Replace port in HTTP flow for docker

gns3server/modules/docker/docker_vm.py

@@ -393,7 +393,13 @@ class DockerVM(BaseVM):
         """
         log.debug("Forward HTTP for %s to %d", self.name, self._console_http_port)
         command = ["docker", "exec", "-i", self._cid, "/gns3/bin/busybox", "nc", "127.0.0.1", str(self._console_http_port)]
-        server = AsyncioRawCommandServer(command)
+        # We replace the port in the server answer otherwise somelink could be broke
+        server = AsyncioRawCommandServer(command, replaces=[
+            (
+                ':{}'.format(self._console_http_port).encode(),
+                ':{}'.format(self.console).encode(),
+            )
+        ])
         self._telnet_servers.append((yield from asyncio.start_server(server.run, self._manager.port_manager.console_host, self.console)))
 
     @asyncio.coroutine

gns3server/utils/asyncio/raw_command_server.py

@@ -24,14 +24,20 @@ log = logging.getLogger(__name__)
 
 READ_SIZE = 4096
 
+
 class AsyncioRawCommandServer:
     """
     Expose a process on the network his stdoud and stdin will be forward
     on network
     """
 
-    def __init__(self, command):
+    def __init__(self, command, replaces=[]):
+        """
+        :param command: Command to run
+        :param replaces: List of tuple to replace in the output ex: [(b":8080", b":6000")]
+        """
         self._command = command
+        self._replaces = replaces
 
     @asyncio.coroutine
     def run(self, network_reader, network_writer):
@@ -73,6 +79,8 @@ class AsyncioRawCommandServer:
 
                     reader_read = asyncio.async(process_reader.read(READ_SIZE))
 
+                    for replace in self._replaces:
+                        data = data.replace(replace[0], replace[1])
                     network_writer.write(data)
                     yield from network_writer.drain()