Re: [Ryu-devel] 404 error when using ryu gui. Is it a bug?

[IWAMOTO T. <iw...@va...>]

On Tue, 08 May 2018 19:27:42 +0900,
林佳烁 wrote:
> 
> [1  <text/plain; GBK (base64)>]
> 在 2018-05-08 16:31:30，"IWAMOTO Toshihiro" <iw...@va...> 写道：
> >On Tue, 08 May 2018 11:39:38 +0900,
> >林佳烁 wrote:
> >> 
> >> [1  <multipart/alternative (7bit)>]
> >> [1.1  <text/plain; GBK (base64)>]
> >> Hi,
> >> 
> >> 
> >> I want to integrate gui_topology.py which is in ryu/app/gui_topology/ with myapp.py. 
> >> However, I recieve 404 responses after I add a line of code into a copy version of gui_topology.py in a new folder.
> >> 
> >> 
> >> My operation to the scripts is as follow:
> >> $ cd ~/ryu
> >> $ cp -r ryu/app/gui_topology ryu/app/myfolder
> >> $ cp ryu/app/simple_switch_13.py ryu/app/myfolder/
> >> Then I add a line of code, " app_manager.require_app(PATH + '/simple_switch_13.py') ", at the bottom of gui_topology.py.
> >> $ PYTHONPATH=. ./bin/ryu run ryu/app/myfolder/gui_topology.py --observe-links
> >> 
> >> 
> >> Then I access http://localhost:8080 with my web browser and I get these reponses in the terminal of the controller.
> >> 127.0.0.1 - - [08/May/2018 10:27:34] "GET / HTTP/1.1" 200 515 0.011610
> >> 127.0.0.1 - - [08/May/2018 10:27:34] "GET /ryu.topology.css HTTP/1.1" 200 514 0.000825
> >> (7006) accepted ('127.0.0.1', 51232)
> >> 127.0.0.1 - - [08/May/2018 10:27:34] "GET /ryu.topology.js HTTP/1.1" 200 8652 0.003208
> >> 127.0.0.1 - - [08/May/2018 10:27:35] "GET /v1.0/topology/switches HTTP/1.1" 404 319 0.000844
> >> (7006) accepted ('127.0.0.1', 51238)
> >> 127.0.0.1 - - [08/May/2018 10:27:35] "GET /v1.0/topology/ws HTTP/1.1" 404 339 0.001272
> >> 127.0.0.1 - - [08/May/2018 10:27:35] "GET /v1.0/topology/links HTTP/1.1" 404 316 0.000961
> >> 
> >> 
> >> However, after I rename the folder frome myfolder to gui_topo. It works fine!
> >
> >Is it gui_topo or gui_topology?
> 
> It is gui_topo. In fact, I have tried to rename the folder differently for several times. Some names can work fine and some can not.
> In the example above, gui_topo works fine andmyfolder not.

As IWASE-san said, this seems to be a routes issue.
I'm not sure how a directory name change affects, but could you try
the following patch before copying gui_topology.py?


diff --git a/ryu/app/gui_topology/gui_topology.py b/ryu/app/gui_topology/gui_topology.py
index ed4857a5..52f42166 100644
--- a/ryu/app/gui_topology/gui_topology.py
+++ b/ryu/app/gui_topology/gui_topology.py
@@ -56,7 +56,7 @@ class GUIServerController(ControllerBase):
         path = "%s/html/" % PATH
         self.static_app = DirectoryApp(path)
 
-    @route('topology', '/{filename:.*}')
+    @route('topology', '/{filename}')
     def static_handler(self, req, **kwargs):
         if kwargs['filename']:
             req.path_info = kwargs['filename']

--
IWAMOTO Toshihiro