Remove --controller

This add too much complexity and it can work
without it.

Fix https://github.com/GNS3/gns3-vm/issues/80, #645

gns3server/controller/__init__.py

@@ -224,13 +224,6 @@ class Controller:
         self._settings = val
         self.notification.emit("settings.updated", val)
 
-    def is_enabled(self):
-        """
-        :returns: whether the current instance is the controller
-        of our GNS3 infrastructure.
-        """
-        return Config.instance().get_section_config("Server").getboolean("controller")
-
     @asyncio.coroutine
     def add_compute(self, compute_id=None, name=None, force=False, connect=True, **kwargs):
         """

gns3server/run.py

@@ -92,7 +92,6 @@ def parse_arguments(argv):
     parser.add_argument("--host", help="run on the given host/IP address")
     parser.add_argument("--port", help="run on the given port", type=int)
     parser.add_argument("--ssl", action="store_true", help="run in SSL mode")
-    parser.add_argument("--controller", action="store_true", help="start as a GNS3 controller")
     parser.add_argument("--no-ubridge", action="store_false", help="do not use ubridge to handle node connections")
     parser.add_argument("--config", help="Configuration file")
     parser.add_argument("--certfile", help="SSL cert file")
@@ -124,7 +123,6 @@ def parse_arguments(argv):
         "certkey": config.get("certkey", ""),
         "record": config.get("record", ""),
         "local": config.getboolean("local", False),
-        "controller": config.getboolean("controller", False),
         "use_ubridge": config.getboolean("use_ubridge", True),  # this enables uBridge globally
         "allow": config.getboolean("allow_remote_console", False),
         "quiet": config.getboolean("quiet", False),
@@ -142,7 +140,6 @@ def set_config(args):
     config = Config.instance()
     server_config = config.get_section_config("Server")
     server_config["local"] = str(args.local)
-    server_config["controller"] = str(args.controller)
     server_config["use_ubridge"] = str(args.no_ubridge)
     server_config["allow_remote_console"] = str(args.allow)
     server_config["host"] = args.host
@@ -227,8 +224,6 @@ def run():
 
     set_config(args)
     server_config = Config.instance().get_section_config("Server")
-    if server_config.getboolean("controller"):
-        log.info("Controller mode is enabled.")
 
     if server_config.getboolean("local"):
         log.warning("Local mode is enabled. Beware, clients will have full control on your filesystem")

gns3server/web/route.py

@@ -184,9 +184,6 @@ class Route(object):
                         return response
 
                     # API call
-                    if "controller" in func.__module__ and server_config.getboolean("controller", False) is False:
-                        raise aiohttp.web.HTTPForbidden(text="The server is not a controller")
-
                     request = yield from parse_request(request, input_schema, raw)
                     record_file = server_config.get("record")
                     if record_file:

gns3server/web/web_server.py

@@ -102,8 +102,7 @@ class WebServer:
             yield from self._handler.finish_connections()
             self._handler = None
 
-        if Config.instance().get_section_config("Server").getboolean("controller"):
-            yield from Controller.instance().stop()
+        yield from Controller.instance().stop()
 
         for module in MODULES:
             log.debug("Unloading module {}".format(module.__name__))
@@ -306,8 +305,7 @@ class WebServer:
         self._signal_handling()
         self._exit_handling()
 
-        if server_config.getboolean("controller"):
-            controller_start = asyncio.async(Controller.instance().start())
+        controller_start = asyncio.async(Controller.instance().start())
 
         if server_config.getboolean("shell"):
             asyncio.async(self.start_shell())