Register(slug, s) {
log.Printf("Failed to register client with slug: %s", slug)
err := req.Reply(false, nil)
if err != nil {
log.Println("Failed to reply to request:", err)
}
return
}
buf := new(bytes.Buffer)
err := binary.Write(buf, binary.BigEndian, uint32(portToBind))
if err != nil {
log.Println("Failed to write port to buffer:", err)
s.registry.Remove(slug)
err = req.Reply(false, nil)
if err != nil {
log.Println("Failed to reply to request:", err)
}
return
}
log.Printf("HTTP forwarding approved on port: %d", portToBind)
err = req.Reply(true, buf.Bytes())
if err != nil {
log.Println("Failed to reply to request:", err)
s.registry.Remove(slug)
err = req.Reply(false, nil)
if err != nil {
log.Println("Failed to reply to request:", err)
}
return
}
s.forwarder.SetType(types.HTTP)
s.forwarder.SetForwardedPort(portToBind)
s.slugManager.Set(slug)
s.lifecycle.SetStatus(types.RUNNING)
s.interaction.Start()
}
func (s *SSHSession) HandleTCPForward(req *ssh.Request, addr string, portToBind uint16) {
log.Printf("Requested forwarding on %s:%d", addr, portToBind)
listener, err := net.Listen("tcp", fmt.Sprintf("0.0.0.0:%d", portToBind))
if err != nil {
log.Printf("Port %d is already in use or restricted", portToBind)
if setErr := portUtil.Default.SetPortStatus(portToBind, false); setErr != nil {
log.Printf("Failed to reset port status: %v", setErr)
}
err = req.Reply(false, nil)
if err != nil {
log.Println("Failed to reply to request:", err)
return
}
err = s.lifecycle.Close()
if err != nil {
log.Printf("failed to close session: %v", err)
}
return
}
buf := new(bytes.Buffer)
err = binary.Write(buf, binary.BigEndian, uint32(portToBind))
if err != nil {
log.Println("Failed to write port to buffer:", err)
if setErr := portUtil.Default.SetPortStatus(portToBind, false); setErr != nil {
log.Printf("Failed to reset port status: %v", setErr)
}
err = listener.Close()
if err != nil {
log.Printf("Failed to close listener: %s", err)
return
}
return
}
log.Printf("TCP forwarding approved on port: %d", portToBind)
err = req.Reply(true, buf.Bytes())
if err != nil {
log.Println("Failed to reply to request:", err)
if setErr := portUtil.Default.SetPortStatus(portToBind, false); setErr != nil {
log.Printf("Failed to reset port status: %v", setErr)
}
err = listener.Close()
if err != nil {
log.Printf("Failed to close listener: %s", err)
return
}
return
}
s.forwarder.SetType(types.TCP)
s.forwarder.SetListener(listener)
s.forwarder.SetForwardedPort(portToBind)
s.lifecycle.SetStatus(types.RUNNING)
go s.forwarder.AcceptTCPConnections()
s.interaction.Start()
}
func readSSHString(reader *bytes.Reader) (string, error) {
var length uint32
if err := binary.Read(reader, binary.BigEndian, &length); err != nil {
return "", err
}
strBytes := make([]byte, length)
if _, err := reader.Read(strBytes); err != nil {
return "", err
}
return string(strBytes), nil
}
func isBlockedPort(port uint16) bool {
if port == 80 || port == 443 {
return false
}
if port < 1024 && port != 0 {
return true
}
for _, p := range blockedReservedPorts {
if p == port {
return true
}
}
return false
}
-83
View File
@@ -1,83 +0,0 @@
package interaction
import (
"strings"
"github.com/charmbracelet/bubbles/textinput"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
)
func (m *model) comingSoonUpdate(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
m.showingComingSoon = false
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
}
func (m *model) comingSoonView() string {
isCompact := shouldUseCompactLayout(m.width, 60)
var boxPadding int
var boxMargin int
if isCompact {
boxPadding = 1
boxMargin = 1
} else {
boxPadding = 3
boxMargin = 2
}
titleStyle := lipgloss.NewStyle().
Bold(true).
Foreground(lipgloss.Color("#7D56F4")).
PaddingTop(1).
PaddingBottom(1)
messageBoxWidth := getResponsiveWidth(m.width, 10, 30, 60)
messageBoxStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#FAFAFA")).
Background(lipgloss.Color("#1A1A2E")).
Bold(true).
Border(lipgloss.RoundedBorder()).
BorderForeground(lipgloss.Color("#7D56F4")).
Padding(1, boxPadding).
MarginTop(boxMargin).
MarginBottom(boxMargin).
Width(messageBoxWidth).
Align(lipgloss.Center)
helpStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#666666")).
Italic(true).
MarginTop(1)
var b strings.Builder
b.WriteString("\n\n")
var title string
if shouldUseCompactLayout(m.width, 40) {
title = "Coming Soon"
} else {
title = "⏳ Coming Soon"
}
b.WriteString(titleStyle.Render(title))
b.WriteString("\n\n")
var message string
if shouldUseCompactLayout(m.width, 50) {
message = "Coming soon!\nStay tuned."
} else {
message = "🚀 This feature is coming very soon!\n Stay tuned for updates."
}
b.WriteString(messageBoxStyle.Render(message))
b.WriteString("\n\n")
var helpText string
if shouldUseCompactLayout(m.width, 60) {
helpText = "Press any key..."
} else {
helpText = "This message will disappear in 5 seconds or press any key..."
}
b.WriteString(helpStyle.Render(helpText))
return b.String()
}
-83
View File
@@ -1,83 +0,0 @@
package interaction
import (
"strings"
"time"
"github.com/charmbracelet/bubbles/key"
"github.com/charmbracelet/bubbles/textinput"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
)
func (m *model) commandsUpdate(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
var cmd tea.Cmd
switch {
case key.Matches(msg, m.keymap.quit):
m.showingCommands = false
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
case msg.String() == "enter":
selectedItem := m.commandList.SelectedItem()
if selectedItem != nil {
item := selectedItem.(commandItem)
if item.name == "slug" {
m.showingCommands = false
m.editingSlug = true
m.slugInput.SetValue(m.interaction.slug.String())
m.slugInput.Focus()
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
} else if item.name == "tunnel-type" {
m.showingCommands = false
m.showingComingSoon = true
return m, tea.Batch(tickCmd(5*time.Second), tea.ClearScreen, textinput.Blink)
}
m.showingCommands = false
return m, nil
}
case msg.String() == "esc":
m.showingCommands = false
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
}
m.commandList, cmd = m.commandList.Update(msg)
return m, cmd
}
func (m *model) commandsView() string {
isCompact := shouldUseCompactLayout(m.width, 60)
titleStyle := lipgloss.NewStyle().
Bold(true).
Foreground(lipgloss.Color("#7D56F4")).
PaddingTop(1).
PaddingBottom(1)
helpStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#666666")).
Italic(true).
MarginTop(1)
var b strings.Builder
b.WriteString("\n")
var title string
if shouldUseCompactLayout(m.width, 40) {
title = "Commands"
} else {
title = "⚡ Commands"
}
b.WriteString(titleStyle.Render(title))
b.WriteString("\n\n")
b.WriteString(m.commandList.View())
b.WriteString("\n")
var helpText string
if isCompact {
helpText = "↑/↓ Nav • Enter Select • Esc Cancel"
} else {
helpText = "↑/↓ Navigate • Enter Select • Esc Cancel"
}
b.WriteString(helpStyle.Render(helpText))
return b.String()
}
-186
View File
@@ -1,186 +0,0 @@
package interaction
import (
"fmt"
"strings"
"github.com/charmbracelet/bubbles/key"
"github.com/charmbracelet/bubbles/textinput"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
)
func (m *model) dashboardUpdate(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
switch {
case key.Matches(msg, m.keymap.quit):
m.quitting = true
return m, tea.Batch(tea.ClearScreen, textinput.Blink, tea.Quit)
case key.Matches(msg, m.keymap.command):
m.showingCommands = true
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
}
return m, nil
}
func (m *model) dashboardView() string {
titleStyle := lipgloss.NewStyle().
Bold(true).
Foreground(lipgloss.Color("#7D56F4")).
PaddingTop(1)
subtitleStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#888888")).
Italic(true)
urlStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#7D56F4")).
Underline(true).
Italic(true)
urlBoxStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#04B575")).
Bold(true).
Italic(true)
keyHintStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#7D56F4")).
Bold(true)
var b strings.Builder
isCompact := shouldUseCompactLayout(m.width, 85)
var asciiArtMargin int
if isCompact {
asciiArtMargin = 0
} else {
asciiArtMargin = 1
}
asciiArtStyle := lipgloss.NewStyle().
Bold(true).
Foreground(lipgloss.Color("#7D56F4")).
