bagas
9f4c24a3f3
SonarQube Scan / SonarQube Trigger (push) Successful in 53s
- Close channel and connection first, then remove session - Close forwarded port and forwarder at the end for TCP tunnels - Aggregate all errors using errors.Join instead of failing early
127 lines
2.6 KiB
Go
127 lines
2.6 KiB
Go
package lifecycle
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import (
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"errors"
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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 Forwarder interface {
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Close() error
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TunnelType() types.TunnelType
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ForwardedPort() uint16
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}
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type SessionRegistry interface {
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Remove(key types.SessionKey)
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}
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type lifecycle struct {
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status types.SessionStatus
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conn ssh.Conn
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channel ssh.Channel
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forwarder Forwarder
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slug slug.Slug
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startedAt time.Time
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sessionRegistry SessionRegistry
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portRegistry portUtil.Port
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user string
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}
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func New(conn ssh.Conn, forwarder Forwarder, slugManager slug.Slug, port portUtil.Port, sessionRegistry SessionRegistry, user string) Lifecycle {
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return &lifecycle{
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status: types.SessionStatusINITIALIZING,
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conn: conn,
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channel: nil,
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forwarder: forwarder,
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slug: slugManager,
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startedAt: time.Now(),
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sessionRegistry: sessionRegistry,
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portRegistry: port,
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user: user,
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}
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}
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type Lifecycle interface {
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Connection() ssh.Conn
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PortRegistry() portUtil.Port
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User() string
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SetChannel(channel ssh.Channel)
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SetStatus(status types.SessionStatus)
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IsActive() bool
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StartedAt() time.Time
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Close() error
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}
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func (l *lifecycle) PortRegistry() portUtil.Port {
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return l.portRegistry
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}
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func (l *lifecycle) User() string {
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return l.user
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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) Connection() ssh.Conn {
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return l.conn
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}
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func (l *lifecycle) SetStatus(status types.SessionStatus) {
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l.status = status
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if status == types.SessionStatusRUNNING && l.startedAt.IsZero() {
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l.startedAt = time.Now()
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}
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}
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func closeIfNotNil(c interface{ Close() error }) error {
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if c != nil {
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return c.Close()
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}
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return nil
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}
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func (l *lifecycle) Close() error {
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var errs []error
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tunnelType := l.forwarder.TunnelType()
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if err := closeIfNotNil(l.channel); err != nil {
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errs = append(errs, err)
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}
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if err := closeIfNotNil(l.conn); err != nil {
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errs = append(errs, err)
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}
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clientSlug := l.slug.String()
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key := types.SessionKey{
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Id: clientSlug,
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Type: tunnelType,
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}
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l.sessionRegistry.Remove(key)
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if tunnelType == types.TunnelTypeTCP {
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if err := l.PortRegistry().SetStatus(l.forwarder.ForwardedPort(), false); err != nil {
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errs = append(errs, err)
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}
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if err := l.forwarder.Close(); err != nil {
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errs = append(errs, err)
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}
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}
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return errors.Join(errs...)
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}
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func (l *lifecycle) IsActive() bool {
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return l.status == types.SessionStatusRUNNING
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}
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func (l *lifecycle) StartedAt() time.Time {
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return l.startedAt
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}
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