[undertow-dev] Proxying WebSockets

[Stuart Douglas]

I just tested this, the proxy is working fine, for some reason your site is
closing the connection (probably because the URL that is sent over the
connection does not match?).

If you open up Wireshark and look at what actually gets sent it looks like:

Browser text frame:
::json::{\"type\":\"init\",\"pageId\":\"f00f144d9ac5fd206e6304087148d345\",\"url\":\"
http://localhost:8080/example/realtime/chat.html\"}

Browser text frame:
::json::{\"id\":\"chatMessage\",\"type\":\"change\",\"target\":\"chatMessage\",\"value\":\"test3\"}

Server close frame:
Close: Internal Server (1011)
Reason: RuntimeException

I would suggest that the "url" pointing to localhost is breaking something
in your server side code, but the proxy is working 100% as expected.

Stuart



On Fri, Jun 3, 2016 at 5:01 PM, Hicks, Matt <matt at matthicks.com> wrote:

> Hi Stuart, any updates on this?  Sorry to pester, I'm just hoping to use
> Undertow for a project I'm working on, but it's contingent on being able to
> proxy websockets.
>
>
> On Wed, May 25, 2016 at 9:39 AM Stuart Douglas <sdouglas at redhat.com>
> wrote:
>
>> I am traveling and in meetings all week, I will look into it next week.
>>
>> Stuart
>>
>> On Wed, May 25, 2016 at 3:54 PM, Hicks, Matt <matt at matthicks.com> wrote:
>>
>>> Stuart, is there anything else you need from me to look into this
>>> further?
>>>
>>> On Mon, May 23, 2016 at 11:29 AM Hicks, Matt <matt at matthicks.com> wrote:
>>>
>>>> Yes, I do. You can run the example code and it runs against
>>>> hyperscala.org.  If you go to
>>>> http://hyperscala.org/example/realtime/chat.html or
>>>> http://localhost:8080/example/realtime/chat.html you can test the Chat
>>>> example that uses WebSockets.  If you connect directly it works fine, if
>>>> you connect via the Proxy it doesn't.
>>>>
>>>> On Mon, May 23, 2016, 11:17 AM Stuart Douglas <sdouglas at redhat.com>
>>>> wrote:
>>>>
>>>>> Do you have a reproduce I can run (complete with JS etc so I can see
>>>>> exactly what is going on)?
>>>>>
>>>>> Stuart
>>>>>
>>>>> On Mon, May 23, 2016 at 3:24 PM, Hicks, Matt <matt at matthicks.com>
>>>>> wrote:
>>>>>
>>>>>> Stuart, I created a ticket with all the information I know to provide:
>>>>>>
>>>>>>
>>>>>> [UNDERTOW-714] Broken WebSocket Proxying Support - JBoss Issue
>>>>>> Tracker <https://issues.jboss.org/browse/UNDERTOW-714?_sscc=t>
>>>>>> I have been attempting to write a test proxy server to proxy
>>>>>> explicitly to another server.
>>>>>> <https://issues.jboss.org/browse/UNDERTOW-714?_sscc=t>
>>>>>> issues.jboss.org
>>>>>> <https://issues.jboss.org/browse/UNDERTOW-714?_sscc=t> [image:
>>>>>> Mixmax] <https://mixmax.com/r/rExsBBgirNC89QPSv>
>>>>>>
>>>>>>
>>>>>> I'm not positive which side is closing the connection, but looking at
>>>>>> the JavaScript console it's showing the connection is being closed almost
>>>>>> immediately after any message is sent from the browser to the server.
>>>>>>
>>>>>> On Mon, May 23, 2016 at 2:48 AM Stuart Douglas <sdouglas at redhat.com>
>>>>>> wrote:
>>>>>>
>>>>>>> When you say it does not work exactly what behaviour are you seeing?
>>>>>>> Does the connection get established? If it gets established and then fails
>>>>>>> which side drops the connection?
>>>>>>>
>>>>>>> We have extensive tests for this in the test suite, as web socket
>>>>>>> tests are run through the proxy server, we need more info to see why it is
>>>>>>> not working for you.
>>>>>>>
>>>>>>> Stuart
>>>>>>>
>>>>>>> On Fri, May 20, 2016 at 1:18 AM, Hicks, Matt <matt at matthicks.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> I did some additional testing with 2.0.0.Alpha1 and got the exact
>>>>>>>> same results.  If there is some way to accomplish proper proxying with
>>>>>>>> Undertow I'm not seeing it.
>>>>>>>>
>>>>>>>> Should I file a bug report?
>>>>>>>>
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> undertow-dev mailing list
>>>>>>>> undertow-dev at lists.jboss.org
>>>>>>>> https://lists.jboss.org/mailman/listinfo/undertow-dev
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>
>>
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