127 lines
2.7 KiB
Go
127 lines
2.7 KiB
Go
package lifecycle
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import (
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"errors"
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"fmt"
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"io"
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"log"
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"net"
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"time"
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portUtil "tunnel_pls/internal/port"
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"tunnel_pls/session/slug"
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"tunnel_pls/types"
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"golang.org/x/crypto/ssh"
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)
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type Interaction interface {
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SendMessage(string)
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}
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type Forwarder interface {
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Close() error
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GetTunnelType() types.TunnelType
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GetForwardedPort() uint16
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}
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type Lifecycle struct {
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Status types.Status
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Conn ssh.Conn
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Channel ssh.Channel
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Interaction Interaction
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Forwarder Forwarder
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SlugManager slug.Manager
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unregisterClient func(slug string)
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}
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func (l *Lifecycle) SetUnregisterClient(unregisterClient func(slug string)) {
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l.unregisterClient = unregisterClient
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}
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type SessionLifecycle interface {
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Close() error
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WaitForRunningStatus()
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SetStatus(status types.Status)
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GetConnection() ssh.Conn
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GetChannel() ssh.Channel
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SetChannel(channel ssh.Channel)
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SetUnregisterClient(unregisterClient func(slug string))
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}
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func (l *Lifecycle) GetChannel() ssh.Channel {
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return l.Channel
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}
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func (l *Lifecycle) SetChannel(channel ssh.Channel) {
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l.Channel = channel
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}
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func (l *Lifecycle) GetConnection() ssh.Conn {
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return l.Conn
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}
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func (l *Lifecycle) SetStatus(status types.Status) {
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l.Status = status
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}
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func (l *Lifecycle) WaitForRunningStatus() {
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timeout := time.After(3 * time.Second)
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ticker := time.NewTicker(150 * time.Millisecond)
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defer ticker.Stop()
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frames := []string{"-", "\\", "|", "/"}
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i := 0
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for {
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select {
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case <-ticker.C:
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l.Interaction.SendMessage(fmt.Sprintf("\rLoading %s", frames[i]))
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i = (i + 1) % len(frames)
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if l.Status == types.RUNNING {
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l.Interaction.SendMessage("\r\033[K")
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return
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}
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case <-timeout:
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l.Interaction.SendMessage("\r\033[K")
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l.Interaction.SendMessage("TCP/IP request not received in time.\r\nCheck your internet connection and confirm the server responds within 3000ms.\r\nEnsure you ran the correct command. For more details, visit https://tunnl.live.\r\n\r\n")
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err := l.Close()
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if err != nil {
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log.Printf("failed to close session: %v", err)
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}
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log.Println("Timeout waiting for session to start running")
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return
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}
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}
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}
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func (l *Lifecycle) Close() error {
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err := l.Forwarder.Close()
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if err != nil && !errors.Is(err, net.ErrClosed) {
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return err
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}
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if l.Channel != nil {
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err := l.Channel.Close()
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if err != nil && !errors.Is(err, io.EOF) {
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return err
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}
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}
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if l.Conn != nil {
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err := l.Conn.Close()
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if err != nil && !errors.Is(err, net.ErrClosed) {
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return err
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}
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}
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clientSlug := l.SlugManager.Get()
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if clientSlug != "" {
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l.unregisterClient(clientSlug)
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}
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if l.Forwarder.GetTunnelType() == types.TCP {
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err := portUtil.Manager.SetPortStatus(l.Forwarder.GetForwardedPort(), false)
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if err != nil {
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return err
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}
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}
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return nil
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}
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