go/r3-netstatus/main.go

   1 // (c) Bernhard Tittelbach, 2013
   2
   3 package main
   4
   5 import (
   6     "./r3xmppbot"
   7     pubsub "github.com/tuxychandru/pubsub"
   8     "flag"
   9     "time"
  10     "fmt"
  11     //~ "./brain"
  12     r3events "svn.spreadspace.org/realraum/go.svn/r3events"
  13     zmq "github.com/vaughan0/go-zmq"
  14 )
  15
  16 type SpaceState struct {
  17     present           bool
  18     buttonpress_until int64
  19     door_locked bool
  20     door_shut bool
  21 }
  22
  23 var (
  24     xmpp_login_ struct {jid string; pass string}
  25     xmpp_bot_authstring_ string
  26     xmpp_state_save_dir_ string
  27     r3eventssub_port_ string
  28     button_press_timeout_ int64 = 3600
  29     brain_connect_addr_ string
  30     enable_syslog_, enable_debug_ bool
  31 )
  32
  33 //-------
  34
  35 func init() {
  36     flag.StringVar(&xmpp_login_.jid, "xjid", "realrauminfo@realraum.at/Tuer", "XMPP Bot Login JID")
  37     flag.StringVar(&xmpp_login_.pass, "xpass", "", "XMPP Bot Login Password")
  38     flag.StringVar(&xmpp_bot_authstring_, "xbotauth", "", "String that user use to authenticate themselves to the bot")
  39     flag.StringVar(&xmpp_state_save_dir_,"xstatedir","/flash/var/lib/r3netstatus/",  "Directory to save XMPP bot state in")
  40     flag.StringVar(&r3eventssub_port_, "eventsubport", "tcp://wuzzler.realraum.at:4244", "zmq address to subscribe r3events")
  41     flag.StringVar(&brain_connect_addr_, "brainconnect", "tcp://wuzzler.realraum.at:4245", "address to ask about most recent stored events")
  42     flag.BoolVar(&enable_syslog_, "syslog", false, "enable logging to syslog")
  43     flag.BoolVar(&enable_debug_, "debug", false, "enable debug output")
  44     flag.Parse()
  45 }
  46
  47 //-------
  48
  49 func IfThenElseStr(c bool, strue, sfalse string) string {
  50     if c {return strue} else {return sfalse}
  51 }
  52
  53 func composeDoorLockMessage(locked bool, frontshut r3events.DoorAjarUpdate, doorcmd r3events.DoorCommandEvent, ts int64) string {
  54     var ajarstring string = "";
  55     if frontshut.Shut == false && frontshut.Ts < doorcmd.Ts {
  56         ajarstring = " (still ajar)"
  57     }
  58     if ts - doorcmd.Ts < 30 {
  59         if len(doorcmd.Who) == 0 || doorcmd.Who == "-" {
  60             return fmt.Sprintf("The%s frontdoor was %s by %s at %s.",ajarstring, IfThenElseStr(locked, "locked","unlocked"), doorcmd.Using, time.Unix(ts,0).String())
  61         } else {
  62             return fmt.Sprintf("%s %s the%s frontdoor by %s at %s.",doorcmd.Who, IfThenElseStr(locked, "locked","unlocked"), ajarstring, doorcmd.Using, time.Unix(ts,0).String())
  63         }
  64     } else {
  65         return fmt.Sprintf("The%s frontdoor was %s manually at %s.", ajarstring, IfThenElseStr(locked, "locked","unlocked"), time.Unix(ts,0).String())
  66     }
  67 }
  68
  69 func EventToXMPP(bot *r3xmppbot.XmppBot, events <- chan interface{}, xmpp_presence_events_chan chan <- interface{}) {
  70
  71     defer func() {
  72         if x := recover(); x != nil {
  73             //defer ist called _after_ EventToXMPP function has returned. Thus we recover after returning from this function.