MarginBottom(asciiArtMargin)
var asciiArt string
if shouldUseCompactLayout(m.width, 50) {
asciiArt = "TUNNEL PLS"
} else if isCompact {
asciiArt = `
▀█▀ █ █ █▄ █ █▄ █ ██▀ █ ▄▀▀ █ ▄▀▀
█ ▀▄█ █ ▀█ █ ▀█ █▄▄ █▄▄ ▄█▀ █▄▄ ▄█▀`
} else {
asciiArt = `
████████╗██╗ ██╗███╗ ██╗███╗ ██╗███████╗██╗ ██████╗ ██╗ ███████╗
╚══██╔══╝██║ ██║████╗ ██║████╗ ██║██╔════╝██║ ██╔══██╗██║ ██╔════╝
██║ ██║ ██║██╔██╗ ██║██╔██╗ ██║█████╗ ██║ ██████╔╝██║ ███████╗
██║ ██║ ██║██║╚██╗██║██║╚██╗██║██╔══╝ ██║ ██╔═══╝ ██║ ╚════██║
██║ ╚██████╔╝██║ ╚████║██║ ╚████║███████╗███████╗ ██║ ███████╗███████║
╚═╝ ╚═════╝ ╚═╝ ╚═══╝╚═╝ ╚═══╝╚══════╝╚══════╝ ╚═╝ ╚══════╝╚══════╝`
}
b.WriteString(asciiArtStyle.Render(asciiArt))
b.WriteString("\n")
if !shouldUseCompactLayout(m.width, 60) {
b.WriteString(subtitleStyle.Render("Secure tunnel service by Bagas • "))
b.WriteString(urlStyle.Render("https://fossy.my.id"))
b.WriteString("\n\n")
} else {
b.WriteString("\n")
}
boxMaxWidth := getResponsiveWidth(m.width, 10, 40, 80)
var boxPadding int
var boxMargin int
if isCompact {
boxPadding = 1
boxMargin = 1
} else {
boxPadding = 2
boxMargin = 2
}
responsiveInfoBox := lipgloss.NewStyle().
Border(lipgloss.RoundedBorder()).
BorderForeground(lipgloss.Color("#7D56F4")).
Padding(1, boxPadding).
MarginTop(boxMargin).
MarginBottom(boxMargin).
Width(boxMaxWidth)
authenticatedUser := m.interaction.user
userInfoStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#FAFAFA")).
Bold(true)
sectionHeaderStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#888888")).
Bold(true)
addressStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#FAFAFA"))
var infoContent string
if shouldUseCompactLayout(m.width, 70) {
infoContent = fmt.Sprintf("👤 %s\n\n%s\n%s",
userInfoStyle.Render(authenticatedUser),
sectionHeaderStyle.Render("🌐 FORWARDING ADDRESS:"),
addressStyle.Render(fmt.Sprintf(" %s", urlBoxStyle.Render(m.getTunnelURL()))))
} else {
infoContent = fmt.Sprintf("👤 Authenticated as: %s\n\n%s\n %s",
userInfoStyle.Render(authenticatedUser),
sectionHeaderStyle.Render("🌐 FORWARDING ADDRESS:"),
addressStyle.Render(urlBoxStyle.Render(m.getTunnelURL())))
}
b.WriteString(responsiveInfoBox.Render(infoContent))
b.WriteString("\n")
var quickActionsTitle string
if shouldUseCompactLayout(m.width, 50) {
quickActionsTitle = "Actions"
} else if isCompact {
quickActionsTitle = "Quick Actions"
} else {
quickActionsTitle = "✨ Quick Actions"
}
b.WriteString(titleStyle.Render(quickActionsTitle))
b.WriteString("\n")
var featureMargin int
if isCompact {
featureMargin = 1
} else {
featureMargin = 2
}
compactFeatureStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#FAFAFA")).
MarginLeft(featureMargin)
var commandsText string
var quitText string
if shouldUseCompactLayout(m.width, 60) {
commandsText = fmt.Sprintf(" %s Commands", keyHintStyle.Render("[C]"))
quitText = fmt.Sprintf(" %s Quit", keyHintStyle.Render("[Q]"))
} else {
commandsText = fmt.Sprintf(" %s Open commands menu", keyHintStyle.Render("[C]"))
quitText = fmt.Sprintf(" %s Quit application", keyHintStyle.Render("[Q]"))
}
b.WriteString(compactFeatureStyle.Render(commandsText))
b.WriteString("\n")
b.WriteString(compactFeatureStyle.Render(quitText))
if !shouldUseCompactLayout(m.width, 70) {
b.WriteString("\n\n")
footerStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#666666")).
Italic(true)
b.WriteString(footerStyle.Render("Press 'C' to customize your tunnel settings"))
}
return b.String()
}
+616 -59
View File
@@ -2,8 +2,12 @@ package interaction
import (
"context"
"fmt"
"log"
"strings"
"time"
"tunnel_pls/internal/config"
"tunnel_pls/internal/random"
"tunnel_pls/session/slug"
"tunnel_pls/types"
@@ -17,56 +21,37 @@ import (
"golang.org/x/crypto/ssh"
)
type Interaction interface {
Mode() types.Mode
SetChannel(channel ssh.Channel)
SetMode(m types.Mode)
SetWH(w, h int)
Start()
Redraw()
Send(message string) error
type Lifecycle interface {
Close() error
}
type SessionRegistry interface {
Update(user string, oldKey, newKey types.SessionKey) error
type Controller interface {
SetChannel(channel ssh.Channel)
SetLifecycle(lifecycle Lifecycle)
SetSlugModificator(func(oldSlug, newSlug string) error)
Start()
SetWH(w, h int)
Redraw()
}
type Forwarder interface {
Close() error
TunnelType() types.TunnelType
ForwardedPort() uint16
GetTunnelType() types.TunnelType
GetForwardedPort() uint16
}
type CloseFunc func() error
type interaction struct {
type Interaction struct {
channel ssh.Channel
slug slug.Slug
slugManager slug.Manager
forwarder Forwarder
closeFunc CloseFunc
user string
sessionRegistry SessionRegistry
lifecycle Lifecycle
updateClientSlug func(oldSlug, newSlug string) error
program *tea.Program
ctx context.Context
cancel context.CancelFunc
mode types.Mode
}
func (i *interaction) SetMode(m types.Mode) {
i.mode = m
}
func (i *interaction) Mode() types.Mode {
return i.mode
}
func (i *interaction) Send(message string) error {
if i.channel != nil {
_, err := i.channel.Write([]byte(message))
return err
}
return nil
}
func (i *interaction) SetWH(w, h int) {
func (i *Interaction) SetWH(w, h int) {
if i.program != nil {
i.program.Send(tea.WindowSizeMsg{
Width: w,
@@ -75,26 +60,72 @@ func (i *interaction) SetWH(w, h int) {
}
}
func New(slug slug.Slug, forwarder Forwarder, sessionRegistry SessionRegistry, user string, closeFunc CloseFunc) Interaction {
type commandItem struct {
name string
desc string
}
type model struct {
domain string
protocol string
tunnelType types.TunnelType
port uint16
keymap keymap
help help.Model
quitting bool
showingCommands bool
editingSlug bool
showingComingSoon bool
commandList list.Model
slugInput textinput.Model
slugError string
interaction *Interaction
width int
height int
}
func (m *model) getTunnelURL() string {
if m.tunnelType == types.HTTP {
return buildURL(m.protocol, m.interaction.slugManager.Get(), m.domain)
}
return fmt.Sprintf("tcp://%s:%d", m.domain, m.port)
}
type keymap struct {
quit key.Binding
command key.Binding
random key.Binding
}
type tickMsg time.Time
func NewInteraction(slugManager slug.Manager, forwarder Forwarder) *Interaction {
ctx, cancel := context.WithCancel(context.Background())
return &interaction{
return &Interaction{
channel: nil,
slug: slug,
slugManager: slugManager,
forwarder: forwarder,
closeFunc: closeFunc,
user: user,
sessionRegistry: sessionRegistry,
lifecycle: nil,
updateClientSlug: nil,
program: nil,
ctx: ctx,
cancel: cancel,
}
}
func (i *interaction) SetChannel(channel ssh.Channel) {
func (i *Interaction) SetLifecycle(lifecycle Lifecycle) {
i.lifecycle = lifecycle
}
func (i *Interaction) SetChannel(channel ssh.Channel) {
i.channel = channel
}
func (i *interaction) Stop() {
func (i *Interaction) SetSlugModificator(modificator func(oldSlug, newSlug string) error) {
i.updateClientSlug = modificator
}
func (i *Interaction) Stop() {
if i.cancel != nil {
i.cancel()
}
@@ -104,7 +135,47 @@ func (i *interaction) Stop() {
}
}
func getResponsiveWidth(screenWidth, padding, minWidth, maxWidth int) int {
width := screenWidth - padding
if width > maxWidth {
width = maxWidth
}
if width < minWidth {
width = minWidth
}
return width
}
func shouldUseCompactLayout(width int, threshold int) bool {
return width < threshold
}
func truncateString(s string, maxLength int) string {
if len(s) <= maxLength {
return s
}
if maxLength < 4 {
return s[:maxLength]
}
return s[:maxLength-3] + "..."
