HttpClient and Grizzly Comet Server

["이희승 (Trustin Lee)"]

Hi César,

On 01-Jun-2009 09:16, César Fernando Henriques wrote:
> Hi,
> 
> I'm working with the HttpClient example connecting to a Grizzly Comet
> Server that send data back to the client in a persistent connection
> every a specified amount of time or when a specific event is
> dispatched.
> 
> I'm testing with IExplorer and Firefox and the server works pretty
> well. Now I'm trying connecting with the Netty HttpClient and I just
> can receive the first message (Http Header) without content.
> 
> I'm using the HttpClient from the netty examples packages untouched
> (just added SSL support).
> 
> Doing a telnet to port 80 I can start receiving data.
> 
> If you want to see what I need to replicate open these url in the browser:
> 
> https://proxy.alttab.com.ar/login/daemon
> 
> and in a separate window
> 
> https://proxy.alttab.com.ar/mobile/access
> 
> I'm very new to Netty, so probably  I'm missing something.

I think it's a bug in Grizzly Comet Server.  If I send the request in
HTTP/1.1, then it works fine.  Just replace the version string in the
HttpClient.java with HTTP_1_1, then it will work as you expect:

---- LOG BEGINS ----
$ telnet proxy.alttab.com.ar 80
Trying 190.19.106.99...
Connected to proxy.alttab.com.ar.
Escape character is '^]'.
GET /mobile/access HTTP/1.1
Host: proxy.alttab.com.ar

HTTP/1.1 200 OK
Set-Cookie: JSESSIONID=3951342630233082416; Path=/
Content-Type: text/plain; charset=iso-8859-1
Transfer-Encoding: chunked
Date: Mon, 01 Jun 2009 04:36:41 GMT

1b
Data:data desde el daemon
---- LOG ENDS ----

However, if the client sends HTTP/1.0, the server neither closes the
connection nor sends the chunked content nor sends the content-length in
the header.  That was why you were not receiving data with Netty.

---- LOG BEGINS ----
$ telnet proxy.alttab.com.ar 80
Trying 190.19.106.99...
Connected to proxy.alttab.com.ar.
Escape character is '^]'.
GET /mobile/access HTTP/1.0
Host: proxy.alttab.com.ar

HTTP/1.1 200 OK
Set-Cookie: JSESSIONID=3806627106805071482; Path=/
Content-Type: text/plain; charset=iso-8859-1
Date: Mon, 01 Jun 2009 04:53:29 GMT
Connection: close

Data:data desde el daemon
---- LOG ENDS ----

I've just updated the HttpClient example so that it sends HTTP/1.1
instead of HTTP/1.0 at HttpClient.java:91, and it works just fine.

HTH,
Trustin

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