1 files changed, 30 insertions, 0 deletions
diff --git a/src/main/kotlin/MailServer.kt b/src/main/kotlin/MailServer.kt
new file mode 100644
index 0000000..94a53c9
--- /dev/null
+++ b/src/main/kotlin/MailServer.kt
@@ -0,0 +1,30 @@
+import kotlinx.coroutines.*
+import java.net.ServerSocket
+import java.net.Socket
+import kotlin.coroutines.EmptyCoroutineContext
+
+class MailServer(
+    val localhostName: String,
+    val scope: CoroutineScope = CoroutineScope(EmptyCoroutineContext)
+) {
+
+    fun createAndLaunchHandlerFor(socket: Socket): Job {
+        val protocol = SMTPReceiveProtocol(localhostName, socket.inetAddress)
+        return protocol.executeAsync(scope + CoroutineName("connection handler from ${socket.inetAddress}"), Protocol.IO.FromSocket(socket))
+    }
+
+    suspend fun createServer(port: Int) {
+        listenToServerSocket(ServerSocket(port))
+    }
+
+    suspend fun listenToServerSocket(serverSocket: ServerSocket) {
+        withContext(Dispatchers.Unconfined) {
+            while (true) {
+                val newIncomingConnection =
+                    withContext(Dispatchers.IO) { serverSocket.accept() }
+                createAndLaunchHandlerFor(newIncomingConnection)
+            }
+        }
+    }
+
+}