}
func (i commandItem) FilterValue() string { return i.name }
func (i commandItem) Title() string { return i.name }
func (i commandItem) Description() string { return i.desc }
func tickCmd(d time.Duration) tea.Cmd {
return tea.Tick(d, func(t time.Time) tea.Msg {
return tickMsg(t)
})
}
func (m *model) Init() tea.Cmd {
return tea.Batch(textinput.Blink, tea.WindowSize())
}
func (m *model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
var cmd tea.Cmd
switch msg := msg.(type) {
case tickMsg:
@@ -130,53 +201,533 @@ func (m *model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
case tea.KeyMsg:
if m.showingComingSoon {
return m.comingSoonUpdate(msg)
m.showingComingSoon = false
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
}
if m.editingSlug {
return m.slugUpdate(msg)
if m.tunnelType != types.HTTP {
m.editingSlug = false
m.slugError = ""
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
}
switch msg.String() {
case "esc":
m.editingSlug = false
m.slugError = ""
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
case "enter":
inputValue := m.slugInput.Value()
if err := m.interaction.updateClientSlug(m.interaction.slugManager.Get(), inputValue); err != nil {
m.slugError = err.Error()
return m, nil
}
m.editingSlug = false
m.slugError = ""
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
case "ctrl+c":
m.editingSlug = false
m.slugError = ""
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
default:
if key.Matches(msg, m.keymap.random) {
newSubdomain := generateRandomSubdomain()
m.slugInput.SetValue(newSubdomain)
m.slugError = ""
m.slugInput, cmd = m.slugInput.Update(msg)
return m, cmd
}
m.slugError = ""
m.slugInput, cmd = m.slugInput.Update(msg)
return m, cmd
}
}
if m.showingCommands {
return m.commandsUpdate(msg)
switch {
case key.Matches(msg, m.keymap.quit):
m.showingCommands = false
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
case msg.String() == "enter":
selectedItem := m.commandList.SelectedItem()
if selectedItem != nil {
item := selectedItem.(commandItem)
if item.name == "slug" {
m.showingCommands = false
m.editingSlug = true
m.slugInput.SetValue(m.interaction.slugManager.Get())
m.slugInput.Focus()
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
} else if item.name == "tunnel-type" {
m.showingCommands = false
m.showingComingSoon = true
return m, tea.Batch(tickCmd(5*time.Second), tea.ClearScreen, textinput.Blink)
}
m.showingCommands = false
return m, nil
}
case msg.String() == "esc":
m.showingCommands = false
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
}
m.commandList, cmd = m.commandList.Update(msg)
return m, cmd
}
return m.dashboardUpdate(msg)
switch {
case key.Matches(msg, m.keymap.quit):
m.quitting = true
return m, tea.Batch(tea.ClearScreen, textinput.Blink, tea.Quit)
case key.Matches(msg, m.keymap.command):
m.showingCommands = true
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
}
}
return m, nil
}
func (i *interaction) Redraw() {
func (i *Interaction) Redraw() {
if i.program != nil {
i.program.Send(tea.ClearScreen())
}
}
func (m *model) helpView() string {
return "\n" + m.help.ShortHelpView([]key.Binding{
m.keymap.command,
m.keymap.quit,
})
}
func (m *model) View() string {
if m.quitting {
return ""
}
if m.showingComingSoon {
return m.comingSoonView()
isCompact := shouldUseCompactLayout(m.width, 60)
var boxPadding int
var boxMargin int
if isCompact {
boxPadding = 1
boxMargin = 1
} else {
boxPadding = 3
boxMargin = 2
}
titleStyle := lipgloss.NewStyle().
Bold(true).
Foreground(lipgloss.Color("#7D56F4")).
PaddingTop(1).
PaddingBottom(1)
messageBoxWidth := getResponsiveWidth(m.width, 10, 30, 60)
messageBoxStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#FAFAFA")).
Background(lipgloss.Color("#1A1A2E")).
Bold(true).
Border(lipgloss.RoundedBorder()).
BorderForeground(lipgloss.Color("#7D56F4")).
Padding(1, boxPadding).
MarginTop(boxMargin).
MarginBottom(boxMargin).
Width(messageBoxWidth).
Align(lipgloss.Center)
helpStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#666666")).
Italic(true).
MarginTop(1)
var b strings.Builder
b.WriteString("\n\n")
var title string
if shouldUseCompactLayout(m.width, 40) {
title = "Coming Soon"
} else {
title = "⏳ Coming Soon"
}
b.WriteString(titleStyle.Render(title))
b.WriteString("\n\n")
var message string
if shouldUseCompactLayout(m.width, 50) {
message = "Coming soon!\nStay tuned."
} else {
message = "🚀 This feature is coming very soon!\n Stay tuned for updates."
}
b.WriteString(messageBoxStyle.Render(message))
b.WriteString("\n\n")
var helpText string
if shouldUseCompactLayout(m.width, 60) {
helpText = "Press any key..."
} else {
helpText = "This message will disappear in 5 seconds or press any key..."
}
b.WriteString(helpStyle.Render(helpText))
return b.String()
}
if m.editingSlug {
return m.slugView()
isCompact := shouldUseCompactLayout(m.width, 70)
isVeryCompact := shouldUseCompactLayout(m.width, 50)
var boxPadding int
var boxMargin int
if isVeryCompact {
boxPadding = 1
boxMargin = 1
} else if isCompact {
boxPadding = 1
boxMargin = 1
} else {
boxPadding = 2
boxMargin = 2
}
titleStyle := lipgloss.NewStyle().
Bold(true).
Foreground(lipgloss.Color("#7D56F4")).
PaddingTop(1).
PaddingBottom(1)
instructionStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#FAFAFA")).
MarginTop(1)
inputBoxStyle := lipgloss.NewStyle().
Border(lipgloss.RoundedBorder()).
BorderForeground(lipgloss.Color("#7D56F4")).
Padding(1, boxPadding).
MarginTop(boxMargin).
MarginBottom(boxMargin)
helpStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#666666")).
Italic(true).
MarginTop(1)
errorBoxStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#FF0000")).
Background(lipgloss.Color("#3D0000")).
Bold(true).
Border(lipgloss.RoundedBorder()).
BorderForeground(lipgloss.Color("#FF0000")).
Padding(0, boxPadding).
MarginTop(1).
MarginBottom(1)
rulesBoxWidth := getResponsiveWidth(m.width, 10, 30, 60)
rulesBoxStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#FAFAFA")).
Border(lipgloss.RoundedBorder()).
BorderForeground(lipgloss.Color("#7D56F4")).
Padding(0, boxPadding).
MarginTop(1).
MarginBottom(1).
Width(rulesBoxWidth)
var b strings.Builder
var title string
if isVeryCompact {
title = "Edit Subdomain"
} else {
title = "🔧 Edit Subdomain"
}
b.WriteString(titleStyle.Render(title))
b.WriteString("\n\n")
if m.tunnelType != types.HTTP {
warningBoxWidth := getResponsiveWidth(m.width, 10, 30, 60)
warningBoxStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#FFA500")).
Background(lipgloss.Color("#3D2000")).
Bold(true).
Border(lipgloss.RoundedBorder()).
BorderForeground(lipgloss.Color("#FFA500")).
Padding(1, boxPadding).
MarginTop(boxMargin).
MarginBottom(boxMargin).
Width(warningBoxWidth)
var warningText string
if isVeryCompact {
warningText = "⚠️ TCP tunnels don't support custom subdomains."
} else {
warningText = "⚠️ TCP tunnels cannot have custom subdomains. Only HTTP/HTTPS tunnels support subdomain customization."
}
b.WriteString(warningBoxStyle.Render(warningText))
b.WriteString("\n\n")
var helpText string
if isVeryCompact {
helpText = "Press any key to go back"
} else {
helpText = "Press Enter or Esc to go back"
}
b.WriteString(helpStyle.Render(helpText))
return b.String()
}
var rulesContent string
if isVeryCompact {
rulesContent = "Rules:\n3-20 chars\na-z, 0-9, -\nNo leading/trailing -"
} else if isCompact {
rulesContent = "📋 Rules:\n • 3-20 chars\n • a-z, 0-9, -\n • No leading/trailing -"
} else {
rulesContent = "📋 Rules: \n\t• 3-20 chars \n\t• a-z, 0-9, - \n\t• No leading/trailing -"
}
b.WriteString(rulesBoxStyle.Render(rulesContent))
b.WriteString("\n")
var instruction string
if isVeryCompact {
instruction = "Custom subdomain:"
} else {
instruction = "Enter your custom subdomain:"
}
b.WriteString(instructionStyle.Render(instruction))
b.WriteString("\n")
if m.slugError != "" {
errorInputBoxStyle := lipgloss.NewStyle().
