82 lines
2.0 KiB
Go
82 lines
2.0 KiB
Go
package docks
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import (
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"context"
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"time"
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"github.com/safing/portbase/container"
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"github.com/safing/portbase/log"
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"github.com/safing/portmaster/spn/terminal"
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)
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const (
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defaultTerminalIdleTimeout = 15 * time.Minute
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remoteTerminalIdleTimeout = 30 * time.Minute
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)
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// EstablishNewTerminal establishes a new terminal with the crane.
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func (crane *Crane) EstablishNewTerminal(
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localTerm terminal.Terminal,
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initData *container.Container,
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) *terminal.Error {
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// Create message.
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msg := terminal.NewEmptyMsg()
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msg.FlowID = localTerm.ID()
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msg.Type = terminal.MsgTypeInit
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msg.Data = initData
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// Register terminal with crane.
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crane.setTerminal(localTerm)
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// Send message.
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select {
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case crane.controllerMsgs <- msg:
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log.Debugf("spn/docks: %s initiated new terminal %d", crane, localTerm.ID())
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return nil
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case <-crane.ctx.Done():
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crane.AbandonTerminal(localTerm.ID(), terminal.ErrStopping.With("initiation aborted"))
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return terminal.ErrStopping
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}
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}
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func (crane *Crane) establishTerminal(id uint32, initData *container.Container) {
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// Create new remote crane terminal.
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newTerminal, _, err := NewRemoteCraneTerminal(
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crane,
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id,
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initData,
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)
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if err == nil {
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// Connections via public cranes have a timeout.
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if crane.Public() {
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newTerminal.TerminalBase.SetTimeout(remoteTerminalIdleTimeout)
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}
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// Register terminal with crane.
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crane.setTerminal(newTerminal)
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log.Debugf("spn/docks: %s established new crane terminal %d", crane, newTerminal.ID())
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return
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}
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// If something goes wrong, send an error back.
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log.Warningf("spn/docks: %s failed to establish crane terminal: %s", crane, err)
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// Build abandon message.
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msg := terminal.NewMsg(err.Pack())
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msg.FlowID = id
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msg.Type = terminal.MsgTypeStop
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// Send message directly, or async.
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select {
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case crane.terminalMsgs <- msg:
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default:
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// Send error async.
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module.StartWorker("abandon terminal", func(ctx context.Context) error {
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select {
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case crane.terminalMsgs <- msg:
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case <-ctx.Done():
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}
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return nil
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})
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}
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}
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