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package sshd
import (
"context"
"testing"
"github.com/stretchr/testify/require"
"golang.org/x/crypto/ssh"
)
type rejectCall struct {
reason ssh.RejectionReason
message string
}
type fakeNewChannel struct {
channelType string
extraData []byte
rejectCh chan rejectCall
}
func (f *fakeNewChannel) Accept() (ssh.Channel, <-chan *ssh.Request, error) {
return nil, nil, nil
}
func (f *fakeNewChannel) Reject(reason ssh.RejectionReason, message string) error {
f.rejectCh <- rejectCall{reason: reason, message: message}
return nil
}
func (f *fakeNewChannel) ChannelType() string {
return f.channelType
}
func (f *fakeNewChannel) ExtraData() []byte {
return f.extraData
}
func setup(sessionsNum int64, newChannel *fakeNewChannel) (*connection, chan ssh.NewChannel) {
conn := newConnection(sessionsNum, "127.0.0.1:50000")
chans := make(chan ssh.NewChannel, 1)
chans <- newChannel
return conn, chans
}
func TestPanicDuringSessionIsRecovered(t *testing.T) {
newChannel := &fakeNewChannel{channelType: "session"}
conn, chans := setup(1, newChannel)
numSessions := 0
require.NotPanics(t, func() {
conn.handle(context.Background(), chans, func(context.Context, ssh.Channel, <-chan *ssh.Request) {
numSessions += 1
close(chans)
panic("This is a panic")
})
})
require.Equal(t, numSessions, 1)
}
func TestUnknownChannelType(t *testing.T) {
rejectCh := make(chan rejectCall, 1)
newChannel := &fakeNewChannel{channelType: "unknown session", rejectCh: rejectCh}
conn, chans := setup(1, newChannel)
go func() {
conn.handle(context.Background(), chans, nil)
}()
rejectionData := <-rejectCh
close(rejectCh)
expectedRejection := rejectCall{reason: ssh.UnknownChannelType, message: "unknown channel type"}
require.Equal(t, expectedRejection, rejectionData)
}
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