func newCtlFile(name string, permissions qp.FileMode, user, group string, conn *conn) *ctlFile {
return &ctlFile{
SyntheticFile: trees.NewSyntheticFile(name, permissions, user, group),
mconn: conn,
}
}
func (h *TCPUDPHandler) new(c net.Conn) (trees.File, error) {
curcnt := h.cnt
h.cnt++
conn := &conn{state: "Closed", network: h.network, conn: c}
if c != nil {
conn.state = "Established"
}
dir := trees.NewSyntheticDir(fmt.Sprintf("%d", curcnt), 0777, h.user, h.group)
h.root.Add(fmt.Sprintf("%d", curcnt), dir)
ctlfile := newCtlFile("ctl", 0777, h.user, h.group, conn)
ctlfile.response([]byte(fmt.Sprintf("%d", curcnt)))
dir.Add("ctl", newOpenCounterFile(ctlfile, conn.own, conn.disown))
datafile := newDataFile("data", 0777, h.user, h.group, conn)
dir.Add("data", newOpenCounterFile(datafile, conn.own, conn.disown))
localfile := NewMagicWalkFile("local", 0555, h.user, h.group, func(string) (trees.File, error) {
// BUG(kl): Refresh requires walking to the file!
var cnt []byte
if conn.conn != nil {
y := conn.conn.LocalAddr().String()
cnt = []byte(strings.Replace(y, ":", "!", 1))
}
x := trees.NewSyntheticFile("local", 0555, h.user, h.group)
x.SetContent(cnt)
return newOpenCounterFile(x, conn.own, conn.disown), nil
})
dir.Add("local", localfile)
remotefile := NewMagicWalkFile("remote", 0555, h.user, h.group, func(string) (trees.File, error) {
// BUG(kl): Refresh requires walking to the file!
var cnt []byte
if conn.conn != nil {
y := conn.conn.RemoteAddr().String()
cnt = []byte(strings.Replace(y, ":", "!", 1))
}
x := trees.NewSyntheticFile("remote", 0555, h.user, h.group)
x.SetContent(cnt)
return newOpenCounterFile(x, conn.own, conn.disown), nil
})
dir.Add("remote", remotefile)
statusfile := NewMagicWalkFile("status", 0555, h.user, h.group, func(string) (trees.File, error) {
// BUG(kl): Refresh requires walking to the file!
x := trees.NewSyntheticFile("status", 0555, h.user, h.group)
x.SetContent([]byte(fmt.Sprintf("%s\n", conn.getState())))
return newOpenCounterFile(x, conn.own, conn.disown), nil
})
dir.Add("status", statusfile)
listenfile := NewMagicWalkFile("listen", 0777, h.user, h.group, func(string) (trees.File, error) {
c, err := conn.listen()
if err != nil {
return nil, err
}
return h.new(c)
})
dir.Add("listen", listenfile)
return ctlfile, nil
}
func NewMagicWalkFile(name string, permissions qp.FileMode, user, group string, hook func(user string) (trees.File, error)) *MagicWalkFile {
return &MagicWalkFile{
SyntheticFile: trees.NewSyntheticFile(name, permissions, user, group),
MagicWalkHook: hook,
}
}
func NewCSFile(user, group string) trees.File {
return &csFile{
SyntheticFile: trees.NewSyntheticFile("cs", 0777, user, group),
}
}