Border(lipgloss.RoundedBorder()).
BorderForeground(lipgloss.Color("#FF0000")).
Padding(1, boxPadding).
MarginTop(boxMargin).
MarginBottom(1)
b.WriteString(errorInputBoxStyle.Render(m.slugInput.View()))
b.WriteString("\n")
b.WriteString(errorBoxStyle.Render("❌ " + m.slugError))
b.WriteString("\n")
} else {
b.WriteString(inputBoxStyle.Render(m.slugInput.View()))
b.WriteString("\n")
}
previewURL := buildURL(m.protocol, m.slugInput.Value(), m.domain)
previewWidth := getResponsiveWidth(m.width, 10, 30, 80)
if len(previewURL) > previewWidth-10 {
previewURL = truncateString(previewURL, previewWidth-10)
}
previewStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#04B575")).
Italic(true).
Width(previewWidth)
b.WriteString(previewStyle.Render(fmt.Sprintf("Preview: %s", previewURL)))
b.WriteString("\n")
var helpText string
if isVeryCompact {
helpText = "Enter: save • CTRL+R: random • Esc: cancel"
} else {
helpText = "Press Enter to save • CTRL+R for random • Esc to cancel"
}
b.WriteString(helpStyle.Render(helpText))
return b.String()
}
if m.showingCommands {
return m.commandsView()
isCompact := shouldUseCompactLayout(m.width, 60)
titleStyle := lipgloss.NewStyle().
Bold(true).
Foreground(lipgloss.Color("#7D56F4")).
PaddingTop(1).
PaddingBottom(1)
helpStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#666666")).
Italic(true).
MarginTop(1)
var b strings.Builder
b.WriteString("\n")
var title string
if shouldUseCompactLayout(m.width, 40) {
title = "Commands"
} else {
title = "⚡ Commands"
}
b.WriteString(titleStyle.Render(title))
b.WriteString("\n\n")
b.WriteString(m.commandList.View())
b.WriteString("\n")
var helpText string
if isCompact {
helpText = "↑/↓ Nav • Enter Select • Esc Cancel"
} else {
helpText = "↑/↓ Navigate • Enter Select • Esc Cancel"
}
b.WriteString(helpStyle.Render(helpText))
return b.String()
}
return m.dashboardView()
titleStyle := lipgloss.NewStyle().
Bold(true).
Foreground(lipgloss.Color("#7D56F4")).
PaddingTop(1)
subtitleStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#888888")).
Italic(true)
urlStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#7D56F4")).
Underline(true).
Italic(true)
urlBoxStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#04B575")).
Bold(true).
Italic(true)
keyHintStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#7D56F4")).
Bold(true)
var b strings.Builder
isCompact := shouldUseCompactLayout(m.width, 85)
var asciiArtMargin int
if isCompact {
asciiArtMargin = 0
} else {
asciiArtMargin = 1
}
func (i *interaction) Start() {
if i.mode == types.HEADLESS {
return
asciiArtStyle := lipgloss.NewStyle().
Bold(true).
Foreground(lipgloss.Color("#7D56F4")).
MarginBottom(asciiArtMargin)
var asciiArt string
if shouldUseCompactLayout(m.width, 50) {
asciiArt = "TUNNEL PLS"
} else if isCompact {
asciiArt = `
▀█▀ █ █ █▄ █ █▄ █ ██▀ █ ▄▀▀ █ ▄▀▀
█ ▀▄█ █ ▀█ █ ▀█ █▄▄ █▄▄ ▄█▀ █▄▄ ▄█▀`
} else {
asciiArt = `
████████╗██╗ ██╗███╗ ██╗███╗ ██╗███████╗██╗ ██████╗ ██╗ ███████╗
╚══██╔══╝██║ ██║████╗ ██║████╗ ██║██╔════╝██║ ██╔══██╗██║ ██╔════╝
██║ ██║ ██║██╔██╗ ██║██╔██╗ ██║█████╗ ██║ ██████╔╝██║ ███████╗
██║ ██║ ██║██║╚██╗██║██║╚██╗██║██╔══╝ ██║ ██╔═══╝ ██║ ╚════██║
██║ ╚██████╔╝██║ ╚████║██║ ╚████║███████╗███████╗ ██║ ███████╗███████║
╚═╝ ╚═════╝ ╚═╝ ╚═══╝╚═╝ ╚═══╝╚══════╝╚══════╝ ╚═╝ ╚══════╝╚══════╝`
}
b.WriteString(asciiArtStyle.Render(asciiArt))
b.WriteString("\n")
if !shouldUseCompactLayout(m.width, 60) {
b.WriteString(subtitleStyle.Render("Secure tunnel service by Bagas • "))
b.WriteString(urlStyle.Render("https://fossy.my.id"))
b.WriteString("\n\n")
} else {
b.WriteString("\n")
}
boxMaxWidth := getResponsiveWidth(m.width, 10, 40, 80)
var boxPadding int
var boxMargin int
if isCompact {
boxPadding = 1
boxMargin = 1
} else {
boxPadding = 2
boxMargin = 2
}
responsiveInfoBox := lipgloss.NewStyle().
Border(lipgloss.RoundedBorder()).
BorderForeground(lipgloss.Color("#7D56F4")).
Padding(1, boxPadding).
MarginTop(boxMargin).
MarginBottom(boxMargin).
Width(boxMaxWidth)
urlDisplay := m.getTunnelURL()
if shouldUseCompactLayout(m.width, 80) && len(urlDisplay) > m.width-20 {
maxLen := m.width - 25
if maxLen > 10 {
urlDisplay = truncateString(urlDisplay, maxLen)
}
}
var infoContent string
if shouldUseCompactLayout(m.width, 70) {
infoContent = fmt.Sprintf("🌐 %s", urlBoxStyle.Render(urlDisplay))
} else if isCompact {
infoContent = fmt.Sprintf("🌐 Forwarding to:\n\n %s", urlBoxStyle.Render(urlDisplay))
} else {
infoContent = fmt.Sprintf("🌐 F O R W A R D I N G T O:\n\n %s", urlBoxStyle.Render(urlDisplay))
}
b.WriteString(responsiveInfoBox.Render(infoContent))
b.WriteString("\n")
var quickActionsTitle string
if shouldUseCompactLayout(m.width, 50) {
quickActionsTitle = "Actions"
} else if isCompact {
quickActionsTitle = "Quick Actions"
} else {
quickActionsTitle = "✨ Quick Actions"
}
b.WriteString(titleStyle.Render(quickActionsTitle))
b.WriteString("\n")
var featureMargin int
if isCompact {
featureMargin = 1
} else {
featureMargin = 2
}
compactFeatureStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#FAFAFA")).
MarginLeft(featureMargin)
var commandsText string
var quitText string
if shouldUseCompactLayout(m.width, 60) {
commandsText = fmt.Sprintf(" %s Commands", keyHintStyle.Render("[C]"))
quitText = fmt.Sprintf(" %s Quit", keyHintStyle.Render("[Q]"))
} else {
commandsText = fmt.Sprintf(" %s Open commands menu", keyHintStyle.Render("[C]"))
quitText = fmt.Sprintf(" %s Quit application", keyHintStyle.Render("[Q]"))
}
b.WriteString(compactFeatureStyle.Render(commandsText))
b.WriteString("\n")
b.WriteString(compactFeatureStyle.Render(quitText))
if !shouldUseCompactLayout(m.width, 70) {
b.WriteString("\n\n")
footerStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#666666")).