  74             Syslog_.Printf("handleIncomingXMPPStanzas: run time panic: %v", x)
  75         }
  76     }()
  77
  78     var present, frontlock bool = false, true
  79     var last_buttonpress int64 = 0
  80     var last_door_cmd r3events.DoorCommandEvent;
  81     var last_frontdoor_ajar r3events.DoorAjarUpdate = r3events.DoorAjarUpdate{true, 0};
  82     button_msg := "Dooom ! The button has been pressed ! Propably someone is bored and in need of company ! ;-)"
  83     present_status := r3xmppbot.XMPPStatusEvent{r3xmppbot.ShowOnline,"Somebody is present"}
  84     notpresent_status := r3xmppbot.XMPPStatusEvent{r3xmppbot.ShowNotAvailabe,"Nobody is here"}
  85     button_status := r3xmppbot.XMPPStatusEvent{r3xmppbot.ShowFreeForChat, "The button has been pressed :-)"}
  86
  87     xmpp_presence_events_chan <- r3xmppbot.XMPPStatusEvent{r3xmppbot.ShowNotAvailabe, "Nobody is here"}
  88
  89     for eventinterface := range(events) {
  90         Debug_.Printf("event2xmpp: %T %+v", eventinterface, eventinterface)
  91         switch event := eventinterface.(type) {
  92             case r3events.PresenceUpdate:
  93                 present = event.Present
  94                 if present {
  95                     xmpp_presence_events_chan <- present_status
  96                 } else {
  97                     xmpp_presence_events_chan <- notpresent_status
  98                 }
  99             case r3events.DoorCommandEvent:
 100                 last_door_cmd = event
 101                 xmpp_presence_events_chan <- fmt.Sprintln("DoorCommand:",event.Command, "using", event.Using, "by", event.Who, time.Unix(event.Ts,0))
 102             case r3events.DoorLockUpdate:
 103                 if frontlock != event.Locked {
 104                     xmpp_presence_events_chan <- r3xmppbot.XMPPMsgEvent{Msg: composeDoorLockMessage(event.Locked, last_frontdoor_ajar, last_door_cmd, event.Ts), DistributeLevel: r3xmppbot.R3OnlineOnlyInfo, RememberAsStatus: true}
 105                 }
 106                 frontlock = event.Locked
 107            case r3events.DoorAjarUpdate:
 108                 if last_frontdoor_ajar.Shut != event.Shut {
 109                     xmpp_presence_events_chan <- r3xmppbot.XMPPMsgEvent{Msg: fmt.Sprintf("Frontdoor is %s  (%s)",IfThenElseStr(event.Shut,"now shut.","ajar."),time.Unix(event.Ts,0).String()), DistributeLevel: r3xmppbot.R3DebugInfo, RememberAsStatus: false}
 110                 }
 111                 last_frontdoor_ajar = event
 112            case r3events.BackdoorAjarUpdate:
 113                 xmpp_presence_events_chan <- r3xmppbot.XMPPMsgEvent{Msg: fmt.Sprintf("Backdoor is %s  (%s)",IfThenElseStr(event.Shut,"now shut.","ajar!"),time.Unix(event.Ts,0).String()), DistributeLevel: r3xmppbot.R3OnlineOnlyInfo, RememberAsStatus: false}
 114             case r3events.BoreDoomButtonPressEvent:
 115                 xmpp_presence_events_chan <- r3xmppbot.XMPPMsgEvent{Msg: button_msg, DistributeLevel: r3xmppbot.R3OnlineOnlyInfo}
 116                 xmpp_presence_events_chan <- button_status
 117                 last_buttonpress = event.Ts
 118             case r3events.TimeTick:
 119                 if present && last_buttonpress > 0 && time.Now().Unix() - last_buttonpress > button_press_timeout_ {
 120                     xmpp_presence_events_chan <- present_status
 121                     last_buttonpress = 0
 122                 }
 123                 // Try to XMPP Ping the server and if that fails, quit XMPPBot
 124                 if bot.PingServer(900) == false && bot.PingServer(900) == false && bot.PingServer(900) == false && bot.PingServer(900) == false{ return }
