You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@hc.apache.org by Bruce McHaffie <br...@entrust.com> on 2004/03/09 16:23:26 UTC
Chunked upload through SunONE proxy server
Hi, I'm using httpclient to do large file uploads. It works just fine
through a direct connection to the LAN but when I go through iPlanet Web
Proxy Server (3.6) the POST is forwarded to the target host with no body. So
the message inbound to the web server (outbound from the proxy server) is:
POST /fileupload/chunkyserver HTTP/1.1
User-Agent: Jakarta Commons-HttpClient/2.0rc3
Host: apollo.est.com
Transfer-Encoding: chunked
Forwarded: by http://bmchaff.est.com:8082 (iPlanet-Web-Proxy-Server/3.6)
...so I tried SunONE Web Proxy server 3.6 SP4, which is supposed to have
support for Transfer-Encoding="chunked". But it chokes on the chunked post.
The error message is:
"[08/Mar/2004:15:42:18] info: Unable to launch the thread... Exception Code:
-1073741819"
For non-chunked POSTS and for GETS everything is fine. Is there something I
have to set in the header to make it work or am I just wasting my time
trying to do chunking through proxies? Anyone know of proxies that
definitely support Transfer-Encoding="chunked" for upload?
Bruce.
---------------------------------------------------------------------
To unsubscribe, e-mail: commons-httpclient-dev-unsubscribe@jakarta.apache.org
For additional commands, e-mail: commons-httpclient-dev-help@jakarta.apache.org
Re: Chunked upload through SunONE proxy server
Posted by Oleg Kalnichevski <ol...@apache.org>.
Bruce,
Chunk encoding is a feature introduced in the version 1.1 of the HTTP
specification. Older HTTP/1.0 proxies _may_ have various issues with
chunk-encoded content.
If iPlanet proxy is not HTTP/1.1 compliant, there's not much you can do.
I doubt that any special headers are required besides Transfer-Encoding
if the proxy is HTTP/1.1 compliant.
I believe Squid proxy, even though not being fully HTTP/1.1 compliant,
can handle chunk-encoded content. Please refer to the Squid resources
for a more definitive answer, though.
Oleg
On Tue, 2004-03-09 at 16:23, Bruce McHaffie wrote:
> Hi, I'm using httpclient to do large file uploads. It works just fine
> through a direct connection to the LAN but when I go through iPlanet Web
> Proxy Server (3.6) the POST is forwarded to the target host with no body. So
> the message inbound to the web server (outbound from the proxy server) is:
>
> POST /fileupload/chunkyserver HTTP/1.1
> User-Agent: Jakarta Commons-HttpClient/2.0rc3
> Host: apollo.est.com
> Transfer-Encoding: chunked
> Forwarded: by http://bmchaff.est.com:8082 (iPlanet-Web-Proxy-Server/3.6)
>
>
> ...so I tried SunONE Web Proxy server 3.6 SP4, which is supposed to have
> support for Transfer-Encoding="chunked". But it chokes on the chunked post.
> The error message is:
>
> "[08/Mar/2004:15:42:18] info: Unable to launch the thread... Exception Code:
> -1073741819"
>
> For non-chunked POSTS and for GETS everything is fine. Is there something I
> have to set in the header to make it work or am I just wasting my time
> trying to do chunking through proxies? Anyone know of proxies that
> definitely support Transfer-Encoding="chunked" for upload?
>
>
> Bruce.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: commons-httpclient-dev-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: commons-httpclient-dev-help@jakarta.apache.org
>
---------------------------------------------------------------------
To unsubscribe, e-mail: commons-httpclient-dev-unsubscribe@jakarta.apache.org
For additional commands, e-mail: commons-httpclient-dev-help@jakarta.apache.org