Italic(true)
b.WriteString(footerStyle.Render("Press 'C' to customize your tunnel settings"))
}
return b.String()
}
func (i *Interaction) Start() {
lipgloss.SetColorProfile(termenv.TrueColor)
domain := config.Getenv("DOMAIN", "localhost")
@@ -185,8 +736,8 @@ func (i *interaction) Start() {
protocol = "https"
}
tunnelType := i.forwarder.TunnelType()
port := i.forwarder.ForwardedPort()
tunnelType := i.forwarder.GetTunnelType()
port := i.forwarder.GetForwardedPort()
items := []list.Item{
commandItem{name: "slug", desc: "Set custom subdomain"},
@@ -250,9 +801,15 @@ func (i *interaction) Start() {
}
i.program.Kill()
i.program = nil
if i.closeFunc != nil {
if err := i.closeFunc(); err != nil {
if err := m.interaction.lifecycle.Close(); err != nil {
log.Printf("Cannot close session: %s \n", err)
}
}
func buildURL(protocol, subdomain, domain string) string {
return fmt.Sprintf("%s://%s.%s", protocol, subdomain, domain)
}
func generateRandomSubdomain() string {
return random.GenerateRandomString(20)
}
-95
View File
@@ -1,95 +0,0 @@
package interaction
import (
"fmt"
"time"
"tunnel_pls/types"
"github.com/charmbracelet/bubbles/help"
"github.com/charmbracelet/bubbles/key"
"github.com/charmbracelet/bubbles/list"
"github.com/charmbracelet/bubbles/textinput"
tea "github.com/charmbracelet/bubbletea"
)
type commandItem struct {
name string
desc string
}
func (i commandItem) FilterValue() string { return i.name }
func (i commandItem) Title() string { return i.name }
func (i commandItem) Description() string { return i.desc }
type model struct {
domain string
protocol string
tunnelType types.TunnelType
port uint16
keymap keymap
help help.Model
quitting bool
showingCommands bool
editingSlug bool
showingComingSoon bool
commandList list.Model
slugInput textinput.Model
slugError string
interaction *interaction
width int
height int
}
func (m *model) getTunnelURL() string {
if m.tunnelType == types.HTTP {
return buildURL(m.protocol, m.interaction.slug.String(), m.domain)
}
return fmt.Sprintf("tcp://%s:%d", m.domain, m.port)
}
type keymap struct {
quit key.Binding
command key.Binding
random key.Binding
}
type tickMsg time.Time
func (m *model) Init() tea.Cmd {
return tea.Batch(textinput.Blink, tea.WindowSize())
}
func getResponsiveWidth(screenWidth, padding, minWidth, maxWidth int) int {
width := screenWidth - padding
if width > maxWidth {
width = maxWidth
}
if width < minWidth {
width = minWidth
}
return width
}
func shouldUseCompactLayout(width int, threshold int) bool {
return width < threshold
}
func truncateString(s string, maxLength int) string {
if len(s) <= maxLength {
return s
}
if maxLength < 4 {
return s[:maxLength]
}
return s[:maxLength-3] + "..."
}
func tickCmd(d time.Duration) tea.Cmd {
return tea.Tick(d, func(t time.Time) tea.Msg {
return tickMsg(t)
})
}
func buildURL(protocol, subdomain, domain string) string {
return fmt.Sprintf("%s://%s.%s", protocol, subdomain, domain)
}
-224
View File
@@ -1,224 +0,0 @@
package interaction
import (
"fmt"
"strings"
"tunnel_pls/internal/random"
"tunnel_pls/types"
"github.com/charmbracelet/bubbles/key"
"github.com/charmbracelet/bubbles/textinput"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
)
func (m *model) slugUpdate(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
var cmd tea.Cmd
if m.tunnelType != types.HTTP {
m.editingSlug = false
m.slugError = ""
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
}
switch msg.String() {
case "esc":
m.editingSlug = false
m.slugError = ""
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
case "enter":
inputValue := m.slugInput.Value()
if err := m.interaction.sessionRegistry.Update(m.interaction.user, types.SessionKey{
Id: m.interaction.slug.String(),
Type: types.HTTP,
}, types.SessionKey{
Id: inputValue,
Type: types.HTTP,
}); err != nil {
m.slugError = err.Error()
return m, nil
}
m.editingSlug = false
m.slugError = ""
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
case "ctrl+c":
m.editingSlug = false
m.slugError = ""
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
default:
if key.Matches(msg, m.keymap.random) {
newSubdomain, err := random.GenerateRandomString(20)
if err != nil {
return m, cmd
}
m.slugInput.SetValue(newSubdomain)
m.slugError = ""
m.slugInput, cmd = m.slugInput.Update(msg)
}
m.slugError = ""
m.slugInput, cmd = m.slugInput.Update(msg)
return m, cmd
}
}
func (m *model) slugView() string {
isCompact := shouldUseCompactLayout(m.width, 70)
isVeryCompact := shouldUseCompactLayout(m.width, 50)
var boxPadding int
var boxMargin int
if isVeryCompact {
boxPadding = 1
boxMargin = 1
} else if isCompact {
boxPadding = 1
boxMargin = 1
} else {
boxPadding = 2
boxMargin = 2
}
titleStyle := lipgloss.NewStyle().
Bold(true).
Foreground(lipgloss.Color("#7D56F4")).
PaddingTop(1).
PaddingBottom(1)
instructionStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#FAFAFA")).
MarginTop(1)
inputBoxStyle := lipgloss.NewStyle().
Border(lipgloss.RoundedBorder()).
BorderForeground(lipgloss.Color("#7D56F4")).
Padding(1, boxPadding).
MarginTop(boxMargin).
MarginBottom(boxMargin)
helpStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#666666")).
Italic(true).
MarginTop(1)
errorBoxStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#FF0000")).
Background(lipgloss.Color("#3D0000")).
Bold(true).
Border(lipgloss.RoundedBorder()).
BorderForeground(lipgloss.Color("#FF0000")).
Padding(0, boxPadding).
MarginTop(1).
MarginBottom(1)
rulesBoxWidth := getResponsiveWidth(m.width, 10, 30, 60)
rulesBoxStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#FAFAFA")).
Border(lipgloss.RoundedBorder()).
BorderForeground(lipgloss.Color("#7D56F4")).
Padding(0, boxPadding).
MarginTop(1).
MarginBottom(1).
Width(rulesBoxWidth)
var b strings.Builder
var title string
if isVeryCompact {
title = "Edit Subdomain"
} else {
title = "🔧 Edit Subdomain"
}
b.WriteString(titleStyle.Render(title))
b.WriteString("\n\n")
if m.tunnelType != types.HTTP {
warningBoxWidth := getResponsiveWidth(m.width, 10, 30, 60)
warningBoxStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#FFA500")).
Background(lipgloss.Color("#3D2000")).
Bold(true).
Border(lipgloss.RoundedBorder()).
BorderForeground(lipgloss.Color("#FFA500")).
Padding(1, boxPadding).
MarginTop(boxMargin).
MarginBottom(boxMargin).
Width(warningBoxWidth)
var warningText string
if isVeryCompact {
warningText = "⚠️ TCP tunnels don't support custom subdomains."
} else {
warningText = "⚠️ TCP tunnels cannot have custom subdomains. Only HTTP/HTTPS tunnels support subdomain customization."
}
b.WriteString(warningBoxStyle.Render(warningText))
b.WriteString("\n\n")
var helpText string
if isVeryCompact {
helpText = "Press any key to go back"
} else {
helpText = "Press Enter or Esc to go back"
}
b.WriteString(helpStyle.Render(helpText))
return b.String()
}
var rulesContent string
if isVeryCompact {
rulesContent = "Rules:\n3-20 chars\na-z, 0-9, -\nNo leading/trailing -"
} else if isCompact {
rulesContent = "📋 Rules:\n • 3-20 chars\n • a-z, 0-9, -\n • No leading/trailing -"
} else {
rulesContent = "📋 Rules: \n\t• 3-20 chars \n\t• a-z, 0-9, - \n\t• No leading/trailing -"
}
b.WriteString(rulesBoxStyle.Render(rulesContent))
b.WriteString("\n")
var instruction string
if isVeryCompact {
instruction = "Custom subdomain:"
} else {
instruction = "Enter your custom subdomain:"
}
b.WriteString(instructionStyle.Render(instruction))
b.WriteString("\n")
if m.slugError != "" {
errorInputBoxStyle := lipgloss.NewStyle().
Border(lipgloss.RoundedBorder()).
BorderForeground(lipgloss.Color("#FF0000")).
Padding(1, boxPadding).
MarginTop(boxMargin).
MarginBottom(1)
b.WriteString(errorInputBoxStyle.Render(m.slugInput.View()))
b.WriteString("\n")
b.WriteString(errorBoxStyle.Render("❌ " + m.slugError))
b.WriteString("\n")
} else {
b.WriteString(inputBoxStyle.Render(m.slugInput.View()))
b.WriteString("\n")
}
previewURL := buildURL(m.protocol, m.slugInput.Value(), m.domain)
previewWidth := getResponsiveWidth(m.width, 10, 30, 80)
if len(previewURL) > previewWidth-10 {
previewURL = truncateString(previewURL, previewWidth-10)
}
previewStyle := lipgloss.NewStyle().
Foreground(lipgloss.Color("#04B575")).
Italic(true).
