iteration

lns_server.lua

@@ -1,8 +1,31 @@
 
-modem_location = "right"
+settings.define("lns_server.modem_location", {
+    description = "Modem location",
+    type = "string",
+    default = "right"
+})
+modem_location = settings.get("lns_server.modem_location")
 
+settings.define("lns_server.rednet_hostname", {
+    description = "Rednet hostname",
+    type = "string",
+    default = "test"
+})
 
-rednet.host("lns", "default")
+settings.define("lns_server.require_auth", {
+    description = "Require authentication",
+    type = "boolean",
+    default = false
+})
+require_auth = settings.get("lns_server.require_auth")
+
+settings.define("lns_server.auth_server", {
+    description = "Authentication server",
+    type = "string",
+    default = "auth.box"
+})
+
+rednet.host("lns", settings.get("lns_server.rednet_hostname"))
 rednet.open(modem_location)
 
 local data = {}
@@ -68,9 +91,37 @@ while true do
     end
 
     if request.action == "register" then
-        data[request.hostname] = client_id
-        log("Registered " .. request.hostname .. " as " .. client_id)
-        save_data()
-        rednet.send(client_id, "ok")
+
+        local auth_passed = false
+        if require_auth then
+            local authID = data[auth_server]
+            if authID ~= nil then
+                rednet.send(authID, {
+                    action = "token",
+                    token = request.token
+                })
+
+                local auth_response = rednet.receive()
+                local errorPos, errorEnd = string.find(auth_response, "invalid")
+                if errorPos then
+                    log("Error: " .. auth_response)
+                else
+                    auth_passed = true
+                end
+            else
+                log("Error: Auth server not found to " .. client_id)
+            end
+        else
+            auth_passed = true
+        end
+
+        if auth_passed then
+            data[request.hostname] = client_id
+            log("Registered " .. request.hostname .. " as " .. client_id)
+            save_data()
+            rednet.send(client_id, "ok")
+        else
+            rednet.send(client_id, "auth required")
+        end
     end
 end