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https://github.com/refraction-networking/uquic.git
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07d4fd0991
Application data is now retrieved and restored via two callbacks on the qtls.Config. This allows us the get rid of the rather complex wrapping of the qtls.ClientSessionCache. Furthermore, it makes sure that we only restore the application data when qtls decides to actually use the ticket.
48 lines
1.2 KiB
Go
48 lines
1.2 KiB
Go
package handshake
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import (
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"bytes"
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"errors"
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"fmt"
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"time"
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"github.com/lucas-clemente/quic-go/internal/utils"
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"github.com/lucas-clemente/quic-go/internal/wire"
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)
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const sessionTicketRevision = 2
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type sessionTicket struct {
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Parameters *wire.TransportParameters
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RTT time.Duration // to be encoded in mus
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}
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func (t *sessionTicket) Marshal() []byte {
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b := &bytes.Buffer{}
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utils.WriteVarInt(b, sessionTicketRevision)
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utils.WriteVarInt(b, uint64(t.RTT.Microseconds()))
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t.Parameters.MarshalForSessionTicket(b)
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return b.Bytes()
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}
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func (t *sessionTicket) Unmarshal(b []byte) error {
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r := bytes.NewReader(b)
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rev, err := utils.ReadVarInt(r)
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if err != nil {
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return errors.New("failed to read session ticket revision")
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}
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if rev != sessionTicketRevision {
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return fmt.Errorf("unknown session ticket revision: %d", rev)
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}
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rtt, err := utils.ReadVarInt(r)
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if err != nil {
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return errors.New("failed to read RTT")
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}
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var tp wire.TransportParameters
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if err := tp.UnmarshalFromSessionTicket(r); err != nil {
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return fmt.Errorf("unmarshaling transport parameters from session ticket failed: %s", err.Error())
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}
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t.Parameters = &tp
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t.RTT = time.Duration(rtt) * time.Microsecond
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return nil
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}
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