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From Filip Hanik - Dev Lists <devli...@hanik.com>
Subject Re: Comet over HTTPS: END event recieved immeidately for the first few times
Date Wed, 13 Jul 2011 20:42:54 GMT
is it possible that when you turn on SSL, you are using the regular BIO connector when you
use SSL and Comet is not supported by that connector.
best
Filip

On 7/11/2011 11:05 AM, Sudeep Pradhan wrote:
> Hi Filip,
>
> I have tried the app with tomcat 6.0.32 and 7.0.16, and the result is the same. I am
not able to get it working with https. Http works just fine.
>
> The use case I am trying to address is that, I want to send notifications/events from
a webapp to another webapp asynchronously. The 2 webapps communicate using REST call for other
things. I want to have the same model for notifications. The client webapp will send a Https
GET request and the server webapp will push the notifications asynchronously as a response.
The client can be anything not just a webapp, I will be using curl as the client for testing.
>
> Please let me know if you want to know more.
>
> Thanks,
> Sudeep
>
> -----Original Message-----
> From: Filip Hanik - Dev Lists [mailto:devlists@hanik.com]
> Sent: Sunday, July 10, 2011 8:12 PM
> To: Tomcat Users List
> Subject: Re: Comet over HTTPS: END event recieved immeidately for the first few times
>
> try the latest version of Tomcat 6, if that doesn't work, provide a test case so we can
take a look at it
>
> On 7/8/2011 4:07 PM, Sudeep Pradhan wrote:
>> Any insights on this?
>>
>> -----Original Message-----
>> From: Sudeep Pradhan [mailto:pradhans@vmware.com]
>> Sent: Wednesday, June 29, 2011 4:54 PM
>> To: users@tomcat.apache.org
>> Subject: Comet over HTTPS: END event recieved immeidately for the first few times
>>
>> Hello,
>>
>> I am  using Tomcat 6.0.20 on Ubuntu 10.04 and have written a simple TomcatWeatherServlet
as presented in http://www.ibm.com/developerworks/web/library/wa-cometjava/ I modified the
servlet to stream weather feed to multiple curl clients. I am using curl 7.21.6 as my client.
>>
>> When I run curl -i -k -v -trace https://<IP_Addr>:8443/Weather<https://%3cIP_Addr%3e:8443/Weather>
  from the command-line I get the following response for the first few times:
>>
>> <code>
>> $ curl -i -k -v -trace https://<IP_Addr>:8443/Weather
>> * About to connect() to<IP_Addr>   port 8443 (#0)
>> *   Trying<IP_Addr>... connected
>> * Connected to<IP_Addr>   (<IP_Addr>) port 8443 (#0)
>> * successfully set certificate verify locations:
>> *   CAfile: none
>>     CApath: /etc/ssl/certs
>> * SSLv3, TLS handshake, Client hello (1):
>> * SSLv3, TLS handshake, Server hello (2):
>> * SSLv3, TLS handshake, CERT (11):
>> * SSLv3, TLS handshake, Server key exchange (12):
>> * SSLv3, TLS handshake, Server finished (14):
>> * SSLv3, TLS handshake, Client key exchange (16):
>> * SSLv3, TLS change cipher, Client hello (1):
>> * SSLv3, TLS handshake, Finished (20):
>> * SSLv3, TLS change cipher, Client hello (1):
>> * SSLv3, TLS handshake, Finished (20):
>> * SSL connection using DHE-RSA-AES256-SHA
>> * Server certificate:
>> *              subject: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
>> *              start date: 2009-02-23 23:07:18 GMT
>> *              expire date: 2019-02-21 23:07:18 GMT
>> *              common name: XXXXXXXXXX (does not match '<IP_Addr>')
>> *              issuer: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
>> *              SSL certificate verify result: self signed certificate (18), continuing
anyway.
>>> GET /Weather HTTP/1.1
>>> User-Agent: curl/7.21.6 (x86_64-pc-linux-gnu) libcurl/7.19.7 OpenSSL/0.9.8k zlib/1.2.3.3
libidn/1.15
>>> Host:<IP_Addr>:8443
>>> Accept: */*
>>>
>> <   HTTP/1.1 200 OK
>> HTTP/1.1 200 OK
>> <   Server: Apache-Coyote/1.1
>> Server: Apache-Coyote/1.1
>> <   Content-Length: 0
>> Content-Length: 0
>> <   Date: Wed, 29 Jun 2011 23:40:17 GMT
>> Date: Wed, 29 Jun 2011 23:40:17 GMT
>>
>> <
>> * Connection #0 to host<IP_Addr>   left intact
>> * Closing connection #0
>> * SSLv3, TLS alert, Client hello (1):
>> </code>
>>
>> Observe that Content-Length is 0 in the response. Also when I do get the expected
response which is,
>>
>> <code>
>>> GET /Weather HTTP/1.1
>>> User-Agent: curl/7.21.6 (x86_64-pc-linux-gnu) libcurl/7.19.7 OpenSSL/0.9.8k zlib/1.2.3.3
libidn/1.15
>>> Host:<IP_Addr>:8443
>>> Accept: */*
>>>
>> <   HTTP/1.1 200 OK
>> HTTP/1.1 200 OK
>> <   Server: Apache-Coyote/1.1
>> Server: Apache-Coyote/1.1
>> <   Transfer-Encoding: chunked
>> Transfer-Encoding: chunked
>> <   Date: Wed, 29 Jun 2011 23:46:18 GMT
>> Date: Wed, 29 Jun 2011 23:46:18 GMT
>>
>> <
>> <h2>Conditions for San Jose, CA at 3:52 pm PDT</h2>
>> <img src="http://l.yimg.com/a/i/us/we/52/30.gif"/><br />
>> <b>Current Conditions:</b><br />
>> Partly Cloudy, 68 F<BR />
>> <BR /><b>Forecast:</b><BR />
>> Wed - Mostly Clear. High: 70 Low: 55<br />
>> Thu - Partly Cloudy. High: 77 Low: 57<br />
>> <br />
>> <a href="http://us.rd.yahoo.com/dailynews/rss/weather/San_Jose__CA/*http://weather.yahoo.com/forecast/USCA0993_f.html">Full
Forecast at Yahoo! Weather</a><BR/><BR/>
>> (provided by<a href="http://www.weather.com">The Weather Channel</a>)<br/>
>> <br>
>>
>> </code>
>> I get Transfer-Encoding as chunked and no Content-Length.
>>
>> On Server logs I get for the error are:
>> 16:40:16.916  INFO http-8443-exec-3 TomcatWeatherServlet:41 - Begin for session:
BDD6B1808161F1DA99D5D3207F1A719B
>> 16:40:16.959  INFO http-8443-exec-4 TomcatWeatherServlet:48 - End for session: BDD6B1808161F1DA99D5D3207F1A719B
>> 16:40:17.033  INFO http-8443-exec-4 TomcatWeatherServlet:48 - End for session: BDD6B1808161F1DA99D5D3207F1A719B
>>
>> This was working when I was on HTTP. I have tried to debug this for a lot of time
w/o success. Also I get two END events instead of one as seen in the Logs.  Any insights will
be helpful.
>>
>> Thanks,
>> Sudeep
>>
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