Files
tunnel-please/session/interaction/interaction.go
bagas 6b4127f0ef
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feat: add authenticated user info and restructure handleConnection
- Display authenticated username in welcome page information box
- Refactor handleConnection function for better structure and clarity
2026-01-07 23:07:02 +07:00

837 lines
21 KiB
Go

package interaction
import (
"context"
"fmt"
"log"
"strings"
"time"
"tunnel_pls/internal/config"
"tunnel_pls/internal/random"
"tunnel_pls/session/slug"
"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"
"github.com/charmbracelet/lipgloss"
"github.com/muesli/termenv"
"golang.org/x/crypto/ssh"
)
type Lifecycle interface {
Close() error
GetUser() string
}
type SessionRegistry interface {
Update(user string, oldKey, newKey types.SessionKey) error
}
type Controller interface {
SetChannel(channel ssh.Channel)
SetLifecycle(lifecycle Lifecycle)
Start()
SetWH(w, h int)
Redraw()
SetSessionRegistry(registry SessionRegistry)
}
type Forwarder interface {
Close() error
GetTunnelType() types.TunnelType
GetForwardedPort() uint16
}
type Interaction struct {
channel ssh.Channel
slugManager slug.Manager
forwarder Forwarder
lifecycle Lifecycle
sessionRegistry SessionRegistry
program *tea.Program
ctx context.Context
cancel context.CancelFunc
}
func (i *Interaction) SetWH(w, h int) {
if i.program != nil {
i.program.Send(tea.WindowSizeMsg{
Width: w,
Height: h,
})
}
}
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{
channel: nil,
slugManager: slugManager,
forwarder: forwarder,
lifecycle: nil,
sessionRegistry: nil,
program: nil,
ctx: ctx,
cancel: cancel,
}
}
func (i *Interaction) SetSessionRegistry(registry SessionRegistry) {
i.sessionRegistry = registry
}
func (i *Interaction) SetLifecycle(lifecycle Lifecycle) {
i.lifecycle = lifecycle
}
func (i *Interaction) SetChannel(channel ssh.Channel) {
i.channel = channel
}
func (i *Interaction) Stop() {
if i.cancel != nil {
i.cancel()
}
if i.program != nil {
i.program.Kill()
i.program = nil
}
}
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:
m.showingComingSoon = false
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
case tea.WindowSizeMsg:
m.width = msg.Width
m.height = msg.Height
m.commandList.SetWidth(msg.Width)
m.commandList.SetHeight(msg.Height - 4)
if msg.Width < 80 {
m.slugInput.Width = msg.Width - 10
} else {
m.slugInput.Width = 50
}
return m, nil
case tea.QuitMsg:
m.quitting = true
return m, tea.Batch(tea.ClearScreen, textinput.Blink, tea.Quit)
case tea.KeyMsg:
if m.showingComingSoon {
m.showingComingSoon = false
return m, tea.Batch(tea.ClearScreen, textinput.Blink)
}
if m.editingSlug {
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.lifecycle.GetUser(), types.SessionKey{
Id: m.interaction.slugManager.Get(),
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 := 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 {
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
}
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() {
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 {
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 {
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 {
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()
}
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.lifecycle.GetUser()
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()
}
func (i *Interaction) Start() {
lipgloss.SetColorProfile(termenv.TrueColor)
domain := config.Getenv("DOMAIN", "localhost")
protocol := "http"
if config.Getenv("TLS_ENABLED", "false") == "true" {
protocol = "https"
}
tunnelType := i.forwarder.GetTunnelType()
port := i.forwarder.GetForwardedPort()
items := []list.Item{
commandItem{name: "slug", desc: "Set custom subdomain"},
commandItem{name: "tunnel-type", desc: "Change tunnel type (Coming Soon)"},
}
delegate := list.NewDefaultDelegate()
delegate.ShowDescription = true
delegate.SetHeight(2)
commandList := list.New(items, delegate, 80, 20)
commandList.Title = "Select a command"
commandList.SetShowStatusBar(false)
commandList.SetFilteringEnabled(false)
commandList.SetShowHelp(false)
ti := textinput.New()
ti.Placeholder = "my-custom-slug"
ti.CharLimit = 20
ti.Width = 50
m := &model{
domain: domain,
protocol: protocol,
tunnelType: tunnelType,
port: port,
commandList: commandList,
slugInput: ti,
interaction: i,
keymap: keymap{
quit: key.NewBinding(
key.WithKeys("q", "ctrl+c"),
key.WithHelp("q", "quit"),
),
command: key.NewBinding(
key.WithKeys("c"),
key.WithHelp("c", "commands"),
),
random: key.NewBinding(
key.WithKeys("ctrl+r"),
key.WithHelp("ctrl+r", "random"),
),
},
help: help.New(),
}
i.program = tea.NewProgram(
m,
tea.WithInput(i.channel),
tea.WithOutput(i.channel),
tea.WithAltScreen(),
tea.WithMouseCellMotion(),
tea.WithoutSignals(),
tea.WithoutSignalHandler(),
tea.WithFPS(30),
)
_, err := i.program.Run()
if err != nil {
log.Printf("Cannot close tea: %s \n", err)
}
i.program.Kill()
i.program = 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)
}