1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
package scala.js
import akka.actor.{Props, ActorRef, Actor, ActorSystem}
import akka.io
import akka.util.ByteString
import play.api.libs.json.JsArray
import play.api.libs.json.Json
import spray.can.Http
import spray.can.server.websockets.model.Frame
import spray.can.server.websockets.model.OpCode
import spray.can.server.websockets.Sockets
import sbt._
import Keys._
import com.typesafe.config.ConfigFactory
import scala.collection.mutable
import akka.io.Tcp
import spray.http.{StatusCodes, HttpResponse, HttpRequest}
import spray.http.HttpHeaders.Connection
import spray.can.server.websockets.model.OpCode.Text
package object workbench extends sbt.Plugin {
val refreshBrowsers = taskKey[Unit]("Sends a message to all connected web pages asking them to refresh the page")
val generateClient = taskKey[File]("generates a .js file that can be embedded in your web page")
val localUrl = settingKey[(String, Int)]("localUrl")
val server = settingKey[ActorRef]("local websocket server")
val fileName = settingKey[String]("name of the generated javascript file")
implicit val system = ActorSystem(
"SystemLol",
config = ConfigFactory.load(ActorSystem.getClass.getClassLoader),
classLoader = ActorSystem.getClass.getClassLoader
)
implicit class pimpedActor(server: ActorRef){
def send(x: JsArray) = {
server ! Frame(
opcode = OpCode.Text,
data = ByteString(x.toString())
)
}
}
val buildSettingsX = Seq(
localUrl := ("localhost", 12345),
fileName := "workbench.js",
server := {
implicit val server = system.actorOf(Props(new SocketServer))
val host = localUrl.value
io.IO(Sockets) ! Http.Bind(server, host._1, host._2)
server
},
extraLoggers := {
val clientLogger = FullLogger{
new Logger {
def log(level: Level.Value, message: => String): Unit =
if(level >= Level.Info) server.value.send(Json.arr("print", level.toString(), message))
def success(message: => String): Unit = server.value.send(Json.arr("print", message))
def trace(t: => Throwable): Unit = server.value.send(Json.arr("print", t.toString))
}
}
val currentFunction = extraLoggers.value
(key: ScopedKey[_]) => clientLogger +: currentFunction(key)
},
refreshBrowsers := {
streams.value.log("Reloading Pages...")
server.value.send(Json.arr("reload"))
},
generateClient := {
val clientTemplate = IO.readStream(getClass.getClassLoader.getResourceAsStream("workbench_template.js"))
val transformed = clientTemplate.replace("<host>", localUrl.value._1).replace("<port>", localUrl.value._2.toString)
val outputFile = (crossTarget in Compile).value / fileName.value
IO.write(outputFile, transformed)
outputFile
}
)
class SocketServer extends Actor{
val sockets: mutable.Set[ActorRef] = mutable.Set.empty
def receive = {
case x: Tcp.Connected => sender ! Tcp.Register(self) // normal Http server init
case req: HttpRequest =>
// Upgrade the connection to websockets if you think the incoming
// request looks good
if (req.headers.contains(Connection("Upgrade"))){
sender ! Sockets.UpgradeServer(Sockets.acceptAllFunction(req), self)
}else{
sender ! HttpResponse(
StatusCodes.OK,
entity="i am a cow"
)
}
case Sockets.Upgraded =>
sockets.add(sender)
println("Browser Open n=" + sockets.size)
case f @ Frame(fin, rsv, Text, maskingKey, data) =>
sockets.foreach(_ ! f.copy(maskingKey=None))
case _: Tcp.ConnectionClosed =>
if (sockets.contains(sender)) println("Browser Closed n=" + sockets.size )
sockets.remove(sender)
case x =>
}
}
}
|