Width(previewWidth)
b.WriteString(previewStyle.Render(fmt.Sprintf("Preview: %s", previewURL)))
b.WriteString("\n")
var helpText string
if isVeryCompact {
helpText = "Enter: save • CTRL+R: random • Esc: cancel"
} else {
helpText = "Press Enter to save • CTRL+R for random • Esc to cancel"
}
b.WriteString(helpStyle.Render(helpText))
return b.String()
}
+48 -66
View File
@@ -15,121 +15,103 @@ import (
type Forwarder interface {
Close() error
TunnelType() types.TunnelType
ForwardedPort() uint16
GetTunnelType() types.TunnelType
GetForwardedPort() uint16
}
type SessionRegistry interface {
Remove(key types.SessionKey)
}
type lifecycle struct {
type Lifecycle struct {
status types.Status
conn ssh.Conn
channel ssh.Channel
forwarder Forwarder
slug slug.Slug
slugManager slug.Manager
unregisterClient func(slug string)
startedAt time.Time
sessionRegistry SessionRegistry
portRegistry portUtil.Registry
user string
}
func New(conn ssh.Conn, forwarder Forwarder, slugManager slug.Slug, port portUtil.Registry, sessionRegistry SessionRegistry, user string) Lifecycle {
return &lifecycle{
func NewLifecycle(conn ssh.Conn, forwarder Forwarder, slugManager slug.Manager) *Lifecycle {
return &Lifecycle{
status: types.INITIALIZING,
conn: conn,
channel: nil,
forwarder: forwarder,
slug: slugManager,
slugManager: slugManager,
unregisterClient: nil,
startedAt: time.Now(),
sessionRegistry: sessionRegistry,
portRegistry: port,
user: user,
}
}
type Lifecycle interface {
Connection() ssh.Conn
Channel() ssh.Channel
PortRegistry() portUtil.Registry
User() string
SetChannel(channel ssh.Channel)
func (l *Lifecycle) SetUnregisterClient(unregisterClient func(slug string)) {
l.unregisterClient = unregisterClient
}
type SessionLifecycle interface {
Close() error
SetStatus(status types.Status)
GetConnection() ssh.Conn
GetChannel() ssh.Channel
SetChannel(channel ssh.Channel)
SetUnregisterClient(unregisterClient func(slug string))
IsActive() bool
StartedAt() time.Time
Close() error
}
func (l *lifecycle) PortRegistry() portUtil.Registry {
return l.portRegistry
}
func (l *lifecycle) User() string {
return l.user
}
func (l *lifecycle) Channel() ssh.Channel {
func (l *Lifecycle) GetChannel() ssh.Channel {
return l.channel
}
func (l *lifecycle) SetChannel(channel ssh.Channel) {
func (l *Lifecycle) SetChannel(channel ssh.Channel) {
l.channel = channel
}
func (l *lifecycle) Connection() ssh.Conn {
func (l *Lifecycle) GetConnection() ssh.Conn {
return l.conn
}
func (l *lifecycle) SetStatus(status types.Status) {
func (l *Lifecycle) SetStatus(status types.Status) {
l.status = status
if status == types.RUNNING && l.startedAt.IsZero() {
l.startedAt = time.Now()
}
}
func (l *lifecycle) Close() error {
var firstErr error
tunnelType := l.forwarder.TunnelType()
if err := l.forwarder.Close(); err != nil && !errors.Is(err, net.ErrClosed) {
firstErr = err
func (l *Lifecycle) Close() error {
err := l.forwarder.Close()
if err != nil && !errors.Is(err, net.ErrClosed) {
return err
}
if l.channel != nil {
if err := l.channel.Close(); err != nil && !errors.Is(err, io.EOF) && !errors.Is(err, net.ErrClosed) {
if firstErr == nil {
firstErr = err
}
err := l.channel.Close()
if err != nil && !errors.Is(err, io.EOF) {
return err
}
}
if l.conn != nil {
if err := l.conn.Close(); err != nil && !errors.Is(err, net.ErrClosed) {
if firstErr == nil {
firstErr = err
}
}
}
clientSlug := l.slug.String()
key := types.SessionKey{
Id: clientSlug,
Type: tunnelType,
}
l.sessionRegistry.Remove(key)
if tunnelType == types.TCP {
if err := l.PortRegistry().SetPortStatus(l.forwarder.ForwardedPort(), false); err != nil && firstErr == nil {
firstErr = err
err := l.conn.Close()
if err != nil && !errors.Is(err, net.ErrClosed) {
return err
}
}
return firstErr
clientSlug := l.slugManager.Get()
if clientSlug != "" {
l.unregisterClient(clientSlug)
}
func (l *lifecycle) IsActive() bool {
if l.forwarder.GetTunnelType() == types.TCP {
err := portUtil.Default.SetPortStatus(l.forwarder.GetForwardedPort(), false)
if err != nil {
return err
}
}
return nil
}
func (l *Lifecycle) IsActive() bool {
return l.status == types.RUNNING
}
func (l *lifecycle) StartedAt() time.Time {
func (l *Lifecycle) StartedAt() time.Time {
return l.startedAt
}
+47 -66
View File
@@ -3,148 +3,129 @@ package session
import (
"fmt"
"sync"
"tunnel_pls/types"
)
type Key = types.SessionKey
type Registry interface {
Get(key Key) (session Session, err error)
GetWithUser(user string, key Key) (session Session, err error)
Update(user string, oldKey, newKey Key) error
Register(key Key, session Session) (success bool)
Remove(key Key)
GetAllSessionFromUser(user string) []Session
Get(slug string) (session *SSHSession, err error)
Update(oldSlug, newSlug string) error
Register(slug string, session *SSHSession) (success bool)
Remove(slug string)
GetAllSessionFromUser(user string) []*SSHSession
}
type registry struct {
mu sync.RWMutex
byUser map[string]map[Key]Session
slugIndex map[Key]string
byUser map[string]map[string]*SSHSession
slugIndex map[string]string
}
func NewRegistry() Registry {
return &registry{
byUser: make(map[string]map[Key]Session),
slugIndex: make(map[Key]string),
byUser: make(map[string]map[string]*SSHSession),
slugIndex: make(map[string]string),
}
}
func (r *registry) Get(key Key) (session Session, err error) {
func (r *registry) Get(slug string) (session *SSHSession, err error) {
r.mu.RLock()
defer r.mu.RUnlock()
userID, ok := r.slugIndex[key]
userID, ok := r.slugIndex[slug]
if !ok {
return nil, fmt.Errorf("session not found")
}
client, ok := r.byUser[userID][key]
client, ok := r.byUser[userID][slug]
if !ok {
return nil, fmt.Errorf("session not found")
}
return client, nil
}
func (r *registry) GetWithUser(user string, key Key) (session Session, err error) {
r.mu.RLock()
defer r.mu.RUnlock()
client, ok := r.byUser[user][key]
if !ok {
return nil, fmt.Errorf("session not found")
}
return client, nil
}
func (r *registry) Update(user string, oldKey, newKey Key) error {
if oldKey.Type != newKey.Type {
return fmt.Errorf("tunnel type cannot change")
}
if newKey.Type != types.HTTP {
return fmt.Errorf("non http tunnel cannot change slug")
}
if isForbiddenSlug(newKey.Id) {
func (r *registry) Update(oldSlug, newSlug string) error {
if isForbiddenSlug(newSlug) {
return fmt.Errorf("this subdomain is reserved. Please choose a different one")
}
if !isValidSlug(newKey.Id) {
} else if !isValidSlug(newSlug) {
return fmt.Errorf("invalid subdomain. Follow the rules")
}
r.mu.Lock()
defer r.mu.Unlock()
if _, exists := r.slugIndex[newKey]; exists && newKey != oldKey {
return fmt.Errorf("someone already uses this subdomain")
}
client, ok := r.byUser[user][oldKey]
userID, ok := r.slugIndex[oldSlug]
if !ok {
return fmt.Errorf("session not found")
}
delete(r.byUser[user], oldKey)
delete(r.slugIndex, oldKey)
client.Slug().Set(newKey.Id)
r.slugIndex[newKey] = user
if r.byUser[user] == nil {
r.byUser[user] = make(map[Key]Session)
if _, exists := r.slugIndex[newSlug]; exists && newSlug != oldSlug {
return fmt.Errorf("someone already uses this subdomain")
}
r.byUser[user][newKey] = client
client, ok := r.byUser[userID][oldSlug]
if !ok {
return fmt.Errorf("session not found")
}
delete(r.byUser[userID], oldSlug)
delete(r.slugIndex, oldSlug)
client.slugManager.Set(newSlug)
r.slugIndex[newSlug] = userID
if r.byUser[userID] == nil {
r.byUser[userID] = make(map[string]*SSHSession)
}
r.byUser[userID][newSlug] = client
return nil
}
func (r *registry) Register(key Key, session Session) (success bool) {
func (r *registry) Register(slug string, session *SSHSession) (success bool) {