 125             case r3events.DoorProblemEvent:
 126                 xmpp_presence_events_chan <- r3xmppbot.XMPPMsgEvent{Msg: fmt.Sprintf("Door Problem: %s. SeverityLevel: %d (%s)",event.Problem, event.Severity, time.Unix(event.Ts,0).String()), DistributeLevel: r3xmppbot.R3OnlineOnlyInfo, RememberAsStatus: false}
 127         }
 128         }
 129 }
 130
 131 func RunXMPPBot(ps *pubsub.PubSub, zmqctx *zmq.Context) {
 132     var xmpperr error
 133     var bot *r3xmppbot.XmppBot
 134     var xmpp_presence_events_chan chan interface{}
 135     for {
 136         bot, xmpp_presence_events_chan, xmpperr = r3xmppbot.NewStartedBot(xmpp_login_.jid, xmpp_login_.pass, xmpp_bot_authstring_, xmpp_state_save_dir_, true)
 137         if xmpperr == nil {
 138             Syslog_.Printf("Successfully (re)started XMPP Bot")
 139             // subscribe before QueryLatestEventsAndInjectThem and EventToXMPP
 140             psevents := ps.Sub("presence","door","buttons","updateinterval")
 141             QueryLatestEventsAndInjectThem(ps, zmqctx)
 142             EventToXMPP(bot, psevents, xmpp_presence_events_chan)
 143             // unsubscribe right away, since we don't known when reconnect will succeed and we don't want to block PubSub
 144             ps.Unsub(psevents, "presence","door","buttons","updateinterval")
 145             bot.StopBot()
 146         } else {
 147             Syslog_.Printf("Error starting XMPP Bot: %s", xmpperr.Error())
 148         }
 149         time.Sleep(10 * time.Second)
 150     }
 151 }
 152
 153 func ParseZMQr3Event(lines [][]byte, ps *pubsub.PubSub) {
 154     evnt, pubsubcat, err := r3events.UnmarshalByteByte2Event(lines)
 155     Debug_.Printf("ParseZMQr3Event: %s %s %s", evnt, pubsubcat, err)
 156     if err != nil { return }
 157     ps.Pub(evnt, pubsubcat)
 158 }
 159
 160 func QueryLatestEventsAndInjectThem(ps *pubsub.PubSub, zmqctx *zmq.Context) {
 161     answ := ZmqsAskQuestionsAndClose(zmqctx, brain_connect_addr_, [][][]byte{
 162         [][]byte{[]byte("BackdoorAjarUpdate")},
 163         [][]byte{[]byte("DoorCommandEvent")},
 164         [][]byte{[]byte("DoorLockUpdate")},
 165         [][]byte{[]byte("DoorAjarUpdate")},
 166         [][]byte{[]byte("PresenceUpdate")},
 167         [][]byte{[]byte("IlluminationSensorUpdate")},
 168         [][]byte{[]byte("TempSensorUpdate")}})
 169     for _, a := range(answ) {
 170         ParseZMQr3Event(a, ps)
 171     }
 172 }
 173
 174 func main() {
 175     if enable_syslog_ { LogEnableSyslog(); r3xmppbot.LogEnableSyslog() }
 176     if enable_debug_ { LogEnableDebuglog(); r3xmppbot.LogEnableDebuglog() }
 177     Syslog_.Print("started")
 178     defer Syslog_.Print("exiting")
 179     zmqctx, zmqsub := ZmqsInit(r3eventssub_port_)
 180     defer zmqctx.Close()
 181     if zmqsub != nil {defer zmqsub.Close()}
 182     if zmqsub == nil {
 183         panic("zmq sockets must not be nil !!")
 184     }
 185
 186     ps := pubsub.New(10)
 187     defer ps.Shutdown()
 188     //~ brn := brain.New()
 189     //~ defer brn.Shutdown()
 190
 191     go EventToWeb(ps)
 192     // --- get update on most recent events ---
 193     QueryLatestEventsAndInjectThem(ps, zmqctx)
 194     go RunXMPPBot(ps, zmqctx)
 195
 196     // --- receive and distribute events ---
 197     ticker := time.NewTicker(time.Duration(6) * time.Minute)
 198     for {
 199     select {
 200         case e := <-zmqsub.In():
 201             ParseZMQr3Event(e, ps) //, brn)
 202         case <-ticker.C:
 203             ps.Pub(r3events.TimeTick{time.Now().Unix()}, "updateinterval")
 204         }
 205     }
 206 }