r.mu.Lock()
defer r.mu.Unlock()
if _, exists := r.slugIndex[key]; exists {
if _, exists := r.slugIndex[slug]; exists {
return false
}
userID := session.Lifecycle().User()
userID := session.userID
if r.byUser[userID] == nil {
r.byUser[userID] = make(map[Key]Session)
r.byUser[userID] = make(map[string]*SSHSession)
}
r.byUser[userID][key] = session
r.slugIndex[key] = userID
r.byUser[userID][slug] = session
r.slugIndex[slug] = userID
return true
}
func (r *registry) GetAllSessionFromUser(user string) []Session {
func (r *registry) GetAllSessionFromUser(user string) []*SSHSession {
r.mu.RLock()
defer r.mu.RUnlock()
m := r.byUser[user]
if len(m) == 0 {
return []Session{}
return []*SSHSession{}
}
sessions := make([]Session, 0, len(m))
sessions := make([]*SSHSession, 0, len(m))
for _, s := range m {
sessions = append(sessions, s)
}
return sessions
}
func (r *registry) Remove(key Key) {
func (r *registry) Remove(slug string) {
r.mu.Lock()
defer r.mu.Unlock()
userID, ok := r.slugIndex[key]
userID, ok := r.slugIndex[slug]
if !ok {
return
}
delete(r.byUser[userID], key)
delete(r.byUser[userID], slug)
if len(r.byUser[userID]) == 0 {
delete(r.byUser, userID)
}
delete(r.slugIndex, key)
delete(r.slugIndex, slug)
}
func isValidSlug(slug string) bool {
+69 -354
View File
@@ -1,26 +1,75 @@
package session
import (
"bytes"
"encoding/binary"
"errors"
"fmt"
"io"
"log"
"net"
"time"
"tunnel_pls/internal/config"
portUtil "tunnel_pls/internal/port"
"tunnel_pls/internal/random"
"tunnel_pls/session/forwarder"
"tunnel_pls/session/interaction"
"tunnel_pls/session/lifecycle"
"tunnel_pls/session/slug"
"tunnel_pls/types"
"golang.org/x/crypto/ssh"
)
type Session interface {
HandleGlobalRequest(ch <-chan *ssh.Request)
HandleTCPIPForward(req *ssh.Request)
HandleHTTPForward(req *ssh.Request, port uint16)
HandleTCPForward(req *ssh.Request, addr string, port uint16)
}
type SSHSession struct {
initialReq <-chan *ssh.Request
sshReqChannel <-chan ssh.NewChannel
lifecycle lifecycle.SessionLifecycle
interaction interaction.Controller
forwarder forwarder.ForwardingController
slugManager slug.Manager
registry Registry
userID string
}
func (s *SSHSession) GetLifecycle() lifecycle.SessionLifecycle {
return s.lifecycle
}
func (s *SSHSession) GetInteraction() interaction.Controller {
return s.interaction
}
func (s *SSHSession) GetForwarder() forwarder.ForwardingController {
return s.forwarder
}
func (s *SSHSession) GetSlugManager() slug.Manager {
return s.slugManager
}
func New(conn *ssh.ServerConn, forwardingReq <-chan *ssh.Request, sshChan <-chan ssh.NewChannel, sessionRegistry Registry, userID string) *SSHSession {
slugManager := slug.NewManager()
forwarderManager := forwarder.NewForwarder(slugManager)
interactionManager := interaction.NewInteraction(slugManager, forwarderManager)
lifecycleManager := lifecycle.NewLifecycle(conn, forwarderManager, slugManager)
interactionManager.SetLifecycle(lifecycleManager)
interactionManager.SetSlugModificator(sessionRegistry.Update)
forwarderManager.SetLifecycle(lifecycleManager)
lifecycleManager.SetUnregisterClient(sessionRegistry.Remove)
return &SSHSession{
initialReq: forwardingReq,
sshReqChannel: sshChan,
lifecycle: lifecycleManager,
interaction: interactionManager,
forwarder: forwarderManager,
slugManager: slugManager,
registry: sessionRegistry,
userID: userID,
}
}
type Detail struct {
ForwardingType string `json:"forwarding_type,omitempty"`
Slug string `json:"slug,omitempty"`
@@ -29,91 +78,18 @@ type Detail struct {
StartedAt time.Time `json:"started_at,omitempty"`
}
type Session interface {
HandleGlobalRequest(ch <-chan *ssh.Request)
HandleTCPIPForward(req *ssh.Request)
HandleHTTPForward(req *ssh.Request, port uint16)
HandleTCPForward(req *ssh.Request, addr string, port uint16)
Lifecycle() lifecycle.Lifecycle
Interaction() interaction.Interaction
Forwarder() forwarder.Forwarder
Slug() slug.Slug
Detail() *Detail
Start() error
}
type session struct {
initialReq <-chan *ssh.Request
sshChan <-chan ssh.NewChannel
lifecycle lifecycle.Lifecycle
interaction interaction.Interaction
forwarder forwarder.Forwarder
slug slug.Slug
registry Registry
}
var blockedReservedPorts = []uint16{1080, 1433, 1521, 1900, 2049, 3306, 3389, 5432, 5900, 6379, 8080, 8443, 9000, 9200, 27017}
func New(conn *ssh.ServerConn, initialReq <-chan *ssh.Request, sshChan <-chan ssh.NewChannel, sessionRegistry Registry, portRegistry portUtil.Registry, user string) Session {
slugManager := slug.New()
forwarderManager := forwarder.New(slugManager, conn)
lifecycleManager := lifecycle.New(conn, forwarderManager, slugManager, portRegistry, sessionRegistry, user)
interactionManager := interaction.New(slugManager, forwarderManager, sessionRegistry, user, lifecycleManager.Close)
return &session{
initialReq: initialReq,
sshChan: sshChan,
lifecycle: lifecycleManager,
interaction: interactionManager,
forwarder: forwarderManager,
slug: slugManager,
registry: sessionRegistry,
}
}
func (s *session) Lifecycle() lifecycle.Lifecycle {
return s.lifecycle
}
func (s *session) Interaction() interaction.Interaction {
return s.interaction
}
func (s *session) Forwarder() forwarder.Forwarder {
return s.forwarder
}
func (s *session) Slug() slug.Slug {
return s.slug
}
func (s *session) Detail() *Detail {
var tunnelType string
if s.forwarder.TunnelType() == types.HTTP {
tunnelType = "HTTP"
} else if s.forwarder.TunnelType() == types.TCP {
tunnelType = "TCP"
} else {
tunnelType = "UNKNOWN"
}
return &Detail{
ForwardingType: tunnelType,
Slug: s.slug.String(),
UserID: s.lifecycle.User(),
func (s *SSHSession) Detail() Detail {
return Detail{
ForwardingType: string(s.forwarder.GetTunnelType()),
Slug: s.slugManager.Get(),
UserID: s.userID,
Active: s.lifecycle.IsActive(),
StartedAt: s.lifecycle.StartedAt(),
}
}
func (s *session) Start() error {
var channel ssh.NewChannel
var ok bool
select {
case channel, ok = <-s.sshChan:
if !ok {
log.Println("Forwarding request channel closed")
return nil
}
func (s *SSHSession) Start() error {
channel := <-s.sshReqChannel
ch, reqs, err := channel.Accept()
if err != nil {
log.Printf("failed to accept channel: %v", err)
@@ -121,43 +97,22 @@ func (s *session) Start() error {
}
go s.HandleGlobalRequest(reqs)
s.lifecycle.SetChannel(ch)
s.interaction.SetChannel(ch)
s.interaction.SetMode(types.INTERACTIVE)
case <-time.After(500 * time.Millisecond):
s.interaction.SetMode(types.HEADLESS)
}
tcpipReq := s.waitForTCPIPForward()
if tcpipReq == nil {
err := s.interaction.Send(fmt.Sprintf("PortRegistry forwarding request not received. Ensure you ran the correct command with -R flag. Example: ssh %s -p %s -R 80:localhost:3000", config.Getenv("DOMAIN", "localhost"), config.Getenv("PORT", "2200")))
_, err := ch.Write([]byte(fmt.Sprintf("Port forwarding request not received. Ensure you ran the correct command with -R flag. Example: ssh %s -p %s -R 80:localhost:3000", config.Getenv("DOMAIN", "localhost"), config.Getenv("PORT", "2200"))))
if err != nil {
return err
}
if err = s.lifecycle.Close(); err != nil {
if err := s.lifecycle.Close(); err != nil {
log.Printf("failed to close session: %v", err)
}
return fmt.Errorf("no forwarding Request")
}
if (s.interaction.Mode() == types.HEADLESS && config.Getenv("MODE", "standalone") == "standalone") && s.lifecycle.User() == "UNAUTHORIZED" {
if err := tcpipReq.Reply(false, nil); err != nil {
log.Printf("cannot reply to tcpip req: %s\n", err)
return err
}
if err := s.lifecycle.Close(); err != nil {
log.Printf("failed to close session: %v", err)
return err
}
return nil
}
s.lifecycle.SetChannel(ch)
s.interaction.SetChannel(ch)
s.HandleTCPIPForward(tcpipReq)
s.interaction.Start()
if err := s.lifecycle.Connection().Wait(); err != nil && !errors.Is(err, io.EOF) && !errors.Is(err, net.ErrClosed) {
log.Printf("ssh connection closed with error: %v", err)
}
if err := s.lifecycle.Close(); err != nil {
log.Printf("failed to close session: %v", err)
@@ -166,7 +121,7 @@ func (s *session) Start() error {
return nil
}
func (s *session) waitForTCPIPForward() *ssh.Request {
func (s *SSHSession) waitForTCPIPForward() *ssh.Request {
select {
case req, ok := <-s.initialReq:
if !ok {
@@ -186,243 +141,3 @@ func (s *session) waitForTCPIPForward() *ssh.Request {
return nil
}
}
func (s *session) HandleGlobalRequest(GlobalRequest <-chan *ssh.Request) {
for req := range GlobalRequest {
switch req.Type {
case "shell", "pty-req":
err := req.Reply(true, nil)
if err != nil {
log.Println("Failed to reply to request:", err)
return
}
case "window-change":
p := req.Payload
if len(p) < 16 {
log.Println("invalid window-change payload")
err := req.Reply(false, nil)
if err != nil {
log.Println("Failed to reply to request:", err)
return
}
return
}
cols := binary.BigEndian.Uint32(p[0:4])
rows := binary.BigEndian.Uint32(p[4:8])
s.interaction.SetWH(int(cols), int(rows))
err := req.Reply(true, nil)
if err != nil {
log.Println("Failed to reply to request:", err)
return
}
default:
log.Println("Unknown request type:", req.Type)
err := req.Reply(false, nil)
if err != nil {
log.Println("Failed to reply to request:", err)
return
}
}
}
}
func (s *session) HandleTCPIPForward(req *ssh.Request) {
log.Println("PortRegistry forwarding request detected")
fail := func(msg string) {
log.Println(msg)
if err := req.Reply(false, nil); err != nil {
log.Println("Failed to reply to request:", err)
return
}
if err := s.lifecycle.Close(); err != nil {
log.Printf("failed to close session: %v", err)
}
}
reader := bytes.NewReader(req.Payload)
addr, err := readSSHString(reader)
if err != nil {
fail(fmt.Sprintf("Failed to read address from payload: %v", err))
return
}
var rawPortToBind uint32
if err = binary.Read(reader, binary.BigEndian, &rawPortToBind); err != nil {
fail(fmt.Sprintf("Failed to read port from payload: %v", err))
return
}
if rawPortToBind > 65535 {
fail(fmt.Sprintf("PortRegistry %d is larger than allowed port of 65535", rawPortToBind))
return
}
portToBind := uint16(rawPortToBind)
if isBlockedPort(portToBind) {
fail(fmt.Sprintf("PortRegistry %d is blocked or restricted", portToBind))
return
}
switch portToBind {
case 80, 443:
s.HandleHTTPForward(req, portToBind)
default:
s.HandleTCPForward(req, addr, portToBind)
}
}
func (s *session) HandleHTTPForward(req *ssh.Request, portToBind uint16) {
fail := func(msg string, key *types.SessionKey) {
log.Println(msg)
if key != nil {
s.registry.Remove(*key)
}
if err := req.Reply(false, nil); err != nil {
log.Println("Failed to reply to request:", err)
}
}
randomString, err := random.GenerateRandomString(20)
if err != nil {
fail(fmt.Sprintf("Failed to create slug: %s", err), nil)
return
}
key := types.SessionKey{Id: randomString, Type: types.HTTP}
if !s.registry.Register(key, s) {
fail(fmt.Sprintf("Failed to register client with slug: %s", randomString), nil)
return
}
buf := new(bytes.Buffer)
err = binary.Write(buf, binary.BigEndian, uint32(portToBind))
if err != nil {
fail(fmt.Sprintf("Failed to write port to buffer: %v", err), &key)
return
}
log.Printf("HTTP forwarding approved on port: %d", portToBind)
err = req.Reply(true, buf.Bytes())
if err != nil {
fail(fmt.Sprintf("Failed to reply to request: %v", err), &key)
return
}
s.forwarder.SetType(types.HTTP)
s.forwarder.SetForwardedPort(portToBind)
s.slug.Set(randomString)
s.lifecycle.SetStatus(types.RUNNING)
}
func (s *session) HandleTCPForward(req *ssh.Request, addr string, portToBind uint16) {
fail := func(msg string) {
log.Println(msg)
if err := req.Reply(false, nil); err != nil {
log.Println("Failed to reply to request:", err)
return
}
if err := s.lifecycle.Close(); err != nil {
log.Printf("failed to close session: %v", err)
}
}
cleanup := func(msg string, port uint16, listener net.Listener, key *types.SessionKey) {
log.Println(msg)
if key != nil {
s.registry.Remove(*key)
}
if port != 0 {
if setErr := s.lifecycle.PortRegistry().SetPortStatus(port, false); setErr != nil {
log.Printf("Failed to reset port status: %v", setErr)
}
}
if listener != nil {
if closeErr := listener.Close(); closeErr != nil {
log.Printf("Failed to close listener: %v", closeErr)
}
}
if err := req.Reply(false, nil); err != nil {
log.Println("Failed to reply to request:", err)
}
_ = s.lifecycle.Close()
}
if portToBind == 0 {
unassigned, ok := s.lifecycle.PortRegistry().GetUnassignedPort()
if !ok {
fail("No available port")
return
}
portToBind = unassigned
}
if claimed := s.lifecycle.PortRegistry().ClaimPort(portToBind); !claimed {
fail(fmt.Sprintf("PortRegistry %d is already in use or restricted", portToBind))
return
}
log.Printf("Requested forwarding on %s:%d", addr, portToBind)
listener, err := net.Listen("tcp", fmt.Sprintf("0.0.0.0:%d", portToBind))
if err != nil {
cleanup(fmt.Sprintf("PortRegistry %d is already in use or restricted", portToBind), portToBind, nil, nil)
return
}
key := types.SessionKey{Id: fmt.Sprintf("%d", portToBind), Type: types.TCP}
if !s.registry.Register(key, s) {
cleanup(fmt.Sprintf("Failed to register TCP client with id: %s", key.Id), portToBind, listener, nil)
return
}
buf := new(bytes.Buffer)
err = binary.Write(buf, binary.BigEndian, uint32(portToBind))
if err != nil {
cleanup(fmt.Sprintf("Failed to write port to buffer: %v", err), portToBind, listener, &key)
return
}
log.Printf("TCP forwarding approved on port: %d", portToBind)
err = req.Reply(true, buf.Bytes())
if err != nil {
cleanup(fmt.Sprintf("Failed to reply to request: %v", err), portToBind, listener, &key)
return
}
s.forwarder.SetType(types.TCP)
s.forwarder.SetListener(listener)
s.forwarder.SetForwardedPort(portToBind)
s.slug.Set(key.Id)
s.lifecycle.SetStatus(types.RUNNING)
go s.forwarder.AcceptTCPConnections()
}
func readSSHString(reader *bytes.Reader) (string, error) {
var length uint32
if err := binary.Read(reader, binary.BigEndian, &length); err != nil {
return "", err
}
strBytes := make([]byte, length)
if _, err := reader.Read(strBytes); err != nil {
return "", err
}
return string(strBytes), nil
}
func isBlockedPort(port uint16) bool {
if port == 80 || port == 443 {
return false
}
if port < 1024 && port != 0 {
return true
}
for _, p := range blockedReservedPorts {
if p == port {
return true
}
}
return false
}
+7 -7
View File
@@ -1,24 +1,24 @@
package slug
type Slug interface {
String() string
type Manager interface {
Get() string
Set(slug string)
}
type slug struct {
type manager struct {
slug string
}
func New() Slug {
return &slug{
func NewManager() Manager {
return &manager{
slug: "",
}
}
func (s *slug) String() string {
func (s *manager) Get() string {
return s.slug
}
func (s *slug) Set(slug string) {
func (s *manager) Set(slug string) {
s.slug = slug
}
+7 -19
View File
@@ -1,32 +1,20 @@
package types
type Status int
type Status string
const (
INITIALIZING Status = iota
RUNNING
INITIALIZING Status = "INITIALIZING"
RUNNING Status = "RUNNING"
SETUP Status = "SETUP"
)
type Mode int
type TunnelType string
const (
INTERACTIVE Mode = iota
HEADLESS
HTTP TunnelType = "HTTP"
TCP TunnelType = "TCP"
)
type TunnelType int
const (
UNKNOWN TunnelType = iota
HTTP
TCP
)
type SessionKey struct {
Id string
Type TunnelType
}
var BadGatewayResponse = []byte("HTTP/1.1 502 Bad Gateway\r\n" +
"Content-Length: 11\r\n" +
"Content-Type: text/plain\r\n\r\n" +